2 * Copyright (C) 1996-2000 Michael R. Elkins <me@mutt.org>
3 * Copyright (C) 2000 Edmund Grimley Evans <edmundo@rano.org>
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
25 #include "mutt_menu.h"
26 #include "mutt_curses.h"
32 /* redraw flags for mutt_enter_string() */
35 M_REDRAW_INIT = 1, /* go to end of line and redraw */
36 M_REDRAW_LINE /* redraw entire line */
39 static int my_wcwidth (wchar_t wc)
42 if (IsWPrint (wc) && n > 0)
51 /* combining mark / non-spacing character */
52 #define COMB_CHAR(wc) (IsWPrint (wc) && !wcwidth (wc))
54 static int my_wcswidth (const wchar_t *s, size_t n)
58 w += my_wcwidth (*s++);
62 static int my_addwch (wchar_t wc)
65 if (IsWPrint (wc) && n > 0)
66 return mutt_addwch (wc);
68 return printw ("^%c", ((int)wc + 0x40) & 0x7f);
70 return printw ("\\u%04x", (int)wc);
71 return printw ("\\u%08x", (int)wc);
74 static size_t width_ceiling (const wchar_t *s, size_t n, int w1)
76 const wchar_t *s0 = s;
79 if ((w += my_wcwidth (*s)) > w1)
84 static void my_wcstombs (char *dest, size_t dlen, const wchar_t *src, size_t slen)
89 /* First convert directly into the destination buffer */
90 memset (&st, 0, sizeof (st));
91 for (; slen && dlen >= MB_LEN_MAX; dest += k, dlen -= k, src++, slen--)
92 if ((k = wcrtomb (dest, *src, &st)) == (size_t)(-1))
95 /* If this works, we can stop now */
96 if (dlen >= MB_LEN_MAX) {
97 wcrtomb (dest, 0, &st);
101 /* Otherwise convert any remaining data into a local buffer */
103 char buf[3 * MB_LEN_MAX];
106 for (; slen && p - buf < dlen; p += k, src++, slen--)
107 if ((k = wcrtomb (p, *src, &st)) == (size_t)(-1))
109 p += wcrtomb (p, 0, &st);
111 /* If it fits into the destination buffer, we can stop now */
112 if (p - buf <= dlen) {
113 memcpy (dest, buf, p - buf);
117 /* Otherwise we truncate the string in an ugly fashion */
118 memcpy (dest, buf, dlen);
119 dest[dlen - 1] = '\0'; /* assume original dlen > 0 */
123 size_t my_mbstowcs (wchar_t **pwbuf, size_t *pwbuflen, size_t i, char *buf)
131 wbuf = *pwbuf, wbuflen = *pwbuflen;
132 memset (&st, 0, sizeof (st));
133 for (; (k = mbrtowc (&wc, buf, MB_LEN_MAX, &st)) &&
134 k != (size_t)(-1) && k != (size_t)(-2); buf += k)
139 safe_realloc (&wbuf, wbuflen * sizeof (*wbuf));
143 *pwbuf = wbuf, *pwbuflen = wbuflen;
148 * Replace part of the wchar_t buffer, from FROM to CURPOS, by BUF.
151 static void replace_part (ENTER_STATE *state, size_t from, char *buf)
153 /* Save the suffix */
154 size_t savelen = state->lastchar - state->curpos;
155 wchar_t *savebuf = safe_calloc (savelen, sizeof (wchar_t));
156 memcpy (savebuf, state->wbuf + state->curpos, savelen * sizeof (wchar_t));
158 /* Convert to wide characters */
159 state->curpos = my_mbstowcs (&state->wbuf, &state->wbuflen, from, buf);
161 /* Make space for suffix */
162 if (state->curpos + savelen > state->wbuflen)
164 state->wbuflen = state->curpos + savelen;
165 safe_realloc (&state->wbuf, state->wbuflen * sizeof (wchar_t));
169 memcpy (state->wbuf + state->curpos, savebuf, savelen * sizeof (wchar_t));
170 state->lastchar = state->curpos + savelen;
177 * 1 need to redraw the screen and call me again
178 * 0 if input was given
182 int mutt_enter_string(char *buf, size_t buflen, int y, int x, int flags)
185 ENTER_STATE *es = mutt_new_enter_state ();
186 rv = _mutt_enter_string (buf, buflen, y, x, flags, 0, NULL, NULL, es);
187 mutt_free_enter_state (&es);
191 int _mutt_enter_string (char *buf, size_t buflen, int y, int x,
192 int flags, int multiple, char ***files, int *numfiles,
195 int width = COLS - x - 1;
197 int pass = (flags & M_PASS);
201 wchar_t *tempbuf = 0;
203 history_class_t hclass;
208 memset (&mbstate, 0, sizeof (mbstate));
212 /* Coming back after return 1 */
213 redraw = M_REDRAW_LINE;
217 /* Initialise wbuf from buf */
219 state->lastchar = my_mbstowcs (&state->wbuf, &state->wbuflen, 0, buf);
220 redraw = M_REDRAW_INIT;
223 if (flags & (M_FILE | M_EFILE))
225 else if (flags & M_CMD)
227 else if (flags & M_ALIAS)
229 else if (flags & M_COMMAND)
231 else if (flags & M_PATTERN)
240 if (redraw == M_REDRAW_INIT)
242 /* Go to end of line */
243 state->curpos = state->lastchar;
244 state->begin = width_ceiling (state->wbuf, state->lastchar, my_wcswidth (state->wbuf, state->lastchar) - width + 1);
246 if (state->curpos < state->begin ||
247 my_wcswidth (state->wbuf + state->begin, state->curpos - state->begin) >= width)
248 state->begin = width_ceiling (state->wbuf, state->lastchar, my_wcswidth (state->wbuf, state->curpos) - width / 2);
251 for (i = state->begin; i < state->lastchar; i++)
253 w += my_wcwidth (state->wbuf[i]);
256 my_addwch (state->wbuf[i]);
259 move (y, x + my_wcswidth (state->wbuf + state->begin, state->curpos - state->begin));
263 if ((ch = km_dokey (MENU_EDITOR)) == -1)
272 if (ch != OP_EDITOR_COMPLETE)
274 redraw = M_REDRAW_LINE;
277 case OP_EDITOR_HISTORY_UP:
278 state->curpos = state->lastchar;
279 replace_part (state, 0, mutt_history_prev (hclass));
280 redraw = M_REDRAW_INIT;
283 case OP_EDITOR_HISTORY_DOWN:
284 state->curpos = state->lastchar;
285 replace_part (state, 0, mutt_history_next (hclass));
286 redraw = M_REDRAW_INIT;
289 case OP_EDITOR_BACKSPACE:
290 if (state->curpos == 0)
295 while (i && COMB_CHAR (state->wbuf[i - 1]))
299 memmove (state->wbuf + i, state->wbuf + state->curpos, (state->lastchar - state->curpos) * sizeof (wchar_t));
300 state->lastchar -= state->curpos - i;
310 redraw= M_REDRAW_INIT;
313 case OP_EDITOR_KILL_LINE:
314 state->curpos = state->lastchar = 0;
317 case OP_EDITOR_KILL_EOL:
318 state->lastchar = state->curpos;
321 case OP_EDITOR_BACKWARD_CHAR:
322 if (state->curpos == 0)
326 while (state->curpos && COMB_CHAR (state->wbuf[state->curpos - 1]))
333 case OP_EDITOR_FORWARD_CHAR:
334 if (state->curpos == state->lastchar)
339 while (state->curpos < state->lastchar && COMB_CHAR (state->wbuf[state->curpos]))
344 case OP_EDITOR_BACKWARD_WORD:
345 if (state->curpos == 0)
349 while (state->curpos && iswspace (state->wbuf[state->curpos - 1]))
351 while (state->curpos && !iswspace (state->wbuf[state->curpos - 1]))
356 case OP_EDITOR_FORWARD_WORD:
357 if (state->curpos == state->lastchar)
361 while (state->curpos < state->lastchar && iswspace (state->wbuf[state->curpos]))
363 while (state->curpos < state->lastchar && !iswspace (state->wbuf[state->curpos]))
368 case OP_EDITOR_CAPITALIZE_WORD:
369 case OP_EDITOR_UPCASE_WORD:
370 case OP_EDITOR_DOWNCASE_WORD:
371 if (state->curpos == state->lastchar)
376 while (state->curpos && !iswspace (state->wbuf[state->curpos]))
378 while (state->curpos < state->lastchar && iswspace (state->wbuf[state->curpos]))
380 while (state->curpos < state->lastchar && !iswspace (state->wbuf[state->curpos]))
382 if (ch == OP_EDITOR_DOWNCASE_WORD)
383 state->wbuf[state->curpos] = towlower (state->wbuf[state->curpos]);
386 state->wbuf[state->curpos] = towupper (state->wbuf[state->curpos]);
387 if (ch == OP_EDITOR_CAPITALIZE_WORD)
388 ch = OP_EDITOR_DOWNCASE_WORD;
394 case OP_EDITOR_DELETE_CHAR:
395 if (state->curpos == state->lastchar)
400 while (i < state->lastchar && COMB_CHAR (state->wbuf[i]))
402 if (i < state->lastchar)
404 while (i < state->lastchar && COMB_CHAR (state->wbuf[i]))
406 memmove (state->wbuf + state->curpos, state->wbuf + i, (state->lastchar - i) * sizeof (wchar_t));
407 state->lastchar -= i - state->curpos;
411 case OP_EDITOR_KILL_WORD:
412 /* delete to begining of word */
413 if (state->curpos != 0)
416 while (i && iswspace (state->wbuf[i - 1]))
420 if (iswalnum (state->wbuf[i - 1]))
422 for (--i; i && iswalnum (state->wbuf[i - 1]); i--)
428 memmove (state->wbuf + i, state->wbuf + state->curpos,
429 (state->lastchar - state->curpos) * sizeof (wchar_t));
430 state->lastchar += i - state->curpos;
435 case OP_EDITOR_KILL_EOW:
436 /* delete to end of word */
437 for (i = state->curpos;
438 i < state->lastchar && iswspace (state->wbuf[i]); i++)
440 for (; i < state->lastchar && !iswspace (state->wbuf[i]); i++)
442 memmove (state->wbuf + state->curpos, state->wbuf + i,
443 (state->lastchar - i) * sizeof (wchar_t));
444 state->lastchar += state->curpos - i;
447 case OP_EDITOR_BUFFY_CYCLE:
450 first = 1; /* clear input if user types a real key later */
451 my_wcstombs (buf, buflen, state->wbuf, state->curpos);
452 mutt_buffy (buf, buflen);
453 state->curpos = state->lastchar = my_mbstowcs (&state->wbuf, &state->wbuflen, 0, buf);
456 else if (!(flags & M_FILE))
458 /* fall through to completion routine (M_FILE) */
460 case OP_EDITOR_COMPLETE:
464 for (i = state->curpos; i && state->wbuf[i-1] != ' '; i--)
466 my_wcstombs (buf, buflen, state->wbuf + i, state->curpos - i);
467 if (tempbuf && templen == state->lastchar - i &&
468 !memcmp (tempbuf, state->wbuf + i, (state->lastchar - i) * sizeof (wchar_t)))
470 mutt_select_file (buf, buflen, (flags & M_EFILE) ? M_SEL_FOLDER : 0);
471 set_option (OPTNEEDREDRAW);
473 replace_part (state, i, buf);
477 if (!mutt_complete (buf, buflen))
479 templen = state->lastchar - i;
480 safe_realloc (&tempbuf, templen * sizeof (wchar_t));
485 replace_part (state, i, buf);
487 else if (flags & M_ALIAS)
489 /* invoke the alias-menu to get more addresses */
490 for (i = state->curpos; i && state->wbuf[i-1] != ',' &&
491 state->wbuf[i-1] != ':'; i--)
493 for (; i < state->lastchar && state->wbuf[i] == ' '; i++)
495 my_wcstombs (buf, buflen, state->wbuf + i, state->curpos - i);
496 r = mutt_alias_complete (buf, buflen);
497 replace_part (state, i, buf);
505 else if (flags & M_COMMAND)
507 my_wcstombs (buf, buflen, state->wbuf, state->curpos);
509 if (i && buf[i - 1] == '=' &&
510 mutt_var_value_complete (buf, buflen, i))
512 else if (!mutt_command_complete (buf, buflen, i, state->tabs))
514 replace_part (state, 0, buf);
516 else if (flags & (M_FILE | M_EFILE))
518 my_wcstombs (buf, buflen, state->wbuf, state->curpos);
520 /* see if the path has changed from the last time */
521 if ((!tempbuf && !state->lastchar) || (tempbuf && templen == state->lastchar &&
522 !memcmp (tempbuf, state->wbuf, state->lastchar * sizeof (wchar_t))))
524 _mutt_select_file (buf, buflen,
525 ((flags & M_EFILE) ? M_SEL_FOLDER : 0) | (multiple ? M_SEL_MULTI : 0),
527 set_option (OPTNEEDREDRAW);
530 mutt_pretty_mailbox (buf);
532 mutt_history_add (hclass, buf);
537 /* file selection cancelled */
542 if (!mutt_complete (buf, buflen))
544 templen = state->lastchar;
545 safe_realloc (&tempbuf, templen * sizeof (wchar_t));
546 memcpy (tempbuf, state->wbuf, templen * sizeof (wchar_t));
549 BEEP (); /* let the user know that nothing matched */
550 replace_part (state, 0, buf);
556 case OP_EDITOR_COMPLETE_QUERY:
559 /* invoke the query-menu to get more addresses */
560 if ((i = state->curpos))
562 for (; i && state->wbuf[i - 1] != ','; i--)
564 for (; i < state->curpos && state->wbuf[i] == ' '; i++)
568 my_wcstombs (buf, buflen, state->wbuf + i, state->curpos - i);
569 mutt_query_complete (buf, buflen);
570 replace_part (state, i, buf);
578 case OP_EDITOR_QUOTE_CHAR:
582 event = mutt_getch ();
590 case OP_EDITOR_TRANSPOSE_CHARS:
591 if (state->lastchar < 2)
597 if (state->curpos == 0)
599 else if (state->curpos < state->lastchar)
602 t = state->wbuf[state->curpos - 2];
603 state->wbuf[state->curpos - 2] = state->wbuf[state->curpos - 1];
604 state->wbuf[state->curpos - 1] = t;
618 /* use the raw keypress */
621 if ((ch == '#') && (flags & M_LASTFOLDER))
624 my_wcstombs (buf, buflen, state->wbuf, state->lastchar);
629 /* treat ENTER the same as RETURN */
634 /* quietly ignore all other function keys */
638 /* gather the octets into a wide character */
644 k = mbrtowc (&wc, &c, 1, &mbstate);
645 if (k == (size_t)(-2))
647 else if (k && k != 1)
649 memset (&mbstate, 0, sizeof (mbstate));
654 if (first && (flags & M_CLEAR))
657 if (IsWPrint (wc)) /* why? */
658 state->curpos = state->lastchar = 0;
661 if (wc == '\r' || wc == '\n')
663 /* Convert from wide characters */
664 my_wcstombs (buf, buflen, state->wbuf, state->lastchar);
666 mutt_history_add (hclass, buf);
672 tfiles = safe_calloc (*numfiles, sizeof (char *));
673 mutt_expand_path (buf, buflen);
674 tfiles[0] = safe_strdup (buf);
680 else if (wc && (wc < ' ' || IsWPrint (wc))) /* why? */
682 if (state->lastchar >= state->wbuflen)
684 state->wbuflen = state->lastchar + 20;
685 safe_realloc (&state->wbuf, state->wbuflen * sizeof (wchar_t));
687 memmove (state->wbuf + state->curpos + 1, state->wbuf + state->curpos, (state->lastchar - state->curpos) * sizeof (wchar_t));
688 state->wbuf[state->curpos++] = wc;
705 void mutt_free_enter_state (ENTER_STATE **esp)
709 FREE (&(*esp)->wbuf);
715 * very narrow screen might crash it
716 * sort out the input side