Introduce nvim namespace: Move files.

Move files from src/ to src/nvim/.
- src/nvim/ becomes the new root dir for nvim executable sources.
- src/libnvim/ is planned to become root dir of the neovim library.

1 files changed, 1391 insertions, 0 deletions

diff --git a/src/nvim/vim.h b/src/nvim/vim.h
new file mode 100644
index 0000000000..0032032fcf
--- /dev/null
+++ b/src/nvim/vim.h
@@ -0,0 +1,1391 @@
+/*
+ * 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.
+ */
+
+#ifndef NEOVIM_VIM_H
+# define NEOVIM_VIM_H
+
+#include "types.h"
+
+/* Included when ported to cmake */
+/* This is needed to replace TRUE/FALSE macros by true/false from c99 */
+#include <stdbool.h>
+/* Some defines from the old feature.h */
+#define SESSION_FILE "Session.vim"
+#define MAX_MSG_HIST_LEN 200
+#define SYS_OPTWIN_FILE "$VIMRUNTIME/optwin.vim"
+#define RUNTIME_DIRNAME "runtime"
+/* end */
+
+/* ============ the header file puzzle (ca. 50-100 pieces) ========= */
+
+#ifdef HAVE_CONFIG_H    /* GNU autoconf (or something else) was here */
+# include "auto/config.h"
+# define HAVE_PATHDEF
+
+/*
+ * Check if configure correctly managed to find sizeof(int).  If this failed,
+ * it becomes zero.  This is likely a problem of not being able to run the
+ * test program.  Other items from configure may also be wrong then!
+ */
+# if (SIZEOF_INT == 0)
+Error: configure did not run properly.Check auto/config.log.
+# endif
+#endif
+
+/* user ID of root is usually zero, but not for everybody */
+# define ROOT_UID 0
+
+
+/* Can't use "PACKAGE" here, conflicts with a Perl include file. */
+#ifndef VIMPACKAGE
+# define VIMPACKAGE     "vim"
+#endif
+
+#include "os_unix_defs.h"       /* bring lots of system header files */
+
+# ifdef HAVE_LOCALE_H
+#  include <locale.h>
+# endif
+
+/*
+ * Maximum length of a path (for non-unix systems) Make it a bit long, to stay
+ * on the safe side.  But not too long to put on the stack.
+ */
+#ifndef MAXPATHL
+# ifdef MAXPATHLEN
+#  define MAXPATHL  MAXPATHLEN
+# else
+#  define MAXPATHL  256
+# endif
+#endif
+#ifdef BACKSLASH_IN_FILENAME
+# define PATH_ESC_CHARS ((char_u *)" \t\n*?[{`%#'\"|!<")
+#else
+#  define PATH_ESC_CHARS ((char_u *)" \t\n*?[{`$\\%#'\"|!<")
+#  define SHELL_ESC_CHARS ((char_u *)" \t\n*?[{`$\\%#'\"|!<>();&")
+#endif
+
+#define NUMBUFLEN 30        /* length of a buffer to store a number in ASCII */
+
+// Make sure long_u is big enough to hold a pointer.
+// On Win64, longs are 32 bits and pointers are 64 bits.
+// For printf() and scanf(), we need to take care of long_u specifically.
+typedef unsigned long long_u;
+
+/*
+ * The characters and attributes cached for the screen.
+ */
+typedef char_u schar_T;
+typedef unsigned short sattr_T;
+# define MAX_TYPENR 65535
+
+/*
+ * The u8char_T can hold one decoded UTF-8 character.
+ * We normally use 32 bits now, since some Asian characters don't fit in 16
+ * bits.  u8char_T is only used for displaying, it could be 16 bits to save
+ * memory.
+ */
+# ifdef UNICODE16
+typedef uint16_t u8char_T;
+# else
+typedef uint32_t u8char_T;
+# endif
+
+#include "ascii.h"
+#include "keymap.h"
+#include "term_defs.h"
+#include "macros.h"
+
+#include <errno.h>
+
+#include <assert.h>
+
+#include <inttypes.h>
+#include <wctype.h>
+#include <stdarg.h>
+
+#if defined(HAVE_SYS_SELECT_H) && \
+  (!defined(HAVE_SYS_TIME_H) || defined(SYS_SELECT_WITH_SYS_TIME))
+# include <sys/select.h>
+#endif
+
+/* ================ end of the header file puzzle =============== */
+
+#ifdef HAVE_WORKING_LIBINTL
+#  include <libintl.h>
+#  define _(x) gettext((char *)(x))
+// XXX do we actually need this?
+#  ifdef gettext_noop
+#    define N_(x) gettext_noop(x)
+#  else
+#    define N_(x) x
+#  endif
+#else
+#  define _(x) ((char *)(x))
+#  define N_(x) x
+#  define bindtextdomain(x, y) /* empty */
+#  define bind_textdomain_codeset(x, y) /* empty */
+#  define textdomain(x) /* empty */
+#endif
+
+/*
+ * flags for update_screen()
+ * The higher the value, the higher the priority
+ */
+#define VALID                   10  /* buffer not changed, or changes marked
+                                       with b_mod_* */
+#define INVERTED                20  /* redisplay inverted part that changed */
+#define INVERTED_ALL            25  /* redisplay whole inverted part */
+#define REDRAW_TOP              30  /* display first w_upd_rows screen lines */
+#define SOME_VALID              35  /* like NOT_VALID but may scroll */
+#define NOT_VALID               40  /* buffer needs complete redraw */
+#define CLEAR                   50  /* screen messed up, clear it */
+
+/*
+ * Flags for w_valid.
+ * These are set when something in a window structure becomes invalid, except
+ * when the cursor is moved.  Call check_cursor_moved() before testing one of
+ * the flags.
+ * These are reset when that thing has been updated and is valid again.
+ *
+ * Every function that invalidates one of these must call one of the
+ * invalidate_* functions.
+ *
+ * w_valid is supposed to be used only in screen.c.  From other files, use the
+ * functions that set or reset the flags.
+ *
+ * VALID_BOTLINE    VALID_BOTLINE_AP
+ *     on		on		w_botline valid
+ *     off		on		w_botline approximated
+ *     off		off		w_botline not valid
+ *     on		off		not possible
+ */
+#define VALID_WROW      0x01    /* w_wrow (window row) is valid */
+#define VALID_WCOL      0x02    /* w_wcol (window col) is valid */
+#define VALID_VIRTCOL   0x04    /* w_virtcol (file col) is valid */
+#define VALID_CHEIGHT   0x08    /* w_cline_height and w_cline_folded valid */
+#define VALID_CROW      0x10    /* w_cline_row is valid */
+#define VALID_BOTLINE   0x20    /* w_botine and w_empty_rows are valid */
+#define VALID_BOTLINE_AP 0x40   /* w_botine is approximated */
+#define VALID_TOPLINE   0x80    /* w_topline is valid (for cursor position) */
+
+/*
+ * Terminal highlighting attribute bits.
+ * Attributes above HL_ALL are used for syntax highlighting.
+ */
+#define HL_NORMAL               0x00
+#define HL_INVERSE              0x01
+#define HL_BOLD                 0x02
+#define HL_ITALIC               0x04
+#define HL_UNDERLINE            0x08
+#define HL_UNDERCURL            0x10
+#define HL_STANDOUT             0x20
+#define HL_ALL                  0x3f
+
+/* special attribute addition: Put message in history */
+#define MSG_HIST                0x1000
+
+/*
+ * values for State
+ *
+ * The lower bits up to 0x20 are used to distinguish normal/visual/op_pending
+ * and cmdline/insert+replace mode.  This is used for mapping.  If none of
+ * these bits are set, no mapping is done.
+ * The upper bits are used to distinguish between other states.
+ */
+#define NORMAL          0x01    /* Normal mode, command expected */
+#define VISUAL          0x02    /* Visual mode - use get_real_state() */
+#define OP_PENDING      0x04    /* Normal mode, operator is pending - use
+                                   get_real_state() */
+#define CMDLINE         0x08    /* Editing command line */
+#define INSERT          0x10    /* Insert mode */
+#define LANGMAP         0x20    /* Language mapping, can be combined with
+                                   INSERT and CMDLINE */
+
+#define REPLACE_FLAG    0x40    /* Replace mode flag */
+#define REPLACE         (REPLACE_FLAG + INSERT)
+# define VREPLACE_FLAG  0x80    /* Virtual-replace mode flag */
+# define VREPLACE       (REPLACE_FLAG + VREPLACE_FLAG + INSERT)
+#define LREPLACE        (REPLACE_FLAG + LANGMAP)
+
+#define NORMAL_BUSY     (0x100 + NORMAL) /* Normal mode, busy with a command */
+#define HITRETURN       (0x200 + NORMAL) /* waiting for return or command */
+#define ASKMORE         0x300   /* Asking if you want --more-- */
+#define SETWSIZE        0x400   /* window size has changed */
+#define ABBREV          0x500   /* abbreviation instead of mapping */
+#define EXTERNCMD       0x600   /* executing an external command */
+#define SHOWMATCH       (0x700 + INSERT) /* show matching paren */
+#define CONFIRM         0x800   /* ":confirm" prompt */
+#define SELECTMODE      0x1000  /* Select mode, only for mappings */
+
+#define MAP_ALL_MODES   (0x3f | SELECTMODE)     /* all mode bits used for
+                                                 * mapping */
+
+/* directions */
+#define FORWARD                 1
+#define BACKWARD                (-1)
+#define FORWARD_FILE            3
+#define BACKWARD_FILE           (-3)
+
+/* return values for functions */
+#if !(defined(OK) && (OK == 1))
+/* OK already defined to 1 in MacOS X curses, skip this */
+# define OK                     1
+#endif
+#define FAIL                    0
+#define NOTDONE                 2   /* not OK or FAIL but skipped */
+
+/* flags for b_flags */
+#define BF_RECOVERED    0x01    /* buffer has been recovered */
+#define BF_CHECK_RO     0x02    /* need to check readonly when loading file
+                                   into buffer (set by ":e", may be reset by
+                                   ":buf" */
+#define BF_NEVERLOADED  0x04    /* file has never been loaded into buffer,
+                                   many variables still need to be set */
+#define BF_NOTEDITED    0x08    /* Set when file name is changed after
+                                   starting to edit, reset when file is
+                                   written out. */
+#define BF_NEW          0x10    /* file didn't exist when editing started */
+#define BF_NEW_W        0x20    /* Warned for BF_NEW and file created */
+#define BF_READERR      0x40    /* got errors while reading the file */
+#define BF_DUMMY        0x80    /* dummy buffer, only used internally */
+#define BF_PRESERVED    0x100   /* ":preserve" was used */
+
+/* Mask to check for flags that prevent normal writing */
+#define BF_WRITE_MASK   (BF_NOTEDITED + BF_NEW + BF_READERR)
+
+/*
+ * values for xp_context when doing command line completion
+ */
+enum {
+  EXPAND_UNSUCCESSFUL = -2,
+  EXPAND_OK = -1,
+  EXPAND_NOTHING = 0,
+  EXPAND_COMMANDS,
+  EXPAND_FILES,
+  EXPAND_DIRECTORIES,
+  EXPAND_SETTINGS,
+  EXPAND_BOOL_SETTINGS,
+  EXPAND_TAGS,
+  EXPAND_OLD_SETTING,
+  EXPAND_HELP,
+  EXPAND_BUFFERS,
+  EXPAND_EVENTS,
+  EXPAND_MENUS,
+  EXPAND_SYNTAX,
+  EXPAND_HIGHLIGHT,
+  EXPAND_AUGROUP,
+  EXPAND_USER_VARS,
+  EXPAND_MAPPINGS,
+  EXPAND_TAGS_LISTFILES,
+  EXPAND_FUNCTIONS,
+  EXPAND_USER_FUNC,
+  EXPAND_EXPRESSION,
+  EXPAND_MENUNAMES,
+  EXPAND_USER_COMMANDS,
+  EXPAND_USER_CMD_FLAGS,
+  EXPAND_USER_NARGS,
+  EXPAND_USER_COMPLETE,
+  EXPAND_ENV_VARS,
+  EXPAND_LANGUAGE,
+  EXPAND_COLORS,
+  EXPAND_COMPILER,
+  EXPAND_USER_DEFINED,
+  EXPAND_USER_LIST,
+  EXPAND_SHELLCMD,
+  EXPAND_CSCOPE,
+  EXPAND_SIGN,
+  EXPAND_PROFILE,
+  EXPAND_BEHAVE,
+  EXPAND_FILETYPE,
+  EXPAND_FILES_IN_PATH,
+  EXPAND_OWNSYNTAX,
+  EXPAND_LOCALES,
+  EXPAND_HISTORY,
+  EXPAND_USER,
+  EXPAND_SYNTIME,
+};
+
+/* Values for exmode_active (0 is no exmode) */
+#define EXMODE_NORMAL           1
+#define EXMODE_VIM              2
+
+/* Values for nextwild() and ExpandOne().  See ExpandOne() for meaning. */
+#define WILD_FREE               1
+#define WILD_EXPAND_FREE        2
+#define WILD_EXPAND_KEEP        3
+#define WILD_NEXT               4
+#define WILD_PREV               5
+#define WILD_ALL                6
+#define WILD_LONGEST            7
+#define WILD_ALL_KEEP           8
+
+#define WILD_LIST_NOTFOUND      1
+#define WILD_HOME_REPLACE       2
+#define WILD_USE_NL             4
+#define WILD_NO_BEEP            8
+#define WILD_ADD_SLASH          16
+#define WILD_KEEP_ALL           32
+#define WILD_SILENT             64
+#define WILD_ESCAPE             128
+#define WILD_ICASE              256
+
+/* Flags for expand_wildcards() */
+#define EW_DIR          0x01    /* include directory names */
+#define EW_FILE         0x02    /* include file names */
+#define EW_NOTFOUND     0x04    /* include not found names */
+#define EW_ADDSLASH     0x08    /* append slash to directory name */
+#define EW_KEEPALL      0x10    /* keep all matches */
+#define EW_SILENT       0x20    /* don't print "1 returned" from shell */
+#define EW_EXEC         0x40    /* executable files */
+#define EW_PATH         0x80    /* search in 'path' too */
+#define EW_ICASE        0x100   /* ignore case */
+#define EW_NOERROR      0x200   /* no error for bad regexp */
+#define EW_NOTWILD      0x400   /* add match with literal name if exists */
+/* Note: mostly EW_NOTFOUND and EW_SILENT are mutually exclusive: EW_NOTFOUND
+* is used when executing commands and EW_SILENT for interactive expanding. */
+
+/* Flags for find_file_*() functions. */
+#define FINDFILE_FILE   0       /* only files */
+#define FINDFILE_DIR    1       /* only directories */
+#define FINDFILE_BOTH   2       /* files and directories */
+
+# define W_WINCOL(wp)   (wp->w_wincol)
+# define W_WIDTH(wp)    (wp->w_width)
+# define W_ENDCOL(wp)   (wp->w_wincol + wp->w_width)
+# define W_VSEP_WIDTH(wp) (wp->w_vsep_width)
+# define W_STATUS_HEIGHT(wp) (wp->w_status_height)
+# define W_WINROW(wp)   (wp->w_winrow)
+
+#ifdef NO_EXPANDPATH
+# define gen_expand_wildcards mch_expand_wildcards
+#endif
+
+/* Values for the find_pattern_in_path() function args 'type' and 'action': */
+#define FIND_ANY        1
+#define FIND_DEFINE     2
+#define CHECK_PATH      3
+
+#define ACTION_SHOW     1
+#define ACTION_GOTO     2
+#define ACTION_SPLIT    3
+#define ACTION_SHOW_ALL 4
+# define ACTION_EXPAND  5
+
+# define SST_MIN_ENTRIES 150    /* minimal size for state stack array */
+#  define SST_MAX_ENTRIES 1000  /* maximal size for state stack array */
+# define SST_FIX_STATES  7      /* size of sst_stack[]. */
+# define SST_DIST        16     /* normal distance between entries */
+# define SST_INVALID    (synstate_T *)-1        /* invalid syn_state pointer */
+
+# define HL_CONTAINED   0x01    /* not used on toplevel */
+# define HL_TRANSP      0x02    /* has no highlighting	*/
+# define HL_ONELINE     0x04    /* match within one line only */
+# define HL_HAS_EOL     0x08    /* end pattern that matches with $ */
+# define HL_SYNC_HERE   0x10    /* sync point after this item (syncing only) */
+# define HL_SYNC_THERE  0x20    /* sync point at current line (syncing only) */
+# define HL_MATCH       0x40    /* use match ID instead of item ID */
+# define HL_SKIPNL      0x80    /* nextgroup can skip newlines */
+# define HL_SKIPWHITE   0x100   /* nextgroup can skip white space */
+# define HL_SKIPEMPTY   0x200   /* nextgroup can skip empty lines */
+# define HL_KEEPEND     0x400   /* end match always kept */
+# define HL_EXCLUDENL   0x800   /* exclude NL from match */
+# define HL_DISPLAY     0x1000  /* only used for displaying, not syncing */
+# define HL_FOLD        0x2000  /* define fold */
+# define HL_EXTEND      0x4000  /* ignore a keepend */
+# define HL_MATCHCONT   0x8000  /* match continued from previous line */
+# define HL_TRANS_CONT  0x10000 /* transparent item without contains arg */
+# define HL_CONCEAL     0x20000 /* can be concealed */
+# define HL_CONCEALENDS 0x40000 /* can be concealed */
+
+/* Values for 'options' argument in do_search() and searchit() */
+#define SEARCH_REV    0x01  /* go in reverse of previous dir. */
+#define SEARCH_ECHO   0x02  /* echo the search command and handle options */
+#define SEARCH_MSG    0x0c  /* give messages (yes, it's not 0x04) */
+#define SEARCH_NFMSG  0x08  /* give all messages except not found */
+#define SEARCH_OPT    0x10  /* interpret optional flags */
+#define SEARCH_HIS    0x20  /* put search pattern in history */
+#define SEARCH_END    0x40  /* put cursor at end of match */
+#define SEARCH_NOOF   0x80  /* don't add offset to position */
+#define SEARCH_START 0x100  /* start search without col offset */
+#define SEARCH_MARK  0x200  /* set previous context mark */
+#define SEARCH_KEEP  0x400  /* keep previous search pattern */
+#define SEARCH_PEEK  0x800  /* peek for typed char, cancel search */
+
+/* Values for find_ident_under_cursor() */
+#define FIND_IDENT      1       /* find identifier (word) */
+#define FIND_STRING     2       /* find any string (WORD) */
+#define FIND_EVAL       4       /* include "->", "[]" and "." */
+
+/* Values for file_name_in_line() */
+#define FNAME_MESS      1       /* give error message */
+#define FNAME_EXP       2       /* expand to path */
+#define FNAME_HYP       4       /* check for hypertext link */
+#define FNAME_INCL      8       /* apply 'includeexpr' */
+#define FNAME_REL       16      /* ".." and "./" are relative to the (current)
+                                   file instead of the current directory */
+
+/* Values for buflist_getfile() */
+#define GETF_SETMARK    0x01    /* set pcmark before jumping */
+#define GETF_ALT        0x02    /* jumping to alternate file (not buf num) */
+#define GETF_SWITCH     0x04    /* respect 'switchbuf' settings when jumping */
+
+/* Values for buflist_new() flags */
+#define BLN_CURBUF      1       /* May re-use curbuf for new buffer */
+#define BLN_LISTED      2       /* Put new buffer in buffer list */
+#define BLN_DUMMY       4       /* Allocating dummy buffer */
+
+/* Values for in_cinkeys() */
+#define KEY_OPEN_FORW   0x101
+#define KEY_OPEN_BACK   0x102
+#define KEY_COMPLETE    0x103   /* end of completion */
+
+/* Values for "noremap" argument of ins_typebuf().  Also used for
+ * map->m_noremap and menu->noremap[]. */
+#define REMAP_YES       0       /* allow remapping */
+#define REMAP_NONE      -1      /* no remapping */
+#define REMAP_SCRIPT    -2      /* remap script-local mappings only */
+#define REMAP_SKIP      -3      /* no remapping for first char */
+
+/* Values returned by mch_nodetype() */
+#define NODE_NORMAL     0       /* file or directory, check with os_isdir()*/
+#define NODE_WRITABLE   1       /* something we can write to (character
+                                   device, fifo, socket, ..) */
+#define NODE_OTHER      2       /* non-writable thing (e.g., block device) */
+
+/* Values for readfile() flags */
+#define READ_NEW        0x01    /* read a file into a new buffer */
+#define READ_FILTER     0x02    /* read filter output */
+#define READ_STDIN      0x04    /* read from stdin */
+#define READ_BUFFER     0x08    /* read from curbuf (converting stdin) */
+#define READ_DUMMY      0x10    /* reading into a dummy buffer */
+#define READ_KEEP_UNDO  0x20    /* keep undo info*/
+
+/* Values for change_indent() */
+#define INDENT_SET      1       /* set indent */
+#define INDENT_INC      2       /* increase indent */
+#define INDENT_DEC      3       /* decrease indent */
+
+/* Values for flags argument for findmatchlimit() */
+#define FM_BACKWARD     0x01    /* search backwards */
+#define FM_FORWARD      0x02    /* search forwards */
+#define FM_BLOCKSTOP    0x04    /* stop at start/end of block */
+#define FM_SKIPCOMM     0x08    /* skip comments */
+
+/* Values for action argument for do_buffer() */
+#define DOBUF_GOTO      0       /* go to specified buffer */
+#define DOBUF_SPLIT     1       /* split window and go to specified buffer */
+#define DOBUF_UNLOAD    2       /* unload specified buffer(s) */
+#define DOBUF_DEL       3       /* delete specified buffer(s) from buflist */
+#define DOBUF_WIPE      4       /* delete specified buffer(s) really */
+
+/* Values for start argument for do_buffer() */
+#define DOBUF_CURRENT   0       /* "count" buffer from current buffer */
+#define DOBUF_FIRST     1       /* "count" buffer from first buffer */
+#define DOBUF_LAST      2       /* "count" buffer from last buffer */
+#define DOBUF_MOD       3       /* "count" mod. buffer from current buffer */
+
+/* Values for sub_cmd and which_pat argument for search_regcomp() */
+/* Also used for which_pat argument for searchit() */
+#define RE_SEARCH       0       /* save/use pat in/from search_pattern */
+#define RE_SUBST        1       /* save/use pat in/from subst_pattern */
+#define RE_BOTH         2       /* save pat in both patterns */
+#define RE_LAST         2       /* use last used pattern if "pat" is NULL */
+
+/* Second argument for vim_regcomp(). */
+#define RE_MAGIC        1       /* 'magic' option */
+#define RE_STRING       2       /* match in string instead of buffer text */
+#define RE_STRICT       4       /* don't allow [abc] without ] */
+
+/* values for reg_do_extmatch */
+# define REX_SET        1       /* to allow \z\(...\), */
+# define REX_USE        2       /* to allow \z\1 et al. */
+
+/* flags for do_ecmd() */
+#define ECMD_HIDE       0x01    /* don't free the current buffer */
+#define ECMD_SET_HELP   0x02    /* set b_help flag of (new) buffer before
+                                   opening file */
+#define ECMD_OLDBUF     0x04    /* use existing buffer if it exists */
+#define ECMD_FORCEIT    0x08    /* ! used in Ex command */
+#define ECMD_ADDBUF     0x10    /* don't edit, just add to buffer list */
+
+/* for lnum argument in do_ecmd() */
+#define ECMD_LASTL      (linenr_T)0     /* use last position in loaded file */
+#define ECMD_LAST       (linenr_T)-1    /* use last position in all files */
+#define ECMD_ONE        (linenr_T)1     /* use first line */
+
+/* flags for do_cmdline() */
+#define DOCMD_VERBOSE   0x01    /* included command in error message */
+#define DOCMD_NOWAIT    0x02    /* don't call wait_return() and friends */
+#define DOCMD_REPEAT    0x04    /* repeat exec. until getline() returns NULL */
+#define DOCMD_KEYTYPED  0x08    /* don't reset KeyTyped */
+#define DOCMD_EXCRESET  0x10    /* reset exception environment (for debugging)*/
+#define DOCMD_KEEPLINE  0x20    /* keep typed line for repeating with "." */
+
+/* flags for beginline() */
+#define BL_WHITE        1       /* cursor on first non-white in the line */
+#define BL_SOL          2       /* use 'sol' option */
+#define BL_FIX          4       /* don't leave cursor on a NUL */
+
+/* flags for mf_sync() */
+#define MFS_ALL         1       /* also sync blocks with negative numbers */
+#define MFS_STOP        2       /* stop syncing when a character is available */
+#define MFS_FLUSH       4       /* flushed file to disk */
+#define MFS_ZERO        8       /* only write block 0 */
+
+/* flags for buf_copy_options() */
+#define BCO_ENTER       1       /* going to enter the buffer */
+#define BCO_ALWAYS      2       /* always copy the options */
+#define BCO_NOHELP      4       /* don't touch the help related options */
+
+/* flags for do_put() */
+#define PUT_FIXINDENT   1       /* make indent look nice */
+#define PUT_CURSEND     2       /* leave cursor after end of new text */
+#define PUT_CURSLINE    4       /* leave cursor on last line of new text */
+#define PUT_LINE        8       /* put register as lines */
+#define PUT_LINE_SPLIT  16      /* split line for linewise register */
+#define PUT_LINE_FORWARD 32     /* put linewise register below Visual sel. */
+
+/* flags for set_indent() */
+#define SIN_CHANGED     1       /* call changed_bytes() when line changed */
+#define SIN_INSERT      2       /* insert indent before existing text */
+#define SIN_UNDO        4       /* save line for undo before changing it */
+
+/* flags for insertchar() */
+#define INSCHAR_FORMAT  1       /* force formatting */
+#define INSCHAR_DO_COM  2       /* format comments */
+#define INSCHAR_CTRLV   4       /* char typed just after CTRL-V */
+#define INSCHAR_NO_FEX  8       /* don't use 'formatexpr' */
+#define INSCHAR_COM_LIST 16     /* format comments with list/2nd line indent */
+
+/* flags for open_line() */
+#define OPENLINE_DELSPACES  1   /* delete spaces after cursor */
+#define OPENLINE_DO_COM     2   /* format comments */
+#define OPENLINE_KEEPTRAIL  4   /* keep trailing spaces */
+#define OPENLINE_MARKFIX    8   /* fix mark positions */
+#define OPENLINE_COM_LIST  16   /* format comments with list/2nd line indent */
+
+/*
+ * There are four history tables:
+ */
+#define HIST_CMD        0       /* colon commands */
+#define HIST_SEARCH     1       /* search commands */
+#define HIST_EXPR       2       /* expressions (from entering = register) */
+#define HIST_INPUT      3       /* input() lines */
+#define HIST_DEBUG      4       /* debug commands */
+#define HIST_COUNT      5       /* number of history tables */
+
+/*
+ * Flags for chartab[].
+ */
+#define CT_CELL_MASK    0x07    /* mask: nr of display cells (1, 2 or 4) */
+#define CT_PRINT_CHAR   0x10    /* flag: set for printable chars */
+#define CT_ID_CHAR      0x20    /* flag: set for ID chars */
+#define CT_FNAME_CHAR   0x40    /* flag: set for file name chars */
+
+/*
+ * Values for do_tag().
+ */
+#define DT_TAG          1       /* jump to newer position or same tag again */
+#define DT_POP          2       /* jump to older position */
+#define DT_NEXT         3       /* jump to next match of same tag */
+#define DT_PREV         4       /* jump to previous match of same tag */
+#define DT_FIRST        5       /* jump to first match of same tag */
+#define DT_LAST         6       /* jump to first match of same tag */
+#define DT_SELECT       7       /* jump to selection from list */
+#define DT_HELP         8       /* like DT_TAG, but no wildcards */
+#define DT_JUMP         9       /* jump to new tag or selection from list */
+#define DT_CSCOPE       10      /* cscope find command (like tjump) */
+#define DT_LTAG         11      /* tag using location list */
+#define DT_FREE         99      /* free cached matches */
+
+/*
+ * flags for find_tags().
+ */
+#define TAG_HELP        1       /* only search for help tags */
+#define TAG_NAMES       2       /* only return name of tag */
+#define TAG_REGEXP      4       /* use tag pattern as regexp */
+#define TAG_NOIC        8       /* don't always ignore case */
+# define TAG_CSCOPE     16      /* cscope tag */
+#define TAG_VERBOSE     32      /* message verbosity */
+#define TAG_INS_COMP    64      /* Currently doing insert completion */
+#define TAG_KEEP_LANG   128     /* keep current language */
+
+#define TAG_MANY        300     /* When finding many tags (for completion),
+                                   find up to this many tags */
+
+/*
+ * Types of dialogs passed to do_vim_dialog().
+ */
+#define VIM_GENERIC     0
+#define VIM_ERROR       1
+#define VIM_WARNING     2
+#define VIM_INFO        3
+#define VIM_QUESTION    4
+#define VIM_LAST_TYPE   4       /* sentinel value */
+
+/*
+ * Return values for functions like gui_yesnocancel()
+ */
+#define VIM_YES         2
+#define VIM_NO          3
+#define VIM_CANCEL      4
+#define VIM_ALL         5
+#define VIM_DISCARDALL  6
+
+/*
+ * arguments for win_split()
+ */
+#define WSP_ROOM        1       /* require enough room */
+#define WSP_VERT        2       /* split vertically */
+#define WSP_TOP         4       /* window at top-left of shell */
+#define WSP_BOT         8       /* window at bottom-right of shell */
+#define WSP_HELP        16      /* creating the help window */
+#define WSP_BELOW       32      /* put new window below/right */
+#define WSP_ABOVE       64      /* put new window above/left */
+#define WSP_NEWLOC      128     /* don't copy location list */
+
+/*
+ * arguments for gui_set_shellsize()
+ */
+#define RESIZE_VERT     1       /* resize vertically */
+#define RESIZE_HOR      2       /* resize horizontally */
+#define RESIZE_BOTH     15      /* resize in both directions */
+
+/*
+ * flags for check_changed()
+ */
+#define CCGD_AW         1       /* do autowrite if buffer was changed */
+#define CCGD_MULTWIN    2       /* check also when several wins for the buf */
+#define CCGD_FORCEIT    4       /* ! used */
+#define CCGD_ALLBUF     8       /* may write all buffers */
+#define CCGD_EXCMD      16      /* may suggest using ! */
+
+/*
+ * "flags" values for option-setting functions.
+ * When OPT_GLOBAL and OPT_LOCAL are both missing, set both local and global
+ * values, get local value.
+ */
+#define OPT_FREE        1       /* free old value if it was allocated */
+#define OPT_GLOBAL      2       /* use global value */
+#define OPT_LOCAL       4       /* use local value */
+#define OPT_MODELINE    8       /* option in modeline */
+#define OPT_WINONLY     16      /* only set window-local options */
+#define OPT_NOWIN       32      /* don't set window-local options */
+
+/* Magic chars used in confirm dialog strings */
+#define DLG_BUTTON_SEP  '\n'
+#define DLG_HOTKEY_CHAR '&'
+
+/* Values for "starting" */
+#define NO_SCREEN       2       /* no screen updating yet */
+#define NO_BUFFERS      1       /* not all buffers loaded yet */
+/*			0	   not starting anymore */
+
+/* Values for swap_exists_action: what to do when swap file already exists */
+#define SEA_NONE        0       /* don't use dialog */
+#define SEA_DIALOG      1       /* use dialog when possible */
+#define SEA_QUIT        2       /* quit editing the file */
+#define SEA_RECOVER     3       /* recover the file */
+
+/*
+ * Minimal size for block 0 of a swap file.
+ * NOTE: This depends on size of struct block0! It's not done with a sizeof(),
+ * because struct block0 is defined in memline.c (Sorry).
+ * The maximal block size is arbitrary.
+ */
+#define MIN_SWAP_PAGE_SIZE 1048
+#define MAX_SWAP_PAGE_SIZE 50000
+
+/* Special values for current_SID. */
+#define SID_MODELINE    -1      /* when using a modeline */
+#define SID_CMDARG      -2      /* for "--cmd" argument */
+#define SID_CARG        -3      /* for "-c" argument */
+#define SID_ENV         -4      /* for sourcing environment variable */
+#define SID_ERROR       -5      /* option was reset because of an error */
+#define SID_NONE        -6      /* don't set scriptID */
+
+/*
+ * Events for autocommands.
+ */
+enum auto_event {
+  EVENT_BUFADD = 0,             /* after adding a buffer to the buffer list */
+  EVENT_BUFNEW,                 /* after creating any buffer */
+  EVENT_BUFDELETE,              /* deleting a buffer from the buffer list */
+  EVENT_BUFWIPEOUT,             /* just before really deleting a buffer */
+  EVENT_BUFENTER,               /* after entering a buffer */
+  EVENT_BUFFILEPOST,            /* after renaming a buffer */
+  EVENT_BUFFILEPRE,             /* before renaming a buffer */
+  EVENT_BUFLEAVE,               /* before leaving a buffer */
+  EVENT_BUFNEWFILE,             /* when creating a buffer for a new file */
+  EVENT_BUFREADPOST,            /* after reading a buffer */
+  EVENT_BUFREADPRE,             /* before reading a buffer */
+  EVENT_BUFREADCMD,             /* read buffer using command */
+  EVENT_BUFUNLOAD,              /* just before unloading a buffer */
+  EVENT_BUFHIDDEN,              /* just after buffer becomes hidden */
+  EVENT_BUFWINENTER,            /* after showing a buffer in a window */
+  EVENT_BUFWINLEAVE,            /* just after buffer removed from window */
+  EVENT_BUFWRITEPOST,           /* after writing a buffer */
+  EVENT_BUFWRITEPRE,            /* before writing a buffer */
+  EVENT_BUFWRITECMD,            /* write buffer using command */
+  EVENT_CMDWINENTER,            /* after entering the cmdline window */
+  EVENT_CMDWINLEAVE,            /* before leaving the cmdline window */
+  EVENT_COLORSCHEME,            /* after loading a colorscheme */
+  EVENT_COMPLETEDONE,           /* after finishing insert complete */
+  EVENT_FILEAPPENDPOST,         /* after appending to a file */
+  EVENT_FILEAPPENDPRE,          /* before appending to a file */
+  EVENT_FILEAPPENDCMD,          /* append to a file using command */
+  EVENT_FILECHANGEDSHELL,       /* after shell command that changed file */
+  EVENT_FILECHANGEDSHELLPOST,   /* after (not) reloading changed file */
+  EVENT_FILECHANGEDRO,          /* before first change to read-only file */
+  EVENT_FILEREADPOST,           /* after reading a file */
+  EVENT_FILEREADPRE,            /* before reading a file */
+  EVENT_FILEREADCMD,            /* read from a file using command */
+  EVENT_FILETYPE,               /* new file type detected (user defined) */
+  EVENT_FILEWRITEPOST,          /* after writing a file */
+  EVENT_FILEWRITEPRE,           /* before writing a file */
+  EVENT_FILEWRITECMD,           /* write to a file using command */
+  EVENT_FILTERREADPOST,         /* after reading from a filter */
+  EVENT_FILTERREADPRE,          /* before reading from a filter */
+  EVENT_FILTERWRITEPOST,        /* after writing to a filter */
+  EVENT_FILTERWRITEPRE,         /* before writing to a filter */
+  EVENT_FOCUSGAINED,            /* got the focus */
+  EVENT_FOCUSLOST,              /* lost the focus to another app */
+  EVENT_GUIENTER,               /* after starting the GUI */
+  EVENT_GUIFAILED,              /* after starting the GUI failed */
+  EVENT_INSERTCHANGE,           /* when changing Insert/Replace mode */
+  EVENT_INSERTENTER,            /* when entering Insert mode */
+  EVENT_INSERTLEAVE,            /* when leaving Insert mode */
+  EVENT_JOBACTIVITY,            /* when job sent some data */
+  EVENT_MENUPOPUP,              /* just before popup menu is displayed */
+  EVENT_QUICKFIXCMDPOST,        /* after :make, :grep etc. */
+  EVENT_QUICKFIXCMDPRE,         /* before :make, :grep etc. */
+  EVENT_QUITPRE,                /* before :quit */
+  EVENT_SESSIONLOADPOST,        /* after loading a session file */
+  EVENT_STDINREADPOST,          /* after reading from stdin */
+  EVENT_STDINREADPRE,           /* before reading from stdin */
+  EVENT_SYNTAX,                 /* syntax selected */
+  EVENT_TERMCHANGED,            /* after changing 'term' */
+  EVENT_TERMRESPONSE,           /* after setting "v:termresponse" */
+  EVENT_USER,                   /* user defined autocommand */
+  EVENT_VIMENTER,               /* after starting Vim */
+  EVENT_VIMLEAVE,               /* before exiting Vim */
+  EVENT_VIMLEAVEPRE,            /* before exiting Vim and writing .viminfo */
+  EVENT_VIMRESIZED,             /* after Vim window was resized */
+  EVENT_WINENTER,               /* after entering a window */
+  EVENT_WINLEAVE,               /* before leaving a window */
+  EVENT_ENCODINGCHANGED,        /* after changing the 'encoding' option */
+  EVENT_INSERTCHARPRE,          /* before inserting a char */
+  EVENT_CURSORHOLD,             /* cursor in same position for a while */
+  EVENT_CURSORHOLDI,            /* idem, in Insert mode */
+  EVENT_FUNCUNDEFINED,          /* if calling a function which doesn't exist */
+  EVENT_REMOTEREPLY,            /* upon string reception from a remote vim */
+  EVENT_SWAPEXISTS,             /* found existing swap file */
+  EVENT_SOURCEPRE,              /* before sourcing a Vim script */
+  EVENT_SOURCECMD,              /* sourcing a Vim script using command */
+  EVENT_SPELLFILEMISSING,       /* spell file missing */
+  EVENT_CURSORMOVED,            /* cursor was moved */
+  EVENT_CURSORMOVEDI,           /* cursor was moved in Insert mode */
+  EVENT_TABLEAVE,               /* before leaving a tab page */
+  EVENT_TABENTER,               /* after entering a tab page */
+  EVENT_SHELLCMDPOST,           /* after ":!cmd" */
+  EVENT_SHELLFILTERPOST,        /* after ":1,2!cmd", ":w !cmd", ":r !cmd". */
+  EVENT_TEXTCHANGED,            /* text was modified */
+  EVENT_TEXTCHANGEDI,           /* text was modified in Insert mode*/
+  NUM_EVENTS                    /* MUST be the last one */
+};
+
+typedef enum auto_event event_T;
+
+/*
+ * Values for index in highlight_attr[].
+ * When making changes, also update HL_FLAGS below!  And update the default
+ * value of 'highlight' in option.c.
+ */
+typedef enum {
+  HLF_8 = 0         /* Meta & special keys listed with ":map", text that is
+                       displayed different from what it is */
+  , HLF_AT          /* @ and ~ characters at end of screen, characters that
+                       don't really exist in the text */
+  , HLF_D           /* directories in CTRL-D listing */
+  , HLF_E           /* error messages */
+  , HLF_I           /* incremental search */
+  , HLF_L           /* last search string */
+  , HLF_M           /* "--More--" message */
+  , HLF_CM          /* Mode (e.g., "-- INSERT --") */
+  , HLF_N           /* line number for ":number" and ":#" commands */
+  , HLF_CLN         /* current line number */
+  , HLF_R           /* return to continue message and yes/no questions */
+  , HLF_S           /* status lines */
+  , HLF_SNC         /* status lines of not-current windows */
+  , HLF_C           /* column to separate vertically split windows */
+  , HLF_T           /* Titles for output from ":set all", ":autocmd" etc. */
+  , HLF_V           /* Visual mode */
+  , HLF_VNC         /* Visual mode, autoselecting and not clipboard owner */
+  , HLF_W           /* warning messages */
+  , HLF_WM          /* Wildmenu highlight */
+  , HLF_FL          /* Folded line */
+  , HLF_FC          /* Fold column */
+  , HLF_ADD         /* Added diff line */
+  , HLF_CHD         /* Changed diff line */
+  , HLF_DED         /* Deleted diff line */
+  , HLF_TXD         /* Text Changed in diff line */
+  , HLF_CONCEAL     /* Concealed text */
+  , HLF_SC          /* Sign column */
+  , HLF_SPB         /* SpellBad */
+  , HLF_SPC         /* SpellCap */
+  , HLF_SPR         /* SpellRare */
+  , HLF_SPL         /* SpellLocal */
+  , HLF_PNI         /* popup menu normal item */
+  , HLF_PSI         /* popup menu selected item */
+  , HLF_PSB         /* popup menu scrollbar */
+  , HLF_PST         /* popup menu scrollbar thumb */
+  , HLF_TP          /* tabpage line */
+  , HLF_TPS         /* tabpage line selected */
+  , HLF_TPF         /* tabpage line filler */
+  , HLF_CUC         /* 'cursurcolumn' */
+  , HLF_CUL         /* 'cursurline' */
+  , HLF_MC          /* 'colorcolumn' */
+  , HLF_COUNT       /* MUST be the last one */
+} hlf_T;
+
+/* The HL_FLAGS must be in the same order as the HLF_ enums!
+ * When changing this also adjust the default for 'highlight'. */
+#define HL_FLAGS {'8', '@', 'd', 'e', 'i', 'l', 'm', 'M', 'n', 'N', 'r', 's', \
+                  'S', 'c', 't', 'v', 'V', 'w', 'W', 'f', 'F', 'A', 'C', 'D', \
+                  'T', '-', '>', 'B', 'P', 'R', 'L', '+', '=', 'x', 'X', '*', \
+                  '#', '_', '!', '.', 'o'}
+
+/*
+ * Boolean constants
+ */
+#ifndef TRUE
+# define FALSE  0           /* note: this is an int, not a long! */
+# define TRUE   1
+#endif
+
+#define MAYBE   2           /* sometimes used for a variant on TRUE