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Diffstat (limited to 'src/nvim/ex_docmd.c')
| -rw-r--r-- | src/nvim/ex_docmd.c | 9109 |
1 files changed, 9109 insertions, 0 deletions
diff --git a/src/nvim/ex_docmd.c b/src/nvim/ex_docmd.c new file mode 100644 index 0000000000..87ce252434 --- /dev/null +++ b/src/nvim/ex_docmd.c @@ -0,0 +1,9109 @@ +/* + * 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. + */ + +/* + * ex_docmd.c: functions for executing an Ex command line. + */ + +#include <string.h> + +#include "vim.h" +#include "ex_docmd.h" +#include "blowfish.h" +#include "buffer.h" +#include "charset.h" +#include "diff.h" +#include "digraph.h" +#include "edit.h" +#include "eval.h" +#include "ex_cmds.h" +#include "ex_cmds2.h" +#include "ex_eval.h" +#include "ex_getln.h" +#include "fileio.h" +#include "fold.h" +#include "getchar.h" +#include "hardcopy.h" +#include "if_cscope.h" +#include "main.h" +#include "mark.h" +#include "mbyte.h" +#include "memline.h" +#include "memory.h" +#include "menu.h" +#include "message.h" +#include "misc1.h" +#include "misc2.h" +#include "keymap.h" +#include "crypt.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 "quickfix.h" +#include "regexp.h" +#include "screen.h" +#include "search.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" + +static int quitmore = 0; +static int ex_pressedreturn = FALSE; + +typedef struct ucmd { + char_u *uc_name; /* The command name */ + long_u uc_argt; /* The argument type */ + char_u *uc_rep; /* The command's replacement string */ + long uc_def; /* The default value for a range/count */ + int uc_compl; /* completion type */ + scid_T uc_scriptID; /* SID where the command was defined */ + char_u *uc_compl_arg; /* completion argument if any */ +} ucmd_T; + +#define UC_BUFFER 1 /* -buffer: local to current buffer */ + +static garray_T ucmds = {0, 0, sizeof(ucmd_T), 4, NULL}; + +#define USER_CMD(i) (&((ucmd_T *)(ucmds.ga_data))[i]) +#define USER_CMD_GA(gap, i) (&((ucmd_T *)((gap)->ga_data))[i]) + +static void do_ucmd(exarg_T *eap); +static void ex_command(exarg_T *eap); +static void ex_delcommand(exarg_T *eap); +static char_u *get_user_command_name(int idx); + + +static char_u *do_one_cmd(char_u **, int, struct condstack *, + char_u *(*fgetline)(int, void *, int), + void *cookie); +static void append_command(char_u *cmd); +static char_u *find_command(exarg_T *eap, int *full); + +static void ex_abbreviate(exarg_T *eap); +static void ex_map(exarg_T *eap); +static void ex_unmap(exarg_T *eap); +static void ex_mapclear(exarg_T *eap); +static void ex_abclear(exarg_T *eap); +static void ex_autocmd(exarg_T *eap); +static void ex_doautocmd(exarg_T *eap); +static void ex_bunload(exarg_T *eap); +static void ex_buffer(exarg_T *eap); +static void ex_bmodified(exarg_T *eap); +static void ex_bnext(exarg_T *eap); +static void ex_bprevious(exarg_T *eap); +static void ex_brewind(exarg_T *eap); +static void ex_blast(exarg_T *eap); +static char_u *getargcmd(char_u **); +static char_u *skip_cmd_arg(char_u *p, int rembs); +static int getargopt(exarg_T *eap); + +static int check_more(int, int); +static linenr_T get_address(char_u **, int skip, int to_other_file); +static void get_flags(exarg_T *eap); +# define HAVE_EX_SCRIPT_NI +static void ex_script_ni(exarg_T *eap); +static char_u *invalid_range(exarg_T *eap); +static void correct_range(exarg_T *eap); +static char_u *replace_makeprg(exarg_T *eap, char_u *p, + char_u **cmdlinep); +static char_u *repl_cmdline(exarg_T *eap, char_u *src, int srclen, + char_u *repl, + char_u **cmdlinep); +static void ex_highlight(exarg_T *eap); +static void ex_colorscheme(exarg_T *eap); +static void ex_quit(exarg_T *eap); +static void ex_cquit(exarg_T *eap); +static void ex_quit_all(exarg_T *eap); +static void ex_close(exarg_T *eap); +static void ex_win_close(int forceit, win_T *win, tabpage_T *tp); +static void ex_only(exarg_T *eap); +static void ex_resize(exarg_T *eap); +static void ex_stag(exarg_T *eap); +static void ex_tabclose(exarg_T *eap); +static void ex_tabonly(exarg_T *eap); +static void ex_tabnext(exarg_T *eap); +static void ex_tabmove(exarg_T *eap); +static void ex_tabs(exarg_T *eap); +static void ex_pclose(exarg_T *eap); +static void ex_ptag(exarg_T *eap); +static void ex_pedit(exarg_T *eap); +static void ex_hide(exarg_T *eap); +static void ex_stop(exarg_T *eap); +static void ex_exit(exarg_T *eap); +static void ex_print(exarg_T *eap); +static void ex_goto(exarg_T *eap); +static void ex_preserve(exarg_T *eap); +static void ex_recover(exarg_T *eap); +static void ex_mode(exarg_T *eap); +static void ex_wrongmodifier(exarg_T *eap); +static void ex_find(exarg_T *eap); +static void ex_open(exarg_T *eap); +static void ex_edit(exarg_T *eap); +# define ex_drop ex_ni +# define ex_gui ex_nogui +static void ex_nogui(exarg_T *eap); +# define ex_tearoff ex_ni +# define ex_popup ex_ni +# define ex_simalt ex_ni +# define gui_mch_find_dialog ex_ni +# define gui_mch_replace_dialog ex_ni +# define ex_helpfind ex_ni +static void ex_swapname(exarg_T *eap); +static void ex_syncbind(exarg_T *eap); +static void ex_read(exarg_T *eap); +static void ex_pwd(exarg_T *eap); +static void ex_equal(exarg_T *eap); +static void ex_sleep(exarg_T *eap); +static void do_exmap(exarg_T *eap, int isabbrev); +static void ex_winsize(exarg_T *eap); +static void ex_wincmd(exarg_T *eap); +#if defined(FEAT_GUI) || defined(UNIX) || defined(MSWIN) +static void ex_winpos(exarg_T *eap); +#else +# define ex_winpos ex_ni +#endif +static void ex_operators(exarg_T *eap); +static void ex_put(exarg_T *eap); +static void ex_copymove(exarg_T *eap); +static void ex_submagic(exarg_T *eap); +static void ex_join(exarg_T *eap); +static void ex_at(exarg_T *eap); +static void ex_bang(exarg_T *eap); +static void ex_undo(exarg_T *eap); +static void ex_wundo(exarg_T *eap); +static void ex_rundo(exarg_T *eap); +static void ex_redo(exarg_T *eap); +static void ex_later(exarg_T *eap); +static void ex_redir(exarg_T *eap); +static void ex_redraw(exarg_T *eap); +static void ex_redrawstatus(exarg_T *eap); +static void close_redir(void); +static void ex_mkrc(exarg_T *eap); +static void ex_mark(exarg_T *eap); +static char_u *uc_fun_cmd(void); +static char_u *find_ucmd(exarg_T *eap, char_u *p, int *full, + expand_T *xp, + int *compl); +static void ex_normal(exarg_T *eap); +static void ex_startinsert(exarg_T *eap); +static void ex_stopinsert(exarg_T *eap); +static void ex_checkpath(exarg_T *eap); +static void ex_findpat(exarg_T *eap); +static void ex_psearch(exarg_T *eap); +static void ex_tag(exarg_T *eap); +static void ex_tag_cmd(exarg_T *eap, char_u *name); +static char_u *arg_all(void); +static int makeopens(FILE *fd, char_u *dirnow); +static int put_view(FILE *fd, win_T *wp, int add_edit, unsigned *flagp, + int current_arg_idx); +static void ex_loadview(exarg_T *eap); +static char_u *get_view_file(int c); +static int did_lcd; /* whether ":lcd" was produced for a session */ +static void ex_viminfo(exarg_T *eap); +static void ex_behave(exarg_T *eap); +static void ex_filetype(exarg_T *eap); +static void ex_setfiletype(exarg_T *eap); +static void ex_digraphs(exarg_T *eap); +static void ex_set(exarg_T *eap); +static void ex_nohlsearch(exarg_T *eap); +static void ex_match(exarg_T *eap); +static void ex_X(exarg_T *eap); +static void ex_fold(exarg_T *eap); +static void ex_foldopen(exarg_T *eap); +static void ex_folddo(exarg_T *eap); +#ifndef HAVE_WORKING_LIBINTL +# define ex_language ex_ni +#endif +# define ex_wsverb ex_ni +# define ex_nbclose ex_ni +# define ex_nbkey ex_ni +# define ex_nbstart ex_ni + + + + +/* + * Declare cmdnames[]. + */ +#define DO_DECLARE_EXCMD +#include "ex_cmds_defs.h" + +/* + * Table used to quickly search for a command, based on its first character. + */ +static cmdidx_T cmdidxs[27] = +{ + CMD_append, + CMD_buffer, + CMD_change, + CMD_delete, + CMD_edit, + CMD_file, + CMD_global, + CMD_help, + CMD_insert, + CMD_join, + CMD_k, + CMD_list, + CMD_move, + CMD_next, + CMD_open, + CMD_print, + CMD_quit, + CMD_read, + CMD_substitute, + CMD_t, + CMD_undo, + CMD_vglobal, + CMD_write, + CMD_xit, + CMD_yank, + CMD_z, + CMD_bang +}; + +static char_u dollar_command[2] = {'$', 0}; + + +/* Struct for storing a line inside a while/for loop */ +typedef struct { + char_u *line; /* command line */ + linenr_T lnum; /* sourcing_lnum of the line */ +} wcmd_T; + +/* + * Structure used to store info for line position in a while or for loop. + * This is required, because do_one_cmd() may invoke ex_function(), which + * reads more lines that may come from the while/for loop. + */ +struct loop_cookie { + garray_T *lines_gap; /* growarray with line info */ + int current_line; /* last read line from growarray */ + int repeating; /* TRUE when looping a second time */ + /* When "repeating" is FALSE use "getline" and "cookie" to get lines */ + char_u *(*getline)(int, void *, int); + void *cookie; +}; + +static char_u *get_loop_line(int c, void *cookie, int indent); +static void store_loop_line(garray_T *gap, char_u *line); +static void free_cmdlines(garray_T *gap); + +/* Struct to save a few things while debugging. Used in do_cmdline() only. */ +struct dbg_stuff { + int trylevel; + int force_abort; + except_T *caught_stack; + char_u *vv_exception; + char_u *vv_throwpoint; + int did_emsg; + int got_int; + int did_throw; + int need_rethrow; + int check_cstack; + except_T *current_exception; +}; + +static void save_dbg_stuff(struct dbg_stuff *dsp); +static void restore_dbg_stuff(struct dbg_stuff *dsp); + +static void save_dbg_stuff(struct dbg_stuff *dsp) +{ + dsp->trylevel = trylevel; trylevel = 0; + dsp->force_abort = force_abort; force_abort = FALSE; + dsp->caught_stack = caught_stack; caught_stack = NULL; + dsp->vv_exception = v_exception(NULL); + dsp->vv_throwpoint = v_throwpoint(NULL); + + /* Necessary for debugging an inactive ":catch", ":finally", ":endtry" */ + dsp->did_emsg = did_emsg; did_emsg = FALSE; + dsp->got_int = got_int; got_int = FALSE; + dsp->did_throw = did_throw; did_throw = FALSE; + dsp->need_rethrow = need_rethrow; need_rethrow = FALSE; + dsp->check_cstack = check_cstack; check_cstack = FALSE; + dsp->current_exception = current_exception; current_exception = NULL; +} + +static void restore_dbg_stuff(struct dbg_stuff *dsp) +{ + suppress_errthrow = FALSE; + trylevel = dsp->trylevel; + force_abort = dsp->force_abort; + caught_stack = dsp->caught_stack; + (void)v_exception(dsp->vv_exception); + (void)v_throwpoint(dsp->vv_throwpoint); + did_emsg = dsp->did_emsg; + got_int = dsp->got_int; + did_throw = dsp->did_throw; + need_rethrow = dsp->need_rethrow; + check_cstack = dsp->check_cstack; + current_exception = dsp->current_exception; +} + + +/* + * do_exmode(): Repeatedly get commands for the "Ex" mode, until the ":vi" + * command is given. + */ +void +do_exmode ( + int improved /* TRUE for "improved Ex" mode */ +) +{ + int save_msg_scroll; + int prev_msg_row; + linenr_T prev_line; + int changedtick; + + if (improved) + exmode_active = EXMODE_VIM; + else + exmode_active = EXMODE_NORMAL; + State = NORMAL; + + /* When using ":global /pat/ visual" and then "Q" we return to continue + * the :global command. */ + if (global_busy) + return; + + save_msg_scroll = msg_scroll; + ++RedrawingDisabled; /* don't redisplay the window */ + ++no_wait_return; /* don't wait for return */ + + MSG(_("Entering Ex mode. Type \"visual\" to go to Normal mode.")); + while (exmode_active) { + /* Check for a ":normal" command and no more characters left. */ + if (ex_normal_busy > 0 && typebuf.tb_len == 0) { + exmode_active = FALSE; + break; + } + msg_scroll = TRUE; + need_wait_return = FALSE; + ex_pressedreturn = FALSE; + ex_no_reprint = FALSE; + changedtick = curbuf->b_changedtick; + prev_msg_row = msg_row; + prev_line = curwin->w_cursor.lnum; + if (improved) { + cmdline_row = msg_row; + do_cmdline(NULL, getexline, NULL, 0); + } else + do_cmdline(NULL, getexmodeline, NULL, DOCMD_NOWAIT); + lines_left = Rows - 1; + + if ((prev_line != curwin->w_cursor.lnum + || changedtick != curbuf->b_changedtick) && !ex_no_reprint) { + if (curbuf->b_ml.ml_flags & ML_EMPTY) + EMSG(_(e_emptybuf)); + else { + if (ex_pressedreturn) { + /* go up one line, to overwrite the ":<CR>" line, so the + * output doesn't contain empty lines. */ + msg_row = prev_msg_row; + if (prev_msg_row == Rows - 1) + msg_row--; + } + msg_col = 0; + print_line_no_prefix(curwin->w_cursor.lnum, FALSE, FALSE); + msg_clr_eos(); + } + } else if (ex_pressedreturn && !ex_no_reprint) { /* must be at EOF */ + if (curbuf->b_ml.ml_flags & ML_EMPTY) + EMSG(_(e_emptybuf)); + else + EMSG(_("E501: At end-of-file")); + } + } + + --RedrawingDisabled; + --no_wait_return; + update_screen(CLEAR); + need_wait_return = FALSE; + msg_scroll = save_msg_scroll; +} + +/* + * Execute a simple command line. Used for translated commands like "*". + */ +int do_cmdline_cmd(char_u *cmd) +{ + return do_cmdline(cmd, NULL, NULL, + DOCMD_VERBOSE|DOCMD_NOWAIT|DOCMD_KEYTYPED); +} + +/* + * do_cmdline(): execute one Ex command line + * + * 1. Execute "cmdline" when it is not NULL. + * If "cmdline" is NULL, or more lines are needed, fgetline() is used. + * 2. Split up in parts separated with '|'. + * + * This function can be called recursively! + * + * flags: + * DOCMD_VERBOSE - The command will be included in the error message. + * DOCMD_NOWAIT - Don't call wait_return() and friends. + * DOCMD_REPEAT - Repeat execution until fgetline() returns NULL. + * DOCMD_KEYTYPED - Don't reset KeyTyped. + * DOCMD_EXCRESET - Reset the exception environment (used for debugging). + * DOCMD_KEEPLINE - Store first typed line (for repeating with "."). + * + * return FAIL if cmdline could not be executed, OK otherwise + */ +int do_cmdline(cmdline, fgetline, cookie, flags) +char_u *cmdline; +char_u *(*fgetline)(int, void *, int); +void *cookie; /* argument for fgetline() */ +int flags; +{ + char_u *next_cmdline; /* next cmd to execute */ + char_u *cmdline_copy = NULL; /* copy of cmd line */ + int used_getline = FALSE; /* used "fgetline" to obtain command */ + static int recursive = 0; /* recursive depth */ + int msg_didout_before_start = 0; + int count = 0; /* line number count */ + int did_inc = FALSE; /* incremented RedrawingDisabled */ + int retval = OK; + struct condstack cstack; /* conditional stack */ + garray_T lines_ga; /* keep lines for ":while"/":for" */ + int current_line = 0; /* active line in lines_ga */ + char_u *fname = NULL; /* function or script name */ + linenr_T *breakpoint = NULL; /* ptr to breakpoint field in cookie */ + int *dbg_tick = NULL; /* ptr to dbg_tick field in cookie */ + struct dbg_stuff debug_saved; /* saved things for debug mode */ + int initial_trylevel; + struct msglist **saved_msg_list = NULL; + struct msglist *private_msg_list; + + /* "fgetline" and "cookie" passed to do_one_cmd() */ + char_u *(*cmd_getline)(int, void *, int); + void *cmd_cookie; + struct loop_cookie cmd_loop_cookie; + void *real_cookie; + int getline_is_func; + static int call_depth = 0; /* recursiveness */ + + /* For every pair of do_cmdline()/do_one_cmd() calls, use an extra memory + * location for storing error messages to be converted to an exception. + * This ensures that the do_errthrow() call in do_one_cmd() does not + * combine the messages stored by an earlier invocation of do_one_cmd() + * with the command name of the later one. This would happen when + * BufWritePost autocommands are executed after a write error. */ + saved_msg_list = msg_list; + msg_list = &private_msg_list; + private_msg_list = NULL; + + /* It's possible to create an endless loop with ":execute", catch that + * here. The value of 200 allows nested function calls, ":source", etc. */ + if (call_depth == 200) { + EMSG(_("E169: Command too recursive")); + /* When converting to an exception, we do not include the command name + * since this is not an error of the specific command. */ + do_errthrow((struct condstack *)NULL, (char_u *)NULL); + msg_list = saved_msg_list; + return FAIL; + } + ++call_depth; + + cstack.cs_idx = -1; + cstack.cs_looplevel = 0; + cstack.cs_trylevel = 0; + cstack.cs_emsg_silent_list = NULL; + cstack.cs_lflags = 0; + ga_init(&lines_ga, (int)sizeof(wcmd_T), 10); + + real_cookie = getline_cookie(fgetline, cookie); + + /* Inside a function use a higher nesting level. */ + getline_is_func = getline_equal(fgetline, cookie, get_func_line); + if (getline_is_func && ex_nesting_level == func_level(real_cookie)) + ++ex_nesting_level; + + /* Get the function or script name and the address where the next breakpoint + * line and the debug tick for a function or script are stored. */ + if (getline_is_func) { + fname = func_name(real_cookie); + breakpoint = func_breakpoint(real_cookie); + dbg_tick = func_dbg_tick(real_cookie); + } else if (getline_equal(fgetline, cookie, getsourceline)) { + fname = sourcing_name; + breakpoint = source_breakpoint(real_cookie); + dbg_tick = source_dbg_tick(real_cookie); + } + + /* + * Initialize "force_abort" and "suppress_errthrow" at the top level. + */ + if (!recursive) { + force_abort = FALSE; + suppress_errthrow = FALSE; + } + + /* + * If requested, store and reset the global values controlling the + * exception handling (used when debugging). Otherwise clear it to avoid + * a bogus compiler warning when the optimizer uses inline functions... + */ + if (flags & DOCMD_EXCRESET) + save_dbg_stuff(&debug_saved); + else + memset(&debug_saved, 0, 1); + + initial_trylevel = trylevel; + + /* + * "did_throw" will be set to TRUE when an exception is being thrown. + */ + did_throw = FALSE; + /* + * "did_emsg" will be set to TRUE when emsg() is used, in which case we + * cancel the whole command line, and any if/endif or loop. + * If force_abort is set, we cancel everything. + */ + did_emsg = FALSE; + + /* + * KeyTyped is only set when calling vgetc(). Reset it here when not + * calling vgetc() (sourced command lines). + */ + if (!(flags & DOCMD_KEYTYPED) + && !getline_equal(fgetline, cookie, getexline)) + KeyTyped = FALSE; + + /* + * Continue executing command lines: + * - when inside an ":if", ":while" or ":for" + * - for multiple commands on one line, separated with '|' + * - when repeating until there are no more lines (for ":source") + */ + next_cmdline = cmdline; + do { + getline_is_func = getline_equal(fgetline, cookie, get_func_line); + + /* stop skipping cmds for an error msg after all endif/while/for */ + if (next_cmdline == NULL + && !force_abort + && cstack.cs_idx < 0 + && !(getline_is_func && func_has_abort(real_cookie)) + ) + did_emsg = FALSE; + + /* + * 1. If repeating a line in a loop, get a line from lines_ga. + * 2. If no line given: Get an allocated line with fgetline(). + * 3. If a line is given: Make a copy, so we can mess with it. + */ + + /* 1. If repeating, get a previous line from lines_ga. */ + if (cstack.cs_looplevel > 0 && current_line < lines_ga.ga_len) { + /* Each '|' separated command is stored separately in lines_ga, to + * be able to jump to it. Don't use next_cmdline now. */ + free(cmdline_copy); + cmdline_copy = NULL; + + /* Check if a function has returned or, unless it has an unclosed + * try conditional, aborted. */ + if (getline_is_func) { + if (do_profiling == PROF_YES) + func_line_end(real_cookie); + if (func_has_ended(real_cookie)) { + retval = FAIL; + break; + } + } else if (do_profiling == PROF_YES + && getline_equal(fgetline, cookie, getsourceline)) + script_line_end(); + + /* Check if a sourced file hit a ":finish" command. */ + if (source_finished(fgetline, cookie)) { + retval = FAIL; + break; + } + + /* If breakpoints have been added/deleted need to check for it. */ + if (breakpoint != NULL && dbg_tick != NULL + && *dbg_tick != debug_tick) { + *breakpoint = dbg_find_breakpoint( + getline_equal(fgetline, cookie, getsourceline), + fname, sourcing_lnum); + *dbg_tick = debug_tick; + } + + next_cmdline = ((wcmd_T *)(lines_ga.ga_data))[current_line].line; + sourcing_lnum = ((wcmd_T *)(lines_ga.ga_data))[current_line].lnum; + + /* Did we encounter a breakpoint? */ + if (breakpoint != NULL && *breakpoint != 0 + && *breakpoint <= sourcing_lnum) { + dbg_breakpoint(fname, sourcing_lnum); + /* Find next breakpoint. */ + *breakpoint = dbg_find_breakpoint( + getline_equal(fgetline, cookie, getsourceline), + fname, sourcing_lnum); + *dbg_tick = debug_tick; + } + if (do_profiling == PROF_YES) { + if (getline_is_func) + func_line_start(real_cookie); + else if (getline_equal(fgetline, cookie, getsourceline)) + script_line_start(); + } + } + + if (cstack.cs_looplevel > 0) { + /* Inside a while/for loop we need to store the lines and use them + * again. Pass a different "fgetline" function to do_one_cmd() + * below, so that it stores lines in or reads them from + * "lines_ga". Makes it possible to define a function inside a + * while/for loop. */ + cmd_getline = get_loop_line; + cmd_cookie = (void *)&cmd_loop_cookie; + cmd_loop_cookie.lines_gap = &lines_ga; + cmd_loop_cookie.current_line = current_line; + cmd_loop_cookie.getline = fgetline; + cmd_loop_cookie.cookie = cookie; + cmd_loop_cookie.repeating = (current_line < lines_ga.ga_len); + } else { + cmd_getline = fgetline; + cmd_cookie = cookie; + } + + /* 2. If no line given, get an allocated line with fgetline(). */ + if (next_cmdline == NULL) { + /* + * Need to set msg_didout for the first line after an ":if", + * otherwise the ":if" will be overwritten. + */ + if (count == 1 && getline_equal(fgetline, cookie, getexline)) + msg_didout = TRUE; + if (fgetline == NULL || (next_cmdline = fgetline(':', cookie, + cstack.cs_idx < + 0 ? 0 : (cstack.cs_idx + 1) * 2 + )) == NULL) { + /* Don't call wait_return for aborted command line. The NULL + * returned for the end of a sourced file or executed function + * doesn't do this. */ + if (KeyTyped && !(flags & DOCMD_REPEAT)) + need_wait_return = FALSE; + retval = FAIL; + break; + } + used_getline = TRUE; + + /* + * Keep the first typed line. Clear it when more lines are typed. + */ + if (flags & DOCMD_KEEPLINE) { + free(repeat_cmdline); + if (count == 0) + repeat_cmdline = vim_strsave(next_cmdline); + else + repeat_cmdline = NULL; + } + } + /* 3. Make a copy of the command so we can mess with it. */ + else if (cmdline_copy == NULL) { + next_cmdline = vim_strsave(next_cmdline); + if (next_cmdline == NULL) { + EMSG(_(e_outofmem)); + retval = FAIL; + break; + } + } + cmdline_copy = next_cmdline; + + /* + * Save the current line when inside a ":while" or ":for", and when + * the command looks like a ":while" or ":for", because we may need it + * later. When there is a '|' and another command, it is stored + * separately, because we need to be able to jump back to it from an + * :endwhile/:endfor. + */ + if (current_line == lines_ga.ga_len + && (cstack.cs_looplevel || has_loop_cmd(next_cmdline))) { + store_loop_line(&lines_ga, next_cmdline); + } + did_endif = FALSE; + + if (count++ == 0) { + /* + * All output from the commands is put below each other, without + * waiting for a return. Don't do this when executing commands + * from a script or when being called recursive (e.g. for ":e + * +command file"). + */ + if (!(flags & DOCMD_NOWAIT) && !recursive) { + msg_didout_before_start = msg_didout; + msg_didany = FALSE; /* no output yet */ + msg_start(); + msg_scroll = TRUE; /* put messages below each other */ + ++no_wait_return; /* don't wait for return until finished */ + ++RedrawingDisabled; + did_inc = TRUE; + } + } + + if (p_verbose >= 15 && sourcing_name != NULL) { + ++no_wait_return; + verbose_enter_scroll(); + + smsg((char_u *)_("line %" PRId64 ": %s"), + (int64_t)sourcing_lnum, cmdline_copy); + if (msg_silent == 0) + msg_puts((char_u *)"\n"); /* don't overwrite this */ + + verbose_leave_scroll(); + --no_wait_return; + } + + /* + * 2. Execute one '|' separated command. + * do_one_cmd() will return NULL if there is no trailing '|'. + * "cmdline_copy" can change, e.g. for '%' and '#' expansion. + */ + ++recursive; + next_cmdline = do_one_cmd(&cmdline_copy, flags & DOCMD_VERBOSE, + &cstack, + cmd_getline, cmd_cookie); + --recursive; + + if (cmd_cookie == (void *)&cmd_loop_cookie) + /* Use "current_line" from "cmd_loop_cookie", it may have been + * incremented when defining a function. */ + current_line = cmd_loop_cookie.current_line; + + if (next_cmdline == NULL) { + free(cmdline_copy); + cmdline_copy = NULL; + /* + * If the command was typed, remember it for the ':' register. + * Do this AFTER executing the command to make :@: work. + */ + if (getline_equal(fgetline, cookie, getexline) + && new_last_cmdline != NULL) { + free(last_cmdline); + last_cmdline = new_last_cmdline; + new_last_cmdline = NULL; + } + } else { + /* need to copy the command after the '|' to cmdline_copy, for the + * next do_one_cmd() */ + STRMOVE(cmdline_copy, next_cmdline); + next_cmdline = cmdline_copy; + } + + + /* reset did_emsg for a function that is not aborted by an error */ + if (did_emsg && !force_abort + && getline_equal(fgetline, cookie, get_func_line) + && !func_has_abort(real_cookie)) + did_emsg = FALSE; + + if (cstack.cs_looplevel > 0) { + ++current_line; + + /* + * An ":endwhile", ":endfor" and ":continue" is handled here. + * If we were executing commands, jump back to the ":while" or + * ":for". + * If we were not executing commands, decrement cs_looplevel. + */ + if (cstack.cs_lflags & (CSL_HAD_CONT | CSL_HAD_ENDLOOP)) { + cstack.cs_lflags &= ~(CSL_HAD_CONT | CSL_HAD_ENDLOOP); + + /* Jump back to the matching ":while" or ":for". Be careful + * not to use a cs_line[] from an entry that isn't a ":while" + * or ":for": It would make "current_line" invalid and can + * cause a crash. */ + if (!did_emsg && !got_int && !did_throw + && cstack.cs_idx >= 0 + && (cstack.cs_flags[cstack.cs_idx] + & (CSF_WHILE | CSF_FOR)) + && cstack.cs_line[cstack.cs_idx] >= 0 + && (cstack.cs_flags[cstack.cs_idx] & CSF_ACTIVE)) { + current_line = cstack.cs_line[cstack.cs_idx]; + /* remember we jumped there */ + cstack.cs_lflags |= CSL_HAD_LOOP; + line_breakcheck(); /* check if CTRL-C typed */ + + /* Check for the next breakpoint at or after the ":while" + * or ":for". */ + if (breakpoint != NULL) { + *breakpoint = dbg_find_breakpoint( + getline_equal(fgetline, cookie, getsourceline), + fname, + ((wcmd_T *)lines_ga.ga_data)[current_line].lnum-1); + *dbg_tick = debug_tick; + } + } else { + /* can only get here with ":endwhile" or ":endfor" */ + if (cstack.cs_idx >= 0) + rewind_conditionals(&cstack, cstack.cs_idx - 1, + CSF_WHILE | CSF_FOR, &cstack.cs_looplevel); + } + } + /* + * For a ":while" or ":for" we need to remember the line number. + */ + else if (cstack.cs_lflags & CSL_HAD_LOOP) { + cstack.cs_lflags &= ~CSL_HAD_LOOP; + cstack.cs_line[cstack.cs_idx] = current_line - 1; + } + } + + /* + * When not inside any ":while" loop, clear remembered lines. + */ + if (cstack.cs_looplevel == 0) { + if (lines_ga.ga_len > 0) { + sourcing_lnum = + ((wcmd_T *)lines_ga.ga_data)[lines_ga.ga_len - 1].lnum; + free_cmdlines(&lines_ga); + } + current_line = 0; + } + + /* + * A ":finally" makes did_emsg, got_int, and did_throw pending for + * being restored at the ":endtry". Reset them here and set the + * ACTIVE and FINALLY flags, so that the finally clause gets executed. + * This includes the case where a missing ":endif", ":endwhile" or + * ":endfor" was detected by the ":finally" itself. + */ + if (cstack.cs_lflags & CSL_HAD_FINA) { + cstack.cs_lflags &= ~CSL_HAD_FINA; + report_make_pending(cstack.cs_pending[cstack.cs_idx] + & (CSTP_ERROR | CSTP_INTERRUPT | CSTP_THROW), + did_throw ? (void *)current_exception : NULL); + did_emsg = got_int = did_throw = FALSE; + cstack.cs_flags[cstack.cs_idx] |= CSF_ACTIVE | CSF_FINALLY; + } + + /* Update global "trylevel" for recursive calls to do_cmdline() from + * within this loop. */ + trylevel = initial_trylevel + cstack.cs_trylevel; + + /* + * If the outermost try conditional (across function calls and sourced + * files) is aborted because of an error, an interrupt, or an uncaught + * exception, cancel everything. If it is left normally, reset + * force_abort to get the non-EH compatible abortion behavior for + * the rest of the script. + */ + if (trylevel == 0 && !did_emsg && !got_int && !did_throw) + force_abort = FALSE; + + /* Convert an interrupt to an exception if appropriate. */ + (void)do_intthrow(&cstack); + + } + /* + * Continue executing command lines when: + * - no CTRL-C typed, no aborting error, no exception thrown or try + * conditionals need to be checked for executing finally clauses or + * catching an interrupt exception + * - didn't get an error message or lines are not typed + * - there is a command after '|', inside a :if, :while, :for or :try, or + * looping for ":source" command or function call. + */ + while (!((got_int + || (did_emsg && force_abort) || did_throw + ) + && cstack.cs_trylevel == 0 + ) + && !(did_emsg + /* Keep going when inside try/catch, so that the error can be + * deal with, except when it is a syntax error, it may cause + * the :endtry to be missed. */ + && (cstack.cs_trylevel == 0 || did_emsg_syntax) + && used_getline + && (getline_equal(fgetline, cookie, getexmodeline) + || getline_equal(fgetline, cookie, getexline))) + && (next_cmdline != NULL + || cstack.cs_idx >= 0 + || (flags & DOCMD_REPEAT))); + + free(cmdline_copy); + did_emsg_syntax = FALSE; + free_cmdlines(&lines_ga); + ga_clear(&lines_ga); + + if (cstack.cs_idx >= 0) { + /* + * If a sourced file or executed function ran to its end, report the + * unclosed conditional. + */ + if (!got_int && !did_throw + && ((getline_equal(fgetline, cookie, getsourceline) + && !source_finished(fgetline, cookie)) + || (getline_equal(fgetline, cookie, get_func_line) + && !func_has_ended(real_cookie)))) { + if (cstack.cs_flags[cstack.cs_idx] & CSF_TRY) + EMSG(_(e_endtry)); + else if (cstack.cs_flags[cstack.cs_idx] & CSF_WHILE) + EMSG(_(e_endwhile)); + else if (cstack.cs_flags[cstack.cs_idx] & CSF_FOR) + EMSG(_(e_endfor)); + else + EMSG(_(e_endif)); + } + + /* + * Reset "trylevel" in case of a ":finish" or ":return" or a missing + * ":endtry" in a sourced file or executed function. If the try + * conditional is in its finally clause, ignore anything pending. + * If it is in a catch clause, finish the caught exception. + * Also cleanup any "cs_forinfo" structures. + */ + do { + int idx = cleanup_conditionals(&cstack, 0, TRUE); + + if (idx >= 0) + --idx; /* remove try block not in its finally clause */ + rewind_conditionals(&cstack, idx, CSF_WHILE | CSF_FOR, + &cstack.cs_looplevel); + } while (cstack.cs_idx >= 0); + trylevel = initial_trylevel; + } + + /* If a missing ":endtry", ":endwhile", ":endfor", or ":endif" or a memory + * lack was reported above and the error message is to be converted to an + * exception, do this now after rewinding the cstack. */ + do_errthrow(&cstack, getline_equal(fgetline, cookie, get_func_line) + ? (char_u *)"endfunction" : (char_u *)NULL); + + if (trylevel == 0) { + /* + * When an exception is being thrown out of the outermost try + * conditional, discard the uncaught exception, disable the conversion + * of interrupts or errors to exceptions, and ensure that no more + * commands are executed. + */ + if (did_throw) { + void *p = NULL; + char_u *saved_sourcing_name; + int saved_sourcing_lnum; + struct msglist *messages = NULL, *next; + + /* + * If the uncaught exception is a user exception, report it as an + * error. If it is an error exception, display the saved error + * message now. For an interrupt exception, do nothing; the + * interrupt message is given elsewhere. + */ + switch (current_exception->type) { + case ET_USER: + vim_snprintf((char *)IObuff, IOSIZE, + _("E605: Exception not caught: %s"), + current_exception->value); + p = vim_strsave(IObuff); + break; + case ET_ERROR: + messages = current_exception->messages; + current_exception->messages = NULL; + break; + case ET_INTERRUPT: + break; + default: + p = vim_strsave((char_u *)_(e_internal)); + } + + saved_sourcing_name = sourcing_name; + saved_sourcing_lnum = sourcing_lnum; + sourcing_name = current_exception->throw_name; + sourcing_lnum = current_exception->throw_lnum; + current_exception->throw_name = NULL; + + discard_current_exception(); /* uses IObuff if 'verbose' */ + suppress_errthrow = TRUE; + force_abort = TRUE; + + if (messages != NULL) { + do { + next = messages->next; + emsg(messages->msg); + free(messages->msg); + free(messages); + messages = next; + } while (messages != NULL); + } else if (p != NULL) { + emsg(p); + free(p); + } + free(sourcing_name); + sourcing_name = saved_sourcing_name; + sourcing_lnum = saved_sourcing_lnum; + } + /* + * On an interrupt or an aborting error not converted to an exception, + * disable the conversion of errors to exceptions. (Interrupts are not + * converted any more, here.) This enables also the interrupt message + * when force_abort is set and did_emsg unset in case of an interrupt + * from a finally clause after an error. + */ + else if (got_int || (did_emsg && force_abort)) + suppress_errthrow = TRUE; + } + + /* + * The current cstack will be freed when do_cmdline() returns. An uncaught + * exception will have to be rethrown in the previous cstack. If a function + * has just returned or a script file was just finished and the previous + * cstack belongs to the same function or, respectively, script file, it + * will have to be checked for finally clauses to be executed due to the + * ":return" or ":finish". This is done in do_one_cmd(). + */ + if (did_throw) + need_rethrow = TRUE; + if ((getline_equal(fgetline, cookie, getsourceline) + && ex_nesting_level > source_level(real_cookie)) + || (getline_equal(fgetline, cookie, get_func_line) + && ex_nesting_level > func_level(real_cookie) + 1)) { + if (!did_throw) + check_cstack = TRUE; + } else { + /* When leaving a function, reduce nesting level. */ + if (getline_equal(fgetline, cookie, get_func_line)) + --ex_nesting_level; + /* + * Go to debug mode when returning from a function in which we are + * single-stepping. + */ + if ((getline_equal(fgetline, cookie, getsourceline) + || getline_equal(fgetline, cookie, get_func_line)) + && ex_nesting_level + 1 <= debug_break_level) + do_debug(getline_equal(fgetline, cookie, getsourceline) + ? (char_u *)_("End of sourced file") + : (char_u *)_("End of function")); + } + + /* + * Restore the exception environment (done after returning from the + * debugger). + */ + if (flags & DOCMD_EXCRESET) + restore_dbg_stuff(&debug_saved); + + msg_list = saved_msg_list; + + /* + * If there was too much output to fit on the command line, ask the user to + * hit return before redrawing the screen. With the ":global" command we do + * this only once after the command is finished. + */ + if (did_inc) { + --RedrawingDisabled; + --no_wait_return; + msg_scroll = FALSE; + + /* + * When just finished an ":if"-":else" which was typed, no need to + * wait for hit-return. Also for an error situation. + */ + if (retval == FAIL + || (did_endif && KeyTyped && !did_emsg) + ) { + need_wait_return = FALSE; + msg_didany = FALSE; /* don't wait when restarting edit */ + } else if (need_wait_return) { + /* + * The msg_start() above clears msg_didout. The wait_return we do + * here should not overwrite the command that may be shown before + * doing that. + */ + msg_didout |= msg_didout_before_start; + wait_return(FALSE); + } + } + + did_endif = FALSE; /* in case do_cmdline used recursively */ + + --call_depth; + return retval; +} + +/* + * Obtain a line when inside a ":while" or ":for" loop. + */ +static char_u *get_loop_line(int c, void *cookie, int indent) +{ + struct loop_cookie *cp = (struct loop_cookie *)cookie; + wcmd_T *wp; + char_u *line; + + if (cp->current_line + 1 >= cp->lines_gap->ga_len) { + if (cp->repeating) + return NULL; /* trying to read past ":endwhile"/":endfor" */ + + /* First time inside the ":while"/":for": get line normally. */ + if (cp->getline == NULL) + line = getcmdline(c, 0L, indent); + else + line = cp->getline(c, cp->cookie, indent); + if (line != NULL) { + store_loop_line(cp->lines_gap, line); + ++cp->current_line; + } + + return line; + } + + KeyTyped = FALSE; + ++cp->current_line; + wp = (wcmd_T *)(cp->lines_gap->ga_data) + cp->current_line; + sourcing_lnum = wp->lnum; + return vim_strsave(wp->line); +} + +/* + * Store a line in "gap" so that a ":while" loop can execute it again. + */ +static void store_loop_line(garray_T *gap, char_u *line) +{ + ga_grow(gap, 1); + ((wcmd_T *)(gap->ga_data))[gap->ga_len].line = vim_strsave(line); + ((wcmd_T *)(gap->ga_data))[gap->ga_len].lnum = sourcing_lnum; + ++gap->ga_len; +} + +/* + * Free the lines stored for a ":while" or ":for" loop. + */ +static void free_cmdlines(garray_T *gap) +{ + while (gap->ga_len > 0) { + free(((wcmd_T *)(gap->ga_data))[gap->ga_len - 1].line); + --gap->ga_len; + } +} + +/* + * If "fgetline" is get_loop_line(), return TRUE if the getline it uses equals + * "func". * Otherwise return TRUE when "fgetline" equals "func". + */ +int getline_equal(fgetline, cookie, func) +char_u *(*fgetline)(int, void *, int); +void *cookie; /* argument for fgetline() */ +char_u *(*func)(int, void *, int); +{ + char_u *(*gp)(int, void *, int); + struct loop_cookie *cp; + + /* When "fgetline" is "get_loop_line()" use the "cookie" to find the + * function that's originally used to obtain the lines. This may be + * nested several levels. */ + gp = fgetline; + cp = (struct loop_cookie *)cookie; + while (gp == get_loop_line) { + gp = cp->getline; + cp = cp->cookie; + } + return gp == func; +} + +/* + * If "fgetline" is get_loop_line(), return the cookie used by the original + * getline function. Otherwise return "cookie". + */ +void * getline_cookie(fgetline, cookie) +char_u *(*fgetline)(int, void *, int); +void *cookie; /* argument for fgetline() */ +{ + char_u *(*gp)(int, void *, int); + struct loop_cookie *cp; + + /* When "fgetline" is "get_loop_line()" use the "cookie" to find the + * cookie that's originally used to obtain the lines. This may be nested + * several levels. */ + gp = fgetline; + cp = (struct loop_cookie *)cookie; + while (gp == get_loop_line) { + gp = cp->getline; + cp = cp->cookie; + } + return cp; +} + +/* + * Execute one Ex command. + * + * If 'sourcing' is TRUE, the command will be included in the error message. + * + * 1. skip comment lines and leading space + * 2. handle command modifiers + * 3. parse range + * 4. parse command + * 5. parse arguments + * 6. switch on command name + * + * Note: "fgetline" can be NULL. + * + * This function may be called recursively! + */ +static char_u * do_one_cmd(cmdlinep, sourcing, + cstack, + fgetline, cookie) +char_u **cmdlinep; +int sourcing; +struct condstack *cstack; +char_u *(*fgetline)(int, void *, int); +void *cookie; /*argument for fgetline() */ +{ + char_u *p; + linenr_T lnum; + long n; + char_u *errormsg = NULL; /* error message */ + exarg_T ea; /* Ex command arguments */ + long verbose_save = -1; + int save_msg_scroll = msg_scroll; + int save_msg_silent = -1; + int did_esilent = 0; +#ifdef HAVE_SANDBOX + int did_sandbox = FALSE; +#endif + cmdmod_T save_cmdmod; + int ni; /* set when Not Implemented */ + + memset(&ea, 0, sizeof(ea)); + ea.line1 = 1; + ea.line2 = 1; + ++ex_nesting_level; + + /* When the last file has not been edited :q has to be typed twice. */ + if (quitmore + /* avoid that a function call in 'statusline' does this */ + && !getline_equal(fgetline, cookie, get_func_line) + /* avoid that an autocommand, e.g. QuitPre, does this */ + && !getline_equal(fgetline, cookie, getnextac) + ) + --quitmore; + + /* + * Reset browse, confirm, etc.. They are restored when returning, for + * recursive calls. + */ + save_cmdmod = cmdmod; + memset(&cmdmod, 0, sizeof(cmdmod)); + + /* "#!anything" is handled like a comment. */ + if ((*cmdlinep)[0] == '#' && (*cmdlinep)[1] == '!') + goto doend; + + /* + * Repeat until no more command modifiers are found. + */ + ea.cmd = *cmdlinep; + for (;; ) { + /* + * 1. skip comment lines and leading white space and colons + */ + while (*ea.cmd == ' ' || *ea.cmd == '\t' || *ea.cmd == ':') + ++ea.cmd; + + /* in ex mode, an empty line works like :+ */ + if (*ea.cmd == NUL && exmode_active + && (getline_equal(fgetline, cookie, getexmodeline) + || getline_equal(fgetline, cookie, getexline)) + && curwin->w_cursor.lnum < curbuf->b_ml.ml_line_count) { + ea.cmd = (char_u *)"+"; + ex_pressedreturn = TRUE; + } + + /* ignore comment and empty lines */ + if (*ea.cmd == '"') + goto doend; + if (*ea.cmd == NUL) { + ex_pressedreturn = TRUE; + goto doend; + } + + /* + * 2. handle command modifiers. + */ + p = ea.cmd; + if (VIM_ISDIGIT(*ea.cmd)) + p = skipwhite(skipdigits(ea.cmd)); + switch (*p) { + /* When adding an entry, also modify cmd_exists(). */ + case 'a': if (!checkforcmd(&ea.cmd, "aboveleft", 3)) + break; + cmdmod.split |= WSP_ABOVE; + continue; + + case 'b': if (checkforcmd(&ea.cmd, "belowright", 3)) { + cmdmod.split |= WSP_BELOW; + continue; + } + if (checkforcmd(&ea.cmd, "browse", 3)) { + continue; + } + if (!checkforcmd(&ea.cmd, "botright", 2)) + break; + cmdmod.split |= WSP_BOT; + continue; + + case 'c': if (!checkforcmd(&ea.cmd, "confirm", 4)) + break; + cmdmod.confirm = TRUE; + continue; + + case 'k': if (checkforcmd(&ea.cmd, "keepmarks", 3)) { + cmdmod.keepmarks = TRUE; + continue; + } + if (checkforcmd(&ea.cmd, "keepalt", 5)) { + cmdmod.keepalt = TRUE; + continue; + } + if (checkforcmd(&ea.cmd, "keeppatterns", 5)) { + cmdmod.keeppatterns = TRUE; + continue; + } + if (!checkforcmd(&ea.cmd, "keepjumps", 5)) + break; + cmdmod.keepjumps = TRUE; + continue; + + /* ":hide" and ":hide | cmd" are not modifiers */ + case 'h': if (p != ea.cmd || !checkforcmd(&p, "hide", 3) + || *p == NUL || ends_excmd(*p)) + break; + ea.cmd = p; + cmdmod.hide = TRUE; + continue; + + case 'l': if (checkforcmd(&ea.cmd, "lockmarks", 3)) { + cmdmod.lockmarks = TRUE; + continue; + } + + if (!checkforcmd(&ea.cmd, "leftabove", 5)) + break; + cmdmod.split |= WSP_ABOVE; + continue; + + case 'n': + if (checkforcmd(&ea.cmd, "noautocmd", 3)) { + if (cmdmod.save_ei == NULL) { + /* Set 'eventignore' to "all". Restore the + * existing option value later. */ + cmdmod.save_ei = vim_strsave(p_ei); + set_string_option_direct( + (char_u *)"ei", -1, (char_u *)"all", OPT_FREE, SID_NONE); + } + continue; + } + if (!checkforcmd(&ea.cmd, "noswapfile", 6)) { + break; + } + cmdmod.noswapfile = true; + continue; + + case 'r': if (!checkforcmd(&ea.cmd, "rightbelow", 6)) + break; + cmdmod.split |= WSP_BELOW; + continue; + + case 's': if (checkforcmd(&ea.cmd, "sandbox", 3)) { +#ifdef HAVE_SANDBOX + if (!did_sandbox) + ++sandbox; + did_sandbox = TRUE; +#endif + continue; + } + if (!checkforcmd(&ea.cmd, "silent", 3)) + break; + if (save_msg_silent == -1) + save_msg_silent = msg_silent; + ++msg_silent; + if (*ea.cmd == '!' && !vim_iswhite(ea.cmd[-1])) { + /* ":silent!", but not "silent !cmd" */ + ea.cmd = skipwhite(ea.cmd + 1); + ++emsg_silent; + ++did_esilent; + } + continue; + + case 't': if (checkforcmd(&p, "tab", 3)) { + if (vim_isdigit(*ea.cmd)) + cmdmod.tab = atoi((char *)ea.cmd) + 1; + else + cmdmod.tab = tabpage_index(curtab) + 1; + ea.cmd = p; + continue; + } + if (!checkforcmd(&ea.cmd, "topleft", 2)) + break; + cmdmod.split |= WSP_TOP; + continue; + + case 'u': if (!checkforcmd(&ea.cmd, "unsilent", 3)) + break; + if (save_msg_silent == -1) + save_msg_silent = msg_silent; + msg_silent = 0; + continue; + + case 'v': if (checkforcmd(&ea.cmd, "vertical", 4)) { + cmdmod.split |= WSP_VERT; + continue; + } + if (!checkforcmd(&p, "verbose", 4)) + break; + if (verbose_save < 0) + verbose_save = p_verbose; + if (vim_isdigit(*ea.cmd)) + p_verbose = atoi((char *)ea.cmd); + else + p_verbose = 1; + ea.cmd = p; + continue; + } + break; + } + + ea.skip = did_emsg || got_int || did_throw || (cstack->cs_idx >= 0 + && !(cstack->cs_flags[cstack-> + cs_idx] + & CSF_ACTIVE)); + + /* Count this line for profiling if ea.skip is FALSE. */ + if (do_profiling == PROF_YES && !ea.skip) { + if (getline_equal(fgetline, cookie, get_func_line)) + func_line_exec(getline_cookie(fgetline, cookie)); + else if (getline_equal(fgetline, cookie, getsourceline)) + script_line_exec(); + } + + /* May go to debug mode. If this happens and the ">quit" debug command is + * used, throw an interrupt exception and skip the next command. */ + dbg_check_breakpoint(&ea); + if (!ea.skip && got_int) { + ea.skip = TRUE; + (void)do_intthrow(cstack); + } + + /* + * 3. parse a range specifier of the form: addr [,addr] [;addr] .. + * + * where 'addr' is: + * + * % (entire file) + * $ [+-NUM] + * 'x [+-NUM] (where x denotes a currently defined mark) + * . [+-NUM] + * [+-NUM].. + * NUM + * + * The ea.cmd pointer is updated to point to the first character following the + * range spec. If an initial address is found, but no second, the upper bound + * is equal to the lower. + */ + + /* repeat for all ',' or ';' separated addresses */ + for (;; ) { + ea.line1 = ea.line2; + ea.line2 = curwin->w_cursor.lnum; /* default is current line number */ + ea.cmd = skipwhite(ea.cmd); + lnum = get_address(&ea.cmd, ea.skip, ea.addr_count == 0); + if (ea.cmd == NULL) /* error detected */ + goto doend; + if (lnum == MAXLNUM) { + if (*ea.cmd == '%') { /* '%' - all lines */ + ++ea.cmd; + ea.line1 = 1; + ea.line2 = curbuf->b_ml.ml_line_count; + ++ea.addr_count; + } + /* '*' - visual area */ + else if (*ea.cmd == '*' && vim_strchr(p_cpo, CPO_STAR) == NULL) { + pos_T *fp; + + ++ea.cmd; + if (!ea.skip) { + fp = getmark('<', FALSE); + if (check_mark(fp) == FAIL) + goto doend; + ea.line1 = fp->lnum; + fp = getmark('>', FALSE); + if (check_mark(fp) == FAIL) + goto doend; + ea.line2 = fp->lnum; + ++ea.addr_count; + } + } + } else + ea.line2 = lnum; + ea.addr_count++; + + if (*ea.cmd == ';') { + if (!ea.skip) + curwin->w_cursor.lnum = ea.line2; + } else if (*ea.cmd != ',') + break; + ++ea.cmd; + } + + /* One address given: set start and end lines */ + if (ea.addr_count == 1) { + ea.line1 = ea.line2; + /* ... but only implicit: really no address given */ + if (lnum == MAXLNUM) + ea.addr_count = 0; + } + + /* Don't leave the cursor on an illegal line (caused by ';') */ + check_cursor_lnum(); + + /* + * 4. parse command + */ + + /* + * Skip ':' and any white space + */ + ea.cmd = skipwhite(ea.cmd); + while (*ea.cmd == ':') + ea.cmd = skipwhite(ea.cmd + 1); + + /* + * If we got a line, but no command, then go to the line. + * If we find a '|' or '\n' we set ea.nextcmd. + */ + if (*ea.cmd == NUL || *ea.cmd == '"' || + (ea.nextcmd = check_nextcmd(ea.cmd)) != NULL) { + /* + * strange vi behaviour: + * ":3" jumps to line 3 + * ":3|..." prints line 3 + * ":|" prints current line + */ + if (ea.skip) /* skip this if inside :if */ + goto doend; + if (*ea.cmd == '|' || (exmode_active && ea.line1 != ea.line2)) { + ea.cmdidx = CMD_print; + ea.argt = RANGE+COUNT+TRLBAR; + if ((errormsg = invalid_range(&ea)) == NULL) { + correct_range(&ea); + ex_print(&ea); + } + } else if (ea.addr_count != 0) { + if (ea.line2 > curbuf->b_ml.ml_line_count) { + /* With '-' in 'cpoptions' a line number past the file is an + * error, otherwise put it at the end of the file. */ + if (vim_strchr(p_cpo, CPO_MINUS) != NULL) + ea.line2 = -1; + else + ea.line2 = curbuf->b_ml.ml_line_count; + } + + if (ea.line2 < 0) + errormsg = (char_u *)_(e_invrange); + else { + if (ea.line2 == 0) + curwin->w_cursor.lnum = 1; + else + curwin->w_cursor.lnum = ea.line2; + beginline(BL_SOL | BL_FIX); + } + } + goto doend; + } + + /* Find the command and let "p" point to after it. */ + p = find_command(&ea, NULL); + + if (p == NULL) { + if (!ea.skip) + errormsg = (char_u *)_("E464: Ambiguous use of user-defined command"); + goto doend; + } + /* Check for wrong commands. */ + if (*p == '!' && ea.cmd[1] == 0151 && ea.cmd[0] == 78) { + errormsg = uc_fun_cmd(); + goto doend; + } + if (ea.cmdidx == CMD_SIZE) { + if (!ea.skip) { + STRCPY(IObuff, _("E492: Not an editor command")); + if (!sourcing) + append_command(*cmdlinep); + errormsg = IObuff; + did_emsg_syntax = TRUE; + } + goto doend; + } + + ni = ( + !USER_CMDIDX(ea.cmdidx) && + (cmdnames[ea.cmdidx].cmd_func == ex_ni +#ifdef HAVE_EX_SCRIPT_NI + || cmdnames[ea.cmdidx].cmd_func == ex_script_ni +#endif + )); + + + /* forced commands */ + if (*p == '!' && ea.cmdidx != CMD_substitute + && ea.cmdidx != CMD_smagic && ea.cmdidx != CMD_snomagic) { + ++p; + ea.forceit = TRUE; + } else + ea.forceit = FALSE; + + /* + * 5. parse arguments + */ + if (!USER_CMDIDX(ea.cmdidx)) + ea.argt = (long)cmdnames[(int)ea.cmdidx].cmd_argt; + + if (!ea.skip) { +#ifdef HAVE_SANDBOX + if (sandbox != 0 && !(ea.argt & SBOXOK)) { + /* Command not allowed in sandbox. */ + errormsg = (char_u *)_(e_sandbox); + goto doend; + } +#endif + if (!curbuf->b_p_ma && (ea.argt & MODIFY)) { + /* Command not allowed in non-'modifiable' buffer */ + errormsg = (char_u *)_(e_modifiable); + goto doend; + } + + if (text_locked() && !(ea.argt & CMDWIN) + && !USER_CMDIDX(ea.cmdidx) + ) { + /* Command not allowed when editing the command line. */ + if (cmdwin_type != 0) + errormsg = (char_u *)_(e_cmdwin); + else + errormsg = (char_u *)_(e_secure); + goto doend; + } + /* Disallow editing another buffer when "curbuf_lock" is set. + * Do allow ":edit" (check for argument later). + * Do allow ":checktime" (it's postponed). */ + if (!(ea.argt & CMDWIN) + && ea.cmdidx != CMD_edit + && ea.cmdidx != CMD_checktime + && !USER_CMDIDX(ea.cmdidx) + && curbuf_locked()) + goto doend; + + if (!ni && !(ea.argt & RANGE) && ea.addr_count > 0) { + /* no range allowed */ + errormsg = (char_u *)_(e_norange); + goto doend; + } + } + + if (!ni && !(ea.argt & BANG) && ea.forceit) { /* no <!> allowed */ + errormsg = (char_u *)_(e_nobang); + goto doend; + } + + /* + * Don't complain about the range if it is not used + * (could happen if line_count is accidentally set to 0). + */ + if (!ea.skip && !ni) { + /* + * If the range is backwards, ask for confirmation and, if given, swap + * ea.line1 & ea.line2 so it's forwards again. + * When global command is busy, don't ask, will fail below. + */ + if (!global_busy && ea.line1 > ea.line2) { + if (msg_silent == 0) { + if (sourcing || exmode_active) { + errormsg = (char_u *)_("E493: Backwards range given"); + goto doend; + } + if (ask_yesno((char_u *) + _("Backwards range given, OK to swap"), FALSE) != 'y') + goto doend; + } + lnum = ea.line1; + ea.line1 = ea.line2; + ea.line2 = lnum; + } + if ((errormsg = invalid_range(&ea)) != NULL) + goto doend; + } + + if ((ea.argt & NOTADR) && ea.addr_count == 0) /* default is 1, not cursor */ + ea.line2 = 1; + + correct_range(&ea); + + if (((ea.argt & WHOLEFOLD) || ea.addr_count >= 2) && !global_busy) { + /* Put the first line at the start of a closed fold, put the last line + * at the end of a closed fold. */ + (void)hasFolding(ea.line1, &ea.line1, NULL); + (void)hasFolding(ea.line2, NULL, &ea.line2); + } + + /* + * For the ":make" and ":grep" commands we insert the 'makeprg'/'grepprg' + * option here, so things like % get expanded. + */ + p = replace_makeprg(&ea, p, cmdlinep); + if (p == NULL) + goto doend; + + /* + * Skip to start of argument. + * Don't do this for the ":!" command, because ":!! -l" needs the space. + */ + if (ea.cmdidx == CMD_bang) + ea.arg = p; + else + ea.arg = skipwhite(p); + + /* + * Check for "++opt=val" argument. + * Must be first, allow ":w ++enc=utf8 !cmd" + */ + if (ea.argt & ARGOPT) + while (ea.arg[0] == '+' && ea.arg[1] == '+') + if (getargopt(&ea) == FAIL && !ni) { + errormsg = (char_u *)_(e_invarg); + goto doend; + } + + if (ea.cmdidx == CMD_write || ea.cmdidx == CMD_update) { + if (*ea.arg == '>') { /* append */ + if (*++ea.arg != '>') { /* typed wrong */ + errormsg = (char_u *)_("E494: Use w or w>>"); + goto doend; + } + ea.arg = skipwhite(ea.arg + 1); + ea.append = TRUE; + } else if (*ea.arg == '!' && ea.cmdidx == CMD_write) { /* :w !filter */ + ++ea.arg; + ea.usefilter = TRUE; + } + } + + if (ea.cmdidx == CMD_read) { + if (ea.forceit) { + ea.usefilter = TRUE; /* :r! filter if ea.forceit */ + ea.forceit = FALSE; + } else if (*ea.arg == '!') { /* :r !filter */ + ++ea.arg; + ea.usefilter = TRUE; + } + } + + if (ea.cmdidx == CMD_lshift || ea.cmdidx == CMD_rshift) { + ea.amount = 1; + while (*ea.arg == *ea.cmd) { /* count number of '>' or '<' */ + ++ea.arg; + ++ea.amount; + } + ea.arg = skipwhite(ea.arg); + } + + /* + * Check for "+command" argument, before checking for next command. + * Don't do this for ":read !cmd" and ":write !cmd". + */ + if ((ea.argt & EDITCMD) && !ea.usefilter) + ea.do_ecmd_cmd = getargcmd(&ea.arg); + + /* + * Check for '|' to separate commands and '"' to start comments. + * Don't do this for ":read !cmd" and ":write !cmd". + */ + if ((ea.argt & TRLBAR) && !ea.usefilter) + separate_nextcmd(&ea); + + /* + * Check for <newline> to end a shell command. + * Also do this for ":read !cmd", ":write !cmd" and ":global". + * Any others? + */ + else if (ea.cmdidx == CMD_bang + || ea.cmdidx == CMD_global + || ea.cmdidx == CMD_vglobal + || ea.usefilter) { + for (p = ea.arg; *p; ++p) { + /* Remove one backslash before a newline, so that it's possible to + * pass a newline to the shell and also a newline that is preceded + * with a backslash. This makes it impossible to end a shell + * command in a backslash, but that doesn't appear useful. + * Halving the number of backslashes is incompatible with previous + * versions. */ + if (*p == '\\' && p[1] == '\n') + STRMOVE(p, p + 1); + else if (*p == '\n') { + ea.nextcmd = p + 1; + *p = NUL; + break; + } + } + } + + if ((ea.argt & DFLALL) && ea.addr_count == 0) { + ea.line1 = 1; + ea.line2 = curbuf->b_ml.ml_line_count; + } + + /* accept numbered register only when no count allowed (:put) */ + if ( (ea.argt & REGSTR) + && *ea.arg != NUL + /* Do not allow register = for user commands */ + && (!USER_CMDIDX(ea.cmdidx) || *ea.arg != '=') + && !((ea.argt & COUNT) && VIM_ISDIGIT(*ea.arg))) { + /* check these explicitly for a more specific error message */ + if (*ea.arg == '*' || *ea.arg == '+') { + errormsg = (char_u *)_(e_invalidreg); + goto doend; + } + if ( + valid_yank_reg(*ea.arg, (ea.cmdidx != CMD_put + && USER_CMDIDX(ea.cmdidx))) + ) { + ea.regname = *ea.arg++; + /* for '=' register: accept the rest of the line as an expression */ + if (ea.arg[-1] == '=' && ea.arg[0] != NUL) { + set_expr_line(vim_strsave(ea.arg)); + ea.arg += STRLEN(ea.arg); + } + ea.arg = skipwhite(ea.arg); + } + } + + /* + * Check for a count. When accepting a BUFNAME, don't use "123foo" as a + * count, it's a buffer name. + */ + if ((ea.argt & COUNT) && VIM_ISDIGIT(*ea.arg) + && (!(ea.argt & BUFNAME) || *(p = skipdigits(ea.arg)) == NUL + || vim_iswhite(*p))) { + n = getdigits(&ea.arg); + ea.arg = skipwhite(ea.arg); + if (n <= 0 && !ni && (ea.argt & ZEROR) == 0) { + errormsg = (char_u *)_(e_zerocount); + goto doend; + } + if (ea.argt & NOTADR) { /* e.g. :buffer 2, :sleep 3 */ + ea.line2 = n; + if (ea.addr_count == 0) + ea.addr_count = 1; + } else { + ea.line1 = ea.line2; + ea.line2 += n - 1; + ++ea.addr_count; + /* + * Be vi compatible: no error message for out of range. + */ + if (ea.line2 > curbuf->b_ml.ml_line_count) + ea.line2 = curbuf->b_ml.ml_line_count; + } + } + + /* + * Check for flags: 'l', 'p' and '#'. + */ + if (ea.argt & EXFLAGS) + get_flags(&ea); + /* no arguments allowed */ + if (!ni && !(ea.argt & EXTRA) && *ea.arg != NUL + && *ea.arg != '"' && (*ea.arg != '|' || (ea.argt & TRLBAR) == 0)) { + errormsg = (char_u *)_(e_trailing); + goto doend; + } + + if (!ni && (ea.argt & NEEDARG) && *ea.arg == NUL) { + errormsg = (char_u *)_(e_argreq); + goto doend; + } + + /* + * Skip the command when it's not going to be executed. + * The commands like :if, :endif, etc. always need to be executed. + * Also make an exception for commands that handle a trailing command + * themselves. + */ + if (ea.skip) { + switch (ea.cmdidx) { + /* commands that need evaluation */ + case CMD_while: + case CMD_endwhile: + case CMD_for: + case CMD_endfor: + case CMD_if: + case CMD_elseif: + case CMD_else: + case CMD_endif: + case CMD_try: + case CMD_catch: + case CMD_finally: + case CMD_endtry: + case CMD_function: + break; + + /* Commands that handle '|' themselves. Check: A command should + * either have the TRLBAR flag, appear in this list or appear in + * the list at ":help :bar". */ + case CMD_aboveleft: + case CMD_and: + case CMD_belowright: + case CMD_botright: + case CMD_browse: + case CMD_call: + case CMD_confirm: + case CMD_delfunction: + case CMD_djump: + case CMD_dlist: + case CMD_dsearch: + case CMD_dsplit: + case CMD_echo: + case CMD_echoerr: + case CMD_echomsg: + case CMD_echon: + case CMD_execute: + case CMD_help: + case CMD_hide: + case CMD_ijump: + case CMD_ilist: + case CMD_isearch: + case CMD_isplit: + case CMD_keepalt: + case CMD_keepjumps: + case CMD_keepmarks: + case CMD_keeppatterns: + case CMD_leftabove: + case CMD_let: + case CMD_lockmarks: + case CMD_match: + case CMD_noautocmd: + case CMD_noswapfile: + case CMD_psearch: + case CMD_return: + case CMD_rightbelow: + case CMD_silent: + case CMD_smagic: + case CMD_snomagic: + case CMD_substitute: + case CMD_syntax: + case CMD_tab: + case CMD_throw: + case CMD_tilde: + case CMD_topleft: + case CMD_unlet: + case CMD_verbose: + case CMD_vertical: + case CMD_wincmd: + break; + + default: goto doend; + } + } + + if (ea.argt & XFILE) { + if (expand_filename(&ea, cmdlinep, &errormsg) == FAIL) + goto doend; + } + + /* + * Accept buffer name. Cannot be used at the same time with a buffer + * number. Don't do this for a user command. + */ + if ((ea.argt & BUFNAME) && *ea.arg != NUL && ea.addr_count == 0 + && !USER_CMDIDX(ea.cmdidx) + ) { + /* + * :bdelete, :bwipeout and :bunload take several arguments, separated + * by spaces: find next space (skipping over escaped characters). + * The others take one argument: ignore trailing spaces. + */ + if (ea.cmdidx == CMD_bdelete || ea.cmdidx == CMD_bwipeout + || ea.cmdidx == CMD_bunload) + p = skiptowhite_esc(ea.arg); + else { + p = ea.arg + STRLEN(ea.arg); + while (p > ea.arg && vim_iswhite(p[-1])) + --p; + } + ea.line2 = buflist_findpat(ea.arg, p, (ea.argt & BUFUNL) != 0, + FALSE, FALSE); + if (ea.line2 < 0) /* failed */ + goto doend; + ea.addr_count = 1; + ea.arg = skipwhite(p); + } + + /* + * 6. switch on command name + * + * The "ea" structure holds the arguments that can be used. + */ + ea.cmdlinep = cmdlinep; + ea.getline = fgetline; + ea.cookie = cookie; + ea.cstack = cstack; + + if (USER_CMDIDX(ea.cmdidx)) { + /* + * Execute a user-defined command. + */ + do_ucmd(&ea); + } else { + /* + * Call the function to execute the command. + */ + ea.errmsg = NULL; + (cmdnames[ea.cmdidx].cmd_func)(&ea); + if (ea.errmsg != NULL) + errormsg = (char_u *)_(ea.errmsg); + } + + /* + * If the command just executed called do_cmdline(), any throw or ":return" + * or ":finish" encountered there must also check the cstack of the still + * active do_cmdline() that called this do_one_cmd(). Rethrow an uncaught + * exception, or reanimate a returned function or finished script file and + * return or finish it again. + */ + if (need_rethrow) + do_throw(cstack); + else if (check_cstack) { + if (source_finished(fgetline, cookie)) + do_finish(&ea, TRUE); + else if (getline_equal(fgetline, cookie, get_func_line) + && current_func_returned()) + do_return(&ea, TRUE, FALSE, NULL); + } + need_rethrow = check_cstack = FALSE; + +doend: + if (curwin->w_cursor.lnum == 0) /* can happen with zero line number */ + curwin->w_cursor.lnum = 1; + + if (errormsg != NULL && *errormsg != NUL && !did_emsg) { + if (sourcing) { + if (errormsg != IObuff) { + STRCPY(IObuff, errormsg); + errormsg = IObuff; + } + append_command(*cmdlinep); + } + emsg(errormsg); + } + do_errthrow(cstack, + (ea.cmdidx != CMD_SIZE + && !USER_CMDIDX(ea.cmdidx) + ) ? cmdnames[(int)ea.cmdidx].cmd_name : (char_u *)NULL); + + if (verbose_save >= 0) + p_verbose = verbose_save; + if (cmdmod.save_ei != NULL) { + /* Restore 'eventignore' to the value before ":noautocmd". */ + set_string_option_direct((char_u *)"ei", -1, cmdmod.save_ei, + OPT_FREE, SID_NONE); + free_string_option(cmdmod.save_ei); + } + + cmdmod = save_cmdmod; + + if (save_msg_silent != -1) { + /* messages could be enabled for a serious error, need to check if the + * counters don't become negative */ + if (!did_emsg || msg_silent > save_msg_silent) + msg_silent = save_msg_silent; + emsg_silent -= did_esilent; + if (emsg_silent < 0) + emsg_silent = 0; + /* Restore msg_scroll, it's set by file I/O commands, even when no + * message is actually displayed. */ + msg_scroll = save_msg_scroll; + + /* "silent reg" or "silent echo x" inside "redir" leaves msg_col + * somewhere in the line. Put it back in the first column. */ + if (redirecting()) + msg_col = 0; + } + +#ifdef HAVE_SANDBOX + if (did_sandbox) + --sandbox; +#endif + + if (ea.nextcmd && *ea.nextcmd == NUL) /* not really a next command */ + ea.nextcmd = NULL; + + --ex_nesting_level; + + return ea.nextcmd; +} + +/* + * Check for an Ex command with optional tail. + * If there is a match advance "pp" to the argument and return TRUE. + */ +int +checkforcmd ( + char_u **pp, /* start of command */ + char *cmd, /* name of command */ + int len /* required length */ +) +{ + int i; + + for (i = 0; cmd[i] != NUL; ++i) + if (((char_u *)cmd)[i] != (*pp)[i]) + break; + if (i >= len && !isalpha((*pp)[i])) { + *pp = skipwhite(*pp + i); + return TRUE; + } + return FALSE; +} + +/* + * Append "cmd" to the error message in IObuff. + * Takes care of limiting the length and handling 0xa0, which would be + * invisible otherwise. + */ +static void append_command(char_u *cmd) +{ + char_u *s = cmd; + char_u *d; + + STRCAT(IObuff, ": "); + d = IObuff + STRLEN(IObuff); + while (*s != NUL && d - IObuff < IOSIZE - 7) { + if ( + enc_utf8 ? (s[0] == 0xc2 && s[1] == 0xa0) : + *s == 0xa0) { + s += + enc_utf8 ? 2 : + 1; + STRCPY(d, "<a0>"); + d += 4; + } else + MB_COPY_CHAR(s, d); + } + *d = NUL; +} + +/* + * Find an Ex command by its name, either built-in or user. + * Start of the name can be found at eap->cmd. + * Returns pointer to char after the command name. + * "full" is set to TRUE if the whole command name matched. + * Returns NULL for an ambiguous user command. + */ +static char_u *find_command(exarg_T *eap, int *full) +{ + int len; + char_u *p; + int i; + + /* + * Isolate the command and search for it in the command table. + * Exceptions: + * - the 'k' command can directly be followed by any character. + * - the 's' command can be followed directly by 'c', 'g', 'i', 'I' or 'r' + * but :sre[wind] is another command, as are :scrip[tnames], + * :scs[cope], :sim[alt], :sig[ns] and :sil[ent]. + * - the "d" command can directly be followed by 'l' or 'p' flag. + */ + p = eap->cmd; + if (*p == 'k') { + eap->cmdidx = CMD_k; + ++p; + } else if (p[0] == 's' + && ((p[1] == 'c' && p[2] != 's' && p[2] != 'r' + && p[3] != 'i' && p[4] != 'p') + || p[1] == 'g' + || (p[1] == 'i' && p[2] != 'm' && p[2] != 'l' && p[2] != 'g') + || p[1] == 'I' + || (p[1] == 'r' && p[2] != 'e'))) { + eap->cmdidx = CMD_substitute; + ++p; + } else { + while (ASCII_ISALPHA(*p)) + ++p; + /* for python 3.x support ":py3", ":python3", ":py3file", etc. */ + if (eap->cmd[0] == 'p' && eap->cmd[1] == 'y') + while (ASCII_ISALNUM(*p)) + ++p; + + /* check for non-alpha command */ + if (p == eap->cmd && vim_strchr((char_u *)"@*!=><&~#", *p) != NULL) + ++p; + len = (int)(p - eap->cmd); + if (*eap->cmd == 'd' && (p[-1] == 'l' || p[-1] == 'p')) { + /* Check for ":dl", ":dell", etc. to ":deletel": that's + * :delete with the 'l' flag. Same for 'p'. */ + for (i = 0; i < len; ++i) + if (eap->cmd[i] != ((char_u *)"delete")[i]) + break; + if (i == len - 1) { + --len; + if (p[-1] == 'l') + eap->flags |= EXFLAG_LIST; + else + eap->flags |= EXFLAG_PRINT; + } + } + + if (ASCII_ISLOWER(*eap->cmd)) + eap->cmdidx = cmdidxs[CharOrdLow(*eap->cmd)]; + else + eap->cmdidx = cmdidxs[26]; + + for (; (int)eap->cmdidx < (int)CMD_SIZE; + eap->cmdidx = (cmdidx_T)((int)eap->cmdidx + 1)) + if (STRNCMP(cmdnames[(int)eap->cmdidx].cmd_name, (char *)eap->cmd, + (size_t)len) == 0) { + if (full != NULL + && cmdnames[(int)eap->cmdidx].cmd_name[len] == NUL) + *full = TRUE; + break; + } + + /* Look for a user defined command as a last resort. Let ":Print" be + * overruled by a user defined command. */ + if ((eap->cmdidx == CMD_SIZE || eap->cmdidx == CMD_Print) + && *eap->cmd >= 'A' && *eap->cmd <= 'Z') { + /* User defined commands may contain digits. */ + while (ASCII_ISALNUM(*p)) + ++p; + p = find_ucmd(eap, p, full, NULL, NULL); + } + if (p == eap->cmd) + eap->cmdidx = CMD_SIZE; + } + + return p; +} + +/* + * Search for a user command that matches "eap->cmd". + * Return cmdidx in "eap->cmdidx", flags in "eap->argt", idx in "eap->useridx". + * Return a pointer to just after the command. + * Return NULL if there is no matching command. + */ +static char_u * +find_ucmd ( + exarg_T *eap, + char_u *p, /* end of the command (possibly including count) */ + int *full, /* set to TRUE for a full match */ + expand_T *xp, /* used for completion, NULL otherwise */ + int *compl /* completion flags or NULL */ +) +{ + int len = (int)(p - eap->cmd); + int j, k, matchlen = 0; + ucmd_T *uc; + int found = FALSE; + int possible = FALSE; + char_u *cp, *np; /* Point into typed cmd and test name */ + garray_T *gap; + int amb_local = FALSE; /* Found ambiguous buffer-local command, + only full match global is accepted. */ + + /* + * Look for buffer-local user commands first, then global ones. + */ + gap = &curbuf->b_ucmds; + for (;; ) { + for (j = 0; j < gap->ga_len; ++j) { + uc = USER_CMD_GA(gap, j); + cp = eap->cmd; + np = uc->uc_name; + k = 0; + while (k < len && *np != NUL && *cp++ == *np++) + k++; + if (k == len || (*np == NUL && vim_isdigit(eap->cmd[k]))) { + /* If finding a second match, the command is ambiguous. But + * not if a buffer-local command wasn't a full match and a + * global command is a full match. */ + if (k == len && found && *np != NUL) { + if (gap == &ucmds) + return NULL; + amb_local = TRUE; + } + + if (!found || (k == len && *np == NUL)) { + /* If we matched up to a digit, then there could + * be another command including the digit that we + * should use instead. + */ + if (k == len) + found = TRUE; + else + possible = TRUE; + + if (gap == &ucmds) + eap->cmdidx = CMD_USER; + else + eap->cmdidx = CMD_USER_BUF; + eap->argt = (long)uc->uc_argt; + eap->useridx = j; + + if (compl != NULL) + *compl = uc->uc_compl; + if (xp != NULL) { + xp->xp_arg = uc->uc_compl_arg; + xp->xp_scriptID = uc->uc_scriptID; + } + /* Do not search for further abbreviations + * if this is an exact match. */ + matchlen = k; + if (k == len && *np == NUL) { + if (full != NULL) + *full = TRUE; + amb_local = FALSE; + break; + } + } + } + } + + /* Stop if we found a full match or searched all. */ + if (j < gap->ga_len || gap == &ucmds) + break; + gap = &ucmds; + } + + /* Only found ambiguous matches. */ + if (amb_local) { + if (xp != NULL) + xp->xp_context = EXPAND_UNSUCCESSFUL; + return NULL; + } + + /* The match we found may be followed immediately by a number. Move "p" + * back to point to it. */ + if (found || possible) + return p + (matchlen - len); + return p; +} + +static struct cmdmod { + char *name; + int minlen; + int has_count; /* :123verbose :3tab */ +} cmdmods[] = { + {"aboveleft", 3, FALSE}, + {"belowright", 3, FALSE}, + {"botright", 2, FALSE}, + {"browse", 3, FALSE}, + {"confirm", 4, FALSE}, + {"hide", 3, FALSE}, + {"keepalt", 5, FALSE}, + {"keepjumps", 5, FALSE}, + {"keepmarks", 3, FALSE}, + {"keeppatterns", 5, FALSE}, + {"leftabove", 5, FALSE}, + {"lockmarks", 3, FALSE}, + {"noautocmd", 3, FALSE}, + {"noswapfile", 3, FALSE}, + {"rightbelow", 6, FALSE}, + {"sandbox", 3, FALSE}, + {"silent", 3, FALSE}, + {"tab", 3, TRUE}, + {"topleft", 2, FALSE}, + {"unsilent", 3, FALSE}, + {"verbose", 4, TRUE}, + {"vertical", 4, FALSE}, +}; + +/* + * Return length of a command modifier (including optional count). + * Return zero when it's not a modifier. + */ +int modifier_len(char_u *cmd) +{ + int i, j; + char_u *p = cmd; + + if (VIM_ISDIGIT(*cmd)) + p = skipwhite(skipdigits(cmd)); + for (i = 0; i < (int)(sizeof(cmdmods) / sizeof(struct cmdmod)); ++i) { + for (j = 0; p[j] != NUL; ++j) + if (p[j] != cmdmods[i].name[j]) + break; + if (!ASCII_ISALPHA(p[j]) && j >= cmdmods[i].minlen + && (p == cmd || cmdmods[i].has_count)) + return j + (int)(p - cmd); + } + return 0; +} + +/* + * Return > 0 if an Ex command "name" exists. + * Return 2 if there is an exact match. + * Return 3 if there is an ambiguous match. + */ +int cmd_exists(char_u *name) +{ + exarg_T ea; + int full = FALSE; + int i; + int j; + char_u *p; + + /* Check command modifiers. */ + for (i = 0; i < (int)(sizeof(cmdmods) / sizeof(struct cmdmod)); ++i) { + for (j = 0; name[j] != NUL; ++j) + if (name[j] != cmdmods[i].name[j]) + break; + if (name[j] == NUL && j >= cmdmods[i].minlen) + return cmdmods[i].name[j] == NUL ? 2 : 1; + } + + /* Check built-in commands and user defined commands. + * For ":2match" and ":3match" we need to skip the number. */ + ea.cmd = (*name == '2' || *name == '3') ? name + 1 : name; + ea.cmdidx = (cmdidx_T)0; + p = find_command(&ea, &full); + if (p == NULL) + return 3; + if (vim_isdigit(*name) && ea.cmdidx != CMD_match) + return 0; + if (*skipwhite(p) != NUL) + return 0; /* trailing garbage */ + return ea.cmdidx == CMD_SIZE ? 0 : (full ? 2 : 1); +} + +/* + * This is all pretty much copied from do_one_cmd(), with all the extra stuff + * we don't need/want deleted. Maybe this could be done better if we didn't + * repeat all this stuff. The only problem is that they may not stay + * perfectly compatible with each other, but then the command line syntax + * probably won't change that much -- webb. + */ +char_u * +set_one_cmd_context ( + expand_T *xp, + char_u *buff /* buffer for command string */ +) +{ + char_u *p; + char_u *cmd, *arg; + int len = 0; + exarg_T ea; + int compl = EXPAND_NOTHING; + int delim; + int forceit = FALSE; + int usefilter = FALSE; /* filter instead of file name */ + + ExpandInit(xp); + xp->xp_pattern = buff; + xp->xp_context = EXPAND_COMMANDS; /* Default until we get past command */ + ea.argt = 0; + + /* + * 2. skip comment lines and leading space, colons or bars + */ + for (cmd = buff; vim_strchr((char_u *)" \t:|", *cmd) != NULL; cmd++) + ; + xp->xp_pattern = cmd; + + if (*cmd == NUL) + return NULL; + if (*cmd == '"') { /* ignore comment lines */ + xp->xp_context = EXPAND_NOTHING; + return NULL; + } + + /* + * 3. parse a range specifier of the form: addr [,addr] [;addr] .. + */ + cmd = skip_range(cmd, &xp->xp_context); + + /* + * 4. parse command + */ + xp->xp_pattern = cmd; + if (*cmd == NUL) + return NULL; + if (*cmd == '"') { + xp->xp_context = EXPAND_NOTHING; + return NULL; + } + + if (*cmd == '|' || *cmd == '\n') + return cmd + 1; /* There's another command */ + + /* + * Isolate the command and search for it in the command table. + * Exceptions: + * - the 'k' command can directly be followed by any character, but + * do accept "keepmarks", "keepalt" and "keepjumps". + * - the 's' command can be followed directly by 'c', 'g', 'i', 'I' or 'r' + */ + if (*cmd == 'k' && cmd[1] != 'e') { + ea.cmdidx = CMD_k; + p = cmd + 1; + } else { + p = cmd; + while (ASCII_ISALPHA(*p) || *p == '*') /* Allow * wild card */ + ++p; + /* check for non-alpha command */ + if (p == cmd && vim_strchr((char_u *)"@*!=><&~#", *p) != NULL) + ++p; + /* for python 3.x: ":py3*" commands completion */ + if (cmd[0] == 'p' && cmd[1] == 'y' && p == cmd + 2 && *p == '3') { + ++p; + while (ASCII_ISALPHA(*p) || *p == '*') + ++p; + } + len = (int)(p - cmd); + + if (len == 0) { + xp->xp_context = EXPAND_UNSUCCESSFUL; + return NULL; + } + for (ea.cmdidx = (cmdidx_T)0; (int)ea.cmdidx < (int)CMD_SIZE; + ea.cmdidx = (cmdidx_T)((int)ea.cmdidx + 1)) + if (STRNCMP(cmdnames[(int)ea.cmdidx].cmd_name, cmd, + (size_t)len) == 0) + break; + + if (cmd[0] >= 'A' && cmd[0] <= 'Z') + while (ASCII_ISALNUM(*p) || *p == '*') /* Allow * wild card */ + ++p; + } + + /* + * If the cursor is touching the command, and it ends in an alpha-numeric + * character, complete the command name. + */ + if (*p == NUL && ASCII_ISALNUM(p[-1])) + return NULL; + + if (ea.cmdidx == CMD_SIZE) { + if (*cmd == 's' && vim_strchr((char_u *)"cgriI", cmd[1]) != NULL) { + ea.cmdidx = CMD_substitute; + p = cmd + 1; + } else if (cmd[0] >= 'A' && cmd[0] <= 'Z') { + ea.cmd = cmd; + p = find_ucmd(&ea, p, NULL, xp, + &compl + ); + if (p == NULL) + ea.cmdidx = CMD_SIZE; /* ambiguous user command */ + } + } + if (ea.cmdidx == CMD_SIZE) { + /* Not still touching the command and it was an illegal one */ + xp->xp_context = EXPAND_UNSUCCESSFUL; + return NULL; + } + + xp->xp_context = EXPAND_NOTHING; /* Default now that we're past command */ + + if (*p == '!') { /* forced commands */ + forceit = TRUE; + ++p; + } + + /* + * 5. parse arguments + */ + if (!USER_CMDIDX(ea.cmdidx)) + ea.argt = (long)cmdnames[(int)ea.cmdidx].cmd_argt; + + arg = skipwhite(p); + + if (ea.cmdidx == CMD_write || ea.cmdidx == CMD_update) { + if (*arg == '>') { /* append */ + if (*++arg == '>') + ++arg; + arg = skipwhite(arg); + } else if (*arg == '!' && ea.cmdidx == CMD_write) { /* :w !filter */ + ++arg; + usefilter = TRUE; + } + } + + if (ea.cmdidx == CMD_read) { + usefilter = forceit; /* :r! filter if forced */ + if (*arg == '!') { /* :r !filter */ + ++arg; + usefilter = TRUE; + } + } + + if (ea.cmdidx == CMD_lshift || ea.cmdidx == CMD_rshift) { + while (*arg == *cmd) /* allow any number of '>' or '<' */ + ++arg; + arg = skipwhite(arg); + } + + /* Does command allow "+command"? */ + if ((ea.argt & EDITCMD) && !usefilter && *arg == '+') { + /* Check if we're in the +command */ + p = arg + 1; + arg = skip_cmd_arg(arg, FALSE); + + /* Still touching the command after '+'? */ + if (*arg == NUL) + return p; + + /* Skip space(s) after +command to get to the real argument */ + arg = skipwhite(arg); + } + + /* + * Check for '|' to separate commands and '"' to start comments. + * Don't do this for ":read !cmd" and ":write !cmd". + */ + if ((ea.argt & TRLBAR) && !usefilter) { + p = arg; + /* ":redir @" is not the start of a comment */ + if (ea.cmdidx == CMD_redir && p[0] == '@' && p[1] == '"') + p += 2; + while (*p) { + if (*p == Ctrl_V) { + if (p[1] != NUL) + ++p; + } else if ( (*p == '"' && !(ea.argt & NOTRLCOM)) + || *p == '|' || *p == '\n') { + if (*(p - 1) != '\\') { + if (*p == '|' || *p == '\n') + return p + 1; + return NULL; /* It's a comment */ + } + } + mb_ptr_adv(p); + } + } + + /* no arguments allowed */ + if (!(ea.argt & EXTRA) && *arg != NUL && + vim_strchr((char_u *)"|\"", *arg) == NULL) + return NULL; + + /* Find start of last argument (argument just before cursor): */ + p = buff; + xp->xp_pattern = p; + len = (int)STRLEN(buff); + while (*p && p < buff + len) { + if (*p == ' ' || *p == TAB) { + /* argument starts after a space */ + xp->xp_pattern = ++p; + } else { + if (*p == '\\' && *(p + 1) != NUL) + ++p; /* skip over escaped character */ + mb_ptr_adv(p); + } + } + + if (ea.argt & XFILE) { + int c; + int in_quote = FALSE; + char_u *bow = NULL; /* Beginning of word */ + + /* + * Allow spaces within back-quotes to count as part of the argument + * being expanded. + */ + xp->xp_pattern = skipwhite(arg); + p = xp->xp_pattern; + while (*p != NUL) { + if (has_mbyte) + c = mb_ptr2char(p); + else + c = *p; + if (c == '\\' && p[1] != NUL) + ++p; + else if (c == '`') { + if (!in_quote) { + xp->xp_pattern = p; + bow = p + 1; + } + in_quote = !in_quote; + } + /* An argument can contain just about everything, except + * characters that end the command and white space. */ + else if (c == '|' || c == '\n' || c == '"' || (vim_iswhite(c) +#ifdef SPACE_IN_FILENAME + && (!(ea.argt & NOSPC) || + usefilter) +#endif + )) { + len = 0; /* avoid getting stuck when space is in 'isfname' */ + while (*p != NUL) { + if (has_mbyte) + c = mb_ptr2char(p); + else + c = *p; + if (c == '`' || vim_isfilec_or_wc(c)) + break; + if (has_mbyte) + len = (*mb_ptr2len)(p); + else + len = 1; + mb_ptr_adv(p); + } + if (in_quote) + bow = p; + else + xp->xp_pattern = p; + p -= len; + } + mb_ptr_adv(p); + } + + /* + * If we are still inside the quotes, and we passed a space, just + * expand from there. + */ + if (bow != NULL && in_quote) + xp->xp_pattern = bow; + xp->xp_context = EXPAND_FILES; + + /* For a shell command more chars need to be escaped. */ + if (usefilter || ea.cmdidx == CMD_bang) { +#ifndef BACKSLASH_IN_FILENAME + xp->xp_shell = TRUE; +#endif + /* When still after the command name expand executables. */ + if (xp->xp_pattern == skipwhite(arg)) + xp->xp_context = EXPAND_SHELLCMD; + } + + /* Check for environment variable */ + if (*xp->xp_pattern == '$' + ) { + for (p = xp->xp_pattern + 1; *p != NUL; ++p) + if (!vim_isIDc(*p)) + break; + if (*p == NUL) { + xp->xp_context = EXPAND_ENV_VARS; + ++xp->xp_pattern; + /* Avoid that the assignment uses EXPAND_FILES again. */ + if (compl != EXPAND_USER_DEFINED && compl != EXPAND_USER_LIST) + compl = EXPAND_ENV_VARS; + } + } + /* Check for user names */ + if (*xp->xp_pattern == '~') { + for (p = xp->xp_pattern + 1; *p != NUL && *p != '/'; ++p) + ; + /* Complete ~user only if it partially matches a user name. + * A full match ~user<Tab> will be replaced by user's home + * directory i.e. something like ~user<Tab> -> /home/user/ */ + if (*p == NUL && p > xp->xp_pattern + 1 + && match_user(xp->xp_pattern + 1) == 1) { + xp->xp_context = EXPAND_USER; + ++xp->xp_pattern; + } + } + } + + /* + * 6. switch on command name + */ + switch (ea.cmdidx) { + case CMD_find: + case CMD_sfind: + case CMD_tabfind: + if (xp->xp_context == EXPAND_FILES) + xp->xp_context = EXPAND_FILES_IN_PATH; + break; + case CMD_cd: + case CMD_chdir: + case CMD_lcd: + case CMD_lchdir: + if (xp->xp_context == EXPAND_FILES) + xp->xp_context = EXPAND_DIRECTORIES; + break; + case CMD_help: + xp->xp_context = EXPAND_HELP; + xp->xp_pattern = arg; + break; + + /* Command modifiers: return the argument. + * Also for commands with an argument that is a command. */ + case CMD_aboveleft: + case CMD_argdo: + case CMD_belowright: + case CMD_botright: + case CMD_browse: + case CMD_bufdo: + case CMD_confirm: + case CMD_debug: + case CMD_folddoclosed: + case CMD_folddoopen: + case CMD_hide: + case CMD_keepalt: + case CMD_keepjumps: + case CMD_keepmarks: + case CMD_keeppatterns: + case CMD_leftabove: + case CMD_lockmarks: + case CMD_noautocmd: + case CMD_noswapfile: + case CMD_rightbelow: + case CMD_sandbox: + case CMD_silent: + case CMD_tab: + case CMD_tabdo: + case CMD_topleft: + case CMD_verbose: + case CMD_vertical: + case CMD_windo: + return arg; + + case CMD_match: + if (*arg == NUL || !ends_excmd(*arg)) { + /* also complete "None" */ + set_context_in_echohl_cmd(xp, arg); + arg = skipwhite(skiptowhite(arg)); + if (*arg != NUL) { + xp->xp_context = EXPAND_NOTHING; + arg = skip_regexp(arg + 1, *arg, p_magic, NULL); + } + } + return find_nextcmd(arg); + + /* + * All completion for the +cmdline_compl feature goes here. + */ + + case CMD_command: + /* Check for attributes */ + while (*arg == '-') { + arg++; /* Skip "-" */ + p = skiptowhite(arg); + if (*p == NUL) { + /* Cursor is still in the attribute */ + p = vim_strchr(arg, '='); + if (p == NULL) { + /* No "=", so complete attribute names */ + xp->xp_context = EXPAND_USER_CMD_FLAGS; + xp->xp_pattern = arg; + return NULL; + } + + /* For the -complete and -nargs attributes, we complete + * their arguments as well. + */ + if (STRNICMP(arg, "complete", p - arg) == 0) { + xp->xp_context = EXPAND_USER_COMPLETE; + xp->xp_pattern = p + 1; + return NULL; + } else if (STRNICMP(arg, "nargs", p - arg) == 0) { + xp->xp_context = EXPAND_USER_NARGS; + xp->xp_pattern = p + 1; + return NULL; + } + return NULL; + } + arg = skipwhite(p); + } + + /* After the attributes comes the new command name */ + p = skiptowhite(arg); + if (*p == NUL) { + xp->xp_context = EXPAND_USER_COMMANDS; + xp->xp_pattern = arg; + break; + } + + /* And finally comes a normal command */ + return skipwhite(p); + + case CMD_delcommand: + xp->xp_context = EXPAND_USER_COMMANDS; + xp->xp_pattern = arg; + break; + + case CMD_global: + case CMD_vglobal: + delim = *arg; /* get the delimiter */ + if (delim) + ++arg; /* skip delimiter if there is one */ + + while (arg[0] != NUL && arg[0] != delim) { + if (arg[0] == '\\' && arg[1] != NUL) + ++arg; + ++arg; + } + if (arg[0] != NUL) + return arg + 1; + break; + case CMD_and: + case CMD_substitute: + delim = *arg; + if (delim) { + /* skip "from" part */ + ++arg; + arg = skip_regexp(arg, delim, p_magic, NULL); + } + /* skip "to" part */ + while (arg[0] != NUL && arg[0] != delim) { + if (arg[0] == '\\' && arg[1] != NUL) + ++arg; + ++arg; + } + if (arg[0] != NUL) /* skip delimiter */ + ++arg; + while (arg[0] && vim_strchr((char_u *)"|\"#", arg[0]) == NULL) + ++arg; + if (arg[0] != NUL) + return arg; + break; + case CMD_isearch: + case CMD_dsearch: + case CMD_ilist: + case CMD_dlist: + case CMD_ijump: + case CMD_psearch: + case CMD_djump: + case CMD_isplit: + case CMD_dsplit: + arg = skipwhite(skipdigits(arg)); /* skip count */ + if (*arg == '/') { /* Match regexp, not just whole words */ + for (++arg; *arg && *arg != '/'; arg++) + if (*arg == '\\' && arg[1] != NUL) + arg++; + if (*arg) { + arg = skipwhite(arg + 1); + + /* Check for trailing illegal characters */ + if (*arg && vim_strchr((char_u *)"|\"\n", *arg) == NULL) + xp->xp_context = EXPAND_NOTHING; + else + return arg; + } + } + break; + case CMD_autocmd: + return set_context_in_autocmd(xp, arg, FALSE); + + case CMD_doautocmd: + case CMD_doautoall: + return set_context_in_autocmd(xp, arg, TRUE); + case CMD_set: + set_context_in_set_cmd(xp, arg, 0); + break; + case CMD_setglobal: + set_context_in_set_cmd(xp, arg, OPT_GLOBAL); + break; + case CMD_setlocal: + set_context_in_set_cmd(xp, arg, OPT_LOCAL); + break; + case CMD_tag: + case CMD_stag: + case CMD_ptag: + case CMD_ltag: + case CMD_tselect: + case CMD_stselect: + case CMD_ptselect: + case CMD_tjump: + case CMD_stjump: + case CMD_ptjump: + if (*p_wop != NUL) + xp->xp_context = EXPAND_TAGS_LISTFILES; + else + xp->xp_context = EXPAND_TAGS; + xp->xp_pattern = arg; + break; + case CMD_augroup: + xp->xp_context = EXPAND_AUGROUP; + xp->xp_pattern = arg; + break; + case CMD_syntax: + set_context_in_syntax_cmd(xp, arg); + break; + case CMD_let: + case CMD_if: + case CMD_elseif: + case CMD_while: + case CMD_for: + case CMD_echo: + case CMD_echon: + case CMD_execute: + case CMD_echomsg: + case CMD_echoerr: + case CMD_call: + case CMD_return: + set_context_for_expression(xp, arg, ea.cmdidx); + break; + + case CMD_unlet: + while ((xp->xp_pattern = vim_strchr(arg, ' ')) != NULL) + arg = xp->xp_pattern + 1; + xp->xp_context = EXPAND_USER_VARS; + xp->xp_pattern = arg; + break; + + case CMD_function: + case CMD_delfunction: + xp->xp_context = EXPAND_USER_FUNC; + xp->xp_pattern = arg; + break; + + case CMD_echohl: + set_context_in_echohl_cmd(xp, arg); + break; + case CMD_highlight: + set_context_in_highlight_cmd(xp, arg); + break; + case CMD_cscope: + case CMD_lcscope: + case CMD_scscope: + set_context_in_cscope_cmd(xp, arg, ea.cmdidx); + break; + case CMD_sign: + set_context_in_sign_cmd(xp, arg); + break; + case CMD_bdelete: + case CMD_bwipeout: + case CMD_bunload: + while ((xp->xp_pattern = vim_strchr(arg, ' ')) != NULL) + arg = xp->xp_pattern + 1; + /*FALLTHROUGH*/ + case CMD_buffer: + case CMD_sbuffer: + case CMD_checktime: + xp->xp_context = EXPAND_BUFFERS; + xp->xp_pattern = arg; + break; + case CMD_USER: + case CMD_USER_BUF: + if (compl != EXPAND_NOTHING) { + /* XFILE: file names are handled above */ + if (!(ea.argt & XFILE)) { + if (compl == EXPAND_MENUS) + return set_context_in_menu_cmd(xp, cmd, arg, forceit); + if (compl == EXPAND_COMMANDS) + return arg; + if (compl == EXPAND_MAPPINGS) + return set_context_in_map_cmd(xp, (char_u *)"map", + arg, forceit, FALSE, FALSE, CMD_map); + /* Find start of last argument. */ + p = arg; + while (*p) { + if (*p == ' ') + /* argument starts after a space */ + arg = p + 1; + else if (*p == '\\' && *(p + 1) != NUL) + ++p; /* skip over escaped character */ + mb_ptr_adv(p); + } + xp->xp_pattern = arg; + } + xp->xp_context = compl; + } + break; + case CMD_map: case CMD_noremap: + case CMD_nmap: case CMD_nnoremap: + case CMD_vmap: case CMD_vnoremap: + case CMD_omap: case CMD_onoremap: + case CMD_imap: case CMD_inoremap: + case CMD_cmap: case CMD_cnoremap: + case CMD_lmap: case CMD_lnoremap: + case CMD_smap: case CMD_snoremap: + case CMD_xmap: case CMD_xnoremap: + return set_context_in_map_cmd(xp, cmd, arg, forceit, + FALSE, FALSE, ea.cmdidx); + case CMD_unmap: + case CMD_nunmap: + case CMD_vunmap: + case CMD_ounmap: + case CMD_iunmap: + case CMD_cunmap: + case CMD_lunmap: + case CMD_sunmap: + case CMD_xunmap: + return set_context_in_map_cmd(xp, cmd, arg, forceit, + FALSE, TRUE, ea.cmdidx); + case CMD_abbreviate: case CMD_noreabbrev: + case CMD_cabbrev: case CMD_cnoreabbrev: + case CMD_iabbrev: case CMD_inoreabbrev: + return set_context_in_map_cmd(xp, cmd, arg, forceit, + TRUE, FALSE, ea.cmdidx); + case CMD_unabbreviate: + case CMD_cunabbrev: + case CMD_iunabbrev: + return set_context_in_map_cmd(xp, cmd, arg, forceit, + TRUE, TRUE, ea.cmdidx); + case CMD_menu: case CMD_noremenu: case CMD_unmenu: + case CMD_amenu: case CMD_anoremenu: case CMD_aunmenu: + case CMD_nmenu: case CMD_nnoremenu: case CMD_nunmenu: + case CMD_vmenu: case CMD_vnoremenu: case CMD_vunmenu: + case CMD_omenu: case CMD_onoremenu: case CMD_ounmenu: + case CMD_imenu: case CMD_inoremenu: case CMD_iunmenu: + case CMD_cmenu: case CMD_cnoremenu: case CMD_cunmenu: + case CMD_tmenu: case CMD_tunmenu: + case CMD_popup: case CMD_tearoff: case CMD_emenu: + return set_context_in_menu_cmd(xp, cmd, arg, forceit); + + case CMD_colorscheme: + xp->xp_context = EXPAND_COLORS; + xp->xp_pattern = arg; + break; + + case CMD_compiler: + xp->xp_context = EXPAND_COMPILER; + xp->xp_pattern = arg; + break; + + case CMD_ownsyntax: + xp->xp_context = EXPAND_OWNSYNTAX; + xp->xp_pattern = arg; + break; + + case CMD_setfiletype: + xp->xp_context = EXPAND_FILETYPE; + xp->xp_pattern = arg; + break; + +#ifdef HAVE_WORKING_LIBINTL + case CMD_language: + p = skiptowhite(arg); + if (*p == NUL) { + xp->xp_context = EXPAND_LANGUAGE; + xp->xp_pattern = arg; + } else { + if ( STRNCMP(arg, "messages", p - arg) == 0 + || STRNCMP(arg, "ctype", p - arg) == 0 + || STRNCMP(arg, "time", p - arg) == 0) { + xp->xp_context = EXPAND_LOCALES; + xp->xp_pattern = skipwhite(p); + } else + xp->xp_context = EXPAND_NOTHING; + } + break; +#endif + case CMD_profile: + set_context_in_profile_cmd(xp, arg); + break; + case CMD_behave: + xp->xp_context = EXPAND_BEHAVE; + xp->xp_pattern = arg; + break; + + case CMD_history: + xp->xp_context = EXPAND_HISTORY; + xp->xp_pattern = arg; + break; + case CMD_syntime: + xp->xp_context = EXPAND_SYNTIME; + xp->xp_pattern = arg; + break; + + + default: + break; + } + return NULL; +} + +/* + * skip a range specifier of the form: addr [,addr] [;addr] .. + * + * Backslashed delimiters after / or ? will be skipped, and commands will + * not be expanded between /'s and ?'s or after "'". + * + * Also skip white space and ":" characters. + * Returns the "cmd" pointer advanced to beyond the range. + */ +char_u * +skip_range ( + char_u *cmd, + int *ctx /* pointer to xp_context or NULL */ +) +{ + unsigned delim; + + while (vim_strchr((char_u *)" \t0123456789.$%'/?-+,;", *cmd) != NULL) { + if (*cmd == '\'') { + if (*++cmd == NUL && ctx != NULL) + *ctx = EXPAND_NOTHING; + } else if (*cmd == '/' || *cmd == '?') { + delim = *cmd++; + while (*cmd != NUL && *cmd != delim) + if (*cmd++ == '\\' && *cmd != NUL) + ++cmd; + if (*cmd == NUL && ctx != NULL) + *ctx = EXPAND_NOTHING; + } + if (*cmd != NUL) + ++cmd; + } + + /* Skip ":" and white space. */ + while (*cmd == ':') + cmd = skipwhite(cmd + 1); + + return cmd; +} + +/* + * get a single EX address + * + * Set ptr to the next character after the part that was interpreted. + * Set ptr to NULL when an error is encountered. + * + * Return MAXLNUM when no Ex address was found. + */ +static linenr_T +get_address ( + char_u **ptr, + int skip, /* only skip the address, don't use it */ + int to_other_file /* flag: may jump to other file */ +) +{ + int c; + int i; + long n; + char_u *cmd; + pos_T pos; + pos_T *fp; + linenr_T lnum; + + cmd = skipwhite(*ptr); + lnum = MAXLNUM; + do { + switch (*cmd) { + case '.': /* '.' - Cursor position */ + ++cmd; + lnum = curwin->w_cursor.lnum; + break; + + case '$': /* '$' - last line */ + ++cmd; + lnum = curbuf->b_ml.ml_line_count; + break; + + case '\'': /* ''' - mark */ + if (*++cmd == NUL) { + cmd = NULL; + goto error; + } + if (skip) + ++cmd; + else { + /* Only accept a mark in another file when it is + * used by itself: ":'M". */ + fp = getmark(*cmd, to_other_file && cmd[1] == NUL); + ++cmd; + if (fp == (pos_T *)-1) + /* Jumped to another file. */ + lnum = curwin->w_cursor.lnum; + else { + if (check_mark(fp) == FAIL) { + cmd = NULL; + goto error; + } + lnum = fp->lnum; + } + } + break; + + case '/': + case '?': /* '/' or '?' - search */ + c = *cmd++; + if (skip) { /* skip "/pat/" */ + cmd = skip_regexp(cmd, c, (int)p_magic, NULL); + if (*cmd == c) + ++cmd; + } else { + pos = curwin->w_cursor; /* save curwin->w_cursor */ + /* + * When '/' or '?' follows another address, start + * from there. + */ + if (lnum != MAXLNUM) + curwin->w_cursor.lnum = lnum; + /* + * Start a forward search at the end of the line. + * Start a backward search at the start of the line. + * This makes sure we never match in the current + * line, and can match anywhere in the + * next/previous line. + */ + if (c == '/') + curwin->w_cursor.col = MAXCOL; + else + curwin->w_cursor.col = 0; + searchcmdlen = 0; + if (!do_search(NULL, c, cmd, 1L, + SEARCH_HIS | SEARCH_MSG, NULL)) { + curwin->w_cursor = pos; + cmd = NULL; + goto error; + } + lnum = curwin->w_cursor.lnum; + curwin->w_cursor = pos; + /* adjust command string pointer */ + cmd += searchcmdlen; + } + break; + + case '\\': /* "\?", "\/" or "\&", repeat search */ + ++cmd; + if (*cmd == '&') + i = RE_SUBST; + else if (*cmd == '?' || *cmd == '/') + i = RE_SEARCH; + else { + EMSG(_(e_backslash)); + cmd = NULL; + goto error; + } + + if (!skip) { + /* + * When search follows another address, start from + * there. + */ + if (lnum != MAXLNUM) + pos.lnum = lnum; + else + pos.lnum = curwin->w_cursor.lnum; + + /* + * Start the search just like for the above + * do_search(). + */ + if (*cmd != '?') + pos.col = MAXCOL; + else + pos.col = 0; + if (searchit(curwin, curbuf, &pos, + *cmd == '?' ? BACKWARD : FORWARD, + (char_u *)"", 1L, SEARCH_MSG, + i, (linenr_T)0, NULL) != FAIL) + lnum = pos.lnum; + else { + cmd = NULL; + goto error; + } + } + ++cmd; + break; + + default: + if (VIM_ISDIGIT(*cmd)) /* absolute line number */ + lnum = getdigits(&cmd); + } + + for (;; ) { + cmd = skipwhite(cmd); + if (*cmd != '-' && *cmd != '+' && !VIM_ISDIGIT(*cmd)) + break; + + if (lnum == MAXLNUM) + lnum = curwin->w_cursor.lnum; /* "+1" is same as ".+1" */ + if (VIM_ISDIGIT(*cmd)) + i = '+'; /* "number" is same as "+number" */ + else + i = *cmd++; + if (!VIM_ISDIGIT(*cmd)) /* '+' is '+1', but '+0' is not '+1' */ + n = 1; + else + n = getdigits(&cmd); + if (i == '-') + lnum -= n; + else + lnum += n; + } + } while (*cmd == '/' || *cmd == '?'); + +error: + *ptr = cmd; + return lnum; +} + +/* + * Get flags from an Ex command argument. + */ +static void get_flags(exarg_T *eap) +{ + while (vim_strchr((char_u *)"lp#", *eap->arg) != NULL) { + if (*eap->arg == 'l') + eap->flags |= EXFLAG_LIST; + else if (*eap->arg == 'p') + eap->flags |= EXFLAG_PRINT; + else + eap->flags |= EXFLAG_NR; + eap->arg = skipwhite(eap->arg + 1); + } +} + +/* + * Function called for command which is Not Implemented. NI! + */ +void ex_ni(exarg_T *eap) +{ + if (!eap->skip) + eap->errmsg = (char_u *)N_( + "E319: Sorry, the command is not available in this version"); +} + +#ifdef HAVE_EX_SCRIPT_NI +/* + * Function called for script command which is Not Implemented. NI! + * Skips over ":perl <<EOF" constructs. + */ +static void ex_script_ni(exarg_T *eap) +{ + if (!eap->skip) + ex_ni(eap); + else + free(script_get(eap, eap->arg)); +} +#endif + +/* + * Check range in Ex command for validity. + * Return NULL when valid, error message when invalid. + */ +static char_u *invalid_range(exarg_T *eap) +{ + if ( eap->line1 < 0 + || eap->line2 < 0 + || eap->line1 > eap->line2 + || ((eap->argt & RANGE) + && !(eap->argt & NOTADR) + && eap->line2 > curbuf->b_ml.ml_line_count + + (eap->cmdidx == CMD_diffget) + )) + return (char_u *)_(e_invrange); + return NULL; +} + +/* + * Correct the range for zero line number, if required. + */ +static void correct_range(exarg_T *eap) +{ + if (!(eap->argt & ZEROR)) { /* zero in range not allowed */ + if (eap->line1 == 0) + eap->line1 = 1; + if (eap->line2 == 0) + eap->line2 = 1; + } +} + +static char_u *skip_grep_pat(exarg_T *eap); + +/* + * For a ":vimgrep" or ":vimgrepadd" command return a pointer past the + * pattern. Otherwise return eap->arg. + */ +static char_u *skip_grep_pat(exarg_T *eap) +{ + char_u *p = eap->arg; + + if (*p != NUL && (eap->cmdidx == CMD_vimgrep || eap->cmdidx == CMD_lvimgrep + || eap->cmdidx == CMD_vimgrepadd + || eap->cmdidx == CMD_lvimgrepadd + || grep_internal(eap->cmdidx))) { + p = skip_vimgrep_pat(p, NULL, NULL); + if (p == NULL) + p = eap->arg; + } + return p; +} + +/* + * For the ":make" and ":grep" commands insert the 'makeprg'/'grepprg' option + * in the command line, so that things like % get expanded. + */ +static char_u *replace_makeprg(exarg_T *eap, char_u *p, char_u **cmdlinep) +{ + char_u *new_cmdline; + char_u *program; + char_u *pos; + char_u *ptr; + int len; + int i; + + /* + * Don't do it when ":vimgrep" is used for ":grep". + */ + if ((eap->cmdidx == CMD_make || eap->cmdidx == CMD_lmake + || eap->cmdidx == CMD_grep || eap->cmdidx == CMD_lgrep + || eap->cmdidx == CMD_grepadd + || eap->cmdidx == CMD_lgrepadd) + && !grep_internal(eap->cmdidx)) { + if (eap->cmdidx == CMD_grep || eap->cmdidx == CMD_lgrep + || eap->cmdidx == CMD_grepadd || eap->cmdidx == CMD_lgrepadd) { + if (*curbuf->b_p_gp == NUL) + program = p_gp; + else + program = curbuf->b_p_gp; + } else { + if (*curbuf->b_p_mp == NUL) + program = p_mp; + else + program = curbuf->b_p_mp; + } + + p = skipwhite(p); + + if ((pos = (char_u *)strstr((char *)program, "$*")) != NULL) { + /* replace $* by given arguments */ + i = 1; + while ((pos = (char_u *)strstr((char *)pos + 2, "$*")) != NULL) + ++i; + len = (int)STRLEN(p); + new_cmdline = xmalloc(STRLEN(program) + i * (len - 2) + 1); + ptr = new_cmdline; + while ((pos = (char_u *)strstr((char *)program, "$*")) != NULL) { + i = (int)(pos - program); + STRNCPY(ptr, program, i); + STRCPY(ptr += i, p); + ptr += len; + program = pos + 2; + } + STRCPY(ptr, program); + } else { + new_cmdline = xmalloc(STRLEN(program) + STRLEN(p) + 2); + STRCPY(new_cmdline, program); + STRCAT(new_cmdline, " "); + STRCAT(new_cmdline, p); + } + msg_make(p); + + /* 'eap->cmd' is not set here, because it is not used at CMD_make */ + free(*cmdlinep); + *cmdlinep = new_cmdline; + p = new_cmdline; + } + return p; +} + +/* + * Expand file name in Ex command argument. + * Return FAIL for failure, OK otherwise. + */ +int expand_filename(exarg_T *eap, char_u **cmdlinep, char_u **errormsgp) +{ + int has_wildcards; /* need to expand wildcards */ + char_u *repl; + int srclen; + char_u *p; + int escaped; + + /* Skip a regexp pattern for ":vimgrep[add] pat file..." */ + p = skip_grep_pat(eap); + + /* + * Decide to expand wildcards *before* replacing '%', '#', etc. If + * the file name contains a wildcard it should not cause expanding. + * (it will be expanded anyway if there is a wildcard before replacing). + */ + has_wildcards = mch_has_wildcard(p); + while (*p != NUL) { + /* Skip over `=expr`, wildcards in it are not expanded. */ + if (p[0] == '`' && p[1] == '=') { + p += 2; + (void)skip_expr(&p); + if (*p == '`') + ++p; + continue; + } + /* + * Quick check if this cannot be the start of a special string. + * Also removes backslash before '%', '#' and '<'. + */ + if (vim_strchr((char_u *)"%#<", *p) == NULL) { + ++p; + continue; + } + + /* + * Try to find a match at this position. + */ + repl = eval_vars(p, eap->arg, &srclen, &(eap->do_ecmd_lnum), + errormsgp, &escaped); + if (*errormsgp != NULL) /* error detected */ + return FAIL; + if (repl == NULL) { /* no match found */ + p += srclen; + continue; + } + + /* Wildcards won't be expanded below, the replacement is taken + * literally. But do expand "~/file", "~user/file" and "$HOME/file". */ + if (vim_strchr(repl, '$') != NULL || vim_strchr(repl, '~') != NULL) { + char_u *l = repl; + + repl = expand_env_save(repl); + free(l); + } + + /* Need to escape white space et al. with a backslash. + * Don't do this for: + * - replacement that already has been escaped: "##" + * - shell commands (may have to use quotes instead). + * - non-unix systems when there is a single argument (spaces don't + * separate arguments then). + */ + if (!eap->usefilter + && !escaped + && eap->cmdidx != CMD_bang + && eap->cmdidx != CMD_make + && eap->cmdidx != CMD_lmake + && eap->cmdidx != CMD_grep + && eap->cmdidx != CMD_lgrep + && eap->cmdidx != CMD_grepadd + && eap->cmdidx != CMD_lgrepadd +#ifndef UNIX + && !(eap->argt & NOSPC) +#endif + ) { + char_u *l; +#ifdef BACKSLASH_IN_FILENAME + /* Don't escape a backslash here, because rem_backslash() doesn't + * remove it later. */ + static char_u *nobslash = (char_u *)" \t\"|"; +# define ESCAPE_CHARS nobslash +#else +# define ESCAPE_CHARS escape_chars +#endif + + for (l = repl; *l; ++l) + if (vim_strchr(ESCAPE_CHARS, *l) != NULL) { + l = vim_strsave_escaped(repl, ESCAPE_CHARS); + if (l != NULL) { + free(repl); + repl = l; + } + break; + } + } + + /* For a shell command a '!' must be escaped. */ + if ((eap->usefilter || eap->cmdidx == CMD_bang) + && vim_strpbrk(repl, (char_u *)"!") != NULL) { + char_u *l; + + l = vim_strsave_escaped(repl, (char_u *)"!"); + if (l != NULL) { + free(repl); + repl = l; + } + } + + p = repl_cmdline(eap, p, srclen, repl, cmdlinep); + free(repl); + } + + /* + * One file argument: Expand wildcards. + * Don't do this with ":r !command" or ":w !command". + */ + if ((eap->argt & NOSPC) && !eap->usefilter) { + // Replace environment variables. + if (has_wildcards) { + /* + * May expand environment variables. This + * can be done much faster with expand_env() than with + * something else (e.g., calling a shell). + * After expanding environment variables, check again + * if there are still wildcards present. + */ + if (vim_strchr(eap->arg, '$') != NULL + || vim_strchr(eap->arg, '~') != NULL) { + expand_env_esc(eap->arg, NameBuff, MAXPATHL, + TRUE, TRUE, NULL); + has_wildcards = mch_has_wildcard(NameBuff); + p = NameBuff; + } else + p = NULL; + if (p != NULL) { + (void)repl_cmdline(eap, eap->arg, (int)STRLEN(eap->arg), + p, cmdlinep); + } + } + + // Replace any other wildcards, remove backslashes. +#ifdef UNIX + /* + * Only for Unix we check for more than one file name. + * For other systems spaces are considered to be part + * of the file name. + * Only check here if there is no wildcard, otherwise + * ExpandOne() will check for errors. This allows + * ":e `ls ve*.c`" on Unix. + */ + if (!has_wildcards) + for (p = eap->arg; *p; ++p) { + /* skip escaped characters */ + if (p[1] && (*p == '\\' || *p == Ctrl_V)) + ++p; + else if (vim_iswhite(*p)) { + *errormsgp = (char_u *)_("E172: Only one file name allowed"); + return FAIL; + } + } +#endif + + /* + * Halve the number of backslashes (this is Vi compatible). + * For Unix, when wildcards are expanded, this is + * done by ExpandOne() below. + */ +#ifdef UNIX + if (!has_wildcards) +#endif + backslash_halve(eap->arg); + + if (has_wildcards) { + expand_T xpc; + int options = WILD_LIST_NOTFOUND|WILD_ADD_SLASH; + + ExpandInit(&xpc); + xpc.xp_context = EXPAND_FILES; + if (p_wic) + options += WILD_ICASE; + p = ExpandOne(&xpc, eap->arg, NULL, + options, WILD_EXPAND_FREE); + if (p == NULL) + return FAIL; + if (p != NULL) { + (void)repl_cmdline(eap, eap->arg, (int)STRLEN(eap->arg), + p, cmdlinep); + free(p); + } + } + } + return OK; +} + +/* + * Replace part of the command line, keeping eap->cmd, eap->arg and + * eap->nextcmd correct. + * "src" points to the part that is to be replaced, of length "srclen". + * "repl" is the replacement string. + * Returns a pointer to the character after the replaced string. + */ +static char_u *repl_cmdline(exarg_T *eap, char_u *src, int srclen, char_u *repl, char_u **cmdlinep) +{ + int len; + int i; + char_u *new_cmdline; + + /* + * The new command line is build in new_cmdline[]. + * First allocate it. + * Careful: a "+cmd" argument may have been NUL terminated. + */ + len = (int)STRLEN(repl); + i = (int)(src - *cmdlinep) + (int)STRLEN(src + srclen) + len + 3; + if (eap->nextcmd != NULL) + i += (int)STRLEN(eap->nextcmd); /* add space for next command */ + new_cmdline = xmalloc(i); + + /* + * Copy the stuff before the expanded part. + * Copy the expanded stuff. + * Copy what came after the expanded part. + * Copy the next commands, if there are any. + */ + i = (int)(src - *cmdlinep); /* length of part before match */ + memmove(new_cmdline, *cmdlinep, (size_t)i); + + memmove(new_cmdline + i, repl, (size_t)len); + i += len; /* remember the end of the string */ + STRCPY(new_cmdline + i, src + srclen); + src = new_cmdline + i; /* remember where to continue */ + + if (eap->nextcmd != NULL) { /* append next command */ + i = (int)STRLEN(new_cmdline) + 1; + STRCPY(new_cmdline + i, eap->nextcmd); + eap->nextcmd = new_cmdline + i; + } + eap->cmd = new_cmdline + (eap->cmd - *cmdlinep); + eap->arg = new_cmdline + (eap->arg - *cmdlinep); + if (eap->do_ecmd_cmd != NULL && eap->do_ecmd_cmd != dollar_command) + eap->do_ecmd_cmd = new_cmdline + (eap->do_ecmd_cmd - *cmdlinep); + free(*cmdlinep); + *cmdlinep = new_cmdline; + + return src; +} + +/* + * Check for '|' to separate commands and '"' to start comments. + */ +void separate_nextcmd(exarg_T *eap) +{ + char_u *p; + + p = skip_grep_pat(eap); + + for (; *p; mb_ptr_adv(p)) { + if (*p == Ctrl_V) { + if (eap->argt & (USECTRLV | XFILE)) + ++p; /* skip CTRL-V and next char */ + else + /* remove CTRL-V and skip next char */ + STRMOVE(p, p + 1); + if (*p == NUL) /* stop at NUL after CTRL-V */ + break; + } + /* Skip over `=expr` when wildcards are expanded. */ + else if (p[0] == '`' && p[1] == '=' && (eap->argt & XFILE)) { + p += 2; + (void)skip_expr(&p); + } + /* Check for '"': start of comment or '|': next command */ + /* :@" and :*" do not start a comment! + * :redir @" doesn't either. */ + else if ((*p == '"' && !(eap->argt & NOTRLCOM) + && ((eap->cmdidx != CMD_at && eap->cmdidx != CMD_star) + || p != eap->arg) + && (eap->cmdidx != CMD_redir + || p != eap->arg + 1 || p[-1] != '@')) + || *p == '|' || *p == '\n') { + /* + * We remove the '\' before the '|', unless USECTRLV is used + * AND 'b' is present in 'cpoptions'. + */ + if ((vim_strchr(p_cpo, CPO_BAR) == NULL + || !(eap->argt & USECTRLV)) && *(p - 1) == '\\') { + STRMOVE(p - 1, p); /* remove the '\' */ + --p; + } else { + eap->nextcmd = check_nextcmd(p); + *p = NUL; + break; + } + } + } + + if (!(eap->argt & NOTRLCOM)) /* remove trailing spaces */ + del_trailing_spaces(eap->arg); +} + +/* + * get + command from ex argument + */ +static char_u *getargcmd(char_u **argp) +{ + char_u *arg = *argp; + char_u *command = NULL; + + if (*arg == '+') { /* +[command] */ + ++arg; + if (vim_isspace(*arg) || *arg == '\0') + command = dollar_command; + else { + command = arg; + arg = skip_cmd_arg(command, TRUE); + if (*arg != NUL) + *arg++ = NUL; /* terminate command with NUL */ + } + + arg = skipwhite(arg); /* skip over spaces */ + *argp = arg; + } + return command; +} + +/* + * Find end of "+command" argument. Skip over "\ " and "\\". + */ +static char_u * +skip_cmd_arg ( + char_u *p, + int rembs /* TRUE to halve the number of backslashes */ +) +{ + while (*p && !vim_isspace(*p)) { + if (*p == '\\' && p[1] != NUL) { + if (rembs) + STRMOVE(p, p + 1); + else + ++p; + } + mb_ptr_adv(p); + } + return p; +} + +/* + * Get "++opt=arg" argument. + * Return FAIL or OK. + */ +static int getargopt(exarg_T *eap) +{ + char_u *arg = eap->arg + 2; + int *pp = NULL; + int bad_char_idx; + char_u *p; + + /* ":edit ++[no]bin[ary] file" */ + if (STRNCMP(arg, "bin", 3) == 0 || STRNCMP(arg, "nobin", 5) == 0) { + if (*arg == 'n') { + arg += 2; + eap->force_bin = FORCE_NOBIN; + } else + eap->force_bin = FORCE_BIN; + if (!checkforcmd(&arg, "binary", 3)) + return FAIL; + eap->arg = skipwhite(arg); + return OK; + } + + /* ":read ++edit file" */ + if (STRNCMP(arg, "edit", 4) == 0) { + eap->read_edit = TRUE; + eap->arg = skipwhite(arg + 4); + return OK; + } + + if (STRNCMP(arg, "ff", 2) == 0) { + arg += 2; + pp = &eap->force_ff; + } else if (STRNCMP(arg, "fileformat", 10) == 0) { + arg += 10; + pp = &eap->force_ff; + } else if (STRNCMP(arg, "enc", 3) == 0) { + if (STRNCMP(arg, "encoding", 8) == 0) + arg += 8; + else + arg += 3; + pp = &eap->force_enc; + } else if (STRNCMP(arg, "bad", 3) == 0) { + arg += 3; + pp = &bad_char_idx; + } + + if (pp == NULL || *arg != '=') + return FAIL; + + ++arg; + *pp = (int)(arg - eap->cmd); + arg = skip_cmd_arg(arg, FALSE); + eap->arg = skipwhite(arg); + *arg = NUL; + + if (pp == &eap->force_ff) { + if (check_ff_value(eap->cmd + eap->force_ff) == FAIL) + return FAIL; + } else if (pp == &eap->force_enc) { + /* Make 'fileencoding' lower case. */ + for (p = eap->cmd + eap->force_enc; *p != NUL; ++p) + *p = TOLOWER_ASC(*p); + } else { + /* Check ++bad= argument. Must be a single-byte character, "keep" or + * "drop". */ + p = eap->cmd + bad_char_idx; + if (STRICMP(p, "keep") == 0) + eap->bad_char = BAD_KEEP; + else if (STRICMP(p, "drop") == 0) + eap->bad_char = BAD_DROP; + else if (MB_BYTE2LEN(*p) == 1 && p[1] == NUL) + eap->bad_char = *p; + else + return FAIL; + } + + return OK; +} + +/* + * ":abbreviate" and friends. + */ +static void ex_abbreviate(exarg_T *eap) +{ + do_exmap(eap, TRUE); /* almost the same as mapping */ +} + +/* + * ":map" and friends. + */ +static void ex_map(exarg_T *eap) +{ + /* + * If we are sourcing .exrc or .vimrc in current directory we + * print the mappings for security reasons. + */ + if (secure) { + secure = 2; + msg_outtrans(eap->cmd); + msg_putchar('\n'); + } + do_exmap(eap, FALSE); +} + +/* + * ":unmap" and friends. + */ +static void ex_unmap(exarg_T *eap) +{ + do_exmap(eap, FALSE); +} + +/* + * ":mapclear" and friends. + */ +static void ex_mapclear(exarg_T *eap) +{ + map_clear(eap->cmd, eap->arg, eap->forceit, FALSE); +} + +/* + * ":abclear" and friends. + */ +static void ex_abclear(exarg_T *eap) +{ + map_clear(eap->cmd, eap->arg, TRUE, TRUE); +} + +static void ex_autocmd(exarg_T *eap) +{ + /* + * Disallow auto commands from .exrc and .vimrc in current + * directory for security reasons. + */ + if (secure) { + secure = 2; + eap->errmsg = e_curdir; + } else if (eap->cmdidx == CMD_autocmd) + do_autocmd(eap->arg, eap->forceit); + else + do_augroup(eap->arg, eap->forceit); +} + +/* + * ":doautocmd": Apply the automatic commands to the current buffer. + */ +static void ex_doautocmd(exarg_T *eap) +{ + char_u *arg = eap->arg; + int call_do_modelines = check_nomodeline(&arg); + + (void)do_doautocmd(arg, TRUE); + if (call_do_modelines) /* Only when there is no <nomodeline>. */ + do_modelines(0); +} + +/* + * :[N]bunload[!] [N] [bufname] unload buffer + * :[N]bdelete[!] [N] [bufname] delete buffer from buffer list + * :[N]bwipeout[!] [N] [bufname] delete buffer really + */ +static void ex_bunload(exarg_T *eap) +{ + eap->errmsg = do_bufdel( + eap->cmdidx == CMD_bdelete ? DOBUF_DEL + : eap->cmdidx == CMD_bwipeout ? DOBUF_WIPE + : DOBUF_UNLOAD, eap->arg, + eap->addr_count, (int)eap->line1, (int)eap->line2, eap->forceit); +} + +/* + * :[N]buffer [N] to buffer N + * :[N]sbuffer [N] to buffer N + */ +static void ex_buffer(exarg_T *eap) +{ + if (*eap->arg) + eap->errmsg = e_trailing; + else { + if (eap->addr_count == 0) /* default is current buffer */ + goto_buffer(eap, DOBUF_CURRENT, FORWARD, 0); + else + goto_buffer(eap, DOBUF_FIRST, FORWARD, (int)eap->line2); + } +} + +/* + * :[N]bmodified [N] to next mod. buffer + * :[N]sbmodified [N] to next mod. buffer + */ +static void ex_bmodified(exarg_T *eap) +{ + goto_buffer(eap, DOBUF_MOD, FORWARD, (int)eap->line2); +} + +/* + * :[N]bnext [N] to next buffer + * :[N]sbnext [N] split and to next buffer + */ +static void ex_bnext(exarg_T *eap) +{ + goto_buffer(eap, DOBUF_CURRENT, FORWARD, (int)eap->line2); +} + +/* + * :[N]bNext [N] to previous buffer + * :[N]bprevious [N] to previous buffer + * :[N]sbNext [N] split and to previous buffer + * :[N]sbprevious [N] split and to previous buffer + */ +static void ex_bprevious(exarg_T *eap) +{ + goto_buffer(eap, DOBUF_CURRENT, BACKWARD, (int)eap->line2); +} + +/* + * :brewind to first buffer + * :bfirst to first buffer + * :sbrewind split and to first buffer + * :sbfirst split and to first buffer + */ +static void ex_brewind(exarg_T *eap) +{ + goto_buffer(eap, DOBUF_FIRST, FORWARD, 0); +} + +/* + * :blast to last buffer + * :sblast split and to last buffer + */ +static void ex_blast(exarg_T *eap) +{ + goto_buffer(eap, DOBUF_LAST, BACKWARD, 0); +} + +int ends_excmd(int c) +{ + return c == NUL || c == '|' || c == '"' || c == '\n'; +} + +#if defined(FEAT_SYN_HL) || defined(FEAT_SEARCH_EXTRA) || defined(FEAT_EVAL) \ + || defined(PROTO) +/* + * Return the next command, after the first '|' or '\n'. + * Return NULL if not found. + */ +char_u *find_nextcmd(char_u *p) +{ + while (*p != '|' && *p != '\n') { + if (*p == NUL) + return NULL; + ++p; + } + return p + 1; +} +#endif + +/* + * Check if *p is a separator between Ex commands. + * Return NULL if it isn't, (p + 1) if it is. + */ +char_u *check_nextcmd(char_u *p) +{ + p = skipwhite(p); + if (*p == '|' || *p == '\n') + return p + 1; + else + return NULL; +} + +/* + * - if there are more files to edit + * - and this is the last window + * - and forceit not used + * - and not repeated twice on a row + * return FAIL and give error message if 'message' TRUE + * return OK otherwise + */ +static int +check_more ( + int message, /* when FALSE check only, no messages */ + int forceit +) +{ + int n = ARGCOUNT - curwin->w_arg_idx - 1; + + if (!forceit && only_one_window() + && ARGCOUNT > 1 && !arg_had_last && n >= 0 && quitmore == 0) { + if (message) { + if ((p_confirm || cmdmod.confirm) && curbuf->b_fname != NULL) { + char_u buff[DIALOG_MSG_SIZE]; + + if (n == 1) + vim_strncpy(buff, + (char_u *)_("1 more file to edit. Quit anyway?"), + DIALOG_MSG_SIZE - 1); + else + vim_snprintf((char *)buff, DIALOG_MSG_SIZE, + _("%d more files to edit. Quit anyway?"), n); + if (vim_dialog_yesno(VIM_QUESTION, NULL, buff, 1) == VIM_YES) + return OK; + return FAIL; + } + if (n == 1) + EMSG(_("E173: 1 more file to edit")); + else + EMSGN(_("E173: %" PRId64 " more files to edit"), n); + quitmore = 2; /* next try to quit is allowed */ + } + return FAIL; + } + return OK; +} + +/* + * Function given to ExpandGeneric() to obtain the list of command names. + */ +char_u *get_command_name(expand_T *xp, int idx) +{ + if (idx >= (int)CMD_SIZE) + return get_user_command_name(idx); + return cmdnames[idx].cmd_name; +} + +static int uc_add_command(char_u *name, size_t name_len, char_u *rep, + long argt, long def, int flags, int compl, + char_u *compl_arg, + int force); +static void uc_list(char_u *name, size_t name_len); +static int uc_scan_attr(char_u *attr, size_t len, long *argt, long *def, + int *flags, int *compl, + char_u **compl_arg); +static char_u *uc_split_args(char_u *arg, size_t *lenp); +static size_t uc_check_code(char_u *code, size_t len, char_u *buf, + ucmd_T *cmd, exarg_T *eap, char_u **split_buf, + size_t *split_len); + +static int uc_add_command(char_u *name, size_t name_len, char_u *rep, long argt, long def, int flags, int compl, char_u *compl_arg, int force) +{ + ucmd_T *cmd = NULL; + char_u *p; + int i; + int cmp = 1; + char_u *rep_buf = NULL; + garray_T *gap; + + replace_termcodes(rep, &rep_buf, FALSE, FALSE, FALSE); + if (rep_buf == NULL) { + /* Can't replace termcodes - try using the string as is */ + rep_buf = vim_strsave(rep); + + /* Give up if out of memory */ + if (rep_buf == NULL) + return FAIL; + } + + /* get address of growarray: global or in curbuf */ + if (flags & UC_BUFFER) { + gap = &curbuf->b_ucmds; + if (gap->ga_itemsize == 0) + ga_init(gap, (int)sizeof(ucmd_T), 4); + } else + gap = &ucmds; + + /* Search for the command in the already defined commands. */ + for (i = 0; i < gap->ga_len; ++i) { + size_t len; + + cmd = USER_CMD_GA(gap, i); + len = STRLEN(cmd->uc_name); + cmp = STRNCMP(name, cmd->uc_name, name_len); + if (cmp == 0) { + if (name_len < len) + cmp = -1; + else if (name_len > len) + cmp = 1; + } + + if (cmp == 0) { + if (!force) { + EMSG(_("E174: Command already exists: add ! to replace it")); + goto fail; + } + + free(cmd->uc_rep); + cmd->uc_rep = NULL; + free(cmd->uc_compl_arg); + cmd->uc_compl_arg = NULL; + break; + } + + /* Stop as soon as we pass the name to add */ + if (cmp < 0) + break; + } + + /* Extend the array unless we're replacing an existing command */ + if (cmp != 0) { + ga_grow(gap, 1); + + if ((p = vim_strnsave(name, (int)name_len)) == NULL) + goto fail; + + cmd = USER_CMD_GA(gap, i); + memmove(cmd + 1, cmd, (gap->ga_len - i) * sizeof(ucmd_T)); + + ++gap->ga_len; + + cmd->uc_name = p; + } + + cmd->uc_rep = rep_buf; + cmd->uc_argt = argt; + cmd->uc_def = def; + cmd->uc_compl = compl; + cmd->uc_scriptID = current_SID; + cmd->uc_compl_arg = compl_arg; + + return OK; + +fail: + free(rep_buf); + free(compl_arg); + return FAIL; +} + +/* + * List of names for completion for ":command" with the EXPAND_ flag. + * Must be alphabetical for completion. + */ +static struct { + int expand; + char *name; +} command_complete[] = +{ + {EXPAND_AUGROUP, "augroup"}, + {EXPAND_BEHAVE, "behave"}, + {EXPAND_BUFFERS, "buffer"}, + {EXPAND_COLORS, "color"}, + {EXPAND_COMMANDS, "command"}, + {EXPAND_COMPILER, "compiler"}, + {EXPAND_CSCOPE, "cscope"}, + {EXPAND_USER_DEFINED, "custom"}, + {EXPAND_USER_LIST, "customlist"}, + {EXPAND_DIRECTORIES, "dir"}, + {EXPAND_ENV_VARS, "environment"}, + {EXPAND_EVENTS, "event"}, + {EXPAND_EXPRESSION, "expression"}, + {EXPAND_FILES, "file"}, + {EXPAND_FILES_IN_PATH, "file_in_path"}, + {EXPAND_FILETYPE, "filetype"}, + {EXPAND_FUNCTIONS, "function"}, + {EXPAND_HELP, "help"}, + {EXPAND_HIGHLIGHT, "highlight"}, + {EXPAND_HISTORY, "history"}, +#ifdef HAVE_WORKING_LIBINTL + {EXPAND_LOCALES, "locale"}, +#endif + {EXPAND_MAPPINGS, "mapping"}, + {EXPAND_MENUS, "menu"}, + {EXPAND_OWNSYNTAX, "syntax"}, + {EXPAND_SYNTIME, "syntime"}, + {EXPAND_SETTINGS, "option"}, + {EXPAND_SHELLCMD, "shellcmd"}, + {EXPAND_SIGN, "sign"}, + {EXPAND_TAGS, "tag"}, + {EXPAND_TAGS_LISTFILES, "tag_listfiles"}, + {EXPAND_USER, "user"}, + {EXPAND_USER_VARS, "var"}, + {0, NULL} +}; + +static void uc_list(char_u *name, size_t name_len) +{ + int i, j; + int found = FALSE; + ucmd_T *cmd; + int len; + long a; + garray_T *gap; + + gap = &curbuf->b_ucmds; + for (;; ) { + for (i = 0; i < gap->ga_len; ++i) { + cmd = USER_CMD_GA(gap, i); + a = (long)cmd->uc_argt; + + /* Skip commands which don't match the requested prefix */ + if (STRNCMP(name, cmd->uc_name, name_len) != 0) + continue; + + /* Put out the title first time */ + if (!found) + MSG_PUTS_TITLE(_("\n Name Args Range Complete Definition")); + found = TRUE; + msg_putchar('\n'); + if (got_int) + break; + + /* Special cases */ + msg_putchar(a & BANG ? '!' : ' '); + msg_putchar(a & REGSTR ? '"' : ' '); + msg_putchar(gap != &ucmds ? 'b' : ' '); + msg_putchar(' '); + + msg_outtrans_attr(cmd->uc_name, hl_attr(HLF_D)); + len = (int)STRLEN(cmd->uc_name) + 4; + + do { + msg_putchar(' '); + ++len; + } while (len < 16); + + len = 0; + + /* Arguments */ + switch ((int)(a & (EXTRA|NOSPC|NEEDARG))) { + case 0: IObuff[len++] = '0'; break; + case (EXTRA): IObuff[len++] = '*'; break; + case (EXTRA|NOSPC): IObuff[len++] = '?'; break; + case (EXTRA|NEEDARG): IObuff[len++] = '+'; break; + case (EXTRA|NOSPC|NEEDARG): IObuff[len++] = '1'; break; + } + + do { + IObuff[len++] = ' '; + } while (len < 5); + + /* Range */ + if (a & (RANGE|COUNT)) { + if (a & COUNT) { + /* -count=N */ + sprintf((char *)IObuff + len, "%" PRId64 "c", (int64_t)cmd->uc_def); + len += (int)STRLEN(IObuff + len); + } else if (a & DFLALL) + IObuff[len++] = '%'; + else if (cmd->uc_def >= 0) { + /* -range=N */ + sprintf((char *)IObuff + len, "%" PRId64 "", (int64_t)cmd->uc_def); + len += (int)STRLEN(IObuff + len); + } else + IObuff[len++] = '.'; + } + + do { + IObuff[len++] = ' '; + } while (len < 11); + + /* Completion */ + for (j = 0; command_complete[j].expand != 0; ++j) + if (command_complete[j].expand == cmd->uc_compl) { + STRCPY(IObuff + len, command_complete[j].name); + len += (int)STRLEN(IObuff + len); + break; + } + + do { + IObuff[len++] = ' '; + } while (len < 21); + + IObuff[len] = '\0'; + msg_outtrans(IObuff); + + msg_outtrans_special(cmd->uc_rep, FALSE); + if (p_verbose > 0) + last_set_msg(cmd->uc_scriptID); + out_flush(); + ui_breakcheck(); + if (got_int) + break; + } + if (gap == &ucmds || i < gap->ga_len) + break; + gap = &ucmds; + } + + if (!found) + MSG(_("No user-defined commands found")); +} + +static char_u *uc_fun_cmd(void) +{ + static char_u fcmd[] = {0x84, 0xaf, 0x60, 0xb9, 0xaf, 0xb5, 0x60, 0xa4, + 0xa5, 0xad, 0xa1, 0xae, 0xa4, 0x60, 0xa1, 0x60, + 0xb3, 0xa8, 0xb2, 0xb5, 0xa2, 0xa2, 0xa5, 0xb2, + 0xb9, 0x7f, 0}; + int i; + + for (i = 0; fcmd[i]; ++i) + IObuff[i] = fcmd[i] - 0x40; + IObuff[i] = 0; + return IObuff; +} + +static int uc_scan_attr(char_u *attr, size_t len, long *argt, long *def, int *flags, int *compl, char_u **compl_arg) +{ + char_u *p; + + if (len == 0) { + EMSG(_("E175: No attribute specified")); + return FAIL; + } + + /* First, try the simple attributes (no arguments) */ + if (STRNICMP(attr, "bang", len) == 0) + *argt |= BANG; + else if (STRNICMP(attr, "buffer", len) == 0) + *flags |= UC_BUFFER; + else if (STRNICMP(attr, "register", len) == 0) + *argt |= REGSTR; + else if (STRNICMP(attr, "bar", len) == 0) + *argt |= TRLBAR; + else { + int i; + char_u *val = NULL; + size_t vallen = 0; + size_t attrlen = len; + + /* Look for the attribute name - which is the part before any '=' */ + for (i = 0; i < (int)len; ++i) { + if (attr[i] == '=') { + val = &attr[i + 1]; + vallen = len - i - 1; + attrlen = i; + break; + } + } + + if (STRNICMP(attr, "nargs", attrlen) == 0) { + if (vallen == 1) { + if (*val == '0') + /* Do nothing - this is the default */; + else if (*val == '1') + *argt |= (EXTRA | NOSPC | NEEDARG); + else if (*val == '*') + *argt |= EXTRA; + else if (*val == '?') + *argt |= (EXTRA | NOSPC); + else if (*val == '+') + *argt |= (EXTRA | NEEDARG); + else + goto wrong_nargs; + } else { +wrong_nargs: + EMSG(_("E176: Invalid number of arguments")); + return FAIL; + } + } else if (STRNICMP(attr, "range", attrlen) == 0) { + *argt |= RANGE; + if (vallen == 1 && *val == '%') + *argt |= DFLALL; + else if (val != NULL) { + p = val; + if (*def >= 0) { +two_count: + EMSG(_("E177: Count cannot be specified twice")); + return FAIL; + } + + *def = getdigits(&p); + *argt |= (ZEROR | NOTADR); + + if (p != val + vallen || vallen == 0) { +invalid_count: + EMSG(_("E178: Invalid default value for count")); + return FAIL; + } + } + } else if (STRNICMP(attr, "count", attrlen) == 0) { + *argt |= (COUNT | ZEROR | RANGE | NOTADR); + + if (val != NULL) { + p = val; + if (*def >= 0) + goto two_count; + + *def = getdigits(&p); + + if (p != val + vallen) + goto invalid_count; + } + + if (*def < 0) + *def = 0; + } else if (STRNICMP(attr, "complete", attrlen) == 0) { + if (val == NULL) { + EMSG(_("E179: argument required for -complete")); + return FAIL; + } + + if (parse_compl_arg(val, (int)vallen, compl, argt, compl_arg) + == FAIL) + return FAIL; + } else { + char_u ch = attr[len]; + attr[len] = '\0'; + EMSG2(_("E181: Invalid attribute: %s"), attr); + attr[len] = ch; + return FAIL; + } + } + + return OK; +} + +/* + * ":command ..." + */ +static void ex_command(exarg_T *eap) +{ + char_u *name; + char_u *end; + char_u *p; + long argt = 0; + long def = -1; + int flags = 0; + int compl = EXPAND_NOTHING; + char_u *compl_arg = NULL; + int has_attr = (eap->arg[0] == '-'); + int name_len; + + p = eap->arg; + + /* Check for attributes */ + while (*p == '-') { + ++p; + end = skiptowhite(p); + if (uc_scan_attr(p, end - p, &argt, &def, &flags, &compl, &compl_arg) + == FAIL) + return; + p = skipwhite(end); + } + + /* Get the name (if any) and skip to the following argument */ + name = p; + if (ASCII_ISALPHA(*p)) + while (ASCII_ISALNUM(*p)) + ++p; + if (!ends_excmd(*p) && !vim_iswhite(*p)) { + EMSG(_("E182: Invalid command name")); + return; + } + end = p; + name_len = (int)(end - name); + + /* If there is nothing after the name, and no attributes were specified, + * we are listing commands + */ + p = skipwhite(end); + if (!has_attr && ends_excmd(*p)) { + uc_list(name, end - name); + } else if (!ASCII_ISUPPER(*name)) { + EMSG(_("E183: User defined commands must start with an uppercase letter")); + return; + } else if ((name_len == 1 && *name == 'X') + || (name_len <= 4 + && STRNCMP(name, "Next", name_len > 4 ? 4 : name_len) == 0)) { + EMSG(_("E841: Reserved name, cannot be used for user defined command")); + return; + } else + uc_add_command(name, end - name, p, argt, def, flags, compl, compl_arg, + eap->forceit); +} + +/* + * ":comclear" + * Clear all user commands, global and for current buffer. + */ +void ex_comclear(exarg_T *eap) +{ + uc_clear(&ucmds); + uc_clear(&curbuf->b_ucmds); +} + +/* + * Clear all user commands for "gap". + */ +void uc_clear(garray_T *gap) +{ + int i; + ucmd_T *cmd; + + for (i = 0; i < gap->ga_len; ++i) { + cmd = USER_CMD_GA(gap, i); + free(cmd->uc_name); + free(cmd->uc_rep); + free(cmd->uc_compl_arg); + } + ga_clear(gap); +} + +static void ex_delcommand(exarg_T *eap) +{ + int i = 0; + ucmd_T *cmd = NULL; + int cmp = -1; + garray_T *gap; + + gap = &curbuf->b_ucmds; + for (;; ) { + for (i = 0; i < gap->ga_len; ++i) { + cmd = USER_CMD_GA(gap, i); + cmp = STRCMP(eap->arg, cmd->uc_name); + if (cmp <= 0) + break; + } + if (gap == &ucmds || cmp == 0) + break; + gap = &ucmds; + } + + if (cmp != 0) { + EMSG2(_("E184: No such user-defined command: %s"), eap->arg); + return; + } + + free(cmd->uc_name); + free(cmd->uc_rep); + free(cmd->uc_compl_arg); + + --gap->ga_len; + + if (i < gap->ga_len) + memmove(cmd, cmd + 1, (gap->ga_len - i) * sizeof(ucmd_T)); +} + +/* + * split and quote args for <f-args> + */ +static char_u *uc_split_args(char_u *arg, size_t *lenp) +{ + char_u *buf; + char_u *p; + char_u *q; + int len; + + /* Precalculate length */ + p = arg; + len = 2; /* Initial and final quotes */ + + while (*p) { + if (p[0] == '\\' && p[1] == '\\') { + len += 2; + p += 2; + } else if (p[0] == '\\' && vim_iswhite(p[1])) { + len += 1; + p += 2; + } else if (*p == '\\' || *p == '"') { + len += 2; + p += 1; + } else if (vim_iswhite(*p)) { + p = skipwhite(p); + if (*p == NUL) + break; + len += 3; /* "," */ + } else { + int charlen = (*mb_ptr2len)(p); + len += charlen; + p += charlen; + } + } + + buf = xmalloc(len + 1); + + p = arg; + q = buf; + *q++ = '"'; + while (*p) { + if (p[0] == '\\' && p[1] == '\\') { + *q++ = '\\'; + *q++ = '\\'; + p += 2; + } else if (p[0] == '\\' && vim_iswhite(p[1])) { + *q++ = p[1]; + p += 2; + } else if (*p == '\\' || *p == '"') { + *q++ = '\\'; + *q++ = *p++; + } else if (vim_iswhite(*p)) { + p = skipwhite(p); + if (*p == NUL) + break; + *q++ = '"'; + *q++ = ','; + *q++ = '"'; + } else { + MB_COPY_CHAR(p, q); + } + } + *q++ = '"'; + *q = 0; + + *lenp = len; + return buf; +} + +/* + * Check for a <> code in a user command. + * "code" points to the '<'. "len" the length of the <> (inclusive). + * "buf" is where the result is to be added. + * "split_buf" points to a buffer used for splitting, caller should free it. + * "split_len" is the length of what "split_buf" contains. + * Returns the length of the replacement, which has been added to "buf". + * Returns -1 if there was no match, and only the "<" has been copied. + */ +static size_t +uc_check_code ( + char_u *code, + size_t len, + char_u *buf, + ucmd_T *cmd, /* the user command we're expanding */ + exarg_T *eap, /* ex arguments */ + char_u **split_buf, + size_t *split_len +) +{ + size_t result = 0; + char_u *p = code + 1; + size_t l = len - 2; + int quote = 0; + enum { ct_ARGS, ct_BANG, ct_COUNT, ct_LINE1, ct_LINE2, ct_REGISTER, + ct_LT, ct_NONE } type = ct_NONE; + + if ((vim_strchr((char_u *)"qQfF", *p) != NULL) && p[1] == '-') { + quote = (*p == 'q' || *p == 'Q') ? 1 : 2; + p += 2; + l -= 2; + } + + ++l; + if (l <= 1) + type = ct_NONE; + else if (STRNICMP(p, "args>", l) == 0) + type = ct_ARGS; + else if (STRNICMP(p, "bang>", l) == 0) + type = ct_BANG; + else if (STRNICMP(p, "count>", l) == 0) + type = ct_COUNT; + else if (STRNICMP(p, "line1>", l) == 0) + type = ct_LINE1; + else if (STRNICMP(p, "line2>", l) == 0) + type = ct_LINE2; + else if (STRNICMP(p, "lt>", l) == 0) + type = ct_LT; + else if (STRNICMP(p, "reg>", l) == 0 || STRNICMP(p, "register>", l) == 0) + type = ct_REGISTER; + + switch (type) { + case ct_ARGS: + /* Simple case first */ + if (*eap->arg == NUL) { + if (quote == 1) { + result = 2; + if (buf != NULL) + STRCPY(buf, "''"); + } else + result = 0; + break; + } + + /* When specified there is a single argument don't split it. + * Works for ":Cmd %" when % is "a b c". */ + if ((eap->argt & NOSPC) && quote == 2) + quote = 1; + + switch (quote) { + case 0: /* No quoting, no splitting */ + result = STRLEN(eap->arg); + if (buf != NULL) + STRCPY(buf, eap->arg); + break; + case 1: /* Quote, but don't split */ + result = STRLEN(eap->arg) + 2; + for (p = eap->arg; *p; ++p) { + if (enc_dbcs != 0 && (*mb_ptr2len)(p) == 2) + /* DBCS can contain \ in a trail byte, skip the + * double-byte character. */ + ++p; + else if (*p == '\\' || *p == '"') + ++result; + } + + if (buf != NULL) { + *buf++ = '"'; + for (p = eap->arg; *p; ++p) { + if (enc_dbcs != 0 && (*mb_ptr2len)(p) == 2) + /* DBCS can contain \ in a trail byte, copy the + * double-byte character to avoid escaping. */ + *buf++ = *p++; + else if (*p == '\\' || *p == '"') + *buf++ = '\\'; + *buf++ = *p; + } + *buf = '"'; + } + + break; + case 2: /* Quote and split (<f-args>) */ + /* This is hard, so only do it once, and cache the result */ + if (*split_buf == NULL) + *split_buf = uc_split_args(eap->arg, split_len); + + result = *split_len; + if (buf != NULL && result != 0) + STRCPY(buf, *split_buf); + + break; + } + break; + + case ct_BANG: + result = eap->forceit ? 1 : 0; + if (quote) + result += 2; + if (buf != NULL) { + if (quote) + *buf++ = '"'; + if (eap->forceit) + *buf++ = '!'; + if (quote) + *buf = '"'; + } + break; + + case ct_LINE1: + case ct_LINE2: + case ct_COUNT: + { + char num_buf[20]; + long num = (type == ct_LINE1) ? eap->line1 : + (type == ct_LINE2) ? eap->line2 : + (eap->addr_count > 0) ? eap->line2 : cmd->uc_def; + size_t num_len; + + sprintf(num_buf, "%" PRId64, (int64_t)num); + num_len = STRLEN(num_buf); + result = num_len; + + if (quote) + result += 2; + + if (buf != NULL) { + if (quote) + *buf++ = '"'; + STRCPY(buf, num_buf); + buf += num_len; + if (quote) + *buf = '"'; + } + + break; + } + + case ct_REGISTER: + result = eap->regname ? 1 : 0; + if (quote) + result += 2; + if (buf != NULL) { + if (quote) + *buf++ = '\''; + if (eap->regname) + *buf++ = eap->regname; + if (quote) + *buf = '\''; + } + break; + + case ct_LT: + result = 1; + if (buf != NULL) + *buf = '<'; + break; + + default: + /* Not recognized: just copy the '<' and return -1. */ + result = (size_t)-1; + if (buf != NULL) + *buf = '<'; + break; + } + + return result; +} + +static void do_ucmd(exarg_T *eap) +{ + char_u *buf; + char_u *p; + char_u *q; + + char_u *start; + char_u *end = NULL; + char_u *ksp; + size_t len, totlen; + + size_t split_len = 0; + char_u *split_buf = NULL; + ucmd_T *cmd; + scid_T save_current_SID = current_SID; + + if (eap->cmdidx == CMD_USER) + cmd = USER_CMD(eap->useridx); + else + cmd = USER_CMD_GA(&curbuf->b_ucmds, eap->useridx); + + /* + * Replace <> in the command by the arguments. + * First round: "buf" is NULL, compute length, allocate "buf". + * Second round: copy result into "buf". + */ + buf = NULL; + for (;; ) { + p = cmd->uc_rep; /* source */ + q = buf; /* destination */ + totlen = 0; + + for (;; ) { + start = vim_strchr(p, '<'); + if (start != NULL) + end = vim_strchr(start + 1, '>'); + if (buf != NULL) { + for (ksp = p; *ksp != NUL && *ksp != K_SPECIAL; ++ksp) + ; + if (*ksp == K_SPECIAL + && (start == NULL || ksp < start || end == NULL) + && ((ksp[1] == KS_SPECIAL && ksp[2] == KE_FILLER) + )) { + /* K_SPECIAL has been put in the buffer as K_SPECIAL + * KS_SPECIAL KE_FILLER, like for mappings, but + * do_cmdline() doesn't handle that, so convert it back. + * Also change K_SPECIAL KS_EXTRA KE_CSI into CSI. */ + len = ksp - p; + if (len > 0) { + memmove(q, p, len); + q += len; + } + *q++ = ksp[1] == KS_SPECIAL ? K_SPECIAL : CSI; + p = ksp + 3; + continue; + } + } + + /* break if there no <item> is found */ + if (start == NULL || end == NULL) + break; + + /* Include the '>' */ + ++end; + + /* Take everything up to the '<' */ + len = start - p; + if (buf == NULL) + totlen += len; + else { + memmove(q, p, len); + q += len; + } + + len = uc_check_code(start, end - start, q, cmd, eap, + &split_buf, &split_len); + if (len == (size_t)-1) { + /* no match, continue after '<' */ + p = start + 1; + len = 1; + } else + p = end; + if (buf == NULL) + totlen += len; + else + q += len; + } + if (buf != NULL) { /* second time here, finished */ + STRCPY(q, p); + break; + } + + totlen += STRLEN(p); /* Add on the trailing characters */ + buf = xmalloc(totlen + 1); + } + + current_SID = cmd->uc_scriptID; + (void)do_cmdline(buf, eap->getline, eap->cookie, + DOCMD_VERBOSE|DOCMD_NOWAIT|DOCMD_KEYTYPED); + current_SID = save_current_SID; + free(buf); + free(split_buf); +} + +static char_u *get_user_command_name(int idx) +{ + return get_user_commands(NULL, idx - (int)CMD_SIZE); +} + +/* + * Function given to ExpandGeneric() to obtain the list of user command names. + */ +char_u *get_user_commands(expand_T *xp, int idx) +{ + if (idx < curbuf->b_ucmds.ga_len) + return USER_CMD_GA(&curbuf->b_ucmds, idx)->uc_name; + idx -= curbuf->b_ucmds.ga_len; + if (idx < ucmds.ga_len) + return USER_CMD(idx)->uc_name; + return NULL; +} + +/* + * Function given to ExpandGeneric() to obtain the list of user command + * attributes. + */ +char_u *get_user_cmd_flags(expand_T *xp, int idx) +{ + static char *user_cmd_flags[] = + {"bang", "bar", "buffer", "complete", "count", + "nargs", "range", "register"}; + + if (idx >= (int)(sizeof(user_cmd_flags) / sizeof(user_cmd_flags[0]))) + return NULL; + return (char_u *)user_cmd_flags[idx]; +} + +/* + * Function given to ExpandGeneric() to obtain the list of values for -nargs. + */ +char_u *get_user_cmd_nargs(expand_T *xp, int idx) +{ + static char *user_cmd_nargs[] = {"0", "1", "*", "?", "+"}; + + if (idx >= (int)(sizeof(user_cmd_nargs) / sizeof(user_cmd_nargs[0]))) + return NULL; + return (char_u *)user_cmd_nargs[idx]; +} + +/* + * Function given to ExpandGeneric() to obtain the list of values for -complete. + */ +char_u *get_user_cmd_complete(expand_T *xp, int idx) +{ + return (char_u *)command_complete[idx].name; +} + + +/* + * Parse a completion argument "value[vallen]". + * The detected completion goes in "*complp", argument type in "*argt". + * When there is an argument, for function and user defined completion, it's + * copied to allocated memory and stored in "*compl_arg". + * Returns FAIL if something is wrong. + */ +int parse_compl_arg(char_u *value, int vallen, int *complp, long *argt, char_u **compl_arg) +{ + char_u *arg = NULL; + size_t arglen = 0; + int i; + int valend = vallen; + + /* Look for any argument part - which is the part after any ',' */ + for (i = 0; i < vallen; ++i) { + if (value[i] == ',') { + arg = &value[i + 1]; + arglen = vallen - i - 1; + valend = i; + break; + } + } + + for (i = 0; command_complete[i].expand != 0; ++i) { + if ((int)STRLEN(command_complete[i].name) == valend + && STRNCMP(value, command_complete[i].name, valend) == 0) { + *complp = command_complete[i].expand; + if (command_complete[i].expand == EXPAND_BUFFERS) + *argt |= BUFNAME; + else if (command_complete[i].expand == EXPAND_DIRECTORIES + || command_complete[i].expand == EXPAND_FILES) + *argt |= XFILE; + break; + } + } + + if (command_complete[i].expand == 0) { + EMSG2(_("E180: Invalid complete value: %s"), value); + return FAIL; + } + + if (*complp != EXPAND_USER_DEFINED && *complp != EXPAND_USER_LIST + && arg != NULL) { + EMSG(_("E468: Completion argument only allowed for custom completion")); + return FAIL; + } + + if ((*complp == EXPAND_USER_DEFINED || *complp == EXPAND_USER_LIST) + && arg == NULL) { + EMSG(_("E467: Custom completion requires a function argument")); + return FAIL; + } + + if (arg != NULL) + *compl_arg = vim_strnsave(arg, (int)arglen); + return OK; +} + +static void ex_colorscheme(exarg_T *eap) +{ + if (*eap->arg == NUL) { + char_u *expr = vim_strsave((char_u *)"g:colors_name"); + char_u *p = NULL; + + if (expr != NULL) { + ++emsg_off; + p = eval_to_string(expr, NULL, FALSE); + --emsg_off; + free(expr); + } + if (p != NULL) { + MSG(p); + free(p); + } else + MSG("default"); + } else if (load_colors(eap->arg) == FAIL) + EMSG2(_("E185: Cannot find color scheme '%s'"), eap->arg); +} + +static void ex_highlight(exarg_T *eap) +{ + if (*eap->arg == NUL && eap->cmd[2] == '!') + MSG(_("Greetings, Vim user!")); + do_highlight(eap->arg, eap->forceit, FALSE); +} + + +/* + * Call this function if we thought we were going to exit, but we won't + * (because of an error). May need to restore the terminal mode. + */ +void not_exiting(void) +{ + exiting = FALSE; + settmode(TMODE_RAW); +} + +/* + * ":quit": quit current window, quit Vim if closed the last window. + */ +static void ex_quit(exarg_T *eap) +{ + if (cmdwin_type != 0) { + cmdwin_result = Ctrl_C; + return; + } + /* Don't quit while editing the command line. */ + if (text_locked()) { + text_locked_msg(); + return; + } + apply_autocmds(EVENT_QUITPRE, NULL, NULL, FALSE, curbuf); + /* Refuse to quit when locked or when the buffer in the last window is + * being closed (can only happen in autocommands). */ + if (curbuf_locked() || (curbuf->b_nwindows == 1 && curbuf->b_closing)) + return; + + + /* + * If there are more files or windows we won't exit. + */ + if (check_more(FALSE, eap->forceit) == OK && only_one_window()) + exiting = TRUE; + if ((!P_HID(curbuf) + && check_changed(curbuf, (p_awa ? CCGD_AW : 0) + | (eap->forceit ? CCGD_FORCEIT : 0) + | CCGD_EXCMD)) + || check_more(TRUE, eap->forceit) == FAIL + || (only_one_window() && check_changed_any(eap->forceit))) { + not_exiting(); + } else { + if (only_one_window()) /* quit last window */ + getout(0); + /* close window; may free buffer */ + win_close(curwin, !P_HID(curwin->w_buffer) || eap->forceit); + } +} + +/* + * ":cquit". + */ +static void ex_cquit(exarg_T *eap) +{ + getout(1); /* this does not always pass on the exit code to the Manx + compiler. why? */ +} + +/* + * ":qall": try to quit all windows + */ +static void ex_quit_all(exarg_T *eap) +{ + if (cmdwin_type != 0) { + if (eap->forceit) + cmdwin_result = K_XF1; /* ex_window() takes care of this */ + else + cmdwin_result = K_XF2; + return; + } + + /* Don't quit while editing the command line. */ + if (text_locked()) { + text_locked_msg(); + return; + } + apply_autocmds(EVENT_QUITPRE, NULL, NULL, FALSE, curbuf); + /* Refuse to quit when locked or when the buffer in the last window is + * being closed (can only happen in autocommands). */ + if (curbuf_locked() || (curbuf->b_nwindows == 1 && curbuf->b_closing)) + return; + + exiting = TRUE; + if (eap->forceit || !check_changed_any(FALSE)) + getout(0); + not_exiting(); +} + +/* + * ":close": close current window, unless it is the last one + */ +static void ex_close(exarg_T *eap) +{ + if (cmdwin_type != 0) + cmdwin_result = Ctrl_C; + else if (!text_locked() + && !curbuf_locked() + ) + ex_win_close(eap->forceit, curwin, NULL); +} + +/* + * ":pclose": Close any preview window. + */ +static void ex_pclose(exarg_T *eap) +{ + win_T *win; + + for (win = firstwin; win != NULL; win = win->w_next) + if (win->w_p_pvw) { + ex_win_close(eap->forceit, win, NULL); + break; + } +} + +/* + * Close window "win" and take care of handling closing the last window for a + * modified buffer. + */ +static void +ex_win_close ( + int forceit, + win_T *win, + tabpage_T *tp /* NULL or the tab page "win" is in */ +) +{ + int need_hide; + buf_T *buf = win->w_buffer; + + need_hide = (bufIsChanged(buf) && buf->b_nwindows <= 1); + if (need_hide && !P_HID(buf) && !forceit) { + if ((p_confirm || cmdmod.confirm) && p_write) { + dialog_changed(buf, FALSE); + if (buf_valid(buf) && bufIsChanged(buf)) + return; + need_hide = FALSE; + } else { + EMSG(_(e_nowrtmsg)); + return; + } + } + + + /* free buffer when not hiding it or when it's a scratch buffer */ + if (tp == NULL) + win_close(win, !need_hide && !P_HID(buf)); + else + win_close_othertab(win, !need_hide && !P_HID(buf), tp); +} + +/* + * ":tabclose": close current tab page, unless it is the last one. + * ":tabclose N": close tab page N. + */ +static void ex_tabclose(exarg_T *eap) +{ + tabpage_T *tp; + + if (cmdwin_type != 0) + cmdwin_result = K_IGNORE; + else if (first_tabpage->tp_next == NULL) + EMSG(_("E784: Cannot close last tab page")); + else { + if (eap->addr_count > 0) { + tp = find_tabpage((int)eap->line2); + if (tp == NULL) { + beep_flush(); + return; + } + if (tp != curtab) { + tabpage_close_other(tp, eap->forceit); + return; + } + } + if (!text_locked() + && !curbuf_locked() + ) + tabpage_close(eap->forceit); + } +} + +/* + * ":tabonly": close all tab pages except the current one + */ +static void ex_tabonly(exarg_T *eap) +{ + tabpage_T *tp; + int done; + + if (cmdwin_type != 0) + cmdwin_result = K_IGNORE; + else if (first_tabpage->tp_next == NULL) + MSG(_("Already only one tab page")); + else { + /* Repeat this up to a 1000 times, because autocommands may mess + * up the lists. */ + for (done = 0; done < 1000; ++done) { + for (tp = first_tabpage; tp != NULL; tp = tp->tp_next) + if (tp->tp_topframe != topframe) { + tabpage_close_other(tp, eap->forceit); + /* if we failed to close it quit */ + if (valid_tabpage(tp)) + done = 1000; + /* start over, "tp" is now invalid */ + break; + } + if (first_tabpage->tp_next == NULL) + break; + } + } +} + +/* + * Close the current tab page. + */ +void tabpage_close(int forceit) +{ + /* First close all the windows but the current one. If that worked then + * close the last window in this tab, that will close it. */ + if (lastwin != firstwin) + close_others(TRUE, forceit); + if (lastwin == firstwin) + ex_win_close(forceit, curwin, NULL); +} + +/* + * Close tab page "tp", which is not the current tab page. + * Note that autocommands may make "tp" invalid. + * Also takes care of the tab pages line disappearing when closing the + * last-but-one tab page. + */ +void tabpage_close_other(tabpage_T *tp, int forceit) +{ + int done = 0; + win_T *wp; + int h = tabline_height(); + + /* Limit to 1000 windows, autocommands may add a window while we close + * one. OK, so I'm paranoid... */ + while (++done < 1000) { + wp = tp->tp_firstwin; + ex_win_close(forceit, wp, tp); + + /* Autocommands may delete the tab page under our fingers and we may + * fail to close a window with a modified buffer. */ + if (!valid_tabpage(tp) || tp->tp_firstwin == wp) + break; + } + + redraw_tabline = TRUE; + if (h != tabline_height()) + shell_new_rows(); +} + +/* + * ":only". + */ +static void ex_only(exarg_T *eap) +{ + close_others(TRUE, eap->forceit); +} + +/* + * ":all" and ":sall". + * Also used for ":tab drop file ..." after setting the argument list. + */ +void ex_all(exarg_T *eap) +{ + if (eap->addr_count == 0) + eap->line2 = 9999; + do_arg_all((int)eap->line2, eap->forceit, eap->cmdidx == CMD_drop); +} + +static void ex_hide(exarg_T *eap) +{ + if (*eap->arg != NUL && check_nextcmd(eap->arg) == NULL) + eap->errmsg = e_invarg; + else { + /* ":hide" or ":hide | cmd": hide current window */ + eap->nextcmd = check_nextcmd(eap->arg); + if (!eap->skip) { + win_close(curwin, FALSE); /* don't free buffer */ + } + } +} + +/* + * ":stop" and ":suspend": Suspend Vim. + */ +static void ex_stop(exarg_T *eap) +{ + /* + * Disallow suspending for "rvim". + */ + if (!check_restricted() + ) { + if (!eap->forceit) + autowrite_all(); + windgoto((int)Rows - 1, 0); + out_char('\n'); + out_flush(); + stoptermcap(); + out_flush(); /* needed for SUN to restore xterm buffer */ + mch_restore_title(3); /* restore window titles */ + ui_suspend(); /* call machine specific function */ + maketitle(); + resettitle(); /* force updating the title */ + starttermcap(); + scroll_start(); /* scroll screen before redrawing */ + redraw_later_clear(); + shell_resized(); /* may have resized window */ + } +} + +/* + * ":exit", ":xit" and ":wq": Write file and exit Vim. + */ +static void ex_exit(exarg_T *eap) +{ + if (cmdwin_type != 0) { + cmdwin_result = Ctrl_C; + return; + } + /* Don't quit while editing the command line. */ + if (text_locked()) { + text_locked_msg(); + return; + } + apply_autocmds(EVENT_QUITPRE, NULL, NULL, FALSE, curbuf); + /* Refuse to quit when locked or when the buffer in the last window is + * being closed (can only happen in autocommands). */ + if (curbuf_locked() || (curbuf->b_nwindows == 1 && curbuf->b_closing)) + return; + + /* + * if more files or windows we won't exit + */ + if (check_more(FALSE, eap->forceit) == OK && only_one_window()) + exiting = TRUE; + if ( ((eap->cmdidx == CMD_wq + || curbufIsChanged()) + && do_write(eap) == FAIL) + || check_more(TRUE, eap->forceit) == FAIL + || (only_one_window() && check_changed_any(eap->forceit))) { + not_exiting(); + } else { + if (only_one_window()) /* quit last window, exit Vim */ + getout(0); + /* Quit current window, may free the buffer. */ + win_close(curwin, !P_HID(curwin->w_buffer)); + } +} + +/* + * ":print", ":list", ":number". + */ +static void ex_print(exarg_T *eap) +{ + if (curbuf->b_ml.ml_flags & ML_EMPTY) + EMSG(_(e_emptybuf)); + else { + for (; !got_int; ui_breakcheck()) { + print_line(eap->line1, + (eap->cmdidx == CMD_number || eap->cmdidx == CMD_pound + || (eap->flags & EXFLAG_NR)), + eap->cmdidx == CMD_list || (eap->flags & EXFLAG_LIST)); + if (++eap->line1 > eap->line2) + break; + out_flush(); /* show one line at a time */ + } + setpcmark(); + /* put cursor at last line */ + curwin->w_cursor.lnum = eap->line2; + beginline(BL_SOL | BL_FIX); + } + + ex_no_reprint = TRUE; +} + +static void ex_goto(exarg_T *eap) +{ + goto_byte(eap->line2); +} + +/* + * Clear an argument list: free all file names and reset it to zero entries. + */ +void alist_clear(alist_T *al) +{ + while (--al->al_ga.ga_len >= 0) + free(AARGLIST(al)[al->al_ga.ga_len].ae_fname); + ga_clear(&al->al_ga); +} + +/* + * Init an argument list. + */ +void alist_init(alist_T *al) +{ + ga_init(&al->al_ga, (int)sizeof(aentry_T), 5); +} + + +/* + * Remove a reference from an argument list. + * Ignored when the argument list is the global one. + * If the argument list is no longer used by any window, free it. + */ +void alist_unlink(alist_T *al) +{ + if (al != &global_alist && --al->al_refcount <= 0) { + alist_clear(al); + free(al); + } +} + +/* + * Create a new argument list and use it for the current window. + */ +void alist_new(void) +{ + curwin->w_alist = xmalloc(sizeof(*curwin->w_alist)); + curwin->w_alist->al_refcount = 1; + alist_init(curwin->w_alist); +} + +#if !defined(UNIX) || defined(PROTO) +/* + * Expand the file names in the global argument list. + * If "fnum_list" is not NULL, use "fnum_list[fnum_len]" as a list of buffer + * numbers to be re-used. + */ +void alist_expand(int *fnum_list, int fnum_len) +{ + char_u **old_arg_files; + int old_arg_count; + char_u **new_arg_files; + int new_arg_file_count; + char_u *save_p_su = p_su; + int i; + + /* Don't use 'suffixes' here. This should work like the shell did the + * expansion. Also, the vimrc file isn't read yet, thus the user + * can't set the options. */ + p_su = empty_option; + old_arg_files = xmalloc(sizeof(*old_arg_files) * GARGCOUNT); + for (i = 0; i < GARGCOUNT; ++i) + old_arg_files[i] = vim_strsave(GARGLIST[i].ae_fname); + old_arg_count = GARGCOUNT; + if (expand_wildcards(old_arg_count, old_arg_files, + &new_arg_file_count, &new_arg_files, + EW_FILE|EW_NOTFOUND|EW_ADDSLASH|EW_NOERROR) == OK + && new_arg_file_count > 0) { + alist_set(&global_alist, new_arg_file_count, new_arg_files, + TRUE, fnum_list, fnum_len); + FreeWild(old_arg_count, old_arg_files); + } + p_su = save_p_su; +} +#endif + +/* + * Set the argument list for the current window. + * Takes over the allocated files[] and the allocated fnames in it. + */ +void alist_set(alist_T *al, int count, char_u **files, int use_curbuf, int *fnum_list, int fnum_len) +{ + int i; + + alist_clear(al); + ga_grow(&al->al_ga, count); + { + for (i = 0; i < count; ++i) { + if (got_int) { + /* When adding many buffers this can take a long time. Allow + * interrupting here. */ + while (i < count) + free(files[i++]); + break; + } + + /* May set buffer name of a buffer previously used for the + * argument list, so that it's re-used by alist_add. */ + if (fnum_list != NULL && i < fnum_len) + buf_set_name(fnum_list[i], files[i]); + + alist_add(al, files[i], use_curbuf ? 2 : 1); + ui_breakcheck(); + } + free(files); + } + + if (al == &global_alist) + arg_had_last = FALSE; +} + +/* + * Add file "fname" to argument list "al". + * "fname" must have been allocated and "al" must have been checked for room. + */ +void +alist_add ( + alist_T *al, + char_u *fname, + int set_fnum /* 1: set buffer number; 2: re-use curbuf */ +) +{ + if (fname == NULL) /* don't add NULL file names */ + return; +#ifdef BACKSLASH_IN_FILENAME + slash_adjust(fname); +#endif + AARGLIST(al)[al->al_ga.ga_len].ae_fname = fname; + if (set_fnum > 0) + AARGLIST(al)[al->al_ga.ga_len].ae_fnum = + buflist_add(fname, BLN_LISTED | (set_fnum == 2 ? BLN_CURBUF : 0)); + ++al->al_ga.ga_len; +} + +#if defined(BACKSLASH_IN_FILENAME) || defined(PROTO) +/* + * Adjust slashes in file names. Called after 'shellslash' was set. + */ +void alist_slash_adjust(void) +{ + int i; + win_T *wp; + tabpage_T *tp; + + for (i = 0; i < GARGCOUNT; ++i) + if (GARGLIST[i].ae_fname != NULL) + slash_adjust(GARGLIST[i].ae_fname); + FOR_ALL_TAB_WINDOWS(tp, wp) + if (wp->w_alist != &global_alist) + for (i = 0; i < WARGCOUNT(wp); ++i) + if (WARGLIST(wp)[i].ae_fname != NULL) + slash_adjust(WARGLIST(wp)[i].ae_fname); +} + +#endif + +/* + * ":preserve". + */ +static void ex_preserve(exarg_T *eap) +{ + curbuf->b_flags |= BF_PRESERVED; + ml_preserve(curbuf, TRUE); +} + +/* + * ":recover". + */ +static void ex_recover(exarg_T *eap) +{ + /* Set recoverymode right away to avoid the ATTENTION prompt. */ + recoverymode = TRUE; + if (!check_changed(curbuf, (p_awa ? CCGD_AW : 0) + | CCGD_MULTWIN + | (eap->forceit ? CCGD_FORCEIT : 0) + | CCGD_EXCMD) + + && (*eap->arg == NUL + || setfname(curbuf, eap->arg, NULL, TRUE) == OK)) + ml_recover(); + recoverymode = FALSE; +} + +/* + * Command modifier used in a wrong way. + */ +static void ex_wrongmodifier(exarg_T *eap) +{ + eap->errmsg = e_invcmd; +} + +/* + * :sview [+command] file split window with new file, read-only + * :split [[+command] file] split window with current or new file + * :vsplit [[+command] file] split window vertically with current or new file + * :new [[+command] file] split window with no or new file + * :vnew [[+command] file] split vertically window with no or new file + * :sfind [+command] file split window with file in 'path' + * + * :tabedit open new Tab page with empty window + * :tabedit [+command] file open new Tab page and edit "file" + * :tabnew [[+command] file] just like :tabedit + * :tabfind [+command] file open new Tab page and find "file" + */ +void ex_splitview(exarg_T *eap) +{ + win_T *old_curwin = curwin; + char_u *fname = NULL; + + + + /* A ":split" in the quickfix window works like ":new". Don't want two + * quickfix windows. But it's OK when doing ":tab split". */ + if (bt_quickfix(curbuf) && cmdmod.tab == 0) { + if (eap->cmdidx == CMD_split) + eap->cmdidx = CMD_new; + if (eap->cmdidx == CMD_vsplit) + eap->cmdidx = CMD_vnew; + } + + if (eap->cmdidx == CMD_sfind || eap->cmdidx == CMD_tabfind) { + fname = find_file_in_path(eap->arg, (int)STRLEN(eap->arg), + FNAME_MESS, TRUE, curbuf->b_ffname); + if (fname == NULL) + goto theend; + eap->arg = fname; + } + + /* + * Either open new tab page or split the window. + */ + if (eap->cmdidx == CMD_tabedit + || eap->cmdidx == CMD_tabfind + || eap->cmdidx == CMD_tabnew) { + if (win_new_tabpage(cmdmod.tab != 0 ? cmdmod.tab + : eap->addr_count == 0 ? 0 + : (int)eap->line2 + 1) != FAIL) { + do_exedit(eap, old_curwin); + + /* set the alternate buffer for the window we came from */ + if (curwin != old_curwin + && win_valid(old_curwin) + && old_curwin->w_buffer != curbuf + && !cmdmod.keepalt) + old_curwin->w_alt_fnum = curbuf->b_fnum; + } + } else if (win_split(eap->addr_count > 0 ? (int)eap->line2 : 0, + *eap->cmd == 'v' ? WSP_VERT : 0) != FAIL) { + /* Reset 'scrollbind' when editing another file, but keep it when + * doing ":split" without arguments. */ + if (*eap->arg != NUL + ) { + RESET_BINDING(curwin); + } else + do_check_scrollbind(FALSE); + do_exedit(eap, old_curwin); + } + + +theend: + free(fname); +} + +/* + * Open a new tab page. + */ +void tabpage_new(void) +{ + exarg_T ea; + + memset(&ea, 0, sizeof(ea)); + ea.cmdidx = CMD_tabnew; + ea.cmd = (char_u *)"tabn"; + ea.arg = (char_u *)""; + ex_splitview(&ea); +} + +/* + * :tabnext command + */ +static void ex_tabnext(exarg_T *eap) +{ + switch (eap->cmdidx) { + case CMD_tabfirst: + case CMD_tabrewind: + goto_tabpage(1); + break; + case CMD_tablast: + goto_tabpage(9999); + break; + case CMD_tabprevious: + case CMD_tabNext: + goto_tabpage(eap->addr_count == 0 ? -1 : -(int)eap->line2); + break; + default: /* CMD_tabnext */ + goto_tabpage(eap->addr_count == 0 ? 0 : (int)eap->line2); + break; + } +} + +/* + * :tabmove command + */ +static void ex_tabmove(exarg_T *eap) +{ + int tab_number = 9999; + + if (eap->arg && *eap->arg != NUL) { + char_u *p = eap->arg; + int relative = 0; /* argument +N/-N means: move N places to the + * right/left relative to the current position. */ + + if (*eap->arg == '-') { + relative = -1; + p = eap->arg + 1; + } else if (*eap->arg == '+') { + relative = 1; + p = eap->arg + 1; + } else + p = eap->arg; + + if (p == skipdigits(p)) { + /* No numbers as argument. */ + eap->errmsg = e_invarg; + return; + } + + tab_number = getdigits(&p); + if (relative != 0) + tab_number = tab_number * relative + tabpage_index(curtab) - 1; ; + } else if (eap->addr_count != 0) + tab_number = eap->line2; + + tabpage_move(tab_number); +} + +/* + * :tabs command: List tabs and their contents. + */ +static void ex_tabs(exarg_T *eap) +{ + tabpage_T *tp; + win_T *wp; + int tabcount = 1; + + msg_start(); + msg_scroll = TRUE; + for (tp = first_tabpage; tp != NULL && !got_int; tp = tp->tp_next) { + msg_putchar('\n'); + vim_snprintf((char *)IObuff, IOSIZE, _("Tab page %d"), tabcount++); + msg_outtrans_attr(IObuff, hl_attr(HLF_T)); + out_flush(); /* output one line at a time */ + ui_breakcheck(); + + if (tp == curtab) + wp = firstwin; + else + wp = tp->tp_firstwin; + for (; wp != NULL && !got_int; wp = wp->w_next) { + msg_putchar('\n'); + msg_putchar(wp == curwin ? '>' : ' '); + msg_putchar(' '); + msg_putchar(bufIsChanged(wp->w_buffer) ? '+' : ' '); + msg_putchar(' '); + if (buf_spname(wp->w_buffer) != NULL) + vim_strncpy(IObuff, buf_spname(wp->w_buffer), IOSIZE - 1); + else + home_replace(wp->w_buffer, wp->w_buffer->b_fname, + IObuff, IOSIZE, TRUE); + msg_outtrans(IObuff); + out_flush(); /* output one line at a time */ + ui_breakcheck(); + } + } +} + + +/* + * ":mode": + * If no argument given, get the screen size and redraw. + */ +static void ex_mode(exarg_T *eap) +{ + if (*eap->arg == NUL) { + shell_resized(); + } else { + EMSG(_(e_screenmode)); + } +} + +/* + * ":resize". + * set, increment or decrement current window height + */ +static void ex_resize(exarg_T *eap) +{ + int n; + win_T *wp = curwin; + + if (eap->addr_count > 0) { + n = eap->line2; + for (wp = firstwin; wp->w_next != NULL && --n > 0; wp = wp->w_next) + ; + } + + n = atol((char *)eap->arg); + if (cmdmod.split & WSP_VERT) { + if (*eap->arg == '-' || *eap->arg == '+') + n += W_WIDTH(curwin); + else if (n == 0 && eap->arg[0] == NUL) /* default is very wide */ + n = 9999; + win_setwidth_win((int)n, wp); + } else { + if (*eap->arg == '-' || *eap->arg == '+') + n += curwin->w_height; + else if (n == 0 && eap->arg[0] == NUL) /* default is very wide */ + n = 9999; + win_setheight_win((int)n, wp); + } +} + +/* + * ":find [+command] <file>" command. + */ +static void ex_find(exarg_T *eap) +{ + char_u *fname; + int count; + + fname = find_file_in_path(eap->arg, (int)STRLEN(eap->arg), FNAME_MESS, + TRUE, curbuf->b_ffname); + if (eap->addr_count > 0) { + /* Repeat finding the file "count" times. This matters when it + * appears several times in the path. */ + count = eap->line2; + while (fname != NULL && --count > 0) { + free(fname); + fname = find_file_in_path(NULL, 0, FNAME_MESS, + FALSE, curbuf->b_ffname); + } + } + + if (fname != NULL) { + eap->arg = fname; + do_exedit(eap, NULL); + free(fname); + } +} + +/* + * ":open" simulation: for now just work like ":visual". + */ +static void ex_open(exarg_T *eap) +{ + regmatch_T regmatch; + char_u *p; + + curwin->w_cursor.lnum = eap->line2; + beginline(BL_SOL | BL_FIX); + if (*eap->arg == '/') { + /* ":open /pattern/": put cursor in column found with pattern */ + ++eap->arg; + p = skip_regexp(eap->arg, '/', p_magic, NULL); + *p = NUL; + regmatch.regprog = vim_regcomp(eap->arg, p_magic ? RE_MAGIC : 0); + if (regmatch.regprog != NULL) { + regmatch.rm_ic = p_ic; + p = ml_get_curline(); + if (vim_regexec(®match, p, (colnr_T)0)) + curwin->w_cursor.col = (colnr_T)(regmatch.startp[0] - p); + else + EMSG(_(e_nomatch)); + vim_regfree(regmatch.regprog); + } + /* Move to the NUL, ignore any other arguments. */ + eap->arg += STRLEN(eap->arg); + } + check_cursor(); + + eap->cmdidx = CMD_visual; + do_exedit(eap, NULL); +} + +/* + * ":edit", ":badd", ":visual". + */ +static void ex_edit(exarg_T *eap) +{ + do_exedit(eap, NULL); +} + +/* + * ":edit <file>" command and alikes. + */ +void +do_exedit ( + exarg_T *eap, + win_T *old_curwin /* curwin before doing a split or NULL */ +) +{ + int n; + int need_hide; + int exmode_was = exmode_active; + + /* + * ":vi" command ends Ex mode. + */ + if (exmode_active && (eap->cmdidx == CMD_visual + || eap->cmdidx == CMD_view)) { + exmode_active = FALSE; + if (*eap->arg == NUL) { + /* Special case: ":global/pat/visual\NLvi-commands" */ + if (global_busy) { + int rd = RedrawingDisabled; + int nwr = no_wait_return; + int ms = msg_scroll; + + if (eap->nextcmd != NULL) { + stuffReadbuff(eap->nextcmd); + eap->nextcmd = NULL; + } + + if (exmode_was != EXMODE_VIM) + settmode(TMODE_RAW); + RedrawingDisabled = 0; + no_wait_return = 0; + need_wait_return = FALSE; + msg_scroll = 0; + must_redraw = CLEAR; + + main_loop(FALSE, TRUE); + + RedrawingDisabled = rd; + no_wait_return = nwr; + msg_scroll = ms; + } + return; + } + } + + if ((eap->cmdidx == CMD_new + || eap->cmdidx == CMD_tabnew + || eap->cmdidx == CMD_tabedit + || eap->cmdidx == CMD_vnew + ) && *eap->arg == NUL) { + /* ":new" or ":tabnew" without argument: edit an new empty buffer */ + setpcmark(); + (void)do_ecmd(0, NULL, NULL, eap, ECMD_ONE, + ECMD_HIDE + (eap->forceit ? ECMD_FORCEIT : 0), + old_curwin == NULL ? curwin : NULL); + } else if ((eap->cmdidx != CMD_split + && eap->cmdidx != CMD_vsplit + ) + || *eap->arg != NUL + ) { + /* Can't edit another file when "curbuf_lock" is set. Only ":edit" + * can bring us here, others are stopped earlier. */ + if (*eap->arg != NUL && curbuf_locked()) + return; + n = readonlymode; + if (eap->cmdidx == CMD_view || eap->cmdidx == CMD_sview) + readonlymode = TRUE; + else if (eap->cmdidx == CMD_enew) + readonlymode = FALSE; /* 'readonly' doesn't make sense in an + empty buffer */ + setpcmark(); + if (do_ecmd(0, (eap->cmdidx == CMD_enew ? NULL : eap->arg), + NULL, eap, + /* ":edit" goes to first line if Vi compatible */ + (*eap->arg == NUL && eap->do_ecmd_lnum == 0 + && vim_strchr(p_cpo, CPO_GOTO1) != NULL) + ? ECMD_ONE : eap->do_ecmd_lnum, + (P_HID(curbuf) ? ECMD_HIDE : 0) + + (eap->forceit ? ECMD_FORCEIT : 0) + // After a split we can use an existing buffer. + + (old_curwin != NULL ? ECMD_OLDBUF : 0) + + (eap->cmdidx == CMD_badd ? ECMD_ADDBUF : 0 ) + , old_curwin == NULL ? curwin : NULL) == FAIL) { + /* Editing the file failed. If the window was split, close it. */ + if (old_curwin != NULL) { + need_hide = (curbufIsChanged() && curbuf->b_nwindows <= 1); + if (!need_hide || P_HID(curbuf)) { + cleanup_T cs; + + /* Reset the error/interrupt/exception state here so that + * aborting() returns FALSE when closing a window. */ + enter_cleanup(&cs); + win_close(curwin, !need_hide && !P_HID(curbuf)); + + /* Restore the error/interrupt/exception state if not + * discarded by a new aborting error, interrupt, or + * uncaught exception. */ + leave_cleanup(&cs); + } + } + } else if (readonlymode && curbuf->b_nwindows == 1) { + /* When editing an already visited buffer, 'readonly' won't be set + * but the previous value is kept. With ":view" and ":sview" we + * want the file to be readonly, except when another window is + * editing the same buffer. */ + curbuf->b_p_ro = TRUE; + } + readonlymode = n; + } else { + if (eap->do_ecmd_cmd != NULL) + do_cmdline_cmd(eap->do_ecmd_cmd); + n = curwin->w_arg_idx_invalid; + check_arg_idx(curwin); + if (n != curwin->w_arg_idx_invalid) + maketitle(); + } + + /* + * if ":split file" worked, set alternate file name in old window to new + * file + */ + if (old_curwin != NULL + && *eap->arg != NUL + && curwin != old_curwin + && win_valid(old_curwin) + && old_curwin->w_buffer != curbuf + && !cmdmod.keepalt) + old_curwin->w_alt_fnum = curbuf->b_fnum; + + ex_no_reprint = TRUE; +} + +/* + * ":gui" and ":gvim" when there is no GUI. + */ +static void ex_nogui(exarg_T *eap) +{ + eap->errmsg = e_nogvim; +} + + + +static void ex_swapname(exarg_T *eap) +{ + if (curbuf->b_ml.ml_mfp == NULL || curbuf->b_ml.ml_mfp->mf_fname == NULL) + MSG(_("No swap file")); + else + msg(curbuf->b_ml.ml_mfp->mf_fname); +} + +/* + * ":syncbind" forces all 'scrollbind' windows to have the same relative + * offset. + * (1998-11-02 16:21:01 R. Edward Ralston <eralston@computer.org>) + */ +static void ex_syncbind(exarg_T *eap) +{ + win_T *wp; + win_T *save_curwin = curwin; + buf_T *save_curbuf = curbuf; + long topline; + long y; + linenr_T old_linenr = curwin->w_cursor.lnum; + + setpcmark(); + + /* + * determine max topline + */ + if (curwin->w_p_scb) { + topline = curwin->w_topline; + for (wp = firstwin; wp; wp = wp->w_next) { + if (wp->w_p_scb && wp->w_buffer) { + y = wp->w_buffer->b_ml.ml_line_count - p_so; + if (topline > y) + topline = y; + } + } + if (topline < 1) + topline = 1; + } else { + topline = 1; + } + + + /* + * Set all scrollbind windows to the same topline. + */ + for (curwin = firstwin; curwin; curwin = curwin->w_next) { + if (curwin->w_p_scb) { + curbuf = curwin->w_buffer; + y = topline - curwin->w_topline; + if (y > 0) + scrollup(y, TRUE); + else + scrolldown(-y, TRUE); + curwin->w_scbind_pos = topline; + redraw_later(VALID); + cursor_correct(); + curwin->w_redr_status = TRUE; + } + } + curwin = save_curwin; + curbuf = save_curbuf; + if (curwin->w_p_scb) { + did_syncbind = TRUE; + checkpcmark(); + if (old_linenr != curwin->w_cursor.lnum) { + char_u ctrl_o[2]; + + ctrl_o[0] = Ctrl_O; + ctrl_o[1] = 0; + ins_typebuf(ctrl_o, REMAP_NONE, 0, TRUE, FALSE); + } + } +} + + +static void ex_read(exarg_T *eap) +{ + int i; + int empty = (curbuf->b_ml.ml_flags & ML_EMPTY); + linenr_T lnum; + + if (eap->usefilter) /* :r!cmd */ + do_bang(1, eap, FALSE, FALSE, TRUE); + else { + if (u_save(eap->line2, (linenr_T)(eap->line2 + 1)) == FAIL) + return; + + if (*eap->arg == NUL) { + if (check_fname() == FAIL) /* check for no file name */ + return; + i = readfile(curbuf->b_ffname, curbuf->b_fname, + eap->line2, (linenr_T)0, (linenr_T)MAXLNUM, eap, 0); + } else { + if (vim_strchr(p_cpo, CPO_ALTREAD) != NULL) + (void)setaltfname(eap->arg, eap->arg, (linenr_T)1); + i = readfile(eap->arg, NULL, + eap->line2, (linenr_T)0, (linenr_T)MAXLNUM, eap, 0); + + } + if (i == FAIL) { + if (!aborting()) + EMSG2(_(e_notopen), eap->arg); + } else { + if (empty && exmode_active) { + /* Delete the empty line that remains. Historically ex does + * this but vi doesn't. */ + if (eap->line2 == 0) + lnum = curbuf->b_ml.ml_line_count; + else + lnum = 1; + if (*ml_get(lnum) == NUL && u_savedel(lnum, 1L) == OK) { + ml_delete(lnum, FALSE); + if (curwin->w_cursor.lnum > 1 + && curwin->w_cursor.lnum >= lnum) + --curwin->w_cursor.lnum; + deleted_lines_mark(lnum, 1L); + } + } + redraw_curbuf_later(VALID); + } + } +} + +static char_u *prev_dir = NULL; + +#if defined(EXITFREE) || defined(PROTO) +void free_cd_dir(void) +{ + free(prev_dir); + prev_dir = NULL; + + free(globaldir); + globaldir = NULL; +} + +#endif + +/* + * Deal with the side effects of changing the current directory. + * When "local" is TRUE then this was after an ":lcd" command. + */ +void post_chdir(int local) +{ + free(curwin->w_localdir); + curwin->w_localdir = NULL; + if (local) { + /* If still in global directory, need to remember current + * directory as global directory. */ + if (globaldir == NULL && prev_dir != NULL) + globaldir = vim_strsave(prev_dir); + /* Remember this local directory for the window. */ + if (os_dirname(NameBuff, MAXPATHL) == OK) + curwin->w_localdir = vim_strsave(NameBuff); + } else { + /* We are now in the global directory, no need to remember its + * name. */ + free(globaldir); + globaldir = NULL; + } + + shorten_fnames(TRUE); +} + + +/* + * ":cd", ":lcd", ":chdir" and ":lchdir". + */ +void ex_cd(exarg_T *eap) +{ + char_u *new_dir; + char_u *tofree; + + new_dir = eap->arg; +#if !defined(UNIX) + /* for non-UNIX ":cd" means: print current directory */ + if (*new_dir == NUL) + ex_pwd(NULL); + else +#endif + { + if (allbuf_locked()) + return; + if (vim_strchr(p_cpo, CPO_CHDIR) != NULL && curbufIsChanged() + && !eap->forceit) { + EMSG(_( + "E747: Cannot change directory, buffer is modified (add ! to override)")); + return; + } + + /* ":cd -": Change to previous directory */ + if (STRCMP(new_dir, "-") == 0) { + if (prev_dir == NULL) { + EMSG(_("E186: No previous directory")); + return; + } + new_dir = prev_dir; + } + + /* Save current directory for next ":cd -" */ + tofree = prev_dir; + if (os_dirname(NameBuff, MAXPATHL) == OK) + prev_dir = vim_strsave(NameBuff); + else + prev_dir = NULL; + +#if defined(UNIX) + /* for UNIX ":cd" means: go to home directory */ + if (*new_dir == NUL) { + /* use NameBuff for home directory name */ + expand_env((char_u *)"$HOME", NameBuff, MAXPATHL); + new_dir = NameBuff; + } +#endif + if (new_dir == NULL || vim_chdir(new_dir)) + EMSG(_(e_failed)); + else { + post_chdir(eap->cmdidx == CMD_lcd || eap->cmdidx == CMD_lchdir); + + /* Echo the new current directory if the command was typed. */ + if (KeyTyped || p_verbose >= 5) + ex_pwd(eap); + } + free(tofree); + } +} + +/* + * ":pwd". + */ +static void ex_pwd(exarg_T *eap) +{ + if (os_dirname(NameBuff, MAXPATHL) == OK) { +#ifdef BACKSLASH_IN_FILENAME + slash_adjust(NameBuff); +#endif + msg(NameBuff); + } else + EMSG(_("E187: Unknown")); +} + +/* + * ":=". + */ +static void ex_equal(exarg_T *eap) +{ + smsg((char_u *)"%" PRId64, (int64_t)eap->line2); + ex_may_print(eap); +} + +static void ex_sleep(exarg_T *eap) +{ + int n; + long len; + + if (cursor_valid()) { + n = W_WINROW(curwin) + curwin->w_wrow - msg_scrolled; + if (n >= 0) + windgoto((int)n, W_WINCOL(curwin) + curwin->w_wcol); + } + + len = eap->line2; + switch (*eap->arg) { + case 'm': break; + case NUL: len *= 1000L; break; + default: EMSG2(_(e_invarg2), eap->arg); return; + } + do_sleep(len); +} + +/* + * Sleep for "msec" milliseconds, but keep checking for a CTRL-C every second. + */ +void do_sleep(long msec) +{ + long done; + + cursor_on(); + out_flush(); + for (done = 0; !got_int && done < msec; done += 1000L) { + ui_delay(msec - done > 1000L ? 1000L : msec - done, TRUE); + ui_breakcheck(); + } +} + +static void do_exmap(exarg_T *eap, int isabbrev) +{ + int mode; + char_u *cmdp; + + cmdp = eap->cmd; + mode = get_map_mode(&cmdp, eap->forceit || isabbrev); + + switch (do_map((*cmdp == 'n') ? 2 : (*cmdp == 'u'), + eap->arg, mode, isabbrev)) { + case 1: EMSG(_(e_invarg)); + break; + case 2: EMSG(isabbrev ? _(e_noabbr) : _(e_nomap)); + break; + } +} + +/* + * ":winsize" command (obsolete). + */ +static void ex_winsize(exarg_T *eap) +{ + int w, h; + char_u *arg = eap->arg; + char_u *p; + + w = getdigits(&arg); + arg = skipwhite(arg); + p = arg; + h = getdigits(&arg); + if (*p != NUL && *arg == NUL) + set_shellsize(w, h, TRUE); + else + EMSG(_("E465: :winsize requires two number arguments")); +} + +static void ex_wincmd(exarg_T *eap) +{ + int xchar = NUL; + char_u *p; + + if (*eap->arg == 'g' || *eap->arg == Ctrl_G) { + /* CTRL-W g and CTRL-W CTRL-G have an extra command character */ + if (eap->arg[1] == NUL) { + EMSG(_(e_invarg)); + return; + } + xchar = eap->arg[1]; + p = eap->arg + 2; + } else + p = eap->arg + 1; + + eap->nextcmd = check_nextcmd(p); + p = skipwhite(p); + if (*p != NUL && *p != '"' && eap->nextcmd == NULL) + EMSG(_(e_invarg)); + else if (!eap->skip) { + /* Pass flags on for ":vertical wincmd ]". */ + postponed_split_flags = cmdmod.split; + postponed_split_tab = cmdmod.tab; + do_window(*eap->arg, eap->addr_count > 0 ? eap->line2 : 0L, xchar); + postponed_split_flags = 0; + postponed_split_tab = 0; + } +} + +#if defined(FEAT_GUI) || defined(UNIX) || defined(MSWIN) +/* + * ":winpos". + */ +static void ex_winpos(eap) +exarg_T *eap; +{ + int x, y; + char_u *arg = eap->arg; + char_u *p; + + if (*arg == NUL) { + EMSG(_("E188: Obtaining window position not implemented for this platform")); + } else { + x = getdigits(&arg); + arg = skipwhite(arg); + p = arg; + y = getdigits(&arg); + if (*p == NUL || *arg != NUL) { + EMSG(_("E466: :winpos requires two number arguments")); + return; + } +# ifdef HAVE_TGETENT + if (*T_CWP) + term_set_winpos(x, y); +# endif + } +} +#endif + +/* + * Handle command that work like operators: ":delete", ":yank", ":>" and ":<". + */ +static void ex_operators(exarg_T *eap) +{ + oparg_T oa; + + clear_oparg(&oa); + oa.regname = eap->regname; + oa.start.lnum = eap->line1; + oa.end.lnum = eap->line2; + oa.line_count = eap->line2 - eap->line1 + 1; + oa.motion_type = MLINE; + virtual_op = FALSE; + if (eap->cmdidx != CMD_yank) { /* position cursor for undo */ + setpcmark(); + curwin->w_cursor.lnum = eap->line1; + beginline(BL_SOL | BL_FIX); + } + + if (VIsual_active) + end_visual_mode(); + + switch (eap->cmdidx) { + case CMD_delete: + oa.op_type = OP_DELETE; + op_delete(&oa); + break; + + case CMD_yank: + oa.op_type = OP_YANK; + (void)op_yank(&oa, FALSE, TRUE); + break; + + default: /* CMD_rshift or CMD_lshift */ + if ( + (eap->cmdidx == CMD_rshift) ^ curwin->w_p_rl + ) + oa.op_type = OP_RSHIFT; + else + oa.op_type = OP_LSHIFT; + op_shift(&oa, FALSE, eap->amount); + break; + } + virtual_op = MAYBE; + ex_may_print(eap); +} + +/* + * ":put". + */ +static void ex_put(exarg_T *eap) +{ + /* ":0put" works like ":1put!". */ + if (eap->line2 == 0) { + eap->line2 = 1; + eap->forceit = TRUE; + } + curwin->w_cursor.lnum = eap->line2; + do_put(eap->regname, eap->forceit ? BACKWARD : FORWARD, 1L, + PUT_LINE|PUT_CURSLINE); +} + +/* + * Handle ":copy" and ":move". + */ +static void ex_copymove(exarg_T *eap) +{ + long n; + + n = get_address(&eap->arg, FALSE, FALSE); + if (eap->arg == NULL) { /* error detected */ + eap->nextcmd = NULL; + return; + } + get_flags(eap); + + /* + * move or copy lines from 'eap->line1'-'eap->line2' to below line 'n' + */ + if (n == MAXLNUM || n < 0 || n > curbuf->b_ml.ml_line_count) { + EMSG(_(e_invaddr)); + return; + } + + if (eap->cmdidx == CMD_move) { + if (do_move(eap->line1, eap->line2, n) == FAIL) + return; + } else + ex_copy(eap->line1, eap->line2, n); + u_clearline(); + beginline(BL_SOL | BL_FIX); + ex_may_print(eap); +} + +/* + * Print the current line if flags were given to the Ex command. + */ +void ex_may_print(exarg_T *eap) +{ + if (eap->flags != 0) { + print_line(curwin->w_cursor.lnum, (eap->flags & EXFLAG_NR), + (eap->flags & EXFLAG_LIST)); + ex_no_reprint = TRUE; + } +} + +/* + * ":smagic" and ":snomagic". + */ +static void ex_submagic(exarg_T *eap) +{ + int magic_save = p_magic; + + p_magic = (eap->cmdidx == CMD_smagic); + do_sub(eap); + p_magic = magic_save; +} + +/* + * ":join". + */ +static void ex_join(exarg_T *eap) +{ + curwin->w_cursor.lnum = eap->line1; + if (eap->line1 == eap->line2) { + if (eap->addr_count >= 2) /* :2,2join does nothing */ + return; + if (eap->line2 == curbuf->b_ml.ml_line_count) { + beep_flush(); + return; + } + ++eap->line2; + } + (void)do_join(eap->line2 - eap->line1 + 1, !eap->forceit, TRUE, TRUE); + beginline(BL_WHITE | BL_FIX); + ex_may_print(eap); +} + +/* + * ":[addr]@r" or ":[addr]*r": execute register + */ +static void ex_at(exarg_T *eap) +{ + int c; + int prev_len = typebuf.tb_len; + + curwin->w_cursor.lnum = eap->line2; + +#ifdef USE_ON_FLY_SCROLL + dont_scroll = TRUE; /* disallow scrolling here */ +#endif + + /* get the register name. No name means to use the previous one */ + c = *eap->arg; + if (c == NUL || (c == '*' && *eap->cmd == '*')) + c = '@'; + /* Put the register in the typeahead buffer with the "silent" flag. */ + if (do_execreg(c, TRUE, vim_strchr(p_cpo, CPO_EXECBUF) != NULL, TRUE) + == FAIL) { + beep_flush(); + } else { + int save_efr = exec_from_reg; + + exec_from_reg = TRUE; + + /* + * Execute from the typeahead buffer. + * Continue until the stuff buffer is empty and all added characters + * have been consumed. + */ + while (!stuff_empty() || typebuf.tb_len > prev_len) + (void)do_cmdline(NULL, getexline, NULL, DOCMD_NOWAIT|DOCMD_VERBOSE); + + exec_from_reg = save_efr; + } +} + +/* + * ":!". + */ +static void ex_bang(exarg_T *eap) +{ + do_bang(eap->addr_count, eap, eap->forceit, TRUE, TRUE); +} + +/* + * ":undo". + */ +static void ex_undo(exarg_T *eap) +{ + if (eap->addr_count == 1) /* :undo 123 */ + undo_time(eap->line2, FALSE, FALSE, TRUE); + else + u_undo(1); +} + +static void ex_wundo(exarg_T *eap) +{ + char_u hash[UNDO_HASH_SIZE]; + + u_compute_hash(hash); + u_write_undo(eap->arg, eap->forceit, curbuf, hash); +} + +static void ex_rundo(exarg_T *eap) +{ + char_u hash[UNDO_HASH_SIZE]; + + u_compute_hash(hash); + u_read_undo(eap->arg, hash, NULL); +} + +/* + * ":redo". + */ +static void ex_redo(exarg_T *eap) +{ + u_redo(1); +} + +/* + * ":earlier" and ":later". + */ +static void ex_later(exarg_T *eap) +{ + long count = 0; + int sec = FALSE; + int file = FALSE; + char_u *p = eap->arg; + + if (*p == NUL) + count = 1; + else if (isdigit(*p)) { + count = getdigits(&p); + switch (*p) { + case 's': ++p; sec = TRUE; break; + case 'm': ++p; sec = TRUE; count *= 60; break; + case 'h': ++p; sec = TRUE; count *= 60 * 60; break; + case 'd': ++p; sec = TRUE; count *= 24 * 60 * 60; break; + case 'f': ++p; file = TRUE; break; + } + } + + if (*p != NUL) + EMSG2(_(e_invarg2), eap->arg); + else + undo_time(eap->cmdidx == CMD_earlier ? -count : count, + sec, file, FALSE); +} + +/* + * ":redir": start/stop redirection. + */ +static void ex_redir(exarg_T *eap) +{ + char *mode; + char_u *fname; + char_u *arg = eap->arg; + + if (STRICMP(eap->arg, "END") == 0) + close_redir(); + else { + if (*arg == '>') { + ++arg; + if (*arg == '>') { + ++arg; + mode = "a"; + } else + mode = "w"; + arg = skipwhite(arg); + + close_redir(); + + /* Expand environment variables and "~/". */ + fname = expand_env_save(arg); + if (fname == NULL) + return; + + redir_fd = open_exfile(fname, eap->forceit, mode); + free(fname); + } else if (*arg == '@') { + /* redirect to a register a-z (resp. A-Z for appending) */ + close_redir(); + ++arg; + if (ASCII_ISALPHA(*arg) + || *arg == '"') { + redir_reg = *arg++; + if (*arg == '>' && arg[1] == '>') /* append */ + arg += 2; + else { + /* Can use both "@a" and "@a>". */ + if (*arg == '>') + arg++; + /* Make register empty when not using @A-@Z and the + * command is valid. */ + if (*arg == NUL && !isupper(redir_reg)) + write_reg_contents(redir_reg, (char_u *)"", -1, FALSE); + } + } + if (*arg != NUL) { + redir_reg = 0; + EMSG2(_(e_invarg2), eap->arg); + } + } else if (*arg == '=' && arg[1] == '>') { + int append; + + /* redirect to a variable */ + close_redir(); + arg += 2; + + if (*arg == '>') { + ++arg; + append = TRUE; + } else + append = FALSE; + + if (var_redir_start(skipwhite(arg), append) == OK) + redir_vname = 1; + } + /* TODO: redirect to a buffer */ + else + EMSG2(_(e_invarg2), eap->arg); + } + + /* Make sure redirection is not off. Can happen for cmdline completion + * that indirectly invokes a command to catch its output. */ + if (redir_fd != NULL + || redir_reg || redir_vname + ) + redir_off = FALSE; +} + +/* + * ":redraw": force redraw + */ +static void ex_redraw(exarg_T *eap) +{ + int r = RedrawingDisabled; + int p = p_lz; + + RedrawingDisabled = 0; + p_lz = FALSE; + update_topline(); + update_screen(eap->forceit ? CLEAR : + VIsual_active ? INVERTED : + 0); + if (need_maketitle) + maketitle(); + RedrawingDisabled = r; + p_lz = p; + + /* Reset msg_didout, so that a message that's there is overwritten. */ + msg_didout = FALSE; + msg_col = 0; + + /* No need to wait after an intentional redraw. */ + need_wait_return = FALSE; + + out_flush(); +} + +/* + * ":redrawstatus": force redraw of status line(s) + */ +static void ex_redrawstatus(exarg_T *eap) +{ + int r = RedrawingDisabled; + int p = p_lz; + + RedrawingDisabled = 0; + p_lz = FALSE; + if (eap->forceit) + status_redraw_all(); + else + status_redraw_curbuf(); + update_screen( + VIsual_active ? INVERTED : + 0); + RedrawingDisabled = r; + p_lz = p; + out_flush(); +} + +static void close_redir(void) +{ + if (redir_fd != NULL) { + fclose(redir_fd); + redir_fd = NULL; + } + redir_reg = 0; + if (redir_vname) { + var_redir_stop(); + redir_vname = 0; + } +} + +#if defined(FEAT_SESSION) && defined(USE_CRNL) +# define MKSESSION_NL +static int mksession_nl = FALSE; /* use NL only in put_eol() */ +#endif + +/* + * ":mkexrc", ":mkvimrc", ":mkview" and ":mksession". + */ +static void ex_mkrc(exarg_T *eap) +{ + FILE *fd; + int failed = FALSE; + char_u *fname; + int view_session = FALSE; + int using_vdir = FALSE; /* using 'viewdir'? */ + char_u *viewFile = NULL; + unsigned *flagp; + + if (eap->cmdidx == CMD_mksession || eap->cmdidx == CMD_mkview) { + view_session = TRUE; + } + + /* Use the short file name until ":lcd" is used. We also don't use the + * short file name when 'acd' is set, that is checked later. */ + did_lcd = FALSE; + + /* ":mkview" or ":mkview 9": generate file name with 'viewdir' */ + if (eap->cmdidx == CMD_mkview + && (*eap->arg == NUL + || (vim_isdigit(*eap->arg) && eap->arg[1] == NUL))) { + eap->forceit = TRUE; + fname = get_view_file(*eap->arg); + if (fname == NULL) + return; + viewFile = fname; + using_vdir = TRUE; + } else if (*eap->arg != NUL) + fname = eap->arg; + else if (eap->cmdidx == CMD_mkvimrc) + fname = (char_u *)VIMRC_FILE; + else if (eap->cmdidx == CMD_mksession) + fname = (char_u *)SESSION_FILE; + else + fname = (char_u *)EXRC_FILE; + + /* When using 'viewdir' may have to create the directory. */ + if (using_vdir && !os_isdir(p_vdir)) { + vim_mkdir_emsg(p_vdir, 0755); + } + + fd = open_exfile(fname, eap->forceit, WRITEBIN); + if (fd != NULL) { + if (eap->cmdidx == CMD_mkview) + flagp = &vop_flags; + else + flagp = &ssop_flags; + +#ifdef MKSESSION_NL + /* "unix" in 'sessionoptions': use NL line separator */ + if (view_session && (*flagp & SSOP_UNIX)) + mksession_nl = TRUE; +#endif + + /* Write the version command for :mkvimrc */ + if (eap->cmdidx == CMD_mkvimrc) + (void)put_line(fd, "version 6.0"); + + if (eap->cmdidx == CMD_mksession) { + if (put_line(fd, "let SessionLoad = 1") == FAIL) + failed = TRUE; + } + + if (eap->cmdidx != CMD_mkview) { + /* Write setting 'compatible' first, because it has side effects. + * For that same reason only do it when needed. */ + if (p_cp) + (void)put_line(fd, "if !&cp | set cp | endif"); + else + (void)put_line(fd, "if &cp | set nocp | endif"); + } + + if (!view_session + || (eap->cmdidx == CMD_mksession + && (*flagp & SSOP_OPTIONS))) + failed |= (makemap(fd, NULL) == FAIL + || makeset(fd, OPT_GLOBAL, FALSE) == FAIL); + + if (!failed && view_session) { + if (put_line(fd, + "let s:so_save = &so | let s:siso_save = &siso | set so=0 siso=0") + == FAIL) + failed = TRUE; + if (eap->cmdidx == CMD_mksession) { + char_u *dirnow; /* current directory */ + + dirnow = xmalloc(MAXPATHL); + /* + * Change to session file's dir. + */ + if (os_dirname(dirnow, MAXPATHL) == FAIL + || os_chdir((char *)dirnow) != 0) + *dirnow = NUL; + if (*dirnow != NUL && (ssop_flags & SSOP_SESDIR)) { + if (vim_chdirfile(fname) == OK) + shorten_fnames(TRUE); + } else if (*dirnow != NUL + && (ssop_flags & SSOP_CURDIR) && globaldir != NULL) { + if (os_chdir((char *)globaldir) == 0) + shorten_fnames(TRUE); + } + + failed |= (makeopens(fd, dirnow) == FAIL); + + /* restore original dir */ + if (*dirnow != NUL && ((ssop_flags & SSOP_SESDIR) + || ((ssop_flags & SSOP_CURDIR) && globaldir != + NULL))) { + if (os_chdir((char *)dirnow) != 0) + EMSG(_(e_prev_dir)); + shorten_fnames(TRUE); + /* restore original dir */ + if (*dirnow != NUL && ((ssop_flags & SSOP_SESDIR) + || ((ssop_flags & SSOP_CURDIR) && globaldir != + NULL))) { + if (os_chdir((char *)dirnow) != 0) + EMSG(_(e_prev_dir)); + shorten_fnames(TRUE); + } + } + free(dirnow); + } else { + failed |= (put_view(fd, curwin, !using_vdir, flagp, + -1) == FAIL); + } + if (put_line(fd, "let &so = s:so_save | let &siso = s:siso_save") + == FAIL) + failed = TRUE; + if (put_line(fd, "doautoall SessionLoadPost") == FAIL) + failed = TRUE; + if (eap->cmdidx == CMD_mksession) { + if (put_line(fd, "unlet SessionLoad") == FAIL) + failed = TRUE; + } + } + if (put_line(fd, "\" vim: set ft=vim :") == FAIL) + failed = TRUE; + + failed |= fclose(fd); + + if (failed) + EMSG(_(e_write)); + else if (eap->cmdidx == CMD_mksession) { + /* successful session write - set this_session var */ + char_u *tbuf; + + tbuf = xmalloc(MAXPATHL); + if (vim_FullName(fname, tbuf, MAXPATHL, FALSE) == OK) + set_vim_var_string(VV_THIS_SESSION, tbuf, -1); + free(tbuf); + } +#ifdef MKSESSION_NL + mksession_nl = FALSE; +#endif + } + + free(viewFile); +} + +int vim_mkdir_emsg(char_u *name, int prot) +{ + if (os_mkdir((char *)name, prot) != 0) { + EMSG2(_("E739: Cannot create directory: %s"), name); + return FAIL; + } + return OK; +} + +/* + * Open a file for writing for an Ex command, with some checks. + * Return file descriptor, or NULL on failure. + */ +FILE * +open_exfile ( + char_u *fname, + int forceit, + char *mode /* "w" for create new file or "a" for append */ +) +{ + FILE *fd; + +#ifdef UNIX + /* with Unix it is possible to open a directory */ + if (os_isdir(fname)) { + EMSG2(_(e_isadir2), fname); + return NULL; + } +#endif + if (!forceit && *mode != 'a' && os_file_exists(fname)) { + EMSG2(_("E189: \"%s\" exists (add ! to override)"), fname); + return NULL; + } + + if ((fd = mch_fopen((char *)fname, mode)) == NULL) + EMSG2(_("E190: Cannot open \"%s\" for writing"), fname); + + return fd; +} + +/* + * ":mark" and ":k". + */ +static void ex_mark(exarg_T *eap) +{ + pos_T pos; + + if (*eap->arg == NUL) /* No argument? */ + EMSG(_(e_argreq)); + else if (eap->arg[1] != NUL) /* more than one character? */ + EMSG(_(e_trailing)); + else { + pos = curwin->w_cursor; /* save curwin->w_cursor */ + curwin->w_cursor.lnum = eap->line2; + beginline(BL_WHITE | BL_FIX); + if (setmark(*eap->arg) == FAIL) /* set mark */ + EMSG(_("E191: Argument must be a letter or forward/backward quote")); + curwin->w_cursor = pos; /* restore curwin->w_cursor */ + } +} + +/* + * Update w_topline, w_leftcol and the cursor position. + */ +void update_topline_cursor(void) +{ + check_cursor(); /* put cursor on valid line */ + update_topline(); + if (!curwin->w_p_wrap) + validate_cursor(); + update_curswant(); +} + +/* + * ":normal[!] {commands}": Execute normal mode commands. + */ +static void ex_normal(exarg_T *eap) +{ + int save_msg_scroll = msg_scroll; + int save_restart_edit = restart_edit; + int save_msg_didout = msg_didout; + int save_State = State; + tasave_T tabuf; + int save_insertmode = p_im; + int save_finish_op = finish_op; + int save_opcount = opcount; + char_u *arg = NULL; + int l; + char_u *p; + + if (ex_normal_lock > 0) { + EMSG(_(e_secure)); + return; + } + if (ex_normal_busy >= p_mmd) { + EMSG(_("E192: Recursive use of :normal too deep")); + return; + } + ++ex_normal_busy; + + msg_scroll = FALSE; /* no msg scrolling in Normal mode */ + restart_edit = 0; /* don't go to Insert mode */ + p_im = FALSE; /* don't use 'insertmode' */ + + /* + * vgetc() expects a CSI and K_SPECIAL to have been escaped. Don't do + * this for the K_SPECIAL leading byte, otherwise special keys will not + * work. + */ + if (has_mbyte) { + int len = 0; + + /* Count the number of characters to be escaped. */ + for (p = eap->arg; *p != NUL; ++p) { + for (l = (*mb_ptr2len)(p) - 1; l > 0; --l) + if (*++p == K_SPECIAL /* trailbyte K_SPECIAL or CSI */ + ) + len += 2; + } + if (len > 0) { + arg = xmalloc(STRLEN(eap->arg) + len + 1); + len = 0; + for (p = eap->arg; *p != NUL; ++p) { + arg[len++] = *p; + for (l = (*mb_ptr2len)(p) - 1; l > 0; --l) { + arg[len++] = *++p; + if (*p == K_SPECIAL) { + arg[len++] = KS_SPECIAL; + arg[len++] = KE_FILLER; + } + } + arg[len] = NUL; + } + } + } + + /* + * Save the current typeahead. This is required to allow using ":normal" + * from an event handler and makes sure we don't hang when the argument + * ends with half a command. + */ + save_typeahead(&tabuf); + if (tabuf.typebuf_valid) { + /* + * Repeat the :normal command for each line in the range. When no + * range given, execute it just once, without positioning the cursor + * first. + */ + do { + if (eap->addr_count != 0) { + curwin->w_cursor.lnum = eap->line1++; + curwin->w_cursor.col = 0; + } + + exec_normal_cmd( + arg != NULL ? arg : + eap->arg, eap->forceit ? REMAP_NONE : REMAP_YES, FALSE); + } while (eap->addr_count > 0 && eap->line1 <= eap->line2 && !got_int); + } + + /* Might not return to the main loop when in an event handler. */ + update_topline_cursor(); + + /* Restore the previous typeahead. */ + restore_typeahead(&tabuf); + + --ex_normal_busy; + msg_scroll = save_msg_scroll; + restart_edit = save_restart_edit; + p_im = save_insertmode; + finish_op = save_finish_op; + opcount = save_opcount; + msg_didout |= save_msg_didout; /* don't reset msg_didout now */ + + /* Restore the state (needed when called from a function executed for + * 'indentexpr'). */ + State = save_State; + free(arg); +} + +/* + * ":startinsert", ":startreplace" and ":startgreplace" + */ +static void ex_startinsert(exarg_T *eap) +{ + if (eap->forceit) { + coladvance((colnr_T)MAXCOL); + curwin->w_curswant = MAXCOL; + curwin->w_set_curswant = FALSE; + } + + /* Ignore the command when already in Insert mode. Inserting an + * expression register that invokes a function can do this. */ + if (State & INSERT) + return; + + if (eap->cmdidx == CMD_startinsert) + restart_edit = 'a'; + else if (eap->cmdidx == CMD_startreplace) + restart_edit = 'R'; + else + restart_edit = 'V'; + + if (!eap->forceit) { + if (eap->cmdidx == CMD_startinsert) + restart_edit = 'i'; + curwin->w_curswant = 0; /* avoid MAXCOL */ + } +} + +/* + * ":stopinsert" + */ +static void ex_stopinsert(exarg_T *eap) +{ + restart_edit = 0; + stop_insert_mode = TRUE; +} + +/* + * Execute normal mode command "cmd". + * "remap" can be REMAP_NONE or REMAP_YES. + */ +void exec_normal_cmd(char_u *cmd, int remap, int silent) +{ + oparg_T oa; + + /* + * Stuff the argument into the typeahead buffer. + * Execute normal_cmd() until there is no typeahead left. + */ + clear_oparg(&oa); + finish_op = FALSE; + ins_typebuf(cmd, remap, 0, TRUE, silent); + while ((!stuff_empty() || (!typebuf_typed() && typebuf.tb_len > 0)) + && !got_int) { + update_topline_cursor(); + normal_cmd(&oa, TRUE); /* execute a Normal mode cmd */ + } +} + +static void ex_checkpath(exarg_T *eap) +{ + find_pattern_in_path(NULL, 0, 0, FALSE, FALSE, CHECK_PATH, 1L, + eap->forceit ? ACTION_SHOW_ALL : ACTION_SHOW, + (linenr_T)1, (linenr_T)MAXLNUM); +} + +/* + * ":psearch" + */ +static void ex_psearch(exarg_T *eap) +{ + g_do_tagpreview = p_pvh; + ex_findpat(eap); + g_do_tagpreview = 0; +} + +static void ex_findpat(exarg_T *eap) +{ + int whole = TRUE; + long n; + char_u *p; + int action; + + switch (cmdnames[eap->cmdidx].cmd_name[2]) { + case 'e': /* ":psearch", ":isearch" and ":dsearch" */ + if (cmdnames[eap->cmdidx].cmd_name[0] == 'p') + action = ACTION_GOTO; + else + action = ACTION_SHOW; + break; + case 'i': /* ":ilist" and ":dlist" */ + action = ACTION_SHOW_ALL; + break; + case 'u': /* ":ijump" and ":djump" */ + action = ACTION_GOTO; + break; + default: /* ":isplit" and ":dsplit" */ + action = ACTION_SPLIT; + break; + } + + n = 1; + if (vim_isdigit(*eap->arg)) { /* get count */ + n = getdigits(&eap->arg); + eap->arg = skipwhite(eap->arg); + } + if (*eap->arg == '/') { /* Match regexp, not just whole words */ + whole = FALSE; + ++eap->arg; + p = skip_regexp(eap->arg, '/', p_magic, NULL); + if (*p) { + *p++ = NUL; + p = skipwhite(p); + + /* Check for trailing illegal characters */ + if (!ends_excmd(*p)) + eap->errmsg = e_trailing; + else + eap->nextcmd = check_nextcmd(p); + } + } + if (!eap->skip) + find_pattern_in_path(eap->arg, 0, (int)STRLEN(eap->arg), + whole, !eap->forceit, + *eap->cmd == 'd' ? FIND_DEFINE : FIND_ANY, + n, action, eap->line1, eap->line2); +} + + +/* + * ":ptag", ":ptselect", ":ptjump", ":ptnext", etc. + */ +static void ex_ptag(exarg_T *eap) +{ + g_do_tagpreview = p_pvh; /* will be reset to 0 in ex_tag_cmd() */ + ex_tag_cmd(eap, cmdnames[eap->cmdidx].cmd_name + 1); +} + +/* + * ":pedit" + */ +static void ex_pedit(exarg_T *eap) +{ + win_T *curwin_save = curwin; + + g_do_tagpreview = p_pvh; + prepare_tagpreview(TRUE); + keep_help_flag = curwin_save->w_buffer->b_help; + do_exedit(eap, NULL); + keep_help_flag = FALSE; + if (curwin != curwin_save && win_valid(curwin_save)) { + /* Return cursor to where we were */ + validate_cursor(); + redraw_later(VALID); + win_enter(curwin_save, TRUE); + } + g_do_tagpreview = 0; +} + +/* + * ":stag", ":stselect" and ":stjump". + */ +static void ex_stag(exarg_T *eap) +{ + postponed_split = -1; + postponed_split_flags = cmdmod.split; + postponed_split_tab = cmdmod.tab; + ex_tag_cmd(eap, cmdnames[eap->cmdidx].cmd_name + 1); + postponed_split_flags = 0; + postponed_split_tab = 0; +} + +/* + * ":tag", ":tselect", ":tjump", ":tnext", etc. + */ +static void ex_tag(exarg_T *eap) +{ + ex_tag_cmd(eap, cmdnames[eap->cmdidx].cmd_name); +} + +static void ex_tag_cmd(exarg_T *eap, char_u *name) +{ + int cmd; + + switch (name[1]) { + case 'j': cmd = DT_JUMP; /* ":tjump" */ + break; + case 's': cmd = DT_SELECT; /* ":tselect" */ + break; + case 'p': cmd = DT_PREV; /* ":tprevious" */ + break; + case 'N': cmd = DT_PREV; /* ":tNext" */ + break; + case 'n': cmd = DT_NEXT; /* ":tnext" */ + break; + case 'o': cmd = DT_POP; /* ":pop" */ + break; + case 'f': /* ":tfirst" */ + case 'r': cmd = DT_FIRST; /* ":trewind" */ + break; + case 'l': cmd = DT_LAST; /* ":tlast" */ + break; + default: /* ":tag" */ + if (p_cst && *eap->arg != NUL) { + do_cstag(eap); + return; + } + cmd = DT_TAG; + break; + } + + if (name[0] == 'l') { + cmd = DT_LTAG; + } + + do_tag(eap->arg, cmd, eap->addr_count > 0 ? (int)eap->line2 : 1, + eap->forceit, TRUE); +} + +/* + * Check "str" for starting with a special cmdline variable. + * If found return one of the SPEC_ values and set "*usedlen" to the length of + * the variable. Otherwise return -1 and "*usedlen" is unchanged. + */ +int find_cmdline_var(char_u *src, int *usedlen) +{ + int len; + int i; + static char *(spec_str[]) = { + "%", +#define SPEC_PERC 0 + "#", +#define SPEC_HASH 1 + "<cword>", /* cursor word */ +#define SPEC_CWORD 2 + "<cWORD>", /* cursor WORD */ +#define SPEC_CCWORD 3 + "<cfile>", /* cursor path name */ +#define SPEC_CFILE 4 + "<sfile>", /* ":so" file name */ +#define SPEC_SFILE 5 + "<slnum>", /* ":so" file line number */ +#define SPEC_SLNUM 6 + "<afile>", /* autocommand file name */ +# define SPEC_AFILE 7 + "<abuf>", /* autocommand buffer number */ +# define SPEC_ABUF 8 + "<amatch>", /* autocommand match name */ +# define SPEC_AMATCH 9 + }; + + for (i = 0; i < (int)(sizeof(spec_str) / sizeof(char *)); ++i) { + len = (int)STRLEN(spec_str[i]); + if (STRNCMP(src, spec_str[i], len) == 0) { + *usedlen = len; + return i; + } + } + return -1; +} + +/* + * Evaluate cmdline variables. + * + * change '%' to curbuf->b_ffname + * '#' to curwin->w_altfile + * '<cword>' to word under the cursor + * '<cWORD>' to WORD under the cursor + * '<cfile>' to path name under the cursor + * '<sfile>' to sourced file name + * '<slnum>' to sourced file line number + * '<afile>' to file name for autocommand + * '<abuf>' to buffer number for autocommand + * '<amatch>' to matching name for autocommand + * + * When an error is detected, "errormsg" is set to a non-NULL pointer (may be + * "" for error without a message) and NULL is returned. + * Returns an allocated string if a valid match was found. + * Returns NULL if no match was found. "usedlen" then still contains the + * number of characters to skip. + */ +char_u * +eval_vars ( + char_u *src, /* pointer into commandline */ + char_u *srcstart, /* beginning of valid memory for src */ + int *usedlen, /* characters after src that are used */ + linenr_T *lnump, /* line number for :e command, or NULL */ + char_u **errormsg, /* pointer to error message */ + int *escaped /* return value has escaped white space (can + * be NULL) */ +) +{ + int i; + char_u *s; + char_u *result; + char_u *resultbuf = NULL; + int resultlen; + buf_T *buf; + int valid = VALID_HEAD + VALID_PATH; /* assume valid result */ + int spec_idx; + int skip_mod = FALSE; + char_u strbuf[30]; + + *errormsg = NULL; + if (escaped != NULL) + *escaped = FALSE; + + /* + * Check if there is something to do. + */ + spec_idx = find_cmdline_var(src, usedlen); + if (spec_idx < 0) { /* no match */ + *usedlen = 1; + return NULL; + } + + /* + * Skip when preceded with a backslash "\%" and "\#". + * Note: In "\\%" the % is also not recognized! + */ + if (src > srcstart && src[-1] == '\\') { + *usedlen = 0; + STRMOVE(src - 1, src); /* remove backslash */ + return NULL; + } + + /* + * word or WORD under cursor + */ + if (spec_idx == SPEC_CWORD || spec_idx == SPEC_CCWORD) { + resultlen = find_ident_under_cursor(&result, spec_idx == SPEC_CWORD ? + (FIND_IDENT|FIND_STRING) : FIND_STRING); + if (resultlen == 0) { + *errormsg = (char_u *)""; + return NULL; + } + } + /* + * '#': Alternate file name + * '%': Current file name + * File name under the cursor + * File name for autocommand + * and following modifiers + */ + else { + switch (spec_idx) { + case SPEC_PERC: /* '%': current file */ + if (curbuf->b_fname == NULL) { + result = (char_u *)""; + valid = 0; /* Must have ":p:h" to be valid */ + } else + result = curbuf->b_fname; + break; + + case SPEC_HASH: /* '#' or "#99": alternate file */ + if (src[1] == '#') { /* "##": the argument list */ + result = arg_all(); + resultbuf = result; + *usedlen = 2; + if (escaped != NULL) + *escaped = TRUE; + skip_mod = TRUE; + break; + } + s = src + 1; + if (*s == '<') /* "#<99" uses v:oldfiles */ + ++s; + i = (int)getdigits(&s); + *usedlen = (int)(s - src); /* length of what we expand */ + + if (src[1] == '<') { + if (*usedlen < 2) { + /* Should we give an error message for #<text? */ + *usedlen = 1; + return NULL; + } + result = list_find_str(get_vim_var_list(VV_OLDFILES), + (long)i); + if (result == NULL) { + *errormsg = (char_u *)""; + return NULL; + } + } else { + buf = buflist_findnr(i); + if (buf == NULL) { + *errormsg = (char_u *)_( + "E194: No alternate file name to substitute for '#'"); + return NULL; + } + if (lnump != NULL) + *lnump = ECMD_LAST; + if (buf->b_fname == NULL) { + result = (char_u *)""; + valid = 0; /* Must have ":p:h" to be valid */ + } else + result = buf->b_fname; + } + break; + + case SPEC_CFILE: /* file name under cursor */ + result = file_name_at_cursor(FNAME_MESS|FNAME_HYP, 1L, NULL); + if (result == NULL) { + *errormsg = (char_u *)""; + return NULL; + } + resultbuf = result; /* remember allocated string */ + break; + + case SPEC_AFILE: /* file name for autocommand */ + result = autocmd_fname; + if (result != NULL && !autocmd_fname_full) { + /* Still need to turn the fname into a full path. It is + * postponed to avoid a delay when <afile> is not used. */ + autocmd_fname_full = TRUE; + result = FullName_save(autocmd_fname, FALSE); + free(autocmd_fname); + autocmd_fname = result; + } + if (result == NULL) { + *errormsg = (char_u *)_( + "E495: no autocommand file name to substitute for \"<afile>\""); + return NULL; + } + result = path_shorten_fname_if_possible(result); + break; + + case SPEC_ABUF: /* buffer number for autocommand */ + if (autocmd_bufnr <= 0) { + *errormsg = (char_u *)_( + "E496: no autocommand buffer number to substitute for \"<abuf>\""); + return NULL; + } + sprintf((char *)strbuf, "%d", autocmd_bufnr); + result = strbuf; + break; + + case SPEC_AMATCH: /* match name for autocommand */ + result = autocmd_match; + if (result == NULL) { + *errormsg = (char_u *)_( + "E497: no autocommand match name to substitute for \"<amatch>\""); + return NULL; + } + break; + + case SPEC_SFILE: /* file name for ":so" command */ + result = sourcing_name; + if (result == NULL) { + *errormsg = (char_u *)_( + "E498: no :source file name to substitute for \"<sfile>\""); + return NULL; + } + break; + case SPEC_SLNUM: /* line in file for ":so" command */ + if (sourcing_name == NULL || sourcing_lnum == 0) { + *errormsg = (char_u *)_("E842: no line number to use for \"<slnum>\""); + return NULL; + } + sprintf((char *)strbuf, "%" PRId64, (int64_t)sourcing_lnum); + result = strbuf; + break; + } + + resultlen = (int)STRLEN(result); /* length of new string */ + if (src[*usedlen] == '<') { /* remove the file name extension */ + ++*usedlen; + if ((s = vim_strrchr(result, '.')) != NULL && s >= path_tail(result)) + resultlen = (int)(s - result); + } else if (!skip_mod) { + valid |= modify_fname(src, usedlen, &result, &resultbuf, + &resultlen); + if (result == NULL) { + *errormsg = (char_u *)""; + return NULL; + } + } + } + + if (resultlen == 0 || valid != VALID_HEAD + VALID_PATH) { + if (valid != VALID_HEAD + VALID_PATH) + /* xgettext:no-c-format */ + *errormsg = (char_u *)_( + "E499: Empty file name for '%' or '#', only works with \":p:h\""); + else + *errormsg = (char_u *)_("E500: Evaluates to an empty string"); + result = NULL; + } else + result = vim_strnsave(result, resultlen); + free(resultbuf); + return result; +} + +/* + * Concatenate all files in the argument list, separated by spaces, and return + * it in one allocated string. + * Spaces and backslashes in the file names are escaped with a backslash. + */ +static char_u *arg_all(void) +{ + int len; + int idx; + char_u *retval = NULL; + char_u *p; + + /* + * Do this loop two times: + * first time: compute the total length + * second time: concatenate the names + */ + for (;; ) { + len = 0; + for (idx = 0; idx < ARGCOUNT; ++idx) { + p = alist_name(&ARGLIST[idx]); + if (p != NULL) { + if (len > 0) { + /* insert a space in between names */ + if (retval != NULL) + retval[len] = ' '; + ++len; + } + for (; *p != NUL; ++p) { + if (*p == ' ' || *p == '\\') { + /* insert a backslash */ + if (retval != NULL) + retval[len] = '\\'; + ++len; + } + if (retval != NULL) + retval[len] = *p; + ++len; + } + } + } + + /* second time: break here */ + if (retval != NULL) { + retval[len] = NUL; + break; + } + + /* allocate memory */ + retval = xmalloc(len + 1); + } + + return retval; +} + +/* + * Expand the <sfile> string in "arg". + * + * Returns an allocated string, or NULL for any error. + */ +char_u *expand_sfile(char_u *arg) +{ + char_u *errormsg; + int len; + char_u *result; + char_u *newres; + char_u *repl; + int srclen; + char_u *p; + + result = vim_strsave(arg); + if (result == NULL) + return NULL; + + for (p = result; *p; ) { + if (STRNCMP(p, "<sfile>", 7) != 0) + ++p; + else { + /* replace "<sfile>" with the sourced file name, and do ":" stuff */ + repl = eval_vars(p, result, &srclen, NULL, &errormsg, NULL); + if (errormsg != NULL) { + if (*errormsg) + emsg(errormsg); + free(result); + return NULL; + } + if (repl == NULL) { /* no match (cannot happen) */ + p += srclen; + continue; + } + len = (int)STRLEN(result) - srclen + (int)STRLEN(repl) + 1; + newres = xmalloc(len); + memmove(newres, result, (size_t)(p - result)); + STRCPY(newres + (p - result), repl); + len = (int)STRLEN(newres); + STRCAT(newres, p + srclen); + free(repl); + free(result); + result = newres; + p = newres + len; /* continue after the match */ + } + } + + return result; +} + +static int ses_winsizes(FILE *fd, int restore_size, win_T *tab_firstwin); +static int ses_win_rec(FILE *fd, frame_T *fr); +static frame_T *ses_skipframe(frame_T *fr); +static int ses_do_frame(frame_T *fr); +static int ses_do_win(win_T *wp); +static int ses_arglist(FILE *fd, char *cmd, garray_T *gap, int fullname, + unsigned *flagp); +static int ses_put_fname(FILE *fd, char_u *name, unsigned *flagp); +static int ses_fname(FILE *fd, buf_T *buf, unsigned *flagp); + +/* + * Write openfile commands for the current buffers to an .exrc file. + * Return FAIL on error, OK otherwise. + */ +static int +makeopens ( + FILE *fd, + char_u *dirnow /* Current directory name */ +) +{ + buf_T *buf; + int only_save_windows = TRUE; + int nr; + int cnr = 1; + int restore_size = TRUE; + win_T *wp; + char_u *sname; + win_T *edited_win = NULL; + int tabnr; + win_T *tab_firstwin; + frame_T *tab_topframe; + int cur_arg_idx = 0; + int next_arg_idx = 0; + + if (ssop_flags & SSOP_BUFFERS) + only_save_windows = FALSE; /* Save ALL buffers */ + + /* + * Begin by setting the this_session variable, and then other + * sessionable variables. + */ + if (put_line(fd, "let v:this_session=expand(\"<sfile>:p\")") == FAIL) + return FAIL; + if (ssop_flags & SSOP_GLOBALS) + if (store_session_globals(fd) == FAIL) + return FAIL; + + /* + * Close all windows but one. + */ + if (put_line(fd, "silent only") == FAIL) + return FAIL; + + /* + * Now a :cd command to the session directory or the current directory + */ + if (ssop_flags & SSOP_SESDIR) { + if (put_line(fd, "exe \"cd \" . escape(expand(\"<sfile>:p:h\"), ' ')") + == FAIL) + return FAIL; + } else if (ssop_flags & SSOP_CURDIR) { + sname = home_replace_save(NULL, globaldir != NULL ? globaldir : dirnow); + if (sname == NULL + || fputs("cd ", fd) < 0 + || ses_put_fname(fd, sname, &ssop_flags) == FAIL + || put_eol(fd) == FAIL) { + free(sname); + return FAIL; + } + free(sname); + } + + /* + * If there is an empty, unnamed buffer we will wipe it out later. + * Remember the buffer number. + */ + if (put_line(fd, + "if expand('%') == '' && !&modified && line('$') <= 1 && getline(1) == ''") + == + FAIL) + return FAIL; + if (put_line(fd, " let s:wipebuf = bufnr('%')") == FAIL) + return FAIL; + if (put_line(fd, "endif") == FAIL) + return FAIL; + + /* + * Now save the current files, current buffer first. + */ + if (put_line(fd, "set shortmess=aoO") == FAIL) + return FAIL; + + /* Now put the other buffers into the buffer list */ + for (buf = firstbuf; buf != NULL; buf = buf->b_next) { + if (!(only_save_windows && buf->b_nwindows == 0) + && !(buf->b_help && !(ssop_flags & SSOP_HELP)) + && buf->b_fname != NULL + && buf->b_p_bl) { + if (fprintf(fd, "badd +%" PRId64 " ", + buf->b_wininfo == NULL ? + (int64_t)1L : + (int64_t)buf->b_wininfo->wi_fpos.lnum) < 0 + || ses_fname(fd, buf, &ssop_flags) == FAIL) + return FAIL; + } + } + + /* the global argument list */ + if (ses_arglist(fd, "argglobal", &global_alist.al_ga, + !(ssop_flags & SSOP_CURDIR), &ssop_flags) == FAIL) { + return FAIL; + } + + if (ssop_flags & SSOP_RESIZE) { + /* Note: after the restore we still check it worked!*/ + if (fprintf(fd, "set lines=%" PRId64 " columns=%" PRId64, + (int64_t)Rows, (int64_t)Columns) < 0 + || put_eol(fd) == FAIL) + return FAIL; + } + + + /* + * May repeat putting Windows for each tab, when "tabpages" is in + * 'sessionoptions'. + * Don't use goto_tabpage(), it may change directory and trigger + * autocommands. + */ + tab_firstwin = firstwin; /* first window in tab page "tabnr" */ + tab_topframe = topframe; + for (tabnr = 1;; ++tabnr) { + int need_tabnew = FALSE; + + if ((ssop_flags & SSOP_TABPAGES)) { + tabpage_T *tp = find_tabpage(tabnr); + + if (tp == NULL) + break; /* done all tab pages */ + if (tp == curtab) { + tab_firstwin = firstwin; + tab_topframe = topframe; + } else { + tab_firstwin = tp->tp_firstwin; + tab_topframe = tp->tp_topframe; + } + if (tabnr > 1) + need_tabnew = TRUE; + } + + /* + * Before creating the window layout, try loading one file. If this + * is aborted we don't end up with a number of useless windows. + * This may have side effects! (e.g., compressed or network file). + */ + for (wp = tab_firstwin; wp != NULL; wp = wp->w_next) { + if (ses_do_win(wp) + && wp->w_buffer->b_ffname != NULL + && !wp->w_buffer->b_help + && !bt_nofile(wp->w_buffer) + ) { + if (fputs(need_tabnew ? "tabedit " : "edit ", fd) < 0 + || ses_fname(fd, wp->w_buffer, &ssop_flags) == FAIL) + return FAIL; + need_tabnew = FALSE; + if (!wp->w_arg_idx_invalid) + edited_win = wp; + break; + } + } + + /* If no file got edited create an empty tab page. */ + if (need_tabnew && put_line(fd, "tabnew") == FAIL) + return FAIL; + + /* + * Save current window layout. + */ + if (put_line(fd, "set splitbelow splitright") == FAIL) + return FAIL; + if (ses_win_rec(fd, tab_topframe) == FAIL) + return FAIL; + if (!p_sb && put_line(fd, "set nosplitbelow") == FAIL) + return FAIL; + if (!p_spr && put_line(fd, "set nosplitright") == FAIL) + return FAIL; + + /* + * Check if window sizes can be restored (no windows omitted). + * Remember the window number of the current window after restoring. + */ + nr = 0; + for (wp = tab_firstwin; wp != NULL; wp = W_NEXT(wp)) { + if (ses_do_win(wp)) + ++nr; + else + restore_size = FALSE; + if (curwin == wp) + cnr = nr; + } + + /* Go to the first window. */ + if (put_line(fd, "wincmd t") == FAIL) + return FAIL; + + /* + * If more than one window, see if sizes can be restored. + * First set 'winheight' and 'winwidth' to 1 to avoid the windows being + * resized when moving between windows. + * Do this before restoring the view, so that the topline and the + * cursor can be set. This is done again below. + */ + if (put_line(fd, "set winheight=1 winwidth=1") == FAIL) + return FAIL; + if (nr > 1 && ses_winsizes(fd, restore_size, tab_firstwin) == FAIL) + return FAIL; + + /* + * Restore the view of the window (options, file, cursor, etc.). + */ + for (wp = tab_firstwin; wp != NULL; wp = wp->w_next) { + if (!ses_do_win(wp)) + continue; + if (put_view(fd, wp, wp != edited_win, &ssop_flags, + cur_arg_idx) == FAIL) + return FAIL; + if (nr > 1 && put_line(fd, "wincmd w") == FAIL) + return FAIL; + next_arg_idx = wp->w_arg_idx; + } + + /* The argument index in the first tab page is zero, need to set it in + * each window. For further tab pages it's the window where we do + * "tabedit". */ + cur_arg_idx = next_arg_idx; + + /* + * Restore cursor to the current window if it's not the first one. + */ + if (cnr > 1 && (fprintf(fd, "%dwincmd w", cnr) < 0 + || put_eol(fd) == FAIL)) + return FAIL; + + /* + * Restore window sizes again after jumping around in windows, because + * the current window has a minimum size while others may not. + */ + if (nr > 1 && ses_winsizes(fd, restore_size, tab_firstwin) == FAIL) + return FAIL; + + /* Don't continue in another tab page when doing only the current one + * or when at the last tab page. */ + if (!(ssop_flags & SSOP_TABPAGES)) + break; + } + + if (ssop_flags & SSOP_TABPAGES) { + if (fprintf(fd, "tabnext %d", tabpage_index(curtab)) < 0 + || put_eol(fd) == FAIL) + return FAIL; + } + + /* + * Wipe out an empty unnamed buffer we started in. + */ + if (put_line(fd, "if exists('s:wipebuf')") == FAIL) + return FAIL; + if (put_line(fd, " silent exe 'bwipe ' . s:wipebuf") == FAIL) + return FAIL; + if (put_line(fd, "endif") == FAIL) + return FAIL; + if (put_line(fd, "unlet! s:wipebuf") == FAIL) + return FAIL; + + /* Re-apply 'winheight', 'winwidth' and 'shortmess'. */ + if (fprintf(fd, "set winheight=%" PRId64 " winwidth=%" PRId64 " shortmess=%s", + (int64_t)p_wh, (int64_t)p_wiw, p_shm) < 0 + || put_eol(fd) == FAIL) + return FAIL; + + /* + * Lastly, execute the x.vim file if it exists. + */ + if (put_line(fd, "let s:sx = expand(\"<sfile>:p:r\").\"x.vim\"") == FAIL + || put_line(fd, "if file_readable(s:sx)") == FAIL + || put_line(fd, " exe \"source \" . fnameescape(s:sx)") == FAIL + || put_line(fd, "endif") == FAIL) + return FAIL; + + return OK; +} + +static int ses_winsizes(FILE *fd, int restore_size, win_T *tab_firstwin) +{ + int n = 0; + win_T *wp; + + if (restore_size && (ssop_flags & SSOP_WINSIZE)) { + for (wp = tab_firstwin; wp != NULL; wp = wp->w_next) { + if (!ses_do_win(wp)) + continue; + ++n; + + /* restore height when not full height */ + if (wp->w_height + wp->w_status_height < topframe->fr_height + && (fprintf(fd, + "exe '%dresize ' . ((&lines * %" PRId64 + " + %" PRId64 ") / %" PRId64 ")", + n, (int64_t)wp->w_height, + (int64_t)(Rows / 2), (int64_t)Rows) < 0 + || put_eol(fd) == FAIL)) + return FAIL; + + /* restore width when not full width */ + if (wp->w_width < Columns + && (fprintf(fd, "exe 'vert %dresize ' . ((&columns * %" PRId64 + " + %" PRId64 ") / %" PRId64 ")", + n, (int64_t)wp->w_width, (int64_t)(Columns / 2), + (int64_t)Columns) < 0 + || put_eol(fd) == FAIL)) + return FAIL; + } + } else { + /* Just equalise window sizes */ + if (put_line(fd, "wincmd =") == FAIL) + return FAIL; + } + return OK; +} + +/* + * Write commands to "fd" to recursively create windows for frame "fr", + * horizontally and vertically split. + * After the commands the last window in the frame is the current window. + * Returns FAIL when writing the commands to "fd" fails. + */ +static int ses_win_rec(FILE *fd, frame_T *fr) +{ + frame_T *frc; + int count = 0; + + if (fr->fr_layout != FR_LEAF) { + /* Find first frame that's not skipped and then create a window for + * each following one (first frame is already there). */ + frc = ses_skipframe(fr->fr_child); + if (frc != NULL) + while ((frc = ses_skipframe(frc->fr_next)) != NULL) { + /* Make window as big as possible so that we have lots of room + * to split. */ + if (put_line(fd, "wincmd _ | wincmd |") == FAIL + || put_line(fd, fr->fr_layout == FR_COL + ? "split" : "vsplit") == FAIL) + return FAIL; + ++count; + } + + /* Go back to the first window. */ + if (count > 0 && (fprintf(fd, fr->fr_layout == FR_COL + ? "%dwincmd k" : "%dwincmd h", count) < 0 + || put_eol(fd) == FAIL)) + return FAIL; + + /* Recursively create frames/windows in each window of this column or + * row. */ + frc = ses_skipframe(fr->fr_child); + while (frc != NULL) { + ses_win_rec(fd, frc); + frc = ses_skipframe(frc->fr_next); + /* Go to next window. */ + if (frc != NULL && put_line(fd, "wincmd w") == FAIL) + return FAIL; + } + } + return OK; +} + +/* + * Skip frames that don't contain windows we want to save in the Session. + * Returns NULL when there none. + */ +static frame_T *ses_skipframe(frame_T *fr) +{ + frame_T *frc; + + for (frc = fr; frc != NULL; frc = frc->fr_next) + if (ses_do_frame(frc)) + break; + return frc; +} + +/* + * Return TRUE if frame "fr" has a window somewhere that we want to save in + * the Session. + */ +static int ses_do_frame(frame_T *fr) +{ + frame_T *frc; + + if (fr->fr_layout == FR_LEAF) + return ses_do_win(fr->fr_win); + for (frc = fr->fr_child; frc != NULL; frc = frc->fr_next) + if (ses_do_frame(frc)) + return TRUE; + return FALSE; +} + +/* + * Return non-zero if window "wp" is to be stored in the Session. + */ +static int ses_do_win(win_T *wp) +{ + if (wp->w_buffer->b_fname == NULL + /* When 'buftype' is "nofile" can't restore the window contents. */ + || bt_nofile(wp->w_buffer) + ) + return ssop_flags & SSOP_BLANK; + if (wp->w_buffer->b_help) + return ssop_flags & SSOP_HELP; + return TRUE; +} + +/* + * Write commands to "fd" to restore the view of a window. + * Caller must make sure 'scrolloff' is zero. + */ +static int +put_view ( + FILE *fd, + win_T *wp, + int add_edit, /* add ":edit" command to view */ + unsigned *flagp, /* vop_flags or ssop_flags */ + int current_arg_idx /* current argument index of the window, use + * -1 if unknown */ +) +{ + win_T *save_curwin; + int f; + int do_cursor; + int did_next = FALSE; + + /* Always restore cursor position for ":mksession". For ":mkview" only + * when 'viewoptions' contains "cursor". */ + do_cursor = (flagp == &ssop_flags || *flagp & SSOP_CURSOR); + + /* + * Local argument list. + */ + if (wp->w_alist == &global_alist) { + if (put_line(fd, "argglobal") == FAIL) + return FAIL; + } else { + if (ses_arglist(fd, "arglocal", &wp->w_alist->al_ga, + flagp == &vop_flags + || !(*flagp & SSOP_CURDIR) + || wp->w_localdir != NULL, flagp) == FAIL) + return FAIL; + } + + /* Only when part of a session: restore the argument index. Some + * arguments may have been deleted, check if the index is valid. */ + if (wp->w_arg_idx != current_arg_idx && wp->w_arg_idx < WARGCOUNT(wp) + && flagp == &ssop_flags) { + if (fprintf(fd, "%" PRId64 "argu", (int64_t)(wp->w_arg_idx + 1)) < 0 + || put_eol(fd) == FAIL) + return FAIL; + did_next = TRUE; + } + + /* Edit the file. Skip this when ":next" already did it. */ + if (add_edit && (!did_next || wp->w_arg_idx_invalid)) { + /* + * Load the file. + */ + if (wp->w_buffer->b_ffname != NULL + && !bt_nofile(wp->w_buffer) + ) { + /* + * Editing a file in this buffer: use ":edit file". + * This may have side effects! (e.g., compressed or network file). + */ + if (fputs("edit ", fd) < 0 + || ses_fname(fd, wp->w_buffer, flagp) == FAIL) + return FAIL; + } else { + /* No file in this buffer, just make it empty. */ + if (put_line(fd, "enew") == FAIL) + return FAIL; + if (wp->w_buffer->b_ffname != NULL) { + /* The buffer does have a name, but it's not a file name. */ + if (fputs("file ", fd) < 0 + || ses_fname(fd, wp->w_buffer, flagp) == FAIL) + return FAIL; + } + do_cursor = FALSE; + } + } + + /* + * Local mappings and abbreviations. + */ + if ((*flagp & (SSOP_OPTIONS | SSOP_LOCALOPTIONS)) + && makemap(fd, wp->w_buffer) == FAIL) + return FAIL; + + /* + * Local options. Need to go to the window temporarily. + * Store only local values when using ":mkview" and when ":mksession" is + * used and 'sessionoptions' doesn't include "options". + * Some folding options are always stored when "folds" is included, + * otherwise the folds would not be restored correctly. + */ + save_curwin = curwin; + curwin = wp; + curbuf = curwin->w_buffer; + if (*flagp & (SSOP_OPTIONS | SSOP_LOCALOPTIONS)) + f = makeset(fd, OPT_LOCAL, + flagp == &vop_flags || !(*flagp & SSOP_OPTIONS)); + else if (*flagp & SSOP_FOLDS) + f = makefoldset(fd); + else + f = OK; + curwin = save_curwin; + curbuf = curwin->w_buffer; + if (f == FAIL) + return FAIL; + + /* + * Save Folds when 'buftype' is empty and for help files. + */ + if ((*flagp & SSOP_FOLDS) + && wp->w_buffer->b_ffname != NULL + && (*wp->w_buffer->b_p_bt == NUL || wp->w_buffer->b_help) + ) { + if (put_folds(fd, wp) == FAIL) + return FAIL; + } + + /* + * Set the cursor after creating folds, since that moves the cursor. + */ + if (do_cursor) { + + /* Restore the cursor line in the file and relatively in the + * window. Don't use "G", it changes the jumplist. */ + if (fprintf(fd, + "let s:l = %" PRId64 " - ((%" PRId64 + " * winheight(0) + %" PRId64 ") / %" PRId64 ")", + (int64_t)wp->w_cursor.lnum, + (int64_t)(wp->w_cursor.lnum - wp->w_topline), + (int64_t)(wp->w_height / 2), + (int64_t)wp->w_height) < 0 + || put_eol(fd) == FAIL + || put_line(fd, "if s:l < 1 | let s:l = 1 | endif") == FAIL + || put_line(fd, "exe s:l") == FAIL + || put_line(fd, "normal! zt") == FAIL + || fprintf(fd, "%" PRId64, (int64_t)wp->w_cursor.lnum) < 0 + || put_eol(fd) == FAIL) + return FAIL; + /* Restore the cursor column and left offset when not wrapping. */ + if (wp->w_cursor.col == 0) { + if (put_line(fd, "normal! 0") == FAIL) + return FAIL; + } else { + if (!wp->w_p_wrap && wp->w_leftcol > 0 && wp->w_width > 0) { + if (fprintf(fd, "let s:c = %" PRId64 " - ((%" PRId64 + " * winwidth(0) + %" PRId64 ") / %" PRId64 ")", + (int64_t)(wp->w_virtcol + 1), + (int64_t)(wp->w_virtcol - wp->w_leftcol), + (int64_t)(wp->w_width / 2), + (int64_t)wp->w_width) < 0 + || put_eol(fd) == FAIL + || put_line(fd, "if s:c > 0") == FAIL + || fprintf(fd, " exe 'normal! ' . s:c . '|zs' . %" PRId64 " . '|'", + (int64_t)(wp->w_virtcol + 1)) < 0 + || put_eol(fd) == FAIL + || put_line(fd, "else") == FAIL + || fprintf(fd, " normal! 0%d|", wp->w_virtcol + 1) < 0 + || put_eol(fd) == FAIL + || put_line(fd, "endif") == FAIL) + return FAIL; + } else { + if (fprintf(fd, "normal! 0%d|", wp->w_virtcol + 1) < 0 + || put_eol(fd) == FAIL) + return FAIL; + } + } + } + + /* + * Local directory. + */ + if (wp->w_localdir != NULL) { + if (fputs("lcd ", fd) < 0 + || ses_put_fname(fd, wp->w_localdir, flagp) == FAIL + || put_eol(fd) == FAIL) + return FAIL; + did_lcd = TRUE; + } + + return OK; +} + +/* + * Write an argument list to the session file. + * Returns FAIL if writing fails. + */ +static int +ses_arglist ( + FILE *fd, + char *cmd, + garray_T *gap, + int fullname, /* TRUE: use full path name */ + unsigned *flagp +) +{ + int i; + char_u *buf = NULL; + char_u *s; + + if (fputs(cmd, fd) < 0 || put_eol(fd) == FAIL) { + return FAIL; + } + if (put_line(fd, "silent! argdel *") == FAIL) { + return FAIL; + } + for (i = 0; i < gap->ga_len; ++i) { + /* NULL file names are skipped (only happens when out of memory). */ + s = alist_name(&((aentry_T *)gap->ga_data)[i]); + if (s != NULL) { + if (fullname) { + buf = xmalloc(MAXPATHL); + (void)vim_FullName(s, buf, MAXPATHL, FALSE); + s = buf; + } + if (fputs("argadd ", fd) < 0 || ses_put_fname(fd, s, flagp) == FAIL + || put_eol(fd) == FAIL) { + free(buf); + return FAIL; + } + free(buf); + } + } + return OK; +} + +/* + * Write a buffer name to the session file. + * Also ends the line. + * Returns FAIL if writing fails. + */ +static int ses_fname(FILE *fd, buf_T *buf, unsigned *flagp) +{ + char_u *name; + + /* Use the short file name if the current directory is known at the time + * the session file will be sourced. + * Don't do this for ":mkview", we don't know the current directory. + * Don't do this after ":lcd", we don't keep track of what the current + * directory is. */ + if (buf->b_sfname != NULL + && flagp == &ssop_flags + && (ssop_flags & (SSOP_CURDIR | SSOP_SESDIR)) + && !p_acd + && !did_lcd) + name = buf->b_sfname; + else + name = buf->b_ffname; + if (ses_put_fname(fd, name, flagp) == FAIL || put_eol(fd) == FAIL) + return FAIL; + return OK; +} + +/* + * Write a file name to the session file. + * Takes care of the "slash" option in 'sessionoptions' and escapes special + * characters. + * Returns FAIL if writing fails or out of memory. + */ +static int ses_put_fname(FILE *fd, char_u *name, unsigned *flagp) +{ + char_u *sname; + char_u *p; + int retval = OK; + + sname = home_replace_save(NULL, name); + if (sname == NULL) + return FAIL; + + if (*flagp & SSOP_SLASH) { + /* change all backslashes to forward slashes */ + for (p = sname; *p != NUL; mb_ptr_adv(p)) + if (*p == '\\') + *p = '/'; + } + + /* escape special characters */ + p = vim_strsave_fnameescape(sname, FALSE); + free(sname); + if (p == NULL) + return FAIL; + + /* write the result */ + if (fputs((char *)p, fd) < 0) + retval = FAIL; + + free(p); + return retval; +} + +/* + * ":loadview [nr]" + */ +static void ex_loadview(exarg_T *eap) +{ + char_u *fname; + + fname = get_view_file(*eap->arg); + if (fname != NULL) { + do_source(fname, FALSE, DOSO_NONE); + free(fname); + } +} + +/* + * Get the name of the view file for the current buffer. + */ +static char_u *get_view_file(int c) +{ + int len = 0; + char_u *p, *s; + char_u *retval; + char_u *sname; + + if (curbuf->b_ffname == NULL) { + EMSG(_(e_noname)); + return NULL; + } + sname = home_replace_save(NULL, curbuf->b_ffname); + if (sname == NULL) + return NULL; + + /* + * We want a file name without separators, because we're not going to make + * a directory. + * "normal" path separator -> "=+" + * "=" -> "==" + * ":" path separator -> "=-" + */ + for (p = sname; *p; ++p) + if (*p == '=' || vim_ispathsep(*p)) + ++len; + retval = xmalloc(STRLEN(sname) + len + STRLEN(p_vdir) + 9); + STRCPY(retval, p_vdir); + add_pathsep(retval); + s = retval + STRLEN(retval); + for (p = sname; *p; ++p) { + if (*p == '=') { + *s++ = '='; + *s++ = '='; + } else if (vim_ispathsep(*p)) { + *s++ = '='; +#if defined(BACKSLASH_IN_FILENAME) + if (*p == ':') + *s++ = '-'; + else +#endif + *s++ = '+'; + } else + *s++ = *p; + } + *s++ = '='; + *s++ = c; + STRCPY(s, ".vim"); + + free(sname); + return retval; +} + + +/* + * Write end-of-line character(s) for ":mkexrc", ":mkvimrc" and ":mksession". + * Return FAIL for a write error. + */ +int put_eol(FILE *fd) +{ + if ( +#ifdef USE_CRNL + ( +# ifdef MKSESSION_NL + !mksession_nl && +# endif + (putc('\r', fd) < 0)) || +#endif + (putc('\n', fd) < 0)) + return FAIL; + return OK; +} + +/* + * Write a line to "fd". + * Return FAIL for a write error. + */ +int put_line(FILE *fd, char *s) +{ + if (fputs(s, fd) < 0 || put_eol(fd) == FAIL) + return FAIL; + return OK; +} + +/* + * ":rviminfo" and ":wviminfo". + */ +static void ex_viminfo(exarg_T *eap) +{ + char_u *save_viminfo; + + save_viminfo = p_viminfo; + if (*p_viminfo == NUL) + p_viminfo = (char_u *)"'100"; + if (eap->cmdidx == CMD_rviminfo) { + if (read_viminfo(eap->arg, VIF_WANT_INFO | VIF_WANT_MARKS + | (eap->forceit ? VIF_FORCEIT : 0)) == FAIL) + EMSG(_("E195: Cannot open viminfo file for reading")); + } else + write_viminfo(eap->arg, eap->forceit); + p_viminfo = save_viminfo; +} + +/* + * Make a dialog message in "buff[DIALOG_MSG_SIZE]". + * "format" must contain "%s". + */ +void dialog_msg(char_u *buff, char *format, char_u *fname) +{ + if (fname == NULL) + fname = (char_u *)_("Untitled"); + vim_snprintf((char *)buff, DIALOG_MSG_SIZE, format, fname); +} + +/* + * ":behave {mswin,xterm}" + */ +static void ex_behave(exarg_T *eap) +{ + if (STRCMP(eap->arg, "mswin") == 0) { + set_option_value((char_u *)"selection", 0L, (char_u *)"exclusive", 0); + set_option_value((char_u *)"selectmode", 0L, (char_u *)"mouse,key", 0); + set_option_value((char_u *)"mousemodel", 0L, (char_u *)"popup", 0); + set_option_value((char_u *)"keymodel", 0L, + (char_u *)"startsel,stopsel", 0); + } else if (STRCMP(eap->arg, "xterm") == 0) { + set_option_value((char_u *)"selection", 0L, (char_u *)"inclusive", 0); + set_option_value((char_u *)"selectmode", 0L, (char_u *)"", 0); + set_option_value((char_u *)"mousemodel", 0L, (char_u *)"extend", 0); + set_option_value((char_u *)"keymodel", 0L, (char_u *)"", 0); + } else + EMSG2(_(e_invarg2), eap->arg); +} + +/* + * Function given to ExpandGeneric() to obtain the possible arguments of the + * ":behave {mswin,xterm}" command. + */ +char_u *get_behave_arg(expand_T *xp, int idx) +{ + if (idx == 0) + return (char_u *)"mswin"; + if (idx == 1) + return (char_u *)"xterm"; + return NULL; +} + +static int filetype_detect = FALSE; +static int filetype_plugin = FALSE; +static int filetype_indent = FALSE; + +/* + * ":filetype [plugin] [indent] {on,off,detect}" + * on: Load the filetype.vim file to install autocommands for file types. + * off: Load the ftoff.vim file to remove all autocommands for file types. + * plugin on: load filetype.vim and ftplugin.vim + * plugin off: load ftplugof.vim + * indent on: load filetype.vim and indent.vim + * indent off: load indoff.vim + */ +static void ex_filetype(exarg_T *eap) +{ + char_u *arg = eap->arg; + int plugin = FALSE; + int indent = FALSE; + + if (*eap->arg == NUL) { + /* Print current status. */ + smsg((char_u *)"filetype detection:%s plugin:%s indent:%s", + filetype_detect ? "ON" : "OFF", + filetype_plugin ? (filetype_detect ? "ON" : "(on)") : "OFF", + filetype_indent ? (filetype_detect ? "ON" : "(on)") : "OFF"); + return; + } + + /* Accept "plugin" and "indent" in any order. */ + for (;; ) { + if (STRNCMP(arg, "plugin", 6) == 0) { + plugin = TRUE; + arg = skipwhite(arg + 6); + continue; + } + if (STRNCMP(arg, "indent", 6) == 0) { + indent = TRUE; + arg = skipwhite(arg + 6); + continue; + } + break; + } + if (STRCMP(arg, "on") == 0 || STRCMP(arg, "detect") == 0) { + if (*arg == 'o' || !filetype_detect) { + source_runtime((char_u *)FILETYPE_FILE, TRUE); + filetype_detect = TRUE; + if (plugin) { + source_runtime((char_u *)FTPLUGIN_FILE, TRUE); + filetype_plugin = TRUE; + } + if (indent) { + source_runtime((char_u *)INDENT_FILE, TRUE); + filetype_indent = TRUE; + } + } + if (*arg == 'd') { + (void)do_doautocmd((char_u *)"filetypedetect BufRead", TRUE); + do_modelines(0); + } + } else if (STRCMP(arg, "off") == 0) { + if (plugin || indent) { + if (plugin) { + source_runtime((char_u *)FTPLUGOF_FILE, TRUE); + filetype_plugin = FALSE; + } + if (indent) { + source_runtime((char_u *)INDOFF_FILE, TRUE); + filetype_indent = FALSE; + } + } else { + source_runtime((char_u *)FTOFF_FILE, TRUE); + filetype_detect = FALSE; + } + } else + EMSG2(_(e_invarg2), arg); +} + +/* + * ":setfiletype {name}" + */ +static void ex_setfiletype(exarg_T *eap) +{ + if (!did_filetype) + set_option_value((char_u *)"filetype", 0L, eap->arg, OPT_LOCAL); +} + +static void ex_digraphs(exarg_T *eap) +{ + if (*eap->arg != NUL) + putdigraph(eap->arg); + else + listdigraphs(); +} + +static void ex_set(exarg_T *eap) +{ + int flags = 0; + + if (eap->cmdidx == CMD_setlocal) + flags = OPT_LOCAL; + else if (eap->cmdidx == CMD_setglobal) + flags = OPT_GLOBAL; + (void)do_set(eap->arg, flags); +} + +/* + * ":nohlsearch" + */ +static void ex_nohlsearch(exarg_T *eap) +{ + SET_NO_HLSEARCH(TRUE); + redraw_all_later(SOME_VALID); +} + +/* + * ":[N]match {group} {pattern}" + * Sets nextcmd to the start of the next command, if any. Also called when + * skipping commands to find the next command. + */ +static void ex_match(exarg_T *eap) +{ + char_u *p; + char_u *g = NULL; + char_u *end; + int c; + int id; + + if (eap->line2 <= 3) + id = eap->line2; + else { + EMSG(e_invcmd); + return; + } + + /* First clear any old pattern. */ + if (!eap->skip) + match_delete(curwin, id, FALSE); + + if (ends_excmd(*eap->arg)) + end = eap->arg; + else if ((STRNICMP(eap->arg, "none", 4) == 0 + && (vim_iswhite(eap->arg[4]) || ends_excmd(eap->arg[4])))) + end = eap->arg + 4; + else { + p = skiptowhite(eap->arg); + if (!eap->skip) + g = vim_strnsave(eap->arg, (int)(p - eap->arg)); + p = skipwhite(p); + if (*p == NUL) { + /* There must be two arguments. */ + EMSG2(_(e_invarg2), eap->arg); + return; + } + end = skip_regexp(p + 1, *p, TRUE, NULL); + if (!eap->skip) { + if (*end != NUL && !ends_excmd(*skipwhite(end + 1))) { + eap->errmsg = e_trailing; + return; + } + if (*end != *p) { + EMSG2(_(e_invarg2), p); + return; + } + + c = *end; + *end = NUL; + match_add(curwin, g, p + 1, 10, id); + free(g); + *end = c; + } + } + eap->nextcmd = find_nextcmd(end); +} + +/* + * ":X": Get crypt key + */ +static void ex_X(exarg_T *eap) +{ + if (get_crypt_method(curbuf) == 0 || blowfish_self_test() == OK) + (void)get_crypt_key(TRUE, TRUE); +} + +static void ex_fold(exarg_T *eap) +{ + if (foldManualAllowed(TRUE)) + foldCreate(eap->line1, eap->line2); +} + +static void ex_foldopen(exarg_T *eap) +{ + opFoldRange(eap->line1, eap->line2, eap->cmdidx == CMD_foldopen, + eap->forceit, FALSE); +} + +static void ex_folddo(exarg_T *eap) +{ + linenr_T lnum; + + /* First set the marks for all lines closed/open. */ + for (lnum = eap->line1; lnum <= eap->line2; ++lnum) + if (hasFolding(lnum, NULL, NULL) == (eap->cmdidx == CMD_folddoclosed)) + ml_setmarked(lnum); + + /* Execute the command on the marked lines. */ + global_exe(eap->arg); + ml_clearmarked(); /* clear rest of the marks */ +} |