xref: /vim-8.2.3635/src/structs.h (revision 0fa313a7)
1 /* vi:set ts=8 sts=4 sw=4:
2  *
3  * VIM - Vi IMproved	by Bram Moolenaar
4  *
5  * Do ":help uganda"  in Vim to read copying and usage conditions.
6  * Do ":help credits" in Vim to see a list of people who contributed.
7  */
8 
9 /*
10  * This file contains various definitions of structures that are used by Vim
11  */
12 
13 /*
14  * There is something wrong in the SAS compiler that makes typedefs not
15  * valid in include files.  Has been fixed in version 6.58.
16  */
17 #if defined(SASC) && SASC < 658
18 typedef long		linenr_T;
19 typedef unsigned	colnr_T;
20 typedef unsigned short	short_u;
21 #endif
22 
23 /*
24  * position in file or buffer
25  */
26 typedef struct
27 {
28     linenr_T	lnum;	/* line number */
29     colnr_T	col;	/* column number */
30 #ifdef FEAT_VIRTUALEDIT
31     colnr_T	coladd;
32 #endif
33 } pos_T;
34 
35 #ifdef FEAT_VIRTUALEDIT
36 # define INIT_POS_T {0, 0, 0}
37 #else
38 # define INIT_POS_T {0, 0}
39 #endif
40 
41 /*
42  * Same, but without coladd.
43  */
44 typedef struct
45 {
46     linenr_T	lnum;	/* line number */
47     colnr_T	col;	/* column number */
48 } lpos_T;
49 
50 /*
51  * Structure used for growing arrays.
52  * This is used to store information that only grows, is deleted all at
53  * once, and needs to be accessed by index.  See ga_clear() and ga_grow().
54  */
55 typedef struct growarray
56 {
57     int	    ga_len;		    /* current number of items used */
58     int	    ga_maxlen;		    /* maximum number of items possible */
59     int	    ga_itemsize;	    /* sizeof(item) */
60     int	    ga_growsize;	    /* number of items to grow each time */
61     void    *ga_data;		    /* pointer to the first item */
62 } garray_T;
63 
64 #define GA_EMPTY    {0, 0, 0, 0, NULL}
65 
66 /*
67  * This is here because regexp.h needs pos_T and below regprog_T is used.
68  */
69 #include "regexp.h"
70 
71 typedef struct window	win_T;
72 typedef struct wininfo	wininfo_T;
73 typedef struct frame	frame_T;
74 typedef int		scid_T;		/* script ID */
75 
76 /*
77  * This is here because gui.h needs the pos_T and win_T, and win_T needs gui.h
78  * for scrollbar_T.
79  */
80 #ifdef FEAT_GUI
81 # include "gui.h"
82 #else
83 # ifdef FEAT_XCLIPBOARD
84 #  include <X11/Intrinsic.h>
85 # endif
86 # define guicolor_T int		/* avoid error in prototypes */
87 #endif
88 
89 /*
90  * marks: positions in a file
91  * (a normal mark is a lnum/col pair, the same as a file position)
92  */
93 
94 /* (Note: for EBCDIC there are more than 26, because there are gaps in the
95  * alphabet coding.  To minimize changes to the code, I decided to just
96  * increase the number of possible marks. */
97 #define NMARKS		('z' - 'a' + 1)	/* max. # of named marks */
98 #define JUMPLISTSIZE	100		/* max. # of marks in jump list */
99 #define TAGSTACKSIZE	20		/* max. # of tags in tag stack */
100 
101 typedef struct filemark
102 {
103     pos_T	mark;		/* cursor position */
104     int		fnum;		/* file number */
105 } fmark_T;
106 
107 /* Xtended file mark: also has a file name */
108 typedef struct xfilemark
109 {
110     fmark_T	fmark;
111     char_u	*fname;		/* file name, used when fnum == 0 */
112 } xfmark_T;
113 
114 /*
115  * The taggy struct is used to store the information about a :tag command.
116  */
117 typedef struct taggy
118 {
119     char_u	*tagname;	/* tag name */
120     fmark_T	fmark;		/* cursor position BEFORE ":tag" */
121     int		cur_match;	/* match number */
122     int		cur_fnum;	/* buffer number used for cur_match */
123 } taggy_T;
124 
125 /*
126  * Structure that contains all options that are local to a window.
127  * Used twice in a window: for the current buffer and for all buffers.
128  * Also used in wininfo_T.
129  */
130 typedef struct
131 {
132 #ifdef FEAT_ARABIC
133     int		wo_arab;
134 # define w_p_arab w_onebuf_opt.wo_arab	/* 'arabic' */
135 #endif
136 #ifdef FEAT_DIFF
137     int		wo_diff;
138 # define w_p_diff w_onebuf_opt.wo_diff	/* 'diff' */
139 #endif
140 #ifdef FEAT_FOLDING
141     long	wo_fdc;
142 # define w_p_fdc w_onebuf_opt.wo_fdc	/* 'foldcolumn' */
143     int		wo_fen;
144 # define w_p_fen w_onebuf_opt.wo_fen	/* 'foldenable' */
145     char_u	*wo_fdi;
146 # define w_p_fdi w_onebuf_opt.wo_fdi	/* 'foldignore' */
147     long	wo_fdl;
148 # define w_p_fdl w_onebuf_opt.wo_fdl	/* 'foldlevel' */
149     char_u	*wo_fdm;
150 # define w_p_fdm w_onebuf_opt.wo_fdm	/* 'foldmethod' */
151     long	wo_fml;
152 # define w_p_fml w_onebuf_opt.wo_fml	/* 'foldminlines' */
153     long	wo_fdn;
154 # define w_p_fdn w_onebuf_opt.wo_fdn	/* 'foldnextmax' */
155 # ifdef FEAT_EVAL
156     char_u	*wo_fde;
157 # define w_p_fde w_onebuf_opt.wo_fde	/* 'foldexpr' */
158     char_u	*wo_fdt;
159 #  define w_p_fdt w_onebuf_opt.wo_fdt	/* 'foldtext' */
160 # endif
161     char_u	*wo_fmr;
162 # define w_p_fmr w_onebuf_opt.wo_fmr	/* 'foldmarker' */
163 #endif
164 #ifdef FEAT_LINEBREAK
165     int		wo_lbr;
166 # define w_p_lbr w_onebuf_opt.wo_lbr	/* 'linebreak' */
167 #endif
168     int		wo_list;
169 #define w_p_list w_onebuf_opt.wo_list	/* 'list' */
170     int		wo_nu;
171 #define w_p_nu w_onebuf_opt.wo_nu	/* 'number' */
172 #ifdef FEAT_LINEBREAK
173     long	wo_nuw;
174 # define w_p_nuw w_onebuf_opt.wo_nuw	/* 'numberwidth' */
175 #endif
176 #if defined(FEAT_WINDOWS)
177     int		wo_wfh;
178 # define w_p_wfh w_onebuf_opt.wo_wfh	/* 'winfixheight' */
179 #endif
180 #if defined(FEAT_WINDOWS) && defined(FEAT_QUICKFIX)
181     int		wo_pvw;
182 # define w_p_pvw w_onebuf_opt.wo_pvw	/* 'previewwindow' */
183 #endif
184 #ifdef FEAT_RIGHTLEFT
185     int		wo_rl;
186 # define w_p_rl w_onebuf_opt.wo_rl	/* 'rightleft' */
187     char_u	*wo_rlc;
188 # define w_p_rlc w_onebuf_opt.wo_rlc	/* 'rightleftcmd' */
189 #endif
190     long	wo_scr;
191 #define w_p_scr w_onebuf_opt.wo_scr	/* 'scroll' */
192 #ifdef FEAT_SYN_HL
193     int		wo_spell;
194 #define w_p_spell w_onebuf_opt.wo_spell	/* 'spell' */
195 #endif
196 #ifdef FEAT_STL_OPT
197     char_u	*wo_stl;
198 #define w_p_stl w_onebuf_opt.wo_stl	/* 'statusline' */
199 #endif
200 #ifdef FEAT_SCROLLBIND
201     int		wo_scb;
202 # define w_p_scb w_onebuf_opt.wo_scb	/* 'scrollbind' */
203 #endif
204     int		wo_wrap;
205 #define w_p_wrap w_onebuf_opt.wo_wrap	/* 'wrap' */
206 } winopt_T;
207 
208 /*
209  * Window info stored with a buffer.
210  *
211  * Two types of info are kept for a buffer which are associated with a
212  * specific window:
213  * 1. Each window can have a different line number associated with a buffer.
214  * 2. The window-local options for a buffer work in a similar way.
215  * The window-info is kept in a list at b_wininfo.  It is kept in
216  * most-recently-used order.
217  */
218 struct wininfo
219 {
220     wininfo_T	*wi_next;	/* next entry or NULL for last entry */
221     wininfo_T	*wi_prev;	/* previous entry or NULL for first entry */
222     win_T	*wi_win;	/* pointer to window that did set wi_lnum */
223     pos_T	wi_fpos;	/* last cursor position in the file */
224     int		wi_optset;	/* TRUE when wi_opt has useful values */
225     winopt_T	wi_opt;		/* local window options */
226 #ifdef FEAT_FOLDING
227     int		wi_fold_manual;	/* copy of w_fold_manual */
228     garray_T	wi_folds;	/* clone of w_folds */
229 #endif
230 };
231 
232 /*
233  * Info used to pass info about a fold from the fold-detection code to the
234  * code that displays the foldcolumn.
235  */
236 typedef struct foldinfo
237 {
238     int		fi_level;	/* level of the fold; when this is zero the
239 				   other fields are invalid */
240     int		fi_lnum;	/* line number where fold starts */
241     int		fi_low_level;	/* lowest fold level that starts in the same
242 				   line */
243 } foldinfo_T;
244 
245 /*
246  * stuctures used for undo
247  */
248 
249 typedef struct u_entry u_entry_T;
250 typedef struct u_header u_header_T;
251 struct u_entry
252 {
253     u_entry_T	*ue_next;	/* pointer to next entry in list */
254     linenr_T	ue_top;		/* number of line above undo block */
255     linenr_T	ue_bot;		/* number of line below undo block */
256     linenr_T	ue_lcount;	/* linecount when u_save called */
257     char_u	**ue_array;	/* array of lines in undo block */
258     long	ue_size;	/* number of lines in ue_array */
259 };
260 
261 struct u_header
262 {
263     u_header_T	*uh_next;	/* pointer to next header in list */
264     u_header_T	*uh_prev;	/* pointer to previous header in list */
265     u_entry_T	*uh_entry;	/* pointer to first entry */
266     u_entry_T	*uh_getbot_entry; /* pointer to where ue_bot must be set */
267     pos_T	uh_cursor;	/* cursor position before saving */
268 #ifdef FEAT_VIRTUALEDIT
269     long	uh_cursor_vcol;
270 #endif
271     int		uh_flags;	/* see below */
272     pos_T	uh_namedm[NMARKS];	/* marks before undo/after redo */
273 };
274 
275 /* values for uh_flags */
276 #define UH_CHANGED  0x01	/* b_changed flag before undo/after redo */
277 #define UH_EMPTYBUF 0x02	/* buffer was empty */
278 
279 /*
280  * stuctures used in undo.c
281  */
282 #if SIZEOF_INT > 2
283 # define ALIGN_LONG	/* longword alignment and use filler byte */
284 # define ALIGN_SIZE (sizeof(long))
285 #else
286 # define ALIGN_SIZE (sizeof(short))
287 #endif
288 
289 #define ALIGN_MASK (ALIGN_SIZE - 1)
290 
291 typedef struct m_info minfo_T;
292 
293 /*
294  * stucture used to link chunks in one of the free chunk lists.
295  */
296 struct m_info
297 {
298 #ifdef ALIGN_LONG
299     long_u	m_size;		/* size of the chunk (including m_info) */
300 #else
301     short_u	m_size;		/* size of the chunk (including m_info) */
302 #endif
303     minfo_T	*m_next;	/* pointer to next free chunk in the list */
304 };
305 
306 /*
307  * structure used to link blocks in the list of allocated blocks.
308  */
309 typedef struct m_block mblock_T;
310 struct m_block
311 {
312     mblock_T	*mb_next;	/* pointer to next allocated block */
313     size_t	mb_size;	/* total size of all chunks in this block */
314     size_t	mb_maxsize;	/* size of largest fee chunk */
315     minfo_T	mb_info;	/* head of free chunk list for this block */
316 };
317 
318 /*
319  * things used in memfile.c
320  */
321 
322 typedef struct block_hdr    bhdr_T;
323 typedef struct memfile	    memfile_T;
324 typedef long		    blocknr_T;
325 
326 /*
327  * for each (previously) used block in the memfile there is one block header.
328  *
329  * The block may be linked in the used list OR in the free list.
330  * The used blocks are also kept in hash lists.
331  *
332  * The used list is a doubly linked list, most recently used block first.
333  *	The blocks in the used list have a block of memory allocated.
334  *	mf_used_count is the number of pages in the used list.
335  * The hash lists are used to quickly find a block in the used list.
336  * The free list is a single linked list, not sorted.
337  *	The blocks in the free list have no block of memory allocated and
338  *	the contents of the block in the file (if any) is irrelevant.
339  */
340 
341 struct block_hdr
342 {
343     bhdr_T	*bh_next;	    /* next block_hdr in free or used list */
344     bhdr_T	*bh_prev;	    /* previous block_hdr in used list */
345     bhdr_T	*bh_hash_next;	    /* next block_hdr in hash list */
346     bhdr_T	*bh_hash_prev;	    /* previous block_hdr in hash list */
347     blocknr_T	bh_bnum;		/* block number */
348     char_u	*bh_data;	    /* pointer to memory (for used block) */
349     int		bh_page_count;	    /* number of pages in this block */
350 
351 #define BH_DIRTY    1
352 #define BH_LOCKED   2
353     char	bh_flags;	    /* BH_DIRTY or BH_LOCKED */
354 };
355 
356 /*
357  * when a block with a negative number is flushed to the file, it gets
358  * a positive number. Because the reference to the block is still the negative
359  * number, we remember the translation to the new positive number in the
360  * double linked trans lists. The structure is the same as the hash lists.
361  */
362 typedef struct nr_trans NR_TRANS;
363 
364 struct nr_trans
365 {
366     NR_TRANS	*nt_next;		/* next nr_trans in hash list */
367     NR_TRANS	*nt_prev;		/* previous nr_trans in hash list */
368     blocknr_T	nt_old_bnum;		/* old, negative, number */
369     blocknr_T	nt_new_bnum;		/* new, positive, number */
370 };
371 
372 /*
373  * structure used to store one block of the stuff/redo/recording buffers
374  */
375 struct buffblock
376 {
377     struct buffblock	*b_next;	/* pointer to next buffblock */
378     char_u		b_str[1];	/* contents (actually longer) */
379 };
380 
381 /*
382  * header used for the stuff buffer and the redo buffer
383  */
384 struct buffheader
385 {
386     struct buffblock	bh_first;	/* first (dummy) block of list */
387     struct buffblock	*bh_curr;	/* buffblock for appending */
388     int			bh_index;	/* index for reading */
389     int			bh_space;	/* space in bh_curr for appending */
390 };
391 
392 /*
393  * used for completion on the command line
394  */
395 typedef struct expand
396 {
397     int		xp_context;		/* type of expansion */
398     char_u	*xp_pattern;		/* start of item to expand */
399 #if defined(FEAT_USR_CMDS) && defined(FEAT_EVAL) && defined(FEAT_CMDL_COMPL)
400     char_u	*xp_arg;		/* completion function */
401     int		xp_scriptID;		/* SID for completion function */
402 #endif
403     int		xp_backslash;		/* one of the XP_BS_ values */
404     int		xp_numfiles;		/* number of files found by
405 						    file name completion */
406     char_u	**xp_files;		/* list of files */
407 } expand_T;
408 
409 /* values for xp_backslash */
410 #define XP_BS_NONE	0	/* nothing special for backslashes */
411 #define XP_BS_ONE	1	/* uses one backslash before a space */
412 #define XP_BS_THREE	2	/* uses three backslashes before a space */
413 
414 /*
415  * Command modifiers ":vertical", ":browse", ":confirm" and ":hide" set a flag.
416  * This needs to be saved for recursive commands, put them in a structure for
417  * easy manipulation.
418  */
419 typedef struct
420 {
421     int		hide;			/* TRUE when ":hide" was used */
422 # ifdef FEAT_BROWSE
423     int		browse;			/* TRUE to invoke file dialog */
424 # endif
425 # ifdef FEAT_WINDOWS
426     int		split;			/* flags for win_split() */
427 # endif
428 # if defined(FEAT_GUI_DIALOG) || defined(FEAT_CON_DIALOG)
429     int		confirm;		/* TRUE to invoke yes/no dialog */
430 # endif
431     int		keepalt;		/* TRUE when ":keepalt" was used */
432     int		keepmarks;		/* TRUE when ":keepmarks" was used */
433     int		keepjumps;		/* TRUE when ":keepjumps" was used */
434     int		lockmarks;		/* TRUE when ":lockmarks" was used */
435 } cmdmod_T;
436 
437 /*
438  * Simplistic hashing scheme to quickly locate the blocks in the used list.
439  * 64 blocks are found directly (64 * 4K = 256K, most files are smaller).
440  */
441 #define MEMHASHSIZE	64
442 #define MEMHASH(nr)	((nr) & (MEMHASHSIZE - 1))
443 
444 struct memfile
445 {
446     char_u	*mf_fname;		/* name of the file */
447     char_u	*mf_ffname;		/* idem, full path */
448     int		mf_fd;			/* file descriptor */
449     bhdr_T	*mf_free_first;		/* first block_hdr in free list */
450     bhdr_T	*mf_used_first;		/* mru block_hdr in used list */
451     bhdr_T	*mf_used_last;		/* lru block_hdr in used list */
452     unsigned	mf_used_count;		/* number of pages in used list */
453     unsigned	mf_used_count_max;	/* maximum number of pages in memory */
454     bhdr_T	*mf_hash[MEMHASHSIZE];	/* array of hash lists */
455     NR_TRANS	*mf_trans[MEMHASHSIZE];	/* array of trans lists */
456     blocknr_T	mf_blocknr_max;		/* highest positive block number + 1*/
457     blocknr_T	mf_blocknr_min;		/* lowest negative block number - 1 */
458     blocknr_T	mf_neg_count;		/* number of negative blocks numbers */
459     blocknr_T	mf_infile_count;	/* number of pages in the file */
460     unsigned	mf_page_size;		/* number of bytes in a page */
461     int		mf_dirty;		/* TRUE if there are dirty blocks */
462 };
463 
464 /*
465  * things used in memline.c
466  */
467 /*
468  * When searching for a specific line, we remember what blocks in the tree
469  * are the branches leading to that block. This is stored in ml_stack.  Each
470  * entry is a pointer to info in a block (may be data block or pointer block)
471  */
472 typedef struct info_pointer
473 {
474     blocknr_T	ip_bnum;	/* block number */
475     linenr_T	ip_low;		/* lowest lnum in this block */
476     linenr_T	ip_high;	/* highest lnum in this block */
477     int		ip_index;	/* index for block with current lnum */
478 } infoptr_T;	/* block/index pair */
479 
480 #ifdef FEAT_BYTEOFF
481 typedef struct ml_chunksize
482 {
483     int		mlcs_numlines;
484     long	mlcs_totalsize;
485 } chunksize_T;
486 
487  /* Flags when calling ml_updatechunk() */
488 
489 #define ML_CHNK_ADDLINE 1
490 #define ML_CHNK_DELLINE 2
491 #define ML_CHNK_UPDLINE 3
492 #endif
493 
494 /*
495  * the memline structure holds all the information about a memline
496  */
497 typedef struct memline
498 {
499     linenr_T	ml_line_count;	/* number of lines in the buffer */
500 
501     memfile_T	*ml_mfp;	/* pointer to associated memfile */
502 
503 #define ML_EMPTY	1	/* empty buffer */
504 #define ML_LINE_DIRTY	2	/* cached line was changed and allocated */
505 #define ML_LOCKED_DIRTY	4	/* ml_locked was changed */
506 #define ML_LOCKED_POS	8	/* ml_locked needs positive block number */
507     int		ml_flags;
508 
509     infoptr_T	*ml_stack;	/* stack of pointer blocks (array of IPTRs) */
510     int		ml_stack_top;	/* current top if ml_stack */
511     int		ml_stack_size;	/* total number of entries in ml_stack */
512 
513     linenr_T	ml_line_lnum;	/* line number of cached line, 0 if not valid */
514     char_u	*ml_line_ptr;	/* pointer to cached line */
515 
516     bhdr_T	*ml_locked;	/* block used by last ml_get */
517     linenr_T	ml_locked_low;	/* first line in ml_locked */
518     linenr_T	ml_locked_high;	/* last line in ml_locked */
519     int		ml_locked_lineadd;  /* number of lines inserted in ml_locked */
520 #ifdef FEAT_BYTEOFF
521     chunksize_T *ml_chunksize;
522     int		ml_numchunks;
523     int		ml_usedchunks;
524 #endif
525 } memline_T;
526 
527 #if defined(FEAT_SIGNS) || defined(PROTO)
528 typedef struct signlist signlist_T;
529 
530 struct signlist
531 {
532     int		id;		/* unique identifier for each placed sign */
533     linenr_T	lnum;		/* line number which has this sign */
534     int		typenr;		/* typenr of sign */
535     signlist_T	*next;		/* next signlist entry */
536 # ifdef FEAT_NETBEANS_INTG
537     signlist_T  *prev;		/* previous entry -- for easy reordering */
538 # endif
539 };
540 
541 /* type argument for buf_getsigntype() */
542 #define SIGN_ANY	0
543 #define SIGN_LINEHL	1
544 #define SIGN_ICON	2
545 #define SIGN_TEXT	3
546 #endif
547 
548 /*
549  * Argument list: Array of file names.
550  * Used for the global argument list and the argument lists local to a window.
551  */
552 typedef struct arglist
553 {
554     garray_T	al_ga;		/* growarray with the array of file names */
555     int		al_refcount;	/* number of windows using this arglist */
556 } alist_T;
557 
558 /*
559  * For each argument remember the file name as it was given, and the buffer
560  * number that contains the expanded file name (required for when ":cd" is
561  * used.
562  */
563 typedef struct argentry
564 {
565     char_u	*ae_fname;	/* file name as specified */
566     int		ae_fnum;	/* buffer number with expanded file name */
567 } aentry_T;
568 
569 #ifdef FEAT_WINDOWS
570 # define ALIST(win) (win)->w_alist
571 #else
572 # define ALIST(win) (&global_alist)
573 #endif
574 #define GARGLIST	((aentry_T *)global_alist.al_ga.ga_data)
575 #define ARGLIST		((aentry_T *)ALIST(curwin)->al_ga.ga_data)
576 #define WARGLIST(wp)	((aentry_T *)ALIST(wp)->al_ga.ga_data)
577 #define AARGLIST(al)	((aentry_T *)((al)->al_ga.ga_data))
578 #define GARGCOUNT	(global_alist.al_ga.ga_len)
579 #define ARGCOUNT	(ALIST(curwin)->al_ga.ga_len)
580 #define WARGCOUNT(wp)	(ALIST(wp)->al_ga.ga_len)
581 
582 /*
583  * A list used for saving values of "emsg_silent".  Used by ex_try() to save the
584  * value of "emsg_silent" if it was non-zero.  When this is done, the CSF_SILENT
585  * flag below is set.
586  */
587 
588 typedef struct eslist_elem eslist_T;
589 struct eslist_elem
590 {
591     int		saved_emsg_silent;	/* saved value of "emsg_silent" */
592     eslist_T	*next;			/* next element on the list */
593 };
594 
595 /*
596  * For conditional commands a stack is kept of nested conditionals.
597  * When cs_idx < 0, there is no conditional command.
598  */
599 #define CSTACK_LEN	50
600 
601 struct condstack
602 {
603     short	cs_flags[CSTACK_LEN];	/* CSF_ flags */
604     char	cs_pending[CSTACK_LEN];	/* CSTP_: what's pending in ":finally"*/
605     union {
606 	void	*csp_rv[CSTACK_LEN];	/* return typeval for pending return */
607 	void	*csp_ex[CSTACK_LEN];	/* exception for pending throw */
608     }		cs_pend;
609     void	*cs_forinfo[CSTACK_LEN]; /* info used by ":for" */
610     int		cs_line[CSTACK_LEN];	/* line nr of ":while"/":for" line */
611     int		cs_idx;			/* current entry, or -1 if none */
612     int		cs_looplevel;		/* nr of nested ":while"s and ":for"s */
613     int		cs_trylevel;		/* nr of nested ":try"s */
614     eslist_T	*cs_emsg_silent_list;	/* saved values of "emsg_silent" */
615     char	cs_lflags;		/* loop flags: CSL_ flags */
616 };
617 # define cs_rettv	cs_pend.csp_rv
618 # define cs_exception	cs_pend.csp_ex
619 
620 /* There is no CSF_IF, the lack of CSF_WHILE, CSF_FOR and CSF_TRY means ":if"
621  * was used. */
622 # define CSF_TRUE	0x0001	/* condition was TRUE */
623 # define CSF_ACTIVE	0x0002	/* current state is active */
624 # define CSF_ELSE	0x0004	/* ":else" has been passed */
625 # define CSF_WHILE	0x0008	/* is a ":while" */
626 # define CSF_FOR	0x0010	/* is a ":for" */
627 
628 # define CSF_TRY	0x0100	/* is a ":try" */
629 # define CSF_FINALLY	0x0200	/* ":finally" has been passed */
630 # define CSF_THROWN	0x0400	/* exception thrown to this try conditional */
631 # define CSF_CAUGHT	0x0800  /* exception caught by this try conditional */
632 # define CSF_SILENT	0x1000	/* "emsg_silent" reset by ":try" */
633 /* Note that CSF_ELSE is only used when CSF_TRY and CSF_WHILE are unset
634  * (an ":if"), and CSF_SILENT is only used when CSF_TRY is set. */
635 
636 /*
637  * What's pending for being reactivated at the ":endtry" of this try
638  * conditional:
639  */
640 # define CSTP_NONE	0	/* nothing pending in ":finally" clause */
641 # define CSTP_ERROR	1	/* an error is pending */
642 # define CSTP_INTERRUPT	2	/* an interrupt is pending */
643 # define CSTP_THROW	4	/* a throw is pending */
644 # define CSTP_BREAK	8	/* ":break" is pending */
645 # define CSTP_CONTINUE	16	/* ":continue" is pending */
646 # define CSTP_RETURN	24	/* ":return" is pending */
647 # define CSTP_FINISH	32	/* ":finish" is pending */
648 
649 /*
650  * Flags for the cs_lflags item in struct condstack.
651  */
652 # define CSL_HAD_LOOP	 1	/* just found ":while" or ":for" */
653 # define CSL_HAD_ENDLOOP 2	/* just found ":endwhile" or ":endfor" */
654 # define CSL_HAD_CONT	 4	/* just found ":continue" */
655 # define CSL_HAD_FINA	 8	/* just found ":finally" */
656 
657 /*
658  * A list of error messages that can be converted to an exception.  "throw_msg"
659  * is only set in the first element of the list.  Usually, it points to the
660  * original message stored in that element, but sometimes it points to a later
661  * message in the list.  See cause_errthrow() below.
662  */
663 struct msglist
664 {
665     char_u		*msg;		/* original message */
666     char_u		*throw_msg;	/* msg to throw: usually original one */
667     struct msglist	*next;		/* next of several messages in a row */
668 };
669 
670 /*
671  * Structure describing an exception.
672  * (don't use "struct exception", it's used by the math library).
673  */
674 typedef struct vim_exception except_T;
675 struct vim_exception
676 {
677     int			type;		/* exception type */
678     char_u		*value;		/* exception value */
679     struct msglist	*messages;	/* message(s) causing error exception */
680     char_u		*throw_name;	/* name of the throw point */
681     linenr_T		throw_lnum;	/* line number of the throw point */
682     except_T		*caught;	/* next exception on the caught stack */
683 };
684 
685 /*
686  * The exception types.
687  */
688 #define ET_USER		0	/* exception caused by ":throw" command */
689 #define ET_ERROR	1	/* error exception */
690 #define ET_INTERRUPT	2	/* interrupt exception triggered by Ctrl-C */
691 
692 /*
693  * Structure to save the error/interrupt/exception state between calls to
694  * enter_cleanup() and leave_cleanup().  Must be allocated as an automatic
695  * variable by the (common) caller of these functions.
696  */
697 typedef struct cleanup_stuff cleanup_T;
698 struct cleanup_stuff
699 {
700     int pending;		/* error/interrupt/exception state */
701     except_T *exception;	/* exception value */
702 };
703 
704 #ifdef FEAT_SYN_HL
705 /* struct passed to in_id_list() */
706 struct sp_syn
707 {
708     int		inc_tag;	/* ":syn include" unique tag */
709     short	id;		/* highlight group ID of item */
710     short	*cont_in_list;	/* cont.in group IDs, if non-zero */
711 };
712 
713 /*
714  * Each keyword has one keyentry, which is linked in a hash list.
715  */
716 typedef struct keyentry keyentry_T;
717 
718 struct keyentry
719 {
720     keyentry_T	*ke_next;	/* next entry with identical "keyword[]" */
721     struct sp_syn k_syn;	/* struct passed to in_id_list() */
722     short	*next_list;	/* ID list for next match (if non-zero) */
723     short	flags;		/* see syntax.c */
724     char_u	keyword[1];	/* actually longer */
725 };
726 
727 /*
728  * Struct used to store one state of the state stack.
729  */
730 typedef struct buf_state
731 {
732     int		    bs_idx;	 /* index of pattern */
733     long	    bs_flags;	 /* flags for pattern */
734     reg_extmatch_T *bs_extmatch; /* external matches from start pattern */
735 } bufstate_T;
736 
737 /*
738  * syn_state contains the syntax state stack for the start of one line.
739  * Used by b_sst_array[].
740  */
741 typedef struct syn_state synstate_T;
742 
743 struct syn_state
744 {
745     synstate_T	*sst_next;	/* next entry in used or free list */
746     linenr_T	sst_lnum;	/* line number for this state */
747     union
748     {
749 	bufstate_T	sst_stack[SST_FIX_STATES]; /* short state stack */
750 	garray_T	sst_ga;	/* growarray for long state stack */
751     } sst_union;
752     int		sst_next_flags;	/* flags for sst_next_list */
753     short	*sst_next_list;	/* "nextgroup" list in this state
754 				 * (this is a copy, don't free it! */
755     short	sst_stacksize;	/* number of states on the stack */
756     disptick_T	sst_tick;	/* tick when last displayed */
757     linenr_T	sst_change_lnum;/* when non-zero, change in this line
758 				 * may have made the state invalid */
759 };
760 #endif /* FEAT_SYN_HL */
761 
762 /*
763  * Structure shared between syntax.c, screen.c and gui_x11.c.
764  */
765 typedef struct attr_entry
766 {
767     short	    ae_attr;		/* HL_BOLD, etc. */
768     union
769     {
770 	struct
771 	{
772 	    char_u	    *start;	/* start escape sequence */
773 	    char_u	    *stop;	/* stop escape sequence */
774 	} term;
775 	struct
776 	{
777 	    char_u	    fg_color;	/* foreground color number */
778 	    char_u	    bg_color;	/* background color number */
779 	} cterm;
780 # ifdef FEAT_GUI
781 	struct
782 	{
783 	    guicolor_T	    fg_color;	/* foreground color handle */
784 	    guicolor_T	    bg_color;	/* background color handle */
785 	    guicolor_T	    sp_color;	/* special color handle */
786 	    GuiFont	    font;	/* font handle */
787 #  ifdef FEAT_XFONTSET
788 	    GuiFontset	    fontset;	/* fontset handle */
789 #  endif
790 	} gui;
791 # endif
792     } ae_u;
793 } attrentry_T;
794 
795 #ifdef USE_ICONV
796 # ifdef HAVE_ICONV_H
797 #  include <iconv.h>
798 # else
799 #  if defined(MACOS_X)
800 #   include <sys/errno.h>
801 #   define EILSEQ ENOENT /* MacOS X does not have EILSEQ */
802 typedef struct _iconv_t *iconv_t;
803 #  else
804 #   if defined(MACOS_CLASSIC)
805 typedef struct _iconv_t *iconv_t;
806 #    define EINVAL	22
807 #    define E2BIG	7
808 #    define ENOENT	2
809 #    define EFAULT	14
810 #    define EILSEQ	123
811 #   else
812 #    include <errno.h>
813 #   endif
814 #  endif
815 typedef void *iconv_t;
816 # endif
817 #endif
818 
819 /*
820  * Used for the typeahead buffer: typebuf.
821  */
822 typedef struct
823 {
824     char_u	*tb_buf;	/* buffer for typed characters */
825     char_u	*tb_noremap;	/* mapping flags for characters in tb_buf[] */
826     int		tb_buflen;	/* size of tb_buf[] */
827     int		tb_off;		/* current position in tb_buf[] */
828     int		tb_len;		/* number of valid bytes in tb_buf[] */
829     int		tb_maplen;	/* nr of mapped bytes in tb_buf[] */
830     int		tb_silent;	/* nr of silently mapped bytes in tb_buf[] */
831     int		tb_no_abbr_cnt; /* nr of bytes without abbrev. in tb_buf[] */
832     int		tb_change_cnt;	/* nr of time tb_buf was changed; never zero */
833 } typebuf_T;
834 
835 /* Struct to hold the saved typeahead for save_typeahead(). */
836 typedef struct
837 {
838     typebuf_T		save_typebuf;
839     int			typebuf_valid;	    /* TRUE when save_typebuf valid */
840     struct buffheader	save_stuffbuff;
841 #ifdef USE_INPUT_BUF
842     char_u		*save_inputbuf;
843 #endif
844 } tasave_T;
845 
846 /*
847  * Used for conversion of terminal I/O and script files.
848  */
849 typedef struct
850 {
851     int		vc_type;	/* zero or one of the CONV_ values */
852     int		vc_factor;	/* max. expansion factor */
853 # ifdef WIN3264
854     int		vc_cpfrom;	/* codepage to convert from (CONV_CODEPAGE) */
855     int		vc_cpto;	/* codepage to convert to (CONV_CODEPAGE) */
856 # endif
857 # ifdef USE_ICONV
858     iconv_t	vc_fd;		/* for CONV_ICONV */
859 # endif
860     int		vc_fail;	/* fail for invalid char, don't use '?' */
861 } vimconv_T;
862 
863 /*
864  * Structure used for reading from the viminfo file.
865  */
866 typedef struct
867 {
868     char_u	*vir_line;	/* text of the current line */
869     FILE	*vir_fd;	/* file descriptor */
870 #ifdef FEAT_MBYTE
871     vimconv_T	vir_conv;	/* encoding conversion */
872 #endif
873 } vir_T;
874 
875 #define CONV_NONE		0
876 #define CONV_TO_UTF8		1
877 #define CONV_9_TO_UTF8		2
878 #define CONV_TO_LATIN1		3
879 #define CONV_TO_LATIN9		4
880 #define CONV_ICONV		5
881 #ifdef WIN3264
882 # define CONV_CODEPAGE		10	/* codepage -> codepage */
883 #endif
884 #ifdef MACOS_X
885 # define CONV_MAC_LATIN1	20
886 # define CONV_LATIN1_MAC	21
887 # define CONV_MAC_UTF8		22
888 # define CONV_UTF8_MAC		23
889 #endif
890 
891 /*
892  * Structure used for mappings and abbreviations.
893  */
894 typedef struct mapblock mapblock_T;
895 struct mapblock
896 {
897     mapblock_T	*m_next;	/* next mapblock in list */
898     char_u	*m_keys;	/* mapped from */
899     int		m_keylen;	/* strlen(m_keys) */
900     char_u	*m_str;		/* mapped to */
901     int		m_mode;		/* valid mode */
902     int		m_noremap;	/* if non-zero no re-mapping for m_str */
903     char	m_silent;	/* <silent> used, don't echo commands */
904 #if 0  /* Not used yet */
905     scid_T	m_script_ID;	/* ID of script where map was defined,
906 				   used for s: variables and functions */
907 #endif
908 };
909 
910 /*
911  * Used for highlighting in the status line.
912  */
913 struct stl_hlrec
914 {
915     char_u	*start;
916     int		userhl;
917 };
918 
919 /* Item for a hashtable.  "hi_key" can be one of three values:
920  * NULL:	   Never been used
921  * HI_KEY_REMOVED: Entry was removed
922  * Otherwise:	   Used item, pointer to the actual key; this usually is
923  *		   inside the item, subtract an offset to locate the item.
924  *		   This reduces the size of hashitem by 1/3.
925  */
926 typedef struct hashitem_S
927 {
928     long_u	hi_hash;	/* cached hash number of hi_key */
929     char_u	*hi_key;
930 } hashitem_T;
931 
932 /* The address of "hash_removed" is used as a magic number for hi_key to
933  * indicate a removed item. */
934 #define HI_KEY_REMOVED &hash_removed
935 #define HASHITEM_EMPTY(hi) ((hi)->hi_key == NULL || (hi)->hi_key == &hash_removed)
936 
937 /* Initial size for a hashtable.  Our items are relatively small and growing
938  * is expensive, thus use 16 as a start.  Must be a power of 2. */
939 #define HT_INIT_SIZE 16
940 
941 typedef struct hashtable_S
942 {
943     long_u	ht_mask;	/* mask used for hash value (nr of items in
944 				 * array is "ht_mask" + 1) */
945     long_u	ht_used;	/* number of items used */
946     long_u	ht_filled;	/* number of items used + removed */
947     int		ht_locked;	/* counter for hash_lock() */
948     int		ht_error;	/* when set growing failed, can't add more
949 				   items before growing works */
950     hashitem_T	*ht_array;	/* points to the array, allocated when it's
951 				   not "ht_smallarray" */
952     hashitem_T	ht_smallarray[HT_INIT_SIZE];   /* initial array */
953 } hashtab_T;
954 
955 typedef long_u hash_T;		/* Type for hi_hash */
956 
957 
958 #if SIZEOF_INT <= 3		/* use long if int is smaller than 32 bits */
959 typedef long	varnumber_T;
960 #else
961 typedef int	varnumber_T;
962 #endif
963 
964 typedef struct listvar_S list_T;
965 typedef struct dictvar_S dict_T;
966 
967 /*
968  * Structure to hold an internal variable without a name.
969  */
970 typedef struct
971 {
972     char	v_type;	    /* see below: VAR_NUMBER, VAR_STRING, etc. */
973     char	v_lock;	    /* see below: VAR_LOCKED, VAR_FIXED */
974     union
975     {
976 	varnumber_T	v_number;	/* number value */
977 	char_u		*v_string;	/* string value (can be NULL!) */
978 	list_T		*v_list;	/* list value (can be NULL!) */
979 	dict_T		*v_dict;	/* dict value (can be NULL!) */
980     }		vval;
981 } typval_T;
982 
983 /* Values for "v_type". */
984 #define VAR_UNKNOWN 0
985 #define VAR_NUMBER  1	/* "v_number" is used */
986 #define VAR_STRING  2	/* "v_string" is used */
987 #define VAR_FUNC    3	/* "v_string" is function name */
988 #define VAR_LIST    4	/* "v_list" is used */
989 #define VAR_DICT    5	/* "v_dict" is used */
990 
991 /* Values for "v_lock". */
992 #define VAR_LOCKED  1	/* locked with lock(), can use unlock() */
993 #define VAR_FIXED   2	/* locked forever */
994 
995 /*
996  * Structure to hold an item of a list: an internal variable without a name.
997  */
998 typedef struct listitem_S listitem_T;
999 
1000 struct listitem_S
1001 {
1002     listitem_T	*li_next;	/* next item in list */
1003     listitem_T	*li_prev;	/* previous item in list */
1004     typval_T	li_tv;		/* type and value of the variable */
1005 };
1006 
1007 /*
1008  * Struct used by those that are using an item in a list.
1009  */
1010 typedef struct listwatch_S listwatch_T;
1011 
1012 struct listwatch_S
1013 {
1014     listitem_T		*lw_item;	/* item being watched */
1015     listwatch_T		*lw_next;	/* next watcher */
1016 };
1017 
1018 /*
1019  * Structure to hold info about a list.
1020  */
1021 struct listvar_S
1022 {
1023     listitem_T	*lv_first;	/* first item, NULL if none */
1024     listitem_T	*lv_last;	/* last item, NULL if none */
1025     int		lv_refcount;	/* reference count */
1026     int		lv_len;		/* number of items */
1027     listwatch_T	*lv_watch;	/* first watcher, NULL if none */
1028     int		lv_idx;		/* cached index of an item */
1029     listitem_T	*lv_idx_item;	/* when not NULL item at index "lv_idx" */
1030     int		lv_copyID;	/* ID used by deepcopy() */
1031     list_T	*lv_copylist;	/* copied list used by deepcopy() */
1032     char	lv_lock;	/* zero, VAR_LOCKED, VAR_FIXED */
1033     list_T	*lv_used_next;	/* next list in used dicts list */
1034     list_T	*lv_used_prev;	/* previous list in used lists list */
1035 };
1036 
1037 /*
1038  * Structure to hold an item of a Dictionary.
1039  * Also used for a variable.
1040  * The key is copied into "di_key" to avoid an extra alloc/free for it.
1041  */
1042 struct dictitem_S
1043 {
1044     typval_T	di_tv;		/* type and value of the variable */
1045     char_u	di_flags;	/* flags (only used for variable) */
1046     char_u	di_key[1];	/* key (actually longer!) */
1047 };
1048 
1049 typedef struct dictitem_S dictitem_T;
1050 
1051 #define DI_FLAGS_RO	1 /* "di_flags" value: read-only variable */
1052 #define DI_FLAGS_RO_SBX 2 /* "di_flags" value: read-only in the sandbox */
1053 #define DI_FLAGS_FIX	4 /* "di_flags" value: fixed variable, not allocated */
1054 #define DI_FLAGS_LOCK	8 /* "di_flags" value: locked variable */
1055 
1056 /*
1057  * Structure to hold info about a Dictionary.
1058  */
1059 struct dictvar_S
1060 {
1061     int		dv_refcount;	/* reference count */
1062     hashtab_T	dv_hashtab;	/* hashtab that refers to the items */
1063     int		dv_copyID;	/* ID used by deepcopy() */
1064     dict_T	*dv_copydict;	/* copied dict used by deepcopy() */
1065     char	dv_lock;	/* zero, VAR_LOCKED, VAR_FIXED */
1066     dict_T	*dv_used_next;	/* next dict in used dicts list */
1067     dict_T	*dv_used_prev;	/* previous dict in used dicts list */
1068 };
1069 
1070 /* values for b_syn_spell: what to do with toplevel text */
1071 #define SYNSPL_DEFAULT	0	/* spell check if @Spell not defined */
1072 #define SYNSPL_TOP	1	/* spell check toplevel text */
1073 #define SYNSPL_NOTOP	2	/* don't spell check toplevel text */
1074 
1075 
1076 /*
1077  * buffer: structure that holds information about one file
1078  *
1079  * Several windows can share a single Buffer
1080  * A buffer is unallocated if there is no memfile for it.
1081  * A buffer is new if the associated file has never been loaded yet.
1082  */
1083 
1084 typedef struct file_buffer buf_T;
1085 
1086 struct file_buffer
1087 {
1088     memline_T	b_ml;		/* associated memline (also contains line
1089 				   count) */
1090 
1091     buf_T	*b_next;	/* links in list of buffers */
1092     buf_T	*b_prev;
1093 
1094     int		b_nwindows;	/* nr of windows open on this buffer */
1095 
1096     int		b_flags;	/* various BF_ flags */
1097 
1098     /*
1099      * b_ffname has the full path of the file (NULL for no name).
1100      * b_sfname is the name as the user typed it (or NULL).
1101      * b_fname is the same as b_sfname, unless ":cd" has been done,
1102      *		then it is the same as b_ffname (NULL for no name).
1103      */
1104     char_u	*b_ffname;	/* full path file name */
1105     char_u	*b_sfname;	/* short file name */
1106     char_u	*b_fname;	/* current file name */
1107 
1108 #ifdef UNIX
1109     int		b_dev;		/* device number (-1 if not set) */
1110     ino_t	b_ino;		/* inode number */
1111 #endif
1112 #ifdef FEAT_CW_EDITOR
1113     FSSpec	b_FSSpec;	/* MacOS File Identification */
1114 #endif
1115 #ifdef VMS
1116     char	 b_fab_rfm;	/* Record format    */
1117     char	 b_fab_rat;	/* Record attribute */
1118     unsigned int b_fab_mrs;	/* Max record size  */
1119 #endif
1120 #ifdef FEAT_SNIFF
1121     int		b_sniff;	/* file was loaded through Sniff */
1122 #endif
1123 
1124     int		b_fnum;		/* buffer number for this file. */
1125 
1126     int		b_changed;	/* 'modified': Set to TRUE if something in the
1127 				   file has been changed and not written out. */
1128     int		b_changedtick;	/* incremented for each change, also for undo */
1129 
1130     int		b_saving;	/* Set to TRUE if we are in the middle of
1131 				   saving the buffer. */
1132 
1133     /*
1134      * Changes to a buffer require updating of the display.  To minimize the
1135      * work, remember changes made and update everything at once.
1136      */
1137     int		b_mod_set;	/* TRUE when there are changes since the last
1138 				   time the display was updated */
1139     linenr_T	b_mod_top;	/* topmost lnum that was changed */
1140     linenr_T	b_mod_bot;	/* lnum below last changed line, AFTER the
1141 				   change */
1142     long	b_mod_xlines;	/* number of extra buffer lines inserted;
1143 				   negative when lines were deleted */
1144 
1145     wininfo_T	*b_wininfo;	/* list of last used info for each window */
1146 
1147     long	b_mtime;	/* last change time of original file */
1148     long	b_mtime_read;	/* last change time when reading */
1149     size_t	b_orig_size;	/* size of original file in bytes */
1150     int		b_orig_mode;	/* mode of original file */
1151 
1152     pos_T	b_namedm[NMARKS]; /* current named marks (mark.c) */
1153 
1154 #ifdef FEAT_VISUAL
1155     /* These variables are set when VIsual_active becomes FALSE */
1156     pos_T	b_visual_start;	/* start pos of last VIsual */
1157     pos_T	b_visual_end;	/* end position of last VIsual */
1158     int		b_visual_mode;	/* VIsual_mode of last VIsual */
1159 # ifdef FEAT_EVAL
1160     int		b_visual_mode_eval;  /* b_visual_mode for visualmode() */
1161 # endif
1162     colnr_T	b_visual_curswant;   /* MAXCOL from w_curswant */
1163 #endif
1164 
1165     pos_T	b_last_cursor;	/* cursor position when last unloading this
1166 				   buffer */
1167     pos_T	b_last_insert;	/* where Insert mode was left */
1168     pos_T	b_last_change;	/* position of last change: '. mark */
1169 
1170 #ifdef FEAT_JUMPLIST
1171     /*
1172      * the changelist contains old change positions
1173      */
1174     pos_T	b_changelist[JUMPLISTSIZE];
1175     int		b_changelistlen;	/* number of active entries */
1176     int		b_new_change;		/* set by u_savecommon() */
1177 #endif
1178 
1179     /*
1180      * Character table, only used in charset.c for 'iskeyword'
1181      * 32 bytes of 8 bits: 1 bit per character 0-255.
1182      */
1183     char_u	b_chartab[32];
1184 
1185 #ifdef FEAT_LOCALMAP
1186     /* Table used for mappings local to a buffer. */
1187     mapblock_T	*(b_maphash[256]);
1188 
1189     /* First abbreviation local to a buffer. */
1190     mapblock_T	*b_first_abbr;
1191 #endif
1192 #ifdef FEAT_USR_CMDS
1193     /* User commands local to the buffer. */
1194     garray_T	b_ucmds;
1195 #endif
1196     /*
1197      * start and end of an operator, also used for '[ and ']
1198      */
1199     pos_T	b_op_start;
1200     pos_T	b_op_end;
1201 
1202 #ifdef FEAT_VIMINFO
1203     int		b_marks_read;	/* Have we read viminfo marks yet? */
1204 #endif
1205 
1206     /*
1207      * The following only used in undo.c.
1208      */
1209     u_header_T	*b_u_oldhead;	/* pointer to oldest header */
1210     u_header_T	*b_u_newhead;	/* pointer to newest header */
1211     u_header_T	*b_u_curhead;	/* pointer to current header */
1212     int		b_u_numhead;	/* current number of headers */
1213     int		b_u_synced;	/* entry lists are synced */
1214 
1215     /*
1216      * variables for "U" command in undo.c
1217      */
1218     char_u	*b_u_line_ptr;	/* saved line for "U" command */
1219     linenr_T	b_u_line_lnum;	/* line number of line in u_line */
1220     colnr_T	b_u_line_colnr;	/* optional column number */
1221 
1222     /*
1223      * The following only used in undo.c
1224      */
1225     mblock_T	b_block_head;	/* head of allocated memory block list */
1226     minfo_T	*b_m_search;	/* pointer to chunk before previously
1227 				   allocated/freed chunk */
1228     mblock_T	*b_mb_current;	/* block where m_search points in */
1229 
1230 #ifdef FEAT_INS_EXPAND
1231     int		b_scanned;	/* ^N/^P have scanned this buffer */
1232 #endif
1233 
1234     /* flags for use of ":lmap" and IM control */
1235     long	b_p_iminsert;	/* input mode for insert */
1236     long	b_p_imsearch;	/* input mode for search */
1237 #define B_IMODE_USE_INSERT -1	/*	Use b_p_iminsert value for search */
1238 #define B_IMODE_NONE 0		/*	Input via none */
1239 #define B_IMODE_LMAP 1		/*	Input via langmap */
1240 #ifndef USE_IM_CONTROL
1241 # define B_IMODE_LAST 1
1242 #else
1243 # define B_IMODE_IM 2		/*	Input via input method */
1244 # define B_IMODE_LAST 2
1245 #endif
1246 
1247 #ifdef FEAT_KEYMAP
1248     short	b_kmap_state;	/* using "lmap" mappings */
1249 # define KEYMAP_INIT	1	/* 'keymap' was set, call keymap_init() */
1250 # define KEYMAP_LOADED	2	/* 'keymap' mappings have been loaded */
1251     garray_T	b_kmap_ga;	/* the keymap table */
1252 #endif
1253 
1254     /*
1255      * Options local to a buffer.
1256      * They are here because their value depends on the type of file
1257      * or contents of the file being edited.
1258      */
1259     int		b_p_initialized;	/* set when options initialized */
1260 
1261     int		b_p_ai;		/* 'autoindent' */
1262     int		b_p_ai_nopaste;	/* b_p_ai saved for paste mode */
1263     int		b_p_ci;		/* 'copyindent' */
1264     int		b_p_bin;	/* 'binary' */
1265 #ifdef FEAT_MBYTE
1266     int		b_p_bomb;	/* 'bomb' */
1267 #endif
1268 #if defined(FEAT_QUICKFIX)
1269     char_u	*b_p_bh;	/* 'bufhidden' */
1270     char_u	*b_p_bt;	/* 'buftype' */
1271 #endif
1272     int		b_p_bl;		/* 'buflisted' */
1273 #ifdef FEAT_CINDENT
1274     int		b_p_cin;	/* 'cindent' */
1275     char_u	*b_p_cino;	/* 'cinoptions' */
1276     char_u	*b_p_cink;	/* 'cinkeys' */
1277 #endif
1278 #if defined(FEAT_CINDENT) || defined(FEAT_SMARTINDENT)
1279     char_u	*b_p_cinw;	/* 'cinwords' */
1280 #endif
1281 #ifdef FEAT_COMMENTS
1282     char_u	*b_p_com;	/* 'comments' */
1283 #endif
1284 #ifdef FEAT_FOLDING
1285     char_u	*b_p_cms;	/* 'commentstring' */
1286 #endif
1287 #ifdef FEAT_INS_EXPAND
1288     char_u	*b_p_cpt;	/* 'complete' */
1289 #endif
1290 #ifdef FEAT_COMPL_FUNC
1291     char_u	*b_p_cfu;	/* 'completefunc' */
1292 #endif
1293     int		b_p_eol;	/* 'endofline' */
1294     int		b_p_et;		/* 'expandtab' */
1295     int		b_p_et_nobin;	/* b_p_et saved for binary mode */
1296 #ifdef FEAT_MBYTE
1297     char_u	*b_p_fenc;	/* 'fileencoding' */
1298 #endif
1299     char_u	*b_p_ff;	/* 'fileformat' */
1300 #ifdef FEAT_AUTOCMD
1301     char_u	*b_p_ft;	/* 'filetype' */
1302 #endif
1303     char_u	*b_p_fo;	/* 'formatoptions' */
1304     char_u	*b_p_flp;	/* 'formatlistpat' */
1305     int		b_p_inf;	/* 'infercase' */
1306     char_u	*b_p_isk;	/* 'iskeyword' */
1307 #ifdef FEAT_FIND_ID
1308     char_u	*b_p_def;	/* 'define' local value */
1309     char_u	*b_p_inc;	/* 'include' */
1310 # ifdef FEAT_EVAL
1311     char_u	*b_p_inex;	/* 'includeexpr' */
1312 # endif
1313 #endif
1314 #if defined(FEAT_CINDENT) && defined(FEAT_EVAL)
1315     char_u	*b_p_inde;	/* 'indentexpr' */
1316     char_u	*b_p_indk;	/* 'indentkeys' */
1317 #endif
1318 #ifdef FEAT_CRYPT
1319     char_u	*b_p_key;	/* 'key' */
1320 #endif
1321     char_u	*b_p_kp;	/* 'keywordprg' */
1322 #ifdef FEAT_LISP
1323     int		b_p_lisp;	/* 'lisp' */
1324 #endif
1325     char_u	*b_p_mps;	/* 'matchpairs' */
1326     int		b_p_ml;		/* 'modeline' */
1327     int		b_p_ml_nobin;	/* b_p_ml saved for binary mode */
1328     int		b_p_ma;		/* 'modifiable' */
1329     char_u	*b_p_nf;	/* 'nrformats' */
1330 #ifdef FEAT_OSFILETYPE
1331     char_u	*b_p_oft;	/* 'osfiletype' */
1332 #endif
1333     int		b_p_pi;		/* 'preserveindent' */
1334 #ifdef FEAT_TEXTOBJ
1335     char_u	*b_p_qe;	/* 'quoteescape' */
1336 #endif
1337     int		b_p_ro;		/* 'readonly' */
1338     long	b_p_sw;		/* 'shiftwidth' */
1339 #ifndef SHORT_FNAME
1340     int		b_p_sn;		/* 'shortname' */
1341 #endif
1342 #ifdef FEAT_SMARTINDENT
1343     int		b_p_si;		/* 'smartindent' */
1344 #endif
1345     long	b_p_sts;	/* 'softtabstop' */
1346     long	b_p_sts_nopaste; /* b_p_sts saved for paste mode */
1347 #ifdef FEAT_SEARCHPATH
1348     char_u	*b_p_sua;	/* 'suffixesadd' */
1349 #endif
1350     int		b_p_swf;	/* 'swapfile' */
1351 #ifdef FEAT_SYN_HL
1352     long	b_p_smc;	/* 'synmaxcol' */
1353     char_u	*b_p_syn;	/* 'syntax' */
1354     char_u	*b_p_spc;	/* 'spellcapcheck' */
1355     regprog_T	*b_cap_prog;	/* program for 'spellcapcheck' */
1356     char_u	*b_p_spf;	/* 'spellfile' */
1357     char_u	*b_p_spl;	/* 'spelllang' */
1358 #endif
1359     long	b_p_ts;		/* 'tabstop' */
1360     int		b_p_tx;		/* 'textmode' */
1361     long	b_p_tw;		/* 'textwidth' */
1362     long	b_p_tw_nobin;	/* b_p_tw saved for binary mode */
1363     long	b_p_tw_nopaste;	/* b_p_tw saved for paste mode */
1364     long	b_p_wm;		/* 'wrapmargin' */
1365     long	b_p_wm_nobin;	/* b_p_wm saved for binary mode */
1366     long	b_p_wm_nopaste;	/* b_p_wm saved for paste mode */
1367 #ifdef FEAT_KEYMAP
1368     char_u	*b_p_keymap;	/* 'keymap' */
1369 #endif
1370 
1371     /* local values for options which are normally global */
1372 #ifdef FEAT_QUICKFIX
1373     char_u	*b_p_gp;	/* 'grepprg' local value */
1374     char_u	*b_p_mp;	/* 'makeprg' local value */
1375     char_u	*b_p_efm;	/* 'errorformat' local value */
1376 #endif
1377     char_u	*b_p_ep;	/* 'equalprg' local value */
1378     char_u	*b_p_path;	/* 'path' local value */
1379     int		b_p_ar;		/* 'autoread' local value */
1380     char_u	*b_p_tags;	/* 'tags' local value */
1381 #ifdef FEAT_INS_EXPAND
1382     char_u	*b_p_dict;	/* 'dictionary' local value */
1383     char_u	*b_p_tsr;	/* 'thesaurus' local value */
1384 #endif
1385 
1386     /* end of buffer options */
1387 
1388     int		b_start_eol;	/* last line had eol when it was read */
1389     int		b_start_ffc;	/* first char of 'ff' when edit started */
1390 #ifdef FEAT_MBYTE
1391     char_u	*b_start_fenc;	/* 'fileencoding' when edit started or NULL */
1392 #endif
1393 
1394 #ifdef FEAT_EVAL
1395     dictitem_T	b_bufvar;	/* variable for "b:" Dictionary */
1396     dict_T	b_vars;		/* internal variables, local to buffer */
1397 #endif
1398 
1399     /* When a buffer is created, it starts without a swap file.  b_may_swap is
1400      * then set to indicate that a swap file may be opened later.  It is reset
1401      * if a swap file could not be opened.
1402      */
1403     int		b_may_swap;
1404     int		b_did_warn;	/* Set to 1 if user has been warned on first
1405 				   change of a read-only file */
1406     int		b_help;		/* buffer for help file (when set b_p_bt is
1407 				   "help") */
1408 
1409 #ifndef SHORT_FNAME
1410     int		b_shortname;	/* this file has an 8.3 file name */
1411 #endif
1412 
1413 #ifdef FEAT_MZSCHEME
1414     void	*mzscheme_ref;	/* The MzScheme reference to this buffer */
1415 #endif
1416 
1417 #ifdef FEAT_PERL
1418     void	*perl_private;
1419 #endif
1420 
1421 #ifdef FEAT_PYTHON
1422     void	*python_ref;	/* The Python reference to this buffer */
1423 #endif
1424 
1425 #ifdef FEAT_TCL
1426     void	*tcl_ref;
1427 #endif
1428 
1429 #ifdef FEAT_RUBY
1430     void	*ruby_ref;
1431 #endif
1432 
1433 #ifdef FEAT_SYN_HL
1434     hashtab_T	b_keywtab;		/* syntax keywords hash table */
1435     hashtab_T	b_keywtab_ic;		/* idem, ignore case */
1436     int		b_syn_ic;		/* ignore case for :syn cmds */
1437     int		b_syn_spell;		/* SYNSPL_ values */
1438     garray_T	b_syn_patterns;		/* table for syntax patterns */
1439     garray_T	b_syn_clusters;		/* table for syntax clusters */
1440     int		b_spell_cluster_id;	/* @Spell cluster ID or 0 */
1441     int		b_nospell_cluster_id;	/* @NoSpell cluster ID or 0 */
1442     int		b_syn_containedin;	/* TRUE when there is an item with a
1443 					   "containedin" argument */
1444     int		b_syn_sync_flags;	/* flags about how to sync */
1445     short	b_syn_sync_id;		/* group to sync on */
1446     long	b_syn_sync_minlines;	/* minimal sync lines offset */
1447     long	b_syn_sync_maxlines;	/* maximal sync lines offset */
1448     long	b_syn_sync_linebreaks;	/* offset for multi-line pattern */
1449     char_u	*b_syn_linecont_pat;	/* line continuation pattern */
1450     regprog_T	*b_syn_linecont_prog;	/* line continuation program */
1451     int		b_syn_linecont_ic;	/* ignore-case flag for above */
1452     int		b_syn_topgrp;		/* for ":syntax include" */
1453 # ifdef FEAT_FOLDING
1454     int		b_syn_folditems;	/* number of patterns with the HL_FOLD
1455 					   flag set */
1456 # endif
1457 /*
1458  * b_sst_array[] contains the state stack for a number of lines, for the start
1459  * of that line (col == 0).  This avoids having to recompute the syntax state
1460  * too often.
1461  * b_sst_array[] is allocated to hold the state for all displayed lines, and
1462  * states for 1 out of about 20 other lines.
1463  * b_sst_array		pointer to an array of synstate_T
1464  * b_sst_len		number of entries in b_sst_array[]
1465  * b_sst_first		pointer to first used entry in b_sst_array[] or NULL
1466  * b_sst_firstfree	pointer to first free entry in b_sst_array[] or NULL
1467  * b_sst_freecount	number of free entries in b_sst_array[]
1468  * b_sst_check_lnum	entries after this lnum need to be checked for
1469  *			validity (MAXLNUM means no check needed)
1470  */
1471     synstate_T	*b_sst_array;
1472     int		b_sst_len;
1473     synstate_T	*b_sst_first;
1474     synstate_T	*b_sst_firstfree;
1475     int		b_sst_freecount;
1476     linenr_T	b_sst_check_lnum;
1477     short_u	b_sst_lasttick;	/* last display tick */
1478 
1479     /* for spell checking */
1480     garray_T	b_langp;	/* list of pointers to slang_T, see spell.c */
1481     char_u	b_spell_ismw[256];/* flags: is midword char */
1482 # ifdef FEAT_MBYTE
1483     char_u	*b_spell_ismw_mb; /* multi-byte midword chars */
1484 # endif
1485 #endif /* FEAT_SYN_HL */
1486 
1487 #ifdef FEAT_SIGNS
1488     signlist_T	*b_signlist;	/* list of signs to draw */
1489 #endif
1490 
1491 #ifdef FEAT_NETBEANS_INTG
1492     int		b_netbeans_file;    /* TRUE when buffer is owned by NetBeans */
1493     int		b_was_netbeans_file;/* TRUE if b_netbeans_file was once set */
1494 #endif
1495 
1496 };
1497 
1498 /*
1499  * Structure to cache info for displayed lines in w_lines[].
1500  * Each logical line has one entry.
1501  * The entry tells how the logical line is currently displayed in the window.
1502  * This is updated when displaying the window.
1503  * When the display is changed (e.g., when clearing the screen) w_lines_valid
1504  * is changed to exclude invalid entries.
1505  * When making changes to the buffer, wl_valid is reset to indicate wl_size
1506  * may not reflect what is actually in the buffer.  When wl_valid is FALSE,
1507  * the entries can only be used to count the number of displayed lines used.
1508  * wl_lnum and wl_lastlnum are invalid too.
1509  */
1510 typedef struct w_line
1511 {
1512     linenr_T	wl_lnum;	/* buffer line number for logical line */
1513     short_u	wl_size;	/* height in screen lines */
1514     char	wl_valid;	/* TRUE values are valid for text in buffer */
1515 #ifdef FEAT_FOLDING
1516     char	wl_folded;	/* TRUE when this is a range of folded lines */
1517     linenr_T	wl_lastlnum;	/* last buffer line number for logical line */
1518 #endif
1519 } wline_T;
1520 
1521 /*
1522  * Windows are kept in a tree of frames.  Each frame has a column (FR_COL)
1523  * or row (FR_ROW) layout or is a leaf, which has a window.
1524  */
1525 struct frame
1526 {
1527     char	fr_layout;	/* FR_LEAF, FR_COL or FR_ROW */
1528 #ifdef FEAT_VERTSPLIT
1529     int		fr_width;
1530 #endif
1531     int		fr_height;
1532     int		fr_newheight;	/* new height used in win_equal_rec() */
1533     frame_T	*fr_parent;	/* containing frame or NULL */
1534     frame_T	*fr_next;	/* frame right or below in same parent, NULL
1535 				   for first */
1536     frame_T	*fr_prev;	/* frame left or above in same parent, NULL
1537 				   for last */
1538     /* fr_child and fr_win are mutually exclusive */
1539     frame_T	*fr_child;	/* first contained frame */
1540     win_T	*fr_win;	/* window that fills this frame */
1541 };
1542 
1543 #define FR_LEAF	0	/* frame is a leaf */
1544 #define FR_ROW	1	/* frame with a row of windows */
1545 #define FR_COL	2	/* frame with a column of windows */
1546 
1547 /*
1548  * Structure which contains all information that belongs to a window
1549  *
1550  * All row numbers are relative to the start of the window, except w_winrow.
1551  */
1552 struct window
1553 {
1554     buf_T	*w_buffer;	    /* buffer we are a window into (used
1555 				       often, keep it the first item!) */
1556 
1557 #ifdef FEAT_WINDOWS
1558     win_T	*w_prev;	    /* link to previous window */
1559     win_T	*w_next;	    /* link to next window */
1560 #endif
1561 
1562     frame_T	*w_frame;	    /* frame containing this window */
1563 
1564     pos_T	w_cursor;	    /* cursor position in buffer */
1565 
1566     colnr_T	w_curswant;	    /* The column we'd like to be at.  This is
1567 				       used to try to stay in the same column
1568 				       for up/down cursor motions. */
1569 
1570     int		w_set_curswant;	    /* If set, then update w_curswant the next
1571 				       time through cursupdate() to the
1572 				       current virtual column */
1573 
1574 #ifdef FEAT_VISUAL
1575     /*
1576      * the next six are used to update the visual part
1577      */
1578     char	w_old_visual_mode;  /* last known VIsual_mode */
1579     linenr_T	w_old_cursor_lnum;  /* last known end of visual part */
1580     colnr_T	w_old_cursor_fcol;  /* first column for block visual part */
1581     colnr_T	w_old_cursor_lcol;  /* last column for block visual part */
1582     linenr_T	w_old_visual_lnum;  /* last known start of visual part */
1583     colnr_T	w_old_visual_col;   /* last known start of visual part */
1584     colnr_T	w_old_curswant;	    /* last known value of Curswant */
1585 #endif
1586 
1587     /*
1588      * The next three specify the offsets for displaying the buffer:
1589      */
1590     linenr_T	w_topline;	    /* buffer line number of the line at the
1591 				       top of the window */
1592 #ifdef FEAT_DIFF
1593     int		w_topfill;	    /* number of filler lines above w_topline */
1594     int		w_old_topfill;	    /* w_topfill at last redraw */
1595     int		w_botfill;	    /* TRUE when filler lines are actually
1596 				       below w_topline (at end of file) */
1597     int		w_old_botfill;	    /* w_botfill at last redraw */
1598 #endif
1599     colnr_T	w_leftcol;	    /* window column number of the left most
1600 				       character in the window; used when
1601 				       'wrap' is off */
1602     colnr_T	w_skipcol;	    /* starting column when a single line
1603 				       doesn't fit in the window */
1604 
1605     /*
1606      * Layout of the window in the screen.
1607      * May need to add "msg_scrolled" to "w_winrow" in rare situations.
1608      */
1609 #ifdef FEAT_WINDOWS
1610     int		w_winrow;	    /* first row of window in screen */
1611 #endif
1612     int		w_height;	    /* number of rows in window, excluding
1613 				       status/command line(s) */
1614 #ifdef FEAT_WINDOWS
1615     int		w_status_height;    /* number of status lines (0 or 1) */
1616 #endif
1617 #ifdef FEAT_VERTSPLIT
1618     int		w_wincol;	    /* Leftmost column of window in screen.
1619 				       use W_WINCOL() */
1620     int		w_width;	    /* Width of window, excluding separation.
1621 				       use W_WIDTH() */
1622     int		w_vsep_width;	    /* Number of separator columns (0 or 1).
1623 				       use W_VSEP_WIDTH() */
1624 #endif
1625 
1626     /*
1627      * === start of cached values ====
1628      */
1629     /*
1630      * Recomputing is minimized by storing the result of computations.
1631      * Use functions in screen.c to check if they are valid and to update.
1632      * w_valid is a bitfield of flags, which indicate if specific values are
1633      * valid or need to be recomputed.	See screen.c for values.
1634      */
1635     int		w_valid;
1636     pos_T	w_valid_cursor;	    /* last known position of w_cursor, used
1637 				       to adjust w_valid */
1638     colnr_T	w_valid_leftcol;    /* last known w_leftcol */
1639 
1640     /*
1641      * w_cline_height is the number of physical lines taken by the buffer line
1642      * that the cursor is on.  We use this to avoid extra calls to plines().
1643      */
1644     int		w_cline_height;	    /* current size of cursor line */
1645 #ifdef FEAT_FOLDING
1646     int		w_cline_folded;	    /* cursor line is folded */
1647 #endif
1648 
1649     int		w_cline_row;	    /* starting row of the cursor line */
1650 
1651     colnr_T	w_virtcol;	    /* column number of the cursor in the
1652 				       buffer line, as opposed to the column
1653 				       number we're at on the screen.  This
1654 				       makes a difference on lines which span
1655 				       more than one screen line or when
1656 				       w_leftcol is non-zero */
1657 
1658     /*
1659      * w_wrow and w_wcol specify the cursor position in the window.
1660      * This is related to positions in the window, not in the display or
1661      * buffer, thus w_wrow is relative to w_winrow.
1662      */
1663     int		w_wrow, w_wcol;	    /* cursor position in window */
1664 
1665     linenr_T	w_botline;	    /* number of the line below the bottom of
1666 				       the screen */
1667     int		w_empty_rows;	    /* number of ~ rows in window */
1668 #ifdef FEAT_DIFF
1669     int		w_filler_rows;	    /* number of filler rows at the end of the
1670 				       window */
1671 #endif
1672 
1673     /*
1674      * Info about the lines currently in the window is remembered to avoid
1675      * recomputing it every time.  The allocated size of w_lines[] is Rows.
1676      * Only the w_lines_valid entries are actually valid.
1677      * When the display is up-to-date w_lines[0].wl_lnum is equal to w_topline
1678      * and w_lines[w_lines_valid - 1].wl_lnum is equal to w_botline.
1679      * Between changing text and updating the display w_lines[] represents
1680      * what is currently displayed.  wl_valid is reset to indicated this.
1681      * This is used for efficient redrawing.
1682      */
1683     int		w_lines_valid;	    /* number of valid entries */
1684     wline_T	*w_lines;
1685 
1686 #ifdef FEAT_FOLDING
1687     garray_T	w_folds;	    /* array of nested folds */
1688     char	w_fold_manual;	    /* when TRUE: some folds are opened/closed
1689 				       manually */
1690     char	w_foldinvalid;	    /* when TRUE: folding needs to be
1691 				       recomputed */
1692 #endif
1693 #ifdef FEAT_LINEBREAK
1694     int		w_nrwidth;	    /* width of 'number' column being used */
1695 #endif
1696 
1697     /*
1698      * === end of cached values ===
1699      */
1700 
1701     int		w_redr_type;	    /* type of redraw to be performed on win */
1702     int		w_upd_rows;	    /* number of window lines to update when
1703 				       w_redr_type is REDRAW_TOP */
1704     linenr_T	w_redraw_top;	    /* when != 0: first line needing redraw */
1705     linenr_T	w_redraw_bot;	    /* when != 0: last line needing redraw */
1706 #ifdef FEAT_WINDOWS
1707     int		w_redr_status;	    /* if TRUE status line must be redrawn */
1708 #endif
1709 
1710 #ifdef FEAT_CMDL_INFO
1711     /* remember what is shown in the ruler for this window (if 'ruler' set) */
1712     pos_T	w_ru_cursor;	    /* cursor position shown in ruler */
1713     colnr_T	w_ru_virtcol;	    /* virtcol shown in ruler */
1714     linenr_T	w_ru_topline;	    /* topline shown in ruler */
1715     linenr_T	w_ru_line_count;    /* line count used for ruler */
1716 # ifdef FEAT_DIFF
1717     int		w_ru_topfill;	    /* topfill shown in ruler */
1718 # endif
1719     char	w_ru_empty;	    /* TRUE if ruler shows 0-1 (empty line) */
1720 #endif
1721 
1722     int		w_alt_fnum;	    /* alternate file (for # and CTRL-^) */
1723 
1724 #ifdef FEAT_WINDOWS
1725     alist_T	*w_alist;	    /* pointer to arglist for this window */
1726 #endif
1727     int		w_arg_idx;	    /* current index in argument list (can be
1728 				       out of range!) */
1729     int		w_arg_idx_invalid;  /* editing another file than w_arg_idx */
1730 
1731     char_u	*w_localdir;	    /* absolute path of local directory or
1732 				       NULL */
1733     /*
1734      * Options local to a window.
1735      * They are local because they influence the layout of the window or
1736      * depend on the window layout.
1737      * There are two values: w_onebuf_opt is local to the buffer currently in
1738      * this window, w_allbuf_opt is for all buffers in this window.
1739      */
1740     winopt_T	w_onebuf_opt;
1741     winopt_T	w_allbuf_opt;
1742 
1743     /* transform a pointer to a "onebuf" option into a "allbuf" option */
1744 #define GLOBAL_WO(p)	((char *)p + sizeof(winopt_T))
1745 
1746 #ifdef FEAT_SCROLLBIND
1747     long	w_scbind_pos;
1748 #endif
1749 
1750 #ifdef FEAT_EVAL
1751     dictitem_T	w_winvar;	/* variable for "w:" Dictionary */
1752     dict_T	w_vars;		/* internal variables, local to window */
1753 #endif
1754 
1755 #if defined(FEAT_RIGHTLEFT) && defined(FEAT_FKMAP)
1756     int		w_farsi;	/* for the window dependent Farsi functions */
1757 #endif
1758 
1759     /*
1760      * The w_prev_pcmark field is used to check whether we really did jump to
1761      * a new line after setting the w_pcmark.  If not, then we revert to
1762      * using the previous w_pcmark.
1763      */
1764     pos_T	w_pcmark;	/* previous context mark */
1765     pos_T	w_prev_pcmark;	/* previous w_pcmark */
1766 
1767 #ifdef FEAT_JUMPLIST
1768     /*
1769      * the jumplist contains old cursor positions
1770      */
1771     xfmark_T	w_jumplist[JUMPLISTSIZE];
1772     int		w_jumplistlen;		/* number of active entries */
1773     int		w_jumplistidx;		/* current position */
1774 
1775     int		w_changelistidx;	/* current position in b_changelist */
1776 #endif
1777 
1778 #ifdef FEAT_SEARCH_EXTRA
1779     regmmatch_T	w_match;	/* regexp program for ":match" */
1780     int		w_match_id;	/* highlight ID for ":match" */
1781 #endif
1782 
1783     /*
1784      * the tagstack grows from 0 upwards:
1785      * entry 0: older
1786      * entry 1: newer
1787      * entry 2: newest
1788      */
1789     taggy_T	w_tagstack[TAGSTACKSIZE];	/* the tag stack */
1790     int		w_tagstackidx;		/* idx just below activ entry */
1791     int		w_tagstacklen;		/* number of tags on stack */
1792 
1793     /*
1794      * w_fraction is the fractional row of the cursor within the window, from
1795      * 0 at the top row to FRACTION_MULT at the last row.
1796      * w_prev_fraction_row was the actual cursor row when w_fraction was last
1797      * calculated.
1798      */
1799     int		w_fraction;
1800     int		w_prev_fraction_row;
1801 
1802 #ifdef FEAT_GUI
1803     scrollbar_T	w_scrollbars[2];	/* vert. Scrollbars for this window */
1804 #endif
1805 #ifdef FEAT_LINEBREAK
1806     linenr_T	w_nrwidth_line_count;	/* line count when ml_nrwidth_width
1807 					 * was computed. */
1808     int		w_nrwidth_width;	/* nr of chars to print line count. */
1809 #endif
1810 
1811 
1812 #ifdef FEAT_MZSCHEME
1813     void	    *mzscheme_ref;	/* The MzScheme value referring to this window */
1814 #endif
1815 
1816 #ifdef FEAT_PERL
1817     void	*perl_private;
1818 #endif
1819 
1820 #ifdef FEAT_PYTHON
1821     void	*python_ref;	/* The Python value referring to this
1822 					   window */
1823 #endif
1824 
1825 #ifdef FEAT_TCL
1826     void	*tcl_ref;
1827 #endif
1828 
1829 #ifdef FEAT_RUBY
1830     void	*ruby_ref;
1831 #endif
1832 };
1833 
1834 /*
1835  * Arguments for operators.
1836  */
1837 typedef struct oparg
1838 {
1839     int		op_type;	/* current pending operator type */
1840     int		regname;	/* register to use for the operator */
1841     int		motion_type;	/* type of the current cursor motion */
1842     int		motion_force;	/* force motion type: 'v', 'V' or CTRL-V */
1843     int		use_reg_one;	/* TRUE if delete uses reg 1 even when not
1844 				   linewise */
1845     int		inclusive;	/* TRUE if char motion is inclusive (only
1846 				   valid when motion_type is MCHAR */
1847     int		end_adjusted;	/* backuped b_op_end one char (only used by
1848 				   do_format()) */
1849     pos_T	start;		/* start of the operator */
1850     pos_T	end;		/* end of the operator */
1851     pos_T	cursor_start;	/* cursor position before motion for "gw" */
1852 
1853     long	line_count;	/* number of lines from op_start to op_end
1854 				   (inclusive) */
1855     int		empty;		/* op_start and op_end the same (only used by
1856 				   do_change()) */
1857 #ifdef FEAT_VISUAL
1858     int		is_VIsual;	/* operator on Visual area */
1859     int		block_mode;	/* current operator is Visual block mode */
1860 #endif
1861     colnr_T	start_vcol;	/* start col for block mode operator */
1862     colnr_T	end_vcol;	/* end col for block mode operator */
1863 } oparg_T;
1864 
1865 /*
1866  * Arguments for Normal mode commands.
1867  */
1868 typedef struct cmdarg
1869 {
1870     oparg_T	*oap;		/* Operator arguments */
1871     int		prechar;	/* prefix character (optional, always 'g') */
1872     int		cmdchar;	/* command character */
1873     int		nchar;		/* next command character (optional) */
1874 #ifdef FEAT_MBYTE
1875     int		ncharC1;	/* first composing character (optional) */
1876     int		ncharC2;	/* second composing character (optional) */
1877 #endif
1878     int		extra_char;	/* yet another character (optional) */
1879     long	opcount;	/* count before an operator */
1880     long	count0;		/* count before command, default 0 */
1881     long	count1;		/* count before command, default 1 */
1882     int		arg;		/* extra argument from nv_cmds[] */
1883     int		retval;		/* return: CA_* values */
1884     char_u	*searchbuf;	/* return: pointer to search pattern or NULL */
1885 } cmdarg_T;
1886 
1887 /* values for retval: */
1888 #define CA_COMMAND_BUSY	    1	/* skip restarting edit() once */
1889 #define CA_NO_ADJ_OP_END    2	/* don't adjust operator end */
1890 
1891 #ifdef CURSOR_SHAPE
1892 /*
1893  * struct to store values from 'guicursor' and 'mouseshape'
1894  */
1895 /* Indexes in shape_table[] */
1896 #define SHAPE_IDX_N	0	/* Normal mode */
1897 #define SHAPE_IDX_V	1	/* Visual mode */
1898 #define SHAPE_IDX_I	2	/* Insert mode */
1899 #define SHAPE_IDX_R	3	/* Replace mode */
1900 #define SHAPE_IDX_C	4	/* Command line Normal mode */
1901 #define SHAPE_IDX_CI	5	/* Command line Insert mode */
1902 #define SHAPE_IDX_CR	6	/* Command line Replace mode */
1903 #define SHAPE_IDX_O	7	/* Operator-pending mode */
1904 #define SHAPE_IDX_VE	8	/* Visual mode with 'seleciton' exclusive */
1905 #define SHAPE_IDX_CLINE	9	/* On command line */
1906 #define SHAPE_IDX_STATUS 10	/* A status line */
1907 #define SHAPE_IDX_SDRAG 11	/* dragging a status line */
1908 #define SHAPE_IDX_VSEP	12	/* A vertical separator line */
1909 #define SHAPE_IDX_VDRAG 13	/* dragging a vertical separator line */
1910 #define SHAPE_IDX_MORE	14	/* Hit-return or More */
1911 #define SHAPE_IDX_MOREL	15	/* Hit-return or More in last line */
1912 #define SHAPE_IDX_SM	16	/* showing matching paren */
1913 #define SHAPE_IDX_COUNT	17
1914 
1915 #define SHAPE_BLOCK	0	/* block cursor */
1916 #define SHAPE_HOR	1	/* horizontal bar cursor */
1917 #define SHAPE_VER	2	/* vertical bar cursor */
1918 
1919 #define MSHAPE_NUMBERED	1000	/* offset for shapes identified by number */
1920 #define MSHAPE_HIDE	1	/* hide mouse pointer */
1921 
1922 #define SHAPE_MOUSE	1	/* used for mouse pointer shape */
1923 #define SHAPE_CURSOR	2	/* used for text cursor shape */
1924 
1925 typedef struct cursor_entry
1926 {
1927     int		shape;		/* one of the SHAPE_ defines */
1928     int		mshape;		/* one of the MSHAPE defines */
1929     int		percentage;	/* percentage of cell for bar */
1930     long	blinkwait;	/* blinking, wait time before blinking starts */
1931     long	blinkon;	/* blinking, on time */
1932     long	blinkoff;	/* blinking, off time */
1933     int		id;		/* highlight group ID */
1934     int		id_lm;		/* highlight group ID for :lmap mode */
1935     char	*name;		/* mode name (fixed) */
1936     char	used_for;	/* SHAPE_MOUSE and/or SHAPE_CURSOR */
1937 } cursorentry_T;
1938 #endif /* CURSOR_SHAPE */
1939 
1940 #ifdef FEAT_MENU
1941 
1942 /* Indices into vimmenu_T->strings[] and vimmenu_T->noremap[] for each mode */
1943 #define MENU_INDEX_INVALID	-1
1944 #define MENU_INDEX_NORMAL	0
1945 #define MENU_INDEX_VISUAL	1
1946 #define MENU_INDEX_OP_PENDING	2
1947 #define MENU_INDEX_INSERT	3
1948 #define MENU_INDEX_CMDLINE	4
1949 #define MENU_INDEX_TIP		5
1950 #define MENU_MODES		6
1951 
1952 /* Menu modes */
1953 #define MENU_NORMAL_MODE	(1 << MENU_INDEX_NORMAL)
1954 #define MENU_VISUAL_MODE	(1 << MENU_INDEX_VISUAL)
1955 #define MENU_OP_PENDING_MODE	(1 << MENU_INDEX_OP_PENDING)
1956 #define MENU_INSERT_MODE	(1 << MENU_INDEX_INSERT)
1957 #define MENU_CMDLINE_MODE	(1 << MENU_INDEX_CMDLINE)
1958 #define MENU_TIP_MODE		(1 << MENU_INDEX_TIP)
1959 #define MENU_ALL_MODES		((1 << MENU_INDEX_TIP) - 1)
1960 /*note MENU_INDEX_TIP is not a 'real' mode*/
1961 
1962 /* Start a menu name with this to not include it on the main menu bar */
1963 #define MNU_HIDDEN_CHAR		']'
1964 
1965 typedef struct VimMenu vimmenu_T;
1966 
1967 struct VimMenu
1968 {
1969     int		modes;		    /* Which modes is this menu visible for? */
1970     int		enabled;	    /* for which modes the menu is enabled */
1971     char_u	*name;		    /* Name of menu */
1972     char_u	*dname;		    /* Displayed Name (without '&') */
1973     int		mnemonic;	    /* mnemonic key (after '&') */
1974     char_u	*actext;	    /* accelerator text (after TAB) */
1975     int		priority;	    /* Menu order priority */
1976 #ifdef FEAT_GUI
1977     void	(*cb) __ARGS((vimmenu_T *));	    /* Call-back routine */
1978 #endif
1979 #ifdef FEAT_TOOLBAR
1980     char_u	*iconfile;	    /* name of file for icon or NULL */
1981     int		iconidx;	    /* icon index (-1 if not set) */
1982     int		icon_builtin;	    /* icon names is BuiltIn{nr} */
1983 #endif
1984     char_u	*strings[MENU_MODES]; /* Mapped string for each mode */
1985     int		noremap[MENU_MODES]; /* A REMAP_ flag for each mode */
1986     char	silent[MENU_MODES]; /* A silent flag for each mode */
1987     vimmenu_T	*children;	    /* Children of sub-menu */
1988     vimmenu_T	*parent;	    /* Parent of menu */
1989     vimmenu_T	*next;		    /* Next item in menu */
1990 #ifdef FEAT_GUI_X11
1991     Widget	id;		    /* Manage this to enable item */
1992     Widget	submenu_id;	    /* If this is submenu, add children here */
1993 #endif
1994 #ifdef FEAT_GUI_KDE
1995     QPopupMenu *widget;
1996 #endif
1997 #ifdef FEAT_GUI_GTK
1998     GtkWidget	*id;		    /* Manage this to enable item */
1999     GtkWidget	*submenu_id;	    /* If this is submenu, add children here */
2000     GtkWidget	*tearoff_handle;
2001     GtkWidget   *label;		    /* Used by "set wak=" code. */
2002 #endif
2003 #ifdef FEAT_GUI_MOTIF
2004     int		sensitive;	    /* turn button on/off */
2005     char	**xpm;		    /* pixmap data */
2006     char	*xpm_fname;	    /* file with pixmap data */
2007 #endif
2008 #ifdef FEAT_GUI_ATHENA
2009     Pixmap	image;		    /* Toolbar image */
2010 #endif
2011 #ifdef FEAT_BEVAL_TIP
2012     BalloonEval *tip;		    /* tooltip for this menu item */
2013 #endif
2014 #ifdef FEAT_GUI_W16
2015     UINT	id;		    /* Id of menu item */
2016     HMENU	submenu_id;	    /* If this is submenu, add children here */
2017 #endif
2018 #ifdef FEAT_GUI_W32
2019     UINT	id;		    /* Id of menu item */
2020     HMENU	submenu_id;	    /* If this is submenu, add children here */
2021     HWND	tearoff_handle;	    /* hWnd of tearoff if created */
2022 #endif
2023 #ifdef FEAT_GUI_MAC
2024 /*  MenuHandle	id; */
2025 /*  short	index;	*/	    /* the item index within the father menu */
2026     short	menu_id;	    /* the menu id to which this item belong */
2027     short	submenu_id;	    /* the menu id of the children (could be
2028 				       get throught some tricks) */
2029     MenuHandle	menu_handle;
2030     MenuHandle	submenu_handle;
2031 #endif
2032 #ifdef RISCOS
2033     int		*id;		    /* Not used, but gui.c needs it */
2034     int		greyed_out;	    /* Flag */
2035     int		hidden;
2036 #endif
2037 #ifdef FEAT_GUI_PHOTON
2038     PtWidget_t	*id;
2039     PtWidget_t	*submenu_id;
2040 #endif
2041 };
2042 #else
2043 /* For generating prototypes when FEAT_MENU isn't defined. */
2044 typedef int vimmenu_T;
2045 
2046 #endif /* FEAT_MENU */
2047 
2048 /*
2049  * Struct to save values in before executing autocommands for a buffer that is
2050  * not the current buffer.
2051  */
2052 typedef struct
2053 {
2054     buf_T	*save_buf;	/* saved curbuf */
2055     buf_T	*new_curbuf;	/* buffer to be used */
2056     win_T	*save_curwin;	/* saved curwin, NULL if it didn't change */
2057     win_T	*new_curwin;	/* new curwin if save_curwin != NULL */
2058     pos_T	save_cursor;	/* saved cursor pos of save_curwin */
2059     linenr_T	save_topline;	/* saved topline of save_curwin */
2060 #ifdef FEAT_DIFF
2061     int		save_topfill;	/* saved topfill of save_curwin */
2062 #endif
2063 } aco_save_T;
2064 
2065 /*
2066  * Generic option table item, only used for printer at the moment.
2067  */
2068 typedef struct
2069 {
2070     const char	*name;
2071     int		hasnum;
2072     long	number;
2073     char_u	*string;	/* points into option string */
2074     int		strlen;
2075     int		present;
2076 } option_table_T;
2077 
2078 /*
2079  * Structure to hold printing color and font attributes.
2080  */
2081 typedef struct
2082 {
2083     long_u	fg_color;
2084     long_u	bg_color;
2085     int		bold;
2086     int		italic;
2087     int		underline;
2088     int		undercurl;
2089 } prt_text_attr_T;
2090 
2091 /*
2092  * Structure passed back to the generic printer code.
2093  */
2094 typedef struct
2095 {
2096     int		n_collated_copies;
2097     int		n_uncollated_copies;
2098     int		duplex;
2099     int		chars_per_line;
2100     int		lines_per_page;
2101     int		has_color;
2102     prt_text_attr_T number;
2103 #ifdef FEAT_SYN_HL
2104     int		modec;
2105     int		do_syntax;
2106 #endif
2107     int		user_abort;
2108     char_u	*jobname;
2109 #ifdef FEAT_POSTSCRIPT
2110     char_u	*outfile;
2111     char_u	*arguments;
2112 #endif
2113 } prt_settings_T;
2114 
2115 #define PRINT_NUMBER_WIDTH 8
2116