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authorEliseo Martínez <eliseomarmol@gmail.com>2014-05-12 02:25:17 +0200
committerEliseo Martínez <eliseomarmol@gmail.com>2014-05-15 20:46:01 +0200
commitda51dc9cf202772f60bd2da975dbef257bd9237c (patch)
tree5c16b93238a153f55634e9323077f30c8133970c /src/eval.c
parentffe61e5ba1721340ca51d56bae3ddaca415fb5bc (diff)
downloadrneovim-da51dc9cf202772f60bd2da975dbef257bd9237c.tar.gz
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Introduce nvim namespace: Move files.
Move files from src/ to src/nvim/. - src/nvim/ becomes the new root dir for nvim executable sources. - src/libnvim/ is planned to become root dir of the neovim library.
Diffstat (limited to 'src/eval.c')
-rw-r--r--src/eval.c19819
1 files changed, 0 insertions, 19819 deletions
diff --git a/src/eval.c b/src/eval.c
deleted file mode 100644
index 98ab1ea2fe..0000000000
--- a/src/eval.c
+++ /dev/null
@@ -1,19819 +0,0 @@
-/*
- * VIM - Vi IMproved by Bram Moolenaar
- *
- * Do ":help uganda" in Vim to read copying and usage conditions.
- * Do ":help credits" in Vim to see a list of people who contributed.
- * See README.txt for an overview of the Vim source code.
- */
-
-/*
- * eval.c: Expression evaluation.
- */
-
-#include <string.h>
-#include <stdlib.h>
-
-#include "vim.h"
-#include "eval.h"
-#include "buffer.h"
-#include "charset.h"
-#include "diff.h"
-#include "edit.h"
-#include "ex_cmds.h"
-#include "ex_cmds2.h"
-#include "ex_docmd.h"
-#include "ex_eval.h"
-#include "ex_getln.h"
-#include "fileio.h"
-#include "fold.h"
-#include "getchar.h"
-#include "hashtab.h"
-#include "if_cscope.h"
-#include "indent_c.h"
-#include "indent.h"
-#include "mark.h"
-#include "mbyte.h"
-#include "memline.h"
-#include "memory.h"
-#include "message.h"
-#include "misc1.h"
-#include "misc2.h"
-#include "keymap.h"
-#include "file_search.h"
-#include "garray.h"
-#include "move.h"
-#include "normal.h"
-#include "ops.h"
-#include "option.h"
-#include "os_unix.h"
-#include "path.h"
-#include "popupmnu.h"
-#include "quickfix.h"
-#include "regexp.h"
-#include "screen.h"
-#include "search.h"
-#include "sha256.h"
-#include "spell.h"
-#include "syntax.h"
-#include "tag.h"
-#include "term.h"
-#include "ui.h"
-#include "undo.h"
-#include "version.h"
-#include "window.h"
-#include "os/os.h"
-#include "os/job.h"
-#include "os/rstream.h"
-#include "os/rstream_defs.h"
-#include "os/time.h"
-
-#if defined(FEAT_FLOAT)
-# include <math.h>
-#endif
-
-#define DICT_MAXNEST 100 /* maximum nesting of lists and dicts */
-
-#define DO_NOT_FREE_CNT 99999 /* refcount for dict or list that should not
- be freed. */
-
-/*
- * In a hashtab item "hi_key" points to "di_key" in a dictitem.
- * This avoids adding a pointer to the hashtab item.
- * DI2HIKEY() converts a dictitem pointer to a hashitem key pointer.
- * HIKEY2DI() converts a hashitem key pointer to a dictitem pointer.
- * HI2DI() converts a hashitem pointer to a dictitem pointer.
- */
-static dictitem_T dumdi;
-#define DI2HIKEY(di) ((di)->di_key)
-#define HIKEY2DI(p) ((dictitem_T *)(p - (dumdi.di_key - (char_u *)&dumdi)))
-#define HI2DI(hi) HIKEY2DI((hi)->hi_key)
-
-/*
- * Structure returned by get_lval() and used by set_var_lval().
- * For a plain name:
- * "name" points to the variable name.
- * "exp_name" is NULL.
- * "tv" is NULL
- * For a magic braces name:
- * "name" points to the expanded variable name.
- * "exp_name" is non-NULL, to be freed later.
- * "tv" is NULL
- * For an index in a list:
- * "name" points to the (expanded) variable name.
- * "exp_name" NULL or non-NULL, to be freed later.
- * "tv" points to the (first) list item value
- * "li" points to the (first) list item
- * "range", "n1", "n2" and "empty2" indicate what items are used.
- * For an existing Dict item:
- * "name" points to the (expanded) variable name.
- * "exp_name" NULL or non-NULL, to be freed later.
- * "tv" points to the dict item value
- * "newkey" is NULL
- * For a non-existing Dict item:
- * "name" points to the (expanded) variable name.
- * "exp_name" NULL or non-NULL, to be freed later.
- * "tv" points to the Dictionary typval_T
- * "newkey" is the key for the new item.
- */
-typedef struct lval_S {
- char_u *ll_name; /* start of variable name (can be NULL) */
- char_u *ll_exp_name; /* NULL or expanded name in allocated memory. */
- typval_T *ll_tv; /* Typeval of item being used. If "newkey"
- isn't NULL it's the Dict to which to add
- the item. */
- listitem_T *ll_li; /* The list item or NULL. */
- list_T *ll_list; /* The list or NULL. */
- int ll_range; /* TRUE when a [i:j] range was used */
- long ll_n1; /* First index for list */
- long ll_n2; /* Second index for list range */
- int ll_empty2; /* Second index is empty: [i:] */
- dict_T *ll_dict; /* The Dictionary or NULL */
- dictitem_T *ll_di; /* The dictitem or NULL */
- char_u *ll_newkey; /* New key for Dict in alloc. mem or NULL. */
-} lval_T;
-
-
-static char *e_letunexp = N_("E18: Unexpected characters in :let");
-static char *e_listidx = N_("E684: list index out of range: %" PRId64);
-static char *e_undefvar = N_("E121: Undefined variable: %s");
-static char *e_missbrac = N_("E111: Missing ']'");
-static char *e_listarg = N_("E686: Argument of %s must be a List");
-static char *e_listdictarg = N_(
- "E712: Argument of %s must be a List or Dictionary");
-static char *e_emptykey = N_("E713: Cannot use empty key for Dictionary");
-static char *e_listreq = N_("E714: List required");
-static char *e_dictreq = N_("E715: Dictionary required");
-static char *e_toomanyarg = N_("E118: Too many arguments for function: %s");
-static char *e_dictkey = N_("E716: Key not present in Dictionary: %s");
-static char *e_funcexts = N_(
- "E122: Function %s already exists, add ! to replace it");
-static char *e_funcdict = N_("E717: Dictionary entry already exists");
-static char *e_funcref = N_("E718: Funcref required");
-static char *e_dictrange = N_("E719: Cannot use [:] with a Dictionary");
-static char *e_letwrong = N_("E734: Wrong variable type for %s=");
-static char *e_nofunc = N_("E130: Unknown function: %s");
-static char *e_illvar = N_("E461: Illegal variable name: %s");
-static char *e_float_as_string = N_("E806: using Float as a String");
-
-static dictitem_T globvars_var; /* variable used for g: */
-#define globvarht globvardict.dv_hashtab
-
-/*
- * Old Vim variables such as "v:version" are also available without the "v:".
- * Also in functions. We need a special hashtable for them.
- */
-static hashtab_T compat_hashtab;
-
-/*
- * When recursively copying lists and dicts we need to remember which ones we
- * have done to avoid endless recursiveness. This unique ID is used for that.
- * The last bit is used for previous_funccal, ignored when comparing.
- */
-static int current_copyID = 0;
-#define COPYID_INC 2
-#define COPYID_MASK (~0x1)
-
-/*
- * Array to hold the hashtab with variables local to each sourced script.
- * Each item holds a variable (nameless) that points to the dict_T.
- */
-typedef struct {
- dictitem_T sv_var;
- dict_T sv_dict;
-} scriptvar_T;
-
-static garray_T ga_scripts = {0, 0, sizeof(scriptvar_T *), 4, NULL};
-#define SCRIPT_SV(id) (((scriptvar_T **)ga_scripts.ga_data)[(id) - 1])
-#define SCRIPT_VARS(id) (SCRIPT_SV(id)->sv_dict.dv_hashtab)
-
-static int echo_attr = 0; /* attributes used for ":echo" */
-
-/* Values for trans_function_name() argument: */
-#define TFN_INT 1 /* internal function name OK */
-#define TFN_QUIET 2 /* no error messages */
-#define TFN_NO_AUTOLOAD 4 /* do not use script autoloading */
-
-/* Values for get_lval() flags argument: */
-#define GLV_QUIET TFN_QUIET /* no error messages */
-#define GLV_NO_AUTOLOAD TFN_NO_AUTOLOAD /* do not use script autoloading */
-
-/*
- * Structure to hold info for a user function.
- */
-typedef struct ufunc ufunc_T;
-
-struct ufunc {
- int uf_varargs; /* variable nr of arguments */
- int uf_flags;
- int uf_calls; /* nr of active calls */
- garray_T uf_args; /* arguments */
- garray_T uf_lines; /* function lines */
- int uf_profiling; /* TRUE when func is being profiled */
- /* profiling the function as a whole */
- int uf_tm_count; /* nr of calls */
- proftime_T uf_tm_total; /* time spent in function + children */
- proftime_T uf_tm_self; /* time spent in function itself */
- proftime_T uf_tm_children; /* time spent in children this call */
- /* profiling the function per line */
- int *uf_tml_count; /* nr of times line was executed */
- proftime_T *uf_tml_total; /* time spent in a line + children */
- proftime_T *uf_tml_self; /* time spent in a line itself */
- proftime_T uf_tml_start; /* start time for current line */
- proftime_T uf_tml_children; /* time spent in children for this line */
- proftime_T uf_tml_wait; /* start wait time for current line */
- int uf_tml_idx; /* index of line being timed; -1 if none */
- int uf_tml_execed; /* line being timed was executed */
- scid_T uf_script_ID; /* ID of script where function was defined,
- used for s: variables */
- int uf_refcount; /* for numbered function: reference count */
- char_u uf_name[1]; /* name of function (actually longer); can
- start with <SNR>123_ (<SNR> is K_SPECIAL
- KS_EXTRA KE_SNR) */
-};
-
-/* function flags */
-#define FC_ABORT 1 /* abort function on error */
-#define FC_RANGE 2 /* function accepts range */
-#define FC_DICT 4 /* Dict function, uses "self" */
-
-/*
- * All user-defined functions are found in this hashtable.
- */
-static hashtab_T func_hashtab;
-
-/* The names of packages that once were loaded are remembered. */
-static garray_T ga_loaded = {0, 0, sizeof(char_u *), 4, NULL};
-
-/* list heads for garbage collection */
-static dict_T *first_dict = NULL; /* list of all dicts */
-static list_T *first_list = NULL; /* list of all lists */
-
-/* From user function to hashitem and back. */
-static ufunc_T dumuf;
-#define UF2HIKEY(fp) ((fp)->uf_name)
-#define HIKEY2UF(p) ((ufunc_T *)(p - (dumuf.uf_name - (char_u *)&dumuf)))
-#define HI2UF(hi) HIKEY2UF((hi)->hi_key)
-
-#define FUNCARG(fp, j) ((char_u **)(fp->uf_args.ga_data))[j]
-#define FUNCLINE(fp, j) ((char_u **)(fp->uf_lines.ga_data))[j]
-
-#define MAX_FUNC_ARGS 20 /* maximum number of function arguments */
-#define VAR_SHORT_LEN 20 /* short variable name length */
-#define FIXVAR_CNT 12 /* number of fixed variables */
-
-/* structure to hold info for a function that is currently being executed. */
-typedef struct funccall_S funccall_T;
-
-struct funccall_S {
- ufunc_T *func; /* function being called */
- int linenr; /* next line to be executed */
- int returned; /* ":return" used */
- struct /* fixed variables for arguments */
- {
- dictitem_T var; /* variable (without room for name) */
- char_u room[VAR_SHORT_LEN]; /* room for the name */
- } fixvar[FIXVAR_CNT];
- dict_T l_vars; /* l: local function variables */
- dictitem_T l_vars_var; /* variable for l: scope */
- dict_T l_avars; /* a: argument variables */
- dictitem_T l_avars_var; /* variable for a: scope */
- list_T l_varlist; /* list for a:000 */
- listitem_T l_listitems[MAX_FUNC_ARGS]; /* listitems for a:000 */
- typval_T *rettv; /* return value */
- linenr_T breakpoint; /* next line with breakpoint or zero */
- int dbg_tick; /* debug_tick when breakpoint was set */
- int level; /* top nesting level of executed function */
- proftime_T prof_child; /* time spent in a child */
- funccall_T *caller; /* calling function or NULL */
-};
-
-/*
- * Info used by a ":for" loop.
- */
-typedef struct {
- int fi_semicolon; /* TRUE if ending in '; var]' */
- int fi_varcount; /* nr of variables in the list */
- listwatch_T fi_lw; /* keep an eye on the item used. */
- list_T *fi_list; /* list being used */
-} forinfo_T;
-
-/*
- * Struct used by trans_function_name()
- */
-typedef struct {
- dict_T *fd_dict; /* Dictionary used */
- char_u *fd_newkey; /* new key in "dict" in allocated memory */
- dictitem_T *fd_di; /* Dictionary item used */
-} funcdict_T;
-
-
-/*
- * Array to hold the value of v: variables.
- * The value is in a dictitem, so that it can also be used in the v: scope.
- * The reason to use this table anyway is for very quick access to the
- * variables with the VV_ defines.
- */
-#include "version_defs.h"
-
-/* values for vv_flags: */
-#define VV_COMPAT 1 /* compatible, also used without "v:" */
-#define VV_RO 2 /* read-only */
-#define VV_RO_SBX 4 /* read-only in the sandbox */
-
-#define VV_NAME(s, t) s, {{t, 0, {0}}, 0, {0}}, {0}
-
-static struct vimvar {
- char *vv_name; /* name of variable, without v: */
- dictitem_T vv_di; /* value and name for key */
- char vv_filler[16]; /* space for LONGEST name below!!! */
- char vv_flags; /* VV_COMPAT, VV_RO, VV_RO_SBX */
-} vimvars[VV_LEN] =
-{
- /*
- * The order here must match the VV_ defines in vim.h!
- * Initializing a union does not work, leave tv.vval empty to get zero's.
- */
- {VV_NAME("count", VAR_NUMBER), VV_COMPAT+VV_RO},
- {VV_NAME("count1", VAR_NUMBER), VV_RO},
- {VV_NAME("prevcount", VAR_NUMBER), VV_RO},
- {VV_NAME("errmsg", VAR_STRING), VV_COMPAT},
- {VV_NAME("warningmsg", VAR_STRING), 0},
- {VV_NAME("statusmsg", VAR_STRING), 0},
- {VV_NAME("shell_error", VAR_NUMBER), VV_COMPAT+VV_RO},
- {VV_NAME("this_session", VAR_STRING), VV_COMPAT},
- {VV_NAME("version", VAR_NUMBER), VV_COMPAT+VV_RO},
- {VV_NAME("lnum", VAR_NUMBER), VV_RO_SBX},
- {VV_NAME("termresponse", VAR_STRING), VV_RO},
- {VV_NAME("fname", VAR_STRING), VV_RO},
- {VV_NAME("lang", VAR_STRING), VV_RO},
- {VV_NAME("lc_time", VAR_STRING), VV_RO},
- {VV_NAME("ctype", VAR_STRING), VV_RO},
- {VV_NAME("charconvert_from", VAR_STRING), VV_RO},
- {VV_NAME("charconvert_to", VAR_STRING), VV_RO},
- {VV_NAME("fname_in", VAR_STRING), VV_RO},
- {VV_NAME("fname_out", VAR_STRING), VV_RO},
- {VV_NAME("fname_new", VAR_STRING), VV_RO},
- {VV_NAME("fname_diff", VAR_STRING), VV_RO},
- {VV_NAME("cmdarg", VAR_STRING), VV_RO},
- {VV_NAME("foldstart", VAR_NUMBER), VV_RO_SBX},
- {VV_NAME("foldend", VAR_NUMBER), VV_RO_SBX},
- {VV_NAME("folddashes", VAR_STRING), VV_RO_SBX},
- {VV_NAME("foldlevel", VAR_NUMBER), VV_RO_SBX},
- {VV_NAME("progname", VAR_STRING), VV_RO},
- {VV_NAME("servername", VAR_STRING), VV_RO},
- {VV_NAME("dying", VAR_NUMBER), VV_RO},
- {VV_NAME("exception", VAR_STRING), VV_RO},
- {VV_NAME("throwpoint", VAR_STRING), VV_RO},
- {VV_NAME("register", VAR_STRING), VV_RO},
- {VV_NAME("cmdbang", VAR_NUMBER), VV_RO},
- {VV_NAME("insertmode", VAR_STRING), VV_RO},
- {VV_NAME("val", VAR_UNKNOWN), VV_RO},
- {VV_NAME("key", VAR_UNKNOWN), VV_RO},
- {VV_NAME("profiling", VAR_NUMBER), VV_RO},
- {VV_NAME("fcs_reason", VAR_STRING), VV_RO},
- {VV_NAME("fcs_choice", VAR_STRING), 0},
- {VV_NAME("beval_bufnr", VAR_NUMBER), VV_RO},
- {VV_NAME("beval_winnr", VAR_NUMBER), VV_RO},
- {VV_NAME("beval_lnum", VAR_NUMBER), VV_RO},
- {VV_NAME("beval_col", VAR_NUMBER), VV_RO},
- {VV_NAME("beval_text", VAR_STRING), VV_RO},
- {VV_NAME("scrollstart", VAR_STRING), 0},
- {VV_NAME("swapname", VAR_STRING), VV_RO},
- {VV_NAME("swapchoice", VAR_STRING), 0},
- {VV_NAME("swapcommand", VAR_STRING), VV_RO},
- {VV_NAME("char", VAR_STRING), 0},
- {VV_NAME("mouse_win", VAR_NUMBER), 0},
- {VV_NAME("mouse_lnum", VAR_NUMBER), 0},
- {VV_NAME("mouse_col", VAR_NUMBER), 0},
- {VV_NAME("operator", VAR_STRING), VV_RO},
- {VV_NAME("searchforward", VAR_NUMBER), 0},
- {VV_NAME("hlsearch", VAR_NUMBER), 0},
- {VV_NAME("oldfiles", VAR_LIST), 0},
- {VV_NAME("windowid", VAR_NUMBER), VV_RO},
- {VV_NAME("progpath", VAR_STRING), VV_RO},
- {VV_NAME("job_data", VAR_LIST), 0}
-};
-
-/* shorthand */
-#define vv_type vv_di.di_tv.v_type
-#define vv_nr vv_di.di_tv.vval.v_number
-#define vv_float vv_di.di_tv.vval.v_float
-#define vv_str vv_di.di_tv.vval.v_string
-#define vv_list vv_di.di_tv.vval.v_list
-#define vv_tv vv_di.di_tv
-
-static dictitem_T vimvars_var; /* variable used for v: */
-#define vimvarht vimvardict.dv_hashtab
-
-static void on_job_stdout(RStream *rstream, void *data, bool eof);
-static void on_job_stderr(RStream *rstream, void *data, bool eof);
-static void on_job_exit(Job *job, void *data);
-static void on_job_data(RStream *rstream, void *data, bool eof, char *type);
-static void apply_job_autocmds(Job *job, char *name, char *type, char *str);
-static void prepare_vimvar(int idx, typval_T *save_tv);
-static void restore_vimvar(int idx, typval_T *save_tv);
-static int ex_let_vars(char_u *arg, typval_T *tv, int copy,
- int semicolon, int var_count,
- char_u *nextchars);
-static char_u *skip_var_list(char_u *arg, int *var_count,
- int *semicolon);
-static char_u *skip_var_one(char_u *arg);
-static void list_hashtable_vars(hashtab_T *ht, char_u *prefix,
- int empty,
- int *first);
-static void list_glob_vars(int *first);
-static void list_buf_vars(int *first);
-static void list_win_vars(int *first);
-static void list_tab_vars(int *first);
-static void list_vim_vars(int *first);
-static void list_script_vars(int *first);
-static void list_func_vars(int *first);
-static char_u *list_arg_vars(exarg_T *eap, char_u *arg, int *first);
-static char_u *ex_let_one(char_u *arg, typval_T *tv, int copy,
- char_u *endchars, char_u *op);
-static int check_changedtick(char_u *arg);
-static char_u *get_lval(char_u *name, typval_T *rettv, lval_T *lp,
- int unlet, int skip, int flags,
- int fne_flags);
-static void clear_lval(lval_T *lp);
-static void set_var_lval(lval_T *lp, char_u *endp, typval_T *rettv,
- int copy,
- char_u *op);
-static int tv_op(typval_T *tv1, typval_T *tv2, char_u *op);
-static void list_fix_watch(list_T *l, listitem_T *item);
-static void ex_unletlock(exarg_T *eap, char_u *argstart, int deep);
-static int do_unlet_var(lval_T *lp, char_u *name_end, int forceit);
-static int do_lock_var(lval_T *lp, char_u *name_end, int deep, int lock);
-static void item_lock(typval_T *tv, int deep, int lock);
-static int tv_islocked(typval_T *tv);
-
-static int eval0(char_u *arg, typval_T *rettv, char_u **nextcmd,
- int evaluate);
-static int eval1(char_u **arg, typval_T *rettv, int evaluate);
-static int eval2(char_u **arg, typval_T *rettv, int evaluate);
-static int eval3(char_u **arg, typval_T *rettv, int evaluate);
-static int eval4(char_u **arg, typval_T *rettv, int evaluate);
-static int eval5(char_u **arg, typval_T *rettv, int evaluate);
-static int eval6(char_u **arg, typval_T *rettv, int evaluate,
- int want_string);
-static int eval7(char_u **arg, typval_T *rettv, int evaluate,
- int want_string);
-
-static int eval_index(char_u **arg, typval_T *rettv, int evaluate,
- int verbose);
-static int get_option_tv(char_u **arg, typval_T *rettv, int evaluate);
-static int get_string_tv(char_u **arg, typval_T *rettv, int evaluate);
-static int get_lit_string_tv(char_u **arg, typval_T *rettv, int evaluate);
-static int get_list_tv(char_u **arg, typval_T *rettv, int evaluate);
-static void rettv_list_alloc(typval_T *rettv);
-static long list_len(list_T *l);
-static int list_equal(list_T *l1, list_T *l2, int ic, int recursive);
-static int dict_equal(dict_T *d1, dict_T *d2, int ic, int recursive);
-static int tv_equal(typval_T *tv1, typval_T *tv2, int ic, int recursive);
-static long list_find_nr(list_T *l, long idx, int *errorp);
-static long list_idx_of_item(list_T *l, listitem_T *item);
-static void list_append_number(list_T *l, varnumber_T n);
-static int list_extend(list_T *l1, list_T *l2, listitem_T *bef);
-static int list_concat(list_T *l1, list_T *l2, typval_T *tv);
-static list_T *list_copy(list_T *orig, int deep, int copyID);
-static char_u *list2string(typval_T *tv, int copyID);
-static int list_join_inner(garray_T *gap, list_T *l, char_u *sep,
- int echo_style, int copyID,
- garray_T *join_gap);
-static int list_join(garray_T *gap, list_T *l, char_u *sep, int echo,
- int copyID);
-static int free_unref_items(int copyID);
-static int rettv_dict_alloc(typval_T *rettv);
-static dictitem_T *dictitem_copy(dictitem_T *org);
-static void dictitem_remove(dict_T *dict, dictitem_T *item);
-static dict_T *dict_copy(dict_T *orig, int deep, int copyID);
-static long dict_len(dict_T *d);
-static char_u *dict2string(typval_T *tv, int copyID);
-static int get_dict_tv(char_u **arg, typval_T *rettv, int evaluate);
-static char_u *echo_string(typval_T *tv, char_u **tofree,
- char_u *numbuf,
- int copyID);
-static char_u *tv2string(typval_T *tv, char_u **tofree, char_u *numbuf,
- int copyID);
-static char_u *string_quote(char_u *str, int function);
-static int string2float(char_u *text, float_T *value);
-static int get_env_tv(char_u **arg, typval_T *rettv, int evaluate);
-static int find_internal_func(char_u *name);
-static char_u *deref_func_name(char_u *name, int *lenp, int no_autoload);
-static int get_func_tv(char_u *name, int len, typval_T *rettv,
- char_u **arg, linenr_T firstline, linenr_T lastline,
- int *doesrange, int evaluate,
- dict_T *selfdict);
-static int call_func(char_u *funcname, int len, typval_T *rettv,
- int argcount, typval_T *argvars,
- linenr_T firstline, linenr_T lastline,
- int *doesrange, int evaluate,
- dict_T *selfdict);
-static void emsg_funcname(char *ermsg, char_u *name);
-static int non_zero_arg(typval_T *argvars);
-
-static void f_abs(typval_T *argvars, typval_T *rettv);
-static void f_acos(typval_T *argvars, typval_T *rettv);
-static void f_add(typval_T *argvars, typval_T *rettv);
-static void f_and(typval_T *argvars, typval_T *rettv);
-static void f_append(typval_T *argvars, typval_T *rettv);
-static void f_argc(typval_T *argvars, typval_T *rettv);
-static void f_argidx(typval_T *argvars, typval_T *rettv);
-static void f_argv(typval_T *argvars, typval_T *rettv);
-static void f_asin(typval_T *argvars, typval_T *rettv);
-static void f_atan(typval_T *argvars, typval_T *rettv);
-static void f_atan2(typval_T *argvars, typval_T *rettv);
-static void f_browse(typval_T *argvars, typval_T *rettv);
-static void f_browsedir(typval_T *argvars, typval_T *rettv);
-static void f_bufexists(typval_T *argvars, typval_T *rettv);
-static void f_buflisted(typval_T *argvars, typval_T *rettv);
-static void f_bufloaded(typval_T *argvars, typval_T *rettv);
-static void f_bufname(typval_T *argvars, typval_T *rettv);
-static void f_bufnr(typval_T *argvars, typval_T *rettv);
-static void f_bufwinnr(typval_T *argvars, typval_T *rettv);
-static void f_byte2line(typval_T *argvars, typval_T *rettv);
-static void byteidx(typval_T *argvars, typval_T *rettv, int comp);
-static void f_byteidx(typval_T *argvars, typval_T *rettv);
-static void f_byteidxcomp(typval_T *argvars, typval_T *rettv);
-static void f_call(typval_T *argvars, typval_T *rettv);
-static void f_ceil(typval_T *argvars, typval_T *rettv);
-static void f_changenr(typval_T *argvars, typval_T *rettv);
-static void f_char2nr(typval_T *argvars, typval_T *rettv);
-static void f_cindent(typval_T *argvars, typval_T *rettv);
-static void f_clearmatches(typval_T *argvars, typval_T *rettv);
-static void f_col(typval_T *argvars, typval_T *rettv);
-static void f_complete(typval_T *argvars, typval_T *rettv);
-static void f_complete_add(typval_T *argvars, typval_T *rettv);
-static void f_complete_check(typval_T *argvars, typval_T *rettv);
-static void f_confirm(typval_T *argvars, typval_T *rettv);
-static void f_copy(typval_T *argvars, typval_T *rettv);
-static void f_cos(typval_T *argvars, typval_T *rettv);
-static void f_cosh(typval_T *argvars, typval_T *rettv);
-static void f_count(typval_T *argvars, typval_T *rettv);
-static void f_cscope_connection(typval_T *argvars, typval_T *rettv);
-static void f_cursor(typval_T *argsvars, typval_T *rettv);
-static void f_deepcopy(typval_T *argvars, typval_T *rettv);
-static void f_delete(typval_T *argvars, typval_T *rettv);
-static void f_did_filetype(typval_T *argvars, typval_T *rettv);
-static void f_diff_filler(typval_T *argvars, typval_T *rettv);
-static void f_diff_hlID(typval_T *argvars, typval_T *rettv);
-static void f_empty(typval_T *argvars, typval_T *rettv);
-static void f_escape(typval_T *argvars, typval_T *rettv);
-static void f_eval(typval_T *argvars, typval_T *rettv);
-static void f_eventhandler(typval_T *argvars, typval_T *rettv);
-static void f_executable(typval_T *argvars, typval_T *rettv);
-static void f_exists(typval_T *argvars, typval_T *rettv);
-static void f_exp(typval_T *argvars, typval_T *rettv);
-static void f_expand(typval_T *argvars, typval_T *rettv);
-static void f_extend(typval_T *argvars, typval_T *rettv);
-static void f_feedkeys(typval_T *argvars, typval_T *rettv);
-static void f_filereadable(typval_T *argvars, typval_T *rettv);
-static void f_filewritable(typval_T *argvars, typval_T *rettv);
-static void f_filter(typval_T *argvars, typval_T *rettv);
-static void f_finddir(typval_T *argvars, typval_T *rettv);
-static void f_findfile(typval_T *argvars, typval_T *rettv);
-static void f_float2nr(typval_T *argvars, typval_T *rettv);
-static void f_floor(typval_T *argvars, typval_T *rettv);
-static void f_fmod(typval_T *argvars, typval_T *rettv);
-static void f_fnameescape(typval_T *argvars, typval_T *rettv);
-static void f_fnamemodify(typval_T *argvars, typval_T *rettv);
-static void f_foldclosed(typval_T *argvars, typval_T *rettv);
-static void f_foldclosedend(typval_T *argvars, typval_T *rettv);
-static void f_foldlevel(typval_T *argvars, typval_T *rettv);
-static void f_foldtext(typval_T *argvars, typval_T *rettv);
-static void f_foldtextresult(typval_T *argvars, typval_T *rettv);
-static void f_foreground(typval_T *argvars, typval_T *rettv);
-static void f_function(typval_T *argvars, typval_T *rettv);
-static void f_garbagecollect(typval_T *argvars, typval_T *rettv);
-static void f_get(typval_T *argvars, typval_T *rettv);
-static void f_getbufline(typval_T *argvars, typval_T *rettv);
-static void f_getbufvar(typval_T *argvars, typval_T *rettv);
-static void f_getchar(typval_T *argvars, typval_T *rettv);
-static void f_getcharmod(typval_T *argvars, typval_T *rettv);
-static void f_getcmdline(typval_T *argvars, typval_T *rettv);
-static void f_getcmdpos(typval_T *argvars, typval_T *rettv);
-static void f_getcmdtype(typval_T *argvars, typval_T *rettv);
-static void f_getcwd(typval_T *argvars, typval_T *rettv);
-static void f_getfontname(typval_T *argvars, typval_T *rettv);
-static void f_getfperm(typval_T *argvars, typval_T *rettv);
-static void f_getfsize(typval_T *argvars, typval_T *rettv);
-static void f_getftime(typval_T *argvars, typval_T *rettv);
-static void f_getftype(typval_T *argvars, typval_T *rettv);
-static void f_getline(typval_T *argvars, typval_T *rettv);
-static void f_getmatches(typval_T *argvars, typval_T *rettv);
-static void f_getpid(typval_T *argvars, typval_T *rettv);
-static void f_getpos(typval_T *argvars, typval_T *rettv);
-static void f_getqflist(typval_T *argvars, typval_T *rettv);
-static void f_getreg(typval_T *argvars, typval_T *rettv);
-static void f_getregtype(typval_T *argvars, typval_T *rettv);
-static void f_gettabvar(typval_T *argvars, typval_T *rettv);
-static void f_gettabwinvar(typval_T *argvars, typval_T *rettv);
-static void f_getwinposx(typval_T *argvars, typval_T *rettv);
-static void f_getwinposy(typval_T *argvars, typval_T *rettv);
-static void f_getwinvar(typval_T *argvars, typval_T *rettv);
-static void f_glob(typval_T *argvars, typval_T *rettv);
-static void f_globpath(typval_T *argvars, typval_T *rettv);
-static void f_has(typval_T *argvars, typval_T *rettv);
-static void f_has_key(typval_T *argvars, typval_T *rettv);
-static void f_haslocaldir(typval_T *argvars, typval_T *rettv);
-static void f_hasmapto(typval_T *argvars, typval_T *rettv);
-static void f_histadd(typval_T *argvars, typval_T *rettv);
-static void f_histdel(typval_T *argvars, typval_T *rettv);
-static void f_histget(typval_T *argvars, typval_T *rettv);
-static void f_histnr(typval_T *argvars, typval_T *rettv);
-static void f_hlID(typval_T *argvars, typval_T *rettv);
-static void f_hlexists(typval_T *argvars, typval_T *rettv);
-static void f_hostname(typval_T *argvars, typval_T *rettv);
-static void f_iconv(typval_T *argvars, typval_T *rettv);
-static void f_indent(typval_T *argvars, typval_T *rettv);
-static void f_index(typval_T *argvars, typval_T *rettv);
-static void f_input(typval_T *argvars, typval_T *rettv);
-static void f_inputdialog(typval_T *argvars, typval_T *rettv);
-static void f_inputlist(typval_T *argvars, typval_T *rettv);
-static void f_inputrestore(typval_T *argvars, typval_T *rettv);
-static void f_inputsave(typval_T *argvars, typval_T *rettv);
-static void f_inputsecret(typval_T *argvars, typval_T *rettv);
-static void f_insert(typval_T *argvars, typval_T *rettv);
-static void f_invert(typval_T *argvars, typval_T *rettv);
-static void f_isdirectory(typval_T *argvars, typval_T *rettv);
-static void f_islocked(typval_T *argvars, typval_T *rettv);
-static void f_items(typval_T *argvars, typval_T *rettv);
-static void f_job_start(typval_T *argvars, typval_T *rettv);
-static void f_job_stop(typval_T *argvars, typval_T *rettv);
-static void f_job_write(typval_T *argvars, typval_T *rettv);
-static void f_join(typval_T *argvars, typval_T *rettv);
-static void f_keys(typval_T *argvars, typval_T *rettv);
-static void f_last_buffer_nr(typval_T *argvars, typval_T *rettv);
-static void f_len(typval_T *argvars, typval_T *rettv);
-static void f_libcall(typval_T *argvars, typval_T *rettv);
-static void f_libcallnr(typval_T *argvars, typval_T *rettv);
-static void f_line(typval_T *argvars, typval_T *rettv);
-static void f_line2byte(typval_T *argvars, typval_T *rettv);
-static void f_lispindent(typval_T *argvars, typval_T *rettv);
-static void f_localtime(typval_T *argvars, typval_T *rettv);
-static void f_log(typval_T *argvars, typval_T *rettv);
-static void f_log10(typval_T *argvars, typval_T *rettv);
-static void f_map(typval_T *argvars, typval_T *rettv);
-static void f_maparg(typval_T *argvars, typval_T *rettv);
-static void f_mapcheck(typval_T *argvars, typval_T *rettv);
-static void f_match(typval_T *argvars, typval_T *rettv);
-static void f_matchadd(typval_T *argvars, typval_T *rettv);
-static void f_matcharg(typval_T *argvars, typval_T *rettv);
-static void f_matchdelete(typval_T *argvars, typval_T *rettv);
-static void f_matchend(typval_T *argvars, typval_T *rettv);
-static void f_matchlist(typval_T *argvars, typval_T *rettv);
-static void f_matchstr(typval_T *argvars, typval_T *rettv);
-static void f_max(typval_T *argvars, typval_T *rettv);
-static void f_min(typval_T *argvars, typval_T *rettv);
-static void f_mkdir(typval_T *argvars, typval_T *rettv);
-static void f_mode(typval_T *argvars, typval_T *rettv);
-static void f_nextnonblank(typval_T *argvars, typval_T *rettv);
-static void f_nr2char(typval_T *argvars, typval_T *rettv);
-static void f_or(typval_T *argvars, typval_T *rettv);
-static void f_pathshorten(typval_T *argvars, typval_T *rettv);
-static void f_pow(typval_T *argvars, typval_T *rettv);
-static void f_prevnonblank(typval_T *argvars, typval_T *rettv);
-static void f_printf(typval_T *argvars, typval_T *rettv);
-static void f_pumvisible(typval_T *argvars, typval_T *rettv);
-static void f_range(typval_T *argvars, typval_T *rettv);
-static void f_readfile(typval_T *argvars, typval_T *rettv);
-static void f_reltime(typval_T *argvars, typval_T *rettv);
-static void f_reltimestr(typval_T *argvars, typval_T *rettv);
-static void f_remote_expr(typval_T *argvars, typval_T *rettv);
-static void f_remote_foreground(typval_T *argvars, typval_T *rettv);
-static void f_remote_peek(typval_T *argvars, typval_T *rettv);
-static void f_remote_read(typval_T *argvars, typval_T *rettv);
-static void f_remote_send(typval_T *argvars, typval_T *rettv);
-static void f_remove(typval_T *argvars, typval_T *rettv);
-static void f_rename(typval_T *argvars, typval_T *rettv);
-static void f_repeat(typval_T *argvars, typval_T *rettv);
-static void f_resolve(typval_T *argvars, typval_T *rettv);
-static void f_reverse(typval_T *argvars, typval_T *rettv);
-static void f_round(typval_T *argvars, typval_T *rettv);
-static void f_screenattr(typval_T *argvars, typval_T *rettv);
-static void f_screenchar(typval_T *argvars, typval_T *rettv);
-static void f_screencol(typval_T *argvars, typval_T *rettv);
-static void f_screenrow(typval_T *argvars, typval_T *rettv);
-static void f_search(typval_T *argvars, typval_T *rettv);
-static void f_searchdecl(typval_T *argvars, typval_T *rettv);
-static void f_searchpair(typval_T *argvars, typval_T *rettv);
-static void f_searchpairpos(typval_T *argvars, typval_T *rettv);
-static void f_searchpos(typval_T *argvars, typval_T *rettv);
-static void f_server2client(typval_T *argvars, typval_T *rettv);
-static void f_serverlist(typval_T *argvars, typval_T *rettv);
-static void f_setbufvar(typval_T *argvars, typval_T *rettv);
-static void f_setcmdpos(typval_T *argvars, typval_T *rettv);
-static void f_setline(typval_T *argvars, typval_T *rettv);
-static void f_setloclist(typval_T *argvars, typval_T *rettv);
-static void f_setmatches(typval_T *argvars, typval_T *rettv);
-static void f_setpos(typval_T *argvars, typval_T *rettv);
-static void f_setqflist(typval_T *argvars, typval_T *rettv);
-static void f_setreg(typval_T *argvars, typval_T *rettv);
-static void f_settabvar(typval_T *argvars, typval_T *rettv);
-static void f_settabwinvar(typval_T *argvars, typval_T *rettv);
-static void f_setwinvar(typval_T *argvars, typval_T *rettv);
-static void f_sha256(typval_T *argvars, typval_T *rettv);
-static void f_shellescape(typval_T *argvars, typval_T *rettv);
-static void f_shiftwidth(typval_T *argvars, typval_T *rettv);
-static void f_simplify(typval_T *argvars, typval_T *rettv);
-static void f_sin(typval_T *argvars, typval_T *rettv);
-static void f_sinh(typval_T *argvars, typval_T *rettv);
-static void f_sort(typval_T *argvars, typval_T *rettv);
-static void f_soundfold(typval_T *argvars, typval_T *rettv);
-static void f_spellbadword(typval_T *argvars, typval_T *rettv);
-static void f_spellsuggest(typval_T *argvars, typval_T *rettv);
-static void f_split(typval_T *argvars, typval_T *rettv);
-static void f_sqrt(typval_T *argvars, typval_T *rettv);
-static void f_str2float(typval_T *argvars, typval_T *rettv);
-static void f_str2nr(typval_T *argvars, typval_T *rettv);
-static void f_strchars(typval_T *argvars, typval_T *rettv);
-static void f_strftime(typval_T *argvars, typval_T *rettv);
-static void f_stridx(typval_T *argvars, typval_T *rettv);
-static void f_string(typval_T *argvars, typval_T *rettv);
-static void f_strlen(typval_T *argvars, typval_T *rettv);
-static void f_strpart(typval_T *argvars, typval_T *rettv);
-static void f_strridx(typval_T *argvars, typval_T *rettv);
-static void f_strtrans(typval_T *argvars, typval_T *rettv);
-static void f_strdisplaywidth(typval_T *argvars, typval_T *rettv);
-static void f_strwidth(typval_T *argvars, typval_T *rettv);
-static void f_submatch(typval_T *argvars, typval_T *rettv);
-static void f_substitute(typval_T *argvars, typval_T *rettv);
-static void f_synID(typval_T *argvars, typval_T *rettv);
-static void f_synIDattr(typval_T *argvars, typval_T *rettv);
-static void f_synIDtrans(typval_T *argvars, typval_T *rettv);
-static void f_synstack(typval_T *argvars, typval_T *rettv);
-static void f_synconcealed(typval_T *argvars, typval_T *rettv);
-static void f_system(typval_T *argvars, typval_T *rettv);
-static void f_tabpagebuflist(typval_T *argvars, typval_T *rettv);
-static void f_tabpagenr(typval_T *argvars, typval_T *rettv);
-static void f_tabpagewinnr(typval_T *argvars, typval_T *rettv);
-static void f_taglist(typval_T *argvars, typval_T *rettv);
-static void f_tagfiles(typval_T *argvars, typval_T *rettv);
-static void f_tempname(typval_T *argvars, typval_T *rettv);
-static void f_test(typval_T *argvars, typval_T *rettv);
-static void f_tan(typval_T *argvars, typval_T *rettv);
-static void f_tanh(typval_T *argvars, typval_T *rettv);
-static void f_tolower(typval_T *argvars, typval_T *rettv);
-static void f_toupper(typval_T *argvars, typval_T *rettv);
-static void f_tr(typval_T *argvars, typval_T *rettv);
-static void f_trunc(typval_T *argvars, typval_T *rettv);
-static void f_type(typval_T *argvars, typval_T *rettv);
-static void f_undofile(typval_T *argvars, typval_T *rettv);
-static void f_undotree(typval_T *argvars, typval_T *rettv);
-static void f_uniq(typval_T *argvars, typval_T *rettv);
-static void f_values(typval_T *argvars, typval_T *rettv);
-static void f_virtcol(typval_T *argvars, typval_T *rettv);
-static void f_visualmode(typval_T *argvars, typval_T *rettv);
-static void f_wildmenumode(typval_T *argvars, typval_T *rettv);
-static void f_winbufnr(typval_T *argvars, typval_T *rettv);
-static void f_wincol(typval_T *argvars, typval_T *rettv);
-static void f_winheight(typval_T *argvars, typval_T *rettv);
-static void f_winline(typval_T *argvars, typval_T *rettv);
-static void f_winnr(typval_T *argvars, typval_T *rettv);
-static void f_winrestcmd(typval_T *argvars, typval_T *rettv);
-static void f_winrestview(typval_T *argvars, typval_T *rettv);
-static void f_winsaveview(typval_T *argvars, typval_T *rettv);
-static void f_winwidth(typval_T *argvars, typval_T *rettv);
-static void f_writefile(typval_T *argvars, typval_T *rettv);
-static void f_xor(typval_T *argvars, typval_T *rettv);
-
-static int list2fpos(typval_T *arg, pos_T *posp, int *fnump);
-static pos_T *var2fpos(typval_T *varp, int dollar_lnum, int *fnum);
-static int get_env_len(char_u **arg);
-static int get_id_len(char_u **arg);
-static int get_name_len(char_u **arg, char_u **alias, int evaluate,
- int verbose);
-static char_u *find_name_end(char_u *arg, char_u **expr_start, char_u *
- *expr_end,
- int flags);
-#define FNE_INCL_BR 1 /* find_name_end(): include [] in name */
-#define FNE_CHECK_START 2 /* find_name_end(): check name starts with
- valid character */
-static char_u *
-make_expanded_name(char_u *in_start, char_u *expr_start, char_u *
- expr_end,
- char_u *in_end);
-static int eval_isnamec(int c);
-static int eval_isnamec1(int c);
-static int get_var_tv(char_u *name, int len, typval_T *rettv,
- int verbose,
- int no_autoload);
-static int handle_subscript(char_u **arg, typval_T *rettv, int evaluate,
- int verbose);
-static void init_tv(typval_T *varp);
-static long get_tv_number(typval_T *varp);
-static linenr_T get_tv_lnum(typval_T *argvars);
-static linenr_T get_tv_lnum_buf(typval_T *argvars, buf_T *buf);
-static char_u *get_tv_string(typval_T *varp);
-static char_u *get_tv_string_buf(typval_T *varp, char_u *buf);
-static char_u *get_tv_string_buf_chk(typval_T *varp, char_u *buf);
-static dictitem_T *find_var(char_u *name, hashtab_T **htp,
- int no_autoload);
-static dictitem_T *find_var_in_ht(hashtab_T *ht, int htname,
- char_u *varname,
- int no_autoload);
-static hashtab_T *find_var_ht(char_u *name, char_u **varname);
-static void vars_clear_ext(hashtab_T *ht, int free_val);
-static void delete_var(hashtab_T *ht, hashitem_T *hi);
-static void list_one_var(dictitem_T *v, char_u *prefix, int *first);
-static void list_one_var_a(char_u *prefix, char_u *name, int type,
- char_u *string,
- int *first);
-static void set_var(char_u *name, typval_T *varp, int copy);
-static int var_check_ro(int flags, char_u *name);
-static int var_check_fixed(int flags, char_u *name);
-static int var_check_func_name(char_u *name, int new_var);
-static int valid_varname(char_u *varname);
-static int tv_check_lock(int lock, char_u *name);
-static int item_copy(typval_T *from, typval_T *to, int deep, int copyID);
-static char_u *find_option_end(char_u **arg, int *opt_flags);
-static char_u *trans_function_name(char_u **pp, int skip, int flags,
- funcdict_T *fd);
-static int eval_fname_script(char_u *p);
-static int eval_fname_sid(char_u *p);
-static void list_func_head(ufunc_T *fp, int indent);
-static ufunc_T *find_func(char_u *name);
-static int function_exists(char_u *name);
-static bool builtin_function(char_u *name, int len);
-static void func_do_profile(ufunc_T *fp);
-static void prof_sort_list(FILE *fd, ufunc_T **sorttab, int st_len,
- char *title,
- int prefer_self);
-static void prof_func_line(FILE *fd, int count, proftime_T *total,
- proftime_T *self,
- int prefer_self);
-static int
-prof_total_cmp(const void *s1, const void *s2);
-static int
-prof_self_cmp(const void *s1, const void *s2);
-static int script_autoload(char_u *name, int reload);
-static char_u *autoload_name(char_u *name);
-static void cat_func_name(char_u *buf, ufunc_T *fp);
-static void func_free(ufunc_T *fp);
-static void call_user_func(ufunc_T *fp, int argcount, typval_T *argvars,
- typval_T *rettv, linenr_T firstline,
- linenr_T lastline,
- dict_T *selfdict);
-static int can_free_funccal(funccall_T *fc, int copyID);
-static void free_funccal(funccall_T *fc, int free_val);
-static void add_nr_var(dict_T *dp, dictitem_T *v, char *name,
- varnumber_T nr);
-static win_T *find_win_by_nr(typval_T *vp, tabpage_T *tp);
-static void getwinvar(typval_T *argvars, typval_T *rettv, int off);
-static int searchpair_cmn(typval_T *argvars, pos_T *match_pos);
-static int search_cmn(typval_T *argvars, pos_T *match_pos, int *flagsp);
-static void setwinvar(typval_T *argvars, typval_T *rettv, int off);
-
-
-
-/*
- * Initialize the global and v: variables.
- */
-void eval_init(void)
-{
- int i;
- struct vimvar *p;
-
- init_var_dict(&globvardict, &globvars_var, VAR_DEF_SCOPE);
- init_var_dict(&vimvardict, &vimvars_var, VAR_SCOPE);
- vimvardict.dv_lock = VAR_FIXED;
- hash_init(&compat_hashtab);
- hash_init(&func_hashtab);
-
- for (i = 0; i < VV_LEN; ++i) {
- p = &vimvars[i];
- STRCPY(p->vv_di.di_key, p->vv_name);
- if (p->vv_flags & VV_RO)
- p->vv_di.di_flags = DI_FLAGS_RO | DI_FLAGS_FIX;
- else if (p->vv_flags & VV_RO_SBX)
- p->vv_di.di_flags = DI_FLAGS_RO_SBX | DI_FLAGS_FIX;
- else
- p->vv_di.di_flags = DI_FLAGS_FIX;
-
- /* add to v: scope dict, unless the value is not always available */
- if (p->vv_type != VAR_UNKNOWN)
- hash_add(&vimvarht, p->vv_di.di_key);
- if (p->vv_flags & VV_COMPAT)
- /* add to compat scope dict */
- hash_add(&compat_hashtab, p->vv_di.di_key);
- }
- set_vim_var_nr(VV_SEARCHFORWARD, 1L);
- set_vim_var_nr(VV_HLSEARCH, 1L);
- set_reg_var(0); /* default for v:register is not 0 but '"' */
-
-}
-
-#if defined(EXITFREE) || defined(PROTO)
-void eval_clear(void)
-{
- int i;
- struct vimvar *p;
-
- for (i = 0; i < VV_LEN; ++i) {
- p = &vimvars[i];
- if (p->vv_di.di_tv.v_type == VAR_STRING) {
- free(p->vv_str);
- p->vv_str = NULL;
- } else if (p->vv_di.di_tv.v_type == VAR_LIST) {
- list_unref(p->vv_list);
- p->vv_list = NULL;
- }
- }
- hash_clear(&vimvarht);
- hash_init(&vimvarht); /* garbage_collect() will access it */
- hash_clear(&compat_hashtab);
-
- free_scriptnames();
- free_locales();
-
- /* global variables */
- vars_clear(&globvarht);
-
- /* autoloaded script names */
- ga_clear_strings(&ga_loaded);
-
- /* Script-local variables. First clear all the variables and in a second
- * loop free the scriptvar_T, because a variable in one script might hold
- * a reference to the whole scope of another script. */
- for (i = 1; i <= ga_scripts.ga_len; ++i)
- vars_clear(&SCRIPT_VARS(i));
- for (i = 1; i <= ga_scripts.ga_len; ++i)
- free(SCRIPT_SV(i));
- ga_clear(&ga_scripts);
-
- /* unreferenced lists and dicts */
- (void)garbage_collect();
-
- /* functions */
- free_all_functions();
- hash_clear(&func_hashtab);
-}
-
-#endif
-
-/*
- * Return the name of the executed function.
- */
-char_u *func_name(void *cookie)
-{
- return ((funccall_T *)cookie)->func->uf_name;
-}
-
-/*
- * Return the address holding the next breakpoint line for a funccall cookie.
- */
-linenr_T *func_breakpoint(void *cookie)
-{
- return &((funccall_T *)cookie)->breakpoint;
-}
-
-/*
- * Return the address holding the debug tick for a funccall cookie.
- */
-int *func_dbg_tick(void *cookie)
-{
- return &((funccall_T *)cookie)->dbg_tick;
-}
-
-/*
- * Return the nesting level for a funccall cookie.
- */
-int func_level(void *cookie)
-{
- return ((funccall_T *)cookie)->level;
-}
-
-/* pointer to funccal for currently active function */
-funccall_T *current_funccal = NULL;
-
-/* pointer to list of previously used funccal, still around because some
- * item in it is still being used. */
-funccall_T *previous_funccal = NULL;
-
-/*
- * Return TRUE when a function was ended by a ":return" command.
- */
-int current_func_returned(void)
-{
- return current_funccal->returned;
-}
-
-/*
- * Set an internal variable to a string value. Creates the variable if it does
- * not already exist.
- */
-void set_internal_string_var(char_u *name, char_u *value)
-{
- char_u *val = vim_strsave(value);
- typval_T *tvp = xcalloc(1, sizeof(typval_T));
-
- tvp->v_type = VAR_STRING;
- tvp->vval.v_string = val;
- set_var(name, tvp, FALSE);
- free_tv(tvp);
-}
-
-static lval_T *redir_lval = NULL;
-static garray_T redir_ga; /* only valid when redir_lval is not NULL */
-static char_u *redir_endp = NULL;
-static char_u *redir_varname = NULL;
-
-/*
- * Start recording command output to a variable
- * Returns OK if successfully completed the setup. FAIL otherwise.
- */
-int
-var_redir_start (
- char_u *name,
- int append /* append to an existing variable */
-)
-{
- int save_emsg;
- int err;
- typval_T tv;
-
- /* Catch a bad name early. */
- if (!eval_isnamec1(*name)) {
- EMSG(_(e_invarg));
- return FAIL;
- }
-
- /* Make a copy of the name, it is used in redir_lval until redir ends. */
- redir_varname = vim_strsave(name);
- if (redir_varname == NULL)
- return FAIL;
-
- redir_lval = xcalloc(1, sizeof(lval_T));
-
- /* The output is stored in growarray "redir_ga" until redirection ends. */
- ga_init(&redir_ga, (int)sizeof(char), 500);
-
- /* Parse the variable name (can be a dict or list entry). */
- redir_endp = get_lval(redir_varname, NULL, redir_lval, FALSE, FALSE, 0,
- FNE_CHECK_START);
- if (redir_endp == NULL || redir_lval->ll_name == NULL || *redir_endp !=
- NUL) {
- clear_lval(redir_lval);
- if (redir_endp != NULL && *redir_endp != NUL)
- /* Trailing characters are present after the variable name */
- EMSG(_(e_trailing));
- else
- EMSG(_(e_invarg));
- redir_endp = NULL; /* don't store a value, only cleanup */
- var_redir_stop();
- return FAIL;
- }
-
- /* check if we can write to the variable: set it to or append an empty
- * string */
- save_emsg = did_emsg;
- did_emsg = FALSE;
- tv.v_type = VAR_STRING;
- tv.vval.v_string = (char_u *)"";
- if (append)
- set_var_lval(redir_lval, redir_endp, &tv, TRUE, (char_u *)".");
- else
- set_var_lval(redir_lval, redir_endp, &tv, TRUE, (char_u *)"=");
- clear_lval(redir_lval);
- err = did_emsg;
- did_emsg |= save_emsg;
- if (err) {
- redir_endp = NULL; /* don't store a value, only cleanup */
- var_redir_stop();
- return FAIL;
- }
-
- return OK;
-}
-
-/*
- * Append "value[value_len]" to the variable set by var_redir_start().
- * The actual appending is postponed until redirection ends, because the value
- * appended may in fact be the string we write to, changing it may cause freed
- * memory to be used:
- * :redir => foo
- * :let foo
- * :redir END
- */
-void var_redir_str(char_u *value, int value_len)
-{
- int len;
-
- if (redir_lval == NULL)
- return;
-
- if (value_len == -1)
- len = (int)STRLEN(value); /* Append the entire string */
- else
- len = value_len; /* Append only "value_len" characters */
-
- ga_grow(&redir_ga, len);
- memmove((char *)redir_ga.ga_data + redir_ga.ga_len, value, len);
- redir_ga.ga_len += len;
-}
-
-/*
- * Stop redirecting command output to a variable.
- * Frees the allocated memory.
- */
-void var_redir_stop(void)
-{
- typval_T tv;
-
- if (redir_lval != NULL) {
- /* If there was no error: assign the text to the variable. */
- if (redir_endp != NULL) {
- ga_append(&redir_ga, NUL); /* Append the trailing NUL. */
- tv.v_type = VAR_STRING;
- tv.vval.v_string = redir_ga.ga_data;
- /* Call get_lval() again, if it's inside a Dict or List it may
- * have changed. */
- redir_endp = get_lval(redir_varname, NULL, redir_lval,
- FALSE, FALSE, 0, FNE_CHECK_START);
- if (redir_endp != NULL && redir_lval->ll_name != NULL)
- set_var_lval(redir_lval, redir_endp, &tv, FALSE, (char_u *)".");
- clear_lval(redir_lval);
- }
-
- /* free the collected output */
- free(redir_ga.ga_data);
- redir_ga.ga_data = NULL;
-
- free(redir_lval);
- redir_lval = NULL;
- }
- free(redir_varname);
- redir_varname = NULL;
-}
-
-int eval_charconvert(char_u *enc_from, char_u *enc_to, char_u *fname_from, char_u *fname_to)
-{
- int err = FALSE;
-
- set_vim_var_string(VV_CC_FROM, enc_from, -1);
- set_vim_var_string(VV_CC_TO, enc_to, -1);
- set_vim_var_string(VV_FNAME_IN, fname_from, -1);
- set_vim_var_string(VV_FNAME_OUT, fname_to, -1);
- if (eval_to_bool(p_ccv, &err, NULL, FALSE))
- err = TRUE;
- set_vim_var_string(VV_CC_FROM, NULL, -1);
- set_vim_var_string(VV_CC_TO, NULL, -1);
- set_vim_var_string(VV_FNAME_IN, NULL, -1);
- set_vim_var_string(VV_FNAME_OUT, NULL, -1);
-
- if (err)
- return FAIL;
- return OK;
-}
-
-int eval_printexpr(char_u *fname, char_u *args)
-{
- int err = FALSE;
-
- set_vim_var_string(VV_FNAME_IN, fname, -1);
- set_vim_var_string(VV_CMDARG, args, -1);
- if (eval_to_bool(p_pexpr, &err, NULL, FALSE))
- err = TRUE;
- set_vim_var_string(VV_FNAME_IN, NULL, -1);
- set_vim_var_string(VV_CMDARG, NULL, -1);
-
- if (err) {
- os_remove((char *)fname);
- return FAIL;
- }
- return OK;
-}
-
-void eval_diff(char_u *origfile, char_u *newfile, char_u *outfile)
-{
- int err = FALSE;
-
- set_vim_var_string(VV_FNAME_IN, origfile, -1);
- set_vim_var_string(VV_FNAME_NEW, newfile, -1);
- set_vim_var_string(VV_FNAME_OUT, outfile, -1);
- (void)eval_to_bool(p_dex, &err, NULL, FALSE);
- set_vim_var_string(VV_FNAME_IN, NULL, -1);
- set_vim_var_string(VV_FNAME_NEW, NULL, -1);
- set_vim_var_string(VV_FNAME_OUT, NULL, -1);
-}
-
-void eval_patch(char_u *origfile, char_u *difffile, char_u *outfile)
-{
- int err;
-
- set_vim_var_string(VV_FNAME_IN, origfile, -1);
- set_vim_var_string(VV_FNAME_DIFF, difffile, -1);
- set_vim_var_string(VV_FNAME_OUT, outfile, -1);
- (void)eval_to_bool(p_pex, &err, NULL, FALSE);
- set_vim_var_string(VV_FNAME_IN, NULL, -1);
- set_vim_var_string(VV_FNAME_DIFF, NULL, -1);
- set_vim_var_string(VV_FNAME_OUT, NULL, -1);
-}
-
-/*
- * Top level evaluation function, returning a boolean.
- * Sets "error" to TRUE if there was an error.
- * Return TRUE or FALSE.
- */
-int
-eval_to_bool (
- char_u *arg,
- int *error,
- char_u **nextcmd,
- int skip /* only parse, don't execute */
-)
-{
- typval_T tv;
- int retval = FALSE;
-
- if (skip)
- ++emsg_skip;
- if (eval0(arg, &tv, nextcmd, !skip) == FAIL)
- *error = TRUE;
- else {
- *error = FALSE;
- if (!skip) {
- retval = (get_tv_number_chk(&tv, error) != 0);
- clear_tv(&tv);
- }
- }
- if (skip)
- --emsg_skip;
-
- return retval;
-}
-
-/*
- * Top level evaluation function, returning a string. If "skip" is TRUE,
- * only parsing to "nextcmd" is done, without reporting errors. Return
- * pointer to allocated memory, or NULL for failure or when "skip" is TRUE.
- */
-char_u *
-eval_to_string_skip (
- char_u *arg,
- char_u **nextcmd,
- int skip /* only parse, don't execute */
-)
-{
- typval_T tv;
- char_u *retval;
-
- if (skip)
- ++emsg_skip;
- if (eval0(arg, &tv, nextcmd, !skip) == FAIL || skip)
- retval = NULL;
- else {
- retval = vim_strsave(get_tv_string(&tv));
- clear_tv(&tv);
- }
- if (skip)
- --emsg_skip;
-
- return retval;
-}
-
-/*
- * Skip over an expression at "*pp".
- * Return FAIL for an error, OK otherwise.
- */
-int skip_expr(char_u **pp)
-{
- typval_T rettv;
-
- *pp = skipwhite(*pp);
- return eval1(pp, &rettv, FALSE);
-}
-
-/*
- * Top level evaluation function, returning a string.
- * When "convert" is TRUE convert a List into a sequence of lines and convert
- * a Float to a String.
- * Return pointer to allocated memory, or NULL for failure.
- */
-char_u *eval_to_string(char_u *arg, char_u **nextcmd, int convert)
-{
- typval_T tv;
- char_u *retval;
- garray_T ga;
- char_u numbuf[NUMBUFLEN];
-
- if (eval0(arg, &tv, nextcmd, TRUE) == FAIL)
- retval = NULL;
- else {
- if (convert && tv.v_type == VAR_LIST) {
- ga_init(&ga, (int)sizeof(char), 80);
- if (tv.vval.v_list != NULL) {
- list_join(&ga, tv.vval.v_list, (char_u *)"\n", TRUE, 0);
- if (tv.vval.v_list->lv_len > 0)
- ga_append(&ga, NL);
- }
- ga_append(&ga, NUL);
- retval = (char_u *)ga.ga_data;
- } else if (convert && tv.v_type == VAR_FLOAT) {
- vim_snprintf((char *)numbuf, NUMBUFLEN, "%g", tv.vval.v_float);
- retval = vim_strsave(numbuf);
- } else
- retval = vim_strsave(get_tv_string(&tv));
- clear_tv(&tv);
- }
-
- return retval;
-}
-
-/*
- * Call eval_to_string() without using current local variables and using
- * textlock. When "use_sandbox" is TRUE use the sandbox.
- */
-char_u *eval_to_string_safe(char_u *arg, char_u **nextcmd, int use_sandbox)
-{
- char_u *retval;
- void *save_funccalp;
-
- save_funccalp = save_funccal();
- if (use_sandbox)
- ++sandbox;
- ++textlock;
- retval = eval_to_string(arg, nextcmd, FALSE);
- if (use_sandbox)
- --sandbox;
- --textlock;
- restore_funccal(save_funccalp);
- return retval;
-}
-
-/*
- * Top level evaluation function, returning a number.
- * Evaluates "expr" silently.
- * Returns -1 for an error.
- */
-int eval_to_number(char_u *expr)
-{
- typval_T rettv;
- int retval;
- char_u *p = skipwhite(expr);
-
- ++emsg_off;
-
- if (eval1(&p, &rettv, TRUE) == FAIL)
- retval = -1;
- else {
- retval = get_tv_number_chk(&rettv, NULL);
- clear_tv(&rettv);
- }
- --emsg_off;
-
- return retval;
-}
-
-
-/*
- * Prepare v: variable "idx" to be used.
- * Save the current typeval in "save_tv".
- * When not used yet add the variable to the v: hashtable.
- */
-static void prepare_vimvar(int idx, typval_T *save_tv)
-{
- *save_tv = vimvars[idx].vv_tv;
- if (vimvars[idx].vv_type == VAR_UNKNOWN)
- hash_add(&vimvarht, vimvars[idx].vv_di.di_key);
-}
-
-/*
- * Restore v: variable "idx" to typeval "save_tv".
- * When no longer defined, remove the variable from the v: hashtable.
- */
-static void restore_vimvar(int idx, typval_T *save_tv)
-{
- hashitem_T *hi;
-
- vimvars[idx].vv_tv = *save_tv;
- if (vimvars[idx].vv_type == VAR_UNKNOWN) {
- hi = hash_find(&vimvarht, vimvars[idx].vv_di.di_key);
- if (HASHITEM_EMPTY(hi))
- EMSG2(_(e_intern2), "restore_vimvar()");
- else
- hash_remove(&vimvarht, hi);
- }
-}
-
-/*
- * Evaluate an expression to a list with suggestions.
- * For the "expr:" part of 'spellsuggest'.
- * Returns NULL when there is an error.
- */
-list_T *eval_spell_expr(char_u *badword, char_u *expr)
-{
- typval_T save_val;
- typval_T rettv;
- list_T *list = NULL;
- char_u *p = skipwhite(expr);
-
- /* Set "v:val" to the bad word. */
- prepare_vimvar(VV_VAL, &save_val);
- vimvars[VV_VAL].vv_type = VAR_STRING;
- vimvars[VV_VAL].vv_str = badword;
- if (p_verbose == 0)
- ++emsg_off;
-
- if (eval1(&p, &rettv, TRUE) == OK) {
- if (rettv.v_type != VAR_LIST)
- clear_tv(&rettv);
- else
- list = rettv.vval.v_list;
- }
-
- if (p_verbose == 0)
- --emsg_off;
- restore_vimvar(VV_VAL, &save_val);
-
- return list;
-}
-
-/*
- * "list" is supposed to contain two items: a word and a number. Return the
- * word in "pp" and the number as the return value.
- * Return -1 if anything isn't right.
- * Used to get the good word and score from the eval_spell_expr() result.
- */
-int get_spellword(list_T *list, char_u **pp)
-{
- listitem_T *li;
-
- li = list->lv_first;
- if (li == NULL)
- return -1;
- *pp = get_tv_string(&li->li_tv);
-
- li = li->li_next;
- if (li == NULL)
- return -1;
- return get_tv_number(&li->li_tv);
-}
-
-/*
- * Top level evaluation function.
- * Returns an allocated typval_T with the result.
- * Returns NULL when there is an error.
- */
-typval_T *eval_expr(char_u *arg, char_u **nextcmd)
-{
- typval_T *tv;
-
- tv = (typval_T *)alloc(sizeof(typval_T));
- if (tv != NULL && eval0(arg, tv, nextcmd, TRUE) == FAIL) {
- free(tv);
- tv = NULL;
- }
-
- return tv;
-}
-
-
-/*
- * Call some vimL function and return the result in "*rettv".
- * Uses argv[argc] for the function arguments. Only Number and String
- * arguments are currently supported.
- * Returns OK or FAIL.
- */
-int
-call_vim_function (
- char_u *func,
- int argc,
- char_u **argv,
- int safe, /* use the sandbox */
- int str_arg_only, /* all arguments are strings */
- typval_T *rettv
-)
-{
- typval_T *argvars;
- long n;
- int len;
- int i;
- int doesrange;
- void *save_funccalp = NULL;
- int ret;
-
- argvars = (typval_T *)alloc((unsigned)((argc + 1) * sizeof(typval_T)));
- if (argvars == NULL)
- return FAIL;
-
- for (i = 0; i < argc; i++) {
- /* Pass a NULL or empty argument as an empty string */
- if (argv[i] == NULL || *argv[i] == NUL) {
- argvars[i].v_type = VAR_STRING;
- argvars[i].vval.v_string = (char_u *)"";
- continue;
- }
-
- if (str_arg_only)
- len = 0;
- else
- /* Recognize a number argument, the others must be strings. */
- vim_str2nr(argv[i], NULL, &len, TRUE, TRUE, &n, NULL);
- if (len != 0 && len == (int)STRLEN(argv[i])) {
- argvars[i].v_type = VAR_NUMBER;
- argvars[i].vval.v_number = n;
- } else {
- argvars[i].v_type = VAR_STRING;
- argvars[i].vval.v_string = argv[i];
- }
- }
-
- if (safe) {
- save_funccalp = save_funccal();
- ++sandbox;
- }
-
- rettv->v_type = VAR_UNKNOWN; /* clear_tv() uses this */
- ret = call_func(func, (int)STRLEN(func), rettv, argc, argvars,
- curwin->w_cursor.lnum, curwin->w_cursor.lnum,
- &doesrange, TRUE, NULL);
- if (safe) {
- --sandbox;
- restore_funccal(save_funccalp);
- }
- free(argvars);
-
- if (ret == FAIL)
- clear_tv(rettv);
-
- return ret;
-}
-
-/*
- * Call vimL function "func" and return the result as a number.
- * Returns -1 when calling the function fails.
- * Uses argv[argc] for the function arguments.
- */
-long
-call_func_retnr (
- char_u *func,
- int argc,
- char_u **argv,
- int safe /* use the sandbox */
-)
-{
- typval_T rettv;
- long retval;
-
- /* All arguments are passed as strings, no conversion to number. */
- if (call_vim_function(func, argc, argv, safe, TRUE, &rettv) == FAIL)
- return -1;
-
- retval = get_tv_number_chk(&rettv, NULL);
- clear_tv(&rettv);
- return retval;
-}
-
-#if (defined(FEAT_USR_CMDS) && defined(FEAT_CMDL_COMPL)) \
- || defined(FEAT_COMPL_FUNC) || defined(PROTO)
-
-/*
- * Call vimL function "func" and return the result as a string.
- * Returns NULL when calling the function fails.
- * Uses argv[argc] for the function arguments.
- */
-void *
-call_func_retstr (
- char_u *func,
- int argc,
- char_u **argv,
- int safe /* use the sandbox */
-)
-{
- typval_T rettv;
- char_u *retval;
-
- /* All arguments are passed as strings, no conversion to number. */
- if (call_vim_function(func, argc, argv, safe, TRUE, &rettv) == FAIL)
- return NULL;
-
- retval = vim_strsave(get_tv_string(&rettv));
- clear_tv(&rettv);
- return retval;
-}
-
-/*
- * Call vimL function "func" and return the result as a List.
- * Uses argv[argc] for the function arguments.
- * Returns NULL when there is something wrong.
- */
-void *
-call_func_retlist (
- char_u *func,
- int argc,
- char_u **argv,
- int safe /* use the sandbox */
-)
-{
- typval_T rettv;
-
- /* All arguments are passed as strings, no conversion to number. */
- if (call_vim_function(func, argc, argv, safe, TRUE, &rettv) == FAIL)
- return NULL;
-
- if (rettv.v_type != VAR_LIST) {
- clear_tv(&rettv);
- return NULL;
- }
-
- return rettv.vval.v_list;
-}
-#endif
-
-/*
- * Save the current function call pointer, and set it to NULL.
- * Used when executing autocommands and for ":source".
- */
-void *save_funccal(void)
-{
- funccall_T *fc = current_funccal;
-
- current_funccal = NULL;
- return (void *)fc;
-}
-
-void restore_funccal(void *vfc)
-{
- funccall_T *fc = (funccall_T *)vfc;
-
- current_funccal = fc;
-}
-
-/*
- * Prepare profiling for entering a child or something else that is not
- * counted for the script/function itself.
- * Should always be called in pair with prof_child_exit().
- */
-void prof_child_enter(tm)
-proftime_T *tm; /* place to store waittime */
-{
- funccall_T *fc = current_funccal;
-
- if (fc != NULL && fc->func->uf_profiling)
- profile_start(&fc->prof_child);
- script_prof_save(tm);
-}
-
-/*
- * Take care of time spent in a child.
- * Should always be called after prof_child_enter().
- */
-void prof_child_exit(tm)
-proftime_T *tm; /* where waittime was stored */
-{
- funccall_T *fc = current_funccal;
-
- if (fc != NULL && fc->func->uf_profiling) {
- profile_end(&fc->prof_child);
- profile_sub_wait(tm, &fc->prof_child); /* don't count waiting time */
- profile_add(&fc->func->uf_tm_children, &fc->prof_child);
- profile_add(&fc->func->uf_tml_children, &fc->prof_child);
- }
- script_prof_restore(tm);
-}
-
-
-/*
- * Evaluate 'foldexpr'. Returns the foldlevel, and any character preceding
- * it in "*cp". Doesn't give error messages.
- */
-int eval_foldexpr(char_u *arg, int *cp)
-{
- typval_T tv;
- int retval;
- char_u *s;
- int use_sandbox = was_set_insecurely((char_u *)"foldexpr",
- OPT_LOCAL);
-
- ++emsg_off;
- if (use_sandbox)
- ++sandbox;
- ++textlock;
- *cp = NUL;
- if (eval0(arg, &tv, NULL, TRUE) == FAIL)
- retval = 0;
- else {
- /* If the result is a number, just return the number. */
- if (tv.v_type == VAR_NUMBER)
- retval = tv.vval.v_number;
- else if (tv.v_type != VAR_STRING || tv.vval.v_string == NULL)
- retval = 0;
- else {
- /* If the result is a string, check if there is a non-digit before
- * the number. */
- s = tv.vval.v_string;
- if (!VIM_ISDIGIT(*s) && *s != '-')
- *cp = *s++;
- retval = atol((char *)s);
- }
- clear_tv(&tv);
- }
- --emsg_off;
- if (use_sandbox)
- --sandbox;
- --textlock;
-
- return retval;
-}
-
-/*
- * ":let" list all variable values
- * ":let var1 var2" list variable values
- * ":let var = expr" assignment command.
- * ":let var += expr" assignment command.
- * ":let var -= expr" assignment command.
- * ":let var .= expr" assignment command.
- * ":let [var1, var2] = expr" unpack list.
- */
-void ex_let(exarg_T *eap)
-{
- char_u *arg = eap->arg;
- char_u *expr = NULL;
- typval_T rettv;
- int i;
- int var_count = 0;
- int semicolon = 0;
- char_u op[2];
- char_u *argend;
- int first = TRUE;
-
- argend = skip_var_list(arg, &var_count, &semicolon);
- if (argend == NULL)
- return;
- if (argend > arg && argend[-1] == '.') /* for var.='str' */
- --argend;
- expr = skipwhite(argend);
- if (*expr != '=' && !(vim_strchr((char_u *)"+-.", *expr) != NULL
- && expr[1] == '=')) {
- // ":let" without "=": list variables
- if (*arg == '[')
- EMSG(_(e_invarg));
- else if (!ends_excmd(*arg))
- /* ":let var1 var2" */
- arg = list_arg_vars(eap, arg, &first);
- else if (!eap->skip) {
- /* ":let" */
- list_glob_vars(&first);
- list_buf_vars(&first);
- list_win_vars(&first);
- list_tab_vars(&first);
- list_script_vars(&first);
- list_func_vars(&first);
- list_vim_vars(&first);
- }
- eap->nextcmd = check_nextcmd(arg);
- } else {
- op[0] = '=';
- op[1] = NUL;
- if (*expr != '=') {
- if (vim_strchr((char_u *)"+-.", *expr) != NULL) {
- op[0] = *expr; // +=, -=, .=
- }
- expr = skipwhite(expr + 2);
- } else {
- expr = skipwhite(expr + 1);
- }
-
- if (eap->skip)
- ++emsg_skip;
- i = eval0(expr, &rettv, &eap->nextcmd, !eap->skip);
- if (eap->skip) {
- if (i != FAIL)
- clear_tv(&rettv);
- --emsg_skip;
- } else if (i != FAIL) {
- (void)ex_let_vars(eap->arg, &rettv, FALSE, semicolon, var_count,
- op);
- clear_tv(&rettv);
- }
- }
-}
-
-/*
- * Assign the typevalue "tv" to the variable or variables at "arg_start".
- * Handles both "var" with any type and "[var, var; var]" with a list type.
- * When "nextchars" is not NULL it points to a string with characters that
- * must appear after the variable(s). Use "+", "-" or "." for add, subtract
- * or concatenate.
- * Returns OK or FAIL;
- */
-static int
-ex_let_vars (
- char_u *arg_start,
- typval_T *tv,
- int copy, /* copy values from "tv", don't move */
- int semicolon, /* from skip_var_list() */
- int var_count, /* from skip_var_list() */
- char_u *nextchars
-)
-{
- char_u *arg = arg_start;
- list_T *l;
- int i;
- listitem_T *item;
- typval_T ltv;
-
- if (*arg != '[') {
- /*
- * ":let var = expr" or ":for var in list"
- */
- if (ex_let_one(arg, tv, copy, nextchars, nextchars) == NULL)
- return FAIL;
- return OK;
- }
-
- /*
- * ":let [v1, v2] = list" or ":for [v1, v2] in listlist"
- */
- if (tv->v_type != VAR_LIST || (l = tv->vval.v_list) == NULL) {
- EMSG(_(e_listreq));
- return FAIL;
- }
-
- i = list_len(l);
- if (semicolon == 0 && var_count < i) {
- EMSG(_("E687: Less targets than List items"));
- return FAIL;
- }
- if (var_count - semicolon > i) {
- EMSG(_("E688: More targets than List items"));
- return FAIL;
- }
-
- item = l->lv_first;
- while (*arg != ']') {
- arg = skipwhite(arg + 1);
- arg = ex_let_one(arg, &item->li_tv, TRUE, (char_u *)",;]", nextchars);
- item = item->li_next;
- if (arg == NULL)
- return FAIL;
-
- arg = skipwhite(arg);
- if (*arg == ';') {
- /* Put the rest of the list (may be empty) in the var after ';'.
- * Create a new list for this. */
- l = list_alloc();
- if (l == NULL)
- return FAIL;
- while (item != NULL) {
- list_append_tv(l, &item->li_tv);
- item = item->li_next;
- }
-
- ltv.v_type = VAR_LIST;
- ltv.v_lock = 0;
- ltv.vval.v_list = l;
- l->lv_refcount = 1;
-
- arg = ex_let_one(skipwhite(arg + 1), &ltv, FALSE,
- (char_u *)"]", nextchars);
- clear_tv(&ltv);
- if (arg == NULL)
- return FAIL;
- break;
- } else if (*arg != ',' && *arg != ']') {
- EMSG2(_(e_intern2), "ex_let_vars()");
- return FAIL;
- }
- }
-
- return OK;
-}
-
-/*
- * Skip over assignable variable "var" or list of variables "[var, var]".
- * Used for ":let varvar = expr" and ":for varvar in expr".
- * For "[var, var]" increment "*var_count" for each variable.
- * for "[var, var; var]" set "semicolon".
- * Return NULL for an error.
- */
-static char_u *skip_var_list(char_u *arg, int *var_count, int *semicolon)
-{
- char_u *p, *s;
-
- if (*arg == '[') {
- /* "[var, var]": find the matching ']'. */
- p = arg;
- for (;; ) {
- p = skipwhite(p + 1); /* skip whites after '[', ';' or ',' */
- s = skip_var_one(p);
- if (s == p) {
- EMSG2(_(e_invarg2), p);
- return NULL;
- }
- ++*var_count;
-
- p = skipwhite(s);
- if (*p == ']')
- break;
- else if (*p == ';') {
- if (*semicolon == 1) {
- EMSG(_("Double ; in list of variables"));
- return NULL;
- }
- *semicolon = 1;
- } else if (*p != ',') {
- EMSG2(_(e_invarg2), p);
- return NULL;
- }
- }
- return p + 1;
- } else
- return skip_var_one(arg);
-}
-
-/*
- * Skip one (assignable) variable name, including @r, $VAR, &option, d.key,
- * l[idx].
- */
-static char_u *skip_var_one(char_u *arg)
-{
- if (*arg == '@' && arg[1] != NUL)
- return arg + 2;
- return find_name_end(*arg == '$' || *arg == '&' ? arg + 1 : arg,
- NULL, NULL, FNE_INCL_BR | FNE_CHECK_START);
-}
-
-/*
- * List variables for hashtab "ht" with prefix "prefix".
- * If "empty" is TRUE also list NULL strings as empty strings.
- */
-static void list_hashtable_vars(hashtab_T *ht, char_u *prefix, int empty, int *first)
-{
- hashitem_T *hi;
- dictitem_T *di;
- int todo;
-
- todo = (int)ht->ht_used;
- for (hi = ht->ht_array; todo > 0 && !got_int; ++hi) {
- if (!HASHITEM_EMPTY(hi)) {
- --todo;
- di = HI2DI(hi);
- if (empty || di->di_tv.v_type != VAR_STRING
- || di->di_tv.vval.v_string != NULL)
- list_one_var(di, prefix, first);
- }
- }
-}
-
-/*
- * List global variables.
- */
-static void list_glob_vars(int *first)
-{
- list_hashtable_vars(&globvarht, (char_u *)"", TRUE, first);
-}
-
-/*
- * List buffer variables.
- */
-static void list_buf_vars(int *first)
-{
- char_u numbuf[NUMBUFLEN];
-
- list_hashtable_vars(&curbuf->b_vars->dv_hashtab, (char_u *)"b:",
- TRUE, first);
-
- sprintf((char *)numbuf, "%" PRId64, (int64_t)curbuf->b_changedtick);
- list_one_var_a((char_u *)"b:", (char_u *)"changedtick", VAR_NUMBER,
- numbuf, first);
-}
-
-/*
- * List window variables.
- */
-static void list_win_vars(int *first)
-{
- list_hashtable_vars(&curwin->w_vars->dv_hashtab,
- (char_u *)"w:", TRUE, first);
-}
-
-/*
- * List tab page variables.
- */
-static void list_tab_vars(int *first)
-{
- list_hashtable_vars(&curtab->tp_vars->dv_hashtab,
- (char_u *)"t:", TRUE, first);
-}
-
-/*
- * List Vim variables.
- */
-static void list_vim_vars(int *first)
-{
- list_hashtable_vars(&vimvarht, (char_u *)"v:", FALSE, first);
-}
-
-/*
- * List script-local variables, if there is a script.
- */
-static void list_script_vars(int *first)
-{
- if (current_SID > 0 && current_SID <= ga_scripts.ga_len)
- list_hashtable_vars(&SCRIPT_VARS(current_SID),
- (char_u *)"s:", FALSE, first);
-}
-
-/*
- * List function variables, if there is a function.
- */
-static void list_func_vars(int *first)
-{
- if (current_funccal != NULL)
- list_hashtable_vars(&current_funccal->l_vars.dv_hashtab,
- (char_u *)"l:", FALSE, first);
-}
-
-/*
- * List variables in "arg".
- */
-static char_u *list_arg_vars(exarg_T *eap, char_u *arg, int *first)
-{
- int error = FALSE;
- int len;
- char_u *name;
- char_u *name_start;
- char_u *arg_subsc;
- char_u *tofree;
- typval_T tv;
-
- while (!ends_excmd(*arg) && !got_int) {
- if (error || eap->skip) {
- arg = find_name_end(arg, NULL, NULL, FNE_INCL_BR | FNE_CHECK_START);
- if (!vim_iswhite(*arg) && !ends_excmd(*arg)) {
- emsg_severe = TRUE;
- EMSG(_(e_trailing));
- break;
- }
- } else {
- /* get_name_len() takes care of expanding curly braces */
- name_start = name = arg;
- len = get_name_len(&arg, &tofree, TRUE, TRUE);
- if (len <= 0) {
- /* This is mainly to keep test 49 working: when expanding
- * curly braces fails overrule the exception error message. */
- if (len < 0 && !aborting()) {
- emsg_severe = TRUE;
- EMSG2(_(e_invarg2), arg);
- break;
- }
- error = TRUE;
- } else {
- if (tofree != NULL)
- name = tofree;
- if (get_var_tv(name, len, &tv, TRUE, FALSE) == FAIL)
- error = TRUE;
- else {
- /* handle d.key, l[idx], f(expr) */
- arg_subsc = arg;
- if (handle_subscript(&arg, &tv, TRUE, TRUE) == FAIL)
- error = TRUE;
- else {
- if (arg == arg_subsc && len == 2 && name[1] == ':') {
- switch (*name) {
- case 'g': list_glob_vars(first); break;
- case 'b': list_buf_vars(first); break;
- case 'w': list_win_vars(first); break;
- case 't': list_tab_vars(first); break;
- case 'v': list_vim_vars(first); break;
- case 's': list_script_vars(first); break;
- case 'l': list_func_vars(first); break;
- default:
- EMSG2(_("E738: Can't list variables for %s"), name);
- }
- } else {
- char_u numbuf[NUMBUFLEN];
- char_u *tf;
- int c;
- char_u *s;
-
- s = echo_string(&tv, &tf, numbuf, 0);
- c = *arg;
- *arg = NUL;
- list_one_var_a((char_u *)"",
- arg == arg_subsc ? name : name_start,
- tv.v_type,
- s == NULL ? (char_u *)"" : s,
- first);
- *arg = c;
- free(tf);
- }
- clear_tv(&tv);
- }
- }
- }
-
- free(tofree);
- }
-
- arg = skipwhite(arg);
- }
-
- return arg;
-}
-
-/*
- * Set one item of ":let var = expr" or ":let [v1, v2] = list" to its value.
- * Returns a pointer to the char just after the var name.
- * Returns NULL if there is an error.
- */
-static char_u *
-ex_let_one (
- char_u *arg, /* points to variable name */
- typval_T *tv, /* value to assign to variable */
- int copy, /* copy value from "tv" */
- char_u *endchars, /* valid chars after variable name or NULL */
- char_u *op /* "+", "-", "." or NULL*/
-)
-{
- int c1;
- char_u *name;
- char_u *p;
- char_u *arg_end = NULL;
- int len;
- int opt_flags;
- char_u *tofree = NULL;
-
- /*
- * ":let $VAR = expr": Set environment variable.
- */
- if (*arg == '$') {
- /* Find the end of the name. */
- ++arg;
- name = arg;
- len = get_env_len(&arg);
- if (len == 0)
- EMSG2(_(e_invarg2), name - 1);
- else {
- if (op != NULL && (*op == '+' || *op == '-'))
- EMSG2(_(e_letwrong), op);
- else if (endchars != NULL
- && vim_strchr(endchars, *skipwhite(arg)) == NULL)
- EMSG(_(e_letunexp));
- else if (!check_secure()) {
- c1 = name[len];
- name[len] = NUL;
- p = get_tv_string_chk(tv);
- if (p != NULL && op != NULL && *op == '.') {
- int mustfree = FALSE;
- char_u *s = vim_getenv(name, &mustfree);
-
- if (s != NULL) {
- p = tofree = concat_str(s, p);
- if (mustfree)
- free(s);
- }
- }
- if (p != NULL) {
- vim_setenv(name, p);
- if (STRICMP(name, "HOME") == 0)
- init_homedir();
- else if (didset_vim && STRICMP(name, "VIM") == 0)
- didset_vim = FALSE;
- else if (didset_vimruntime
- && STRICMP(name, "VIMRUNTIME") == 0)
- didset_vimruntime = FALSE;
- arg_end = arg;
- }
- name[len] = c1;
- free(tofree);
- }
- }
- }
- /*
- * ":let &option = expr": Set option value.
- * ":let &l:option = expr": Set local option value.
- * ":let &g:option = expr": Set global option value.
- */
- else if (*arg == '&') {
- /* Find the end of the name. */
- p = find_option_end(&arg, &opt_flags);
- if (p == NULL || (endchars != NULL
- && vim_strchr(endchars, *skipwhite(p)) == NULL))
- EMSG(_(e_letunexp));
- else {
- long n;
- int opt_type;
- long numval;
- char_u *stringval = NULL;
- char_u *s;
-
- c1 = *p;
- *p = NUL;
-
- n = get_tv_number(tv);
- s = get_tv_string_chk(tv); /* != NULL if number or string */
- if (s != NULL && op != NULL && *op != '=') {
- opt_type = get_option_value(arg, &numval,
- &stringval, opt_flags);
- if ((opt_type == 1 && *op == '.')
- || (opt_type == 0 && *op != '.'))
- EMSG2(_(e_letwrong), op);
- else {
- if (opt_type == 1) { /* number */
- if (*op == '+')
- n = numval + n;
- else
- n = numval - n;
- } else if (opt_type == 0 && stringval != NULL) { /* string */
- s = concat_str(stringval, s);
- free(stringval);
- stringval = s;
- }
- }
- }
- if (s != NULL) {
- set_option_value(arg, n, s, opt_flags);
- arg_end = p;
- }
- *p = c1;
- free(stringval);
- }
- }
- /*
- * ":let @r = expr": Set register contents.
- */
- else if (*arg == '@') {
- ++arg;
- if (op != NULL && (*op == '+' || *op == '-'))
- EMSG2(_(e_letwrong), op);
- else if (endchars != NULL
- && vim_strchr(endchars, *skipwhite(arg + 1)) == NULL)
- EMSG(_(e_letunexp));
- else {
- char_u *ptofree = NULL;
- char_u *s;
-
- p = get_tv_string_chk(tv);
- if (p != NULL && op != NULL && *op == '.') {
- s = get_reg_contents(*arg == '@' ? '"' : *arg, TRUE, TRUE);
- if (s != NULL) {
- p = ptofree = concat_str(s, p);
- free(s);
- }
- }
- if (p != NULL) {
- write_reg_contents(*arg == '@' ? '"' : *arg, p, -1, FALSE);
- arg_end = arg + 1;
- }
- free(ptofree);
- }
- }
- /*
- * ":let var = expr": Set internal variable.
- * ":let {expr} = expr": Idem, name made with curly braces
- */
- else if (eval_isnamec1(*arg) || *arg == '{') {
- lval_T lv;
-
- p = get_lval(arg, tv, &lv, FALSE, FALSE, 0, FNE_CHECK_START);
- if (p != NULL && lv.ll_name != NULL) {
- if (endchars != NULL && vim_strchr(endchars, *skipwhite(p)) == NULL)
- EMSG(_(e_letunexp));
- else {
- set_var_lval(&lv, p, tv, copy, op);
- arg_end = p;
- }
- }
- clear_lval(&lv);
- } else
- EMSG2(_(e_invarg2), arg);
-
- return arg_end;
-}
-
-/*
- * If "arg" is equal to "b:changedtick" give an error and return TRUE.
- */
-static int check_changedtick(char_u *arg)
-{
- if (STRNCMP(arg, "b:changedtick", 13) == 0 && !eval_isnamec(arg[13])) {
- EMSG2(_(e_readonlyvar), arg);
- return TRUE;
- }
- return FALSE;
-}
-
-/*
- * Get an lval: variable, Dict item or List item that can be assigned a value
- * to: "name", "na{me}", "name[expr]", "name[expr:expr]", "name[expr][expr]",
- * "name.key", "name.key[expr]" etc.
- * Indexing only works if "name" is an existing List or Dictionary.
- * "name" points to the start of the name.
- * If "rettv" is not NULL it points to the value to be assigned.
- * "unlet" is TRUE for ":unlet": slightly different behavior when something is
- * wrong; must end in space or cmd separator.
- *
- * flags:
- * GLV_QUIET: do not give error messages
- * GLV_NO_AUTOLOAD: do not use script autoloading
- *
- * Returns a pointer to just after the name, including indexes.
- * When an evaluation error occurs "lp->ll_name" is NULL;
- * Returns NULL for a parsing error. Still need to free items in "lp"!
- */
-static char_u *
-get_lval (
- char_u *name,
- typval_T *rettv,
- lval_T *lp,
- int unlet,
- int skip,
- int flags, /* GLV_ values */
- int fne_flags /* flags for find_name_end() */
-)
-{
- char_u *p;
- char_u *expr_start, *expr_end;
- int cc;
- dictitem_T *v;
- typval_T var1;
- typval_T var2;
- int empty1 = FALSE;
- listitem_T *ni;
- char_u *key = NULL;
- int len;
- hashtab_T *ht;
- int quiet = flags & GLV_QUIET;
-
- /* Clear everything in "lp". */
- memset(lp, 0, sizeof(lval_T));
-
- if (skip) {
- /* When skipping just find the end of the name. */
- lp->ll_name = name;
- return find_name_end(name, NULL, NULL, FNE_INCL_BR | fne_flags);
- }
-
- /* Find the end of the name. */
- p = find_name_end(name, &expr_start, &expr_end, fne_flags);
- if (expr_start != NULL) {
- /* Don't expand the name when we already know there is an error. */
- if (unlet && !vim_iswhite(*p) && !ends_excmd(*p)
- && *p != '[' && *p != '.') {
- EMSG(_(e_trailing));
- return NULL;
- }
-
- lp->ll_exp_name = make_expanded_name(name, expr_start, expr_end, p);
- if (lp->ll_exp_name == NULL) {
- /* Report an invalid expression in braces, unless the
- * expression evaluation has been cancelled due to an
- * aborting error, an interrupt, or an exception. */
- if (!aborting() && !quiet) {
- emsg_severe = TRUE;
- EMSG2(_(e_invarg2), name);
- return NULL;
- }
- }
- lp->ll_name = lp->ll_exp_name;
- } else
- lp->ll_name = name;
-
- /* Without [idx] or .key we are done. */
- if ((*p != '[' && *p != '.') || lp->ll_name == NULL)
- return p;
-
- cc = *p;
- *p = NUL;
- v = find_var(lp->ll_name, &ht, flags & GLV_NO_AUTOLOAD);
- if (v == NULL && !quiet)
- EMSG2(_(e_undefvar), lp->ll_name);
- *p = cc;
- if (v == NULL)
- return NULL;
-
- /*
- * Loop until no more [idx] or .key is following.
- */
- lp->ll_tv = &v->di_tv;
- while (*p == '[' || (*p == '.' && lp->ll_tv->v_type == VAR_DICT)) {
- if (!(lp->ll_tv->v_type == VAR_LIST && lp->ll_tv->vval.v_list != NULL)
- && !(lp->ll_tv->v_type == VAR_DICT
- && lp->ll_tv->vval.v_dict != NULL)) {
- if (!quiet)
- EMSG(_("E689: Can only index a List or Dictionary"));
- return NULL;
- }
- if (lp->ll_range) {
- if (!quiet)
- EMSG(_("E708: [:] must come last"));
- return NULL;
- }
-
- len = -1;
- if (*p == '.') {
- key = p + 1;
- for (len = 0; ASCII_ISALNUM(key[len]) || key[len] == '_'; ++len)
- ;
- if (len == 0) {
- if (!quiet)
- EMSG(_(e_emptykey));
- return NULL;
- }
- p = key + len;
- } else {
- /* Get the index [expr] or the first index [expr: ]. */
- p = skipwhite(p + 1);
- if (*p == ':')
- empty1 = TRUE;
- else {
- empty1 = FALSE;
- if (eval1(&p, &var1, TRUE) == FAIL) /* recursive! */
- return NULL;
- if (get_tv_string_chk(&var1) == NULL) {
- /* not a number or string */
- clear_tv(&var1);
- return NULL;
- }
- }
-
- /* Optionally get the second index [ :expr]. */
- if (*p == ':') {
- if (lp->ll_tv->v_type == VAR_DICT) {
- if (!quiet)
- EMSG(_(e_dictrange));
- if (!empty1)
- clear_tv(&var1);
- return NULL;
- }
- if (rettv != NULL && (rettv->v_type != VAR_LIST
- || rettv->vval.v_list == NULL)) {
- if (!quiet)
- EMSG(_("E709: [:] requires a List value"));
- if (!empty1)
- clear_tv(&var1);
- return NULL;
- }
- p = skipwhite(p + 1);
- if (*p == ']')
- lp->ll_empty2 = TRUE;
- else {
- lp->ll_empty2 = FALSE;
- if (eval1(&p, &var2, TRUE) == FAIL) { /* recursive! */
- if (!empty1)
- clear_tv(&var1);
- return NULL;
- }
- if (get_tv_string_chk(&var2) == NULL) {
- /* not a number or string */
- if (!empty1)
- clear_tv(&var1);
- clear_tv(&var2);
- return NULL;
- }
- }
- lp->ll_range = TRUE;
- } else
- lp->ll_range = FALSE;
-
- if (*p != ']') {
- if (!quiet)
- EMSG(_(e_missbrac));
- if (!empty1)
- clear_tv(&var1);
- if (lp->ll_range && !lp->ll_empty2)
- clear_tv(&var2);
- return NULL;
- }
-
- /* Skip to past ']'. */
- ++p;
- }
-
- if (lp->ll_tv->v_type == VAR_DICT) {
- if (len == -1) {
- /* "[key]": get key from "var1" */
- key = get_tv_string(&var1); /* is number or string */
- if (*key == NUL) {
- if (!quiet)
- EMSG(_(e_emptykey));
- clear_tv(&var1);
- return NULL;
- }
- }
- lp->ll_list = NULL;
- lp->ll_dict = lp->ll_tv->vval.v_dict;
- lp->ll_di = dict_find(lp->ll_dict, key, len);
-
- /* When assigning to a scope dictionary check that a function and
- * variable name is valid (only variable name unless it is l: or
- * g: dictionary). Disallow overwriting a builtin function. */
- if (rettv != NULL && lp->ll_dict->dv_scope != 0) {
- int prevval;
- int wrong;
-
- if (len != -1) {
- prevval = key[len];
- key[len] = NUL;
- } else
- prevval = 0; /* avoid compiler warning */
- wrong = (lp->ll_dict->dv_scope == VAR_DEF_SCOPE
- && rettv->v_type == VAR_FUNC
- && var_check_func_name(key, lp->ll_di == NULL))
- || !valid_varname(key);
- if (len != -1)
- key[len] = prevval;
- if (wrong)
- return NULL;
- }
-
- if (lp->ll_di == NULL) {
- /* Can't add "v:" variable. */
- if (lp->ll_dict == &vimvardict) {
- EMSG2(_(e_illvar), name);
- return NULL;
- }
-
- /* Key does not exist in dict: may need to add it. */
- if (*p == '[' || *p == '.' || unlet) {
- if (!quiet)
- EMSG2(_(e_dictkey), key);
- if (len == -1)
- clear_tv(&var1);
- return NULL;
- }
- if (len == -1)
- lp->ll_newkey = vim_strsave(key);
- else
- lp->ll_newkey = vim_strnsave(key, len);
- if (len == -1)
- clear_tv(&var1);
- if (lp->ll_newkey == NULL)
- p = NULL;
- break;
- }
- /* existing variable, need to check if it can be changed */
- else if (var_check_ro(lp->ll_di->di_flags, name))
- return NULL;
-
- if (len == -1)
- clear_tv(&var1);
- lp->ll_tv = &lp->ll_di->di_tv;
- } else {
- /*
- * Get the number and item for the only or first index of the List.
- */
- if (empty1)
- lp->ll_n1 = 0;
- else {
- lp->ll_n1 = get_tv_number(&var1); /* is number or string */
- clear_tv(&var1);
- }
- lp->ll_dict = NULL;
- lp->ll_list = lp->ll_tv->vval.v_list;
- lp->ll_li = list_find(lp->ll_list, lp->ll_n1);
- if (lp->ll_li == NULL) {
- if (lp->ll_n1 < 0) {
- lp->ll_n1 = 0;
- lp->ll_li = list_find(lp->ll_list, lp->ll_n1);
- }
- }
- if (lp->ll_li == NULL) {
- if (lp->ll_range && !lp->ll_empty2)
- clear_tv(&var2);
- if (!quiet)
- EMSGN(_(e_listidx), lp->ll_n1);
- return NULL;
- }
-
- /*
- * May need to find the item or absolute index for the second
- * index of a range.
- * When no index given: "lp->ll_empty2" is TRUE.
- * Otherwise "lp->ll_n2" is set to the second index.
- */
- if (lp->ll_range && !lp->ll_empty2) {
- lp->ll_n2 = get_tv_number(&var2); /* is number or string */
- clear_tv(&var2);
- if (lp->ll_n2 < 0) {
- ni = list_find(lp->ll_list, lp->ll_n2);
- if (ni == NULL) {
- if (!quiet)
- EMSGN(_(e_listidx), lp->ll_n2);
- return NULL;
- }
- lp->ll_n2 = list_idx_of_item(lp->ll_list, ni);
- }
-
- /* Check that lp->ll_n2 isn't before lp->ll_n1. */
- if (lp->ll_n1 < 0)
- lp->ll_n1 = list_idx_of_item(lp->ll_list, lp->ll_li);
- if (lp->ll_n2 < lp->ll_n1) {
- if (!quiet)
- EMSGN(_(e_listidx), lp->ll_n2);
- return NULL;
- }
- }
-
- lp->ll_tv = &lp->ll_li->li_tv;
- }
- }
-
- return p;
-}
-
-/*
- * Clear lval "lp" that was filled by get_lval().
- */
-static void clear_lval(lval_T *lp)
-{
- free(lp->ll_exp_name);
- free(lp->ll_newkey);
-}
-
-/*
- * Set a variable that was parsed by get_lval() to "rettv".
- * "endp" points to just after the parsed name.
- * "op" is NULL, "+" for "+=", "-" for "-=", "." for ".=" or "=" for "=".
- */
-static void set_var_lval(lval_T *lp, char_u *endp, typval_T *rettv, int copy, char_u *op)
-{
- int cc;
- listitem_T *ri;
- dictitem_T *di;
-
- if (lp->ll_tv == NULL) {
- if (!check_changedtick(lp->ll_name)) {
- cc = *endp;
- *endp = NUL;
- if (op != NULL && *op != '=') {
- typval_T tv;
-
- /* handle +=, -= and .= */
- if (get_var_tv(lp->ll_name, (int)STRLEN(lp->ll_name),
- &tv, TRUE, FALSE) == OK) {
- if (tv_op(&tv, rettv, op) == OK)
- set_var(lp->ll_name, &tv, FALSE);
- clear_tv(&tv);
- }
- } else
- set_var(lp->ll_name, rettv, copy);
- *endp = cc;
- }
- } else if (tv_check_lock(lp->ll_newkey == NULL
- ? lp->ll_tv->v_lock
- : lp->ll_tv->vval.v_dict->dv_lock, lp->ll_name))
- ;
- else if (lp->ll_range) {
- /*
- * Assign the List values to the list items.
- */
- for (ri = rettv->vval.v_list->lv_first; ri != NULL; ) {
- if (op != NULL && *op != '=')
- tv_op(&lp->ll_li->li_tv, &ri->li_tv, op);
- else {
- clear_tv(&lp->ll_li->li_tv);
- copy_tv(&ri->li_tv, &lp->ll_li->li_tv);
- }
- ri = ri->li_next;
- if (ri == NULL || (!lp->ll_empty2 && lp->ll_n2 == lp->ll_n1))
- break;
- if (lp->ll_li->li_next == NULL) {
- /* Need to add an empty item. */
- list_append_number(lp->ll_list, 0);
- }
- lp->ll_li = lp->ll_li->li_next;
- ++lp->ll_n1;
- }
- if (ri != NULL)
- EMSG(_("E710: List value has more items than target"));
- else if (lp->ll_empty2
- ? (lp->ll_li != NULL && lp->ll_li->li_next != NULL)
- : lp->ll_n1 != lp->ll_n2)
- EMSG(_("E711: List value has not enough items"));
- } else {
- /*
- * Assign to a List or Dictionary item.
- */
- if (lp->ll_newkey != NULL) {
- if (op != NULL && *op != '=') {
- EMSG2(_(e_letwrong), op);
- return;
- }
-
- /* Need to add an item to the Dictionary. */
- di = dictitem_alloc(lp->ll_newkey);
- if (di == NULL)
- return;
- if (dict_add(lp->ll_tv->vval.v_dict, di) == FAIL) {
- free(di);
- return;
- }
- lp->ll_tv = &di->di_tv;
- } else if (op != NULL && *op != '=') {
- tv_op(lp->ll_tv, rettv, op);
- return;
- } else
- clear_tv(lp->ll_tv);
-
- /*
- * Assign the value to the variable or list item.
- */
- if (copy)
- copy_tv(rettv, lp->ll_tv);
- else {
- *lp->ll_tv = *rettv;
- lp->ll_tv->v_lock = 0;
- init_tv(rettv);
- }
- }
-}
-
-/*
- * Handle "tv1 += tv2", "tv1 -= tv2" and "tv1 .= tv2"
- * Returns OK or FAIL.
- */
-static int tv_op(typval_T *tv1, typval_T *tv2, char_u *op)
-{
- long n;
- char_u numbuf[NUMBUFLEN];
- char_u *s;
-
- /* Can't do anything with a Funcref or a Dict on the right. */
- if (tv2->v_type != VAR_FUNC && tv2->v_type != VAR_DICT) {
- switch (tv1->v_type) {
- case VAR_DICT:
- case VAR_FUNC:
- break;
-
- case VAR_LIST:
- if (*op != '+' || tv2->v_type != VAR_LIST)
- break;
- /* List += List */
- if (tv1->vval.v_list != NULL && tv2->vval.v_list != NULL)
- list_extend(tv1->vval.v_list, tv2->vval.v_list, NULL);
- return OK;
-
- case VAR_NUMBER:
- case VAR_STRING:
- if (tv2->v_type == VAR_LIST)
- break;
- if (*op == '+' || *op == '-') {
- /* nr += nr or nr -= nr*/
- n = get_tv_number(tv1);
- if (tv2->v_type == VAR_FLOAT) {
- float_T f = n;
-
- if (*op == '+')
- f += tv2->vval.v_float;
- else
- f -= tv2->vval.v_float;
- clear_tv(tv1);
- tv1->v_type = VAR_FLOAT;
- tv1->vval.v_float = f;
- } else {
- if (*op == '+')
- n += get_tv_number(tv2);
- else
- n -= get_tv_number(tv2);
- clear_tv(tv1);
- tv1->v_type = VAR_NUMBER;
- tv1->vval.v_number = n;
- }
- } else {
- if (tv2->v_type == VAR_FLOAT)
- break;
-
- /* str .= str */
- s = get_tv_string(tv1);
- s = concat_str(s, get_tv_string_buf(tv2, numbuf));
- clear_tv(tv1);
- tv1->v_type = VAR_STRING;
- tv1->vval.v_string = s;
- }
- return OK;
-
- case VAR_FLOAT:
- {
- float_T f;
-
- if (*op == '.' || (tv2->v_type != VAR_FLOAT
- && tv2->v_type != VAR_NUMBER
- && tv2->v_type != VAR_STRING))
- break;
- if (tv2->v_type == VAR_FLOAT)
- f = tv2->vval.v_float;
- else
- f = get_tv_number(tv2);
- if (*op == '+')
- tv1->vval.v_float += f;
- else
- tv1->vval.v_float -= f;
- }
- return OK;
- }
- }
-
- EMSG2(_(e_letwrong), op);
- return FAIL;
-}
-
-/*
- * Add a watcher to a list.
- */
-void list_add_watch(list_T *l, listwatch_T *lw)
-{
- lw->lw_next = l->lv_watch;
- l->lv_watch = lw;
-}
-
-/*
- * Remove a watcher from a list.
- * No warning when it isn't found...
- */
-void list_rem_watch(list_T *l, listwatch_T *lwrem)
-{
- listwatch_T *lw, **lwp;
-
- lwp = &l->lv_watch;
- for (lw = l->lv_watch; lw != NULL; lw = lw->lw_next) {
- if (lw == lwrem) {
- *lwp = lw->lw_next;
- break;
- }
- lwp = &lw->lw_next;
- }
-}
-
-/*
- * Just before removing an item from a list: advance watchers to the next
- * item.
- */
-static void list_fix_watch(list_T *l, listitem_T *item)
-{
- listwatch_T *lw;
-
- for (lw = l->lv_watch; lw != NULL; lw = lw->lw_next)
- if (lw->lw_item == item)
- lw->lw_item = item->li_next;
-}
-
-/*
- * Evaluate the expression used in a ":for var in expr" command.
- * "arg" points to "var".
- * Set "*errp" to TRUE for an error, FALSE otherwise;
- * Return a pointer that holds the info. Null when there is an error.
- */
-void *eval_for_line(char_u *arg, int *errp, char_u **nextcmdp, int skip)
-{
- forinfo_T *fi = xcalloc(1, sizeof(forinfo_T));
- char_u *expr;
- typval_T tv;
- list_T *l;
-
- *errp = TRUE; /* default: there is an error */
-
- expr = skip_var_list(arg, &fi->fi_varcount, &fi->fi_semicolon);
- if (expr == NULL)
- return fi;
-
- expr = skipwhite(expr);
- if (expr[0] != 'i' || expr[1] != 'n' || !vim_iswhite(expr[2])) {
- EMSG(_("E690: Missing \"in\" after :for"));
- return fi;
- }
-
- if (skip)
- ++emsg_skip;
- if (eval0(skipwhite(expr + 2), &tv, nextcmdp, !skip) == OK) {
- *errp = FALSE;
- if (!skip) {
- l = tv.vval.v_list;
- if (tv.v_type != VAR_LIST || l == NULL) {
- EMSG(_(e_listreq));
- clear_tv(&tv);
- } else {
- /* No need to increment the refcount, it's already set for the
- * list being used in "tv". */
- fi->fi_list = l;
- list_add_watch(l, &fi->fi_lw);
- fi->fi_lw.lw_item = l->lv_first;
- }
- }
- }
- if (skip)
- --emsg_skip;
-
- return fi;
-}
-
-/*
- * Use the first item in a ":for" list. Advance to the next.
- * Assign the values to the variable (list). "arg" points to the first one.
- * Return TRUE when a valid item was found, FALSE when at end of list or
- * something wrong.
- */
-int next_for_item(void *fi_void, char_u *arg)
-{
- forinfo_T *fi = (forinfo_T *)fi_void;
- int result;
- listitem_T *item;
-
- item = fi->fi_lw.lw_item;
- if (item == NULL)
- result = FALSE;
- else {
- fi->fi_lw.lw_item = item->li_next;
- result = (ex_let_vars(arg, &item->li_tv, TRUE,
- fi->fi_semicolon, fi->fi_varcount, NULL) == OK);
- }
- return result;
-}
-
-/*
- * Free the structure used to store info used by ":for".
- */
-void free_for_info(void *fi_void)
-{
- forinfo_T *fi = (forinfo_T *)fi_void;
-
- if (fi != NULL && fi->fi_list != NULL) {
- list_rem_watch(fi->fi_list, &fi->fi_lw);
- list_unref(fi->fi_list);
- }
- free(fi);
-}
-
-
-void set_context_for_expression(expand_T *xp, char_u *arg, cmdidx_T cmdidx)
-{
- int got_eq = FALSE;
- int c;
- char_u *p;
-
- if (cmdidx == CMD_let) {
- xp->xp_context = EXPAND_USER_VARS;
- if (vim_strpbrk(arg, (char_u *)"\"'+-*/%.=!?~|&$([<>,#") == NULL) {
- /* ":let var1 var2 ...": find last space. */
- for (p = arg + STRLEN(arg); p >= arg; ) {
- xp->xp_pattern = p;
- mb_ptr_back(arg, p);
- if (vim_iswhite(*p))
- break;
- }
- return;
- }
- } else
- xp->xp_context = cmdidx == CMD_call ? EXPAND_FUNCTIONS
- : EXPAND_EXPRESSION;
- while ((xp->xp_pattern = vim_strpbrk(arg,
- (char_u *)"\"'+-*/%.=!?~|&$([<>,#")) != NULL) {
- c = *xp->xp_pattern;
- if (c == '&') {
- c = xp->xp_pattern[1];
- if (c == '&') {
- ++xp->xp_pattern;
- xp->xp_context = cmdidx != CMD_let || got_eq
- ? EXPAND_EXPRESSION : EXPAND_NOTHING;
- } else if (c != ' ') {
- xp->xp_context = EXPAND_SETTINGS;
- if ((c == 'l' || c == 'g') && xp->xp_pattern[2] == ':')
- xp->xp_pattern += 2;
-
- }
- } else if (c == '$') {
- /* environment variable */
- xp->xp_context = EXPAND_ENV_VARS;
- } else if (c == '=') {
- got_eq = TRUE;
- xp->xp_context = EXPAND_EXPRESSION;
- } else if (c == '<'
- && xp->xp_context == EXPAND_FUNCTIONS
- && vim_strchr(xp->xp_pattern, '(') == NULL) {
- /* Function name can start with "<SNR>" */
- break;
- } else if (cmdidx != CMD_let || got_eq) {
- if (c == '"') { /* string */
- while ((c = *++xp->xp_pattern) != NUL && c != '"')
- if (c == '\\' && xp->xp_pattern[1] != NUL)
- ++xp->xp_pattern;
- xp->xp_context = EXPAND_NOTHING;
- } else if (c == '\'') { /* literal string */
- /* Trick: '' is like stopping and starting a literal string. */
- while ((c = *++xp->xp_pattern) != NUL && c != '\'')
- /* skip */;
- xp->xp_context = EXPAND_NOTHING;
- } else if (c == '|') {
- if (xp->xp_pattern[1] == '|') {
- ++xp->xp_pattern;
- xp->xp_context = EXPAND_EXPRESSION;
- } else
- xp->xp_context = EXPAND_COMMANDS;
- } else
- xp->xp_context = EXPAND_EXPRESSION;
- } else
- /* Doesn't look like something valid, expand as an expression
- * anyway. */
- xp->xp_context = EXPAND_EXPRESSION;
- arg = xp->xp_pattern;
- if (*arg != NUL)
- while ((c = *++arg) != NUL && (c == ' ' || c == '\t'))
- /* skip */;
- }
- xp->xp_pattern = arg;
-}
-
-
-/*
- * ":1,25call func(arg1, arg2)" function call.
- */
-void ex_call(exarg_T *eap)
-{
- char_u *arg = eap->arg;
- char_u *startarg;
- char_u *name;
- char_u *tofree;
- int len;
- typval_T rettv;
- linenr_T lnum;
- int doesrange;
- int failed = FALSE;
- funcdict_T fudi;
-
- if (eap->skip) {
- /* trans_function_name() doesn't work well when skipping, use eval0()
- * instead to skip to any following command, e.g. for:
- * :if 0 | call dict.foo().bar() | endif */
- ++emsg_skip;
- if (eval0(eap->arg, &rettv, &eap->nextcmd, FALSE) != FAIL)
- clear_tv(&rettv);
- --emsg_skip;
- return;
- }
-
- tofree = trans_function_name(&arg, eap->skip, TFN_INT, &fudi);
- if (fudi.fd_newkey != NULL) {
- /* Still need to give an error message for missing key. */
- EMSG2(_(e_dictkey), fudi.fd_newkey);
- free(fudi.fd_newkey);
- }
- if (tofree == NULL)
- return;
-
- /* Increase refcount on dictionary, it could get deleted when evaluating
- * the arguments. */
- if (fudi.fd_dict != NULL)
- ++fudi.fd_dict->dv_refcount;
-
- /* If it is the name of a variable of type VAR_FUNC use its contents. */
- len = (int)STRLEN(tofree);
- name = deref_func_name(tofree, &len, FALSE);
-
- /* Skip white space to allow ":call func ()". Not good, but required for
- * backward compatibility. */
- startarg = skipwhite(arg);
- rettv.v_type = VAR_UNKNOWN; /* clear_tv() uses this */
-
- if (*startarg != '(') {
- EMSG2(_("E107: Missing parentheses: %s"), eap->arg);
- goto end;
- }
-
- /*
- * When skipping, evaluate the function once, to find the end of the
- * arguments.
- * When the function takes a range, this is discovered after the first
- * call, and the loop is broken.
- */
- if (eap->skip) {
- ++emsg_skip;
- lnum = eap->line2; /* do it once, also with an invalid range */
- } else
- lnum = eap->line1;
- for (; lnum <= eap->line2; ++lnum) {
- if (!eap->skip && eap->addr_count > 0) {
- curwin->w_cursor.lnum = lnum;
- curwin->w_cursor.col = 0;
- curwin->w_cursor.coladd = 0;
- }
- arg = startarg;
- if (get_func_tv(name, (int)STRLEN(name), &rettv, &arg,
- eap->line1, eap->line2, &doesrange,
- !eap->skip, fudi.fd_dict) == FAIL) {
- failed = TRUE;
- break;
- }
-
- /* Handle a function returning a Funcref, Dictionary or List. */
- if (handle_subscript(&arg, &rettv, !eap->skip, TRUE) == FAIL) {
- failed = TRUE;
- break;
- }
-
- clear_tv(&rettv);
- if (doesrange || eap->skip)
- break;
-
- /* Stop when immediately aborting on error, or when an interrupt
- * occurred or an exception was thrown but not caught.
- * get_func_tv() returned OK, so that the check for trailing
- * characters below is executed. */
- if (aborting())
- break;
- }
- if (eap->skip)
- --emsg_skip;
-
- if (!failed) {
- /* Check for trailing illegal characters and a following command. */
- if (!ends_excmd(*arg)) {
- emsg_severe = TRUE;
- EMSG(_(e_trailing));
- } else
- eap->nextcmd = check_nextcmd(arg);
- }
-
-end:
- dict_unref(fudi.fd_dict);
- free(tofree);
-}
-
-/*
- * ":unlet[!] var1 ... " command.
- */
-void ex_unlet(exarg_T *eap)
-{
- ex_unletlock(eap, eap->arg, 0);
-}
-
-/*
- * ":lockvar" and ":unlockvar" commands
- */
-void ex_lockvar(exarg_T *eap)
-{
- char_u *arg = eap->arg;
- int deep = 2;
-
- if (eap->forceit)
- deep = -1;
- else if (vim_isdigit(*arg)) {
- deep = getdigits(&arg);
- arg = skipwhite(arg);
- }
-
- ex_unletlock(eap, arg, deep);
-}
-
-/*
- * ":unlet", ":lockvar" and ":unlockvar" are quite similar.
- */
-static void ex_unletlock(exarg_T *eap, char_u *argstart, int deep)
-{
- char_u *arg = argstart;
- char_u *name_end;
- int error = FALSE;
- lval_T lv;
-
- do {
- /* Parse the name and find the end. */
- name_end = get_lval(arg, NULL, &lv, TRUE, eap->skip || error, 0,
- FNE_CHECK_START);
- if (lv.ll_name == NULL)
- error = TRUE; /* error but continue parsing */
- if (name_end == NULL || (!vim_iswhite(*name_end)
- && !ends_excmd(*name_end))) {
- if (name_end != NULL) {
- emsg_severe = TRUE;
- EMSG(_(e_trailing));
- }
- if (!(eap->skip || error))
- clear_lval(&lv);
- break;
- }
-
- if (!error && !eap->skip) {
- if (eap->cmdidx == CMD_unlet) {
- if (do_unlet_var(&lv, name_end, eap->forceit) == FAIL)
- error = TRUE;
- } else {
- if (do_lock_var(&lv, name_end, deep,
- eap->cmdidx == CMD_lockvar) == FAIL)
- error = TRUE;
- }
- }
-
- if (!eap->skip)
- clear_lval(&lv);
-
- arg = skipwhite(name_end);
- } while (!ends_excmd(*arg));
-
- eap->nextcmd = check_nextcmd(arg);
-}
-
-static int do_unlet_var(lval_T *lp, char_u *name_end, int forceit)
-{
- int ret = OK;
- int cc;
-
- if (lp->ll_tv == NULL) {
- cc = *name_end;
- *name_end = NUL;
-
- /* Normal name or expanded name. */
- if (check_changedtick(lp->ll_name))
- ret = FAIL;
- else if (do_unlet(lp->ll_name, forceit) == FAIL)
- ret = FAIL;
- *name_end = cc;
- } else if (tv_check_lock(lp->ll_tv->v_lock, lp->ll_name))
- return FAIL;
- else if (lp->ll_range) {
- listitem_T *li;
-
- /* Delete a range of List items. */
- while (lp->ll_li != NULL && (lp->ll_empty2 || lp->ll_n2 >= lp->ll_n1)) {
- li = lp->ll_li->li_next;
- listitem_remove(lp->ll_list, lp->ll_li);
- lp->ll_li = li;
- ++lp->ll_n1;
- }
- } else {
- if (lp->ll_list != NULL)
- /* unlet a List item. */
- listitem_remove(lp->ll_list, lp->ll_li);
- else
- /* unlet a Dictionary item. */
- dictitem_remove(lp->ll_dict, lp->ll_di);
- }
-
- return ret;
-}
-
-/*
- * "unlet" a variable. Return OK if it existed, FAIL if not.
- * When "forceit" is TRUE don't complain if the variable doesn't exist.
- */
-int do_unlet(char_u *name, int forceit)
-{
- hashtab_T *ht;
- hashitem_T *hi;
- char_u *varname;
- dictitem_T *di;
-
- ht = find_var_ht(name, &varname);
- if (ht != NULL && *varname != NUL) {
- hi = hash_find(ht, varname);
- if (!HASHITEM_EMPTY(hi)) {
- di = HI2DI(hi);
- if (var_check_fixed(di->di_flags, name)
- || var_check_ro(di->di_flags, name))
- return FAIL;
- delete_var(ht, hi);
- return OK;
- }
- }
- if (forceit)
- return OK;
- EMSG2(_("E108: No such variable: \"%s\""), name);
- return FAIL;
-}
-
-/*
- * Lock or unlock variable indicated by "lp".
- * "deep" is the levels to go (-1 for unlimited);
- * "lock" is TRUE for ":lockvar", FALSE for ":unlockvar".
- */
-static int do_lock_var(lval_T *lp, char_u *name_end, int deep, int lock)
-{
- int ret = OK;
- int cc;
- dictitem_T *di;
-
- if (deep == 0) /* nothing to do */
- return OK;
-
- if (lp->ll_tv == NULL) {
- cc = *name_end;
- *name_end = NUL;
-
- /* Normal name or expanded name. */
- if (check_changedtick(lp->ll_name))
- ret = FAIL;
- else {
- di = find_var(lp->ll_name, NULL, TRUE);
- if (di == NULL)
- ret = FAIL;
- else {
- if (lock)
- di->di_flags |= DI_FLAGS_LOCK;
- else
- di->di_flags &= ~DI_FLAGS_LOCK;
- item_lock(&di->di_tv, deep, lock);
- }
- }
- *name_end = cc;
- } else if (lp->ll_range) {
- listitem_T *li = lp->ll_li;
-
- /* (un)lock a range of List items. */
- while (li != NULL && (lp->ll_empty2 || lp->ll_n2 >= lp->ll_n1)) {
- item_lock(&li->li_tv, deep, lock);
- li = li->li_next;
- ++lp->ll_n1;
- }
- } else if (lp->ll_list != NULL)
- /* (un)lock a List item. */
- item_lock(&lp->ll_li->li_tv, deep, lock);
- else
- /* un(lock) a Dictionary item. */
- item_lock(&lp->ll_di->di_tv, deep, lock);
-
- return ret;
-}
-
-/*
- * Lock or unlock an item. "deep" is nr of levels to go.
- */
-static void item_lock(typval_T *tv, int deep, int lock)
-{
- static int recurse = 0;
- list_T *l;
- listitem_T *li;
- dict_T *d;
- hashitem_T *hi;
- int todo;
-
- if (recurse >= DICT_MAXNEST) {
- EMSG(_("E743: variable nested too deep for (un)lock"));
- return;
- }
- if (deep == 0)
- return;
- ++recurse;
-
- /* lock/unlock the item itself */
- if (lock)
- tv->v_lock |= VAR_LOCKED;
- else
- tv->v_lock &= ~VAR_LOCKED;
-
- switch (tv->v_type) {
- case VAR_LIST:
- if ((l = tv->vval.v_list) != NULL) {
- if (lock)
- l->lv_lock |= VAR_LOCKED;
- else
- l->lv_lock &= ~VAR_LOCKED;
- if (deep < 0 || deep > 1)
- /* recursive: lock/unlock the items the List contains */
- for (li = l->lv_first; li != NULL; li = li->li_next)
- item_lock(&li->li_tv, deep - 1, lock);
- }
- break;
- case VAR_DICT:
- if ((d = tv->vval.v_dict) != NULL) {
- if (lock)
- d->dv_lock |= VAR_LOCKED;
- else
- d->dv_lock &= ~VAR_LOCKED;
- if (deep < 0 || deep > 1) {
- /* recursive: lock/unlock the items the List contains */
- todo = (int)d->dv_hashtab.ht_used;
- for (hi = d->dv_hashtab.ht_array; todo > 0; ++hi) {
- if (!HASHITEM_EMPTY(hi)) {
- --todo;
- item_lock(&HI2DI(hi)->di_tv, deep - 1, lock);
- }
- }
- }
- }
- }
- --recurse;
-}
-
-/*
- * Return TRUE if typeval "tv" is locked: Either that value is locked itself
- * or it refers to a List or Dictionary that is locked.
- */
-static int tv_islocked(typval_T *tv)
-{
- return (tv->v_lock & VAR_LOCKED)
- || (tv->v_type == VAR_LIST
- && tv->vval.v_list != NULL
- && (tv->vval.v_list->lv_lock & VAR_LOCKED))
- || (tv->v_type == VAR_DICT
- && tv->vval.v_dict != NULL
- && (tv->vval.v_dict->dv_lock & VAR_LOCKED));
-}
-
-/*
- * Delete all "menutrans_" variables.
- */
-void del_menutrans_vars(void)
-{
- hashitem_T *hi;
- int todo;
-
- hash_lock(&globvarht);
- todo = (int)globvarht.ht_used;
- for (hi = globvarht.ht_array; todo > 0 && !got_int; ++hi) {
- if (!HASHITEM_EMPTY(hi)) {
- --todo;
- if (STRNCMP(HI2DI(hi)->di_key, "menutrans_", 10) == 0)
- delete_var(&globvarht, hi);
- }
- }
- hash_unlock(&globvarht);
-}
-
-/*
- * Local string buffer for the next two functions to store a variable name
- * with its prefix. Allocated in cat_prefix_varname(), freed later in
- * get_user_var_name().
- */
-
-static char_u *cat_prefix_varname(int prefix, char_u *name);
-
-static char_u *varnamebuf = NULL;
-static int varnamebuflen = 0;
-
-/*
- * Function to concatenate a prefix and a variable name.
- */
-static char_u *cat_prefix_varname(int prefix, char_u *name)
-{
- int len;
-
- len = (int)STRLEN(name) + 3;
- if (len > varnamebuflen) {
- free(varnamebuf);
- len += 10; /* some additional space */
- varnamebuf = alloc(len);
- if (varnamebuf == NULL) {
- varnamebuflen = 0;
- return NULL;
- }
- varnamebuflen = len;
- }
- *varnamebuf = prefix;
- varnamebuf[1] = ':';
- STRCPY(varnamebuf + 2, name);
- return varnamebuf;
-}
-
-/*
- * Function given to ExpandGeneric() to obtain the list of user defined
- * (global/buffer/window/built-in) variable names.
- */
-char_u *get_user_var_name(expand_T *xp, int idx)
-{
- static long_u gdone;
- static long_u bdone;
- static long_u wdone;
- static long_u tdone;
- static int vidx;
- static hashitem_T *hi;
- hashtab_T *ht;
-
- if (idx == 0) {
- gdone = bdone = wdone = vidx = 0;
- tdone = 0;
- }
-
- /* Global variables */
- if (gdone < globvarht.ht_used) {
- if (gdone++ == 0)
- hi = globvarht.ht_array;
- else
- ++hi;
- while (HASHITEM_EMPTY(hi))
- ++hi;
- if (STRNCMP("g:", xp->xp_pattern, 2) == 0)
- return cat_prefix_varname('g', hi->hi_key);
- return hi->hi_key;
- }
-
- /* b: variables */
- ht = &curbuf->b_vars->dv_hashtab;
- if (bdone < ht->ht_used) {
- if (bdone++ == 0)
- hi = ht->ht_array;
- else
- ++hi;
- while (HASHITEM_EMPTY(hi))
- ++hi;
- return cat_prefix_varname('b', hi->hi_key);
- }
- if (bdone == ht->ht_used) {
- ++bdone;
- return (char_u *)"b:changedtick";
- }
-
- /* w: variables */
- ht = &curwin->w_vars->dv_hashtab;
- if (wdone < ht->ht_used) {
- if (wdone++ == 0)
- hi = ht->ht_array;
- else
- ++hi;
- while (HASHITEM_EMPTY(hi))
- ++hi;
- return cat_prefix_varname('w', hi->hi_key);
- }
-
- /* t: variables */
- ht = &curtab->tp_vars->dv_hashtab;
- if (tdone < ht->ht_used) {
- if (tdone++ == 0)
- hi = ht->ht_array;
- else
- ++hi;
- while (HASHITEM_EMPTY(hi))
- ++hi;
- return cat_prefix_varname('t', hi->hi_key);
- }
-
- /* v: variables */
- if (vidx < VV_LEN)
- return cat_prefix_varname('v', (char_u *)vimvars[vidx++].vv_name);
-
- free(varnamebuf);
- varnamebuf = NULL;
- varnamebuflen = 0;
- return NULL;
-}
-
-
-/*
- * types for expressions.
- */
-typedef enum {
- TYPE_UNKNOWN = 0
- , TYPE_EQUAL /* == */
- , TYPE_NEQUAL /* != */
- , TYPE_GREATER /* > */
- , TYPE_GEQUAL /* >= */
- , TYPE_SMALLER /* < */
- , TYPE_SEQUAL /* <= */
- , TYPE_MATCH /* =~ */
- , TYPE_NOMATCH /* !~ */
-} exptype_T;
-
-/*
- * The "evaluate" argument: When FALSE, the argument is only parsed but not
- * executed. The function may return OK, but the rettv will be of type
- * VAR_UNKNOWN. The function still returns FAIL for a syntax error.
- */
-
-/*
- * Handle zero level expression.
- * This calls eval1() and handles error message and nextcmd.
- * Put the result in "rettv" when returning OK and "evaluate" is TRUE.
- * Note: "rettv.v_lock" is not set.
- * Return OK or FAIL.
- */
-static int eval0(char_u *arg, typval_T *rettv, char_u **nextcmd, int evaluate)
-{
- int ret;
- char_u *p;
-
- p = skipwhite(arg);
- ret = eval1(&p, rettv, evaluate);
- if (ret == FAIL || !ends_excmd(*p)) {
- if (ret != FAIL)
- clear_tv(rettv);
- /*
- * Report the invalid expression unless the expression evaluation has
- * been cancelled due to an aborting error, an interrupt, or an
- * exception.
- */
- if (!aborting())
- EMSG2(_(e_invexpr2), arg);
- ret = FAIL;
- }
- if (nextcmd != NULL)
- *nextcmd = check_nextcmd(p);
-
- return ret;
-}
-
-/*
- * Handle top level expression:
- * expr2 ? expr1 : expr1
- *
- * "arg" must point to the first non-white of the expression.
- * "arg" is advanced to the next non-white after the recognized expression.
- *
- * Note: "rettv.v_lock" is not set.
- *
- * Return OK or FAIL.
- */
-static int eval1(char_u **arg, typval_T *rettv, int evaluate)
-{
- int result;
- typval_T var2;
-
- /*
- * Get the first variable.
- */
- if (eval2(arg, rettv, evaluate) == FAIL)
- return FAIL;
-
- if ((*arg)[0] == '?') {
- result = FALSE;
- if (evaluate) {
- int error = FALSE;
-
- if (get_tv_number_chk(rettv, &error) != 0)
- result = TRUE;
- clear_tv(rettv);
- if (error)
- return FAIL;
- }
-
- /*
- * Get the second variable.
- */
- *arg = skipwhite(*arg + 1);
- if (eval1(arg, rettv, evaluate && result) == FAIL) /* recursive! */
- return FAIL;
-
- /*
- * Check for the ":".
- */
- if ((*arg)[0] != ':') {
- EMSG(_("E109: Missing ':' after '?'"));
- if (evaluate && result)
- clear_tv(rettv);
- return FAIL;
- }
-
- /*
- * Get the third variable.
- */
- *arg = skipwhite(*arg + 1);
- if (eval1(arg, &var2, evaluate && !result) == FAIL) { /* recursive! */
- if (evaluate && result)
- clear_tv(rettv);
- return FAIL;
- }
- if (evaluate && !result)
- *rettv = var2;
- }
-
- return OK;
-}
-
-/*
- * Handle first level expression:
- * expr2 || expr2 || expr2 logical OR
- *
- * "arg" must point to the first non-white of the expression.
- * "arg" is advanced to the next non-white after the recognized expression.
- *
- * Return OK or FAIL.
- */
-static int eval2(char_u **arg, typval_T *rettv, int evaluate)
-{
- typval_T var2;
- long result;
- int first;
- int error = FALSE;
-
- /*
- * Get the first variable.
- */
- if (eval3(arg, rettv, evaluate) == FAIL)
- return FAIL;
-
- /*
- * Repeat until there is no following "||".
- */
- first = TRUE;
- result = FALSE;
- while ((*arg)[0] == '|' && (*arg)[1] == '|') {
- if (evaluate && first) {
- if (get_tv_number_chk(rettv, &error) != 0)
- result = TRUE;
- clear_tv(rettv);
- if (error)
- return FAIL;
- first = FALSE;
- }
-
- /*
- * Get the second variable.
- */
- *arg = skipwhite(*arg + 2);
- if (eval3(arg, &var2, evaluate && !result) == FAIL)
- return FAIL;
-
- /*
- * Compute the result.
- */
- if (evaluate && !result) {
- if (get_tv_number_chk(&var2, &error) != 0)
- result = TRUE;
- clear_tv(&var2);
- if (error)
- return FAIL;
- }
- if (evaluate) {
- rettv->v_type = VAR_NUMBER;
- rettv->vval.v_number = result;
- }
- }
-
- return OK;
-}
-
-/*
- * Handle second level expression:
- * expr3 && expr3 && expr3 logical AND
- *
- * "arg" must point to the first non-white of the expression.
- * "arg" is advanced to the next non-white after the recognized expression.
- *
- * Return OK or FAIL.
- */
-static int eval3(char_u **arg, typval_T *rettv, int evaluate)
-{
- typval_T var2;
- long result;
- int first;
- int error = FALSE;
-
- /*
- * Get the first variable.
- */
- if (eval4(arg, rettv, evaluate) == FAIL)
- return FAIL;
-
- /*
- * Repeat until there is no following "&&".
- */
- first = TRUE;
- result = TRUE;
- while ((*arg)[0] == '&' && (*arg)[1] == '&') {
- if (evaluate && first) {
- if (get_tv_number_chk(rettv, &error) == 0)
- result = FALSE;
- clear_tv(rettv);
- if (error)
- return FAIL;
- first = FALSE;
- }
-
- /*
- * Get the second variable.
- */
- *arg = skipwhite(*arg + 2);
- if (eval4(arg, &var2, evaluate && result) == FAIL)
- return FAIL;
-
- /*
- * Compute the result.
- */
- if (evaluate && result) {
- if (get_tv_number_chk(&var2, &error) == 0)
- result = FALSE;
- clear_tv(&var2);
- if (error)
- return FAIL;
- }
- if (evaluate) {
- rettv->v_type = VAR_NUMBER;
- rettv->vval.v_number = result;
- }
- }
-
- return OK;
-}
-
-/*
- * Handle third level expression:
- * var1 == var2
- * var1 =~ var2
- * var1 != var2
- * var1 !~ var2
- * var1 > var2
- * var1 >= var2
- * var1 < var2
- * var1 <= var2
- * var1 is var2
- * var1 isnot var2
- *
- * "arg" must point to the first non-white of the expression.
- * "arg" is advanced to the next non-white after the recognized expression.
- *
- * Return OK or FAIL.
- */
-static int eval4(char_u **arg, typval_T *rettv, int evaluate)
-{
- typval_T var2;
- char_u *p;
- int i;
- exptype_T type = TYPE_UNKNOWN;
- int type_is = FALSE; /* TRUE for "is" and "isnot" */
- int len = 2;
- long n1, n2;
- char_u *s1, *s2;
- char_u buf1[NUMBUFLEN], buf2[NUMBUFLEN];
- regmatch_T regmatch;
- int ic;
- char_u *save_cpo;
-
- /*
- * Get the first variable.
- */
- if (eval5(arg, rettv, evaluate) == FAIL)
- return FAIL;
-
- p = *arg;
- switch (p[0]) {
- case '=': if (p[1] == '=')
- type = TYPE_EQUAL;
- else if (p[1] == '~')
- type = TYPE_MATCH;
- break;
- case '!': if (p[1] == '=')
- type = TYPE_NEQUAL;
- else if (p[1] == '~')
- type = TYPE_NOMATCH;
- break;
- case '>': if (p[1] != '=') {
- type = TYPE_GREATER;
- len = 1;
- } else
- type = TYPE_GEQUAL;
- break;
- case '<': if (p[1] != '=') {
- type = TYPE_SMALLER;
- len = 1;
- } else
- type = TYPE_SEQUAL;
- break;
- case 'i': if (p[1] == 's') {
- if (p[2] == 'n' && p[3] == 'o' && p[4] == 't')
- len = 5;
- if (!vim_isIDc(p[len])) {
- type = len == 2 ? TYPE_EQUAL : TYPE_NEQUAL;
- type_is = TRUE;
- }
- }
- break;
- }
-
- /*
- * If there is a comparative operator, use it.
- */
- if (type != TYPE_UNKNOWN) {
- /* extra question mark appended: ignore case */
- if (p[len] == '?') {
- ic = TRUE;
- ++len;
- }
- /* extra '#' appended: match case */
- else if (p[len] == '#') {
- ic = FALSE;
- ++len;
- }
- /* nothing appended: use 'ignorecase' */
- else
- ic = p_ic;
-
- /*
- * Get the second variable.
- */
- *arg = skipwhite(p + len);
- if (eval5(arg, &var2, evaluate) == FAIL) {
- clear_tv(rettv);
- return FAIL;
- }
-
- if (evaluate) {
- if (type_is && rettv->v_type != var2.v_type) {
- /* For "is" a different type always means FALSE, for "notis"
- * it means TRUE. */
- n1 = (type == TYPE_NEQUAL);
- } else if (rettv->v_type == VAR_LIST || var2.v_type == VAR_LIST) {
- if (type_is) {
- n1 = (rettv->v_type == var2.v_type
- && rettv->vval.v_list == var2.vval.v_list);
- if (type == TYPE_NEQUAL)
- n1 = !n1;
- } else if (rettv->v_type != var2.v_type
- || (type != TYPE_EQUAL && type != TYPE_NEQUAL)) {
- if (rettv->v_type != var2.v_type)
- EMSG(_("E691: Can only compare List with List"));
- else
- EMSG(_("E692: Invalid operation for Lists"));
- clear_tv(rettv);
- clear_tv(&var2);
- return FAIL;
- } else {
- /* Compare two Lists for being equal or unequal. */
- n1 = list_equal(rettv->vval.v_list, var2.vval.v_list,
- ic, FALSE);
- if (type == TYPE_NEQUAL)
- n1 = !n1;
- }
- } else if (rettv->v_type == VAR_DICT || var2.v_type == VAR_DICT) {
- if (type_is) {
- n1 = (rettv->v_type == var2.v_type
- && rettv->vval.v_dict == var2.vval.v_dict);
- if (type == TYPE_NEQUAL)
- n1 = !n1;
- } else if (rettv->v_type != var2.v_type
- || (type != TYPE_EQUAL && type != TYPE_NEQUAL)) {
- if (rettv->v_type != var2.v_type)
- EMSG(_("E735: Can only compare Dictionary with Dictionary"));
- else
- EMSG(_("E736: Invalid operation for Dictionary"));
- clear_tv(rettv);
- clear_tv(&var2);
- return FAIL;
- } else {
- /* Compare two Dictionaries for being equal or unequal. */
- n1 = dict_equal(rettv->vval.v_dict, var2.vval.v_dict,
- ic, FALSE);
- if (type == TYPE_NEQUAL)
- n1 = !n1;
- }
- } else if (rettv->v_type == VAR_FUNC || var2.v_type == VAR_FUNC) {
- if (rettv->v_type != var2.v_type
- || (type != TYPE_EQUAL && type != TYPE_NEQUAL)) {
- if (rettv->v_type != var2.v_type)
- EMSG(_("E693: Can only compare Funcref with Funcref"));
- else
- EMSG(_("E694: Invalid operation for Funcrefs"));
- clear_tv(rettv);
- clear_tv(&var2);
- return FAIL;
- } else {
- /* Compare two Funcrefs for being equal or unequal. */
- if (rettv->vval.v_string == NULL
- || var2.vval.v_string == NULL)
- n1 = FALSE;
- else
- n1 = STRCMP(rettv->vval.v_string,
- var2.vval.v_string) == 0;
- if (type == TYPE_NEQUAL)
- n1 = !n1;
- }
- }
- /*
- * If one of the two variables is a float, compare as a float.
- * When using "=~" or "!~", always compare as string.
- */
- else if ((rettv->v_type == VAR_FLOAT || var2.v_type == VAR_FLOAT)
- && type != TYPE_MATCH && type != TYPE_NOMATCH) {
- float_T f1, f2;
-
- if (rettv->v_type == VAR_FLOAT)
- f1 = rettv->vval.v_float;
- else
- f1 = get_tv_number(rettv);
- if (var2.v_type == VAR_FLOAT)
- f2 = var2.vval.v_float;
- else
- f2 = get_tv_number(&var2);
- n1 = FALSE;
- switch (type) {
- case TYPE_EQUAL: n1 = (f1 == f2); break;
- case TYPE_NEQUAL: n1 = (f1 != f2); break;
- case TYPE_GREATER: n1 = (f1 > f2); break;
- case TYPE_GEQUAL: n1 = (f1 >= f2); break;
- case TYPE_SMALLER: n1 = (f1 < f2); break;
- case TYPE_SEQUAL: n1 = (f1 <= f2); break;
- case TYPE_UNKNOWN:
- case TYPE_MATCH:
- case TYPE_NOMATCH: break; /* avoid gcc warning */
- }
- }
- /*
- * If one of the two variables is a number, compare as a number.
- * When using "=~" or "!~", always compare as string.
- */
- else if ((rettv->v_type == VAR_NUMBER || var2.v_type == VAR_NUMBER)
- && type != TYPE_MATCH && type != TYPE_NOMATCH) {
- n1 = get_tv_number(rettv);
- n2 = get_tv_number(&var2);
- switch (type) {
- case TYPE_EQUAL: n1 = (n1 == n2); break;
- case TYPE_NEQUAL: n1 = (n1 != n2); break;
- case TYPE_GREATER: n1 = (n1 > n2); break;
- case TYPE_GEQUAL: n1 = (n1 >= n2); break;
- case TYPE_SMALLER: n1 = (n1 < n2); break;
- case TYPE_SEQUAL: n1 = (n1 <= n2); break;
- case TYPE_UNKNOWN:
- case TYPE_MATCH:
- case TYPE_NOMATCH: break; /* avoid gcc warning */
- }
- } else {
- s1 = get_tv_string_buf(rettv, buf1);
- s2 = get_tv_string_buf(&var2, buf2);
- if (type != TYPE_MATCH && type != TYPE_NOMATCH)
- i = ic ? MB_STRICMP(s1, s2) : STRCMP(s1, s2);
- else
- i = 0;
- n1 = FALSE;
- switch (type) {
- case TYPE_EQUAL: n1 = (i == 0); break;
- case TYPE_NEQUAL: n1 = (i != 0); break;
- case TYPE_GREATER: n1 = (i > 0); break;
- case TYPE_GEQUAL: n1 = (i >= 0); break;
- case TYPE_SMALLER: n1 = (i < 0); break;
- case TYPE_SEQUAL: n1 = (i <= 0); break;
-
- case TYPE_MATCH:
- case TYPE_NOMATCH:
- /* avoid 'l' flag in 'cpoptions' */
- save_cpo = p_cpo;
- p_cpo = (char_u *)"";
- regmatch.regprog = vim_regcomp(s2,
- RE_MAGIC + RE_STRING);
- regmatch.rm_ic = ic;
- if (regmatch.regprog != NULL) {
- n1 = vim_regexec_nl(&regmatch, s1, (colnr_T)0);
- vim_regfree(regmatch.regprog);
- if (type == TYPE_NOMATCH)
- n1 = !n1;
- }
- p_cpo = save_cpo;
- break;
-
- case TYPE_UNKNOWN: break; /* avoid gcc warning */
- }
- }
- clear_tv(rettv);
- clear_tv(&var2);
- rettv->v_type = VAR_NUMBER;
- rettv->vval.v_number = n1;
- }
- }
-
- return OK;
-}
-
-/*
- * Handle fourth level expression:
- * + number addition
- * - number subtraction
- * . string concatenation
- *
- * "arg" must point to the first non-white of the expression.
- * "arg" is advanced to the next non-white after the recognized expression.
- *
- * Return OK or FAIL.
- */
-static int eval5(char_u **arg, typval_T *rettv, int evaluate)
-{
- typval_T var2;
- typval_T var3;
- int op;
- long n1, n2;
- float_T f1 = 0, f2 = 0;
- char_u *s1, *s2;
- char_u buf1[NUMBUFLEN], buf2[NUMBUFLEN];
- char_u *p;
-
- /*
- * Get the first variable.
- */
- if (eval6(arg, rettv, evaluate, FALSE) == FAIL)
- return FAIL;
-
- /*
- * Repeat computing, until no '+', '-' or '.' is following.
- */
- for (;; ) {
- op = **arg;
- if (op != '+' && op != '-' && op != '.')
- break;
-
- if ((op != '+' || rettv->v_type != VAR_LIST)
- && (op == '.' || rettv->v_type != VAR_FLOAT)
- ) {
- /* For "list + ...", an illegal use of the first operand as
- * a number cannot be determined before evaluating the 2nd
- * operand: if this is also a list, all is ok.
- * For "something . ...", "something - ..." or "non-list + ...",
- * we know that the first operand needs to be a string or number
- * without evaluating the 2nd operand. So check before to avoid
- * side effects after an error. */
- if (evaluate && get_tv_string_chk(rettv) == NULL) {
- clear_tv(rettv);
- return FAIL;
- }
- }
-
- /*
- * Get the second variable.
- */
- *arg = skipwhite(*arg + 1);
- if (eval6(arg, &var2, evaluate, op == '.') == FAIL) {
- clear_tv(rettv);
- return FAIL;
- }
-
- if (evaluate) {
- /*
- * Compute the result.
- */
- if (op == '.') {
- s1 = get_tv_string_buf(rettv, buf1); /* already checked */
- s2 = get_tv_string_buf_chk(&var2, buf2);
- if (s2 == NULL) { /* type error ? */
- clear_tv(rettv);
- clear_tv(&var2);
- return FAIL;
- }
- p = concat_str(s1, s2);
- clear_tv(rettv);
- rettv->v_type = VAR_STRING;
- rettv->vval.v_string = p;
- } else if (op == '+' && rettv->v_type == VAR_LIST
- && var2.v_type == VAR_LIST) {
- /* concatenate Lists */
- if (list_concat(rettv->vval.v_list, var2.vval.v_list,
- &var3) == FAIL) {
- clear_tv(rettv);
- clear_tv(&var2);
- return FAIL;
- }
- clear_tv(rettv);
- *rettv = var3;
- } else {
- int error = FALSE;
-
- if (rettv->v_type == VAR_FLOAT) {
- f1 = rettv->vval.v_float;
- n1 = 0;
- } else {
- n1 = get_tv_number_chk(rettv, &error);
- if (error) {
- /* This can only happen for "list + non-list". For
- * "non-list + ..." or "something - ...", we returned
- * before evaluating the 2nd operand. */
- clear_tv(rettv);
- return FAIL;
- }
- if (var2.v_type == VAR_FLOAT)
- f1 = n1;
- }
- if (var2.v_type == VAR_FLOAT) {
- f2 = var2.vval.v_float;
- n2 = 0;
- } else {
- n2 = get_tv_number_chk(&var2, &error);
- if (error) {
- clear_tv(rettv);
- clear_tv(&var2);
- return FAIL;
- }
- if (rettv->v_type == VAR_FLOAT)
- f2 = n2;
- }
- clear_tv(rettv);
-
- /* If there is a float on either side the result is a float. */
- if (rettv->v_type == VAR_FLOAT || var2.v_type == VAR_FLOAT) {
- if (op == '+')
- f1 = f1 + f2;
- else
- f1 = f1 - f2;
- rettv->v_type = VAR_FLOAT;
- rettv->vval.v_float = f1;
- } else {
- if (op == '+')
- n1 = n1 + n2;
- else
- n1 = n1 - n2;
- rettv->v_type = VAR_NUMBER;
- rettv->vval.v_number = n1;
- }
- }
- clear_tv(&var2);
- }
- }
- return OK;
-}
-
-/*
- * Handle fifth level expression:
- * * number multiplication
- * / number division
- * % number modulo
- *
- * "arg" must point to the first non-white of the expression.
- * "arg" is advanced to the next non-white after the recognized expression.
- *
- * Return OK or FAIL.
- */
-static int
-eval6 (
- char_u **arg,
- typval_T *rettv,
- int evaluate,
- int want_string /* after "." operator */
-)
-{
- typval_T var2;
- int op;
- long n1, n2;
- int use_float = FALSE;
- float_T f1 = 0, f2;
- int error = FALSE;
-
- /*
- * Get the first variable.
- */
- if (eval7(arg, rettv, evaluate, want_string) == FAIL)
- return FAIL;
-
- /*
- * Repeat computing, until no '*', '/' or '%' is following.
- */
- for (;; ) {
- op = **arg;
- if (op != '*' && op != '/' && op != '%')
- break;
-
- if (evaluate) {
- if (rettv->v_type == VAR_FLOAT) {
- f1 = rettv->vval.v_float;
- use_float = TRUE;
- n1 = 0;
- } else
- n1 = get_tv_number_chk(rettv, &error);
- clear_tv(rettv);
- if (error)
- return FAIL;
- } else
- n1 = 0;
-
- /*
- * Get the second variable.
- */
- *arg = skipwhite(*arg + 1);
- if (eval7(arg, &var2, evaluate, FALSE) == FAIL)
- return FAIL;
-
- if (evaluate) {
- if (var2.v_type == VAR_FLOAT) {
- if (!use_float) {
- f1 = n1;
- use_float = TRUE;
- }
- f2 = var2.vval.v_float;
- n2 = 0;
- } else {
- n2 = get_tv_number_chk(&var2, &error);
- clear_tv(&var2);
- if (error)
- return FAIL;
- if (use_float)
- f2 = n2;
- }
-
- /*
- * Compute the result.
- * When either side is a float the result is a float.
- */
- if (use_float) {
- if (op == '*')
- f1 = f1 * f2;
- else if (op == '/') {
- /* We rely on the floating point library to handle divide
- * by zero to result in "inf" and not a crash. */
- f1 = f2 != 0 ? f1 / f2 : INFINITY;
- } else {
- EMSG(_("E804: Cannot use '%' with Float"));
- return FAIL;
- }
- rettv->v_type = VAR_FLOAT;
- rettv->vval.v_float = f1;
- } else {
- if (op == '*')
- n1 = n1 * n2;
- else if (op == '/') {
- if (n2 == 0) { /* give an error message? */
- if (n1 == 0)
- n1 = -0x7fffffffL - 1L; /* similar to NaN */
- else if (n1 < 0)
- n1 = -0x7fffffffL;
- else
- n1 = 0x7fffffffL;
- } else
- n1 = n1 / n2;
- } else {
- if (n2 == 0) /* give an error message? */
- n1 = 0;
- else
- n1 = n1 % n2;
- }
- rettv->v_type = VAR_NUMBER;
- rettv->vval.v_number = n1;
- }
- }
- }
-
- return OK;
-}
-
-/*
- * Handle sixth level expression:
- * number number constant
- * "string" string constant
- * 'string' literal string constant
- * &option-name option value
- * @r register contents
- * identifier variable value
- * function() function call
- * $VAR environment variable
- * (expression) nested expression
- * [expr, expr] List
- * {key: val, key: val} Dictionary
- *
- * Also handle:
- * ! in front logical NOT
- * - in front unary minus
- * + in front unary plus (ignored)
- * trailing [] subscript in String or List
- * trailing .name entry in Dictionary
- *
- * "arg" must point to the first non-white of the expression.
- * "arg" is advanced to the next non-white after the recognized expression.
- *
- * Return OK or FAIL.
- */
-static int
-eval7 (
- char_u **arg,
- typval_T *rettv,
- int evaluate,
- int want_string /* after "." operator */
-)
-{
- long n;
- int len;
- char_u *s;
- char_u *start_leader, *end_leader;
- int ret = OK;
- char_u *alias;
-
- /*
- * Initialise variable so that clear_tv() can't mistake this for a
- * string and free a string that isn't there.
- */
- rettv->v_type = VAR_UNKNOWN;
-
- /*
- * Skip '!' and '-' characters. They are handled later.
- */
- start_leader = *arg;
- while (**arg == '!' || **arg == '-' || **arg == '+')
- *arg = skipwhite(*arg + 1);
- end_leader = *arg;
-
- switch (**arg) {
- /*
- * Number constant.
- */
- case '0':
- case '1':
- case '2':
- case '3':
- case '4':
- case '5':
- case '6':
- case '7':
- case '8':
- case '9':
- {
- char_u *p = skipdigits(*arg + 1);
- int get_float = FALSE;
-
- /* We accept a float when the format matches
- * "[0-9]\+\.[0-9]\+\([eE][+-]\?[0-9]\+\)\?". This is very
- * strict to avoid backwards compatibility problems.
- * Don't look for a float after the "." operator, so that
- * ":let vers = 1.2.3" doesn't fail. */
- if (!want_string && p[0] == '.' && vim_isdigit(p[1])) {
- get_float = TRUE;
- p = skipdigits(p + 2);
- if (*p == 'e' || *p == 'E') {
- ++p;
- if (*p == '-' || *p == '+')
- ++p;
- if (!vim_isdigit(*p))
- get_float = FALSE;
- else
- p = skipdigits(p + 1);
- }
- if (ASCII_ISALPHA(*p) || *p == '.')
- get_float = FALSE;
- }
- if (get_float) {
- float_T f;
-
- *arg += string2float(*arg, &f);
- if (evaluate) {
- rettv->v_type = VAR_FLOAT;
- rettv->vval.v_float = f;
- }
- } else {
- vim_str2nr(*arg, NULL, &len, TRUE, TRUE, &n, NULL);
- *arg += len;
- if (evaluate) {
- rettv->v_type = VAR_NUMBER;
- rettv->vval.v_number = n;
- }
- }
- break;
- }
-
- /*
- * String constant: "string".
- */
- case '"': ret = get_string_tv(arg, rettv, evaluate);
- break;
-
- /*
- * Literal string constant: 'str''ing'.
- */
- case '\'': ret = get_lit_string_tv(arg, rettv, evaluate);
- break;
-
- /*
- * List: [expr, expr]
- */
- case '[': ret = get_list_tv(arg, rettv, evaluate);
- break;
-
- /*
- * Dictionary: {key: val, key: val}
- */
- case '{': ret = get_dict_tv(arg, rettv, evaluate);
- break;
-
- /*
- * Option value: &name
- */
- case '&': ret = get_option_tv(arg, rettv, evaluate);
- break;
-
- /*
- * Environment variable: $VAR.
- */
- case '$': ret = get_env_tv(arg, rettv, evaluate);
- break;
-
- /*
- * Register contents: @r.
- */
- case '@': ++*arg;
- if (evaluate) {
- rettv->v_type = VAR_STRING;
- rettv->vval.v_string = get_reg_contents(**arg, TRUE, TRUE);
- }
- if (**arg != NUL)
- ++*arg;
- break;
-
- /*
- * nested expression: (expression).
- */
- case '(': *arg = skipwhite(*arg + 1);
- ret = eval1(arg, rettv, evaluate); /* recursive! */
- if (**arg == ')')
- ++*arg;
- else if (ret == OK) {
- EMSG(_("E110: Missing ')'"));
- clear_tv(rettv);
- ret = FAIL;
- }
- break;
-
- default: ret = NOTDONE;
- break;
- }
-
- if (ret == NOTDONE) {
- /*
- * Must be a variable or function name.
- * Can also be a curly-braces kind of name: {expr}.
- */
- s = *arg;
- len = get_name_len(arg, &alias, evaluate, TRUE);
- if (alias != NULL)
- s = alias;
-
- if (len <= 0)
- ret = FAIL;
- else {
- if (**arg == '(') { /* recursive! */
- /* If "s" is the name of a variable of type VAR_FUNC
- * use its contents. */
- s = deref_func_name(s, &len, !evaluate);
-
- /* Invoke the function. */
- ret = get_func_tv(s, len, rettv, arg,
- curwin->w_cursor.lnum, curwin->w_cursor.lnum,
- &len, evaluate, NULL);
-
- /* If evaluate is FALSE rettv->v_type was not set in
- * get_func_tv, but it's needed in handle_subscript() to parse
- * what follows. So set it here. */
- if (rettv->v_type == VAR_UNKNOWN && !evaluate && **arg == '(') {
- rettv->vval.v_string = (char_u *)"";
- rettv->v_type = VAR_FUNC;
- }
-
- /* Stop the expression evaluation when immediately
- * aborting on error, or when an interrupt occurred or
- * an exception was thrown but not caught. */
- if (aborting()) {
- if (ret == OK)
- clear_tv(rettv);
- ret = FAIL;
- }
- } else if (evaluate)
- ret = get_var_tv(s, len, rettv, TRUE, FALSE);
- else
- ret = OK;
- }
- free(alias);
- }
-
- *arg = skipwhite(*arg);
-
- /* Handle following '[', '(' and '.' for expr[expr], expr.name,
- * expr(expr). */
- if (ret == OK)
- ret = handle_subscript(arg, rettv, evaluate, TRUE);
-
- /*
- * Apply logical NOT and unary '-', from right to left, ignore '+'.
- */
- if (ret == OK && evaluate && end_leader > start_leader) {
- int error = FALSE;
- int val = 0;
- float_T f = 0.0;
-
- if (rettv->v_type == VAR_FLOAT)
- f = rettv->vval.v_float;
- else
- val = get_tv_number_chk(rettv, &error);
- if (error) {
- clear_tv(rettv);
- ret = FAIL;
- } else {
- while (end_leader > start_leader) {
- --end_leader;
- if (*end_leader == '!') {
- if (rettv->v_type == VAR_FLOAT)
- f = !f;
- else
- val = !val;
- } else if (*end_leader == '-') {
- if (rettv->v_type == VAR_FLOAT)
- f = -f;
- else
- val = -val;
- }
- }
- if (rettv->v_type == VAR_FLOAT) {
- clear_tv(rettv);
- rettv->vval.v_float = f;
- } else {
- clear_tv(rettv);
- rettv->v_type = VAR_NUMBER;
- rettv->vval.v_number = val;
- }
- }
- }
-
- return ret;
-}
-
-/*
- * Evaluate an "[expr]" or "[expr:expr]" index. Also "dict.key".
- * "*arg" points to the '[' or '.'.
- * Returns FAIL or OK. "*arg" is advanced to after the ']'.
- */
-static int
-eval_index (
- char_u **arg,
- typval_T *rettv,
- int evaluate,
- int verbose /* give error messages */
-)
-{
- int empty1 = FALSE, empty2 = FALSE;
- typval_T var1, var2;
- long n1, n2 = 0;
- long len = -1;
- int range = FALSE;
- char_u *s;
- char_u *key = NULL;
-
- if (rettv->v_type == VAR_FUNC) {
- if (verbose)
- EMSG(_("E695: Cannot index a Funcref"));
- return FAIL;
- } else if (rettv->v_type == VAR_FLOAT) {
- if (verbose)
- EMSG(_(e_float_as_string));
- return FAIL;
- }
-
- if (**arg == '.') {
- /*
- * dict.name
- */
- key = *arg + 1;
- for (len = 0; ASCII_ISALNUM(key[len]) || key[len] == '_'; ++len)
- ;
- if (len == 0)
- return FAIL;
- *arg = skipwhite(key + len);
- } else {
- /*
- * something[idx]
- *
- * Get the (first) variable from inside the [].
- */
- *arg = skipwhite(*arg + 1);
- if (**arg == ':')
- empty1 = TRUE;
- else if (eval1(arg, &var1, evaluate) == FAIL) /* recursive! */
- return FAIL;
- else if (evaluate && get_tv_string_chk(&var1) == NULL) {
- /* not a number or string */
- clear_tv(&var1);
- return FAIL;
- }
-
- /*
- * Get the second variable from inside the [:].
- */
- if (**arg == ':') {
- range = TRUE;
- *arg = skipwhite(*arg + 1);
- if (**arg == ']')
- empty2 = TRUE;
- else if (eval1(arg, &var2, evaluate) == FAIL) { /* recursive! */
- if (!empty1)
- clear_tv(&var1);
- return FAIL;
- } else if (evaluate && get_tv_string_chk(&var2) == NULL) {
- /* not a number or string */
- if (!empty1)
- clear_tv(&var1);
- clear_tv(&var2);
- return FAIL;
- }
- }
-
- /* Check for the ']'. */
- if (**arg != ']') {
- if (verbose)
- EMSG(_(e_missbrac));
- clear_tv(&var1);
- if (range)
- clear_tv(&var2);
- return FAIL;
- }
- *arg = skipwhite(*arg + 1); /* skip the ']' */
- }
-
- if (evaluate) {
- n1 = 0;
- if (!empty1 && rettv->v_type != VAR_DICT) {
- n1 = get_tv_number(&var1);
- clear_tv(&var1);
- }
- if (range) {
- if (empty2)
- n2 = -1;
- else {
- n2 = get_tv_number(&var2);
- clear_tv(&var2);
- }
- }
-
- switch (rettv->v_type) {
- case VAR_NUMBER:
- case VAR_STRING:
- s = get_tv_string(rettv);
- len = (long)STRLEN(s);
- if (range) {
- /* The resulting variable is a substring. If the indexes
- * are out of range the result is empty. */
- if (n1 < 0) {
- n1 = len + n1;
- if (n1 < 0)
- n1 = 0;
- }
- if (n2 < 0)
- n2 = len + n2;
- else if (n2 >= len)
- n2 = len;
- if (n1 >= len || n2 < 0 || n1 > n2)
- s = NULL;
- else
- s = vim_strnsave(s + n1, (int)(n2 - n1 + 1));
- } else {
- /* The resulting variable is a string of a single
- * character. If the index is too big or negative the
- * result is empty. */
- if (n1 >= len || n1 < 0)
- s = NULL;
- else
- s = vim_strnsave(s + n1, 1);
- }
- clear_tv(rettv);
- rettv->v_type = VAR_STRING;
- rettv->vval.v_string = s;
- break;
-
- case VAR_LIST:
- len = list_len(rettv->vval.v_list);
- if (n1 < 0)
- n1 = len + n1;
- if (!empty1 && (n1 < 0 || n1 >= len)) {
- /* For a range we allow invalid values and return an empty
- * list. A list index out of range is an error. */
- if (!range) {
- if (verbose)
- EMSGN(_(e_listidx), n1);
- return FAIL;
- }
- n1 = len;
- }
- if (range) {
- list_T *l;
- listitem_T *item;
-
- if (n2 < 0)
- n2 = len + n2;
- else if (n2 >= len)
- n2 = len - 1;
- if (!empty2 && (n2 < 0 || n2 + 1 < n1))
- n2 = -1;
- l = list_alloc();
- if (l == NULL)
- return FAIL;
- item = list_find(rettv->vval.v_list, n1);
- while (n1++ <= n2) {
- list_append_tv(l, &item->li_tv);
- item = item->li_next;
- }
- clear_tv(rettv);
- rettv->v_type = VAR_LIST;
- rettv->vval.v_list = l;
- ++l->lv_refcount;
- } else {
- copy_tv(&list_find(rettv->vval.v_list, n1)->li_tv, &var1);
- clear_tv(rettv);
- *rettv = var1;
- }
- break;
-
- case VAR_DICT:
- if (range) {
- if (verbose)
- EMSG(_(e_dictrange));
- if (len == -1)
- clear_tv(&var1);
- return FAIL;
- }
- {
- dictitem_T *item;
-
- if (len == -1) {
- key = get_tv_string(&var1);
- if (*key == NUL) {
- if (verbose)
- EMSG(_(e_emptykey));
- clear_tv(&var1);
- return FAIL;
- }
- }
-
- item = dict_find(rettv->vval.v_dict, key, (int)len);
-
- if (item == NULL && verbose)
- EMSG2(_(e_dictkey), key);
- if (len == -1)
- clear_tv(&var1);
- if (item == NULL)
- return FAIL;
-
- copy_tv(&item->di_tv, &var1);
- clear_tv(rettv);
- *rettv = var1;
- }
- break;
- }
- }
-
- return OK;
-}
-
-/*
- * Get an option value.
- * "arg" points to the '&' or '+' before the option name.
- * "arg" is advanced to character after the option name.
- * Return OK or FAIL.
- */
-static int
-get_option_tv (
- char_u **arg,
- typval_T *rettv, /* when NULL, only check if option exists */
- int evaluate
-)
-{
- char_u *option_end;
- long numval;
- char_u *stringval;
- int opt_type;
- int c;
- int working = (**arg == '+'); /* has("+option") */
- int ret = OK;
- int opt_flags;
-
- /*
- * Isolate the option name and find its value.
- */
- option_end = find_option_end(arg, &opt_flags);
- if (option_end == NULL) {
- if (rettv != NULL)
- EMSG2(_("E112: Option name missing: %s"), *arg);
- return FAIL;
- }
-
- if (!evaluate) {
- *arg = option_end;
- return OK;
- }
-
- c = *option_end;
- *option_end = NUL;
- opt_type = get_option_value(*arg, &numval,
- rettv == NULL ? NULL : &stringval, opt_flags);
-
- if (opt_type == -3) { /* invalid name */
- if (rettv != NULL)
- EMSG2(_("E113: Unknown option: %s"), *arg);
- ret = FAIL;
- } else if (rettv != NULL) {
- if (opt_type == -2) { /* hidden string option */
- rettv->v_type = VAR_STRING;
- rettv->vval.v_string = NULL;
- } else if (opt_type == -1) { /* hidden number option */
- rettv->v_type = VAR_NUMBER;
- rettv->vval.v_number = 0;
- } else if (opt_type == 1) { /* number option */
- rettv->v_type = VAR_NUMBER;
- rettv->vval.v_number = numval;
- } else { /* string option */
- rettv->v_type = VAR_STRING;
- rettv->vval.v_string = stringval;
- }
- } else if (working && (opt_type == -2 || opt_type == -1))
- ret = FAIL;
-
- *option_end = c; /* put back for error messages */
- *arg = option_end;
-
- return ret;
-}
-
-/*
- * Allocate a variable for a string constant.
- * Return OK or FAIL.
- */
-static int get_string_tv(char_u **arg, typval_T *rettv, int evaluate)
-{
- char_u *p;
- char_u *name;
- int extra = 0;
-
- /*
- * Find the end of the string, skipping backslashed characters.
- */
- for (p = *arg + 1; *p != NUL && *p != '"'; mb_ptr_adv(p)) {
- if (*p == '\\' && p[1] != NUL) {
- ++p;
- /* A "\<x>" form occupies at least 4 characters, and produces up
- * to 6 characters: reserve space for 2 extra */
- if (*p == '<')
- extra += 2;
- }
- }
-
- if (*p != '"') {
- EMSG2(_("E114: Missing quote: %s"), *arg);
- return FAIL;
- }
-
- /* If only parsing, set *arg and return here */
- if (!evaluate) {
- *arg = p + 1;
- return OK;
- }
-
- /*
- * Copy the string into allocated memory, handling backslashed
- * characters.
- */
- name = alloc((unsigned)(p - *arg + extra));
- if (name == NULL)
- return FAIL;
- rettv->v_type = VAR_STRING;
- rettv->vval.v_string = name;
-
- for (p = *arg + 1; *p != NUL && *p != '"'; ) {
- if (*p == '\\') {
- switch (*++p) {
- case 'b': *name++ = BS; ++p; break;
- case 'e': *name++ = ESC; ++p; break;
- case 'f': *name++ = FF; ++p; break;
- case 'n': *name++ = NL; ++p; break;
- case 'r': *name++ = CAR; ++p; break;
- case 't': *name++ = TAB; ++p; break;
-
- case 'X': /* hex: "\x1", "\x12" */
- case 'x':
- case 'u': /* Unicode: "\u0023" */
- case 'U':
- if (vim_isxdigit(p[1])) {
- int n, nr;
- int c = toupper(*p);
-
- if (c == 'X')
- n = 2;
- else
- n = 4;
- nr = 0;
- while (--n >= 0 && vim_isxdigit(p[1])) {
- ++p;
- nr = (nr << 4) + hex2nr(*p);
- }
- ++p;
- /* For "\u" store the number according to
- * 'encoding'. */
- if (c != 'X')
- name += (*mb_char2bytes)(nr, name);
- else
- *name++ = nr;
- }
- break;
-
- /* octal: "\1", "\12", "\123" */
- case '0':
- case '1':
- case '2':
- case '3':
- case '4':
- case '5':
- case '6':
- case '7': *name = *p++ - '0';
- if (*p >= '0' && *p <= '7') {
- *name = (*name << 3) + *p++ - '0';
- if (*p >= '0' && *p <= '7')
- *name = (*name << 3) + *p++ - '0';
- }
- ++name;
- break;
-
- /* Special key, e.g.: "\<C-W>" */
- case '<': extra = trans_special(&p, name, TRUE);
- if (extra != 0) {
- name += extra;
- break;
- }
- /* FALLTHROUGH */
-
- default: MB_COPY_CHAR(p, name);
- break;
- }
- } else
- MB_COPY_CHAR(p, name);
-
- }
- *name = NUL;
- *arg = p + 1;
-
- return OK;
-}
-
-/*
- * Allocate a variable for a 'str''ing' constant.
- * Return OK or FAIL.
- */
-static int get_lit_string_tv(char_u **arg, typval_T *rettv, int evaluate)
-{
- char_u *p;
- char_u *str;
- int reduce = 0;
-
- /*
- * Find the end of the string, skipping ''.
- */
- for (p = *arg + 1; *p != NUL; mb_ptr_adv(p)) {
- if (*p == '\'') {
- if (p[1] != '\'')
- break;
- ++reduce;
- ++p;
- }
- }
-
- if (*p != '\'') {
- EMSG2(_("E115: Missing quote: %s"), *arg);
- return FAIL;
- }
-
- /* If only parsing return after setting "*arg" */
- if (!evaluate) {
- *arg = p + 1;
- return OK;
- }
-
- /*
- * Copy the string into allocated memory, handling '' to ' reduction.
- */
- str = alloc((unsigned)((p - *arg) - reduce));
- if (str == NULL)
- return FAIL;
- rettv->v_type = VAR_STRING;
- rettv->vval.v_string = str;
-
- for (p = *arg + 1; *p != NUL; ) {
- if (*p == '\'') {
- if (p[1] != '\'')
- break;
- ++p;
- }
- MB_COPY_CHAR(p, str);
- }
- *str = NUL;
- *arg = p + 1;
-
- return OK;
-}
-
-/*
- * Allocate a variable for a List and fill it from "*arg".
- * Return OK or FAIL.
- */
-static int get_list_tv(char_u **arg, typval_T *rettv, int evaluate)
-{
- list_T *l = NULL;
- typval_T tv;
- listitem_T *item;
-
- if (evaluate) {
- l = list_alloc();
- if (l == NULL)
- return FAIL;
- }
-
- *arg = skipwhite(*arg + 1);
- while (**arg != ']' && **arg != NUL) {
- if (eval1(arg, &tv, evaluate) == FAIL) /* recursive! */
- goto failret;
- if (evaluate) {
- item = listitem_alloc();
- if (item != NULL) {
- item->li_tv = tv;
- item->li_tv.v_lock = 0;
- list_append(l, item);
- } else
- clear_tv(&tv);
- }
-
- if (**arg == ']')
- break;
- if (**arg != ',') {
- EMSG2(_("E696: Missing comma in List: %s"), *arg);
- goto failret;
- }
- *arg = skipwhite(*arg + 1);
- }
-
- if (**arg != ']') {
- EMSG2(_("E697: Missing end of List ']': %s"), *arg);
-failret:
- if (evaluate)
- list_free(l, TRUE);
- return FAIL;
- }
-
- *arg = skipwhite(*arg + 1);
- if (evaluate) {
- rettv->v_type = VAR_LIST;
- rettv->vval.v_list = l;
- ++l->lv_refcount;
- }
-
- return OK;
-}
-
-/*
- * Allocate an empty header for a list.
- * Caller should take care of the reference count.
- */
-list_T *list_alloc(void)
-{
- list_T *list = xcalloc(1, sizeof(list_T));
-
- /* Prepend the list to the list of lists for garbage collection. */
- if (first_list != NULL)
- first_list->lv_used_prev = list;
- list->lv_used_prev = NULL;
- list->lv_used_next = first_list;
- first_list = list;
- return list;
-}
-
-/*
- * Allocate an empty list for a return value.
- */
-static void rettv_list_alloc(typval_T *rettv)
-{
- list_T *l = list_alloc();
- rettv->vval.v_list = l;
- rettv->v_type = VAR_LIST;
- ++l->lv_refcount;
-}
-
-/*
- * Unreference a list: decrement the reference count and free it when it
- * becomes zero.
- */
-void list_unref(list_T *l)
-{
- if (l != NULL && --l->lv_refcount <= 0)
- list_free(l, TRUE);
-}
-
-/*
- * Free a list, including all items it points to.
- * Ignores the reference count.
- */
-void
-list_free (
- list_T *l,
- int recurse /* Free Lists and Dictionaries recursively. */
-)
-{
- listitem_T *item;
-
- /* Remove the list from the list of lists for garbage collection. */
- if (l->lv_used_prev == NULL)
- first_list = l->lv_used_next;
- else
- l->lv_used_prev->lv_used_next = l->lv_used_next;
- if (l->lv_used_next != NULL)
- l->lv_used_next->lv_used_prev = l->lv_used_prev;
-
- for (item = l->lv_first; item != NULL; item = l->lv_first) {
- /* Remove the item before deleting it. */
- l->lv_first = item->li_next;
- if (recurse || (item->li_tv.v_type != VAR_LIST
- && item->li_tv.v_type != VAR_DICT))
- clear_tv(&item->li_tv);
- free(item);
- }
- free(l);
-}
-
-/*
- * Allocate a list item.
- */
-listitem_T *listitem_alloc(void)
-{
- return (listitem_T *)alloc(sizeof(listitem_T));
-}
-
-/*
- * Free a list item. Also clears the value. Does not notify watchers.
- */
-void listitem_free(listitem_T *item)
-{
- clear_tv(&item->li_tv);
- free(item);
-}
-
-/*
- * Remove a list item from a List and free it. Also clears the value.
- */
-void listitem_remove(list_T *l, listitem_T *item)
-{
- list_remove(l, item, item);
- listitem_free(item);
-}
-
-/*
- * Get the number of items in a list.
- */
-static long list_len(list_T *l)
-{
- if (l == NULL)
- return 0L;
- return l->lv_len;
-}
-
-/*
- * Return TRUE when two lists have exactly the same values.
- */
-static int
-list_equal (
- list_T *l1,
- list_T *l2,
- int ic, /* ignore case for strings */
- int recursive /* TRUE when used recursively */
-)
-{
- listitem_T *item1, *item2;
-
- if (l1 == NULL || l2 == NULL)
- return FALSE;
- if (l1 == l2)
- return TRUE;
- if (list_len(l1) != list_len(l2))
- return FALSE;
-
- for (item1 = l1->lv_first, item2 = l2->lv_first;
- item1 != NULL && item2 != NULL;
- item1 = item1->li_next, item2 = item2->li_next)
- if (!tv_equal(&item1->li_tv, &item2->li_tv, ic, recursive))
- return FALSE;
- return item1 == NULL && item2 == NULL;
-}
-
-#if defined(PROTO)
-/*
- * Return the dictitem that an entry in a hashtable points to.
- */
-dictitem_T *dict_lookup(hashitem_T *hi)
-{
- return HI2DI(hi);
-}
-#endif
-
-dictitem_T * dict_lookup(hashitem_T *hi)
-{
- return HI2DI(hi);
-}
-
-/*
- * Return TRUE when two dictionaries have exactly the same key/values.
- */
-static int
-dict_equal (
- dict_T *d1,
- dict_T *d2,
- int ic, /* ignore case for strings */
- int recursive /* TRUE when used recursively */
-)
-{
- hashitem_T *hi;
- dictitem_T *item2;
- int todo;
-
- if (d1 == NULL || d2 == NULL)
- return FALSE;
- if (d1 == d2)
- return TRUE;
- if (dict_len(d1) != dict_len(d2))
- return FALSE;
-
- todo = (int)d1->dv_hashtab.ht_used;
- for (hi = d1->dv_hashtab.ht_array; todo > 0; ++hi) {
- if (!HASHITEM_EMPTY(hi)) {
- item2 = dict_find(d2, hi->hi_key, -1);
- if (item2 == NULL)
- return FALSE;
- if (!tv_equal(&HI2DI(hi)->di_tv, &item2->di_tv, ic, recursive))
- return FALSE;
- --todo;
- }
- }
- return TRUE;
-}
-
-static int tv_equal_recurse_limit;
-
-/*
- * Return TRUE if "tv1" and "tv2" have the same value.
- * Compares the items just like "==" would compare them, but strings and
- * numbers are different. Floats and numbers are also different.
- */
-static int
-tv_equal (
- typval_T *tv1,
- typval_T *tv2,
- int ic, /* ignore case */
- int recursive /* TRUE when used recursively */
-)
-{
- char_u buf1[NUMBUFLEN], buf2[NUMBUFLEN];
- char_u *s1, *s2;
- static int recursive_cnt = 0; /* catch recursive loops */
- int r;
-
- if (tv1->v_type != tv2->v_type)
- return FALSE;
-
- /* Catch lists and dicts that have an endless loop by limiting
- * recursiveness to a limit. We guess they are equal then.
- * A fixed limit has the problem of still taking an awful long time.
- * Reduce the limit every time running into it. That should work fine for
- * deeply linked structures that are not recursively linked and catch
- * recursiveness quickly. */
- if (!recursive)
- tv_equal_recurse_limit = 1000;
- if (recursive_cnt >= tv_equal_recurse_limit) {
- --tv_equal_recurse_limit;
- return TRUE;
- }
-
- switch (tv1->v_type) {
- case VAR_LIST:
- ++recursive_cnt;
- r = list_equal(tv1->vval.v_list, tv2->vval.v_list, ic, TRUE);
- --recursive_cnt;
- return r;
-
- case VAR_DICT:
- ++recursive_cnt;
- r = dict_equal(tv1->vval.v_dict, tv2->vval.v_dict, ic, TRUE);
- --recursive_cnt;
- return r;
-
- case VAR_FUNC:
- return tv1->vval.v_string != NULL
- && tv2->vval.v_string != NULL
- && STRCMP(tv1->vval.v_string, tv2->vval.v_string) == 0;
-
- case VAR_NUMBER:
- return tv1->vval.v_number == tv2->vval.v_number;
-
- case VAR_FLOAT:
- return tv1->vval.v_float == tv2->vval.v_float;
-
- case VAR_STRING:
- s1 = get_tv_string_buf(tv1, buf1);
- s2 = get_tv_string_buf(tv2, buf2);
- return (ic ? MB_STRICMP(s1, s2) : STRCMP(s1, s2)) == 0;
- }
-
- EMSG2(_(e_intern2), "tv_equal()");
- return TRUE;
-}
-
-/*
- * Locate item with index "n" in list "l" and return it.
- * A negative index is counted from the end; -1 is the last item.
- * Returns NULL when "n" is out of range.
- */
-listitem_T *list_find(list_T *l, long n)
-{
- listitem_T *item;
- long idx;
-
- if (l == NULL)
- return NULL;
-
- /* Negative index is relative to the end. */
- if (n < 0)
- n = l->lv_len + n;
-
- /* Check for index out of range. */
- if (n < 0 || n >= l->lv_len)
- return NULL;
-
- /* When there is a cached index may start search from there. */
- if (l->lv_idx_item != NULL) {
- if (n < l->lv_idx / 2) {
- /* closest to the start of the list */
- item = l->lv_first;
- idx = 0;
- } else if (n > (l->lv_idx + l->lv_len) / 2) {
- /* closest to the end of the list */
- item = l->lv_last;
- idx = l->lv_len - 1;
- } else {
- /* closest to the cached index */
- item = l->lv_idx_item;
- idx = l->lv_idx;
- }
- } else {
- if (n < l->lv_len / 2) {
- /* closest to the start of the list */
- item = l->lv_first;
- idx = 0;
- } else {
- /* closest to the end of the list */
- item = l->lv_last;
- idx = l->lv_len - 1;
- }
- }
-
- while (n > idx) {
- /* search forward */
- item = item->li_next;
- ++idx;
- }
- while (n < idx) {
- /* search backward */
- item = item->li_prev;
- --idx;
- }
-
- /* cache the used index */
- l->lv_idx = idx;
- l->lv_idx_item = item;
-
- return item;
-}
-
-/*
- * Get list item "l[idx]" as a number.
- */
-static long
-list_find_nr (
- list_T *l,
- long idx,
- int *errorp /* set to TRUE when something wrong */
-)
-{
- listitem_T *li;
-
- li = list_find(l, idx);
- if (li == NULL) {
- if (errorp != NULL)
- *errorp = TRUE;
- return -1L;
- }
- return get_tv_number_chk(&li->li_tv, errorp);
-}
-
-/*
- * Get list item "l[idx - 1]" as a string. Returns NULL for failure.
- */
-char_u *list_find_str(list_T *l, long idx)
-{
- listitem_T *li;
-
- li = list_find(l, idx - 1);
- if (li == NULL) {
- EMSGN(_(e_listidx), idx);
- return NULL;
- }
- return get_tv_string(&li->li_tv);
-}
-
-/*
- * Locate "item" list "l" and return its index.
- * Returns -1 when "item" is not in the list.
- */
-static long list_idx_of_item(list_T *l, listitem_T *item)
-{
- long idx = 0;
- listitem_T *li;
-
- if (l == NULL)
- return -1;
- idx = 0;
- for (li = l->lv_first; li != NULL && li != item; li = li->li_next)
- ++idx;
- if (li == NULL)
- return -1;
- return idx;
-}
-
-/*
- * Append item "item" to the end of list "l".
- */
-void list_append(list_T *l, listitem_T *item)
-{
- if (l->lv_last == NULL) {
- /* empty list */
- l->lv_first = item;
- l->lv_last = item;
- item->li_prev = NULL;
- } else {
- l->lv_last->li_next = item;
- item->li_prev = l->lv_last;
- l->lv_last = item;
- }
- ++l->lv_len;
- item->li_next = NULL;
-}
-
-/*
- * Append typval_T "tv" to the end of list "l".
- */
-void list_append_tv(list_T *l, typval_T *tv)
-{
- listitem_T *li = listitem_alloc();
- copy_tv(tv, &li->li_tv);
- list_append(l, li);
-}
-
-/*
- * Add a dictionary to a list. Used by getqflist().
- */
-void list_append_dict(list_T *list, dict_T *dict)
-{
- listitem_T *li = listitem_alloc();
-
- li->li_tv.v_type = VAR_DICT;
- li->li_tv.v_lock = 0;
- li->li_tv.vval.v_dict = dict;
- list_append(list, li);
- ++dict->dv_refcount;
-}
-
-/*
- * Make a copy of "str" and append it as an item to list "l".
- * When "len" >= 0 use "str[len]".
- */
-void list_append_string(list_T *l, char_u *str, int len)
-{
- listitem_T *li = listitem_alloc();
-
- list_append(l, li);
- li->li_tv.v_type = VAR_STRING;
- li->li_tv.v_lock = 0;
-
- if (str == NULL) {
- li->li_tv.vval.v_string = NULL;
- } else {
- li->li_tv.vval.v_string = (len >= 0) ? vim_strnsave(str, len)
- : vim_strsave(str);
- }
-}
-
-/*
- * Append "n" to list "l".
- */
-static void list_append_number(list_T *l, varnumber_T n)
-{
- listitem_T *li = listitem_alloc();
- li->li_tv.v_type = VAR_NUMBER;
- li->li_tv.v_lock = 0;
- li->li_tv.vval.v_number = n;
- list_append(l, li);
-}
-
-/*
- * Insert typval_T "tv" in list "l" before "item".
- * If "item" is NULL append at the end.
- * Return FAIL when out of memory.
- */
-int list_insert_tv(list_T *l, typval_T *tv, listitem_T *item)
-{
- listitem_T *ni = listitem_alloc();
-
- if (ni == NULL)
- return FAIL;
- copy_tv(tv, &ni->li_tv);
- list_insert(l, ni, item);
- return OK;
-}
-
-void list_insert(list_T *l, listitem_T *ni, listitem_T *item)
-{
- if (item == NULL)
- /* Append new item at end of list. */
- list_append(l, ni);
- else {
- /* Insert new item before existing item. */
- ni->li_prev = item->li_prev;
- ni->li_next = item;
- if (item->li_prev == NULL) {
- l->lv_first = ni;
- ++l->lv_idx;
- } else {
- item->li_prev->li_next = ni;
- l->lv_idx_item = NULL;
- }
- item->li_prev = ni;
- ++l->lv_len;
- }
-}
-
-/*
- * Extend "l1" with "l2".
- * If "bef" is NULL append at the end, otherwise insert before this item.
- * Returns FAIL when out of memory.
- */
-static int list_extend(list_T *l1, list_T *l2, listitem_T *bef)
-{
- listitem_T *item;
- int todo = l2->lv_len;
-
- /* We also quit the loop when we have inserted the original item count of
- * the list, avoid a hang when we extend a list with itself. */
- for (item = l2->lv_first; item != NULL && --todo >= 0; item = item->li_next)
- if (list_insert_tv(l1, &item->li_tv, bef) == FAIL)
- return FAIL;
- return OK;
-}
-
-/*
- * Concatenate lists "l1" and "l2" into a new list, stored in "tv".
- * Return FAIL when out of memory.
- */
-static int list_concat(list_T *l1, list_T *l2, typval_T *tv)
-{
- list_T *l;
-
- if (l1 == NULL || l2 == NULL)
- return FAIL;
-
- /* make a copy of the first list. */
- l = list_copy(l1, FALSE, 0);
- if (l == NULL)
- return FAIL;
- tv->v_type = VAR_LIST;
- tv->vval.v_list = l;
-
- /* append all items from the second list */
- return list_extend(l, l2, NULL);
-}
-
-/*
- * Make a copy of list "orig". Shallow if "deep" is FALSE.
- * The refcount of the new list is set to 1.
- * See item_copy() for "copyID".
- * Returns NULL when out of memory.
- */
-static list_T *list_copy(list_T *orig, int deep, int copyID)
-{
- list_T *copy;
- listitem_T *item;
- listitem_T *ni;
-
- if (orig == NULL)
- return NULL;
-
- copy = list_alloc();
- if (copy != NULL) {
- if (copyID != 0) {
- /* Do this before adding the items, because one of the items may
- * refer back to this list. */
- orig->lv_copyID = copyID;
- orig->lv_copylist = copy;
- }
- for (item = orig->lv_first; item != NULL && !got_int;
- item = item->li_next) {
- ni = listitem_alloc();
- if (ni == NULL)
- break;
- if (deep) {
- if (item_copy(&item->li_tv, &ni->li_tv, deep, copyID) == FAIL) {
- free(ni);
- break;
- }
- } else
- copy_tv(&item->li_tv, &ni->li_tv);
- list_append(copy, ni);
- }
- ++copy->lv_refcount;
- if (item != NULL) {
- list_unref(copy);
- copy = NULL;
- }
- }
-
- return copy;
-}
-
-/*
- * Remove items "item" to "item2" from list "l".
- * Does not free the listitem or the value!
- */
-void list_remove(list_T *l, listitem_T *item, listitem_T *item2)
-{
- listitem_T *ip;
-
- /* notify watchers */
- for (ip = item; ip != NULL; ip = ip->li_next) {
- --l->lv_len;
- list_fix_watch(l, ip);
- if (ip == item2)
- break;
- }
-
- if (item2->li_next == NULL)
- l->lv_last = item->li_prev;
- else
- item2->li_next->li_prev = item->li_prev;
- if (item->li_prev == NULL)
- l->lv_first = item2->li_next;
- else
- item->li_prev->li_next = item2->li_next;
- l->lv_idx_item = NULL;
-}
-
-/*
- * Return an allocated string with the string representation of a list.
- * May return NULL.
- */
-static char_u *list2string(typval_T *tv, int copyID)
-{
- garray_T ga;
-
- if (tv->vval.v_list == NULL)
- return NULL;
- ga_init(&ga, (int)sizeof(char), 80);
- ga_append(&ga, '[');
- if (list_join(&ga, tv->vval.v_list, (char_u *)", ", FALSE, copyID) == FAIL) {
- free(ga.ga_data);
- return NULL;
- }
- ga_append(&ga, ']');
- ga_append(&ga, NUL);
- return (char_u *)ga.ga_data;
-}
-
-typedef struct join_S {
- char_u *s;
- char_u *tofree;
-} join_T;
-
-static int
-list_join_inner (
- garray_T *gap, /* to store the result in */
- list_T *l,
- char_u *sep,
- int echo_style,
- int copyID,
- garray_T *join_gap /* to keep each list item string */
-)
-{
- int i;
- join_T *p;
- int len;
- int sumlen = 0;
- int first = TRUE;
- char_u *tofree;
- char_u numbuf[NUMBUFLEN];
- listitem_T *item;
- char_u *s;
-
- /* Stringify each item in the list. */
- for (item = l->lv_first; item != NULL && !got_int; item = item->li_next) {
- if (echo_style)
- s = echo_string(&item->li_tv, &tofree, numbuf, copyID);
- else
- s = tv2string(&item->li_tv, &tofree, numbuf, copyID);
- if (s == NULL)
- return FAIL;
-
- len = (int)STRLEN(s);
- sumlen += len;
-
- ga_grow(join_gap, 1);
- p = ((join_T *)join_gap->ga_data) + (join_gap->ga_len++);
- if (tofree != NULL || s != numbuf) {
- p->s = s;
- p->tofree = tofree;
- } else {
- p->s = vim_strnsave(s, len);
- p->tofree = p->s;
- }
-
- line_breakcheck();
- }
-
- /* Allocate result buffer with its total size, avoid re-allocation and
- * multiple copy operations. Add 2 for a tailing ']' and NUL. */
- if (join_gap->ga_len >= 2)
- sumlen += (int)STRLEN(sep) * (join_gap->ga_len - 1);
- ga_grow(gap, sumlen + 2);
-
- for (i = 0; i < join_gap->ga_len && !got_int; ++i) {
- if (first)
- first = FALSE;
- else
- ga_concat(gap, sep);
- p = ((join_T *)join_gap->ga_data) + i;
-
- if (p->s != NULL)
- ga_concat(gap, p->s);
- line_breakcheck();
- }
-
- return OK;
-}
-
-/*
- * Join list "l" into a string in "*gap", using separator "sep".
- * When "echo_style" is TRUE use String as echoed, otherwise as inside a List.
- * Return FAIL or OK.
- */
-static int list_join(garray_T *gap, list_T *l, char_u *sep, int echo_style, int copyID)
-{
- garray_T join_ga;
- int retval;
- join_T *p;
- int i;
-
- ga_init(&join_ga, (int)sizeof(join_T), l->lv_len);
- retval = list_join_inner(gap, l, sep, echo_style, copyID, &join_ga);
-
- /* Dispose each item in join_ga. */
- if (join_ga.ga_data != NULL) {
- p = (join_T *)join_ga.ga_data;
- for (i = 0; i < join_ga.ga_len; ++i) {
- free(p->tofree);
- ++p;
- }
- ga_clear(&join_ga);
- }
-
- return retval;
-}
-
-/*
- * Garbage collection for lists and dictionaries.
- *
- * We use reference counts to be able to free most items right away when they
- * are no longer used. But for composite items it's possible that it becomes
- * unused while the reference count is > 0: When there is a recursive
- * reference. Example:
- * :let l = [1, 2, 3]
- * :let d = {9: l}
- * :let l[1] = d
- *
- * Since this is quite unusual we handle this with garbage collection: every
- * once in a while find out which lists and dicts are not referenced from any
- * variable.
- *
- * Here is a good reference text about garbage collection (refers to Python
- * but it applies to all reference-counting mechanisms):
- * http://python.ca/nas/python/gc/
- */
-
-/*
- * Do garbage collection for lists and dicts.
- * Return TRUE if some memory was freed.
- */
-int garbage_collect(void)
-{
- int copyID;
- buf_T *buf;
- win_T *wp;
- int i;
- funccall_T *fc, **pfc;
- int did_free;
- int did_free_funccal = FALSE;
- tabpage_T *tp;
-
- /* Only do this once. */
- want_garbage_collect = FALSE;
- may_garbage_collect = FALSE;
- garbage_collect_at_exit = FALSE;
-
- /* We advance by two because we add one for items referenced through
- * previous_funccal. */
- current_copyID += COPYID_INC;
- copyID = current_copyID;
-
- /*
- * 1. Go through all accessible variables and mark all lists and dicts
- * with copyID.
- */
-
- /* Don't free variables in the previous_funccal list unless they are only
- * referenced through previous_funccal. This must be first, because if
- * the item is referenced elsewhere the funccal must not be freed. */
- for (fc = previous_funccal; fc != NULL; fc = fc->caller) {
- set_ref_in_ht(&fc->l_vars.dv_hashtab, copyID + 1);
- set_ref_in_ht(&fc->l_avars.dv_hashtab, copyID + 1);
- }
-
- /* script-local variables */
- for (i = 1; i <= ga_scripts.ga_len; ++i)
- set_ref_in_ht(&SCRIPT_VARS(i), copyID);
-
- /* buffer-local variables */
- for (buf = firstbuf; buf != NULL; buf = buf->b_next)
- set_ref_in_item(&buf->b_bufvar.di_tv, copyID);
-
- /* window-local variables */
- FOR_ALL_TAB_WINDOWS(tp, wp)
- set_ref_in_item(&wp->w_winvar.di_tv, copyID);
- if (aucmd_win != NULL)
- set_ref_in_item(&aucmd_win->w_winvar.di_tv, copyID);
-
- /* tabpage-local variables */
- for (tp = first_tabpage; tp != NULL; tp = tp->tp_next)
- set_ref_in_item(&tp->tp_winvar.di_tv, copyID);
-
- /* global variables */
- set_ref_in_ht(&globvarht, copyID);
-
- /* function-local variables */
- for (fc = current_funccal; fc != NULL; fc = fc->caller) {
- set_ref_in_ht(&fc->l_vars.dv_hashtab, copyID);
- set_ref_in_ht(&fc->l_avars.dv_hashtab, copyID);
- }
-
- /* v: vars */
- set_ref_in_ht(&vimvarht, copyID);
-
-
-
-
- /*
- * 2. Free lists and dictionaries that are not referenced.
- */
- did_free = free_unref_items(copyID);
-
- /*
- * 3. Check if any funccal can be freed now.
- */
- for (pfc = &previous_funccal; *pfc != NULL; ) {
- if (can_free_funccal(*pfc, copyID)) {
- fc = *pfc;
- *pfc = fc->caller;
- free_funccal(fc, TRUE);
- did_free = TRUE;
- did_free_funccal = TRUE;
- } else
- pfc = &(*pfc)->caller;
- }
- if (did_free_funccal)
- /* When a funccal was freed some more items might be garbage
- * collected, so run again. */
- (void)garbage_collect();
-
- return did_free;
-}
-
-/*
- * Free lists and dictionaries that are no longer referenced.
- */
-static int free_unref_items(int copyID)
-{
- dict_T *dd;
- list_T *ll;
- int did_free = FALSE;
-
- /*
- * Go through the list of dicts and free items without the copyID.
- */
- for (dd = first_dict; dd != NULL; )
- if ((dd->dv_copyID & COPYID_MASK) != (copyID & COPYID_MASK)) {
- /* Free the Dictionary and ordinary items it contains, but don't
- * recurse into Lists and Dictionaries, they will be in the list
- * of dicts or list of lists. */
- dict_free(dd, FALSE);
- did_free = TRUE;
-
- /* restart, next dict may also have been freed */
- dd = first_dict;
- } else
- dd = dd->dv_used_next;
-
- /*
- * Go through the list of lists and free items without the copyID.
- * But don't free a list that has a watcher (used in a for loop), these
- * are not referenced anywhere.
- */
- for (ll = first_list; ll != NULL; )
- if ((ll->lv_copyID & COPYID_MASK) != (copyID & COPYID_MASK)
- && ll->lv_watch == NULL) {
- /* Free the List and ordinary items it contains, but don't recurse
- * into Lists and Dictionaries, they will be in the list of dicts
- * or list of lists. */
- list_free(ll, FALSE);
- did_free = TRUE;
-
- /* restart, next list may also have been freed */
- ll = first_list;
- } else
- ll = ll->lv_used_next;
-
- return did_free;
-}
-
-/*
- * Mark all lists and dicts referenced through hashtab "ht" with "copyID".
- */
-void set_ref_in_ht(hashtab_T *ht, int copyID)
-{
- int todo;
- hashitem_T *hi;
-
- todo = (int)ht->ht_used;
- for (hi = ht->ht_array; todo > 0; ++hi)
- if (!HASHITEM_EMPTY(hi)) {
- --todo;
- set_ref_in_item(&HI2DI(hi)->di_tv, copyID);
- }
-}
-
-/*
- * Mark all lists and dicts referenced through list "l" with "copyID".
- */
-void set_ref_in_list(list_T *l, int copyID)
-{
- listitem_T *li;
-
- for (li = l->lv_first; li != NULL; li = li->li_next)
- set_ref_in_item(&li->li_tv, copyID);
-}
-
-/*
- * Mark all lists and dicts referenced through typval "tv" with "copyID".
- */
-void set_ref_in_item(typval_T *tv, int copyID)
-{
- dict_T *dd;
- list_T *ll;
-
- switch (tv->v_type) {
- case VAR_DICT:
- dd = tv->vval.v_dict;
- if (dd != NULL && dd->dv_copyID != copyID) {
- /* Didn't see this dict yet. */
- dd->dv_copyID = copyID;
- set_ref_in_ht(&dd->dv_hashtab, copyID);
- }
- break;
-
- case VAR_LIST:
- ll = tv->vval.v_list;
- if (ll != NULL && ll->lv_copyID != copyID) {
- /* Didn't see this list yet. */
- ll->lv_copyID = copyID;
- set_ref_in_list(ll, copyID);
- }
- break;
- }
- return;
-}
-
-/*
- * Allocate an empty header for a dictionary.
- */
-dict_T *dict_alloc(void)
-{
- dict_T *d = xmalloc(sizeof(dict_T));
-
- /* Add the dict to the list of dicts for garbage collection. */
- if (first_dict != NULL)
- first_dict->dv_used_prev = d;
- d->dv_used_next = first_dict;
- d->dv_used_prev = NULL;
- first_dict = d;
-
- hash_init(&d->dv_hashtab);
- d->dv_lock = 0;
- d->dv_scope = 0;
- d->dv_refcount = 0;
- d->dv_copyID = 0;
-
- return d;
-}
-
-/*
- * Allocate an empty dict for a return value.
- * Returns OK or FAIL.
- */
-static int rettv_dict_alloc(typval_T *rettv)
-{
- dict_T *d = dict_alloc();
-
- if (d == NULL)
- return FAIL;
-
- rettv->vval.v_dict = d;
- rettv->v_type = VAR_DICT;
- ++d->dv_refcount;
- return OK;
-}
-
-
-/*
- * Unreference a Dictionary: decrement the reference count and free it when it
- * becomes zero.
- */
-void dict_unref(dict_T *d)
-{
- if (d != NULL && --d->dv_refcount <= 0)
- dict_free(d, TRUE);
-}
-
-/*
- * Free a Dictionary, including all items it contains.
- * Ignores the reference count.
- */
-void
-dict_free (
- dict_T *d,
- int recurse /* Free Lists and Dictionaries recursively. */
-)
-{
- int todo;
- hashitem_T *hi;
- dictitem_T *di;
-
- /* Remove the dict from the list of dicts for garbage collection. */
- if (d->dv_used_prev == NULL)
- first_dict = d->dv_used_next;
- else
- d->dv_used_prev->dv_used_next = d->dv_used_next;
- if (d->dv_used_next != NULL)
- d->dv_used_next->dv_used_prev = d->dv_used_prev;
-
- /* Lock the hashtab, we don't want it to resize while freeing items. */
- hash_lock(&d->dv_hashtab);
- todo = (int)d->dv_hashtab.ht_used;
- for (hi = d->dv_hashtab.ht_array; todo > 0; ++hi) {
- if (!HASHITEM_EMPTY(hi)) {
- /* Remove the item before deleting it, just in case there is
- * something recursive causing trouble. */
- di = HI2DI(hi);
- hash_remove(&d->dv_hashtab, hi);
- if (recurse || (di->di_tv.v_type != VAR_LIST
- && di->di_tv.v_type != VAR_DICT))
- clear_tv(&di->di_tv);
- free(di);
- --todo;
- }
- }
- hash_clear(&d->dv_hashtab);
- free(d);
-}
-
-/*
- * Allocate a Dictionary item.
- * The "key" is copied to the new item.
- * Note that the value of the item "di_tv" still needs to be initialized!
- * Returns NULL when out of memory.
- */
-dictitem_T *dictitem_alloc(char_u *key)
-{
- dictitem_T *di;
-
- di = (dictitem_T *)alloc((unsigned)(sizeof(dictitem_T) + STRLEN(key)));
- if (di != NULL) {
- STRCPY(di->di_key, key);
- di->di_flags = 0;
- }
- return di;
-}
-
-/*
- * Make a copy of a Dictionary item.
- */
-static dictitem_T *dictitem_copy(dictitem_T *org)
-{
- dictitem_T *di;
-
- di = (dictitem_T *)alloc((unsigned)(sizeof(dictitem_T)
- + STRLEN(org->di_key)));
- if (di != NULL) {
- STRCPY(di->di_key, org->di_key);
- di->di_flags = 0;
- copy_tv(&org->di_tv, &di->di_tv);
- }
- return di;
-}
-
-/*
- * Remove item "item" from Dictionary "dict" and free it.
- */
-static void dictitem_remove(dict_T *dict, dictitem_T *item)
-{
- hashitem_T *hi;
-
- hi = hash_find(&dict->dv_hashtab, item->di_key);
- if (HASHITEM_EMPTY(hi))
- EMSG2(_(e_intern2), "dictitem_remove()");
- else
- hash_remove(&dict->dv_hashtab, hi);
- dictitem_free(item);
-}
-
-/*
- * Free a dict item. Also clears the value.
- */
-void dictitem_free(dictitem_T *item)
-{
- clear_tv(&item->di_tv);
- free(item);
-}
-
-/*
- * Make a copy of dict "d". Shallow if "deep" is FALSE.
- * The refcount of the new dict is set to 1.
- * See item_copy() for "copyID".
- * Returns NULL when out of memory.
- */
-static dict_T *dict_copy(dict_T *orig, int deep, int copyID)
-{
- dict_T *copy;
- dictitem_T *di;
- int todo;
- hashitem_T *hi;
-
- if (orig == NULL)
- return NULL;
-
- copy = dict_alloc();
- if (copy != NULL) {
- if (copyID != 0) {
- orig->dv_copyID = copyID;
- orig->dv_copydict = copy;
- }
- todo = (int)orig->dv_hashtab.ht_used;
- for (hi = orig->dv_hashtab.ht_array; todo > 0 && !got_int; ++hi) {
- if (!HASHITEM_EMPTY(hi)) {
- --todo;
-
- di = dictitem_alloc(hi->hi_key);
- if (di == NULL)
- break;
- if (deep) {
- if (item_copy(&HI2DI(hi)->di_tv, &di->di_tv, deep,
- copyID) == FAIL) {
- free(di);
- break;
- }
- } else
- copy_tv(&HI2DI(hi)->di_tv, &di->di_tv);
- if (dict_add(copy, di) == FAIL) {
- dictitem_free(di);
- break;
- }
- }
- }
-
- ++copy->dv_refcount;
- if (todo > 0) {
- dict_unref(copy);
- copy = NULL;
- }
- }
-
- return copy;
-}
-
-/*
- * Add item "item" to Dictionary "d".
- * Returns FAIL when out of memory and when key already exists.
- */
-int dict_add(dict_T *d, dictitem_T *item)
-{
- return hash_add(&d->dv_hashtab, item->di_key);
-}
-
-/*
- * Add a number or string entry to dictionary "d".
- * When "str" is NULL use number "nr", otherwise use "str".
- * Returns FAIL when out of memory and when key already exists.
- */
-int dict_add_nr_str(dict_T *d, char *key, long nr, char_u *str)
-{
- dictitem_T *item;
-
- item = dictitem_alloc((char_u *)key);
- if (item == NULL)
- return FAIL;
- item->di_tv.v_lock = 0;
- if (str == NULL) {
- item->di_tv.v_type = VAR_NUMBER;
- item->di_tv.vval.v_number = nr;
- } else {
- item->di_tv.v_type = VAR_STRING;
- item->di_tv.vval.v_string = vim_strsave(str);
- }
- if (dict_add(d, item) == FAIL) {
- dictitem_free(item);
- return FAIL;
- }
- return OK;
-}
-
-/*
- * Add a list entry to dictionary "d".
- * Returns FAIL when out of memory and when key already exists.
- */
-int dict_add_list(dict_T *d, char *key, list_T *list)
-{
- dictitem_T *item;
-
- item = dictitem_alloc((char_u *)key);
- if (item == NULL)
- return FAIL;
- item->di_tv.v_lock = 0;
- item->di_tv.v_type = VAR_LIST;
- item->di_tv.vval.v_list = list;
- if (dict_add(d, item) == FAIL) {
- dictitem_free(item);
- return FAIL;
- }
- ++list->lv_refcount;
- return OK;
-}
-
-/*
- * Get the number of items in a Dictionary.
- */
-static long dict_len(dict_T *d)
-{
- if (d == NULL)
- return 0L;
- return (long)d->dv_hashtab.ht_used;
-}
-
-/*
- * Find item "key[len]" in Dictionary "d".
- * If "len" is negative use strlen(key).
- * Returns NULL when not found.
- */
-dictitem_T *dict_find(dict_T *d, char_u *key, int len)
-{
-#define AKEYLEN 200
- char_u buf[AKEYLEN];
- char_u *akey;
- char_u *tofree = NULL;
- hashitem_T *hi;
-
- if (len < 0)
- akey = key;
- else if (len >= AKEYLEN) {
- tofree = akey = vim_strnsave(key, len);
- if (akey == NULL)
- return NULL;
- } else {
- /* Avoid a malloc/free by using buf[]. */
- vim_strncpy(buf, key, len);
- akey = buf;
- }
-
- hi = hash_find(&d->dv_hashtab, akey);
- free(tofree);
- if (HASHITEM_EMPTY(hi))
- return NULL;
- return HI2DI(hi);
-}
-
-/*
- * Get a string item from a dictionary.
- * When "save" is TRUE allocate memory for it.
- * Returns NULL if the entry doesn't exist or out of memory.
- */
-char_u *get_dict_string(dict_T *d, char_u *key, int save)
-{
- dictitem_T *di;
- char_u *s;
-
- di = dict_find(d, key, -1);
- if (di == NULL)
- return NULL;
- s = get_tv_string(&di->di_tv);
- if (save && s != NULL)
- s = vim_strsave(s);
- return s;
-}
-
-/*
- * Get a number item from a dictionary.
- * Returns 0 if the entry doesn't exist or out of memory.
- */
-long get_dict_number(dict_T *d, char_u *key)
-{
- dictitem_T *di;
-
- di = dict_find(d, key, -1);
- if (di == NULL)
- return 0;
- return get_tv_number(&di->di_tv);
-}
-
-/*
- * Return an allocated string with the string representation of a Dictionary.
- * May return NULL.
- */
-static char_u *dict2string(typval_T *tv, int copyID)
-{
- garray_T ga;
- int first = TRUE;
- char_u *tofree;
- char_u numbuf[NUMBUFLEN];
- hashitem_T *hi;
- char_u *s;
- dict_T *d;
- int todo;
-
- if ((d = tv->vval.v_dict) == NULL)
- return NULL;
- ga_init(&ga, (int)sizeof(char), 80);
- ga_append(&ga, '{');
-
- todo = (int)d->dv_hashtab.ht_used;
- for (hi = d->dv_hashtab.ht_array; todo > 0 && !got_int; ++hi) {
- if (!HASHITEM_EMPTY(hi)) {
- --todo;
-
- if (first)
- first = FALSE;
- else
- ga_concat(&ga, (char_u *)", ");
-
- tofree = string_quote(hi->hi_key, FALSE);
- if (tofree != NULL) {
- ga_concat(&ga, tofree);
- free(tofree);
- }
- ga_concat(&ga, (char_u *)": ");
- s = tv2string(&HI2DI(hi)->di_tv, &tofree, numbuf, copyID);
- if (s != NULL)
- ga_concat(&ga, s);
- free(tofree);
- if (s == NULL)
- break;
- }
- }
- if (todo > 0) {
- free(ga.ga_data);
- return NULL;
- }
-
- ga_append(&ga, '}');
- ga_append(&ga, NUL);
- return (char_u *)ga.ga_data;
-}
-
-/*
- * Allocate a variable for a Dictionary and fill it from "*arg".
- * Return OK or FAIL. Returns NOTDONE for {expr}.
- */
-static int get_dict_tv(char_u **arg, typval_T *rettv, int evaluate)
-{
- dict_T *d = NULL;
- typval_T tvkey;
- typval_T tv;
- char_u *key = NULL;
- dictitem_T *item;
- char_u *start = skipwhite(*arg + 1);
- char_u buf[NUMBUFLEN];
-
- /*
- * First check if it's not a curly-braces thing: {expr}.
- * Must do this without evaluating, otherwise a function may be called
- * twice. Unfortunately this means we need to call eval1() twice for the
- * first item.
- * But {} is an empty Dictionary.
- */
- if (*start != '}') {
- if (eval1(&start, &tv, FALSE) == FAIL) /* recursive! */
- return FAIL;
- if (*start == '}')
- return NOTDONE;
- }
-
- if (evaluate) {
- d = dict_alloc();
- if (d == NULL)
- return FAIL;
- }
- tvkey.v_type = VAR_UNKNOWN;
- tv.v_type = VAR_UNKNOWN;
-
- *arg = skipwhite(*arg + 1);
- while (**arg != '}' && **arg != NUL) {
- if (eval1(arg, &tvkey, evaluate) == FAIL) /* recursive! */
- goto failret;
- if (**arg != ':') {
- EMSG2(_("E720: Missing colon in Dictionary: %s"), *arg);
- clear_tv(&tvkey);
- goto failret;
- }
- if (evaluate) {
- key = get_tv_string_buf_chk(&tvkey, buf);
- if (key == NULL || *key == NUL) {
- /* "key" is NULL when get_tv_string_buf_chk() gave an errmsg */
- if (key != NULL)
- EMSG(_(e_emptykey));
- clear_tv(&tvkey);
- goto failret;
- }
- }
-
- *arg = skipwhite(*arg + 1);
- if (eval1(arg, &tv, evaluate) == FAIL) { /* recursive! */
- if (evaluate)
- clear_tv(&tvkey);
- goto failret;
- }
- if (evaluate) {
- item = dict_find(d, key, -1);
- if (item != NULL) {
- EMSG2(_("E721: Duplicate key in Dictionary: \"%s\""), key);
- clear_tv(&tvkey);
- clear_tv(&tv);
- goto failret;
- }
- item = dictitem_alloc(key);
- clear_tv(&tvkey);
- if (item != NULL) {
- item->di_tv = tv;
- item->di_tv.v_lock = 0;
- if (dict_add(d, item) == FAIL)
- dictitem_free(item);
- }
- }
-
- if (**arg == '}')
- break;
- if (**arg != ',') {
- EMSG2(_("E722: Missing comma in Dictionary: %s"), *arg);
- goto failret;
- }
- *arg = skipwhite(*arg + 1);
- }
-
- if (**arg != '}') {
- EMSG2(_("E723: Missing end of Dictionary '}': %s"), *arg);
-failret:
- if (evaluate)
- dict_free(d, TRUE);
- return FAIL;
- }
-
- *arg = skipwhite(*arg + 1);
- if (evaluate) {
- rettv->v_type = VAR_DICT;
- rettv->vval.v_dict = d;
- ++d->dv_refcount;
- }
-
- return OK;
-}
-
-/*
- * Return a string with the string representation of a variable.
- * If the memory is allocated "tofree" is set to it, otherwise NULL.
- * "numbuf" is used for a number.
- * Does not put quotes around strings, as ":echo" displays values.
- * When "copyID" is not NULL replace recursive lists and dicts with "...".
- * May return NULL.
- */
-static char_u *echo_string(typval_T *tv, char_u **tofree, char_u *numbuf, int copyID)
-{
- static int recurse = 0;
- char_u *r = NULL;
-
- if (recurse >= DICT_MAXNEST) {
- EMSG(_("E724: variable nested too deep for displaying"));
- *tofree = NULL;
- return NULL;
- }
- ++recurse;
-
- switch (tv->v_type) {
- case VAR_FUNC:
- *tofree = NULL;
- r = tv->vval.v_string;
- break;
-
- case VAR_LIST:
- if (tv->vval.v_list == NULL) {
- *tofree = NULL;
- r = NULL;
- } else if (copyID != 0 && tv->vval.v_list->lv_copyID == copyID) {
- *tofree = NULL;
- r = (char_u *)"[...]";
- } else {
- tv->vval.v_list->lv_copyID = copyID;
- *tofree = list2string(tv, copyID);
- r = *tofree;
- }
- break;
-
- case VAR_DICT:
- if (tv->vval.v_dict == NULL) {
- *tofree = NULL;
- r = NULL;
- } else if (copyID != 0 && tv->vval.v_dict->dv_copyID == copyID) {
- *tofree = NULL;
- r = (char_u *)"{...}";
- } else {
- tv->vval.v_dict->dv_copyID = copyID;
- *tofree = dict2string(tv, copyID);
- r = *tofree;
- }
- break;
-
- case VAR_STRING:
- case VAR_NUMBER:
- *tofree = NULL;
- r = get_tv_string_buf(tv, numbuf);
- break;
-
- case VAR_FLOAT:
- *tofree = NULL;
- vim_snprintf((char *)numbuf, NUMBUFLEN, "%g", tv->vval.v_float);
- r = numbuf;
- break;
-
- default:
- EMSG2(_(e_intern2), "echo_string()");
- *tofree = NULL;
- }
-
- --recurse;
- return r;
-}
-
-/*
- * Return a string with the string representation of a variable.
- * If the memory is allocated "tofree" is set to it, otherwise NULL.
- * "numbuf" is used for a number.
- * Puts quotes around strings, so that they can be parsed back by eval().
- * May return NULL.
- */
-static char_u *tv2string(typval_T *tv, char_u **tofree, char_u *numbuf, int copyID)
-{
- switch (tv->v_type) {
- case VAR_FUNC:
- *tofree = string_quote(tv->vval.v_string, TRUE);
- return *tofree;
- case VAR_STRING:
- *tofree = string_quote(tv->vval.v_string, FALSE);
- return *tofree;
- case VAR_FLOAT:
- *tofree = NULL;
- vim_snprintf((char *)numbuf, NUMBUFLEN - 1, "%g", tv->vval.v_float);
- return numbuf;
- case VAR_NUMBER:
- case VAR_LIST:
- case VAR_DICT:
- break;
- default:
- EMSG2(_(e_intern2), "tv2string()");
- }
- return echo_string(tv, tofree, numbuf, copyID);
-}
-
-/*
- * Return string "str" in ' quotes, doubling ' characters.
- * If "str" is NULL an empty string is assumed.
- * If "function" is TRUE make it function('string').
- */
-static char_u *string_quote(char_u *str, int function)
-{
- unsigned len;
- char_u *p, *r, *s;
-
- len = (function ? 13 : 3);
- if (str != NULL) {
- len += (unsigned)STRLEN(str);
- for (p = str; *p != NUL; mb_ptr_adv(p))
- if (*p == '\'')
- ++len;
- }
- s = r = alloc(len);
- if (r != NULL) {
- if (function) {
- STRCPY(r, "function('");
- r += 10;
- } else
- *r++ = '\'';
- if (str != NULL)
- for (p = str; *p != NUL; ) {
- if (*p == '\'')
- *r++ = '\'';
- MB_COPY_CHAR(p, r);
- }
- *r++ = '\'';
- if (function)
- *r++ = ')';
- *r++ = NUL;
- }
- return s;
-}
-
-/*
- * Convert the string "text" to a floating point number.
- * This uses strtod(). setlocale(LC_NUMERIC, "C") has been used to make sure
- * this always uses a decimal point.
- * Returns the length of the text that was consumed.
- */
-static int
-string2float (
- char_u *text,
- float_T *value /* result stored here */
-)
-{
- char *s = (char *)text;
- float_T f;
-
- f = strtod(s, &s);
- *value = f;
- return (int)((char_u *)s - text);
-}
-
-/// Get the value of an environment variable.
-///
-/// If the environment variable was not set, silently assume it is empty.
-///
-/// @param arg Points to the '$'. It is advanced to after the name.
-/// @return FAIL if the name is invalid.
-///
-static int get_env_tv(char_u **arg, typval_T *rettv, int evaluate)
-{
- char_u *name;
- char_u *string = NULL;
- int mustfree = FALSE;
- int len;
- int cc;
-
- ++*arg;
- name = *arg;
- len = get_env_len(arg);
-
- if (evaluate) {
- if (len == 0) {
- return FAIL; // Can't be an environment variable.
- }
- cc = name[len];
- name[len] = NUL;
- // First try vim_getenv(), fast for normal environment vars.
- string = vim_getenv(name, &mustfree);
- if (string != NULL && *string != NUL) {
- if (!mustfree) {
- string = vim_strsave(string);
- }
- } else {
- if (mustfree) {
- free(string);
- }
-
- // Next try expanding things like $VIM and ${HOME}.
- string = expand_env_save(name - 1);
- if (string != NULL && *string == '$') {
- free(string);
- string = NULL;
- }
- }
- name[len] = cc;
- rettv->v_type = VAR_STRING;
- rettv->vval.v_string = string;
- }
-
- return OK;
-}
-
-/*
- * Array with names and number of arguments of all internal functions
- * MUST BE KEPT SORTED IN strcmp() ORDER FOR BINARY SEARCH!
- */
-static struct fst {
- char *f_name; /* function name */
- char f_min_argc; /* minimal number of arguments */
- char f_max_argc; /* maximal number of arguments */
- void (*f_func)(typval_T *args, typval_T *rvar);
- /* implementation of function */
-} functions[] =
-{
- {"abs", 1, 1, f_abs},
- {"acos", 1, 1, f_acos}, /* WJMc */
- {"add", 2, 2, f_add},
- {"and", 2, 2, f_and},
- {"append", 2, 2, f_append},
- {"argc", 0, 0, f_argc},
- {"argidx", 0, 0, f_argidx},
- {"argv", 0, 1, f_argv},
- {"asin", 1, 1, f_asin}, /* WJMc */
- {"atan", 1, 1, f_atan},
- {"atan2", 2, 2, f_atan2},
- {"browse", 4, 4, f_browse},
- {"browsedir", 2, 2, f_browsedir},
- {"bufexists", 1, 1, f_bufexists},
- {"buffer_exists", 1, 1, f_bufexists}, /* obsolete */
- {"buffer_name", 1, 1, f_bufname}, /* obsolete */
- {"buffer_number", 1, 1, f_bufnr}, /* obsolete */
- {"buflisted", 1, 1, f_buflisted},
- {"bufloaded", 1, 1, f_bufloaded},
- {"bufname", 1, 1, f_bufname},
- {"bufnr", 1, 2, f_bufnr},
- {"bufwinnr", 1, 1, f_bufwinnr},
- {"byte2line", 1, 1, f_byte2line},
- {"byteidx", 2, 2, f_byteidx},
- {"byteidxcomp", 2, 2, f_byteidxcomp},
- {"call", 2, 3, f_call},
- {"ceil", 1, 1, f_ceil},
- {"changenr", 0, 0, f_changenr},
- {"char2nr", 1, 2, f_char2nr},
- {"cindent", 1, 1, f_cindent},
- {"clearmatches", 0, 0, f_clearmatches},
- {"col", 1, 1, f_col},
- {"complete", 2, 2, f_complete},
- {"complete_add", 1, 1, f_complete_add},
- {"complete_check", 0, 0, f_complete_check},
- {"confirm", 1, 4, f_confirm},
- {"copy", 1, 1, f_copy},
- {"cos", 1, 1, f_cos},
- {"cosh", 1, 1, f_cosh},
- {"count", 2, 4, f_count},
- {"cscope_connection",0,3, f_cscope_connection},
- {"cursor", 1, 3, f_cursor},
- {"deepcopy", 1, 2, f_deepcopy},
- {"delete", 1, 1, f_delete},
- {"did_filetype", 0, 0, f_did_filetype},
- {"diff_filler", 1, 1, f_diff_filler},
- {"diff_hlID", 2, 2, f_diff_hlID},
- {"empty", 1, 1, f_empty},
- {"escape", 2, 2, f_escape},
- {"eval", 1, 1, f_eval},
- {"eventhandler", 0, 0, f_eventhandler},
- {"executable", 1, 1, f_executable},
- {"exists", 1, 1, f_exists},
- {"exp", 1, 1, f_exp},
- {"expand", 1, 3, f_expand},
- {"extend", 2, 3, f_extend},
- {"feedkeys", 1, 2, f_feedkeys},
- {"file_readable", 1, 1, f_filereadable}, /* obsolete */
- {"filereadable", 1, 1, f_filereadable},
- {"filewritable", 1, 1, f_filewritable},
- {"filter", 2, 2, f_filter},
- {"finddir", 1, 3, f_finddir},
- {"findfile", 1, 3, f_findfile},
- {"float2nr", 1, 1, f_float2nr},
- {"floor", 1, 1, f_floor},
- {"fmod", 2, 2, f_fmod},
- {"fnameescape", 1, 1, f_fnameescape},
- {"fnamemodify", 2, 2, f_fnamemodify},
- {"foldclosed", 1, 1, f_foldclosed},
- {"foldclosedend", 1, 1, f_foldclosedend},
- {"foldlevel", 1, 1, f_foldlevel},
- {"foldtext", 0, 0, f_foldtext},
- {"foldtextresult", 1, 1, f_foldtextresult},
- {"foreground", 0, 0, f_foreground},
- {"function", 1, 1, f_function},
- {"garbagecollect", 0, 1, f_garbagecollect},
- {"get", 2, 3, f_get},
- {"getbufline", 2, 3, f_getbufline},
- {"getbufvar", 2, 3, f_getbufvar},
- {"getchar", 0, 1, f_getchar},
- {"getcharmod", 0, 0, f_getcharmod},
- {"getcmdline", 0, 0, f_getcmdline},
- {"getcmdpos", 0, 0, f_getcmdpos},
- {"getcmdtype", 0, 0, f_getcmdtype},
- {"getcwd", 0, 0, f_getcwd},
- {"getfontname", 0, 1, f_getfontname},
- {"getfperm", 1, 1, f_getfperm},
- {"getfsize", 1, 1, f_getfsize},
- {"getftime", 1, 1, f_getftime},
- {"getftype", 1, 1, f_getftype},
- {"getline", 1, 2, f_getline},
- {"getloclist", 1, 1, f_getqflist},
- {"getmatches", 0, 0, f_getmatches},
- {"getpid", 0, 0, f_getpid},
- {"getpos", 1, 1, f_getpos},
- {"getqflist", 0, 0, f_getqflist},
- {"getreg", 0, 2, f_getreg},
- {"getregtype", 0, 1, f_getregtype},
- {"gettabvar", 2, 3, f_gettabvar},
- {"gettabwinvar", 3, 4, f_gettabwinvar},
- {"getwinposx", 0, 0, f_getwinposx},
- {"getwinposy", 0, 0, f_getwinposy},
- {"getwinvar", 2, 3, f_getwinvar},
- {"glob", 1, 3, f_glob},
- {"globpath", 2, 3, f_globpath},
- {"has", 1, 1, f_has},
- {"has_key", 2, 2, f_has_key},
- {"haslocaldir", 0, 0, f_haslocaldir},
- {"hasmapto", 1, 3, f_hasmapto},
- {"highlightID", 1, 1, f_hlID}, /* obsolete */
- {"highlight_exists",1, 1, f_hlexists}, /* obsolete */
- {"histadd", 2, 2, f_histadd},
- {"histdel", 1, 2, f_histdel},
- {"histget", 1, 2, f_histget},
- {"histnr", 1, 1, f_histnr},
- {"hlID", 1, 1, f_hlID},
- {"hlexists", 1, 1, f_hlexists},
- {"hostname", 0, 0, f_hostname},
- {"iconv", 3, 3, f_iconv},
- {"indent", 1, 1, f_indent},
- {"index", 2, 4, f_index},
- {"input", 1, 3, f_input},
- {"inputdialog", 1, 3, f_inputdialog},
- {"inputlist", 1, 1, f_inputlist},
- {"inputrestore", 0, 0, f_inputrestore},
- {"inputsave", 0, 0, f_inputsave},
- {"inputsecret", 1, 2, f_inputsecret},
- {"insert", 2, 3, f_insert},
- {"invert", 1, 1, f_invert},
- {"isdirectory", 1, 1, f_isdirectory},
- {"islocked", 1, 1, f_islocked},
- {"items", 1, 1, f_items},
- {"jobstart", 2, 3, f_job_start},
- {"jobstop", 1, 1, f_job_stop},
- {"jobwrite", 2, 2, f_job_write},
- {"join", 1, 2, f_join},
- {"keys", 1, 1, f_keys},
- {"last_buffer_nr", 0, 0, f_last_buffer_nr}, /* obsolete */
- {"len", 1, 1, f_len},
- {"libcall", 3, 3, f_libcall},
- {"libcallnr", 3, 3, f_libcallnr},
- {"line", 1, 1, f_line},
- {"line2byte", 1, 1, f_line2byte},
- {"lispindent", 1, 1, f_lispindent},
- {"localtime", 0, 0, f_localtime},
- {"log", 1, 1, f_log},
- {"log10", 1, 1, f_log10},
- {"map", 2, 2, f_map},
- {"maparg", 1, 4, f_maparg},
- {"mapcheck", 1, 3, f_mapcheck},
- {"match", 2, 4, f_match},
- {"matchadd", 2, 4, f_matchadd},
- {"matcharg", 1, 1, f_matcharg},
- {"matchdelete", 1, 1, f_matchdelete},
- {"matchend", 2, 4, f_matchend},
- {"matchlist", 2, 4, f_matchlist},
- {"matchstr", 2, 4, f_matchstr},
- {"max", 1, 1, f_max},
- {"min", 1, 1, f_min},
- {"mkdir", 1, 3, f_mkdir},
- {"mode", 0, 1, f_mode},
- {"nextnonblank", 1, 1, f_nextnonblank},
- {"nr2char", 1, 2, f_nr2char},
- {"or", 2, 2, f_or},
- {"pathshorten", 1, 1, f_pathshorten},
- {"pow", 2, 2, f_pow},
- {"prevnonblank", 1, 1, f_prevnonblank},
- {"printf", 2, 19, f_printf},
- {"pumvisible", 0, 0, f_pumvisible},
- {"range", 1, 3, f_range},
- {"readfile", 1, 3, f_readfile},
- {"reltime", 0, 2, f_reltime},
- {"reltimestr", 1, 1, f_reltimestr},
- {"remote_expr", 2, 3, f_remote_expr},
- {"remote_foreground", 1, 1, f_remote_foreground},
- {"remote_peek", 1, 2, f_remote_peek},
- {"remote_read", 1, 1, f_remote_read},
- {"remote_send", 2, 3, f_remote_send},
- {"remove", 2, 3, f_remove},
- {"rename", 2, 2, f_rename},
- {"repeat", 2, 2, f_repeat},
- {"resolve", 1, 1, f_resolve},
- {"reverse", 1, 1, f_reverse},
- {"round", 1, 1, f_round},
- {"screenattr", 2, 2, f_screenattr},
- {"screenchar", 2, 2, f_screenchar},
- {"screencol", 0, 0, f_screencol},
- {"screenrow", 0, 0, f_screenrow},
- {"search", 1, 4, f_search},
- {"searchdecl", 1, 3, f_searchdecl},
- {"searchpair", 3, 7, f_searchpair},
- {"searchpairpos", 3, 7, f_searchpairpos},
- {"searchpos", 1, 4, f_searchpos},
- {"server2client", 2, 2, f_server2client},
- {"serverlist", 0, 0, f_serverlist},
- {"setbufvar", 3, 3, f_setbufvar},
- {"setcmdpos", 1, 1, f_setcmdpos},
- {"setline", 2, 2, f_setline},
- {"setloclist", 2, 3, f_setloclist},
- {"setmatches", 1, 1, f_setmatches},
- {"setpos", 2, 2, f_setpos},
- {"setqflist", 1, 2, f_setqflist},
- {"setreg", 2, 3, f_setreg},
- {"settabvar", 3, 3, f_settabvar},
- {"settabwinvar", 4, 4, f_settabwinvar},
- {"setwinvar", 3, 3, f_setwinvar},
- {"sha256", 1, 1, f_sha256},
- {"shellescape", 1, 2, f_shellescape},
- {"shiftwidth", 0, 0, f_shiftwidth},
- {"simplify", 1, 1, f_simplify},
- {"sin", 1, 1, f_sin},
- {"sinh", 1, 1, f_sinh},
- {"sort", 1, 3, f_sort},
- {"soundfold", 1, 1, f_soundfold},
- {"spellbadword", 0, 1, f_spellbadword},
- {"spellsuggest", 1, 3, f_spellsuggest},
- {"split", 1, 3, f_split},
- {"sqrt", 1, 1, f_sqrt},
- {"str2float", 1, 1, f_str2float},
- {"str2nr", 1, 2, f_str2nr},
- {"strchars", 1, 1, f_strchars},
- {"strdisplaywidth", 1, 2, f_strdisplaywidth},
- {"strftime", 1, 2, f_strftime},
- {"stridx", 2, 3, f_stridx},
- {"string", 1, 1, f_string},
- {"strlen", 1, 1, f_strlen},
- {"strpart", 2, 3, f_strpart},
- {"strridx", 2, 3, f_strridx},
- {"strtrans", 1, 1, f_strtrans},
- {"strwidth", 1, 1, f_strwidth},
- {"submatch", 1, 2, f_submatch},
- {"substitute", 4, 4, f_substitute},
- {"synID", 3, 3, f_synID},
- {"synIDattr", 2, 3, f_synIDattr},
- {"synIDtrans", 1, 1, f_synIDtrans},
- {"synconcealed", 2, 2, f_synconcealed},
- {"synstack", 2, 2, f_synstack},
- {"system", 1, 2, f_system},
- {"tabpagebuflist", 0, 1, f_tabpagebuflist},
- {"tabpagenr", 0, 1, f_tabpagenr},
- {"tabpagewinnr", 1, 2, f_tabpagewinnr},
- {"tagfiles", 0, 0, f_tagfiles},
- {"taglist", 1, 1, f_taglist},
- {"tan", 1, 1, f_tan},
- {"tanh", 1, 1, f_tanh},
- {"tempname", 0, 0, f_tempname},
- {"test", 1, 1, f_test},
- {"tolower", 1, 1, f_tolower},
- {"toupper", 1, 1, f_toupper},
- {"tr", 3, 3, f_tr},
- {"trunc", 1, 1, f_trunc},
- {"type", 1, 1, f_type},
- {"undofile", 1, 1, f_undofile},
- {"undotree", 0, 0, f_undotree},
- {"uniq", 1, 3, f_uniq},
- {"values", 1, 1, f_values},
- {"virtcol", 1, 1, f_virtcol},
- {"visualmode", 0, 1, f_visualmode},
- {"wildmenumode", 0, 0, f_wildmenumode},
- {"winbufnr", 1, 1, f_winbufnr},
- {"wincol", 0, 0, f_wincol},
- {"winheight", 1, 1, f_winheight},
- {"winline", 0, 0, f_winline},
- {"winnr", 0, 1, f_winnr},
- {"winrestcmd", 0, 0, f_winrestcmd},
- {"winrestview", 1, 1, f_winrestview},
- {"winsaveview", 0, 0, f_winsaveview},
- {"winwidth", 1, 1, f_winwidth},
- {"writefile", 2, 3, f_writefile},
- {"xor", 2, 2, f_xor},
-};
-
-
-/*
- * Function given to ExpandGeneric() to obtain the list of internal
- * or user defined function names.
- */
-char_u *get_function_name(expand_T *xp, int idx)
-{
- static int intidx = -1;
- char_u *name;
-
- if (idx == 0)
- intidx = -1;
- if (intidx < 0) {
- name = get_user_func_name(xp, idx);
- if (name != NULL)
- return name;
- }
- if (++intidx < (int)(sizeof(functions) / sizeof(struct fst))) {
- STRCPY(IObuff, functions[intidx].f_name);
- STRCAT(IObuff, "(");
- if (functions[intidx].f_max_argc == 0)
- STRCAT(IObuff, ")");
- return IObuff;
- }
-
- return NULL;
-}
-
-/*
- * Function given to ExpandGeneric() to obtain the list of internal or
- * user defined variable or function names.
- */
-char_u *get_expr_name(expand_T *xp, int idx)
-{
- static int intidx = -1;
- char_u *name;
-
- if (idx == 0)
- intidx = -1;
- if (intidx < 0) {
- name = get_function_name(xp, idx);
- if (name != NULL)
- return name;
- }
- return get_user_var_name(xp, ++intidx);
-}
-
-
-
-
-/*
- * Find internal function in table above.
- * Return index, or -1 if not found
- */
-static int
-find_internal_func (
- char_u *name /* name of the function */
-)
-{
- int first = 0;
- int last = (int)(sizeof(functions) / sizeof(struct fst)) - 1;
-
- /*
- * Find the function name in the table. Binary search.
- */
- while (first <= last) {
- int x = first + ((unsigned)(last - first)) / 2;
- int cmp = STRCMP(name, functions[x].f_name);
- if (cmp < 0)
- last = x - 1;
- else if (cmp > 0)
- first = x + 1;
- else
- return x;
- }
- return -1;
-}
-
-/*
- * Check if "name" is a variable of type VAR_FUNC. If so, return the function
- * name it contains, otherwise return "name".
- */
-static char_u *deref_func_name(char_u *name, int *lenp, int no_autoload)
-{
- dictitem_T *v;
- int cc;
-
- cc = name[*lenp];
- name[*lenp] = NUL;
- v = find_var(name, NULL, no_autoload);
- name[*lenp] = cc;
- if (v != NULL && v->di_tv.v_type == VAR_FUNC) {
- if (v->di_tv.vval.v_string == NULL) {
- *lenp = 0;
- return (char_u *)""; /* just in case */
- }
- *lenp = (int)STRLEN(v->di_tv.vval.v_string);
- return v->di_tv.vval.v_string;
- }
-
- return name;
-}
-
-/*
- * Allocate a variable for the result of a function.
- * Return OK or FAIL.
- */
-static int
-get_func_tv (
- char_u *name, /* name of the function */
- int len, /* length of "name" */
- typval_T *rettv,
- char_u **arg, /* argument, pointing to the '(' */
- linenr_T firstline, /* first line of range */
- linenr_T lastline, /* last line of range */
- int *doesrange, /* return: function handled range */
- int evaluate,
- dict_T *selfdict /* Dictionary for "self" */
-)
-{
- char_u *argp;
- int ret = OK;
- typval_T argvars[MAX_FUNC_ARGS + 1]; /* vars for arguments */
- int argcount = 0; /* number of arguments found */
-
- /*
- * Get the arguments.
- */
- argp = *arg;
- while (argcount < MAX_FUNC_ARGS) {
- argp = skipwhite(argp + 1); /* skip the '(' or ',' */
- if (*argp == ')' || *argp == ',' || *argp == NUL)
- break;
- if (eval1(&argp, &argvars[argcount], evaluate) == FAIL) {
- ret = FAIL;
- break;
- }
- ++argcount;
- if (*argp != ',')
- break;
- }
- if (*argp == ')')
- ++argp;
- else
- ret = FAIL;
-
- if (ret == OK)
- ret = call_func(name, len, rettv, argcount, argvars,
- firstline, lastline, doesrange, evaluate, selfdict);
- else if (!aborting()) {
- if (argcount == MAX_FUNC_ARGS)
- emsg_funcname(N_("E740: Too many arguments for function %s"), name);
- else
- emsg_funcname(N_("E116: Invalid arguments for function %s"), name);
- }
-
- while (--argcount >= 0)
- clear_tv(&argvars[argcount]);
-
- *arg = skipwhite(argp);
- return ret;
-}
-
-
-/*
- * Call a function with its resolved parameters
- * Return FAIL when the function can't be called, OK otherwise.
- * Also returns OK when an error was encountered while executing the function.
- */
-static int
-call_func (
- char_u *funcname, /* name of the function */
- int len, /* length of "name" */
- typval_T *rettv, /* return value goes here */
- int argcount, /* number of "argvars" */
- typval_T *argvars, /* vars for arguments, must have "argcount"
- PLUS ONE elements! */
- linenr_T firstline, /* first line of range */
- linenr_T lastline, /* last line of range */
- int *doesrange, /* return: function handled range */
- int evaluate,
- dict_T *selfdict /* Dictionary for "self" */
-)
-{
- int ret = FAIL;
-#define ERROR_UNKNOWN 0
-#define ERROR_TOOMANY 1
-#define ERROR_TOOFEW 2
-#define ERROR_SCRIPT 3
-#define ERROR_DICT 4
-#define ERROR_NONE 5
-#define ERROR_OTHER 6
- int error = ERROR_NONE;
- int i;
- int llen;
- ufunc_T *fp;
-#define FLEN_FIXED 40
- char_u fname_buf[FLEN_FIXED + 1];
- char_u *fname;
- char_u *name;
-
- /* Make a copy of the name, if it comes from a funcref variable it could
- * be changed or deleted in the called function. */
- name = vim_strnsave(funcname, len);
- if (name == NULL)
- return ret;
-
- /*
- * In a script change <SID>name() and s:name() to K_SNR 123_name().
- * Change <SNR>123_name() to K_SNR 123_name().
- * Use fname_buf[] when it fits, otherwise allocate memory (slow).
- */
- llen = eval_fname_script(name);
- if (llen > 0) {
- fname_buf[0] = K_SPECIAL;
- fname_buf[1] = KS_EXTRA;
- fname_buf[2] = (int)KE_SNR;
- i = 3;
- if (eval_fname_sid(name)) { /* "<SID>" or "s:" */
- if (current_SID <= 0)
- error = ERROR_SCRIPT;
- else {
- sprintf((char *)fname_buf + 3, "%" PRId64 "_", (int64_t)current_SID);
- i = (int)STRLEN(fname_buf);
- }
- }
- if (i + STRLEN(name + llen) < FLEN_FIXED) {
- STRCPY(fname_buf + i, name + llen);
- fname = fname_buf;
- } else {
- fname = alloc((unsigned)(i + STRLEN(name + llen) + 1));
- if (fname == NULL)
- error = ERROR_OTHER;
- else {
- memmove(fname, fname_buf, (size_t)i);
- STRCPY(fname + i, name + llen);
- }
- }
- } else
- fname = name;
-
- *doesrange = FALSE;
-
-
- /* execute the function if no errors detected and executing */
- if (evaluate && error == ERROR_NONE) {
- char_u *rfname = fname;
-
- /* Ignore "g:" before a function name. */
- if (fname[0] == 'g' && fname[1] == ':') {
- rfname = fname + 2;
- }
-
- rettv->v_type = VAR_NUMBER; /* default rettv is number zero */
- rettv->vval.v_number = 0;
- error = ERROR_UNKNOWN;
-
- if (!builtin_function(rfname, -1)) {
- /*
- * User defined function.
- */
- fp = find_func(rfname);
-
- /* Trigger FuncUndefined event, may load the function. */
- if (fp == NULL
- && apply_autocmds(EVENT_FUNCUNDEFINED, rfname, rfname, TRUE, NULL)
- && !aborting()) {
- /* executed an autocommand, search for the function again */
- fp = find_func(rfname);
- }
- /* Try loading a package. */
- if (fp == NULL && script_autoload(rfname, TRUE) && !aborting()) {
- /* loaded a package, search for the function again */
- fp = find_func(rfname);
- }
-
- if (fp != NULL) {
- if (fp->uf_flags & FC_RANGE)
- *doesrange = TRUE;
- if (argcount < fp->uf_args.ga_len)
- error = ERROR_TOOFEW;
- else if (!fp->uf_varargs && argcount > fp->uf_args.ga_len)
- error = ERROR_TOOMANY;
- else if ((fp->uf_flags & FC_DICT) && selfdict == NULL)
- error = ERROR_DICT;
- else {
- /*
- * Call the user function.
- * Save and restore search patterns, script variables and
- * redo buffer.
- */
- save_search_patterns();
- saveRedobuff();
- ++fp->uf_calls;
- call_user_func(fp, argcount, argvars, rettv,
- firstline, lastline,
- (fp->uf_flags & FC_DICT) ? selfdict : NULL);
- if (--fp->uf_calls <= 0 && isdigit(*fp->uf_name)
- && fp->uf_refcount <= 0)
- /* Function was unreferenced while being used, free it
- * now. */
- func_free(fp);
- restoreRedobuff();
- restore_search_patterns();
- error = ERROR_NONE;
- }
- }
- } else {
- /*
- * Find the function name in the table, call its implementation.
- */
- i = find_internal_func(fname);
- if (i >= 0) {
- if (argcount < functions[i].f_min_argc)
- error = ERROR_TOOFEW;
- else if (argcount > functions[i].f_max_argc)
- error = ERROR_TOOMANY;
- else {
- argvars[argcount].v_type = VAR_UNKNOWN;
- functions[i].f_func(argvars, rettv);
- error = ERROR_NONE;
- }
- }
- }
- /*
- * The function call (or "FuncUndefined" autocommand sequence) might
- * have been aborted by an error, an interrupt, or an explicitly thrown
- * exception that has not been caught so far. This situation can be
- * tested for by calling aborting(). For an error in an internal
- * function or for the "E132" error in call_user_func(), however, the
- * throw point at which the "force_abort" flag (temporarily reset by
- * emsg()) is normally updated has not been reached yet. We need to
- * update that flag first to make aborting() reliable.
- */
- update_force_abort();
- }
- if (error == ERROR_NONE)
- ret = OK;
-
- /*
- * Report an error unless the argument evaluation or function call has been
- * cancelled due to an aborting error, an interrupt, or an exception.
- */
- if (!aborting()) {
- switch (error) {
- case ERROR_UNKNOWN:
- emsg_funcname(N_("E117: Unknown function: %s"), name);
- break;
- case ERROR_TOOMANY:
- emsg_funcname(e_toomanyarg, name);
- break;
- case ERROR_TOOFEW:
- emsg_funcname(N_("E119: Not enough arguments for function: %s"),
- name);
- break;
- case ERROR_SCRIPT:
- emsg_funcname(N_("E120: Using <SID> not in a script context: %s"),
- name);
- break;
- case ERROR_DICT:
- emsg_funcname(N_("E725: Calling dict function without Dictionary: %s"),
- name);
- break;
- }
- }
-
- if (fname != name && fname != fname_buf)
- free(fname);
- free(name);
-
- return ret;
-}
-
-/*
- * Give an error message with a function name. Handle <SNR> things.
- * "ermsg" is to be passed without translation, use N_() instead of _().
- */
-static void emsg_funcname(char *ermsg, char_u *name)
-{
- char_u *p;
-
- if (*name == K_SPECIAL)
- p = concat_str((char_u *)"<SNR>", name + 3);
- else
- p = name;
- EMSG2(_(ermsg), p);
- if (p != name)
- free(p);
-}
-
-/*
- * Return TRUE for a non-zero Number and a non-empty String.
- */
-static int non_zero_arg(typval_T *argvars)
-{
- return (argvars[0].v_type == VAR_NUMBER
- && argvars[0].vval.v_number != 0)
- || (argvars[0].v_type == VAR_STRING
- && argvars[0].vval.v_string != NULL
- && *argvars[0].vval.v_string != NUL);
-}
-
-/*********************************************
- * Implementation of the built-in functions
- */
-
-static int get_float_arg(typval_T *argvars, float_T *f);
-
-/*
- * Get the float value of "argvars[0]" into "f".
- * Returns FAIL when the argument is not a Number or Float.
- */
-static int get_float_arg(typval_T *argvars, float_T *f)
-{
- if (argvars[0].v_type == VAR_FLOAT) {
- *f = argvars[0].vval.v_float;
- return OK;
- }
- if (argvars[0].v_type == VAR_NUMBER) {
- *f = (float_T)argvars[0].vval.v_number;
- return OK;
- }
- EMSG(_("E808: Number or Float required"));
- return FAIL;
-}
-
-/*
- * "abs(expr)" function
- */
-static void f_abs(typval_T *argvars, typval_T *rettv)
-{
- if (argvars[0].v_type == VAR_FLOAT) {
- rettv->v_type = VAR_FLOAT;
- rettv->vval.v_float = fabs(argvars[0].vval.v_float);
- } else {
- varnumber_T n;
- int error = FALSE;
-
- n = get_tv_number_chk(&argvars[0], &error);
- if (error)
- rettv->vval.v_number = -1;
- else if (n > 0)
- rettv->vval.v_number = n;
- else
- rettv->vval.v_number = -n;
- }
-}
-
-/*
- * "acos()" function
- */
-static void f_acos(typval_T *argvars, typval_T *rettv)
-{
- float_T f;
-
- rettv->v_type = VAR_FLOAT;
- if (get_float_arg(argvars, &f) == OK)
- rettv->vval.v_float = acos(f);
- else
- rettv->vval.v_float = 0.0;
-}
-
-/*
- * "add(list, item)" function
- */
-static void f_add(typval_T *argvars, typval_T *rettv)
-{
- list_T *l;
-
- rettv->vval.v_number = 1; /* Default: Failed */
- if (argvars[0].v_type == VAR_LIST) {
- if ((l = argvars[0].vval.v_list) != NULL
- && !tv_check_lock(l->lv_lock, (char_u *)_("add() argument"))) {
- list_append_tv(l, &argvars[1]);
- copy_tv(&argvars[0], rettv);
- }
- } else
- EMSG(_(e_listreq));
-}
-
-/*
- * "and(expr, expr)" function
- */
-static void f_and(typval_T *argvars, typval_T *rettv)
-{
- rettv->vval.v_number = get_tv_number_chk(&argvars[0], NULL)
- & get_tv_number_chk(&argvars[1], NULL);
-}
-
-/*
- * "append(lnum, string/list)" function
- */
-static void f_append(typval_T *argvars, typval_T *rettv)
-{
- long lnum;
- char_u *line;
- list_T *l = NULL;
- listitem_T *li = NULL;
- typval_T *tv;
- long added = 0;
-
- /* When coming here from Insert mode, sync undo, so that this can be
- * undone separately from what was previously inserted. */
- if (u_sync_once == 2) {
- u_sync_once = 1; /* notify that u_sync() was called */
- u_sync(TRUE);
- }
-
- lnum = get_tv_lnum(argvars);
- if (lnum >= 0
- && lnum <= curbuf->b_ml.ml_line_count
- && u_save(lnum, lnum + 1) == OK) {
- if (argvars[1].v_type == VAR_LIST) {
- l = argvars[1].vval.v_list;
- if (l == NULL)
- return;
- li = l->lv_first;
- }
- for (;; ) {
- if (l == NULL)
- tv = &argvars[1]; /* append a string */
- else if (li == NULL)
- break; /* end of list */
- else
- tv = &li->li_tv; /* append item from list */
- line = get_tv_string_chk(tv);
- if (line == NULL) { /* type error */
- rettv->vval.v_number = 1; /* Failed */
- break;
- }
- ml_append(lnum + added, line, (colnr_T)0, FALSE);
- ++added;
- if (l == NULL)
- break;
- li = li->li_next;
- }
-
- appended_lines_mark(lnum, added);
- if (curwin->w_cursor.lnum > lnum)
- curwin->w_cursor.lnum += added;
- } else
- rettv->vval.v_number = 1; /* Failed */
-}
-
-/*
- * "argc()" function
- */
-static void f_argc(typval_T *argvars, typval_T *rettv)
-{
- rettv->vval.v_number = ARGCOUNT;
-}
-
-/*
- * "argidx()" function
- */
-static void f_argidx(typval_T *argvars, typval_T *rettv)
-{
- rettv->vval.v_number = curwin->w_arg_idx;
-}
-
-/*
- * "argv(nr)" function
- */
-static void f_argv(typval_T *argvars, typval_T *rettv)
-{
- int idx;
-
- if (argvars[0].v_type != VAR_UNKNOWN) {
- idx = get_tv_number_chk(&argvars[0], NULL);
- if (idx >= 0 && idx < ARGCOUNT)
- rettv->vval.v_string = vim_strsave(alist_name(&ARGLIST[idx]));
- else
- rettv->vval.v_string = NULL;
- rettv->v_type = VAR_STRING;
- } else {
- rettv_list_alloc(rettv);
- for (idx = 0; idx < ARGCOUNT; ++idx) {
- list_append_string(rettv->vval.v_list, alist_name(&ARGLIST[idx]), -1);
- }
- }
-}
-
-/*
- * "asin()" function
- */
-static void f_asin(typval_T *argvars, typval_T *rettv)
-{
- float_T f;
-
- rettv->v_type = VAR_FLOAT;
- if (get_float_arg(argvars, &f) == OK)
- rettv->vval.v_float = asin(f);
- else
- rettv->vval.v_float = 0.0;
-}
-
-/*
- * "atan()" function
- */
-static void f_atan(typval_T *argvars, typval_T *rettv)
-{
- float_T f;
-
- rettv->v_type = VAR_FLOAT;
- if (get_float_arg(argvars, &f) == OK)
- rettv->vval.v_float = atan(f);
- else
- rettv->vval.v_float = 0.0;
-}
-
-/*
- * "atan2()" function
- */
-static void f_atan2(typval_T *argvars, typval_T *rettv)
-{
- float_T fx, fy;
-
- rettv->v_type = VAR_FLOAT;
- if (get_float_arg(argvars, &fx) == OK
- && get_float_arg(&argvars[1], &fy) == OK)
- rettv->vval.v_float = atan2(fx, fy);
- else
- rettv->vval.v_float = 0.0;
-}
-
-/*
- * "browse(save, title, initdir, default)" function
- */
-static void f_browse(typval_T *argvars, typval_T *rettv)
-{
- rettv->vval.v_string = NULL;
- rettv->v_type = VAR_STRING;
-}
-
-/*
- * "browsedir(title, initdir)" function
- */
-static void f_browsedir(typval_T *argvars, typval_T *rettv)
-{
- rettv->vval.v_string = NULL;
- rettv->v_type = VAR_STRING;
-}
-
-static buf_T *find_buffer(typval_T *avar);
-
-/*
- * Find a buffer by number or exact name.
- */
-static buf_T *find_buffer(typval_T *avar)
-{
- buf_T *buf = NULL;
-
- if (avar->v_type == VAR_NUMBER)
- buf = buflist_findnr((int)avar->vval.v_number);
- else if (avar->v_type == VAR_STRING && avar->vval.v_string != NULL) {
- buf = buflist_findname_exp(avar->vval.v_string);
- if (buf == NULL) {
- /* No full path name match, try a match with a URL or a "nofile"
- * buffer, these don't use the full path. */
- for (buf = firstbuf; buf != NULL; buf = buf->b_next)
- if (buf->b_fname != NULL
- && (path_with_url(buf->b_fname)
- || bt_nofile(buf)
- )
- && STRCMP(buf->b_fname, avar->vval.v_string) == 0)
- break;
- }
- }
- return buf;
-}
-
-/*
- * "bufexists(expr)" function
- */
-static void f_bufexists(typval_T *argvars, typval_T *rettv)
-{
- rettv->vval.v_number = (find_buffer(&argvars[0]) != NULL);
-}
-
-/*
- * "buflisted(expr)" function
- */
-static void f_buflisted(typval_T *argvars, typval_T *rettv)
-{
- buf_T *buf;
-
- buf = find_buffer(&argvars[0]);
- rettv->vval.v_number = (buf != NULL && buf->b_p_bl);
-}
-
-/*
- * "bufloaded(expr)" function
- */
-static void f_bufloaded(typval_T *argvars, typval_T *rettv)
-{
- buf_T *buf;
-
- buf = find_buffer(&argvars[0]);
- rettv->vval.v_number = (buf != NULL && buf->b_ml.ml_mfp != NULL);
-}
-
-static buf_T *get_buf_tv(typval_T *tv, int curtab_only);
-
-/*
- * Get buffer by number or pattern.
- */
-static buf_T *get_buf_tv(typval_T *tv, int curtab_only)
-{
- char_u *name = tv->vval.v_string;
- int save_magic;
- char_u *save_cpo;
- buf_T *buf;
-
- if (tv->v_type == VAR_NUMBER)
- return buflist_findnr((int)tv->vval.v_number);
- if (tv->v_type != VAR_STRING)
- return NULL;
- if (name == NULL || *name == NUL)
- return curbuf;
- if (name[0] == '$' && name[1] == NUL)
- return lastbuf;
-
- /* Ignore 'magic' and 'cpoptions' here to make scripts portable */
- save_magic = p_magic;
- p_magic = TRUE;
- save_cpo = p_cpo;
- p_cpo = (char_u *)"";
-
- buf = buflist_findnr(buflist_findpat(name, name + STRLEN(name),
- TRUE, FALSE, curtab_only));
-
- p_magic = save_magic;
- p_cpo = save_cpo;
-
- /* If not found, try expanding the name, like done for bufexists(). */
- if (buf == NULL)
- buf = find_buffer(tv);
-
- return buf;
-}
-
-/*
- * "bufname(expr)" function
- */
-static void f_bufname(typval_T *argvars, typval_T *rettv)
-{
- buf_T *buf;
-
- (void)get_tv_number(&argvars[0]); /* issue errmsg if type error */
- ++emsg_off;
- buf = get_buf_tv(&argvars[0], FALSE);
- rettv->v_type = VAR_STRING;
- if (buf != NULL && buf->b_fname != NULL)
- rettv->vval.v_string = vim_strsave(buf->b_fname);
- else
- rettv->vval.v_string = NULL;
- --emsg_off;
-}
-
-/*
- * "bufnr(expr)" function
- */
-static void f_bufnr(typval_T *argvars, typval_T *rettv)
-{
- buf_T *buf;
- int error = FALSE;
- char_u *name;
-
- (void)get_tv_number(&argvars[0]); /* issue errmsg if type error */
- ++emsg_off;
- buf = get_buf_tv(&argvars[0], FALSE);
- --emsg_off;
-
- /* If the buffer isn't found and the second argument is not zero create a
- * new buffer. */
- if (buf == NULL
- && argvars[1].v_type != VAR_UNKNOWN
- && get_tv_number_chk(&argvars[1], &error) != 0
- && !error
- && (name = get_tv_string_chk(&argvars[0])) != NULL
- && !error)
- buf = buflist_new(name, NULL, (linenr_T)1, 0);
-
- if (buf != NULL)
- rettv->vval.v_number = buf->b_fnum;
- else
- rettv->vval.v_number = -1;
-}
-
-/*
- * "bufwinnr(nr)" function
- */
-static void f_bufwinnr(typval_T *argvars, typval_T *rettv)
-{
- win_T *wp;
- int winnr = 0;
- buf_T *buf;
-
- (void)get_tv_number(&argvars[0]); /* issue errmsg if type error */
- ++emsg_off;
- buf = get_buf_tv(&argvars[0], TRUE);
- for (wp = firstwin; wp; wp = wp->w_next) {
- ++winnr;
- if (wp->w_buffer == buf)
- break;
- }
- rettv->vval.v_number = (wp != NULL ? winnr : -1);
- --emsg_off;
-}
-
-/*
- * "byte2line(byte)" function
- */
-static void f_byte2line(typval_T *argvars, typval_T *rettv)
-{
- long boff = 0;
-
- boff = get_tv_number(&argvars[0]) - 1; /* boff gets -1 on type error */
- if (boff < 0)
- rettv->vval.v_number = -1;
- else
- rettv->vval.v_number = ml_find_line_or_offset(curbuf,
- (linenr_T)0, &boff);
-}
-
-static void byteidx(typval_T *argvars, typval_T *rettv, int comp)
-{
- char_u *t;
- char_u *str;
- long idx;
-
- str = get_tv_string_chk(&argvars[0]);
- idx = get_tv_number_chk(&argvars[1], NULL);
- rettv->vval.v_number = -1;
- if (str == NULL || idx < 0)
- return;
-
- t = str;
- for (; idx > 0; idx--) {
- if (*t == NUL) /* EOL reached */
- return;
- if (enc_utf8 && comp)
- t += utf_ptr2len(t);
- else
- t += (*mb_ptr2len)(t);
- }
- rettv->vval.v_number = (varnumber_T)(t - str);
-}
-
-/*
- * "byteidx()" function
- */
-static void f_byteidx(typval_T *argvars, typval_T *rettv)
-{
- byteidx(argvars, rettv, FALSE);
-}
-
-/*
- * "byteidxcomp()" function
- */
-static void f_byteidxcomp(typval_T *argvars, typval_T *rettv)
-{
- byteidx(argvars, rettv, TRUE);
-}
-
-int func_call(char_u *name, typval_T *args, dict_T *selfdict, typval_T *rettv)
-{
- listitem_T *item;
- typval_T argv[MAX_FUNC_ARGS + 1];
- int argc = 0;
- int dummy;
- int r = 0;
-
- for (item = args->vval.v_list->lv_first; item != NULL;
- item = item->li_next) {
- if (argc == MAX_FUNC_ARGS) {
- EMSG(_("E699: Too many arguments"));
- break;
- }
- /* Make a copy of each argument. This is needed to be able to set
- * v_lock to VAR_FIXED in the copy without changing the original list.
- */
- copy_tv(&item->li_tv, &argv[argc++]);
- }
-
- if (item == NULL)
- r = call_func(name, (int)STRLEN(name), rettv, argc, argv,
- curwin->w_cursor.lnum, curwin->w_cursor.lnum,
- &dummy, TRUE, selfdict);
-
- /* Free the arguments. */
- while (argc > 0)
- clear_tv(&argv[--argc]);
-
- return r;
-}
-
-/*
- * "call(func, arglist)" function
- */
-static void f_call(typval_T *argvars, typval_T *rettv)
-{
- char_u *func;
- dict_T *selfdict = NULL;
-
- if (argvars[1].v_type != VAR_LIST) {
- EMSG(_(e_listreq));
- return;
- }
- if (argvars[1].vval.v_list == NULL)
- return;
-
- if (argvars[0].v_type == VAR_FUNC)
- func = argvars[0].vval.v_string;
- else
- func = get_tv_string(&argvars[0]);
- if (*func == NUL)
- return; /* type error or empty name */
-
- if (argvars[2].v_type != VAR_UNKNOWN) {
- if (argvars[2].v_type != VAR_DICT) {
- EMSG(_(e_dictreq));
- return;
- }
- selfdict = argvars[2].vval.v_dict;
- }
-
- (void)func_call(func, &argvars[1], selfdict, rettv);
-}
-
-/*
- * "ceil({float})" function
- */
-static void f_ceil(typval_T *argvars, typval_T *rettv)
-{
- float_T f;
-
- rettv->v_type = VAR_FLOAT;
- if (get_float_arg(argvars, &f) == OK)
- rettv->vval.v_float = ceil(f);
- else
- rettv->vval.v_float = 0.0;
-}
-
-/*
- * "changenr()" function
- */
-static void f_changenr(typval_T *argvars, typval_T *rettv)
-{
- rettv->vval.v_number = curbuf->b_u_seq_cur;
-}
-
-/*
- * "char2nr(string)" function
- */
-static void f_char2nr(typval_T *argvars, typval_T *rettv)
-{
- if (has_mbyte) {
- int utf8 = 0;
-
- if (argvars[1].v_type != VAR_UNKNOWN)
- utf8 = get_tv_number_chk(&argvars[1], NULL);
-
- if (utf8)
- rettv->vval.v_number = (*utf_ptr2char)(get_tv_string(&argvars[0]));
- else
- rettv->vval.v_number = (*mb_ptr2char)(get_tv_string(&argvars[0]));
- } else
- rettv->vval.v_number = get_tv_string(&argvars[0])[0];
-}
-
-/*
- * "cindent(lnum)" function
- */
-static void f_cindent(typval_T *argvars, typval_T *rettv)
-{
- pos_T pos;
- linenr_T lnum;
-
- pos = curwin->w_cursor;
- lnum = get_tv_lnum(argvars);
- if (lnum >= 1 && lnum <= curbuf->b_ml.ml_line_count) {
- curwin->w_cursor.lnum = lnum;
- rettv->vval.v_number = get_c_indent();
- curwin->w_cursor = pos;
- } else
- rettv->vval.v_number = -1;
-}
-
-/*
- * "clearmatches()" function
- */
-static void f_clearmatches(typval_T *argvars, typval_T *rettv)
-{
- clear_matches(curwin);
-}
-
-/*
- * "col(string)" function
- */
-static void f_col(typval_T *argvars, typval_T *rettv)
-{
- colnr_T col = 0;
- pos_T *fp;
- int fnum = curbuf->b_fnum;
-
- fp = var2fpos(&argvars[0], FALSE, &fnum);
- if (fp != NULL && fnum == curbuf->b_fnum) {
- if (fp->col == MAXCOL) {
- /* '> can be MAXCOL, get the length of the line then */
- if (fp->lnum <= curbuf->b_ml.ml_line_count)
- col = (colnr_T)STRLEN(ml_get(fp->lnum)) + 1;
- else
- col = MAXCOL;
- } else {
- col = fp->col + 1;
- /* col(".") when the cursor is on the NUL at the end of the line
- * because of "coladd" can be seen as an extra column. */
- if (virtual_active() && fp == &curwin->w_cursor) {
- char_u *p = ml_get_cursor();
-
- if (curwin->w_cursor.coladd >= (colnr_T)chartabsize(p,
- curwin->w_virtcol - curwin->w_cursor.coladd)) {
- int l;
-
- if (*p != NUL && p[(l = (*mb_ptr2len)(p))] == NUL)
- col += l;
- }
- }
- }
- }
- rettv->vval.v_number = col;
-}
-
-/*
- * "complete()" function
- */
-static void f_complete(typval_T *argvars, typval_T *rettv)
-{
- int startcol;
-
- if ((State & INSERT) == 0) {
- EMSG(_("E785: complete() can only be used in Insert mode"));
- return;
- }
-
- /* Check for undo allowed here, because if something was already inserted
- * the line was already saved for undo and this check isn't done. */
- if (!undo_allowed())
- return;
-
- if (argvars[1].v_type != VAR_LIST || argvars[1].vval.v_list == NULL) {
- EMSG(_(e_invarg));
- return;
- }
-
- startcol = get_tv_number_chk(&argvars[0], NULL);
- if (startcol <= 0)
- return;
-
- set_completion(startcol - 1, argvars[1].vval.v_list);
-}
-
-/*
- * "complete_add()" function
- */
-static void f_complete_add(typval_T *argvars, typval_T *rettv)
-{
- rettv->vval.v_number = ins_compl_add_tv(&argvars[0], 0);
-}
-
-/*
- * "complete_check()" function
- */
-static void f_complete_check(typval_T *argvars, typval_T *rettv)
-{
- int saved = RedrawingDisabled;
-
- RedrawingDisabled = 0;
- ins_compl_check_keys(0);
- rettv->vval.v_number = compl_interrupted;
- RedrawingDisabled = saved;
-}
-
-/*
- * "confirm(message, buttons[, default [, type]])" function
- */
-static void f_confirm(typval_T *argvars, typval_T *rettv)
-{
- char_u *message;
- char_u *buttons = NULL;
- char_u buf[NUMBUFLEN];
- char_u buf2[NUMBUFLEN];
- int def = 1;
- int type = VIM_GENERIC;
- char_u *typestr;
- int error = FALSE;
-
- message = get_tv_string_chk(&argvars[0]);
- if (message == NULL)
- error = TRUE;
- if (argvars[1].v_type != VAR_UNKNOWN) {
- buttons = get_tv_string_buf_chk(&argvars[1], buf);
- if (buttons == NULL)
- error = TRUE;
- if (argvars[2].v_type != VAR_UNKNOWN) {
- def = get_tv_number_chk(&argvars[2], &error);
- if (argvars[3].v_type != VAR_UNKNOWN) {
- typestr = get_tv_string_buf_chk(&argvars[3], buf2);
- if (typestr == NULL)
- error = TRUE;
- else {
- switch (TOUPPER_ASC(*typestr)) {
- case 'E': type = VIM_ERROR; break;
- case 'Q': type = VIM_QUESTION; break;
- case 'I': type = VIM_INFO; break;
- case 'W': type = VIM_WARNING; break;
- case 'G': type = VIM_GENERIC; break;
- }
- }
- }
- }
- }
-
- if (buttons == NULL || *buttons == NUL)
- buttons = (char_u *)_("&Ok");
-
- if (!error)
- rettv->vval.v_number = do_dialog(type, NULL, message, buttons,
- def, NULL, FALSE);
-}
-
-/*
- * "copy()" function
- */
-static void f_copy(typval_T *argvars, typval_T *rettv)
-{
- item_copy(&argvars[0], rettv, FALSE, 0);
-}
-
-/*
- * "cos()" function
- */
-static void f_cos(typval_T *argvars, typval_T *rettv)
-{
- float_T f;
-
- rettv->v_type = VAR_FLOAT;
- if (get_float_arg(argvars, &f) == OK)
- rettv->vval.v_float = cos(f);
- else
- rettv->vval.v_float = 0.0;
-}
-
-/*
- * "cosh()" function
- */
-static void f_cosh(typval_T *argvars, typval_T *rettv)
-{
- float_T f;
-
- rettv->v_type = VAR_FLOAT;
- if (get_float_arg(argvars, &f) == OK)
- rettv->vval.v_float = cosh(f);
- else
- rettv->vval.v_float = 0.0;
-}
-
-/*
- * "count()" function
- */
-static void f_count(typval_T *argvars, typval_T *rettv)
-{
- long n = 0;
- int ic = FALSE;
-
- if (argvars[0].v_type == VAR_LIST) {
- listitem_T *li;
- list_T *l;
- long idx;
-
- if ((l = argvars[0].vval.v_list) != NULL) {
- li = l->lv_first;
- if (argvars[2].v_type != VAR_UNKNOWN) {
- int error = FALSE;
-
- ic = get_tv_number_chk(&argvars[2], &error);
- if (argvars[3].v_type != VAR_UNKNOWN) {
- idx = get_tv_number_chk(&argvars[3], &error);
- if (!error) {
- li = list_find(l, idx);
- if (li == NULL)
- EMSGN(_(e_listidx), idx);
- }
- }
- if (error)
- li = NULL;
- }
-
- for (; li != NULL; li = li->li_next)
- if (tv_equal(&li->li_tv, &argvars[1], ic, FALSE))
- ++n;
- }
- } else if (argvars[0].v_type == VAR_DICT) {
- int todo;
- dict_T *d;
- hashitem_T *hi;
-
- if ((d = argvars[0].vval.v_dict) != NULL) {
- int error = FALSE;
-
- if (argvars[2].v_type != VAR_UNKNOWN) {
- ic = get_tv_number_chk(&argvars[2], &error);
- if (argvars[3].v_type != VAR_UNKNOWN)
- EMSG(_(e_invarg));
- }
-
- todo = error ? 0 : (int)d->dv_hashtab.ht_used;
- for (hi = d->dv_hashtab.ht_array; todo > 0; ++hi) {
- if (!HASHITEM_EMPTY(hi)) {
- --todo;
- if (tv_equal(&HI2DI(hi)->di_tv, &argvars[1], ic, FALSE))
- ++n;
- }
- }
- }
- } else
- EMSG2(_(e_listdictarg), "count()");
- rettv->vval.v_number = n;
-}
-
-/*
- * "cscope_connection([{num} , {dbpath} [, {prepend}]])" function
- *
- * Checks the existence of a cscope connection.
- */
-static void f_cscope_connection(typval_T *argvars, typval_T *rettv)
-{
- int num = 0;
- char_u *dbpath = NULL;
- char_u *prepend = NULL;
- char_u buf[NUMBUFLEN];
-
- if (argvars[0].v_type != VAR_UNKNOWN
- && argvars[1].v_type != VAR_UNKNOWN) {
- num = (int)get_tv_number(&argvars[0]);
- dbpath = get_tv_string(&argvars[1]);
- if (argvars[2].v_type != VAR_UNKNOWN)
- prepend = get_tv_string_buf(&argvars[2], buf);
- }
-
- rettv->vval.v_number = cs_connection(num, dbpath, prepend);
-}
-
-/*
- * "cursor(lnum, col)" function
- *
- * Moves the cursor to the specified line and column.
- * Returns 0 when the position could be set, -1 otherwise.
- */
-static void f_cursor(typval_T *argvars, typval_T *rettv)
-{
- long line, col;
- long coladd = 0;
-
- rettv->vval.v_number = -1;
- if (argvars[1].v_type == VAR_UNKNOWN) {
- pos_T pos;
-
- if (list2fpos(argvars, &pos, NULL) == FAIL)
- return;
- line = pos.lnum;
- col = pos.col;
- coladd = pos.coladd;
- } else {
- line = get_tv_lnum(argvars);
- col = get_tv_number_chk(&argvars[1], NULL);
- if (argvars[2].v_type != VAR_UNKNOWN)
- coladd = get_tv_number_chk(&argvars[2], NULL);
- }
- if (line < 0 || col < 0
- || coladd < 0
- )
- return; /* type error; errmsg already given */
- if (line > 0)
- curwin->w_cursor.lnum = line;
- if (col > 0)
- curwin->w_cursor.col = col - 1;
- curwin->w_cursor.coladd = coladd;
-
- /* Make sure the cursor is in a valid position. */
- check_cursor();
- /* Correct cursor for multi-byte character. */
- if (has_mbyte)
- mb_adjust_cursor();
-
- curwin->w_set_curswant = TRUE;
- rettv->vval.v_number = 0;
-}
-
-/*
- * "deepcopy()" function
- */
-static void f_deepcopy(typval_T *argvars, typval_T *rettv)
-{
- int noref = 0;
-
- if (argvars[1].v_type != VAR_UNKNOWN)
- noref = get_tv_number_chk(&argvars[1], NULL);
- if (noref < 0 || noref > 1)
- EMSG(_(e_invarg));
- else {
- current_copyID += COPYID_INC;
- item_copy(&argvars[0], rettv, TRUE, noref == 0 ? current_copyID : 0);
- }
-}
-
-/*
- * "delete()" function
- */
-static void f_delete(typval_T *argvars, typval_T *rettv)
-{
- if (check_restricted() || check_secure())
- rettv->vval.v_number = -1;
- else
- rettv->vval.v_number = os_remove((char *)get_tv_string(&argvars[0]));
-}
-
-/*
- * "did_filetype()" function
- */
-static void f_did_filetype(typval_T *argvars, typval_T *rettv)
-{
- rettv->vval.v_number = did_filetype;
-}
-
-/*
- * "diff_filler()" function
- */
-static void f_diff_filler(typval_T *argvars, typval_T *rettv)
-{
- rettv->vval.v_number = diff_check_fill(curwin, get_tv_lnum(argvars));
-}
-
-/*
- * "diff_hlID()" function
- */
-static void f_diff_hlID(typval_T *argvars, typval_T *rettv)
-{
- linenr_T lnum = get_tv_lnum(argvars);
- static linenr_T prev_lnum = 0;
- static int changedtick = 0;
- static int fnum = 0;
- static int change_start = 0;
- static int change_end = 0;
- static hlf_T hlID = (hlf_T)0;
- int filler_lines;
- int col;
-
- if (lnum < 0) /* ignore type error in {lnum} arg */
- lnum = 0;
- if (lnum != prev_lnum
- || changedtick != curbuf->b_changedtick
- || fnum != curbuf->b_fnum) {
- /* New line, buffer, change: need to get the values. */
- filler_lines = diff_check(curwin, lnum);
- if (filler_lines < 0) {
- if (filler_lines == -1) {
- change_start = MAXCOL;
- change_end = -1;
- if (diff_find_change(curwin, lnum, &change_start, &change_end))
- hlID = HLF_ADD; /* added line */
- else
- hlID = HLF_CHD; /* changed line */
- } else
- hlID = HLF_ADD; /* added line */
- } else
- hlID = (hlf_T)0;
- prev_lnum = lnum;
- changedtick = curbuf->b_changedtick;
- fnum = curbuf->b_fnum;
- }
-
- if (hlID == HLF_CHD || hlID == HLF_TXD) {
- col = get_tv_number(&argvars[1]) - 1; /* ignore type error in {col} */
- if (col >= change_start && col <= change_end)
- hlID = HLF_TXD; /* changed text */
- else
- hlID = HLF_CHD; /* changed line */
- }
- rettv->vval.v_number = hlID == (hlf_T)0 ? 0 : (int)hlID;
-}
-
-/*
- * "empty({expr})" function
- */
-static void f_empty(typval_T *argvars, typval_T *rettv)
-{
- int n;
-
- switch (argvars[0].v_type) {
- case VAR_STRING:
- case VAR_FUNC:
- n = argvars[0].vval.v_string == NULL
- || *argvars[0].vval.v_string == NUL;
- break;
- case VAR_NUMBER:
- n = argvars[0].vval.v_number == 0;
- break;
- case VAR_FLOAT:
- n = argvars[0].vval.v_float == 0.0;
- break;
- case VAR_LIST:
- n = argvars[0].vval.v_list == NULL
- || argvars[0].vval.v_list->lv_first == NULL;
- break;
- case VAR_DICT:
- n = argvars[0].vval.v_dict == NULL
- || argvars[0].vval.v_dict->dv_hashtab.ht_used == 0;
- break;
- default:
- EMSG2(_(e_intern2), "f_empty()");
- n = 0;
- }
-
- rettv->vval.v_number = n;
-}
-
-/*
- * "escape({string}, {chars})" function
- */
-static void f_escape(typval_T *argvars, typval_T *rettv)
-{
- char_u buf[NUMBUFLEN];
-
- rettv->vval.v_string = vim_strsave_escaped(get_tv_string(&argvars[0]),
- get_tv_string_buf(&argvars[1], buf));
- rettv->v_type = VAR_STRING;
-}
-
-/*
- * "eval()" function
- */
-static void f_eval(typval_T *argvars, typval_T *rettv)
-{
- char_u *s;
-
- s = get_tv_string_chk(&argvars[0]);
- if (s != NULL)
- s = skipwhite(s);
-
- if (s == NULL || eval1(&s, rettv, TRUE) == FAIL) {
- rettv->v_type = VAR_NUMBER;
- rettv->vval.v_number = 0;
- } else if (*s != NUL)
- EMSG(_(e_trailing));
-}
-
-/*
- * "eventhandler()" function
- */
-static void f_eventhandler(typval_T *argvars, typval_T *rettv)
-{
- rettv->vval.v_number = vgetc_busy;
-}
-
-/*
- * "executable()" function
- */
-static void f_executable(typval_T *argvars, typval_T *rettv)
-{
- rettv->vval.v_number = os_can_exe(get_tv_string(&argvars[0]));
-}
-
-/*
- * "exists()" function
- */
-static void f_exists(typval_T *argvars, typval_T *rettv)
-{
- char_u *p;
- char_u *name;
- int n = FALSE;
- int len = 0;
-
- p = get_tv_string(&argvars[0]);
- if (*p == '$') { /* environment variable */
- /* first try "normal" environment variables (fast) */
- if (os_getenv((char *)(p + 1)) != NULL)
- n = TRUE;
- else {
- /* try expanding things like $VIM and ${HOME} */
- p = expand_env_save(p);
- if (p != NULL && *p != '$')
- n = TRUE;
- free(p);
- }
- } else if (*p == '&' || *p == '+') { /* option */
- n = (get_option_tv(&p, NULL, TRUE) == OK);
- if (*skipwhite(p) != NUL)
- n = FALSE; /* trailing garbage */
- } else if (*p == '*') { /* internal or user defined function */
- n = function_exists(p + 1);
- } else if (*p == ':') {
- n = cmd_exists(p + 1);
- } else if (*p == '#') {
- if (p[1] == '#')
- n = autocmd_supported(p + 2);
- else
- n = au_exists(p + 1);
- } else { /* internal variable */
- char_u *tofree;
- typval_T tv;
-
- /* get_name_len() takes care of expanding curly braces */
- name = p;
- len = get_name_len(&p, &tofree, TRUE, FALSE);
- if (len > 0) {
- if (tofree != NULL)
- name = tofree;
- n = (get_var_tv(name, len, &tv, FALSE, TRUE) == OK);
- if (n) {
- /* handle d.key, l[idx], f(expr) */
- n = (handle_subscript(&p, &tv, TRUE, FALSE) == OK);
- if (n)
- clear_tv(&tv);
- }
- }
- if (*p != NUL)
- n = FALSE;
-
- free(tofree);
- }
-
- rettv->vval.v_number = n;
-}
-
-/*
- * "exp()" function
- */
-static void f_exp(typval_T *argvars, typval_T *rettv)
-{
- float_T f;
-
- rettv->v_type = VAR_FLOAT;
- if (get_float_arg(argvars, &f) == OK)
- rettv->vval.v_float = exp(f);
- else
- rettv->vval.v_float = 0.0;
-}
-
-/*
- * "expand()" function
- */
-static void f_expand(typval_T *argvars, typval_T *rettv)
-{
- char_u *s;
- int len;
- char_u *errormsg;
- int options = WILD_SILENT|WILD_USE_NL|WILD_LIST_NOTFOUND;
- expand_T xpc;
- int error = FALSE;
- char_u *result;
-
- rettv->v_type = VAR_STRING;
- if (argvars[1].v_type != VAR_UNKNOWN
- && argvars[2].v_type != VAR_UNKNOWN
- && get_tv_number_chk(&argvars[2], &error)
- && !error) {
- rettv->v_type = VAR_LIST;
- rettv->vval.v_list = NULL;
- }
-
- s = get_tv_string(&argvars[0]);
- if (*s == '%' || *s == '#' || *s == '<') {
- ++emsg_off;
- result = eval_vars(s, s, &len, NULL, &errormsg, NULL);
- --emsg_off;
- if (rettv->v_type == VAR_LIST) {
- rettv_list_alloc(rettv);
- if (result != NULL) {
- list_append_string(rettv->vval.v_list, result, -1);
- }
- } else
- rettv->vval.v_string = result;
- } else {
- /* When the optional second argument is non-zero, don't remove matches
- * for 'wildignore' and don't put matches for 'suffixes' at the end. */
- if (argvars[1].v_type != VAR_UNKNOWN
- && get_tv_number_chk(&argvars[1], &error))
- options |= WILD_KEEP_ALL;
- if (!error) {
- ExpandInit(&xpc);
- xpc.xp_context = EXPAND_FILES;
- if (p_wic)
- options += WILD_ICASE;
- if (rettv->v_type == VAR_STRING)
- rettv->vval.v_string = ExpandOne(&xpc, s, NULL,
- options, WILD_ALL);
- else {
- rettv_list_alloc(rettv);
- ExpandOne(&xpc, s, NULL, options, WILD_ALL_KEEP);
- for (int i = 0; i < xpc.xp_numfiles; i++) {
- list_append_string(rettv->vval.v_list, xpc.xp_files[i], -1);
- }
- ExpandCleanup(&xpc);
- }
- } else
- rettv->vval.v_string = NULL;
- }
-}
-
-/*
- * Go over all entries in "d2" and add them to "d1".
- * When "action" is "error" then a duplicate key is an error.
- * When "action" is "force" then a duplicate key is overwritten.
- * Otherwise duplicate keys are ignored ("action" is "keep").
- */
-void dict_extend(dict_T *d1, dict_T *d2, char_u *action)
-{
- dictitem_T *di1;
- hashitem_T *hi2;
- int todo;
-
- todo = (int)d2->dv_hashtab.ht_used;
- for (hi2 = d2->dv_hashtab.ht_array; todo > 0; ++hi2) {
- if (!HASHITEM_EMPTY(hi2)) {
- --todo;
- di1 = dict_find(d1, hi2->hi_key, -1);
- if (d1->dv_scope != 0) {
- /* Disallow replacing a builtin function in l: and g:.
- * Check the key to be valid when adding to any
- * scope. */
- if (d1->dv_scope == VAR_DEF_SCOPE
- && HI2DI(hi2)->di_tv.v_type == VAR_FUNC
- && var_check_func_name(hi2->hi_key,
- di1 == NULL))
- break;
- if (!valid_varname(hi2->hi_key))
- break;
- }
- if (di1 == NULL) {
- di1 = dictitem_copy(HI2DI(hi2));
- if (di1 != NULL && dict_add(d1, di1) == FAIL)
- dictitem_free(di1);
- } else if (*action == 'e') {
- EMSG2(_("E737: Key already exists: %s"), hi2->hi_key);
- break;
- } else if (*action == 'f' && HI2DI(hi2) != di1) {
- clear_tv(&di1->di_tv);
- copy_tv(&HI2DI(hi2)->di_tv, &di1->di_tv);
- }
- }
- }
-}
-
-/*
- * "extend(list, list [, idx])" function
- * "extend(dict, dict [, action])" function
- */
-static void f_extend(typval_T *argvars, typval_T *rettv)
-{
- char *arg_errmsg = N_("extend() argument");
-
- if (argvars[0].v_type == VAR_LIST && argvars[1].v_type == VAR_LIST) {
- list_T *l1, *l2;
- listitem_T *item;
- long before;
- int error = FALSE;
-
- l1 = argvars[0].vval.v_list;
- l2 = argvars[1].vval.v_list;
- if (l1 != NULL && !tv_check_lock(l1->lv_lock, (char_u *)_(arg_errmsg))
- && l2 != NULL) {
- if (argvars[2].v_type != VAR_UNKNOWN) {
- before = get_tv_number_chk(&argvars[2], &error);
- if (error)
- return; /* type error; errmsg already given */
-
- if (before == l1->lv_len)
- item = NULL;
- else {
- item = list_find(l1, before);
- if (item == NULL) {
- EMSGN(_(e_listidx), before);
- return;
- }
- }
- } else
- item = NULL;
- list_extend(l1, l2, item);
-
- copy_tv(&argvars[0], rettv);
- }
- } else if (argvars[0].v_type == VAR_DICT && argvars[1].v_type ==
- VAR_DICT) {
- dict_T *d1, *d2;
- char_u *action;
- int i;
-
- d1 = argvars[0].vval.v_dict;
- d2 = argvars[1].vval.v_dict;
- if (d1 != NULL && !tv_check_lock(d1->dv_lock, (char_u *)_(arg_errmsg))
- && d2 != NULL) {
- /* Check the third argument. */
- if (argvars[2].v_type != VAR_UNKNOWN) {
- static char *(av[]) = {"keep", "force", "error"};
-
- action = get_tv_string_chk(&argvars[2]);
- if (action == NULL)
- return; /* type error; errmsg already given */
- for (i = 0; i < 3; ++i)
- if (STRCMP(action, av[i]) == 0)
- break;
- if (i == 3) {
- EMSG2(_(e_invarg2), action);
- return;
- }
- } else
- action = (char_u *)"force";
-
- dict_extend(d1, d2, action);
-
- copy_tv(&argvars[0], rettv);
- }
- } else
- EMSG2(_(e_listdictarg), "extend()");
-}
-
-/*
- * "feedkeys()" function
- */
-static void f_feedkeys(typval_T *argvars, typval_T *rettv)
-{
- int remap = TRUE;
- char_u *keys, *flags;
- char_u nbuf[NUMBUFLEN];
- int typed = FALSE;
- char_u *keys_esc;
-
- /* This is not allowed in the sandbox. If the commands would still be
- * executed in the sandbox it would be OK, but it probably happens later,
- * when "sandbox" is no longer set. */
- if (check_secure())
- return;
-
- keys = get_tv_string(&argvars[0]);
- if (*keys != NUL) {
- if (argvars[1].v_type != VAR_UNKNOWN) {
- flags = get_tv_string_buf(&argvars[1], nbuf);
- for (; *flags != NUL; ++flags) {
- switch (*flags) {
- case 'n': remap = FALSE; break;
- case 'm': remap = TRUE; break;
- case 't': typed = TRUE; break;
- }
- }
- }
-
- /* Need to escape K_SPECIAL and CSI before putting the string in the
- * typeahead buffer. */
- keys_esc = vim_strsave_escape_csi(keys);
- if (keys_esc != NULL) {
- ins_typebuf(keys_esc, (remap ? REMAP_YES : REMAP_NONE),
- typebuf.tb_len, !typed, FALSE);
- free(keys_esc);
- if (vgetc_busy)
- typebuf_was_filled = TRUE;
- }
- }
-}
-
-/*
- * "filereadable()" function
- */
-static void f_filereadable(typval_T *argvars, typval_T *rettv)
-{
- int fd;
- char_u *p;
- int n;
-
-#ifndef O_NONBLOCK
-# define O_NONBLOCK 0
-#endif
- p = get_tv_string(&argvars[0]);
- if (*p && !os_isdir(p) && (fd = mch_open((char *)p,
- O_RDONLY | O_NONBLOCK, 0)) >= 0) {
- n = TRUE;
- close(fd);
- } else
- n = FALSE;
-
- rettv->vval.v_number = n;
-}
-
-/*
- * Return 0 for not writable, 1 for writable file, 2 for a dir which we have
- * rights to write into.
- */
-static void f_filewritable(typval_T *argvars, typval_T *rettv)
-{
- char *filename = (char *)get_tv_string(&argvars[0]);
- rettv->vval.v_number = os_file_is_writable(filename);
-}
-
-static void findfilendir(typval_T *argvars, typval_T *rettv,
- int find_what);
-
-static void findfilendir(typval_T *argvars, typval_T *rettv, int find_what)
-{
- char_u *fname;
- char_u *fresult = NULL;
- char_u *path = *curbuf->b_p_path == NUL ? p_path : curbuf->b_p_path;
- char_u *p;
- char_u pathbuf[NUMBUFLEN];
- int count = 1;
- int first = TRUE;
- int error = FALSE;
-
- rettv->vval.v_string = NULL;
- rettv->v_type = VAR_STRING;
-
- fname = get_tv_string(&argvars[0]);
-
- if (argvars[1].v_type != VAR_UNKNOWN) {
- p = get_tv_string_buf_chk(&argvars[1], pathbuf);
- if (p == NULL)
- error = TRUE;
- else {
- if (*p != NUL)
- path = p;
-
- if (argvars[2].v_type != VAR_UNKNOWN)
- count = get_tv_number_chk(&argvars[2], &error);
- }
- }
-
- if (count < 0) {
- rettv_list_alloc(rettv);
- }
-
- if (*fname != NUL && !error) {
- do {
- if (rettv->v_type == VAR_STRING || rettv->v_type == VAR_LIST)
- free(fresult);
- fresult = find_file_in_path_option(first ? fname : NULL,
- first ? (int)STRLEN(fname) : 0,
- 0, first, path,
- find_what,
- curbuf->b_ffname,
- find_what == FINDFILE_DIR
- ? (char_u *)"" : curbuf->b_p_sua);
- first = FALSE;
-
- if (fresult != NULL && rettv->v_type == VAR_LIST)
- list_append_string(rettv->vval.v_list, fresult, -1);
-
- } while ((rettv->v_type == VAR_LIST || --count > 0) && fresult != NULL);
- }
-
- if (rettv->v_type == VAR_STRING)
- rettv->vval.v_string = fresult;
-}
-
-static void filter_map(typval_T *argvars, typval_T *rettv, int map);
-static int filter_map_one(typval_T *tv, char_u *expr, int map, int *remp);
-
-/*
- * Implementation of map() and filter().
- */
-static void filter_map(typval_T *argvars, typval_T *rettv, int map)
-{
- char_u buf[NUMBUFLEN];
- char_u *expr;
- listitem_T *li, *nli;
- list_T *l = NULL;
- dictitem_T *di;
- hashtab_T *ht;
- hashitem_T *hi;
- dict_T *d = NULL;
- typval_T save_val;
- typval_T save_key;
- int rem;
- int todo;
- char_u *ermsg = (char_u *)(map ? "map()" : "filter()");
- char *arg_errmsg = (map ? N_("map() argument")
- : N_("filter() argument"));
- int save_did_emsg;
- int idx = 0;
-
- if (argvars[0].v_type == VAR_LIST) {
- if ((l = argvars[0].vval.v_list) == NULL
- || tv_check_lock(l->lv_lock, (char_u *)_(arg_errmsg)))
- return;
- } else if (argvars[0].v_type == VAR_DICT) {
- if ((d = argvars[0].vval.v_dict) == NULL
- || tv_check_lock(d->dv_lock, (char_u *)_(arg_errmsg)))
- return;
- } else {
- EMSG2(_(e_listdictarg), ermsg);
- return;
- }
-
- expr = get_tv_string_buf_chk(&argvars[1], buf);
- /* On type errors, the preceding call has already displayed an error
- * message. Avoid a misleading error message for an empty string that
- * was not passed as argument. */
- if (expr != NULL) {
- prepare_vimvar(VV_VAL, &save_val);
- expr = skipwhite(expr);
-
- /* We reset "did_emsg" to be able to detect whether an error
- * occurred during evaluation of the expression. */
- save_did_emsg = did_emsg;
- did_emsg = FALSE;
-
- prepare_vimvar(VV_KEY, &save_key);
- if (argvars[0].v_type == VAR_DICT) {
- vimvars[VV_KEY].vv_type = VAR_STRING;
-
- ht = &d->dv_hashtab;
- hash_lock(ht);
- todo = (int)ht->ht_used;
- for (hi = ht->ht_array; todo > 0; ++hi) {
- if (!HASHITEM_EMPTY(hi)) {
- --todo;
- di = HI2DI(hi);
- if (tv_check_lock(di->di_tv.v_lock,
- (char_u *)_(arg_errmsg)))
- break;
- vimvars[VV_KEY].vv_str = vim_strsave(di->di_key);
- if (filter_map_one(&di->di_tv, expr, map, &rem) == FAIL
- || did_emsg)
- break;
- if (!map && rem)
- dictitem_remove(d, di);
- clear_tv(&vimvars[VV_KEY].vv_tv);
- }
- }
- hash_unlock(ht);
- } else {
- vimvars[VV_KEY].vv_type = VAR_NUMBER;
-
- for (li = l->lv_first; li != NULL; li = nli) {
- if (tv_check_lock(li->li_tv.v_lock, (char_u *)_(arg_errmsg)))
- break;
- nli = li->li_next;
- vimvars[VV_KEY].vv_nr = idx;
- if (filter_map_one(&li->li_tv, expr, map, &rem) == FAIL
- || did_emsg)
- break;
- if (!map && rem)
- listitem_remove(l, li);
- ++idx;
- }
- }
-
- restore_vimvar(VV_KEY, &save_key);
- restore_vimvar(VV_VAL, &save_val);
-
- did_emsg |= save_did_emsg;
- }
-
- copy_tv(&argvars[0], rettv);
-}
-
-static int filter_map_one(typval_T *tv, char_u *expr, int map, int *remp)
-{
- typval_T rettv;
- char_u *s;
- int retval = FAIL;
-
- copy_tv(tv, &vimvars[VV_VAL].vv_tv);
- s = expr;
- if (eval1(&s, &rettv, TRUE) == FAIL)
- goto theend;
- if (*s != NUL) { /* check for trailing chars after expr */
- EMSG2(_(e_invexpr2), s);
- goto theend;
- }
- if (map) {
- /* map(): replace the list item value */
- clear_tv(tv);
- rettv.v_lock = 0;
- *tv = rettv;
- } else {
- int error = FALSE;
-
- /* filter(): when expr is zero remove the item */
- *remp = (get_tv_number_chk(&rettv, &error) == 0);
- clear_tv(&rettv);
- /* On type error, nothing has been removed; return FAIL to stop the
- * loop. The error message was given by get_tv_number_chk(). */
- if (error)
- goto theend;
- }
- retval = OK;
-theend:
- clear_tv(&vimvars[VV_VAL].vv_tv);
- return retval;
-}
-
-/*
- * "filter()" function
- */
-static void f_filter(typval_T *argvars, typval_T *rettv)
-{
- filter_map(argvars, rettv, FALSE);
-}
-
-/*
- * "finddir({fname}[, {path}[, {count}]])" function
- */
-static void f_finddir(typval_T *argvars, typval_T *rettv)
-{
- findfilendir(argvars, rettv, FINDFILE_DIR);
-}
-
-/*
- * "findfile({fname}[, {path}[, {count}]])" function
- */
-static void f_findfile(typval_T *argvars, typval_T *rettv)
-{
- findfilendir(argvars, rettv, FINDFILE_FILE);
-}
-
-/*
- * "float2nr({float})" function
- */
-static void f_float2nr(typval_T *argvars, typval_T *rettv)
-{
- float_T f;
-
- if (get_float_arg(argvars, &f) == OK) {
- if (f < -0x7fffffff)
- rettv->vval.v_number = -0x7fffffff;
- else if (f > 0x7fffffff)
- rettv->vval.v_number = 0x7fffffff;
- else
- rettv->vval.v_number = (varnumber_T)f;
- }
-}
-
-/*
- * "floor({float})" function
- */
-static void f_floor(typval_T *argvars, typval_T *rettv)
-{
- float_T f;
-
- rettv->v_type = VAR_FLOAT;
- if (get_float_arg(argvars, &f) == OK)
- rettv->vval.v_float = floor(f);
- else
- rettv->vval.v_float = 0.0;
-}
-
-/*
- * "fmod()" function
- */
-static void f_fmod(typval_T *argvars, typval_T *rettv)
-{
- float_T fx, fy;
-
- rettv->v_type = VAR_FLOAT;
- if (get_float_arg(argvars, &fx) == OK
- && get_float_arg(&argvars[1], &fy) == OK)
- rettv->vval.v_float = fmod(fx, fy);
- else
- rettv->vval.v_float = 0.0;
-}
-
-/*
- * "fnameescape({string})" function
- */
-static void f_fnameescape(typval_T *argvars, typval_T *rettv)
-{
- rettv->vval.v_string = vim_strsave_fnameescape(
- get_tv_string(&argvars[0]), FALSE);
- rettv->v_type = VAR_STRING;
-}
-
-/*
- * "fnamemodify({fname}, {mods})" function
- */
-static void f_fnamemodify(typval_T *argvars, typval_T *rettv)
-{
- char_u *fname;
- char_u *mods;
- int usedlen = 0;
- int len;
- char_u *fbuf = NULL;
- char_u buf[NUMBUFLEN];
-
- fname = get_tv_string_chk(&argvars[0]);
- mods = get_tv_string_buf_chk(&argvars[1], buf);
- if (fname == NULL || mods == NULL)
- fname = NULL;
- else {
- len = (int)STRLEN(fname);
- (void)modify_fname(mods, &usedlen, &fname, &fbuf, &len);
- }
-
- rettv->v_type = VAR_STRING;
- if (fname == NULL)
- rettv->vval.v_string = NULL;
- else
- rettv->vval.v_string = vim_strnsave(fname, len);
- free(fbuf);
-}
-
-static void foldclosed_both(typval_T *argvars, typval_T *rettv, int end);
-
-/*
- * "foldclosed()" function
- */
-static void foldclosed_both(typval_T *argvars, typval_T *rettv, int end)
-{
- linenr_T lnum;
- linenr_T first, last;
-
- lnum = get_tv_lnum(argvars);
- if (lnum >= 1 && lnum <= curbuf->b_ml.ml_line_count) {
- if (hasFoldingWin(curwin, lnum, &first, &last, FALSE, NULL)) {
- if (end)
- rettv->vval.v_number = (varnumber_T)last;
- else
- rettv->vval.v_number = (varnumber_T)first;
- return;
- }
- }
- rettv->vval.v_number = -1;
-}
-
-/*
- * "foldclosed()" function
- */
-static void f_foldclosed(typval_T *argvars, typval_T *rettv)
-{
- foldclosed_both(argvars, rettv, FALSE);
-}
-
-/*
- * "foldclosedend()" function
- */
-static void f_foldclosedend(typval_T *argvars, typval_T *rettv)
-{
- foldclosed_both(argvars, rettv, TRUE);
-}
-
-/*
- * "foldlevel()" function
- */
-static void f_foldlevel(typval_T *argvars, typval_T *rettv)
-{
- linenr_T lnum;
-
- lnum = get_tv_lnum(argvars);
- if (lnum >= 1 && lnum <= curbuf->b_ml.ml_line_count)
- rettv->vval.v_number = foldLevel(lnum);
-}
-
-/*
- * "foldtext()" function
- */
-static void f_foldtext(typval_T *argvars, typval_T *rettv)
-{
- linenr_T lnum;
- char_u *s;
- char_u *r;
- int len;
- char *txt;
-
- rettv->v_type = VAR_STRING;
- rettv->vval.v_string = NULL;
- if ((linenr_T)vimvars[VV_FOLDSTART].vv_nr > 0
- && (linenr_T)vimvars[VV_FOLDEND].vv_nr
- <= curbuf->b_ml.ml_line_count
- && vimvars[VV_FOLDDASHES].vv_str != NULL) {
- /* Find first non-empty line in the fold. */
- lnum = (linenr_T)vimvars[VV_FOLDSTART].vv_nr;
- while (lnum < (linenr_T)vimvars[VV_FOLDEND].vv_nr) {
- if (!linewhite(lnum))
- break;
- ++lnum;
- }
-
- /* Find interesting text in this line. */
- s = skipwhite(ml_get(lnum));
- /* skip C comment-start */
- if (s[0] == '/' && (s[1] == '*' || s[1] == '/')) {
- s = skipwhite(s + 2);
- if (*skipwhite(s) == NUL
- && lnum + 1 < (linenr_T)vimvars[VV_FOLDEND].vv_nr) {
- s = skipwhite(ml_get(lnum + 1));
- if (*s == '*')
- s = skipwhite(s + 1);
- }
- }
- txt = _("+-%s%3ld lines: ");
- r = alloc((unsigned)(STRLEN(txt)
- + STRLEN(vimvars[VV_FOLDDASHES].vv_str) /* for %s */
- + 20 /* for %3ld */
- + STRLEN(s))); /* concatenated */
- if (r != NULL) {
- sprintf((char *)r, txt, vimvars[VV_FOLDDASHES].vv_str,
- (long)((linenr_T)vimvars[VV_FOLDEND].vv_nr
- - (linenr_T)vimvars[VV_FOLDSTART].vv_nr + 1));
- len = (int)STRLEN(r);
- STRCAT(r, s);
- /* remove 'foldmarker' and 'commentstring' */
- foldtext_cleanup(r + len);
- rettv->vval.v_string = r;
- }
- }
-}
-
-/*
- * "foldtextresult(lnum)" function
- */
-static void f_foldtextresult(typval_T *argvars, typval_T *rettv)
-{
- linenr_T lnum;
- char_u *text;
- char_u buf[51];
- foldinfo_T foldinfo;
- int fold_count;
-
- rettv->v_type = VAR_STRING;
- rettv->vval.v_string = NULL;
- lnum = get_tv_lnum(argvars);
- /* treat illegal types and illegal string values for {lnum} the same */
- if (lnum < 0)
- lnum = 0;
- fold_count = foldedCount(curwin, lnum, &foldinfo);
- if (fold_count > 0) {
- text = get_foldtext(curwin, lnum, lnum + fold_count - 1,
- &foldinfo, buf);
- if (text == buf)
- text = vim_strsave(text);
- rettv->vval.v_string = text;
- }
-}
-
-/*
- * "foreground()" function
- */
-static void f_foreground(typval_T *argvars, typval_T *rettv)
-{
-}
-
-/*
- * "function()" function
- */
-static void f_function(typval_T *argvars, typval_T *rettv)
-{
- char_u *s;
-
- s = get_tv_string(&argvars[0]);
- if (s == NULL || *s == NUL || VIM_ISDIGIT(*s))
- EMSG2(_(e_invarg2), s);
- /* Don't check an autoload name for existence here. */
- else if (vim_strchr(s, AUTOLOAD_CHAR) == NULL && !function_exists(s))
- EMSG2(_("E700: Unknown function: %s"), s);
- else {
- if (STRNCMP(s, "s:", 2) == 0 || STRNCMP(s, "<SID>", 5) == 0) {
- char sid_buf[25];
- int off = *s == 's' ? 2 : 5;
-
- /* Expand s: and <SID> into <SNR>nr_, so that the function can
- * also be called from another script. Using trans_function_name()
- * would also work, but some plugins depend on the name being
- * printable text. */
- sprintf(sid_buf, "<SNR>%" PRId64 "_", (int64_t)current_SID);
- rettv->vval.v_string =
- alloc((int)(STRLEN(sid_buf) + STRLEN(s + off) + 1));
- if (rettv->vval.v_string != NULL) {
- STRCPY(rettv->vval.v_string, sid_buf);
- STRCAT(rettv->vval.v_string, s + off);
- }
- } else
- rettv->vval.v_string = vim_strsave(s);
- rettv->v_type = VAR_FUNC;
- }
-}
-
-/*
- * "garbagecollect()" function
- */
-static void f_garbagecollect(typval_T *argvars, typval_T *rettv)
-{
- /* This is postponed until we are back at the toplevel, because we may be
- * using Lists and Dicts internally. E.g.: ":echo [garbagecollect()]". */
- want_garbage_collect = TRUE;
-
- if (argvars[0].v_type != VAR_UNKNOWN && get_tv_number(&argvars[0]) == 1)
- garbage_collect_at_exit = TRUE;
-}
-
-/*
- * "get()" function
- */
-static void f_get(typval_T *argvars, typval_T *rettv)
-{
- listitem_T *li;
- list_T *l;
- dictitem_T *di;
- dict_T *d;
- typval_T *tv = NULL;
-
- if (argvars[0].v_type == VAR_LIST) {
- if ((l = argvars[0].vval.v_list) != NULL) {
- int error = FALSE;
-
- li = list_find(l, get_tv_number_chk(&argvars[1], &error));
- if (!error && li != NULL)
- tv = &li->li_tv;
- }
- } else if (argvars[0].v_type == VAR_DICT) {
- if ((d = argvars[0].vval.v_dict) != NULL) {
- di = dict_find(d, get_tv_string(&argvars[1]), -1);
- if (di != NULL)
- tv = &di->di_tv;
- }
- } else
- EMSG2(_(e_listdictarg), "get()");
-
- if (tv == NULL) {
- if (argvars[2].v_type != VAR_UNKNOWN)
- copy_tv(&argvars[2], rettv);
- } else
- copy_tv(tv, rettv);
-}
-
-static void get_buffer_lines(buf_T *buf, linenr_T start, linenr_T end,
- int retlist,
- typval_T *rettv);
-
-/*
- * Get line or list of lines from buffer "buf" into "rettv".
- * Return a range (from start to end) of lines in rettv from the specified
- * buffer.
- * If 'retlist' is TRUE, then the lines are returned as a Vim List.
- */
-static void get_buffer_lines(buf_T *buf, linenr_T start, linenr_T end, int retlist, typval_T *rettv)
-{
- char_u *p;
-
- rettv->v_type = VAR_STRING;
- rettv->vval.v_string = NULL;
- if (retlist) {
- rettv_list_alloc(rettv);
- }
-
- if (buf == NULL || buf->b_ml.ml_mfp == NULL || start < 0)
- return;
-
- if (!retlist) {
- if (start >= 1 && start <= buf->b_ml.ml_line_count)
- p = ml_get_buf(buf, start, FALSE);
- else
- p = (char_u *)"";
- rettv->vval.v_string = vim_strsave(p);
- } else {
- if (end < start)
- return;
-
- if (start < 1)
- start = 1;
- if (end > buf->b_ml.ml_line_count)
- end = buf->b_ml.ml_line_count;
- while (start <= end) {
- list_append_string(
- rettv->vval.v_list, ml_get_buf(buf, start++, FALSE), -1);
- }
- }
-}
-
-/*
- * "getbufline()" function
- */
-static void f_getbufline(typval_T *argvars, typval_T *rettv)
-{
- linenr_T lnum;
- linenr_T end;
- buf_T *buf;
-
- (void)get_tv_number(&argvars[0]); /* issue errmsg if type error */
- ++emsg_off;
- buf = get_buf_tv(&argvars[0], FALSE);
- --emsg_off;
-
- lnum = get_tv_lnum_buf(&argvars[1], buf);
- if (argvars[2].v_type == VAR_UNKNOWN)
- end = lnum;
- else
- end = get_tv_lnum_buf(&argvars[2], buf);
-
- get_buffer_lines(buf, lnum, end, TRUE, rettv);
-}
-
-/*
- * "getbufvar()" function
- */
-static void f_getbufvar(typval_T *argvars, typval_T *rettv)
-{
- buf_T *buf;
- buf_T *save_curbuf;
- char_u *varname;
- dictitem_T *v;
- int done = FALSE;
-
- (void)get_tv_number(&argvars[0]); /* issue errmsg if type error */
- varname = get_tv_string_chk(&argvars[1]);
- ++emsg_off;
- buf = get_buf_tv(&argvars[0], FALSE);
-
- rettv->v_type = VAR_STRING;
- rettv->vval.v_string = NULL;
-
- if (buf != NULL && varname != NULL) {
- /* set curbuf to be our buf, temporarily */
- save_curbuf = curbuf;
- curbuf = buf;
-
- if (*varname == '&') { /* buffer-local-option */
- if (get_option_tv(&varname, rettv, TRUE) == OK)
- done = TRUE;
- } else if (STRCMP(varname, "changedtick") == 0) {
- rettv->v_type = VAR_NUMBER;
- rettv->vval.v_number = curbuf->b_changedtick;
- done = TRUE;
- } else {
- /* Look up the variable. */
- /* Let getbufvar({nr}, "") return the "b:" dictionary. */
- v = find_var_in_ht(&curbuf->b_vars->dv_hashtab,
- 'b', varname, FALSE);
- if (v != NULL) {
- copy_tv(&v->di_tv, rettv);
- done = TRUE;
- }
- }
-
- /* restore previous notion of curbuf */
- curbuf = save_curbuf;
- }
-
- if (!done && argvars[2].v_type != VAR_UNKNOWN)
- /* use the default value */
- copy_tv(&argvars[2], rettv);
-
- --emsg_off;
-}
-
-/*
- * "getchar()" function
- */
-static void f_getchar(typval_T *argvars, typval_T *rettv)
-{
- varnumber_T n;
- int error = FALSE;
-
- /* Position the cursor. Needed after a message that ends in a space. */
- windgoto(msg_row, msg_col);
-
- ++no_mapping;
- ++allow_keys;
- for (;; ) {
- if (argvars[0].v_type == VAR_UNKNOWN)
- /* getchar(): blocking wait. */
- n = safe_vgetc();
- else if (get_tv_number_chk(&argvars[0], &error) == 1)
- /* getchar(1): only check if char avail */
- n = vpeekc();
- else if (error || vpeekc() == NUL)
- /* illegal argument or getchar(0) and no char avail: return zero */
- n = 0;
- else
- /* getchar(0) and char avail: return char */
- n = safe_vgetc();
- if (n == K_IGNORE)
- continue;
- break;
- }
- --no_mapping;
- --allow_keys;
-
- vimvars[VV_MOUSE_WIN].vv_nr = 0;
- vimvars[VV_MOUSE_LNUM].vv_nr = 0;
- vimvars[VV_MOUSE_COL].vv_nr = 0;
-
- rettv->vval.v_number = n;
- if (IS_SPECIAL(n) || mod_mask != 0) {
- char_u temp[10]; /* modifier: 3, mbyte-char: 6, NUL: 1 */
- int i = 0;
-
- /* Turn a special key into three bytes, plus modifier. */
- if (mod_mask != 0) {
- temp[i++] = K_SPECIAL;
- temp[i++] = KS_MODIFIER;
- temp[i++] = mod_mask;
- }
- if (IS_SPECIAL(n)) {
- temp[i++] = K_SPECIAL;
- temp[i++] = K_SECOND(n);
- temp[i++] = K_THIRD(n);
- } else if (has_mbyte)
- i += (*mb_char2bytes)(n, temp + i);
- else
- temp[i++] = n;
- temp[i++] = NUL;
- rettv->v_type = VAR_STRING;
- rettv->vval.v_string = vim_strsave(temp);
-
- if (is_mouse_key(n)) {
- int row = mouse_row;
- int col = mouse_col;
- win_T *win;
- linenr_T lnum;
- win_T *wp;
- int winnr = 1;
-
- if (row >= 0 && col >= 0) {
- /* Find the window at the mouse coordinates and compute the
- * text position. */
- win = mouse_find_win(&row, &col);
- (void)mouse_comp_pos(win, &row, &col, &lnum);
- for (wp = firstwin; wp != win; wp = wp->w_next)
- ++winnr;
- vimvars[VV_MOUSE_WIN].vv_nr = winnr;
- vimvars[VV_MOUSE_LNUM].vv_nr = lnum;
- vimvars[VV_MOUSE_COL].vv_nr = col + 1;
- }
- }
- }
-}
-
-/*
- * "getcharmod()" function
- */
-static void f_getcharmod(typval_T *argvars, typval_T *rettv)
-{
- rettv->vval.v_number = mod_mask;
-}
-
-/*
- * "getcmdline()" function
- */
-static void f_getcmdline(typval_T *argvars, typval_T *rettv)
-{
- rettv->v_type = VAR_STRING;
- rettv->vval.v_string = get_cmdline_str();
-}
-
-/*
- * "getcmdpos()" function
- */
-static void f_getcmdpos(typval_T *argvars, typval_T *rettv)
-{
- rettv->vval.v_number = get_cmdline_pos() + 1;
-}
-
-/*
- * "getcmdtype()" function
- */
-static void f_getcmdtype(typval_T *argvars, typval_T *rettv)
-{
- rettv->v_type = VAR_STRING;
- rettv->vval.v_string = alloc(2);
- if (rettv->vval.v_string != NULL) {
- rettv->vval.v_string[0] = get_cmdline_type();
- rettv->vval.v_string[1] = NUL;
- }
-}
-
-/*
- * "getcwd()" function
- */
-static void f_getcwd(typval_T *argvars, typval_T *rettv)
-{
- char_u *cwd;
-
- rettv->v_type = VAR_STRING;
- rettv->vval.v_string = NULL;
- cwd = alloc(MAXPATHL);
- if (cwd != NULL) {
- if (os_dirname(cwd, MAXPATHL) != FAIL) {
- rettv->vval.v_string = vim_strsave(cwd);
-#ifdef BACKSLASH_IN_FILENAME
- if (rettv->vval.v_string != NULL)
- slash_adjust(rettv->vval.v_string);
-#endif
- }
- free(cwd);
- }
-}
-
-/*
- * "getfontname()" function
- */
-static void f_getfontname(typval_T *argvars, typval_T *rettv)
-{
- rettv->v_type = VAR_STRING;
- rettv->vval.v_string = NULL;
-}
-
-/*
- * "getfperm({fname})" function
- */
-static void f_getfperm(typval_T *argvars, typval_T *rettv)
-{
- char_u *perm = NULL;
- char_u flags[] = "rwx";
-
- char_u *filename = get_tv_string(&argvars[0]);
- int32_t file_perm = os_getperm(filename);
- if (file_perm >= 0) {
- perm = vim_strsave((char_u *)"---------");
- if (perm != NULL) {
- for (int i = 0; i < 9; i++) {
- if (file_perm & (1 << (8 - i)))
- perm[i] = flags[i % 3];
- }
- }
- }
- rettv->v_type = VAR_STRING;
- rettv->vval.v_string = perm;
-}
-
-/*
- * "getfsize({fname})" function
- */
-static void f_getfsize(typval_T *argvars, typval_T *rettv)
-{
- char *fname = (char *)get_tv_string(&argvars[0]);
-
- rettv->v_type = VAR_NUMBER;
-
- off_t file_size;
- if (os_get_file_size(fname, &file_size)) {
- if (os_isdir((char_u *)fname))
- rettv->vval.v_number = 0;
- else {
- rettv->vval.v_number = (varnumber_T)file_size;
-
- /* non-perfect check for overflow */
- if ((off_t)rettv->vval.v_number != file_size) {
- rettv->vval.v_number = -2;
- }
- }
- } else {
- rettv->vval.v_number = -1;
- }
-}
-
-/*
- * "getftime({fname})" function
- */
-static void f_getftime(typval_T *argvars, typval_T *rettv)
-{
- char *fname = (char *)get_tv_string(&argvars[0]);
-
- FileInfo file_info;
- if (os_get_file_info(fname, &file_info)) {
- rettv->vval.v_number = (varnumber_T)file_info.stat.st_mtim.tv_sec;
- } else {
- rettv->vval.v_number = -1;
- }
-}
-
-/*
- * "getftype({fname})" function
- */
-static void f_getftype(typval_T *argvars, typval_T *rettv)
-{
- char_u *fname;
- char_u *type = NULL;
- char *t;
-
- fname = get_tv_string(&argvars[0]);
-
- rettv->v_type = VAR_STRING;
- FileInfo file_info;
- if (os_get_file_info_link((char *)fname, &file_info)) {
- uint64_t mode = file_info.stat.st_mode;
-#ifdef S_ISREG
- if (S_ISREG(mode))
- t = "file";
- else if (S_ISDIR(mode))
- t = "dir";
-# ifdef S_ISLNK
- else if (S_ISLNK(mode))
- t = "link";
-# endif
-# ifdef S_ISBLK
- else if (S_ISBLK(mode))
- t = "bdev";
-# endif
-# ifdef S_ISCHR
- else if (S_ISCHR(mode))
- t = "cdev";
-# endif
-# ifdef S_ISFIFO
- else if (S_ISFIFO(mode))
- t = "fifo";
-# endif
-# ifdef S_ISSOCK
- else if (S_ISSOCK(mode))
- t = "fifo";
-# endif
- else
- t = "other";
-#else
-# ifdef S_IFMT
- switch (mode & S_IFMT) {
- case S_IFREG: t = "file"; break;
- case S_IFDIR: t = "dir"; break;
-# ifdef S_IFLNK
- case S_IFLNK: t = "link"; break;
-# endif
-# ifdef S_IFBLK
- case S_IFBLK: t = "bdev"; break;
-# endif
-# ifdef S_IFCHR
- case S_IFCHR: t = "cdev"; break;
-# endif
-# ifdef S_IFIFO
- case S_IFIFO: t = "fifo"; break;
-# endif
-# ifdef S_IFSOCK
- case S_IFSOCK: t = "socket"; break;
-# endif
- default: t = "other";
- }
-# else
- if (os_isdir(fname))
- t = "dir";
- else
- t = "file";
-# endif
-#endif
- type = vim_strsave((char_u *)t);
- }
- rettv->vval.v_string = type;
-}
-
-/*
- * "getline(lnum, [end])" function
- */
-static void f_getline(typval_T *argvars, typval_T *rettv)
-{
- linenr_T lnum;
- linenr_T end;
- int retlist;
-
- lnum = get_tv_lnum(argvars);
- if (argvars[1].v_type == VAR_UNKNOWN) {
- end = 0;
- retlist = FALSE;
- } else {
- end = get_tv_lnum(&argvars[1]);
- retlist = TRUE;
- }
-
- get_buffer_lines(curbuf, lnum, end, retlist, rettv);
-}
-
-/*
- * "getmatches()" function
- */
-static void f_getmatches(typval_T *argvars, typval_T *rettv)
-{
- matchitem_T *cur = curwin->w_match_head;
-
- rettv_list_alloc(rettv);
- while (cur != NULL) {
- dict_T *dict = dict_alloc();
- dict_add_nr_str(dict, "group", 0L, syn_id2name(cur->hlg_id));
- dict_add_nr_str(dict, "pattern", 0L, cur->pattern);
- dict_add_nr_str(dict, "priority", (long)cur->priority, NULL);
- dict_add_nr_str(dict, "id", (long)cur->id, NULL);
- list_append_dict(rettv->vval.v_list, dict);
- cur = cur->next;
- }
-}
-
-/*
- * "getpid()" function
- */
-static void f_getpid(typval_T *argvars, typval_T *rettv)
-{
- rettv->vval.v_number = os_get_pid();
-}
-
-/*
- * "getpos(string)" function
- */
-static void f_getpos(typval_T *argvars, typval_T *rettv)
-{
- pos_T *fp;
- list_T *l;
- int fnum = -1;
-
- rettv_list_alloc(rettv);
- l = rettv->vval.v_list;
- fp = var2fpos(&argvars[0], TRUE, &fnum);
- list_append_number(l, (fnum != -1) ? (varnumber_T)fnum : (varnumber_T)0);
- list_append_number(l, (fp != NULL) ? (varnumber_T)fp->lnum : (varnumber_T)0);
- list_append_number(l,
- (fp != NULL)
- ? (varnumber_T)(fp->col == MAXCOL ? MAXCOL : fp->col + 1)
- : (varnumber_T)0);
- list_append_number(l,
- (fp != NULL) ? (varnumber_T)fp->coladd : (varnumber_T)0);
-}
-
-/*
- * "getqflist()" and "getloclist()" functions
- */
-static void f_getqflist(typval_T *argvars, typval_T *rettv)
-{
- rettv_list_alloc(rettv);
- win_T *wp = NULL;
- if (argvars[0].v_type != VAR_UNKNOWN) { /* getloclist() */
- wp = find_win_by_nr(&argvars[0], NULL);
- if (wp == NULL) {
- return;
- }
- }
- (void)get_errorlist(wp, rettv->vval.v_list);
-}
-
-/*
- * "getreg()" function
- */
-static void f_getreg(typval_T *argvars, typval_T *rettv)
-{
- char_u *strregname;
- int regname;
- int arg2 = FALSE;
- int error = FALSE;
-
- if (argvars[0].v_type != VAR_UNKNOWN) {
- strregname = get_tv_string_chk(&argvars[0]);
- error = strregname == NULL;
- if (argvars[1].v_type != VAR_UNKNOWN)
- arg2 = get_tv_number_chk(&argvars[1], &error);
- } else
- strregname = vimvars[VV_REG].vv_str;
- regname = (strregname == NULL ? '"' : *strregname);
- if (regname == 0)
- regname = '"';
-
- rettv->v_type = VAR_STRING;
- rettv->vval.v_string = error ? NULL :
- get_reg_contents(regname, TRUE, arg2);
-}
-
-/*
- * "getregtype()" function
- */
-static void f_getregtype(typval_T *argvars, typval_T *rettv)
-{
- char_u *strregname;
- int regname;
- char_u buf[NUMBUFLEN + 2];
- long reglen = 0;
-
- if (argvars[0].v_type != VAR_UNKNOWN) {
- strregname = get_tv_string_chk(&argvars[0]);
- if (strregname == NULL) { /* type error; errmsg already given */
- rettv->v_type = VAR_STRING;
- rettv->vval.v_string = NULL;
- return;
- }
- } else
- /* Default to v:register */
- strregname = vimvars[VV_REG].vv_str;
-
- regname = (strregname == NULL ? '"' : *strregname);
- if (regname == 0)
- regname = '"';
-
- buf[0] = NUL;
- buf[1] = NUL;
- switch (get_reg_type(regname, &reglen)) {
- case MLINE: buf[0] = 'V'; break;
- case MCHAR: buf[0] = 'v'; break;
- case MBLOCK:
- buf[0] = Ctrl_V;
- sprintf((char *)buf + 1, "%" PRId64, (int64_t)(reglen + 1));
- break;
- }
- rettv->v_type = VAR_STRING;
- rettv->vval.v_string = vim_strsave(buf);
-}
-
-/*
- * "gettabvar()" function
- */
-static void f_gettabvar(typval_T *argvars, typval_T *rettv)
-{
- tabpage_T *tp;
- dictitem_T *v;
- char_u *varname;
- int done = FALSE;
-
- rettv->v_type = VAR_STRING;
- rettv->vval.v_string = NULL;
-
- varname = get_tv_string_chk(&argvars[1]);
- tp = find_tabpage((int)get_tv_number_chk(&argvars[0], NULL));
- if (tp != NULL && varname != NULL) {
- /* look up the variable */
- v = find_var_in_ht(&tp->tp_vars->dv_hashtab, 0, varname, FALSE);
- if (v != NULL) {
- copy_tv(&v->di_tv, rettv);
- done = TRUE;
- }
- }
-
- if (!done && argvars[2].v_type != VAR_UNKNOWN)
- copy_tv(&argvars[2], rettv);
-}
-
-/*
- * "gettabwinvar()" function
- */
-static void f_gettabwinvar(typval_T *argvars, typval_T *rettv)
-{
- getwinvar(argvars, rettv, 1);
-}
-
-/*
- * "getwinposx()" function
- */
-static void f_getwinposx(typval_T *argvars, typval_T *rettv)
-{
- rettv->vval.v_number = -1;
-}
-
-/*
- * "getwinposy()" function
- */
-static void f_getwinposy(typval_T *argvars, typval_T *rettv)
-{
- rettv->vval.v_number = -1;
-}
-
-/*
- * Find window specified by "vp" in tabpage "tp".
- */
-static win_T *
-find_win_by_nr (
- typval_T *vp,
- tabpage_T *tp /* NULL for current tab page */
-)
-{
- win_T *wp;
- int nr;
-
- nr = get_tv_number_chk(vp, NULL);
-
- if (nr < 0)
- return NULL;
- if (nr == 0)
- return curwin;
-
- for (wp = (tp == NULL || tp == curtab) ? firstwin : tp->tp_firstwin;
- wp != NULL; wp = wp->w_next)
- if (--nr <= 0)
- break;
- return wp;
-}
-
-/*
- * "getwinvar()" function
- */
-static void f_getwinvar(typval_T *argvars, typval_T *rettv)
-{
- getwinvar(argvars, rettv, 0);
-}
-
-/*
- * getwinvar() and gettabwinvar()
- */
-static void
-getwinvar (
- typval_T *argvars,
- typval_T *rettv,
- int off /* 1 for gettabwinvar() */
-)
-{
- win_T *win, *oldcurwin;
- char_u *varname;
- dictitem_T *v;
- tabpage_T *tp = NULL;
- tabpage_T *oldtabpage = NULL;
- int done = FALSE;
-
- if (off == 1)
- tp = find_tabpage((int)get_tv_number_chk(&argvars[0], NULL));
- else
- tp = curtab;
- win = find_win_by_nr(&argvars[off], tp);
- varname = get_tv_string_chk(&argvars[off + 1]);
- ++emsg_off;
-
- rettv->v_type = VAR_STRING;
- rettv->vval.v_string = NULL;
-
- if (win != NULL && varname != NULL) {
- /* Set curwin to be our win, temporarily. Also set the tabpage,
- * otherwise the window is not valid. */
- switch_win(&oldcurwin, &oldtabpage, win, tp, TRUE);
-
- if (*varname == '&') { /* window-local-option */
- if (get_option_tv(&varname, rettv, 1) == OK)
- done = TRUE;
- } else {
- /* Look up the variable. */
- /* Let getwinvar({nr}, "") return the "w:" dictionary. */
- v = find_var_in_ht(&win->w_vars->dv_hashtab, 'w', varname, FALSE);
- if (v != NULL) {
- copy_tv(&v->di_tv, rettv);
- done = TRUE;
- }
- }
-
- /* restore previous notion of curwin */
- restore_win(oldcurwin, oldtabpage, TRUE);
- }
-
- if (!done && argvars[off + 2].v_type != VAR_UNKNOWN)
- /* use the default return value */
- copy_tv(&argvars[off + 2], rettv);
-
- --emsg_off;
-}
-
-/*
- * "glob()" function
- */
-static void f_glob(typval_T *argvars, typval_T *rettv)
-{
- int options = WILD_SILENT|WILD_USE_NL;
- expand_T xpc;
- int error = FALSE;
-
- /* When the optional second argument is non-zero, don't remove matches
- * for 'wildignore' and don't put matches for 'suffixes' at the end. */
- rettv->v_type = VAR_STRING;
- if (argvars[1].v_type != VAR_UNKNOWN) {
- if (get_tv_number_chk(&argvars[1], &error))
- options |= WILD_KEEP_ALL;
- if (argvars[2].v_type != VAR_UNKNOWN
- && get_tv_number_chk(&argvars[2], &error)) {
- rettv->v_type = VAR_LIST;
- rettv->vval.v_list = NULL;
- }
- }
- if (!error) {
- ExpandInit(&xpc);
- xpc.xp_context = EXPAND_FILES;
- if (p_wic)
- options += WILD_ICASE;
- if (rettv->v_type == VAR_STRING)
- rettv->vval.v_string = ExpandOne(&xpc, get_tv_string(&argvars[0]),
- NULL, options, WILD_ALL);
- else {
- rettv_list_alloc(rettv);
- ExpandOne(&xpc, get_tv_string(&argvars[0]), NULL, options, WILD_ALL_KEEP);
- for (int i = 0; i < xpc.xp_numfiles; i++) {
- list_append_string(rettv->vval.v_list, xpc.xp_files[i], -1);
- }
- ExpandCleanup(&xpc);
- }
- } else
- rettv->vval.v_string = NULL;
-}
-
-/*
- * "globpath()" function
- */
-static void f_globpath(typval_T *argvars, typval_T *rettv)
-{
- int flags = 0;
- char_u buf1[NUMBUFLEN];
- char_u *file = get_tv_string_buf_chk(&argvars[1], buf1);
- int error = FALSE;
-
- /* When the optional second argument is non-zero, don't remove matches
- * for 'wildignore' and don't put matches for 'suffixes' at the end. */
- if (argvars[2].v_type != VAR_UNKNOWN
- && get_tv_number_chk(&argvars[2], &error))
- flags |= WILD_KEEP_ALL;
- rettv->v_type = VAR_STRING;
- if (file == NULL || error)
- rettv->vval.v_string = NULL;
- else
- rettv->vval.v_string = globpath(get_tv_string(&argvars[0]), file,
- flags);
-}
-
-/*
- * "has()" function
- */
-static void f_has(typval_T *argvars, typval_T *rettv)
-{
- int i;
- char_u *name;
- int n = FALSE;
- static char *(has_list[]) =
- {
-#ifdef UNIX
- "unix",
-#endif
-#if defined(WIN64) || defined(_WIN64)
- "win64",
-#endif
-#ifndef CASE_INSENSITIVE_FILENAME
- "fname_case",
-#endif
-#ifdef HAVE_ACL
- "acl",
-#endif
- "arabic",
- "autocmd",
-#if defined(SOME_BUILTIN_TCAPS) || defined(ALL_BUILTIN_TCAPS)
- "builtin_terms",
-# ifdef ALL_BUILTIN_TCAPS
- "all_builtin_terms",
-# endif
-#endif
-#if defined(FEAT_BROWSE) && (defined(USE_FILE_CHOOSER) \
- || defined(FEAT_GUI_W32) \
- || defined(FEAT_GUI_MOTIF))
- "browsefilter",
-#endif
- "byte_offset",
- "cindent",
- "cmdline_compl",
- "cmdline_hist",
- "comments",
- "conceal",
- "cryptv",
- "cscope",
- "cursorbind",
- "cursorshape",
-#ifdef DEBUG
- "debug",
-#endif
- "dialog_con",
- "diff",
- "digraphs",
- "eval", /* always present, of course! */
- "ex_extra",
- "extra_search",
- "farsi",
- "file_in_path",
- "filterpipe",
- "find_in_path",
- "float",
- "folding",
-#if defined(UNIX)
- "fork",
-#endif
- "gettext",
-#if defined(HAVE_ICONV_H) && defined(USE_ICONV)
- "iconv",
-#endif
- "insert_expand",
- "jumplist",
- "keymap",
- "langmap",
-#ifdef FEAT_LIBCALL
- "libcall",
-#endif
- "linebreak",
- "lispindent",
- "listcmds",
- "localmap",
- "menu",
- "mksession",
- "modify_fname",
- "mouse",
-#if defined(UNIX)
- "mouse_dec",
-# ifdef FEAT_MOUSE_JSB
- "mouse_jsbterm",
-# endif
- "mouse_netterm",
- "mouse_sgr",
- "mouse_urxvt",
- "mouse_xterm",
-#endif
- "multi_byte",
- "multi_lang",
- "path_extra",
- "persistent_undo",
- "postscript",
- "printer",
- "profile",
- "reltime",
- "quickfix",
- "rightleft",
- "scrollbind",
- "showcmd",
- "cmdline_info",
- "signs",
- "smartindent",
-#ifdef STARTUPTIME
- "startuptime",
-#endif
- "statusline",
- "spell",
- "syntax",
-#if !defined(UNIX)
- "system",
-#endif
- "tag_binary",
- "tag_old_static",
-#ifdef FEAT_TAG_ANYWHITE
- "tag_any_white",
-#endif
-#ifdef TERMINFO
- "terminfo",
-#endif
- "termresponse",
- "textobjects",
-#ifdef HAVE_TGETENT
- "tgetent",
-#endif
- "title",
- "user-commands", /* was accidentally included in 5.4 */
- "user_commands",
- "viminfo",
- "vertsplit",
- "virtualedit",
- "visual",
- "visualextra",
- "vreplace",
- "wildignore",
- "wildmenu",
- "windows",
- "winaltkeys",
- "writebackup",
- "neovim",
- NULL
- };
-
- name = get_tv_string(&argvars[0]);
- for (i = 0; has_list[i] != NULL; ++i)
- if (STRICMP(name, has_list[i]) == 0) {
- n = TRUE;
- break;
- }
-
- if (n == FALSE) {
- if (STRNICMP(name, "patch", 5) == 0) {
- if (name[5] == '-'
- && STRLEN(name) > 11
- && vim_isdigit(name[6])
- && vim_isdigit(name[8])
- && vim_isdigit(name[10])) {
- int major = atoi((char *)name + 6);
- int minor = atoi((char *)name + 8);
-
- // Expect "patch-9.9.01234".
- n = (major < VIM_VERSION_MAJOR
- || (major == VIM_VERSION_MAJOR
- && (minor < VIM_VERSION_MINOR
- || (minor == VIM_VERSION_MINOR
- && has_patch(atoi((char *)name + 10))))));
- } else {
- n = has_patch(atoi((char *)name + 5));
- }
- } else if (STRICMP(name, "vim_starting") == 0) {
- n = (starting != 0);
- } else if (STRICMP(name, "multi_byte_encoding") == 0) {
- n = has_mbyte;
-#if defined(USE_ICONV) && defined(DYNAMIC_ICONV)
- } else if (STRICMP(name, "iconv") == 0) {
- n = iconv_enabled(FALSE);
-#endif
- } else if (STRICMP(name, "syntax_items") == 0) {
- n = syntax_present(curwin);
- }
- }
-
- rettv->vval.v_number = n;
-}
-
-/*
- * "has_key()" function
- */
-static void f_has_key(typval_T *argvars, typval_T *rettv)
-{
- if (argvars[0].v_type != VAR_DICT) {
- EMSG(_(e_dictreq));
- return;
- }
- if (argvars[0].vval.v_dict == NULL)
- return;
-
- rettv->vval.v_number = dict_find(argvars[0].vval.v_dict,
- get_tv_string(&argvars[1]), -1) != NULL;
-}
-
-/*
- * "haslocaldir()" function
- */
-static void f_haslocaldir(typval_T *argvars, typval_T *rettv)
-{
- rettv->vval.v_number = (curwin->w_localdir != NULL);
-}
-
-/*
- * "hasmapto()" function
- */
-static void f_hasmapto(typval_T *argvars, typval_T *rettv)
-{
- char_u *name;
- char_u *mode;
- char_u buf[NUMBUFLEN];
- int abbr = FALSE;
-
- name = get_tv_string(&argvars[0]);
- if (argvars[1].v_type == VAR_UNKNOWN)
- mode = (char_u *)"nvo";
- else {
- mode = get_tv_string_buf(&argvars[1], buf);
- if (argvars[2].v_type != VAR_UNKNOWN)
- abbr = get_tv_number(&argvars[2]);
- }
-
- if (map_to_exists(name, mode, abbr))
- rettv->vval.v_number = TRUE;
- else
- rettv->vval.v_number = FALSE;
-}
-
-/*
- * "histadd()" function
- */
-static void f_histadd(typval_T *argvars, typval_T *rettv)
-{
- int histype;
- char_u *str;
- char_u buf[NUMBUFLEN];
-
- rettv->vval.v_number = FALSE;
- if (check_restricted() || check_secure())
- return;
- str = get_tv_string_chk(&argvars[0]); /* NULL on type error */
- histype = str != NULL ? get_histtype(str) : -1;
- if (histype >= 0) {
- str = get_tv_string_buf(&argvars[1], buf);
- if (*str != NUL) {
- init_history();
- add_to_history(histype, str, FALSE, NUL);
- rettv->vval.v_number = TRUE;
- return;
- }
- }
-}
-
-/*
- * "histdel()" function
- */
-static void f_histdel(typval_T *argvars, typval_T *rettv)
-{
- int n;
- char_u buf[NUMBUFLEN];
- char_u *str;
-
- str = get_tv_string_chk(&argvars[0]); /* NULL on type error */
- if (str == NULL)
- n = 0;
- else if (argvars[1].v_type == VAR_UNKNOWN)
- /* only one argument: clear entire history */
- n = clr_history(get_histtype(str));
- else if (argvars[1].v_type == VAR_NUMBER)
- /* index given: remove that entry */
- n = del_history_idx(get_histtype(str),
- (int)get_tv_number(&argvars[1]));
- else
- /* string given: remove all matching entries */
- n = del_history_entry(get_histtype(str),
- get_tv_string_buf(&argvars[1], buf));
- rettv->vval.v_number = n;
-}
-
-/*
- * "histget()" function
- */
-static void f_histget(typval_T *argvars, typval_T *rettv)
-{
- int type;
- int idx;
- char_u *str;
-
- str = get_tv_string_chk(&argvars[0]); /* NULL on type error */
- if (str == NULL)
- rettv->vval.v_string = NULL;
- else {
- type = get_histtype(str);
- if (argvars[1].v_type == VAR_UNKNOWN)
- idx = get_history_idx(type);
- else
- idx = (int)get_tv_number_chk(&argvars[1], NULL);
- /* -1 on type error */
- rettv->vval.v_string = vim_strsave(get_history_entry(type, idx));
- }
- rettv->v_type = VAR_STRING;
-}
-
-/*
- * "histnr()" function
- */
-static void f_histnr(typval_T *argvars, typval_T *rettv)
-{
- int i;
-
- char_u *history = get_tv_string_chk(&argvars[0]);
-
- i = history == NULL ? HIST_CMD - 1 : get_histtype(history);
- if (i >= HIST_CMD && i < HIST_COUNT)
- i = get_history_idx(i);
- else
- i = -1;
- rettv->vval.v_number = i;
-}
-
-/*
- * "highlightID(name)" function
- */
-static void f_hlID(typval_T *argvars, typval_T *rettv)
-{
- rettv->vval.v_number = syn_name2id(get_tv_string(&argvars[0]));
-}
-
-/*
- * "highlight_exists()" function
- */
-static void f_hlexists(typval_T *argvars, typval_T *rettv)
-{
- rettv->vval.v_number = highlight_exists(get_tv_string(&argvars[0]));
-}
-
-/*
- * "hostname()" function
- */
-static void f_hostname(typval_T *argvars, typval_T *rettv)
-{
- char hostname[256];
-
- os_get_hostname(hostname, 256);
- rettv->v_type = VAR_STRING;
- rettv->vval.v_string = vim_strsave((char_u *)hostname);
-}
-
-/*
- * iconv() function
- */
-static void f_iconv(typval_T *argvars, typval_T *rettv)
-{
- char_u buf1[NUMBUFLEN];
- char_u buf2[NUMBUFLEN];
- char_u *from, *to, *str;
- vimconv_T vimconv;
-
- rettv->v_type = VAR_STRING;
- rettv->vval.v_string = NULL;
-
- str = get_tv_string(&argvars[0]);
- from = enc_canonize(enc_skip(get_tv_string_buf(&argvars[1], buf1)));
- to = enc_canonize(enc_skip(get_tv_string_buf(&argvars[2], buf2)));
- vimconv.vc_type = CONV_NONE;
- convert_setup(&vimconv, from, to);
-
- /* If the encodings are equal, no conversion needed. */
- if (vimconv.vc_type == CONV_NONE)
- rettv->vval.v_string = vim_strsave(str);
- else
- rettv->vval.v_string = string_convert(&vimconv, str, NULL);
-
- convert_setup(&vimconv, NULL, NULL);
- free(from);
- free(to);
-}
-
-/*
- * "indent()" function
- */
-static void f_indent(typval_T *argvars, typval_T *rettv)
-{
- linenr_T lnum;
-
- lnum = get_tv_lnum(argvars);
- if (lnum >= 1 && lnum <= curbuf->b_ml.ml_line_count)
- rettv->vval.v_number = get_indent_lnum(lnum);
- else
- rettv->vval.v_number = -1;
-}
-
-/*
- * "index()" function
- */
-static void f_index(typval_T *argvars, typval_T *rettv)
-{
- list_T *l;
- listitem_T *item;
- long idx = 0;
- int ic = FALSE;
-
- rettv->vval.v_number = -1;
- if (argvars[0].v_type != VAR_LIST) {
- EMSG(_(e_listreq));
- return;
- }
- l = argvars[0].vval.v_list;
- if (l != NULL) {
- item = l->lv_first;
- if (argvars[2].v_type != VAR_UNKNOWN) {
- int error = FALSE;
-
- /* Start at specified item. Use the cached index that list_find()
- * sets, so that a negative number also works. */
- item = list_find(l, get_tv_number_chk(&argvars[2], &error));
- idx = l->lv_idx;
- if (argvars[3].v_type != VAR_UNKNOWN)
- ic = get_tv_number_chk(&argvars[3], &error);
- if (error)
- item = NULL;
- }
-
- for (; item != NULL; item = item->li_next, ++idx)
- if (tv_equal(&item->li_tv, &argvars[1], ic, FALSE)) {
- rettv->vval.v_number = idx;
- break;
- }
- }
-}
-
-static int inputsecret_flag = 0;
-
-static void get_user_input(typval_T *argvars, typval_T *rettv,
- int inputdialog);
-
-/*
- * This function is used by f_input() and f_inputdialog() functions. The third
- * argument to f_input() specifies the type of completion to use at the
- * prompt. The third argument to f_inputdialog() specifies the value to return
- * when the user cancels the prompt.
- */
-static void get_user_input(typval_T *argvars, typval_T *rettv, int inputdialog)
-{
- char_u *prompt = get_tv_string_chk(&argvars[0]);
- char_u *p = NULL;
- int c;
- char_u buf[NUMBUFLEN];
- int cmd_silent_save = cmd_silent;
- char_u *defstr = (char_u *)"";
- int xp_type = EXPAND_NOTHING;
- char_u *xp_arg = NULL;
-
- rettv->v_type = VAR_STRING;
- rettv->vval.v_string = NULL;
-
-#ifdef NO_CONSOLE_INPUT
- /* While starting up, there is no place to enter text. */
- if (no_console_input())
- return;
-#endif
-
- cmd_silent = FALSE; /* Want to see the prompt. */
- if (prompt != NULL) {
- /* Only the part of the message after the last NL is considered as
- * prompt for the command line */
- p = vim_strrchr(prompt, '\n');
- if (p == NULL)
- p = prompt;
- else {
- ++p;
- c = *p;
- *p = NUL;
- msg_start();
- msg_clr_eos();
- msg_puts_attr(prompt, echo_attr);
- msg_didout = FALSE;
- msg_starthere();
- *p = c;
- }
- cmdline_row = msg_row;
-
- if (argvars[1].v_type != VAR_UNKNOWN) {
- defstr = get_tv_string_buf_chk(&argvars[1], buf);
- if (defstr != NULL)
- stuffReadbuffSpec(defstr);
-
- if (!inputdialog && argvars[2].v_type != VAR_UNKNOWN) {
- char_u *xp_name;
- int xp_namelen;
- long argt;
-
- /* input() with a third argument: completion */
- rettv->vval.v_string = NULL;
-
- xp_name = get_tv_string_buf_chk(&argvars[2], buf);
- if (xp_name == NULL)
- return;
-
- xp_namelen = (int)STRLEN(xp_name);
-
- if (parse_compl_arg(xp_name, xp_namelen, &xp_type, &argt,
- &xp_arg) == FAIL)
- return;
- }
- }
-
- if (defstr != NULL) {
- int save_ex_normal_busy = ex_normal_busy;
- ex_normal_busy = 0;
- rettv->vval.v_string =
- getcmdline_prompt(inputsecret_flag ? NUL : '@', p, echo_attr,
- xp_type, xp_arg);
- ex_normal_busy = save_ex_normal_busy;
- }
- if (inputdialog && rettv->vval.v_string == NULL
- && argvars[1].v_type != VAR_UNKNOWN
- && argvars[2].v_type != VAR_UNKNOWN)
- rettv->vval.v_string = vim_strsave(get_tv_string_buf(
- &argvars[2], buf));
-
- free(xp_arg);
-
- /* since the user typed this, no need to wait for return */
- need_wait_return = FALSE;
- msg_didout = FALSE;
- }
- cmd_silent = cmd_silent_save;
-}
-
-/*
- * "input()" function
- * Also handles inputsecret() when inputsecret is set.
- */
-static void f_input(typval_T *argvars, typval_T *rettv)
-{
- get_user_input(argvars, rettv, FALSE);
-}
-
-/*
- * "inputdialog()" function
- */
-static void f_inputdialog(typval_T *argvars, typval_T *rettv)
-{
- get_user_input(argvars, rettv, TRUE);
-}
-
-/*
- * "inputlist()" function
- */
-static void f_inputlist(typval_T *argvars, typval_T *rettv)
-{
- listitem_T *li;
- int selected;
- int mouse_used;
-
-#ifdef NO_CONSOLE_INPUT
- /* While starting up, there is no place to enter text. */
- if (no_console_input())
- return;
-#endif
- if (argvars[0].v_type != VAR_LIST || argvars[0].vval.v_list == NULL) {
- EMSG2(_(e_listarg), "inputlist()");
- return;
- }
-
- msg_start();
- msg_row = Rows - 1; /* for when 'cmdheight' > 1 */
- lines_left = Rows; /* avoid more prompt */
- msg_scroll = TRUE;
- msg_clr_eos();
-
- for (li = argvars[0].vval.v_list->lv_first; li != NULL; li = li->li_next) {
- msg_puts(get_tv_string(&li->li_tv));
- msg_putchar('\n');
- }
-
- /* Ask for choice. */
- selected = prompt_for_number(&mouse_used);
- if (mouse_used)
- selected -= lines_left;
-
- rettv->vval.v_number = selected;
-}
-
-
-static garray_T ga_userinput = {0, 0, sizeof(tasave_T), 4, NULL};
-
-/*
- * "inputrestore()" function
- */
-static void f_inputrestore(typval_T *argvars, typval_T *rettv)
-{
- if (ga_userinput.ga_len > 0) {
- --ga_userinput.ga_len;
- restore_typeahead((tasave_T *)(ga_userinput.ga_data)
- + ga_userinput.ga_len);
- /* default return is zero == OK */
- } else if (p_verbose > 1) {
- verb_msg((char_u *)_("called inputrestore() more often than inputsave()"));
- rettv->vval.v_number = 1; /* Failed */
- }
-}
-
-/*
- * "inputsave()" function
- */
-static void f_inputsave(typval_T *argvars, typval_T *rettv)
-{
- /* Add an entry to the stack of typeahead storage. */
- ga_grow(&ga_userinput, 1);
- save_typeahead((tasave_T *)(ga_userinput.ga_data)
- + ga_userinput.ga_len);
- ++ga_userinput.ga_len;
-}
-
-/*
- * "inputsecret()" function
- */
-static void f_inputsecret(typval_T *argvars, typval_T *rettv)
-{
- ++cmdline_star;
- ++inputsecret_flag;
- f_input(argvars, rettv);
- --cmdline_star;
- --inputsecret_flag;
-}
-
-/*
- * "insert()" function
- */
-static void f_insert(typval_T *argvars, typval_T *rettv)
-{
- long before = 0;
- listitem_T *item;
- list_T *l;
- int error = FALSE;
-
- if (argvars[0].v_type != VAR_LIST)
- EMSG2(_(e_listarg), "insert()");
- else if ((l = argvars[0].vval.v_list) != NULL
- && !tv_check_lock(l->lv_lock, (char_u *)_("insert() argument"))) {
- if (argvars[2].v_type != VAR_UNKNOWN)
- before = get_tv_number_chk(&argvars[2], &error);
- if (error)
- return; /* type error; errmsg already given */
-
- if (before == l->lv_len)
- item = NULL;
- else {
- item = list_find(l, before);
- if (item == NULL) {
- EMSGN(_(e_listidx), before);
- l = NULL;
- }
- }
- if (l != NULL) {
- list_insert_tv(l, &argvars[1], item);
- copy_tv(&argvars[0], rettv);
- }
- }
-}
-
-/*
- * "invert(expr)" function
- */
-static void f_invert(typval_T *argvars, typval_T *rettv)
-{
- rettv->vval.v_number = ~get_tv_number_chk(&argvars[0], NULL);
-}
-
-/*
- * "isdirectory()" function
- */
-static void f_isdirectory(typval_T *argvars, typval_T *rettv)
-{
- rettv->vval.v_number = os_isdir(get_tv_string(&argvars[0]));
-}
-
-/*
- * "islocked()" function
- */
-static void f_islocked(typval_T *argvars, typval_T *rettv)
-{
- lval_T lv;
- char_u *end;
- dictitem_T *di;
-
- rettv->vval.v_number = -1;
- end = get_lval(get_tv_string(&argvars[0]), NULL, &lv, FALSE, FALSE,
- GLV_NO_AUTOLOAD, FNE_CHECK_START);
- if (end != NULL && lv.ll_name != NULL) {
- if (*end != NUL)
- EMSG(_(e_trailing));
- else {
- if (lv.ll_tv == NULL) {
- if (check_changedtick(lv.ll_name))
- rettv->vval.v_number = 1; /* always locked */
- else {
- di = find_var(lv.ll_name, NULL, TRUE);
- if (di != NULL) {
- /* Consider a variable locked when:
- * 1. the variable itself is locked
- * 2. the value of the variable is locked.
- * 3. the List or Dict value is locked.
- */
- rettv->vval.v_number = ((di->di_flags & DI_FLAGS_LOCK)
- || tv_islocked(&di->di_tv));
- }
- }
- } else if (lv.ll_range)
- EMSG(_("E786: Range not allowed"));
- else if (lv.ll_newkey != NULL)
- EMSG2(_(e_dictkey), lv.ll_newkey);
- else if (lv.ll_list != NULL)
- /* List item. */
- rettv->vval.v_number = tv_islocked(&lv.ll_li->li_tv);
- else
- /* Dictionary item. */
- rettv->vval.v_number = tv_islocked(&lv.ll_di->di_tv);
- }
- }
-
- clear_lval(&lv);
-}
-
-static void dict_list(typval_T *argvars, typval_T *rettv, int what);
-
-/*
- * Turn a dict into a list:
- * "what" == 0: list of keys
- * "what" == 1: list of values
- * "what" == 2: list of items
- */
-static void dict_list(typval_T *argvars, typval_T *rettv, int what)
-{
- list_T *l2;
- dictitem_T *di;
- hashitem_T *hi;
- listitem_T *li;
- listitem_T *li2;
- dict_T *d;
- int todo;
-
- if (argvars[0].v_type != VAR_DICT) {
- EMSG(_(e_dictreq));
- return;
- }
- if ((d = argvars[0].vval.v_dict) == NULL)
- return;
-
- rettv_list_alloc(rettv);
-
- todo = (int)d->dv_hashtab.ht_used;
- for (hi = d->dv_hashtab.ht_array; todo > 0; ++hi) {
- if (!HASHITEM_EMPTY(hi)) {
- --todo;
- di = HI2DI(hi);
-
- li = listitem_alloc();
- if (li == NULL)
- break;
- list_append(rettv->vval.v_list, li);
-
- if (what == 0) {
- /* keys() */
- li->li_tv.v_type = VAR_STRING;
- li->li_tv.v_lock = 0;
- li->li_tv.vval.v_string = vim_strsave(di->di_key);
- } else if (what == 1) {
- /* values() */
- copy_tv(&di->di_tv, &li->li_tv);
- } else {
- /* items() */
- l2 = list_alloc();
- li->li_tv.v_type = VAR_LIST;
- li->li_tv.v_lock = 0;
- li->li_tv.vval.v_list = l2;
- if (l2 == NULL)
- break;
- ++l2->lv_refcount;
-
- li2 = listitem_alloc();
- if (li2 == NULL)
- break;
- list_append(l2, li2);
- li2->li_tv.v_type = VAR_STRING;
- li2->li_tv.v_lock = 0;
- li2->li_tv.vval.v_string = vim_strsave(di->di_key);
-
- li2 = listitem_alloc();
- if (li2 == NULL)
- break;
- list_append(l2, li2);
- copy_tv(&di->di_tv, &li2->li_tv);
- }
- }
- }
-}
-
-/*
- * "items(dict)" function
- */
-static void f_items(typval_T *argvars, typval_T *rettv)
-{
- dict_list(argvars, rettv, 2);
-}
-
-// "jobstart()" function
-static void f_job_start(typval_T *argvars, typval_T *rettv)
-{
- list_T *args = NULL;
- listitem_T *arg;
- int i, argvl, argsl;
- char **argv = NULL;
-
- rettv->v_type = VAR_NUMBER;
- rettv->vval.v_number = 0;
-
- if (check_restricted() || check_secure()) {
- return;
- }
-
- if (argvars[0].v_type != VAR_STRING
- || argvars[1].v_type != VAR_STRING
- || (argvars[2].v_type != VAR_LIST
- && argvars[2].v_type != VAR_UNKNOWN)) {
- // Wrong argument types
- EMSG(_(e_invarg));
- return;
- }
-
- argsl = 0;
- if (argvars[2].v_type == VAR_LIST) {
- args = argvars[2].vval.v_list;
- argsl = args->lv_len;
- // Assert that all list items are strings
- for (arg = args->lv_first; arg != NULL; arg = arg->li_next) {
- if (arg->li_tv.v_type != VAR_STRING) {
- EMSG(_(e_invarg));
- return;
- }
- }
- }
-
- if (!os_can_exe(get_tv_string(&argvars[1]))) {
- // String is not executable
- EMSG2(e_jobexe, get_tv_string(&argvars[1]));
- return;
- }
-
- // Allocate extra memory for the argument vector and the NULL pointer
- argvl = argsl + 2;
- argv = xmalloc(sizeof(char_u *) * argvl);
-
- // Copy program name
- argv[0] = xstrdup((char *)argvars[1].vval.v_string);
-
- i = 1;
- // Copy arguments to the vector
- if (argsl > 0) {
- for (arg = args->lv_first; arg != NULL; arg = arg->li_next) {
- argv[i++] = xstrdup((char *)arg->li_tv.vval.v_string);
- }
- }
-
- // The last item of argv must be NULL
- argv[i] = NULL;
-
- rettv->vval.v_number = job_start(argv,
- xstrdup((char *)argvars[0].vval.v_string),
- on_job_stdout,
- on_job_stderr,
- on_job_exit);
-
- if (rettv->vval.v_number <= 0) {
- if (rettv->vval.v_number == 0) {
- EMSG(_(e_jobtblfull));
- } else {
- EMSG(_(e_jobexe));
- }
- }
-}
-
-// "jobstop()" function
-static void f_job_stop(typval_T *argvars, typval_T *rettv)
-{
- rettv->v_type = VAR_NUMBER;
- rettv->vval.v_number = 0;
-
- if (check_restricted() || check_secure()) {
- return;
- }
-
- if (argvars[0].v_type != VAR_NUMBER) {
- // Only argument is the job id
- EMSG(_(e_invarg));
- return;
- }
-
- if (!job_stop(argvars[0].vval.v_number)) {
- // Probably an invalid job id
- EMSG(_(e_invjob));
- return;
- }
-
- rettv->vval.v_number = 1;
-}
-
-// "jobwrite()" function
-static void f_job_write(typval_T *argvars, typval_T *rettv)
-{
- bool res;
- rettv->v_type = VAR_NUMBER;
- rettv->vval.v_number = 0;
-
- if (check_restricted() || check_secure()) {
- return;
- }
-
- if (argvars[0].v_type != VAR_NUMBER || argvars[1].v_type != VAR_STRING) {
- // First argument is the job id and second is the string to write to
- // the job's stdin
- EMSG(_(e_invarg));
- return;
- }
-
- res = job_write(argvars[0].vval.v_number,
- xstrdup((char *)argvars[1].vval.v_string),
- strlen((char *)argvars[1].vval.v_string));
-
- if (!res) {
- // Invalid job id
- EMSG(_(e_invjob));
- }
-
- rettv->vval.v_number = 1;
-}
-
-/*
- * "join()" function
- */
-static void f_join(typval_T *argvars, typval_T *rettv)
-{
- garray_T ga;
- char_u *sep;
-
- if (argvars[0].v_type != VAR_LIST) {
- EMSG(_(e_listreq));
- return;
- }
- if (argvars[0].vval.v_list == NULL)
- return;
- if (argvars[1].v_type == VAR_UNKNOWN)
- sep = (char_u *)" ";
- else
- sep = get_tv_string_chk(&argvars[1]);
-
- rettv->v_type = VAR_STRING;
-
- if (sep != NULL) {
- ga_init(&ga, (int)sizeof(char), 80);
- list_join(&ga, argvars[0].vval.v_list, sep, TRUE, 0);
- ga_append(&ga, NUL);
- rettv->vval.v_string = (char_u *)ga.ga_data;
- } else
- rettv->vval.v_string = NULL;
-}
-
-/*
- * "keys()" function
- */
-static void f_keys(typval_T *argvars, typval_T *rettv)
-{
- dict_list(argvars, rettv, 0);
-}
-
-/*
- * "last_buffer_nr()" function.
- */
-static void f_last_buffer_nr(typval_T *argvars, typval_T *rettv)
-{
- int n = 0;
- buf_T *buf;
-
- for (buf = firstbuf; buf != NULL; buf = buf->b_next)
- if (n < buf->b_fnum)
- n = buf->b_fnum;
-
- rettv->vval.v_number = n;
-}
-
-/*
- * "len()" function
- */
-static void f_len(typval_T *argvars, typval_T *rettv)
-{
- switch (argvars[0].v_type) {
- case VAR_STRING:
- case VAR_NUMBER:
- rettv->vval.v_number = (varnumber_T)STRLEN(
- get_tv_string(&argvars[0]));
- break;
- case VAR_LIST:
- rettv->vval.v_number = list_len(argvars[0].vval.v_list);
- break;
- case VAR_DICT:
- rettv->vval.v_number = dict_len(argvars[0].vval.v_dict);
- break;
- default:
- EMSG(_("E701: Invalid type for len()"));
- break;
- }
-}
-
-static void libcall_common(typval_T *argvars, typval_T *rettv, int type);
-
-static void libcall_common(typval_T *argvars, typval_T *rettv, int type)
-{
-#ifdef FEAT_LIBCALL
- char_u *string_in;
- char_u **string_result;
- int nr_result;
-#endif
-
- rettv->v_type = type;
- if (type != VAR_NUMBER)
- rettv->vval.v_string = NULL;
-
- if (check_restricted() || check_secure())
- return;
-
-#ifdef FEAT_LIBCALL
- /* The first two args must be strings, otherwise its meaningless */
- if (argvars[0].v_type == VAR_STRING && argvars[1].v_type == VAR_STRING) {
- string_in = NULL;
- if (argvars[2].v_type == VAR_STRING)
- string_in = argvars[2].vval.v_string;
- if (type == VAR_NUMBER)
- string_result = NULL;
- else
- string_result = &rettv->vval.v_string;
- if (mch_libcall(argvars[0].vval.v_string,
- argvars[1].vval.v_string,
- string_in,
- argvars[2].vval.v_number,
- string_result,
- &nr_result) == OK
- && type == VAR_NUMBER)
- rettv->vval.v_number = nr_result;
- }
-#endif
-}
-
-/*
- * "libcall()" function
- */
-static void f_libcall(typval_T *argvars, typval_T *rettv)
-{
- libcall_common(argvars, rettv, VAR_STRING);
-}
-
-/*
- * "libcallnr()" function
- */
-static void f_libcallnr(typval_T *argvars, typval_T *rettv)
-{
- libcall_common(argvars, rettv, VAR_NUMBER);
-}
-
-/*
- * "line(string)" function
- */
-static void f_line(typval_T *argvars, typval_T *rettv)
-{
- linenr_T lnum = 0;
- pos_T *fp;
- int fnum;
-
- fp = var2fpos(&argvars[0], TRUE, &fnum);
- if (fp != NULL)
- lnum = fp->lnum;
- rettv->vval.v_number = lnum;
-}
-
-/*
- * "line2byte(lnum)" function
- */
-static void f_line2byte(typval_T *argvars, typval_T *rettv)
-{
- linenr_T lnum;
-
- lnum = get_tv_lnum(argvars);
- if (lnum < 1 || lnum > curbuf->b_ml.ml_line_count + 1)
- rettv->vval.v_number = -1;
- else
- rettv->vval.v_number = ml_find_line_or_offset(curbuf, lnum, NULL);
- if (rettv->vval.v_number >= 0)
- ++rettv->vval.v_number;
-}
-
-/*
- * "lispindent(lnum)" function
- */
-static void f_lispindent(typval_T *argvars, typval_T *rettv)
-{
- pos_T pos;
- linenr_T lnum;
-
- pos = curwin->w_cursor;
- lnum = get_tv_lnum(argvars);
- if (lnum >= 1 && lnum <= curbuf->b_ml.ml_line_count) {
- curwin->w_cursor.lnum = lnum;
- rettv->vval.v_number = get_lisp_indent();
- curwin->w_cursor = pos;
- } else
- rettv->vval.v_number = -1;
-}
-
-/*
- * "localtime()" function
- */
-static void f_localtime(typval_T *argvars, typval_T *rettv)
-{
- rettv->vval.v_number = (varnumber_T)time(NULL);
-}
-
-static void get_maparg(typval_T *argvars, typval_T *rettv, int exact);
-
-static void get_maparg(typval_T *argvars, typval_T *rettv, int exact)
-{
- char_u *keys;
- char_u *which;
- char_u buf[NUMBUFLEN];
- char_u *keys_buf = NULL;
- char_u *rhs;
- int mode;
- int abbr = FALSE;
- int get_dict = FALSE;
- mapblock_T *mp;
- int buffer_local;
-
- /* return empty string for failure */
- rettv->v_type = VAR_STRING;
- rettv->vval.v_string = NULL;
-
- keys = get_tv_string(&argvars[0]);
- if (*keys == NUL)
- return;
-
- if (argvars[1].v_type != VAR_UNKNOWN) {
- which = get_tv_string_buf_chk(&argvars[1], buf);
- if (argvars[2].v_type != VAR_UNKNOWN) {
- abbr = get_tv_number(&argvars[2]);
- if (argvars[3].v_type != VAR_UNKNOWN)
- get_dict = get_tv_number(&argvars[3]);
- }
- } else
- which = (char_u *)"";
- if (which == NULL)
- return;
-
- mode = get_map_mode(&which, 0);
-
- keys = replace_termcodes(keys, &keys_buf, TRUE, TRUE, FALSE);
- rhs = check_map(keys, mode, exact, FALSE, abbr, &mp, &buffer_local);
- free(keys_buf);
-
- if (!get_dict) {
- /* Return a string. */
- if (rhs != NULL)
- rettv->vval.v_string = str2special_save(rhs, FALSE);
-
- } else if (rettv_dict_alloc(rettv) != FAIL && rhs != NULL) {
- /* Return a dictionary. */
- char_u *lhs = str2special_save(mp->m_keys, TRUE);
- char_u *mapmode = map_mode_to_chars(mp->m_mode);
- dict_T *dict = rettv->vval.v_dict;
-
- dict_add_nr_str(dict, "lhs", 0L, lhs);
- dict_add_nr_str(dict, "rhs", 0L, mp->m_orig_str);
- dict_add_nr_str(dict, "noremap", mp->m_noremap ? 1L : 0L, NULL);
- dict_add_nr_str(dict, "expr", mp->m_expr ? 1L : 0L, NULL);
- dict_add_nr_str(dict, "silent", mp->m_silent ? 1L : 0L, NULL);
- dict_add_nr_str(dict, "sid", (long)mp->m_script_ID, NULL);
- dict_add_nr_str(dict, "buffer", (long)buffer_local, NULL);
- dict_add_nr_str(dict, "nowait", mp->m_nowait ? 1L : 0L, NULL);
- dict_add_nr_str(dict, "mode", 0L, mapmode);
-
- free(lhs);
- free(mapmode);
- }
-}
-
-/*
- * "log()" function
- */
-static void f_log(typval_T *argvars, typval_T *rettv)
-{
- float_T f;
-
- rettv->v_type = VAR_FLOAT;
- if (get_float_arg(argvars, &f) == OK)
- rettv->vval.v_float = log(f);
- else
- rettv->vval.v_float = 0.0;
-}
-
-/*
- * "log10()" function
- */
-static void f_log10(typval_T *argvars, typval_T *rettv)
-{
- float_T f;
-
- rettv->v_type = VAR_FLOAT;
- if (get_float_arg(argvars, &f) == OK)
- rettv->vval.v_float = log10(f);
- else
- rettv->vval.v_float = 0.0;
-}
-
-
-/*
- * "map()" function
- */
-static void f_map(typval_T *argvars, typval_T *rettv)
-{
- filter_map(argvars, rettv, TRUE);
-}
-
-/*
- * "maparg()" function
- */
-static void f_maparg(typval_T *argvars, typval_T *rettv)
-{
- get_maparg(argvars, rettv, TRUE);
-}
-
-/*
- * "mapcheck()" function
- */
-static void f_mapcheck(typval_T *argvars, typval_T *rettv)
-{
- get_maparg(argvars, rettv, FALSE);
-}
-
-static void find_some_match(typval_T *argvars, typval_T *rettv, int start);
-
-static void find_some_match(typval_T *argvars, typval_T *rettv, int type)
-{
- char_u *str = NULL;
- long len = 0;
- char_u *expr = NULL;
- char_u *pat;
- regmatch_T regmatch;
- char_u patbuf[NUMBUFLEN];
- char_u strbuf[NUMBUFLEN];
- char_u *save_cpo;
- long start = 0;
- long nth = 1;
- colnr_T startcol = 0;
- int match = 0;
- list_T *l = NULL;
- listitem_T *li = NULL;
- long idx = 0;
- char_u *tofree = NULL;
-
- /* Make 'cpoptions' empty, the 'l' flag should not be used here. */
- save_cpo = p_cpo;
- p_cpo = (char_u *)"";
-
- rettv->vval.v_number = -1;
- if (type == 3) {
- /* return empty list when there are no matches */
- rettv_list_alloc(rettv);
- } else if (type == 2) {
- rettv->v_type = VAR_STRING;
- rettv->vval.v_string = NULL;
- }
-
- if (argvars[0].v_type == VAR_LIST) {
- if ((l = argvars[0].vval.v_list) == NULL)
- goto theend;
- li = l->lv_first;
- } else {
- expr = str = get_tv_string(&argvars[0]);
- len = (long)STRLEN(str);
- }
-
- pat = get_tv_string_buf_chk(&argvars[1], patbuf);
- if (pat == NULL)
- goto theend;
-
- if (argvars[2].v_type != VAR_UNKNOWN) {
- int error = FALSE;
-
- start = get_tv_number_chk(&argvars[2], &error);
- if (error)
- goto theend;
- if (l != NULL) {
- li = list_find(l, start);
- if (li == NULL)
- goto theend;
- idx = l->lv_idx; /* use the cached index */
- } else {
- if (start < 0)
- start = 0;
- if (start > len)
- goto theend;
- /* When "count" argument is there ignore matches before "start",
- * otherwise skip part of the string. Differs when pattern is "^"
- * or "\<". */
- if (argvars[3].v_type != VAR_UNKNOWN)
- startcol = start;
- else {
- str += start;
- len -= start;
- }
- }
-
- if (argvars[3].v_type != VAR_UNKNOWN)
- nth = get_tv_number_chk(&argvars[3], &error);
- if (error)
- goto theend;
- }
-
- regmatch.regprog = vim_regcomp(pat, RE_MAGIC + RE_STRING);
- if (regmatch.regprog != NULL) {
- regmatch.rm_ic = p_ic;
-
- for (;; ) {
- if (l != NULL) {
- if (li == NULL) {
- match = FALSE;
- break;
- }
- free(tofree);
- str = echo_string(&li->li_tv, &tofree, strbuf, 0);
- if (str == NULL)
- break;
- }
-
- match = vim_regexec_nl(&regmatch, str, (colnr_T)startcol);
-
- if (match && --nth <= 0)
- break;
- if (l == NULL && !match)
- break;
-
- /* Advance to just after the match. */
- if (l != NULL) {
- li = li->li_next;
- ++idx;
- } else {
- startcol = (colnr_T)(regmatch.startp[0]
- + (*mb_ptr2len)(regmatch.startp[0]) - str);
- if (startcol > (colnr_T)len || str + startcol <= regmatch.startp[0]) {
- match = FALSE;
- break;
- }
- }
- }
-
- if (match) {
- if (type == 3) {
- int i;
-
- /* return list with matched string and submatches */
- for (i = 0; i < NSUBEXP; ++i) {
- if (regmatch.endp[i] == NULL) {
- list_append_string(rettv->vval.v_list, (char_u *)"", 0);
- } else {
- list_append_string(rettv->vval.v_list,
- regmatch.startp[i],
- (int)(regmatch.endp[i] - regmatch.startp[i]));
- }
- }
- } else if (type == 2) {
- /* return matched string */
- if (l != NULL)
- copy_tv(&li->li_tv, rettv);
- else
- rettv->vval.v_string = vim_strnsave(regmatch.startp[0],
- (int)(regmatch.endp[0] - regmatch.startp[0]));
- } else if (l != NULL)
- rettv->vval.v_number = idx;
- else {
- if (type != 0)
- rettv->vval.v_number =
- (varnumber_T)(regmatch.startp[0] - str);
- else
- rettv->vval.v_number =
- (varnumber_T)(regmatch.endp[0] - str);
- rettv->vval.v_number += (varnumber_T)(str - expr);
- }
- }
- vim_regfree(regmatch.regprog);
- }
-
-theend:
- free(tofree);
- p_cpo = save_cpo;
-}
-
-/*
- * "match()" function
- */
-static void f_match(typval_T *argvars, typval_T *rettv)
-{
- find_some_match(argvars, rettv, 1);
-}
-
-/*
- * "matchadd()" function
- */
-static void f_matchadd(typval_T *argvars, typval_T *rettv)
-{
- char_u buf[NUMBUFLEN];
- char_u *grp = get_tv_string_buf_chk(&argvars[0], buf); /* group */
- char_u *pat = get_tv_string_buf_chk(&argvars[1], buf); /* pattern */
- int prio = 10; /* default priority */
- int id = -1;
- int error = FALSE;
-
- rettv->vval.v_number = -1;
-
- if (grp == NULL || pat == NULL)
- return;
- if (argvars[2].v_type != VAR_UNKNOWN) {
- prio = get_tv_number_chk(&argvars[2], &error);
- if (argvars[3].v_type != VAR_UNKNOWN)
- id = get_tv_number_chk(&argvars[3], &error);
- }
- if (error == TRUE)
- return;
- if (id >= 1 && id <= 3) {
- EMSGN("E798: ID is reserved for \":match\": %" PRId64, id);
- return;
- }
-
- rettv->vval.v_number = match_add(curwin, grp, pat, prio, id);
-}
-
-/*
- * "matcharg()" function
- */
-static void f_matcharg(typval_T *argvars, typval_T *rettv)
-{
- rettv_list_alloc(rettv);
-
- int id = get_tv_number(&argvars[0]);
-
- if (id >= 1 && id <= 3) {
- matchitem_T *m;
-
- if ((m = (matchitem_T *)get_match(curwin, id)) != NULL) {
- list_append_string(rettv->vval.v_list, syn_id2name(m->hlg_id), -1);
- list_append_string(rettv->vval.v_list, m->pattern, -1);
- } else {
- list_append_string(rettv->vval.v_list, NULL, -1);
- list_append_string(rettv->vval.v_list, NULL, -1);
- }
- }
-}
-
-/*
- * "matchdelete()" function
- */
-static void f_matchdelete(typval_T *argvars, typval_T *rettv)
-{
- rettv->vval.v_number = match_delete(curwin,
- (int)get_tv_number(&argvars[0]), TRUE);
-}
-
-/*
- * "matchend()" function
- */
-static void f_matchend(typval_T *argvars, typval_T *rettv)
-{
- find_some_match(argvars, rettv, 0);
-}
-
-/*
- * "matchlist()" function
- */
-static void f_matchlist(typval_T *argvars, typval_T *rettv)
-{
- find_some_match(argvars, rettv, 3);
-}
-
-/*
- * "matchstr()" function
- */
-static void f_matchstr(typval_T *argvars, typval_T *rettv)
-{
- find_some_match(argvars, rettv, 2);
-}
-
-static void max_min(typval_T *argvars, typval_T *rettv, int domax);
-
-static void max_min(typval_T *argvars, typval_T *rettv, int domax)
-{
- long n = 0;
- long i;
- int error = FALSE;
-
- if (argvars[0].v_type == VAR_LIST) {
- list_T *l;
- listitem_T *li;
-
- l = argvars[0].vval.v_list;
- if (l != NULL) {
- li = l->lv_first;
- if (li != NULL) {
- n = get_tv_number_chk(&li->li_tv, &error);
- for (;; ) {
- li = li->li_next;
- if (li == NULL)
- break;
- i = get_tv_number_chk(&li->li_tv, &error);
- if (domax ? i > n : i < n)
- n = i;
- }
- }
- }
- } else if (argvars[0].v_type == VAR_DICT) {
- dict_T *d;
- int first = TRUE;
- hashitem_T *hi;
- int todo;
-
- d = argvars[0].vval.v_dict;
- if (d != NULL) {
- todo = (int)d->dv_hashtab.ht_used;
- for (hi = d->dv_hashtab.ht_array; todo > 0; ++hi) {
- if (!HASHITEM_EMPTY(hi)) {
- --todo;
- i = get_tv_number_chk(&HI2DI(hi)->di_tv, &error);
- if (first) {
- n = i;
- first = FALSE;
- } else if (domax ? i > n : i < n)
- n = i;
- }
- }
- }
- } else
- EMSG(_(e_listdictarg));
- rettv->vval.v_number = error ? 0 : n;
-}
-
-/*
- * "max()" function
- */
-static void f_max(typval_T *argvars, typval_T *rettv)
-{
- max_min(argvars, rettv, TRUE);
-}
-
-/*
- * "min()" function
- */
-static void f_min(typval_T *argvars, typval_T *rettv)
-{
- max_min(argvars, rettv, FALSE);
-}
-
-static int mkdir_recurse(char_u *dir, int prot);
-
-/*
- * Create the directory in which "dir" is located, and higher levels when
- * needed.
- */
-static int mkdir_recurse(char_u *dir, int prot)
-{
- char_u *p;
- char_u *updir;
- int r = FAIL;
-
- /* Get end of directory name in "dir".
- * We're done when it's "/" or "c:/". */
- p = path_tail_with_sep(dir);
- if (p <= get_past_head(dir))
- return OK;
-
- /* If the directory exists we're done. Otherwise: create it.*/
- updir = vim_strnsave(dir, (int)(p - dir));
- if (updir == NULL)
- return FAIL;
- if (os_isdir(updir))
- r = OK;
- else if (mkdir_recurse(updir, prot) == OK)
- r = vim_mkdir_emsg(updir, prot);
- free(updir);
- return r;
-}
-
-/*
- * "mkdir()" function
- */
-static void f_mkdir(typval_T *argvars, typval_T *rettv)
-{
- char_u *dir;
- char_u buf[NUMBUFLEN];
- int prot = 0755;
-
- rettv->vval.v_number = FAIL;
- if (check_restricted() || check_secure())
- return;
-
- dir = get_tv_string_buf(&argvars[0], buf);
- if (*dir == NUL)
- rettv->vval.v_number = FAIL;
- else {
- if (*path_tail(dir) == NUL)
- /* remove trailing slashes */
- *path_tail_with_sep(dir) = NUL;
-
- if (argvars[1].v_type != VAR_UNKNOWN) {
- if (argvars[2].v_type != VAR_UNKNOWN)
- prot = get_tv_number_chk(&argvars[2], NULL);
- if (prot != -1 && STRCMP(get_tv_string(&argvars[1]), "p") == 0)
- mkdir_recurse(dir, prot);
- }
- rettv->vval.v_number = prot == -1 ? FAIL : vim_mkdir_emsg(dir, prot);
- }
-}
-
-/*
- * "mode()" function
- */
-static void f_mode(typval_T *argvars, typval_T *rettv)
-{
- char_u buf[3];
-
- buf[1] = NUL;
- buf[2] = NUL;
-
- if (VIsual_active) {
- if (VIsual_select)
- buf[0] = VIsual_mode + 's' - 'v';
- else
- buf[0] = VIsual_mode;
- } else if (State == HITRETURN || State == ASKMORE || State == SETWSIZE
- || State == CONFIRM) {
- buf[0] = 'r';
- if (State == ASKMORE)
- buf[1] = 'm';
- else if (State == CONFIRM)
- buf[1] = '?';
- } else if (State == EXTERNCMD)
- buf[0] = '!';
- else if (State & INSERT) {
- if (State & VREPLACE_FLAG) {
- buf[0] = 'R';
- buf[1] = 'v';
- } else if (State & REPLACE_FLAG)
- buf[0] = 'R';
- else
- buf[0] = 'i';
- } else if (State & CMDLINE) {
- buf[0] = 'c';
- if (exmode_active)
- buf[1] = 'v';
- } else if (exmode_active) {
- buf[0] = 'c';
- buf[1] = 'e';
- } else {
- buf[0] = 'n';
- if (finish_op)
- buf[1] = 'o';
- }
-
- /* Clear out the minor mode when the argument is not a non-zero number or
- * non-empty string. */
- if (!non_zero_arg(&argvars[0]))
- buf[1] = NUL;
-
- rettv->vval.v_string = vim_strsave(buf);
- rettv->v_type = VAR_STRING;
-}
-
-
-/*
- * "nextnonblank()" function
- */
-static void f_nextnonblank(typval_T *argvars, typval_T *rettv)
-{
- linenr_T lnum;
-
- for (lnum = get_tv_lnum(argvars);; ++lnum) {
- if (lnum < 0 || lnum > curbuf->b_ml.ml_line_count) {
- lnum = 0;
- break;
- }
- if (*skipwhite(ml_get(lnum)) != NUL)
- break;
- }
- rettv->vval.v_number = lnum;
-}
-
-/*
- * "nr2char()" function
- */
-static void f_nr2char(typval_T *argvars, typval_T *rettv)
-{
- char_u buf[NUMBUFLEN];
-
- if (has_mbyte) {
- int utf8 = 0;
-
- if (argvars[1].v_type != VAR_UNKNOWN)
- utf8 = get_tv_number_chk(&argvars[1], NULL);
- if (utf8)
- buf[(*utf_char2bytes)((int)get_tv_number(&argvars[0]), buf)] = NUL;
- else
- buf[(*mb_char2bytes)((int)get_tv_number(&argvars[0]), buf)] = NUL;
- } else {
- buf[0] = (char_u)get_tv_number(&argvars[0]);
- buf[1] = NUL;
- }
- rettv->v_type = VAR_STRING;
- rettv->vval.v_string = vim_strsave(buf);
-}
-
-/*
- * "or(expr, expr)" function
- */
-static void f_or(typval_T *argvars, typval_T *rettv)
-{
- rettv->vval.v_number = get_tv_number_chk(&argvars[0], NULL)
- | get_tv_number_chk(&argvars[1], NULL);
-}
-
-/*
- * "pathshorten()" function
- */
-static void f_pathshorten(typval_T *argvars, typval_T *rettv)
-{
- char_u *p;
-
- rettv->v_type = VAR_STRING;
- p = get_tv_string_chk(&argvars[0]);
- if (p == NULL)
- rettv->vval.v_string = NULL;
- else {
- p = vim_strsave(p);
- rettv->vval.v_string = p;
- if (p != NULL)
- shorten_dir(p);
- }
-}
-
-/*
- * "pow()" function
- */
-static void f_pow(typval_T *argvars, typval_T *rettv)
-{
- float_T fx, fy;
-
- rettv->v_type = VAR_FLOAT;
- if (get_float_arg(argvars, &fx) == OK
- && get_float_arg(&argvars[1], &fy) == OK)
- rettv->vval.v_float = pow(fx, fy);
- else
- rettv->vval.v_float = 0.0;
-}
-
-/*
- * "prevnonblank()" function
- */
-static void f_prevnonblank(typval_T *argvars, typval_T *rettv)
-{
- linenr_T lnum;
-
- lnum = get_tv_lnum(argvars);
- if (lnum < 1 || lnum > curbuf->b_ml.ml_line_count)
- lnum = 0;
- else
- while (lnum >= 1 && *skipwhite(ml_get(lnum)) == NUL)
- --lnum;
- rettv->vval.v_number = lnum;
-}
-
-/* This dummy va_list is here because:
- * - passing a NULL pointer doesn't work when va_list isn't a pointer
- * - locally in the function results in a "used before set" warning
- * - using va_start() to initialize it gives "function with fixed args" error */
-static va_list ap;
-
-/*
- * "printf()" function
- */
-static void f_printf(typval_T *argvars, typval_T *rettv)
-{
- rettv->v_type = VAR_STRING;
- rettv->vval.v_string = NULL;
- {
- char_u buf[NUMBUFLEN];
- int len;
- char_u *s;
- int saved_did_emsg = did_emsg;
- char *fmt;
-
- /* Get the required length, allocate the buffer and do it for real. */
- did_emsg = FALSE;
- fmt = (char *)get_tv_string_buf(&argvars[0], buf);
- len = vim_vsnprintf(NULL, 0, fmt, ap, argvars + 1);
- if (!did_emsg) {
- s = alloc(len + 1);
- if (s != NULL) {
- rettv->vval.v_string = s;
- (void)vim_vsnprintf((char *)s, len + 1, fmt, ap, argvars + 1);
- }
- }
- did_emsg |= saved_did_emsg;
- }
-}
-
-/*
- * "pumvisible()" function
- */
-static void f_pumvisible(typval_T *argvars, typval_T *rettv)
-{
- if (pum_visible())
- rettv->vval.v_number = 1;
-}
-
-
-
-/*
- * "range()" function
- */
-static void f_range(typval_T *argvars, typval_T *rettv)
-{
- long start;
- long end;
- long stride = 1;
- long i;
- int error = FALSE;
-
- start = get_tv_number_chk(&argvars[0], &error);
- if (argvars[1].v_type == VAR_UNKNOWN) {
- end = start - 1;
- start = 0;
- } else {
- end = get_tv_number_chk(&argvars[1], &error);
- if (argvars[2].v_type != VAR_UNKNOWN)
- stride = get_tv_number_chk(&argvars[2], &error);
- }
-
- if (error)
- return; /* type error; errmsg already given */
- if (stride == 0)
- EMSG(_("E726: Stride is zero"));
- else if (stride > 0 ? end + 1 < start : end - 1 > start)
- EMSG(_("E727: Start past end"));
- else {
- rettv_list_alloc(rettv);
- for (i = start; stride > 0 ? i <= end : i >= end; i += stride) {
- list_append_number(rettv->vval.v_list, (varnumber_T)i);
- }
- }
-}
-
-/*
- * "readfile()" function
- */
-static void f_readfile(typval_T *argvars, typval_T *rettv)
-{
- int binary = FALSE;
- int failed = FALSE;
- char_u *fname;
- FILE *fd;
- char_u buf[(IOSIZE/256)*256]; /* rounded to avoid odd + 1 */
- int io_size = sizeof(buf);
- int readlen; /* size of last fread() */
- char_u *prev = NULL; /* previously read bytes, if any */
- long prevlen = 0; /* length of data in prev */
- long prevsize = 0; /* size of prev buffer */
- long maxline = MAXLNUM;
- long cnt = 0;
- char_u *p; /* position in buf */
- char_u *start; /* start of current line */
-
- if (argvars[1].v_type != VAR_UNKNOWN) {
- if (STRCMP(get_tv_string(&argvars[1]), "b") == 0)
- binary = TRUE;
- if (argvars[2].v_type != VAR_UNKNOWN)
- maxline = get_tv_number(&argvars[2]);
- }
-
- rettv_list_alloc(rettv);
-
- /* Always open the file in binary mode, library functions have a mind of
- * their own about CR-LF conversion. */
- fname = get_tv_string(&argvars[0]);
- if (*fname == NUL || (fd = mch_fopen((char *)fname, READBIN)) == NULL) {
- EMSG2(_(e_notopen), *fname == NUL ? (char_u *)_("<empty>") : fname);
- return;
- }
-
- while (cnt < maxline || maxline < 0) {
- readlen = (int)fread(buf, 1, io_size, fd);
-
- /* This for loop processes what was read, but is also entered at end
- * of file so that either:
- * - an incomplete line gets written
- * - a "binary" file gets an empty line at the end if it ends in a
- * newline. */
- for (p = buf, start = buf;
- p < buf + readlen || (readlen <= 0 && (prevlen > 0 || binary));
- ++p) {
- if (*p == '\n' || readlen <= 0) {
- listitem_T *li;
- char_u *s = NULL;
- long_u len = p - start;
-
- /* Finished a line. Remove CRs before NL. */
- if (readlen > 0 && !binary) {
- while (len > 0 && start[len - 1] == '\r')
- --len;
- /* removal may cross back to the "prev" string */
- if (len == 0)
- while (prevlen > 0 && prev[prevlen - 1] == '\r')
- --prevlen;
- }
- if (prevlen == 0)
- s = vim_strnsave(start, (int)len);
- else {
- /* Change "prev" buffer to be the right size. This way
- * the bytes are only copied once, and very long lines are
- * allocated only once. */
- if ((s = xrealloc(prev, prevlen + len + 1)) != NULL) {
- memmove(s + prevlen, start, len);
- s[prevlen + len] = NUL;
- prev = NULL; /* the list will own the string */
- prevlen = prevsize = 0;
- }
- }
- if (s == NULL) {
- do_outofmem_msg((long_u) prevlen + len + 1);
- failed = TRUE;
- break;
- }
-
- if ((li = listitem_alloc()) == NULL) {
- free(s);
- failed = TRUE;
- break;
- }
- li->li_tv.v_type = VAR_STRING;
- li->li_tv.v_lock = 0;
- li->li_tv.vval.v_string = s;
- list_append(rettv->vval.v_list, li);
-
- start = p + 1; /* step over newline */
- if ((++cnt >= maxline && maxline >= 0) || readlen <= 0)
- break;
- } else if (*p == NUL)
- *p = '\n';
- /* Check for utf8 "bom"; U+FEFF is encoded as EF BB BF. Do this
- * when finding the BF and check the previous two bytes. */
- else if (*p == 0xbf && enc_utf8 && !binary) {
- /* Find the two bytes before the 0xbf. If p is at buf, or buf
- * + 1, these may be in the "prev" string. */
- char_u back1 = p >= buf + 1 ? p[-1]
- : prevlen >= 1 ? prev[prevlen - 1] : NUL;
- char_u back2 = p >= buf + 2 ? p[-2]
- : p == buf + 1 && prevlen >= 1 ? prev[prevlen - 1]
- : prevlen >= 2 ? prev[prevlen - 2] : NUL;
-
- if (back2 == 0xef && back1 == 0xbb) {
- char_u *dest = p - 2;
-
- /* Usually a BOM is at the beginning of a file, and so at
- * the beginning of a line; then we can just step over it.
- */
- if (start == dest)
- start = p + 1;
- else {
- /* have to shuffle buf to close gap */
- int adjust_prevlen = 0;
-
- if (dest < buf) {
- adjust_prevlen = (int)(buf - dest); /* must be 1 or 2 */
- dest = buf;
- }
- if (readlen > p - buf + 1)
- memmove(dest, p + 1, readlen - (p - buf) - 1);
- readlen -= 3 - adjust_prevlen;
- prevlen -= adjust_prevlen;
- p = dest - 1;
- }
- }
- }
- } /* for */
-
- if (failed || (cnt >= maxline && maxline >= 0) || readlen <= 0)
- break;
- if (start < p) {
- /* There's part of a line in buf, store it in "prev". */
- if (p - start + prevlen >= prevsize) {
- /* need bigger "prev" buffer */
- char_u *newprev;
-
- /* A common use case is ordinary text files and "prev" gets a
- * fragment of a line, so the first allocation is made
- * small, to avoid repeatedly 'allocing' large and
- * 'reallocing' small. */
- if (prevsize == 0)
- prevsize = (long)(p - start);
- else {
- long grow50pc = (prevsize * 3) / 2;
- long growmin = (long)((p - start) * 2 + prevlen);
- prevsize = grow50pc > growmin ? grow50pc : growmin;
- }
- newprev = prev == NULL ? alloc(prevsize)
- : xrealloc(prev, prevsize);
- if (newprev == NULL) {
- do_outofmem_msg((long_u)prevsize);
- failed = TRUE;
- break;
- }
- prev = newprev;
- }
- /* Add the line part to end of "prev". */
- memmove(prev + prevlen, start, p - start);
- prevlen += (long)(p - start);
- }
- } /* while */
-
- /*
- * For a negative line count use only the lines at the end of the file,
- * free the rest.
- */
- if (!failed && maxline < 0)
- while (cnt > -maxline) {
- listitem_remove(rettv->vval.v_list, rettv->vval.v_list->lv_first);
- --cnt;
- }
-
- if (failed) {
- list_free(rettv->vval.v_list, TRUE);
- /* readfile doc says an empty list is returned on error */
- rettv->vval.v_list = list_alloc();
- }
-
- free(prev);
- fclose(fd);
-}
-
-static int list2proftime(typval_T *arg, proftime_T *tm);
-
-/*
- * Convert a List to proftime_T.
- * Return FAIL when there is something wrong.
- */
-static int list2proftime(arg, tm)
-typval_T *arg;
-proftime_T *tm;
-{
- long n1, n2;
- int error = FALSE;
-
- if (arg->v_type != VAR_LIST || arg->vval.v_list == NULL
- || arg->vval.v_list->lv_len != 2)
- return FAIL;
- n1 = list_find_nr(arg->vval.v_list, 0L, &error);
- n2 = list_find_nr(arg->vval.v_list, 1L, &error);
- tm->tv_sec = n1;
- tm->tv_usec = n2;
- return error ? FAIL : OK;
-}
-
-/*
- * "reltime()" function
- */
-static void f_reltime(typval_T *argvars, typval_T *rettv)
-{
- proftime_T res;
- proftime_T start;
-
- if (argvars[0].v_type == VAR_UNKNOWN) {
- /* No arguments: get current time. */
- profile_start(&res);
- } else if (argvars[1].v_type == VAR_UNKNOWN) {
- if (list2proftime(&argvars[0], &res) == FAIL)
- return;
- profile_end(&res);
- } else {
- /* Two arguments: compute the difference. */
- if (list2proftime(&argvars[0], &start) == FAIL
- || list2proftime(&argvars[1], &res) == FAIL)
- return;
- profile_sub(&res, &start);
- }
-
- rettv_list_alloc(rettv);
- long n1 = res.tv_sec;
- long n2 = res.tv_usec;
- list_append_number(rettv->vval.v_list, (varnumber_T)n1);
- list_append_number(rettv->vval.v_list, (varnumber_T)n2);
-}
-
-/*
- * "reltimestr()" function
- */
-static void f_reltimestr(typval_T *argvars, typval_T *rettv)
-{
- proftime_T tm;
-
- rettv->v_type = VAR_STRING;
- rettv->vval.v_string = NULL;
- if (list2proftime(&argvars[0], &tm) == OK)
- rettv->vval.v_string = vim_strsave((char_u *)profile_msg(&tm));
-}
-
-
-
-/*
- * "remote_expr()" function
- */
-static void f_remote_expr(typval_T *argvars, typval_T *rettv)
-{
- rettv->v_type = VAR_STRING;
- rettv->vval.v_string = NULL;
-}
-
-/*
- * "remote_foreground()" function
- */
-static void f_remote_foreground(typval_T *argvars, typval_T *rettv)
-{
-}
-
-static void f_remote_peek(typval_T *argvars, typval_T *rettv)
-{
- rettv->vval.v_number = -1;
-}
-
-static void f_remote_read(typval_T *argvars, typval_T *rettv)
-{
- char_u *r = NULL;
-
- rettv->v_type = VAR_STRING;
- rettv->vval.v_string = r;
-}
-
-/*
- * "remote_send()" function
- */
-static void f_remote_send(typval_T *argvars, typval_T *rettv)
-{
- rettv->v_type = VAR_STRING;
- rettv->vval.v_string = NULL;
-}
-
-/*
- * "remove()" function
- */
-static void f_remove(typval_T *argvars, typval_T *rettv)
-{
- list_T *l;
- listitem_T *item, *item2;
- listitem_T *li;
- long idx;
- long end;
- char_u *key;
- dict_T *d;
- dictitem_T *di;
- char *arg_errmsg = N_("remove() argument");
-
- if (argvars[0].v_type == VAR_DICT) {
- if (argvars[2].v_type != VAR_UNKNOWN)
- EMSG2(_(e_toomanyarg), "remove()");
- else if ((d = argvars[0].vval.v_dict) != NULL
- && !tv_check_lock(d->dv_lock, (char_u *)_(arg_errmsg))) {
- key = get_tv_string_chk(&argvars[1]);
- if (key != NULL) {
- di = dict_find(d, key, -1);
- if (di == NULL)
- EMSG2(_(e_dictkey), key);
- else {
- *rettv = di->di_tv;
- init_tv(&di->di_tv);
- dictitem_remove(d, di);
- }
- }
- }
- } else if (argvars[0].v_type != VAR_LIST)
- EMSG2(_(e_listdictarg), "remove()");
- else if ((l = argvars[0].vval.v_list) != NULL
- && !tv_check_lock(l->lv_lock, (char_u *)_(arg_errmsg))) {
- int error = FALSE;
-
- idx = get_tv_number_chk(&argvars[1], &error);
- if (error)
- ; /* type error: do nothing, errmsg already given */
- else if ((item = list_find(l, idx)) == NULL)
- EMSGN(_(e_listidx), idx);
- else {
- if (argvars[2].v_type == VAR_UNKNOWN) {
- /* Remove one item, return its value. */
- list_remove(l, item, item);
- *rettv = item->li_tv;
- free(item);
- } else {
- /* Remove range of items, return list with values. */
- end = get_tv_number_chk(&argvars[2], &error);
- if (error)
- ; /* type error: do nothing */
- else if ((item2 = list_find(l, end)) == NULL)
- EMSGN(_(e_listidx), end);
- else {
- int cnt = 0;
-
- for (li = item; li != NULL; li = li->li_next) {
- ++cnt;
- if (li == item2)
- break;
- }
- if (li == NULL) /* didn't find "item2" after "item" */
- EMSG(_(e_invrange));
- else {
- list_remove(l, item, item2);
- rettv_list_alloc(rettv);
- l = rettv->vval.v_list;
- l->lv_first = item;
- l->lv_last = item2;
- item->li_prev = NULL;
- item2->li_next = NULL;
- l->lv_len = cnt;
- }
- }
- }
- }
- }
-}
-
-/*
- * "rename({from}, {to})" function
- */
-static void f_rename(typval_T *argvars, typval_T *rettv)
-{
- char_u buf[NUMBUFLEN];
-
- if (check_restricted() || check_secure())
- rettv->vval.v_number = -1;
- else
- rettv->vval.v_number = vim_rename(get_tv_string(&argvars[0]),
- get_tv_string_buf(&argvars[1], buf));
-}
-
-/*
- * "repeat()" function
- */
-static void f_repeat(typval_T *argvars, typval_T *rettv)
-{
- char_u *p;
- int n;
- int slen;
- int len;
- char_u *r;
- int i;
-
- n = get_tv_number(&argvars[1]);
- if (argvars[0].v_type == VAR_LIST) {
- rettv_list_alloc(rettv);
- if (argvars[0].vval.v_list != NULL) {
- while (n-- > 0) {
- if (list_extend(rettv->vval.v_list, argvars[0].vval.v_list, NULL)
- == FAIL) {
- break;
- }
- }
- }
- } else {
- p = get_tv_string(&argvars[0]);
- rettv->v_type = VAR_STRING;
- rettv->vval.v_string = NULL;
-
- slen = (int)STRLEN(p);
- len = slen * n;
- if (len <= 0)
- return;
-
- r = alloc(len + 1);
- if (r != NULL) {
- for (i = 0; i < n; i++)
- memmove(r + i * slen, p, (size_t)slen);
- r[len] = NUL;
- }
-
- rettv->vval.v_string = r;
- }
-}
-
-/*
- * "resolve()" function
- */
-static void f_resolve(typval_T *argvars, typval_T *rettv)
-{
- char_u *p;
-#ifdef HAVE_READLINK
- char_u *buf = NULL;
-#endif
-
- p = get_tv_string(&argvars[0]);
-#ifdef FEAT_SHORTCUT
- {
- char_u *v = NULL;
-
- v = mch_resolve_shortcut(p);
- if (v != NULL)
- rettv->vval.v_string = v;
- else
- rettv->vval.v_string = vim_strsave(p);
- }
-#else
-# ifdef HAVE_READLINK
- {
- char_u *cpy;
- int len;
- char_u *remain = NULL;
- char_u *q;
- int is_relative_to_current = FALSE;
- int has_trailing_pathsep = FALSE;
- int limit = 100;
-
- p = vim_strsave(p);
-
- if (p[0] == '.' && (vim_ispathsep(p[1])
- || (p[1] == '.' && (vim_ispathsep(p[2])))))
- is_relative_to_current = TRUE;
-
- len = STRLEN(p);
- if (len > 0 && after_pathsep(p, p + len)) {
- has_trailing_pathsep = TRUE;
- p[len - 1] = NUL; /* the trailing slash breaks readlink() */
- }
-
- q = path_next_component(p);
- if (*q != NUL) {
- /* Separate the first path component in "p", and keep the
- * remainder (beginning with the path separator). */
- remain = vim_strsave(q - 1);
- q[-1] = NUL;
- }
-
- buf = alloc(MAXPATHL + 1);
- if (buf == NULL)
- goto fail;
-
- for (;; ) {
- for (;; ) {
- len = readlink((char *)p, (char *)buf, MAXPATHL);
- if (len <= 0)
- break;
- buf[len] = NUL;
-
- if (limit-- == 0) {
- free(p);
- free(remain);
- EMSG(_("E655: Too many symbolic links (cycle?)"));
- rettv->vval.v_string = NULL;
- goto fail;
- }
-
- /* Ensure that the result will have a trailing path separator
- * if the argument has one. */
- if (remain == NULL && has_trailing_pathsep)
- add_pathsep(buf);
-
- /* Separate the first path component in the link value and
- * concatenate the remainders. */
- q = path_next_component(vim_ispathsep(*buf) ? buf + 1 : buf);
- if (*q != NUL) {
- if (remain == NULL)
- remain = vim_strsave(q - 1);
- else {
- cpy = concat_str(q - 1, remain);
- if (cpy != NULL) {
- free(remain);
- remain = cpy;
- }
- }
- q[-1] = NUL;
- }
-
- q = path_tail(p);
- if (q > p && *q == NUL) {
- /* Ignore trailing path separator. */
- q[-1] = NUL;
- q = path_tail(p);
- }
- if (q > p && !path_is_absolute_path(buf)) {
- /* symlink is relative to directory of argument */
- cpy = alloc((unsigned)(STRLEN(p) + STRLEN(buf) + 1));
- if (cpy != NULL) {
- STRCPY(cpy, p);
- STRCPY(path_tail(cpy), buf);
- free(p);
- p = cpy;
- }
- } else {
- free(p);
- p = vim_strsave(buf);
- }
- }
-
- if (remain == NULL)
- break;
-
- /* Append the first path component of "remain" to "p". */
- q = path_next_component(remain + 1);
- len = q - remain - (*q != NUL);
- cpy = vim_strnsave(p, STRLEN(p) + len);
- if (cpy != NULL) {
- STRNCAT(cpy, remain, len);
- free(p);
- p = cpy;
- }
- /* Shorten "remain". */
- if (*q != NUL)
- STRMOVE(remain, q - 1);
- else {
- free(remain);
- remain = NULL;
- }
- }
-
- /* If the result is a relative path name, make it explicitly relative to
- * the current directory if and only if the argument had this form. */
- if (!vim_ispathsep(*p)) {
- if (is_relative_to_current
- && *p != NUL
- && !(p[0] == '.'
- && (p[1] == NUL
- || vim_ispathsep(p[1])
- || (p[1] == '.'
- && (p[2] == NUL
- || vim_ispathsep(p[2])))))) {
- /* Prepend "./". */
- cpy = concat_str((char_u *)"./", p);
- if (cpy != NULL) {
- free(p);
- p = cpy;
- }
- } else if (!is_relative_to_current) {
- /* Strip leading "./". */
- q = p;
- while (q[0] == '.' && vim_ispathsep(q[1]))
- q += 2;
- if (q > p)
- STRMOVE(p, p + 2);
- }
- }
-
- /* Ensure that the result will have no trailing path separator
- * if the argument had none. But keep "/" or "//". */
- if (!has_trailing_pathsep) {
- q = p + STRLEN(p);
- if (after_pathsep(p, q))
- *path_tail_with_sep(p) = NUL;
- }
-
- rettv->vval.v_string = p;
- }
-# else
- rettv->vval.v_string = vim_strsave(p);
-# endif
-#endif
-
- simplify_filename(rettv->vval.v_string);
-
-#ifdef HAVE_READLINK
-fail:
- free(buf);
-#endif
- rettv->v_type = VAR_STRING;
-}
-
-/*
- * "reverse({list})" function
- */
-static void f_reverse(typval_T *argvars, typval_T *rettv)
-{
- list_T *l;
- listitem_T *li, *ni;
-
- if (argvars[0].v_type != VAR_LIST)
- EMSG2(_(e_listarg), "reverse()");
- else if ((l = argvars[0].vval.v_list) != NULL
- && !tv_check_lock(l->lv_lock, (char_u *)_("reverse() argument"))) {
- li = l->lv_last;
- l->lv_first = l->lv_last = NULL;
- l->lv_len = 0;
- while (li != NULL) {
- ni = li->li_prev;
- list_append(l, li);
- li = ni;
- }
- rettv->vval.v_list = l;
- rettv->v_type = VAR_LIST;
- ++l->lv_refcount;
- l->lv_idx = l->lv_len - l->lv_idx - 1;
- }
-}
-
-#define SP_NOMOVE 0x01 /* don't move cursor */
-#define SP_REPEAT 0x02 /* repeat to find outer pair */
-#define SP_RETCOUNT 0x04 /* return matchcount */
-#define SP_SETPCMARK 0x08 /* set previous context mark */
-#define SP_START 0x10 /* accept match at start position */
-#define SP_SUBPAT 0x20 /* return nr of matching sub-pattern */
-#define SP_END 0x40 /* leave cursor at end of match */
-
-static int get_search_arg(typval_T *varp, int *flagsp);
-
-/*
- * Get flags for a search function.
- * Possibly sets "p_ws".
- * Returns BACKWARD, FORWARD or zero (for an error).
- */
-static int get_search_arg(typval_T *varp, int *flagsp)
-{
- int dir = FORWARD;
- char_u *flags;
- char_u nbuf[NUMBUFLEN];
- int mask;
-
- if (varp->v_type != VAR_UNKNOWN) {
- flags = get_tv_string_buf_chk(varp, nbuf);
- if (flags == NULL)
- return 0; /* type error; errmsg already given */
- while (*flags != NUL) {
- switch (*flags) {
- case 'b': dir = BACKWARD; break;
- case 'w': p_ws = TRUE; break;
- case 'W': p_ws = FALSE; break;
- default: mask = 0;
- if (flagsp != NULL)
- switch (*flags) {
- case 'c': mask = SP_START; break;
- case 'e': mask = SP_END; break;
- case 'm': mask = SP_RETCOUNT; break;
- case 'n': mask = SP_NOMOVE; break;
- case 'p': mask = SP_SUBPAT; break;
- case 'r': mask = SP_REPEAT; break;
- case 's': mask = SP_SETPCMARK; break;
- }
- if (mask == 0) {
- EMSG2(_(e_invarg2), flags);
- dir = 0;
- } else
- *flagsp |= mask;
- }
- if (dir == 0)
- break;
- ++flags;
- }
- }
- return dir;
-}
-
-/*
- * Shared by search() and searchpos() functions
- */
-static int search_cmn(typval_T *argvars, pos_T *match_pos, int *flagsp)
-{
- int flags;
- char_u *pat;
- pos_T pos;
- pos_T save_cursor;
- int save_p_ws = p_ws;
- int dir;
- int retval = 0; /* default: FAIL */
- long lnum_stop = 0;
- proftime_T tm;
- long time_limit = 0;
- int options = SEARCH_KEEP;
- int subpatnum;
-
- pat = get_tv_string(&argvars[0]);
- dir = get_search_arg(&argvars[1], flagsp); /* may set p_ws */
- if (dir == 0)
- goto theend;
- flags = *flagsp;
- if (flags & SP_START)
- options |= SEARCH_START;
- if (flags & SP_END)
- options |= SEARCH_END;
-
- /* Optional arguments: line number to stop searching and timeout. */
- if (argvars[1].v_type != VAR_UNKNOWN && argvars[2].v_type != VAR_UNKNOWN) {
- lnum_stop = get_tv_number_chk(&argvars[2], NULL);
- if (lnum_stop < 0)
- goto theend;
- if (argvars[3].v_type != VAR_UNKNOWN) {
- time_limit = get_tv_number_chk(&argvars[3], NULL);
- if (time_limit < 0)
- goto theend;
- }
- }
-
- /* Set the time limit, if there is one. */
- profile_setlimit(time_limit, &tm);
-
- /*
- * This function does not accept SP_REPEAT and SP_RETCOUNT flags.
- * Check to make sure only those flags are set.
- * Also, Only the SP_NOMOVE or the SP_SETPCMARK flag can be set. Both
- * flags cannot be set. Check for that condition also.
- */
- if (((flags & (SP_REPEAT | SP_RETCOUNT)) != 0)
- || ((flags & SP_NOMOVE) && (flags & SP_SETPCMARK))) {
- EMSG2(_(e_invarg2), get_tv_string(&argvars[1]));
- goto theend;
- }
-
- pos = save_cursor = curwin->w_cursor;
- subpatnum = searchit(curwin, curbuf, &pos, dir, pat, 1L,
- options, RE_SEARCH, (linenr_T)lnum_stop, &tm);
- if (subpatnum != FAIL) {
- if (flags & SP_SUBPAT)
- retval = subpatnum;
- else
- retval = pos.lnum;
- if (flags & SP_SETPCMARK)
- setpcmark();
- curwin->w_cursor = pos;
- if (match_pos != NULL) {
- /* Store the match cursor position */
- match_pos->lnum = pos.lnum;
- match_pos->col = pos.col + 1;
- }
- /* "/$" will put the cursor after the end of the line, may need to
- * correct that here */
- check_cursor();
- }
-
- /* If 'n' flag is used: restore cursor position. */
- if (flags & SP_NOMOVE)
- curwin->w_cursor = save_cursor;
- else
- curwin->w_set_curswant = TRUE;
-theend:
- p_ws = save_p_ws;
-
- return retval;
-}
-
-
-/*
- * round() is not in C90, use ceil() or floor() instead.
- */
-float_T vim_round(float_T f)
-{
- return f > 0 ? floor(f + 0.5) : ceil(f - 0.5);
-}
-
-/*
- * "round({float})" function
- */
-static void f_round(typval_T *argvars, typval_T *rettv)
-{
- float_T f;
-
- rettv->v_type = VAR_FLOAT;
- if (get_float_arg(argvars, &f) == OK)
- rettv->vval.v_float = vim_round(f);
- else
- rettv->vval.v_float = 0.0;
-}
-
-/*
- * "screenattr()" function
- */
-static void f_screenattr(typval_T *argvars, typval_T *rettv)
-{
- int row;
- int col;
- int c;
-
- row = get_tv_number_chk(&argvars[0], NULL) - 1;
- col = get_tv_number_chk(&argvars[1], NULL) - 1;
- if (row < 0 || row >= screen_Rows
- || col < 0 || col >= screen_Columns)
- c = -1;
- else
- c = ScreenAttrs[LineOffset[row] + col];
- rettv->vval.v_number = c;
-}
-
-/*
- * "screenchar()" function
- */
-static void f_screenchar(typval_T *argvars, typval_T *rettv)
-{
- int row;
- int col;
- int off;
- int c;
-
- row = get_tv_number_chk(&argvars[0], NULL) - 1;
- col = get_tv_number_chk(&argvars[1], NULL) - 1;
- if (row < 0 || row >= screen_Rows
- || col < 0 || col >= screen_Columns)
- c = -1;
- else {
- off = LineOffset[row] + col;
- if (enc_utf8 && ScreenLinesUC[off] != 0)
- c = ScreenLinesUC[off];
- else
- c = ScreenLines[off];
- }
- rettv->vval.v_number = c;
-}
-
-/*
- * "screencol()" function
- *
- * First column is 1 to be consistent with virtcol().
- */
-static void f_screencol(typval_T *argvars, typval_T *rettv)
-{
- rettv->vval.v_number = screen_screencol() + 1;
-}
-
-/*
- * "screenrow()" function
- */
-static void f_screenrow(typval_T *argvars, typval_T *rettv)
-{
- rettv->vval.v_number = screen_screenrow() + 1;
-}
-
-/*
- * "search()" function
- */
-static void f_search(typval_T *argvars, typval_T *rettv)
-{
- int flags = 0;
-
- rettv->vval.v_number = search_cmn(argvars, NULL, &flags);
-}
-
-/*
- * "searchdecl()" function
- */
-static void f_searchdecl(typval_T *argvars, typval_T *rettv)
-{
- int locally = 1;
- int thisblock = 0;
- int error = FALSE;
- char_u *name;
-
- rettv->vval.v_number = 1; /* default: FAIL */
-
- name = get_tv_string_chk(&argvars[0]);
- if (argvars[1].v_type != VAR_UNKNOWN) {
- locally = get_tv_number_chk(&argvars[1], &error) == 0;
- if (!error && argvars[2].v_type != VAR_UNKNOWN)
- thisblock = get_tv_number_chk(&argvars[2], &error) != 0;
- }
- if (!error && name != NULL)
- rettv->vval.v_number = find_decl(name, (int)STRLEN(name),
- locally, thisblock, SEARCH_KEEP) == FAIL;
-}
-
-/*
- * Used by searchpair() and searchpairpos()
- */
-static int searchpair_cmn(typval_T *argvars, pos_T *match_pos)
-{
- char_u *spat, *mpat, *epat;
- char_u *skip;
- int save_p_ws = p_ws;
- int dir;
- int flags = 0;
- char_u nbuf1[NUMBUFLEN];
- char_u nbuf2[NUMBUFLEN];
- char_u nbuf3[NUMBUFLEN];
- int retval = 0; /* default: FAIL */
- long lnum_stop = 0;
- long time_limit = 0;
-
- /* Get the three pattern arguments: start, middle, end. */
- spat = get_tv_string_chk(&argvars[0]);
- mpat = get_tv_string_buf_chk(&argvars[1], nbuf1);
- epat = get_tv_string_buf_chk(&argvars[2], nbuf2);
- if (spat == NULL || mpat == NULL || epat == NULL)
- goto theend; /* type error */
-
- /* Handle the optional fourth argument: flags */
- dir = get_search_arg(&argvars[3], &flags); /* may set p_ws */
- if (dir == 0)
- goto theend;
-
- /* Don't accept SP_END or SP_SUBPAT.
- * Only one of the SP_NOMOVE or SP_SETPCMARK flags can be set.
- */
- if ((flags & (SP_END | SP_SUBPAT)) != 0
- || ((flags & SP_NOMOVE) && (flags & SP_SETPCMARK))) {
- EMSG2(_(e_invarg2), get_tv_string(&argvars[3]));
- goto theend;
- }
-
- /* Using 'r' implies 'W', otherwise it doesn't work. */
- if (flags & SP_REPEAT)
- p_ws = FALSE;
-
- /* Optional fifth argument: skip expression */
- if (argvars[3].v_type == VAR_UNKNOWN
- || argvars[4].v_type == VAR_UNKNOWN)
- skip = (char_u *)"";
- else {
- skip = get_tv_string_buf_chk(&argvars[4], nbuf3);
- if (argvars[5].v_type != VAR_UNKNOWN) {
- lnum_stop = get_tv_number_chk(&argvars[5], NULL);
- if (lnum_stop < 0)
- goto theend;
- if (argvars[6].v_type != VAR_UNKNOWN) {
- time_limit = get_tv_number_chk(&argvars[6], NULL);
- if (time_limit < 0)
- goto theend;
- }
- }
- }
- if (skip == NULL)
- goto theend; /* type error */
-
- retval = do_searchpair(spat, mpat, epat, dir, skip, flags,
- match_pos, lnum_stop, time_limit);
-
-theend:
- p_ws = save_p_ws;
-
- return retval;
-}
-
-/*
- * "searchpair()" function
- */
-static void f_searchpair(typval_T *argvars, typval_T *rettv)
-{
- rettv->vval.v_number = searchpair_cmn(argvars, NULL);
-}
-
-/*
- * "searchpairpos()" function
- */
-static void f_searchpairpos(typval_T *argvars, typval_T *rettv)
-{
- pos_T match_pos;
- int lnum = 0;
- int col = 0;
-
- rettv_list_alloc(rettv);
-
- if (searchpair_cmn(argvars, &match_pos) > 0) {
- lnum = match_pos.lnum;
- col = match_pos.col;
- }
-
- list_append_number(rettv->vval.v_list, (varnumber_T)lnum);
- list_append_number(rettv->vval.v_list, (varnumber_T)col);
-}
-
-/*
- * Search for a start/middle/end thing.
- * Used by searchpair(), see its documentation for the details.
- * Returns 0 or -1 for no match,
- */
-long
-do_searchpair (
- char_u *spat, /* start pattern */
- char_u *mpat, /* middle pattern */
- char_u *epat, /* end pattern */
- int dir, /* BACKWARD or FORWARD */
- char_u *skip, /* skip expression */
- int flags, /* SP_SETPCMARK and other SP_ values */
- pos_T *match_pos,
- linenr_T lnum_stop, /* stop at this line if not zero */
- long time_limit /* stop after this many msec */
-)
-{
- char_u *save_cpo;
- char_u *pat, *pat2 = NULL, *pat3 = NULL;
- long retval = 0;
- pos_T pos;
- pos_T firstpos;
- pos_T foundpos;
- pos_T save_cursor;
- pos_T save_pos;
- int n;
- int r;
- int nest = 1;
- int err;
- int options = SEARCH_KEEP;
- proftime_T tm;
-
- /* Make 'cpoptions' empty, the 'l' flag should not be used here. */
- save_cpo = p_cpo;
- p_cpo = empty_option;
-
- /* Set the time limit, if there is one. */
- profile_setlimit(time_limit, &tm);
-
- /* Make two search patterns: start/end (pat2, for in nested pairs) and
- * start/middle/end (pat3, for the top pair). */
- pat2 = alloc((unsigned)(STRLEN(spat) + STRLEN(epat) + 15));
- pat3 = alloc((unsigned)(STRLEN(spat) + STRLEN(mpat) + STRLEN(epat) + 23));
- if (pat2 == NULL || pat3 == NULL)
- goto theend;
- sprintf((char *)pat2, "\\(%s\\m\\)\\|\\(%s\\m\\)", spat, epat);
- if (*mpat == NUL)
- STRCPY(pat3, pat2);
- else
- sprintf((char *)pat3, "\\(%s\\m\\)\\|\\(%s\\m\\)\\|\\(%s\\m\\)",
- spat, epat, mpat);
- if (flags & SP_START)
- options |= SEARCH_START;
-
- save_cursor = curwin->w_cursor;
- pos = curwin->w_cursor;
- clearpos(&firstpos);
- clearpos(&foundpos);
- pat = pat3;
- for (;; ) {
- n = searchit(curwin, curbuf, &pos, dir, pat, 1L,
- options, RE_SEARCH, lnum_stop, &tm);
- if (n == FAIL || (firstpos.lnum != 0 && equalpos(pos, firstpos)))
- /* didn't find it or found the first match again: FAIL */
- break;
-
- if (firstpos.lnum == 0)
- firstpos = pos;
- if (equalpos(pos, foundpos)) {
- /* Found the same position again. Can happen with a pattern that
- * has "\zs" at the end and searching backwards. Advance one
- * character and try again. */
- if (dir == BACKWARD)
- decl(&pos);
- else
- incl(&pos);
- }
- foundpos = pos;
-
- /* clear the start flag to avoid getting stuck here */
- options &= ~SEARCH_START;
-
- /* If the skip pattern matches, ignore this match. */
- if (*skip != NUL) {
- save_pos = curwin->w_cursor;
- curwin->w_cursor = pos;
- r = eval_to_bool(skip, &err, NULL, FALSE);
- curwin->w_cursor = save_pos;
- if (err) {
- /* Evaluating {skip} caused an error, break here. */
- curwin->w_cursor = save_cursor;
- retval = -1;
- break;
- }
- if (r)
- continue;
- }
-
- if ((dir == BACKWARD && n == 3) || (dir == FORWARD && n == 2)) {
- /* Found end when searching backwards or start when searching
- * forward: nested pair. */
- ++nest;
- pat = pat2; /* nested, don't search for middle */
- } else {
- /* Found end when searching forward or start when searching
- * backward: end of (nested) pair; or found middle in outer pair. */
- if (--nest == 1)
- pat = pat3; /* outer level, search for middle */
- }
-
- if (nest == 0) {
- /* Found the match: return matchcount or line number. */
- if (flags & SP_RETCOUNT)
- ++retval;
- else
- retval = pos.lnum;
- if (flags & SP_SETPCMARK)
- setpcmark();
- curwin->w_cursor = pos;
- if (!(flags & SP_REPEAT))
- break;
- nest = 1; /* search for next unmatched */
- }
- }
-
- if (match_pos != NULL) {
- /* Store the match cursor position */
- match_pos->lnum = curwin->w_cursor.lnum;
- match_pos->col = curwin->w_cursor.col + 1;
- }
-
- /* If 'n' flag is used or search failed: restore cursor position. */
- if ((flags & SP_NOMOVE) || retval == 0)
- curwin->w_cursor = save_cursor;
-
-theend:
- free(pat2);
- free(pat3);
- if (p_cpo == empty_option)
- p_cpo = save_cpo;
- else
- /* Darn, evaluating the {skip} expression changed the value. */
- free_string_option(save_cpo);
-
- return retval;
-}
-
-/*
- * "searchpos()" function
- */
-static void f_searchpos(typval_T *argvars, typval_T *rettv)
-{
- pos_T match_pos;
- int lnum = 0;
- int col = 0;
- int n;
- int flags = 0;
-
- rettv_list_alloc(rettv);
-
- n = search_cmn(argvars, &match_pos, &flags);
- if (n > 0) {
- lnum = match_pos.lnum;
- col = match_pos.col;
- }
-
- list_append_number(rettv->vval.v_list, (varnumber_T)lnum);
- list_append_number(rettv->vval.v_list, (varnumber_T)col);
- if (flags & SP_SUBPAT)
- list_append_number(rettv->vval.v_list, (varnumber_T)n);
-}
-
-
-static void f_server2client(typval_T *argvars, typval_T *rettv)
-{
- rettv->vval.v_number = -1;
-}
-
-static void f_serverlist(typval_T *argvars, typval_T *rettv)
-{
- char_u *r = NULL;
-
- rettv->v_type = VAR_STRING;
- rettv->vval.v_string = r;
-}
-
-/*
- * "setbufvar()" function
- */
-static void f_setbufvar(typval_T *argvars, typval_T *rettv)
-{
- buf_T *buf;
- aco_save_T aco;
- char_u *varname, *bufvarname;
- typval_T *varp;
- char_u nbuf[NUMBUFLEN];
-
- if (check_restricted() || check_secure())
- return;
- (void)get_tv_number(&argvars[0]); /* issue errmsg if type error */
- varname = get_tv_string_chk(&argvars[1]);
- buf = get_buf_tv(&argvars[0], FALSE);
- varp = &argvars[2];
-
- if (buf != NULL && varname != NULL && varp != NULL) {
- /* set curbuf to be our buf, temporarily */
- aucmd_prepbuf(&aco, buf);
-
- if (*varname == '&') {
- long numval;
- char_u *strval;
- int error = FALSE;
-
- ++varname;
- numval = get_tv_number_chk(varp, &error);
- strval = get_tv_string_buf_chk(varp, nbuf);
- if (!error && strval != NULL)
- set_option_value(varname, numval, strval, OPT_LOCAL);
- } else {
- bufvarname = alloc((unsigned)STRLEN(varname) + 3);
- if (bufvarname != NULL) {
- STRCPY(bufvarname, "b:");
- STRCPY(bufvarname + 2, varname);
- set_var(bufvarname, varp, TRUE);
- free(bufvarname);
- }
- }
-
- /* reset notion of buffer */
- aucmd_restbuf(&aco);
- }
-}
-
-/*
- * "setcmdpos()" function
- */
-static void f_setcmdpos(typval_T *argvars, typval_T *rettv)
-{
- int pos = (int)get_tv_number(&argvars[0]) - 1;
-
- if (pos >= 0)
- rettv->vval.v_number = set_cmdline_pos(pos);
-}
-
-/*
- * "setline()" function
- */
-static void f_setline(typval_T *argvars, typval_T *rettv)
-{
- linenr_T lnum;
- char_u *line = NULL;
- list_T *l = NULL;
- listitem_T *li = NULL;
- long added = 0;
- linenr_T lcount = curbuf->b_ml.ml_line_count;
-
- lnum = get_tv_lnum(&argvars[0]);
- if (argvars[1].v_type == VAR_LIST) {
- l = argvars[1].vval.v_list;
- li = l->lv_first;
- } else
- line = get_tv_string_chk(&argvars[1]);
-
- /* default result is zero == OK */
- for (;; ) {
- if (l != NULL) {
- /* list argument, get next string */
- if (li == NULL)
- break;
- line = get_tv_string_chk(&li->li_tv);
- li = li->li_next;
- }
-
- rettv->vval.v_number = 1; /* FAIL */
- if (line == NULL || lnum < 1 || lnum > curbuf->b_ml.ml_line_count + 1)
- break;
-
- /* When coming here from Insert mode, sync undo, so that this can be
- * undone separately from what was previously inserted. */
- if (u_sync_once == 2) {
- u_sync_once = 1; /* notify that u_sync() was called */
- u_sync(TRUE);
- }
-
- if (lnum <= curbuf->b_ml.ml_line_count) {
- /* existing line, replace it */
- if (u_savesub(lnum) == OK && ml_replace(lnum, line, TRUE) == OK) {
- changed_bytes(lnum, 0);
- if (lnum == curwin->w_cursor.lnum)
- check_cursor_col();
- rettv->vval.v_number = 0; /* OK */
- }
- } else if (added > 0 || u_save(lnum - 1, lnum) == OK) {
- /* lnum is one past the last line, append the line */
- ++added;
- if (ml_append(lnum - 1, line, (colnr_T)0, FALSE) == OK)
- rettv->vval.v_number = 0; /* OK */
- }
-
- if (l == NULL) /* only one string argument */
- break;
- ++lnum;
- }
-
- if (added > 0)
- appended_lines_mark(lcount, added);
-}
-
-static void set_qf_ll_list(win_T *wp, typval_T *list_arg,
- typval_T *action_arg,
- typval_T *rettv);
-
-/*
- * Used by "setqflist()" and "setloclist()" functions
- */
-static void set_qf_ll_list(win_T *wp, typval_T *list_arg, typval_T *action_arg, typval_T *rettv)
-{
- char_u *act;
- int action = ' ';
-
- rettv->vval.v_number = -1;
-
- if (list_arg->v_type != VAR_LIST)
- EMSG(_(e_listreq));
- else {
- list_T *l = list_arg->vval.v_list;
-
- if (action_arg->v_type == VAR_STRING) {
- act = get_tv_string_chk(action_arg);
- if (act == NULL)
- return; /* type error; errmsg already given */
- if (*act == 'a' || *act == 'r')
- action = *act;
- }
-
- if (l != NULL && set_errorlist(wp, l, action,
- (char_u *)(wp == NULL ? "setqflist()" : "setloclist()")) == OK)
- rettv->vval.v_number = 0;
- }
-}
-
-/*
- * "setloclist()" function
- */
-static void f_setloclist(typval_T *argvars, typval_T *rettv)
-{
- win_T *win;
-
- rettv->vval.v_number = -1;
-
- win = find_win_by_nr(&argvars[0], NULL);
- if (win != NULL)
- set_qf_ll_list(win, &argvars[1], &argvars[2], rettv);
-}
-
-/*
- * "setmatches()" function
- */
-static void f_setmatches(typval_T *argvars, typval_T *rettv)
-{
- list_T *l;
- listitem_T *li;
- dict_T *d;
-
- rettv->vval.v_number = -1;
- if (argvars[0].v_type != VAR_LIST) {
- EMSG(_(e_listreq));
- return;
- }
- if ((l = argvars[0].vval.v_list) != NULL) {
-
- /* To some extent make sure that we are dealing with a list from
- * "getmatches()". */
- li = l->lv_first;
- while (li != NULL) {
- if (li->li_tv.v_type != VAR_DICT
- || (d = li->li_tv.vval.v_dict) == NULL) {
- EMSG(_(e_invarg));
- return;
- }
- if (!(dict_find(d, (char_u *)"group", -1) != NULL
- && dict_find(d, (char_u *)"pattern", -1) != NULL
- && dict_find(d, (char_u *)"priority", -1) != NULL
- && dict_find(d, (char_u *)"id", -1) != NULL)) {
- EMSG(_(e_invarg));
- return;
- }
- li = li->li_next;
- }
-
- clear_matches(curwin);
- li = l->lv_first;
- while (li != NULL) {
- d = li->li_tv.vval.v_dict;
- match_add(curwin, get_dict_string(d, (char_u *)"group", FALSE),
- get_dict_string(d, (char_u *)"pattern", FALSE),
- (int)get_dict_number(d, (char_u *)"priority"),
- (int)get_dict_number(d, (char_u *)"id"));
- li = li->li_next;
- }
- rettv->vval.v_number = 0;
- }
-}
-
-/*
- * "setpos()" function
- */
-static void f_setpos(typval_T *argvars, typval_T *rettv)
-{
- pos_T pos;
- int fnum;
- char_u *name;
-
- rettv->vval.v_number = -1;
- name = get_tv_string_chk(argvars);
- if (name != NULL) {
- if (list2fpos(&argvars[1], &pos, &fnum) == OK) {
- if (--pos.col < 0)
- pos.col = 0;
- if (name[0] == '.' && name[1] == NUL) {
- /* set cursor */
- if (fnum == curbuf->b_fnum) {
- curwin->w_cursor = pos;
- check_cursor();
- rettv->vval.v_number = 0;
- } else
- EMSG(_(e_invarg));
- } else if (name[0] == '\'' && name[1] != NUL && name[2] == NUL) {
- /* set mark */
- if (setmark_pos(name[1], &pos, fnum) == OK)
- rettv->vval.v_number = 0;
- } else
- EMSG(_(e_invarg));
- }
- }
-}
-
-/*
- * "setqflist()" function
- */
-static void f_setqflist(typval_T *argvars, typval_T *rettv)
-{
- set_qf_ll_list(NULL, &argvars[0], &argvars[1], rettv);
-}
-
-/*
- * "setreg()" function
- */
-static void f_setreg(typval_T *argvars, typval_T *rettv)
-{
- int regname;
- char_u *strregname;
- char_u *stropt;
- char_u *strval;
- int append;
- char_u yank_type;
- long block_len;
-
- block_len = -1;
- yank_type = MAUTO;
- append = FALSE;
-
- strregname = get_tv_string_chk(argvars);
- rettv->vval.v_number = 1; /* FAIL is default */
-
- if (strregname == NULL)
- return; /* type error; errmsg already given */
- regname = *strregname;
- if (regname == 0 || regname == '@')
- regname = '"';
- else if (regname == '=')
- return;
-
- if (argvars[2].v_type != VAR_UNKNOWN) {
- stropt = get_tv_string_chk(&argvars[2]);
- if (stropt == NULL)
- return; /* type error */
- for (; *stropt != NUL; ++stropt)
- switch (*stropt) {
- case 'a': case 'A': /* append */
- append = TRUE;
- break;
- case 'v': case 'c': /* character-wise selection */
- yank_type = MCHAR;
- break;
- case 'V': case 'l': /* line-wise selection */
- yank_type = MLINE;
- break;
- case 'b': case Ctrl_V: /* block-wise selection */
- yank_type = MBLOCK;
- if (VIM_ISDIGIT(stropt[1])) {
- ++stropt;
- block_len = getdigits(&stropt) - 1;
- --stropt;
- }
- break;
- }
- }
-
- strval = get_tv_string_chk(&argvars[1]);
- if (strval != NULL)
- write_reg_contents_ex(regname, strval, -1,
- append, yank_type, block_len);
- rettv->vval.v_number = 0;
-}
-
-/*
- * "settabvar()" function
- */
-static void f_settabvar(typval_T *argvars, typval_T *rettv)
-{
- tabpage_T *save_curtab;
- tabpage_T *tp;
- char_u *varname, *tabvarname;
- typval_T *varp;
-
- rettv->vval.v_number = 0;
-
- if (check_restricted() || check_secure())
- return;
-
- tp = find_tabpage((int)get_tv_number_chk(&argvars[0], NULL));
- varname = get_tv_string_chk(&argvars[1]);
- varp = &argvars[2];
-
- if (varname != NULL && varp != NULL
- && tp != NULL
- ) {
- save_curtab = curtab;
- goto_tabpage_tp(tp, FALSE, FALSE);
-
- tabvarname = alloc((unsigned)STRLEN(varname) + 3);
- if (tabvarname != NULL) {
- STRCPY(tabvarname, "t:");
- STRCPY(tabvarname + 2, varname);
- set_var(tabvarname, varp, TRUE);
- free(tabvarname);
- }
-
- /* Restore current tabpage */
- if (valid_tabpage(save_curtab))
- goto_tabpage_tp(save_curtab, FALSE, FALSE);
- }
-}
-
-/*
- * "settabwinvar()" function
- */
-static void f_settabwinvar(typval_T *argvars, typval_T *rettv)
-{
- setwinvar(argvars, rettv, 1);
-}
-
-/*
- * "setwinvar()" function
- */
-static void f_setwinvar(typval_T *argvars, typval_T *rettv)
-{
- setwinvar(argvars, rettv, 0);
-}
-
-/*
- * "setwinvar()" and "settabwinvar()" functions
- */
-
-static void setwinvar(typval_T *argvars, typval_T *rettv, int off)
-{
- win_T *win;
- win_T *save_curwin;
- tabpage_T *save_curtab;
- char_u *varname, *winvarname;
- typval_T *varp;
- char_u nbuf[NUMBUFLEN];
- tabpage_T *tp = NULL;
-
- if (check_restricted() || check_secure())
- return;
-
- if (off == 1)
- tp = find_tabpage((int)get_tv_number_chk(&argvars[0], NULL));
- else
- tp = curtab;
- win = find_win_by_nr(&argvars[off], tp);
- varname = get_tv_string_chk(&argvars[off + 1]);
- varp = &argvars[off + 2];
-
- if (win != NULL && varname != NULL && varp != NULL) {
- if (switch_win(&save_curwin, &save_curtab, win, tp, TRUE) == FAIL)
- return;
-
- if (*varname == '&') {
- long numval;
- char_u *strval;
- int error = FALSE;
-
- ++varname;
- numval = get_tv_number_chk(varp, &error);
- strval = get_tv_string_buf_chk(varp, nbuf);
- if (!error && strval != NULL)
- set_option_value(varname, numval, strval, OPT_LOCAL);
- } else {
- winvarname = alloc((unsigned)STRLEN(varname) + 3);
- if (winvarname != NULL) {
- STRCPY(winvarname, "w:");
- STRCPY(winvarname + 2, varname);
- set_var(winvarname, varp, TRUE);
- free(winvarname);
- }
- }
-
- restore_win(save_curwin, save_curtab, TRUE);
- }
-}
-
-/*
- * "sha256({string})" function
- */
-static void f_sha256(typval_T *argvars, typval_T *rettv)
-{
- char_u *p;
-
- p = get_tv_string(&argvars[0]);
- rettv->vval.v_string = vim_strsave(
- sha256_bytes(p, (int)STRLEN(p), NULL, 0));
- rettv->v_type = VAR_STRING;
-}
-
-/*
- * "shellescape({string})" function
- */
-static void f_shellescape(typval_T *argvars, typval_T *rettv)
-{
- rettv->vval.v_string = vim_strsave_shellescape(
- get_tv_string(&argvars[0]), non_zero_arg(&argvars[1]), true);
- rettv->v_type = VAR_STRING;
-}
-
-/*
- * shiftwidth() function
- */
-static void f_shiftwidth(typval_T *argvars, typval_T *rettv)
-{
- rettv->vval.v_number = get_sw_value(curbuf);
-}
-
-/*
- * "simplify()" function
- */
-static void f_simplify(typval_T *argvars, typval_T *rettv)
-{
- char_u *p;
-
- p = get_tv_string(&argvars[0]);
- rettv->vval.v_string = vim_strsave(p);
- simplify_filename(rettv->vval.v_string); /* simplify in place */
- rettv->v_type = VAR_STRING;
-}
-
-/*
- * "sin()" function
- */
-static void f_sin(typval_T *argvars, typval_T *rettv)
-{
- float_T f;
-
- rettv->v_type = VAR_FLOAT;
- if (get_float_arg(argvars, &f) == OK)
- rettv->vval.v_float = sin(f);
- else
- rettv->vval.v_float = 0.0;
-}
-
-/*
- * "sinh()" function
- */
-static void f_sinh(typval_T *argvars, typval_T *rettv)
-{
- float_T f;
-
- rettv->v_type = VAR_FLOAT;
- if (get_float_arg(argvars, &f) == OK)
- rettv->vval.v_float = sinh(f);
- else
- rettv->vval.v_float = 0.0;
-}
-
-static int
-item_compare(const void *s1, const void *s2);
-static int
-item_compare2(const void *s1, const void *s2);
-
-static int item_compare_ic;
-static char_u *item_compare_func;
-static dict_T *item_compare_selfdict;
-static int item_compare_func_err;
-static void do_sort_uniq(typval_T *argvars, typval_T *rettv, bool sort);
-#define ITEM_COMPARE_FAIL 999
-
-/*
- * Compare functions for f_sort() and f_uniq() below.
- */
-static int item_compare(const void *s1, const void *s2)
-{
- char_u *p1, *p2;
- char_u *tofree1, *tofree2;
- int res;
- char_u numbuf1[NUMBUFLEN];
- char_u numbuf2[NUMBUFLEN];
-
- p1 = tv2string(&(*(listitem_T **)s1)->li_tv, &tofree1, numbuf1, 0);
- p2 = tv2string(&(*(listitem_T **)s2)->li_tv, &tofree2, numbuf2, 0);
- if (p1 == NULL)
- p1 = (char_u *)"";
- if (p2 == NULL)
- p2 = (char_u *)"";
- if (item_compare_ic)
- res = STRICMP(p1, p2);
- else
- res = STRCMP(p1, p2);
- free(tofree1);
- free(tofree2);
- return res;
-}
-
-static int item_compare2(const void *s1, const void *s2)
-{
- int res;
- typval_T rettv;
- typval_T argv[3];
- int dummy;
-
- /* shortcut after failure in previous call; compare all items equal */
- if (item_compare_func_err)
- return 0;
-
- /* copy the values. This is needed to be able to set v_lock to VAR_FIXED
- * in the copy without changing the original list items. */
- copy_tv(&(*(listitem_T **)s1)->li_tv, &argv[0]);
- copy_tv(&(*(listitem_T **)s2)->li_tv, &argv[1]);
-
- rettv.v_type = VAR_UNKNOWN; /* clear_tv() uses this */
- res = call_func(item_compare_func, (int)STRLEN(item_compare_func),
- &rettv, 2, argv, 0L, 0L, &dummy, TRUE,
- item_compare_selfdict);
- clear_tv(&argv[0]);
- clear_tv(&argv[1]);
-
- if (res == FAIL)
- res = ITEM_COMPARE_FAIL;
- else
- res = get_tv_number_chk(&rettv, &item_compare_func_err);
- if (item_compare_func_err)
- res = ITEM_COMPARE_FAIL; /* return value has wrong type */
- clear_tv(&rettv);
- return res;
-}
-
-/*
- * "sort({list})" function
- */
-static void do_sort_uniq(typval_T *argvars, typval_T *rettv, bool sort)
-{
- list_T *l;
- listitem_T *li;
- listitem_T **ptrs;
- long len;
- long i;
-
- if (argvars[0].v_type != VAR_LIST) {
- EMSG2(_(e_listarg), sort ? "sort()" : "uniq()");
- } else {
- l = argvars[0].vval.v_list;
- if (l == NULL || tv_check_lock(l->lv_lock,
- (char_u *)(sort ? _("sort() argument") : _("uniq() argument")))) {
- return;
- }
- rettv->vval.v_list = l;
- rettv->v_type = VAR_LIST;
- ++l->lv_refcount;
-
- len = list_len(l);
- if (len <= 1)
- return; /* short list sorts pretty quickly */
-
- item_compare_ic = FALSE;
- item_compare_func = NULL;
- item_compare_selfdict = NULL;
-
- if (argvars[1].v_type != VAR_UNKNOWN) {
- /* optional second argument: {func} */
- if (argvars[1].v_type == VAR_FUNC) {
- item_compare_func = argvars[1].vval.v_string;
- } else {
- int error = FALSE;
-
- i = get_tv_number_chk(&argvars[1], &error);
- if (error)
- return; /* type error; errmsg already given */
- if (i == 1)
- item_compare_ic = TRUE;
- else
- item_compare_func = get_tv_string(&argvars[1]);
- }
-
- if (argvars[2].v_type != VAR_UNKNOWN) {
- /* optional third argument: {dict} */
- if (argvars[2].v_type != VAR_DICT) {
- EMSG(_(e_dictreq));
- return;
- }
- item_compare_selfdict = argvars[2].vval.v_dict;
- }
- }
-
- /* Make an array with each entry pointing to an item in the List. */
- ptrs = xmalloc((size_t)(len * sizeof (listitem_T *)));
-
- i = 0;
- if (sort) {
- // sort(): ptrs will be the list to sort.
- for (li = l->lv_first; li != NULL; li = li->li_next) {
- ptrs[i++] = li;
- }
-
- item_compare_func_err = FALSE;
- // Test the compare function.
- if (item_compare_func != NULL
- && item_compare2(&ptrs[0], &ptrs[1]) == ITEM_COMPARE_FAIL) {
- EMSG(_("E702: Sort compare function failed"));
- } else {
- // Sort the array with item pointers.
- qsort(ptrs, (size_t)len, sizeof (listitem_T *),
- item_compare_func == NULL ? item_compare : item_compare2);
-
- if (!item_compare_func_err) {
- // Clear the list and append the items in the sorted order.
- l->lv_first = NULL;
- l->lv_last = NULL;
- l->lv_idx_item = NULL;
- l->lv_len = 0;
-
- for (i = 0; i < len; i++) {
- list_append(l, ptrs[i]);
- }
- }
- }
- } else {
- int (*item_compare_func_ptr)(const void *, const void *);
-
- // f_uniq(): ptrs will be a stack of items to remove.
- item_compare_func_err = FALSE;
- item_compare_func_ptr = item_compare_func ? item_compare2 : item_compare;
-
- for (li = l->lv_first; li != NULL && li->li_next != NULL; li = li->li_next) {
- if (item_compare_func_ptr(&li, &li->li_next) == 0) {
- ptrs[i++] = li;
- }
- if (item_compare_func_err) {
- EMSG(_("E882: Uniq compare function failed"));
- break;
- }
- }
-
- if (!item_compare_func_err) {
- while (--i >= 0) {
- li = ptrs[i]->li_next;
- ptrs[i]->li_next = li->li_next;
- if (li->li_next != NULL) {
- li->li_next->li_prev = ptrs[i];
- } else {
- l->lv_last = ptrs[i];
- }
- list_fix_watch(l, li);
- listitem_free(li);
- l->lv_len--;
- }
- }
- }
-
- free(ptrs);
- }
-}
-
-/// "sort"({list})" function
-static void f_sort(typval_T *argvars, typval_T *rettv)
-{
- do_sort_uniq(argvars, rettv, true);
-}
-
-/// "uniq({list})" function
-static void f_uniq(typval_T *argvars, typval_T *rettv)
-{
- do_sort_uniq(argvars, rettv, false);
-}
-
-/*
- * "soundfold({word})" function
- */
-static void f_soundfold(typval_T *argvars, typval_T *rettv)
-{
- char_u *s;
-
- rettv->v_type = VAR_STRING;
- s = get_tv_string(&argvars[0]);
- rettv->vval.v_string = eval_soundfold(s);
-}
-
-/*
- * "spellbadword()" function
- */
-static void f_spellbadword(typval_T *argvars, typval_T *rettv)
-{
- char_u *word = (char_u *)"";
- hlf_T attr = HLF_COUNT;
- int len = 0;
-
- rettv_list_alloc(rettv);
-
- if (argvars[0].v_type == VAR_UNKNOWN) {
- /* Find the start and length of the badly spelled word. */
- len = spell_move_to(curwin, FORWARD, TRUE, TRUE, &attr);
- if (len != 0)
- word = ml_get_cursor();
- } else if (curwin->w_p_spell && *curbuf->b_s.b_p_spl != NUL) {
- char_u *str = get_tv_string_chk(&argvars[0]);
- int capcol = -1;
-
- if (str != NULL) {
- /* Check the argument for spelling. */
- while (*str != NUL) {
- len = spell_check(curwin, str, &attr, &capcol, FALSE);
- if (attr != HLF_COUNT) {
- word = str;
- break;
- }
- str += len;
- }
- }
- }
-
- list_append_string(rettv->vval.v_list, word, len);
- list_append_string(rettv->vval.v_list, (char_u *)(
- attr == HLF_SPB ? "bad" :
- attr == HLF_SPR ? "rare" :
- attr == HLF_SPL ? "local" :
- attr == HLF_SPC ? "caps" :
- ""), -1);
-}
-
-/*
- * "spellsuggest()" function
- */
-static void f_spellsuggest(typval_T *argvars, typval_T *rettv)
-{
- char_u *str;
- int typeerr = FALSE;
- int maxcount;
- garray_T ga;
- int i;
- listitem_T *li;
- int need_capital = FALSE;
-
- rettv_list_alloc(rettv);
-
- if (curwin->w_p_spell && *curwin->w_s->b_p_spl != NUL) {
- str = get_tv_string(&argvars[0]);
- if (argvars[1].v_type != VAR_UNKNOWN) {
- maxcount = get_tv_number_chk(&argvars[1], &typeerr);
- if (maxcount <= 0)
- return;
- if (argvars[2].v_type != VAR_UNKNOWN) {
- need_capital = get_tv_number_chk(&argvars[2], &typeerr);
- if (typeerr)
- return;
- }
- } else
- maxcount = 25;
-
- spell_suggest_list(&ga, str, maxcount, need_capital, FALSE);
-
- for (i = 0; i < ga.ga_len; ++i) {
- str = ((char_u **)ga.ga_data)[i];
-
- li = listitem_alloc();
- if (li == NULL)
- free(str);
- else {
- li->li_tv.v_type = VAR_STRING;
- li->li_tv.v_lock = 0;
- li->li_tv.vval.v_string = str;
- list_append(rettv->vval.v_list, li);
- }
- }
- ga_clear(&ga);
- }
-}
-
-static void f_split(typval_T *argvars, typval_T *rettv)
-{
- char_u *str;
- char_u *end;
- char_u *pat = NULL;
- regmatch_T regmatch;
- char_u patbuf[NUMBUFLEN];
- char_u *save_cpo;
- int match;
- colnr_T col = 0;
- int keepempty = FALSE;
- int typeerr = FALSE;
-
- /* Make 'cpoptions' empty, the 'l' flag should not be used here. */
- save_cpo = p_cpo;
- p_cpo = (char_u *)"";
-
- str = get_tv_string(&argvars[0]);
- if (argvars[1].v_type != VAR_UNKNOWN) {
- pat = get_tv_string_buf_chk(&argvars[1], patbuf);
- if (pat == NULL)
- typeerr = TRUE;
- if (argvars[2].v_type != VAR_UNKNOWN)
- keepempty = get_tv_number_chk(&argvars[2], &typeerr);
- }
- if (pat == NULL || *pat == NUL)
- pat = (char_u *)"[\\x01- ]\\+";
-
- rettv_list_alloc(rettv);
-
- if (typeerr)
- return;
-
- regmatch.regprog = vim_regcomp(pat, RE_MAGIC + RE_STRING);
- if (regmatch.regprog != NULL) {
- regmatch.rm_ic = FALSE;
- while (*str != NUL || keepempty) {
- if (*str == NUL)
- match = FALSE; /* empty item at the end */
- else
- match = vim_regexec_nl(&regmatch, str, col);
- if (match)
- end = regmatch.startp[0];
- else
- end = str + STRLEN(str);
- if (keepempty || end > str || (rettv->vval.v_list->lv_len > 0
- && *str != NUL && match && end <
- regmatch.endp[0])) {
- list_append_string(rettv->vval.v_list, str, (int)(end - str));
- }
- if (!match)
- break;
- /* Advance to just after the match. */
- if (regmatch.endp[0] > str)
- col = 0;
- else {
- /* Don't get stuck at the same match. */
- col = (*mb_ptr2len)(regmatch.endp[0]);
- }
- str = regmatch.endp[0];
- }
-
- vim_regfree(regmatch.regprog);
- }
-
- p_cpo = save_cpo;
-}
-
-/*
- * "sqrt()" function
- */
-static void f_sqrt(typval_T *argvars, typval_T *rettv)
-{
- float_T f;
-
- rettv->v_type = VAR_FLOAT;
- if (get_float_arg(argvars, &f) == OK)
- rettv->vval.v_float = sqrt(f);
- else
- rettv->vval.v_float = 0.0;
-}
-
-/*
- * "str2float()" function
- */
-static void f_str2float(typval_T *argvars, typval_T *rettv)
-{
- char_u *p = skipwhite(get_tv_string(&argvars[0]));
-
- if (*p == '+')
- p = skipwhite(p + 1);
- (void)string2float(p, &rettv->vval.v_float);
- rettv->v_type = VAR_FLOAT;
-}
-
-/*
- * "str2nr()" function
- */
-static void f_str2nr(typval_T *argvars, typval_T *rettv)
-{
- int base = 10;
- char_u *p;
- long n;
-
- if (argvars[1].v_type != VAR_UNKNOWN) {
- base = get_tv_number(&argvars[1]);
- if (base != 8 && base != 10 && base != 16) {
- EMSG(_(e_invarg));
- return;
- }
- }
-
- p = skipwhite(get_tv_string(&argvars[0]));
- if (*p == '+')
- p = skipwhite(p + 1);
- vim_str2nr(p, NULL, NULL, base == 8 ? 2 : 0, base == 16 ? 2 : 0, &n, NULL);
- rettv->vval.v_number = n;
-}
-
-/*
- * "strftime({format}[, {time}])" function
- */
-static void f_strftime(typval_T *argvars, typval_T *rettv)
-{
- char_u result_buf[256];
- time_t seconds;
- char_u *p;
-
- rettv->v_type = VAR_STRING;
-
- p = get_tv_string(&argvars[0]);
- if (argvars[1].v_type == VAR_UNKNOWN)
- seconds = time(NULL);
- else
- seconds = (time_t)get_tv_number(&argvars[1]);
-
- struct tm curtime;
- struct tm *curtime_ptr = os_localtime_r(&seconds, &curtime);
- /* MSVC returns NULL for an invalid value of seconds. */
- if (curtime_ptr == NULL)
- rettv->vval.v_string = vim_strsave((char_u *)_("(Invalid)"));
- else {
- vimconv_T conv;
- char_u *enc;
-
- conv.vc_type = CONV_NONE;
- enc = enc_locale();
- convert_setup(&conv, p_enc, enc);
- if (conv.vc_type != CONV_NONE)
- p = string_convert(&conv, p, NULL);
- if (p != NULL)
- (void)strftime((char *)result_buf, sizeof(result_buf),
- (char *)p, curtime_ptr);
- else
- result_buf[0] = NUL;
-
- if (conv.vc_type != CONV_NONE)
- free(p);
- convert_setup(&conv, enc, p_enc);
- if (conv.vc_type != CONV_NONE)
- rettv->vval.v_string = string_convert(&conv, result_buf, NULL);
- else
- rettv->vval.v_string = vim_strsave(result_buf);
-
- /* Release conversion descriptors */
- convert_setup(&conv, NULL, NULL);
- free(enc);
- }
-}
-
-/*
- * "stridx()" function
- */
-static void f_stridx(typval_T *argvars, typval_T *rettv)
-{
- char_u buf[NUMBUFLEN];
- char_u *needle;
- char_u *haystack;
- char_u *save_haystack;
- char_u *pos;
- int start_idx;
-
- needle = get_tv_string_chk(&argvars[1]);
- save_haystack = haystack = get_tv_string_buf_chk(&argvars[0], buf);
- rettv->vval.v_number = -1;
- if (needle == NULL || haystack == NULL)
- return; /* type error; errmsg already given */
-
- if (argvars[2].v_type != VAR_UNKNOWN) {
- int error = FALSE;
-
- start_idx = get_tv_number_chk(&argvars[2], &error);
- if (error || start_idx >= (int)STRLEN(haystack))
- return;
- if (start_idx >= 0)
- haystack += start_idx;
- }
-
- pos = (char_u *)strstr((char *)haystack, (char *)needle);
- if (pos != NULL)
- rettv->vval.v_number = (varnumber_T)(pos - save_haystack);
-}
-
-/*
- * "string()" function
- */
-static void f_string(typval_T *argvars, typval_T *rettv)
-{
- char_u *tofree;
- char_u numbuf[NUMBUFLEN];
-
- rettv->v_type = VAR_STRING;
- rettv->vval.v_string = tv2string(&argvars[0], &tofree, numbuf, 0);
- /* Make a copy if we have a value but it's not in allocated memory. */
- if (rettv->vval.v_string != NULL && tofree == NULL)
- rettv->vval.v_string = vim_strsave(rettv->vval.v_string);
-}
-
-/*
- * "strlen()" function
- */
-static void f_strlen(typval_T *argvars, typval_T *rettv)
-{
- rettv->vval.v_number = (varnumber_T)(STRLEN(
- get_tv_string(&argvars[0])));
-}
-
-/*
- * "strchars()" function
- */
-static void f_strchars(typval_T *argvars, typval_T *rettv)
-{
- char_u *s = get_tv_string(&argvars[0]);
- varnumber_T len = 0;
-
- while (*s != NUL) {
- mb_cptr2char_adv(&s);
- ++len;
- }
- rettv->vval.v_number = len;
-}
-
-/*
- * "strdisplaywidth()" function
- */
-static void f_strdisplaywidth(typval_T *argvars, typval_T *rettv)
-{
- char_u *s = get_tv_string(&argvars[0]);
- int col = 0;
-
- if (argvars[1].v_type != VAR_UNKNOWN)
- col = get_tv_number(&argvars[1]);
-
- rettv->vval.v_number = (varnumber_T)(linetabsize_col(col, s) - col);
-}
-
-/*
- * "strwidth()" function
- */
-static void f_strwidth(typval_T *argvars, typval_T *rettv)
-{
- char_u *s = get_tv_string(&argvars[0]);
-
- rettv->vval.v_number = (varnumber_T)(
- mb_string2cells(s, -1)
- );
-}
-
-/*
- * "strpart()" function
- */
-static void f_strpart(typval_T *argvars, typval_T *rettv)
-{
- char_u *p;
- int n;
- int len;
- int slen;
- int error = FALSE;
-
- p = get_tv_string(&argvars[0]);
- slen = (int)STRLEN(p);
-
- n = get_tv_number_chk(&argvars[1], &error);
- if (error)
- len = 0;
- else if (argvars[2].v_type != VAR_UNKNOWN)
- len = get_tv_number(&argvars[2]);
- else
- len = slen - n; /* default len: all bytes that are available. */
-
- /*
- * Only return the overlap between the specified part and the actual
- * string.
- */
- if (n < 0) {
- len += n;
- n = 0;
- } else if (n > slen)
- n = slen;
- if (len < 0)
- len = 0;
- else if (n + len > slen)
- len = slen - n;
-
- rettv->v_type = VAR_STRING;
- rettv->vval.v_string = vim_strnsave(p + n, len);
-}
-
-/*
- * "strridx()" function
- */
-static void f_strridx(typval_T *argvars, typval_T *rettv)
-{
- char_u buf[NUMBUFLEN];
- char_u *needle;
- char_u *haystack;
- char_u *rest;
- char_u *lastmatch = NULL;
- int haystack_len, end_idx;
-
- needle = get_tv_string_chk(&argvars[1]);
- haystack = get_tv_string_buf_chk(&argvars[0], buf);
-
- rettv->vval.v_number = -1;
- if (needle == NULL || haystack == NULL)
- return; /* type error; errmsg already given */
-
- haystack_len = (int)STRLEN(haystack);
- if (argvars[2].v_type != VAR_UNKNOWN) {
- /* Third argument: upper limit for index */
- end_idx = get_tv_number_chk(&argvars[2], NULL);
- if (end_idx < 0)
- return; /* can never find a match */
- } else
- end_idx = haystack_len;
-
- if (*needle == NUL) {
- /* Empty string matches past the end. */
- lastmatch = haystack + end_idx;
- } else {
- for (rest = haystack; *rest != NUL; ++rest) {
- rest = (char_u *)strstr((char *)rest, (char *)needle);
- if (rest == NULL || rest > haystack + end_idx)
- break;
- lastmatch = rest;
- }
- }
-
- if (lastmatch == NULL)
- rettv->vval.v_number = -1;
- else
- rettv->vval.v_number = (varnumber_T)(lastmatch - haystack);
-}
-
-/*
- * "strtrans()" function
- */
-static void f_strtrans(typval_T *argvars, typval_T *rettv)
-{
- rettv->v_type = VAR_STRING;
- rettv->vval.v_string = transstr(get_tv_string(&argvars[0]));
-}
-
-/*
- * "submatch()" function
- */
-static void f_submatch(typval_T *argvars, typval_T *rettv)
-{
- int error = FALSE;
- int no = (int)get_tv_number_chk(&argvars[0], &error);
- if (error) {
- return;
- }
-
- int retList = 0;
-
- if (argvars[1].v_type != VAR_UNKNOWN) {
- retList = get_tv_number_chk(&argvars[1], &error);
- if (error) {
- return;
- }
- }
-
- if (retList == 0) {
- rettv->v_type = VAR_STRING;
- rettv->vval.v_string = reg_submatch(no);
- } else {
- rettv->v_type = VAR_LIST;
- rettv->vval.v_list = reg_submatch_list(no);
- }
-}
-
-/*
- * "substitute()" function
- */
-static void f_substitute(typval_T *argvars, typval_T *rettv)
-{
- char_u patbuf[NUMBUFLEN];
- char_u subbuf[NUMBUFLEN];
- char_u flagsbuf[NUMBUFLEN];
-
- char_u *str = get_tv_string_chk(&argvars[0]);
- char_u *pat = get_tv_string_buf_chk(&argvars[1], patbuf);
- char_u *sub = get_tv_string_buf_chk(&argvars[2], subbuf);
- char_u *flg = get_tv_string_buf_chk(&argvars[3], flagsbuf);
-
- rettv->v_type = VAR_STRING;
- if (str == NULL || pat == NULL || sub == NULL || flg == NULL)
- rettv->vval.v_string = NULL;
- else
- rettv->vval.v_string = do_string_sub(str, pat, sub, flg);
-}
-
-/*
- * "synID(lnum, col, trans)" function
- */
-static void f_synID(typval_T *argvars, typval_T *rettv)
-{
- int id = 0;
- long lnum;
- long col;
- int trans;
- int transerr = FALSE;
-
- lnum = get_tv_lnum(argvars); /* -1 on type error */
- col = get_tv_number(&argvars[1]) - 1; /* -1 on type error */
- trans = get_tv_number_chk(&argvars[2], &transerr);
-
- if (!transerr && lnum >= 1 && lnum <= curbuf->b_ml.ml_line_count
- && col >= 0 && col < (long)STRLEN(ml_get(lnum)))
- id = syn_get_id(curwin, lnum, (colnr_T)col, trans, NULL, FALSE);
-
- rettv->vval.v_number = id;
-}
-
-/*
- * "synIDattr(id, what [, mode])" function
- */
-static void f_synIDattr(typval_T *argvars, typval_T *rettv)
-{
- char_u *p = NULL;
- int id;
- char_u *what;
- char_u *mode;
- char_u modebuf[NUMBUFLEN];
- int modec;
-
- id = get_tv_number(&argvars[0]);
- what = get_tv_string(&argvars[1]);
- if (argvars[2].v_type != VAR_UNKNOWN) {
- mode = get_tv_string_buf(&argvars[2], modebuf);
- modec = TOLOWER_ASC(mode[0]);
- if (modec != 't' && modec != 'c' && modec != 'g')
- modec = 0; /* replace invalid with current */
- } else {
- if (t_colors > 1)
- modec = 'c';
- else
- modec = 't';
- }
-
-
- switch (TOLOWER_ASC(what[0])) {
- case 'b':
- if (TOLOWER_ASC(what[1]) == 'g') /* bg[#] */
- p = highlight_color(id, what, modec);
- else /* bold */
- p = highlight_has_attr(id, HL_BOLD, modec);
- break;
-
- case 'f': /* fg[#] or font */
- p = highlight_color(id, what, modec);
- break;
-
- case 'i':
- if (TOLOWER_ASC(what[1]) == 'n') /* inverse */
- p = highlight_has_attr(id, HL_INVERSE, modec);
- else /* italic */
- p = highlight_has_attr(id, HL_ITALIC, modec);
- break;
-
- case 'n': /* name */
- p = get_highlight_name(NULL, id - 1);
- break;
-
- case 'r': /* reverse */
- p = highlight_has_attr(id, HL_INVERSE, modec);
- break;
-
- case 's':
- if (TOLOWER_ASC(what[1]) == 'p') /* sp[#] */
- p = highlight_color(id, what, modec);
- else /* standout */
- p = highlight_has_attr(id, HL_STANDOUT, modec);
- break;
-
- case 'u':
- if (STRLEN(what) <= 5 || TOLOWER_ASC(what[5]) != 'c')
- /* underline */
- p = highlight_has_attr(id, HL_UNDERLINE, modec);
- else
- /* undercurl */
- p = highlight_has_attr(id, HL_UNDERCURL, modec);
- break;
- }
-
- if (p != NULL)
- p = vim_strsave(p);
- rettv->v_type = VAR_STRING;
- rettv->vval.v_string = p;
-}
-
-/*
- * "synIDtrans(id)" function
- */
-static void f_synIDtrans(typval_T *argvars, typval_T *rettv)
-{
- int id;
-
- id = get_tv_number(&argvars[0]);
-
- if (id > 0)
- id = syn_get_final_id(id);
- else
- id = 0;
-
- rettv->vval.v_number = id;
-}
-
-/*
- * "synconcealed(lnum, col)" function
- */
-static void f_synconcealed(typval_T *argvars, typval_T *rettv)
-{
- long lnum;
- long col;
- int syntax_flags = 0;
- int cchar;
- int matchid = 0;
- char_u str[NUMBUFLEN];
-
- rettv->v_type = VAR_LIST;
- rettv->vval.v_list = NULL;
-
- lnum = get_tv_lnum(argvars); /* -1 on type error */
- col = get_tv_number(&argvars[1]) - 1; /* -1 on type error */
-
- memset(str, NUL, sizeof(str));
-
- rettv_list_alloc(rettv);
- if (lnum >= 1 && lnum <= curbuf->b_ml.ml_line_count && col >= 0
- && col <= (long)STRLEN(ml_get(lnum)) && curwin->w_p_cole > 0) {
- (void)syn_get_id(curwin, lnum, col, FALSE, NULL, FALSE);
- syntax_flags = get_syntax_info(&matchid);
-
- // get the conceal character
- if ((syntax_flags & HL_CONCEAL) && curwin->w_p_cole < 3) {
- cchar = syn_get_sub_char();
- if (cchar == NUL && curwin->w_p_cole == 1 && lcs_conceal != NUL) {
- cchar = lcs_conceal;
- }
- if (cchar != NUL) {
- if (has_mbyte)
- (*mb_char2bytes)(cchar, str);
- else
- str[0] = cchar;
- }
- }
- }
-
- list_append_number(rettv->vval.v_list, (syntax_flags & HL_CONCEAL) != 0);
- // -1 to auto-determine strlen
- list_append_string(rettv->vval.v_list, str, -1);
- list_append_number(rettv->vval.v_list, matchid);
-}
-
-/*
- * "synstack(lnum, col)" function
- */
-static void f_synstack(typval_T *argvars, typval_T *rettv)
-{
- long lnum;
- long col;
-
- rettv->v_type = VAR_LIST;
- rettv->vval.v_list = NULL;
-
- lnum = get_tv_lnum(argvars); /* -1 on type error */
- col = get_tv_number(&argvars[1]) - 1; /* -1 on type error */
-
- if (lnum >= 1
- && lnum <= curbuf->b_ml.ml_line_count
- && col >= 0
- && col <= (long)STRLEN(ml_get(lnum))) {
- rettv_list_alloc(rettv);
- (void)syn_get_id(curwin, lnum, (colnr_T)col, FALSE, NULL, TRUE);
-
- int id;
- int i = 0;
- while ((id = syn_get_stack_item(i++)) >= 0) {
- list_append_number(rettv->vval.v_list, id);
- }
- }
-}
-
-/*
- * "system()" function
- */
-static void f_system(typval_T *argvars, typval_T *rettv)
-{
- char_u *res = NULL;
- char_u *p;
- char_u *infile = NULL;
- char_u buf[NUMBUFLEN];
- int err = FALSE;
- FILE *fd;
-
- if (check_restricted() || check_secure())
- goto done;
-
- if (argvars[1].v_type != VAR_UNKNOWN) {
- /*
- * Write the string to a temp file, to be used for input of the shell
- * command.
- */
- if ((infile = vim_tempname('i')) == NULL) {
- EMSG(_(e_notmp));
- goto done;
- }
-
- fd = mch_fopen((char *)infile, WRITEBIN);
- if (fd == NULL) {
- EMSG2(_(e_notopen), infile);
- goto done;
- }
- p = get_tv_string_buf_chk(&argvars[1], buf);
- if (p == NULL) {
- fclose(fd);
- goto done; /* type error; errmsg already given */
- }
- if (fwrite(p, STRLEN(p), 1, fd) != 1)
- err = TRUE;
- if (fclose(fd) != 0)
- err = TRUE;
- if (err) {
- EMSG(_("E677: Error writing temp file"));
- goto done;
- }
- }
-
- res = get_cmd_output(get_tv_string(&argvars[0]), infile,
- kShellOptSilent | kShellOptCooked);
-
-#ifdef USE_CR
- /* translate <CR> into <NL> */
- if (res != NULL) {
- char_u *s;
-
- for (s = res; *s; ++s) {
- if (*s == CAR)
- *s = NL;
- }
- }
-#else
-# ifdef USE_CRNL
- /* translate <CR><NL> into <NL> */
- if (res != NULL) {
- char_u *s, *d;
-
- d = res;
- for (s = res; *s; ++s) {
- if (s[0] == CAR && s[1] == NL)
- ++s;
- *d++ = *s;
- }
- *d = NUL;
- }
-# endif
-#endif
-
-done:
- if (infile != NULL) {
- os_remove((char *)infile);
- free(infile);
- }
- rettv->v_type = VAR_STRING;
- rettv->vval.v_string = res;
-}
-
-/*
- * "tabpagebuflist()" function
- */
-static void f_tabpagebuflist(typval_T *argvars, typval_T *rettv)
-{
- tabpage_T *tp;
- win_T *wp = NULL;
-
- if (argvars[0].v_type == VAR_UNKNOWN)
- wp = firstwin;
- else {
- tp = find_tabpage((int)get_tv_number(&argvars[0]));
- if (tp != NULL)
- wp = (tp == curtab) ? firstwin : tp->tp_firstwin;
- }
- if (wp != NULL) {
- rettv_list_alloc(rettv);
- while (wp != NULL) {
- list_append_number(rettv->vval.v_list, wp->w_buffer->b_fnum);
- wp = wp->w_next;
- }
- }
-}
-
-
-/*
- * "tabpagenr()" function
- */
-static void f_tabpagenr(typval_T *argvars, typval_T *rettv)
-{
- int nr = 1;
- char_u *arg;
-
- if (argvars[0].v_type != VAR_UNKNOWN) {
- arg = get_tv_string_chk(&argvars[0]);
- nr = 0;
- if (arg != NULL) {
- if (STRCMP(arg, "$") == 0)
- nr = tabpage_index(NULL) - 1;
- else
- EMSG2(_(e_invexpr2), arg);
- }
- } else
- nr = tabpage_index(curtab);
- rettv->vval.v_number = nr;
-}
-
-
-static int get_winnr(tabpage_T *tp, typval_T *argvar);
-
-/*
- * Common code for tabpagewinnr() and winnr().
- */
-static int get_winnr(tabpage_T *tp, typval_T *argvar)
-{
- win_T *twin;
- int nr = 1;
- win_T *wp;
- char_u *arg;
-
- twin = (tp == curtab) ? curwin : tp->tp_curwin;
- if (argvar->v_type != VAR_UNKNOWN) {
- arg = get_tv_string_chk(argvar);
- if (arg == NULL)
- nr = 0; /* type error; errmsg already given */
- else if (STRCMP(arg, "$") == 0)
- twin = (tp == curtab) ? lastwin : tp->tp_lastwin;
- else if (STRCMP(arg, "#") == 0) {
- twin = (tp == curtab) ? prevwin : tp->tp_prevwin;
- if (twin == NULL)
- nr = 0;
- } else {
- EMSG2(_(e_invexpr2), arg);
- nr = 0;
- }
- }
-
- if (nr > 0)
- for (wp = (tp == curtab) ? firstwin : tp->tp_firstwin;
- wp != twin; wp = wp->w_next) {
- if (wp == NULL) {
- /* didn't find it in this tabpage */
- nr = 0;
- break;
- }
- ++nr;
- }
- return nr;
-}
-
-/*
- * "tabpagewinnr()" function
- */
-static void f_tabpagewinnr(typval_T *argvars, typval_T *rettv)
-{
- int nr = 1;
- tabpage_T *tp;
-
- tp = find_tabpage((int)get_tv_number(&argvars[0]));
- if (tp == NULL)
- nr = 0;
- else
- nr = get_winnr(tp, &argvars[1]);
- rettv->vval.v_number = nr;
-}
-
-
-/*
- * "tagfiles()" function
- */
-static void f_tagfiles(typval_T *argvars, typval_T *rettv)
-{
- char_u *fname;
- tagname_T tn;
-
- rettv_list_alloc(rettv);
- fname = alloc(MAXPATHL);
-
- int first = TRUE;
- while (get_tagfname(&tn, first, fname) == OK) {
- list_append_string(rettv->vval.v_list, fname, -1);
- first = FALSE;
- }
-
- tagname_free(&tn);
- free(fname);
-}
-
-/*
- * "taglist()" function
- */
-static void f_taglist(typval_T *argvars, typval_T *rettv)
-{
- char_u *tag_pattern;
-
- tag_pattern = get_tv_string(&argvars[0]);
-
- rettv->vval.v_number = FALSE;
- if (*tag_pattern == NUL)
- return;
-
- rettv_list_alloc(rettv);
- (void)get_tags(rettv->vval.v_list, tag_pattern);
-}
-
-/*
- * "tempname()" function
- */
-static void f_tempname(typval_T *argvars, typval_T *rettv)
-{
- static int x = 'A';
-
- rettv->v_type = VAR_STRING;
- rettv->vval.v_string = vim_tempname(x);
-
- /* Advance 'x' to use A-Z and 0-9, so that there are at least 34 different
- * names. Skip 'I' and 'O', they are used for shell redirection. */
- do {
- if (x == 'Z')
- x = '0';
- else if (x == '9')
- x = 'A';
- else {
- ++x;
- }
- } while (x == 'I' || x == 'O');
-}
-
-/*
- * "test(list)" function: Just checking the walls...
- */
-static void f_test(typval_T *argvars, typval_T *rettv)
-{
- /* Used for unit testing. Change the code below to your liking. */
-}
-
-/*
- * "tan()" function
- */
-static void f_tan(typval_T *argvars, typval_T *rettv)
-{
- float_T f;
-
- rettv->v_type = VAR_FLOAT;
- if (get_float_arg(argvars, &f) == OK)
- rettv->vval.v_float = tan(f);
- else
- rettv->vval.v_float = 0.0;
-}
-
-/*
- * "tanh()" function
- */
-static void f_tanh(typval_T *argvars, typval_T *rettv)
-{
- float_T f;
-
- rettv->v_type = VAR_FLOAT;
- if (get_float_arg(argvars, &f) == OK)
- rettv->vval.v_float = tanh(f);
- else
- rettv->vval.v_float = 0.0;
-}
-
-/*
- * "tolower(string)" function
- */
-static void f_tolower(typval_T *argvars, typval_T *rettv)
-{
- char_u *p;
-
- p = vim_strsave(get_tv_string(&argvars[0]));
- rettv->v_type = VAR_STRING;
- rettv->vval.v_string = p;
-
- if (p != NULL)
- while (*p != NUL) {
- int l;
-
- if (enc_utf8) {
- int c, lc;
-
- c = utf_ptr2char(p);
- lc = utf_tolower(c);
- l = utf_ptr2len(p);
- /* TODO: reallocate string when byte count changes. */
- if (utf_char2len(lc) == l)
- utf_char2bytes(lc, p);
- p += l;
- } else if (has_mbyte && (l = (*mb_ptr2len)(p)) > 1)
- p += l; /* skip multi-byte character */
- else {
- *p = TOLOWER_LOC(*p); /* note that tolower() can be a macro */
- ++p;
- }
- }
-}
-
-/*
- * "toupper(string)" function
- */
-static void f_toupper(typval_T *argvars, typval_T *rettv)
-{
- rettv->v_type = VAR_STRING;
- rettv->vval.v_string = strup_save(get_tv_string(&argvars[0]));
-}
-
-/*
- * "tr(string, fromstr, tostr)" function
- */
-static void f_tr(typval_T *argvars, typval_T *rettv)
-{
- char_u *in_str;
- char_u *fromstr;
- char_u *tostr;
- char_u *p;
- int inlen;
- int fromlen;
- int tolen;
- int idx;
- char_u *cpstr;
- int cplen;
- int first = TRUE;
- char_u buf[NUMBUFLEN];
- char_u buf2[NUMBUFLEN];
- garray_T ga;
-
- in_str = get_tv_string(&argvars[0]);
- fromstr = get_tv_string_buf_chk(&argvars[1], buf);
- tostr = get_tv_string_buf_chk(&argvars[2], buf2);
-
- /* Default return value: empty string. */
- rettv->v_type = VAR_STRING;
- rettv->vval.v_string = NULL;
- if (fromstr == NULL || tostr == NULL)
- return; /* type error; errmsg already given */
- ga_init(&ga, (int)sizeof(char), 80);
-
- if (!has_mbyte)
- /* not multi-byte: fromstr and tostr must be the same length */
- if (STRLEN(fromstr) != STRLEN(tostr)) {
-error:
- EMSG2(_(e_invarg2), fromstr);
- ga_clear(&ga);
- return;
- }
-
- /* fromstr and tostr have to contain the same number of chars */
- while (*in_str != NUL) {
- if (has_mbyte) {
- inlen = (*mb_ptr2len)(in_str);
- cpstr = in_str;
- cplen = inlen;
- idx = 0;
- for (p = fromstr; *p != NUL; p += fromlen) {
- fromlen = (*mb_ptr2len)(p);
- if (fromlen == inlen && STRNCMP(in_str, p, inlen) == 0) {
- for (p = tostr; *p != NUL; p += tolen) {
- tolen = (*mb_ptr2len)(p);
- if (idx-- == 0) {
- cplen = tolen;
- cpstr = p;
- break;
- }
- }
- if (*p == NUL) /* tostr is shorter than fromstr */
- goto error;
- break;
- }
- ++idx;
- }
-
- if (first && cpstr == in_str) {
- /* Check that fromstr and tostr have the same number of
- * (multi-byte) characters. Done only once when a character
- * of in_str doesn't appear in fromstr. */
- first = FALSE;
- for (p = tostr; *p != NUL; p += tolen) {
- tolen = (*mb_ptr2len)(p);
- --idx;
- }
- if (idx != 0)
- goto error;
- }
-
- ga_grow(&ga, cplen);
- memmove((char *)ga.ga_data + ga.ga_len, cpstr, (size_t)cplen);
- ga.ga_len += cplen;
-
- in_str += inlen;
- } else {
- /* When not using multi-byte chars we can do it faster. */
- p = vim_strchr(fromstr, *in_str);
- if (p != NULL)
- ga_append(&ga, tostr[p - fromstr]);
- else
- ga_append(&ga, *in_str);
- ++in_str;
- }
- }
-
- /* add a terminating NUL */
- ga_grow(&ga, 1);
- ga_append(&ga, NUL);
-
- rettv->vval.v_string = ga.ga_data;
-}
-
-/*
- * "trunc({float})" function
- */
-static void f_trunc(typval_T *argvars, typval_T *rettv)
-{
- float_T f;
-
- rettv->v_type = VAR_FLOAT;
- if (get_float_arg(argvars, &f) == OK)
- /* trunc() is not in C90, use floor() or ceil() instead. */
- rettv->vval.v_float = f > 0 ? floor(f) : ceil(f);
- else
- rettv->vval.v_float = 0.0;
-}
-
-/*
- * "type(expr)" function
- */
-static void f_type(typval_T *argvars, typval_T *rettv)
-{
- int n;
-
- switch (argvars[0].v_type) {
- case VAR_NUMBER: n = 0; break;
- case VAR_STRING: n = 1; break;
- case VAR_FUNC: n = 2; break;
- case VAR_LIST: n = 3; break;
- case VAR_DICT: n = 4; break;
- case VAR_FLOAT: n = 5; break;
- default: EMSG2(_(e_intern2), "f_type()"); n = 0; break;
- }
- rettv->vval.v_number = n;
-}
-
-/*
- * "undofile(name)" function
- */
-static void f_undofile(typval_T *argvars, typval_T *rettv)
-{
- rettv->v_type = VAR_STRING;
- {
- char_u *fname = get_tv_string(&argvars[0]);
-
- if (*fname == NUL) {
- /* If there is no file name there will be no undo file. */
- rettv->vval.v_string = NULL;
- } else {
- char_u *ffname = FullName_save(fname, FALSE);
-
- if (ffname != NULL)
- rettv->vval.v_string = u_get_undo_file_name(ffname, FALSE);
- free(ffname);
- }
- }
-}
-
-/*
- * "undotree()" function
- */
-static void f_undotree(typval_T *argvars, typval_T *rettv)
-{
- if (rettv_dict_alloc(rettv) == OK) {
- dict_T *dict = rettv->vval.v_dict;
- list_T *list;
-
- dict_add_nr_str(dict, "synced", (long)curbuf->b_u_synced, NULL);
- dict_add_nr_str(dict, "seq_last", curbuf->b_u_seq_last, NULL);
- dict_add_nr_str(dict, "save_last",
- (long)curbuf->b_u_save_nr_last, NULL);
- dict_add_nr_str(dict, "seq_cur", curbuf->b_u_seq_cur, NULL);
- dict_add_nr_str(dict, "time_cur", (long)curbuf->b_u_time_cur, NULL);
- dict_add_nr_str(dict, "save_cur", (long)curbuf->b_u_save_nr_cur, NULL);
-
- list = list_alloc();
- if (list != NULL) {
- u_eval_tree(curbuf->b_u_oldhead, list);
- dict_add_list(dict, "entries", list);
- }
- }
-}
-
-/*
- * "values(dict)" function
- */
-static void f_values(typval_T *argvars, typval_T *rettv)
-{
- dict_list(argvars, rettv, 1);
-}
-
-/*
- * "virtcol(string)" function
- */
-static void f_virtcol(typval_T *argvars, typval_T *rettv)
-{
- colnr_T vcol = 0;
- pos_T *fp;
- int fnum = curbuf->b_fnum;
-
- fp = var2fpos(&argvars[0], FALSE, &fnum);
- if (fp != NULL && fp->lnum <= curbuf->b_ml.ml_line_count
- && fnum == curbuf->b_fnum) {
- getvvcol(curwin, fp, NULL, NULL, &vcol);
- ++vcol;
- }
-
- rettv->vval.v_number = vcol;
-}
-
-/*
- * "visualmode()" function
- */
-static void f_visualmode(typval_T *argvars, typval_T *rettv)
-{
- char_u str[2];
-
- rettv->v_type = VAR_STRING;
- str[0] = curbuf->b_visual_mode_eval;
- str[1] = NUL;
- rettv->vval.v_string = vim_strsave(str);
-
- /* A non-zero number or non-empty string argument: reset mode. */
- if (non_zero_arg(&argvars[0]))
- curbuf->b_visual_mode_eval = NUL;
-}
-
-/*
- * "wildmenumode()" function
- */
-static void f_wildmenumode(typval_T *argvars, typval_T *rettv)
-{
- if (wild_menu_showing)
- rettv->vval.v_number = 1;
-}
-
-/*
- * "winbufnr(nr)" function
- */
-static void f_winbufnr(typval_T *argvars, typval_T *rettv)
-{
- win_T *wp;
-
- wp = find_win_by_nr(&argvars[0], NULL);
- if (wp == NULL)
- rettv->vval.v_number = -1;
- else
- rettv->vval.v_number = wp->w_buffer->b_fnum;
-}
-
-/*
- * "wincol()" function
- */
-static void f_wincol(typval_T *argvars, typval_T *rettv)
-{
- validate_cursor();
- rettv->vval.v_number = curwin->w_wcol + 1;
-}
-
-/*
- * "winheight(nr)" function
- */
-static void f_winheight(typval_T *argvars, typval_T *rettv)
-{
- win_T *wp;
-
- wp = find_win_by_nr(&argvars[0], NULL);
- if (wp == NULL)
- rettv->vval.v_number = -1;
- else
- rettv->vval.v_number = wp->w_height;
-}
-
-/*
- * "winline()" function
- */
-static void f_winline(typval_T *argvars, typval_T *rettv)
-{
- validate_cursor();
- rettv->vval.v_number = curwin->w_wrow + 1;
-}
-
-/*
- * "winnr()" function
- */
-static void f_winnr(typval_T *argvars, typval_T *rettv)
-{
- int nr = 1;
-
- nr = get_winnr(curtab, &argvars[0]);
- rettv->vval.v_number = nr;
-}
-
-/*
- * "winrestcmd()" function
- */
-static void f_winrestcmd(typval_T *argvars, typval_T *rettv)
-{
- win_T *wp;
- int winnr = 1;
- garray_T ga;
- char_u buf[50];
-
- ga_init(&ga, (int)sizeof(char), 70);
- for (wp = firstwin; wp != NULL; wp = wp->w_next) {
- sprintf((char *)buf, "%dresize %d|", winnr, wp->w_height);
- ga_concat(&ga, buf);
- sprintf((char *)buf, "vert %dresize %d|", winnr, wp->w_width);
- ga_concat(&ga, buf);
- ++winnr;
- }
- ga_append(&ga, NUL);
-
- rettv->vval.v_string = ga.ga_data;
- rettv->v_type = VAR_STRING;
-}
-
-/*
- * "winrestview()" function
- */
-static void f_winrestview(typval_T *argvars, typval_T *rettv)
-{
- dict_T *dict;
-
- if (argvars[0].v_type != VAR_DICT
- || (dict = argvars[0].vval.v_dict) == NULL)
- EMSG(_(e_invarg));
- else {
- curwin->w_cursor.lnum = get_dict_number(dict, (char_u *)"lnum");
- curwin->w_cursor.col = get_dict_number(dict, (char_u *)"col");
- curwin->w_cursor.coladd = get_dict_number(dict, (char_u *)"coladd");
- curwin->w_curswant = get_dict_number(dict, (char_u *)"curswant");
- curwin->w_set_curswant = FALSE;
-
- set_topline(curwin, get_dict_number(dict, (char_u *)"topline"));
- curwin->w_topfill = get_dict_number(dict, (char_u *)"topfill");
- curwin->w_leftcol = get_dict_number(dict, (char_u *)"leftcol");
- curwin->w_skipcol = get_dict_number(dict, (char_u *)"skipcol");
-
- check_cursor();
- win_new_height(curwin, curwin->w_height);
- win_new_width(curwin, W_WIDTH(curwin));
- changed_window_setting();
-
- if (curwin->w_topline == 0)
- curwin->w_topline = 1;
- if (curwin->w_topline > curbuf->b_ml.ml_line_count)
- curwin->w_topline = curbuf->b_ml.ml_line_count;
- check_topfill(curwin, TRUE);
- }
-}
-
-/*
- * "winsaveview()" function
- */
-static void f_winsaveview(typval_T *argvars, typval_T *rettv)
-{
- dict_T *dict;
-
- if (rettv_dict_alloc(rettv) == FAIL)
- return;
- dict = rettv->vval.v_dict;
-
- dict_add_nr_str(dict, "lnum", (long)curwin->w_cursor.lnum, NULL);
- dict_add_nr_str(dict, "col", (long)curwin->w_cursor.col, NULL);
- dict_add_nr_str(dict, "coladd", (long)curwin->w_cursor.coladd, NULL);
- update_curswant();
- dict_add_nr_str(dict, "curswant", (long)curwin->w_curswant, NULL);
-
- dict_add_nr_str(dict, "topline", (long)curwin->w_topline, NULL);
- dict_add_nr_str(dict, "topfill", (long)curwin->w_topfill, NULL);
- dict_add_nr_str(dict, "leftcol", (long)curwin->w_leftcol, NULL);
- dict_add_nr_str(dict, "skipcol", (long)curwin->w_skipcol, NULL);
-}
-
-/*
- * "winwidth(nr)" function
- */
-static void f_winwidth(typval_T *argvars, typval_T *rettv)
-{
- win_T *wp;
-
- wp = find_win_by_nr(&argvars[0], NULL);
- if (wp == NULL)
- rettv->vval.v_number = -1;
- else
- rettv->vval.v_number = wp->w_width;
-}
-
-/*
- * "writefile()" function
- */
-static void f_writefile(typval_T *argvars, typval_T *rettv)
-{
- int binary = FALSE;
- char_u *fname;
- FILE *fd;
- listitem_T *li;
- char_u *s;
- int ret = 0;
- int c;
-
- if (check_restricted() || check_secure())
- return;
-
- if (argvars[0].v_type != VAR_LIST) {
- EMSG2(_(e_listarg), "writefile()");
- return;
- }
- if (argvars[0].vval.v_list == NULL)
- return;
-
- if (argvars[2].v_type != VAR_UNKNOWN
- && STRCMP(get_tv_string(&argvars[2]), "b") == 0)
- binary = TRUE;
-
- /* Always open the file in binary mode, library functions have a mind of
- * their own about CR-LF conversion. */
- fname = get_tv_string(&argvars[1]);
- if (*fname == NUL || (fd = mch_fopen((char *)fname, WRITEBIN)) == NULL) {
- EMSG2(_(e_notcreate), *fname == NUL ? (char_u *)_("<empty>") : fname);
- ret = -1;
- } else {
- for (li = argvars[0].vval.v_list->lv_first; li != NULL;
- li = li->li_next) {
- for (s = get_tv_string(&li->li_tv); *s != NUL; ++s) {
- if (*s == '\n')
- c = putc(NUL, fd);
- else
- c = putc(*s, fd);
- if (c == EOF) {
- ret = -1;
- break;
- }
- }
- if (!binary || li->li_next != NULL)
- if (putc('\n', fd) == EOF) {
- ret = -1;
- break;
- }
- if (ret < 0) {
- EMSG(_(e_write));
- break;
- }
- }
- fclose(fd);
- }
-
- rettv->vval.v_number = ret;
-}
-
-/*
- * "xor(expr, expr)" function
- */
-static void f_xor(typval_T *argvars, typval_T *rettv)
-{
- rettv->vval.v_number = get_tv_number_chk(&argvars[0], NULL)
- ^ get_tv_number_chk(&argvars[1], NULL);
-}
-
-
-/*
- * Translate a String variable into a position.
- * Returns NULL when there is an error.
- */
-static pos_T *
-var2fpos (
- typval_T *varp,
- int dollar_lnum, /* TRUE when $ is last line */
- int *fnum /* set to fnum for '0, 'A, etc. */
-)
-{
- char_u *name;
- static pos_T pos;
- pos_T *pp;
-
- /* Argument can be [lnum, col, coladd]. */
- if (varp->v_type == VAR_LIST) {
- list_T *l;
- int len;
- int error = FALSE;
- listitem_T *li;
-
- l = varp->vval.v_list;
- if (l == NULL)
- return NULL;
-
- /* Get the line number */
- pos.lnum = list_find_nr(l, 0L, &error);
- if (error || pos.lnum <= 0 || pos.lnum > curbuf->b_ml.ml_line_count)
- return NULL; /* invalid line number */
-
- /* Get the column number */
- pos.col = list_find_nr(l, 1L, &error);
- if (error)
- return NULL;
- len = (long)STRLEN(ml_get(pos.lnum));
-
- /* We accept "$" for the column number: last column. */
- li = list_find(l, 1L);
- if (li != NULL && li->li_tv.v_type == VAR_STRING
- && li->li_tv.vval.v_string != NULL
- && STRCMP(li->li_tv.vval.v_string, "$") == 0)
- pos.col = len + 1;
-
- /* Accept a position up to the NUL after the line. */
- if (pos.col == 0 || (int)pos.col > len + 1)
- return NULL; /* invalid column number */
- --pos.col;
-
- /* Get the virtual offset. Defaults to zero. */
- pos.coladd = list_find_nr(l, 2L, &error);
- if (error)
- pos.coladd = 0;
-
- return &pos;
- }
-
- name = get_tv_string_chk(varp);
- if (name == NULL)
- return NULL;
- if (name[0] == '.') /* cursor */
- return &curwin->w_cursor;
- if (name[0] == 'v' && name[1] == NUL) { /* Visual start */
- if (VIsual_active)
- return &VIsual;
- return &curwin->w_cursor;
- }
- if (name[0] == '\'') { /* mark */
- pp = getmark_buf_fnum(curbuf, name[1], FALSE, fnum);
- if (pp == NULL || pp == (pos_T *)-1 || pp->lnum <= 0)
- return NULL;
- return pp;
- }
-
- pos.coladd = 0;
-
- if (name[0] == 'w' && dollar_lnum) {
- pos.col = 0;
- if (name[1] == '0') { /* "w0": first visible line */
- update_topline();
- pos.lnum = curwin->w_topline;
- return &pos;
- } else if (name[1] == '$') { /* "w$": last visible line */
- validate_botline();
- pos.lnum = curwin->w_botline - 1;
- return &pos;
- }
- } else if (name[0] == '$') { /* last column or line */
- if (dollar_lnum) {
- pos.lnum = curbuf->b_ml.ml_line_count;
- pos.col = 0;
- } else {
- pos.lnum = curwin->w_cursor.lnum;
- pos.col = (colnr_T)STRLEN(ml_get_curline());
- }
- return &pos;
- }
- return NULL;
-}
-
-/*
- * Convert list in "arg" into a position and optional file number.
- * When "fnump" is NULL there is no file number, only 3 items.
- * Note that the column is passed on as-is, the caller may want to decrement
- * it to use 1 for the first column.
- * Return FAIL when conversion is not possible, doesn't check the position for
- * validity.
- */
-static int list2fpos(typval_T *arg, pos_T *posp, int *fnump)
-{
- list_T *l = arg->vval.v_list;
- long i = 0;
- long n;
-
- /* List must be: [fnum, lnum, col, coladd], where "fnum" is only there
- * when "fnump" isn't NULL and "coladd" is optional. */
- if (arg->v_type != VAR_LIST
- || l == NULL
- || l->lv_len < (fnump == NULL ? 2 : 3)
- || l->lv_len > (fnump == NULL ? 3 : 4))
- return FAIL;
-
- if (fnump != NULL) {
- n = list_find_nr(l, i++, NULL); /* fnum */
- if (n < 0)
- return FAIL;
- if (n == 0)
- n = curbuf->b_fnum; /* current buffer */
- *fnump = n;
- }
-
- n = list_find_nr(l, i++, NULL); /* lnum */
- if (n < 0)
- return FAIL;
- posp->lnum = n;
-
- n = list_find_nr(l, i++, NULL); /* col */
- if (n < 0)
- return FAIL;
- posp->col = n;
-
- n = list_find_nr(l, i, NULL);
- if (n < 0)
- posp->coladd = 0;
- else
- posp->coladd = n;
-
- return OK;
-}
-
-/*
- * Get the length of an environment variable name.
- * Advance "arg" to the first character after the name.
- * Return 0 for error.
- */
-static int get_env_len(char_u **arg)
-{
- char_u *p;
- int len;
-
- for (p = *arg; vim_isIDc(*p); ++p)
- ;
- if (p == *arg) /* no name found */
- return 0;
-
- len = (int)(p - *arg);
- *arg = p;
- return len;
-}
-
-/*
- * Get the length of the name of a function or internal variable.
- * "arg" is advanced to the first non-white character after the name.
- * Return 0 if something is wrong.
- */
-static int get_id_len(char_u **arg)
-{
- char_u *p;
- int len;
-
- /* Find the end of the name. */
- for (p = *arg; eval_isnamec(*p); ++p)
- ;
- if (p == *arg) /* no name found */
- return 0;
-
- len = (int)(p - *arg);
- *arg = skipwhite(p);
-
- return len;
-}
-
-/*
- * Get the length of the name of a variable or function.
- * Only the name is recognized, does not handle ".key" or "[idx]".
- * "arg" is advanced to the first non-white character after the name.
- * Return -1 if curly braces expansion failed.
- * Return 0 if something else is wrong.
- * If the name contains 'magic' {}'s, expand them and return the
- * expanded name in an allocated string via 'alias' - caller must free.
- */
-static int get_name_len(char_u **arg, char_u **alias, int evaluate, int verbose)
-{
- int len;
- char_u *p;
- char_u *expr_start;
- char_u *expr_end;
-
- *alias = NULL; /* default to no alias */
-
- if ((*arg)[0] == K_SPECIAL && (*arg)[1] == KS_EXTRA
- && (*arg)[2] == (int)KE_SNR) {
- /* hard coded <SNR>, already translated */
- *arg += 3;
- return get_id_len(arg) + 3;
- }
- len = eval_fname_script(*arg);
- if (len > 0) {
- /* literal "<SID>", "s:" or "<SNR>" */
- *arg += len;
- }
-
- /*
- * Find the end of the name; check for {} construction.
- */
- p = find_name_end(*arg, &expr_start, &expr_end,
- len > 0 ? 0 : FNE_CHECK_START);
- if (expr_start != NULL) {
- char_u *temp_string;
-
- if (!evaluate) {
- len += (int)(p - *arg);
- *arg = skipwhite(p);
- return len;
- }
-
- /*
- * Include any <SID> etc in the expanded string:
- * Thus the -len here.
- */
- temp_string = make_expanded_name(*arg - len, expr_start, expr_end, p);
- if (temp_string == NULL)
- return -1;
- *alias = temp_string;
- *arg = skipwhite(p);
- return (int)STRLEN(temp_string);
- }
-
- len += get_id_len(arg);
- if (len == 0 && verbose)
- EMSG2(_(e_invexpr2), *arg);
-
- return len;
-}
-
-/*
- * Find the end of a variable or function name, taking care of magic braces.
- * If "expr_start" is not NULL then "expr_start" and "expr_end" are set to the
- * start and end of the first magic braces item.
- * "flags" can have FNE_INCL_BR and FNE_CHECK_START.
- * Return a pointer to just after the name. Equal to "arg" if there is no
- * valid name.
- */
-static char_u *find_name_end(char_u *arg, char_u **expr_start, char_u **expr_end, int flags)
-{
- int mb_nest = 0;
- int br_nest = 0;
- char_u *p;
-
- if (expr_start != NULL) {
- *expr_start = NULL;
- *expr_end = NULL;
- }
-
- /* Quick check for valid starting character. */
- if ((flags & FNE_CHECK_START) && !eval_isnamec1(*arg) && *arg != '{')
- return arg;
-
- for (p = arg; *p != NUL
- && (eval_isnamec(*p)
- || *p == '{'
- || ((flags & FNE_INCL_BR) && (*p == '[' || *p == '.'))
- || mb_nest != 0
- || br_nest != 0); mb_ptr_adv(p)) {
- if (*p == '\'') {
- /* skip over 'string' to avoid counting [ and ] inside it. */
- for (p = p + 1; *p != NUL && *p != '\''; mb_ptr_adv(p))
- ;
- if (*p == NUL)
- break;
- } else if (*p == '"') {
- /* skip over "str\"ing" to avoid counting [ and ] inside it. */
- for (p = p + 1; *p != NUL && *p != '"'; mb_ptr_adv(p))
- if (*p == '\\' && p[1] != NUL)
- ++p;
- if (*p == NUL)
- break;
- }
-
- if (mb_nest == 0) {
- if (*p == '[')
- ++br_nest;
- else if (*p == ']')
- --br_nest;
- }
-
- if (br_nest == 0) {
- if (*p == '{') {
- mb_nest++;
- if (expr_start != NULL && *expr_start == NULL)
- *expr_start = p;
- } else if (*p == '}') {
- mb_nest--;
- if (expr_start != NULL && mb_nest == 0 && *expr_end == NULL)
- *expr_end = p;
- }
- }
- }
-
- return p;
-}
-
-/*
- * Expands out the 'magic' {}'s in a variable/function name.
- * Note that this can call itself recursively, to deal with
- * constructs like foo{bar}{baz}{bam}
- * The four pointer arguments point to "foo{expre}ss{ion}bar"
- * "in_start" ^
- * "expr_start" ^
- * "expr_end" ^
- * "in_end" ^
- *
- * Returns a new allocated string, which the caller must free.
- * Returns NULL for failure.
- */
-static char_u *make_expanded_name(char_u *in_start, char_u *expr_start, char_u *expr_end, char_u *in_end)
-{
- char_u c1;
- char_u *retval = NULL;
- char_u *temp_result;
- char_u *nextcmd = NULL;
-
- if (expr_end == NULL || in_end == NULL)
- return NULL;
- *expr_start = NUL;
- *expr_end = NUL;
- c1 = *in_end;
- *in_end = NUL;
-
- temp_result = eval_to_string(expr_start + 1, &nextcmd, FALSE);
- if (temp_result != NULL && nextcmd == NULL) {
- retval = alloc((unsigned)(STRLEN(temp_result) + (expr_start - in_start)
- + (in_end - expr_end) + 1));
- if (retval != NULL) {
- STRCPY(retval, in_start);
- STRCAT(retval, temp_result);
- STRCAT(retval, expr_end + 1);
- }
- }
- free(temp_result);
-
- *in_end = c1; /* put char back for error messages */
- *expr_start = '{';
- *expr_end = '}';
-
- if (retval != NULL) {
- temp_result = find_name_end(retval, &expr_start, &expr_end, 0);
- if (expr_start != NULL) {
- /* Further expansion! */
- temp_result = make_expanded_name(retval, expr_start,
- expr_end, temp_result);
- free(retval);
- retval = temp_result;
- }
- }
-
- return retval;
-}
-
-/*
- * Return TRUE if character "c" can be used in a variable or function name.
- * Does not include '{' or '}' for magic braces.
- */
-static int eval_isnamec(int c)
-{
- return ASCII_ISALNUM(c) || c == '_' || c == ':' || c == AUTOLOAD_CHAR;
-}
-
-/*
- * Return TRUE if character "c" can be used as the first character in a
- * variable or function name (excluding '{' and '}').
- */
-static int eval_isnamec1(int c)
-{
- return ASCII_ISALPHA(c) || c == '_';
-}
-
-/*
- * Set number v: variable to "val".
- */
-void set_vim_var_nr(int idx, long val)
-{
- vimvars[idx].vv_nr = val;
-}
-
-/*
- * Get number v: variable value.
- */
-long get_vim_var_nr(int idx)
-{
- return vimvars[idx].vv_nr;
-}
-
-/*
- * Get string v: variable value. Uses a static buffer, can only be used once.
- */
-char_u *get_vim_var_str(int idx)
-{
- return get_tv_string(&vimvars[idx].vv_tv);
-}
-
-/*
- * Get List v: variable value. Caller must take care of reference count when
- * needed.
- */
-list_T *get_vim_var_list(int idx)
-{
- return vimvars[idx].vv_list;
-}
-
-/*
- * Set v:char to character "c".
- */
-void set_vim_var_char(int c)
-{
- char_u buf[MB_MAXBYTES + 1];
-
- if (has_mbyte)
- buf[(*mb_char2bytes)(c, buf)] = NUL;
- else {
- buf[0] = c;
- buf[1] = NUL;
- }
- set_vim_var_string(VV_CHAR, buf, -1);
-}
-
-/*
- * Set v:count to "count" and v:count1 to "count1".
- * When "set_prevcount" is TRUE first set v:prevcount from v:count.
- */
-void set_vcount(long count, long count1, int set_prevcount)
-{
- if (set_prevcount)
- vimvars[VV_PREVCOUNT].vv_nr = vimvars[VV_COUNT].vv_nr;
- vimvars[VV_COUNT].vv_nr = count;
- vimvars[VV_COUNT1].vv_nr = count1;
-}
-
-/*
- * Set string v: variable to a copy of "val".
- */
-void
-set_vim_var_string (
- int idx,
- char_u *val,
- int len /* length of "val" to use or -1 (whole string) */
-)
-{
- /* Need to do this (at least) once, since we can't initialize a union.
- * Will always be invoked when "v:progname" is set. */
- vimvars[VV_VERSION].vv_nr = VIM_VERSION_100;
-
- free(vimvars[idx].vv_str);
- if (val == NULL)
- vimvars[idx].vv_str = NULL;
- else if (len == -1)
- vimvars[idx].vv_str = vim_strsave(val);
- else
- vimvars[idx].vv_str = vim_strnsave(val, len);
-}
-
-/*
- * Set List v: variable to "val".
- */
-void set_vim_var_list(int idx, list_T *val)
-{
- list_unref(vimvars[idx].vv_list);
- vimvars[idx].vv_list = val;
- if (val != NULL)
- ++val->lv_refcount;
-}
-
-/*
- * Set v:register if needed.
- */
-void set_reg_var(int c)
-{
- char_u regname;
-
- if (c == 0 || c == ' ')
- regname = '"';
- else
- regname = c;
- /* Avoid free/alloc when the value is already right. */
- if (vimvars[VV_REG].vv_str == NULL || vimvars[VV_REG].vv_str[0] != c)
- set_vim_var_string(VV_REG, &regname, 1);
-}
-
-/*
- * Get or set v:exception. If "oldval" == NULL, return the current value.
- * Otherwise, restore the value to "oldval" and return NULL.
- * Must always be called in pairs to save and restore v:exception! Does not
- * take care of memory allocations.
- */
-char_u *v_exception(char_u *oldval)
-{
- if (oldval == NULL)
- return vimvars[VV_EXCEPTION].vv_str;
-
- vimvars[VV_EXCEPTION].vv_str = oldval;
- return NULL;
-}
-
-/*
- * Get or set v:throwpoint. If "oldval" == NULL, return the current value.
- * Otherwise, restore the value to "oldval" and return NULL.
- * Must always be called in pairs to save and restore v:throwpoint! Does not
- * take care of memory allocations.
- */
-char_u *v_throwpoint(char_u *oldval)
-{
- if (oldval == NULL)
- return vimvars[VV_THROWPOINT].vv_str;
-
- vimvars[VV_THROWPOINT].vv_str = oldval;
- return NULL;
-}
-
-/*
- * Set v:cmdarg.
- * If "eap" != NULL, use "eap" to generate the value and return the old value.
- * If "oldarg" != NULL, restore the value to "oldarg" and return NULL.
- * Must always be called in pairs!
- */
-char_u *set_cmdarg(exarg_T *eap, char_u *oldarg)
-{
- char_u *oldval;
- char_u *newval;
- unsigned len;
-
- oldval = vimvars[VV_CMDARG].vv_str;
- if (eap == NULL) {
- free(oldval);
- vimvars[VV_CMDARG].vv_str = oldarg;
- return NULL;
- }
-
- if (eap->force_bin == FORCE_BIN)
- len = 6;
- else if (eap->force_bin == FORCE_NOBIN)
- len = 8;
- else
- len = 0;
-
- if (eap->read_edit)
- len += 7;
-
- if (eap->force_ff != 0)
- len += (unsigned)STRLEN(eap->cmd + eap->force_ff) + 6;
- if (eap->force_enc != 0)
- len += (unsigned)STRLEN(eap->cmd + eap->force_enc) + 7;
- if (eap->bad_char != 0)
- len += 7 + 4; /* " ++bad=" + "keep" or "drop" */
-
- newval = alloc(len + 1);
- if (newval == NULL)
- return NULL;
-
- if (eap->force_bin == FORCE_BIN)
- sprintf((char *)newval, " ++bin");
- else if (eap->force_bin == FORCE_NOBIN)
- sprintf((char *)newval, " ++nobin");
- else
- *newval = NUL;
-
- if (eap->read_edit)
- STRCAT(newval, " ++edit");
-
- if (eap->force_ff != 0)
- sprintf((char *)newval + STRLEN(newval), " ++ff=%s",
- eap->cmd + eap->force_ff);
- if (eap->force_enc != 0)
- sprintf((char *)newval + STRLEN(newval), " ++enc=%s",
- eap->cmd + eap->force_enc);
- if (eap->bad_char == BAD_KEEP)
- STRCPY(newval + STRLEN(newval), " ++bad=keep");
- else if (eap->bad_char == BAD_DROP)
- STRCPY(newval + STRLEN(newval), " ++bad=drop");
- else if (eap->bad_char != 0)
- sprintf((char *)newval + STRLEN(newval), " ++bad=%c", eap->bad_char);
- vimvars[VV_CMDARG].vv_str = newval;
- return oldval;
-}
-
-/*
- * Get the value of internal variable "name".
- * Return OK or FAIL.
- */
-static int
-get_var_tv (
- char_u *name,
- int len, /* length of "name" */
- typval_T *rettv, /* NULL when only checking existence */
- int verbose, /* may give error message */
- int no_autoload /* do not use script autoloading */
-)
-{
- int ret = OK;
- typval_T *tv = NULL;
- typval_T atv;
- dictitem_T *v;
- int cc;
-
- /* truncate the name, so that we can use strcmp() */
- cc = name[len];
- name[len] = NUL;
-
- /*
- * Check for "b:changedtick".
- */
- if (STRCMP(name, "b:changedtick") == 0) {
- atv.v_type = VAR_NUMBER;
- atv.vval.v_number = curbuf->b_changedtick;
- tv = &atv;
- }
- /*
- * Check for user-defined variables.
- */
- else {
- v = find_var(name, NULL, no_autoload);
- if (v != NULL)
- tv = &v->di_tv;
- }
-
- if (tv == NULL) {
- if (rettv != NULL && verbose)
- EMSG2(_(e_undefvar), name);
- ret = FAIL;
- } else if (rettv != NULL)
- copy_tv(tv, rettv);
-
- name[len] = cc;
-
- return ret;
-}
-
-/*
- * Handle expr[expr], expr[expr:expr] subscript and .name lookup.
- * Also handle function call with Funcref variable: func(expr)
- * Can all be combined: dict.func(expr)[idx]['func'](expr)
- */
-static int
-handle_subscript (
- char_u **arg,
- typval_T *rettv,
- int evaluate, /* do more than finding the end */
- int verbose /* give error messages */
-)
-{
- int ret = OK;
- dict_T *selfdict = NULL;
- char_u *s;
- int len;
- typval_T functv;
-
- while (ret == OK
- && (**arg == '['
- || (**arg == '.' && rettv->v_type == VAR_DICT)
- || (**arg == '(' && (!evaluate || rettv->v_type == VAR_FUNC)))
- && !vim_iswhite(*(*arg - 1))) {
- if (**arg == '(') {
- /* need to copy the funcref so that we can clear rettv */
- if (evaluate) {
- functv = *rettv;
- rettv->v_type = VAR_UNKNOWN;
-
- /* Invoke the function. Recursive! */
- s = functv.vval.v_string;
- } else
- s = (char_u *)"";
- ret = get_func_tv(s, (int)STRLEN(s), rettv, arg,
- curwin->w_cursor.lnum, curwin->w_cursor.lnum,
- &len, evaluate, selfdict);
-
- /* Clear the funcref afterwards, so that deleting it while
- * evaluating the arguments is possible (see test55). */
- if (evaluate)
- clear_tv(&functv);
-
- /* Stop the expression evaluation when immediately aborting on
- * error, or when an interrupt occurred or an exception was thrown
- * but not caught. */
- if (aborting()) {
- if (ret == OK)
- clear_tv(rettv);
- ret = FAIL;
- }
- dict_unref(selfdict);
- selfdict = NULL;
- } else { /* **arg == '[' || **arg == '.' */
- dict_unref(selfdict);
- if (rettv->v_type == VAR_DICT) {
- selfdict = rettv->vval.v_dict;
- if (selfdict != NULL)
- ++selfdict->dv_refcount;
- } else
- selfdict = NULL;
- if (eval_index(arg, rettv, evaluate, verbose) == FAIL) {
- clear_tv(rettv);
- ret = FAIL;
- }
- }
- }
- dict_unref(selfdict);
- return ret;
-}
-
-/*
- * Free the memory for a variable type-value.
- */
-void free_tv(typval_T *varp)
-{
- if (varp != NULL) {
- switch (varp->v_type) {
- case VAR_FUNC:
- func_unref(varp->vval.v_string);
- /*FALLTHROUGH*/
- case VAR_STRING:
- free(varp->vval.v_string);
- break;
- case VAR_LIST:
- list_unref(varp->vval.v_list);
- break;
- case VAR_DICT:
- dict_unref(varp->vval.v_dict);
- break;
- case VAR_NUMBER:
- case VAR_FLOAT:
- case VAR_UNKNOWN:
- break;
- default:
- EMSG2(_(e_intern2), "free_tv()");
- break;
- }
- free(varp);
- }
-}
-
-/*
- * Free the memory for a variable value and set the value to NULL or 0.
- */
-void clear_tv(typval_T *varp)
-{
- if (varp != NULL) {
- switch (varp->v_type) {
- case VAR_FUNC:
- func_unref(varp->vval.v_string);
- /*FALLTHROUGH*/
- case VAR_STRING:
- free(varp->vval.v_string);
- varp->vval.v_string = NULL;
- break;
- case VAR_LIST:
- list_unref(varp->vval.v_list);
- varp->vval.v_list = NULL;
- break;
- case VAR_DICT:
- dict_unref(varp->vval.v_dict);
- varp->vval.v_dict = NULL;
- break;
- case VAR_NUMBER:
- varp->vval.v_number = 0;
- break;
- case VAR_FLOAT:
- varp->vval.v_float = 0.0;
- break;
- case VAR_UNKNOWN:
- break;
- default:
- EMSG2(_(e_intern2), "clear_tv()");
- }
- varp->v_lock = 0;
- }
-}
-
-/*
- * Set the value of a variable to NULL without freeing items.
- */
-static void init_tv(typval_T *varp)
-{
- if (varp != NULL)
- memset(varp, 0, sizeof(typval_T));
-}
-
-/*
- * Get the number value of a variable.
- * If it is a String variable, uses vim_str2nr().
- * For incompatible types, return 0.
- * get_tv_number_chk() is similar to get_tv_number(), but informs the
- * caller of incompatible types: it sets *denote to TRUE if "denote"
- * is not NULL or returns -1 otherwise.
- */
-static long get_tv_number(typval_T *varp)
-{
- int error = FALSE;
-
- return get_tv_number_chk(varp, &error); /* return 0L on error */
-}
-
-long get_tv_number_chk(typval_T *varp, int *denote)
-{
- long n = 0L;
-
- switch (varp->v_type) {
- case VAR_NUMBER:
- return (long)(varp->vval.v_number);
- case VAR_FLOAT:
- EMSG(_("E805: Using a Float as a Number"));
- break;
- case VAR_FUNC:
- EMSG(_("E703: Using a Funcref as a Number"));
- break;
- case VAR_STRING:
- if (varp->vval.v_string != NULL)
- vim_str2nr(varp->vval.v_string, NULL, NULL,
- TRUE, TRUE, &n, NULL);
- return n;
- case VAR_LIST:
- EMSG(_("E745: Using a List as a Number"));
- break;
- case VAR_DICT:
- EMSG(_("E728: Using a Dictionary as a Number"));
- break;
- default:
- EMSG2(_(e_intern2), "get_tv_number()");
- break;
- }
- if (denote == NULL) /* useful for values that must be unsigned */
- n = -1;
- else
- *denote = TRUE;
- return n;
-}
-
-/*
- * Get the lnum from the first argument.
- * Also accepts ".", "$", etc., but that only works for the current buffer.
- * Returns -1 on error.
- */
-static linenr_T get_tv_lnum(typval_T *argvars)
-{
- typval_T rettv;
- linenr_T lnum;
-
- lnum = get_tv_number_chk(&argvars[0], NULL);
- if (lnum == 0) { /* no valid number, try using line() */
- rettv.v_type = VAR_NUMBER;
- f_line(argvars, &rettv);
- lnum = rettv.vval.v_number;
- clear_tv(&rettv);
- }
- return lnum;
-}
-
-/*
- * Get the lnum from the first argument.
- * Also accepts "$", then "buf" is used.
- * Returns 0 on error.
- */
-static linenr_T get_tv_lnum_buf(typval_T *argvars, buf_T *buf)
-{
- if (argvars[0].v_type == VAR_STRING
- && argvars[0].vval.v_string != NULL
- && argvars[0].vval.v_string[0] == '$'
- && buf != NULL)
- return buf->b_ml.ml_line_count;
- return get_tv_number_chk(&argvars[0], NULL);
-}
-
-/*
- * Get the string value of a variable.
- * If it is a Number variable, the number is converted into a string.
- * get_tv_string() uses a single, static buffer. YOU CAN ONLY USE IT ONCE!
- * get_tv_string_buf() uses a given buffer.
- * If the String variable has never been set, return an empty string.
- * Never returns NULL;
- * get_tv_string_chk() and get_tv_string_buf_chk() are similar, but return
- * NULL on error.
- */
-static char_u *get_tv_string(typval_T *varp)
-{
- static char_u mybuf[NUMBUFLEN];
-
- return get_tv_string_buf(varp, mybuf);
-}
-
-static char_u *get_tv_string_buf(typval_T *varp, char_u *buf)
-{
- char_u *res = get_tv_string_buf_chk(varp, buf);
-
- return res != NULL ? res : (char_u *)"";
-}
-
-char_u *get_tv_string_chk(typval_T *varp)
-{
- static char_u mybuf[NUMBUFLEN];
-
- return get_tv_string_buf_chk(varp, mybuf);
-}
-
-static char_u *get_tv_string_buf_chk(typval_T *varp, char_u *buf)
-{
- switch (varp->v_type) {
- case VAR_NUMBER:
- sprintf((char *)buf, "%" PRId64, (int64_t)varp->vval.v_number);
- return buf;
- case VAR_FUNC:
- EMSG(_("E729: using Funcref as a String"));
- break;
- case VAR_LIST:
- EMSG(_("E730: using List as a String"));
- break;
- case VAR_DICT:
- EMSG(_("E731: using Dictionary as a String"));
- break;
- case VAR_FLOAT:
- EMSG(_(e_float_as_string));
- break;
- case VAR_STRING:
- if (varp->vval.v_string != NULL)
- return varp->vval.v_string;
- return (char_u *)"";
- default:
- EMSG2(_(e_intern2), "get_tv_string_buf()");
- break;
- }
- return NULL;
-}
-
-/*
- * Find variable "name" in the list of variables.
- * Return a pointer to it if found, NULL if not found.
- * Careful: "a:0" variables don't have a name.
- * When "htp" is not NULL we are writing to the variable, set "htp" to the
- * hashtab_T used.
- */
-static dictitem_T *find_var(char_u *name, hashtab_T **htp, int no_autoload)
-{
- char_u *varname;
- hashtab_T *ht;
-
- ht = find_var_ht(name, &varname);
- if (htp != NULL)
- *htp = ht;
- if (ht == NULL)
- return NULL;
- return find_var_in_ht(ht, *name, varname, no_autoload || htp != NULL);
-}
-
-/*
- * Find variable "varname" in hashtab "ht" with name "htname".
- * Returns NULL if not found.
- */
-static dictitem_T *find_var_in_ht(hashtab_T *ht, int htname, char_u *varname, int no_autoload)
-{
- hashitem_T *hi;
-
- if (*varname == NUL) {
- /* Must be something like "s:", otherwise "ht" would be NULL. */
- switch (htname) {
- case 's': return &SCRIPT_SV(current_SID)->sv_var;
- case 'g': return &globvars_var;
- case 'v': return &vimvars_var;
- case 'b': return &curbuf->b_bufvar;
- case 'w': return &curwin->w_winvar;
- case 't': return &curtab->tp_winvar;
- case 'l': return current_funccal == NULL
- ? NULL : &current_funccal->l_vars_var;
- case 'a': return current_funccal == NULL
- ? NULL : &current_funccal->l_avars_var;
- }
- return NULL;
- }
-
- hi = hash_find(ht, varname);
- if (HASHITEM_EMPTY(hi)) {
- /* For global variables we may try auto-loading the script. If it
- * worked find the variable again. Don't auto-load a script if it was
- * loaded already, otherwise it would be loaded every time when
- * checking if a function name is a Funcref variable. */
- if (ht == &globvarht && !no_autoload) {
- /* Note: script_autoload() may make "hi" invalid. It must either
- * be obtained again or not used. */
- if (!script_autoload(varname, FALSE) || aborting())
- return NULL;
- hi = hash_find(ht, varname);
- }
- if (HASHITEM_EMPTY(hi))
- return NULL;
- }
- return HI2DI(hi);
-}
-
-/*
- * Find the hashtab used for a variable name.
- * Set "varname" to the start of name without ':'.
- */
-static hashtab_T *find_var_ht(char_u *name, char_u **varname)
-{
- hashitem_T *hi;
-
- if (name[1] != ':') {
- /* The name must not start with a colon or #. */
- if (name[0] == ':' || name[0] == AUTOLOAD_CHAR)
- return NULL;
- *varname = name;
-
- /* "version" is "v:version" in all scopes */
- hi = hash_find(&compat_hashtab, name);
- if (!HASHITEM_EMPTY(hi))
- return &compat_hashtab;
-
- if (current_funccal == NULL)
- return &globvarht; /* global variable */
- return &current_funccal->l_vars.dv_hashtab; /* l: variable */
- }
- *varname = name + 2;
- if (*name == 'g') /* global variable */
- return &globvarht;
- /* There must be no ':' or '#' in the rest of the name, unless g: is used
- */
- if (vim_strchr(name + 2, ':') != NULL
- || vim_strchr(name + 2, AUTOLOAD_CHAR) != NULL)
- return NULL;
- if (*name == 'b') /* buffer variable */
- return &curbuf->b_vars->dv_hashtab;
- if (*name == 'w') /* window variable */
- return &curwin->w_vars->dv_hashtab;
- if (*name == 't') /* tab page variable */
- return &curtab->tp_vars->dv_hashtab;
- if (*name == 'v') /* v: variable */
- return &vimvarht;
- if (*name == 'a' && current_funccal != NULL) /* function argument */
- return &current_funccal->l_avars.dv_hashtab;
- if (*name == 'l' && current_funccal != NULL) /* local function variable */
- return &current_funccal->l_vars.dv_hashtab;
- if (*name == 's' /* script variable */
- && current_SID > 0 && current_SID <= ga_scripts.ga_len)
- return &SCRIPT_VARS(current_SID);
- return NULL;
-}
-
-/*
- * Get the string value of a (global/local) variable.
- * Note: see get_tv_string() for how long the pointer remains valid.
- * Returns NULL when it doesn't exist.
- */
-char_u *get_var_value(char_u *name)
-{
- dictitem_T *v;
-
- v = find_var(name, NULL, FALSE);
- if (v == NULL)
- return NULL;
- return get_tv_string(&v->di_tv);
-}
-
-/*
- * Allocate a new hashtab for a sourced script. It will be used while
- * sourcing this script and when executing functions defined in the script.
- */
-void new_script_vars(scid_T id)
-{
- int i;
- hashtab_T *ht;
- scriptvar_T *sv;
-
- ga_grow(&ga_scripts, (int)(id - ga_scripts.ga_len));
- {
- /* Re-allocating ga_data means that an ht_array pointing to
- * ht_smallarray becomes invalid. We can recognize this: ht_mask is
- * at its init value. Also reset "v_dict", it's always the same. */
- for (i = 1; i <= ga_scripts.ga_len; ++i) {
- ht = &SCRIPT_VARS(i);
- if (ht->ht_mask == HT_INIT_SIZE - 1)
- ht->ht_array = ht->ht_smallarray;
- sv = SCRIPT_SV(i);
- sv->sv_var.di_tv.vval.v_dict = &sv->sv_dict;
- }
-
- while (ga_scripts.ga_len < id) {
- sv = SCRIPT_SV(ga_scripts.ga_len + 1) = xcalloc(1, sizeof(scriptvar_T));
- init_var_dict(&sv->sv_dict, &sv->sv_var, VAR_SCOPE);
- ++ga_scripts.ga_len;
- }
- }
-}
-
-/*
- * Initialize dictionary "dict" as a scope and set variable "dict_var" to
- * point to it.
- */
-void init_var_dict(dict_T *dict, dictitem_T *dict_var, int scope)
-{
- hash_init(&dict->dv_hashtab);
- dict->dv_lock = 0;
- dict->dv_scope = scope;
- dict->dv_refcount = DO_NOT_FREE_CNT;
- dict->dv_copyID = 0;
- dict_var->di_tv.vval.v_dict = dict;
- dict_var->di_tv.v_type = VAR_DICT;
- dict_var->di_tv.v_lock = VAR_FIXED;
- dict_var->di_flags = DI_FLAGS_RO | DI_FLAGS_FIX;
- dict_var->di_key[0] = NUL;
-}
-
-/*
- * Unreference a dictionary initialized by init_var_dict().
- */
-void unref_var_dict(dict_T *dict)
-{
- /* Now the dict needs to be freed if no one else is using it, go back to
- * normal reference counting. */
- dict->dv_refcount -= DO_NOT_FREE_CNT - 1;
- dict_unref(dict);
-}
-
-/*
- * Clean up a list of internal variables.
- * Frees all allocated variables and the value they contain.
- * Clears hashtab "ht", does not free it.
- */
-void vars_clear(hashtab_T *ht)
-{
- vars_clear_ext(ht, TRUE);
-}
-
-/*
- * Like vars_clear(), but only free the value if "free_val" is TRUE.
- */
-static void vars_clear_ext(hashtab_T *ht, int free_val)
-{
- int todo;
- hashitem_T *hi;
- dictitem_T *v;
-
- hash_lock(ht);
- todo = (int)ht->ht_used;
- for (hi = ht->ht_array; todo > 0; ++hi) {
- if (!HASHITEM_EMPTY(hi)) {
- --todo;
-
- /* Free the variable. Don't remove it from the hashtab,
- * ht_array might change then. hash_clear() takes care of it
- * later. */
- v = HI2DI(hi);
- if (free_val)
- clear_tv(&v->di_tv);
- if ((v->di_flags & DI_FLAGS_FIX) == 0)
- free(v);
- }
- }
- hash_clear(ht);
- ht->ht_used = 0;
-}
-
-/*
- * Delete a variable from hashtab "ht" at item "hi".
- * Clear the variable value and free the dictitem.
- */
-static void delete_var(hashtab_T *ht, hashitem_T *hi)
-{
- dictitem_T *di = HI2DI(hi);
-
- hash_remove(ht, hi);
- clear_tv(&di->di_tv);
- free(di);
-}
-
-/*
- * List the value of one internal variable.
- */
-static void list_one_var(dictitem_T *v, char_u *prefix, int *first)
-{
- char_u *tofree;
- char_u *s;
- char_u numbuf[NUMBUFLEN];
-
- current_copyID += COPYID_INC;
- s = echo_string(&v->di_tv, &tofree, numbuf, current_copyID);
- list_one_var_a(prefix, v->di_key, v->di_tv.v_type,
- s == NULL ? (char_u *)"" : s, first);
- free(tofree);
-}
-
-static void
-list_one_var_a (
- char_u *prefix,
- char_u *name,
- int type,
- char_u *string,
- int *first /* when TRUE clear rest of screen and set to FALSE */
-)
-{
- /* don't use msg() or msg_attr() to avoid overwriting "v:statusmsg" */
- msg_start();
- msg_puts(prefix);
- if (name != NULL) /* "a:" vars don't have a name stored */
- msg_puts(name);
- msg_putchar(' ');
- msg_advance(22);
- if (type == VAR_NUMBER)
- msg_putchar('#');
- else if (type == VAR_FUNC)
- msg_putchar('*');
- else if (type == VAR_LIST) {
- msg_putchar('[');
- if (*string == '[')
- ++string;
- } else if (type == VAR_DICT) {
- msg_putchar('{');
- if (*string == '{')
- ++string;
- } else
- msg_putchar(' ');
-
- msg_outtrans(string);
-
- if (type == VAR_FUNC)
- msg_puts((char_u *)"()");
- if (*first) {
- msg_clr_eos();
- *first = FALSE;
- }
-}
-
-/*
- * Set variable "name" to value in "tv".
- * If the variable already exists, the value is updated.
- * Otherwise the variable is created.
- */
-static void
-set_var (
- char_u *name,
- typval_T *tv,
- int copy /* make copy of value in "tv" */
-)
-{
- dictitem_T *v;
- char_u *varname;
- hashtab_T *ht;
-
- ht = find_var_ht(name, &varname);
- if (ht == NULL || *varname == NUL) {
- EMSG2(_(e_illvar), name);
- return;
- }
- v = find_var_in_ht(ht, 0, varname, TRUE);
-
- if (tv->v_type == VAR_FUNC && var_check_func_name(name, v == NULL))
- return;
-
- if (v != NULL) {
- /* existing variable, need to clear the value */
- if (var_check_ro(v->di_flags, name)
- || tv_check_lock(v->di_tv.v_lock, name))
- return;
- if (v->di_tv.v_type != tv->v_type
- && !((v->di_tv.v_type == VAR_STRING
- || v->di_tv.v_type == VAR_NUMBER)
- && (tv->v_type == VAR_STRING
- || tv->v_type == VAR_NUMBER))
- && !((v->di_tv.v_type == VAR_NUMBER
- || v->di_tv.v_type == VAR_FLOAT)
- && (tv->v_type == VAR_NUMBER
- || tv->v_type == VAR_FLOAT))
- ) {
- EMSG2(_("E706: Variable type mismatch for: %s"), name);
- return;
- }
-
- /*
- * Handle setting internal v: variables separately: we don't change
- * the type.
- */
- if (ht == &vimvarht) {
- if (v->di_tv.v_type == VAR_STRING) {
- free(v->di_tv.vval.v_string);
- if (copy || tv->v_type != VAR_STRING)
- v->di_tv.vval.v_string = vim_strsave(get_tv_string(tv));
- else {
- /* Take over the string to avoid an extra alloc/free. */
- v->di_tv.vval.v_string = tv->vval.v_string;
- tv->vval.v_string = NULL;
- }
- } else if (v->di_tv.v_type != VAR_NUMBER)
- EMSG2(_(e_intern2), "set_var()");
- else {
- v->di_tv.vval.v_number = get_tv_number(tv);
- if (STRCMP(varname, "searchforward") == 0)
- set_search_direction(v->di_tv.vval.v_number ? '/' : '?');
- else if (STRCMP(varname, "hlsearch") == 0) {
- no_hlsearch = !v->di_tv.vval.v_number;
- redraw_all_later(SOME_VALID);
- }
- }
- return;
- }
-
- clear_tv(&v->di_tv);
- } else { /* add a new variable */
- /* Can't add "v:" variable. */
- if (ht == &vimvarht) {
- EMSG2(_(e_illvar), name);
- return;
- }
-
- /* Make sure the variable name is valid. */
- if (!valid_varname(varname))
- return;
-
- v = (dictitem_T *)alloc((unsigned)(sizeof(dictitem_T)
- + STRLEN(varname)));
- if (v == NULL)
- return;
- STRCPY(v->di_key, varname);
- if (hash_add(ht, DI2HIKEY(v)) == FAIL) {
- free(v);
- return;
- }
- v->di_flags = 0;
- }
-
- if (copy || tv->v_type == VAR_NUMBER || tv->v_type == VAR_FLOAT)
- copy_tv(tv, &v->di_tv);
- else {
- v->di_tv = *tv;
- v->di_tv.v_lock = 0;
- init_tv(tv);
- }
-}
-
-/*
- * Return TRUE if di_flags "flags" indicates variable "name" is read-only.
- * Also give an error message.
- */
-static int var_check_ro(int flags, char_u *name)
-{
- if (flags & DI_FLAGS_RO) {
- EMSG2(_(e_readonlyvar), name);
- return TRUE;
- }
- if ((flags & DI_FLAGS_RO_SBX) && sandbox) {
- EMSG2(_(e_readonlysbx), name);
- return TRUE;
- }
- return FALSE;
-}
-
-/*
- * Return TRUE if di_flags "flags" indicates variable "name" is fixed.
- * Also give an error message.
- */
-static int var_check_fixed(int flags, char_u *name)
-{
- if (flags & DI_FLAGS_FIX) {
- EMSG2(_("E795: Cannot delete variable %s"), name);
- return TRUE;
- }
- return FALSE;
-}
-
-/*
- * Check if a funcref is assigned to a valid variable name.
- * Return TRUE and give an error if not.
- */
-static int
-var_check_func_name (
- char_u *name, /* points to start of variable name */
- int new_var /* TRUE when creating the variable */
-)
-{
- if (!(vim_strchr((char_u *)"wbs", name[0]) != NULL && name[1] == ':')
- && !ASCII_ISUPPER((name[0] != NUL && name[1] == ':')
- ? name[2] : name[0])) {
- EMSG2(_("E704: Funcref variable name must start with a capital: %s"),
- name);
- return TRUE;
- }
- /* Don't allow hiding a function. When "v" is not NULL we might be
- * assigning another function to the same var, the type is checked
- * below. */
- if (new_var && function_exists(name)) {
- EMSG2(_("E705: Variable name conflicts with existing function: %s"),
- name);
- return TRUE;
- }
- return FALSE;
-}
-
-/*
- * Check if a variable name is valid.
- * Return FALSE and give an error if not.
- */
-static int valid_varname(char_u *varname)
-{
- char_u *p;
-
- for (p = varname; *p != NUL; ++p)
- if (!eval_isnamec1(*p) && (p == varname || !VIM_ISDIGIT(*p))
- && *p != AUTOLOAD_CHAR) {
- EMSG2(_(e_illvar), varname);
- return FALSE;
- }
- return TRUE;
-}
-
-/*
- * Return TRUE if typeval "tv" is set to be locked (immutable).
- * Also give an error message, using "name".
- */
-static int tv_check_lock(int lock, char_u *name)
-{
- if (lock & VAR_LOCKED) {
- EMSG2(_("E741: Value is locked: %s"),
- name == NULL ? (char_u *)_("Unknown") : name);
- return TRUE;
- }
- if (lock & VAR_FIXED) {
- EMSG2(_("E742: Cannot change value of %s"),
- name == NULL ? (char_u *)_("Unknown") : name);
- return TRUE;
- }
- return FALSE;
-}
-
-/*
- * Copy the values from typval_T "from" to typval_T "to".
- * When needed allocates string or increases reference count.
- * Does not make a copy of a list or dict but copies the reference!
- * It is OK for "from" and "to" to point to the same item. This is used to
- * make a copy later.
- */
-void copy_tv(typval_T *from, typval_T *to)
-{
- to->v_type = from->v_type;
- to->v_lock = 0;
- switch (from->v_type) {
- case VAR_NUMBER:
- to->vval.v_number = from->vval.v_number;
- break;
- case VAR_FLOAT:
- to->vval.v_float = from->vval.v_float;
- break;
- case VAR_STRING:
- case VAR_FUNC:
- if (from->vval.v_string == NULL)
- to->vval.v_string = NULL;
- else {
- to->vval.v_string = vim_strsave(from->vval.v_string);
- if (from->v_type == VAR_FUNC)
- func_ref(to->vval.v_string);
- }
- break;
- case VAR_LIST:
- if (from->vval.v_list == NULL)
- to->vval.v_list = NULL;
- else {
- to->vval.v_list = from->vval.v_list;
- ++to->vval.v_list->lv_refcount;
- }
- break;
- case VAR_DICT:
- if (from->vval.v_dict == NULL)
- to->vval.v_dict = NULL;
- else {
- to->vval.v_dict = from->vval.v_dict;
- ++to->vval.v_dict->dv_refcount;
- }
- break;
- default:
- EMSG2(_(e_intern2), "copy_tv()");
- break;
- }
-}
-
-/*
- * Make a copy of an item.
- * Lists and Dictionaries are also copied. A deep copy if "deep" is set.
- * For deepcopy() "copyID" is zero for a full copy or the ID for when a
- * reference to an already copied list/dict can be used.
- * Returns FAIL or OK.
- */
-static int item_copy(typval_T *from, typval_T *to, int deep, int copyID)
-{
- static int recurse = 0;
- int ret = OK;
-
- if (recurse >= DICT_MAXNEST) {
- EMSG(_("E698: variable nested too deep for making a copy"));
- return FAIL;
- }
- ++recurse;
-
- switch (from->v_type) {
- case VAR_NUMBER:
- case VAR_FLOAT:
- case VAR_STRING:
- case VAR_FUNC:
- copy_tv(from, to);
- break;
- case VAR_LIST:
- to->v_type = VAR_LIST;
- to->v_lock = 0;
- if (from->vval.v_list == NULL)
- to->vval.v_list = NULL;
- else if (copyID != 0 && from->vval.v_list->lv_copyID == copyID) {
- /* use the copy made earlier */
- to->vval.v_list = from->vval.v_list->lv_copylist;
- ++to->vval.v_list->lv_refcount;
- } else
- to->vval.v_list = list_copy(from->vval.v_list, deep, copyID);
- if (to->vval.v_list == NULL)
- ret = FAIL;
- break;
- case VAR_DICT:
- to->v_type = VAR_DICT;
- to->v_lock = 0;
- if (from->vval.v_dict == NULL)
- to->vval.v_dict = NULL;
- else if (copyID != 0 && from->vval.v_dict->dv_copyID == copyID) {
- /* use the copy made earlier */
- to->vval.v_dict = from->vval.v_dict->dv_copydict;
- ++to->vval.v_dict->dv_refcount;
- } else
- to->vval.v_dict = dict_copy(from->vval.v_dict, deep, copyID);
- if (to->vval.v_dict == NULL)
- ret = FAIL;
- break;
- default:
- EMSG2(_(e_intern2), "item_copy()");
- ret = FAIL;
- }
- --recurse;
- return ret;
-}
-
-/*
- * ":echo expr1 ..." print each argument separated with a space, add a
- * newline at the end.
- * ":echon expr1 ..." print each argument plain.
- */
-void ex_echo(exarg_T *eap)
-{
- char_u *arg = eap->arg;
- typval_T rettv;
- char_u *tofree;
- char_u *p;
- int needclr = TRUE;
- int atstart = TRUE;
- char_u numbuf[NUMBUFLEN];
-
- if (eap->skip)
- ++emsg_skip;
- while (*arg != NUL && *arg != '|' && *arg != '\n' && !got_int) {
- /* If eval1() causes an error message the text from the command may
- * still need to be cleared. E.g., "echo 22,44". */
- need_clr_eos = needclr;
-
- p = arg;
- if (eval1(&arg, &rettv, !eap->skip) == FAIL) {
- /*
- * Report the invalid expression unless the expression evaluation
- * has been cancelled due to an aborting error, an interrupt, or an
- * exception.
- */
- if (!aborting())
- EMSG2(_(e_invexpr2), p);
- need_clr_eos = FALSE;
- break;
- }
- need_clr_eos = FALSE;
-
- if (!eap->skip) {
- if (atstart) {
- atstart = FALSE;
- /* Call msg_start() after eval1(), evaluating the expression
- * may cause a message to appear. */
- if (eap->cmdidx == CMD_echo) {
- /* Mark the saved text as finishing the line, so that what
- * follows is displayed on a new line when scrolling back
- * at the more prompt. */
- msg_sb_eol();
- msg_start();
- }
- } else if (eap->cmdidx == CMD_echo)
- msg_puts_attr((char_u *)" ", echo_attr);
- current_copyID += COPYID_INC;
- p = echo_string(&rettv, &tofree, numbuf, current_copyID);
- if (p != NULL)
- for (; *p != NUL && !got_int; ++p) {
- if (*p == '\n' || *p == '\r' || *p == TAB) {
- if (*p != TAB && needclr) {
- /* remove any text still there from the command */
- msg_clr_eos();
- needclr = FALSE;
- }
- msg_putchar_attr(*p, echo_attr);
- } else {
- if (has_mbyte) {
- int i = (*mb_ptr2len)(p);
-
- (void)msg_outtrans_len_attr(p, i, echo_attr);
- p += i - 1;
- } else
- (void)msg_outtrans_len_attr(p, 1, echo_attr);
- }
- }
- free(tofree);
- }
- clear_tv(&rettv);
- arg = skipwhite(arg);
- }
- eap->nextcmd = check_nextcmd(arg);
-
- if (eap->skip)
- --emsg_skip;
- else {
- /* remove text that may still be there from the command */
- if (needclr)
- msg_clr_eos();
- if (eap->cmdidx == CMD_echo)
- msg_end();
- }
-}
-
-/*
- * ":echohl {name}".
- */
-void ex_echohl(exarg_T *eap)
-{
- int id;
-
- id = syn_name2id(eap->arg);
- if (id == 0)
- echo_attr = 0;
- else
- echo_attr = syn_id2attr(id);
-}
-
-/*
- * ":execute expr1 ..." execute the result of an expression.
- * ":echomsg expr1 ..." Print a message
- * ":echoerr expr1 ..." Print an error
- * Each gets spaces around each argument and a newline at the end for
- * echo commands
- */
-void ex_execute(exarg_T *eap)
-{
- char_u *arg = eap->arg;
- typval_T rettv;
- int ret = OK;
- char_u *p;
- garray_T ga;
- int len;
- int save_did_emsg;
-
- ga_init(&ga, 1, 80);
-
- if (eap->skip)
- ++emsg_skip;
- while (*arg != NUL && *arg != '|' && *arg != '\n') {
- p = arg;
- if (eval1(&arg, &rettv, !eap->skip) == FAIL) {
- /*
- * Report the invalid expression unless the expression evaluation
- * has been cancelled due to an aborting error, an interrupt, or an
- * exception.
- */
- if (!aborting())
- EMSG2(_(e_invexpr2), p);
- ret = FAIL;
- break;
- }
-
- if (!eap->skip) {
- p = get_tv_string(&rettv);
- len = (int)STRLEN(p);
- ga_grow(&ga, len + 2);
- if (ga.ga_len)
- ((char_u *)(ga.ga_data))[ga.ga_len++] = ' ';
- STRCPY((char_u *)(ga.ga_data) + ga.ga_len, p);
- ga.ga_len += len;
- }
-
- clear_tv(&rettv);
- arg = skipwhite(arg);
- }
-
- if (ret != FAIL && ga.ga_data != NULL) {
- if (eap->cmdidx == CMD_echomsg) {
- MSG_ATTR(ga.ga_data, echo_attr);
- out_flush();
- } else if (eap->cmdidx == CMD_echoerr) {
- /* We don't want to abort following commands, restore did_emsg. */
- save_did_emsg = did_emsg;
- EMSG((char_u *)ga.ga_data);
- if (!force_abort)
- did_emsg = save_did_emsg;
- } else if (eap->cmdidx == CMD_execute)
- do_cmdline((char_u *)ga.ga_data,
- eap->getline, eap->cookie, DOCMD_NOWAIT|DOCMD_VERBOSE);
- }
-
- ga_clear(&ga);
-
- if (eap->skip)
- --emsg_skip;
-
- eap->nextcmd = check_nextcmd(arg);
-}
-
-/*
- * Skip over the name of an option: "&option", "&g:option" or "&l:option".
- * "arg" points to the "&" or '+' when called, to "option" when returning.
- * Returns NULL when no option name found. Otherwise pointer to the char
- * after the option name.
- */
-static char_u *find_option_end(char_u **arg, int *opt_flags)
-{
- char_u *p = *arg;
-
- ++p;
- if (*p == 'g' && p[1] == ':') {
- *opt_flags = OPT_GLOBAL;
- p += 2;
- } else if (*p == 'l' && p[1] == ':') {
- *opt_flags = OPT_LOCAL;
- p += 2;
- } else
- *opt_flags = 0;
-
- if (!ASCII_ISALPHA(*p))
- return NULL;
- *arg = p;
-
- if (p[0] == 't' && p[1] == '_' && p[2] != NUL && p[3] != NUL)
- p += 4; /* termcap option */
- else
- while (ASCII_ISALPHA(*p))
- ++p;
- return p;
-}
-
-/*
- * ":function"
- */
-void ex_function(exarg_T *eap)
-{
- char_u *theline;
- int i;
- int j;
- int c;
- int saved_did_emsg;
- int saved_wait_return = need_wait_return;
- char_u *name = NULL;
- char_u *p;
- char_u *arg;
- char_u *line_arg = NULL;
- garray_T newargs;
- garray_T newlines;
- int varargs = FALSE;
- int mustend = FALSE;
- int flags = 0;
- ufunc_T *fp;
- int indent;
- int nesting;
- char_u *skip_until = NULL;
- dictitem_T *v;
- funcdict_T fudi;
- static int func_nr = 0; /* number for nameless function */
- int paren;
- hashtab_T *ht;
- int todo;
- hashitem_T *hi;
- int sourcing_lnum_off;
-
- /*
- * ":function" without argument: list functions.
- */
- if (ends_excmd(*eap->arg)) {
- if (!eap->skip) {
- todo = (int)func_hashtab.ht_used;
- for (hi = func_hashtab.ht_array; todo > 0 && !got_int; ++hi) {
- if (!HASHITEM_EMPTY(hi)) {
- --todo;
- fp = HI2UF(hi);
- if (!isdigit(*fp->uf_name))
- list_func_head(fp, FALSE);
- }
- }
- }
- eap->nextcmd = check_nextcmd(eap->arg);
- return;
- }
-
- /*
- * ":function /pat": list functions matching pattern.
- */
- if (*eap->arg == '/') {
- p = skip_regexp(eap->arg + 1, '/', TRUE, NULL);
- if (!eap->skip) {
- regmatch_T regmatch;
-
- c = *p;
- *p = NUL;
- regmatch.regprog = vim_regcomp(eap->arg + 1, RE_MAGIC);
- *p = c;
- if (regmatch.regprog != NULL) {
- regmatch.rm_ic = p_ic;
-
- todo = (int)func_hashtab.ht_used;
- for (hi = func_hashtab.ht_array; todo > 0 && !got_int; ++hi) {
- if (!HASHITEM_EMPTY(hi)) {
- --todo;
- fp = HI2UF(hi);
- if (!isdigit(*fp->uf_name)
- && vim_regexec(&regmatch, fp->uf_name, 0))
- list_func_head(fp, FALSE);
- }
- }
- vim_regfree(regmatch.regprog);
- }
- }
- if (*p == '/')
- ++p;
- eap->nextcmd = check_nextcmd(p);
- return;
- }
-
- // Get the function name. There are these situations:
- // func function name
- // "name" == func, "fudi.fd_dict" == NULL
- // dict.func new dictionary entry
- // "name" == NULL, "fudi.fd_dict" set,
- // "fudi.fd_di" == NULL, "fudi.fd_newkey" == func
- // dict.func existing dict entry with a Funcref
- // "name" == func, "fudi.fd_dict" set,
- // "fudi.fd_di" set, "fudi.fd_newkey" == NULL
- // dict.func existing dict entry that's not a Funcref
- // "name" == NULL, "fudi.fd_dict" set,
- // "fudi.fd_di" set, "fudi.fd_newkey" == NULL
- // s:func script-local function name
- // g:func global function name, same as "func"
- p = eap->arg;
- name = trans_function_name(&p, eap->skip, 0, &fudi);
- paren = (vim_strchr(p, '(') != NULL);
- if (name == NULL && (fudi.fd_dict == NULL || !paren) && !eap->skip) {
- /*
- * Return on an invalid expression in braces, unless the expression
- * evaluation has been cancelled due to an aborting error, an
- * interrupt, or an exception.
- */
- if (!aborting()) {
- if (!eap->skip && fudi.fd_newkey != NULL)
- EMSG2(_(e_dictkey), fudi.fd_newkey);
- free(fudi.fd_newkey);
- return;
- } else
- eap->skip = TRUE;
- }
-
- /* An error in a function call during evaluation of an expression in magic
- * braces should not cause the function not to be defined. */
- saved_did_emsg = did_emsg;
- did_emsg = FALSE;
-
- /*
- * ":function func" with only function name: list function.
- */
- if (!paren) {
- if (!ends_excmd(*skipwhite(p))) {
- EMSG(_(e_trailing));
- goto ret_free;
- }
- eap->nextcmd = check_nextcmd(p);
- if (eap->nextcmd != NULL)
- *p = NUL;
- if (!eap->skip && !got_int) {
- fp = find_func(name);
- if (fp != NULL) {
- list_func_head(fp, TRUE);
- for (j = 0; j < fp->uf_lines.ga_len && !got_int; ++j) {
- if (FUNCLINE(fp, j) == NULL)
- continue;
- msg_putchar('\n');
- msg_outnum((long)(j + 1));
- if (j < 9)
- msg_putchar(' ');
- if (j < 99)
- msg_putchar(' ');
- msg_prt_line(FUNCLINE(fp, j), FALSE);
- out_flush(); /* show a line at a time */
- ui_breakcheck();
- }
- if (!got_int) {
- msg_putchar('\n');
- msg_puts((char_u *)" endfunction");
- }
- } else
- emsg_funcname(N_("E123: Undefined function: %s"), name);
- }
- goto ret_free;
- }
-
- /*
- * ":function name(arg1, arg2)" Define function.
- */
- p = skipwhite(p);
- if (*p != '(') {
- if (!eap->skip) {
- EMSG2(_("E124: Missing '(': %s"), eap->arg);
- goto ret_free;
- }
- /* attempt to continue by skipping some text */
- if (vim_strchr(p, '(') != NULL)
- p = vim_strchr(p, '(');
- }
- p = skipwhite(p + 1);
-
- ga_init(&newargs, (int)sizeof(char_u *), 3);
- ga_init(&newlines, (int)sizeof(char_u *), 3);
-
- if (!eap->skip) {
- /* Check the name of the function. Unless it's a dictionary function
- * (that we are overwriting). */
- if (name != NULL)
- arg = name;
- else
- arg = fudi.fd_newkey;
- if (arg != NULL && (fudi.fd_di == NULL
- || fudi.fd_di->di_tv.v_type != VAR_FUNC)) {
- if (*arg == K_SPECIAL)
- j = 3;
- else
- j = 0;
- while (arg[j] != NUL && (j == 0 ? eval_isnamec1(arg[j])
- : eval_isnamec(arg[j])))
- ++j;
- if (arg[j] != NUL)
- emsg_funcname((char *)e_invarg2, arg);
- }
- /* Disallow using the g: dict. */
- if (fudi.fd_dict != NULL && fudi.fd_dict->dv_scope == VAR_DEF_SCOPE)
- EMSG(_("E862: Cannot use g: here"));
- }
-
- /*
- * Isolate the arguments: "arg1, arg2, ...)"
- */
- while (*p != ')') {
- if (p[0] == '.' && p[1] == '.' && p[2] == '.') {
- varargs = TRUE;
- p += 3;
- mustend = TRUE;
- } else {
- arg = p;
- while (ASCII_ISALNUM(*p) || *p == '_')
- ++p;
- if (arg == p || isdigit(*arg)
- || (p - arg == 9 && STRNCMP(arg, "firstline", 9) == 0)
- || (p - arg == 8 && STRNCMP(arg, "lastline", 8) == 0)) {
- if (!eap->skip)
- EMSG2(_("E125: Illegal argument: %s"), arg);
- break;
- }
- ga_grow(&newargs, 1);
- c = *p;
- *p = NUL;
- arg = vim_strsave(arg);
- if (arg == NULL)
- goto erret;
-
- /* Check for duplicate argument name. */
- for (i = 0; i < newargs.ga_len; ++i)
- if (STRCMP(((char_u **)(newargs.ga_data))[i], arg) == 0) {
- EMSG2(_("E853: Duplicate argument name: %s"), arg);
- free(arg);
- goto erret;
- }
-
- ((char_u **)(newargs.ga_data))[newargs.ga_len] = arg;
- *p = c;
- newargs.ga_len++;
- if (*p == ',')
- ++p;
- else
- mustend = TRUE;
- }
- p = skipwhite(p);
- if (mustend && *p != ')') {
- if (!eap->skip)
- EMSG2(_(e_invarg2), eap->arg);
- break;
- }
- }
- ++p; /* skip the ')' */
-
- /* find extra arguments "range", "dict" and "abort" */
- for (;; ) {
- p = skipwhite(p);
- if (STRNCMP(p, "range", 5) == 0) {
- flags |= FC_RANGE;
- p += 5;
- } else if (STRNCMP(p, "dict", 4) == 0) {
- flags |= FC_DICT;
- p += 4;
- } else if (STRNCMP(p, "abort", 5) == 0) {
- flags |= FC_ABORT;
- p += 5;
- } else
- break;
- }
-
- /* When there is a line break use what follows for the function body.
- * Makes 'exe "func Test()\n...\nendfunc"' work. */
- if (*p == '\n')
- line_arg = p + 1;
- else if (*p != NUL && *p != '"' && !eap->skip && !did_emsg)
- EMSG(_(e_trailing));
-
- /*
- * Read the body of the function, until ":endfunction" is found.
- */
- if (KeyTyped) {
- /* Check if the function already exists, don't let the user type the
- * whole function before telling him it doesn't work! For a script we
- * need to skip the body to be able to find what follows. */
- if (!eap->skip && !eap->forceit) {
- if (fudi.fd_dict != NULL && fudi.fd_newkey == NULL)
- EMSG(_(e_funcdict));
- else if (name != NULL && find_func(name) != NULL)
- emsg_funcname(e_funcexts, name);
- }
-
- if (!eap->skip && did_emsg)
- goto erret;
-
- msg_putchar('\n'); /* don't overwrite the function name */
- cmdline_row = msg_row;
- }
-
- indent = 2;
- nesting = 0;
- for (;; ) {
- if (KeyTyped) {
- msg_scroll = TRUE;
- saved_wait_return = FALSE;
- }
- need_wait_return = FALSE;
- sourcing_lnum_off = sourcing_lnum;
-
- if (line_arg != NULL) {
- /* Use eap->arg, split up in parts by line breaks. */
- theline = line_arg;
- p = vim_strchr(theline, '\n');
- if (p == NULL)
- line_arg += STRLEN(line_arg);
- else {
- *p = NUL;
- line_arg = p + 1;
- }
- } else if (eap->getline == NULL)
- theline = getcmdline(':', 0L, indent);
- else
- theline = eap->getline(':', eap->cookie, indent);
- if (KeyTyped)
- lines_left = Rows - 1;
- if (theline == NULL) {
- EMSG(_("E126: Missing :endfunction"));
- goto erret;
- }
-
- /* Detect line continuation: sourcing_lnum increased more than one. */
- if (sourcing_lnum > sourcing_lnum_off + 1)
- sourcing_lnum_off = sourcing_lnum - sourcing_lnum_off - 1;
- else
- sourcing_lnum_off = 0;
-
- if (skip_until != NULL) {
- /* between ":append" and "." and between ":python <<EOF" and "EOF"
- * don't check for ":endfunc". */
- if (STRCMP(theline, skip_until) == 0) {
- free(skip_until);
- skip_until = NULL;
- }
- } else {
- /* skip ':' and blanks*/
- for (p = theline; vim_iswhite(*p) || *p == ':'; ++p)
- ;
-
- /* Check for "endfunction". */
- if (checkforcmd(&p, "endfunction", 4) && nesting-- == 0) {
- if (line_arg == NULL)
- free(theline);
- break;
- }
-
- /* Increase indent inside "if", "while", "for" and "try", decrease
- * at "end". */
- if (indent > 2 && STRNCMP(p, "end", 3) == 0)
- indent -= 2;
- else if (STRNCMP(p, "if", 2) == 0
- || STRNCMP(p, "wh", 2) == 0
- || STRNCMP(p, "for", 3) == 0
- || STRNCMP(p, "try", 3) == 0)
- indent += 2;
-
- /* Check for defining a function inside this function. */
- if (checkforcmd(&p, "function", 2)) {
- if (*p == '!')
- p = skipwhite(p + 1);
- p += eval_fname_script(p);
- if (ASCII_ISALPHA(*p)) {
- free(trans_function_name(&p, TRUE, 0, NULL));
- if (*skipwhite(p) == '(') {
- ++nesting;
- indent += 2;
- }
- }
- }
-
- /* Check for ":append" or ":insert". */
- p = skip_range(p, NULL);
- if ((p[0] == 'a' && (!ASCII_ISALPHA(p[1]) || p[1] == 'p'))
- || (p[0] == 'i'
- && (!ASCII_ISALPHA(p[1]) || (p[1] == 'n'
- && (!ASCII_ISALPHA(p[2]) ||
- (p[2] == 's'))))))
- skip_until = vim_strsave((char_u *)".");
-
- /* Check for ":python <<EOF", ":tcl <<EOF", etc. */
- arg = skipwhite(skiptowhite(p));
- if (arg[0] == '<' && arg[1] =='<'
- && ((p[0] == 'p' && p[1] == 'y'
- && (!ASCII_ISALPHA(p[2]) || p[2] == 't'))
- || (p[0] == 'p' && p[1] == 'e'
- && (!ASCII_ISALPHA(p[2]) || p[2] == 'r'))
- || (p[0] == 't' && p[1] == 'c'
- && (!ASCII_ISALPHA(p[2]) || p[2] == 'l'))
- || (p[0] == 'l' && p[1] == 'u' && p[2] == 'a'
- && !ASCII_ISALPHA(p[3]))
- || (p[0] == 'r' && p[1] == 'u' && p[2] == 'b'
- && (!ASCII_ISALPHA(p[3]) || p[3] == 'y'))
- || (p[0] == 'm' && p[1] == 'z'
- && (!ASCII_ISALPHA(p[2]) || p[2] == 's'))
- )) {
- /* ":python <<" continues until a dot, like ":append" */
- p = skipwhite(arg + 2);
- if (*p == NUL)
- skip_until = vim_strsave((char_u *)".");
- else
- skip_until = vim_strsave(p);
- }
- }
-
- /* Add the line to the function. */
- ga_grow(&newlines, 1 + sourcing_lnum_off);
-
- /* Copy the line to newly allocated memory. get_one_sourceline()
- * allocates 250 bytes per line, this saves 80% on average. The cost
- * is an extra alloc/free. */
- p = vim_strsave(theline);
- if (p != NULL) {
- if (line_arg == NULL)
- free(theline);
- theline = p;
- }
-
- ((char_u **)(newlines.ga_data))[newlines.ga_len++] = theline;
-
- /* Add NULL lines for continuation lines, so that the line count is
- * equal to the index in the growarray. */
- while (sourcing_lnum_off-- > 0)
- ((char_u **)(newlines.ga_data))[newlines.ga_len++] = NULL;
-
- /* Check for end of eap->arg. */
- if (line_arg != NULL && *line_arg == NUL)
- line_arg = NULL;
- }
-
- /* Don't define the function when skipping commands or when an error was
- * detected. */
- if (eap->skip || did_emsg)
- goto erret;
-
- /*
- * If there are no errors, add the function
- */
- if (fudi.fd_dict == NULL) {
- v = find_var(name, &ht, FALSE);
- if (v != NULL && v->di_tv.v_type == VAR_FUNC) {
- emsg_funcname(N_("E707: Function name conflicts with variable: %s"),
- name);
- goto erret;
- }
-
- fp = find_func(name);
- if (fp != NULL) {
- if (!eap->forceit) {
- emsg_funcname(e_funcexts, name);
- goto erret;
- }
- if (fp->uf_calls > 0) {
- emsg_funcname(N_("E127: Cannot redefine function %s: It is in use"),
- name);
- goto erret;
- }
- /* redefine existing function */
- ga_clear_strings(&(fp->uf_args));
- ga_clear_strings(&(fp->uf_lines));
- free(name);
- name = NULL;
- }
- } else {
- char numbuf[20];
-
- fp = NULL;
- if (fudi.fd_newkey == NULL && !eap->forceit) {
- EMSG(_(e_funcdict));
- goto erret;
- }
- if (fudi.fd_di == NULL) {
- /* Can't add a function to a locked dictionary */
- if (tv_check_lock(fudi.fd_dict->dv_lock, eap->arg))
- goto erret;
- }
- /* Can't change an existing function if it is locked */
- else if (tv_check_lock(fudi.fd_di->di_tv.v_lock, eap->arg))
- goto erret;
-
- /* Give the function a sequential number. Can only be used with a
- * Funcref! */
- free(name);
- sprintf(numbuf, "%d", ++func_nr);
- name = vim_strsave((char_u *)numbuf);
- if (name == NULL)
- goto erret;
- }
-
- if (fp == NULL) {
- if (fudi.fd_dict == NULL && vim_strchr(name, AUTOLOAD_CHAR) != NULL) {
- int slen, plen;
- char_u *scriptname;
-
- /* Check that the autoload name matches the script name. */
- j = FAIL;
- if (sourcing_name != NULL) {
- scriptname = autoload_name(name);
- if (scriptname != NULL) {
- p = vim_strchr(scriptname, '/');
- plen = (int)STRLEN(p);
- slen = (int)STRLEN(sourcing_name);
- if (slen > plen && fnamecmp(p,
- sourcing_name + slen - plen) == 0)
- j = OK;
- free(scriptname);
- }
- }
- if (j == FAIL) {
- EMSG2(_(
- "E746: Function name does not match script file name: %s"),
- name);
- goto erret;
- }
- }
-
- fp = (ufunc_T *)alloc((unsigned)(sizeof(ufunc_T) + STRLEN(name)));
- if (fp == NULL)
- goto erret;
-
- if (fudi.fd_dict != NULL) {
- if (fudi.fd_di == NULL) {
- /* add new dict entry */
- fudi.fd_di = dictitem_alloc(fudi.fd_newkey);
- if (fudi.fd_di == NULL) {
- free(fp);
- goto erret;
- }
- if (dict_add(fudi.fd_dict, fudi.fd_di) == FAIL) {
- free(fudi.fd_di);
- free(fp);
- goto erret;
- }
- } else
- /* overwrite existing dict entry */
- clear_tv(&fudi.fd_di->di_tv);
- fudi.fd_di->di_tv.v_type = VAR_FUNC;
- fudi.fd_di->di_tv.v_lock = 0;
- fudi.fd_di->di_tv.vval.v_string = vim_strsave(name);
- fp->uf_refcount = 1;
-
- /* behave like "dict" was used */
- flags |= FC_DICT;
- }
-
- /* insert the new function in the function list */
- STRCPY(fp->uf_name, name);
- hash_add(&func_hashtab, UF2HIKEY(fp));
- }
- fp->uf_args = newargs;
- fp->uf_lines = newlines;
- fp->uf_tml_count = NULL;
- fp->uf_tml_total = NULL;
- fp->uf_tml_self = NULL;
- fp->uf_profiling = FALSE;
- if (prof_def_func())
- func_do_profile(fp);
- fp->uf_varargs = varargs;
- fp->uf_flags = flags;
- fp->uf_calls = 0;
- fp->uf_script_ID = current_SID;
- goto ret_free;
-
-erret:
- ga_clear_strings(&newargs);
- ga_clear_strings(&newlines);
-ret_free:
- free(skip_until);
- free(fudi.fd_newkey);
- free(name);
- did_emsg |= saved_did_emsg;
- need_wait_return |= saved_wait_return;
-}
-
-/*
- * Get a function name, translating "<SID>" and "<SNR>".
- * Also handles a Funcref in a List or Dictionary.
- * Returns the function name in allocated memory, or NULL for failure.
- * flags:
- * TFN_INT: internal function name OK
- * TFN_QUIET: be quiet
- * TFN_NO_AUTOLOAD: do not use script autoloading
- * Advances "pp" to just after the function name (if no error).
- */
-static char_u *
-trans_function_name (
- char_u **pp,
- int skip, /* only find the end, don't evaluate */
- int flags,
- funcdict_T *fdp /* return: info about dictionary used */
-)
-{
- char_u *name = NULL;
- char_u *start;
- char_u *end;
- int lead;
- char_u sid_buf[20];
- int len;
- lval_T lv;
-
- if (fdp != NULL)
- memset(fdp, 0, sizeof(funcdict_T));
- start = *pp;
-
- /* Check for hard coded <SNR>: already translated function ID (from a user
- * command). */
- if ((*pp)[0] == K_SPECIAL && (*pp)[1] == KS_EXTRA
- && (*pp)[2] == (int)KE_SNR) {
- *pp += 3;
- len = get_id_len(pp) + 3;
- return vim_strnsave(start, len);
- }
-
- /* A name starting with "<SID>" or "<SNR>" is local to a script. But
- * don't skip over "s:", get_lval() needs it for "s:dict.func". */
- lead = eval_fname_script(start);
- if (lead > 2)
- start += lead;
-
- /* Note that TFN_ flags use the same values as GLV_ flags. */
- end = get_lval(start, NULL, &lv, FALSE, skip, flags,
- lead > 2 ? 0 : FNE_CHECK_START);
- if (end == start) {
- if (!skip)
- EMSG(_("E129: Function name required"));
- goto theend;
- }
- if (end == NULL || (lv.ll_tv != NULL && (lead > 2 || lv.ll_range))) {
- /*
- * Report an invalid expression in braces, unless the expression
- * evaluation has been cancelled due to an aborting error, an
- * interrupt, or an exception.
- */
- if (!aborting()) {
- if (end != NULL)
- EMSG2(_(e_invarg2), start);
- } else
- *pp = find_name_end(start, NULL, NULL, FNE_INCL_BR);
- goto theend;
- }
-
- if (lv.ll_tv != NULL) {
- if (fdp != NULL) {
- fdp->fd_dict = lv.ll_dict;
- fdp->fd_newkey = lv.ll_newkey;
- lv.ll_newkey = NULL;
- fdp->fd_di = lv.ll_di;
- }
- if (lv.ll_tv->v_type == VAR_FUNC && lv.ll_tv->vval.v_string != NULL) {
- name = vim_strsave(lv.ll_tv->vval.v_string);
- *pp = end;
- } else {
- if (!skip && !(flags & TFN_QUIET) && (fdp == NULL
- || lv.ll_dict == NULL ||
- fdp->fd_newkey == NULL))
- EMSG(_(e_funcref));
- else
- *pp = end;
- name = NULL;
- }
- goto theend;
- }
-
- if (lv.ll_name == NULL) {
- /* Error found, but continue after the function name. */
- *pp = end;
- goto theend;
- }
-
- /* Check if the name is a Funcref. If so, use the value. */
- if (lv.ll_exp_name != NULL) {
- len = (int)STRLEN(lv.ll_exp_name);
- name = deref_func_name(lv.ll_exp_name, &len, flags & TFN_NO_AUTOLOAD);
- if (name == lv.ll_exp_name)
- name = NULL;
- } else {
- len = (int)(end - *pp);
- name = deref_func_name(*pp, &len, flags & TFN_NO_AUTOLOAD);
- if (name == *pp)
- name = NULL;
- }
- if (name != NULL) {
- name = vim_strsave(name);
- *pp = end;
- if (strncmp((char *)name, "<SNR>", 5) == 0) {
- // Change "<SNR>" to the byte sequence.
- name[0] = K_SPECIAL;
- name[1] = KS_EXTRA;
- name[2] = (int)KE_SNR;
- memmove(name + 3, name + 5, strlen((char *)name + 5) + 1);
- }
- goto theend;
- }
-
- if (lv.ll_exp_name != NULL) {
- len = (int)STRLEN(lv.ll_exp_name);
- if (lead <= 2 && lv.ll_name == lv.ll_exp_name
- && STRNCMP(lv.ll_name, "s:", 2) == 0) {
- /* When there was "s:" already or the name expanded to get a
- * leading "s:" then remove it. */
- lv.ll_name += 2;
- len -= 2;
- lead = 2;
- }
- } else {
- // Skip over "s:" and "g:".
- if (lead == 2 || (lv.ll_name[0] == 'g' && lv.ll_name[1] == ':')) {
- lv.ll_name += 2;
- }
- len = (int)(end - lv.ll_name);
- }
-
- /*
- * Copy the function name to allocated memory.
- * Accept <SID>name() inside a script, translate into <SNR>123_name().
- * Accept <SNR>123_name() outside a script.
- */
- if (skip)
- lead = 0; /* do nothing */
- else if (lead > 0) {
- lead = 3;
- if ((lv.ll_exp_name != NULL && eval_fname_sid(lv.ll_exp_name))
- || eval_fname_sid(*pp)) {
- /* It's "s:" or "<SID>" */
- if (current_SID <= 0) {
- EMSG(_(e_usingsid));
- goto theend;
- }
- sprintf((char *)sid_buf, "%" PRId64 "_", (int64_t)current_SID);
- lead += (int)STRLEN(sid_buf);
- }
- } else if (!(flags & TFN_INT) && builtin_function(lv.ll_name, len)) {
- EMSG2(_("E128: Function name must start with a capital or \"s:\": %s"),
- start);
- goto theend;
- }
-
- if (!skip && !(flags & TFN_QUIET)) {
- char_u *cp = vim_strchr(lv.ll_name, ':');
-
- if (cp != NULL && cp < end) {
- EMSG2(_("E884: Function name cannot contain a colon: %s"), start);
- goto theend;
- }
- }
-
- name = alloc((unsigned)(len + lead + 1));
- if (name != NULL) {
- if (lead > 0) {
- name[0] = K_SPECIAL;
- name[1] = KS_EXTRA;
- name[2] = (int)KE_SNR;
- if (lead > 3) /* If it's "<SID>" */
- STRCPY(name + 3, sid_buf);
- }
- memmove(name + lead, lv.ll_name, (size_t)len);
- name[lead + len] = NUL;
- }
- *pp = end;
-
-theend:
- clear_lval(&lv);
- return name;
-}
-
-/*
- * Return 5 if "p" starts with "<SID>" or "<SNR>" (ignoring case).
- * Return 2 if "p" starts with "s:".
- * Return 0 otherwise.
- */
-static int eval_fname_script(char_u *p)
-{
- if (p[0] == '<' && (STRNICMP(p + 1, "SID>", 4) == 0
- || STRNICMP(p + 1, "SNR>", 4) == 0))
- return 5;
- if (p[0] == 's' && p[1] == ':')
- return 2;
- return 0;
-}
-
-/*
- * Return TRUE if "p" starts with "<SID>" or "s:".
- * Only works if eval_fname_script() returned non-zero for "p"!
- */
-static int eval_fname_sid(char_u *p)
-{
- return *p == 's' || TOUPPER_ASC(p[2]) == 'I';
-}
-
-/*
- * List the head of the function: "name(arg1, arg2)".
- */
-static void list_func_head(ufunc_T *fp, int indent)
-{
- int j;
-
- msg_start();
- if (indent)
- MSG_PUTS(" ");
- MSG_PUTS("function ");
- if (fp->uf_name[0] == K_SPECIAL) {
- MSG_PUTS_ATTR("<SNR>", hl_attr(HLF_8));
- msg_puts(fp->uf_name + 3);
- } else
- msg_puts(fp->uf_name);
- msg_putchar('(');
- for (j = 0; j < fp->uf_args.ga_len; ++j) {
- if (j)
- MSG_PUTS(", ");
- msg_puts(FUNCARG(fp, j));
- }
- if (fp->uf_varargs) {
- if (j)
- MSG_PUTS(", ");
- MSG_PUTS("...");
- }
- msg_putchar(')');
- if (fp->uf_flags & FC_ABORT)
- MSG_PUTS(" abort");
- if (fp->uf_flags & FC_RANGE)
- MSG_PUTS(" range");
- if (fp->uf_flags & FC_DICT)
- MSG_PUTS(" dict");
- msg_clr_eos();
- if (p_verbose > 0)
- last_set_msg(fp->uf_script_ID);
-}
-
-/*
- * Find a function by name, return pointer to it in ufuncs.
- * Return NULL for unknown function.
- */
-static ufunc_T *find_func(char_u *name)
-{
- hashitem_T *hi;
-
- hi = hash_find(&func_hashtab, name);
- if (!HASHITEM_EMPTY(hi))
- return HI2UF(hi);
- return NULL;
-}
-
-#if defined(EXITFREE) || defined(PROTO)
-void free_all_functions(void)
-{
- hashitem_T *hi;
-
- /* Need to start all over every time, because func_free() may change the
- * hash table. */
- while (func_hashtab.ht_used > 0)
- for (hi = func_hashtab.ht_array;; ++hi)
- if (!HASHITEM_EMPTY(hi)) {
- func_free(HI2UF(hi));
- break;
- }
-}
-
-#endif
-
-int translated_function_exists(char_u *name)
-{
- if (builtin_function(name, -1)) {
- return find_internal_func(name) >= 0;
- }
- return find_func(name) != NULL;
-}
-
-/*
- * Return TRUE if a function "name" exists.
- */
-static int function_exists(char_u *name)
-{
- char_u *nm = name;
- char_u *p;
- int n = FALSE;
-
- p = trans_function_name(&nm, FALSE, TFN_INT|TFN_QUIET|TFN_NO_AUTOLOAD,
- NULL);
- nm = skipwhite(nm);
-
- /* Only accept "funcname", "funcname ", "funcname (..." and
- * "funcname(...", not "funcname!...". */
- if (p != NULL && (*nm == NUL || *nm == '('))
- n = translated_function_exists(p);
- free(p);
- return n;
-}
-
-char_u *get_expanded_name(char_u *name, int check)
-{
- char_u *nm = name;
- char_u *p;
-
- p = trans_function_name(&nm, FALSE, TFN_INT|TFN_QUIET, NULL);
-
- if (p != NULL && *nm == NUL)
- if (!check || translated_function_exists(p))
- return p;
-
- free(p);
- return NULL;
-}
-
-/// Return TRUE if "name" looks like a builtin function name: starts with a
-/// lower case letter and doesn't contain AUTOLOAD_CHAR.
-/// "len" is the length of "name", or -1 for NUL terminated.
-static bool builtin_function(char_u *name, int len)
-{
- if (!ASCII_ISLOWER(name[0])) {
- return FALSE;
- }
-
- char_u *p = vim_strchr(name, AUTOLOAD_CHAR);
-
- return p == NULL
- || (len > 0 && p > name + len);
-}
-
-/*
- * Start profiling function "fp".
- */
-static void func_do_profile(ufunc_T *fp)
-{
- int len = fp->uf_lines.ga_len;
-
- if (len == 0)
- len = 1; /* avoid getting error for allocating zero bytes */
- fp->uf_tm_count = 0;
- profile_zero(&fp->uf_tm_self);
- profile_zero(&fp->uf_tm_total);
-
- if (fp->uf_tml_count == NULL) {
- fp->uf_tml_count = xcalloc(len, sizeof(int));
- }
-
- if (fp->uf_tml_total == NULL) {
- fp->uf_tml_total = xcalloc(len, sizeof(proftime_T));
- }
-
- if (fp->uf_tml_self == NULL) {
- fp->uf_tml_self = xcalloc(len, sizeof(proftime_T));
- }
-
- fp->uf_tml_idx = -1;
- if (fp->uf_tml_count == NULL || fp->uf_tml_total == NULL
- || fp->uf_tml_self == NULL)
- return; /* out of memory */
-
- fp->uf_profiling = TRUE;
-}
-
-/*
- * Dump the profiling results for all functions in file "fd".
- */
-void func_dump_profile(FILE *fd)
-{
- hashitem_T *hi;
- int todo;
- ufunc_T *fp;
- int i;
- ufunc_T **sorttab;
- int st_len = 0;
-
- todo = (int)func_hashtab.ht_used;
- if (todo == 0)
- return; /* nothing to dump */
-
- sorttab = (ufunc_T **)alloc((unsigned)(sizeof(ufunc_T) * todo));
-
- for (hi = func_hashtab.ht_array; todo > 0; ++hi) {
- if (!HASHITEM_EMPTY(hi)) {
- --todo;
- fp = HI2UF(hi);
- if (fp->uf_profiling) {
- if (sorttab != NULL)
- sorttab[st_len++] = fp;
-
- if (fp->uf_name[0] == K_SPECIAL)
- fprintf(fd, "FUNCTION <SNR>%s()\n", fp->uf_name + 3);
- else
- fprintf(fd, "FUNCTION %s()\n", fp->uf_name);
- if (fp->uf_tm_count == 1)
- fprintf(fd, "Called 1 time\n");
- else
- fprintf(fd, "Called %d times\n", fp->uf_tm_count);
- fprintf(fd, "Total time: %s\n", profile_msg(&fp->uf_tm_total));
- fprintf(fd, " Self time: %s\n", profile_msg(&fp->uf_tm_self));
- fprintf(fd, "\n");
- fprintf(fd, "count total (s) self (s)\n");
-
- for (i = 0; i < fp->uf_lines.ga_len; ++i) {
- if (FUNCLINE(fp, i) == NULL)
- continue;
- prof_func_line(fd, fp->uf_tml_count[i],
- &fp->uf_tml_total[i], &fp->uf_tml_self[i], TRUE);
- fprintf(fd, "%s\n", FUNCLINE(fp, i));
- }
- fprintf(fd, "\n");
- }
- }
- }
-
- if (sorttab != NULL && st_len > 0) {
- qsort((void *)sorttab, (size_t)st_len, sizeof(ufunc_T *),
- prof_total_cmp);
- prof_sort_list(fd, sorttab, st_len, "TOTAL", FALSE);
- qsort((void *)sorttab, (size_t)st_len, sizeof(ufunc_T *),
- prof_self_cmp);
- prof_sort_list(fd, sorttab, st_len, "SELF", TRUE);
- }
-
- free(sorttab);
-}
-
-static void
-prof_sort_list (
- FILE *fd,
- ufunc_T **sorttab,
- int st_len,
- char *title,
- int prefer_self /* when equal print only self time */
-)
-{
- int i;
- ufunc_T *fp;
-
- fprintf(fd, "FUNCTIONS SORTED ON %s TIME\n", title);
- fprintf(fd, "count total (s) self (s) function\n");
- for (i = 0; i < 20 && i < st_len; ++i) {
- fp = sorttab[i];
- prof_func_line(fd, fp->uf_tm_count, &fp->uf_tm_total, &fp->uf_tm_self,
- prefer_self);
- if (fp->uf_name[0] == K_SPECIAL)
- fprintf(fd, " <SNR>%s()\n", fp->uf_name + 3);
- else
- fprintf(fd, " %s()\n", fp->uf_name);
- }
- fprintf(fd, "\n");
-}
-
-/*
- * Print the count and times for one function or function line.
- */
-static void prof_func_line(fd, count, total, self, prefer_self)
-FILE *fd;
-int count;
-proftime_T *total;
-proftime_T *self;
-int prefer_self; /* when equal print only self time */
-{
- if (count > 0) {
- fprintf(fd, "%5d ", count);
- if (prefer_self && profile_equal(total, self))
- fprintf(fd, " ");
- else
- fprintf(fd, "%s ", profile_msg(total));
- if (!prefer_self && profile_equal(total, self))
- fprintf(fd, " ");
- else
- fprintf(fd, "%s ", profile_msg(self));
- } else
- fprintf(fd, " ");
-}
-
-/*
- * Compare function for total time sorting.
- */
-static int prof_total_cmp(const void *s1, const void *s2)
-{
- ufunc_T *p1, *p2;
-
- p1 = *(ufunc_T **)s1;
- p2 = *(ufunc_T **)s2;
- return profile_cmp(&p1->uf_tm_total, &p2->uf_tm_total);
-}
-
-/*
- * Compare function for self time sorting.
- */
-static int prof_self_cmp(const void *s1, const void *s2)
-{
- ufunc_T *p1, *p2;
-
- p1 = *(ufunc_T **)s1;
- p2 = *(ufunc_T **)s2;
- return profile_cmp(&p1->uf_tm_self, &p2->uf_tm_self);
-}
-
-
-/*
- * If "name" has a package name try autoloading the script for it.
- * Return TRUE if a package was loaded.
- */
-static int
-script_autoload (
- char_u *name,
- int reload /* load script again when already loaded */
-)
-{
- char_u *p;
- char_u *scriptname, *tofree;
- int ret = FALSE;
- int i;
-
- /* If there is no '#' after name[0] there is no package name. */
- p = vim_strchr(name, AUTOLOAD_CHAR);
- if (p == NULL || p == name)
- return FALSE;
-
- tofree = scriptname = autoload_name(name);
-
- /* Find the name in the list of previously loaded package names. Skip
- * "autoload/", it's always the same. */
- for (i = 0; i < ga_loaded.ga_len; ++i)
- if (STRCMP(((char_u **)ga_loaded.ga_data)[i] + 9, scriptname + 9) == 0)
- break;
- if (!reload && i < ga_loaded.ga_len)
- ret = FALSE; /* was loaded already */
- else {
- /* Remember the name if it wasn't loaded already. */
- if (i == ga_loaded.ga_len) {
- ga_grow(&ga_loaded, 1);
- ((char_u **)ga_loaded.ga_data)[ga_loaded.ga_len++] = scriptname;
- tofree = NULL;
- }
-
- /* Try loading the package from $VIMRUNTIME/autoload/<name>.vim */
- if (source_runtime(scriptname, FALSE) == OK)
- ret = TRUE;
- }
-
- free(tofree);
- return ret;
-}
-
-/*
- * Return the autoload script name for a function or variable name.
- * Returns NULL when out of memory.
- */
-static char_u *autoload_name(char_u *name)
-{
- char_u *p;
- char_u *scriptname;
-
- /* Get the script file name: replace '#' with '/', append ".vim". */
- scriptname = alloc((unsigned)(STRLEN(name) + 14));
- if (scriptname == NULL)
- return FALSE;
- STRCPY(scriptname, "autoload/");
- STRCAT(scriptname, name);
- *vim_strrchr(scriptname, AUTOLOAD_CHAR) = NUL;
- STRCAT(scriptname, ".vim");
- while ((p = vim_strchr(scriptname, AUTOLOAD_CHAR)) != NULL)
- *p = '/';
- return scriptname;
-}
-
-
-/*
- * Function given to ExpandGeneric() to obtain the list of user defined
- * function names.
- */
-char_u *get_user_func_name(expand_T *xp, int idx)
-{
- static long_u done;
- static hashitem_T *hi;
- ufunc_T *fp;
-
- if (idx == 0) {
- done = 0;
- hi = func_hashtab.ht_array;
- }
- if (done < func_hashtab.ht_used) {
- if (done++ > 0)
- ++hi;
- while (HASHITEM_EMPTY(hi))
- ++hi;
- fp = HI2UF(hi);
-
- if (fp->uf_flags & FC_DICT)
- return (char_u *)""; /* don't show dict functions */
-
- if (STRLEN(fp->uf_name) + 4 >= IOSIZE)
- return fp->uf_name; /* prevents overflow */
-
- cat_func_name(IObuff, fp);
- if (xp->xp_context != EXPAND_USER_FUNC) {
- STRCAT(IObuff, "(");
- if (!fp->uf_varargs && fp->uf_args.ga_len == 0)
- STRCAT(IObuff, ")");
- }
- return IObuff;
- }
- return NULL;
-}
-
-
-/*
- * Copy the function name of "fp" to buffer "buf".
- * "buf" must be able to hold the function name plus three bytes.
- * Takes care of script-local function names.
- */
-static void cat_func_name(char_u *buf, ufunc_T *fp)
-{
- if (fp->uf_name[0] == K_SPECIAL) {
- STRCPY(buf, "<SNR>");
- STRCAT(buf, fp->uf_name + 3);
- } else
- STRCPY(buf, fp->uf_name);
-}
-
-/*
- * ":delfunction {name}"
- */
-void ex_delfunction(exarg_T *eap)
-{
- ufunc_T *fp = NULL;
- char_u *p;
- char_u *name;
- funcdict_T fudi;
-
- p = eap->arg;
- name = trans_function_name(&p, eap->skip, 0, &fudi);
- free(fudi.fd_newkey);
- if (name == NULL) {
- if (fudi.fd_dict != NULL && !eap->skip)
- EMSG(_(e_funcref));
- return;
- }
- if (!ends_excmd(*skipwhite(p))) {
- free(name);
- EMSG(_(e_trailing));
- return;
- }
- eap->nextcmd = check_nextcmd(p);
- if (eap->nextcmd != NULL)
- *p = NUL;
-
- if (!eap->skip)
- fp = find_func(name);
- free(name);
-
- if (!eap->skip) {
- if (fp == NULL) {
- EMSG2(_(e_nofunc), eap->arg);
- return;
- }
- if (fp->uf_calls > 0) {
- EMSG2(_("E131: Cannot delete function %s: It is in use"), eap->arg);
- return;
- }
-
- if (fudi.fd_dict != NULL) {
- /* Delete the dict item that refers to the function, it will
- * invoke func_unref() and possibly delete the function. */
- dictitem_remove(fudi.fd_dict, fudi.fd_di);
- } else
- func_free(fp);
- }
-}
-
-/*
- * Free a function and remove it from the list of functions.
- */
-static void func_free(ufunc_T *fp)
-{
- hashitem_T *hi;
-
- /* clear this function */
- ga_clear_strings(&(fp->uf_args));
- ga_clear_strings(&(fp->uf_lines));
- free(fp->uf_tml_count);
- free(fp->uf_tml_total);
- free(fp->uf_tml_self);
-
- /* remove the function from the function hashtable */
- hi = hash_find(&func_hashtab, UF2HIKEY(fp));
- if (HASHITEM_EMPTY(hi))
- EMSG2(_(e_intern2), "func_free()");
- else
- hash_remove(&func_hashtab, hi);
-
- free(fp);
-}
-
-/*
- * Unreference a Function: decrement the reference count and free it when it
- * becomes zero. Only for numbered functions.
- */
-void func_unref(char_u *name)
-{
- ufunc_T *fp;
-
- if (name != NULL && isdigit(*name)) {
- fp = find_func(name);
- if (fp == NULL)
- EMSG2(_(e_intern2), "func_unref()");
- else if (--fp->uf_refcount <= 0) {
- /* Only delete it when it's not being used. Otherwise it's done
- * when "uf_calls" becomes zero. */
- if (fp->uf_calls == 0)
- func_free(fp);
- }
- }
-}
-
-/*
- * Count a reference to a Function.
- */
-void func_ref(char_u *name)
-{
- ufunc_T *fp;
-
- if (name != NULL && isdigit(*name)) {
- fp = find_func(name);
- if (fp == NULL)
- EMSG2(_(e_intern2), "func_ref()");
- else
- ++fp->uf_refcount;
- }
-}
-
-/*
- * Call a user function.
- */
-static void
-call_user_func (
- ufunc_T *fp, /* pointer to function */
- int argcount, /* nr of args */
- typval_T *argvars, /* arguments */
- typval_T *rettv, /* return value */
- linenr_T firstline, /* first line of range */
- linenr_T lastline, /* last line of range */
- dict_T *selfdict /* Dictionary for "self" */
-)
-{
- char_u *save_sourcing_name;
- linenr_T save_sourcing_lnum;
- scid_T save_current_SID;
- funccall_T *fc;
- int save_did_emsg;
- static int depth = 0;
- dictitem_T *v;
- int fixvar_idx = 0; /* index in fixvar[] */
- int i;
- int ai;
- char_u numbuf[NUMBUFLEN];
- char_u *name;
- proftime_T wait_start;
- proftime_T call_start;
-
- /* If depth of calling is getting too high, don't execute the function */
- if (depth >= p_mfd) {
- EMSG(_("E132: Function call depth is higher than 'maxfuncdepth'"));
- rettv->v_type = VAR_NUMBER;
- rettv->vval.v_number = -1;
- return;
- }
- ++depth;
-
- line_breakcheck(); /* check for CTRL-C hit */
-
- fc = (funccall_T *)alloc(sizeof(funccall_T));
- fc->caller = current_funccal;
- current_funccal = fc;
- fc->func = fp;
- fc->rettv = rettv;
- rettv->vval.v_number = 0;
- fc->linenr = 0;
- fc->returned = FALSE;
- fc->level = ex_nesting_level;
- /* Check if this function has a breakpoint. */
- fc->breakpoint = dbg_find_breakpoint(FALSE, fp->uf_name, (linenr_T)0);
- fc->dbg_tick = debug_tick;
-
- /*
- * Note about using fc->fixvar[]: This is an array of FIXVAR_CNT variables
- * with names up to VAR_SHORT_LEN long. This avoids having to alloc/free
- * each argument variable and saves a lot of time.
- */
- /*
- * Init l: variables.
- */
- init_var_dict(&fc->l_vars, &fc->l_vars_var, VAR_DEF_SCOPE);
- if (selfdict != NULL) {
- /* Set l:self to "selfdict". Use "name" to avoid a warning from
- * some compiler that checks the destination size. */
- v = &fc->fixvar[fixvar_idx++].var;
- name = v->di_key;
- STRCPY(name, "self");
- v->di_flags = DI_FLAGS_RO + DI_FLAGS_FIX;
- hash_add(&fc->l_vars.dv_hashtab, DI2HIKEY(v));
- v->di_tv.v_type = VAR_DICT;
- v->di_tv.v_lock = 0;
- v->di_tv.vval.v_dict = selfdict;
- ++selfdict->dv_refcount;
- }
-
- /*
- * Init a: variables.
- * Set a:0 to "argcount".
- * Set a:000 to a list with room for the "..." arguments.
- */
- init_var_dict(&fc->l_avars, &fc->l_avars_var, VAR_SCOPE);
- add_nr_var(&fc->l_avars, &fc->fixvar[fixvar_idx++].var, "0",
- (varnumber_T)(argcount - fp->uf_args.ga_len));
- /* Use "name" to avoid a warning from some compiler that checks the
- * destination size. */
- v = &fc->fixvar[fixvar_idx++].var;
- name = v->di_key;
- STRCPY(name, "000");
- v->di_flags = DI_FLAGS_RO | DI_FLAGS_FIX;
- hash_add(&fc->l_avars.dv_hashtab, DI2HIKEY(v));
- v->di_tv.v_type = VAR_LIST;
- v->di_tv.v_lock = VAR_FIXED;
- v->di_tv.vval.v_list = &fc->l_varlist;
- memset(&fc->l_varlist, 0, sizeof(list_T));
- fc->l_varlist.lv_refcount = DO_NOT_FREE_CNT;
- fc->l_varlist.lv_lock = VAR_FIXED;
-
- /*
- * Set a:firstline to "firstline" and a:lastline to "lastline".
- * Set a:name to named arguments.
- * Set a:N to the "..." arguments.
- */
- add_nr_var(&fc->l_avars, &fc->fixvar[fixvar_idx++].var, "firstline",
- (varnumber_T)firstline);
- add_nr_var(&fc->l_avars, &fc->fixvar[fixvar_idx++].var, "lastline",
- (varnumber_T)lastline);
- for (i = 0; i < argcount; ++i) {
- ai = i - fp->uf_args.ga_len;
- if (ai < 0)
- /* named argument a:name */
- name = FUNCARG(fp, i);
- else {
- /* "..." argument a:1, a:2, etc. */
- sprintf((char *)numbuf, "%d", ai + 1);
- name = numbuf;
- }
- if (fixvar_idx < FIXVAR_CNT && STRLEN(name) <= VAR_SHORT_LEN) {
- v = &fc->fixvar[fixvar_idx++].var;
- v->di_flags = DI_FLAGS_RO | DI_FLAGS_FIX;
- } else {
- v = (dictitem_T *)alloc((unsigned)(sizeof(dictitem_T)
- + STRLEN(name)));
- if (v == NULL)
- break;
- v->di_flags = DI_FLAGS_RO;
- }
- STRCPY(v->di_key, name);
- hash_add(&fc->l_avars.dv_hashtab, DI2HIKEY(v));
-
- /* Note: the values are copied directly to avoid alloc/free.
- * "argvars" must have VAR_FIXED for v_lock. */
- v->di_tv = argvars[i];
- v->di_tv.v_lock = VAR_FIXED;
-
- if (ai >= 0 && ai < MAX_FUNC_ARGS) {
- list_append(&fc->l_varlist, &fc->l_listitems[ai]);
- fc->l_listitems[ai].li_tv = argvars[i];
- fc->l_listitems[ai].li_tv.v_lock = VAR_FIXED;
- }
- }
-
- /* Don't redraw while executing the function. */
- ++RedrawingDisabled;
- save_sourcing_name = sourcing_name;
- save_sourcing_lnum = sourcing_lnum;
- sourcing_lnum = 1;
- sourcing_name = alloc((unsigned)((save_sourcing_name == NULL ? 0
- : STRLEN(save_sourcing_name)) +
- STRLEN(fp->uf_name) + 13));
- if (sourcing_name != NULL) {
- if (save_sourcing_name != NULL
- && STRNCMP(save_sourcing_name, "function ", 9) == 0)
- sprintf((char *)sourcing_name, "%s..", save_sourcing_name);
- else
- STRCPY(sourcing_name, "function ");
- cat_func_name(sourcing_name + STRLEN(sourcing_name), fp);
-
- if (p_verbose >= 12) {
- ++no_wait_return;
- verbose_enter_scroll();
-
- smsg((char_u *)_("calling %s"), sourcing_name);
- if (p_verbose >= 14) {
- char_u buf[MSG_BUF_LEN];
- char_u numbuf2[NUMBUFLEN];
- char_u *tofree;
- char_u *s;
-
- msg_puts((char_u *)"(");
- for (i = 0; i < argcount; ++i) {
- if (i > 0)
- msg_puts((char_u *)", ");
- if (argvars[i].v_type == VAR_NUMBER)
- msg_outnum((long)argvars[i].vval.v_number);
- else {
- s = tv2string(&argvars[i], &tofree, numbuf2, 0);
- if (s != NULL) {
- if (vim_strsize(s) > MSG_BUF_CLEN) {
- trunc_string(s, buf, MSG_BUF_CLEN, MSG_BUF_LEN);
- s = buf;
- }
- msg_puts(s);
- free(tofree);
- }
- }
- }
- msg_puts((char_u *)")");
- }
- msg_puts((char_u *)"\n"); /* don't overwrite this either */
-
- verbose_leave_scroll();
- --no_wait_return;
- }
- }
- if (do_profiling == PROF_YES) {
- if (!fp->uf_profiling && has_profiling(FALSE, fp->uf_name, NULL))
- func_do_profile(fp);
- if (fp->uf_profiling
- || (fc->caller != NULL && fc->caller->func->uf_profiling)) {
- ++fp->uf_tm_count;
- profile_start(&call_start);
- profile_zero(&fp->uf_tm_children);
- }
- script_prof_save(&wait_start);
- }
-
- save_current_SID = current_SID;
- current_SID = fp->uf_script_ID;
- save_did_emsg = did_emsg;
- did_emsg = FALSE;
-
- /* call do_cmdline() to execute the lines */
- do_cmdline(NULL, get_func_line, (void *)fc,
- DOCMD_NOWAIT|DOCMD_VERBOSE|DOCMD_REPEAT);
-
- --RedrawingDisabled;
-
- /* when the function was aborted because of an error, return -1 */
- if ((did_emsg &&
- (fp->uf_flags & FC_ABORT)) || rettv->v_type == VAR_UNKNOWN) {
- clear_tv(rettv);
- rettv->v_type = VAR_NUMBER;
- rettv->vval.v_number = -1;
- }
-
- if (do_profiling == PROF_YES && (fp->uf_profiling
- || (fc->caller != NULL &&
- fc->caller->func->uf_profiling))) {
- profile_end(&call_start);
- profile_sub_wait(&wait_start, &call_start);
- profile_add(&fp->uf_tm_total, &call_start);
- profile_self(&fp->uf_tm_self, &call_start, &fp->uf_tm_children);
- if (fc->caller != NULL && fc->caller->func->uf_profiling) {
- profile_add(&fc->caller->func->uf_tm_children, &call_start);
- profile_add(&fc->caller->func->uf_tml_children, &call_start);
- }
- }
-
- /* when being verbose, mention the return value */
- if (p_verbose >= 12) {
- ++no_wait_return;
- verbose_enter_scroll();
-
- if (aborting())
- smsg((char_u *)_("%s aborted"), sourcing_name);
- else if (fc->rettv->v_type == VAR_NUMBER)
- smsg((char_u *)_("%s returning #%" PRId64 ""),
- sourcing_name, (int64_t)fc->rettv->vval.v_number);
- else {
- char_u buf[MSG_BUF_LEN];
- char_u numbuf2[NUMBUFLEN];
- char_u *tofree;
- char_u *s;
-
- /* The value may be very long. Skip the middle part, so that we
- * have some idea how it starts and ends. smsg() would always
- * truncate it at the end. */
- s = tv2string(fc->rettv, &tofree, numbuf2, 0);
- if (s != NULL) {
- if (vim_strsize(s) > MSG_BUF_CLEN) {
- trunc_string(s, buf, MSG_BUF_CLEN, MSG_BUF_LEN);
- s = buf;
- }
- smsg((char_u *)_("%s returning %s"), sourcing_name, s);
- free(tofree);
- }
- }
- msg_puts((char_u *)"\n"); /* don't overwrite this either */
-
- verbose_leave_scroll();
- --no_wait_return;
- }
-
- free(sourcing_name);
- sourcing_name = save_sourcing_name;
- sourcing_lnum = save_sourcing_lnum;
- current_SID = save_current_SID;
- if (do_profiling == PROF_YES)
- script_prof_restore(&wait_start);
-
- if (p_verbose >= 12 && sourcing_name != NULL) {
- ++no_wait_return;
- verbose_enter_scroll();
-
- smsg((char_u *)_("continuing in %s"), sourcing_name);
- msg_puts((char_u *)"\n"); /* don't overwrite this either */
-
- verbose_leave_scroll();
- --no_wait_return;
- }
-
- did_emsg |= save_did_emsg;
- current_funccal = fc->caller;
- --depth;
-
- /* If the a:000 list and the l: and a: dicts are not referenced we can
- * free the funccall_T and what's in it. */
- if (fc->l_varlist.lv_refcount == DO_NOT_FREE_CNT
- && fc->l_vars.dv_refcount == DO_NOT_FREE_CNT
- && fc->l_avars.dv_refcount == DO_NOT_FREE_CNT) {
- free_funccal(fc, FALSE);
- } else {
- hashitem_T *hi;
- listitem_T *li;
- int todo;
-
- /* "fc" is still in use. This can happen when returning "a:000" or
- * assigning "l:" to a global variable.
- * Link "fc" in the list for garbage collection later. */
- fc->caller = previous_funccal;
- previous_funccal = fc;
-
- /* Make a copy of the a: variables, since we didn't do that above. */
- todo = (int)fc->l_avars.dv_hashtab.ht_used;
- for (hi = fc->l_avars.dv_hashtab.ht_array; todo > 0; ++hi) {
- if (!HASHITEM_EMPTY(hi)) {
- --todo;
- v = HI2DI(hi);
- copy_tv(&v->di_tv, &v->di_tv);
- }
- }
-
- /* Make a copy of the a:000 items, since we didn't do that above. */
- for (li = fc->l_varlist.lv_first; li != NULL; li = li->li_next)
- copy_tv(&li->li_tv, &li->li_tv);
- }
-}
-
-/*
- * Return TRUE if items in "fc" do not have "copyID". That means they are not
- * referenced from anywhere that is in use.
- */
-static int can_free_funccal(funccall_T *fc, int copyID)
-{
- return fc->l_varlist.lv_copyID != copyID
- && fc->l_vars.dv_copyID != copyID
- && fc->l_avars.dv_copyID != copyID;
-}
-
-/*
- * Free "fc" and what it contains.
- */
-static void
-free_funccal (
- funccall_T *fc,
- int free_val /* a: vars were allocated */
-)
-{
- listitem_T *li;
-
- /* The a: variables typevals may not have been allocated, only free the
- * allocated variables. */
- vars_clear_ext(&fc->l_avars.dv_hashtab, free_val);
-
- /* free all l: variables */
- vars_clear(&fc->l_vars.dv_hashtab);
-
- /* Free the a:000 variables if they were allocated. */
- if (free_val)
- for (li = fc->l_varlist.lv_first; li != NULL; li = li->li_next)
- clear_tv(&li->li_tv);
-
- free(fc);
-}
-
-/*
- * Add a number variable "name" to dict "dp" with value "nr".
- */
-static void add_nr_var(dict_T *dp, dictitem_T *v, char *name, varnumber_T nr)
-{
- STRCPY(v->di_key, name);
- v->di_flags = DI_FLAGS_RO | DI_FLAGS_FIX;
- hash_add(&dp->dv_hashtab, DI2HIKEY(v));
- v->di_tv.v_type = VAR_NUMBER;
- v->di_tv.v_lock = VAR_FIXED;
- v->di_tv.vval.v_number = nr;
-}
-
-/*
- * ":return [expr]"
- */
-void ex_return(exarg_T *eap)
-{
- char_u *arg = eap->arg;
- typval_T rettv;
- int returning = FALSE;
-
- if (current_funccal == NULL) {
- EMSG(_("E133: :return not inside a function"));
- return;
- }
-
- if (eap->skip)
- ++emsg_skip;
-
- eap->nextcmd = NULL;
- if ((*arg != NUL && *arg != '|' && *arg != '\n')
- && eval0(arg, &rettv, &eap->nextcmd, !eap->skip) != FAIL) {
- if (!eap->skip)
- returning = do_return(eap, FALSE, TRUE, &rettv);
- else
- clear_tv(&rettv);
- }
- /* It's safer to return also on error. */
- else if (!eap->skip) {
- /*
- * Return unless the expression evaluation has been cancelled due to an
- * aborting error, an interrupt, or an exception.
- */
- if (!aborting())
- returning = do_return(eap, FALSE, TRUE, NULL);
- }
-
- /* When skipping or the return gets pending, advance to the next command
- * in this line (!returning). Otherwise, ignore the rest of the line.
- * Following lines will be ignored by get_func_line(). */
- if (returning)
- eap->nextcmd = NULL;
- else if (eap->nextcmd == NULL) /* no argument */
- eap->nextcmd = check_nextcmd(arg);
-
- if (eap->skip)
- --emsg_skip;
-}
-
-/*
- * Return from a function. Possibly makes the return pending. Also called
- * for a pending return at the ":endtry" or after returning from an extra
- * do_cmdline(). "reanimate" is used in the latter case. "is_cmd" is set
- * when called due to a ":return" command. "rettv" may point to a typval_T
- * with the return rettv. Returns TRUE when the return can be carried out,
- * FALSE when the return gets pending.
- */
-int do_return(exarg_T *eap, int reanimate, int is_cmd, void *rettv)
-{
- int idx;
- struct condstack *cstack = eap->cstack;
-
- if (reanimate)
- /* Undo the return. */
- current_funccal->returned = FALSE;
-
- /*
- * Cleanup (and inactivate) conditionals, but stop when a try conditional
- * not in its finally clause (which then is to be executed next) is found.
- * In this case, make the ":return" pending for execution at the ":endtry".
- * Otherwise, return normally.
- */
- idx = cleanup_conditionals(eap->cstack, 0, TRUE);
- if (idx >= 0) {
- cstack->cs_pending[idx] = CSTP_RETURN;
-
- if (!is_cmd && !reanimate)
- /* A pending return again gets pending. "rettv" points to an
- * allocated variable with the rettv of the original ":return"'s
- * argument if present or is NULL else. */
- cstack->cs_rettv[idx] = rettv;
- else {
- /* When undoing a return in order to make it pending, get the stored
- * return rettv. */
- if (reanimate)
- rettv = current_funccal->rettv;
-
- if (rettv != NULL) {
- /* Store the value of the pending return. */
- cstack->cs_rettv[idx] = xcalloc(1, sizeof(typval_T));
- *(typval_T *)cstack->cs_rettv[idx] = *(typval_T *)rettv;
- } else
- cstack->cs_rettv[idx] = NULL;
-
- if (reanimate) {
- /* The pending return value could be overwritten by a ":return"
- * without argument in a finally clause; reset the default
- * return value. */
- current_funccal->rettv->v_type = VAR_NUMBER;
- current_funccal->rettv->vval.v_number = 0;
- }
- }
- report_make_pending(CSTP_RETURN, rettv);
- } else {
- current_funccal->returned = TRUE;
-
- /* If the return is carried out now, store the return value. For
- * a return immediately after reanimation, the value is already
- * there. */
- if (!reanimate && rettv != NULL) {
- clear_tv(current_funccal->rettv);
- *current_funccal->rettv = *(typval_T *)rettv;
- if (!is_cmd)
- free(rettv);
- }
- }
-
- return idx < 0;
-}
-
-/*
- * Free the variable with a pending return value.
- */
-void discard_pending_return(void *rettv)
-{
- free_tv((typval_T *)rettv);
-}
-
-/*
- * Generate a return command for producing the value of "rettv". The result
- * is an allocated string. Used by report_pending() for verbose messages.
- */
-char_u *get_return_cmd(void *rettv)
-{
- char_u *s = NULL;
- char_u *tofree = NULL;
- char_u numbuf[NUMBUFLEN];
-
- if (rettv != NULL)
- s = echo_string((typval_T *)rettv, &tofree, numbuf, 0);
- if (s == NULL)
- s = (char_u *)"";
-
- STRCPY(IObuff, ":return ");
- STRNCPY(IObuff + 8, s, IOSIZE - 8);
- if (STRLEN(s) + 8 >= IOSIZE)
- STRCPY(IObuff + IOSIZE - 4, "...");
- free(tofree);
- return vim_strsave(IObuff);
-}
-
-/*
- * Get next function line.
- * Called by do_cmdline() to get the next line.
- * Returns allocated string, or NULL for end of function.
- */
-char_u *get_func_line(int c, void *cookie, int indent)
-{
- funccall_T *fcp = (funccall_T *)cookie;
- ufunc_T *fp = fcp->func;
- char_u *retval;
- garray_T *gap; /* growarray with function lines */
-
- /* If breakpoints have been added/deleted need to check for it. */
- if (fcp->dbg_tick != debug_tick) {
- fcp->breakpoint = dbg_find_breakpoint(FALSE, fp->uf_name,
- sourcing_lnum);
- fcp->dbg_tick = debug_tick;
- }
- if (do_profiling == PROF_YES)
- func_line_end(cookie);
-
- gap = &fp->uf_lines;
- if (((fp->uf_flags & FC_ABORT) && did_emsg && !aborted_in_try())
- || fcp->returned)
- retval = NULL;
- else {
- /* Skip NULL lines (continuation lines). */
- while (fcp->linenr < gap->ga_len
- && ((char_u **)(gap->ga_data))[fcp->linenr] == NULL)
- ++fcp->linenr;
- if (fcp->linenr >= gap->ga_len)
- retval = NULL;
- else {
- retval = vim_strsave(((char_u **)(gap->ga_data))[fcp->linenr++]);
- sourcing_lnum = fcp->linenr;
- if (do_profiling == PROF_YES)
- func_line_start(cookie);
- }
- }
-
- /* Did we encounter a breakpoint? */
- if (fcp->breakpoint != 0 && fcp->breakpoint <= sourcing_lnum) {
- dbg_breakpoint(fp->uf_name, sourcing_lnum);
- /* Find next breakpoint. */
- fcp->breakpoint = dbg_find_breakpoint(FALSE, fp->uf_name,
- sourcing_lnum);
- fcp->dbg_tick = debug_tick;
- }
-
- return retval;
-}
-
-/*
- * Called when starting to read a function line.
- * "sourcing_lnum" must be correct!
- * When skipping lines it may not actually be executed, but we won't find out
- * until later and we need to store the time now.
- */
-void func_line_start(void *cookie)
-{
- funccall_T *fcp = (funccall_T *)cookie;
- ufunc_T *fp = fcp->func;
-
- if (fp->uf_profiling && sourcing_lnum >= 1
- && sourcing_lnum <= fp->uf_lines.ga_len) {
- fp->uf_tml_idx = sourcing_lnum - 1;
- /* Skip continuation lines. */
- while (fp->uf_tml_idx > 0 && FUNCLINE(fp, fp->uf_tml_idx) == NULL)
- --fp->uf_tml_idx;
- fp->uf_tml_execed = FALSE;
- profile_start(&fp->uf_tml_start);
- profile_zero(&fp->uf_tml_children);
- profile_get_wait(&fp->uf_tml_wait);
- }
-}
-
-/*
- * Called when actually executing a function line.
- */
-void func_line_exec(void *cookie)
-{
- funccall_T *fcp = (funccall_T *)cookie;
- ufunc_T *fp = fcp->func;
-
- if (fp->uf_profiling && fp->uf_tml_idx >= 0)
- fp->uf_tml_execed = TRUE;
-}
-
-/*
- * Called when done with a function line.
- */
-void func_line_end(void *cookie)
-{
- funccall_T *fcp = (funccall_T *)cookie;
- ufunc_T *fp = fcp->func;
-
- if (fp->uf_profiling && fp->uf_tml_idx >= 0) {
- if (fp->uf_tml_execed) {
- ++fp->uf_tml_count[fp->uf_tml_idx];
- profile_end(&fp->uf_tml_start);
- profile_sub_wait(&fp->uf_tml_wait, &fp->uf_tml_start);
- profile_add(&fp->uf_tml_total[fp->uf_tml_idx], &fp->uf_tml_start);
- profile_self(&fp->uf_tml_self[fp->uf_tml_idx], &fp->uf_tml_start,
- &fp->uf_tml_children);
- }
- fp->uf_tml_idx = -1;
- }
-}
-
-/*
- * Return TRUE if the currently active function should be ended, because a
- * return was encountered or an error occurred. Used inside a ":while".
- */
-int func_has_ended(void *cookie)
-{
- funccall_T *fcp = (funccall_T *)cookie;
-
- /* Ignore the "abort" flag if the abortion behavior has been changed due to
- * an error inside a try conditional. */
- return ((fcp->func->uf_flags & FC_ABORT) && did_emsg && !aborted_in_try())
- || fcp->returned;
-}
-
-/*
- * return TRUE if cookie indicates a function which "abort"s on errors.
- */
-int func_has_abort(void *cookie)
-{
- return ((funccall_T *)cookie)->func->uf_flags & FC_ABORT;
-}
-
-typedef enum {
- VAR_FLAVOUR_DEFAULT, /* doesn't start with uppercase */
- VAR_FLAVOUR_SESSION, /* starts with uppercase, some lower */
- VAR_FLAVOUR_VIMINFO /* all uppercase */
-} var_flavour_T;
-
-static var_flavour_T var_flavour(char_u *varname);
-
-static var_flavour_T var_flavour(char_u *varname)
-{
- char_u *p = varname;
-
- if (ASCII_ISUPPER(*p)) {
- while (*(++p))
- if (ASCII_ISLOWER(*p))
- return VAR_FLAVOUR_SESSION;
- return VAR_FLAVOUR_VIMINFO;
- } else
- return VAR_FLAVOUR_DEFAULT;
-}
-
-/*
- * Restore global vars that start with a capital from the viminfo file
- */
-int read_viminfo_varlist(vir_T *virp, int writing)
-{
- char_u *tab;
- int type = VAR_NUMBER;
- typval_T tv;
-
- if (!writing && (find_viminfo_parameter('!') != NULL)) {
- tab = vim_strchr(virp->vir_line + 1, '\t');
- if (tab != NULL) {
- *tab++ = NUL; /* isolate the variable name */
- switch (*tab) {
- case 'S': type = VAR_STRING; break;
- case 'F': type = VAR_FLOAT; break;
- case 'D': type = VAR_DICT; break;
- case 'L': type = VAR_LIST; break;
- }
-
- tab = vim_strchr(tab, '\t');
- if (tab != NULL) {
- tv.v_type = type;
- if (type == VAR_STRING || type == VAR_DICT || type == VAR_LIST)
- tv.vval.v_string = viminfo_readstring(virp,
- (int)(tab - virp->vir_line + 1), TRUE);
- else if (type == VAR_FLOAT)
- (void)string2float(tab + 1, &tv.vval.v_float);
- else
- tv.vval.v_number = atol((char *)tab + 1);
- if (type == VAR_DICT || type == VAR_LIST) {
- typval_T *etv = eval_expr(tv.vval.v_string, NULL);
-
- if (etv == NULL)
- /* Failed to parse back the dict or list, use it as a
- * string. */
- tv.v_type = VAR_STRING;
- else {
- free(tv.vval.v_string);
- tv = *etv;
- free(etv);
- }
- }
-
- set_var(virp->vir_line + 1, &tv, FALSE);
-
- if (tv.v_type == VAR_STRING)
- free(tv.vval.v_string);
- else if (tv.v_type == VAR_DICT || tv.v_type == VAR_LIST)
- clear_tv(&tv);
- }
- }
- }
-
- return viminfo_readline(virp);
-}
-
-/*
- * Write global vars that start with a capital to the viminfo file
- */
-void write_viminfo_varlist(FILE *fp)
-{
- hashitem_T *hi;
- dictitem_T *this_var;
- int todo;
- char *s;
- char_u *p;
- char_u *tofree;
- char_u numbuf[NUMBUFLEN];
-
- if (find_viminfo_parameter('!') == NULL)
- return;
-
- fputs(_("\n# global variables:\n"), fp);
-
- todo = (int)globvarht.ht_used;
- for (hi = globvarht.ht_array; todo > 0; ++hi) {
- if (!HASHITEM_EMPTY(hi)) {
- --todo;
- this_var = HI2DI(hi);
- if (var_flavour(this_var->di_key) == VAR_FLAVOUR_VIMINFO) {
- switch (this_var->di_tv.v_type) {
- case VAR_STRING: s = "STR"; break;
- case VAR_NUMBER: s = "NUM"; break;
- case VAR_FLOAT: s = "FLO"; break;
- case VAR_DICT: s = "DIC"; break;
- case VAR_LIST: s = "LIS"; break;
- default: continue;
- }
- fprintf(fp, "!%s\t%s\t", this_var->di_key, s);
- p = echo_string(&this_var->di_tv, &tofree, numbuf, 0);
- if (p != NULL)
- viminfo_writestring(fp, p);
- free(tofree);
- }
- }
- }
-}
-
-int store_session_globals(FILE *fd)
-{
- hashitem_T *hi;
- dictitem_T *this_var;
- int todo;
- char_u *p, *t;
-
- todo = (int)globvarht.ht_used;
- for (hi = globvarht.ht_array; todo > 0; ++hi) {
- if (!HASHITEM_EMPTY(hi)) {
- --todo;
- this_var = HI2DI(hi);
- if ((this_var->di_tv.v_type == VAR_NUMBER
- || this_var->di_tv.v_type == VAR_STRING)
- && var_flavour(this_var->di_key) == VAR_FLAVOUR_SESSION) {
- /* Escape special characters with a backslash. Turn a LF and
- * CR into \n and \r. */
- p = vim_strsave_escaped(get_tv_string(&this_var->di_tv),
- (char_u *)"\\\"\n\r");
- if (p == NULL) /* out of memory */
- break;
- for (t = p; *t != NUL; ++t)
- if (*t == '\n')
- *t = 'n';
- else if (*t == '\r')
- *t = 'r';
- if ((fprintf(fd, "let %s = %c%s%c",
- this_var->di_key,
- (this_var->di_tv.v_type == VAR_STRING) ? '"'
- : ' ',
- p,
- (this_var->di_tv.v_type == VAR_STRING) ? '"'
- : ' ') < 0)
- || put_eol(fd) == FAIL) {
- free(p);
- return FAIL;
- }
- free(p);
- } else if (this_var->di_tv.v_type == VAR_FLOAT
- && var_flavour(this_var->di_key) == VAR_FLAVOUR_SESSION) {
- float_T f = this_var->di_tv.vval.v_float;
- int sign = ' ';
-
- if (f < 0) {
- f = -f;
- sign = '-';
- }
- if ((fprintf(fd, "let %s = %c%f",
- this_var->di_key, sign, f) < 0)
- || put_eol(fd) == FAIL)
- return FAIL;
- }
- }
- }
- return OK;
-}
-
-/*
- * Display script name where an item was last set.
- * Should only be invoked when 'verbose' is non-zero.
- */
-void last_set_msg(scid_T scriptID)
-{
- char_u *p;
-
- if (scriptID != 0) {
- p = home_replace_save(NULL, get_scriptname(scriptID));
- if (p != NULL) {
- verbose_enter();
- MSG_PUTS(_("\n\tLast set from "));
- MSG_PUTS(p);
- free(p);
- verbose_leave();
- }
- }
-}
-
-/*
- * List v:oldfiles in a nice way.
- */
-void ex_oldfiles(exarg_T *eap)
-{
- list_T *l = vimvars[VV_OLDFILES].vv_list;
- listitem_T *li;
- int nr = 0;
-
- if (l == NULL)
- msg((char_u *)_("No old files"));
- else {
- msg_start();
- msg_scroll = TRUE;
- for (li = l->lv_first; li != NULL && !got_int; li = li->li_next) {
- msg_outnum((long)++nr);
- MSG_PUTS(": ");
- msg_outtrans(get_tv_string(&li->li_tv));
- msg_putchar('\n');
- out_flush(); /* output one line at a time */
- ui_breakcheck();
- }
- /* Assume "got_int" was set to truncate the listing. */
- got_int = FALSE;
-
- }
-}
-
-
-
-
-
-/*
- * Adjust a filename, according to a string of modifiers.
- * *fnamep must be NUL terminated when called. When returning, the length is
- * determined by *fnamelen.
- * Returns VALID_ flags or -1 for failure.
- * When there is an error, *fnamep is set to NULL.
- */
-int
-modify_fname (
- char_u *src, /* string with modifiers */
- int *usedlen, /* characters after src that are used */
- char_u **fnamep, /* file name so far */
- char_u **bufp, /* buffer for allocated file name or NULL */
- int *fnamelen /* length of fnamep */
-)
-{
- int valid = 0;
- char_u *tail;
- char_u *s, *p, *pbuf;
- char_u dirname[MAXPATHL];
- int c;
- int has_fullname = 0;
-
-repeat:
- /* ":p" - full path/file_name */
- if (src[*usedlen] == ':' && src[*usedlen + 1] == 'p') {
- has_fullname = 1;
-
- valid |= VALID_PATH;
- *usedlen += 2;
-
- /* Expand "~/path" for all systems and "~user/path" for Unix */
- if ((*fnamep)[0] == '~'
-#if !defined(UNIX)
- && ((*fnamep)[1] == '/'
-# ifdef BACKSLASH_IN_FILENAME
- || (*fnamep)[1] == '\\'
-# endif
- || (*fnamep)[1] == NUL)
-
-#endif
- ) {
- *fnamep = expand_env_save(*fnamep);
- free(*bufp); /* free any allocated file name */
- *bufp = *fnamep;
- if (*fnamep == NULL)
- return -1;
- }
-
- /* When "/." or "/.." is used: force expansion to get rid of it. */
- for (p = *fnamep; *p != NUL; mb_ptr_adv(p)) {
- if (vim_ispathsep(*p)
- && p[1] == '.'
- && (p[2] == NUL
- || vim_ispathsep(p[2])
- || (p[2] == '.'
- && (p[3] == NUL || vim_ispathsep(p[3])))))
- break;
- }
-
- /* FullName_save() is slow, don't use it when not needed. */
- if (*p != NUL || !vim_isAbsName(*fnamep)) {
- *fnamep = FullName_save(*fnamep, *p != NUL);
- free(*bufp); /* free any allocated file name */
- *bufp = *fnamep;
- if (*fnamep == NULL)
- return -1;
- }
-
- /* Append a path separator to a directory. */
- if (os_isdir(*fnamep)) {
- /* Make room for one or two extra characters. */
- *fnamep = vim_strnsave(*fnamep, (int)STRLEN(*fnamep) + 2);
- free(*bufp); /* free any allocated file name */
- *bufp = *fnamep;
- if (*fnamep == NULL)
- return -1;
- add_pathsep(*fnamep);
- }
- }
-
- /* ":." - path relative to the current directory */
- /* ":~" - path relative to the home directory */
- /* ":8" - shortname path - postponed till after */
- while (src[*usedlen] == ':'
- && ((c = src[*usedlen + 1]) == '.' || c == '~' || c == '8')) {
- *usedlen += 2;
- if (c == '8') {
- continue;
- }
- pbuf = NULL;
- /* Need full path first (use expand_env() to remove a "~/") */
- if (!has_fullname) {
- if (c == '.' && **fnamep == '~')
- p = pbuf = expand_env_save(*fnamep);
- else
- p = pbuf = FullName_save(*fnamep, FALSE);
- } else
- p = *fnamep;
-
- has_fullname = 0;
-
- if (p != NULL) {
- if (c == '.') {
- os_dirname(dirname, MAXPATHL);
- s = path_shorten_fname(p, dirname);
- if (s != NULL) {
- *fnamep = s;
- if (pbuf != NULL) {
- free(*bufp); /* free any allocated file name */
- *bufp = pbuf;
- pbuf = NULL;
- }
- }
- } else {
- home_replace(NULL, p, dirname, MAXPATHL, TRUE);
- /* Only replace it when it starts with '~' */
- if (*dirname == '~') {
- s = vim_strsave(dirname);
- if (s != NULL) {
- *fnamep = s;
- free(*bufp);
- *bufp = s;
- }
- }
- }
- free(pbuf);
- }
- }
-
- tail = path_tail(*fnamep);
- *fnamelen = (int)STRLEN(*fnamep);
-
- /* ":h" - head, remove "/file_name", can be repeated */
- /* Don't remove the first "/" or "c:\" */
- while (src[*usedlen] == ':' && src[*usedlen + 1] == 'h') {
- valid |= VALID_HEAD;
- *usedlen += 2;
- s = get_past_head(*fnamep);
- while (tail > s && after_pathsep(s, tail))
- mb_ptr_back(*fnamep, tail);
- *fnamelen = (int)(tail - *fnamep);
- if (*fnamelen == 0) {
- /* Result is empty. Turn it into "." to make ":cd %:h" work. */
- p = vim_strsave((char_u *)".");
- if (p == NULL)
- return -1;
- free(*bufp);
- *bufp = *fnamep = tail = p;
- *fnamelen = 1;
- } else {
- while (tail > s && !after_pathsep(s, tail))
- mb_ptr_back(*fnamep, tail);
- }
- }
-
- /* ":8" - shortname */
- if (src[*usedlen] == ':' && src[*usedlen + 1] == '8') {
- *usedlen += 2;
- }
-
-
- /* ":t" - tail, just the basename */
- if (src[*usedlen] == ':' && src[*usedlen + 1] == 't') {
- *usedlen += 2;
- *fnamelen -= (int)(tail - *fnamep);
- *fnamep = tail;
- }
-
- /* ":e" - extension, can be repeated */
- /* ":r" - root, without extension, can be repeated */
- while (src[*usedlen] == ':'
- && (src[*usedlen + 1] == 'e' || src[*usedlen + 1] == 'r')) {
- /* find a '.' in the tail:
- * - for second :e: before the current fname
- * - otherwise: The last '.'
- */
- if (src[*usedlen + 1] == 'e' && *fnamep > tail)
- s = *fnamep - 2;
- else
- s = *fnamep + *fnamelen - 1;
- for (; s > tail; --s)
- if (s[0] == '.')
- break;
- if (src[*usedlen + 1] == 'e') { /* :e */
- if (s > tail) {
- *fnamelen += (int)(*fnamep - (s + 1));
- *fnamep = s + 1;
- } else if (*fnamep <= tail)
- *fnamelen = 0;
- } else { /* :r */
- if (s > tail) /* remove one extension */
- *fnamelen = (int)(s - *fnamep);
- }
- *usedlen += 2;
- }
-
- /* ":s?pat?foo?" - substitute */
- /* ":gs?pat?foo?" - global substitute */
- if (src[*usedlen] == ':'
- && (src[*usedlen + 1] == 's'
- || (src[*usedlen + 1] == 'g' && src[*usedlen + 2] == 's'))) {
- char_u *str;
- char_u *pat;
- char_u *sub;
- int sep;
- char_u *flags;
- int didit = FALSE;
-
- flags = (char_u *)"";
- s = src + *usedlen + 2;
- if (src[*usedlen + 1] == 'g') {
- flags = (char_u *)"g";
- ++s;
- }
-
- sep = *s++;
- if (sep) {
- /* find end of pattern */
- p = vim_strchr(s, sep);
- if (p != NULL) {
- pat = vim_strnsave(s, (int)(p - s));
- if (pat != NULL) {
- s = p + 1;
- /* find end of substitution */
- p = vim_strchr(s, sep);
- if (p != NULL) {
- sub = vim_strnsave(s, (int)(p - s));
- str = vim_strnsave(*fnamep, *fnamelen);
- if (sub != NULL && str != NULL) {
- *usedlen = (int)(p + 1 - src);
- s = do_string_sub(str, pat, sub, flags);
- if (s != NULL) {
- *fnamep = s;
- *fnamelen = (int)STRLEN(s);
- free(*bufp);
- *bufp = s;
- didit = TRUE;
- }
- }
- free(sub);
- free(str);
- }
- free(pat);
- }
- }
- /* after using ":s", repeat all the modifiers */
- if (didit)
- goto repeat;
- }
- }
-
- if (src[*usedlen] == ':' && src[*usedlen + 1] == 'S') {
- p = vim_strsave_shellescape(*fnamep, false, false);
- free(*bufp);
- *bufp = *fnamep = p;
- *fnamelen = (int)STRLEN(p);
- *usedlen += 2;
- }
-
- return valid;
-}
-
-/*
- * Perform a substitution on "str" with pattern "pat" and substitute "sub".
- * "flags" can be "g" to do a global substitute.
- * Returns an allocated string, NULL for error.
- */
-char_u *do_string_sub(char_u *str, char_u *pat, char_u *sub, char_u *flags)
-{
- int sublen;
- regmatch_T regmatch;
- int i;
- int do_all;
- char_u *tail;
- garray_T ga;
- char_u *ret;
- char_u *save_cpo;
- char_u *zero_width = NULL;
-
- /* Make 'cpoptions' empty, so that the 'l' flag doesn't work here */
- save_cpo = p_cpo;
- p_cpo = empty_option;
-
- ga_init(&ga, 1, 200);
-
- do_all = (flags[0] == 'g');
-
- regmatch.rm_ic = p_ic;
- regmatch.regprog = vim_regcomp(pat, RE_MAGIC + RE_STRING);
- if (regmatch.regprog != NULL) {
- tail = str;
- while (vim_regexec_nl(&regmatch, str, (colnr_T)(tail - str))) {
- /* Skip empty match except for first match. */
- if (regmatch.startp[0] == regmatch.endp[0]) {
- if (zero_width == regmatch.startp[0]) {
- /* avoid getting stuck on a match with an empty string */
- *((char_u *)ga.ga_data + ga.ga_len) = *tail++;
- ++ga.ga_len;
- continue;
- }
- zero_width = regmatch.startp[0];
- }
-
- /*
- * Get some space for a temporary buffer to do the substitution
- * into. It will contain:
- * - The text up to where the match is.
- * - The substituted text.
- * - The text after the match.
- */
- sublen = vim_regsub(&regmatch, sub, tail, FALSE, TRUE, FALSE);
- ga_grow(&ga, (int)(STRLEN(tail) + sublen -
- (regmatch.endp[0] - regmatch.startp[0])));
-
- /* copy the text up to where the match is */
- i = (int)(regmatch.startp[0] - tail);
- memmove((char_u *)ga.ga_data + ga.ga_len, tail, (size_t)i);
- /* add the substituted text */
- (void)vim_regsub(&regmatch, sub, (char_u *)ga.ga_data
- + ga.ga_len + i, TRUE, TRUE, FALSE);
- ga.ga_len += i + sublen - 1;
- tail = regmatch.endp[0];
- if (*tail == NUL)
- break;
- if (!do_all)
- break;
- }
-
- if (ga.ga_data != NULL)
- STRCPY((char *)ga.ga_data + ga.ga_len, tail);
-
- vim_regfree(regmatch.regprog);
- }
-
- ret = vim_strsave(ga.ga_data == NULL ? str : (char_u *)ga.ga_data);
- ga_clear(&ga);
- if (p_cpo == empty_option)
- p_cpo = save_cpo;
- else
- /* Darn, evaluating {sub} expression changed the value. */
- free_string_option(save_cpo);
-
- return ret;
-}
-
-static void on_job_stdout(RStream *rstream, void *data, bool eof)
-{
- if (!eof) {
- on_job_data(rstream, data, eof, "stdout");
- }
-}
-
-static void on_job_stderr(RStream *rstream, void *data, bool eof)
-{
- if (!eof) {
- on_job_data(rstream, data, eof, "stderr");
- }
-}
-
-static void on_job_exit(Job *job, void *data)
-{
- apply_job_autocmds(job, data, "exit", NULL);
-}
-
-static void on_job_data(RStream *rstream, void *data, bool eof, char *type)
-{
- Job *job = data;
- uint32_t read_count = rstream_available(rstream);
- char *str = xmalloc(read_count + 1);
-
- rstream_read(rstream, str, read_count);
- str[read_count] = NUL;
- apply_job_autocmds(job, job_data(job), type, str);
-}
-
-static void apply_job_autocmds(Job *job, char *name, char *type, char *str)
-{
- list_T *list;
-
- // Create the list which will be set to v:job_data
- list = list_alloc();
- list_append_number(list, job_id(job));
- list_append_string(list, (uint8_t *)type, -1);
-
- if (str) {
- listitem_T *str_slot = listitem_alloc();
- str_slot->li_tv.v_type = VAR_STRING;
- str_slot->li_tv.v_lock = 0;
- str_slot->li_tv.vval.v_string = (uint8_t *)str;
- list_append(list, str_slot);
- }
-
- // Update v:job_data for the autocommands
- set_vim_var_list(VV_JOB_DATA, list);
- // Call JobActivity autocommands
- apply_autocmds(EVENT_JOBACTIVITY, (uint8_t *)name, NULL, TRUE, NULL);
-}
-
generated by cgit (git 2.34.1) at 2025-07-27 06:59:32 +0000