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Bram Moolenaar071d4272004-06-13 20:20:40 +00001/* 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 * See README.txt for an overview of the Vim source code.
8 */
9
10/*
11 * getchar.c
12 *
13 * functions related with getting a character from the user/mapping/redo/...
14 *
15 * manipulations with redo buffer and stuff buffer
16 * mappings and abbreviations
17 */
18
19#include "vim.h"
20
21/*
22 * These buffers are used for storing:
23 * - stuffed characters: A command that is translated into another command.
24 * - redo characters: will redo the last change.
25 * - recorded chracters: for the "q" command.
26 *
27 * The bytes are stored like in the typeahead buffer:
28 * - K_SPECIAL introduces a special key (two more bytes follow). A literal
29 * K_SPECIAL is stored as K_SPECIAL KS_SPECIAL KE_FILLER.
30 * - CSI introduces a GUI termcap code (also when gui.in_use is FALSE,
31 * otherwise switching the GUI on would make mappings invalid).
32 * A literal CSI is stored as CSI KS_EXTRA KE_CSI.
33 * These translations are also done on multi-byte characters!
34 *
35 * Escaping CSI bytes is done by the system-specific input functions, called
36 * by ui_inchar().
37 * Escaping K_SPECIAL is done by inchar().
38 * Un-escaping is done by vgetc().
39 */
40
41#define MINIMAL_SIZE 20 /* minimal size for b_str */
42
43static struct buffheader redobuff = {{NULL, {NUL}}, NULL, 0, 0};
44static struct buffheader old_redobuff = {{NULL, {NUL}}, NULL, 0, 0};
45#if defined(FEAT_AUTOCMD) || defined(FEAT_EVAL) || defined(PROTO)
46static struct buffheader save_redobuff = {{NULL, {NUL}}, NULL, 0, 0};
47static struct buffheader save_old_redobuff = {{NULL, {NUL}}, NULL, 0, 0};
48#endif
49static struct buffheader recordbuff = {{NULL, {NUL}}, NULL, 0, 0};
50
51static int typeahead_char = 0; /* typeahead char that's not flushed */
52
53/*
54 * when block_redo is TRUE redo buffer will not be changed
55 * used by edit() to repeat insertions and 'V' command for redoing
56 */
57static int block_redo = FALSE;
58
59/*
60 * Make a hash value for a mapping.
61 * "mode" is the lower 4 bits of the State for the mapping.
62 * "c1" is the first character of the "lhs".
63 * Returns a value between 0 and 255, index in maphash.
64 * Put Normal/Visual mode mappings mostly separately from Insert/Cmdline mode.
65 */
66#define MAP_HASH(mode, c1) (((mode) & (NORMAL + VISUAL + OP_PENDING)) ? (c1) : ((c1) ^ 0x80))
67
68/*
69 * Each mapping is put in one of the 256 hash lists, to speed up finding it.
70 */
71static mapblock_T *(maphash[256]);
72static int maphash_valid = FALSE;
73
74/*
75 * List used for abbreviations.
76 */
77static mapblock_T *first_abbr = NULL; /* first entry in abbrlist */
78
79static int KeyNoremap = FALSE; /* remapping disabled */
80
81/*
82 * variables used by vgetorpeek() and flush_buffers()
83 *
84 * typebuf.tb_buf[] contains all characters that are not consumed yet.
85 * typebuf.tb_buf[typebuf.tb_off] is the first valid character.
86 * typebuf.tb_buf[typebuf.tb_off + typebuf.tb_len - 1] is the last valid char.
87 * typebuf.tb_buf[typebuf.tb_off + typebuf.tb_len] must be NUL.
88 * The head of the buffer may contain the result of mappings, abbreviations
89 * and @a commands. The length of this part is typebuf.tb_maplen.
90 * typebuf.tb_silent is the part where <silent> applies.
91 * After the head are characters that come from the terminal.
92 * typebuf.tb_no_abbr_cnt is the number of characters in typebuf.tb_buf that
93 * should not be considered for abbreviations.
94 * Some parts of typebuf.tb_buf may not be mapped. These parts are remembered
95 * in typebuf.tb_noremap[], which is the same length as typebuf.tb_buf and
96 * contains RM_NONE for the characters that are not to be remapped.
97 * typebuf.tb_noremap[typebuf.tb_off] is the first valid flag.
98 * (typebuf has been put in globals.h, because check_termcode() needs it).
99 */
100#define RM_YES 0 /* tb_noremap: remap */
101#define RM_NONE 1 /* tb_noremap: don't remap */
102#define RM_SCRIPT 2 /* tb_noremap: remap local script mappings */
Bram Moolenaarf4b8e572004-06-24 15:53:16 +0000103#define RM_ABBR 4 /* tb_noremap: don't remap, do abbrev. */
Bram Moolenaar071d4272004-06-13 20:20:40 +0000104
105/* typebuf.tb_buf has three parts: room in front (for result of mappings), the
106 * middle for typeahead and room for new characters (which needs to be 3 *
107 * MAXMAPLEN) for the Amiga).
108 */
109#define TYPELEN_INIT (5 * (MAXMAPLEN + 3))
110static char_u typebuf_init[TYPELEN_INIT]; /* initial typebuf.tb_buf */
111static char_u noremapbuf_init[TYPELEN_INIT]; /* initial typebuf.tb_noremap */
112
113static int last_recorded_len = 0; /* number of last recorded chars */
114
115static char_u *get_buffcont __ARGS((struct buffheader *, int));
116static void add_buff __ARGS((struct buffheader *, char_u *, long n));
117static void add_num_buff __ARGS((struct buffheader *, long));
118static void add_char_buff __ARGS((struct buffheader *, int));
119static int read_stuff __ARGS((int advance));
120static void start_stuff __ARGS((void));
121static int read_redo __ARGS((int, int));
122static void copy_redo __ARGS((int));
123static void init_typebuf __ARGS((void));
124static void gotchars __ARGS((char_u *, int));
125static void may_sync_undo __ARGS((void));
126static void closescript __ARGS((void));
127static int vgetorpeek __ARGS((int));
128static void map_free __ARGS((mapblock_T **));
129static void validate_maphash __ARGS((void));
130static void showmap __ARGS((mapblock_T *mp, int local));
131
132/*
133 * Free and clear a buffer.
134 */
135 void
136free_buff(buf)
137 struct buffheader *buf;
138{
139 struct buffblock *p, *np;
140
141 for (p = buf->bh_first.b_next; p != NULL; p = np)
142 {
143 np = p->b_next;
144 vim_free(p);
145 }
146 buf->bh_first.b_next = NULL;
147}
148
149/*
150 * Return the contents of a buffer as a single string.
151 * K_SPECIAL and CSI in the returned string are escaped.
152 */
153 static char_u *
154get_buffcont(buffer, dozero)
155 struct buffheader *buffer;
156 int dozero; /* count == zero is not an error */
157{
158 long_u count = 0;
159 char_u *p = NULL;
160 char_u *p2;
161 char_u *str;
162 struct buffblock *bp;
163
164 /* compute the total length of the string */
165 for (bp = buffer->bh_first.b_next; bp != NULL; bp = bp->b_next)
166 count += (long_u)STRLEN(bp->b_str);
167
168 if ((count || dozero) && (p = lalloc(count + 1, TRUE)) != NULL)
169 {
170 p2 = p;
171 for (bp = buffer->bh_first.b_next; bp != NULL; bp = bp->b_next)
172 for (str = bp->b_str; *str; )
173 *p2++ = *str++;
174 *p2 = NUL;
175 }
176 return (p);
177}
178
179/*
180 * Return the contents of the record buffer as a single string
181 * and clear the record buffer.
182 * K_SPECIAL and CSI in the returned string are escaped.
183 */
184 char_u *
185get_recorded()
186{
187 char_u *p;
188 size_t len;
189
190 p = get_buffcont(&recordbuff, TRUE);
191 free_buff(&recordbuff);
192
193 /*
194 * Remove the characters that were added the last time, these must be the
195 * (possibly mapped) characters that stopped the recording.
196 */
197 len = STRLEN(p);
198 if ((int)len >= last_recorded_len)
199 {
200 len -= last_recorded_len;
201 p[len] = NUL;
202 }
203
204 /*
205 * When stopping recording from Insert mode with CTRL-O q, also remove the
206 * CTRL-O.
207 */
208 if (len > 0 && restart_edit != 0 && p[len - 1] == Ctrl_O)
209 p[len - 1] = NUL;
210
211 return (p);
212}
213
214/*
215 * Return the contents of the redo buffer as a single string.
216 * K_SPECIAL and CSI in the returned string are escaped.
217 */
218 char_u *
219get_inserted()
220{
221 return(get_buffcont(&redobuff, FALSE));
222}
223
224/*
225 * add string "s" after the current block of buffer "buf"
226 * K_SPECIAL and CSI should have been escaped already.
227 */
228 static void
229add_buff(buf, s, slen)
230 struct buffheader *buf;
231 char_u *s;
232 long slen; /* length of "s" or -1 */
233{
234 struct buffblock *p;
235 long_u len;
236
237 if (slen < 0)
238 slen = (long)STRLEN(s);
239 if (slen == 0) /* don't add empty strings */
240 return;
241
242 if (buf->bh_first.b_next == NULL) /* first add to list */
243 {
244 buf->bh_space = 0;
245 buf->bh_curr = &(buf->bh_first);
246 }
247 else if (buf->bh_curr == NULL) /* buffer has already been read */
248 {
249 EMSG(_("E222: Add to read buffer"));
250 return;
251 }
252 else if (buf->bh_index != 0)
253 STRCPY(buf->bh_first.b_next->b_str,
254 buf->bh_first.b_next->b_str + buf->bh_index);
255 buf->bh_index = 0;
256
257 if (buf->bh_space >= (int)slen)
258 {
259 len = (long_u)STRLEN(buf->bh_curr->b_str);
260 STRNCPY(buf->bh_curr->b_str + len, s, slen);
261 buf->bh_curr->b_str[len + slen] = NUL;
262 buf->bh_space -= slen;
263 }
264 else
265 {
266 if (slen < MINIMAL_SIZE)
267 len = MINIMAL_SIZE;
268 else
269 len = slen;
270 p = (struct buffblock *)lalloc((long_u)(sizeof(struct buffblock) + len),
271 TRUE);
272 if (p == NULL)
273 return; /* no space, just forget it */
274 buf->bh_space = len - slen;
275 STRNCPY(p->b_str, s, slen);
276 p->b_str[slen] = NUL;
277
278 p->b_next = buf->bh_curr->b_next;
279 buf->bh_curr->b_next = p;
280 buf->bh_curr = p;
281 }
282 return;
283}
284
285/*
286 * Add number "n" to buffer "buf".
287 */
288 static void
289add_num_buff(buf, n)
290 struct buffheader *buf;
291 long n;
292{
293 char_u number[32];
294
295 sprintf((char *)number, "%ld", n);
296 add_buff(buf, number, -1L);
297}
298
299/*
300 * Add character 'c' to buffer "buf".
301 * Translates special keys, NUL, CSI, K_SPECIAL and multibyte characters.
302 */
303 static void
304add_char_buff(buf, c)
305 struct buffheader *buf;
306 int c;
307{
308#ifdef FEAT_MBYTE
309 char_u bytes[MB_MAXBYTES + 1];
310 int len;
311 int i;
312#endif
313 char_u temp[4];
314
315#ifdef FEAT_MBYTE
316 if (IS_SPECIAL(c))
317 len = 1;
318 else
319 len = (*mb_char2bytes)(c, bytes);
320 for (i = 0; i < len; ++i)
321 {
322 if (!IS_SPECIAL(c))
323 c = bytes[i];
324#endif
325
326 if (IS_SPECIAL(c) || c == K_SPECIAL || c == NUL)
327 {
328 /* translate special key code into three byte sequence */
329 temp[0] = K_SPECIAL;
330 temp[1] = K_SECOND(c);
331 temp[2] = K_THIRD(c);
332 temp[3] = NUL;
333 }
334#ifdef FEAT_GUI
335 else if (c == CSI)
336 {
337 /* Translate a CSI to a CSI - KS_EXTRA - KE_CSI sequence */
338 temp[0] = CSI;
339 temp[1] = KS_EXTRA;
340 temp[2] = (int)KE_CSI;
341 temp[3] = NUL;
342 }
343#endif
344 else
345 {
346 temp[0] = c;
347 temp[1] = NUL;
348 }
349 add_buff(buf, temp, -1L);
350#ifdef FEAT_MBYTE
351 }
352#endif
353}
354
355/*
356 * Get one byte from the stuff buffer.
357 * If advance == TRUE go to the next char.
358 * No translation is done K_SPECIAL and CSI are escaped.
359 */
360 static int
361read_stuff(advance)
362 int advance;
363{
364 char_u c;
365 struct buffblock *curr;
366
367 if (stuffbuff.bh_first.b_next == NULL) /* buffer is empty */
368 return NUL;
369
370 curr = stuffbuff.bh_first.b_next;
371 c = curr->b_str[stuffbuff.bh_index];
372
373 if (advance)
374 {
375 if (curr->b_str[++stuffbuff.bh_index] == NUL)
376 {
377 stuffbuff.bh_first.b_next = curr->b_next;
378 vim_free(curr);
379 stuffbuff.bh_index = 0;
380 }
381 }
382 return c;
383}
384
385/*
386 * Prepare the stuff buffer for reading (if it contains something).
387 */
388 static void
389start_stuff()
390{
391 if (stuffbuff.bh_first.b_next != NULL)
392 {
393 stuffbuff.bh_curr = &(stuffbuff.bh_first);
394 stuffbuff.bh_space = 0;
395 }
396}
397
398/*
399 * Return TRUE if the stuff buffer is empty.
400 */
401 int
402stuff_empty()
403{
404 return (stuffbuff.bh_first.b_next == NULL);
405}
406
407/*
408 * Set a typeahead character that won't be flushed.
409 */
410 void
411typeahead_noflush(c)
412 int c;
413{
414 typeahead_char = c;
415}
416
417/*
418 * Remove the contents of the stuff buffer and the mapped characters in the
419 * typeahead buffer (used in case of an error). If 'typeahead' is true,
420 * flush all typeahead characters (used when interrupted by a CTRL-C).
421 */
422 void
423flush_buffers(typeahead)
424 int typeahead;
425{
426 init_typebuf();
427
428 start_stuff();
429 while (read_stuff(TRUE) != NUL)
430 ;
431
432 if (typeahead) /* remove all typeahead */
433 {
434 /*
435 * We have to get all characters, because we may delete the first part
436 * of an escape sequence.
437 * In an xterm we get one char at a time and we have to get them all.
438 */
439 while (inchar(typebuf.tb_buf, typebuf.tb_buflen - 1, 10L,
440 typebuf.tb_change_cnt) != 0)
441 ;
442 typebuf.tb_off = MAXMAPLEN;
443 typebuf.tb_len = 0;
444 }
445 else /* remove mapped characters only */
446 {
447 typebuf.tb_off += typebuf.tb_maplen;
448 typebuf.tb_len -= typebuf.tb_maplen;
449 }
450 typebuf.tb_maplen = 0;
451 typebuf.tb_silent = 0;
452 cmd_silent = FALSE;
453 typebuf.tb_no_abbr_cnt = 0;
454}
455
456/*
457 * The previous contents of the redo buffer is kept in old_redobuffer.
458 * This is used for the CTRL-O <.> command in insert mode.
459 */
460 void
461ResetRedobuff()
462{
463 if (!block_redo)
464 {
465 free_buff(&old_redobuff);
466 old_redobuff = redobuff;
467 redobuff.bh_first.b_next = NULL;
468 }
469}
470
471#if defined(FEAT_AUTOCMD) || defined(FEAT_EVAL) || defined(PROTO)
472/*
473 * Save redobuff and old_redobuff to save_redobuff and save_old_redobuff.
474 * Used before executing autocommands and user functions.
475 */
476static int save_level = 0;
477
478 void
479saveRedobuff()
480{
481 char_u *s;
482
483 if (save_level++ == 0)
484 {
485 save_redobuff = redobuff;
486 redobuff.bh_first.b_next = NULL;
487 save_old_redobuff = old_redobuff;
488 old_redobuff.bh_first.b_next = NULL;
489
490 /* Make a copy, so that ":normal ." in a function works. */
491 s = get_buffcont(&save_redobuff, FALSE);
492 if (s != NULL)
493 {
494 add_buff(&redobuff, s, -1L);
495 vim_free(s);
496 }
497 }
498}
499
500/*
501 * Restore redobuff and old_redobuff from save_redobuff and save_old_redobuff.
502 * Used after executing autocommands and user functions.
503 */
504 void
505restoreRedobuff()
506{
507 if (--save_level == 0)
508 {
509 free_buff(&redobuff);
510 redobuff = save_redobuff;
511 free_buff(&old_redobuff);
512 old_redobuff = save_old_redobuff;
513 }
514}
515#endif
516
517/*
518 * Append "s" to the redo buffer.
519 * K_SPECIAL and CSI should already have been escaped.
520 */
521 void
522AppendToRedobuff(s)
523 char_u *s;
524{
525 if (!block_redo)
526 add_buff(&redobuff, s, -1L);
527}
528
529/*
530 * Append to Redo buffer literally, escaping special characters with CTRL-V.
531 * K_SPECIAL and CSI are escaped as well.
532 */
533 void
534AppendToRedobuffLit(s)
535 char_u *s;
536{
537 int c;
538 char_u *start;
539
540 if (block_redo)
541 return;
542
543 while (*s != NUL)
544 {
545 /* Put a string of normal characters in the redo buffer (that's
546 * faster). */
547 start = s;
548 while (*s >= ' '
549#ifndef EBCDIC
550 && *s < DEL /* EBCDIC: all chars above space are normal */
551#endif
552 )
553 ++s;
554
555 /* Don't put '0' or '^' as last character, just in case a CTRL-D is
556 * typed next. */
557 if (*s == NUL && (s[-1] == '0' || s[-1] == '^'))
558 --s;
559 if (s > start)
560 add_buff(&redobuff, start, (long)(s - start));
561
562 if (*s != NUL)
563 {
564 /* Handle a special or multibyte character. */
565#ifdef FEAT_MBYTE
566 if (has_mbyte)
567 {
568 c = (*mb_ptr2char)(s);
569 if (enc_utf8)
570 /* Handle composing chars as well. */
571 s += utf_ptr2len_check(s);
572 else
573 s += (*mb_ptr2len_check)(s);
574 }
575 else
576#endif
577 c = *s++;
578 if (c < ' ' || c == DEL || (*s == NUL && (c == '0' || c == '^')))
579 add_char_buff(&redobuff, Ctrl_V);
580
581 /* CTRL-V '0' must be inserted as CTRL-V 048 (EBCDIC: xf0) */
582 if (*s == NUL && c == '0')
583#ifdef EBCDIC
584 add_buff(&redobuff, (char_u *)"xf0", 3L);
585#else
586 add_buff(&redobuff, (char_u *)"048", 3L);
587#endif
588 else
589 add_char_buff(&redobuff, c);
590 }
591 }
592}
593
594/*
595 * Append a character to the redo buffer.
596 * Translates special keys, NUL, CSI, K_SPECIAL and multibyte characters.
597 */
598 void
599AppendCharToRedobuff(c)
600 int c;
601{
602 if (!block_redo)
603 add_char_buff(&redobuff, c);
604}
605
606/*
607 * Append a number to the redo buffer.
608 */
609 void
610AppendNumberToRedobuff(n)
611 long n;
612{
613 if (!block_redo)
614 add_num_buff(&redobuff, n);
615}
616
617/*
618 * Append string "s" to the stuff buffer.
619 * CSI and K_SPECIAL must already have been escaped.
620 */
621 void
622stuffReadbuff(s)
623 char_u *s;
624{
625 add_buff(&stuffbuff, s, -1L);
626}
627
628 void
629stuffReadbuffLen(s, len)
630 char_u *s;
631 long len;
632{
633 add_buff(&stuffbuff, s, len);
634}
635
636#if defined(FEAT_EVAL) || defined(PROTO)
637/*
638 * Stuff "s" into the stuff buffer, leaving special key codes unmodified and
639 * escaping other K_SPECIAL and CSI bytes.
640 */
641 void
642stuffReadbuffSpec(s)
643 char_u *s;
644{
645 while (*s != NUL)
646 {
647 if (*s == K_SPECIAL && s[1] != NUL && s[2] != NUL)
648 {
649 /* Insert special key literally. */
650 stuffReadbuffLen(s, 3L);
651 s += 3;
652 }
653 else
654#ifdef FEAT_MBYTE
655 stuffcharReadbuff(mb_ptr2char_adv(&s));
656#else
657 stuffcharReadbuff(*s++);
658#endif
659 }
660}
661#endif
662
663/*
664 * Append a character to the stuff buffer.
665 * Translates special keys, NUL, CSI, K_SPECIAL and multibyte characters.
666 */
667 void
668stuffcharReadbuff(c)
669 int c;
670{
671 add_char_buff(&stuffbuff, c);
672}
673
674/*
675 * Append a number to the stuff buffer.
676 */
677 void
678stuffnumReadbuff(n)
679 long n;
680{
681 add_num_buff(&stuffbuff, n);
682}
683
684/*
685 * Read a character from the redo buffer. Translates K_SPECIAL, CSI and
686 * multibyte characters.
687 * The redo buffer is left as it is.
688 * if init is TRUE, prepare for redo, return FAIL if nothing to redo, OK
689 * otherwise
690 * if old is TRUE, use old_redobuff instead of redobuff
691 */
692 static int
693read_redo(init, old_redo)
694 int init;
695 int old_redo;
696{
697 static struct buffblock *bp;
698 static char_u *p;
699 int c;
700#ifdef FEAT_MBYTE
701 int n;
702 char_u buf[MB_MAXBYTES];
703 int i;
704#endif
705
706 if (init)
707 {
708 if (old_redo)
709 bp = old_redobuff.bh_first.b_next;
710 else
711 bp = redobuff.bh_first.b_next;
712 if (bp == NULL)
713 return FAIL;
714 p = bp->b_str;
715 return OK;
716 }
717 if ((c = *p) != NUL)
718 {
719 /* Reverse the conversion done by add_char_buff() */
720#ifdef FEAT_MBYTE
721 /* For a multi-byte character get all the bytes and return the
722 * converted character. */
723 if (has_mbyte && (c != K_SPECIAL || p[1] == KS_SPECIAL))
724 n = MB_BYTE2LEN_CHECK(c);
725 else
726 n = 1;
727 for (i = 0; ; ++i)
728#endif
729 {
730 if (c == K_SPECIAL) /* special key or escaped K_SPECIAL */
731 {
732 c = TO_SPECIAL(p[1], p[2]);
733 p += 2;
734 }
735#ifdef FEAT_GUI
736 if (c == CSI) /* escaped CSI */
737 p += 2;
738#endif
739 if (*++p == NUL && bp->b_next != NULL)
740 {
741 bp = bp->b_next;
742 p = bp->b_str;
743 }
744#ifdef FEAT_MBYTE
745 buf[i] = c;
746 if (i == n - 1) /* last byte of a character */
747 {
748 if (n != 1)
749 c = (*mb_ptr2char)(buf);
750 break;
751 }
752 c = *p;
753 if (c == NUL) /* cannot happen? */
754 break;
755#endif
756 }
757 }
758
759 return c;
760}
761
762/*
763 * Copy the rest of the redo buffer into the stuff buffer (in a slow way).
764 * If old_redo is TRUE, use old_redobuff instead of redobuff.
765 * The escaped K_SPECIAL and CSI are copied without translation.
766 */
767 static void
768copy_redo(old_redo)
769 int old_redo;
770{
771 int c;
772
773 while ((c = read_redo(FALSE, old_redo)) != NUL)
774 stuffcharReadbuff(c);
775}
776
777/*
778 * Stuff the redo buffer into the stuffbuff.
779 * Insert the redo count into the command.
780 * If "old_redo" is TRUE, the last but one command is repeated
781 * instead of the last command (inserting text). This is used for
782 * CTRL-O <.> in insert mode
783 *
784 * return FAIL for failure, OK otherwise
785 */
786 int
787start_redo(count, old_redo)
788 long count;
789 int old_redo;
790{
791 int c;
792
793 /* init the pointers; return if nothing to redo */
794 if (read_redo(TRUE, old_redo) == FAIL)
795 return FAIL;
796
797 c = read_redo(FALSE, old_redo);
798
799 /* copy the buffer name, if present */
800 if (c == '"')
801 {
802 add_buff(&stuffbuff, (char_u *)"\"", 1L);
803 c = read_redo(FALSE, old_redo);
804
805 /* if a numbered buffer is used, increment the number */
806 if (c >= '1' && c < '9')
807 ++c;
808 add_char_buff(&stuffbuff, c);
809 c = read_redo(FALSE, old_redo);
810 }
811
812#ifdef FEAT_VISUAL
813 if (c == 'v') /* redo Visual */
814 {
815 VIsual = curwin->w_cursor;
816 VIsual_active = TRUE;
817 VIsual_select = FALSE;
818 VIsual_reselect = TRUE;
819 redo_VIsual_busy = TRUE;
820 c = read_redo(FALSE, old_redo);
821 }
822#endif
823
824 /* try to enter the count (in place of a previous count) */
825 if (count)
826 {
827 while (VIM_ISDIGIT(c)) /* skip "old" count */
828 c = read_redo(FALSE, old_redo);
829 add_num_buff(&stuffbuff, count);
830 }
831
832 /* copy from the redo buffer into the stuff buffer */
833 add_char_buff(&stuffbuff, c);
834 copy_redo(old_redo);
835 return OK;
836}
837
838/*
839 * Repeat the last insert (R, o, O, a, A, i or I command) by stuffing
840 * the redo buffer into the stuffbuff.
841 * return FAIL for failure, OK otherwise
842 */
843 int
844start_redo_ins()
845{
846 int c;
847
848 if (read_redo(TRUE, FALSE) == FAIL)
849 return FAIL;
850 start_stuff();
851
852 /* skip the count and the command character */
853 while ((c = read_redo(FALSE, FALSE)) != NUL)
854 {
855 if (vim_strchr((char_u *)"AaIiRrOo", c) != NULL)
856 {
857 if (c == 'O' || c == 'o')
858 stuffReadbuff(NL_STR);
859 break;
860 }
861 }
862
863 /* copy the typed text from the redo buffer into the stuff buffer */
864 copy_redo(FALSE);
865 block_redo = TRUE;
866 return OK;
867}
868
869 void
870stop_redo_ins()
871{
872 block_redo = FALSE;
873}
874
875/*
876 * Initialize typebuf.tb_buf to point to typebuf_init.
877 * alloc() cannot be used here: In out-of-memory situations it would
878 * be impossible to type anything.
879 */
880 static void
881init_typebuf()
882{
883 if (typebuf.tb_buf == NULL)
884 {
885 typebuf.tb_buf = typebuf_init;
886 typebuf.tb_noremap = noremapbuf_init;
887 typebuf.tb_buflen = TYPELEN_INIT;
888 typebuf.tb_len = 0;
889 typebuf.tb_off = 0;
890 typebuf.tb_change_cnt = 1;
891 }
892}
893
894/*
895 * insert a string in position 'offset' in the typeahead buffer (for "@r"
896 * and ":normal" command, vgetorpeek() and check_termcode())
897 *
898 * If noremap is REMAP_YES, new string can be mapped again.
899 * If noremap is REMAP_NONE, new string cannot be mapped again.
Bram Moolenaarf4b8e572004-06-24 15:53:16 +0000900 * If noremap is REMAP_SKIP, fist char of new string cannot be mapped again,
901 * but abbreviations are allowed.
Bram Moolenaar071d4272004-06-13 20:20:40 +0000902 * If noremap is REMAP_SCRIPT, new string cannot be mapped again, except for
903 * script-local mappings.
904 * If noremap is > 0, that many characters of the new string cannot be mapped.
905 *
906 * If nottyped is TRUE, the string does not return KeyTyped (don't use when
907 * offset is non-zero!).
908 *
909 * If silent is TRUE, cmd_silent is set when the characters are obtained.
910 *
911 * return FAIL for failure, OK otherwise
912 */
913 int
914ins_typebuf(str, noremap, offset, nottyped, silent)
915 char_u *str;
916 int noremap;
917 int offset;
918 int nottyped;
919 int silent;
920{
921 char_u *s1, *s2;
922 int newlen;
923 int addlen;
924 int i;
925 int newoff;
926 int val;
927 int nrm;
928
929 init_typebuf();
930 if (++typebuf.tb_change_cnt == 0)
931 typebuf.tb_change_cnt = 1;
932
933 addlen = (int)STRLEN(str);
934 /*
935 * Easy case: there is room in front of typebuf.tb_buf[typebuf.tb_off]
936 */
937 if (offset == 0 && addlen <= typebuf.tb_off)
938 {
939 typebuf.tb_off -= addlen;
940 mch_memmove(typebuf.tb_buf + typebuf.tb_off, str, (size_t)addlen);
941 }
942 /*
943 * Need to allocate new buffer.
944 * In typebuf.tb_buf there must always be room for 3 * MAXMAPLEN + 4
945 * characters. We add some extra room to avoid having to allocate too
946 * often.
947 */
948 else
949 {
950 newoff = MAXMAPLEN + 4;
951 newlen = typebuf.tb_len + addlen + newoff + 4 * (MAXMAPLEN + 4);
952 if (newlen < 0) /* string is getting too long */
953 {
954 EMSG(_(e_toocompl)); /* also calls flush_buffers */
955 setcursor();
956 return FAIL;
957 }
958 s1 = alloc(newlen);
959 if (s1 == NULL) /* out of memory */
960 return FAIL;
961 s2 = alloc(newlen);
962 if (s2 == NULL) /* out of memory */
963 {
964 vim_free(s1);
965 return FAIL;
966 }
967 typebuf.tb_buflen = newlen;
968
969 /* copy the old chars, before the insertion point */
970 mch_memmove(s1 + newoff, typebuf.tb_buf + typebuf.tb_off,
971 (size_t)offset);
972 /* copy the new chars */
973 mch_memmove(s1 + newoff + offset, str, (size_t)addlen);
974 /* copy the old chars, after the insertion point, including the NUL at
975 * the end */
976 mch_memmove(s1 + newoff + offset + addlen,
977 typebuf.tb_buf + typebuf.tb_off + offset,
978 (size_t)(typebuf.tb_len - offset + 1));
979 if (typebuf.tb_buf != typebuf_init)
980 vim_free(typebuf.tb_buf);
981 typebuf.tb_buf = s1;
982
983 mch_memmove(s2 + newoff, typebuf.tb_noremap + typebuf.tb_off,
984 (size_t)offset);
985 mch_memmove(s2 + newoff + offset + addlen,
986 typebuf.tb_noremap + typebuf.tb_off + offset,
987 (size_t)(typebuf.tb_len - offset));
988 if (typebuf.tb_noremap != noremapbuf_init)
989 vim_free(typebuf.tb_noremap);
990 typebuf.tb_noremap = s2;
991
992 typebuf.tb_off = newoff;
993 }
994 typebuf.tb_len += addlen;
995
996 /* If noremap == REMAP_SCRIPT: do remap script-local mappings. */
997 if (noremap == REMAP_SCRIPT)
998 val = RM_SCRIPT;
Bram Moolenaarf4b8e572004-06-24 15:53:16 +0000999 else if (noremap == REMAP_SKIP)
1000 val = RM_ABBR;
Bram Moolenaar071d4272004-06-13 20:20:40 +00001001 else
1002 val = RM_NONE;
1003
1004 /*
1005 * Adjust typebuf.tb_noremap[] for the new characters:
1006 * If noremap == REMAP_NONE or REMAP_SCRIPT: new characters are
1007 * (sometimes) not remappable
1008 * If noremap == REMAP_YES: all the new characters are mappable
1009 * If noremap > 0: "noremap" characters are not remappable, the rest
1010 * mappable
1011 */
Bram Moolenaarf4b8e572004-06-24 15:53:16 +00001012 if (noremap == REMAP_SKIP)
1013 nrm = 1;
1014 else if (noremap < 0)
Bram Moolenaar071d4272004-06-13 20:20:40 +00001015 nrm = addlen;
1016 else
1017 nrm = noremap;
1018 for (i = 0; i < addlen; ++i)
1019 typebuf.tb_noremap[typebuf.tb_off + i + offset] =
1020 (--nrm >= 0) ? val : RM_YES;
1021
1022 /* tb_maplen and tb_silent only remember the length of mapped and/or
1023 * silent mappings at the start of the buffer, assuming that a mapped
1024 * sequence doesn't result in typed characters. */
1025 if (nottyped || typebuf.tb_maplen > offset)
1026 typebuf.tb_maplen += addlen;
1027 if (silent || typebuf.tb_silent > offset)
1028 {
1029 typebuf.tb_silent += addlen;
1030 cmd_silent = TRUE;
1031 }
1032 if (typebuf.tb_no_abbr_cnt && offset == 0) /* and not used for abbrev.s */
1033 typebuf.tb_no_abbr_cnt += addlen;
1034
1035 return OK;
1036}
1037
1038/*
1039 * Return TRUE if the typeahead buffer was changed (while waiting for a
1040 * character to arrive). Happens when a message was received from a client.
1041 * But check in a more generic way to avoid trouble: When "typebuf.tb_buf"
1042 * changed it was reallocated and the old pointer can no longer be used.
1043 * Or "typebuf.tb_off" may have been changed and we would overwrite characters
1044 * that was just added.
1045 */
1046 int
1047typebuf_changed(tb_change_cnt)
1048 int tb_change_cnt; /* old value of typebuf.tb_change_cnt */
1049{
1050 return (tb_change_cnt != 0 && (typebuf.tb_change_cnt != tb_change_cnt
1051#ifdef FEAT_CLIENTSERVER
1052 || received_from_client
1053#endif
1054 ));
1055}
1056
1057/*
1058 * Return TRUE if there are no characters in the typeahead buffer that have
1059 * not been typed (result from a mapping or come from ":normal").
1060 */
1061 int
1062typebuf_typed()
1063{
1064 return typebuf.tb_maplen == 0;
1065}
1066
1067/*
1068 * Return the number of characters that are mapped (or not typed).
1069 */
1070 int
1071typebuf_maplen()
1072{
1073 return typebuf.tb_maplen;
1074}
1075
1076/*
1077 * remove "len" characters from typebuf.tb_buf[typebuf.tb_off + offset]
1078 */
1079 void
1080del_typebuf(len, offset)
1081 int len;
1082 int offset;
1083{
1084 int i;
1085
1086 if (len == 0)
1087 return; /* nothing to do */
1088
1089 typebuf.tb_len -= len;
1090
1091 /*
1092 * Easy case: Just increase typebuf.tb_off.
1093 */
1094 if (offset == 0 && typebuf.tb_buflen - (typebuf.tb_off + len)
1095 >= 3 * MAXMAPLEN + 3)
1096 typebuf.tb_off += len;
1097 /*
1098 * Have to move the characters in typebuf.tb_buf[] and typebuf.tb_noremap[]
1099 */
1100 else
1101 {
1102 i = typebuf.tb_off + offset;
1103 /*
1104 * Leave some extra room at the end to avoid reallocation.
1105 */
1106 if (typebuf.tb_off > MAXMAPLEN)
1107 {
1108 mch_memmove(typebuf.tb_buf + MAXMAPLEN,
1109 typebuf.tb_buf + typebuf.tb_off, (size_t)offset);
1110 mch_memmove(typebuf.tb_noremap + MAXMAPLEN,
1111 typebuf.tb_noremap + typebuf.tb_off, (size_t)offset);
1112 typebuf.tb_off = MAXMAPLEN;
1113 }
1114 /* adjust typebuf.tb_buf (include the NUL at the end) */
1115 mch_memmove(typebuf.tb_buf + typebuf.tb_off + offset,
1116 typebuf.tb_buf + i + len,
1117 (size_t)(typebuf.tb_len - offset + 1));
1118 /* adjust typebuf.tb_noremap[] */
1119 mch_memmove(typebuf.tb_noremap + typebuf.tb_off + offset,
1120 typebuf.tb_noremap + i + len,
1121 (size_t)(typebuf.tb_len - offset));
1122 }
1123
1124 if (typebuf.tb_maplen > offset) /* adjust tb_maplen */
1125 {
1126 if (typebuf.tb_maplen < offset + len)
1127 typebuf.tb_maplen = offset;
1128 else
1129 typebuf.tb_maplen -= len;
1130 }
1131 if (typebuf.tb_silent > offset) /* adjust tb_silent */
1132 {
1133 if (typebuf.tb_silent < offset + len)
1134 typebuf.tb_silent = offset;
1135 else
1136 typebuf.tb_silent -= len;
1137 }
1138 if (typebuf.tb_no_abbr_cnt > offset) /* adjust tb_no_abbr_cnt */
1139 {
1140 if (typebuf.tb_no_abbr_cnt < offset + len)
1141 typebuf.tb_no_abbr_cnt = offset;
1142 else
1143 typebuf.tb_no_abbr_cnt -= len;
1144 }
1145
1146#ifdef FEAT_CLIENTSERVER
1147 /* Reset the flag that text received from a client was inserted in the
1148 * typeahead buffer. */
1149 received_from_client = FALSE;
1150#endif
1151 if (++typebuf.tb_change_cnt == 0)
1152 typebuf.tb_change_cnt = 1;
1153}
1154
1155/*
1156 * Write typed characters to script file.
1157 * If recording is on put the character in the recordbuffer.
1158 */
1159 static void
1160gotchars(s, len)
1161 char_u *s;
1162 int len;
1163{
1164 int c;
1165 char_u buf[2];
1166
1167 /* remember how many chars were last recorded */
1168 if (Recording)
1169 last_recorded_len += len;
1170
1171 buf[1] = NUL;
1172 while (len--)
1173 {
1174 /* Handle one byte at a time; no translation to be done. */
1175 c = *s++;
1176 updatescript(c);
1177
1178 if (Recording)
1179 {
1180 buf[0] = c;
1181 add_buff(&recordbuff, buf, 1L);
1182 }
1183 }
1184 may_sync_undo();
1185
1186#ifdef FEAT_EVAL
1187 /* output "debug mode" message next time in debug mode */
1188 debug_did_msg = FALSE;
1189#endif
1190
1191 /* Since characters have been typed, consider the following to be in
1192 * another mapping. Search string will be kept in history. */
1193 ++maptick;
1194}
1195
1196/*
1197 * Sync undo. Called when typed characters are obtained from the typeahead
1198 * buffer, or when a menu is used.
1199 * Do not sync:
1200 * - In Insert mode, unless cursor key has been used.
1201 * - While reading a script file.
1202 * - When no_u_sync is non-zero.
1203 */
1204 static void
1205may_sync_undo()
1206{
1207 if ((!(State & (INSERT + CMDLINE)) || arrow_used)
1208 && scriptin[curscript] == NULL && no_u_sync == 0)
1209 u_sync();
1210}
1211
1212/*
1213 * Make "typebuf" empty and allocate new buffers.
1214 * Returns FAIL when out of memory.
1215 */
1216 int
1217alloc_typebuf()
1218{
1219 typebuf.tb_buf = alloc(TYPELEN_INIT);
1220 typebuf.tb_noremap = alloc(TYPELEN_INIT);
1221 if (typebuf.tb_buf == NULL || typebuf.tb_noremap == NULL)
1222 {
1223 free_typebuf();
1224 return FAIL;
1225 }
1226 typebuf.tb_buflen = TYPELEN_INIT;
1227 typebuf.tb_off = 0;
1228 typebuf.tb_len = 0;
1229 typebuf.tb_maplen = 0;
1230 typebuf.tb_silent = 0;
1231 typebuf.tb_no_abbr_cnt = 0;
1232 if (++typebuf.tb_change_cnt == 0)
1233 typebuf.tb_change_cnt = 1;
1234 return OK;
1235}
1236
1237/*
1238 * Free the buffers of "typebuf".
1239 */
1240 void
1241free_typebuf()
1242{
1243 vim_free(typebuf.tb_buf);
1244 vim_free(typebuf.tb_noremap);
1245}
1246
1247/*
1248 * When doing ":so! file", the current typeahead needs to be saved, and
1249 * restored when "file" has been read completely.
1250 */
1251static typebuf_T saved_typebuf[NSCRIPT];
1252
1253 int
1254save_typebuf()
1255{
1256 init_typebuf();
1257 saved_typebuf[curscript] = typebuf;
1258 /* If out of memory: restore typebuf and close file. */
1259 if (alloc_typebuf() == FAIL)
1260 {
1261 closescript();
1262 return FAIL;
1263 }
1264 return OK;
1265}
1266
1267#if defined(FEAT_EVAL) || defined(FEAT_EX_EXTRA) || defined(PROTO)
1268
1269/*
1270 * Save all three kinds of typeahead, so that the user must type at a prompt.
1271 */
1272 void
1273save_typeahead(tp)
1274 tasave_T *tp;
1275{
1276 tp->save_typebuf = typebuf;
1277 tp->typebuf_valid = (alloc_typebuf() == OK);
1278 if (!tp->typebuf_valid)
1279 typebuf = tp->save_typebuf;
1280
1281 tp->save_stuffbuff = stuffbuff;
1282 stuffbuff.bh_first.b_next = NULL;
1283# ifdef USE_INPUT_BUF
1284 tp->save_inputbuf = get_input_buf();
1285# endif
1286}
1287
1288/*
1289 * Restore the typeahead to what it was before calling save_typeahead().
1290 * The allocated memory is freed, can only be called once!
1291 */
1292 void
1293restore_typeahead(tp)
1294 tasave_T *tp;
1295{
1296 if (tp->typebuf_valid)
1297 {
1298 free_typebuf();
1299 typebuf = tp->save_typebuf;
1300 }
1301
1302 free_buff(&stuffbuff);
1303 stuffbuff = tp->save_stuffbuff;
1304# ifdef USE_INPUT_BUF
1305 set_input_buf(tp->save_inputbuf);
1306# endif
1307}
1308#endif
1309
1310/*
1311 * Open a new script file for the ":source!" command.
1312 */
1313 void
1314openscript(name, directly)
1315 char_u *name;
1316 int directly; /* when TRUE execute directly */
1317{
1318 if (curscript + 1 == NSCRIPT)
1319 {
1320 EMSG(_(e_nesting));
1321 return;
1322 }
1323
1324 if (scriptin[curscript] != NULL) /* already reading script */
1325 ++curscript;
1326 /* use NameBuff for expanded name */
1327 expand_env(name, NameBuff, MAXPATHL);
1328 if ((scriptin[curscript] = mch_fopen((char *)NameBuff, READBIN)) == NULL)
1329 {
1330 EMSG2(_(e_notopen), name);
1331 if (curscript)
1332 --curscript;
1333 return;
1334 }
1335 if (save_typebuf() == FAIL)
1336 return;
1337
1338 /*
1339 * Execute the commands from the file right now when using ":source!"
1340 * after ":global" or ":argdo" or in a loop. Also when another command
1341 * follows. This means the display won't be updated. Don't do this
1342 * always, "make test" would fail.
1343 */
1344 if (directly)
1345 {
1346 oparg_T oa;
1347 int oldcurscript;
1348 int save_State = State;
1349 int save_restart_edit = restart_edit;
1350 int save_insertmode = p_im;
1351 int save_finish_op = finish_op;
1352 int save_msg_scroll = msg_scroll;
1353
1354 State = NORMAL;
1355 msg_scroll = FALSE; /* no msg scrolling in Normal mode */
1356 restart_edit = 0; /* don't go to Insert mode */
1357 p_im = FALSE; /* don't use 'insertmode' */
1358 clear_oparg(&oa);
1359 finish_op = FALSE;
1360
1361 oldcurscript = curscript;
1362 do
1363 {
1364 update_topline_cursor(); /* update cursor position and topline */
1365 normal_cmd(&oa, FALSE); /* execute one command */
1366 vpeekc(); /* check for end of file */
1367 }
1368 while (scriptin[oldcurscript] != NULL);
1369
1370 State = save_State;
1371 msg_scroll = save_msg_scroll;
1372 restart_edit = save_restart_edit;
1373 p_im = save_insertmode;
1374 finish_op = save_finish_op;
1375 }
1376}
1377
1378/*
1379 * Close the currently active input script.
1380 */
1381 static void
1382closescript()
1383{
1384 free_typebuf();
1385 typebuf = saved_typebuf[curscript];
1386
1387 fclose(scriptin[curscript]);
1388 scriptin[curscript] = NULL;
1389 if (curscript > 0)
1390 --curscript;
1391}
1392
1393#if defined(FEAT_INS_EXPAND) || defined(PROTO)
1394/*
1395 * Return TRUE when reading keys from a script file.
1396 */
1397 int
1398using_script()
1399{
1400 return scriptin[curscript] != NULL;
1401}
1402#endif
1403
1404/*
1405 * updatescipt() is called when a character can be written into the script file
1406 * or when we have waited some time for a character (c == 0)
1407 *
1408 * All the changed memfiles are synced if c == 0 or when the number of typed
1409 * characters reaches 'updatecount' and 'updatecount' is non-zero.
1410 */
1411 void
1412updatescript(c)
1413 int c;
1414{
1415 static int count = 0;
1416
1417 if (c && scriptout)
1418 putc(c, scriptout);
1419 if (c == 0 || (p_uc > 0 && ++count >= p_uc))
1420 {
1421 ml_sync_all(c == 0, TRUE);
1422 count = 0;
1423 }
1424}
1425
1426#define KL_PART_KEY -1 /* keylen value for incomplete key-code */
1427#define KL_PART_MAP -2 /* keylen value for incomplete mapping */
1428
1429static int old_char = -1; /* character put back by vungetc() */
1430static int old_mod_mask; /* mod_mask for ungotten character */
1431
1432/*
1433 * Get the next input character.
1434 * Can return a special key or a multi-byte character.
1435 * Can return NUL when called recursively, use safe_vgetc() if that's not
1436 * wanted.
1437 * This translates escaped K_SPECIAL and CSI bytes to a K_SPECIAL or CSI byte.
1438 * Collects the bytes of a multibyte character into the whole character.
1439 * Returns the modifers in the global "mod_mask".
1440 */
1441 int
1442vgetc()
1443{
1444 int c, c2;
1445#ifdef FEAT_MBYTE
1446 int n;
1447 char_u buf[MB_MAXBYTES];
1448 int i;
1449#endif
1450
1451 /*
1452 * If a character was put back with vungetc, it was already processed.
1453 * Return it directly.
1454 */
1455 if (old_char != -1)
1456 {
1457 c = old_char;
1458 old_char = -1;
1459 mod_mask = old_mod_mask;
1460 return c;
1461 }
1462
1463 mod_mask = 0x0;
1464 last_recorded_len = 0;
1465 for (;;) /* this is done twice if there are modifiers */
1466 {
1467 if (mod_mask) /* no mapping after modifier has been read */
1468 {
1469 ++no_mapping;
1470 ++allow_keys;
1471 }
1472 c = vgetorpeek(TRUE);
1473 if (mod_mask)
1474 {
1475 --no_mapping;
1476 --allow_keys;
1477 }
1478
1479 /* Get two extra bytes for special keys */
1480 if (c == K_SPECIAL
1481#ifdef FEAT_GUI
1482 || c == CSI
1483#endif
1484 )
1485 {
1486 ++no_mapping;
1487 c2 = vgetorpeek(TRUE); /* no mapping for these chars */
1488 c = vgetorpeek(TRUE);
1489 --no_mapping;
1490 if (c2 == KS_MODIFIER)
1491 {
1492 mod_mask = c;
1493 continue;
1494 }
1495 c = TO_SPECIAL(c2, c);
1496
1497#if defined(FEAT_GUI_W32) && defined(FEAT_MENU) && defined(FEAT_TEAROFF)
1498 /* Handle K_TEAROFF here, the caller of vgetc() doesn't need to
1499 * know that a menu was torn off */
1500 if (c == K_TEAROFF)
1501 {
1502 char_u name[200];
1503 int i;
1504
1505 /* get menu path, it ends with a <CR> */
1506 for (i = 0; (c = vgetorpeek(TRUE)) != '\r'; )
1507 {
1508 name[i] = c;
1509 if (i < 199)
1510 ++i;
1511 }
1512 name[i] = NUL;
1513 gui_make_tearoff(name);
1514 continue;
1515 }
1516#endif
Bram Moolenaar1cd871b2004-12-19 22:46:22 +00001517#if defined(HAVE_GTK2) && defined(FEAT_MENU)
Bram Moolenaar293ee4d2004-12-09 21:34:53 +00001518 /* GTK: <F10> normally selects the menu, but it's passed until
1519 * here to allow mapping it. Intercept and invoke the GTK
1520 * behavior if it's not mapped. */
1521 if (c == K_F10 && gui.menubar != NULL)
1522 {
1523 gtk_menu_shell_select_first(GTK_MENU_SHELL(gui.menubar), FALSE);
1524 continue;
1525 }
1526#endif
1527
Bram Moolenaar071d4272004-06-13 20:20:40 +00001528#ifdef FEAT_GUI
1529 /* Translate K_CSI to CSI. The special key is only used to avoid
1530 * it being recognized as the start of a special key. */
1531 if (c == K_CSI)
1532 c = CSI;
1533#endif
1534 }
1535#ifdef MSDOS
1536 /*
1537 * If K_NUL was typed, it is replaced by K_NUL, 3 in mch_inchar().
1538 * Delete the 3 here.
1539 */
1540 else if (c == K_NUL && vpeekc() == 3)
1541 (void)vgetorpeek(TRUE);
1542#endif
1543
1544 if (c >= FIRST_KEYPAD && c <= LAST_KEYPAD)
1545 {
1546 /* a keypad key was not mapped, use it like its ASCII equivalent */
1547 switch (c)
1548 {
1549 case K_KPLUS: c = '+'; break;
1550 case K_KMINUS: c = '-'; break;
1551 case K_KDIVIDE: c = '/'; break;
1552 case K_KMULTIPLY: c = '*'; break;
1553 case K_KENTER: c = CAR; break;
Bram Moolenaar293ee4d2004-12-09 21:34:53 +00001554 case K_KPOINT:
1555#ifdef WIN32
1556 /* Can be either '.' or a ',', *
1557 * depending on the type of keypad. */
1558 c = MapVirtualKey(VK_DECIMAL, 2); break;
1559#else
1560 c = '.'; break;
1561#endif
Bram Moolenaar071d4272004-06-13 20:20:40 +00001562 case K_K0: c = '0'; break;
1563 case K_K1: c = '1'; break;
1564 case K_K2: c = '2'; break;
1565 case K_K3: c = '3'; break;
1566 case K_K4: c = '4'; break;
1567 case K_K5: c = '5'; break;
1568 case K_K6: c = '6'; break;
1569 case K_K7: c = '7'; break;
1570 case K_K8: c = '8'; break;
1571 case K_K9: c = '9'; break;
1572 }
1573 }
1574
1575#ifdef FEAT_MBYTE
1576 /* For a multi-byte character get all the bytes and return the
1577 * converted character.
1578 * Note: This will loop until enough bytes are received!
1579 */
1580 if (has_mbyte && (n = MB_BYTE2LEN_CHECK(c)) > 1)
1581 {
1582 ++no_mapping;
1583 buf[0] = c;
1584 for (i = 1; i < n; ++i)
1585 {
1586 buf[i] = vgetorpeek(TRUE);
1587 if (buf[i] == K_SPECIAL
1588#ifdef FEAT_GUI
1589 || buf[i] == CSI
1590#endif
1591 )
1592 {
1593 /* Must be a K_SPECIAL - KS_SPECIAL - KE_FILLER sequence,
1594 * which represents a K_SPECIAL (0x80),
1595 * or a CSI - KS_EXTRA - KE_CSI sequence, which represents
1596 * a CSI (0x9B),
1597 * of a K_SPECIAL - KS_EXTRA - KE_CSI, which is CSI too. */
1598 c = vgetorpeek(TRUE);
1599 if (vgetorpeek(TRUE) == (int)KE_CSI && c == KS_EXTRA)
1600 buf[i] = CSI;
1601 }
1602 }
1603 --no_mapping;
1604 c = (*mb_ptr2char)(buf);
1605 }
1606#endif
1607
1608 return c;
1609 }
1610}
1611
1612/*
1613 * Like vgetc(), but never return a NUL when called recursively, get a key
1614 * directly from the user (ignoring typeahead).
1615 */
1616 int
1617safe_vgetc()
1618{
1619 int c;
1620
1621 c = vgetc();
1622 if (c == NUL)
1623 c = get_keystroke();
1624 return c;
1625}
1626
1627/*
1628 * Check if a character is available, such that vgetc() will not block.
1629 * If the next character is a special character or multi-byte, the returned
1630 * character is not valid!.
1631 */
1632 int
1633vpeekc()
1634{
1635 if (old_char != -1)
1636 return old_char;
1637 return vgetorpeek(FALSE);
1638}
1639
1640#if defined(FEAT_TERMRESPONSE) || defined(PROTO)
1641/*
1642 * Like vpeekc(), but don't allow mapping. Do allow checking for terminal
1643 * codes.
1644 */
1645 int
1646vpeekc_nomap()
1647{
1648 int c;
1649
1650 ++no_mapping;
1651 ++allow_keys;
1652 c = vpeekc();
1653 --no_mapping;
1654 --allow_keys;
1655 return c;
1656}
1657#endif
1658
1659#if defined(FEAT_INS_EXPAND) || defined(PROTO)
1660/*
1661 * Check if any character is available, also half an escape sequence.
1662 * Trick: when no typeahead found, but there is something in the typeahead
1663 * buffer, it must be an ESC that is recognized as the start of a key code.
1664 */
1665 int
1666vpeekc_any()
1667{
1668 int c;
1669
1670 c = vpeekc();
1671 if (c == NUL && typebuf.tb_len > 0)
1672 c = ESC;
1673 return c;
1674}
1675#endif
1676
1677/*
1678 * Call vpeekc() without causing anything to be mapped.
1679 * Return TRUE if a character is available, FALSE otherwise.
1680 */
1681 int
1682char_avail()
1683{
1684 int retval;
1685
1686 ++no_mapping;
1687 retval = vpeekc();
1688 --no_mapping;
1689 return (retval != NUL);
1690}
1691
1692 void
1693vungetc(c) /* unget one character (can only be done once!) */
1694 int c;
1695{
1696 old_char = c;
1697 old_mod_mask = mod_mask;
1698}
1699
1700/*
1701 * get a character:
1702 * 1. from the stuffbuffer
1703 * This is used for abbreviated commands like "D" -> "d$".
1704 * Also used to redo a command for ".".
1705 * 2. from the typeahead buffer
1706 * Stores text obtained previously but not used yet.
1707 * Also stores the result of mappings.
1708 * Also used for the ":normal" command.
1709 * 3. from the user
1710 * This may do a blocking wait if "advance" is TRUE.
1711 *
1712 * if "advance" is TRUE (vgetc()):
1713 * really get the character.
1714 * KeyTyped is set to TRUE in the case the user typed the key.
1715 * KeyStuffed is TRUE if the character comes from the stuff buffer.
1716 * if "advance" is FALSE (vpeekc()):
1717 * just look whether there is a character available.
1718 *
1719 * When "no_mapping" is zero, checks for mappings in the current mode.
1720 * Only returns one byte (of a multi-byte character).
1721 * K_SPECIAL and CSI may be escaped, need to get two more bytes then.
1722 */
1723 static int
1724vgetorpeek(advance)
1725 int advance;
1726{
1727 int c, c1;
1728 int keylen;
1729 char_u *s;
1730 mapblock_T *mp;
1731#ifdef FEAT_LOCALMAP
1732 mapblock_T *mp2;
1733#endif
1734 mapblock_T *mp_match;
1735 int mp_match_len = 0;
1736 int timedout = FALSE; /* waited for more than 1 second
1737 for mapping to complete */
1738 int mapdepth = 0; /* check for recursive mapping */
1739 int mode_deleted = FALSE; /* set when mode has been deleted */
1740 int local_State;
1741 int mlen;
1742 int max_mlen;
1743#ifdef FEAT_CMDL_INFO
1744 int i;
1745 int new_wcol, new_wrow;
1746#endif
1747#ifdef FEAT_GUI
1748# ifdef FEAT_MENU
1749 int idx;
1750# endif
1751 int shape_changed = FALSE; /* adjusted cursor shape */
1752#endif
1753 int n;
1754#ifdef FEAT_LANGMAP
1755 int nolmaplen;
1756#endif
1757 int old_wcol, old_wrow;
1758
1759 /*
1760 * This function doesn't work very well when called recursively. This may
1761 * happen though, because of:
1762 * 1. The call to add_to_showcmd(). char_avail() is then used to check if
1763 * there is a character available, which calls this function. In that
1764 * case we must return NUL, to indicate no character is available.
1765 * 2. A GUI callback function writes to the screen, causing a
1766 * wait_return().
1767 * Using ":normal" can also do this, but it saves the typeahead buffer,
1768 * thus it should be OK. But don't get a key from the user then.
1769 */
1770 if (vgetc_busy
1771#ifdef FEAT_EX_EXTRA
1772 && ex_normal_busy == 0
1773#endif
1774 )
1775 return NUL;
1776
1777 local_State = get_real_state();
1778
1779 vgetc_busy = TRUE;
1780
1781 if (advance)
1782 KeyStuffed = FALSE;
1783
1784 init_typebuf();
1785 start_stuff();
1786 if (advance && typebuf.tb_maplen == 0)
1787 Exec_reg = FALSE;
1788 do
1789 {
1790/*
1791 * get a character: 1. from the stuffbuffer
1792 */
1793 if (typeahead_char != 0)
1794 {
1795 c = typeahead_char;
1796 if (advance)
1797 typeahead_char = 0;
1798 }
1799 else
1800 c = read_stuff(advance);
1801 if (c != NUL && !got_int)
1802 {
1803 if (advance)
1804 {
1805 /* KeyTyped = FALSE; When the command that stuffed something
1806 * was typed, behave like the stuffed command was typed.
1807 * needed for CTRL-W CTRl-] to open a fold, for example. */
1808 KeyStuffed = TRUE;
1809 }
1810 if (typebuf.tb_no_abbr_cnt == 0)
1811 typebuf.tb_no_abbr_cnt = 1; /* no abbreviations now */
1812 }
1813 else
1814 {
1815 /*
1816 * Loop until we either find a matching mapped key, or we
1817 * are sure that it is not a mapped key.
1818 * If a mapped key sequence is found we go back to the start to
1819 * try re-mapping.
1820 */
1821 for (;;)
1822 {
1823 /*
1824 * ui_breakcheck() is slow, don't use it too often when
1825 * inside a mapping. But call it each time for typed
1826 * characters.
1827 */
1828 if (typebuf.tb_maplen)
1829 line_breakcheck();
1830 else
1831 ui_breakcheck(); /* check for CTRL-C */
1832 keylen = 0;
1833 if (got_int)
1834 {
1835 /* flush all input */
1836 c = inchar(typebuf.tb_buf, typebuf.tb_buflen - 1, 0L,
1837 typebuf.tb_change_cnt);
1838 /*
1839 * If inchar() returns TRUE (script file was active) or we
1840 * are inside a mapping, get out of insert mode.
1841 * Otherwise we behave like having gotten a CTRL-C.
1842 * As a result typing CTRL-C in insert mode will
1843 * really insert a CTRL-C.
1844 */
1845 if ((c || typebuf.tb_maplen)
1846 && (State & (INSERT + CMDLINE)))
1847 c = ESC;
1848 else
1849 c = Ctrl_C;
1850 flush_buffers(TRUE); /* flush all typeahead */
1851
1852 /* Also record this character, it might be needed to
1853 * get out of Insert mode. */
1854 *typebuf.tb_buf = c;
1855 gotchars(typebuf.tb_buf, 1);
1856 cmd_silent = FALSE;
1857
1858 break;
1859 }
1860 else if (typebuf.tb_len > 0)
1861 {
1862 /*
1863 * Check for a mappable key sequence.
1864 * Walk through one maphash[] list until we find an
1865 * entry that matches.
1866 *
1867 * Don't look for mappings if:
1868 * - no_mapping set: mapping disabled (e.g. for CTRL-V)
1869 * - maphash_valid not set: no mappings present.
1870 * - typebuf.tb_buf[typebuf.tb_off] should not be remapped
1871 * - in insert or cmdline mode and 'paste' option set
1872 * - waiting for "hit return to continue" and CR or SPACE
1873 * typed
1874 * - waiting for a char with --more--
1875 * - in Ctrl-X mode, and we get a valid char for that mode
1876 */
1877 mp = NULL;
1878 max_mlen = 0;
1879 c1 = typebuf.tb_buf[typebuf.tb_off];
1880 if (no_mapping == 0 && maphash_valid
1881 && (no_zero_mapping == 0 || c1 != '0')
1882 && (typebuf.tb_maplen == 0
1883 || (p_remap
Bram Moolenaarf4b8e572004-06-24 15:53:16 +00001884 && (typebuf.tb_noremap[typebuf.tb_off]
1885 & (RM_NONE|RM_ABBR)) == 0))
Bram Moolenaar071d4272004-06-13 20:20:40 +00001886 && !(p_paste && (State & (INSERT + CMDLINE)))
1887 && !(State == HITRETURN && (c1 == CAR || c1 == ' '))
1888 && State != ASKMORE
1889 && State != CONFIRM
1890#ifdef FEAT_INS_EXPAND
1891 && !((ctrl_x_mode != 0 && vim_is_ctrl_x_key(c1))
1892 || ((continue_status & CONT_LOCAL)
1893 && (c1 == Ctrl_N || c1 == Ctrl_P)))
1894#endif
1895 )
1896 {
1897#ifdef FEAT_LANGMAP
1898 if (c1 == K_SPECIAL)
1899 nolmaplen = 2;
1900 else
1901 {
1902 LANGMAP_ADJUST(c1, TRUE);
1903 nolmaplen = 0;
1904 }
1905#endif
1906#ifdef FEAT_LOCALMAP
1907 /* First try buffer-local mappings. */
1908 mp = curbuf->b_maphash[MAP_HASH(local_State, c1)];
1909 mp2 = maphash[MAP_HASH(local_State, c1)];
1910 if (mp == NULL)
1911 {
1912 mp = mp2;
1913 mp2 = NULL;
1914 }
1915#else
1916 mp = maphash[MAP_HASH(local_State, c1)];
1917#endif
1918 /*
1919 * Loop until a partly matching mapping is found or
1920 * all (local) mappings have been checked.
1921 * The longest full match is remembered in "mp_match".
1922 * A full match is only accepted if there is no partly
1923 * match, so "aa" and "aaa" can both be mapped.
1924 */
1925 mp_match = NULL;
1926 mp_match_len = 0;
1927 for ( ; mp != NULL;
1928#ifdef FEAT_LOCALMAP
1929 mp->m_next == NULL ? (mp = mp2, mp2 = NULL) :
1930#endif
1931 (mp = mp->m_next))
1932 {
1933 /*
1934 * Only consider an entry if the first character
1935 * matches and it is for the current state.
1936 * Skip ":lmap" mappings if keys were mapped.
1937 */
1938 if (mp->m_keys[0] == c1
1939 && (mp->m_mode & local_State)
1940 && ((mp->m_mode & LANGMAP) == 0
1941 || typebuf.tb_maplen == 0))
1942 {
1943#ifdef FEAT_LANGMAP
1944 int nomap = nolmaplen;
1945 int c2;
1946#endif
1947 /* find the match length of this mapping */
1948 for (mlen = 1; mlen < typebuf.tb_len; ++mlen)
1949 {
1950#ifdef FEAT_LANGMAP
1951 c2 = typebuf.tb_buf[typebuf.tb_off + mlen];
1952 if (nomap > 0)
1953 --nomap;
1954 else if (c2 == K_SPECIAL)
1955 nomap = 2;
1956 else
1957 LANGMAP_ADJUST(c2, TRUE);
1958 if (mp->m_keys[mlen] != c2)
1959#else
1960 if (mp->m_keys[mlen] !=
1961 typebuf.tb_buf[typebuf.tb_off + mlen])
1962#endif
1963 break;
1964 }
1965
1966#ifdef FEAT_MBYTE
1967 /* Don't allow mapping the first byte(s) of a
1968 * multi-byte char. Happens when mapping
1969 * <M-a> and then changing 'encoding'. */
1970 if (has_mbyte && MB_BYTE2LEN(c1)
1971 > (*mb_ptr2len_check)(mp->m_keys))
1972 mlen = 0;
1973#endif
1974 /*
1975 * Check an entry whether it matches.
1976 * - Full match: mlen == keylen
1977 * - Partly match: mlen == typebuf.tb_len
1978 */
1979 keylen = mp->m_keylen;
1980 if (mlen == keylen
1981 || (mlen == typebuf.tb_len
1982 && typebuf.tb_len < keylen))
1983 {
1984 /*
1985 * If only script-local mappings are
1986 * allowed, check if the mapping starts
1987 * with K_SNR.
1988 */
1989 s = typebuf.tb_noremap + typebuf.tb_off;
1990 if (*s == RM_SCRIPT
1991 && (mp->m_keys[0] != K_SPECIAL
1992 || mp->m_keys[1] != KS_EXTRA
1993 || mp->m_keys[2]
1994 != (int)KE_SNR))
1995 continue;
1996 /*
1997 * If one of the typed keys cannot be
1998 * remapped, skip the entry.
1999 */
2000 for (n = mlen; --n >= 0; )
Bram Moolenaarf4b8e572004-06-24 15:53:16 +00002001 if (*s++ & (RM_NONE|RM_ABBR))
Bram Moolenaar071d4272004-06-13 20:20:40 +00002002 break;
2003 if (n >= 0)
2004 continue;
2005
2006 if (keylen > typebuf.tb_len)
2007 {
2008 if (!timedout)
2009 {
2010 /* break at a partly match */
2011 keylen = KL_PART_MAP;
2012 break;
2013 }
2014 }
2015 else if (keylen > mp_match_len)
2016 {
2017 /* found a longer match */
2018 mp_match = mp;
2019 mp_match_len = keylen;
2020 }
2021 }
2022 else
2023 /* No match; may have to check for
2024 * termcode at next character. */
2025 if (max_mlen < mlen)
2026 max_mlen = mlen;
2027 }
2028 }
2029
2030 /* If no partly match found, use the longest full
2031 * match. */
2032 if (keylen != KL_PART_MAP)
2033 {
2034 mp = mp_match;
2035 keylen = mp_match_len;
2036 }
2037 }
2038
2039 /* Check for match with 'pastetoggle' */
2040 if (*p_pt != NUL && mp == NULL && (State & (INSERT|NORMAL)))
2041 {
2042 for (mlen = 0; mlen < typebuf.tb_len && p_pt[mlen];
2043 ++mlen)
2044 if (p_pt[mlen] != typebuf.tb_buf[typebuf.tb_off
2045 + mlen])
2046 break;
2047 if (p_pt[mlen] == NUL) /* match */
2048 {
2049 /* write chars to script file(s) */
2050 if (mlen > typebuf.tb_maplen)
2051 gotchars(typebuf.tb_buf + typebuf.tb_off
2052 + typebuf.tb_maplen,
2053 mlen - typebuf.tb_maplen);
2054
2055 del_typebuf(mlen, 0); /* remove the chars */
2056 set_option_value((char_u *)"paste",
2057 (long)!p_paste, NULL, 0);
2058 if (!(State & INSERT))
2059 {
2060 msg_col = 0;
2061 msg_row = Rows - 1;
2062 msg_clr_eos(); /* clear ruler */
2063 }
2064 showmode();
2065 setcursor();
2066 continue;
2067 }
2068 /* Need more chars for partly match. */
2069 if (mlen == typebuf.tb_len)
2070 keylen = KL_PART_MAP;
2071 else if (max_mlen < mlen)
2072 /* no match, may have to check for termcode at
2073 * next character */
2074 max_mlen = mlen + 1;
2075 }
2076
2077 if ((mp == NULL || max_mlen >= mp_match_len)
2078 && keylen != KL_PART_MAP)
2079 {
2080 /*
2081 * When no matching mapping found or found a
2082 * non-matching mapping that matches at least what the
2083 * matching mapping matched:
2084 * Check if we have a terminal code, when:
2085 * mapping is allowed,
2086 * keys have not been mapped,
2087 * and not an ESC sequence, not in insert mode or
2088 * p_ek is on,
2089 * and when not timed out,
2090 */
2091 if ((no_mapping == 0 || allow_keys != 0)
2092 && (typebuf.tb_maplen == 0
2093 || (p_remap && typebuf.tb_noremap[
2094 typebuf.tb_off] == RM_YES))
2095 && !timedout)
2096 {
2097 keylen = check_termcode(max_mlen + 1, NULL, 0);
2098
2099 /*
2100 * When getting a partial match, but the last
2101 * characters were not typed, don't wait for a
2102 * typed character to complete the termcode.
2103 * This helps a lot when a ":normal" command ends
2104 * in an ESC.
2105 */
2106 if (keylen < 0
2107 && typebuf.tb_len == typebuf.tb_maplen)
2108 keylen = 0;
2109 }
2110 else
2111 keylen = 0;
2112 if (keylen == 0) /* no matching terminal code */
2113 {
2114#ifdef AMIGA /* check for window bounds report */
2115 if (typebuf.tb_maplen == 0 && (typebuf.tb_buf[
2116 typebuf.tb_off] & 0xff) == CSI)
2117 {
2118 for (s = typebuf.tb_buf + typebuf.tb_off + 1;
2119 s < typebuf.tb_buf + typebuf.tb_off
2120 + typebuf.tb_len
2121 && (VIM_ISDIGIT(*s) || *s == ';'
2122 || *s == ' ');
2123 ++s)
2124 ;
2125 if (*s == 'r' || *s == '|') /* found one */
2126 {
2127 del_typebuf((int)(s + 1 -
2128 (typebuf.tb_buf + typebuf.tb_off)), 0);
2129 /* get size and redraw screen */
2130 shell_resized();
2131 continue;
2132 }
2133 if (*s == NUL) /* need more characters */
2134 keylen = KL_PART_KEY;
2135 }
2136 if (keylen >= 0)
2137#endif
2138 /* When there was a matching mapping and no
2139 * termcode could be replaced after another one,
2140 * use that mapping. */
2141 if (mp == NULL)
2142 {
2143/*
2144 * get a character: 2. from the typeahead buffer
2145 */
2146 c = typebuf.tb_buf[typebuf.tb_off] & 255;
2147 if (advance) /* remove chars from tb_buf */
2148 {
2149 cmd_silent = (typebuf.tb_silent > 0);
2150 if (typebuf.tb_maplen > 0)
2151 KeyTyped = FALSE;
2152 else
2153 {
2154 KeyTyped = TRUE;
2155 /* write char to script file(s) */
2156 gotchars(typebuf.tb_buf
2157 + typebuf.tb_off, 1);
2158 }
2159 KeyNoremap = (typebuf.tb_noremap[
Bram Moolenaarf4b8e572004-06-24 15:53:16 +00002160 typebuf.tb_off]
2161 & (RM_NONE|RM_SCRIPT));
Bram Moolenaar071d4272004-06-13 20:20:40 +00002162 del_typebuf(1, 0);
2163 }
2164 break; /* got character, break for loop */
2165 }
2166 }
2167 if (keylen > 0) /* full matching terminal code */
2168 {
2169#if defined(FEAT_GUI) && defined(FEAT_MENU)
2170 if (typebuf.tb_buf[typebuf.tb_off] == K_SPECIAL
2171 && typebuf.tb_buf[typebuf.tb_off + 1]
2172 == KS_MENU)
2173 {
2174 /*
2175 * Using a menu may cause a break in undo!
2176 * It's like using gotchars(), but without
2177 * recording or writing to a script file.
2178 */
2179 may_sync_undo();
2180 del_typebuf(3, 0);
2181 idx = get_menu_index(current_menu, local_State);
2182 if (idx != MENU_INDEX_INVALID)
2183 {
2184# ifdef FEAT_VISUAL
2185 /*
2186 * In Select mode, a Visual mode menu is
2187 * used. Switch to Visual mode
2188 * temporarily. Append K_SELECT to switch
2189 * back to Select mode.
2190 */
2191 if (VIsual_active && VIsual_select)
2192 {
2193 VIsual_select = FALSE;
2194 (void)ins_typebuf(K_SELECT_STRING,
2195 REMAP_NONE, 0, TRUE, FALSE);
2196 }
2197# endif
2198 ins_typebuf(current_menu->strings[idx],
2199 current_menu->noremap[idx],
2200 0, TRUE,
2201 current_menu->silent[idx]);
2202 }
2203 }
2204#endif /* FEAT_GUI */
2205 continue; /* try mapping again */
2206 }
2207
2208 /* Partial match: get some more characters. When a
2209 * matching mapping was found use that one. */
2210 if (mp == NULL || keylen < 0)
2211 keylen = KL_PART_KEY;
2212 else
2213 keylen = mp_match_len;
2214 }
2215
2216 /* complete match */
2217 if (keylen >= 0 && keylen <= typebuf.tb_len)
2218 {
2219 /* write chars to script file(s) */
2220 if (keylen > typebuf.tb_maplen)
2221 gotchars(typebuf.tb_buf + typebuf.tb_off
2222 + typebuf.tb_maplen,
2223 keylen - typebuf.tb_maplen);
2224
2225 cmd_silent = (typebuf.tb_silent > 0);
2226 del_typebuf(keylen, 0); /* remove the mapped keys */
2227
2228 /*
2229 * Put the replacement string in front of mapstr.
2230 * The depth check catches ":map x y" and ":map y x".
2231 */
2232 if (++mapdepth >= p_mmd)
2233 {
2234 EMSG(_("E223: recursive mapping"));
2235 if (State & CMDLINE)
2236 redrawcmdline();
2237 else
2238 setcursor();
2239 flush_buffers(FALSE);
2240 mapdepth = 0; /* for next one */
2241 c = -1;
2242 break;
2243 }
2244
2245#ifdef FEAT_VISUAL
2246 /*
2247 * In Select mode, a Visual mode mapping is used.
2248 * Switch to Visual mode temporarily. Append K_SELECT
2249 * to switch back to Select mode.
2250 */
2251 if (VIsual_active && VIsual_select)
2252 {
2253 VIsual_select = FALSE;
2254 (void)ins_typebuf(K_SELECT_STRING, REMAP_NONE,
2255 0, TRUE, FALSE);
2256 }
2257#endif
2258
2259 /*
2260 * Insert the 'to' part in the typebuf.tb_buf.
2261 * If 'from' field is the same as the start of the
Bram Moolenaarf4b8e572004-06-24 15:53:16 +00002262 * 'to' field, don't remap the first character (but do
2263 * allow abbreviations).
Bram Moolenaar071d4272004-06-13 20:20:40 +00002264 * If m_noremap is set, don't remap the whole 'to'
2265 * part.
2266 */
2267 if (ins_typebuf(mp->m_str,
2268 mp->m_noremap != REMAP_YES
2269 ? mp->m_noremap
2270 : STRNCMP(mp->m_str, mp->m_keys,
Bram Moolenaarf4b8e572004-06-24 15:53:16 +00002271 (size_t)keylen) != 0
2272 ? REMAP_YES : REMAP_SKIP,
Bram Moolenaar071d4272004-06-13 20:20:40 +00002273 0, TRUE, cmd_silent || mp->m_silent) == FAIL)
2274 {
2275 c = -1;
2276 break;
2277 }
2278 continue;
2279 }
2280 }
2281
2282/*
2283 * get a character: 3. from the user - handle <Esc> in Insert mode
2284 */
2285 /*
2286 * special case: if we get an <ESC> in insert mode and there
2287 * are no more characters at once, we pretend to go out of
2288 * insert mode. This prevents the one second delay after
2289 * typing an <ESC>. If we get something after all, we may
2290 * have to redisplay the mode. That the cursor is in the wrong
2291 * place does not matter.
2292 */
2293 c = 0;
2294#ifdef FEAT_CMDL_INFO
2295 new_wcol = curwin->w_wcol;
2296 new_wrow = curwin->w_wrow;
2297#endif
2298 if ( advance
2299 && typebuf.tb_len == 1
2300 && typebuf.tb_buf[typebuf.tb_off] == ESC
2301 && !no_mapping
2302#ifdef FEAT_EX_EXTRA
2303 && ex_normal_busy == 0
2304#endif
2305 && typebuf.tb_maplen == 0
2306 && (State & INSERT)
2307 && (p_timeout || (keylen == KL_PART_KEY && p_ttimeout))
2308 && (c = inchar(typebuf.tb_buf + typebuf.tb_off
2309 + typebuf.tb_len, 3, 25L,
2310 typebuf.tb_change_cnt)) == 0)
2311 {
2312 colnr_T col = 0, vcol;
2313 char_u *ptr;
2314
2315 if (p_smd)
2316 {
2317 unshowmode(TRUE);
2318 mode_deleted = TRUE;
2319 }
2320#ifdef FEAT_GUI
2321 /* may show different cursor shape */
2322 if (gui.in_use)
2323 {
2324 int save_State;
2325
2326 save_State = State;
2327 State = NORMAL;
2328 gui_update_cursor(TRUE, FALSE);
2329 State = save_State;
2330 shape_changed = TRUE;
2331 }
2332#endif
2333 validate_cursor();
2334 old_wcol = curwin->w_wcol;
2335 old_wrow = curwin->w_wrow;
2336
2337 /* move cursor left, if possible */
2338 if (curwin->w_cursor.col != 0)
2339 {
2340 if (curwin->w_wcol > 0)
2341 {
2342 if (did_ai)
2343 {
2344 /*
2345 * We are expecting to truncate the trailing
2346 * white-space, so find the last non-white
2347 * character -- webb
2348 */
2349 col = vcol = curwin->w_wcol = 0;
2350 ptr = ml_get_curline();
2351 while (col < curwin->w_cursor.col)
2352 {
2353 if (!vim_iswhite(ptr[col]))
2354 curwin->w_wcol = vcol;
2355 vcol += lbr_chartabsize(ptr + col,
2356 (colnr_T)vcol);
2357#ifdef FEAT_MBYTE
2358 if (has_mbyte)
2359 col += (*mb_ptr2len_check)(ptr + col);
2360 else
2361#endif
2362 ++col;
2363 }
2364 curwin->w_wrow = curwin->w_cline_row
2365 + curwin->w_wcol / W_WIDTH(curwin);
2366 curwin->w_wcol %= W_WIDTH(curwin);
2367 curwin->w_wcol += curwin_col_off();
2368#ifdef FEAT_MBYTE
2369 col = 0; /* no correction needed */
2370#endif
2371 }
2372 else
2373 {
2374 --curwin->w_wcol;
2375#ifdef FEAT_MBYTE
2376 col = curwin->w_cursor.col - 1;
2377#endif
2378 }
2379 }
2380 else if (curwin->w_p_wrap && curwin->w_wrow)
2381 {
2382 --curwin->w_wrow;
2383 curwin->w_wcol = W_WIDTH(curwin) - 1;
2384#ifdef FEAT_MBYTE
2385 col = curwin->w_cursor.col - 1;
2386#endif
2387 }
2388#ifdef FEAT_MBYTE
2389 if (has_mbyte && col > 0 && curwin->w_wcol > 0)
2390 {
2391 /* Correct when the cursor is on the right halve
2392 * of a double-wide character. */
2393 ptr = ml_get_curline();
2394 col -= (*mb_head_off)(ptr, ptr + col);
2395 if ((*mb_ptr2cells)(ptr + col) > 1)
2396 --curwin->w_wcol;
2397 }
2398#endif
2399 }
2400 setcursor();
2401 out_flush();
2402#ifdef FEAT_CMDL_INFO
2403 new_wcol = curwin->w_wcol;
2404 new_wrow = curwin->w_wrow;
2405#endif
2406 curwin->w_wcol = old_wcol;
2407 curwin->w_wrow = old_wrow;
2408 }
2409 if (c < 0)
2410 continue; /* end of input script reached */
2411 typebuf.tb_len += c;
2412
2413 /* buffer full, don't map */
2414 if (typebuf.tb_len >= typebuf.tb_maplen + MAXMAPLEN)
2415 {
2416 timedout = TRUE;
2417 continue;
2418 }
2419
2420#ifdef FEAT_EX_EXTRA
2421 if (ex_normal_busy > 0)
2422 {
2423# ifdef FEAT_CMDWIN
2424 static int tc = 0;
2425# endif
2426
2427 /* No typeahead left and inside ":normal". Must return
2428 * something to avoid getting stuck. When an incomplete
2429 * mapping is present, behave like it timed out. */
2430 if (typebuf.tb_len > 0)
2431 {
2432 timedout = TRUE;
2433 continue;
2434 }
2435 /* When 'insertmode' is set, ESC just beeps in Insert
2436 * mode. Use CTRL-L to make edit() return.
2437 * For the command line only CTRL-C always breaks it.
2438 * For the cmdline window: Alternate between ESC and
2439 * CTRL-C: ESC for most situations and CTRL-C to close the
2440 * cmdline window. */
2441 if (p_im && (State & INSERT))
2442 c = Ctrl_L;
2443 else if ((State & CMDLINE)
2444# ifdef FEAT_CMDWIN
2445 || (cmdwin_type > 0 && tc == ESC)
2446# endif
2447 )
2448 c = Ctrl_C;
2449 else
2450 c = ESC;
2451# ifdef FEAT_CMDWIN
2452 tc = c;
2453# endif
2454 break;
2455 }
2456#endif
2457
2458/*
2459 * get a character: 3. from the user - update display
2460 */
2461 /* In insert mode a screen update is skipped when characters
2462 * are still available. But when those available characters
2463 * are part of a mapping, and we are going to do a blocking
2464 * wait here. Need to update the screen to display the
2465 * changed text so far. */
2466 if ((State & INSERT) && advance && must_redraw != 0)
2467 {
2468 update_screen(0);
2469 setcursor(); /* put cursor back where it belongs */
2470 }
2471
2472 /*
2473 * If we have a partial match (and are going to wait for more
2474 * input from the user), show the partially matched characters
2475 * to the user with showcmd.
2476 */
2477#ifdef FEAT_CMDL_INFO
2478 i = 0;
2479#endif
2480 c1 = 0;
2481 if (typebuf.tb_len > 0 && advance && !exmode_active)
2482 {
2483 if (((State & (NORMAL | INSERT)) || State == LANGMAP)
2484 && State != HITRETURN)
2485 {
2486 /* this looks nice when typing a dead character map */
2487 if (State & INSERT
2488 && ptr2cells(typebuf.tb_buf + typebuf.tb_off
2489 + typebuf.tb_len - 1) == 1)
2490 {
2491 edit_putchar(typebuf.tb_buf[typebuf.tb_off
2492 + typebuf.tb_len - 1], FALSE);
2493 setcursor(); /* put cursor back where it belongs */
2494 c1 = 1;
2495 }
2496#ifdef FEAT_CMDL_INFO
2497 /* need to use the col and row from above here */
2498 old_wcol = curwin->w_wcol;
2499 old_wrow = curwin->w_wrow;
2500 curwin->w_wcol = new_wcol;
2501 curwin->w_wrow = new_wrow;
2502 push_showcmd();
2503 if (typebuf.tb_len > SHOWCMD_COLS)
2504 i = typebuf.tb_len - SHOWCMD_COLS;
2505 while (i < typebuf.tb_len)
2506 (void)add_to_showcmd(typebuf.tb_buf[typebuf.tb_off
2507 + i++]);
2508 curwin->w_wcol = old_wcol;
2509 curwin->w_wrow = old_wrow;
2510#endif
2511 }
2512
2513 /* this looks nice when typing a dead character map */
2514 if ((State & CMDLINE)
2515#if defined(FEAT_CRYPT) || defined(FEAT_EVAL)
2516 && cmdline_star == 0
2517#endif
2518 && ptr2cells(typebuf.tb_buf + typebuf.tb_off
2519 + typebuf.tb_len - 1) == 1)
2520 {
2521 putcmdline(typebuf.tb_buf[typebuf.tb_off
2522 + typebuf.tb_len - 1], FALSE);
2523 c1 = 1;
2524 }
2525 }
2526
2527/*
2528 * get a character: 3. from the user - get it
2529 */
2530 c = inchar(typebuf.tb_buf + typebuf.tb_off + typebuf.tb_len,
2531 typebuf.tb_buflen - typebuf.tb_off - typebuf.tb_len - 1,
2532 !advance
2533 ? 0
2534 : ((typebuf.tb_len == 0
2535 || !(p_timeout || (p_ttimeout
2536 && keylen == KL_PART_KEY)))
2537 ? -1L
2538 : ((keylen == KL_PART_KEY && p_ttm >= 0)
2539 ? p_ttm
2540 : p_tm)), typebuf.tb_change_cnt);
2541
2542#ifdef FEAT_CMDL_INFO
2543 if (i != 0)
2544 pop_showcmd();
2545#endif
2546 if (c1 == 1)
2547 {
2548 if (State & INSERT)
2549 edit_unputchar();
2550 if (State & CMDLINE)
2551 unputcmdline();
2552 setcursor(); /* put cursor back where it belongs */
2553 }
2554
2555 if (c < 0)
2556 continue; /* end of input script reached */
2557 if (c == NUL) /* no character available */
2558 {
2559 if (!advance)
2560 break;
2561 if (typebuf.tb_len > 0) /* timed out */
2562 {
2563 timedout = TRUE;
2564 continue;
2565 }
2566 }
2567 else
2568 { /* allow mapping for just typed characters */
2569 while (typebuf.tb_buf[typebuf.tb_off
2570 + typebuf.tb_len] != NUL)
2571 typebuf.tb_noremap[typebuf.tb_off
2572 + typebuf.tb_len++] = RM_YES;
2573#ifdef USE_IM_CONTROL
2574 /* Get IM status right after getting keys, not after the
2575 * timeout for a mapping (focus may be lost by then). */
2576 vgetc_im_active = im_get_status();
2577#endif
2578 }
2579 } /* for (;;) */
2580 } /* if (!character from stuffbuf) */
2581
2582 /* if advance is FALSE don't loop on NULs */
2583 } while (c < 0 || (advance && c == NUL));
2584
2585 /*
2586 * The "INSERT" message is taken care of here:
2587 * if we return an ESC to exit insert mode, the message is deleted
2588 * if we don't return an ESC but deleted the message before, redisplay it
2589 */
2590 if (advance && p_smd && (State & INSERT))
2591 {
2592 if (c == ESC && !mode_deleted && !no_mapping)
2593 {
2594 if (typebuf.tb_len && !KeyTyped)
2595 redraw_cmdline = TRUE; /* delete mode later */
2596 else
2597 unshowmode(FALSE);
2598 }
2599 else if (c != ESC && mode_deleted)
2600 {
2601 if (typebuf.tb_len && !KeyTyped)
2602 redraw_cmdline = TRUE; /* show mode later */
2603 else
2604 showmode();
2605 }
2606 }
2607#ifdef FEAT_GUI
2608 /* may unshow different cursor shape */
2609 if (gui.in_use && shape_changed)
2610 gui_update_cursor(TRUE, FALSE);
2611#endif
2612
2613 vgetc_busy = FALSE;
2614
2615 return c;
2616}
2617
2618/*
2619 * inchar() - get one character from
2620 * 1. a scriptfile
2621 * 2. the keyboard
2622 *
2623 * As much characters as we can get (upto 'maxlen') are put in "buf" and
2624 * NUL terminated (buffer length must be 'maxlen' + 1).
2625 * Minimum for "maxlen" is 3!!!!
2626 *
2627 * "tb_change_cnt" is the value of typebuf.tb_change_cnt if "buf" points into
2628 * it. When typebuf.tb_change_cnt changes (e.g., when a message is received
2629 * from a remote client) "buf" can no longer be used. "tb_change_cnt" is 0
2630 * otherwise.
2631 *
2632 * If we got an interrupt all input is read until none is available.
2633 *
2634 * If wait_time == 0 there is no waiting for the char.
2635 * If wait_time == n we wait for n msec for a character to arrive.
2636 * If wait_time == -1 we wait forever for a character to arrive.
2637 *
2638 * Return the number of obtained characters.
2639 * Return -1 when end of input script reached.
2640 */
2641 int
2642inchar(buf, maxlen, wait_time, tb_change_cnt)
2643 char_u *buf;
2644 int maxlen;
2645 long wait_time; /* milli seconds */
2646 int tb_change_cnt;
2647{
2648 int len = 0; /* init for GCC */
2649 int retesc = FALSE; /* return ESC with gotint */
2650 int script_char;
2651
2652 if (wait_time == -1L || wait_time > 100L) /* flush output before waiting */
2653 {
2654 cursor_on();
2655 out_flush();
2656#ifdef FEAT_GUI
2657 if (gui.in_use)
2658 {
2659 gui_update_cursor(FALSE, FALSE);
2660# ifdef FEAT_MOUSESHAPE
2661 if (postponed_mouseshape)
2662 update_mouseshape(-1);
2663# endif
2664 }
2665#endif
2666 }
2667
2668 /*
2669 * Don't reset these when at the hit-return prompt, otherwise a endless
2670 * recursive loop may result (write error in swapfile, hit-return, timeout
2671 * on char wait, flush swapfile, write error....).
2672 */
2673 if (State != HITRETURN)
2674 {
2675 did_outofmem_msg = FALSE; /* display out of memory message (again) */
2676 did_swapwrite_msg = FALSE; /* display swap file write error again */
2677 }
2678 undo_off = FALSE; /* restart undo now */
2679
2680 /*
2681 * first try script file
2682 * If interrupted: Stop reading script files.
2683 */
2684 script_char = -1;
2685 while (scriptin[curscript] != NULL && script_char < 0)
2686 {
2687 if (got_int || (script_char = getc(scriptin[curscript])) < 0)
2688 {
2689 /* Reached EOF.
2690 * Careful: closescript() frees typebuf.tb_buf[] and buf[] may
2691 * point inside typebuf.tb_buf[]. Don't use buf[] after this! */
2692 closescript();
2693 /*
2694 * When reading script file is interrupted, return an ESC to get
2695 * back to normal mode.
2696 * Otherwise return -1, because typebuf.tb_buf[] has changed.
2697 */
2698 if (got_int)
2699 retesc = TRUE;
2700 else
2701 return -1;
2702 }
2703 else
2704 {
2705 buf[0] = script_char;
2706 len = 1;
2707 }
2708 }
2709
2710 if (script_char < 0) /* did not get a character from script */
2711 {
2712 /*
2713 * If we got an interrupt, skip all previously typed characters and
2714 * return TRUE if quit reading script file.
2715 * Stop reading typeahead when a single CTRL-C was read,
2716 * fill_input_buf() returns this when not able to read from stdin.
2717 * Don't use buf[] here, closescript() may have freed typebuf.tb_buf[]
2718 * and buf may be pointing inside typebuf.tb_buf[].
2719 */
2720 if (got_int)
2721 {
2722#define DUM_LEN MAXMAPLEN * 3 + 3
2723 char_u dum[DUM_LEN + 1];
2724
2725 for (;;)
2726 {
2727 len = ui_inchar(dum, DUM_LEN, 0L, 0);
2728 if (len == 0 || (len == 1 && dum[0] == 3))
2729 break;
2730 }
2731 return retesc;
2732 }
2733
2734 /*
2735 * Always flush the output characters when getting input characters
2736 * from the user.
2737 */
2738 out_flush();
2739
2740 /*
2741 * Fill up to a third of the buffer, because each character may be
2742 * tripled below.
2743 */
2744 len = ui_inchar(buf, maxlen / 3, wait_time, tb_change_cnt);
2745 }
2746
2747 if (typebuf_changed(tb_change_cnt))
2748 return 0;
2749
2750 return fix_input_buffer(buf, len, script_char >= 0);
2751}
2752
2753/*
2754 * Fix typed characters for use by vgetc() and check_termcode().
2755 * buf[] must have room to triple the number of bytes!
2756 * Returns the new length.
2757 */
2758 int
2759fix_input_buffer(buf, len, script)
2760 char_u *buf;
2761 int len;
2762 int script; /* TRUE when reading from a script */
2763{
2764 int i;
2765 char_u *p = buf;
2766
2767 /*
2768 * Two characters are special: NUL and K_SPECIAL.
2769 * When compiled With the GUI CSI is also special.
2770 * Replace NUL by K_SPECIAL KS_ZERO KE_FILLER
2771 * Replace K_SPECIAL by K_SPECIAL KS_SPECIAL KE_FILLER
2772 * Replace CSI by K_SPECIAL KS_EXTRA KE_CSI
2773 * Don't replace K_SPECIAL when reading a script file.
2774 */
2775 for (i = len; --i >= 0; ++p)
2776 {
2777#ifdef FEAT_GUI
2778 /* When the GUI is used any character can come after a CSI, don't
2779 * escape it. */
2780 if (gui.in_use && p[0] == CSI && i >= 2)
2781 {
2782 p += 2;
2783 i -= 2;
2784 }
2785 /* When the GUI is not used CSI needs to be escaped. */
2786 else if (!gui.in_use && p[0] == CSI)
2787 {
2788 mch_memmove(p + 3, p + 1, (size_t)i);
2789 *p++ = K_SPECIAL;
2790 *p++ = KS_EXTRA;
2791 *p = (int)KE_CSI;
2792 len += 2;
2793 }
2794 else
2795#endif
2796 if (p[0] == NUL || (p[0] == K_SPECIAL && !script
2797#if defined(WIN3264) && !defined(FEAT_GUI)
2798 /* Win32 console passes modifiers */
2799 && (i < 2 || p[1] != KS_MODIFIER)
2800#endif
2801 ))
2802 {
2803 mch_memmove(p + 3, p + 1, (size_t)i);
2804 p[2] = K_THIRD(p[0]);
2805 p[1] = K_SECOND(p[0]);
2806 p[0] = K_SPECIAL;
2807 p += 2;
2808 len += 2;
2809 }
2810 }
2811 *p = NUL; /* add trailing NUL */
2812 return len;
2813}
2814
2815#if defined(USE_INPUT_BUF) || defined(PROTO)
2816/*
2817 * Return TRUE when bytes are in the input buffer or in the typeahead buffer.
2818 * Normally the input buffer would be sufficient, but the server_to_input_buf()
2819 * may insert characters in the typeahead buffer while we are waiting for
2820 * input to arrive.
2821 */
2822 int
2823input_available()
2824{
2825 return (!vim_is_input_buf_empty()
2826# ifdef FEAT_CLIENTSERVER
2827 || received_from_client
2828# endif
2829 );
2830}
2831#endif
2832
2833/*
2834 * map[!] : show all key mappings
2835 * map[!] {lhs} : show key mapping for {lhs}
2836 * map[!] {lhs} {rhs} : set key mapping for {lhs} to {rhs}
2837 * noremap[!] {lhs} {rhs} : same, but no remapping for {rhs}
2838 * unmap[!] {lhs} : remove key mapping for {lhs}
2839 * abbr : show all abbreviations
2840 * abbr {lhs} : show abbreviations for {lhs}
2841 * abbr {lhs} {rhs} : set abbreviation for {lhs} to {rhs}
2842 * noreabbr {lhs} {rhs} : same, but no remapping for {rhs}
2843 * unabbr {lhs} : remove abbreviation for {lhs}
2844 *
2845 * maptype: 0 for :map, 1 for :unmap, 2 for noremap.
2846 *
2847 * arg is pointer to any arguments. Note: arg cannot be a read-only string,
2848 * it will be modified.
2849 *
2850 * for :map mode is NORMAL + VISUAL + OP_PENDING
2851 * for :map! mode is INSERT + CMDLINE
2852 * for :cmap mode is CMDLINE
2853 * for :imap mode is INSERT
2854 * for :lmap mode is LANGMAP
2855 * for :nmap mode is NORMAL
2856 * for :vmap mode is VISUAL
2857 * for :omap mode is OP_PENDING
2858 *
2859 * for :abbr mode is INSERT + CMDLINE
2860 * for :iabbr mode is INSERT
2861 * for :cabbr mode is CMDLINE
2862 *
2863 * Return 0 for success
2864 * 1 for invalid arguments
2865 * 2 for no match
2866 * 4 for out of mem
2867 * 5 for entry not unique
2868 */
2869 int
2870do_map(maptype, arg, mode, abbrev)
2871 int maptype;
2872 char_u *arg;
2873 int mode;
2874 int abbrev; /* not a mapping but an abbreviation */
2875{
2876 char_u *keys;
2877 mapblock_T *mp, **mpp;
2878 char_u *rhs;
2879 char_u *p;
2880 int n;
2881 int len = 0; /* init for GCC */
2882 char_u *newstr;
2883 int hasarg;
2884 int haskey;
2885 int did_it = FALSE;
2886#ifdef FEAT_LOCALMAP
2887 int did_local = FALSE;
2888#endif
2889 int round;
2890 char_u *keys_buf = NULL;
2891 char_u *arg_buf = NULL;
2892 int retval = 0;
2893 int do_backslash;
2894 int hash;
2895 int new_hash;
2896 mapblock_T **abbr_table;
2897 mapblock_T **map_table;
2898 int unique = FALSE;
2899 int silent = FALSE;
2900 int noremap;
2901
2902 keys = arg;
2903 map_table = maphash;
2904 abbr_table = &first_abbr;
2905
2906 /* For ":noremap" don't remap, otherwise do remap. */
2907 if (maptype == 2)
2908 noremap = REMAP_NONE;
2909 else
2910 noremap = REMAP_YES;
2911
2912 /* Accept <buffer>, <silent>, <script> and <unique> in any order. */
2913 for (;;)
2914 {
2915#ifdef FEAT_LOCALMAP
2916 /*
2917 * Check for "<buffer>": mapping local to buffer.
2918 */
2919 if (STRNCMP(keys, "<buffer>", 8) == 0)
2920 {
2921 keys = skipwhite(keys + 8);
2922 map_table = curbuf->b_maphash;
2923 abbr_table = &curbuf->b_first_abbr;
2924 continue;
2925 }
2926#endif
2927
2928 /*
2929 * Check for "<silent>": don't echo commands.
2930 */
2931 if (STRNCMP(keys, "<silent>", 8) == 0)
2932 {
2933 keys = skipwhite(keys + 8);
2934 silent = TRUE;
2935 continue;
2936 }
2937
2938#ifdef FEAT_EVAL
2939 /*
2940 * Check for "<script>": remap script-local mappings only
2941 */
2942 if (STRNCMP(keys, "<script>", 8) == 0)
2943 {
2944 keys = skipwhite(keys + 8);
2945 noremap = REMAP_SCRIPT;
2946 continue;
2947 }
2948#endif
2949 /*
2950 * Check for "<unique>": don't overwrite an existing mapping.
2951 */
2952 if (STRNCMP(keys, "<unique>", 8) == 0)
2953 {
2954 keys = skipwhite(keys + 8);
2955 unique = TRUE;
2956 continue;
2957 }
2958 break;
2959 }
2960
2961 validate_maphash();
2962
2963 /*
2964 * find end of keys and skip CTRL-Vs (and backslashes) in it
2965 * Accept backslash like CTRL-V when 'cpoptions' does not contain 'B'.
2966 * with :unmap white space is included in the keys, no argument possible
2967 */
2968 p = keys;
2969 do_backslash = (vim_strchr(p_cpo, CPO_BSLASH) == NULL);
2970 while (*p && (maptype == 1 || !vim_iswhite(*p)))
2971 {
2972 if ((p[0] == Ctrl_V || (do_backslash && p[0] == '\\')) &&
2973 p[1] != NUL)
2974 ++p; /* skip CTRL-V or backslash */
2975 ++p;
2976 }
2977 if (*p != NUL)
2978 *p++ = NUL;
2979 p = skipwhite(p);
2980 rhs = p;
2981 hasarg = (*rhs != NUL);
2982 haskey = (*keys != NUL);
2983
2984 /* check for :unmap without argument */
2985 if (maptype == 1 && !haskey)
2986 {
2987 retval = 1;
2988 goto theend;
2989 }
2990
2991 /*
2992 * If mapping has been given as ^V<C_UP> say, then replace the term codes
2993 * with the appropriate two bytes. If it is a shifted special key, unshift
2994 * it too, giving another two bytes.
2995 * replace_termcodes() may move the result to allocated memory, which
2996 * needs to be freed later (*keys_buf and *arg_buf).
2997 * replace_termcodes() also removes CTRL-Vs and sometimes backslashes.
2998 */
2999 if (haskey)
3000 keys = replace_termcodes(keys, &keys_buf, TRUE, TRUE);
3001 if (hasarg)
3002 {
3003 if (STRICMP(rhs, "<nop>") == 0) /* "<Nop>" means nothing */
3004 rhs = (char_u *)"";
3005 else
3006 rhs = replace_termcodes(rhs, &arg_buf, FALSE, TRUE);
3007 }
3008
3009#ifdef FEAT_FKMAP
3010 /*
3011 * when in right-to-left mode and alternate keymap option set,
3012 * reverse the character flow in the rhs in Farsi.
3013 */
3014 if (p_altkeymap && curwin->w_p_rl)
3015 lrswap(rhs);
3016#endif
3017
3018 /*
3019 * check arguments and translate function keys
3020 */
3021 if (haskey)
3022 {
3023 len = (int)STRLEN(keys);
3024 if (len > MAXMAPLEN) /* maximum length of MAXMAPLEN chars */
3025 {
3026 retval = 1;
3027 goto theend;
3028 }
3029
3030 if (abbrev && maptype != 1)
3031 {
3032 /*
3033 * If an abbreviation ends in a keyword character, the
3034 * rest must be all keyword-char or all non-keyword-char.
3035 * Otherwise we won't be able to find the start of it in a
3036 * vi-compatible way.
3037 */
3038#ifdef FEAT_MBYTE
3039 if (has_mbyte)
3040 {
3041 int first, last;
3042 int same = -1;
3043
3044 first = vim_iswordp(keys);
3045 last = first;
3046 p = keys + mb_ptr2len_check(keys);
3047 n = 1;
3048 while (p < keys + len)
3049 {
3050 ++n; /* nr of (multi-byte) chars */
3051 last = vim_iswordp(p); /* type of last char */
3052 if (same == -1 && last != first)
3053 same = n - 1; /* count of same char type */
3054 p += mb_ptr2len_check(p);
3055 }
3056 if (last && n > 2 && same >= 0 && same < n - 1)
3057 {
3058 retval = 1;
3059 goto theend;
3060 }
3061 }
3062 else
3063#endif
3064 if (vim_iswordc(keys[len - 1])) /* ends in keyword char */
3065 for (n = 0; n < len - 2; ++n)
3066 if (vim_iswordc(keys[n]) != vim_iswordc(keys[len - 2]))
3067 {
3068 retval = 1;
3069 goto theend;
3070 }
3071 /* An abbrevation cannot contain white space. */
3072 for (n = 0; n < len; ++n)
3073 if (vim_iswhite(keys[n]))
3074 {
3075 retval = 1;
3076 goto theend;
3077 }
3078 }
3079 }
3080
3081 if (haskey && hasarg && abbrev) /* if we will add an abbreviation */
3082 no_abbr = FALSE; /* reset flag that indicates there are
3083 no abbreviations */
3084
3085 if (!haskey || (maptype != 1 && !hasarg))
3086 msg_start();
3087
3088#ifdef FEAT_LOCALMAP
3089 /*
3090 * Check if a new local mapping wasn't already defined globally.
3091 */
3092 if (map_table == curbuf->b_maphash && haskey && hasarg && maptype != 1)
3093 {
3094 /* need to loop over all global hash lists */
3095 for (hash = 0; hash < 256 && !got_int; ++hash)
3096 {
3097 if (abbrev)
3098 {
3099 if (hash != 0) /* there is only one abbreviation list */
3100 break;
3101 mp = first_abbr;
3102 }
3103 else
3104 mp = maphash[hash];
3105 for ( ; mp != NULL && !got_int; mp = mp->m_next)
3106 {
3107 /* check entries with the same mode */
3108 if ((mp->m_mode & mode) != 0
3109 && mp->m_keylen == len
3110 && unique
3111 && STRNCMP(mp->m_keys, keys, (size_t)len) == 0)
3112 {
3113 if (abbrev)
3114 EMSG2(_("E224: global abbreviation already exists for %s"),
3115 mp->m_keys);
3116 else
3117 EMSG2(_("E225: global mapping already exists for %s"),
3118 mp->m_keys);
3119 retval = 5;
3120 goto theend;
3121 }
3122 }
3123 }
3124 }
3125
3126 /*
3127 * When listing global mappings, also list buffer-local ones here.
3128 */
3129 if (map_table != curbuf->b_maphash && !hasarg && maptype != 1)
3130 {
3131 /* need to loop over all global hash lists */
3132 for (hash = 0; hash < 256 && !got_int; ++hash)
3133 {
3134 if (abbrev)
3135 {
3136 if (hash != 0) /* there is only one abbreviation list */
3137 break;
3138 mp = curbuf->b_first_abbr;
3139 }
3140 else
3141 mp = curbuf->b_maphash[hash];
3142 for ( ; mp != NULL && !got_int; mp = mp->m_next)
3143 {
3144 /* check entries with the same mode */
3145 if ((mp->m_mode & mode) != 0)
3146 {
3147 if (!haskey) /* show all entries */
3148 {
3149 showmap(mp, TRUE);
3150 did_local = TRUE;
3151 }
3152 else
3153 {
3154 n = mp->m_keylen;
3155 if (STRNCMP(mp->m_keys, keys,
3156 (size_t)(n < len ? n : len)) == 0)
3157 {
3158 showmap(mp, TRUE);
3159 did_local = TRUE;
3160 }
3161 }
3162 }
3163 }
3164 }
3165 }
3166#endif
3167
3168 /*
3169 * Find an entry in the maphash[] list that matches.
3170 * For :unmap we may loop two times: once to try to unmap an entry with a
3171 * matching 'from' part, a second time, if the first fails, to unmap an
3172 * entry with a matching 'to' part. This was done to allow ":ab foo bar"
3173 * to be unmapped by typing ":unab foo", where "foo" will be replaced by
3174 * "bar" because of the abbreviation.
3175 */
3176 for (round = 0; (round == 0 || maptype == 1) && round <= 1
3177 && !did_it && !got_int; ++round)
3178 {
3179 /* need to loop over all hash lists */
3180 for (hash = 0; hash < 256 && !got_int; ++hash)
3181 {
3182 if (abbrev)
3183 {
3184 if (hash != 0) /* there is only one abbreviation list */
3185 break;
3186 mpp = abbr_table;
3187 }
3188 else
3189 mpp = &(map_table[hash]);
3190 for (mp = *mpp; mp != NULL && !got_int; mp = *mpp)
3191 {
3192
3193 if (!(mp->m_mode & mode)) /* skip entries with wrong mode */
3194 {
3195 mpp = &(mp->m_next);
3196 continue;
3197 }
3198 if (!haskey) /* show all entries */
3199 {
3200 showmap(mp, map_table != maphash);
3201 did_it = TRUE;
3202 }
3203 else /* do we have a match? */
3204 {
3205 if (round) /* second round: Try unmap "rhs" string */
3206 {
3207 n = (int)STRLEN(mp->m_str);
3208 p = mp->m_str;
3209 }
3210 else
3211 {
3212 n = mp->m_keylen;
3213 p = mp->m_keys;
3214 }
3215 if (STRNCMP(p, keys, (size_t)(n < len ? n : len)) == 0)
3216 {
3217 if (maptype == 1) /* delete entry */
3218 {
3219 /* Only accept a full match. For abbreviations we
3220 * ignore trailing space when matching with the
3221 * "lhs", since an abbreviation can't have
3222 * trailing space. */
3223 if (n != len && (!abbrev || round || n > len
3224 || *skipwhite(keys + n) != NUL))
3225 {
3226 mpp = &(mp->m_next);
3227 continue;
3228 }
3229 /*
3230 * We reset the indicated mode bits. If nothing is
3231 * left the entry is deleted below.
3232 */
3233 mp->m_mode &= ~mode;
3234 did_it = TRUE; /* remember we did something */
3235 }
3236 else if (!hasarg) /* show matching entry */
3237 {
3238 showmap(mp, map_table != maphash);
3239 did_it = TRUE;
3240 }
3241 else if (n != len) /* new entry is ambigious */
3242 {
3243 mpp = &(mp->m_next);
3244 continue;
3245 }
3246 else if (unique)
3247 {
3248 if (abbrev)
3249 EMSG2(_("E226: abbreviation already exists for %s"),
3250 p);
3251 else
3252 EMSG2(_("E227: mapping already exists for %s"), p);
3253 retval = 5;
3254 goto theend;
3255 }
3256 else /* new rhs for existing entry */
3257 {
3258 mp->m_mode &= ~mode; /* remove mode bits */
3259 if (mp->m_mode == 0 && !did_it) /* reuse entry */
3260 {
3261 newstr = vim_strsave(rhs);
3262 if (newstr == NULL)
3263 {
3264 retval = 4; /* no mem */
3265 goto theend;
3266 }
3267 vim_free(mp->m_str);
3268 mp->m_str = newstr;
3269 mp->m_noremap = noremap;
3270 mp->m_silent = silent;
3271 mp->m_mode = mode;
3272 did_it = TRUE;
3273 }
3274 }
3275 if (mp->m_mode == 0) /* entry can be deleted */
3276 {
3277 map_free(mpp);
3278 continue; /* continue with *mpp */
3279 }
3280
3281 /*
3282 * May need to put this entry into another hash list.
3283 */
3284 new_hash = MAP_HASH(mp->m_mode, mp->m_keys[0]);
3285 if (!abbrev && new_hash != hash)
3286 {
3287 *mpp = mp->m_next;
3288 mp->m_next = map_table[new_hash];
3289 map_table[new_hash] = mp;
3290
3291 continue; /* continue with *mpp */
3292 }
3293 }
3294 }
3295 mpp = &(mp->m_next);
3296 }
3297 }
3298 }
3299
3300 if (maptype == 1) /* delete entry */
3301 {
3302 if (!did_it)
3303 retval = 2; /* no match */
3304 goto theend;
3305 }
3306
3307 if (!haskey || !hasarg) /* print entries */
3308 {
3309 if (!did_it
3310#ifdef FEAT_LOCALMAP
3311 && !did_local
3312#endif
3313 )
3314 {
3315 if (abbrev)
3316 MSG(_("No abbreviation found"));
3317 else
3318 MSG(_("No mapping found"));
3319 }
3320 goto theend; /* listing finished */
3321 }
3322
3323 if (did_it) /* have added the new entry already */
3324 goto theend;
3325
3326 /*
3327 * Get here when adding a new entry to the maphash[] list or abbrlist.
3328 */
3329 mp = (mapblock_T *)alloc((unsigned)sizeof(mapblock_T));
3330 if (mp == NULL)
3331 {
3332 retval = 4; /* no mem */
3333 goto theend;
3334 }
3335
3336 /* If CTRL-C has been mapped, don't always use it for Interrupting */
3337 if (*keys == Ctrl_C)
3338 mapped_ctrl_c = TRUE;
3339
3340 mp->m_keys = vim_strsave(keys);
3341 mp->m_str = vim_strsave(rhs);
3342 if (mp->m_keys == NULL || mp->m_str == NULL)
3343 {
3344 vim_free(mp->m_keys);
3345 vim_free(mp->m_str);
3346 vim_free(mp);
3347 retval = 4; /* no mem */
3348 goto theend;
3349 }
3350 mp->m_keylen = (int)STRLEN(mp->m_keys);
3351 mp->m_noremap = noremap;
3352 mp->m_silent = silent;
3353 mp->m_mode = mode;
3354
3355 /* add the new entry in front of the abbrlist or maphash[] list */
3356 if (abbrev)
3357 {
3358 mp->m_next = *abbr_table;
3359 *abbr_table = mp;
3360 }
3361 else
3362 {
3363 n = MAP_HASH(mp->m_mode, mp->m_keys[0]);
3364 mp->m_next = map_table[n];
3365 map_table[n] = mp;
3366 }
3367
3368theend:
3369 vim_free(keys_buf);
3370 vim_free(arg_buf);
3371 return retval;
3372}
3373
3374/*
3375 * Delete one entry from the abbrlist or maphash[].
3376 * "mpp" is a pointer to the m_next field of the PREVIOUS entry!
3377 */
3378 static void
3379map_free(mpp)
3380 mapblock_T **mpp;
3381{
3382 mapblock_T *mp;
3383
3384 mp = *mpp;
3385 vim_free(mp->m_keys);
3386 vim_free(mp->m_str);
3387 *mpp = mp->m_next;
3388 vim_free(mp);
3389}
3390
3391/*
3392 * Initialize maphash[] for first use.
3393 */
3394 static void
3395validate_maphash()
3396{
3397 if (!maphash_valid)
3398 {
3399 vim_memset(maphash, 0, sizeof(maphash));
3400 maphash_valid = TRUE;
3401 }
3402}
3403
3404/*
3405 * Get the mapping mode from the command name.
3406 */
3407 int
3408get_map_mode(cmdp, forceit)
3409 char_u **cmdp;
3410 int forceit;
3411{
3412 char_u *p;
3413 int modec;
3414 int mode;
3415
3416 p = *cmdp;
3417 modec = *p++;
3418 if (modec == 'i')
3419 mode = INSERT; /* :imap */
3420 else if (modec == 'l')
3421 mode = LANGMAP; /* :lmap */
3422 else if (modec == 'c')
3423 mode = CMDLINE; /* :cmap */
3424 else if (modec == 'n' && *p != 'o') /* avoid :noremap */
3425 mode = NORMAL; /* :nmap */
3426 else if (modec == 'v')
3427 mode = VISUAL; /* :vmap */
3428 else if (modec == 'o')
3429 mode = OP_PENDING; /* :omap */
3430 else
3431 {
3432 --p;
3433 if (forceit)
3434 mode = INSERT + CMDLINE; /* :map ! */
3435 else
3436 mode = VISUAL + NORMAL + OP_PENDING;/* :map */
3437 }
3438
3439 *cmdp = p;
3440 return mode;
3441}
3442
3443/*
3444 * Clear all mappings or abbreviations.
3445 * 'abbr' should be FALSE for mappings, TRUE for abbreviations.
3446 */
3447/*ARGSUSED*/
3448 void
3449map_clear(cmdp, arg, forceit, abbr)
3450 char_u *cmdp;
3451 char_u *arg;
3452 int forceit;
3453 int abbr;
3454{
3455 int mode;
3456#ifdef FEAT_LOCALMAP
3457 int local;
3458
3459 local = (STRCMP(arg, "<buffer>") == 0);
3460 if (!local && *arg != NUL)
3461 {
3462 EMSG(_(e_invarg));
3463 return;
3464 }
3465#endif
3466
3467 mode = get_map_mode(&cmdp, forceit);
3468 map_clear_int(curbuf, mode,
3469#ifdef FEAT_LOCALMAP
3470 local,
3471#else
3472 FALSE,
3473#endif
3474 abbr);
3475}
3476
3477/*
3478 * Clear all mappings in "mode".
3479 */
3480/*ARGSUSED*/
3481 void
3482map_clear_int(buf, mode, local, abbr)
3483 buf_T *buf; /* buffer for local mappings */
3484 int mode; /* mode in which to delete */
3485 int local; /* TRUE for buffer-local mappings */
3486 int abbr; /* TRUE for abbreviations */
3487{
3488 mapblock_T *mp, **mpp;
3489 int hash;
3490 int new_hash;
3491
3492 validate_maphash();
3493
3494 for (hash = 0; hash < 256; ++hash)
3495 {
3496 if (abbr)
3497 {
3498 if (hash) /* there is only one abbrlist */
3499 break;
3500#ifdef FEAT_LOCALMAP
3501 if (local)
3502 mpp = &buf->b_first_abbr;
3503 else
3504#endif
3505 mpp = &first_abbr;
3506 }
3507 else
3508 {
3509#ifdef FEAT_LOCALMAP
3510 if (local)
3511 mpp = &buf->b_maphash[hash];
3512 else
3513#endif
3514 mpp = &maphash[hash];
3515 }
3516 while (*mpp != NULL)
3517 {
3518 mp = *mpp;
3519 if (mp->m_mode & mode)
3520 {
3521 mp->m_mode &= ~mode;
3522 if (mp->m_mode == 0) /* entry can be deleted */
3523 {
3524 map_free(mpp);
3525 continue;
3526 }
3527 /*
3528 * May need to put this entry into another hash list.
3529 */
3530 new_hash = MAP_HASH(mp->m_mode, mp->m_keys[0]);
3531 if (!abbr && new_hash != hash)
3532 {
3533 *mpp = mp->m_next;
3534#ifdef FEAT_LOCALMAP
3535 if (local)
3536 {
3537 mp->m_next = buf->b_maphash[new_hash];
3538 buf->b_maphash[new_hash] = mp;
3539 }
3540 else
3541#endif
3542 {
3543 mp->m_next = maphash[new_hash];
3544 maphash[new_hash] = mp;
3545 }
3546 continue; /* continue with *mpp */
3547 }
3548 }
3549 mpp = &(mp->m_next);
3550 }
3551 }
3552}
3553
3554 static void
3555showmap(mp, local)
3556 mapblock_T *mp;
3557 int local; /* TRUE for buffer-local map */
3558{
3559 int len = 1;
3560
3561 if (msg_didout || msg_silent != 0)
3562 msg_putchar('\n');
3563 if ((mp->m_mode & (INSERT + CMDLINE)) == INSERT + CMDLINE)
3564 msg_putchar('!'); /* :map! */
3565 else if (mp->m_mode & INSERT)
3566 msg_putchar('i'); /* :imap */
3567 else if (mp->m_mode & LANGMAP)
3568 msg_putchar('l'); /* :lmap */
3569 else if (mp->m_mode & CMDLINE)
3570 msg_putchar('c'); /* :cmap */
3571 else if ((mp->m_mode & (NORMAL + VISUAL + OP_PENDING))
3572 == NORMAL + VISUAL + OP_PENDING)
3573 msg_putchar(' '); /* :map */
3574 else
3575 {
3576 len = 0;
3577 if (mp->m_mode & NORMAL)
3578 {
3579 msg_putchar('n'); /* :nmap */
3580 ++len;
3581 }
3582 if (mp->m_mode & OP_PENDING)
3583 {
3584 msg_putchar('o'); /* :omap */
3585 ++len;
3586 }
3587 if (mp->m_mode & VISUAL)
3588 {
3589 msg_putchar('v'); /* :vmap */
3590 ++len;
3591 }
3592 }
3593 while (++len <= 3)
3594 msg_putchar(' ');
3595
3596 /* Get length of what we write */
3597 len = msg_outtrans_special(mp->m_keys, TRUE);
3598 do
3599 {
3600 msg_putchar(' '); /* padd with blanks */
3601 ++len;
3602 } while (len < 12);
3603
3604 if (mp->m_noremap == REMAP_NONE)
3605 msg_puts_attr((char_u *)"*", hl_attr(HLF_8));
3606 else if (mp->m_noremap == REMAP_SCRIPT)
3607 msg_puts_attr((char_u *)"&", hl_attr(HLF_8));
3608 else
3609 msg_putchar(' ');
3610
3611 if (local)
3612 msg_putchar('@');
3613 else
3614 msg_putchar(' ');
3615
3616 /* Use FALSE below if we only want things like <Up> to show up as such on
3617 * the rhs, and not M-x etc, TRUE gets both -- webb
3618 */
3619 if (*mp->m_str == NUL)
3620 msg_puts_attr((char_u *)"<Nop>", hl_attr(HLF_8));
3621 else
3622 msg_outtrans_special(mp->m_str, FALSE);
3623 out_flush(); /* show one line at a time */
3624}
3625
3626#if defined(FEAT_EVAL) || defined(PROTO)
3627/*
3628 * Return TRUE if a map exists that has "str" in the rhs for mode "modechars".
3629 * Recognize termcap codes in "str".
3630 * Also checks mappings local to the current buffer.
3631 */
3632 int
3633map_to_exists(str, modechars)
3634 char_u *str;
3635 char_u *modechars;
3636{
3637 int mode = 0;
3638 char_u *rhs;
3639 char_u *buf;
3640 int retval;
3641
3642 rhs = replace_termcodes(str, &buf, FALSE, TRUE);
3643
3644 if (vim_strchr(modechars, 'n') != NULL)
3645 mode |= NORMAL;
3646 if (vim_strchr(modechars, 'v') != NULL)
3647 mode |= VISUAL;
3648 if (vim_strchr(modechars, 'o') != NULL)
3649 mode |= OP_PENDING;
3650 if (vim_strchr(modechars, 'i') != NULL)
3651 mode |= INSERT;
3652 if (vim_strchr(modechars, 'l') != NULL)
3653 mode |= LANGMAP;
3654 if (vim_strchr(modechars, 'c') != NULL)
3655 mode |= CMDLINE;
3656
3657 retval = map_to_exists_mode(rhs, mode);
3658 vim_free(buf);
3659
3660 return retval;
3661}
3662#endif
3663
3664/*
3665 * Return TRUE if a map exists that has "str" in the rhs for mode "mode".
3666 * Also checks mappings local to the current buffer.
3667 */
3668 int
3669map_to_exists_mode(rhs, mode)
3670 char_u *rhs;
3671 int mode;
3672{
3673 mapblock_T *mp;
3674 int hash;
3675# ifdef FEAT_LOCALMAP
3676 int expand_buffer = FALSE;
3677
3678 validate_maphash();
3679
3680 /* Do it twice: once for global maps and once for local maps. */
3681 for (;;)
3682 {
3683# endif
3684 for (hash = 0; hash < 256; ++hash)
3685 {
3686# ifdef FEAT_LOCALMAP
3687 if (expand_buffer)
3688 mp = curbuf->b_maphash[hash];
3689 else
3690# endif
3691 mp = maphash[hash];
3692 for (; mp; mp = mp->m_next)
3693 {
3694 if ((mp->m_mode & mode)
3695 && strstr((char *)mp->m_str, (char *)rhs) != NULL)
3696 return TRUE;
3697 }
3698 }
3699# ifdef FEAT_LOCALMAP
3700 if (expand_buffer)
3701 break;
3702 expand_buffer = TRUE;
3703 }
3704# endif
3705
3706 return FALSE;
3707}
3708
3709#if defined(FEAT_CMDL_COMPL) || defined(PROTO)
3710/*
3711 * Used below when expanding mapping/abbreviation names.
3712 */
3713static int expand_mapmodes = 0;
3714static int expand_isabbrev = 0;
3715#ifdef FEAT_LOCALMAP
3716static int expand_buffer = FALSE;
3717#endif
3718
3719/*
3720 * Work out what to complete when doing command line completion of mapping
3721 * or abbreviation names.
3722 */
3723 char_u *
3724set_context_in_map_cmd(xp, cmd, arg, forceit, isabbrev, isunmap, cmdidx)
3725 expand_T *xp;
3726 char_u *cmd;
3727 char_u *arg;
3728 int forceit; /* TRUE if '!' given */
3729 int isabbrev; /* TRUE if abbreviation */
3730 int isunmap; /* TRUE if unmap/unabbrev command */
3731 cmdidx_T cmdidx;
3732{
3733 if (forceit && cmdidx != CMD_map && cmdidx != CMD_unmap)
3734 xp->xp_context = EXPAND_NOTHING;
3735 else
3736 {
3737 if (isunmap)
3738 expand_mapmodes = get_map_mode(&cmd, forceit || isabbrev);
3739 else
3740 {
3741 expand_mapmodes = INSERT + CMDLINE;
3742 if (!isabbrev)
3743 expand_mapmodes += VISUAL + NORMAL + OP_PENDING;
3744 }
3745 expand_isabbrev = isabbrev;
3746 xp->xp_context = EXPAND_MAPPINGS;
3747#ifdef FEAT_LOCALMAP
3748 expand_buffer = FALSE;
3749#endif
3750 for (;;)
3751 {
3752#ifdef FEAT_LOCALMAP
3753 if (STRNCMP(arg, "<buffer>", 8) == 0)
3754 {
3755 expand_buffer = TRUE;
3756 arg = skipwhite(arg + 8);
3757 continue;
3758 }
3759#endif
3760 if (STRNCMP(arg, "<unique>", 8) == 0)
3761 {
3762 arg = skipwhite(arg + 8);
3763 continue;
3764 }
3765 if (STRNCMP(arg, "<silent>", 8) == 0)
3766 {
3767 arg = skipwhite(arg + 8);
3768 continue;
3769 }
3770 if (STRNCMP(arg, "<script>", 8) == 0)
3771 {
3772 arg = skipwhite(arg + 8);
3773 continue;
3774 }
3775 break;
3776 }
3777 xp->xp_pattern = arg;
3778 }
3779
3780 return NULL;
3781}
3782
3783/*
3784 * Find all mapping/abbreviation names that match regexp 'prog'.
3785 * For command line expansion of ":[un]map" and ":[un]abbrev" in all modes.
3786 * Return OK if matches found, FAIL otherwise.
3787 */
3788 int
3789ExpandMappings(regmatch, num_file, file)
3790 regmatch_T *regmatch;
3791 int *num_file;
3792 char_u ***file;
3793{
3794 mapblock_T *mp;
3795 int hash;
3796 int count;
3797 int round;
3798 char_u *p;
3799 int i;
3800
3801 validate_maphash();
3802
3803 *num_file = 0; /* return values in case of FAIL */
3804 *file = NULL;
3805
3806 /*
3807 * round == 1: Count the matches.
3808 * round == 2: Build the array to keep the matches.
3809 */
3810 for (round = 1; round <= 2; ++round)
3811 {
3812 count = 0;
3813
3814 for (i = 0; i < 4; ++i)
3815 {
3816 if (i == 0)
3817 p = (char_u *)"<silent>";
3818 else if (i == 1)
3819 p = (char_u *)"<unique>";
3820#ifdef FEAT_EVAL
3821 else if (i == 2)
3822 p = (char_u *)"<script>";
3823#endif
3824#ifdef FEAT_LOCALMAP
3825 else if (i == 3 && !expand_buffer)
3826 p = (char_u *)"<buffer>";
3827#endif
3828 else
3829 continue;
3830
3831 if (vim_regexec(regmatch, p, (colnr_T)0))
3832 {
3833 if (round == 1)
3834 ++count;
3835 else
3836 (*file)[count++] = vim_strsave(p);
3837 }
3838 }
3839
3840 for (hash = 0; hash < 256; ++hash)
3841 {
3842 if (expand_isabbrev)
3843 {
3844 if (hash) /* only one abbrev list */
3845 break; /* for (hash) */
3846 mp = first_abbr;
3847 }
3848#ifdef FEAT_LOCALMAP
3849 else if (expand_buffer)
3850 mp = curbuf->b_maphash[hash];
3851#endif
3852 else
3853 mp = maphash[hash];
3854 for (; mp; mp = mp->m_next)
3855 {
3856 if (mp->m_mode & expand_mapmodes)
3857 {
3858 p = translate_mapping(mp->m_keys, TRUE);
3859 if (p != NULL && vim_regexec(regmatch, p, (colnr_T)0))
3860 {
3861 if (round == 1)
3862 ++count;
3863 else
3864 {
3865 (*file)[count++] = p;
3866 p = NULL;
3867 }
3868 }
3869 vim_free(p);
3870 }
3871 } /* for (mp) */
3872 } /* for (hash) */
3873
3874 if (count == 0) /* no match found */
3875 break; /* for (round) */
3876
3877 if (round == 1)
3878 {
3879 *file = (char_u **)alloc((unsigned)(count * sizeof(char_u *)));
3880 if (*file == NULL)
3881 return FAIL;
3882 }
3883 } /* for (round) */
3884
3885 /* Sort the matches */
3886 sort_strings(*file, count);
3887
3888 /* Remove multiple entries */
3889 {
3890 char_u **ptr1 = *file;
3891 char_u **ptr2 = ptr1 + 1;
3892 char_u **ptr3 = ptr1 + count;
3893
3894 while (ptr2 < ptr3)
3895 {
3896 if (STRCMP(*ptr1, *ptr2))
3897 *++ptr1 = *ptr2++;
3898 else
3899 {
3900 vim_free(*ptr2++);
3901 count--;
3902 }
3903 }
3904 }
3905
3906 *num_file = count;
3907 return (count == 0 ? FAIL : OK);
3908}
3909#endif /* FEAT_CMDL_COMPL */
3910
3911/*
3912 * Check for an abbreviation.
3913 * Cursor is at ptr[col]. When inserting, mincol is where insert started.
3914 * "c" is the character typed before check_abbr was called. It may have
3915 * ABBR_OFF added to avoid prepending a CTRL-V to it.
3916 *
3917 * Historic vi practice: The last character of an abbreviation must be an id
3918 * character ([a-zA-Z0-9_]). The characters in front of it must be all id
3919 * characters or all non-id characters. This allows for abbr. "#i" to
3920 * "#include".
3921 *
3922 * Vim addition: Allow for abbreviations that end in a non-keyword character.
3923 * Then there must be white space before the abbr.
3924 *
3925 * return TRUE if there is an abbreviation, FALSE if not
3926 */
3927 int
3928check_abbr(c, ptr, col, mincol)
3929 int c;
3930 char_u *ptr;
3931 int col;
3932 int mincol;
3933{
3934 int len;
3935 int scol; /* starting column of the abbr. */
3936 int j;
3937#ifdef FEAT_MBYTE
3938 char_u tb[MB_MAXBYTES + 4];
3939#else
3940 char_u tb[4];
3941#endif
3942 mapblock_T *mp;
3943#ifdef FEAT_LOCALMAP
3944 mapblock_T *mp2;
3945#endif
3946#ifdef FEAT_MBYTE
3947 int clen = 0; /* length in characters */
3948#endif
3949 int is_id = TRUE;
3950 int vim_abbr;
3951
3952 if (typebuf.tb_no_abbr_cnt) /* abbrev. are not recursive */
3953 return FALSE;
3954 if (KeyNoremap) /* no remapping implies no abbreviation */
3955 return FALSE;
3956
3957 /*
3958 * Check for word before the cursor: If it ends in a keyword char all
3959 * chars before it must be al keyword chars or non-keyword chars, but not
3960 * white space. If it ends in a non-keyword char we accept any characters
3961 * before it except white space.
3962 */
3963 if (col == 0) /* cannot be an abbr. */
3964 return FALSE;
3965
3966#ifdef FEAT_MBYTE
3967 if (has_mbyte)
3968 {
3969 char_u *p;
3970
3971 p = mb_prevptr(ptr, ptr + col);
3972 if (!vim_iswordp(p))
3973 vim_abbr = TRUE; /* Vim added abbr. */
3974 else
3975 {
3976 vim_abbr = FALSE; /* vi compatible abbr. */
3977 if (p > ptr)
3978 is_id = vim_iswordp(mb_prevptr(ptr, p));
3979 }
3980 clen = 1;
3981 while (p > ptr + mincol)
3982 {
3983 p = mb_prevptr(ptr, p);
3984 if (vim_isspace(*p) || (!vim_abbr && is_id != vim_iswordp(p)))
3985 {
3986 p += (*mb_ptr2len_check)(p);
3987 break;
3988 }
3989 ++clen;
3990 }
3991 scol = (int)(p - ptr);
3992 }
3993 else
3994#endif
3995 {
3996 if (!vim_iswordc(ptr[col - 1]))
3997 vim_abbr = TRUE; /* Vim added abbr. */
3998 else
3999 {
4000 vim_abbr = FALSE; /* vi compatible abbr. */
4001 if (col > 1)
4002 is_id = vim_iswordc(ptr[col - 2]);
4003 }
4004 for (scol = col - 1; scol > 0 && !vim_isspace(ptr[scol - 1])
4005 && (vim_abbr || is_id == vim_iswordc(ptr[scol - 1])); --scol)
4006 ;
4007 }
4008
4009 if (scol < mincol)
4010 scol = mincol;
4011 if (scol < col) /* there is a word in front of the cursor */
4012 {
4013 ptr += scol;
4014 len = col - scol;
4015#ifdef FEAT_LOCALMAP
4016 mp = curbuf->b_first_abbr;
4017 mp2 = first_abbr;
4018 if (mp == NULL)
4019 {
4020 mp = mp2;
4021 mp2 = NULL;
4022 }
4023#else
4024 mp = first_abbr;
4025#endif
4026 for ( ; mp;
4027#ifdef FEAT_LOCALMAP
4028 mp->m_next == NULL ? (mp = mp2, mp2 = NULL) :
4029#endif
4030 (mp = mp->m_next))
4031 {
4032 /* find entries with right mode and keys */
4033 if ( (mp->m_mode & State)
4034 && mp->m_keylen == len
4035 && !STRNCMP(mp->m_keys, ptr, (size_t)len))
4036 break;
4037 }
4038 if (mp != NULL)
4039 {
4040 /*
4041 * Found a match:
4042 * Insert the rest of the abbreviation in typebuf.tb_buf[].
4043 * This goes from end to start.
4044 *
4045 * Characters 0x000 - 0x100: normal chars, may need CTRL-V,
4046 * except K_SPECIAL: Becomes K_SPECIAL KS_SPECIAL KE_FILLER
4047 * Characters where IS_SPECIAL() == TRUE: key codes, need
4048 * K_SPECIAL. Other characters (with ABBR_OFF): don't use CTRL-V.
4049 *
4050 * Character CTRL-] is treated specially - it completes the
4051 * abbreviation, but is not inserted into the input stream.
4052 */
4053 j = 0;
4054 /* special key code, split up */
4055 if (c != Ctrl_RSB)
4056 {
4057 if (IS_SPECIAL(c) || c == K_SPECIAL)
4058 {
4059 tb[j++] = K_SPECIAL;
4060 tb[j++] = K_SECOND(c);
4061 tb[j++] = K_THIRD(c);
4062 }
4063 else
4064 {
4065 if (c < ABBR_OFF && (c < ' ' || c > '~'))
4066 tb[j++] = Ctrl_V; /* special char needs CTRL-V */
4067#ifdef FEAT_MBYTE
4068 if (has_mbyte)
4069 {
4070 /* if ABBR_OFF has been added, remove it here */
4071 if (c >= ABBR_OFF)
4072 c -= ABBR_OFF;
4073 j += (*mb_char2bytes)(c, tb + j);
4074 }
4075 else
4076#endif
4077 tb[j++] = c;
4078 }
4079 tb[j] = NUL;
4080 /* insert the last typed char */
4081 (void)ins_typebuf(tb, 1, 0, TRUE, mp->m_silent);
4082 }
4083 /* insert the to string */
4084 (void)ins_typebuf(mp->m_str, mp->m_noremap, 0, TRUE, mp->m_silent);
4085 /* no abbrev. for these chars */
4086 typebuf.tb_no_abbr_cnt += (int)STRLEN(mp->m_str) + j + 1;
4087
4088 tb[0] = Ctrl_H;
4089 tb[1] = NUL;
4090#ifdef FEAT_MBYTE
4091 if (has_mbyte)
4092 len = clen; /* Delete characters instead of bytes */
4093#endif
4094 while (len-- > 0) /* delete the from string */
4095 (void)ins_typebuf(tb, 1, 0, TRUE, mp->m_silent);
4096 return TRUE;
4097 }
4098 }
4099 return FALSE;
4100}
4101
4102/*
4103 * Write map commands for the current mappings to an .exrc file.
4104 * Return FAIL on error, OK otherwise.
4105 */
4106 int
4107makemap(fd, buf)
4108 FILE *fd;
4109 buf_T *buf; /* buffer for local mappings or NULL */
4110{
4111 mapblock_T *mp;
4112 char_u c1, c2;
4113 char_u *p;
4114 char *cmd;
4115 int abbr;
4116 int hash;
4117 int did_cpo = FALSE;
4118 int i;
4119
4120 validate_maphash();
4121
4122 /*
4123 * Do the loop twice: Once for mappings, once for abbreviations.
4124 * Then loop over all map hash lists.
4125 */
4126 for (abbr = 0; abbr < 2; ++abbr)
4127 for (hash = 0; hash < 256; ++hash)
4128 {
4129 if (abbr)
4130 {
4131 if (hash) /* there is only one abbr list */
4132 break;
4133#ifdef FEAT_LOCALMAP
4134 if (buf != NULL)
4135 mp = buf->b_first_abbr;
4136 else
4137#endif
4138 mp = first_abbr;
4139 }
4140 else
4141 {
4142#ifdef FEAT_LOCALMAP
4143 if (buf != NULL)
4144 mp = buf->b_maphash[hash];
4145 else
4146#endif
4147 mp = maphash[hash];
4148 }
4149
4150 for ( ; mp; mp = mp->m_next)
4151 {
4152 /* skip script-local mappings */
4153 if (mp->m_noremap == REMAP_SCRIPT)
4154 continue;
4155
4156 /* skip mappings that contain a <SNR> (script-local thing),
4157 * they probably don't work when loaded again */
4158 for (p = mp->m_str; *p != NUL; ++p)
4159 if (p[0] == K_SPECIAL && p[1] == KS_EXTRA
4160 && p[2] == (int)KE_SNR)
4161 break;
4162 if (*p != NUL)
4163 continue;
4164
4165 c1 = NUL;
4166 c2 = NUL;
4167 if (abbr)
4168 cmd = "abbr";
4169 else
4170 cmd = "map";
4171 switch (mp->m_mode)
4172 {
4173 case NORMAL + VISUAL + OP_PENDING:
4174 break;
4175 case NORMAL:
4176 c1 = 'n';
4177 break;
4178 case VISUAL:
4179 c1 = 'v';
4180 break;
4181 case OP_PENDING:
4182 c1 = 'o';
4183 break;
4184 case NORMAL + VISUAL:
4185 c1 = 'n';
4186 c2 = 'v';
4187 break;
4188 case VISUAL + OP_PENDING:
4189 c1 = 'v';
4190 c2 = 'o';
4191 break;
4192 case NORMAL + OP_PENDING:
4193 c1 = 'n';
4194 c2 = 'o';
4195 break;
4196 case CMDLINE + INSERT:
4197 if (!abbr)
4198 cmd = "map!";
4199 break;
4200 case CMDLINE:
4201 c1 = 'c';
4202 break;
4203 case INSERT:
4204 c1 = 'i';
4205 break;
4206 case LANGMAP:
4207 c1 = 'l';
4208 break;
4209 default:
4210 EMSG(_("E228: makemap: Illegal mode"));
4211 return FAIL;
4212 }
4213 do /* may do this twice if c2 is set */
4214 {
4215 /* When outputting <> form, need to make sure that 'cpo'
4216 * is set to the Vim default. */
4217 if (!did_cpo)
4218 {
4219 if (*mp->m_str == NUL) /* will use <Nop> */
4220 did_cpo = TRUE;
4221 else
4222 for (i = 0; i < 2; ++i)
4223 for (p = (i ? mp->m_str : mp->m_keys); *p; ++p)
4224 if (*p == K_SPECIAL || *p == NL)
4225 did_cpo = TRUE;
4226 if (did_cpo)
4227 {
4228 if (fprintf(fd, "let s:cpo_save=&cpo") < 0
4229 || put_eol(fd) < 0
4230 || fprintf(fd, "set cpo&vim") < 0
4231 || put_eol(fd) < 0)
4232 return FAIL;
4233 }
4234 }
4235 if (c1 && putc(c1, fd) < 0)
4236 return FAIL;
4237 if (mp->m_noremap != REMAP_YES && fprintf(fd, "nore") < 0)
4238 return FAIL;
4239 if (fprintf(fd, cmd) < 0)
4240 return FAIL;
4241 if (buf != NULL && fputs(" <buffer>", fd) < 0)
4242 return FAIL;
4243 if (mp->m_silent && fputs(" <silent>", fd) < 0)
4244 return FAIL;
4245
4246 if ( putc(' ', fd) < 0
4247 || put_escstr(fd, mp->m_keys, 0) == FAIL
4248 || putc(' ', fd) < 0
4249 || put_escstr(fd, mp->m_str, 1) == FAIL
4250 || put_eol(fd) < 0)
4251 return FAIL;
4252 c1 = c2;
4253 c2 = NUL;
4254 }
4255 while (c1);
4256 }
4257 }
4258
4259 if (did_cpo)
4260 if (fprintf(fd, "let &cpo=s:cpo_save") < 0
4261 || put_eol(fd) < 0
4262 || fprintf(fd, "unlet s:cpo_save") < 0
4263 || put_eol(fd) < 0)
4264 return FAIL;
4265 return OK;
4266}
4267
4268/*
4269 * write escape string to file
4270 * "what": 0 for :map lhs, 1 for :map rhs, 2 for :set
4271 *
4272 * return FAIL for failure, OK otherwise
4273 */
4274 int
4275put_escstr(fd, strstart, what)
4276 FILE *fd;
4277 char_u *strstart;
4278 int what;
4279{
4280 char_u *str = strstart;
4281 int c;
4282 int modifiers;
4283
4284 /* :map xx <Nop> */
4285 if (*str == NUL && what == 1)
4286 {
4287 if (fprintf(fd, "<Nop>") < 0)
4288 return FAIL;
4289 return OK;
4290 }
4291
4292 for ( ; *str != NUL; ++str)
4293 {
4294#ifdef FEAT_MBYTE
4295 char_u *p;
4296
4297 /* Check for a multi-byte character, which may contain escaped
4298 * K_SPECIAL and CSI bytes */
4299 p = mb_unescape(&str);
4300 if (p != NULL)
4301 {
4302 while (*p != NUL)
4303 if (putc(*p++, fd) < 0)
4304 return FAIL;
4305 --str;
4306 continue;
4307 }
4308#endif
4309
4310 c = *str;
4311 /*
4312 * Special key codes have to be translated to be able to make sense
4313 * when they are read back.
4314 */
4315 if (c == K_SPECIAL && what != 2)
4316 {
4317 modifiers = 0x0;
4318 if (str[1] == KS_MODIFIER)
4319 {
4320 modifiers = str[2];
4321 str += 3;
4322 c = *str;
4323 }
4324 if (c == K_SPECIAL)
4325 {
4326 c = TO_SPECIAL(str[1], str[2]);
4327 str += 2;
4328 }
4329 if (IS_SPECIAL(c) || modifiers) /* special key */
4330 {
4331 if (fprintf(fd, (char *)get_special_key_name(c, modifiers)) < 0)
4332 return FAIL;
4333 continue;
4334 }
4335 }
4336
4337 /*
4338 * A '\n' in a map command should be written as <NL>.
4339 * A '\n' in a set command should be written as \^V^J.
4340 */
4341 if (c == NL)
4342 {
4343 if (what == 2)
4344 {
4345 if (fprintf(fd, IF_EB("\\\026\n", "\\" CTRL_V_STR "\n")) < 0)
4346 return FAIL;
4347 }
4348 else
4349 {
4350 if (fprintf(fd, "<NL>") < 0)
4351 return FAIL;
4352 }
4353 continue;
4354 }
4355
4356 /*
4357 * Some characters have to be escaped with CTRL-V to
4358 * prevent them from misinterpreted in DoOneCmd().
4359 * A space, Tab and '"' has to be escaped with a backslash to
4360 * prevent it to be misinterpreted in do_set().
4361 * A space has to be escaped with a CTRL-V when it's at the start of a
4362 * ":map" rhs.
4363 * A '<' has to be escaped with a CTRL-V to prevent it being
4364 * interpreted as the start of a special key name.
4365 * A space in the lhs of a :map needs a CTRL-V.
4366 */
4367 if (what == 2 && (vim_iswhite(c) || c == '"' || c == '\\'))
4368 {
4369 if (putc('\\', fd) < 0)
4370 return FAIL;
4371 }
4372 else if (c < ' ' || c > '~' || c == '|'
4373 || (what == 0 && c == ' ')
4374 || (what == 1 && str == strstart && c == ' ')
4375 || (what != 2 && c == '<'))
4376 {
4377 if (putc(Ctrl_V, fd) < 0)
4378 return FAIL;
4379 }
4380 if (putc(c, fd) < 0)
4381 return FAIL;
4382 }
4383 return OK;
4384}
4385
4386/*
4387 * Check all mappings for the presence of special key codes.
4388 * Used after ":set term=xxx".
4389 */
4390 void
4391check_map_keycodes()
4392{
4393 mapblock_T *mp;
4394 char_u *p;
4395 int i;
4396 char_u buf[3];
4397 char_u *save_name;
4398 int abbr;
4399 int hash;
4400#ifdef FEAT_LOCALMAP
4401 buf_T *bp;
4402#endif
4403
4404 validate_maphash();
4405 save_name = sourcing_name;
4406 sourcing_name = (char_u *)"mappings"; /* avoids giving error messages */
4407
4408#ifdef FEAT_LOCALMAP
4409 /* This this once for each buffer, and then once for global
4410 * mappings/abbreviations with bp == NULL */
4411 for (bp = firstbuf; ; bp = bp->b_next)
4412 {
4413#endif
4414 /*
4415 * Do the loop twice: Once for mappings, once for abbreviations.
4416 * Then loop over all map hash lists.
4417 */
4418 for (abbr = 0; abbr <= 1; ++abbr)
4419 for (hash = 0; hash < 256; ++hash)
4420 {
4421 if (abbr)
4422 {
4423 if (hash) /* there is only one abbr list */
4424 break;
4425#ifdef FEAT_LOCALMAP
4426 if (bp != NULL)
4427 mp = bp->b_first_abbr;
4428 else
4429#endif
4430 mp = first_abbr;
4431 }
4432 else
4433 {
4434#ifdef FEAT_LOCALMAP
4435 if (bp != NULL)
4436 mp = bp->b_maphash[hash];
4437 else
4438#endif
4439 mp = maphash[hash];
4440 }
4441 for ( ; mp != NULL; mp = mp->m_next)
4442 {
4443 for (i = 0; i <= 1; ++i) /* do this twice */
4444 {
4445 if (i == 0)
4446 p = mp->m_keys; /* once for the "from" part */
4447 else
4448 p = mp->m_str; /* and once for the "to" part */
4449 while (*p)
4450 {
4451 if (*p == K_SPECIAL)
4452 {
4453 ++p;
4454 if (*p < 128) /* for "normal" tcap entries */
4455 {
4456 buf[0] = p[0];
4457 buf[1] = p[1];
4458 buf[2] = NUL;
4459 (void)add_termcap_entry(buf, FALSE);
4460 }
4461 ++p;
4462 }
4463 ++p;
4464 }
4465 }
4466 }
4467 }
4468#ifdef FEAT_LOCALMAP
4469 if (bp == NULL)
4470 break;
4471 }
4472#endif
4473 sourcing_name = save_name;
4474}
4475
4476#ifdef FEAT_EVAL
4477/*
4478 * Check the string "keys" against the lhs of all mappings
4479 * Return pointer to rhs of mapping (mapblock->m_str)
4480 * NULL otherwise
4481 */
4482 char_u *
4483check_map(keys, mode, exact)
4484 char_u *keys;
4485 int mode;
4486 int exact; /* require exact match */
4487{
4488 int hash;
4489 int len, minlen;
4490 mapblock_T *mp;
4491#ifdef FEAT_LOCALMAP
4492 int local;
4493#endif
4494
4495 validate_maphash();
4496
4497 len = (int)STRLEN(keys);
4498#ifdef FEAT_LOCALMAP
4499 for (local = 1; local >= 0; --local)
4500#endif
4501 /* loop over all hash lists */
4502 for (hash = 0; hash < 256; ++hash)
4503 {
4504#ifdef FEAT_LOCALMAP
4505 if (local)
4506 mp = curbuf->b_maphash[hash];
4507 else
4508#endif
4509 mp = maphash[hash];
4510 for ( ; mp != NULL; mp = mp->m_next)
4511 {
4512 /* skip entries with wrong mode, wrong length and not matching
4513 * ones */
4514 if (mp->m_keylen < len)
4515 minlen = mp->m_keylen;
4516 else
4517 minlen = len;
4518 if ((mp->m_mode & mode)
4519 && (!exact || mp->m_keylen == len)
4520 && STRNCMP(mp->m_keys, keys, minlen) == 0)
4521 return mp->m_str;
4522 }
4523 }
4524
4525 return NULL;
4526}
4527#endif
4528
4529/*
4530 * Default mappings for some often used keys.
4531 */
4532static struct initmap
4533{
4534 char_u *arg;
4535 int mode;
4536} initmappings[] =
4537{
4538#if defined(MSDOS) || defined(MSWIN) || defined(OS2)
4539 /* Use the Windows (CUA) keybindings. */
4540# ifdef FEAT_GUI
4541 {(char_u *)"<C-PageUp> H", NORMAL+VISUAL},
4542 {(char_u *)"<C-PageUp> <C-O>H",INSERT},
4543 {(char_u *)"<C-PageDown> L$", NORMAL+VISUAL},
4544 {(char_u *)"<C-PageDown> <C-O>L<C-O>$", INSERT},
4545
4546 /* paste, copy and cut */
4547 {(char_u *)"<S-Insert> \"*P", NORMAL},
4548 {(char_u *)"<S-Insert> \"-d\"*P", VISUAL},
4549 {(char_u *)"<S-Insert> <C-R><C-O>*", INSERT+CMDLINE},
4550 {(char_u *)"<C-Insert> \"*y", VISUAL},
4551 {(char_u *)"<S-Del> \"*d", VISUAL},
4552 {(char_u *)"<C-Del> \"*d", VISUAL},
4553 {(char_u *)"<C-X> \"*d", VISUAL},
4554 /* Missing: CTRL-C (cancel) and CTRL-V (block selection) */
4555# else
4556 {(char_u *)"\316\204 H", NORMAL+VISUAL}, /* CTRL-PageUp is "H" */
4557 {(char_u *)"\316\204 \017H",INSERT}, /* CTRL-PageUp is "^OH"*/
4558 {(char_u *)"\316v L$", NORMAL+VISUAL}, /* CTRL-PageDown is "L$" */
4559 {(char_u *)"\316v \017L\017$", INSERT}, /* CTRL-PageDown ="^OL^O$"*/
4560 {(char_u *)"\316w <C-Home>", NORMAL+VISUAL},
4561 {(char_u *)"\316w <C-Home>", INSERT+CMDLINE},
4562 {(char_u *)"\316u <C-End>", NORMAL+VISUAL},
4563 {(char_u *)"\316u <C-End>", INSERT+CMDLINE},
4564
4565 /* paste, copy and cut */
4566# ifdef FEAT_CLIPBOARD
4567# ifdef DJGPP
4568 {(char_u *)"\316\122 \"*P", NORMAL}, /* SHIFT-Insert is "*P */
4569 {(char_u *)"\316\122 \"-d\"*P", VISUAL}, /* SHIFT-Insert is "-d"*P */
4570 {(char_u *)"\316\122 \022\017*", INSERT}, /* SHIFT-Insert is ^R^O* */
4571 {(char_u *)"\316\222 \"*y", VISUAL}, /* CTRL-Insert is "*y */
4572# if 0 /* Shift-Del produces the same code as Del */
4573 {(char_u *)"\316\123 \"*d", VISUAL}, /* SHIFT-Del is "*d */
4574# endif
4575 {(char_u *)"\316\223 \"*d", VISUAL}, /* CTRL-Del is "*d */
4576 {(char_u *)"\030 \"-d", VISUAL}, /* CTRL-X is "-d */
4577# else
4578 {(char_u *)"\316\324 \"*P", NORMAL}, /* SHIFT-Insert is "*P */
4579 {(char_u *)"\316\324 \"-d\"*P", VISUAL}, /* SHIFT-Insert is "-d"*P */
4580 {(char_u *)"\316\324 \022\017*", INSERT}, /* SHIFT-Insert is ^R^O* */
4581 {(char_u *)"\316\325 \"*y", VISUAL}, /* CTRL-Insert is "*y */
4582 {(char_u *)"\316\327 \"*d", VISUAL}, /* SHIFT-Del is "*d */
4583 {(char_u *)"\316\330 \"*d", VISUAL}, /* CTRL-Del is "*d */
4584 {(char_u *)"\030 \"-d", VISUAL}, /* CTRL-X is "-d */
4585# endif
4586# else
4587 {(char_u *)"\316\324 P", NORMAL}, /* SHIFT-Insert is P */
4588 {(char_u *)"\316\324 \"-dP", VISUAL}, /* SHIFT-Insert is "-dP */
4589 {(char_u *)"\316\324 \022\017\"", INSERT}, /* SHIFT-Insert is ^R^O" */
4590 {(char_u *)"\316\325 y", VISUAL}, /* CTRL-Insert is y */
4591 {(char_u *)"\316\327 d", VISUAL}, /* SHIFT-Del is d */
4592 {(char_u *)"\316\330 d", VISUAL}, /* CTRL-Del is d */
4593# endif
4594# endif
4595#endif
4596
4597#if defined(MACOS)
4598 /* Use the Standard MacOS binding. */
4599 /* paste, copy and cut */
4600 {(char_u *)"<D-v> \"*P", NORMAL},
4601 {(char_u *)"<D-v> \"-d\"*P", VISUAL},
4602 {(char_u *)"<D-v> <C-R>*", INSERT+CMDLINE},
4603 {(char_u *)"<D-c> \"*y", VISUAL},
4604 {(char_u *)"<D-x> \"*d", VISUAL},
4605 {(char_u *)"<Backspace> \"-d", VISUAL},
4606#endif
4607
4608 /* Map extra keys to their normal equivalents. */
4609 {(char_u *)"<xF1> <F1>", NORMAL+VISUAL+OP_PENDING},
4610 {(char_u *)"<xF1> <F1>", INSERT+CMDLINE},
4611 {(char_u *)"<xF2> <F2>", NORMAL+VISUAL+OP_PENDING},
4612 {(char_u *)"<xF2> <F2>", INSERT+CMDLINE},
4613 {(char_u *)"<xF3> <F3>", NORMAL+VISUAL+OP_PENDING},
4614 {(char_u *)"<xF3> <F3>", INSERT+CMDLINE},
4615 {(char_u *)"<xF4> <F4>", NORMAL+VISUAL+OP_PENDING},
4616 {(char_u *)"<xF4> <F4>", INSERT+CMDLINE},
4617 {(char_u *)"<S-xF1> <S-F1>", NORMAL+VISUAL+OP_PENDING},
4618 {(char_u *)"<S-xF1> <S-F1>", INSERT+CMDLINE},
4619 {(char_u *)"<S-xF2> <S-F2>", NORMAL+VISUAL+OP_PENDING},
4620 {(char_u *)"<S-xF2> <S-F2>", INSERT+CMDLINE},
4621 {(char_u *)"<S-xF3> <S-F3>", NORMAL+VISUAL+OP_PENDING},
4622 {(char_u *)"<S-xF3> <S-F3>", INSERT+CMDLINE},
4623 {(char_u *)"<S-xF4> <S-F4>", NORMAL+VISUAL+OP_PENDING},
4624 {(char_u *)"<S-xF4> <S-F4>", INSERT+CMDLINE},
4625 {(char_u *)"<xEND> <END>", NORMAL+VISUAL+OP_PENDING},
4626 {(char_u *)"<xEND> <END>", INSERT+CMDLINE},
4627 {(char_u *)"<xHOME> <HOME>", NORMAL+VISUAL+OP_PENDING},
4628 {(char_u *)"<xHOME> <HOME>", INSERT+CMDLINE},
4629};
4630
4631/*
4632 * Set up default mappings.
4633 */
4634 void
4635init_mappings()
4636{
4637 int i;
4638
4639 for (i = 0; i < sizeof(initmappings) / sizeof(struct initmap); ++i)
4640 add_map(initmappings[i].arg, initmappings[i].mode);
4641}
4642
4643/*
4644 * Add a mapping "map" for mode "mode".
4645 * Need to put string in allocated memory, because do_map() will modify it.
4646 */
4647 void
4648add_map(map, mode)
4649 char_u *map;
4650 int mode;
4651{
4652 char_u *s;
4653 char_u *cpo_save = p_cpo;
4654
4655 p_cpo = (char_u *)""; /* Allow <> notation */
4656 s = vim_strsave(map);
4657 if (s != NULL)
4658 {
4659 (void)do_map(0, s, mode, FALSE);
4660 vim_free(s);
4661 }
4662 p_cpo = cpo_save;
4663}