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Merged from the latest developing branch.
[MacVim.git] / src / ex_getln.c
blobc9d8c3053a77b4e2a709ad9e52b22ba633e96229
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)
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(PROTO)
2394 /*
2395 * Return the virtual column number at the current cursor position.
2396 * This is used by the IM code to obtain the start of the preedit string.
2397 */
2398 colnr_T
2399 cmdline_getvcol_cursor()
2400 {
2401 if (ccline.cmdbuff == NULL || ccline.cmdpos > ccline.cmdlen)
2402 return MAXCOL;
2403
2404 # ifdef FEAT_MBYTE
2405 if (has_mbyte)
2406 {
2407 colnr_T col;
2408 int i = 0;
2409
2410 for (col = 0; i < ccline.cmdpos; ++col)
2411 i += (*mb_ptr2len)(ccline.cmdbuff + i);
2412
2413 return col;
2414 }
2415 else
2416 # endif
2417 return ccline.cmdpos;
2418 }
2419 #endif
2420
2421 #if defined(FEAT_XIM) && defined(FEAT_GUI_GTK)
2422 /*
2423 * If part of the command line is an IM preedit string, redraw it with
2424 * IM feedback attributes. The cursor position is restored after drawing.
2425 */
2426 static void
2427 redrawcmd_preedit()
2428 {
2429 if ((State & CMDLINE)
2430 && xic != NULL
2431 /* && im_get_status() doesn't work when using SCIM */
2432 && !p_imdisable
2433 && im_is_preediting())
2434 {
2435 int cmdpos = 0;
2436 int cmdspos;
2437 int old_row;
2438 int old_col;
2439 colnr_T col;
2440
2441 old_row = msg_row;
2442 old_col = msg_col;
2443 cmdspos = ((ccline.cmdfirstc != NUL) ? 1 : 0) + ccline.cmdindent;
2444
2445 # ifdef FEAT_MBYTE
2446 if (has_mbyte)
2447 {
2448 for (col = 0; col < preedit_start_col
2449 && cmdpos < ccline.cmdlen; ++col)
2450 {
2451 cmdspos += (*mb_ptr2cells)(ccline.cmdbuff + cmdpos);
2452 cmdpos += (*mb_ptr2len)(ccline.cmdbuff + cmdpos);
2453 }
2454 }
2455 else
2456 # endif
2457 {
2458 cmdspos += preedit_start_col;
2459 cmdpos += preedit_start_col;
2460 }
2461
2462 msg_row = cmdline_row + (cmdspos / (int)Columns);
2463 msg_col = cmdspos % (int)Columns;
2464 if (msg_row >= Rows)
2465 msg_row = Rows - 1;
2466
2467 for (col = 0; cmdpos < ccline.cmdlen; ++col)
2468 {
2469 int char_len;
2470 int char_attr;
2471
2472 char_attr = im_get_feedback_attr(col);
2473 if (char_attr < 0)
2474 break; /* end of preedit string */
2475
2476 # ifdef FEAT_MBYTE
2477 if (has_mbyte)
2478 char_len = (*mb_ptr2len)(ccline.cmdbuff + cmdpos);
2479 else
2480 # endif
2481 char_len = 1;
2482
2483 msg_outtrans_len_attr(ccline.cmdbuff + cmdpos, char_len, char_attr);
2484 cmdpos += char_len;
2485 }
2486
2487 msg_row = old_row;
2488 msg_col = old_col;
2489 }
2490 }
2491 #endif /* FEAT_XIM && FEAT_GUI_GTK */
2492
2493 /*
2494 * Allocate a new command line buffer.
2495 * Assigns the new buffer to ccline.cmdbuff and ccline.cmdbufflen.
2496 * Returns the new value of ccline.cmdbuff and ccline.cmdbufflen.
2497 */
2498 static void
2499 alloc_cmdbuff(len)
2500 int len;
2501 {
2502 /*
2503 * give some extra space to avoid having to allocate all the time
2504 */
2505 if (len < 80)
2506 len = 100;
2507 else
2508 len += 20;
2509
2510 ccline.cmdbuff = alloc(len); /* caller should check for out-of-memory */
2511 ccline.cmdbufflen = len;
2512 }
2513
2514 /*
2515 * Re-allocate the command line to length len + something extra.
2516 * return FAIL for failure, OK otherwise
2517 */
2518 static int
2519 realloc_cmdbuff(len)
2520 int len;
2521 {
2522 char_u *p;
2523
2524 p = ccline.cmdbuff;
2525 alloc_cmdbuff(len); /* will get some more */
2526 if (ccline.cmdbuff == NULL) /* out of memory */
2527 {
2528 ccline.cmdbuff = p; /* keep the old one */
2529 return FAIL;
2530 }
2531 mch_memmove(ccline.cmdbuff, p, (size_t)ccline.cmdlen + 1);
2532 vim_free(p);
2533
2534 if (ccline.xpc != NULL
2535 && ccline.xpc->xp_pattern != NULL
2536 && ccline.xpc->xp_context != EXPAND_NOTHING
2537 && ccline.xpc->xp_context != EXPAND_UNSUCCESSFUL)
2538 {
2539 int i = (int)(ccline.xpc->xp_pattern - p);
2540
2541 /* If xp_pattern points inside the old cmdbuff it needs to be adjusted
2542 * to point into the newly allocated memory. */
2543 if (i >= 0 && i <= ccline.cmdlen)
2544 ccline.xpc->xp_pattern = ccline.cmdbuff + i;
2545 }
2546
2547 return OK;
2548 }
2549
2550 #if defined(FEAT_ARABIC) || defined(PROTO)
2551 static char_u *arshape_buf = NULL;
2552
2553 # if defined(EXITFREE) || defined(PROTO)
2554 void
2555 free_cmdline_buf()
2556 {
2557 vim_free(arshape_buf);
2558 }
2559 # endif
2560 #endif
2561
2562 /*
2563 * Draw part of the cmdline at the current cursor position. But draw stars
2564 * when cmdline_star is TRUE.
2565 */
2566 static void
2567 draw_cmdline(start, len)
2568 int start;
2569 int len;
2570 {
2571 #if defined(FEAT_CRYPT) || defined(FEAT_EVAL)
2572 int i;
2573
2574 if (cmdline_star > 0)
2575 for (i = 0; i < len; ++i)
2576 {
2577 msg_putchar('*');
2578 # ifdef FEAT_MBYTE
2579 if (has_mbyte)
2580 i += (*mb_ptr2len)(ccline.cmdbuff + start + i) - 1;
2581 # endif
2582 }
2583 else
2584 #endif
2585 #ifdef FEAT_ARABIC
2586 if (p_arshape && !p_tbidi && enc_utf8 && len > 0)
2587 {
2588 static int buflen = 0;
2589 char_u *p;
2590 int j;
2591 int newlen = 0;
2592 int mb_l;
2593 int pc, pc1 = 0;
2594 int prev_c = 0;
2595 int prev_c1 = 0;
2596 int u8c;
2597 int u8cc[MAX_MCO];
2598 int nc = 0;
2599
2600 /*
2601 * Do arabic shaping into a temporary buffer. This is very
2602 * inefficient!
2603 */
2604 if (len * 2 + 2 > buflen)
2605 {
2606 /* Re-allocate the buffer. We keep it around to avoid a lot of
2607 * alloc()/free() calls. */
2608 vim_free(arshape_buf);
2609 buflen = len * 2 + 2;
2610 arshape_buf = alloc(buflen);
2611 if (arshape_buf == NULL)
2612 return; /* out of memory */
2613 }
2614
2615 if (utf_iscomposing(utf_ptr2char(ccline.cmdbuff + start)))
2616 {
2617 /* Prepend a space to draw the leading composing char on. */
2618 arshape_buf[0] = ' ';
2619 newlen = 1;
2620 }
2621
2622 for (j = start; j < start + len; j += mb_l)
2623 {
2624 p = ccline.cmdbuff + j;
2625 u8c = utfc_ptr2char_len(p, u8cc, start + len - j);
2626 mb_l = utfc_ptr2len_len(p, start + len - j);
2627 if (ARABIC_CHAR(u8c))
2628 {
2629 /* Do Arabic shaping. */
2630 if (cmdmsg_rl)
2631 {
2632 /* displaying from right to left */
2633 pc = prev_c;
2634 pc1 = prev_c1;
2635 prev_c1 = u8cc[0];
2636 if (j + mb_l >= start + len)
2637 nc = NUL;
2638 else
2639 nc = utf_ptr2char(p + mb_l);
2640 }
2641 else
2642 {
2643 /* displaying from left to right */
2644 if (j + mb_l >= start + len)
2645 pc = NUL;
2646 else
2647 {
2648 int pcc[MAX_MCO];
2649
2650 pc = utfc_ptr2char_len(p + mb_l, pcc,
2651 start + len - j - mb_l);
2652 pc1 = pcc[0];
2653 }
2654 nc = prev_c;
2655 }
2656 prev_c = u8c;
2657
2658 u8c = arabic_shape(u8c, NULL, &u8cc[0], pc, pc1, nc);
2659
2660 newlen += (*mb_char2bytes)(u8c, arshape_buf + newlen);
2661 if (u8cc[0] != 0)
2662 {
2663 newlen += (*mb_char2bytes)(u8cc[0], arshape_buf + newlen);
2664 if (u8cc[1] != 0)
2665 newlen += (*mb_char2bytes)(u8cc[1],
2666 arshape_buf + newlen);
2667 }
2668 }
2669 else
2670 {
2671 prev_c = u8c;
2672 mch_memmove(arshape_buf + newlen, p, mb_l);
2673 newlen += mb_l;
2674 }
2675 }
2676
2677 msg_outtrans_len(arshape_buf, newlen);
2678 }
2679 else
2680 #endif
2681 msg_outtrans_len(ccline.cmdbuff + start, len);
2682 }
2683
2684 /*
2685 * Put a character on the command line. Shifts the following text to the
2686 * right when "shift" is TRUE. Used for CTRL-V, CTRL-K, etc.
2687 * "c" must be printable (fit in one display cell)!
2688 */
2689 void
2690 putcmdline(c, shift)
2691 int c;
2692 int shift;
2693 {
2694 if (cmd_silent)
2695 return;
2696 msg_no_more = TRUE;
2697 msg_putchar(c);
2698 if (shift)
2699 draw_cmdline(ccline.cmdpos, ccline.cmdlen - ccline.cmdpos);
2700 msg_no_more = FALSE;
2701 cursorcmd();
2702 }
2703
2704 /*
2705 * Undo a putcmdline(c, FALSE).
2706 */
2707 void
2708 unputcmdline()
2709 {
2710 if (cmd_silent)
2711 return;
2712 msg_no_more = TRUE;
2713 if (ccline.cmdlen == ccline.cmdpos)
2714 msg_putchar(' ');
2715 else
2716 draw_cmdline(ccline.cmdpos, 1);
2717 msg_no_more = FALSE;
2718 cursorcmd();
2719 }
2720
2721 /*
2722 * Put the given string, of the given length, onto the command line.
2723 * If len is -1, then STRLEN() is used to calculate the length.
2724 * If 'redraw' is TRUE then the new part of the command line, and the remaining
2725 * part will be redrawn, otherwise it will not. If this function is called
2726 * twice in a row, then 'redraw' should be FALSE and redrawcmd() should be
2727 * called afterwards.
2728 */
2729 int
2730 put_on_cmdline(str, len, redraw)
2731 char_u *str;
2732 int len;
2733 int redraw;
2734 {
2735 int retval;
2736 int i;
2737 int m;
2738 int c;
2739
2740 if (len < 0)
2741 len = (int)STRLEN(str);
2742
2743 /* Check if ccline.cmdbuff needs to be longer */
2744 if (ccline.cmdlen + len + 1 >= ccline.cmdbufflen)
2745 retval = realloc_cmdbuff(ccline.cmdlen + len);
2746 else
2747 retval = OK;
2748 if (retval == OK)
2749 {
2750 if (!ccline.overstrike)
2751 {
2752 mch_memmove(ccline.cmdbuff + ccline.cmdpos + len,
2753 ccline.cmdbuff + ccline.cmdpos,
2754 (size_t)(ccline.cmdlen - ccline.cmdpos));
2755 ccline.cmdlen += len;
2756 }
2757 else
2758 {
2759 #ifdef FEAT_MBYTE
2760 if (has_mbyte)
2761 {
2762 /* Count nr of characters in the new string. */
2763 m = 0;
2764 for (i = 0; i < len; i += (*mb_ptr2len)(str + i))
2765 ++m;
2766 /* Count nr of bytes in cmdline that are overwritten by these
2767 * characters. */
2768 for (i = ccline.cmdpos; i < ccline.cmdlen && m > 0;
2769 i += (*mb_ptr2len)(ccline.cmdbuff + i))
2770 --m;
2771 if (i < ccline.cmdlen)
2772 {
2773 mch_memmove(ccline.cmdbuff + ccline.cmdpos + len,
2774 ccline.cmdbuff + i, (size_t)(ccline.cmdlen - i));
2775 ccline.cmdlen += ccline.cmdpos + len - i;
2776 }
2777 else
2778 ccline.cmdlen = ccline.cmdpos + len;
2779 }
2780 else
2781 #endif
2782 if (ccline.cmdpos + len > ccline.cmdlen)
2783 ccline.cmdlen = ccline.cmdpos + len;
2784 }
2785 mch_memmove(ccline.cmdbuff + ccline.cmdpos, str, (size_t)len);
2786 ccline.cmdbuff[ccline.cmdlen] = NUL;
2787
2788 #ifdef FEAT_MBYTE
2789 if (enc_utf8)
2790 {
2791 /* When the inserted text starts with a composing character,
2792 * backup to the character before it. There could be two of them.
2793 */
2794 i = 0;
2795 c = utf_ptr2char(ccline.cmdbuff + ccline.cmdpos);
2796 while (ccline.cmdpos > 0 && utf_iscomposing(c))
2797 {
2798 i = (*mb_head_off)(ccline.cmdbuff,
2799 ccline.cmdbuff + ccline.cmdpos - 1) + 1;
2800 ccline.cmdpos -= i;
2801 len += i;
2802 c = utf_ptr2char(ccline.cmdbuff + ccline.cmdpos);
2803 }
2804 # ifdef FEAT_ARABIC
2805 if (i == 0 && ccline.cmdpos > 0 && arabic_maycombine(c))
2806 {
2807 /* Check the previous character for Arabic combining pair. */
2808 i = (*mb_head_off)(ccline.cmdbuff,
2809 ccline.cmdbuff + ccline.cmdpos - 1) + 1;
2810 if (arabic_combine(utf_ptr2char(ccline.cmdbuff
2811 + ccline.cmdpos - i), c))
2812 {
2813 ccline.cmdpos -= i;
2814 len += i;
2815 }
2816 else
2817 i = 0;
2818 }
2819 # endif
2820 if (i != 0)
2821 {
2822 /* Also backup the cursor position. */
2823 i = ptr2cells(ccline.cmdbuff + ccline.cmdpos);
2824 ccline.cmdspos -= i;
2825 msg_col -= i;
2826 if (msg_col < 0)
2827 {
2828 msg_col += Columns;
2829 --msg_row;
2830 }
2831 }
2832 }
2833 #endif
2834
2835 if (redraw && !cmd_silent)
2836 {
2837 msg_no_more = TRUE;
2838 i = cmdline_row;
2839 draw_cmdline(ccline.cmdpos, ccline.cmdlen - ccline.cmdpos);
2840 /* Avoid clearing the rest of the line too often. */
2841 if (cmdline_row != i || ccline.overstrike)
2842 msg_clr_eos();
2843 msg_no_more = FALSE;
2844 }
2845 #ifdef FEAT_FKMAP
2846 /*
2847 * If we are in Farsi command mode, the character input must be in
2848 * Insert mode. So do not advance the cmdpos.
2849 */
2850 if (!cmd_fkmap)
2851 #endif
2852 {
2853 if (KeyTyped)
2854 {
2855 m = Columns * Rows;
2856 if (m < 0) /* overflow, Columns or Rows at weird value */
2857 m = MAXCOL;
2858 }
2859 else
2860 m = MAXCOL;
2861 for (i = 0; i < len; ++i)
2862 {
2863 c = cmdline_charsize(ccline.cmdpos);
2864 #ifdef FEAT_MBYTE
2865 /* count ">" for a double-wide char that doesn't fit. */
2866 if (has_mbyte)
2867 correct_cmdspos(ccline.cmdpos, c);
2868 #endif
2869 /* Stop cursor at the end of the screen, but do increment the
2870 * insert position, so that entering a very long command
2871 * works, even though you can't see it. */
2872 if (ccline.cmdspos + c < m)
2873 ccline.cmdspos += c;
2874 #ifdef FEAT_MBYTE
2875 if (has_mbyte)
2876 {
2877 c = (*mb_ptr2len)(ccline.cmdbuff + ccline.cmdpos) - 1;
2878 if (c > len - i - 1)
2879 c = len - i - 1;
2880 ccline.cmdpos += c;
2881 i += c;
2882 }
2883 #endif
2884 ++ccline.cmdpos;
2885 }
2886 }
2887 }
2888 if (redraw)
2889 msg_check();
2890 return retval;
2891 }
2892
2893 static struct cmdline_info prev_ccline;
2894 static int prev_ccline_used = FALSE;
2895
2896 /*
2897 * Save ccline, because obtaining the "=" register may execute "normal :cmd"
2898 * and overwrite it. But get_cmdline_str() may need it, thus make it
2899 * available globally in prev_ccline.
2900 */
2901 static void
2902 save_cmdline(ccp)
2903 struct cmdline_info *ccp;
2904 {
2905 if (!prev_ccline_used)
2906 {
2907 vim_memset(&prev_ccline, 0, sizeof(struct cmdline_info));
2908 prev_ccline_used = TRUE;
2909 }
2910 *ccp = prev_ccline;
2911 prev_ccline = ccline;
2912 ccline.cmdbuff = NULL;
2913 ccline.cmdprompt = NULL;
2914 ccline.xpc = NULL;
2915 }
2916
2917 /*
2918 * Restore ccline after it has been saved with save_cmdline().
2919 */
2920 static void
2921 restore_cmdline(ccp)
2922 struct cmdline_info *ccp;
2923 {
2924 ccline = prev_ccline;
2925 prev_ccline = *ccp;
2926 }
2927
2928 #if defined(FEAT_EVAL) || defined(PROTO)
2929 /*
2930 * Save the command line into allocated memory. Returns a pointer to be
2931 * passed to restore_cmdline_alloc() later.
2932 * Returns NULL when failed.
2933 */
2934 char_u *
2935 save_cmdline_alloc()
2936 {
2937 struct cmdline_info *p;
2938
2939 p = (struct cmdline_info *)alloc((unsigned)sizeof(struct cmdline_info));
2940 if (p != NULL)
2941 save_cmdline(p);
2942 return (char_u *)p;
2943 }
2944
2945 /*
2946 * Restore the command line from the return value of save_cmdline_alloc().
2947 */
2948 void
2949 restore_cmdline_alloc(p)
2950 char_u *p;
2951 {
2952 if (p != NULL)
2953 {
2954 restore_cmdline((struct cmdline_info *)p);
2955 vim_free(p);
2956 }
2957 }
2958 #endif
2959
2960 /*
2961 * paste a yank register into the command line.
2962 * used by CTRL-R command in command-line mode
2963 * insert_reg() can't be used here, because special characters from the
2964 * register contents will be interpreted as commands.
2965 *
2966 * return FAIL for failure, OK otherwise
2967 */
2968 static int
2969 cmdline_paste(regname, literally, remcr)
2970 int regname;
2971 int literally; /* Insert text literally instead of "as typed" */
2972 int remcr; /* remove trailing CR */
2973 {
2974 long i;
2975 char_u *arg;
2976 char_u *p;
2977 int allocated;
2978 struct cmdline_info save_ccline;
2979
2980 /* check for valid regname; also accept special characters for CTRL-R in
2981 * the command line */
2982 if (regname != Ctrl_F && regname != Ctrl_P && regname != Ctrl_W
2983 && regname != Ctrl_A && !valid_yank_reg(regname, FALSE))
2984 return FAIL;
2985
2986 /* A register containing CTRL-R can cause an endless loop. Allow using
2987 * CTRL-C to break the loop. */
2988 line_breakcheck();
2989 if (got_int)
2990 return FAIL;
2991
2992 #ifdef FEAT_CLIPBOARD
2993 regname = may_get_selection(regname);
2994 #endif
2995
2996 /* Need to save and restore ccline. And set "textlock" to avoid nasty
2997 * things like going to another buffer when evaluating an expression. */
2998 save_cmdline(&save_ccline);
2999 ++textlock;
3000 i = get_spec_reg(regname, &arg, &allocated, TRUE);
3001 --textlock;
3002 restore_cmdline(&save_ccline);
3003
3004 if (i)
3005 {
3006 /* Got the value of a special register in "arg". */
3007 if (arg == NULL)
3008 return FAIL;
3009
3010 /* When 'incsearch' is set and CTRL-R CTRL-W used: skip the duplicate
3011 * part of the word. */
3012 p = arg;
3013 if (p_is && regname == Ctrl_W)
3014 {
3015 char_u *w;
3016 int len;
3017
3018 /* Locate start of last word in the cmd buffer. */
3019 for (w = ccline.cmdbuff + ccline.cmdlen; w > ccline.cmdbuff; )
3020 {
3021 #ifdef FEAT_MBYTE
3022 if (has_mbyte)
3023 {
3024 len = (*mb_head_off)(ccline.cmdbuff, w - 1) + 1;
3025 if (!vim_iswordc(mb_ptr2char(w - len)))
3026 break;
3027 w -= len;
3028 }
3029 else
3030 #endif
3031 {
3032 if (!vim_iswordc(w[-1]))
3033 break;
3034 --w;
3035 }
3036 }
3037 len = (int)((ccline.cmdbuff + ccline.cmdlen) - w);
3038 if (p_ic ? STRNICMP(w, arg, len) == 0 : STRNCMP(w, arg, len) == 0)
3039 p += len;
3040 }
3041
3042 cmdline_paste_str(p, literally);
3043 if (allocated)
3044 vim_free(arg);
3045 return OK;
3046 }
3047
3048 return cmdline_paste_reg(regname, literally, remcr);
3049 }
3050
3051 /*
3052 * Put a string on the command line.
3053 * When "literally" is TRUE, insert literally.
3054 * When "literally" is FALSE, insert as typed, but don't leave the command
3055 * line.
3056 */
3057 void
3058 cmdline_paste_str(s, literally)
3059 char_u *s;
3060 int literally;
3061 {
3062 int c, cv;
3063
3064 if (literally)
3065 put_on_cmdline(s, -1, TRUE);
3066 else
3067 while (*s != NUL)
3068 {
3069 cv = *s;
3070 if (cv == Ctrl_V && s[1])
3071 ++s;
3072 #ifdef FEAT_MBYTE
3073 if (has_mbyte)
3074 c = mb_cptr2char_adv(&s);
3075 else
3076 #endif
3077 c = *s++;
3078 if (cv == Ctrl_V || c == ESC || c == Ctrl_C || c == CAR || c == NL
3079 #ifdef UNIX
3080 || c == intr_char
3081 #endif
3082 || (c == Ctrl_BSL && *s == Ctrl_N))
3083 stuffcharReadbuff(Ctrl_V);
3084 stuffcharReadbuff(c);
3085 }
3086 }
3087
3088 #ifdef FEAT_WILDMENU
3089 /*
3090 * Delete characters on the command line, from "from" to the current
3091 * position.
3092 */
3093 static void
3094 cmdline_del(from)
3095 int from;
3096 {
3097 mch_memmove(ccline.cmdbuff + from, ccline.cmdbuff + ccline.cmdpos,
3098 (size_t)(ccline.cmdlen - ccline.cmdpos + 1));
3099 ccline.cmdlen -= ccline.cmdpos - from;
3100 ccline.cmdpos = from;
3101 }
3102 #endif
3103
3104 /*
3105 * this function is called when the screen size changes and with incremental
3106 * search
3107 */
3108 void
3109 redrawcmdline()
3110 {
3111 if (cmd_silent)
3112 return;
3113 need_wait_return = FALSE;
3114 compute_cmdrow();
3115 redrawcmd();
3116 cursorcmd();
3117 }
3118
3119 static void
3120 redrawcmdprompt()
3121 {
3122 int i;
3123
3124 if (cmd_silent)
3125 return;
3126 if (ccline.cmdfirstc != NUL)
3127 msg_putchar(ccline.cmdfirstc);
3128 if (ccline.cmdprompt != NULL)
3129 {
3130 msg_puts_attr(ccline.cmdprompt, ccline.cmdattr);
3131 ccline.cmdindent = msg_col + (msg_row - cmdline_row) * Columns;
3132 /* do the reverse of set_cmdspos() */
3133 if (ccline.cmdfirstc != NUL)
3134 --ccline.cmdindent;
3135 }
3136 else
3137 for (i = ccline.cmdindent; i > 0; --i)
3138 msg_putchar(' ');
3139 }
3140
3141 /*
3142 * Redraw what is currently on the command line.
3143 */
3144 void
3145 redrawcmd()
3146 {
3147 if (cmd_silent)
3148 return;
3149
3150 /* when 'incsearch' is set there may be no command line while redrawing */
3151 if (ccline.cmdbuff == NULL)
3152 {
3153 windgoto(cmdline_row, 0);
3154 msg_clr_eos();
3155 return;
3156 }
3157
3158 msg_start();
3159 redrawcmdprompt();
3160
3161 /* Don't use more prompt, truncate the cmdline if it doesn't fit. */
3162 msg_no_more = TRUE;
3163 draw_cmdline(0, ccline.cmdlen);
3164 msg_clr_eos();
3165 msg_no_more = FALSE;
3166
3167 set_cmdspos_cursor();
3168
3169 /*
3170 * An emsg() before may have set msg_scroll. This is used in normal mode,
3171 * in cmdline mode we can reset them now.
3172 */
3173 msg_scroll = FALSE; /* next message overwrites cmdline */
3174
3175 /* Typing ':' at the more prompt may set skip_redraw. We don't want this
3176 * in cmdline mode */
3177 skip_redraw = FALSE;
3178 }
3179
3180 void
3181 compute_cmdrow()
3182 {
3183 if (exmode_active || msg_scrolled != 0)
3184 cmdline_row = Rows - 1;
3185 else
3186 cmdline_row = W_WINROW(lastwin) + lastwin->w_height
3187 + W_STATUS_HEIGHT(lastwin);
3188 }
3189
3190 static void
3191 cursorcmd()
3192 {
3193 if (cmd_silent)
3194 return;
3195
3196 #ifdef FEAT_RIGHTLEFT
3197 if (cmdmsg_rl)
3198 {
3199 msg_row = cmdline_row + (ccline.cmdspos / (int)(Columns - 1));
3200 msg_col = (int)Columns - (ccline.cmdspos % (int)(Columns - 1)) - 1;
3201 if (msg_row <= 0)
3202 msg_row = Rows - 1;
3203 }
3204 else
3205 #endif
3206 {
3207 msg_row = cmdline_row + (ccline.cmdspos / (int)Columns);
3208 msg_col = ccline.cmdspos % (int)Columns;
3209 if (msg_row >= Rows)
3210 msg_row = Rows - 1;
3211 }
3212
3213 windgoto(msg_row, msg_col);
3214 #if defined(FEAT_XIM) && defined(FEAT_GUI_GTK)
3215 redrawcmd_preedit();
3216 #endif
3217 #ifdef MCH_CURSOR_SHAPE
3218 mch_update_cursor();
3219 #endif
3220 }
3221
3222 void
3223 gotocmdline(clr)
3224 int clr;
3225 {
3226 msg_start();
3227 #ifdef FEAT_RIGHTLEFT
3228 if (cmdmsg_rl)
3229 msg_col = Columns - 1;
3230 else
3231 #endif
3232 msg_col = 0; /* always start in column 0 */
3233 if (clr) /* clear the bottom line(s) */
3234 msg_clr_eos(); /* will reset clear_cmdline */
3235 windgoto(cmdline_row, 0);
3236 }
3237
3238 /*
3239 * Check the word in front of the cursor for an abbreviation.
3240 * Called when the non-id character "c" has been entered.
3241 * When an abbreviation is recognized it is removed from the text with
3242 * backspaces and the replacement string is inserted, followed by "c".
3243 */
3244 static int
3245 ccheck_abbr(c)
3246 int c;
3247 {
3248 if (p_paste || no_abbr) /* no abbreviations or in paste mode */
3249 return FALSE;
3250
3251 return check_abbr(c, ccline.cmdbuff, ccline.cmdpos, 0);
3252 }
3253
3254 /*
3255 * Return FAIL if this is not an appropriate context in which to do
3256 * completion of anything, return OK if it is (even if there are no matches).
3257 * For the caller, this means that the character is just passed through like a
3258 * normal character (instead of being expanded). This allows :s/^I^D etc.
3259 */
3260 static int
3261 nextwild(xp, type, options)
3262 expand_T *xp;
3263 int type;
3264 int options; /* extra options for ExpandOne() */
3265 {
3266 int i, j;
3267 char_u *p1;
3268 char_u *p2;
3269 int oldlen;
3270 int difflen;
3271 int v;
3272
3273 if (xp->xp_numfiles == -1)
3274 {
3275 set_expand_context(xp);
3276 cmd_showtail = expand_showtail(xp);
3277 }
3278
3279 if (xp->xp_context == EXPAND_UNSUCCESSFUL)
3280 {
3281 beep_flush();
3282 return OK; /* Something illegal on command line */
3283 }
3284 if (xp->xp_context == EXPAND_NOTHING)
3285 {
3286 /* Caller can use the character as a normal char instead */
3287 return FAIL;
3288 }
3289
3290 MSG_PUTS("..."); /* show that we are busy */
3291 out_flush();
3292
3293 i = (int)(xp->xp_pattern - ccline.cmdbuff);
3294 oldlen = ccline.cmdpos - i;
3295
3296 if (type == WILD_NEXT || type == WILD_PREV)
3297 {
3298 /*
3299 * Get next/previous match for a previous expanded pattern.
3300 */
3301 p2 = ExpandOne(xp, NULL, NULL, 0, type);
3302 }
3303 else
3304 {
3305 /*
3306 * Translate string into pattern and expand it.
3307 */
3308 if ((p1 = addstar(&ccline.cmdbuff[i], oldlen, xp->xp_context)) == NULL)
3309 p2 = NULL;
3310 else
3311 {
3312 p2 = ExpandOne(xp, p1, vim_strnsave(&ccline.cmdbuff[i], oldlen),
3313 WILD_HOME_REPLACE|WILD_ADD_SLASH|WILD_SILENT|WILD_ESCAPE
3314 |options, type);
3315 vim_free(p1);
3316 /* longest match: make sure it is not shorter (happens with :help */
3317 if (p2 != NULL && type == WILD_LONGEST)
3318 {
3319 for (j = 0; j < oldlen; ++j)
3320 if (ccline.cmdbuff[i + j] == '*'
3321 || ccline.cmdbuff[i + j] == '?')
3322 break;
3323 if ((int)STRLEN(p2) < j)
3324 {
3325 vim_free(p2);
3326 p2 = NULL;
3327 }
3328 }
3329 }
3330 }
3331
3332 if (p2 != NULL && !got_int)
3333 {
3334 difflen = (int)STRLEN(p2) - oldlen;
3335 if (ccline.cmdlen + difflen > ccline.cmdbufflen - 4)
3336 {
3337 v = realloc_cmdbuff(ccline.cmdlen + difflen);
3338 xp->xp_pattern = ccline.cmdbuff + i;
3339 }
3340 else
3341 v = OK;
3342 if (v == OK)
3343 {
3344 mch_memmove(&ccline.cmdbuff[ccline.cmdpos + difflen],
3345 &ccline.cmdbuff[ccline.cmdpos],
3346 (size_t)(ccline.cmdlen - ccline.cmdpos + 1));
3347 mch_memmove(&ccline.cmdbuff[i], p2, STRLEN(p2));
3348 ccline.cmdlen += difflen;
3349 ccline.cmdpos += difflen;
3350 }
3351 }
3352 vim_free(p2);
3353
3354 redrawcmd();
3355 cursorcmd();
3356
3357 /* When expanding a ":map" command and no matches are found, assume that
3358 * the key is supposed to be inserted literally */
3359 if (xp->xp_context == EXPAND_MAPPINGS && p2 == NULL)
3360 return FAIL;
3361
3362 if (xp->xp_numfiles <= 0 && p2 == NULL)
3363 beep_flush();
3364 else if (xp->xp_numfiles == 1)
3365 /* free expanded pattern */
3366 (void)ExpandOne(xp, NULL, NULL, 0, WILD_FREE);
3367
3368 return OK;
3369 }
3370
3371 /*
3372 * Do wildcard expansion on the string 'str'.
3373 * Chars that should not be expanded must be preceded with a backslash.
3374 * Return a pointer to allocated memory containing the new string.
3375 * Return NULL for failure.
3376 *
3377 * "orig" is the originally expanded string, copied to allocated memory. It
3378 * should either be kept in orig_save or freed. When "mode" is WILD_NEXT or
3379 * WILD_PREV "orig" should be NULL.
3380 *
3381 * Results are cached in xp->xp_files and xp->xp_numfiles, except when "mode"
3382 * is WILD_EXPAND_FREE or WILD_ALL.
3383 *
3384 * mode = WILD_FREE: just free previously expanded matches
3385 * mode = WILD_EXPAND_FREE: normal expansion, do not keep matches
3386 * mode = WILD_EXPAND_KEEP: normal expansion, keep matches
3387 * mode = WILD_NEXT: use next match in multiple match, wrap to first
3388 * mode = WILD_PREV: use previous match in multiple match, wrap to first
3389 * mode = WILD_ALL: return all matches concatenated
3390 * mode = WILD_LONGEST: return longest matched part
3391 *
3392 * options = WILD_LIST_NOTFOUND: list entries without a match
3393 * options = WILD_HOME_REPLACE: do home_replace() for buffer names
3394 * options = WILD_USE_NL: Use '\n' for WILD_ALL
3395 * options = WILD_NO_BEEP: Don't beep for multiple matches
3396 * options = WILD_ADD_SLASH: add a slash after directory names
3397 * options = WILD_KEEP_ALL: don't remove 'wildignore' entries
3398 * options = WILD_SILENT: don't print warning messages
3399 * options = WILD_ESCAPE: put backslash before special chars
3400 *
3401 * The variables xp->xp_context and xp->xp_backslash must have been set!
3402 */
3403 char_u *
3404 ExpandOne(xp, str, orig, options, mode)
3405 expand_T *xp;
3406 char_u *str;
3407 char_u *orig; /* allocated copy of original of expanded string */
3408 int options;
3409 int mode;
3410 {
3411 char_u *ss = NULL;
3412 static int findex;
3413 static char_u *orig_save = NULL; /* kept value of orig */
3414 int orig_saved = FALSE;
3415 int i;
3416 long_u len;
3417 int non_suf_match; /* number without matching suffix */
3418
3419 /*
3420 * first handle the case of using an old match
3421 */
3422 if (mode == WILD_NEXT || mode == WILD_PREV)
3423 {
3424 if (xp->xp_numfiles > 0)
3425 {
3426 if (mode == WILD_PREV)
3427 {
3428 if (findex == -1)
3429 findex = xp->xp_numfiles;
3430 --findex;
3431 }
3432 else /* mode == WILD_NEXT */
3433 ++findex;
3434
3435 /*
3436 * When wrapping around, return the original string, set findex to
3437 * -1.
3438 */
3439 if (findex < 0)
3440 {
3441 if (orig_save == NULL)
3442 findex = xp->xp_numfiles - 1;
3443 else
3444 findex = -1;
3445 }
3446 if (findex >= xp->xp_numfiles)
3447 {
3448 if (orig_save == NULL)
3449 findex = 0;
3450 else
3451 findex = -1;
3452 }
3453 #ifdef FEAT_WILDMENU
3454 if (p_wmnu)
3455 win_redr_status_matches(xp, xp->xp_numfiles, xp->xp_files,
3456 findex, cmd_showtail);
3457 #endif
3458 if (findex == -1)
3459 return vim_strsave(orig_save);
3460 return vim_strsave(xp->xp_files[findex]);
3461 }
3462 else
3463 return NULL;
3464 }
3465
3466 /* free old names */
3467 if (xp->xp_numfiles != -1 && mode != WILD_ALL && mode != WILD_LONGEST)
3468 {
3469 FreeWild(xp->xp_numfiles, xp->xp_files);
3470 xp->xp_numfiles = -1;
3471 vim_free(orig_save);
3472 orig_save = NULL;
3473 }
3474 findex = 0;
3475
3476 if (mode == WILD_FREE) /* only release file name */
3477 return NULL;
3478
3479 if (xp->xp_numfiles == -1)
3480 {
3481 vim_free(orig_save);
3482 orig_save = orig;
3483 orig_saved = TRUE;
3484
3485 /*
3486 * Do the expansion.
3487 */
3488 if (ExpandFromContext(xp, str, &xp->xp_numfiles, &xp->xp_files,
3489 options) == FAIL)
3490 {
3491 #ifdef FNAME_ILLEGAL
3492 /* Illegal file name has been silently skipped. But when there
3493 * are wildcards, the real problem is that there was no match,
3494 * causing the pattern to be added, which has illegal characters.
3495 */
3496 if (!(options & WILD_SILENT) && (options & WILD_LIST_NOTFOUND))
3497 EMSG2(_(e_nomatch2), str);
3498 #endif
3499 }
3500 else if (xp->xp_numfiles == 0)
3501 {
3502 if (!(options & WILD_SILENT))
3503 EMSG2(_(e_nomatch2), str);
3504 }
3505 else
3506 {
3507 /* Escape the matches for use on the command line. */
3508 ExpandEscape(xp, str, xp->xp_numfiles, xp->xp_files, options);
3509
3510 /*
3511 * Check for matching suffixes in file names.
3512 */
3513 if (mode != WILD_ALL && mode != WILD_LONGEST)
3514 {
3515 if (xp->xp_numfiles)
3516 non_suf_match = xp->xp_numfiles;
3517 else
3518 non_suf_match = 1;
3519 if ((xp->xp_context == EXPAND_FILES
3520 || xp->xp_context == EXPAND_DIRECTORIES)
3521 && xp->xp_numfiles > 1)
3522 {
3523 /*
3524 * More than one match; check suffix.
3525 * The files will have been sorted on matching suffix in
3526 * expand_wildcards, only need to check the first two.
3527 */
3528 non_suf_match = 0;
3529 for (i = 0; i < 2; ++i)
3530 if (match_suffix(xp->xp_files[i]))
3531 ++non_suf_match;
3532 }
3533 if (non_suf_match != 1)
3534 {
3535 /* Can we ever get here unless it's while expanding
3536 * interactively? If not, we can get rid of this all
3537 * together. Don't really want to wait for this message
3538 * (and possibly have to hit return to continue!).
3539 */
3540 if (!(options & WILD_SILENT))
3541 EMSG(_(e_toomany));
3542 else if (!(options & WILD_NO_BEEP))
3543 beep_flush();
3544 }
3545 if (!(non_suf_match != 1 && mode == WILD_EXPAND_FREE))
3546 ss = vim_strsave(xp->xp_files[0]);
3547 }
3548 }
3549 }
3550
3551 /* Find longest common part */
3552 if (mode == WILD_LONGEST && xp->xp_numfiles > 0)
3553 {
3554 for (len = 0; xp->xp_files[0][len]; ++len)
3555 {
3556 for (i = 0; i < xp->xp_numfiles; ++i)
3557 {
3558 #ifdef CASE_INSENSITIVE_FILENAME
3559 if (xp->xp_context == EXPAND_DIRECTORIES
3560 || xp->xp_context == EXPAND_FILES
3561 || xp->xp_context == EXPAND_SHELLCMD
3562 || xp->xp_context == EXPAND_BUFFERS)
3563 {
3564 if (TOLOWER_LOC(xp->xp_files[i][len]) !=
3565 TOLOWER_LOC(xp->xp_files[0][len]))
3566 break;
3567 }
3568 else
3569 #endif
3570 if (xp->xp_files[i][len] != xp->xp_files[0][len])
3571 break;
3572 }
3573 if (i < xp->xp_numfiles)
3574 {
3575 if (!(options & WILD_NO_BEEP))
3576 vim_beep();
3577 break;
3578 }
3579 }
3580 ss = alloc((unsigned)len + 1);
3581 if (ss)
3582 vim_strncpy(ss, xp->xp_files[0], (size_t)len);
3583 findex = -1; /* next p_wc gets first one */
3584 }
3585
3586 /* Concatenate all matching names */
3587 if (mode == WILD_ALL && xp->xp_numfiles > 0)
3588 {
3589 len = 0;
3590 for (i = 0; i < xp->xp_numfiles; ++i)
3591 len += (long_u)STRLEN(xp->xp_files[i]) + 1;
3592 ss = lalloc(len, TRUE);
3593 if (ss != NULL)
3594 {
3595 *ss = NUL;
3596 for (i = 0; i < xp->xp_numfiles; ++i)
3597 {
3598 STRCAT(ss, xp->xp_files[i]);
3599 if (i != xp->xp_numfiles - 1)
3600 STRCAT(ss, (options & WILD_USE_NL) ? "\n" : " ");
3601 }
3602 }
3603 }
3604
3605 if (mode == WILD_EXPAND_FREE || mode == WILD_ALL)
3606 ExpandCleanup(xp);
3607
3608 /* Free "orig" if it wasn't stored in "orig_save". */
3609 if (!orig_saved)
3610 vim_free(orig);
3611
3612 return ss;
3613 }
3614
3615 /*
3616 * Prepare an expand structure for use.
3617 */
3618 void
3619 ExpandInit(xp)
3620 expand_T *xp;
3621 {
3622 xp->xp_pattern = NULL;
3623 xp->xp_backslash = XP_BS_NONE;
3624 #ifndef BACKSLASH_IN_FILENAME
3625 xp->xp_shell = FALSE;
3626 #endif
3627 xp->xp_numfiles = -1;
3628 xp->xp_files = NULL;
3629 #if defined(FEAT_USR_CMDS) && defined(FEAT_EVAL) && defined(FEAT_CMDL_COMPL)
3630 xp->xp_arg = NULL;
3631 #endif
3632 }
3633
3634 /*
3635 * Cleanup an expand structure after use.
3636 */
3637 void
3638 ExpandCleanup(xp)
3639 expand_T *xp;
3640 {
3641 if (xp->xp_numfiles >= 0)
3642 {
3643 FreeWild(xp->xp_numfiles, xp->xp_files);
3644 xp->xp_numfiles = -1;
3645 }
3646 }
3647
3648 void
3649 ExpandEscape(xp, str, numfiles, files, options)
3650 expand_T *xp;
3651 char_u *str;
3652 int numfiles;
3653 char_u **files;
3654 int options;
3655 {
3656 int i;
3657 char_u *p;
3658
3659 /*
3660 * May change home directory back to "~"
3661 */
3662 if (options & WILD_HOME_REPLACE)
3663 tilde_replace(str, numfiles, files);
3664
3665 if (options & WILD_ESCAPE)
3666 {
3667 if (xp->xp_context == EXPAND_FILES
3668 || xp->xp_context == EXPAND_SHELLCMD
3669 || xp->xp_context == EXPAND_BUFFERS
3670 || xp->xp_context == EXPAND_DIRECTORIES)
3671 {
3672 /*
3673 * Insert a backslash into a file name before a space, \, %, #
3674 * and wildmatch characters, except '~'.
3675 */
3676 for (i = 0; i < numfiles; ++i)
3677 {
3678 /* for ":set path=" we need to escape spaces twice */
3679 if (xp->xp_backslash == XP_BS_THREE)
3680 {
3681 p = vim_strsave_escaped(files[i], (char_u *)" ");
3682 if (p != NULL)
3683 {
3684 vim_free(files[i]);
3685 files[i] = p;
3686 #if defined(BACKSLASH_IN_FILENAME)
3687 p = vim_strsave_escaped(files[i], (char_u *)" ");
3688 if (p != NULL)
3689 {
3690 vim_free(files[i]);
3691 files[i] = p;
3692 }
3693 #endif
3694 }
3695 }
3696 #ifdef BACKSLASH_IN_FILENAME
3697 p = vim_strsave_fnameescape(files[i], FALSE);
3698 #else
3699 p = vim_strsave_fnameescape(files[i], xp->xp_shell);
3700 #endif
3701 if (p != NULL)
3702 {
3703 vim_free(files[i]);
3704 files[i] = p;
3705 }
3706
3707 /* If 'str' starts with "\~", replace "~" at start of
3708 * files[i] with "\~". */
3709 if (str[0] == '\\' && str[1] == '~' && files[i][0] == '~')
3710 escape_fname(&files[i]);
3711 }
3712 xp->xp_backslash = XP_BS_NONE;
3713
3714 /* If the first file starts with a '+' escape it. Otherwise it
3715 * could be seen as "+cmd". */
3716 if (*files[0] == '+')
3717 escape_fname(&files[0]);
3718 }
3719 else if (xp->xp_context == EXPAND_TAGS)
3720 {
3721 /*
3722 * Insert a backslash before characters in a tag name that
3723 * would terminate the ":tag" command.
3724 */
3725 for (i = 0; i < numfiles; ++i)
3726 {
3727 p = vim_strsave_escaped(files[i], (char_u *)"\\|\"");
3728 if (p != NULL)
3729 {
3730 vim_free(files[i]);
3731 files[i] = p;
3732 }
3733 }
3734 }
3735 }
3736 }
3737
3738 /*
3739 * Escape special characters in "fname" for when used as a file name argument
3740 * after a Vim command, or, when "shell" is non-zero, a shell command.
3741 * Returns the result in allocated memory.
3742 */
3743 char_u *
3744 vim_strsave_fnameescape(fname, shell)
3745 char_u *fname;
3746 int shell;
3747 {
3748 char_u *p;
3749 #ifdef BACKSLASH_IN_FILENAME
3750 char_u buf[20];
3751 int j = 0;
3752
3753 /* Don't escape '[' and '{' if they are in 'isfname'. */
3754 for (p = PATH_ESC_CHARS; *p != NUL; ++p)
3755 if ((*p != '[' && *p != '{') || !vim_isfilec(*p))
3756 buf[j++] = *p;
3757 buf[j] = NUL;
3758 p = vim_strsave_escaped(fname, buf);
3759 #else
3760 p = vim_strsave_escaped(fname, shell ? SHELL_ESC_CHARS : PATH_ESC_CHARS);
3761 if (shell && csh_like_shell() && p != NULL)
3762 {
3763 char_u *s;
3764
3765 /* For csh and similar shells need to put two backslashes before '!'.
3766 * One is taken by Vim, one by the shell. */
3767 s = vim_strsave_escaped(p, (char_u *)"!");
3768 vim_free(p);
3769 p = s;
3770 }
3771 #endif
3772
3773 /* '>' and '+' are special at the start of some commands, e.g. ":edit" and
3774 * ":write". "cd -" has a special meaning. */
3775 if (*p == '>' || *p == '+' || (*p == '-' && p[1] == NUL))
3776 escape_fname(&p);
3777
3778 return p;
3779 }
3780
3781 /*
3782 * Put a backslash before the file name in "pp", which is in allocated memory.
3783 */
3784 static void
3785 escape_fname(pp)
3786 char_u **pp;
3787 {
3788 char_u *p;
3789
3790 p = alloc((unsigned)(STRLEN(*pp) + 2));
3791 if (p != NULL)
3792 {
3793 p[0] = '\\';
3794 STRCPY(p + 1, *pp);
3795 vim_free(*pp);
3796 *pp = p;
3797 }
3798 }
3799
3800 /*
3801 * For each file name in files[num_files]:
3802 * If 'orig_pat' starts with "~/", replace the home directory with "~".
3803 */
3804 void
3805 tilde_replace(orig_pat, num_files, files)
3806 char_u *orig_pat;
3807 int num_files;
3808 char_u **files;
3809 {
3810 int i;
3811 char_u *p;
3812
3813 if (orig_pat[0] == '~' && vim_ispathsep(orig_pat[1]))
3814 {
3815 for (i = 0; i < num_files; ++i)
3816 {
3817 p = home_replace_save(NULL, files[i]);
3818 if (p != NULL)
3819 {
3820 vim_free(files[i]);
3821 files[i] = p;
3822 }
3823 }
3824 }
3825 }
3826
3827 /*
3828 * Show all matches for completion on the command line.
3829 * Returns EXPAND_NOTHING when the character that triggered expansion should
3830 * be inserted like a normal character.
3831 */
3832 static int
3833 showmatches(xp, wildmenu)
3834 expand_T *xp;
3835 int wildmenu UNUSED;
3836 {
3837 #define L_SHOWFILE(m) (showtail ? sm_gettail(files_found[m]) : files_found[m])
3838 int num_files;
3839 char_u **files_found;
3840 int i, j, k;
3841 int maxlen;
3842 int lines;
3843 int columns;
3844 char_u *p;
3845 int lastlen;
3846 int attr;
3847 int showtail;
3848
3849 if (xp->xp_numfiles == -1)
3850 {
3851 set_expand_context(xp);
3852 i = expand_cmdline(xp, ccline.cmdbuff, ccline.cmdpos,
3853 &num_files, &files_found);
3854 showtail = expand_showtail(xp);
3855 if (i != EXPAND_OK)
3856 return i;
3857
3858 }
3859 else
3860 {
3861 num_files = xp->xp_numfiles;
3862 files_found = xp->xp_files;
3863 showtail = cmd_showtail;
3864 }
3865
3866 #ifdef FEAT_WILDMENU
3867 if (!wildmenu)
3868 {
3869 #endif
3870 msg_didany = FALSE; /* lines_left will be set */
3871 msg_start(); /* prepare for paging */
3872 msg_putchar('\n');
3873 out_flush();
3874 cmdline_row = msg_row;
3875 msg_didany = FALSE; /* lines_left will be set again */
3876 msg_start(); /* prepare for paging */
3877 #ifdef FEAT_WILDMENU
3878 }
3879 #endif
3880
3881 if (got_int)
3882 got_int = FALSE; /* only int. the completion, not the cmd line */
3883 #ifdef FEAT_WILDMENU
3884 else if (wildmenu)
3885 win_redr_status_matches(xp, num_files, files_found, 0, showtail);
3886 #endif
3887 else
3888 {
3889 /* find the length of the longest file name */
3890 maxlen = 0;
3891 for (i = 0; i < num_files; ++i)
3892 {
3893 if (!showtail && (xp->xp_context == EXPAND_FILES
3894 || xp->xp_context == EXPAND_SHELLCMD
3895 || xp->xp_context == EXPAND_BUFFERS))
3896 {
3897 home_replace(NULL, files_found[i], NameBuff, MAXPATHL, TRUE);
3898 j = vim_strsize(NameBuff);
3899 }
3900 else
3901 j = vim_strsize(L_SHOWFILE(i));
3902 if (j > maxlen)
3903 maxlen = j;
3904 }
3905
3906 if (xp->xp_context == EXPAND_TAGS_LISTFILES)
3907 lines = num_files;
3908 else
3909 {
3910 /* compute the number of columns and lines for the listing */
3911 maxlen += 2; /* two spaces between file names */
3912 columns = ((int)Columns + 2) / maxlen;
3913 if (columns < 1)
3914 columns = 1;
3915 lines = (num_files + columns - 1) / columns;
3916 }
3917
3918 attr = hl_attr(HLF_D); /* find out highlighting for directories */
3919
3920 if (xp->xp_context == EXPAND_TAGS_LISTFILES)
3921 {
3922 MSG_PUTS_ATTR(_("tagname"), hl_attr(HLF_T));
3923 msg_clr_eos();
3924 msg_advance(maxlen - 3);
3925 MSG_PUTS_ATTR(_(" kind file\n"), hl_attr(HLF_T));
3926 }
3927
3928 /* list the files line by line */
3929 for (i = 0; i < lines; ++i)
3930 {
3931 lastlen = 999;
3932 for (k = i; k < num_files; k += lines)
3933 {
3934 if (xp->xp_context == EXPAND_TAGS_LISTFILES)
3935 {
3936 msg_outtrans_attr(files_found[k], hl_attr(HLF_D));
3937 p = files_found[k] + STRLEN(files_found[k]) + 1;
3938 msg_advance(maxlen + 1);
3939 msg_puts(p);
3940 msg_advance(maxlen + 3);
3941 msg_puts_long_attr(p + 2, hl_attr(HLF_D));
3942 break;
3943 }
3944 for (j = maxlen - lastlen; --j >= 0; )
3945 msg_putchar(' ');
3946 if (xp->xp_context == EXPAND_FILES
3947 || xp->xp_context == EXPAND_SHELLCMD
3948 || xp->xp_context == EXPAND_BUFFERS)
3949 {
3950 /* highlight directories */
3951 j = (mch_isdir(files_found[k]));
3952 if (showtail)
3953 p = L_SHOWFILE(k);
3954 else
3955 {
3956 home_replace(NULL, files_found[k], NameBuff, MAXPATHL,
3957 TRUE);
3958 p = NameBuff;
3959 }
3960 }
3961 else
3962 {
3963 j = FALSE;
3964 p = L_SHOWFILE(k);
3965 }
3966 lastlen = msg_outtrans_attr(p, j ? attr : 0);
3967 }
3968 if (msg_col > 0) /* when not wrapped around */
3969 {
3970 msg_clr_eos();
3971 msg_putchar('\n');
3972 }
3973 out_flush(); /* show one line at a time */
3974 if (got_int)
3975 {
3976 got_int = FALSE;
3977 break;
3978 }
3979 }
3980
3981 /*
3982 * we redraw the command below the lines that we have just listed
3983 * This is a bit tricky, but it saves a lot of screen updating.
3984 */
3985 cmdline_row = msg_row; /* will put it back later */
3986 }
3987
3988 if (xp->xp_numfiles == -1)
3989 FreeWild(num_files, files_found);
3990
3991 return EXPAND_OK;
3992 }
3993
3994 /*
3995 * Private gettail for showmatches() (and win_redr_status_matches()):
3996 * Find tail of file name path, but ignore trailing "/".
3997 */
3998 char_u *
3999 sm_gettail(s)
4000 char_u *s;
4001 {
4002 char_u *p;
4003 char_u *t = s;
4004 int had_sep = FALSE;
4005
4006 for (p = s; *p != NUL; )
4007 {
4008 if (vim_ispathsep(*p)
4009 #ifdef BACKSLASH_IN_FILENAME
4010 && !rem_backslash(p)
4011 #endif
4012 )
4013 had_sep = TRUE;
4014 else if (had_sep)
4015 {
4016 t = p;
4017 had_sep = FALSE;
4018 }
4019 mb_ptr_adv(p);
4020 }
4021 return t;
4022 }
4023
4024 /*
4025 * Return TRUE if we only need to show the tail of completion matches.
4026 * When not completing file names or there is a wildcard in the path FALSE is
4027 * returned.
4028 */
4029 static int
4030 expand_showtail(xp)
4031 expand_T *xp;
4032 {
4033 char_u *s;
4034 char_u *end;
4035
4036 /* When not completing file names a "/" may mean something different. */
4037 if (xp->xp_context != EXPAND_FILES
4038 && xp->xp_context != EXPAND_SHELLCMD
4039 && xp->xp_context != EXPAND_DIRECTORIES)
4040 return FALSE;
4041
4042 end = gettail(xp->xp_pattern);
4043 if (end == xp->xp_pattern) /* there is no path separator */
4044 return FALSE;
4045
4046 for (s = xp->xp_pattern; s < end; s++)
4047 {
4048 /* Skip escaped wildcards. Only when the backslash is not a path
4049 * separator, on DOS the '*' "path\*\file" must not be skipped. */
4050 if (rem_backslash(s))
4051 ++s;
4052 else if (vim_strchr((char_u *)"*?[", *s) != NULL)
4053 return FALSE;
4054 }
4055 return TRUE;
4056 }
4057
4058 /*
4059 * Prepare a string for expansion.
4060 * When expanding file names: The string will be used with expand_wildcards().
4061 * Copy the file name into allocated memory and add a '*' at the end.
4062 * When expanding other names: The string will be used with regcomp(). Copy
4063 * the name into allocated memory and prepend "^".
4064 */
4065 char_u *
4066 addstar(fname, len, context)
4067 char_u *fname;
4068 int len;
4069 int context; /* EXPAND_FILES etc. */
4070 {
4071 char_u *retval;
4072 int i, j;
4073 int new_len;
4074 char_u *tail;
4075
4076 if (context != EXPAND_FILES
4077 && context != EXPAND_SHELLCMD
4078 && context != EXPAND_DIRECTORIES)
4079 {
4080 /*
4081 * Matching will be done internally (on something other than files).
4082 * So we convert the file-matching-type wildcards into our kind for
4083 * use with vim_regcomp(). First work out how long it will be:
4084 */
4085
4086 /* For help tags the translation is done in find_help_tags().
4087 * For a tag pattern starting with "/" no translation is needed. */
4088 if (context == EXPAND_HELP
4089 || context == EXPAND_COLORS
4090 || context == EXPAND_COMPILER
4091 || (context == EXPAND_TAGS && fname[0] == '/'))
4092 retval = vim_strnsave(fname, len);
4093 else
4094 {
4095 new_len = len + 2; /* +2 for '^' at start, NUL at end */
4096 for (i = 0; i < len; i++)
4097 {
4098 if (fname[i] == '*' || fname[i] == '~')
4099 new_len++; /* '*' needs to be replaced by ".*"
4100 '~' needs to be replaced by "\~" */
4101
4102 /* Buffer names are like file names. "." should be literal */
4103 if (context == EXPAND_BUFFERS && fname[i] == '.')
4104 new_len++; /* "." becomes "\." */
4105
4106 /* Custom expansion takes care of special things, match
4107 * backslashes literally (perhaps also for other types?) */
4108 if ((context == EXPAND_USER_DEFINED
4109 || context == EXPAND_USER_LIST) && fname[i] == '\\')
4110 new_len++; /* '\' becomes "\\" */
4111 }
4112 retval = alloc(new_len);
4113 if (retval != NULL)
4114 {
4115 retval[0] = '^';
4116 j = 1;
4117 for (i = 0; i < len; i++, j++)
4118 {
4119 /* Skip backslash. But why? At least keep it for custom
4120 * expansion. */
4121 if (context != EXPAND_USER_DEFINED
4122 && context != EXPAND_USER_LIST
4123 && fname[i] == '\\'
4124 && ++i == len)
4125 break;
4126
4127 switch (fname[i])
4128 {
4129 case '*': retval[j++] = '.';
4130 break;
4131 case '~': retval[j++] = '\\';
4132 break;
4133 case '?': retval[j] = '.';
4134 continue;
4135 case '.': if (context == EXPAND_BUFFERS)
4136 retval[j++] = '\\';
4137 break;
4138 case '\\': if (context == EXPAND_USER_DEFINED
4139 || context == EXPAND_USER_LIST)
4140 retval[j++] = '\\';
4141 break;
4142 }
4143 retval[j] = fname[i];
4144 }
4145 retval[j] = NUL;
4146 }
4147 }
4148 }
4149 else
4150 {
4151 retval = alloc(len + 4);
4152 if (retval != NULL)
4153 {
4154 vim_strncpy(retval, fname, len);
4155
4156 /*
4157 * Don't add a star to *, ~, ~user, $var or `cmd`.
4158 * * would become **, which walks the whole tree.
4159 * ~ would be at the start of the file name, but not the tail.
4160 * $ could be anywhere in the tail.
4161 * ` could be anywhere in the file name.
4162 * When the name ends in '$' don't add a star, remove the '$'.
4163 */
4164 tail = gettail(retval);
4165 if ((*retval != '~' || tail != retval)
4166 && (len == 0 || retval[len - 1] != '*')
4167 && vim_strchr(tail, '$') == NULL
4168 && vim_strchr(retval, '`') == NULL)
4169 retval[len++] = '*';
4170 else if (len > 0 && retval[len - 1] == '$')
4171 --len;
4172 retval[len] = NUL;
4173 }
4174 }
4175 return retval;
4176 }
4177
4178 /*
4179 * Must parse the command line so far to work out what context we are in.
4180 * Completion can then be done based on that context.
4181 * This routine sets the variables:
4182 * xp->xp_pattern The start of the pattern to be expanded within
4183 * the command line (ends at the cursor).
4184 * xp->xp_context The type of thing to expand. Will be one of:
4185 *
4186 * EXPAND_UNSUCCESSFUL Used sometimes when there is something illegal on
4187 * the command line, like an unknown command. Caller
4188 * should beep.
4189 * EXPAND_NOTHING Unrecognised context for completion, use char like
4190 * a normal char, rather than for completion. eg
4191 * :s/^I/
4192 * EXPAND_COMMANDS Cursor is still touching the command, so complete
4193 * it.
4194 * EXPAND_BUFFERS Complete file names for :buf and :sbuf commands.
4195 * EXPAND_FILES After command with XFILE set, or after setting
4196 * with P_EXPAND set. eg :e ^I, :w>>^I
4197 * EXPAND_DIRECTORIES In some cases this is used instead of the latter
4198 * when we know only directories are of interest. eg
4199 * :set dir=^I
4200 * EXPAND_SHELLCMD After ":!cmd", ":r !cmd" or ":w !cmd".
4201 * EXPAND_SETTINGS Complete variable names. eg :set d^I
4202 * EXPAND_BOOL_SETTINGS Complete boolean variables only, eg :set no^I
4203 * EXPAND_TAGS Complete tags from the files in p_tags. eg :ta a^I
4204 * EXPAND_TAGS_LISTFILES As above, but list filenames on ^D, after :tselect
4205 * EXPAND_HELP Complete tags from the file 'helpfile'/tags
4206 * EXPAND_EVENTS Complete event names
4207 * EXPAND_SYNTAX Complete :syntax command arguments
4208 * EXPAND_HIGHLIGHT Complete highlight (syntax) group names
4209 * EXPAND_AUGROUP Complete autocommand group names
4210 * EXPAND_USER_VARS Complete user defined variable names, eg :unlet a^I
4211 * EXPAND_MAPPINGS Complete mapping and abbreviation names,
4212 * eg :unmap a^I , :cunab x^I
4213 * EXPAND_FUNCTIONS Complete internal or user defined function names,
4214 * eg :call sub^I
4215 * EXPAND_USER_FUNC Complete user defined function names, eg :delf F^I
4216 * EXPAND_EXPRESSION Complete internal or user defined function/variable
4217 * names in expressions, eg :while s^I
4218 * EXPAND_ENV_VARS Complete environment variable names
4219 */
4220 static void
4221 set_expand_context(xp)
4222 expand_T *xp;
4223 {
4224 /* only expansion for ':', '>' and '=' command-lines */
4225 if (ccline.cmdfirstc != ':'
4226 #ifdef FEAT_EVAL
4227 && ccline.cmdfirstc != '>' && ccline.cmdfirstc != '='
4228 && !ccline.input_fn
4229 #endif
4230 )
4231 {
4232 xp->xp_context = EXPAND_NOTHING;
4233 return;
4234 }
4235 set_cmd_context(xp, ccline.cmdbuff, ccline.cmdlen, ccline.cmdpos);
4236 }
4237
4238 void
4239 set_cmd_context(xp, str, len, col)
4240 expand_T *xp;
4241 char_u *str; /* start of command line */
4242 int len; /* length of command line (excl. NUL) */
4243 int col; /* position of cursor */
4244 {
4245 int old_char = NUL;
4246 char_u *nextcomm;
4247
4248 /*
4249 * Avoid a UMR warning from Purify, only save the character if it has been
4250 * written before.
4251 */
4252 if (col < len)
4253 old_char = str[col];
4254 str[col] = NUL;
4255 nextcomm = str;
4256
4257 #ifdef FEAT_EVAL
4258 if (ccline.cmdfirstc == '=')
4259 {
4260 # ifdef FEAT_CMDL_COMPL
4261 /* pass CMD_SIZE because there is no real command */
4262 set_context_for_expression(xp, str, CMD_SIZE);
4263 # endif
4264 }
4265 else if (ccline.input_fn)
4266 {
4267 xp->xp_context = ccline.xp_context;
4268 xp->xp_pattern = ccline.cmdbuff;
4269 # if defined(FEAT_USR_CMDS) && defined(FEAT_CMDL_COMPL)
4270 xp->xp_arg = ccline.xp_arg;
4271 # endif
4272 }
4273 else
4274 #endif
4275 while (nextcomm != NULL)
4276 nextcomm = set_one_cmd_context(xp, nextcomm);
4277
4278 str[col] = old_char;
4279 }
4280
4281 /*
4282 * Expand the command line "str" from context "xp".
4283 * "xp" must have been set by set_cmd_context().
4284 * xp->xp_pattern points into "str", to where the text that is to be expanded
4285 * starts.
4286 * Returns EXPAND_UNSUCCESSFUL when there is something illegal before the
4287 * cursor.
4288 * Returns EXPAND_NOTHING when there is nothing to expand, might insert the
4289 * key that triggered expansion literally.
4290 * Returns EXPAND_OK otherwise.
4291 */
4292 int
4293 expand_cmdline(xp, str, col, matchcount, matches)
4294 expand_T *xp;
4295 char_u *str; /* start of command line */
4296 int col; /* position of cursor */
4297 int *matchcount; /* return: nr of matches */
4298 char_u ***matches; /* return: array of pointers to matches */
4299 {
4300 char_u *file_str = NULL;
4301
4302 if (xp->xp_context == EXPAND_UNSUCCESSFUL)
4303 {
4304 beep_flush();
4305 return EXPAND_UNSUCCESSFUL; /* Something illegal on command line */
4306 }
4307 if (xp->xp_context == EXPAND_NOTHING)
4308 {
4309 /* Caller can use the character as a normal char instead */
4310 return EXPAND_NOTHING;
4311 }
4312
4313 /* add star to file name, or convert to regexp if not exp. files. */
4314 file_str = addstar(xp->xp_pattern,
4315 (int)(str + col - xp->xp_pattern), xp->xp_context);
4316 if (file_str == NULL)
4317 return EXPAND_UNSUCCESSFUL;
4318
4319 /* find all files that match the description */
4320 if (ExpandFromContext(xp, file_str, matchcount, matches,
4321 WILD_ADD_SLASH|WILD_SILENT) == FAIL)
4322 {
4323 *matchcount = 0;
4324 *matches = NULL;
4325 }
4326 vim_free(file_str);
4327
4328 return EXPAND_OK;
4329 }
4330
4331 #ifdef FEAT_MULTI_LANG
4332 /*
4333 * Cleanup matches for help tags: remove "@en" if "en" is the only language.
4334 */
4335 static void cleanup_help_tags __ARGS((int num_file, char_u **file));
4336
4337 static void
4338 cleanup_help_tags(num_file, file)
4339 int num_file;
4340 char_u **file;
4341 {
4342 int i, j;
4343 int len;
4344
4345 for (i = 0; i < num_file; ++i)
4346 {
4347 len = (int)STRLEN(file[i]) - 3;
4348 if (len > 0 && STRCMP(file[i] + len, "@en") == 0)
4349 {
4350 /* Sorting on priority means the same item in another language may
4351 * be anywhere. Search all items for a match up to the "@en". */
4352 for (j = 0; j < num_file; ++j)
4353 if (j != i
4354 && (int)STRLEN(file[j]) == len + 3
4355 && STRNCMP(file[i], file[j], len + 1) == 0)
4356 break;
4357 if (j == num_file)
4358 file[i][len] = NUL;
4359 }
4360 }
4361 }
4362 #endif
4363
4364 /*
4365 * Do the expansion based on xp->xp_context and "pat".
4366 */
4367 static int
4368 ExpandFromContext(xp, pat, num_file, file, options)
4369 expand_T *xp;
4370 char_u *pat;
4371 int *num_file;
4372 char_u ***file;
4373 int options;
4374 {
4375 #ifdef FEAT_CMDL_COMPL
4376 regmatch_T regmatch;
4377 #endif
4378 int ret;
4379 int flags;
4380
4381 flags = EW_DIR; /* include directories */
4382 if (options & WILD_LIST_NOTFOUND)
4383 flags |= EW_NOTFOUND;
4384 if (options & WILD_ADD_SLASH)
4385 flags |= EW_ADDSLASH;
4386 if (options & WILD_KEEP_ALL)
4387 flags |= EW_KEEPALL;
4388 if (options & WILD_SILENT)
4389 flags |= EW_SILENT;
4390
4391 if (xp->xp_context == EXPAND_FILES || xp->xp_context == EXPAND_DIRECTORIES)
4392 {
4393 /*
4394 * Expand file or directory names.
4395 */
4396 int free_pat = FALSE;
4397 int i;
4398
4399 /* for ":set path=" and ":set tags=" halve backslashes for escaped
4400 * space */
4401 if (xp->xp_backslash != XP_BS_NONE)
4402 {
4403 free_pat = TRUE;
4404 pat = vim_strsave(pat);
4405 for (i = 0; pat[i]; ++i)
4406 if (pat[i] == '\\')
4407 {
4408 if (xp->xp_backslash == XP_BS_THREE
4409 && pat[i + 1] == '\\'
4410 && pat[i + 2] == '\\'
4411 && pat[i + 3] == ' ')
4412 STRMOVE(pat + i, pat + i + 3);
4413 if (xp->xp_backslash == XP_BS_ONE
4414 && pat[i + 1] == ' ')
4415 STRMOVE(pat + i, pat + i + 1);
4416 }
4417 }
4418
4419 if (xp->xp_context == EXPAND_FILES)
4420 flags |= EW_FILE;
4421 else
4422 flags = (flags | EW_DIR) & ~EW_FILE;
4423 ret = expand_wildcards(1, &pat, num_file, file, flags);
4424 if (free_pat)
4425 vim_free(pat);
4426 return ret;
4427 }
4428
4429 *file = (char_u **)"";
4430 *num_file = 0;
4431 if (xp->xp_context == EXPAND_HELP)
4432 {
4433 /* With an empty argument we would get all the help tags, which is
4434 * very slow. Get matches for "help" instead. */
4435 if (find_help_tags(*pat == NUL ? (char_u *)"help" : pat,
4436 num_file, file, FALSE) == OK)
4437 {
4438 #ifdef FEAT_MULTI_LANG
4439 cleanup_help_tags(*num_file, *file);
4440 #endif
4441 return OK;
4442 }
4443 return FAIL;
4444 }
4445
4446 #ifndef FEAT_CMDL_COMPL
4447 return FAIL;
4448 #else
4449 if (xp->xp_context == EXPAND_SHELLCMD)
4450 return expand_shellcmd(pat, num_file, file, flags);
4451 if (xp->xp_context == EXPAND_OLD_SETTING)
4452 return ExpandOldSetting(num_file, file);
4453 if (xp->xp_context == EXPAND_BUFFERS)
4454 return ExpandBufnames(pat, num_file, file, options);
4455 if (xp->xp_context == EXPAND_TAGS
4456 || xp->xp_context == EXPAND_TAGS_LISTFILES)
4457 return expand_tags(xp->xp_context == EXPAND_TAGS, pat, num_file, file);
4458 if (xp->xp_context == EXPAND_COLORS)
4459 return ExpandRTDir(pat, num_file, file, "colors");
4460 if (xp->xp_context == EXPAND_COMPILER)
4461 return ExpandRTDir(pat, num_file, file, "compiler");
4462 # if defined(FEAT_USR_CMDS) && defined(FEAT_EVAL)
4463 if (xp->xp_context == EXPAND_USER_LIST)
4464 return ExpandUserList(xp, num_file, file);
4465 # endif
4466
4467 regmatch.regprog = vim_regcomp(pat, p_magic ? RE_MAGIC : 0);
4468 if (regmatch.regprog == NULL)
4469 return FAIL;
4470
4471 /* set ignore-case according to p_ic, p_scs and pat */
4472 regmatch.rm_ic = ignorecase(pat);
4473
4474 if (xp->xp_context == EXPAND_SETTINGS
4475 || xp->xp_context == EXPAND_BOOL_SETTINGS)
4476 ret = ExpandSettings(xp, &regmatch, num_file, file);
4477 else if (xp->xp_context == EXPAND_MAPPINGS)
4478 ret = ExpandMappings(&regmatch, num_file, file);
4479 # if defined(FEAT_USR_CMDS) && defined(FEAT_EVAL)
4480 else if (xp->xp_context == EXPAND_USER_DEFINED)
4481 ret = ExpandUserDefined(xp, &regmatch, num_file, file);
4482 # endif
4483 else
4484 {
4485 static struct expgen
4486 {
4487 int context;
4488 char_u *((*func)__ARGS((expand_T *, int)));
4489 int ic;
4490 } tab[] =
4491 {
4492 {EXPAND_COMMANDS, get_command_name, FALSE},
4493 #ifdef FEAT_USR_CMDS
4494 {EXPAND_USER_COMMANDS, get_user_commands, FALSE},
4495 {EXPAND_USER_CMD_FLAGS, get_user_cmd_flags, FALSE},
4496 {EXPAND_USER_NARGS, get_user_cmd_nargs, FALSE},
4497 {EXPAND_USER_COMPLETE, get_user_cmd_complete, FALSE},
4498 #endif
4499 #ifdef FEAT_EVAL
4500 {EXPAND_USER_VARS, get_user_var_name, FALSE},
4501 {EXPAND_FUNCTIONS, get_function_name, FALSE},
4502 {EXPAND_USER_FUNC, get_user_func_name, FALSE},
4503 {EXPAND_EXPRESSION, get_expr_name, FALSE},
4504 #endif
4505 #ifdef FEAT_MENU
4506 {EXPAND_MENUS, get_menu_name, FALSE},
4507 {EXPAND_MENUNAMES, get_menu_names, FALSE},
4508 #endif
4509 #ifdef FEAT_SYN_HL
4510 {EXPAND_SYNTAX, get_syntax_name, TRUE},
4511 #endif
4512 {EXPAND_HIGHLIGHT, get_highlight_name, TRUE},
4513 #ifdef FEAT_AUTOCMD
4514 {EXPAND_EVENTS, get_event_name, TRUE},
4515 {EXPAND_AUGROUP, get_augroup_name, TRUE},
4516 #endif
4517 #ifdef FEAT_CSCOPE
4518 {EXPAND_CSCOPE, get_cscope_name, TRUE},
4519 #endif
4520 #ifdef FEAT_SIGNS
4521 {EXPAND_SIGN, get_sign_name, TRUE},
4522 #endif
4523 #if (defined(HAVE_LOCALE_H) || defined(X_LOCALE)) \
4524 && (defined(FEAT_GETTEXT) || defined(FEAT_MBYTE))
4525 {EXPAND_LANGUAGE, get_lang_arg, TRUE},
4526 #endif
4527 {EXPAND_ENV_VARS, get_env_name, TRUE},
4528 };
4529 int i;
4530
4531 /*
4532 * Find a context in the table and call the ExpandGeneric() with the
4533 * right function to do the expansion.
4534 */
4535 ret = FAIL;
4536 for (i = 0; i < (int)(sizeof(tab) / sizeof(struct expgen)); ++i)
4537 if (xp->xp_context == tab[i].context)
4538 {
4539 if (tab[i].ic)
4540 regmatch.rm_ic = TRUE;
4541 ret = ExpandGeneric(xp, &regmatch, num_file, file, tab[i].func);
4542 break;
4543 }
4544 }
4545
4546 vim_free(regmatch.regprog);
4547
4548 return ret;
4549 #endif /* FEAT_CMDL_COMPL */
4550 }
4551
4552 #if defined(FEAT_CMDL_COMPL) || defined(PROTO)
4553 /*
4554 * Expand a list of names.
4555 *
4556 * Generic function for command line completion. It calls a function to
4557 * obtain strings, one by one. The strings are matched against a regexp
4558 * program. Matching strings are copied into an array, which is returned.
4559 *
4560 * Returns OK when no problems encountered, FAIL for error (out of memory).
4561 */
4562 int
4563 ExpandGeneric(xp, regmatch, num_file, file, func)
4564 expand_T *xp;
4565 regmatch_T *regmatch;
4566 int *num_file;
4567 char_u ***file;
4568 char_u *((*func)__ARGS((expand_T *, int)));
4569 /* returns a string from the list */
4570 {
4571 int i;
4572 int count = 0;
4573 int round;
4574 char_u *str;
4575
4576 /* do this loop twice:
4577 * round == 0: count the number of matching names
4578 * round == 1: copy the matching names into allocated memory
4579 */
4580 for (round = 0; round <= 1; ++round)
4581 {
4582 for (i = 0; ; ++i)
4583 {
4584 str = (*func)(xp, i);
4585 if (str == NULL) /* end of list */
4586 break;
4587 if (*str == NUL) /* skip empty strings */
4588 continue;
4589
4590 if (vim_regexec(regmatch, str, (colnr_T)0))
4591 {
4592 if (round)
4593 {
4594 str = vim_strsave_escaped(str, (char_u *)" \t\\.");
4595 (*file)[count] = str;
4596 #ifdef FEAT_MENU
4597 if (func == get_menu_names && str != NULL)
4598 {
4599 /* test for separator added by get_menu_names() */
4600 str += STRLEN(str) - 1;
4601 if (*str == '\001')
4602 *str = '.';
4603 }
4604 #endif
4605 }
4606 ++count;
4607 }
4608 }
4609 if (round == 0)
4610 {
4611 if (count == 0)
4612 return OK;
4613 *num_file = count;
4614 *file = (char_u **)alloc((unsigned)(count * sizeof(char_u *)));
4615 if (*file == NULL)
4616 {
4617 *file = (char_u **)"";
4618 return FAIL;
4619 }
4620 count = 0;
4621 }
4622 }
4623
4624 /* Sort the results. Keep menu's in the specified order. */
4625 if (xp->xp_context != EXPAND_MENUNAMES && xp->xp_context != EXPAND_MENUS)
4626 sort_strings(*file, *num_file);
4627
4628 #ifdef FEAT_CMDL_COMPL
4629 /* Reset the variables used for special highlight names expansion, so that
4630 * they don't show up when getting normal highlight names by ID. */
4631 reset_expand_highlight();
4632 #endif
4633
4634 return OK;
4635 }
4636
4637 /*
4638 * Complete a shell command.
4639 * Returns FAIL or OK;
4640 */
4641 static int
4642 expand_shellcmd(filepat, num_file, file, flagsarg)
4643 char_u *filepat; /* pattern to match with command names */
4644 int *num_file; /* return: number of matches */
4645 char_u ***file; /* return: array with matches */
4646 int flagsarg; /* EW_ flags */
4647 {
4648 char_u *pat;
4649 int i;
4650 char_u *path;
4651 int mustfree = FALSE;
4652 garray_T ga;
4653 char_u *buf = alloc(MAXPATHL);
4654 size_t l;
4655 char_u *s, *e;
4656 int flags = flagsarg;
4657 int ret;
4658
4659 if (buf == NULL)
4660 return FAIL;
4661
4662 /* for ":set path=" and ":set tags=" halve backslashes for escaped
4663 * space */
4664 pat = vim_strsave(filepat);
4665 for (i = 0; pat[i]; ++i)
4666 if (pat[i] == '\\' && pat[i + 1] == ' ')
4667 STRMOVE(pat + i, pat + i + 1);
4668
4669 flags |= EW_FILE | EW_EXEC;
4670
4671 /* For an absolute name we don't use $PATH. */
4672 if (mch_isFullName(pat))
4673 path = (char_u *)" ";
4674 else if ((pat[0] == '.' && (vim_ispathsep(pat[1])
4675 || (pat[1] == '.' && vim_ispathsep(pat[2])))))
4676 path = (char_u *)".";
4677 else
4678 path = vim_getenv((char_u *)"PATH", &mustfree);
4679
4680 /*
4681 * Go over all directories in $PATH. Expand matches in that directory and
4682 * collect them in "ga".
4683 */
4684 ga_init2(&ga, (int)sizeof(char *), 10);
4685 for (s = path; *s != NUL; s = e)
4686 {
4687 if (*s == ' ')
4688 ++s; /* Skip space used for absolute path name. */
4689
4690 #if defined(MSDOS) || defined(MSWIN) || defined(OS2)
4691 e = vim_strchr(s, ';');
4692 #else
4693 e = vim_strchr(s, ':');
4694 #endif
4695 if (e == NULL)
4696 e = s + STRLEN(s);
4697
4698 l = e - s;
4699 if (l > MAXPATHL - 5)
4700 break;
4701 vim_strncpy(buf, s, l);
4702 add_pathsep(buf);
4703 l = STRLEN(buf);
4704 vim_strncpy(buf + l, pat, MAXPATHL - 1 - l);
4705
4706 /* Expand matches in one directory of $PATH. */
4707 ret = expand_wildcards(1, &buf, num_file, file, flags);
4708 if (ret == OK)
4709 {
4710 if (ga_grow(&ga, *num_file) == FAIL)
4711 FreeWild(*num_file, *file);
4712 else
4713 {
4714 for (i = 0; i < *num_file; ++i)
4715 {
4716 s = (*file)[i];
4717 if (STRLEN(s) > l)
4718 {
4719 /* Remove the path again. */
4720 STRMOVE(s, s + l);
4721 ((char_u **)ga.ga_data)[ga.ga_len++] = s;
4722 }
4723 else
4724 vim_free(s);
4725 }
4726 vim_free(*file);
4727 }
4728 }
4729 if (*e != NUL)
4730 ++e;
4731 }
4732 *file = ga.ga_data;
4733 *num_file = ga.ga_len;
4734
4735 vim_free(buf);
4736 vim_free(pat);
4737 if (mustfree)
4738 vim_free(path);
4739 return OK;
4740 }
4741
4742
4743 # if defined(FEAT_USR_CMDS) && defined(FEAT_EVAL)
4744 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));
4745
4746 /*
4747 * Call "user_expand_func()" to invoke a user defined VimL function and return
4748 * the result (either a string or a List).
4749 */
4750 static void *
4751 call_user_expand_func(user_expand_func, xp, num_file, file)
4752 void *(*user_expand_func) __ARGS((char_u *, int, char_u **, int));
4753 expand_T *xp;
4754 int *num_file;
4755 char_u ***file;
4756 {
4757 char_u keep;
4758 char_u num[50];
4759 char_u *args[3];
4760 int save_current_SID = current_SID;
4761 void *ret;
4762 struct cmdline_info save_ccline;
4763
4764 if (xp->xp_arg == NULL || xp->xp_arg[0] == '\0')
4765 return NULL;
4766 *num_file = 0;
4767 *file = NULL;
4768
4769 if (ccline.cmdbuff == NULL)
4770 {
4771 /* Completion from Insert mode, pass fake arguments. */
4772 keep = 0;
4773 sprintf((char *)num, "%d", (int)STRLEN(xp->xp_pattern));
4774 args[1] = xp->xp_pattern;
4775 }
4776 else
4777 {
4778 /* Completion on the command line, pass real arguments. */
4779 keep = ccline.cmdbuff[ccline.cmdlen];
4780 ccline.cmdbuff[ccline.cmdlen] = 0;
4781 sprintf((char *)num, "%d", ccline.cmdpos);
4782 args[1] = ccline.cmdbuff;
4783 }
4784 args[0] = xp->xp_pattern;
4785 args[2] = num;
4786
4787 /* Save the cmdline, we don't know what the function may do. */
4788 save_ccline = ccline;
4789 ccline.cmdbuff = NULL;
4790 ccline.cmdprompt = NULL;
4791 current_SID = xp->xp_scriptID;
4792
4793 ret = user_expand_func(xp->xp_arg, 3, args, FALSE);
4794
4795 ccline = save_ccline;
4796 current_SID = save_current_SID;
4797 if (ccline.cmdbuff != NULL)
4798 ccline.cmdbuff[ccline.cmdlen] = keep;
4799
4800 return ret;
4801 }
4802
4803 /*
4804 * Expand names with a function defined by the user.
4805 */
4806 static int
4807 ExpandUserDefined(xp, regmatch, num_file, file)
4808 expand_T *xp;
4809 regmatch_T *regmatch;
4810 int *num_file;
4811 char_u ***file;
4812 {
4813 char_u *retstr;
4814 char_u *s;
4815 char_u *e;
4816 char_u keep;
4817 garray_T ga;
4818
4819 retstr = call_user_expand_func(call_func_retstr, xp, num_file, file);
4820 if (retstr == NULL)
4821 return FAIL;
4822
4823 ga_init2(&ga, (int)sizeof(char *), 3);
4824 for (s = retstr; *s != NUL; s = e)
4825 {
4826 e = vim_strchr(s, '\n');
4827 if (e == NULL)
4828 e = s + STRLEN(s);
4829 keep = *e;
4830 *e = 0;
4831
4832 if (xp->xp_pattern[0] && vim_regexec(regmatch, s, (colnr_T)0) == 0)
4833 {
4834 *e = keep;
4835 if (*e != NUL)
4836 ++e;
4837 continue;
4838 }
4839
4840 if (ga_grow(&ga, 1) == FAIL)
4841 break;
4842
4843 ((char_u **)ga.ga_data)[ga.ga_len] = vim_strnsave(s, (int)(e - s));
4844 ++ga.ga_len;
4845
4846 *e = keep;
4847 if (*e != NUL)
4848 ++e;
4849 }
4850 vim_free(retstr);
4851 *file = ga.ga_data;
4852 *num_file = ga.ga_len;
4853 return OK;
4854 }
4855
4856 /*
4857 * Expand names with a list returned by a function defined by the user.
4858 */
4859 static int
4860 ExpandUserList(xp, num_file, file)
4861 expand_T *xp;
4862 int *num_file;
4863 char_u ***file;
4864 {
4865 list_T *retlist;
4866 listitem_T *li;
4867 garray_T ga;
4868
4869 retlist = call_user_expand_func(call_func_retlist, xp, num_file, file);
4870 if (retlist == NULL)
4871 return FAIL;
4872
4873 ga_init2(&ga, (int)sizeof(char *), 3);
4874 /* Loop over the items in the list. */
4875 for (li = retlist->lv_first; li != NULL; li = li->li_next)
4876 {
4877 if (li->li_tv.v_type != VAR_STRING || li->li_tv.vval.v_string == NULL)
4878 continue; /* Skip non-string items and empty strings */
4879
4880 if (ga_grow(&ga, 1) == FAIL)
4881 break;
4882
4883 ((char_u **)ga.ga_data)[ga.ga_len] =
4884 vim_strsave(li->li_tv.vval.v_string);
4885 ++ga.ga_len;
4886 }
4887 list_unref(retlist);
4888
4889 *file = ga.ga_data;
4890 *num_file = ga.ga_len;
4891 return OK;
4892 }
4893 #endif
4894
4895 /*
4896 * Expand color scheme names: 'runtimepath'/colors/{pat}.vim
4897 * or compiler names.
4898 */
4899 static int
4900 ExpandRTDir(pat, num_file, file, dirname)
4901 char_u *pat;
4902 int *num_file;
4903 char_u ***file;
4904 char *dirname; /* "colors" or "compiler" */
4905 {
4906 char_u *all;
4907 char_u *s;
4908 char_u *e;
4909 garray_T ga;
4910
4911 *num_file = 0;
4912 *file = NULL;
4913 s = alloc((unsigned)(STRLEN(pat) + STRLEN(dirname) + 7));
4914 if (s == NULL)
4915 return FAIL;
4916 sprintf((char *)s, "%s/%s*.vim", dirname, pat);
4917 all = globpath(p_rtp, s, 0);
4918 vim_free(s);
4919 if (all == NULL)
4920 return FAIL;
4921
4922 ga_init2(&ga, (int)sizeof(char *), 3);
4923 for (s = all; *s != NUL; s = e)
4924 {
4925 e = vim_strchr(s, '\n');
4926 if (e == NULL)
4927 e = s + STRLEN(s);
4928 if (ga_grow(&ga, 1) == FAIL)
4929 break;
4930 if (e - 4 > s && STRNICMP(e - 4, ".vim", 4) == 0)
4931 {
4932 for (s = e - 4; s > all; mb_ptr_back(all, s))
4933 if (*s == '\n' || vim_ispathsep(*s))
4934 break;
4935 ++s;
4936 ((char_u **)ga.ga_data)[ga.ga_len] =
4937 vim_strnsave(s, (int)(e - s - 4));
4938 ++ga.ga_len;
4939 }
4940 if (*e != NUL)
4941 ++e;
4942 }
4943 vim_free(all);
4944 *file = ga.ga_data;
4945 *num_file = ga.ga_len;
4946 return OK;
4947 }
4948
4949 #endif
4950
4951 #if defined(FEAT_CMDL_COMPL) || defined(FEAT_EVAL) || defined(PROTO)
4952 /*
4953 * Expand "file" for all comma-separated directories in "path".
4954 * Returns an allocated string with all matches concatenated, separated by
4955 * newlines. Returns NULL for an error or no matches.
4956 */
4957 char_u *
4958 globpath(path, file, expand_options)
4959 char_u *path;
4960 char_u *file;
4961 int expand_options;
4962 {
4963 expand_T xpc;
4964 char_u *buf;
4965 garray_T ga;
4966 int i;
4967 int len;
4968 int num_p;
4969 char_u **p;
4970 char_u *cur = NULL;
4971
4972 buf = alloc(MAXPATHL);
4973 if (buf == NULL)
4974 return NULL;
4975
4976 ExpandInit(&xpc);
4977 xpc.xp_context = EXPAND_FILES;
4978
4979 ga_init2(&ga, 1, 100);
4980
4981 /* Loop over all entries in {path}. */
4982 while (*path != NUL)
4983 {
4984 /* Copy one item of the path to buf[] and concatenate the file name. */
4985 copy_option_part(&path, buf, MAXPATHL, ",");
4986 if (STRLEN(buf) + STRLEN(file) + 2 < MAXPATHL)
4987 {
4988 add_pathsep(buf);
4989 STRCAT(buf, file);
4990 if (ExpandFromContext(&xpc, buf, &num_p, &p,
4991 WILD_SILENT|expand_options) != FAIL && num_p > 0)
4992 {
4993 ExpandEscape(&xpc, buf, num_p, p, WILD_SILENT|expand_options);
4994 for (len = 0, i = 0; i < num_p; ++i)
4995 len += (int)STRLEN(p[i]) + 1;
4996
4997 /* Concatenate new results to previous ones. */
4998 if (ga_grow(&ga, len) == OK)
4999 {
5000 cur = (char_u *)ga.ga_data + ga.ga_len;
5001 for (i = 0; i < num_p; ++i)
5002 {
5003 STRCPY(cur, p[i]);
5004 cur += STRLEN(p[i]);
5005 *cur++ = '\n';
5006 }
5007 ga.ga_len += len;
5008 }
5009 FreeWild(num_p, p);
5010 }
5011 }
5012 }
5013 if (cur != NULL)
5014 *--cur = 0; /* Replace trailing newline with NUL */
5015
5016 vim_free(buf);
5017 return (char_u *)ga.ga_data;
5018 }
5019
5020 #endif
5021
5022 #if defined(FEAT_CMDHIST) || defined(PROTO)
5023
5024 /*********************************
5025 * Command line history stuff *
5026 *********************************/
5027
5028 /*
5029 * Translate a history character to the associated type number.
5030 */
5031 static int
5032 hist_char2type(c)
5033 int c;
5034 {
5035 if (c == ':')
5036 return HIST_CMD;
5037 if (c == '=')
5038 return HIST_EXPR;
5039 if (c == '@')
5040 return HIST_INPUT;
5041 if (c == '>')
5042 return HIST_DEBUG;
5043 return HIST_SEARCH; /* must be '?' or '/' */
5044 }
5045
5046 /*
5047 * Table of history names.
5048 * These names are used in :history and various hist...() functions.
5049 * It is sufficient to give the significant prefix of a history name.
5050 */
5051
5052 static char *(history_names[]) =
5053 {
5054 "cmd",
5055 "search",
5056 "expr",
5057 "input",
5058 "debug",
5059 NULL
5060 };
5061
5062 /*
5063 * init_history() - Initialize the command line history.
5064 * Also used to re-allocate the history when the size changes.
5065 */
5066 void
5067 init_history()
5068 {
5069 int newlen; /* new length of history table */
5070 histentry_T *temp;
5071 int i;
5072 int j;
5073 int type;
5074
5075 /*
5076 * If size of history table changed, reallocate it
5077 */
5078 newlen = (int)p_hi;
5079 if (newlen != hislen) /* history length changed */
5080 {
5081 for (type = 0; type < HIST_COUNT; ++type) /* adjust the tables */
5082 {
5083 if (newlen)
5084 {
5085 temp = (histentry_T *)lalloc(
5086 (long_u)(newlen * sizeof(histentry_T)), TRUE);
5087 if (temp == NULL) /* out of memory! */
5088 {
5089 if (type == 0) /* first one: just keep the old length */
5090 {
5091 newlen = hislen;
5092 break;
5093 }
5094 /* Already changed one table, now we can only have zero
5095 * length for all tables. */
5096 newlen = 0;
5097 type = -1;
5098 continue;
5099 }
5100 }
5101 else
5102 temp = NULL;
5103 if (newlen == 0 || temp != NULL)
5104 {
5105 if (hisidx[type] < 0) /* there are no entries yet */
5106 {
5107 for (i = 0; i < newlen; ++i)
5108 {
5109 temp[i].hisnum = 0;
5110 temp[i].hisstr = NULL;
5111 }
5112 }
5113 else if (newlen > hislen) /* array becomes bigger */
5114 {
5115 for (i = 0; i <= hisidx[type]; ++i)
5116 temp[i] = history[type][i];
5117 j = i;
5118 for ( ; i <= newlen - (hislen - hisidx[type]); ++i)
5119 {
5120 temp[i].hisnum = 0;
5121 temp[i].hisstr = NULL;
5122 }
5123 for ( ; j < hislen; ++i, ++j)
5124 temp[i] = history[type][j];
5125 }
5126 else /* array becomes smaller or 0 */
5127 {
5128 j = hisidx[type];
5129 for (i = newlen - 1; ; --i)
5130 {
5131 if (i >= 0) /* copy newest entries */
5132 temp[i] = history[type][j];
5133 else /* remove older entries */
5134 vim_free(history[type][j].hisstr);
5135 if (--j < 0)
5136 j = hislen - 1;
5137 if (j == hisidx[type])
5138 break;
5139 }
5140 hisidx[type] = newlen - 1;
5141 }
5142 vim_free(history[type]);
5143 history[type] = temp;
5144 }
5145 }
5146 hislen = newlen;
5147 }
5148 }
5149
5150 /*
5151 * Check if command line 'str' is already in history.
5152 * If 'move_to_front' is TRUE, matching entry is moved to end of history.
5153 */
5154 static int
5155 in_history(type, str, move_to_front)
5156 int type;
5157 char_u *str;
5158 int move_to_front; /* Move the entry to the front if it exists */
5159 {
5160 int i;
5161 int last_i = -1;
5162
5163 if (hisidx[type] < 0)
5164 return FALSE;
5165 i = hisidx[type];
5166 do
5167 {
5168 if (history[type][i].hisstr == NULL)
5169 return FALSE;
5170 if (STRCMP(str, history[type][i].hisstr) == 0)
5171 {
5172 if (!move_to_front)
5173 return TRUE;
5174 last_i = i;
5175 break;
5176 }
5177 if (--i < 0)
5178 i = hislen - 1;
5179 } while (i != hisidx[type]);
5180
5181 if (last_i >= 0)
5182 {
5183 str = history[type][i].hisstr;
5184 while (i != hisidx[type])
5185 {
5186 if (++i >= hislen)
5187 i = 0;
5188 history[type][last_i] = history[type][i];
5189 last_i = i;
5190 }
5191 history[type][i].hisstr = str;
5192 history[type][i].hisnum = ++hisnum[type];
5193 return TRUE;
5194 }
5195 return FALSE;
5196 }
5197
5198 /*
5199 * Convert history name (from table above) to its HIST_ equivalent.
5200 * When "name" is empty, return "cmd" history.
5201 * Returns -1 for unknown history name.
5202 */
5203 int
5204 get_histtype(name)
5205 char_u *name;
5206 {
5207 int i;
5208 int len = (int)STRLEN(name);
5209
5210 /* No argument: use current history. */
5211 if (len == 0)
5212 return hist_char2type(ccline.cmdfirstc);
5213
5214 for (i = 0; history_names[i] != NULL; ++i)
5215 if (STRNICMP(name, history_names[i], len) == 0)
5216 return i;
5217
5218 if (vim_strchr((char_u *)":=@>?/", name[0]) != NULL && name[1] == NUL)
5219 return hist_char2type(name[0]);
5220
5221 return -1;
5222 }
5223
5224 static int last_maptick = -1; /* last seen maptick */
5225
5226 /*
5227 * Add the given string to the given history. If the string is already in the
5228 * history then it is moved to the front. "histype" may be one of he HIST_
5229 * values.
5230 */
5231 void
5232 add_to_history(histype, new_entry, in_map, sep)
5233 int histype;
5234 char_u *new_entry;
5235 int in_map; /* consider maptick when inside a mapping */
5236 int sep; /* separator character used (search hist) */
5237 {
5238 histentry_T *hisptr;
5239 int len;
5240
5241 if (hislen == 0) /* no history */
5242 return;
5243
5244 /*
5245 * Searches inside the same mapping overwrite each other, so that only
5246 * the last line is kept. Be careful not to remove a line that was moved
5247 * down, only lines that were added.
5248 */
5249 if (histype == HIST_SEARCH && in_map)
5250 {
5251 if (maptick == last_maptick)
5252 {
5253 /* Current line is from the same mapping, remove it */
5254 hisptr = &history[HIST_SEARCH][hisidx[HIST_SEARCH]];
5255 vim_free(hisptr->hisstr);
5256 hisptr->hisstr = NULL;
5257 hisptr->hisnum = 0;
5258 --hisnum[histype];
5259 if (--hisidx[HIST_SEARCH] < 0)
5260 hisidx[HIST_SEARCH] = hislen - 1;
5261 }
5262 last_maptick = -1;
5263 }
5264 if (!in_history(histype, new_entry, TRUE))
5265 {
5266 if (++hisidx[histype] == hislen)
5267 hisidx[histype] = 0;
5268 hisptr = &history[histype][hisidx[histype]];
5269 vim_free(hisptr->hisstr);
5270
5271 /* Store the separator after the NUL of the string. */
5272 len = (int)STRLEN(new_entry);
5273 hisptr->hisstr = vim_strnsave(new_entry, len + 2);
5274 if (hisptr->hisstr != NULL)
5275 hisptr->hisstr[len + 1] = sep;
5276
5277 hisptr->hisnum = ++hisnum[histype];
5278 if (histype == HIST_SEARCH && in_map)
5279 last_maptick = maptick;
5280 }
5281 }
5282
5283 #if defined(FEAT_EVAL) || defined(PROTO)
5284
5285 /*
5286 * Get identifier of newest history entry.
5287 * "histype" may be one of the HIST_ values.
5288 */
5289 int
5290 get_history_idx(histype)
5291 int histype;
5292 {
5293 if (hislen == 0 || histype < 0 || histype >= HIST_COUNT
5294 || hisidx[histype] < 0)
5295 return -1;
5296
5297 return history[histype][hisidx[histype]].hisnum;
5298 }
5299
5300 static struct cmdline_info *get_ccline_ptr __ARGS((void));
5301
5302 /*
5303 * Get pointer to the command line info to use. cmdline_paste() may clear
5304 * ccline and put the previous value in prev_ccline.
5305 */
5306 static struct cmdline_info *
5307 get_ccline_ptr()
5308 {
5309 if ((State & CMDLINE) == 0)
5310 return NULL;
5311 if (ccline.cmdbuff != NULL)
5312 return &ccline;
5313 if (prev_ccline_used && prev_ccline.cmdbuff != NULL)
5314 return &prev_ccline;
5315 return NULL;
5316 }
5317
5318 /*
5319 * Get the current command line in allocated memory.
5320 * Only works when the command line is being edited.
5321 * Returns NULL when something is wrong.
5322 */
5323 char_u *
5324 get_cmdline_str()
5325 {
5326 struct cmdline_info *p = get_ccline_ptr();
5327
5328 if (p == NULL)
5329 return NULL;
5330 return vim_strnsave(p->cmdbuff, p->cmdlen);
5331 }
5332
5333 /*
5334 * Get the current command line position, counted in bytes.
5335 * Zero is the first position.
5336 * Only works when the command line is being edited.
5337 * Returns -1 when something is wrong.
5338 */
5339 int
5340 get_cmdline_pos()
5341 {
5342 struct cmdline_info *p = get_ccline_ptr();
5343
5344 if (p == NULL)
5345 return -1;
5346 return p->cmdpos;
5347 }
5348
5349 /*
5350 * Set the command line byte position to "pos". Zero is the first position.
5351 * Only works when the command line is being edited.
5352 * Returns 1 when failed, 0 when OK.
5353 */
5354 int
5355 set_cmdline_pos(pos)
5356 int pos;
5357 {
5358 struct cmdline_info *p = get_ccline_ptr();
5359
5360 if (p == NULL)
5361 return 1;
5362
5363 /* The position is not set directly but after CTRL-\ e or CTRL-R = has
5364 * changed the command line. */
5365 if (pos < 0)
5366 new_cmdpos = 0;
5367 else
5368 new_cmdpos = pos;
5369 return 0;
5370 }
5371
5372 /*
5373 * Get the current command-line type.
5374 * Returns ':' or '/' or '?' or '@' or '>' or '-'
5375 * Only works when the command line is being edited.
5376 * Returns NUL when something is wrong.
5377 */
5378 int
5379 get_cmdline_type()
5380 {
5381 struct cmdline_info *p = get_ccline_ptr();
5382
5383 if (p == NULL)
5384 return NUL;
5385 if (p->cmdfirstc == NUL)
5386 return (p->input_fn) ? '@' : '-';
5387 return p->cmdfirstc;
5388 }
5389
5390 /*
5391 * Calculate history index from a number:
5392 * num > 0: seen as identifying number of a history entry
5393 * num < 0: relative position in history wrt newest entry
5394 * "histype" may be one of the HIST_ values.
5395 */
5396 static int
5397 calc_hist_idx(histype, num)
5398 int histype;
5399 int num;
5400 {
5401 int i;
5402 histentry_T *hist;
5403 int wrapped = FALSE;
5404
5405 if (hislen == 0 || histype < 0 || histype >= HIST_COUNT
5406 || (i = hisidx[histype]) < 0 || num == 0)
5407 return -1;
5408
5409 hist = history[histype];
5410 if (num > 0)
5411 {
5412 while (hist[i].hisnum > num)
5413 if (--i < 0)
5414 {
5415 if (wrapped)
5416 break;
5417 i += hislen;
5418 wrapped = TRUE;
5419 }
5420 if (hist[i].hisnum == num && hist[i].hisstr != NULL)
5421 return i;
5422 }
5423 else if (-num <= hislen)
5424 {
5425 i += num + 1;
5426 if (i < 0)
5427 i += hislen;
5428 if (hist[i].hisstr != NULL)
5429 return i;
5430 }
5431 return -1;
5432 }
5433
5434 /*
5435 * Get a history entry by its index.
5436 * "histype" may be one of the HIST_ values.
5437 */
5438 char_u *
5439 get_history_entry(histype, idx)
5440 int histype;
5441 int idx;
5442 {
5443 idx = calc_hist_idx(histype, idx);
5444 if (idx >= 0)
5445 return history[histype][idx].hisstr;
5446 else
5447 return (char_u *)"";
5448 }
5449
5450 /*
5451 * Clear all entries of a history.
5452 * "histype" may be one of the HIST_ values.
5453 */
5454 int
5455 clr_history(histype)
5456 int histype;
5457 {
5458 int i;
5459 histentry_T *hisptr;
5460
5461 if (hislen != 0 && histype >= 0 && histype < HIST_COUNT)
5462 {
5463 hisptr = history[histype];
5464 for (i = hislen; i--;)
5465 {
5466 vim_free(hisptr->hisstr);
5467 hisptr->hisnum = 0;
5468 hisptr++->hisstr = NULL;
5469 }
5470 hisidx[histype] = -1; /* mark history as cleared */
5471 hisnum[histype] = 0; /* reset identifier counter */
5472 return OK;
5473 }
5474 return FAIL;
5475 }
5476
5477 /*
5478 * Remove all entries matching {str} from a history.
5479 * "histype" may be one of the HIST_ values.
5480 */
5481 int
5482 del_history_entry(histype, str)
5483 int histype;
5484 char_u *str;
5485 {
5486 regmatch_T regmatch;
5487 histentry_T *hisptr;
5488 int idx;
5489 int i;
5490 int last;
5491 int found = FALSE;
5492
5493 regmatch.regprog = NULL;
5494 regmatch.rm_ic = FALSE; /* always match case */
5495 if (hislen != 0
5496 && histype >= 0
5497 && histype < HIST_COUNT
5498 && *str != NUL
5499 && (idx = hisidx[histype]) >= 0
5500 && (regmatch.regprog = vim_regcomp(str, RE_MAGIC + RE_STRING))
5501 != NULL)
5502 {
5503 i = last = idx;
5504 do
5505 {
5506 hisptr = &history[histype][i];
5507 if (hisptr->hisstr == NULL)
5508 break;
5509 if (vim_regexec(&regmatch, hisptr->hisstr, (colnr_T)0))
5510 {
5511 found = TRUE;
5512 vim_free(hisptr->hisstr);
5513 hisptr->hisstr = NULL;
5514 hisptr->hisnum = 0;
5515 }
5516 else
5517 {
5518 if (i != last)
5519 {
5520 history[histype][last] = *hisptr;
5521 hisptr->hisstr = NULL;
5522 hisptr->hisnum = 0;
5523 }
5524 if (--last < 0)
5525 last += hislen;
5526 }
5527 if (--i < 0)
5528 i += hislen;
5529 } while (i != idx);
5530 if (history[histype][idx].hisstr == NULL)
5531 hisidx[histype] = -1;
5532 }
5533 vim_free(regmatch.regprog);
5534 return found;
5535 }
5536
5537 /*
5538 * Remove an indexed entry from a history.
5539 * "histype" may be one of the HIST_ values.
5540 */
5541 int
5542 del_history_idx(histype, idx)
5543 int histype;
5544 int idx;
5545 {
5546 int i, j;
5547
5548 i = calc_hist_idx(histype, idx);
5549 if (i < 0)
5550 return FALSE;
5551 idx = hisidx[histype];
5552 vim_free(history[histype][i].hisstr);
5553
5554 /* When deleting the last added search string in a mapping, reset
5555 * last_maptick, so that the last added search string isn't deleted again.
5556 */
5557 if (histype == HIST_SEARCH && maptick == last_maptick && i == idx)
5558 last_maptick = -1;
5559
5560 while (i != idx)
5561 {
5562 j = (i + 1) % hislen;
5563 history[histype][i] = history[histype][j];
5564 i = j;
5565 }
5566 history[histype][i].hisstr = NULL;
5567 history[histype][i].hisnum = 0;
5568 if (--i < 0)
5569 i += hislen;
5570 hisidx[histype] = i;
5571 return TRUE;
5572 }
5573
5574 #endif /* FEAT_EVAL */
5575
5576 #if defined(FEAT_CRYPT) || defined(PROTO)
5577 /*
5578 * Very specific function to remove the value in ":set key=val" from the
5579 * history.
5580 */
5581 void
5582 remove_key_from_history()
5583 {
5584 char_u *p;
5585 int i;
5586
5587 i = hisidx[HIST_CMD];
5588 if (i < 0)
5589 return;
5590 p = history[HIST_CMD][i].hisstr;
5591 if (p != NULL)
5592 for ( ; *p; ++p)
5593 if (STRNCMP(p, "key", 3) == 0 && !isalpha(p[3]))
5594 {
5595 p = vim_strchr(p + 3, '=');
5596 if (p == NULL)
5597 break;
5598 ++p;
5599 for (i = 0; p[i] && !vim_iswhite(p[i]); ++i)
5600 if (p[i] == '\\' && p[i + 1])
5601 ++i;
5602 STRMOVE(p, p + i);
5603 --p;
5604 }
5605 }
5606 #endif
5607
5608 #endif /* FEAT_CMDHIST */
5609
5610 #if defined(FEAT_QUICKFIX) || defined(FEAT_CMDHIST) || defined(PROTO)
5611 /*
5612 * Get indices "num1,num2" that specify a range within a list (not a range of
5613 * text lines in a buffer!) from a string. Used for ":history" and ":clist".
5614 * Returns OK if parsed successfully, otherwise FAIL.
5615 */
5616 int
5617 get_list_range(str, num1, num2)
5618 char_u **str;
5619 int *num1;
5620 int *num2;
5621 {
5622 int len;
5623 int first = FALSE;
5624 long num;
5625
5626 *str = skipwhite(*str);
5627 if (**str == '-' || vim_isdigit(**str)) /* parse "from" part of range */
5628 {
5629 vim_str2nr(*str, NULL, &len, FALSE, FALSE, &num, NULL);
5630 *str += len;
5631 *num1 = (int)num;
5632 first = TRUE;
5633 }
5634 *str = skipwhite(*str);
5635 if (**str == ',') /* parse "to" part of range */
5636 {
5637 *str = skipwhite(*str + 1);
5638 vim_str2nr(*str, NULL, &len, FALSE, FALSE, &num, NULL);
5639 if (len > 0)
5640 {
5641 *num2 = (int)num;
5642 *str = skipwhite(*str + len);
5643 }
5644 else if (!first) /* no number given at all */
5645 return FAIL;
5646 }
5647 else if (first) /* only one number given */
5648 *num2 = *num1;
5649 return OK;
5650 }
5651 #endif
5652
5653 #if defined(FEAT_CMDHIST) || defined(PROTO)
5654 /*
5655 * :history command - print a history
5656 */
5657 void
5658 ex_history(eap)
5659 exarg_T *eap;
5660 {
5661 histentry_T *hist;
5662 int histype1 = HIST_CMD;
5663 int histype2 = HIST_CMD;
5664 int hisidx1 = 1;
5665 int hisidx2 = -1;
5666 int idx;
5667 int i, j, k;
5668 char_u *end;
5669 char_u *arg = eap->arg;
5670
5671 if (hislen == 0)
5672 {
5673 MSG(_("'history' option is zero"));
5674 return;
5675 }
5676
5677 if (!(VIM_ISDIGIT(*arg) || *arg == '-' || *arg == ','))
5678 {
5679 end = arg;
5680 while (ASCII_ISALPHA(*end)
5681 || vim_strchr((char_u *)":=@>/?", *end) != NULL)
5682 end++;
5683 i = *end;
5684 *end = NUL;
5685 histype1 = get_histtype(arg);
5686 if (histype1 == -1)
5687 {
5688 if (STRNICMP(arg, "all", STRLEN(arg)) == 0)
5689 {
5690 histype1 = 0;
5691 histype2 = HIST_COUNT-1;
5692 }
5693 else
5694 {
5695 *end = i;
5696 EMSG(_(e_trailing));
5697 return;
5698 }
5699 }
5700 else
5701 histype2 = histype1;
5702 *end = i;
5703 }
5704 else
5705 end = arg;
5706 if (!get_list_range(&end, &hisidx1, &hisidx2) || *end != NUL)
5707 {
5708 EMSG(_(e_trailing));
5709 return;
5710 }
5711
5712 for (; !got_int && histype1 <= histype2; ++histype1)
5713 {
5714 STRCPY(IObuff, "\n # ");
5715 STRCAT(STRCAT(IObuff, history_names[histype1]), " history");
5716 MSG_PUTS_TITLE(IObuff);
5717 idx = hisidx[histype1];
5718 hist = history[histype1];
5719 j = hisidx1;
5720 k = hisidx2;
5721 if (j < 0)
5722 j = (-j > hislen) ? 0 : hist[(hislen+j+idx+1) % hislen].hisnum;
5723 if (k < 0)
5724 k = (-k > hislen) ? 0 : hist[(hislen+k+idx+1) % hislen].hisnum;
5725 if (idx >= 0 && j <= k)
5726 for (i = idx + 1; !got_int; ++i)
5727 {
5728 if (i == hislen)
5729 i = 0;
5730 if (hist[i].hisstr != NULL
5731 && hist[i].hisnum >= j && hist[i].hisnum <= k)
5732 {
5733 msg_putchar('\n');
5734 sprintf((char *)IObuff, "%c%6d ", i == idx ? '>' : ' ',
5735 hist[i].hisnum);
5736 if (vim_strsize(hist[i].hisstr) > (int)Columns - 10)
5737 trunc_string(hist[i].hisstr, IObuff + STRLEN(IObuff),
5738 (int)Columns - 10);
5739 else
5740 STRCAT(IObuff, hist[i].hisstr);
5741 msg_outtrans(IObuff);
5742 out_flush();
5743 }
5744 if (i == idx)
5745 break;
5746 }
5747 }
5748 }
5749 #endif
5750
5751 #if (defined(FEAT_VIMINFO) && defined(FEAT_CMDHIST)) || defined(PROTO)
5752 static char_u **viminfo_history[HIST_COUNT] = {NULL, NULL, NULL, NULL};
5753 static int viminfo_hisidx[HIST_COUNT] = {0, 0, 0, 0};
5754 static int viminfo_hislen[HIST_COUNT] = {0, 0, 0, 0};
5755 static int viminfo_add_at_front = FALSE;
5756
5757 static int hist_type2char __ARGS((int type, int use_question));
5758
5759 /*
5760 * Translate a history type number to the associated character.
5761 */
5762 static int
5763 hist_type2char(type, use_question)
5764 int type;
5765 int use_question; /* use '?' instead of '/' */
5766 {
5767 if (type == HIST_CMD)
5768 return ':';
5769 if (type == HIST_SEARCH)
5770 {
5771 if (use_question)
5772 return '?';
5773 else
5774 return '/';
5775 }
5776 if (type == HIST_EXPR)
5777 return '=';
5778 return '@';
5779 }
5780
5781 /*
5782 * Prepare for reading the history from the viminfo file.
5783 * This allocates history arrays to store the read history lines.
5784 */
5785 void
5786 prepare_viminfo_history(asklen)
5787 int asklen;
5788 {
5789 int i;
5790 int num;
5791 int type;
5792 int len;
5793
5794 init_history();
5795 viminfo_add_at_front = (asklen != 0);
5796 if (asklen > hislen)
5797 asklen = hislen;
5798
5799 for (type = 0; type < HIST_COUNT; ++type)
5800 {
5801 /*
5802 * Count the number of empty spaces in the history list. If there are
5803 * more spaces available than we request, then fill them up.
5804 */
5805 for (i = 0, num = 0; i < hislen; i++)
5806 if (history[type][i].hisstr == NULL)
5807 num++;
5808 len = asklen;
5809 if (num > len)
5810 len = num;
5811 if (len <= 0)
5812 viminfo_history[type] = NULL;
5813 else
5814 viminfo_history[type] =
5815 (char_u **)lalloc((long_u)(len * sizeof(char_u *)), FALSE);
5816 if (viminfo_history[type] == NULL)
5817 len = 0;
5818 viminfo_hislen[type] = len;
5819 viminfo_hisidx[type] = 0;
5820 }
5821 }
5822
5823 /*
5824 * Accept a line from the viminfo, store it in the history array when it's
5825 * new.
5826 */
5827 int
5828 read_viminfo_history(virp)
5829 vir_T *virp;
5830 {
5831 int type;
5832 long_u len;
5833 char_u *val;
5834 char_u *p;
5835
5836 type = hist_char2type(virp->vir_line[0]);
5837 if (viminfo_hisidx[type] < viminfo_hislen[type])
5838 {
5839 val = viminfo_readstring(virp, 1, TRUE);
5840 if (val != NULL && *val != NUL)
5841 {
5842 if (!in_history(type, val + (type == HIST_SEARCH),
5843 viminfo_add_at_front))
5844 {
5845 /* Need to re-allocate to append the separator byte. */
5846 len = STRLEN(val);
5847 p = lalloc(len + 2, TRUE);
5848 if (p != NULL)
5849 {
5850 if (type == HIST_SEARCH)
5851 {
5852 /* Search entry: Move the separator from the first
5853 * column to after the NUL. */
5854 mch_memmove(p, val + 1, (size_t)len);
5855 p[len] = (*val == ' ' ? NUL : *val);
5856 }
5857 else
5858 {
5859 /* Not a search entry: No separator in the viminfo
5860 * file, add a NUL separator. */
5861 mch_memmove(p, val, (size_t)len + 1);
5862 p[len + 1] = NUL;
5863 }
5864 viminfo_history[type][viminfo_hisidx[type]++] = p;
5865 }
5866 }
5867 }
5868 vim_free(val);
5869 }
5870 return viminfo_readline(virp);
5871 }
5872
5873 void
5874 finish_viminfo_history()
5875 {
5876 int idx;
5877 int i;
5878 int type;
5879
5880 for (type = 0; type < HIST_COUNT; ++type)
5881 {
5882 if (history[type] == NULL)
5883 return;
5884 idx = hisidx[type] + viminfo_hisidx[type];
5885 if (idx >= hislen)
5886 idx -= hislen;
5887 else if (idx < 0)
5888 idx = hislen - 1;
5889 if (viminfo_add_at_front)
5890 hisidx[type] = idx;
5891 else
5892 {
5893 if (hisidx[type] == -1)
5894 hisidx[type] = hislen - 1;
5895 do
5896 {
5897 if (history[type][idx].hisstr != NULL)
5898 break;
5899 if (++idx == hislen)
5900 idx = 0;
5901 } while (idx != hisidx[type]);
5902 if (idx != hisidx[type] && --idx < 0)
5903 idx = hislen - 1;
5904 }
5905 for (i = 0; i < viminfo_hisidx[type]; i++)
5906 {
5907 vim_free(history[type][idx].hisstr);
5908 history[type][idx].hisstr = viminfo_history[type][i];
5909 if (--idx < 0)
5910 idx = hislen - 1;
5911 }
5912 idx += 1;
5913 idx %= hislen;
5914 for (i = 0; i < viminfo_hisidx[type]; i++)
5915 {
5916 history[type][idx++].hisnum = ++hisnum[type];
5917 idx %= hislen;
5918 }
5919 vim_free(viminfo_history[type]);
5920 viminfo_history[type] = NULL;
5921 }
5922 }
5923
5924 void
5925 write_viminfo_history(fp)
5926 FILE *fp;
5927 {
5928 int i;
5929 int type;
5930 int num_saved;
5931 char_u *p;
5932 int c;
5933
5934 init_history();
5935 if (hislen == 0)
5936 return;
5937 for (type = 0; type < HIST_COUNT; ++type)
5938 {
5939 num_saved = get_viminfo_parameter(hist_type2char(type, FALSE));
5940 if (num_saved == 0)
5941 continue;
5942 if (num_saved < 0) /* Use default */
5943 num_saved = hislen;
5944 fprintf(fp, _("\n# %s History (newest to oldest):\n"),
5945 type == HIST_CMD ? _("Command Line") :
5946 type == HIST_SEARCH ? _("Search String") :
5947 type == HIST_EXPR ? _("Expression") :
5948 _("Input Line"));
5949 if (num_saved > hislen)
5950 num_saved = hislen;
5951 i = hisidx[type];
5952 if (i >= 0)
5953 while (num_saved--)
5954 {
5955 p = history[type][i].hisstr;
5956 if (p != NULL)
5957 {
5958 fputc(hist_type2char(type, TRUE), fp);
5959 /* For the search history: put the separator in the second
5960 * column; use a space if there isn't one. */
5961 if (type == HIST_SEARCH)
5962 {
5963 c = p[STRLEN(p) + 1];
5964 putc(c == NUL ? ' ' : c, fp);
5965 }
5966 viminfo_writestring(fp, p);
5967 }
5968 if (--i < 0)
5969 i = hislen - 1;
5970 }
5971 }
5972 }
5973 #endif /* FEAT_VIMINFO */
5974
5975 #if defined(FEAT_FKMAP) || defined(PROTO)
5976 /*
5977 * Write a character at the current cursor+offset position.
5978 * It is directly written into the command buffer block.
5979 */
5980 void
5981 cmd_pchar(c, offset)
5982 int c, offset;
5983 {
5984 if (ccline.cmdpos + offset >= ccline.cmdlen || ccline.cmdpos + offset < 0)
5985 {
5986 EMSG(_("E198: cmd_pchar beyond the command length"));
5987 return;
5988 }
5989 ccline.cmdbuff[ccline.cmdpos + offset] = (char_u)c;
5990 ccline.cmdbuff[ccline.cmdlen] = NUL;
5991 }
5992
5993 int
5994 cmd_gchar(offset)
5995 int offset;
5996 {
5997 if (ccline.cmdpos + offset >= ccline.cmdlen || ccline.cmdpos + offset < 0)
5998 {
5999 /* EMSG(_("cmd_gchar beyond the command length")); */
6000 return NUL;
6001 }
6002 return (int)ccline.cmdbuff[ccline.cmdpos + offset];
6003 }
6004 #endif
6005
6006 #if defined(FEAT_CMDWIN) || defined(PROTO)
6007 /*
6008 * Open a window on the current command line and history. Allow editing in
6009 * the window. Returns when the window is closed.
6010 * Returns:
6011 * CR if the command is to be executed
6012 * Ctrl_C if it is to be abandoned
6013 * K_IGNORE if editing continues
6014 */
6015 static int
6016 ex_window()
6017 {
6018 struct cmdline_info save_ccline;
6019 buf_T *old_curbuf = curbuf;
6020 win_T *old_curwin = curwin;
6021 buf_T *bp;
6022 win_T *wp;
6023 int i;
6024 linenr_T lnum;
6025 int histtype;
6026 garray_T winsizes;
6027 #ifdef FEAT_AUTOCMD
6028 char_u typestr[2];
6029 #endif
6030 int save_restart_edit = restart_edit;
6031 int save_State = State;
6032 int save_exmode = exmode_active;
6033 #ifdef FEAT_RIGHTLEFT
6034 int save_cmdmsg_rl = cmdmsg_rl;
6035 #endif
6036
6037 /* Can't do this recursively. Can't do it when typing a password. */
6038 if (cmdwin_type != 0
6039 # if defined(FEAT_CRYPT) || defined(FEAT_EVAL)
6040 || cmdline_star > 0
6041 # endif
6042 )
6043 {
6044 beep_flush();
6045 return K_IGNORE;
6046 }
6047
6048 /* Save current window sizes. */
6049 win_size_save(&winsizes);
6050
6051 # ifdef FEAT_AUTOCMD
6052 /* Don't execute autocommands while creating the window. */
6053 block_autocmds();
6054 # endif
6055 /* don't use a new tab page */
6056 cmdmod.tab = 0;
6057
6058 /* Create a window for the command-line buffer. */
6059 if (win_split((int)p_cwh, WSP_BOT) == FAIL)
6060 {
6061 beep_flush();
6062 # ifdef FEAT_AUTOCMD
6063 unblock_autocmds();
6064 # endif
6065 return K_IGNORE;
6066 }
6067 cmdwin_type = get_cmdline_type();
6068
6069 /* Create the command-line buffer empty. */
6070 (void)do_ecmd(0, NULL, NULL, NULL, ECMD_ONE, ECMD_HIDE, NULL);
6071 (void)setfname(curbuf, (char_u *)"[Command Line]", NULL, TRUE);
6072 set_option_value((char_u *)"bt", 0L, (char_u *)"nofile", OPT_LOCAL);
6073 set_option_value((char_u *)"swf", 0L, NULL, OPT_LOCAL);
6074 curbuf->b_p_ma = TRUE;
6075 #ifdef FEAT_FOLDING
6076 curwin->w_p_fen = FALSE;
6077 #endif
6078 # ifdef FEAT_RIGHTLEFT
6079 curwin->w_p_rl = cmdmsg_rl;
6080 cmdmsg_rl = FALSE;
6081 # endif
6082 # ifdef FEAT_SCROLLBIND
6083 curwin->w_p_scb = FALSE;
6084 # endif
6085
6086 # ifdef FEAT_AUTOCMD
6087 /* Do execute autocommands for setting the filetype (load syntax). */
6088 unblock_autocmds();
6089 # endif
6090
6091 /* Showing the prompt may have set need_wait_return, reset it. */
6092 need_wait_return = FALSE;
6093
6094 histtype = hist_char2type(cmdwin_type);
6095 if (histtype == HIST_CMD || histtype == HIST_DEBUG)
6096 {
6097 if (p_wc == TAB)
6098 {
6099 add_map((char_u *)"<buffer> <Tab> <C-X><C-V>", INSERT);
6100 add_map((char_u *)"<buffer> <Tab> a<C-X><C-V>", NORMAL);
6101 }
6102 set_option_value((char_u *)"ft", 0L, (char_u *)"vim", OPT_LOCAL);
6103 }
6104
6105 /* Reset 'textwidth' after setting 'filetype' (the Vim filetype plugin
6106 * sets 'textwidth' to 78). */
6107 curbuf->b_p_tw = 0;
6108
6109 /* Fill the buffer with the history. */
6110 init_history();
6111 if (hislen > 0)
6112 {
6113 i = hisidx[histtype];
6114 if (i >= 0)
6115 {
6116 lnum = 0;
6117 do
6118 {
6119 if (++i == hislen)
6120 i = 0;
6121 if (history[histtype][i].hisstr != NULL)
6122 ml_append(lnum++, history[histtype][i].hisstr,
6123 (colnr_T)0, FALSE);
6124 }
6125 while (i != hisidx[histtype]);
6126 }
6127 }
6128
6129 /* Replace the empty last line with the current command-line and put the
6130 * cursor there. */
6131 ml_replace(curbuf->b_ml.ml_line_count, ccline.cmdbuff, TRUE);
6132 curwin->w_cursor.lnum = curbuf->b_ml.ml_line_count;
6133 curwin->w_cursor.col = ccline.cmdpos;
6134 changed_line_abv_curs();
6135 invalidate_botline();
6136 redraw_later(SOME_VALID);
6137
6138 /* Save the command line info, can be used recursively. */
6139 save_ccline = ccline;
6140 ccline.cmdbuff = NULL;
6141 ccline.cmdprompt = NULL;
6142
6143 /* No Ex mode here! */
6144 exmode_active = 0;
6145
6146 State = NORMAL;
6147 # ifdef FEAT_MOUSE
6148 setmouse();
6149 # endif
6150
6151 # ifdef FEAT_AUTOCMD
6152 /* Trigger CmdwinEnter autocommands. */
6153 typestr[0] = cmdwin_type;
6154 typestr[1] = NUL;
6155 apply_autocmds(EVENT_CMDWINENTER, typestr, typestr, FALSE, curbuf);
6156 if (restart_edit != 0) /* autocmd with ":startinsert" */
6157 stuffcharReadbuff(K_NOP);
6158 # endif
6159
6160 i = RedrawingDisabled;
6161 RedrawingDisabled = 0;
6162
6163 /*
6164 * Call the main loop until <CR> or CTRL-C is typed.
6165 */
6166 cmdwin_result = 0;
6167 main_loop(TRUE, FALSE);
6168
6169 RedrawingDisabled = i;
6170
6171 # ifdef FEAT_AUTOCMD
6172 /* Trigger CmdwinLeave autocommands. */
6173 apply_autocmds(EVENT_CMDWINLEAVE, typestr, typestr, FALSE, curbuf);
6174 # endif
6175
6176 /* Restore the command line info. */
6177 ccline = save_ccline;
6178 cmdwin_type = 0;
6179
6180 exmode_active = save_exmode;
6181
6182 /* Safety check: The old window or buffer was deleted: It's a bug when
6183 * this happens! */
6184 if (!win_valid(old_curwin) || !buf_valid(old_curbuf))
6185 {
6186 cmdwin_result = Ctrl_C;
6187 EMSG(_("E199: Active window or buffer deleted"));
6188 }
6189 else
6190 {
6191 # if defined(FEAT_AUTOCMD) && defined(FEAT_EVAL)
6192 /* autocmds may abort script processing */
6193 if (aborting() && cmdwin_result != K_IGNORE)
6194 cmdwin_result = Ctrl_C;
6195 # endif
6196 /* Set the new command line from the cmdline buffer. */
6197 vim_free(ccline.cmdbuff);
6198 if (cmdwin_result == K_XF1 || cmdwin_result == K_XF2) /* :qa[!] typed */
6199 {
6200 char *p = (cmdwin_result == K_XF2) ? "qa" : "qa!";
6201
6202 if (histtype == HIST_CMD)
6203 {
6204 /* Execute the command directly. */
6205 ccline.cmdbuff = vim_strsave((char_u *)p);
6206 cmdwin_result = CAR;
6207 }
6208 else
6209 {
6210 /* First need to cancel what we were doing. */
6211 ccline.cmdbuff = NULL;
6212 stuffcharReadbuff(':');
6213 stuffReadbuff((char_u *)p);
6214 stuffcharReadbuff(CAR);
6215 }
6216 }
6217 else if (cmdwin_result == K_XF2) /* :qa typed */
6218 {
6219 ccline.cmdbuff = vim_strsave((char_u *)"qa");
6220 cmdwin_result = CAR;
6221 }
6222 else
6223 ccline.cmdbuff = vim_strsave(ml_get_curline());
6224 if (ccline.cmdbuff == NULL)
6225 cmdwin_result = Ctrl_C;
6226 else
6227 {
6228 ccline.cmdlen = (int)STRLEN(ccline.cmdbuff);
6229 ccline.cmdbufflen = ccline.cmdlen + 1;
6230 ccline.cmdpos = curwin->w_cursor.col;
6231 if (ccline.cmdpos > ccline.cmdlen)
6232 ccline.cmdpos = ccline.cmdlen;
6233 if (cmdwin_result == K_IGNORE)
6234 {
6235 set_cmdspos_cursor();
6236 redrawcmd();
6237 }
6238 }
6239
6240 # ifdef FEAT_AUTOCMD
6241 /* Don't execute autocommands while deleting the window. */
6242 block_autocmds();
6243 # endif
6244 wp = curwin;
6245 bp = curbuf;
6246 win_goto(old_curwin);
6247 win_close(wp, TRUE);
6248 close_buffer(NULL, bp, DOBUF_WIPE);
6249
6250 /* Restore window sizes. */
6251 win_size_restore(&winsizes);
6252
6253 # ifdef FEAT_AUTOCMD
6254 unblock_autocmds();
6255 # endif
6256 }
6257
6258 ga_clear(&winsizes);
6259 restart_edit = save_restart_edit;
6260 # ifdef FEAT_RIGHTLEFT
6261 cmdmsg_rl = save_cmdmsg_rl;
6262 # endif
6263
6264 State = save_State;
6265 # ifdef FEAT_MOUSE
6266 setmouse();
6267 # endif
6268
6269 return cmdwin_result;
6270 }
6271 #endif /* FEAT_CMDWIN */
6272
6273 /*
6274 * Used for commands that either take a simple command string argument, or:
6275 * cmd << endmarker
6276 * {script}
6277 * endmarker
6278 * Returns a pointer to allocated memory with {script} or NULL.
6279 */
6280 char_u *
6281 script_get(eap, cmd)
6282 exarg_T *eap;
6283 char_u *cmd;
6284 {
6285 char_u *theline;
6286 char *end_pattern = NULL;
6287 char dot[] = ".";
6288 garray_T ga;
6289
6290 if (cmd[0] != '<' || cmd[1] != '<' || eap->getline == NULL)
6291 return NULL;
6292
6293 ga_init2(&ga, 1, 0x400);
6294
6295 if (cmd[2] != NUL)
6296 end_pattern = (char *)skipwhite(cmd + 2);
6297 else
6298 end_pattern = dot;
6299
6300 for (;;)
6301 {
6302 theline = eap->getline(
6303 #ifdef FEAT_EVAL
6304 eap->cstack->cs_looplevel > 0 ? -1 :
6305 #endif
6306 NUL, eap->cookie, 0);
6307
6308 if (theline == NULL || STRCMP(end_pattern, theline) == 0)
6309 {
6310 vim_free(theline);
6311 break;
6312 }
6313
6314 ga_concat(&ga, theline);
6315 ga_append(&ga, '\n');
6316 vim_free(theline);
6317 }
6318 ga_append(&ga, NUL);
6319
6320 return (char_u *)ga.ga_data;
6321 }
Vim for the Mac