?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
Remove unnecessary include paths in Makefile
[MacVim.git] / src / ex_getln.c
blob7e7b19238fe9f5b17d9f02880066e6d824c340ea
1 /* vi:set ts=8 sts=4 sw=4:
2 *
3 * VIM - Vi IMproved by Bram Moolenaar
4 *
5 * Do ":help uganda" in Vim to read copying and usage conditions.
6 * Do ":help credits" in Vim to see a list of people who contributed.
7 * See README.txt for an overview of the Vim source code.
8 */
9
10 /*
11 * ex_getln.c: Functions for entering and editing an Ex command line.
12 */
13
14 #include "vim.h"
15
16 /*
17 * Variables shared between getcmdline(), redrawcmdline() and others.
18 * These need to be saved when using CTRL-R |, that's why they are in a
19 * structure.
20 */
21 struct cmdline_info
22 {
23 char_u *cmdbuff; /* pointer to command line buffer */
24 int cmdbufflen; /* length of cmdbuff */
25 int cmdlen; /* number of chars in command line */
26 int cmdpos; /* current cursor position */
27 int cmdspos; /* cursor column on screen */
28 int cmdfirstc; /* ':', '/', '?', '=' or NUL */
29 int cmdindent; /* number of spaces before cmdline */
30 char_u *cmdprompt; /* message in front of cmdline */
31 int cmdattr; /* attributes for prompt */
32 int overstrike; /* Typing mode on the command line. Shared by
33 getcmdline() and put_on_cmdline(). */
34 expand_T *xpc; /* struct being used for expansion, xp_pattern
35 may point into cmdbuff */
36 int xp_context; /* type of expansion */
37 # ifdef FEAT_EVAL
38 char_u *xp_arg; /* user-defined expansion arg */
39 int input_fn; /* when TRUE Invoked for input() function */
40 # endif
41 };
42
43 /* The current cmdline_info. It is initialized in getcmdline() and after that
44 * used by other functions. When invoking getcmdline() recursively it needs
45 * to be saved with save_cmdline() and restored with restore_cmdline().
46 * TODO: make it local to getcmdline() and pass it around. */
47 static struct cmdline_info ccline;
48
49 static int cmd_showtail; /* Only show path tail in lists ? */
50
51 #ifdef FEAT_EVAL
52 static int new_cmdpos; /* position set by set_cmdline_pos() */
53 #endif
54
55 #ifdef FEAT_CMDHIST
56 typedef struct hist_entry
57 {
58 int hisnum; /* identifying number */
59 char_u *hisstr; /* actual entry, separator char after the NUL */
60 } histentry_T;
61
62 static histentry_T *(history[HIST_COUNT]) = {NULL, NULL, NULL, NULL, NULL};
63 static int hisidx[HIST_COUNT] = {-1, -1, -1, -1, -1}; /* lastused entry */
64 static int hisnum[HIST_COUNT] = {0, 0, 0, 0, 0};
65 /* identifying (unique) number of newest history entry */
66 static int hislen = 0; /* actual length of history tables */
67
68 static int hist_char2type __ARGS((int c));
69
70 static int in_history __ARGS((int, char_u *, int));
71 # ifdef FEAT_EVAL
72 static int calc_hist_idx __ARGS((int histype, int num));
73 # endif
74 #endif
75
76 #ifdef FEAT_RIGHTLEFT
77 static int cmd_hkmap = 0; /* Hebrew mapping during command line */
78 #endif
79
80 #ifdef FEAT_FKMAP
81 static int cmd_fkmap = 0; /* Farsi mapping during command line */
82 #endif
83
84 static int cmdline_charsize __ARGS((int idx));
85 static void set_cmdspos __ARGS((void));
86 static void set_cmdspos_cursor __ARGS((void));
87 #ifdef FEAT_MBYTE
88 static void correct_cmdspos __ARGS((int idx, int cells));
89 #endif
90 static void alloc_cmdbuff __ARGS((int len));
91 static int realloc_cmdbuff __ARGS((int len));
92 static void draw_cmdline __ARGS((int start, int len));
93 static void save_cmdline __ARGS((struct cmdline_info *ccp));
94 static void restore_cmdline __ARGS((struct cmdline_info *ccp));
95 static int cmdline_paste __ARGS((int regname, int literally, int remcr));
96 #if defined(FEAT_XIM) && (defined(FEAT_GUI_GTK) || defined(FEAT_GUI_MACVIM))
97 static void redrawcmd_preedit __ARGS((void));
98 #endif
99 #ifdef FEAT_WILDMENU
100 static void cmdline_del __ARGS((int from));
101 #endif
102 static void redrawcmdprompt __ARGS((void));
103 static void cursorcmd __ARGS((void));
104 static int ccheck_abbr __ARGS((int));
105 static int nextwild __ARGS((expand_T *xp, int type, int options));
106 static void escape_fname __ARGS((char_u **pp));
107 static int showmatches __ARGS((expand_T *xp, int wildmenu));
108 static void set_expand_context __ARGS((expand_T *xp));
109 static int ExpandFromContext __ARGS((expand_T *xp, char_u *, int *, char_u ***, int));
110 static int expand_showtail __ARGS((expand_T *xp));
111 #ifdef FEAT_CMDL_COMPL
112 static int expand_shellcmd __ARGS((char_u *filepat, int *num_file, char_u ***file, int flagsarg));
113 static int ExpandRTDir __ARGS((char_u *pat, int *num_file, char_u ***file, char *dirname));
114 # if defined(FEAT_USR_CMDS) && defined(FEAT_EVAL)
115 static int ExpandUserDefined __ARGS((expand_T *xp, regmatch_T *regmatch, int *num_file, char_u ***file));
116 static int ExpandUserList __ARGS((expand_T *xp, int *num_file, char_u ***file));
117 # endif
118 #endif
119
120 #ifdef FEAT_CMDWIN
121 static int ex_window __ARGS((void));
122 #endif
123
124 /*
125 * getcmdline() - accept a command line starting with firstc.
126 *
127 * firstc == ':' get ":" command line.
128 * firstc == '/' or '?' get search pattern
129 * firstc == '=' get expression
130 * firstc == '@' get text for input() function
131 * firstc == '>' get text for debug mode
132 * firstc == NUL get text for :insert command
133 * firstc == -1 like NUL, and break on CTRL-C
134 *
135 * The line is collected in ccline.cmdbuff, which is reallocated to fit the
136 * command line.
137 *
138 * Careful: getcmdline() can be called recursively!
139 *
140 * Return pointer to allocated string if there is a commandline, NULL
141 * otherwise.
142 */
143 char_u *
144 getcmdline(firstc, count, indent)
145 int firstc;
146 long count UNUSED; /* only used for incremental search */
147 int indent; /* indent for inside conditionals */
148 {
149 int c;
150 int i;
151 int j;
152 int gotesc = FALSE; /* TRUE when <ESC> just typed */
153 int do_abbr; /* when TRUE check for abbr. */
154 #ifdef FEAT_CMDHIST
155 char_u *lookfor = NULL; /* string to match */
156 int hiscnt; /* current history line in use */
157 int histype; /* history type to be used */
158 #endif
159 #ifdef FEAT_SEARCH_EXTRA
160 pos_T old_cursor;
161 colnr_T old_curswant;
162 colnr_T old_leftcol;
163 linenr_T old_topline;
164 # ifdef FEAT_DIFF
165 int old_topfill;
166 # endif
167 linenr_T old_botline;
168 int did_incsearch = FALSE;
169 int incsearch_postponed = FALSE;
170 #endif
171 int did_wild_list = FALSE; /* did wild_list() recently */
172 int wim_index = 0; /* index in wim_flags[] */
173 int res;
174 int save_msg_scroll = msg_scroll;
175 int save_State = State; /* remember State when called */
176 int some_key_typed = FALSE; /* one of the keys was typed */
177 #ifdef FEAT_MOUSE
178 /* mouse drag and release events are ignored, unless they are
179 * preceded with a mouse down event */
180 int ignore_drag_release = TRUE;
181 #endif
182 #ifdef FEAT_EVAL
183 int break_ctrl_c = FALSE;
184 #endif
185 expand_T xpc;
186 long *b_im_ptr = NULL;
187 #if defined(FEAT_WILDMENU) || defined(FEAT_EVAL) || defined(FEAT_SEARCH_EXTRA)
188 /* Everything that may work recursively should save and restore the
189 * current command line in save_ccline. That includes update_screen(), a
190 * custom status line may invoke ":normal". */
191 struct cmdline_info save_ccline;
192 #endif
193
194 #ifdef FEAT_SNIFF
195 want_sniff_request = 0;
196 #endif
197 #ifdef FEAT_EVAL
198 if (firstc == -1)
199 {
200 firstc = NUL;
201 break_ctrl_c = TRUE;
202 }
203 #endif
204 #ifdef FEAT_RIGHTLEFT
205 /* start without Hebrew mapping for a command line */
206 if (firstc == ':' || firstc == '=' || firstc == '>')
207 cmd_hkmap = 0;
208 #endif
209
210 ccline.overstrike = FALSE; /* always start in insert mode */
211 #ifdef FEAT_SEARCH_EXTRA
212 old_cursor = curwin->w_cursor; /* needs to be restored later */
213 old_curswant = curwin->w_curswant;
214 old_leftcol = curwin->w_leftcol;
215 old_topline = curwin->w_topline;
216 # ifdef FEAT_DIFF
217 old_topfill = curwin->w_topfill;
218 # endif
219 old_botline = curwin->w_botline;
220 #endif
221
222 /*
223 * set some variables for redrawcmd()
224 */
225 ccline.cmdfirstc = (firstc == '@' ? 0 : firstc);
226 ccline.cmdindent = (firstc > 0 ? indent : 0);
227
228 /* alloc initial ccline.cmdbuff */
229 alloc_cmdbuff(exmode_active ? 250 : indent + 1);
230 if (ccline.cmdbuff == NULL)
231 return NULL; /* out of memory */
232 ccline.cmdlen = ccline.cmdpos = 0;
233 ccline.cmdbuff[0] = NUL;
234
235 /* autoindent for :insert and :append */
236 if (firstc <= 0)
237 {
238 copy_spaces(ccline.cmdbuff, indent);
239 ccline.cmdbuff[indent] = NUL;
240 ccline.cmdpos = indent;
241 ccline.cmdspos = indent;
242 ccline.cmdlen = indent;
243 }
244
245 ExpandInit(&xpc);
246 ccline.xpc = &xpc;
247
248 #ifdef FEAT_RIGHTLEFT
249 if (curwin->w_p_rl && *curwin->w_p_rlc == 's'
250 && (firstc == '/' || firstc == '?'))
251 cmdmsg_rl = TRUE;
252 else
253 cmdmsg_rl = FALSE;
254 #endif
255
256 redir_off = TRUE; /* don't redirect the typed command */
257 if (!cmd_silent)
258 {
259 i = msg_scrolled;
260 msg_scrolled = 0; /* avoid wait_return message */
261 gotocmdline(TRUE);
262 msg_scrolled += i;
263 redrawcmdprompt(); /* draw prompt or indent */
264 set_cmdspos();
265 }
266 xpc.xp_context = EXPAND_NOTHING;
267 xpc.xp_backslash = XP_BS_NONE;
268 #ifndef BACKSLASH_IN_FILENAME
269 xpc.xp_shell = FALSE;
270 #endif
271
272 #if defined(FEAT_EVAL)
273 if (ccline.input_fn)
274 {
275 xpc.xp_context = ccline.xp_context;
276 xpc.xp_pattern = ccline.cmdbuff;
277 # if defined(FEAT_USR_CMDS) && defined(FEAT_CMDL_COMPL)
278 xpc.xp_arg = ccline.xp_arg;
279 # endif
280 }
281 #endif
282
283 /*
284 * Avoid scrolling when called by a recursive do_cmdline(), e.g. when
285 * doing ":@0" when register 0 doesn't contain a CR.
286 */
287 msg_scroll = FALSE;
288
289 State = CMDLINE;
290
291 if (firstc == '/' || firstc == '?' || firstc == '@')
292 {
293 /* Use ":lmap" mappings for search pattern and input(). */
294 if (curbuf->b_p_imsearch == B_IMODE_USE_INSERT)
295 b_im_ptr = &curbuf->b_p_iminsert;
296 else
297 b_im_ptr = &curbuf->b_p_imsearch;
298 if (*b_im_ptr == B_IMODE_LMAP)
299 State |= LANGMAP;
300 #ifdef USE_IM_CONTROL
301 im_set_active(*b_im_ptr == B_IMODE_IM);
302 #endif
303 }
304 #ifdef USE_IM_CONTROL
305 else if (p_imcmdline)
306 im_set_active(TRUE);
307 #endif
308
309 #ifdef FEAT_MOUSE
310 setmouse();
311 #endif
312 #ifdef CURSOR_SHAPE
313 ui_cursor_shape(); /* may show different cursor shape */
314 #endif
315
316 /* When inside an autocommand for writing "exiting" may be set and
317 * terminal mode set to cooked. Need to set raw mode here then. */
318 settmode(TMODE_RAW);
319
320 #ifdef FEAT_CMDHIST
321 init_history();
322 hiscnt = hislen; /* set hiscnt to impossible history value */
323 histype = hist_char2type(firstc);
324 #endif
325
326 #ifdef FEAT_DIGRAPHS
327 do_digraph(-1); /* init digraph typeahead */
328 #endif
329
330 /*
331 * Collect the command string, handling editing keys.
332 */
333 for (;;)
334 {
335 redir_off = TRUE; /* Don't redirect the typed command.
336 Repeated, because a ":redir" inside
337 completion may switch it on. */
338 #ifdef USE_ON_FLY_SCROLL
339 dont_scroll = FALSE; /* allow scrolling here */
340 #endif
341 quit_more = FALSE; /* reset after CTRL-D which had a more-prompt */
342
343 cursorcmd(); /* set the cursor on the right spot */
344
345 /* Get a character. Ignore K_IGNORE, it should not do anything, such
346 * as stop completion. */
347 do
348 {
349 c = safe_vgetc();
350 } while (c == K_IGNORE);
351
352 if (KeyTyped)
353 {
354 some_key_typed = TRUE;
355 #ifdef FEAT_RIGHTLEFT
356 if (cmd_hkmap)
357 c = hkmap(c);
358 # ifdef FEAT_FKMAP
359 if (cmd_fkmap)
360 c = cmdl_fkmap(c);
361 # endif
362 if (cmdmsg_rl && !KeyStuffed)
363 {
364 /* Invert horizontal movements and operations. Only when
365 * typed by the user directly, not when the result of a
366 * mapping. */
367 switch (c)
368 {
369 case K_RIGHT: c = K_LEFT; break;
370 case K_S_RIGHT: c = K_S_LEFT; break;
371 case K_C_RIGHT: c = K_C_LEFT; break;
372 case K_LEFT: c = K_RIGHT; break;
373 case K_S_LEFT: c = K_S_RIGHT; break;
374 case K_C_LEFT: c = K_C_RIGHT; break;
375 }
376 }
377 #endif
378 }
379
380 /*
381 * Ignore got_int when CTRL-C was typed here.
382 * Don't ignore it in :global, we really need to break then, e.g., for
383 * ":g/pat/normal /pat" (without the <CR>).
384 * Don't ignore it for the input() function.
385 */
386 if ((c == Ctrl_C
387 #ifdef UNIX
388 || c == intr_char
389 #endif
390 )
391 #if defined(FEAT_EVAL) || defined(FEAT_CRYPT)
392 && firstc != '@'
393 #endif
394 #ifdef FEAT_EVAL
395 && !break_ctrl_c
396 #endif
397 && !global_busy)
398 got_int = FALSE;
399
400 #ifdef FEAT_CMDHIST
401 /* free old command line when finished moving around in the history
402 * list */
403 if (lookfor != NULL
404 && c != K_S_DOWN && c != K_S_UP
405 && c != K_DOWN && c != K_UP
406 && c != K_PAGEDOWN && c != K_PAGEUP
407 && c != K_KPAGEDOWN && c != K_KPAGEUP
408 && c != K_LEFT && c != K_RIGHT
409 && (xpc.xp_numfiles > 0 || (c != Ctrl_P && c != Ctrl_N)))
410 {
411 vim_free(lookfor);
412 lookfor = NULL;
413 }
414 #endif
415
416 /*
417 * When there are matching completions to select <S-Tab> works like
418 * CTRL-P (unless 'wc' is <S-Tab>).
419 */
420 if (c != p_wc && c == K_S_TAB && xpc.xp_numfiles > 0)
421 c = Ctrl_P;
422
423 #ifdef FEAT_WILDMENU
424 /* Special translations for 'wildmenu' */
425 if (did_wild_list && p_wmnu)
426 {
427 if (c == K_LEFT)
428 c = Ctrl_P;
429 else if (c == K_RIGHT)
430 c = Ctrl_N;
431 }
432 /* Hitting CR after "emenu Name.": complete submenu */
433 if (xpc.xp_context == EXPAND_MENUNAMES && p_wmnu
434 && ccline.cmdpos > 1
435 && ccline.cmdbuff[ccline.cmdpos - 1] == '.'
436 && ccline.cmdbuff[ccline.cmdpos - 2] != '\\'
437 && (c == '\n' || c == '\r' || c == K_KENTER))
438 c = K_DOWN;
439 #endif
440
441 /* free expanded names when finished walking through matches */
442 if (xpc.xp_numfiles != -1
443 && !(c == p_wc && KeyTyped) && c != p_wcm
444 && c != Ctrl_N && c != Ctrl_P && c != Ctrl_A
445 && c != Ctrl_L)
446 {
447 (void)ExpandOne(&xpc, NULL, NULL, 0, WILD_FREE);
448 did_wild_list = FALSE;
449 #ifdef FEAT_WILDMENU
450 if (!p_wmnu || (c != K_UP && c != K_DOWN))
451 #endif
452 xpc.xp_context = EXPAND_NOTHING;
453 wim_index = 0;
454 #ifdef FEAT_WILDMENU
455 if (p_wmnu && wild_menu_showing != 0)
456 {
457 int skt = KeyTyped;
458 int old_RedrawingDisabled = RedrawingDisabled;
459
460 if (ccline.input_fn)
461 RedrawingDisabled = 0;
462
463 if (wild_menu_showing == WM_SCROLLED)
464 {
465 /* Entered command line, move it up */
466 cmdline_row--;
467 redrawcmd();
468 }
469 else if (save_p_ls != -1)
470 {
471 /* restore 'laststatus' and 'winminheight' */
472 p_ls = save_p_ls;
473 p_wmh = save_p_wmh;
474 last_status(FALSE);
475 save_cmdline(&save_ccline);
476 update_screen(VALID); /* redraw the screen NOW */
477 restore_cmdline(&save_ccline);
478 redrawcmd();
479 save_p_ls = -1;
480 }
481 else
482 {
483 # ifdef FEAT_VERTSPLIT
484 win_redraw_last_status(topframe);
485 # else
486 lastwin->w_redr_status = TRUE;
487 # endif
488 redraw_statuslines();
489 }
490 KeyTyped = skt;
491 wild_menu_showing = 0;
492 if (ccline.input_fn)
493 RedrawingDisabled = old_RedrawingDisabled;
494 }
495 #endif
496 }
497
498 #ifdef FEAT_WILDMENU
499 /* Special translations for 'wildmenu' */
500 if (xpc.xp_context == EXPAND_MENUNAMES && p_wmnu)
501 {
502 /* Hitting <Down> after "emenu Name.": complete submenu */
503 if (c == K_DOWN && ccline.cmdpos > 0
504 && ccline.cmdbuff[ccline.cmdpos - 1] == '.')
505 c = p_wc;
506 else if (c == K_UP)
507 {
508 /* Hitting <Up>: Remove one submenu name in front of the
509 * cursor */
510 int found = FALSE;
511
512 j = (int)(xpc.xp_pattern - ccline.cmdbuff);
513 i = 0;
514 while (--j > 0)
515 {
516 /* check for start of menu name */
517 if (ccline.cmdbuff[j] == ' '
518 && ccline.cmdbuff[j - 1] != '\\')
519 {
520 i = j + 1;
521 break;
522 }
523 /* check for start of submenu name */
524 if (ccline.cmdbuff[j] == '.'
525 && ccline.cmdbuff[j - 1] != '\\')
526 {
527 if (found)
528 {
529 i = j + 1;
530 break;
531 }
532 else
533 found = TRUE;
534 }
535 }
536 if (i > 0)
537 cmdline_del(i);
538 c = p_wc;
539 xpc.xp_context = EXPAND_NOTHING;
540 }
541 }
542 if ((xpc.xp_context == EXPAND_FILES
543 || xpc.xp_context == EXPAND_DIRECTORIES
544 || xpc.xp_context == EXPAND_SHELLCMD) && p_wmnu)
545 {
546 char_u upseg[5];
547
548 upseg[0] = PATHSEP;
549 upseg[1] = '.';
550 upseg[2] = '.';
551 upseg[3] = PATHSEP;
552 upseg[4] = NUL;
553
554 if (c == K_DOWN
555 && ccline.cmdpos > 0
556 && ccline.cmdbuff[ccline.cmdpos - 1] == PATHSEP
557 && (ccline.cmdpos < 3
558 || ccline.cmdbuff[ccline.cmdpos - 2] != '.'
559 || ccline.cmdbuff[ccline.cmdpos - 3] != '.'))
560 {
561 /* go down a directory */
562 c = p_wc;
563 }
564 else if (STRNCMP(xpc.xp_pattern, upseg + 1, 3) == 0 && c == K_DOWN)
565 {
566 /* If in a direct ancestor, strip off one ../ to go down */
567 int found = FALSE;
568
569 j = ccline.cmdpos;
570 i = (int)(xpc.xp_pattern - ccline.cmdbuff);
571 while (--j > i)
572 {
573 #ifdef FEAT_MBYTE
574 if (has_mbyte)
575 j -= (*mb_head_off)(ccline.cmdbuff, ccline.cmdbuff + j);
576 #endif
577 if (vim_ispathsep(ccline.cmdbuff[j]))
578 {
579 found = TRUE;
580 break;
581 }
582 }
583 if (found
584 && ccline.cmdbuff[j - 1] == '.'
585 && ccline.cmdbuff[j - 2] == '.'
586 && (vim_ispathsep(ccline.cmdbuff[j - 3]) || j == i + 2))
587 {
588 cmdline_del(j - 2);
589 c = p_wc;
590 }
591 }
592 else if (c == K_UP)
593 {
594 /* go up a directory */
595 int found = FALSE;
596
597 j = ccline.cmdpos - 1;
598 i = (int)(xpc.xp_pattern - ccline.cmdbuff);
599 while (--j > i)
600 {
601 #ifdef FEAT_MBYTE
602 if (has_mbyte)
603 j -= (*mb_head_off)(ccline.cmdbuff, ccline.cmdbuff + j);
604 #endif
605 if (vim_ispathsep(ccline.cmdbuff[j])
606 #ifdef BACKSLASH_IN_FILENAME
607 && vim_strchr(" *?[{`$%#", ccline.cmdbuff[j + 1])
608 == NULL
609 #endif
610 )
611 {
612 if (found)
613 {
614 i = j + 1;
615 break;
616 }
617 else
618 found = TRUE;
619 }
620 }
621
622 if (!found)
623 j = i;
624 else if (STRNCMP(ccline.cmdbuff + j, upseg, 4) == 0)
625 j += 4;
626 else if (STRNCMP(ccline.cmdbuff + j, upseg + 1, 3) == 0
627 && j == i)
628 j += 3;
629 else
630 j = 0;
631 if (j > 0)
632 {
633 /* TODO this is only for DOS/UNIX systems - need to put in
634 * machine-specific stuff here and in upseg init */
635 cmdline_del(j);
636 put_on_cmdline(upseg + 1, 3, FALSE);
637 }
638 else if (ccline.cmdpos > i)
639 cmdline_del(i);
640 c = p_wc;
641 }
642 }
643 #if 0 /* If enabled <Down> on a file takes you _completely_ out of wildmenu */
644 if (p_wmnu
645 && (xpc.xp_context == EXPAND_FILES
646 || xpc.xp_context == EXPAND_MENUNAMES)
647 && (c == K_UP || c == K_DOWN))
648 xpc.xp_context = EXPAND_NOTHING;
649 #endif
650
651 #endif /* FEAT_WILDMENU */
652
653 /* CTRL-\ CTRL-N goes to Normal mode, CTRL-\ CTRL-G goes to Insert
654 * mode when 'insertmode' is set, CTRL-\ e prompts for an expression. */
655 if (c == Ctrl_BSL)
656 {
657 ++no_mapping;
658 ++allow_keys;
659 c = plain_vgetc();
660 --no_mapping;
661 --allow_keys;
662 /* CTRL-\ e doesn't work when obtaining an expression. */
663 if (c != Ctrl_N && c != Ctrl_G
664 && (c != 'e' || ccline.cmdfirstc == '='))
665 {
666 vungetc(c);
667 c = Ctrl_BSL;
668 }
669 #ifdef FEAT_EVAL
670 else if (c == 'e')
671 {
672 char_u *p = NULL;
673
674 /*
675 * Replace the command line with the result of an expression.
676 * Need to save and restore the current command line, to be
677 * able to enter a new one...
678 */
679 if (ccline.cmdpos == ccline.cmdlen)
680 new_cmdpos = 99999; /* keep it at the end */
681 else
682 new_cmdpos = ccline.cmdpos;
683
684 save_cmdline(&save_ccline);
685 c = get_expr_register();
686 restore_cmdline(&save_ccline);
687 if (c == '=')
688 {
689 /* Need to save and restore ccline. And set "textlock"
690 * to avoid nasty things like going to another buffer when
691 * evaluating an expression. */
692 save_cmdline(&save_ccline);
693 ++textlock;
694 p = get_expr_line();
695 --textlock;
696 restore_cmdline(&save_ccline);
697
698 if (p != NULL && realloc_cmdbuff((int)STRLEN(p) + 1) == OK)
699 {
700 ccline.cmdlen = (int)STRLEN(p);
701 STRCPY(ccline.cmdbuff, p);
702 vim_free(p);
703
704 /* Restore the cursor or use the position set with
705 * set_cmdline_pos(). */
706 if (new_cmdpos > ccline.cmdlen)
707 ccline.cmdpos = ccline.cmdlen;
708 else
709 ccline.cmdpos = new_cmdpos;
710
711 KeyTyped = FALSE; /* Don't do p_wc completion. */
712 redrawcmd();
713 goto cmdline_changed;
714 }
715 }
716 beep_flush();
717 c = ESC;
718 }
719 #endif
720 else
721 {
722 if (c == Ctrl_G && p_im && restart_edit == 0)
723 restart_edit = 'a';
724 gotesc = TRUE; /* will free ccline.cmdbuff after putting it
725 in history */
726 goto returncmd; /* back to Normal mode */
727 }
728 }
729
730 #ifdef FEAT_CMDWIN
731 if (c == cedit_key || c == K_CMDWIN)
732 {
733 /*
734 * Open a window to edit the command line (and history).
735 */
736 c = ex_window();
737 some_key_typed = TRUE;
738 }
739 # ifdef FEAT_DIGRAPHS
740 else
741 # endif
742 #endif
743 #ifdef FEAT_DIGRAPHS
744 c = do_digraph(c);
745 #endif
746
747 if (c == '\n' || c == '\r' || c == K_KENTER || (c == ESC
748 && (!KeyTyped || vim_strchr(p_cpo, CPO_ESC) != NULL)))
749 {
750 /* In Ex mode a backslash escapes a newline. */
751 if (exmode_active
752 && c != ESC
753 && ccline.cmdpos == ccline.cmdlen
754 && ccline.cmdpos > 0
755 && ccline.cmdbuff[ccline.cmdpos - 1] == '\\')
756 {
757 if (c == K_KENTER)
758 c = '\n';
759 }
760 else
761 {
762 gotesc = FALSE; /* Might have typed ESC previously, don't
763 truncate the cmdline now. */
764 if (ccheck_abbr(c + ABBR_OFF))
765 goto cmdline_changed;
766 if (!cmd_silent)
767 {
768 windgoto(msg_row, 0);
769 out_flush();
770 }
771 break;
772 }
773 }
774
775 /*
776 * Completion for 'wildchar' or 'wildcharm' key.
777 * - hitting <ESC> twice means: abandon command line.
778 * - wildcard expansion is only done when the 'wildchar' key is really
779 * typed, not when it comes from a macro
780 */
781 if ((c == p_wc && !gotesc && KeyTyped) || c == p_wcm)
782 {
783 if (xpc.xp_numfiles > 0) /* typed p_wc at least twice */
784 {
785 /* if 'wildmode' contains "list" may still need to list */
786 if (xpc.xp_numfiles > 1
787 && !did_wild_list
788 && (wim_flags[wim_index] & WIM_LIST))
789 {
790 (void)showmatches(&xpc, FALSE);
791 redrawcmd();
792 did_wild_list = TRUE;
793 }
794 if (wim_flags[wim_index] & WIM_LONGEST)
795 res = nextwild(&xpc, WILD_LONGEST, WILD_NO_BEEP);
796 else if (wim_flags[wim_index] & WIM_FULL)
797 res = nextwild(&xpc, WILD_NEXT, WILD_NO_BEEP);
798 else
799 res = OK; /* don't insert 'wildchar' now */
800 }
801 else /* typed p_wc first time */
802 {
803 wim_index = 0;
804 j = ccline.cmdpos;
805 /* if 'wildmode' first contains "longest", get longest
806 * common part */
807 if (wim_flags[0] & WIM_LONGEST)
808 res = nextwild(&xpc, WILD_LONGEST, WILD_NO_BEEP);
809 else
810 res = nextwild(&xpc, WILD_EXPAND_KEEP, WILD_NO_BEEP);
811
812 /* if interrupted while completing, behave like it failed */
813 if (got_int)
814 {
815 (void)vpeekc(); /* remove <C-C> from input stream */
816 got_int = FALSE; /* don't abandon the command line */
817 (void)ExpandOne(&xpc, NULL, NULL, 0, WILD_FREE);
818 #ifdef FEAT_WILDMENU
819 xpc.xp_context = EXPAND_NOTHING;
820 #endif
821 goto cmdline_changed;
822 }
823
824 /* when more than one match, and 'wildmode' first contains
825 * "list", or no change and 'wildmode' contains "longest,list",
826 * list all matches */
827 if (res == OK && xpc.xp_numfiles > 1)
828 {
829 /* a "longest" that didn't do anything is skipped (but not
830 * "list:longest") */
831 if (wim_flags[0] == WIM_LONGEST && ccline.cmdpos == j)
832 wim_index = 1;
833 if ((wim_flags[wim_index] & WIM_LIST)
834 #ifdef FEAT_WILDMENU
835 || (p_wmnu && (wim_flags[wim_index] & WIM_FULL) != 0)
836 #endif
837 )
838 {
839 if (!(wim_flags[0] & WIM_LONGEST))
840 {
841 #ifdef FEAT_WILDMENU
842 int p_wmnu_save = p_wmnu;
843 p_wmnu = 0;
844 #endif
845 nextwild(&xpc, WILD_PREV, 0); /* remove match */
846 #ifdef FEAT_WILDMENU
847 p_wmnu = p_wmnu_save;
848 #endif
849 }
850 #ifdef FEAT_WILDMENU
851 (void)showmatches(&xpc, p_wmnu
852 && ((wim_flags[wim_index] & WIM_LIST) == 0));
853 #else
854 (void)showmatches(&xpc, FALSE);
855 #endif
856 redrawcmd();
857 did_wild_list = TRUE;
858 if (wim_flags[wim_index] & WIM_LONGEST)
859 nextwild(&xpc, WILD_LONGEST, WILD_NO_BEEP);
860 else if (wim_flags[wim_index] & WIM_FULL)
861 nextwild(&xpc, WILD_NEXT, WILD_NO_BEEP);
862 }
863 else
864 vim_beep();
865 }
866 #ifdef FEAT_WILDMENU
867 else if (xpc.xp_numfiles == -1)
868 xpc.xp_context = EXPAND_NOTHING;
869 #endif
870 }
871 if (wim_index < 3)
872 ++wim_index;
873 if (c == ESC)
874 gotesc = TRUE;
875 if (res == OK)
876 goto cmdline_changed;
877 }
878
879 gotesc = FALSE;
880
881 /* <S-Tab> goes to last match, in a clumsy way */
882 if (c == K_S_TAB && KeyTyped)
883 {
884 if (nextwild(&xpc, WILD_EXPAND_KEEP, 0) == OK
885 && nextwild(&xpc, WILD_PREV, 0) == OK
886 && nextwild(&xpc, WILD_PREV, 0) == OK)
887 goto cmdline_changed;
888 }
889
890 if (c == NUL || c == K_ZERO) /* NUL is stored as NL */
891 c = NL;
892
893 do_abbr = TRUE; /* default: check for abbreviation */
894
895 /*
896 * Big switch for a typed command line character.
897 */
898 switch (c)
899 {
900 case K_BS:
901 case Ctrl_H:
902 case K_DEL:
903 case K_KDEL:
904 case Ctrl_W:
905 #ifdef FEAT_FKMAP
906 if (cmd_fkmap && c == K_BS)
907 c = K_DEL;
908 #endif
909 if (c == K_KDEL)
910 c = K_DEL;
911
912 /*
913 * delete current character is the same as backspace on next
914 * character, except at end of line
915 */
916 if (c == K_DEL && ccline.cmdpos != ccline.cmdlen)
917 ++ccline.cmdpos;
918 #ifdef FEAT_MBYTE
919 if (has_mbyte && c == K_DEL)
920 ccline.cmdpos += mb_off_next(ccline.cmdbuff,
921 ccline.cmdbuff + ccline.cmdpos);
922 #endif
923 if (ccline.cmdpos > 0)
924 {
925 char_u *p;
926
927 j = ccline.cmdpos;
928 p = ccline.cmdbuff + j;
929 #ifdef FEAT_MBYTE
930 if (has_mbyte)
931 {
932 p = mb_prevptr(ccline.cmdbuff, p);
933 if (c == Ctrl_W)
934 {
935 while (p > ccline.cmdbuff && vim_isspace(*p))
936 p = mb_prevptr(ccline.cmdbuff, p);
937 i = mb_get_class(p);
938 while (p > ccline.cmdbuff && mb_get_class(p) == i)
939 p = mb_prevptr(ccline.cmdbuff, p);
940 if (mb_get_class(p) != i)
941 p += (*mb_ptr2len)(p);
942 }
943 }
944 else
945 #endif
946 if (c == Ctrl_W)
947 {
948 while (p > ccline.cmdbuff && vim_isspace(p[-1]))
949 --p;
950 i = vim_iswordc(p[-1]);
951 while (p > ccline.cmdbuff && !vim_isspace(p[-1])
952 && vim_iswordc(p[-1]) == i)
953 --p;
954 }
955 else
956 --p;
957 ccline.cmdpos = (int)(p - ccline.cmdbuff);
958 ccline.cmdlen -= j - ccline.cmdpos;
959 i = ccline.cmdpos;
960 while (i < ccline.cmdlen)
961 ccline.cmdbuff[i++] = ccline.cmdbuff[j++];
962
963 /* Truncate at the end, required for multi-byte chars. */
964 ccline.cmdbuff[ccline.cmdlen] = NUL;
965 redrawcmd();
966 }
967 else if (ccline.cmdlen == 0 && c != Ctrl_W
968 && ccline.cmdprompt == NULL && indent == 0)
969 {
970 /* In ex and debug mode it doesn't make sense to return. */
971 if (exmode_active
972 #ifdef FEAT_EVAL
973 || ccline.cmdfirstc == '>'
974 #endif
975 )
976 goto cmdline_not_changed;
977
978 vim_free(ccline.cmdbuff); /* no commandline to return */
979 ccline.cmdbuff = NULL;
980 if (!cmd_silent)
981 {
982 #ifdef FEAT_RIGHTLEFT
983 if (cmdmsg_rl)
984 msg_col = Columns;
985 else
986 #endif
987 msg_col = 0;
988 msg_putchar(' '); /* delete ':' */
989 }
990 redraw_cmdline = TRUE;
991 goto returncmd; /* back to cmd mode */
992 }
993 goto cmdline_changed;
994
995 case K_INS:
996 case K_KINS:
997 #ifdef FEAT_FKMAP
998 /* if Farsi mode set, we are in reverse insert mode -
999 Do not change the mode */
1000 if (cmd_fkmap)
1001 beep_flush();
1002 else
1003 #endif
1004 ccline.overstrike = !ccline.overstrike;
1005 #ifdef CURSOR_SHAPE
1006 ui_cursor_shape(); /* may show different cursor shape */
1007 #endif
1008 goto cmdline_not_changed;
1009
1010 case Ctrl_HAT:
1011 if (map_to_exists_mode((char_u *)"", LANGMAP, FALSE))
1012 {
1013 /* ":lmap" mappings exists, toggle use of mappings. */
1014 State ^= LANGMAP;
1015 #ifdef USE_IM_CONTROL
1016 im_set_active(FALSE); /* Disable input method */
1017 #endif
1018 if (b_im_ptr != NULL)
1019 {
1020 if (State & LANGMAP)
1021 *b_im_ptr = B_IMODE_LMAP;
1022 else
1023 *b_im_ptr = B_IMODE_NONE;
1024 }
1025 }
1026 #ifdef USE_IM_CONTROL
1027 else
1028 {
1029 /* There are no ":lmap" mappings, toggle IM. When
1030 * 'imdisable' is set don't try getting the status, it's
1031 * always off. */
1032 if ((p_imdisable && b_im_ptr != NULL)
1033 ? *b_im_ptr == B_IMODE_IM : im_get_status())
1034 {
1035 im_set_active(FALSE); /* Disable input method */
1036 if (b_im_ptr != NULL)
1037 *b_im_ptr = B_IMODE_NONE;
1038 }
1039 else
1040 {
1041 im_set_active(TRUE); /* Enable input method */
1042 if (b_im_ptr != NULL)
1043 *b_im_ptr = B_IMODE_IM;
1044 }
1045 }
1046 #endif
1047 if (b_im_ptr != NULL)
1048 {
1049 if (b_im_ptr == &curbuf->b_p_iminsert)
1050 set_iminsert_global();
1051 else
1052 set_imsearch_global();
1053 }
1054 #ifdef CURSOR_SHAPE
1055 ui_cursor_shape(); /* may show different cursor shape */
1056 #endif
1057 #if defined(FEAT_WINDOWS) && defined(FEAT_KEYMAP)
1058 /* Show/unshow value of 'keymap' in status lines later. */
1059 status_redraw_curbuf();
1060 #endif
1061 goto cmdline_not_changed;
1062
1063 /* case '@': only in very old vi */
1064 case Ctrl_U:
1065 /* delete all characters left of the cursor */
1066 j = ccline.cmdpos;
1067 ccline.cmdlen -= j;
1068 i = ccline.cmdpos = 0;
1069 while (i < ccline.cmdlen)
1070 ccline.cmdbuff[i++] = ccline.cmdbuff[j++];
1071 /* Truncate at the end, required for multi-byte chars. */
1072 ccline.cmdbuff[ccline.cmdlen] = NUL;
1073 redrawcmd();
1074 goto cmdline_changed;
1075
1076 #ifdef FEAT_CLIPBOARD
1077 case Ctrl_Y:
1078 /* Copy the modeless selection, if there is one. */
1079 if (clip_star.state != SELECT_CLEARED)
1080 {
1081 if (clip_star.state == SELECT_DONE)
1082 clip_copy_modeless_selection(TRUE);
1083 goto cmdline_not_changed;
1084 }
1085 break;
1086 #endif
1087
1088 case ESC: /* get here if p_wc != ESC or when ESC typed twice */
1089 case Ctrl_C:
1090 /* In exmode it doesn't make sense to return. Except when
1091 * ":normal" runs out of characters. */
1092 if (exmode_active
1093 #ifdef FEAT_EX_EXTRA
1094 && (ex_normal_busy == 0 || typebuf.tb_len > 0)
1095 #endif
1096 )
1097 goto cmdline_not_changed;
1098
1099 gotesc = TRUE; /* will free ccline.cmdbuff after
1100 putting it in history */
1101 goto returncmd; /* back to cmd mode */
1102
1103 case Ctrl_R: /* insert register */
1104 #ifdef USE_ON_FLY_SCROLL
1105 dont_scroll = TRUE; /* disallow scrolling here */
1106 #endif
1107 putcmdline('"', TRUE);
1108 ++no_mapping;
1109 i = c = plain_vgetc(); /* CTRL-R <char> */
1110 if (i == Ctrl_O)
1111 i = Ctrl_R; /* CTRL-R CTRL-O == CTRL-R CTRL-R */
1112 if (i == Ctrl_R)
1113 c = plain_vgetc(); /* CTRL-R CTRL-R <char> */
1114 --no_mapping;
1115 #ifdef FEAT_EVAL
1116 /*
1117 * Insert the result of an expression.
1118 * Need to save the current command line, to be able to enter
1119 * a new one...
1120 */
1121 new_cmdpos = -1;
1122 if (c == '=')
1123 {
1124 if (ccline.cmdfirstc == '=')/* can't do this recursively */
1125 {
1126 beep_flush();
1127 c = ESC;
1128 }
1129 else
1130 {
1131 save_cmdline(&save_ccline);
1132 c = get_expr_register();
1133 restore_cmdline(&save_ccline);
1134 }
1135 }
1136 #endif
1137 if (c != ESC) /* use ESC to cancel inserting register */
1138 {
1139 cmdline_paste(c, i == Ctrl_R, FALSE);
1140
1141 #ifdef FEAT_EVAL
1142 /* When there was a serious error abort getting the
1143 * command line. */
1144 if (aborting())
1145 {
1146 gotesc = TRUE; /* will free ccline.cmdbuff after
1147 putting it in history */
1148 goto returncmd; /* back to cmd mode */
1149 }
1150 #endif
1151 KeyTyped = FALSE; /* Don't do p_wc completion. */
1152 #ifdef FEAT_EVAL
1153 if (new_cmdpos >= 0)
1154 {
1155 /* set_cmdline_pos() was used */
1156 if (new_cmdpos > ccline.cmdlen)
1157 ccline.cmdpos = ccline.cmdlen;
1158 else
1159 ccline.cmdpos = new_cmdpos;
1160 }
1161 #endif
1162 }
1163 redrawcmd();
1164 goto cmdline_changed;
1165
1166 case Ctrl_D:
1167 if (showmatches(&xpc, FALSE) == EXPAND_NOTHING)
1168 break; /* Use ^D as normal char instead */
1169
1170 redrawcmd();
1171 continue; /* don't do incremental search now */
1172
1173 case K_RIGHT:
1174 case K_S_RIGHT:
1175 case K_C_RIGHT:
1176 do
1177 {
1178 if (ccline.cmdpos >= ccline.cmdlen)
1179 break;
1180 i = cmdline_charsize(ccline.cmdpos);
1181 if (KeyTyped && ccline.cmdspos + i >= Columns * Rows)
1182 break;
1183 ccline.cmdspos += i;
1184 #ifdef FEAT_MBYTE
1185 if (has_mbyte)
1186 ccline.cmdpos += (*mb_ptr2len)(ccline.cmdbuff
1187 + ccline.cmdpos);
1188 else
1189 #endif
1190 ++ccline.cmdpos;
1191 }
1192 while ((c == K_S_RIGHT || c == K_C_RIGHT
1193 || (mod_mask & (MOD_MASK_SHIFT|MOD_MASK_CTRL)))
1194 && ccline.cmdbuff[ccline.cmdpos] != ' ');
1195 #ifdef FEAT_MBYTE
1196 if (has_mbyte)
1197 set_cmdspos_cursor();
1198 #endif
1199 goto cmdline_not_changed;
1200
1201 case K_LEFT:
1202 case K_S_LEFT:
1203 case K_C_LEFT:
1204 if (ccline.cmdpos == 0)
1205 goto cmdline_not_changed;
1206 do
1207 {
1208 --ccline.cmdpos;
1209 #ifdef FEAT_MBYTE
1210 if (has_mbyte) /* move to first byte of char */
1211 ccline.cmdpos -= (*mb_head_off)(ccline.cmdbuff,
1212 ccline.cmdbuff + ccline.cmdpos);
1213 #endif
1214 ccline.cmdspos -= cmdline_charsize(ccline.cmdpos);
1215 }
1216 while (ccline.cmdpos > 0
1217 && (c == K_S_LEFT || c == K_C_LEFT
1218 || (mod_mask & (MOD_MASK_SHIFT|MOD_MASK_CTRL)))
1219 && ccline.cmdbuff[ccline.cmdpos - 1] != ' ');
1220 #ifdef FEAT_MBYTE
1221 if (has_mbyte)
1222 set_cmdspos_cursor();
1223 #endif
1224 goto cmdline_not_changed;
1225
1226 case K_IGNORE:
1227 /* Ignore mouse event or ex_window() result. */
1228 goto cmdline_not_changed;
1229
1230 #ifdef FEAT_GUI_W32
1231 /* On Win32 ignore <M-F4>, we get it when closing the window was
1232 * cancelled. */
1233 case K_F4:
1234 if (mod_mask == MOD_MASK_ALT)
1235 {
1236 redrawcmd(); /* somehow the cmdline is cleared */
1237 goto cmdline_not_changed;
1238 }
1239 break;
1240 #endif
1241
1242 #ifdef FEAT_MOUSE
1243 case K_MIDDLEDRAG:
1244 case K_MIDDLERELEASE:
1245 goto cmdline_not_changed; /* Ignore mouse */
1246
1247 case K_MIDDLEMOUSE:
1248 # ifdef FEAT_GUI
1249 /* When GUI is active, also paste when 'mouse' is empty */
1250 if (!gui.in_use)
1251 # endif
1252 if (!mouse_has(MOUSE_COMMAND))
1253 goto cmdline_not_changed; /* Ignore mouse */
1254 # ifdef FEAT_CLIPBOARD
1255 if (clip_star.available)
1256 cmdline_paste('*', TRUE, TRUE);
1257 else
1258 # endif
1259 cmdline_paste(0, TRUE, TRUE);
1260 redrawcmd();
1261 goto cmdline_changed;
1262
1263 # ifdef FEAT_DND
1264 case K_DROP:
1265 cmdline_paste('~', TRUE, FALSE);
1266 redrawcmd();
1267 goto cmdline_changed;
1268 # endif
1269
1270 case K_LEFTDRAG:
1271 case K_LEFTRELEASE:
1272 case K_RIGHTDRAG:
1273 case K_RIGHTRELEASE:
1274 /* Ignore drag and release events when the button-down wasn't
1275 * seen before. */
1276 if (ignore_drag_release)
1277 goto cmdline_not_changed;
1278 /* FALLTHROUGH */
1279 case K_LEFTMOUSE:
1280 case K_RIGHTMOUSE:
1281 if (c == K_LEFTRELEASE || c == K_RIGHTRELEASE)
1282 ignore_drag_release = TRUE;
1283 else
1284 ignore_drag_release = FALSE;
1285 # ifdef FEAT_GUI
1286 /* When GUI is active, also move when 'mouse' is empty */
1287 if (!gui.in_use)
1288 # endif
1289 if (!mouse_has(MOUSE_COMMAND))
1290 goto cmdline_not_changed; /* Ignore mouse */
1291 # ifdef FEAT_CLIPBOARD
1292 if (mouse_row < cmdline_row && clip_star.available)
1293 {
1294 int button, is_click, is_drag;
1295
1296 /*
1297 * Handle modeless selection.
1298 */
1299 button = get_mouse_button(KEY2TERMCAP1(c),
1300 &is_click, &is_drag);
1301 if (mouse_model_popup() && button == MOUSE_LEFT
1302 && (mod_mask & MOD_MASK_SHIFT))
1303 {
1304 /* Translate shift-left to right button. */
1305 button = MOUSE_RIGHT;
1306 mod_mask &= ~MOD_MASK_SHIFT;
1307 }
1308 clip_modeless(button, is_click, is_drag);
1309 goto cmdline_not_changed;
1310 }
1311 # endif
1312
1313 set_cmdspos();
1314 for (ccline.cmdpos = 0; ccline.cmdpos < ccline.cmdlen;
1315 ++ccline.cmdpos)
1316 {
1317 i = cmdline_charsize(ccline.cmdpos);
1318 if (mouse_row <= cmdline_row + ccline.cmdspos / Columns
1319 && mouse_col < ccline.cmdspos % Columns + i)
1320 break;
1321 # ifdef FEAT_MBYTE
1322 if (has_mbyte)
1323 {
1324 /* Count ">" for double-wide char that doesn't fit. */
1325 correct_cmdspos(ccline.cmdpos, i);
1326 ccline.cmdpos += (*mb_ptr2len)(ccline.cmdbuff
1327 + ccline.cmdpos) - 1;
1328 }
1329 # endif
1330 ccline.cmdspos += i;
1331 }
1332 goto cmdline_not_changed;
1333
1334 /* Mouse scroll wheel: ignored here */
1335 case K_MOUSEDOWN:
1336 case K_MOUSEUP:
1337 /* Alternate buttons ignored here */
1338 case K_X1MOUSE:
1339 case K_X1DRAG:
1340 case K_X1RELEASE:
1341 case K_X2MOUSE:
1342 case K_X2DRAG:
1343 case K_X2RELEASE:
1344 goto cmdline_not_changed;
1345
1346 #endif /* FEAT_MOUSE */
1347
1348 #ifdef FEAT_GUI
1349 case K_LEFTMOUSE_NM: /* mousefocus click, ignored */
1350 case K_LEFTRELEASE_NM:
1351 goto cmdline_not_changed;
1352
1353 case K_VER_SCROLLBAR:
1354 if (msg_scrolled == 0)
1355 {
1356 gui_do_scroll();
1357 redrawcmd();
1358 }
1359 goto cmdline_not_changed;
1360
1361 case K_HOR_SCROLLBAR:
1362 if (msg_scrolled == 0)
1363 {
1364 gui_do_horiz_scroll();
1365 redrawcmd();
1366 }
1367 goto cmdline_not_changed;
1368 #endif
1369 #ifdef FEAT_GUI_TABLINE
1370 case K_TABLINE:
1371 case K_TABMENU:
1372 /* Don't want to change any tabs here. Make sure the same tab
1373 * is still selected. */
1374 if (gui_use_tabline())
1375 gui_mch_set_curtab(tabpage_index(curtab));
1376 goto cmdline_not_changed;
1377 #endif
1378
1379 case K_SELECT: /* end of Select mode mapping - ignore */
1380 goto cmdline_not_changed;
1381
1382 case Ctrl_B: /* begin of command line */
1383 case K_HOME:
1384 case K_KHOME:
1385 case K_S_HOME:
1386 case K_C_HOME:
1387 ccline.cmdpos = 0;
1388 set_cmdspos();
1389 goto cmdline_not_changed;
1390
1391 case Ctrl_E: /* end of command line */
1392 case K_END:
1393 case K_KEND:
1394 case K_S_END:
1395 case K_C_END:
1396 ccline.cmdpos = ccline.cmdlen;
1397 set_cmdspos_cursor();
1398 goto cmdline_not_changed;
1399
1400 case Ctrl_A: /* all matches */
1401 if (nextwild(&xpc, WILD_ALL, 0) == FAIL)
1402 break;
1403 goto cmdline_changed;
1404
1405 case Ctrl_L:
1406 #ifdef FEAT_SEARCH_EXTRA
1407 if (p_is && !cmd_silent && (firstc == '/' || firstc == '?'))
1408 {
1409 /* Add a character from under the cursor for 'incsearch' */
1410 if (did_incsearch
1411 && !equalpos(curwin->w_cursor, old_cursor))
1412 {
1413 c = gchar_cursor();
1414 if (c != NUL)
1415 {
1416 if (c == firstc || vim_strchr((char_u *)(
1417 p_magic ? "\\^$.*[" : "\\^$"), c)
1418 != NULL)
1419 {
1420 /* put a backslash before special characters */
1421 stuffcharReadbuff(c);
1422 c = '\\';
1423 }
1424 break;
1425 }
1426 }
1427 goto cmdline_not_changed;
1428 }
1429 #endif
1430
1431 /* completion: longest common part */
1432 if (nextwild(&xpc, WILD_LONGEST, 0) == FAIL)
1433 break;
1434 goto cmdline_changed;
1435
1436 case Ctrl_N: /* next match */
1437 case Ctrl_P: /* previous match */
1438 if (xpc.xp_numfiles > 0)
1439 {
1440 if (nextwild(&xpc, (c == Ctrl_P) ? WILD_PREV : WILD_NEXT, 0)
1441 == FAIL)
1442 break;
1443 goto cmdline_changed;
1444 }
1445
1446 #ifdef FEAT_CMDHIST
1447 case K_UP:
1448 case K_DOWN:
1449 case K_S_UP:
1450 case K_S_DOWN:
1451 case K_PAGEUP:
1452 case K_KPAGEUP:
1453 case K_PAGEDOWN:
1454 case K_KPAGEDOWN:
1455 if (hislen == 0 || firstc == NUL) /* no history */
1456 goto cmdline_not_changed;
1457
1458 i = hiscnt;
1459
1460 /* save current command string so it can be restored later */
1461 if (lookfor == NULL)
1462 {
1463 if ((lookfor = vim_strsave(ccline.cmdbuff)) == NULL)
1464 goto cmdline_not_changed;
1465 lookfor[ccline.cmdpos] = NUL;
1466 }
1467
1468 j = (int)STRLEN(lookfor);
1469 for (;;)
1470 {
1471 /* one step backwards */
1472 if (c == K_UP|| c == K_S_UP || c == Ctrl_P
1473 || c == K_PAGEUP || c == K_KPAGEUP)
1474 {
1475 if (hiscnt == hislen) /* first time */
1476 hiscnt = hisidx[histype];
1477 else if (hiscnt == 0 && hisidx[histype] != hislen - 1)
1478 hiscnt = hislen - 1;
1479 else if (hiscnt != hisidx[histype] + 1)
1480 --hiscnt;
1481 else /* at top of list */
1482 {
1483 hiscnt = i;
1484 break;
1485 }
1486 }
1487 else /* one step forwards */
1488 {
1489 /* on last entry, clear the line */
1490 if (hiscnt == hisidx[histype])
1491 {
1492 hiscnt = hislen;
1493 break;
1494 }
1495
1496 /* not on a history line, nothing to do */
1497 if (hiscnt == hislen)
1498 break;
1499 if (hiscnt == hislen - 1) /* wrap around */
1500 hiscnt = 0;
1501 else
1502 ++hiscnt;
1503 }
1504 if (hiscnt < 0 || history[histype][hiscnt].hisstr == NULL)
1505 {
1506 hiscnt = i;
1507 break;
1508 }
1509 if ((c != K_UP && c != K_DOWN)
1510 || hiscnt == i
1511 || STRNCMP(history[histype][hiscnt].hisstr,
1512 lookfor, (size_t)j) == 0)
1513 break;
1514 }
1515
1516 if (hiscnt != i) /* jumped to other entry */
1517 {
1518 char_u *p;
1519 int len;
1520 int old_firstc;
1521
1522 vim_free(ccline.cmdbuff);
1523 xpc.xp_context = EXPAND_NOTHING;
1524 if (hiscnt == hislen)
1525 p = lookfor; /* back to the old one */
1526 else
1527 p = history[histype][hiscnt].hisstr;
1528
1529 if (histype == HIST_SEARCH
1530 && p != lookfor
1531 && (old_firstc = p[STRLEN(p) + 1]) != firstc)
1532 {
1533 /* Correct for the separator character used when
1534 * adding the history entry vs the one used now.
1535 * First loop: count length.
1536 * Second loop: copy the characters. */
1537 for (i = 0; i <= 1; ++i)
1538 {
1539 len = 0;
1540 for (j = 0; p[j] != NUL; ++j)
1541 {
1542 /* Replace old sep with new sep, unless it is
1543 * escaped. */
1544 if (p[j] == old_firstc
1545 && (j == 0 || p[j - 1] != '\\'))
1546 {
1547 if (i > 0)
1548 ccline.cmdbuff[len] = firstc;
1549 }
1550 else
1551 {
1552 /* Escape new sep, unless it is already
1553 * escaped. */
1554 if (p[j] == firstc
1555 && (j == 0 || p[j - 1] != '\\'))
1556 {
1557 if (i > 0)
1558 ccline.cmdbuff[len] = '\\';
1559 ++len;
1560 }
1561 if (i > 0)
1562 ccline.cmdbuff[len] = p[j];
1563 }
1564 ++len;
1565 }
1566 if (i == 0)
1567 {
1568 alloc_cmdbuff(len);
1569 if (ccline.cmdbuff == NULL)
1570 goto returncmd;
1571 }
1572 }
1573 ccline.cmdbuff[len] = NUL;
1574 }
1575 else
1576 {
1577 alloc_cmdbuff((int)STRLEN(p));
1578 if (ccline.cmdbuff == NULL)
1579 goto returncmd;
1580 STRCPY(ccline.cmdbuff, p);
1581 }
1582
1583 ccline.cmdpos = ccline.cmdlen = (int)STRLEN(ccline.cmdbuff);
1584 redrawcmd();
1585 goto cmdline_changed;
1586 }
1587 beep_flush();
1588 goto cmdline_not_changed;
1589 #endif
1590
1591 case Ctrl_V:
1592 case Ctrl_Q:
1593 #ifdef FEAT_MOUSE
1594 ignore_drag_release = TRUE;
1595 #endif
1596 putcmdline('^', TRUE);
1597 c = get_literal(); /* get next (two) character(s) */
1598 do_abbr = FALSE; /* don't do abbreviation now */
1599 #ifdef FEAT_MBYTE
1600 /* may need to remove ^ when composing char was typed */
1601 if (enc_utf8 && utf_iscomposing(c) && !cmd_silent)
1602 {
1603 draw_cmdline(ccline.cmdpos, ccline.cmdlen - ccline.cmdpos);
1604 msg_putchar(' ');
1605 cursorcmd();
1606 }
1607 #endif
1608 break;
1609
1610 #ifdef FEAT_DIGRAPHS
1611 case Ctrl_K:
1612 #ifdef FEAT_MOUSE
1613 ignore_drag_release = TRUE;
1614 #endif
1615 putcmdline('?', TRUE);
1616 #ifdef USE_ON_FLY_SCROLL
1617 dont_scroll = TRUE; /* disallow scrolling here */
1618 #endif
1619 c = get_digraph(TRUE);
1620 if (c != NUL)
1621 break;
1622
1623 redrawcmd();
1624 goto cmdline_not_changed;
1625 #endif /* FEAT_DIGRAPHS */
1626
1627 #ifdef FEAT_RIGHTLEFT
1628 case Ctrl__: /* CTRL-_: switch language mode */
1629 if (!p_ari)
1630 break;
1631 #ifdef FEAT_FKMAP
1632 if (p_altkeymap)
1633 {
1634 cmd_fkmap = !cmd_fkmap;
1635 if (cmd_fkmap) /* in Farsi always in Insert mode */
1636 ccline.overstrike = FALSE;
1637 }
1638 else /* Hebrew is default */
1639 #endif
1640 cmd_hkmap = !cmd_hkmap;
1641 goto cmdline_not_changed;
1642 #endif
1643
1644 default:
1645 #ifdef UNIX
1646 if (c == intr_char)
1647 {
1648 gotesc = TRUE; /* will free ccline.cmdbuff after
1649 putting it in history */
1650 goto returncmd; /* back to Normal mode */
1651 }
1652 #endif
1653 /*
1654 * Normal character with no special meaning. Just set mod_mask
1655 * to 0x0 so that typing Shift-Space in the GUI doesn't enter
1656 * the string <S-Space>. This should only happen after ^V.
1657 */
1658 if (!IS_SPECIAL(c))
1659 mod_mask = 0x0;
1660 break;
1661 }
1662 /*
1663 * End of switch on command line character.
1664 * We come here if we have a normal character.
1665 */
1666
1667 if (do_abbr && (IS_SPECIAL(c) || !vim_iswordc(c)) && ccheck_abbr(
1668 #ifdef FEAT_MBYTE
1669 /* Add ABBR_OFF for characters above 0x100, this is
1670 * what check_abbr() expects. */
1671 (has_mbyte && c >= 0x100) ? (c + ABBR_OFF) :
1672 #endif
1673 c))
1674 goto cmdline_changed;
1675
1676 /*
1677 * put the character in the command line
1678 */
1679 if (IS_SPECIAL(c) || mod_mask != 0)
1680 put_on_cmdline(get_special_key_name(c, mod_mask), -1, TRUE);
1681 else
1682 {
1683 #ifdef FEAT_MBYTE
1684 if (has_mbyte)
1685 {
1686 j = (*mb_char2bytes)(c, IObuff);
1687 IObuff[j] = NUL; /* exclude composing chars */
1688 put_on_cmdline(IObuff, j, TRUE);
1689 }
1690 else
1691 #endif
1692 {
1693 IObuff[0] = c;
1694 put_on_cmdline(IObuff, 1, TRUE);
1695 }
1696 }
1697 goto cmdline_changed;
1698
1699 /*
1700 * This part implements incremental searches for "/" and "?"
1701 * Jump to cmdline_not_changed when a character has been read but the command
1702 * line did not change. Then we only search and redraw if something changed in
1703 * the past.
1704 * Jump to cmdline_changed when the command line did change.
1705 * (Sorry for the goto's, I know it is ugly).
1706 */
1707 cmdline_not_changed:
1708 #ifdef FEAT_SEARCH_EXTRA
1709 if (!incsearch_postponed)
1710 continue;
1711 #endif
1712
1713 cmdline_changed:
1714 #ifdef FEAT_SEARCH_EXTRA
1715 /*
1716 * 'incsearch' highlighting.
1717 */
1718 if (p_is && !cmd_silent && (firstc == '/' || firstc == '?'))
1719 {
1720 pos_T end_pos;
1721 #ifdef FEAT_RELTIME
1722 proftime_T tm;
1723 #endif
1724
1725 /* if there is a character waiting, search and redraw later */
1726 if (char_avail())
1727 {
1728 incsearch_postponed = TRUE;
1729 continue;
1730 }
1731 incsearch_postponed = FALSE;
1732 curwin->w_cursor = old_cursor; /* start at old position */
1733
1734 /* If there is no command line, don't do anything */
1735 if (ccline.cmdlen == 0)
1736 i = 0;
1737 else
1738 {
1739 cursor_off(); /* so the user knows we're busy */
1740 out_flush();
1741 ++emsg_off; /* So it doesn't beep if bad expr */
1742 #ifdef FEAT_RELTIME
1743 /* Set the time limit to half a second. */
1744 profile_setlimit(500L, &tm);
1745 #endif
1746 i = do_search(NULL, firstc, ccline.cmdbuff, count,
1747 SEARCH_KEEP + SEARCH_OPT + SEARCH_NOOF + SEARCH_PEEK,
1748 #ifdef FEAT_RELTIME
1749 &tm
1750 #else
1751 NULL
1752 #endif
1753 );
1754 --emsg_off;
1755 /* if interrupted while searching, behave like it failed */
1756 if (got_int)
1757 {
1758 (void)vpeekc(); /* remove <C-C> from input stream */
1759 got_int = FALSE; /* don't abandon the command line */
1760 i = 0;
1761 }
1762 else if (char_avail())
1763 /* cancelled searching because a char was typed */
1764 incsearch_postponed = TRUE;
1765 }
1766 if (i != 0)
1767 highlight_match = TRUE; /* highlight position */
1768 else
1769 highlight_match = FALSE; /* remove highlight */
1770
1771 /* first restore the old curwin values, so the screen is
1772 * positioned in the same way as the actual search command */
1773 curwin->w_leftcol = old_leftcol;
1774 curwin->w_topline = old_topline;
1775 # ifdef FEAT_DIFF
1776 curwin->w_topfill = old_topfill;
1777 # endif
1778 curwin->w_botline = old_botline;
1779 changed_cline_bef_curs();
1780 update_topline();
1781
1782 if (i != 0)
1783 {
1784 pos_T save_pos = curwin->w_cursor;
1785
1786 /*
1787 * First move cursor to end of match, then to the start. This
1788 * moves the whole match onto the screen when 'nowrap' is set.
1789 */
1790 curwin->w_cursor.lnum += search_match_lines;
1791 curwin->w_cursor.col = search_match_endcol;
1792 if (curwin->w_cursor.lnum > curbuf->b_ml.ml_line_count)
1793 {
1794 curwin->w_cursor.lnum = curbuf->b_ml.ml_line_count;
1795 coladvance((colnr_T)MAXCOL);
1796 }
1797 validate_cursor();
1798 end_pos = curwin->w_cursor;
1799 curwin->w_cursor = save_pos;
1800 }
1801 else
1802 end_pos = curwin->w_cursor; /* shutup gcc 4 */
1803
1804 validate_cursor();
1805 # ifdef FEAT_WINDOWS
1806 /* May redraw the status line to show the cursor position. */
1807 if (p_ru && curwin->w_status_height > 0)
1808 curwin->w_redr_status = TRUE;
1809 # endif
1810
1811 save_cmdline(&save_ccline);
1812 update_screen(SOME_VALID);
1813 restore_cmdline(&save_ccline);
1814
1815 /* Leave it at the end to make CTRL-R CTRL-W work. */
1816 if (i != 0)
1817 curwin->w_cursor = end_pos;
1818
1819 msg_starthere();
1820 redrawcmdline();
1821 did_incsearch = TRUE;
1822 }
1823 #else /* FEAT_SEARCH_EXTRA */
1824 ;
1825 #endif
1826
1827 #ifdef FEAT_RIGHTLEFT
1828 if (cmdmsg_rl
1829 # ifdef FEAT_ARABIC
1830 || (p_arshape && !p_tbidi && enc_utf8)
1831 # endif
1832 )
1833 /* Always redraw the whole command line to fix shaping and
1834 * right-left typing. Not efficient, but it works. */
1835 redrawcmd();
1836 #endif
1837 }
1838
1839 returncmd:
1840
1841 #ifdef FEAT_RIGHTLEFT
1842 cmdmsg_rl = FALSE;
1843 #endif
1844
1845 #ifdef FEAT_FKMAP
1846 cmd_fkmap = 0;
1847 #endif
1848
1849 ExpandCleanup(&xpc);
1850 ccline.xpc = NULL;
1851
1852 #ifdef FEAT_SEARCH_EXTRA
1853 if (did_incsearch)
1854 {
1855 curwin->w_cursor = old_cursor;
1856 curwin->w_curswant = old_curswant;
1857 curwin->w_leftcol = old_leftcol;
1858 curwin->w_topline = old_topline;
1859 # ifdef FEAT_DIFF
1860 curwin->w_topfill = old_topfill;
1861 # endif
1862 curwin->w_botline = old_botline;
1863 highlight_match = FALSE;
1864 validate_cursor(); /* needed for TAB */
1865 redraw_later(SOME_VALID);
1866 }
1867 #endif
1868
1869 if (ccline.cmdbuff != NULL)
1870 {
1871 /*
1872 * Put line in history buffer (":" and "=" only when it was typed).
1873 */
1874 #ifdef FEAT_CMDHIST
1875 if (ccline.cmdlen && firstc != NUL
1876 && (some_key_typed || histype == HIST_SEARCH))
1877 {
1878 add_to_history(histype, ccline.cmdbuff, TRUE,
1879 histype == HIST_SEARCH ? firstc : NUL);
1880 if (firstc == ':')
1881 {
1882 vim_free(new_last_cmdline);
1883 new_last_cmdline = vim_strsave(ccline.cmdbuff);
1884 }
1885 }
1886 #endif
1887
1888 if (gotesc) /* abandon command line */
1889 {
1890 vim_free(ccline.cmdbuff);
1891 ccline.cmdbuff = NULL;
1892 if (msg_scrolled == 0)
1893 compute_cmdrow();
1894 MSG("");
1895 redraw_cmdline = TRUE;
1896 }
1897 }
1898
1899 /*
1900 * If the screen was shifted up, redraw the whole screen (later).
1901 * If the line is too long, clear it, so ruler and shown command do
1902 * not get printed in the middle of it.
1903 */
1904 msg_check();
1905 msg_scroll = save_msg_scroll;
1906 redir_off = FALSE;
1907
1908 /* When the command line was typed, no need for a wait-return prompt. */
1909 if (some_key_typed)
1910 need_wait_return = FALSE;
1911
1912 State = save_State;
1913 #ifdef USE_IM_CONTROL
1914 if (b_im_ptr != NULL && *b_im_ptr != B_IMODE_LMAP)
1915 im_save_status(b_im_ptr);
1916 im_set_active(FALSE);
1917 #endif
1918 #ifdef FEAT_MOUSE
1919 setmouse();
1920 #endif
1921 #ifdef CURSOR_SHAPE
1922 ui_cursor_shape(); /* may show different cursor shape */
1923 #endif
1924
1925 {
1926 char_u *p = ccline.cmdbuff;
1927
1928 /* Make ccline empty, getcmdline() may try to use it. */
1929 ccline.cmdbuff = NULL;
1930 return p;
1931 }
1932 }
1933
1934 #if (defined(FEAT_CRYPT) || defined(FEAT_EVAL)) || defined(PROTO)
1935 /*
1936 * Get a command line with a prompt.
1937 * This is prepared to be called recursively from getcmdline() (e.g. by
1938 * f_input() when evaluating an expression from CTRL-R =).
1939 * Returns the command line in allocated memory, or NULL.
1940 */
1941 char_u *
1942 getcmdline_prompt(firstc, prompt, attr, xp_context, xp_arg)
1943 int firstc;
1944 char_u *prompt; /* command line prompt */
1945 int attr; /* attributes for prompt */
1946 int xp_context; /* type of expansion */
1947 char_u *xp_arg; /* user-defined expansion argument */
1948 {
1949 char_u *s;
1950 struct cmdline_info save_ccline;
1951 int msg_col_save = msg_col;
1952
1953 save_cmdline(&save_ccline);
1954 ccline.cmdprompt = prompt;
1955 ccline.cmdattr = attr;
1956 # ifdef FEAT_EVAL
1957 ccline.xp_context = xp_context;
1958 ccline.xp_arg = xp_arg;
1959 ccline.input_fn = (firstc == '@');
1960 # endif
1961 s = getcmdline(firstc, 1L, 0);
1962 restore_cmdline(&save_ccline);
1963 /* Restore msg_col, the prompt from input() may have changed it. */
1964 msg_col = msg_col_save;
1965
1966 return s;
1967 }
1968 #endif
1969
1970 /*
1971 * Return TRUE when the text must not be changed and we can't switch to
1972 * another window or buffer. Used when editing the command line, evaluating
1973 * 'balloonexpr', etc.
1974 */
1975 int
1976 text_locked()
1977 {
1978 #ifdef FEAT_CMDWIN
1979 if (cmdwin_type != 0)
1980 return TRUE;
1981 #endif
1982 return textlock != 0;
1983 }
1984
1985 /*
1986 * Give an error message for a command that isn't allowed while the cmdline
1987 * window is open or editing the cmdline in another way.
1988 */
1989 void
1990 text_locked_msg()
1991 {
1992 #ifdef FEAT_CMDWIN
1993 if (cmdwin_type != 0)
1994 EMSG(_(e_cmdwin));
1995 else
1996 #endif
1997 EMSG(_(e_secure));
1998 }
1999
2000 #if defined(FEAT_AUTOCMD) || defined(PROTO)
2001 /*
2002 * Check if "curbuf_lock" or "allbuf_lock" is set and return TRUE when it is
2003 * and give an error message.
2004 */
2005 int
2006 curbuf_locked()
2007 {
2008 if (curbuf_lock > 0)
2009 {
2010 EMSG(_("E788: Not allowed to edit another buffer now"));
2011 return TRUE;
2012 }
2013 return allbuf_locked();
2014 }
2015
2016 /*
2017 * Check if "allbuf_lock" is set and return TRUE when it is and give an error
2018 * message.
2019 */
2020 int
2021 allbuf_locked()
2022 {
2023 if (allbuf_lock > 0)
2024 {
2025 EMSG(_("E811: Not allowed to change buffer information now"));
2026 return TRUE;
2027 }
2028 return FALSE;
2029 }
2030 #endif
2031
2032 static int
2033 cmdline_charsize(idx)
2034 int idx;
2035 {
2036 #if defined(FEAT_CRYPT) || defined(FEAT_EVAL)
2037 if (cmdline_star > 0) /* showing '*', always 1 position */
2038 return 1;
2039 #endif
2040 return ptr2cells(ccline.cmdbuff + idx);
2041 }
2042
2043 /*
2044 * Compute the offset of the cursor on the command line for the prompt and
2045 * indent.
2046 */
2047 static void
2048 set_cmdspos()
2049 {
2050 if (ccline.cmdfirstc != NUL)
2051 ccline.cmdspos = 1 + ccline.cmdindent;
2052 else
2053 ccline.cmdspos = 0 + ccline.cmdindent;
2054 }
2055
2056 /*
2057 * Compute the screen position for the cursor on the command line.
2058 */
2059 static void
2060 set_cmdspos_cursor()
2061 {
2062 int i, m, c;
2063
2064 set_cmdspos();
2065 if (KeyTyped)
2066 {
2067 m = Columns * Rows;
2068 if (m < 0) /* overflow, Columns or Rows at weird value */
2069 m = MAXCOL;
2070 }
2071 else
2072 m = MAXCOL;
2073 for (i = 0; i < ccline.cmdlen && i < ccline.cmdpos; ++i)
2074 {
2075 c = cmdline_charsize(i);
2076 #ifdef FEAT_MBYTE
2077 /* Count ">" for double-wide multi-byte char that doesn't fit. */
2078 if (has_mbyte)
2079 correct_cmdspos(i, c);
2080 #endif
2081 /* If the cmdline doesn't fit, show cursor on last visible char.
2082 * Don't move the cursor itself, so we can still append. */
2083 if ((ccline.cmdspos += c) >= m)
2084 {
2085 ccline.cmdspos -= c;
2086 break;
2087 }
2088 #ifdef FEAT_MBYTE
2089 if (has_mbyte)
2090 i += (*mb_ptr2len)(ccline.cmdbuff + i) - 1;
2091 #endif
2092 }
2093 }
2094
2095 #ifdef FEAT_MBYTE
2096 /*
2097 * Check if the character at "idx", which is "cells" wide, is a multi-byte
2098 * character that doesn't fit, so that a ">" must be displayed.
2099 */
2100 static void
2101 correct_cmdspos(idx, cells)
2102 int idx;
2103 int cells;
2104 {
2105 if ((*mb_ptr2len)(ccline.cmdbuff + idx) > 1
2106 && (*mb_ptr2cells)(ccline.cmdbuff + idx) > 1
2107 && ccline.cmdspos % Columns + cells > Columns)
2108 ccline.cmdspos++;
2109 }
2110 #endif
2111
2112 /*
2113 * Get an Ex command line for the ":" command.
2114 */
2115 char_u *
2116 getexline(c, cookie, indent)
2117 int c; /* normally ':', NUL for ":append" */
2118 void *cookie UNUSED;
2119 int indent; /* indent for inside conditionals */
2120 {
2121 /* When executing a register, remove ':' that's in front of each line. */
2122 if (exec_from_reg && vpeekc() == ':')
2123 (void)vgetc();
2124 return getcmdline(c, 1L, indent);
2125 }
2126
2127 /*
2128 * Get an Ex command line for Ex mode.
2129 * In Ex mode we only use the OS supplied line editing features and no
2130 * mappings or abbreviations.
2131 * Returns a string in allocated memory or NULL.
2132 */
2133 char_u *
2134 getexmodeline(promptc, cookie, indent)
2135 int promptc; /* normally ':', NUL for ":append" and '?' for
2136 :s prompt */
2137 void *cookie UNUSED;
2138 int indent; /* indent for inside conditionals */
2139 {
2140 garray_T line_ga;
2141 char_u *pend;
2142 int startcol = 0;
2143 int c1 = 0;
2144 int escaped = FALSE; /* CTRL-V typed */
2145 int vcol = 0;
2146 char_u *p;
2147 int prev_char;
2148
2149 /* Switch cursor on now. This avoids that it happens after the "\n", which
2150 * confuses the system function that computes tabstops. */
2151 cursor_on();
2152
2153 /* always start in column 0; write a newline if necessary */
2154 compute_cmdrow();
2155 if ((msg_col || msg_didout) && promptc != '?')
2156 msg_putchar('\n');
2157 if (promptc == ':')
2158 {
2159 /* indent that is only displayed, not in the line itself */
2160 if (p_prompt)
2161 msg_putchar(':');
2162 while (indent-- > 0)
2163 msg_putchar(' ');
2164 startcol = msg_col;
2165 }
2166
2167 ga_init2(&line_ga, 1, 30);
2168
2169 /* autoindent for :insert and :append is in the line itself */
2170 if (promptc <= 0)
2171 {
2172 vcol = indent;
2173 while (indent >= 8)
2174 {
2175 ga_append(&line_ga, TAB);
2176 msg_puts((char_u *)" ");
2177 indent -= 8;
2178 }
2179 while (indent-- > 0)
2180 {
2181 ga_append(&line_ga, ' ');
2182 msg_putchar(' ');
2183 }
2184 }
2185 ++no_mapping;
2186 ++allow_keys;
2187
2188 /*
2189 * Get the line, one character at a time.
2190 */
2191 got_int = FALSE;
2192 while (!got_int)
2193 {
2194 if (ga_grow(&line_ga, 40) == FAIL)
2195 break;
2196 pend = (char_u *)line_ga.ga_data + line_ga.ga_len;
2197
2198 /* Get one character at a time. Don't use inchar(), it can't handle
2199 * special characters. */
2200 prev_char = c1;
2201 c1 = vgetc();
2202
2203 /*
2204 * Handle line editing.
2205 * Previously this was left to the system, putting the terminal in
2206 * cooked mode, but then CTRL-D and CTRL-T can't be used properly.
2207 */
2208 if (got_int)
2209 {
2210 msg_putchar('\n');
2211 break;
2212 }
2213
2214 if (!escaped)
2215 {
2216 /* CR typed means "enter", which is NL */
2217 if (c1 == '\r')
2218 c1 = '\n';
2219
2220 if (c1 == BS || c1 == K_BS
2221 || c1 == DEL || c1 == K_DEL || c1 == K_KDEL)
2222 {
2223 if (line_ga.ga_len > 0)
2224 {
2225 --line_ga.ga_len;
2226 goto redraw;
2227 }
2228 continue;
2229 }
2230
2231 if (c1 == Ctrl_U)
2232 {
2233 msg_col = startcol;
2234 msg_clr_eos();
2235 line_ga.ga_len = 0;
2236 continue;
2237 }
2238
2239 if (c1 == Ctrl_T)
2240 {
2241 p = (char_u *)line_ga.ga_data;
2242 p[line_ga.ga_len] = NUL;
2243 indent = get_indent_str(p, 8);
2244 indent += curbuf->b_p_sw - indent % curbuf->b_p_sw;
2245 add_indent:
2246 while (get_indent_str(p, 8) < indent)
2247 {
2248 char_u *s = skipwhite(p);
2249
2250 ga_grow(&line_ga, 1);
2251 mch_memmove(s + 1, s, line_ga.ga_len - (s - p) + 1);
2252 *s = ' ';
2253 ++line_ga.ga_len;
2254 }
2255 redraw:
2256 /* redraw the line */
2257 msg_col = startcol;
2258 vcol = 0;
2259 for (p = (char_u *)line_ga.ga_data;
2260 p < (char_u *)line_ga.ga_data + line_ga.ga_len; ++p)
2261 {
2262 if (*p == TAB)
2263 {
2264 do
2265 {
2266 msg_putchar(' ');
2267 } while (++vcol % 8);
2268 }
2269 else
2270 {
2271 msg_outtrans_len(p, 1);
2272 vcol += char2cells(*p);
2273 }
2274 }
2275 msg_clr_eos();
2276 windgoto(msg_row, msg_col);
2277 continue;
2278 }
2279
2280 if (c1 == Ctrl_D)
2281 {
2282 /* Delete one shiftwidth. */
2283 p = (char_u *)line_ga.ga_data;
2284 if (prev_char == '0' || prev_char == '^')
2285 {
2286 if (prev_char == '^')
2287 ex_keep_indent = TRUE;
2288 indent = 0;
2289 p[--line_ga.ga_len] = NUL;
2290 }
2291 else
2292 {
2293 p[line_ga.ga_len] = NUL;
2294 indent = get_indent_str(p, 8);
2295 --indent;
2296 indent -= indent % curbuf->b_p_sw;
2297 }
2298 while (get_indent_str(p, 8) > indent)
2299 {
2300 char_u *s = skipwhite(p);
2301
2302 mch_memmove(s - 1, s, line_ga.ga_len - (s - p) + 1);
2303 --line_ga.ga_len;
2304 }
2305 goto add_indent;
2306 }
2307
2308 if (c1 == Ctrl_V || c1 == Ctrl_Q)
2309 {
2310 escaped = TRUE;
2311 continue;
2312 }
2313
2314 /* Ignore special key codes: mouse movement, K_IGNORE, etc. */
2315 if (IS_SPECIAL(c1))
2316 continue;
2317 }
2318
2319 if (IS_SPECIAL(c1))
2320 c1 = '?';
2321 ((char_u *)line_ga.ga_data)[line_ga.ga_len] = c1;
2322 if (c1 == '\n')
2323 msg_putchar('\n');
2324 else if (c1 == TAB)
2325 {
2326 /* Don't use chartabsize(), 'ts' can be different */
2327 do
2328 {
2329 msg_putchar(' ');
2330 } while (++vcol % 8);
2331 }
2332 else
2333 {
2334 msg_outtrans_len(
2335 ((char_u *)line_ga.ga_data) + line_ga.ga_len, 1);
2336 vcol += char2cells(c1);
2337 }
2338 ++line_ga.ga_len;
2339 escaped = FALSE;
2340
2341 windgoto(msg_row, msg_col);
2342 pend = (char_u *)(line_ga.ga_data) + line_ga.ga_len;
2343
2344 /* we are done when a NL is entered, but not when it comes after a
2345 * backslash */
2346 if (line_ga.ga_len > 0 && pend[-1] == '\n'
2347 && (line_ga.ga_len <= 1 || pend[-2] != '\\'))
2348 {
2349 --line_ga.ga_len;
2350 --pend;
2351 *pend = NUL;
2352 break;
2353 }
2354 }
2355
2356 --no_mapping;
2357 --allow_keys;
2358
2359 /* make following messages go to the next line */
2360 msg_didout = FALSE;
2361 msg_col = 0;
2362 if (msg_row < Rows - 1)
2363 ++msg_row;
2364 emsg_on_display = FALSE; /* don't want ui_delay() */
2365
2366 if (got_int)
2367 ga_clear(&line_ga);
2368
2369 return (char_u *)line_ga.ga_data;
2370 }
2371
2372 # if defined(MCH_CURSOR_SHAPE) || defined(FEAT_GUI) \
2373 || defined(FEAT_MOUSESHAPE) || defined(PROTO)
2374 /*
2375 * Return TRUE if ccline.overstrike is on.
2376 */
2377 int
2378 cmdline_overstrike()
2379 {
2380 return ccline.overstrike;
2381 }
2382
2383 /*
2384 * Return TRUE if the cursor is at the end of the cmdline.
2385 */
2386 int
2387 cmdline_at_end()
2388 {
2389 return (ccline.cmdpos >= ccline.cmdlen);
2390 }
2391 #endif
2392
2393 #if (defined(FEAT_XIM) && (defined(FEAT_GUI_GTK) || defined(FEAT_GUI_MACVIM))) \
2394 || defined(PROTO)
2395 /*
2396 * Return the virtual column number at the current cursor position.
2397 * This is used by the IM code to obtain the start of the preedit string.
2398 */
2399 colnr_T
2400 cmdline_getvcol_cursor()
2401 {
2402 if (ccline.cmdbuff == NULL || ccline.cmdpos > ccline.cmdlen)
2403 return MAXCOL;
2404
2405 # ifdef FEAT_MBYTE
2406 if (has_mbyte)
2407 {
2408 colnr_T col;
2409 int i = 0;
2410
2411 for (col = 0; i < ccline.cmdpos; ++col)
2412 i += (*mb_ptr2len)(ccline.cmdbuff + i);
2413
2414 return col;
2415 }
2416 else
2417 # endif
2418 return ccline.cmdpos;
2419 }
2420 #endif
2421
2422 #if defined(FEAT_XIM) && (defined(FEAT_GUI_GTK) || defined(FEAT_GUI_MACVIM))
2423 /*
2424 * If part of the command line is an IM preedit string, redraw it with
2425 * IM feedback attributes. The cursor position is restored after drawing.
2426 */
2427 static void
2428 redrawcmd_preedit()
2429 {
2430 if ((State & CMDLINE)
2431 # ifndef FEAT_GUI_MACVIM
2432 && xic != NULL
2433 # endif
2434 /* && im_get_status() doesn't work when using SCIM */
2435 && !p_imdisable
2436 && im_is_preediting())
2437 {
2438 int cmdpos = 0;
2439 int cmdspos;
2440 int old_row;
2441 int old_col;
2442 colnr_T col;
2443
2444 old_row = msg_row;
2445 old_col = msg_col;
2446 cmdspos = ((ccline.cmdfirstc != NUL) ? 1 : 0) + ccline.cmdindent;
2447
2448 # ifdef FEAT_MBYTE
2449 if (has_mbyte)
2450 {
2451 for (col = 0; col < preedit_start_col
2452 && cmdpos < ccline.cmdlen; ++col)
2453 {
2454 cmdspos += (*mb_ptr2cells)(ccline.cmdbuff + cmdpos);
2455 cmdpos += (*mb_ptr2len)(ccline.cmdbuff + cmdpos);
2456 }
2457 }
2458 else
2459 # endif
2460 {
2461 cmdspos += preedit_start_col;
2462 cmdpos += preedit_start_col;
2463 }
2464
2465 msg_row = cmdline_row + (cmdspos / (int)Columns);
2466 msg_col = cmdspos % (int)Columns;
2467 if (msg_row >= Rows)
2468 msg_row = Rows - 1;
2469
2470 for (col = 0; cmdpos < ccline.cmdlen; ++col)
2471 {
2472 int char_len;
2473 int char_attr;
2474
2475 char_attr = im_get_feedback_attr(col);
2476 if (char_attr < 0)
2477 break; /* end of preedit string */
2478
2479 # ifdef FEAT_MBYTE
2480 if (has_mbyte)
2481 char_len = (*mb_ptr2len)(ccline.cmdbuff + cmdpos);
2482 else
2483 # endif
2484 char_len = 1;
2485
2486 msg_outtrans_len_attr(ccline.cmdbuff + cmdpos, char_len, char_attr);
2487 cmdpos += char_len;
2488 }
2489
2490 msg_row = old_row;
2491 msg_col = old_col;
2492 }
2493 }
2494 #endif /* FEAT_XIM && (FEAT_GUI_GTK || FEAT_GUI_MACVIM) */
2495
2496 /*
2497 * Allocate a new command line buffer.
2498 * Assigns the new buffer to ccline.cmdbuff and ccline.cmdbufflen.
2499 * Returns the new value of ccline.cmdbuff and ccline.cmdbufflen.
2500 */
2501 static void
2502 alloc_cmdbuff(len)
2503 int len;
2504 {
2505 /*
2506 * give some extra space to avoid having to allocate all the time
2507 */
2508 if (len < 80)
2509 len = 100;
2510 else
2511 len += 20;
2512
2513 ccline.cmdbuff = alloc(len); /* caller should check for out-of-memory */
2514 ccline.cmdbufflen = len;
2515 }
2516
2517 /*
2518 * Re-allocate the command line to length len + something extra.
2519 * return FAIL for failure, OK otherwise
2520 */
2521 static int
2522 realloc_cmdbuff(len)
2523 int len;
2524 {
2525 char_u *p;
2526
2527 p = ccline.cmdbuff;
2528 alloc_cmdbuff(len); /* will get some more */
2529 if (ccline.cmdbuff == NULL) /* out of memory */
2530 {
2531 ccline.cmdbuff = p; /* keep the old one */
2532 return FAIL;
2533 }
2534 mch_memmove(ccline.cmdbuff, p, (size_t)ccline.cmdlen + 1);
2535 vim_free(p);
2536
2537 if (ccline.xpc != NULL
2538 && ccline.xpc->xp_pattern != NULL
2539 && ccline.xpc->xp_context != EXPAND_NOTHING
2540 && ccline.xpc->xp_context != EXPAND_UNSUCCESSFUL)
2541 {
2542 int i = (int)(ccline.xpc->xp_pattern - p);
2543
2544 /* If xp_pattern points inside the old cmdbuff it needs to be adjusted
2545 * to point into the newly allocated memory. */
2546 if (i >= 0 && i <= ccline.cmdlen)
2547 ccline.xpc->xp_pattern = ccline.cmdbuff + i;
2548 }
2549
2550 return OK;
2551 }
2552
2553 #if defined(FEAT_ARABIC) || defined(PROTO)
2554 static char_u *arshape_buf = NULL;
2555
2556 # if defined(EXITFREE) || defined(PROTO)
2557 void
2558 free_cmdline_buf()
2559 {
2560 vim_free(arshape_buf);
2561 }
2562 # endif
2563 #endif
2564
2565 /*
2566 * Draw part of the cmdline at the current cursor position. But draw stars
2567 * when cmdline_star is TRUE.
2568 */
2569 static void
2570 draw_cmdline(start, len)
2571 int start;
2572 int len;
2573 {
2574 #if defined(FEAT_CRYPT) || defined(FEAT_EVAL)
2575 int i;
2576
2577 if (cmdline_star > 0)
2578 for (i = 0; i < len; ++i)
2579 {
2580 msg_putchar('*');
2581 # ifdef FEAT_MBYTE
2582 if (has_mbyte)
2583 i += (*mb_ptr2len)(ccline.cmdbuff + start + i) - 1;
2584 # endif
2585 }
2586 else
2587 #endif
2588 #ifdef FEAT_ARABIC
2589 if (p_arshape && !p_tbidi && enc_utf8 && len > 0)
2590 {
2591 static int buflen = 0;
2592 char_u *p;
2593 int j;
2594 int newlen = 0;
2595 int mb_l;
2596 int pc, pc1 = 0;
2597 int prev_c = 0;
2598 int prev_c1 = 0;
2599 int u8c;
2600 int u8cc[MAX_MCO];
2601 int nc = 0;
2602
2603 /*
2604 * Do arabic shaping into a temporary buffer. This is very
2605 * inefficient!
2606 */
2607 if (len * 2 + 2 > buflen)
2608 {
2609 /* Re-allocate the buffer. We keep it around to avoid a lot of
2610 * alloc()/free() calls. */
2611 vim_free(arshape_buf);
2612 buflen = len * 2 + 2;
2613 arshape_buf = alloc(buflen);
2614 if (arshape_buf == NULL)
2615 return; /* out of memory */
2616 }
2617
2618 if (utf_iscomposing(utf_ptr2char(ccline.cmdbuff + start)))
2619 {
2620 /* Prepend a space to draw the leading composing char on. */
2621 arshape_buf[0] = ' ';
2622 newlen = 1;
2623 }
2624
2625 for (j = start; j < start + len; j += mb_l)
2626 {
2627 p = ccline.cmdbuff + j;
2628 u8c = utfc_ptr2char_len(p, u8cc, start + len - j);
2629 mb_l = utfc_ptr2len_len(p, start + len - j);
2630 if (ARABIC_CHAR(u8c))
2631 {
2632 /* Do Arabic shaping. */
2633 if (cmdmsg_rl)
2634 {
2635 /* displaying from right to left */
2636 pc = prev_c;
2637 pc1 = prev_c1;
2638 prev_c1 = u8cc[0];
2639 if (j + mb_l >= start + len)
2640 nc = NUL;
2641 else
2642 nc = utf_ptr2char(p + mb_l);
2643 }
2644 else
2645 {
2646 /* displaying from left to right */
2647 if (j + mb_l >= start + len)
2648 pc = NUL;
2649 else
2650 {
2651 int pcc[MAX_MCO];
2652
2653 pc = utfc_ptr2char_len(p + mb_l, pcc,
2654 start + len - j - mb_l);
2655 pc1 = pcc[0];
2656 }
2657 nc = prev_c;
2658 }
2659 prev_c = u8c;
2660
2661 u8c = arabic_shape(u8c, NULL, &u8cc[0], pc, pc1, nc);
2662
2663 newlen += (*mb_char2bytes)(u8c, arshape_buf + newlen);
2664 if (u8cc[0] != 0)
2665 {
2666 newlen += (*mb_char2bytes)(u8cc[0], arshape_buf + newlen);
2667 if (u8cc[1] != 0)
2668 newlen += (*mb_char2bytes)(u8cc[1],
2669 arshape_buf + newlen);
2670 }
2671 }
2672 else
2673 {
2674 prev_c = u8c;
2675 mch_memmove(arshape_buf + newlen, p, mb_l);
2676 newlen += mb_l;
2677 }
2678 }
2679
2680 msg_outtrans_len(arshape_buf, newlen);
2681 }
2682 else
2683 #endif
2684 msg_outtrans_len(ccline.cmdbuff + start, len);
2685 }
2686
2687 /*
2688 * Put a character on the command line. Shifts the following text to the
2689 * right when "shift" is TRUE. Used for CTRL-V, CTRL-K, etc.
2690 * "c" must be printable (fit in one display cell)!
2691 */
2692 void
2693 putcmdline(c, shift)
2694 int c;
2695 int shift;
2696 {
2697 if (cmd_silent)
2698 return;
2699 msg_no_more = TRUE;
2700 msg_putchar(c);
2701 if (shift)
2702 draw_cmdline(ccline.cmdpos, ccline.cmdlen - ccline.cmdpos);
2703 msg_no_more = FALSE;
2704 cursorcmd();
2705 }
2706
2707 /*
2708 * Undo a putcmdline(c, FALSE).
2709 */
2710 void
2711 unputcmdline()
2712 {
2713 if (cmd_silent)
2714 return;
2715 msg_no_more = TRUE;
2716 if (ccline.cmdlen == ccline.cmdpos)
2717 msg_putchar(' ');
2718 else
2719 draw_cmdline(ccline.cmdpos, 1);
2720 msg_no_more = FALSE;
2721 cursorcmd();
2722 }
2723
2724 /*
2725 * Put the given string, of the given length, onto the command line.
2726 * If len is -1, then STRLEN() is used to calculate the length.
2727 * If 'redraw' is TRUE then the new part of the command line, and the remaining
2728 * part will be redrawn, otherwise it will not. If this function is called
2729 * twice in a row, then 'redraw' should be FALSE and redrawcmd() should be
2730 * called afterwards.
2731 */
2732 int
2733 put_on_cmdline(str, len, redraw)
2734 char_u *str;
2735 int len;
2736 int redraw;
2737 {
2738 int retval;
2739 int i;
2740 int m;
2741 int c;
2742
2743 if (len < 0)
2744 len = (int)STRLEN(str);
2745
2746 /* Check if ccline.cmdbuff needs to be longer */
2747 if (ccline.cmdlen + len + 1 >= ccline.cmdbufflen)
2748 retval = realloc_cmdbuff(ccline.cmdlen + len);
2749 else
2750 retval = OK;
2751 if (retval == OK)
2752 {
2753 if (!ccline.overstrike)
2754 {
2755 mch_memmove(ccline.cmdbuff + ccline.cmdpos + len,
2756 ccline.cmdbuff + ccline.cmdpos,
2757 (size_t)(ccline.cmdlen - ccline.cmdpos));
2758 ccline.cmdlen += len;
2759 }
2760 else
2761 {
2762 #ifdef FEAT_MBYTE
2763 if (has_mbyte)
2764 {
2765 /* Count nr of characters in the new string. */
2766 m = 0;
2767 for (i = 0; i < len; i += (*mb_ptr2len)(str + i))
2768 ++m;
2769 /* Count nr of bytes in cmdline that are overwritten by these
2770 * characters. */
2771 for (i = ccline.cmdpos; i < ccline.cmdlen && m > 0;
2772 i += (*mb_ptr2len)(ccline.cmdbuff + i))
2773 --m;
2774 if (i < ccline.cmdlen)
2775 {
2776 mch_memmove(ccline.cmdbuff + ccline.cmdpos + len,
2777 ccline.cmdbuff + i, (size_t)(ccline.cmdlen - i));
2778 ccline.cmdlen += ccline.cmdpos + len - i;
2779 }
2780 else
2781 ccline.cmdlen = ccline.cmdpos + len;
2782 }
2783 else
2784 #endif
2785 if (ccline.cmdpos + len > ccline.cmdlen)
2786 ccline.cmdlen = ccline.cmdpos + len;
2787 }
2788 mch_memmove(ccline.cmdbuff + ccline.cmdpos, str, (size_t)len);
2789 ccline.cmdbuff[ccline.cmdlen] = NUL;
2790
2791 #ifdef FEAT_MBYTE
2792 if (enc_utf8)
2793 {
2794 /* When the inserted text starts with a composing character,
2795 * backup to the character before it. There could be two of them.
2796 */
2797 i = 0;
2798 c = utf_ptr2char(ccline.cmdbuff + ccline.cmdpos);
2799 while (ccline.cmdpos > 0 && utf_iscomposing(c))
2800 {
2801 i = (*mb_head_off)(ccline.cmdbuff,
2802 ccline.cmdbuff + ccline.cmdpos - 1) + 1;
2803 ccline.cmdpos -= i;
2804 len += i;
2805 c = utf_ptr2char(ccline.cmdbuff + ccline.cmdpos);
2806 }
2807 # ifdef FEAT_ARABIC
2808 if (i == 0 && ccline.cmdpos > 0 && arabic_maycombine(c))
2809 {
2810 /* Check the previous character for Arabic combining pair. */
2811 i = (*mb_head_off)(ccline.cmdbuff,
2812 ccline.cmdbuff + ccline.cmdpos - 1) + 1;
2813 if (arabic_combine(utf_ptr2char(ccline.cmdbuff
2814 + ccline.cmdpos - i), c))
2815 {
2816 ccline.cmdpos -= i;
2817 len += i;
2818 }
2819 else
2820 i = 0;
2821 }
2822 # endif
2823 if (i != 0)
2824 {
2825 /* Also backup the cursor position. */
2826 i = ptr2cells(ccline.cmdbuff + ccline.cmdpos);
2827 ccline.cmdspos -= i;
2828 msg_col -= i;
2829 if (msg_col < 0)
2830 {
2831 msg_col += Columns;
2832 --msg_row;
2833 }
2834 }
2835 }
2836 #endif
2837
2838 if (redraw && !cmd_silent)
2839 {
2840 msg_no_more = TRUE;
2841 i = cmdline_row;
2842 draw_cmdline(ccline.cmdpos, ccline.cmdlen - ccline.cmdpos);
2843 /* Avoid clearing the rest of the line too often. */
2844 if (cmdline_row != i || ccline.overstrike)
2845 msg_clr_eos();
2846 msg_no_more = FALSE;
2847 }
2848 #ifdef FEAT_FKMAP
2849 /*
2850 * If we are in Farsi command mode, the character input must be in
2851 * Insert mode. So do not advance the cmdpos.
2852 */
2853 if (!cmd_fkmap)
2854 #endif
2855 {
2856 if (KeyTyped)
2857 {
2858 m = Columns * Rows;
2859 if (m < 0) /* overflow, Columns or Rows at weird value */
2860 m = MAXCOL;
2861 }
2862 else
2863 m = MAXCOL;
2864 for (i = 0; i < len; ++i)
2865 {
2866 c = cmdline_charsize(ccline.cmdpos);
2867 #ifdef FEAT_MBYTE
2868 /* count ">" for a double-wide char that doesn't fit. */
2869 if (has_mbyte)
2870 correct_cmdspos(ccline.cmdpos, c);
2871 #endif
2872 /* Stop cursor at the end of the screen, but do increment the
2873 * insert position, so that entering a very long command
2874 * works, even though you can't see it. */
2875 if (ccline.cmdspos + c < m)
2876 ccline.cmdspos += c;
2877 #ifdef FEAT_MBYTE
2878 if (has_mbyte)
2879 {
2880 c = (*mb_ptr2len)(ccline.cmdbuff + ccline.cmdpos) - 1;
2881 if (c > len - i - 1)
2882 c = len - i - 1;
2883 ccline.cmdpos += c;
2884 i += c;
2885 }
2886 #endif
2887 ++ccline.cmdpos;
2888 }
2889 }
2890 }
2891 if (redraw)
2892 msg_check();
2893 return retval;
2894 }
2895
2896 static struct cmdline_info prev_ccline;
2897 static int prev_ccline_used = FALSE;
2898
2899 /*
2900 * Save ccline, because obtaining the "=" register may execute "normal :cmd"
2901 * and overwrite it. But get_cmdline_str() may need it, thus make it
2902 * available globally in prev_ccline.
2903 */
2904 static void
2905 save_cmdline(ccp)
2906 struct cmdline_info *ccp;
2907 {
2908 if (!prev_ccline_used)
2909 {
2910 vim_memset(&prev_ccline, 0, sizeof(struct cmdline_info));
2911 prev_ccline_used = TRUE;
2912 }
2913 *ccp = prev_ccline;
2914 prev_ccline = ccline;
2915 ccline.cmdbuff = NULL;
2916 ccline.cmdprompt = NULL;
2917 ccline.xpc = NULL;
2918 }
2919
2920 /*
2921 * Restore ccline after it has been saved with save_cmdline().
2922 */
2923 static void
2924 restore_cmdline(ccp)
2925 struct cmdline_info *ccp;
2926 {
2927 ccline = prev_ccline;
2928 prev_ccline = *ccp;
2929 }
2930
2931 #if defined(FEAT_EVAL) || defined(PROTO)
2932 /*
2933 * Save the command line into allocated memory. Returns a pointer to be
2934 * passed to restore_cmdline_alloc() later.
2935 * Returns NULL when failed.
2936 */
2937 char_u *
2938 save_cmdline_alloc()
2939 {
2940 struct cmdline_info *p;
2941
2942 p = (struct cmdline_info *)alloc((unsigned)sizeof(struct cmdline_info));
2943 if (p != NULL)
2944 save_cmdline(p);
2945 return (char_u *)p;
2946 }
2947
2948 /*
2949 * Restore the command line from the return value of save_cmdline_alloc().
2950 */
2951 void
2952 restore_cmdline_alloc(p)
2953 char_u *p;
2954 {
2955 if (p != NULL)
2956 {
2957 restore_cmdline((struct cmdline_info *)p);
2958 vim_free(p);
2959 }
2960 }
2961 #endif
2962
2963 /*
2964 * paste a yank register into the command line.
2965 * used by CTRL-R command in command-line mode
2966 * insert_reg() can't be used here, because special characters from the
2967 * register contents will be interpreted as commands.
2968 *
2969 * return FAIL for failure, OK otherwise
2970 */
2971 static int
2972 cmdline_paste(regname, literally, remcr)
2973 int regname;
2974 int literally; /* Insert text literally instead of "as typed" */
2975 int remcr; /* remove trailing CR */
2976 {
2977 long i;
2978 char_u *arg;
2979 char_u *p;
2980 int allocated;
2981 struct cmdline_info save_ccline;
2982
2983 /* check for valid regname; also accept special characters for CTRL-R in
2984 * the command line */
2985 if (regname != Ctrl_F && regname != Ctrl_P && regname != Ctrl_W
2986 && regname != Ctrl_A && !valid_yank_reg(regname, FALSE))
2987 return FAIL;
2988
2989 /* A register containing CTRL-R can cause an endless loop. Allow using
2990 * CTRL-C to break the loop. */
2991 line_breakcheck();
2992 if (got_int)
2993 return FAIL;
2994
2995 #ifdef FEAT_CLIPBOARD
2996 regname = may_get_selection(regname);
2997 #endif
2998
2999 /* Need to save and restore ccline. And set "textlock" to avoid nasty
3000 * things like going to another buffer when evaluating an expression. */
3001 save_cmdline(&save_ccline);
3002 ++textlock;
3003 i = get_spec_reg(regname, &arg, &allocated, TRUE);
3004 --textlock;
3005 restore_cmdline(&save_ccline);
3006
3007 if (i)
3008 {
3009 /* Got the value of a special register in "arg". */
3010 if (arg == NULL)
3011 return FAIL;
3012
3013 /* When 'incsearch' is set and CTRL-R CTRL-W used: skip the duplicate
3014 * part of the word. */
3015 p = arg;
3016 if (p_is && regname == Ctrl_W)
3017 {
3018 char_u *w;
3019 int len;
3020
3021 /* Locate start of last word in the cmd buffer. */
3022 for (w = ccline.cmdbuff + ccline.cmdlen; w > ccline.cmdbuff; )
3023 {
3024 #ifdef FEAT_MBYTE
3025 if (has_mbyte)
3026 {
3027 len = (*mb_head_off)(ccline.cmdbuff, w - 1) + 1;
3028 if (!vim_iswordc(mb_ptr2char(w - len)))
3029 break;
3030 w -= len;
3031 }
3032 else
3033 #endif
3034 {
3035 if (!vim_iswordc(w[-1]))
3036 break;
3037 --w;
3038 }
3039 }
3040 len = (int)((ccline.cmdbuff + ccline.cmdlen) - w);
3041 if (p_ic ? STRNICMP(w, arg, len) == 0 : STRNCMP(w, arg, len) == 0)
3042 p += len;
3043 }
3044
3045 cmdline_paste_str(p, literally);
3046 if (allocated)
3047 vim_free(arg);
3048 return OK;
3049 }
3050
3051 return cmdline_paste_reg(regname, literally, remcr);
3052 }
3053
3054 /*
3055 * Put a string on the command line.
3056 * When "literally" is TRUE, insert literally.
3057 * When "literally" is FALSE, insert as typed, but don't leave the command
3058 * line.
3059 */
3060 void
3061 cmdline_paste_str(s, literally)
3062 char_u *s;
3063 int literally;
3064 {
3065 int c, cv;
3066
3067 if (literally)
3068 put_on_cmdline(s, -1, TRUE);
3069 else
3070 while (*s != NUL)
3071 {
3072 cv = *s;
3073 if (cv == Ctrl_V && s[1])
3074 ++s;
3075 #ifdef FEAT_MBYTE
3076 if (has_mbyte)
3077 c = mb_cptr2char_adv(&s);
3078 else
3079 #endif
3080 c = *s++;
3081 if (cv == Ctrl_V || c == ESC || c == Ctrl_C || c == CAR || c == NL
3082 #ifdef UNIX
3083 || c == intr_char
3084 #endif
3085 || (c == Ctrl_BSL && *s == Ctrl_N))
3086 stuffcharReadbuff(Ctrl_V);
3087 stuffcharReadbuff(c);
3088 }
3089 }
3090
3091 #ifdef FEAT_WILDMENU
3092 /*
3093 * Delete characters on the command line, from "from" to the current
3094 * position.
3095 */
3096 static void
3097 cmdline_del(from)
3098 int from;
3099 {
3100 mch_memmove(ccline.cmdbuff + from, ccline.cmdbuff + ccline.cmdpos,
3101 (size_t)(ccline.cmdlen - ccline.cmdpos + 1));
3102 ccline.cmdlen -= ccline.cmdpos - from;
3103 ccline.cmdpos = from;
3104 }
3105 #endif
3106
3107 /*
3108 * this function is called when the screen size changes and with incremental
3109 * search
3110 */
3111 void
3112 redrawcmdline()
3113 {
3114 if (cmd_silent)
3115 return;
3116 need_wait_return = FALSE;
3117 compute_cmdrow();
3118 redrawcmd();
3119 cursorcmd();
3120 }
3121
3122 static void
3123 redrawcmdprompt()
3124 {
3125 int i;
3126
3127 if (cmd_silent)
3128 return;
3129 if (ccline.cmdfirstc != NUL)
3130 msg_putchar(ccline.cmdfirstc);
3131 if (ccline.cmdprompt != NULL)
3132 {
3133 msg_puts_attr(ccline.cmdprompt, ccline.cmdattr);
3134 ccline.cmdindent = msg_col + (msg_row - cmdline_row) * Columns;
3135 /* do the reverse of set_cmdspos() */
3136 if (ccline.cmdfirstc != NUL)
3137 --ccline.cmdindent;
3138 }
3139 else
3140 for (i = ccline.cmdindent; i > 0; --i)
3141 msg_putchar(' ');
3142 }
3143
3144 /*
3145 * Redraw what is currently on the command line.
3146 */
3147 void
3148 redrawcmd()
3149 {
3150 if (cmd_silent)
3151 return;
3152
3153 /* when 'incsearch' is set there may be no command line while redrawing */
3154 if (ccline.cmdbuff == NULL)
3155 {
3156 windgoto(cmdline_row, 0);
3157 msg_clr_eos();
3158 return;
3159 }
3160
3161 msg_start();
3162 redrawcmdprompt();
3163
3164 /* Don't use more prompt, truncate the cmdline if it doesn't fit. */
3165 msg_no_more = TRUE;
3166 draw_cmdline(0, ccline.cmdlen);
3167 msg_clr_eos();
3168 msg_no_more = FALSE;
3169
3170 set_cmdspos_cursor();
3171
3172 /*
3173 * An emsg() before may have set msg_scroll. This is used in normal mode,
3174 * in cmdline mode we can reset them now.
3175 */
3176 msg_scroll = FALSE; /* next message overwrites cmdline */
3177
3178 /* Typing ':' at the more prompt may set skip_redraw. We don't want this
3179 * in cmdline mode */
3180 skip_redraw = FALSE;
3181 }
3182
3183 void
3184 compute_cmdrow()
3185 {
3186 if (exmode_active || msg_scrolled != 0)
3187 cmdline_row = Rows - 1;
3188 else
3189 cmdline_row = W_WINROW(lastwin) + lastwin->w_height
3190 + W_STATUS_HEIGHT(lastwin);
3191 }
3192
3193 static void
3194 cursorcmd()
3195 {
3196 if (cmd_silent)
3197 return;
3198
3199 #ifdef FEAT_RIGHTLEFT
3200 if (cmdmsg_rl)
3201 {
3202 msg_row = cmdline_row + (ccline.cmdspos / (int)(Columns - 1));
3203 msg_col = (int)Columns - (ccline.cmdspos % (int)(Columns - 1)) - 1;
3204 if (msg_row <= 0)
3205 msg_row = Rows - 1;
3206 }
3207 else
3208 #endif
3209 {
3210 msg_row = cmdline_row + (ccline.cmdspos / (int)Columns);
3211 msg_col = ccline.cmdspos % (int)Columns;
3212 if (msg_row >= Rows)
3213 msg_row = Rows - 1;
3214 }
3215
3216 windgoto(msg_row, msg_col);
3217 #if defined(FEAT_XIM) && (defined(FEAT_GUI_GTK) || defined(FEAT_GUI_MACVIM))
3218 redrawcmd_preedit();
3219 #endif
3220 #ifdef MCH_CURSOR_SHAPE
3221 mch_update_cursor();
3222 #endif
3223 }
3224
3225 void
3226 gotocmdline(clr)
3227 int clr;
3228 {
3229 msg_start();
3230 #ifdef FEAT_RIGHTLEFT
3231 if (cmdmsg_rl)
3232 msg_col = Columns - 1;
3233 else
3234 #endif
3235 msg_col = 0; /* always start in column 0 */
3236 if (clr) /* clear the bottom line(s) */
3237 msg_clr_eos(); /* will reset clear_cmdline */
3238 windgoto(cmdline_row, 0);
3239 }
3240
3241 /*
3242 * Check the word in front of the cursor for an abbreviation.
3243 * Called when the non-id character "c" has been entered.
3244 * When an abbreviation is recognized it is removed from the text with
3245 * backspaces and the replacement string is inserted, followed by "c".
3246 */
3247 static int
3248 ccheck_abbr(c)
3249 int c;
3250 {
3251 if (p_paste || no_abbr) /* no abbreviations or in paste mode */
3252 return FALSE;
3253
3254 return check_abbr(c, ccline.cmdbuff, ccline.cmdpos, 0);
3255 }
3256
3257 /*
3258 * Return FAIL if this is not an appropriate context in which to do
3259 * completion of anything, return OK if it is (even if there are no matches).
3260 * For the caller, this means that the character is just passed through like a
3261 * normal character (instead of being expanded). This allows :s/^I^D etc.
3262 */
3263 static int
3264 nextwild(xp, type, options)
3265 expand_T *xp;
3266 int type;
3267 int options; /* extra options for ExpandOne() */
3268 {
3269 int i, j;
3270 char_u *p1;
3271 char_u *p2;
3272 int oldlen;
3273 int difflen;
3274 int v;
3275
3276 if (xp->xp_numfiles == -1)
3277 {
3278 set_expand_context(xp);
3279 cmd_showtail = expand_showtail(xp);
3280 }
3281
3282 if (xp->xp_context == EXPAND_UNSUCCESSFUL)
3283 {
3284 beep_flush();
3285 return OK; /* Something illegal on command line */
3286 }
3287 if (xp->xp_context == EXPAND_NOTHING)
3288 {
3289 /* Caller can use the character as a normal char instead */
3290 return FAIL;
3291 }
3292
3293 MSG_PUTS("..."); /* show that we are busy */
3294 out_flush();
3295
3296 i = (int)(xp->xp_pattern - ccline.cmdbuff);
3297 oldlen = ccline.cmdpos - i;
3298
3299 if (type == WILD_NEXT || type == WILD_PREV)
3300 {
3301 /*
3302 * Get next/previous match for a previous expanded pattern.
3303 */
3304 p2 = ExpandOne(xp, NULL, NULL, 0, type);
3305 }
3306 else
3307 {
3308 /*
3309 * Translate string into pattern and expand it.
3310 */
3311 if ((p1 = addstar(&ccline.cmdbuff[i], oldlen, xp->xp_context)) == NULL)
3312 p2 = NULL;
3313 else
3314 {
3315 p2 = ExpandOne(xp, p1, vim_strnsave(&ccline.cmdbuff[i], oldlen),
3316 WILD_HOME_REPLACE|WILD_ADD_SLASH|WILD_SILENT|WILD_ESCAPE
3317 |options, type);
3318 vim_free(p1);
3319 /* longest match: make sure it is not shorter (happens with :help */
3320 if (p2 != NULL && type == WILD_LONGEST)
3321 {
3322 for (j = 0; j < oldlen; ++j)
3323 if (ccline.cmdbuff[i + j] == '*'
3324 || ccline.cmdbuff[i + j] == '?')
3325 break;
3326 if ((int)STRLEN(p2) < j)
3327 {
3328 vim_free(p2);
3329 p2 = NULL;
3330 }
3331 }
3332 }
3333 }
3334
3335 if (p2 != NULL && !got_int)
3336 {
3337 difflen = (int)STRLEN(p2) - oldlen;
3338 if (ccline.cmdlen + difflen > ccline.cmdbufflen - 4)
3339 {
3340 v = realloc_cmdbuff(ccline.cmdlen + difflen);
3341 xp->xp_pattern = ccline.cmdbuff + i;
3342 }
3343 else
3344 v = OK;
3345 if (v == OK)
3346 {
3347 mch_memmove(&ccline.cmdbuff[ccline.cmdpos + difflen],
3348 &ccline.cmdbuff[ccline.cmdpos],
3349 (size_t)(ccline.cmdlen - ccline.cmdpos + 1));
3350 mch_memmove(&ccline.cmdbuff[i], p2, STRLEN(p2));
3351 ccline.cmdlen += difflen;
3352 ccline.cmdpos += difflen;
3353 }
3354 }
3355 vim_free(p2);
3356
3357 redrawcmd();
3358 cursorcmd();
3359
3360 /* When expanding a ":map" command and no matches are found, assume that
3361 * the key is supposed to be inserted literally */
3362 if (xp->xp_context == EXPAND_MAPPINGS && p2 == NULL)
3363 return FAIL;
3364
3365 if (xp->xp_numfiles <= 0 && p2 == NULL)
3366 beep_flush();
3367 else if (xp->xp_numfiles == 1)
3368 /* free expanded pattern */
3369 (void)ExpandOne(xp, NULL, NULL, 0, WILD_FREE);
3370
3371 return OK;
3372 }
3373
3374 /*
3375 * Do wildcard expansion on the string 'str'.
3376 * Chars that should not be expanded must be preceded with a backslash.
3377 * Return a pointer to allocated memory containing the new string.
3378 * Return NULL for failure.
3379 *
3380 * "orig" is the originally expanded string, copied to allocated memory. It
3381 * should either be kept in orig_save or freed. When "mode" is WILD_NEXT or
3382 * WILD_PREV "orig" should be NULL.
3383 *
3384 * Results are cached in xp->xp_files and xp->xp_numfiles, except when "mode"
3385 * is WILD_EXPAND_FREE or WILD_ALL.
3386 *
3387 * mode = WILD_FREE: just free previously expanded matches
3388 * mode = WILD_EXPAND_FREE: normal expansion, do not keep matches
3389 * mode = WILD_EXPAND_KEEP: normal expansion, keep matches
3390 * mode = WILD_NEXT: use next match in multiple match, wrap to first
3391 * mode = WILD_PREV: use previous match in multiple match, wrap to first
3392 * mode = WILD_ALL: return all matches concatenated
3393 * mode = WILD_LONGEST: return longest matched part
3394 *
3395 * options = WILD_LIST_NOTFOUND: list entries without a match
3396 * options = WILD_HOME_REPLACE: do home_replace() for buffer names
3397 * options = WILD_USE_NL: Use '\n' for WILD_ALL
3398 * options = WILD_NO_BEEP: Don't beep for multiple matches
3399 * options = WILD_ADD_SLASH: add a slash after directory names
3400 * options = WILD_KEEP_ALL: don't remove 'wildignore' entries
3401 * options = WILD_SILENT: don't print warning messages
3402 * options = WILD_ESCAPE: put backslash before special chars
3403 *
3404 * The variables xp->xp_context and xp->xp_backslash must have been set!
3405 */
3406 char_u *
3407 ExpandOne(xp, str, orig, options, mode)
3408 expand_T *xp;
3409 char_u *str;
3410 char_u *orig; /* allocated copy of original of expanded string */
3411 int options;
3412 int mode;
3413 {
3414 char_u *ss = NULL;
3415 static int findex;
3416 static char_u *orig_save = NULL; /* kept value of orig */
3417 int orig_saved = FALSE;
3418 int i;
3419 long_u len;
3420 int non_suf_match; /* number without matching suffix */
3421
3422 /*
3423 * first handle the case of using an old match
3424 */
3425 if (mode == WILD_NEXT || mode == WILD_PREV)
3426 {
3427 if (xp->xp_numfiles > 0)
3428 {
3429 if (mode == WILD_PREV)
3430 {
3431 if (findex == -1)
3432 findex = xp->xp_numfiles;
3433 --findex;
3434 }
3435 else /* mode == WILD_NEXT */
3436 ++findex;
3437
3438 /*
3439 * When wrapping around, return the original string, set findex to
3440 * -1.
3441 */
3442 if (findex < 0)
3443 {
3444 if (orig_save == NULL)
3445 findex = xp->xp_numfiles - 1;
3446 else
3447 findex = -1;
3448 }
3449 if (findex >= xp->xp_numfiles)
3450 {
3451 if (orig_save == NULL)
3452 findex = 0;
3453 else
3454 findex = -1;
3455 }
3456 #ifdef FEAT_WILDMENU
3457 if (p_wmnu)
3458 win_redr_status_matches(xp, xp->xp_numfiles, xp->xp_files,
3459 findex, cmd_showtail);
3460 #endif
3461 if (findex == -1)
3462 return vim_strsave(orig_save);
3463 return vim_strsave(xp->xp_files[findex]);
3464 }
3465 else
3466 return NULL;
3467 }
3468
3469 /* free old names */
3470 if (xp->xp_numfiles != -1 && mode != WILD_ALL && mode != WILD_LONGEST)
3471 {
3472 FreeWild(xp->xp_numfiles, xp->xp_files);
3473 xp->xp_numfiles = -1;
3474 vim_free(orig_save);
3475 orig_save = NULL;
3476 }
3477 findex = 0;
3478
3479 if (mode == WILD_FREE) /* only release file name */
3480 return NULL;
3481
3482 if (xp->xp_numfiles == -1)
3483 {
3484 vim_free(orig_save);
3485 orig_save = orig;
3486 orig_saved = TRUE;
3487
3488 /*
3489 * Do the expansion.
3490 */
3491 if (ExpandFromContext(xp, str, &xp->xp_numfiles, &xp->xp_files,
3492 options) == FAIL)
3493 {
3494 #ifdef FNAME_ILLEGAL
3495 /* Illegal file name has been silently skipped. But when there
3496 * are wildcards, the real problem is that there was no match,
3497 * causing the pattern to be added, which has illegal characters.
3498 */
3499 if (!(options & WILD_SILENT) && (options & WILD_LIST_NOTFOUND))
3500 EMSG2(_(e_nomatch2), str);
3501 #endif
3502 }
3503 else if (xp->xp_numfiles == 0)
3504 {
3505 if (!(options & WILD_SILENT))
3506 EMSG2(_(e_nomatch2), str);
3507 }
3508 else
3509 {
3510 /* Escape the matches for use on the command line. */
3511 ExpandEscape(xp, str, xp->xp_numfiles, xp->xp_files, options);
3512
3513 /*
3514 * Check for matching suffixes in file names.
3515 */
3516 if (mode != WILD_ALL && mode != WILD_LONGEST)
3517 {
3518 if (xp->xp_numfiles)
3519 non_suf_match = xp->xp_numfiles;
3520 else
3521 non_suf_match = 1;
3522 if ((xp->xp_context == EXPAND_FILES
3523 || xp->xp_context == EXPAND_DIRECTORIES)
3524 && xp->xp_numfiles > 1)
3525 {
3526 /*
3527 * More than one match; check suffix.
3528 * The files will have been sorted on matching suffix in
3529 * expand_wildcards, only need to check the first two.
3530 */
3531 non_suf_match = 0;
3532 for (i = 0; i < 2; ++i)
3533 if (match_suffix(xp->xp_files[i]))
3534 ++non_suf_match;
3535 }
3536 if (non_suf_match != 1)
3537 {
3538 /* Can we ever get here unless it's while expanding
3539 * interactively? If not, we can get rid of this all
3540 * together. Don't really want to wait for this message
3541 * (and possibly have to hit return to continue!).
3542 */
3543 if (!(options & WILD_SILENT))
3544 EMSG(_(e_toomany));
3545 else if (!(options & WILD_NO_BEEP))
3546 beep_flush();
3547 }
3548 if (!(non_suf_match != 1 && mode == WILD_EXPAND_FREE))
3549 ss = vim_strsave(xp->xp_files[0]);
3550 }
3551 }
3552 }
3553
3554 /* Find longest common part */
3555 if (mode == WILD_LONGEST && xp->xp_numfiles > 0)
3556 {
3557 for (len = 0; xp->xp_files[0][len]; ++len)
3558 {
3559 for (i = 0; i < xp->xp_numfiles; ++i)
3560 {
3561 #ifdef CASE_INSENSITIVE_FILENAME
3562 if (xp->xp_context == EXPAND_DIRECTORIES
3563 || xp->xp_context == EXPAND_FILES
3564 || xp->xp_context == EXPAND_SHELLCMD
3565 || xp->xp_context == EXPAND_BUFFERS)
3566 {
3567 if (TOLOWER_LOC(xp->xp_files[i][len]) !=
3568 TOLOWER_LOC(xp->xp_files[0][len]))
3569 break;
3570 }
3571 else
3572 #endif
3573 if (xp->xp_files[i][len] != xp->xp_files[0][len])
3574 break;
3575 }
3576 if (i < xp->xp_numfiles)
3577 {
3578 if (!(options & WILD_NO_BEEP))
3579 vim_beep();
3580 break;
3581 }
3582 }
3583 ss = alloc((unsigned)len + 1);
3584 if (ss)
3585 vim_strncpy(ss, xp->xp_files[0], (size_t)len);
3586 findex = -1; /* next p_wc gets first one */
3587 }
3588
3589 /* Concatenate all matching names */
3590 if (mode == WILD_ALL && xp->xp_numfiles > 0)
3591 {
3592 len = 0;
3593 for (i = 0; i < xp->xp_numfiles; ++i)
3594 len += (long_u)STRLEN(xp->xp_files[i]) + 1;
3595 ss = lalloc(len, TRUE);
3596 if (ss != NULL)
3597 {
3598 *ss = NUL;
3599 for (i = 0; i < xp->xp_numfiles; ++i)
3600 {
3601 STRCAT(ss, xp->xp_files[i]);
3602 if (i != xp->xp_numfiles - 1)
3603 STRCAT(ss, (options & WILD_USE_NL) ? "\n" : " ");
3604 }
3605 }
3606 }
3607
3608 if (mode == WILD_EXPAND_FREE || mode == WILD_ALL)
3609 ExpandCleanup(xp);
3610
3611 /* Free "orig" if it wasn't stored in "orig_save". */
3612 if (!orig_saved)
3613 vim_free(orig);
3614
3615 return ss;
3616 }
3617
3618 /*
3619 * Prepare an expand structure for use.
3620 */
3621 void
3622 ExpandInit(xp)
3623 expand_T *xp;
3624 {
3625 xp->xp_pattern = NULL;
3626 xp->xp_backslash = XP_BS_NONE;
3627 #ifndef BACKSLASH_IN_FILENAME
3628 xp->xp_shell = FALSE;
3629 #endif
3630 xp->xp_numfiles = -1;
3631 xp->xp_files = NULL;
3632 #if defined(FEAT_USR_CMDS) && defined(FEAT_EVAL) && defined(FEAT_CMDL_COMPL)
3633 xp->xp_arg = NULL;
3634 #endif
3635 }
3636
3637 /*
3638 * Cleanup an expand structure after use.
3639 */
3640 void
3641 ExpandCleanup(xp)
3642 expand_T *xp;
3643 {
3644 if (xp->xp_numfiles >= 0)
3645 {
3646 FreeWild(xp->xp_numfiles, xp->xp_files);
3647 xp->xp_numfiles = -1;
3648 }
3649 }
3650
3651 void
3652 ExpandEscape(xp, str, numfiles, files, options)
3653 expand_T *xp;
3654 char_u *str;
3655 int numfiles;
3656 char_u **files;
3657 int options;
3658 {
3659 int i;
3660 char_u *p;
3661
3662 /*
3663 * May change home directory back to "~"
3664 */
3665 if (options & WILD_HOME_REPLACE)
3666 tilde_replace(str, numfiles, files);
3667
3668 if (options & WILD_ESCAPE)
3669 {
3670 if (xp->xp_context == EXPAND_FILES
3671 || xp->xp_context == EXPAND_SHELLCMD
3672 || xp->xp_context == EXPAND_BUFFERS
3673 || xp->xp_context == EXPAND_DIRECTORIES)
3674 {
3675 /*
3676 * Insert a backslash into a file name before a space, \, %, #
3677 * and wildmatch characters, except '~'.
3678 */
3679 for (i = 0; i < numfiles; ++i)
3680 {
3681 /* for ":set path=" we need to escape spaces twice */
3682 if (xp->xp_backslash == XP_BS_THREE)
3683 {
3684 p = vim_strsave_escaped(files[i], (char_u *)" ");
3685 if (p != NULL)
3686 {
3687 vim_free(files[i]);
3688 files[i] = p;
3689 #if defined(BACKSLASH_IN_FILENAME)
3690 p = vim_strsave_escaped(files[i], (char_u *)" ");
3691 if (p != NULL)
3692 {
3693 vim_free(files[i]);
3694 files[i] = p;
3695 }
3696 #endif
3697 }
3698 }
3699 #ifdef BACKSLASH_IN_FILENAME
3700 p = vim_strsave_fnameescape(files[i], FALSE);
3701 #else
3702 p = vim_strsave_fnameescape(files[i], xp->xp_shell);
3703 #endif
3704 if (p != NULL)
3705 {
3706 vim_free(files[i]);
3707 files[i] = p;
3708 }
3709
3710 /* If 'str' starts with "\~", replace "~" at start of
3711 * files[i] with "\~". */
3712 if (str[0] == '\\' && str[1] == '~' && files[i][0] == '~')
3713 escape_fname(&files[i]);
3714 }
3715 xp->xp_backslash = XP_BS_NONE;
3716
3717 /* If the first file starts with a '+' escape it. Otherwise it
3718 * could be seen as "+cmd". */
3719 if (*files[0] == '+')
3720 escape_fname(&files[0]);
3721 }
3722 else if (xp->xp_context == EXPAND_TAGS)
3723 {
3724 /*
3725 * Insert a backslash before characters in a tag name that
3726 * would terminate the ":tag" command.
3727 */
3728 for (i = 0; i < numfiles; ++i)
3729 {
3730 p = vim_strsave_escaped(files[i], (char_u *)"\\|\"");
3731 if (p != NULL)
3732 {
3733 vim_free(files[i]);
3734 files[i] = p;
3735 }
3736 }
3737 }
3738 }
3739 }
3740
3741 /*
3742 * Escape special characters in "fname" for when used as a file name argument
3743 * after a Vim command, or, when "shell" is non-zero, a shell command.
3744 * Returns the result in allocated memory.
3745 */
3746 char_u *
3747 vim_strsave_fnameescape(fname, shell)
3748 char_u *fname;
3749 int shell;
3750 {
3751 char_u *p;
3752 #ifdef BACKSLASH_IN_FILENAME
3753 char_u buf[20];
3754 int j = 0;
3755
3756 /* Don't escape '[' and '{' if they are in 'isfname'. */
3757 for (p = PATH_ESC_CHARS; *p != NUL; ++p)
3758 if ((*p != '[' && *p != '{') || !vim_isfilec(*p))
3759 buf[j++] = *p;
3760 buf[j] = NUL;
3761 p = vim_strsave_escaped(fname, buf);
3762 #else
3763 p = vim_strsave_escaped(fname, shell ? SHELL_ESC_CHARS : PATH_ESC_CHARS);
3764 if (shell && csh_like_shell() && p != NULL)
3765 {
3766 char_u *s;
3767
3768 /* For csh and similar shells need to put two backslashes before '!'.
3769 * One is taken by Vim, one by the shell. */
3770 s = vim_strsave_escaped(p, (char_u *)"!");
3771 vim_free(p);
3772 p = s;
3773 }
3774 #endif
3775
3776 /* '>' and '+' are special at the start of some commands, e.g. ":edit" and
3777 * ":write". "cd -" has a special meaning. */
3778 if (*p == '>' || *p == '+' || (*p == '-' && p[1] == NUL))
3779 escape_fname(&p);
3780
3781 return p;
3782 }
3783
3784 /*
3785 * Put a backslash before the file name in "pp", which is in allocated memory.
3786 */
3787 static void
3788 escape_fname(pp)
3789 char_u **pp;
3790 {
3791 char_u *p;
3792
3793 p = alloc((unsigned)(STRLEN(*pp) + 2));
3794 if (p != NULL)
3795 {
3796 p[0] = '\\';
3797 STRCPY(p + 1, *pp);
3798 vim_free(*pp);
3799 *pp = p;
3800 }
3801 }
3802
3803 /*
3804 * For each file name in files[num_files]:
3805 * If 'orig_pat' starts with "~/", replace the home directory with "~".
3806 */
3807 void
3808 tilde_replace(orig_pat, num_files, files)
3809 char_u *orig_pat;
3810 int num_files;
3811 char_u **files;
3812 {
3813 int i;
3814 char_u *p;
3815
3816 if (orig_pat[0] == '~' && vim_ispathsep(orig_pat[1]))
3817 {
3818 for (i = 0; i < num_files; ++i)
3819 {
3820 p = home_replace_save(NULL, files[i]);
3821 if (p != NULL)
3822 {
3823 vim_free(files[i]);
3824 files[i] = p;
3825 }
3826 }
3827 }
3828 }
3829
3830 /*
3831 * Show all matches for completion on the command line.
3832 * Returns EXPAND_NOTHING when the character that triggered expansion should
3833 * be inserted like a normal character.
3834 */
3835 static int
3836 showmatches(xp, wildmenu)
3837 expand_T *xp;
3838 int wildmenu UNUSED;
3839 {
3840 #define L_SHOWFILE(m) (showtail ? sm_gettail(files_found[m]) : files_found[m])
3841 int num_files;
3842 char_u **files_found;
3843 int i, j, k;
3844 int maxlen;
3845 int lines;
3846 int columns;
3847 char_u *p;
3848 int lastlen;
3849 int attr;
3850 int showtail;
3851
3852 if (xp->xp_numfiles == -1)
3853 {
3854 set_expand_context(xp);
3855 i = expand_cmdline(xp, ccline.cmdbuff, ccline.cmdpos,
3856 &num_files, &files_found);
3857 showtail = expand_showtail(xp);
3858 if (i != EXPAND_OK)
3859 return i;
3860
3861 }
3862 else
3863 {
3864 num_files = xp->xp_numfiles;
3865 files_found = xp->xp_files;
3866 showtail = cmd_showtail;
3867 }
3868
3869 #ifdef FEAT_WILDMENU
3870 if (!wildmenu)
3871 {
3872 #endif
3873 msg_didany = FALSE; /* lines_left will be set */
3874 msg_start(); /* prepare for paging */
3875 msg_putchar('\n');
3876 out_flush();
3877 cmdline_row = msg_row;
3878 msg_didany = FALSE; /* lines_left will be set again */
3879 msg_start(); /* prepare for paging */
3880 #ifdef FEAT_WILDMENU
3881 }
3882 #endif
3883
3884 if (got_int)
3885 got_int = FALSE; /* only int. the completion, not the cmd line */
3886 #ifdef FEAT_WILDMENU
3887 else if (wildmenu)
3888 win_redr_status_matches(xp, num_files, files_found, 0, showtail);
3889 #endif
3890 else
3891 {
3892 /* find the length of the longest file name */
3893 maxlen = 0;
3894 for (i = 0; i < num_files; ++i)
3895 {
3896 if (!showtail && (xp->xp_context == EXPAND_FILES
3897 || xp->xp_context == EXPAND_SHELLCMD
3898 || xp->xp_context == EXPAND_BUFFERS))
3899 {
3900 home_replace(NULL, files_found[i], NameBuff, MAXPATHL, TRUE);
3901 j = vim_strsize(NameBuff);
3902 }
3903 else
3904 j = vim_strsize(L_SHOWFILE(i));
3905 if (j > maxlen)
3906 maxlen = j;
3907 }
3908
3909 if (xp->xp_context == EXPAND_TAGS_LISTFILES)
3910 lines = num_files;
3911 else
3912 {
3913 /* compute the number of columns and lines for the listing */
3914 maxlen += 2; /* two spaces between file names */
3915 columns = ((int)Columns + 2) / maxlen;
3916 if (columns < 1)
3917 columns = 1;
3918 lines = (num_files + columns - 1) / columns;
3919 }
3920
3921 attr = hl_attr(HLF_D); /* find out highlighting for directories */
3922
3923 if (xp->xp_context == EXPAND_TAGS_LISTFILES)
3924 {
3925 MSG_PUTS_ATTR(_("tagname"), hl_attr(HLF_T));
3926 msg_clr_eos();
3927 msg_advance(maxlen - 3);
3928 MSG_PUTS_ATTR(_(" kind file\n"), hl_attr(HLF_T));
3929 }
3930
3931 /* list the files line by line */
3932 for (i = 0; i < lines; ++i)
3933 {
3934 lastlen = 999;
3935 for (k = i; k < num_files; k += lines)
3936 {
3937 if (xp->xp_context == EXPAND_TAGS_LISTFILES)
3938 {
3939 msg_outtrans_attr(files_found[k], hl_attr(HLF_D));
3940 p = files_found[k] + STRLEN(files_found[k]) + 1;
3941 msg_advance(maxlen + 1);
3942 msg_puts(p);
3943 msg_advance(maxlen + 3);
3944 msg_puts_long_attr(p + 2, hl_attr(HLF_D));
3945 break;
3946 }
3947 for (j = maxlen - lastlen; --j >= 0; )
3948 msg_putchar(' ');
3949 if (xp->xp_context == EXPAND_FILES
3950 || xp->xp_context == EXPAND_SHELLCMD
3951 || xp->xp_context == EXPAND_BUFFERS)
3952 {
3953 /* highlight directories */
3954 j = (mch_isdir(files_found[k]));
3955 if (showtail)
3956 p = L_SHOWFILE(k);
3957 else
3958 {
3959 home_replace(NULL, files_found[k], NameBuff, MAXPATHL,
3960 TRUE);
3961 p = NameBuff;
3962 }
3963 }
3964 else
3965 {
3966 j = FALSE;
3967 p = L_SHOWFILE(k);
3968 }
3969 lastlen = msg_outtrans_attr(p, j ? attr : 0);
3970 }
3971 if (msg_col > 0) /* when not wrapped around */
3972 {
3973 msg_clr_eos();
3974 msg_putchar('\n');
3975 }
3976 out_flush(); /* show one line at a time */
3977 if (got_int)
3978 {
3979 got_int = FALSE;
3980 break;
3981 }
3982 }
3983
3984 /*
3985 * we redraw the command below the lines that we have just listed
3986 * This is a bit tricky, but it saves a lot of screen updating.
3987 */
3988 cmdline_row = msg_row; /* will put it back later */
3989 }
3990
3991 if (xp->xp_numfiles == -1)
3992 FreeWild(num_files, files_found);
3993
3994 return EXPAND_OK;
3995 }
3996
3997 /*
3998 * Private gettail for showmatches() (and win_redr_status_matches()):
3999 * Find tail of file name path, but ignore trailing "/".
4000 */
4001 char_u *
4002 sm_gettail(s)
4003 char_u *s;
4004 {
4005 char_u *p;
4006 char_u *t = s;
4007 int had_sep = FALSE;
4008
4009 for (p = s; *p != NUL; )
4010 {
4011 if (vim_ispathsep(*p)
4012 #ifdef BACKSLASH_IN_FILENAME
4013 && !rem_backslash(p)
4014 #endif
4015 )
4016 had_sep = TRUE;
4017 else if (had_sep)
4018 {
4019 t = p;
4020 had_sep = FALSE;
4021 }
4022 mb_ptr_adv(p);
4023 }
4024 return t;
4025 }
4026
4027 /*
4028 * Return TRUE if we only need to show the tail of completion matches.
4029 * When not completing file names or there is a wildcard in the path FALSE is
4030 * returned.
4031 */
4032 static int
4033 expand_showtail(xp)
4034 expand_T *xp;
4035 {
4036 char_u *s;
4037 char_u *end;
4038
4039 /* When not completing file names a "/" may mean something different. */
4040 if (xp->xp_context != EXPAND_FILES
4041 && xp->xp_context != EXPAND_SHELLCMD
4042 && xp->xp_context != EXPAND_DIRECTORIES)
4043 return FALSE;
4044
4045 end = gettail(xp->xp_pattern);
4046 if (end == xp->xp_pattern) /* there is no path separator */
4047 return FALSE;
4048
4049 for (s = xp->xp_pattern; s < end; s++)
4050 {
4051 /* Skip escaped wildcards. Only when the backslash is not a path
4052 * separator, on DOS the '*' "path\*\file" must not be skipped. */
4053 if (rem_backslash(s))
4054 ++s;
4055 else if (vim_strchr((char_u *)"*?[", *s) != NULL)
4056 return FALSE;
4057 }
4058 return TRUE;
4059 }
4060
4061 /*
4062 * Prepare a string for expansion.
4063 * When expanding file names: The string will be used with expand_wildcards().
4064 * Copy the file name into allocated memory and add a '*' at the end.
4065 * When expanding other names: The string will be used with regcomp(). Copy
4066 * the name into allocated memory and prepend "^".
4067 */
4068 char_u *
4069 addstar(fname, len, context)
4070 char_u *fname;
4071 int len;
4072 int context; /* EXPAND_FILES etc. */
4073 {
4074 char_u *retval;
4075 int i, j;
4076 int new_len;
4077 char_u *tail;
4078
4079 if (context != EXPAND_FILES
4080 && context != EXPAND_SHELLCMD
4081 && context != EXPAND_DIRECTORIES)
4082 {
4083 /*
4084 * Matching will be done internally (on something other than files).
4085 * So we convert the file-matching-type wildcards into our kind for
4086 * use with vim_regcomp(). First work out how long it will be:
4087 */
4088
4089 /* For help tags the translation is done in find_help_tags().
4090 * For a tag pattern starting with "/" no translation is needed. */
4091 if (context == EXPAND_HELP
4092 || context == EXPAND_COLORS
4093 || context == EXPAND_COMPILER
4094 || (context == EXPAND_TAGS && fname[0] == '/'))
4095 retval = vim_strnsave(fname, len);
4096 else
4097 {
4098 new_len = len + 2; /* +2 for '^' at start, NUL at end */
4099 for (i = 0; i < len; i++)
4100 {
4101 if (fname[i] == '*' || fname[i] == '~')
4102 new_len++; /* '*' needs to be replaced by ".*"
4103 '~' needs to be replaced by "\~" */
4104
4105 /* Buffer names are like file names. "." should be literal */
4106 if (context == EXPAND_BUFFERS && fname[i] == '.')
4107 new_len++; /* "." becomes "\." */
4108
4109 /* Custom expansion takes care of special things, match
4110 * backslashes literally (perhaps also for other types?) */
4111 if ((context == EXPAND_USER_DEFINED
4112 || context == EXPAND_USER_LIST) && fname[i] == '\\')
4113 new_len++; /* '\' becomes "\\" */
4114 }
4115 retval = alloc(new_len);
4116 if (retval != NULL)
4117 {
4118 retval[0] = '^';
4119 j = 1;
4120 for (i = 0; i < len; i++, j++)
4121 {
4122 /* Skip backslash. But why? At least keep it for custom
4123 * expansion. */
4124 if (context != EXPAND_USER_DEFINED
4125 && context != EXPAND_USER_LIST
4126 && fname[i] == '\\'
4127 && ++i == len)
4128 break;
4129
4130 switch (fname[i])
4131 {
4132 case '*': retval[j++] = '.';
4133 break;
4134 case '~': retval[j++] = '\\';
4135 break;
4136 case '?': retval[j] = '.';
4137 continue;
4138 case '.': if (context == EXPAND_BUFFERS)
4139 retval[j++] = '\\';
4140 break;
4141 case '\\': if (context == EXPAND_USER_DEFINED
4142 || context == EXPAND_USER_LIST)
4143 retval[j++] = '\\';
4144 break;
4145 }
4146 retval[j] = fname[i];
4147 }
4148 retval[j] = NUL;
4149 }
4150 }
4151 }
4152 else
4153 {
4154 retval = alloc(len + 4);
4155 if (retval != NULL)
4156 {
4157 vim_strncpy(retval, fname, len);
4158
4159 /*
4160 * Don't add a star to *, ~, ~user, $var or `cmd`.
4161 * * would become **, which walks the whole tree.
4162 * ~ would be at the start of the file name, but not the tail.
4163 * $ could be anywhere in the tail.
4164 * ` could be anywhere in the file name.
4165 * When the name ends in '$' don't add a star, remove the '$'.
4166 */
4167 tail = gettail(retval);
4168 if ((*retval != '~' || tail != retval)
4169 && (len == 0 || retval[len - 1] != '*')
4170 && vim_strchr(tail, '$') == NULL
4171 && vim_strchr(retval, '`') == NULL)
4172 retval[len++] = '*';
4173 else if (len > 0 && retval[len - 1] == '$')
4174 --len;
4175 retval[len] = NUL;
4176 }
4177 }
4178 return retval;
4179 }
4180
4181 /*
4182 * Must parse the command line so far to work out what context we are in.
4183 * Completion can then be done based on that context.
4184 * This routine sets the variables:
4185 * xp->xp_pattern The start of the pattern to be expanded within
4186 * the command line (ends at the cursor).
4187 * xp->xp_context The type of thing to expand. Will be one of:
4188 *
4189 * EXPAND_UNSUCCESSFUL Used sometimes when there is something illegal on
4190 * the command line, like an unknown command. Caller
4191 * should beep.
4192 * EXPAND_NOTHING Unrecognised context for completion, use char like
4193 * a normal char, rather than for completion. eg
4194 * :s/^I/
4195 * EXPAND_COMMANDS Cursor is still touching the command, so complete
4196 * it.
4197 * EXPAND_BUFFERS Complete file names for :buf and :sbuf commands.
4198 * EXPAND_FILES After command with XFILE set, or after setting
4199 * with P_EXPAND set. eg :e ^I, :w>>^I
4200 * EXPAND_DIRECTORIES In some cases this is used instead of the latter
4201 * when we know only directories are of interest. eg
4202 * :set dir=^I
4203 * EXPAND_SHELLCMD After ":!cmd", ":r !cmd" or ":w !cmd".
4204 * EXPAND_SETTINGS Complete variable names. eg :set d^I
4205 * EXPAND_BOOL_SETTINGS Complete boolean variables only, eg :set no^I
4206 * EXPAND_TAGS Complete tags from the files in p_tags. eg :ta a^I
4207 * EXPAND_TAGS_LISTFILES As above, but list filenames on ^D, after :tselect
4208 * EXPAND_HELP Complete tags from the file 'helpfile'/tags
4209 * EXPAND_EVENTS Complete event names
4210 * EXPAND_SYNTAX Complete :syntax command arguments
4211 * EXPAND_HIGHLIGHT Complete highlight (syntax) group names
4212 * EXPAND_AUGROUP Complete autocommand group names
4213 * EXPAND_USER_VARS Complete user defined variable names, eg :unlet a^I
4214 * EXPAND_MAPPINGS Complete mapping and abbreviation names,
4215 * eg :unmap a^I , :cunab x^I
4216 * EXPAND_FUNCTIONS Complete internal or user defined function names,
4217 * eg :call sub^I
4218 * EXPAND_USER_FUNC Complete user defined function names, eg :delf F^I
4219 * EXPAND_EXPRESSION Complete internal or user defined function/variable
4220 * names in expressions, eg :while s^I
4221 * EXPAND_ENV_VARS Complete environment variable names
4222 */
4223 static void
4224 set_expand_context(xp)
4225 expand_T *xp;
4226 {
4227 /* only expansion for ':', '>' and '=' command-lines */
4228 if (ccline.cmdfirstc != ':'
4229 #ifdef FEAT_EVAL
4230 && ccline.cmdfirstc != '>' && ccline.cmdfirstc != '='
4231 && !ccline.input_fn
4232 #endif
4233 )
4234 {
4235 xp->xp_context = EXPAND_NOTHING;
4236 return;
4237 }
4238 set_cmd_context(xp, ccline.cmdbuff, ccline.cmdlen, ccline.cmdpos);
4239 }
4240
4241 void
4242 set_cmd_context(xp, str, len, col)
4243 expand_T *xp;
4244 char_u *str; /* start of command line */
4245 int len; /* length of command line (excl. NUL) */
4246 int col; /* position of cursor */
4247 {
4248 int old_char = NUL;
4249 char_u *nextcomm;
4250
4251 /*
4252 * Avoid a UMR warning from Purify, only save the character if it has been
4253 * written before.
4254 */
4255 if (col < len)
4256 old_char = str[col];
4257 str[col] = NUL;
4258 nextcomm = str;
4259
4260 #ifdef FEAT_EVAL
4261 if (ccline.cmdfirstc == '=')
4262 {
4263 # ifdef FEAT_CMDL_COMPL
4264 /* pass CMD_SIZE because there is no real command */
4265 set_context_for_expression(xp, str, CMD_SIZE);
4266 # endif
4267 }
4268 else if (ccline.input_fn)
4269 {
4270 xp->xp_context = ccline.xp_context;
4271 xp->xp_pattern = ccline.cmdbuff;
4272 # if defined(FEAT_USR_CMDS) && defined(FEAT_CMDL_COMPL)
4273 xp->xp_arg = ccline.xp_arg;
4274 # endif
4275 }
4276 else
4277 #endif
4278 while (nextcomm != NULL)
4279 nextcomm = set_one_cmd_context(xp, nextcomm);
4280
4281 str[col] = old_char;
4282 }
4283
4284 /*
4285 * Expand the command line "str" from context "xp".
4286 * "xp" must have been set by set_cmd_context().
4287 * xp->xp_pattern points into "str", to where the text that is to be expanded
4288 * starts.
4289 * Returns EXPAND_UNSUCCESSFUL when there is something illegal before the
4290 * cursor.
4291 * Returns EXPAND_NOTHING when there is nothing to expand, might insert the
4292 * key that triggered expansion literally.
4293 * Returns EXPAND_OK otherwise.
4294 */
4295 int
4296 expand_cmdline(xp, str, col, matchcount, matches)
4297 expand_T *xp;
4298 char_u *str; /* start of command line */
4299 int col; /* position of cursor */
4300 int *matchcount; /* return: nr of matches */
4301 char_u ***matches; /* return: array of pointers to matches */
4302 {
4303 char_u *file_str = NULL;
4304
4305 if (xp->xp_context == EXPAND_UNSUCCESSFUL)
4306 {
4307 beep_flush();
4308 return EXPAND_UNSUCCESSFUL; /* Something illegal on command line */
4309 }
4310 if (xp->xp_context == EXPAND_NOTHING)
4311 {
4312 /* Caller can use the character as a normal char instead */
4313 return EXPAND_NOTHING;
4314 }
4315
4316 /* add star to file name, or convert to regexp if not exp. files. */
4317 file_str = addstar(xp->xp_pattern,
4318 (int)(str + col - xp->xp_pattern), xp->xp_context);
4319 if (file_str == NULL)
4320 return EXPAND_UNSUCCESSFUL;
4321
4322 /* find all files that match the description */
4323 if (ExpandFromContext(xp, file_str, matchcount, matches,
4324 WILD_ADD_SLASH|WILD_SILENT) == FAIL)
4325 {
4326 *matchcount = 0;
4327 *matches = NULL;
4328 }
4329 vim_free(file_str);
4330
4331 return EXPAND_OK;
4332 }
4333
4334 #ifdef FEAT_MULTI_LANG
4335 /*
4336 * Cleanup matches for help tags: remove "@en" if "en" is the only language.
4337 */
4338 static void cleanup_help_tags __ARGS((int num_file, char_u **file));
4339
4340 static void
4341 cleanup_help_tags(num_file, file)
4342 int num_file;
4343 char_u **file;
4344 {
4345 int i, j;
4346 int len;
4347
4348 for (i = 0; i < num_file; ++i)
4349 {
4350 len = (int)STRLEN(file[i]) - 3;
4351 if (len > 0 && STRCMP(file[i] + len, "@en") == 0)
4352 {
4353 /* Sorting on priority means the same item in another language may
4354 * be anywhere. Search all items for a match up to the "@en". */
4355 for (j = 0; j < num_file; ++j)
4356 if (j != i
4357 && (int)STRLEN(file[j]) == len + 3
4358 && STRNCMP(file[i], file[j], len + 1) == 0)
4359 break;
4360 if (j == num_file)
4361 file[i][len] = NUL;
4362 }
4363 }
4364 }
4365 #endif
4366
4367 /*
4368 * Do the expansion based on xp->xp_context and "pat".
4369 */
4370 static int
4371 ExpandFromContext(xp, pat, num_file, file, options)
4372 expand_T *xp;
4373 char_u *pat;
4374 int *num_file;
4375 char_u ***file;
4376 int options;
4377 {
4378 #ifdef FEAT_CMDL_COMPL
4379 regmatch_T regmatch;
4380 #endif
4381 int ret;
4382 int flags;
4383
4384 flags = EW_DIR; /* include directories */
4385 if (options & WILD_LIST_NOTFOUND)
4386 flags |= EW_NOTFOUND;
4387 if (options & WILD_ADD_SLASH)
4388 flags |= EW_ADDSLASH;
4389 if (options & WILD_KEEP_ALL)
4390 flags |= EW_KEEPALL;
4391 if (options & WILD_SILENT)
4392 flags |= EW_SILENT;
4393
4394 if (xp->xp_context == EXPAND_FILES || xp->xp_context == EXPAND_DIRECTORIES)
4395 {
4396 /*
4397 * Expand file or directory names.
4398 */
4399 int free_pat = FALSE;
4400 int i;
4401
4402 /* for ":set path=" and ":set tags=" halve backslashes for escaped
4403 * space */
4404 if (xp->xp_backslash != XP_BS_NONE)
4405 {
4406 free_pat = TRUE;
4407 pat = vim_strsave(pat);
4408 for (i = 0; pat[i]; ++i)
4409 if (pat[i] == '\\')
4410 {
4411 if (xp->xp_backslash == XP_BS_THREE
4412 && pat[i + 1] == '\\'
4413 && pat[i + 2] == '\\'
4414 && pat[i + 3] == ' ')
4415 STRMOVE(pat + i, pat + i + 3);
4416 if (xp->xp_backslash == XP_BS_ONE
4417 && pat[i + 1] == ' ')
4418 STRMOVE(pat + i, pat + i + 1);
4419 }
4420 }
4421
4422 if (xp->xp_context == EXPAND_FILES)
4423 flags |= EW_FILE;
4424 else
4425 flags = (flags | EW_DIR) & ~EW_FILE;
4426 ret = expand_wildcards(1, &pat, num_file, file, flags);
4427 if (free_pat)
4428 vim_free(pat);
4429 return ret;
4430 }
4431
4432 *file = (char_u **)"";
4433 *num_file = 0;
4434 if (xp->xp_context == EXPAND_HELP)
4435 {
4436 /* With an empty argument we would get all the help tags, which is
4437 * very slow. Get matches for "help" instead. */
4438 if (find_help_tags(*pat == NUL ? (char_u *)"help" : pat,
4439 num_file, file, FALSE) == OK)
4440 {
4441 #ifdef FEAT_MULTI_LANG
4442 cleanup_help_tags(*num_file, *file);
4443 #endif
4444 return OK;
4445 }
4446 return FAIL;
4447 }
4448
4449 #ifndef FEAT_CMDL_COMPL
4450 return FAIL;
4451 #else
4452 if (xp->xp_context == EXPAND_SHELLCMD)
4453 return expand_shellcmd(pat, num_file, file, flags);
4454 if (xp->xp_context == EXPAND_OLD_SETTING)
4455 return ExpandOldSetting(num_file, file);
4456 if (xp->xp_context == EXPAND_BUFFERS)
4457 return ExpandBufnames(pat, num_file, file, options);
4458 if (xp->xp_context == EXPAND_TAGS
4459 || xp->xp_context == EXPAND_TAGS_LISTFILES)
4460 return expand_tags(xp->xp_context == EXPAND_TAGS, pat, num_file, file);
4461 if (xp->xp_context == EXPAND_COLORS)
4462 return ExpandRTDir(pat, num_file, file, "colors");
4463 if (xp->xp_context == EXPAND_COMPILER)
4464 return ExpandRTDir(pat, num_file, file, "compiler");
4465 # if defined(FEAT_USR_CMDS) && defined(FEAT_EVAL)
4466 if (xp->xp_context == EXPAND_USER_LIST)
4467 return ExpandUserList(xp, num_file, file);
4468 # endif
4469
4470 regmatch.regprog = vim_regcomp(pat, p_magic ? RE_MAGIC : 0);
4471 if (regmatch.regprog == NULL)
4472 return FAIL;
4473
4474 /* set ignore-case according to p_ic, p_scs and pat */
4475 regmatch.rm_ic = ignorecase(pat);
4476
4477 if (xp->xp_context == EXPAND_SETTINGS
4478 || xp->xp_context == EXPAND_BOOL_SETTINGS)
4479 ret = ExpandSettings(xp, &regmatch, num_file, file);
4480 else if (xp->xp_context == EXPAND_MAPPINGS)
4481 ret = ExpandMappings(&regmatch, num_file, file);
4482 # if defined(FEAT_USR_CMDS) && defined(FEAT_EVAL)
4483 else if (xp->xp_context == EXPAND_USER_DEFINED)
4484 ret = ExpandUserDefined(xp, &regmatch, num_file, file);
4485 # endif
4486 else
4487 {
4488 static struct expgen
4489 {
4490 int context;
4491 char_u *((*func)__ARGS((expand_T *, int)));
4492 int ic;
4493 } tab[] =
4494 {
4495 {EXPAND_COMMANDS, get_command_name, FALSE},
4496 #ifdef FEAT_USR_CMDS
4497 {EXPAND_USER_COMMANDS, get_user_commands, FALSE},
4498 {EXPAND_USER_CMD_FLAGS, get_user_cmd_flags, FALSE},
4499 {EXPAND_USER_NARGS, get_user_cmd_nargs, FALSE},
4500 {EXPAND_USER_COMPLETE, get_user_cmd_complete, FALSE},
4501 #endif
4502 #ifdef FEAT_EVAL
4503 {EXPAND_USER_VARS, get_user_var_name, FALSE},
4504 {EXPAND_FUNCTIONS, get_function_name, FALSE},
4505 {EXPAND_USER_FUNC, get_user_func_name, FALSE},
4506 {EXPAND_EXPRESSION, get_expr_name, FALSE},
4507 #endif
4508 #ifdef FEAT_MENU
4509 {EXPAND_MENUS, get_menu_name, FALSE},
4510 {EXPAND_MENUNAMES, get_menu_names, FALSE},
4511 #endif
4512 #ifdef FEAT_SYN_HL
4513 {EXPAND_SYNTAX, get_syntax_name, TRUE},
4514 #endif
4515 {EXPAND_HIGHLIGHT, get_highlight_name, TRUE},
4516 #ifdef FEAT_AUTOCMD
4517 {EXPAND_EVENTS, get_event_name, TRUE},
4518 {EXPAND_AUGROUP, get_augroup_name, TRUE},
4519 #endif
4520 #ifdef FEAT_CSCOPE
4521 {EXPAND_CSCOPE, get_cscope_name, TRUE},
4522 #endif
4523 #ifdef FEAT_SIGNS
4524 {EXPAND_SIGN, get_sign_name, TRUE},
4525 #endif
4526 #if (defined(HAVE_LOCALE_H) || defined(X_LOCALE)) \
4527 && (defined(FEAT_GETTEXT) || defined(FEAT_MBYTE))
4528 {EXPAND_LANGUAGE, get_lang_arg, TRUE},
4529 #endif
4530 {EXPAND_ENV_VARS, get_env_name, TRUE},
4531 #ifdef FEAT_GUI_MACVIM
4532 {EXPAND_MACACTION, get_macaction_name, FALSE},
4533 #endif
4534 };
4535 int i;
4536
4537 /*
4538 * Find a context in the table and call the ExpandGeneric() with the
4539 * right function to do the expansion.
4540 */
4541 ret = FAIL;
4542 for (i = 0; i < (int)(sizeof(tab) / sizeof(struct expgen)); ++i)
4543 if (xp->xp_context == tab[i].context)
4544 {
4545 if (tab[i].ic)
4546 regmatch.rm_ic = TRUE;
4547 ret = ExpandGeneric(xp, &regmatch, num_file, file, tab[i].func);
4548 break;
4549 }
4550 }
4551
4552 vim_free(regmatch.regprog);
4553
4554 return ret;
4555 #endif /* FEAT_CMDL_COMPL */
4556 }
4557
4558 #if defined(FEAT_CMDL_COMPL) || defined(PROTO)
4559 /*
4560 * Expand a list of names.
4561 *
4562 * Generic function for command line completion. It calls a function to
4563 * obtain strings, one by one. The strings are matched against a regexp
4564 * program. Matching strings are copied into an array, which is returned.
4565 *
4566 * Returns OK when no problems encountered, FAIL for error (out of memory).
4567 */
4568 int
4569 ExpandGeneric(xp, regmatch, num_file, file, func)
4570 expand_T *xp;
4571 regmatch_T *regmatch;
4572 int *num_file;
4573 char_u ***file;
4574 char_u *((*func)__ARGS((expand_T *, int)));
4575 /* returns a string from the list */
4576 {
4577 int i;
4578 int count = 0;
4579 int round;
4580 char_u *str;
4581
4582 /* do this loop twice:
4583 * round == 0: count the number of matching names
4584 * round == 1: copy the matching names into allocated memory
4585 */
4586 for (round = 0; round <= 1; ++round)
4587 {
4588 for (i = 0; ; ++i)
4589 {
4590 str = (*func)(xp, i);
4591 if (str == NULL) /* end of list */
4592 break;
4593 if (*str == NUL) /* skip empty strings */
4594 continue;
4595
4596 if (vim_regexec(regmatch, str, (colnr_T)0))
4597 {
4598 if (round)
4599 {
4600 str = vim_strsave_escaped(str, (char_u *)" \t\\.");
4601 (*file)[count] = str;
4602 #ifdef FEAT_MENU
4603 if (func == get_menu_names && str != NULL)
4604 {
4605 /* test for separator added by get_menu_names() */
4606 str += STRLEN(str) - 1;
4607 if (*str == '\001')
4608 *str = '.';
4609 }
4610 #endif
4611 }
4612 ++count;
4613 }
4614 }
4615 if (round == 0)
4616 {
4617 if (count == 0)
4618 return OK;
4619 *num_file = count;
4620 *file = (char_u **)alloc((unsigned)(count * sizeof(char_u *)));
4621 if (*file == NULL)
4622 {
4623 *file = (char_u **)"";
4624 return FAIL;
4625 }
4626 count = 0;
4627 }
4628 }
4629
4630 /* Sort the results. Keep menu's in the specified order. */
4631 if (xp->xp_context != EXPAND_MENUNAMES && xp->xp_context != EXPAND_MENUS)
4632 sort_strings(*file, *num_file);
4633
4634 #ifdef FEAT_CMDL_COMPL
4635 /* Reset the variables used for special highlight names expansion, so that
4636 * they don't show up when getting normal highlight names by ID. */
4637 reset_expand_highlight();
4638 #endif
4639
4640 return OK;
4641 }
4642
4643 /*
4644 * Complete a shell command.
4645 * Returns FAIL or OK;
4646 */
4647 static int
4648 expand_shellcmd(filepat, num_file, file, flagsarg)
4649 char_u *filepat; /* pattern to match with command names */
4650 int *num_file; /* return: number of matches */
4651 char_u ***file; /* return: array with matches */
4652 int flagsarg; /* EW_ flags */
4653 {
4654 char_u *pat;
4655 int i;
4656 char_u *path;
4657 int mustfree = FALSE;
4658 garray_T ga;
4659 char_u *buf = alloc(MAXPATHL);
4660 size_t l;
4661 char_u *s, *e;
4662 int flags = flagsarg;
4663 int ret;
4664
4665 if (buf == NULL)
4666 return FAIL;
4667
4668 /* for ":set path=" and ":set tags=" halve backslashes for escaped
4669 * space */
4670 pat = vim_strsave(filepat);
4671 for (i = 0; pat[i]; ++i)
4672 if (pat[i] == '\\' && pat[i + 1] == ' ')
4673 STRMOVE(pat + i, pat + i + 1);
4674
4675 flags |= EW_FILE | EW_EXEC;
4676
4677 /* For an absolute name we don't use $PATH. */
4678 if (mch_isFullName(pat))
4679 path = (char_u *)" ";
4680 else if ((pat[0] == '.' && (vim_ispathsep(pat[1])
4681 || (pat[1] == '.' && vim_ispathsep(pat[2])))))
4682 path = (char_u *)".";
4683 else
4684 path = vim_getenv((char_u *)"PATH", &mustfree);
4685
4686 /*
4687 * Go over all directories in $PATH. Expand matches in that directory and
4688 * collect them in "ga".
4689 */
4690 ga_init2(&ga, (int)sizeof(char *), 10);
4691 for (s = path; *s != NUL; s = e)
4692 {
4693 if (*s == ' ')
4694 ++s; /* Skip space used for absolute path name. */
4695
4696 #if defined(MSDOS) || defined(MSWIN) || defined(OS2)
4697 e = vim_strchr(s, ';');
4698 #else
4699 e = vim_strchr(s, ':');
4700 #endif
4701 if (e == NULL)
4702 e = s + STRLEN(s);
4703
4704 l = e - s;
4705 if (l > MAXPATHL - 5)
4706 break;
4707 vim_strncpy(buf, s, l);
4708 add_pathsep(buf);
4709 l = STRLEN(buf);
4710 vim_strncpy(buf + l, pat, MAXPATHL - 1 - l);
4711
4712 /* Expand matches in one directory of $PATH. */
4713 ret = expand_wildcards(1, &buf, num_file, file, flags);
4714 if (ret == OK)
4715 {
4716 if (ga_grow(&ga, *num_file) == FAIL)
4717 FreeWild(*num_file, *file);
4718 else
4719 {
4720 for (i = 0; i < *num_file; ++i)
4721 {
4722 s = (*file)[i];
4723 if (STRLEN(s) > l)
4724 {
4725 /* Remove the path again. */
4726 STRMOVE(s, s + l);
4727 ((char_u **)ga.ga_data)[ga.ga_len++] = s;
4728 }
4729 else
4730 vim_free(s);
4731 }
4732 vim_free(*file);
4733 }
4734 }
4735 if (*e != NUL)
4736 ++e;
4737 }
4738 *file = ga.ga_data;
4739 *num_file = ga.ga_len;
4740
4741 vim_free(buf);
4742 vim_free(pat);
4743 if (mustfree)
4744 vim_free(path);
4745 return OK;
4746 }
4747
4748
4749 # if defined(FEAT_USR_CMDS) && defined(FEAT_EVAL)
4750 static void * call_user_expand_func __ARGS((void *(*user_expand_func) __ARGS((char_u *, int, char_u **, int)), expand_T *xp, int *num_file, char_u ***file));
4751
4752 /*
4753 * Call "user_expand_func()" to invoke a user defined VimL function and return
4754 * the result (either a string or a List).
4755 */
4756 static void *
4757 call_user_expand_func(user_expand_func, xp, num_file, file)
4758 void *(*user_expand_func) __ARGS((char_u *, int, char_u **, int));
4759 expand_T *xp;
4760 int *num_file;
4761 char_u ***file;
4762 {
4763 char_u keep;
4764 char_u num[50];
4765 char_u *args[3];
4766 int save_current_SID = current_SID;
4767 void *ret;
4768 struct cmdline_info save_ccline;
4769
4770 if (xp->xp_arg == NULL || xp->xp_arg[0] == '\0')
4771 return NULL;
4772 *num_file = 0;
4773 *file = NULL;
4774
4775 if (ccline.cmdbuff == NULL)
4776 {
4777 /* Completion from Insert mode, pass fake arguments. */
4778 keep = 0;
4779 sprintf((char *)num, "%d", (int)STRLEN(xp->xp_pattern));
4780 args[1] = xp->xp_pattern;
4781 }
4782 else
4783 {
4784 /* Completion on the command line, pass real arguments. */
4785 keep = ccline.cmdbuff[ccline.cmdlen];
4786 ccline.cmdbuff[ccline.cmdlen] = 0;
4787 sprintf((char *)num, "%d", ccline.cmdpos);
4788 args[1] = ccline.cmdbuff;
4789 }
4790 args[0] = xp->xp_pattern;
4791 args[2] = num;
4792
4793 /* Save the cmdline, we don't know what the function may do. */
4794 save_ccline = ccline;
4795 ccline.cmdbuff = NULL;
4796 ccline.cmdprompt = NULL;
4797 current_SID = xp->xp_scriptID;
4798
4799 ret = user_expand_func(xp->xp_arg, 3, args, FALSE);
4800
4801 ccline = save_ccline;
4802 current_SID = save_current_SID;
4803 if (ccline.cmdbuff != NULL)
4804 ccline.cmdbuff[ccline.cmdlen] = keep;
4805
4806 return ret;
4807 }
4808
4809 /*
4810 * Expand names with a function defined by the user.
4811 */
4812 static int
4813 ExpandUserDefined(xp, regmatch, num_file, file)
4814 expand_T *xp;
4815 regmatch_T *regmatch;
4816 int *num_file;
4817 char_u ***file;
4818 {
4819 char_u *retstr;
4820 char_u *s;
4821 char_u *e;
4822 char_u keep;
4823 garray_T ga;
4824
4825 retstr = call_user_expand_func(call_func_retstr, xp, num_file, file);
4826 if (retstr == NULL)
4827 return FAIL;
4828
4829 ga_init2(&ga, (int)sizeof(char *), 3);
4830 for (s = retstr; *s != NUL; s = e)
4831 {
4832 e = vim_strchr(s, '\n');
4833 if (e == NULL)
4834 e = s + STRLEN(s);
4835 keep = *e;
4836 *e = 0;
4837
4838 if (xp->xp_pattern[0] && vim_regexec(regmatch, s, (colnr_T)0) == 0)
4839 {
4840 *e = keep;
4841 if (*e != NUL)
4842 ++e;
4843 continue;
4844 }
4845
4846 if (ga_grow(&ga, 1) == FAIL)
4847 break;
4848
4849 ((char_u **)ga.ga_data)[ga.ga_len] = vim_strnsave(s, (int)(e - s));
4850 ++ga.ga_len;
4851
4852 *e = keep;
4853 if (*e != NUL)
4854 ++e;
4855 }
4856 vim_free(retstr);
4857 *file = ga.ga_data;
4858 *num_file = ga.ga_len;
4859 return OK;
4860 }
4861
4862 /*
4863 * Expand names with a list returned by a function defined by the user.
4864 */
4865 static int
4866 ExpandUserList(xp, num_file, file)
4867 expand_T *xp;
4868 int *num_file;
4869 char_u ***file;
4870 {
4871 list_T *retlist;
4872 listitem_T *li;
4873 garray_T ga;
4874
4875 retlist = call_user_expand_func(call_func_retlist, xp, num_file, file);
4876 if (retlist == NULL)
4877 return FAIL;
4878
4879 ga_init2(&ga, (int)sizeof(char *), 3);
4880 /* Loop over the items in the list. */
4881 for (li = retlist->lv_first; li != NULL; li = li->li_next)
4882 {
4883 if (li->li_tv.v_type != VAR_STRING || li->li_tv.vval.v_string == NULL)
4884 continue; /* Skip non-string items and empty strings */
4885
4886 if (ga_grow(&ga, 1) == FAIL)
4887 break;
4888
4889 ((char_u **)ga.ga_data)[ga.ga_len] =
4890 vim_strsave(li->li_tv.vval.v_string);
4891 ++ga.ga_len;
4892 }
4893 list_unref(retlist);
4894
4895 *file = ga.ga_data;
4896 *num_file = ga.ga_len;
4897 return OK;
4898 }
4899 #endif
4900
4901 /*
4902 * Expand color scheme names: 'runtimepath'/colors/{pat}.vim
4903 * or compiler names.
4904 */
4905 static int
4906 ExpandRTDir(pat, num_file, file, dirname)
4907 char_u *pat;
4908 int *num_file;
4909 char_u ***file;
4910 char *dirname; /* "colors" or "compiler" */
4911 {
4912 char_u *all;
4913 char_u *s;
4914 char_u *e;
4915 garray_T ga;
4916
4917 *num_file = 0;
4918 *file = NULL;
4919 s = alloc((unsigned)(STRLEN(pat) + STRLEN(dirname) + 7));
4920 if (s == NULL)
4921 return FAIL;
4922 sprintf((char *)s, "%s/%s*.vim", dirname, pat);
4923 all = globpath(p_rtp, s, 0);
4924 vim_free(s);
4925 if (all == NULL)
4926 return FAIL;
4927
4928 ga_init2(&ga, (int)sizeof(char *), 3);
4929 for (s = all; *s != NUL; s = e)
4930 {
4931 e = vim_strchr(s, '\n');
4932 if (e == NULL)
4933 e = s + STRLEN(s);
4934 if (ga_grow(&ga, 1) == FAIL)
4935 break;
4936 if (e - 4 > s && STRNICMP(e - 4, ".vim", 4) == 0)
4937 {
4938 for (s = e - 4; s > all; mb_ptr_back(all, s))
4939 if (*s == '\n' || vim_ispathsep(*s))
4940 break;
4941 ++s;
4942 ((char_u **)ga.ga_data)[ga.ga_len] =
4943 vim_strnsave(s, (int)(e - s - 4));
4944 ++ga.ga_len;
4945 }
4946 if (*e != NUL)
4947 ++e;
4948 }
4949 vim_free(all);
4950 *file = ga.ga_data;
4951 *num_file = ga.ga_len;
4952 return OK;
4953 }
4954
4955 #endif
4956
4957 #if defined(FEAT_CMDL_COMPL) || defined(FEAT_EVAL) || defined(PROTO)
4958 /*
4959 * Expand "file" for all comma-separated directories in "path".
4960 * Returns an allocated string with all matches concatenated, separated by
4961 * newlines. Returns NULL for an error or no matches.
4962 */
4963 char_u *
4964 globpath(path, file, expand_options)
4965 char_u *path;
4966 char_u *file;
4967 int expand_options;
4968 {
4969 expand_T xpc;
4970 char_u *buf;
4971 garray_T ga;
4972 int i;
4973 int len;
4974 int num_p;
4975 char_u **p;
4976 char_u *cur = NULL;
4977
4978 buf = alloc(MAXPATHL);
4979 if (buf == NULL)
4980 return NULL;
4981
4982 ExpandInit(&xpc);
4983 xpc.xp_context = EXPAND_FILES;
4984
4985 ga_init2(&ga, 1, 100);
4986
4987 /* Loop over all entries in {path}. */
4988 while (*path != NUL)
4989 {
4990 /* Copy one item of the path to buf[] and concatenate the file name. */
4991 copy_option_part(&path, buf, MAXPATHL, ",");
4992 if (STRLEN(buf) + STRLEN(file) + 2 < MAXPATHL)
4993 {
4994 add_pathsep(buf);
4995 STRCAT(buf, file);
4996 if (ExpandFromContext(&xpc, buf, &num_p, &p,
4997 WILD_SILENT|expand_options) != FAIL && num_p > 0)
4998 {
4999 ExpandEscape(&xpc, buf, num_p, p, WILD_SILENT|expand_options);
5000 for (len = 0, i = 0; i < num_p; ++i)
5001 len += (int)STRLEN(p[i]) + 1;
5002
5003 /* Concatenate new results to previous ones. */
5004 if (ga_grow(&ga, len) == OK)
5005 {
5006 cur = (char_u *)ga.ga_data + ga.ga_len;
5007 for (i = 0; i < num_p; ++i)
5008 {
5009 STRCPY(cur, p[i]);
5010 cur += STRLEN(p[i]);
5011 *cur++ = '\n';
5012 }
5013 ga.ga_len += len;
5014 }
5015 FreeWild(num_p, p);
5016 }
5017 }
5018 }
5019 if (cur != NULL)
5020 *--cur = 0; /* Replace trailing newline with NUL */
5021
5022 vim_free(buf);
5023 return (char_u *)ga.ga_data;
5024 }
5025
5026 #endif
5027
5028 #if defined(FEAT_CMDHIST) || defined(PROTO)
5029
5030 /*********************************
5031 * Command line history stuff *
5032 *********************************/
5033
5034 /*
5035 * Translate a history character to the associated type number.
5036 */
5037 static int
5038 hist_char2type(c)
5039 int c;
5040 {
5041 if (c == ':')
5042 return HIST_CMD;
5043 if (c == '=')
5044 return HIST_EXPR;
5045 if (c == '@')
5046 return HIST_INPUT;
5047 if (c == '>')
5048 return HIST_DEBUG;
5049 return HIST_SEARCH; /* must be '?' or '/' */
5050 }
5051
5052 /*
5053 * Table of history names.
5054 * These names are used in :history and various hist...() functions.
5055 * It is sufficient to give the significant prefix of a history name.
5056 */
5057
5058 static char *(history_names[]) =
5059 {
5060 "cmd",
5061 "search",
5062 "expr",
5063 "input",
5064 "debug",
5065 NULL
5066 };
5067
5068 /*
5069 * init_history() - Initialize the command line history.
5070 * Also used to re-allocate the history when the size changes.
5071 */
5072 void
5073 init_history()
5074 {
5075 int newlen; /* new length of history table */
5076 histentry_T *temp;
5077 int i;
5078 int j;
5079 int type;
5080
5081 /*
5082 * If size of history table changed, reallocate it
5083 */
5084 newlen = (int)p_hi;
5085 if (newlen != hislen) /* history length changed */
5086 {
5087 for (type = 0; type < HIST_COUNT; ++type) /* adjust the tables */
5088 {
5089 if (newlen)
5090 {
5091 temp = (histentry_T *)lalloc(
5092 (long_u)(newlen * sizeof(histentry_T)), TRUE);
5093 if (temp == NULL) /* out of memory! */
5094 {
5095 if (type == 0) /* first one: just keep the old length */
5096 {
5097 newlen = hislen;
5098 break;
5099 }
5100 /* Already changed one table, now we can only have zero
5101 * length for all tables. */
5102 newlen = 0;
5103 type = -1;
5104 continue;
5105 }
5106 }
5107 else
5108 temp = NULL;
5109 if (newlen == 0 || temp != NULL)
5110 {
5111 if (hisidx[type] < 0) /* there are no entries yet */
5112 {
5113 for (i = 0; i < newlen; ++i)
5114 {
5115 temp[i].hisnum = 0;
5116 temp[i].hisstr = NULL;
5117 }
5118 }
5119 else if (newlen > hislen) /* array becomes bigger */
5120 {
5121 for (i = 0; i <= hisidx[type]; ++i)
5122 temp[i] = history[type][i];
5123 j = i;
5124 for ( ; i <= newlen - (hislen - hisidx[type]); ++i)
5125 {
5126 temp[i].hisnum = 0;
5127 temp[i].hisstr = NULL;
5128 }
5129 for ( ; j < hislen; ++i, ++j)
5130 temp[i] = history[type][j];
5131 }
5132 else /* array becomes smaller or 0 */
5133 {
5134 j = hisidx[type];
5135 for (i = newlen - 1; ; --i)
5136 {
5137 if (i >= 0) /* copy newest entries */
5138 temp[i] = history[type][j];
5139 else /* remove older entries */
5140 vim_free(history[type][j].hisstr);
5141 if (--j < 0)
5142 j = hislen - 1;
5143 if (j == hisidx[type])
5144 break;
5145 }
5146 hisidx[type] = newlen - 1;
5147 }
5148 vim_free(history[type]);
5149 history[type] = temp;
5150 }
5151 }
5152 hislen = newlen;
5153 }
5154 }
5155
5156 /*
5157 * Check if command line 'str' is already in history.
5158 * If 'move_to_front' is TRUE, matching entry is moved to end of history.
5159 */
5160 static int
5161 in_history(type, str, move_to_front)
5162 int type;
5163 char_u *str;
5164 int move_to_front; /* Move the entry to the front if it exists */
5165 {
5166 int i;
5167 int last_i = -1;
5168
5169 if (hisidx[type] < 0)
5170 return FALSE;
5171 i = hisidx[type];
5172 do
5173 {
5174 if (history[type][i].hisstr == NULL)
5175 return FALSE;
5176 if (STRCMP(str, history[type][i].hisstr) == 0)
5177 {
5178 if (!move_to_front)
5179 return TRUE;
5180 last_i = i;
5181 break;
5182 }
5183 if (--i < 0)
5184 i = hislen - 1;
5185 } while (i != hisidx[type]);
5186
5187 if (last_i >= 0)
5188 {
5189 str = history[type][i].hisstr;
5190 while (i != hisidx[type])
5191 {
5192 if (++i >= hislen)
5193 i = 0;
5194 history[type][last_i] = history[type][i];
5195 last_i = i;
5196 }
5197 history[type][i].hisstr = str;
5198 history[type][i].hisnum = ++hisnum[type];
5199 return TRUE;
5200 }
5201 return FALSE;
5202 }
5203
5204 /*
5205 * Convert history name (from table above) to its HIST_ equivalent.
5206 * When "name" is empty, return "cmd" history.
5207 * Returns -1 for unknown history name.
5208 */
5209 int
5210 get_histtype(name)
5211 char_u *name;
5212 {
5213 int i;
5214 int len = (int)STRLEN(name);
5215
5216 /* No argument: use current history. */
5217 if (len == 0)
5218 return hist_char2type(ccline.cmdfirstc);
5219
5220 for (i = 0; history_names[i] != NULL; ++i)
5221 if (STRNICMP(name, history_names[i], len) == 0)
5222 return i;
5223
5224 if (vim_strchr((char_u *)":=@>?/", name[0]) != NULL && name[1] == NUL)
5225 return hist_char2type(name[0]);
5226
5227 return -1;
5228 }
5229
5230 static int last_maptick = -1; /* last seen maptick */
5231
5232 /*
5233 * Add the given string to the given history. If the string is already in the
5234 * history then it is moved to the front. "histype" may be one of he HIST_
5235 * values.
5236 */
5237 void
5238 add_to_history(histype, new_entry, in_map, sep)
5239 int histype;
5240 char_u *new_entry;
5241 int in_map; /* consider maptick when inside a mapping */
5242 int sep; /* separator character used (search hist) */
5243 {
5244 histentry_T *hisptr;
5245 int len;
5246
5247 if (hislen == 0) /* no history */
5248 return;
5249
5250 /*
5251 * Searches inside the same mapping overwrite each other, so that only
5252 * the last line is kept. Be careful not to remove a line that was moved
5253 * down, only lines that were added.
5254 */
5255 if (histype == HIST_SEARCH && in_map)
5256 {
5257 if (maptick == last_maptick)
5258 {
5259 /* Current line is from the same mapping, remove it */
5260 hisptr = &history[HIST_SEARCH][hisidx[HIST_SEARCH]];
5261 vim_free(hisptr->hisstr);
5262 hisptr->hisstr = NULL;
5263 hisptr->hisnum = 0;
5264 --hisnum[histype];
5265 if (--hisidx[HIST_SEARCH] < 0)
5266 hisidx[HIST_SEARCH] = hislen - 1;
5267 }
5268 last_maptick = -1;
5269 }
5270 if (!in_history(histype, new_entry, TRUE))
5271 {
5272 if (++hisidx[histype] == hislen)
5273 hisidx[histype] = 0;
5274 hisptr = &history[histype][hisidx[histype]];
5275 vim_free(hisptr->hisstr);
5276
5277 /* Store the separator after the NUL of the string. */
5278 len = (int)STRLEN(new_entry);
5279 hisptr->hisstr = vim_strnsave(new_entry, len + 2);
5280 if (hisptr->hisstr != NULL)
5281 hisptr->hisstr[len + 1] = sep;
5282
5283 hisptr->hisnum = ++hisnum[histype];
5284 if (histype == HIST_SEARCH && in_map)
5285 last_maptick = maptick;
5286 }
5287 }
5288
5289 #if defined(FEAT_EVAL) || defined(PROTO)
5290
5291 /*
5292 * Get identifier of newest history entry.
5293 * "histype" may be one of the HIST_ values.
5294 */
5295 int
5296 get_history_idx(histype)
5297 int histype;
5298 {
5299 if (hislen == 0 || histype < 0 || histype >= HIST_COUNT
5300 || hisidx[histype] < 0)
5301 return -1;
5302
5303 return history[histype][hisidx[histype]].hisnum;
5304 }
5305
5306 static struct cmdline_info *get_ccline_ptr __ARGS((void));
5307
5308 /*
5309 * Get pointer to the command line info to use. cmdline_paste() may clear
5310 * ccline and put the previous value in prev_ccline.
5311 */
5312 static struct cmdline_info *
5313 get_ccline_ptr()
5314 {
5315 if ((State & CMDLINE) == 0)
5316 return NULL;
5317 if (ccline.cmdbuff != NULL)
5318 return &ccline;
5319 if (prev_ccline_used && prev_ccline.cmdbuff != NULL)
5320 return &prev_ccline;
5321 return NULL;
5322 }
5323
5324 /*
5325 * Get the current command line in allocated memory.
5326 * Only works when the command line is being edited.
5327 * Returns NULL when something is wrong.
5328 */
5329 char_u *
5330 get_cmdline_str()
5331 {
5332 struct cmdline_info *p = get_ccline_ptr();
5333
5334 if (p == NULL)
5335 return NULL;
5336 return vim_strnsave(p->cmdbuff, p->cmdlen);
5337 }
5338
5339 /*
5340 * Get the current command line position, counted in bytes.
5341 * Zero is the first position.
5342 * Only works when the command line is being edited.
5343 * Returns -1 when something is wrong.
5344 */
5345 int
5346 get_cmdline_pos()
5347 {
5348 struct cmdline_info *p = get_ccline_ptr();
5349
5350 if (p == NULL)
5351 return -1;
5352 return p->cmdpos;
5353 }
5354
5355 /*
5356 * Set the command line byte position to "pos". Zero is the first position.
5357 * Only works when the command line is being edited.
5358 * Returns 1 when failed, 0 when OK.
5359 */
5360 int
5361 set_cmdline_pos(pos)
5362 int pos;
5363 {
5364 struct cmdline_info *p = get_ccline_ptr();
5365
5366 if (p == NULL)
5367 return 1;
5368
5369 /* The position is not set directly but after CTRL-\ e or CTRL-R = has
5370 * changed the command line. */
5371 if (pos < 0)
5372 new_cmdpos = 0;
5373 else
5374 new_cmdpos = pos;
5375 return 0;
5376 }
5377
5378 /*
5379 * Get the current command-line type.
5380 * Returns ':' or '/' or '?' or '@' or '>' or '-'
5381 * Only works when the command line is being edited.
5382 * Returns NUL when something is wrong.
5383 */
5384 int
5385 get_cmdline_type()
5386 {
5387 struct cmdline_info *p = get_ccline_ptr();
5388
5389 if (p == NULL)
5390 return NUL;
5391 if (p->cmdfirstc == NUL)
5392 return (p->input_fn) ? '@' : '-';
5393 return p->cmdfirstc;
5394 }
5395
5396 /*
5397 * Calculate history index from a number:
5398 * num > 0: seen as identifying number of a history entry
5399 * num < 0: relative position in history wrt newest entry
5400 * "histype" may be one of the HIST_ values.
5401 */
5402 static int
5403 calc_hist_idx(histype, num)
5404 int histype;
5405 int num;
5406 {
5407 int i;
5408 histentry_T *hist;
5409 int wrapped = FALSE;
5410
5411 if (hislen == 0 || histype < 0 || histype >= HIST_COUNT
5412 || (i = hisidx[histype]) < 0 || num == 0)
5413 return -1;
5414
5415 hist = history[histype];
5416 if (num > 0)
5417 {
5418 while (hist[i].hisnum > num)
5419 if (--i < 0)
5420 {
5421 if (wrapped)
5422 break;
5423 i += hislen;
5424 wrapped = TRUE;
5425 }
5426 if (hist[i].hisnum == num && hist[i].hisstr != NULL)
5427 return i;
5428 }
5429 else if (-num <= hislen)
5430 {
5431 i += num + 1;
5432 if (i < 0)
5433 i += hislen;
5434 if (hist[i].hisstr != NULL)
5435 return i;
5436 }
5437 return -1;
5438 }
5439
5440 /*
5441 * Get a history entry by its index.
5442 * "histype" may be one of the HIST_ values.
5443 */
5444 char_u *
5445 get_history_entry(histype, idx)
5446 int histype;
5447 int idx;
5448 {
5449 idx = calc_hist_idx(histype, idx);
5450 if (idx >= 0)
5451 return history[histype][idx].hisstr;
5452 else
5453 return (char_u *)"";
5454 }
5455
5456 /*
5457 * Clear all entries of a history.
5458 * "histype" may be one of the HIST_ values.
5459 */
5460 int
5461 clr_history(histype)
5462 int histype;
5463 {
5464 int i;
5465 histentry_T *hisptr;
5466
5467 if (hislen != 0 && histype >= 0 && histype < HIST_COUNT)
5468 {
5469 hisptr = history[histype];
5470 for (i = hislen; i--;)
5471 {
5472 vim_free(hisptr->hisstr);
5473 hisptr->hisnum = 0;
5474 hisptr++->hisstr = NULL;
5475 }
5476 hisidx[histype] = -1; /* mark history as cleared */
5477 hisnum[histype] = 0; /* reset identifier counter */
5478 return OK;
5479 }
5480 return FAIL;
5481 }
5482
5483 /*
5484 * Remove all entries matching {str} from a history.
5485 * "histype" may be one of the HIST_ values.
5486 */
5487 int
5488 del_history_entry(histype, str)
5489 int histype;
5490 char_u *str;
5491 {
5492 regmatch_T regmatch;
5493 histentry_T *hisptr;
5494 int idx;
5495 int i;
5496 int last;
5497 int found = FALSE;
5498
5499 regmatch.regprog = NULL;
5500 regmatch.rm_ic = FALSE; /* always match case */
5501 if (hislen != 0
5502 && histype >= 0
5503 && histype < HIST_COUNT
5504 && *str != NUL
5505 && (idx = hisidx[histype]) >= 0
5506 && (regmatch.regprog = vim_regcomp(str, RE_MAGIC + RE_STRING))
5507 != NULL)
5508 {
5509 i = last = idx;
5510 do
5511 {
5512 hisptr = &history[histype][i];
5513 if (hisptr->hisstr == NULL)
5514 break;
5515 if (vim_regexec(&regmatch, hisptr->hisstr, (colnr_T)0))
5516 {
5517 found = TRUE;
5518 vim_free(hisptr->hisstr);
5519 hisptr->hisstr = NULL;
5520 hisptr->hisnum = 0;
5521 }
5522 else
5523 {
5524 if (i != last)
5525 {
5526 history[histype][last] = *hisptr;
5527 hisptr->hisstr = NULL;
5528 hisptr->hisnum = 0;
5529 }
5530 if (--last < 0)
5531 last += hislen;
5532 }
5533 if (--i < 0)
5534 i += hislen;
5535 } while (i != idx);
5536 if (history[histype][idx].hisstr == NULL)
5537 hisidx[histype] = -1;
5538 }
5539 vim_free(regmatch.regprog);
5540 return found;
5541 }
5542
5543 /*
5544 * Remove an indexed entry from a history.
5545 * "histype" may be one of the HIST_ values.
5546 */
5547 int
5548 del_history_idx(histype, idx)
5549 int histype;
5550 int idx;
5551 {
5552 int i, j;
5553
5554 i = calc_hist_idx(histype, idx);
5555 if (i < 0)
5556 return FALSE;
5557 idx = hisidx[histype];
5558 vim_free(history[histype][i].hisstr);
5559
5560 /* When deleting the last added search string in a mapping, reset
5561 * last_maptick, so that the last added search string isn't deleted again.
5562 */
5563 if (histype == HIST_SEARCH && maptick == last_maptick && i == idx)
5564 last_maptick = -1;
5565
5566 while (i != idx)
5567 {
5568 j = (i + 1) % hislen;
5569 history[histype][i] = history[histype][j];
5570 i = j;
5571 }
5572 history[histype][i].hisstr = NULL;
5573 history[histype][i].hisnum = 0;
5574 if (--i < 0)
5575 i += hislen;
5576 hisidx[histype] = i;
5577 return TRUE;
5578 }
5579
5580 #endif /* FEAT_EVAL */
5581
5582 #if defined(FEAT_CRYPT) || defined(PROTO)
5583 /*
5584 * Very specific function to remove the value in ":set key=val" from the
5585 * history.
5586 */
5587 void
5588 remove_key_from_history()
5589 {
5590 char_u *p;
5591 int i;
5592
5593 i = hisidx[HIST_CMD];
5594 if (i < 0)
5595 return;
5596 p = history[HIST_CMD][i].hisstr;
5597 if (p != NULL)
5598 for ( ; *p; ++p)
5599 if (STRNCMP(p, "key", 3) == 0 && !isalpha(p[3]))
5600 {
5601 p = vim_strchr(p + 3, '=');
5602 if (p == NULL)
5603 break;
5604 ++p;
5605 for (i = 0; p[i] && !vim_iswhite(p[i]); ++i)
5606 if (p[i] == '\\' && p[i + 1])
5607 ++i;
5608 STRMOVE(p, p + i);
5609 --p;
5610 }
5611 }
5612 #endif
5613
5614 #endif /* FEAT_CMDHIST */
5615
5616 #if defined(FEAT_QUICKFIX) || defined(FEAT_CMDHIST) || defined(PROTO)
5617 /*
5618 * Get indices "num1,num2" that specify a range within a list (not a range of
5619 * text lines in a buffer!) from a string. Used for ":history" and ":clist".
5620 * Returns OK if parsed successfully, otherwise FAIL.
5621 */
5622 int
5623 get_list_range(str, num1, num2)
5624 char_u **str;
5625 int *num1;
5626 int *num2;
5627 {
5628 int len;
5629 int first = FALSE;
5630 long num;
5631
5632 *str = skipwhite(*str);
5633 if (**str == '-' || vim_isdigit(**str)) /* parse "from" part of range */
5634 {
5635 vim_str2nr(*str, NULL, &len, FALSE, FALSE, &num, NULL);
5636 *str += len;
5637 *num1 = (int)num;
5638 first = TRUE;
5639 }
5640 *str = skipwhite(*str);
5641 if (**str == ',') /* parse "to" part of range */
5642 {
5643 *str = skipwhite(*str + 1);
5644 vim_str2nr(*str, NULL, &len, FALSE, FALSE, &num, NULL);
5645 if (len > 0)
5646 {
5647 *num2 = (int)num;
5648 *str = skipwhite(*str + len);
5649 }
5650 else if (!first) /* no number given at all */
5651 return FAIL;
5652 }
5653 else if (first) /* only one number given */
5654 *num2 = *num1;
5655 return OK;
5656 }
5657 #endif
5658
5659 #if defined(FEAT_CMDHIST) || defined(PROTO)
5660 /*
5661 * :history command - print a history
5662 */
5663 void
5664 ex_history(eap)
5665 exarg_T *eap;
5666 {
5667 histentry_T *hist;
5668 int histype1 = HIST_CMD;
5669 int histype2 = HIST_CMD;
5670 int hisidx1 = 1;
5671 int hisidx2 = -1;
5672 int idx;
5673 int i, j, k;
5674 char_u *end;
5675 char_u *arg = eap->arg;
5676
5677 if (hislen == 0)
5678 {
5679 MSG(_("'history' option is zero"));
5680 return;
5681 }
5682
5683 if (!(VIM_ISDIGIT(*arg) || *arg == '-' || *arg == ','))
5684 {
5685 end = arg;
5686 while (ASCII_ISALPHA(*end)
5687 || vim_strchr((char_u *)":=@>/?", *end) != NULL)
5688 end++;
5689 i = *end;
5690 *end = NUL;
5691 histype1 = get_histtype(arg);
5692 if (histype1 == -1)
5693 {
5694 if (STRNICMP(arg, "all", STRLEN(arg)) == 0)
5695 {
5696 histype1 = 0;
5697 histype2 = HIST_COUNT-1;
5698 }
5699 else
5700 {
5701 *end = i;
5702 EMSG(_(e_trailing));
5703 return;
5704 }
5705 }
5706 else
5707 histype2 = histype1;
5708 *end = i;
5709 }
5710 else
5711 end = arg;
5712 if (!get_list_range(&end, &hisidx1, &hisidx2) || *end != NUL)
5713 {
5714 EMSG(_(e_trailing));
5715 return;
5716 }
5717
5718 for (; !got_int && histype1 <= histype2; ++histype1)
5719 {
5720 STRCPY(IObuff, "\n # ");
5721 STRCAT(STRCAT(IObuff, history_names[histype1]), " history");
5722 MSG_PUTS_TITLE(IObuff);
5723 idx = hisidx[histype1];
5724 hist = history[histype1];
5725 j = hisidx1;
5726 k = hisidx2;
5727 if (j < 0)
5728 j = (-j > hislen) ? 0 : hist[(hislen+j+idx+1) % hislen].hisnum;
5729 if (k < 0)
5730 k = (-k > hislen) ? 0 : hist[(hislen+k+idx+1) % hislen].hisnum;
5731 if (idx >= 0 && j <= k)
5732 for (i = idx + 1; !got_int; ++i)
5733 {
5734 if (i == hislen)
5735 i = 0;
5736 if (hist[i].hisstr != NULL
5737 && hist[i].hisnum >= j && hist[i].hisnum <= k)
5738 {
5739 msg_putchar('\n');
5740 sprintf((char *)IObuff, "%c%6d ", i == idx ? '>' : ' ',
5741 hist[i].hisnum);
5742 if (vim_strsize(hist[i].hisstr) > (int)Columns - 10)
5743 trunc_string(hist[i].hisstr, IObuff + STRLEN(IObuff),
5744 (int)Columns - 10);
5745 else
5746 STRCAT(IObuff, hist[i].hisstr);
5747 msg_outtrans(IObuff);
5748 out_flush();
5749 }
5750 if (i == idx)
5751 break;
5752 }
5753 }
5754 }
5755 #endif
5756
5757 #if (defined(FEAT_VIMINFO) && defined(FEAT_CMDHIST)) || defined(PROTO)
5758 static char_u **viminfo_history[HIST_COUNT] = {NULL, NULL, NULL, NULL};
5759 static int viminfo_hisidx[HIST_COUNT] = {0, 0, 0, 0};
5760 static int viminfo_hislen[HIST_COUNT] = {0, 0, 0, 0};
5761 static int viminfo_add_at_front = FALSE;
5762
5763 static int hist_type2char __ARGS((int type, int use_question));
5764
5765 /*
5766 * Translate a history type number to the associated character.
5767 */
5768 static int
5769 hist_type2char(type, use_question)
5770 int type;
5771 int use_question; /* use '?' instead of '/' */
5772 {
5773 if (type == HIST_CMD)
5774 return ':';
5775 if (type == HIST_SEARCH)
5776 {
5777 if (use_question)
5778 return '?';
5779 else
5780 return '/';
5781 }
5782 if (type == HIST_EXPR)
5783 return '=';
5784 return '@';
5785 }
5786
5787 /*
5788 * Prepare for reading the history from the viminfo file.
5789 * This allocates history arrays to store the read history lines.
5790 */
5791 void
5792 prepare_viminfo_history(asklen)
5793 int asklen;
5794 {
5795 int i;
5796 int num;
5797 int type;
5798 int len;
5799
5800 init_history();
5801 viminfo_add_at_front = (asklen != 0);
5802 if (asklen > hislen)
5803 asklen = hislen;
5804
5805 for (type = 0; type < HIST_COUNT; ++type)
5806 {
5807 /*
5808 * Count the number of empty spaces in the history list. If there are
5809 * more spaces available than we request, then fill them up.
5810 */
5811 for (i = 0, num = 0; i < hislen; i++)
5812 if (history[type][i].hisstr == NULL)
5813 num++;
5814 len = asklen;
5815 if (num > len)
5816 len = num;
5817 if (len <= 0)
5818 viminfo_history[type] = NULL;
5819 else
5820 viminfo_history[type] =
5821 (char_u **)lalloc((long_u)(len * sizeof(char_u *)), FALSE);
5822 if (viminfo_history[type] == NULL)
5823 len = 0;
5824 viminfo_hislen[type] = len;
5825 viminfo_hisidx[type] = 0;
5826 }
5827 }
5828
5829 /*
5830 * Accept a line from the viminfo, store it in the history array when it's
5831 * new.
5832 */
5833 int
5834 read_viminfo_history(virp)
5835 vir_T *virp;
5836 {
5837 int type;
5838 long_u len;
5839 char_u *val;
5840 char_u *p;
5841
5842 type = hist_char2type(virp->vir_line[0]);
5843 if (viminfo_hisidx[type] < viminfo_hislen[type])
5844 {
5845 val = viminfo_readstring(virp, 1, TRUE);
5846 if (val != NULL && *val != NUL)
5847 {
5848 if (!in_history(type, val + (type == HIST_SEARCH),
5849 viminfo_add_at_front))
5850 {
5851 /* Need to re-allocate to append the separator byte. */
5852 len = STRLEN(val);
5853 p = lalloc(len + 2, TRUE);
5854 if (p != NULL)
5855 {
5856 if (type == HIST_SEARCH)
5857 {
5858 /* Search entry: Move the separator from the first
5859 * column to after the NUL. */
5860 mch_memmove(p, val + 1, (size_t)len);
5861 p[len] = (*val == ' ' ? NUL : *val);
5862 }
5863 else
5864 {
5865 /* Not a search entry: No separator in the viminfo
5866 * file, add a NUL separator. */
5867 mch_memmove(p, val, (size_t)len + 1);
5868 p[len + 1] = NUL;
5869 }
5870 viminfo_history[type][viminfo_hisidx[type]++] = p;
5871 }
5872 }
5873 }
5874 vim_free(val);
5875 }
5876 return viminfo_readline(virp);
5877 }
5878
5879 void
5880 finish_viminfo_history()
5881 {
5882 int idx;
5883 int i;
5884 int type;
5885
5886 for (type = 0; type < HIST_COUNT; ++type)
5887 {
5888 if (history[type] == NULL)
5889 return;
5890 idx = hisidx[type] + viminfo_hisidx[type];
5891 if (idx >= hislen)
5892 idx -= hislen;
5893 else if (idx < 0)
5894 idx = hislen - 1;
5895 if (viminfo_add_at_front)
5896 hisidx[type] = idx;
5897 else
5898 {
5899 if (hisidx[type] == -1)
5900 hisidx[type] = hislen - 1;
5901 do
5902 {
5903 if (history[type][idx].hisstr != NULL)
5904 break;
5905 if (++idx == hislen)
5906 idx = 0;
5907 } while (idx != hisidx[type]);
5908 if (idx != hisidx[type] && --idx < 0)
5909 idx = hislen - 1;
5910 }
5911 for (i = 0; i < viminfo_hisidx[type]; i++)
5912 {
5913 vim_free(history[type][idx].hisstr);
5914 history[type][idx].hisstr = viminfo_history[type][i];
5915 if (--idx < 0)
5916 idx = hislen - 1;
5917 }
5918 idx += 1;
5919 idx %= hislen;
5920 for (i = 0; i < viminfo_hisidx[type]; i++)
5921 {
5922 history[type][idx++].hisnum = ++hisnum[type];
5923 idx %= hislen;
5924 }
5925 vim_free(viminfo_history[type]);
5926 viminfo_history[type] = NULL;
5927 }
5928 }
5929
5930 void
5931 write_viminfo_history(fp)
5932 FILE *fp;
5933 {
5934 int i;
5935 int type;
5936 int num_saved;
5937 char_u *p;
5938 int c;
5939
5940 init_history();
5941 if (hislen == 0)
5942 return;
5943 for (type = 0; type < HIST_COUNT; ++type)
5944 {
5945 num_saved = get_viminfo_parameter(hist_type2char(type, FALSE));
5946 if (num_saved == 0)
5947 continue;
5948 if (num_saved < 0) /* Use default */
5949 num_saved = hislen;
5950 fprintf(fp, _("\n# %s History (newest to oldest):\n"),
5951 type == HIST_CMD ? _("Command Line") :
5952 type == HIST_SEARCH ? _("Search String") :
5953 type == HIST_EXPR ? _("Expression") :
5954 _("Input Line"));
5955 if (num_saved > hislen)
5956 num_saved = hislen;
5957 i = hisidx[type];
5958 if (i >= 0)
5959 while (num_saved--)
5960 {
5961 p = history[type][i].hisstr;
5962 if (p != NULL)
5963 {
5964 fputc(hist_type2char(type, TRUE), fp);
5965 /* For the search history: put the separator in the second
5966 * column; use a space if there isn't one. */
5967 if (type == HIST_SEARCH)
5968 {
5969 c = p[STRLEN(p) + 1];
5970 putc(c == NUL ? ' ' : c, fp);
5971 }
5972 viminfo_writestring(fp, p);
5973 }
5974 if (--i < 0)
5975 i = hislen - 1;
5976 }
5977 }
5978 }
5979 #endif /* FEAT_VIMINFO */
5980
5981 #if defined(FEAT_FKMAP) || defined(PROTO)
5982 /*
5983 * Write a character at the current cursor+offset position.
5984 * It is directly written into the command buffer block.
5985 */
5986 void
5987 cmd_pchar(c, offset)
5988 int c, offset;
5989 {
5990 if (ccline.cmdpos + offset >= ccline.cmdlen || ccline.cmdpos + offset < 0)
5991 {
5992 EMSG(_("E198: cmd_pchar beyond the command length"));
5993 return;
5994 }
5995 ccline.cmdbuff[ccline.cmdpos + offset] = (char_u)c;
5996 ccline.cmdbuff[ccline.cmdlen] = NUL;
5997 }
5998
5999 int
6000 cmd_gchar(offset)
6001 int offset;
6002 {
6003 if (ccline.cmdpos + offset >= ccline.cmdlen || ccline.cmdpos + offset < 0)
6004 {
6005 /* EMSG(_("cmd_gchar beyond the command length")); */
6006 return NUL;
6007 }
6008 return (int)ccline.cmdbuff[ccline.cmdpos + offset];
6009 }
6010 #endif
6011
6012 #if defined(FEAT_CMDWIN) || defined(PROTO)
6013 /*
6014 * Open a window on the current command line and history. Allow editing in
6015 * the window. Returns when the window is closed.
6016 * Returns:
6017 * CR if the command is to be executed
6018 * Ctrl_C if it is to be abandoned
6019 * K_IGNORE if editing continues
6020 */
6021 static int
6022 ex_window()
6023 {
6024 struct cmdline_info save_ccline;
6025 buf_T *old_curbuf = curbuf;
6026 win_T *old_curwin = curwin;
6027 buf_T *bp;
6028 win_T *wp;
6029 int i;
6030 linenr_T lnum;
6031 int histtype;
6032 garray_T winsizes;
6033 #ifdef FEAT_AUTOCMD
6034 char_u typestr[2];
6035 #endif
6036 int save_restart_edit = restart_edit;
6037 int save_State = State;
6038 int save_exmode = exmode_active;
6039 #ifdef FEAT_RIGHTLEFT
6040 int save_cmdmsg_rl = cmdmsg_rl;
6041 #endif
6042
6043 /* Can't do this recursively. Can't do it when typing a password. */
6044 if (cmdwin_type != 0
6045 # if defined(FEAT_CRYPT) || defined(FEAT_EVAL)
6046 || cmdline_star > 0
6047 # endif
6048 )
6049 {
6050 beep_flush();
6051 return K_IGNORE;
6052 }
6053
6054 /* Save current window sizes. */
6055 win_size_save(&winsizes);
6056
6057 # ifdef FEAT_AUTOCMD
6058 /* Don't execute autocommands while creating the window. */
6059 block_autocmds();
6060 # endif
6061 /* don't use a new tab page */
6062 cmdmod.tab = 0;
6063
6064 /* Create a window for the command-line buffer. */
6065 if (win_split((int)p_cwh, WSP_BOT) == FAIL)
6066 {
6067 beep_flush();
6068 # ifdef FEAT_AUTOCMD
6069 unblock_autocmds();
6070 # endif
6071 return K_IGNORE;
6072 }
6073 cmdwin_type = get_cmdline_type();
6074
6075 /* Create the command-line buffer empty. */
6076 (void)do_ecmd(0, NULL, NULL, NULL, ECMD_ONE, ECMD_HIDE, NULL);
6077 (void)setfname(curbuf, (char_u *)"[Command Line]", NULL, TRUE);
6078 set_option_value((char_u *)"bt", 0L, (char_u *)"nofile", OPT_LOCAL);
6079 set_option_value((char_u *)"swf", 0L, NULL, OPT_LOCAL);
6080 curbuf->b_p_ma = TRUE;
6081 #ifdef FEAT_FOLDING
6082 curwin->w_p_fen = FALSE;
6083 #endif
6084 # ifdef FEAT_RIGHTLEFT
6085 curwin->w_p_rl = cmdmsg_rl;
6086 cmdmsg_rl = FALSE;
6087 # endif
6088 # ifdef FEAT_SCROLLBIND
6089 curwin->w_p_scb = FALSE;
6090 # endif
6091
6092 # ifdef FEAT_AUTOCMD
6093 /* Do execute autocommands for setting the filetype (load syntax). */
6094 unblock_autocmds();
6095 # endif
6096
6097 /* Showing the prompt may have set need_wait_return, reset it. */
6098 need_wait_return = FALSE;
6099
6100 histtype = hist_char2type(cmdwin_type);
6101 if (histtype == HIST_CMD || histtype == HIST_DEBUG)
6102 {
6103 if (p_wc == TAB)
6104 {
6105 add_map((char_u *)"<buffer> <Tab> <C-X><C-V>", INSERT);
6106 add_map((char_u *)"<buffer> <Tab> a<C-X><C-V>", NORMAL);
6107 }
6108 set_option_value((char_u *)"ft", 0L, (char_u *)"vim", OPT_LOCAL);
6109 }
6110
6111 /* Reset 'textwidth' after setting 'filetype' (the Vim filetype plugin
6112 * sets 'textwidth' to 78). */
6113 curbuf->b_p_tw = 0;
6114
6115 /* Fill the buffer with the history. */
6116 init_history();
6117 if (hislen > 0)
6118 {
6119 i = hisidx[histtype];
6120 if (i >= 0)
6121 {
6122 lnum = 0;
6123 do
6124 {
6125 if (++i == hislen)
6126 i = 0;
6127 if (history[histtype][i].hisstr != NULL)
6128 ml_append(lnum++, history[histtype][i].hisstr,
6129 (colnr_T)0, FALSE);
6130 }
6131 while (i != hisidx[histtype]);
6132 }
6133 }
6134
6135 /* Replace the empty last line with the current command-line and put the
6136 * cursor there. */
6137 ml_replace(curbuf->b_ml.ml_line_count, ccline.cmdbuff, TRUE);
6138 curwin->w_cursor.lnum = curbuf->b_ml.ml_line_count;
6139 curwin->w_cursor.col = ccline.cmdpos;
6140 changed_line_abv_curs();
6141 invalidate_botline();
6142 redraw_later(SOME_VALID);
6143
6144 /* Save the command line info, can be used recursively. */
6145 save_ccline = ccline;
6146 ccline.cmdbuff = NULL;
6147 ccline.cmdprompt = NULL;
6148
6149 /* No Ex mode here! */
6150 exmode_active = 0;
6151
6152 State = NORMAL;
6153 # ifdef FEAT_MOUSE
6154 setmouse();
6155 # endif
6156
6157 # ifdef FEAT_AUTOCMD
6158 /* Trigger CmdwinEnter autocommands. */
6159 typestr[0] = cmdwin_type;
6160 typestr[1] = NUL;
6161 apply_autocmds(EVENT_CMDWINENTER, typestr, typestr, FALSE, curbuf);
6162 if (restart_edit != 0) /* autocmd with ":startinsert" */
6163 stuffcharReadbuff(K_NOP);
6164 # endif
6165
6166 i = RedrawingDisabled;
6167 RedrawingDisabled = 0;
6168
6169 /*
6170 * Call the main loop until <CR> or CTRL-C is typed.
6171 */
6172 cmdwin_result = 0;
6173 main_loop(TRUE, FALSE);
6174
6175 RedrawingDisabled = i;
6176
6177 # ifdef FEAT_AUTOCMD
6178 /* Trigger CmdwinLeave autocommands. */
6179 apply_autocmds(EVENT_CMDWINLEAVE, typestr, typestr, FALSE, curbuf);
6180 # endif
6181
6182 /* Restore the command line info. */
6183 ccline = save_ccline;
6184 cmdwin_type = 0;
6185
6186 exmode_active = save_exmode;
6187
6188 /* Safety check: The old window or buffer was deleted: It's a bug when
6189 * this happens! */
6190 if (!win_valid(old_curwin) || !buf_valid(old_curbuf))
6191 {
6192 cmdwin_result = Ctrl_C;
6193 EMSG(_("E199: Active window or buffer deleted"));
6194 }
6195 else
6196 {
6197 # if defined(FEAT_AUTOCMD) && defined(FEAT_EVAL)
6198 /* autocmds may abort script processing */
6199 if (aborting() && cmdwin_result != K_IGNORE)
6200 cmdwin_result = Ctrl_C;
6201 # endif
6202 /* Set the new command line from the cmdline buffer. */
6203 vim_free(ccline.cmdbuff);
6204 if (cmdwin_result == K_XF1 || cmdwin_result == K_XF2) /* :qa[!] typed */
6205 {
6206 char *p = (cmdwin_result == K_XF2) ? "qa" : "qa!";
6207
6208 if (histtype == HIST_CMD)
6209 {
6210 /* Execute the command directly. */
6211 ccline.cmdbuff = vim_strsave((char_u *)p);
6212 cmdwin_result = CAR;
6213 }
6214 else
6215 {
6216 /* First need to cancel what we were doing. */
6217 ccline.cmdbuff = NULL;
6218 stuffcharReadbuff(':');
6219 stuffReadbuff((char_u *)p);
6220 stuffcharReadbuff(CAR);
6221 }
6222 }
6223 else if (cmdwin_result == K_XF2) /* :qa typed */
6224 {
6225 ccline.cmdbuff = vim_strsave((char_u *)"qa");
6226 cmdwin_result = CAR;
6227 }
6228 else
6229 ccline.cmdbuff = vim_strsave(ml_get_curline());
6230 if (ccline.cmdbuff == NULL)
6231 cmdwin_result = Ctrl_C;
6232 else
6233 {
6234 ccline.cmdlen = (int)STRLEN(ccline.cmdbuff);
6235 ccline.cmdbufflen = ccline.cmdlen + 1;
6236 ccline.cmdpos = curwin->w_cursor.col;
6237 if (ccline.cmdpos > ccline.cmdlen)
6238 ccline.cmdpos = ccline.cmdlen;
6239 if (cmdwin_result == K_IGNORE)
6240 {
6241 set_cmdspos_cursor();
6242 redrawcmd();
6243 }
6244 }
6245
6246 # ifdef FEAT_AUTOCMD
6247 /* Don't execute autocommands while deleting the window. */
6248 block_autocmds();
6249 # endif
6250 wp = curwin;
6251 bp = curbuf;
6252 win_goto(old_curwin);
6253 win_close(wp, TRUE);
6254 close_buffer(NULL, bp, DOBUF_WIPE);
6255
6256 /* Restore window sizes. */
6257 win_size_restore(&winsizes);
6258
6259 # ifdef FEAT_AUTOCMD
6260 unblock_autocmds();
6261 # endif
6262 }
6263
6264 ga_clear(&winsizes);
6265 restart_edit = save_restart_edit;
6266 # ifdef FEAT_RIGHTLEFT
6267 cmdmsg_rl = save_cmdmsg_rl;
6268 # endif
6269
6270 State = save_State;
6271 # ifdef FEAT_MOUSE
6272 setmouse();
6273 # endif
6274
6275 return cmdwin_result;
6276 }
6277 #endif /* FEAT_CMDWIN */
6278
6279 /*
6280 * Used for commands that either take a simple command string argument, or:
6281 * cmd << endmarker
6282 * {script}
6283 * endmarker
6284 * Returns a pointer to allocated memory with {script} or NULL.
6285 */
6286 char_u *
6287 script_get(eap, cmd)
6288 exarg_T *eap;
6289 char_u *cmd;
6290 {
6291 char_u *theline;
6292 char *end_pattern = NULL;
6293 char dot[] = ".";
6294 garray_T ga;
6295
6296 if (cmd[0] != '<' || cmd[1] != '<' || eap->getline == NULL)
6297 return NULL;
6298
6299 ga_init2(&ga, 1, 0x400);
6300
6301 if (cmd[2] != NUL)
6302 end_pattern = (char *)skipwhite(cmd + 2);
6303 else
6304 end_pattern = dot;
6305
6306 for (;;)
6307 {
6308 theline = eap->getline(
6309 #ifdef FEAT_EVAL
6310 eap->cstack->cs_looplevel > 0 ? -1 :
6311 #endif
6312 NUL, eap->cookie, 0);
6313
6314 if (theline == NULL || STRCMP(end_pattern, theline) == 0)
6315 {
6316 vim_free(theline);
6317 break;
6318 }
6319
6320 ga_concat(&ga, theline);
6321 ga_append(&ga, '\n');
6322 vim_free(theline);
6323 }
6324 ga_append(&ga, NUL);
6325
6326 return (char_u *)ga.ga_data;
6327 }
Vim for the Mac