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.
21 #include "mutt_menu.h"
22 #include "mutt_curses.h"
28 /* redraw flags for mutt_enter_string() */
31 M_REDRAW_INIT = 1, /* go to end of line and redraw */
32 M_REDRAW_LINE /* redraw entire line */
35 static int my_wcwidth (wchar_t wc)
38 if (IsWPrint (wc) && n > 0)
47 /* combining mark / non-spacing character */
48 #define COMB_CHAR(wc) (IsWPrint (wc) && !wcwidth (wc))
50 static int my_wcswidth (const wchar_t *s, size_t n)
54 w += my_wcwidth (*s++);
58 static int my_addwch (wchar_t wc)
61 if (IsWPrint (wc) && n > 0)
62 return mutt_addwch (wc);
64 return printw ("^%c", ((int)wc + 0x40) & 0x7f);
66 return printw ("\\u%04x", (int)wc);
67 return printw ("\\u%08x", (int)wc);
70 static size_t width_ceiling (const wchar_t *s, size_t n, int w1)
72 const wchar_t *s0 = s;
75 if ((w += my_wcwidth (*s)) > w1)
80 static void my_wcstombs (char *dest, size_t dlen, const wchar_t *src, size_t slen)
85 /* First convert directly into the destination buffer */
86 memset (&st, 0, sizeof (st));
87 for (; slen && dlen >= MB_LEN_MAX; dest += k, dlen -= k, src++, slen--)
88 if ((k = wcrtomb (dest, *src, &st)) == (size_t)(-1))
91 /* If this works, we can stop now */
92 if (dlen >= MB_LEN_MAX) {
93 wcrtomb (dest, 0, &st);
97 /* Otherwise convert any remaining data into a local buffer */
99 char buf[3 * MB_LEN_MAX];
102 for (; slen && p - buf < dlen; p += k, src++, slen--)
103 if ((k = wcrtomb (p, *src, &st)) == (size_t)(-1))
105 p += wcrtomb (p, 0, &st);
107 /* If it fits into the destination buffer, we can stop now */
108 if (p - buf <= dlen) {
109 memcpy (dest, buf, p - buf);
113 /* Otherwise we truncate the string in an ugly fashion */
114 memcpy (dest, buf, dlen);
115 dest[dlen - 1] = '\0'; /* assume original dlen > 0 */
119 size_t my_mbstowcs (wchar_t **pwbuf, size_t *pwbuflen, size_t i, char *buf)
127 wbuf = *pwbuf, wbuflen = *pwbuflen;
128 memset (&st, 0, sizeof (st));
129 for (; (k = mbrtowc (&wc, buf, MB_LEN_MAX, &st)) &&
130 k != (size_t)(-1) && k != (size_t)(-2); buf += k)
135 safe_realloc (&wbuf, wbuflen * sizeof (*wbuf));
139 *pwbuf = wbuf, *pwbuflen = wbuflen;
144 * Replace part of the wchar_t buffer, from FROM to CURPOS, by BUF.
147 static void replace_part (ENTER_STATE *state, size_t from, char *buf)
149 /* Save the suffix */
150 size_t savelen = state->lastchar - state->curpos;
151 wchar_t *savebuf = safe_calloc (savelen, sizeof (wchar_t));
152 memcpy (savebuf, state->wbuf + state->curpos, savelen * sizeof (wchar_t));
154 /* Convert to wide characters */
155 state->curpos = my_mbstowcs (&state->wbuf, &state->wbuflen, from, buf);
157 /* Make space for suffix */
158 if (state->curpos + savelen > state->wbuflen)
160 state->wbuflen = state->curpos + savelen;
161 safe_realloc (&state->wbuf, state->wbuflen * sizeof (wchar_t));
165 memcpy (state->wbuf + state->curpos, savebuf, savelen * sizeof (wchar_t));
166 state->lastchar = state->curpos + savelen;
173 * 1 need to redraw the screen and call me again
174 * 0 if input was given
178 int mutt_enter_string(char *buf, size_t buflen, int y, int x, int flags)
181 ENTER_STATE *es = mutt_new_enter_state ();
182 rv = _mutt_enter_string (buf, buflen, y, x, flags, 0, NULL, NULL, es);
183 mutt_free_enter_state (&es);
187 int _mutt_enter_string (char *buf, size_t buflen, int y, int x,
188 int flags, int multiple, char ***files, int *numfiles,
191 int width = COLS - x - 1;
193 int pass = (flags & M_PASS);
197 wchar_t *tempbuf = 0;
199 history_class_t hclass;
204 memset (&mbstate, 0, sizeof (mbstate));
208 /* Coming back after return 1 */
209 redraw = M_REDRAW_LINE;
213 /* Initialise wbuf from buf */
215 state->lastchar = my_mbstowcs (&state->wbuf, &state->wbuflen, 0, buf);
216 redraw = M_REDRAW_INIT;
219 if (flags & (M_FILE | M_EFILE))
221 else if (flags & M_CMD)
223 else if (flags & M_ALIAS)
225 else if (flags & M_COMMAND)
227 else if (flags & M_PATTERN)
236 if (redraw == M_REDRAW_INIT)
238 /* Go to end of line */
239 state->curpos = state->lastchar;
240 state->begin = width_ceiling (state->wbuf, state->lastchar, my_wcswidth (state->wbuf, state->lastchar) - width + 1);
242 if (state->curpos < state->begin ||
243 my_wcswidth (state->wbuf + state->begin, state->curpos - state->begin) >= width)
244 state->begin = width_ceiling (state->wbuf, state->lastchar, my_wcswidth (state->wbuf, state->curpos) - width / 2);
247 for (i = state->begin; i < state->lastchar; i++)
249 w += my_wcwidth (state->wbuf[i]);
252 my_addwch (state->wbuf[i]);
255 move (y, x + my_wcswidth (state->wbuf + state->begin, state->curpos - state->begin));
259 if ((ch = km_dokey (MENU_EDITOR)) == -1)
268 if (ch != OP_EDITOR_COMPLETE)
270 redraw = M_REDRAW_LINE;
273 case OP_EDITOR_HISTORY_UP:
274 state->curpos = state->lastchar;
275 replace_part (state, 0, mutt_history_prev (hclass));
276 redraw = M_REDRAW_INIT;
279 case OP_EDITOR_HISTORY_DOWN:
280 state->curpos = state->lastchar;
281 replace_part (state, 0, mutt_history_next (hclass));
282 redraw = M_REDRAW_INIT;
285 case OP_EDITOR_BACKSPACE:
286 if (state->curpos == 0)
291 while (i && COMB_CHAR (state->wbuf[i - 1]))
295 memmove (state->wbuf + i, state->wbuf + state->curpos, (state->lastchar - state->curpos) * sizeof (wchar_t));
296 state->lastchar -= state->curpos - i;
306 redraw= M_REDRAW_INIT;
309 case OP_EDITOR_KILL_LINE:
310 state->curpos = state->lastchar = 0;
313 case OP_EDITOR_KILL_EOL:
314 state->lastchar = state->curpos;
317 case OP_EDITOR_BACKWARD_CHAR:
318 if (state->curpos == 0)
322 while (state->curpos && COMB_CHAR (state->wbuf[state->curpos - 1]))
329 case OP_EDITOR_FORWARD_CHAR:
330 if (state->curpos == state->lastchar)
335 while (state->curpos < state->lastchar && COMB_CHAR (state->wbuf[state->curpos]))
340 case OP_EDITOR_BACKWARD_WORD:
341 if (state->curpos == 0)
345 while (state->curpos && iswspace (state->wbuf[state->curpos - 1]))
347 while (state->curpos && !iswspace (state->wbuf[state->curpos - 1]))
352 case OP_EDITOR_FORWARD_WORD:
353 if (state->curpos == state->lastchar)
357 while (state->curpos < state->lastchar && iswspace (state->wbuf[state->curpos]))
359 while (state->curpos < state->lastchar && !iswspace (state->wbuf[state->curpos]))
364 case OP_EDITOR_CAPITALIZE_WORD:
365 case OP_EDITOR_UPCASE_WORD:
366 case OP_EDITOR_DOWNCASE_WORD:
367 if (state->curpos == state->lastchar)
372 while (state->curpos && !iswspace (state->wbuf[state->curpos]))
374 while (state->curpos < state->lastchar && iswspace (state->wbuf[state->curpos]))
376 while (state->curpos < state->lastchar && !iswspace (state->wbuf[state->curpos]))
378 if (ch == OP_EDITOR_DOWNCASE_WORD)
379 state->wbuf[state->curpos] = towlower (state->wbuf[state->curpos]);
382 state->wbuf[state->curpos] = towupper (state->wbuf[state->curpos]);
383 if (ch == OP_EDITOR_CAPITALIZE_WORD)
384 ch = OP_EDITOR_DOWNCASE_WORD;
390 case OP_EDITOR_DELETE_CHAR:
391 if (state->curpos == state->lastchar)
396 while (i < state->lastchar && COMB_CHAR (state->wbuf[i]))
398 if (i < state->lastchar)
400 while (i < state->lastchar && COMB_CHAR (state->wbuf[i]))
402 memmove (state->wbuf + state->curpos, state->wbuf + i, (state->lastchar - i) * sizeof (wchar_t));
403 state->lastchar -= i - state->curpos;
407 case OP_EDITOR_KILL_WORD:
408 /* delete to begining of word */
409 if (state->curpos != 0)
412 while (i && iswspace (state->wbuf[i - 1]))
416 if (iswalnum (state->wbuf[i - 1]))
418 for (--i; i && iswalnum (state->wbuf[i - 1]); i--)
424 memmove (state->wbuf + i, state->wbuf + state->curpos,
425 (state->lastchar - state->curpos) * sizeof (wchar_t));
426 state->lastchar += i - state->curpos;
431 case OP_EDITOR_KILL_EOW:
432 /* delete to end of word */
433 for (i = state->curpos;
434 i < state->lastchar && iswspace (state->wbuf[i]); i++)
436 for (; i < state->lastchar && !iswspace (state->wbuf[i]); i++)
438 memmove (state->wbuf + state->curpos, state->wbuf + i,
439 (state->lastchar - i) * sizeof (wchar_t));
440 state->lastchar += state->curpos - i;
443 case OP_EDITOR_BUFFY_CYCLE:
446 first = 1; /* clear input if user types a real key later */
447 my_wcstombs (buf, buflen, state->wbuf, state->curpos);
448 mutt_buffy (buf, buflen);
449 state->curpos = state->lastchar = my_mbstowcs (&state->wbuf, &state->wbuflen, 0, buf);
452 else if (!(flags & M_FILE))
454 /* fall through to completion routine (M_FILE) */
456 case OP_EDITOR_COMPLETE:
460 for (i = state->curpos; i && state->wbuf[i-1] != ' '; i--)
462 my_wcstombs (buf, buflen, state->wbuf + i, state->curpos - i);
463 if (tempbuf && templen == state->lastchar - i &&
464 !memcmp (tempbuf, state->wbuf + i, (state->lastchar - i) * sizeof (wchar_t)))
466 mutt_select_file (buf, buflen, (flags & M_EFILE) ? M_SEL_FOLDER : 0);
467 set_option (OPTNEEDREDRAW);
469 replace_part (state, i, buf);
473 if (!mutt_complete (buf, buflen))
475 templen = state->lastchar - i;
476 safe_realloc (&tempbuf, templen * sizeof (wchar_t));
481 replace_part (state, i, buf);
483 else if (flags & M_ALIAS)
485 /* invoke the alias-menu to get more addresses */
486 for (i = state->curpos; i && state->wbuf[i-1] != ',' &&
487 state->wbuf[i-1] != ':'; i--)
489 for (; i < state->lastchar && state->wbuf[i] == ' '; i++)
491 my_wcstombs (buf, buflen, state->wbuf + i, state->curpos - i);
492 r = mutt_alias_complete (buf, buflen);
493 replace_part (state, i, buf);
501 else if (flags & M_COMMAND)
503 my_wcstombs (buf, buflen, state->wbuf, state->curpos);
505 if (i && buf[i - 1] == '=' &&
506 mutt_var_value_complete (buf, buflen, i))
508 else if (!mutt_command_complete (buf, buflen, i, state->tabs))
510 replace_part (state, 0, buf);
512 else if (flags & (M_FILE | M_EFILE))
514 my_wcstombs (buf, buflen, state->wbuf, state->curpos);
516 /* see if the path has changed from the last time */
517 if ((!tempbuf && !state->lastchar) || (tempbuf && templen == state->lastchar &&
518 !memcmp (tempbuf, state->wbuf, state->lastchar * sizeof (wchar_t))))
520 _mutt_select_file (buf, buflen,
521 ((flags & M_EFILE) ? M_SEL_FOLDER : 0) | (multiple ? M_SEL_MULTI : 0),
523 set_option (OPTNEEDREDRAW);
526 mutt_pretty_mailbox (buf);
528 mutt_history_add (hclass, buf);
533 /* file selection cancelled */
538 if (!mutt_complete (buf, buflen))
540 templen = state->lastchar;
541 safe_realloc (&tempbuf, templen * sizeof (wchar_t));
542 memcpy (tempbuf, state->wbuf, templen * sizeof (wchar_t));
545 BEEP (); /* let the user know that nothing matched */
546 replace_part (state, 0, buf);
552 case OP_EDITOR_COMPLETE_QUERY:
555 /* invoke the query-menu to get more addresses */
556 if ((i = state->curpos))
558 for (; i && state->wbuf[i - 1] != ','; i--)
560 for (; i < state->curpos && state->wbuf[i] == ' '; i++)
564 my_wcstombs (buf, buflen, state->wbuf + i, state->curpos - i);
565 mutt_query_complete (buf, buflen);
566 replace_part (state, i, buf);
574 case OP_EDITOR_QUOTE_CHAR:
578 event = mutt_getch ();
586 case OP_EDITOR_TRANSPOSE_CHARS:
587 if (state->lastchar < 2)
593 if (state->curpos == 0)
595 else if (state->curpos < state->lastchar)
598 t = state->wbuf[state->curpos - 2];
599 state->wbuf[state->curpos - 2] = state->wbuf[state->curpos - 1];
600 state->wbuf[state->curpos - 1] = t;
614 /* use the raw keypress */
624 /* treat ENTER the same as RETURN */
629 /* quietly ignore all other function keys */
633 /* gather the octets into a wide character */
639 k = mbrtowc (&wc, &c, 1, &mbstate);
640 if (k == (size_t)(-2))
642 else if (k && k != 1)
644 memset (&mbstate, 0, sizeof (mbstate));
649 if (first && (flags & M_CLEAR))
652 if (IsWPrint (wc)) /* why? */
653 state->curpos = state->lastchar = 0;
656 if (wc == '\r' || wc == '\n')
658 /* Convert from wide characters */
659 my_wcstombs (buf, buflen, state->wbuf, state->lastchar);
661 mutt_history_add (hclass, buf);
667 tfiles = safe_calloc (*numfiles, sizeof (char *));
668 mutt_expand_path (buf, buflen);
669 tfiles[0] = safe_strdup (buf);
675 else if (wc && (wc < ' ' || IsWPrint (wc))) /* why? */
677 if (state->lastchar >= state->wbuflen)
679 state->wbuflen = state->lastchar + 20;
680 safe_realloc (&state->wbuf, state->wbuflen * sizeof (wchar_t));
682 memmove (state->wbuf + state->curpos + 1, state->wbuf + state->curpos, (state->lastchar - state->curpos) * sizeof (wchar_t));
683 state->wbuf[state->curpos++] = wc;
700 void mutt_free_enter_state (ENTER_STATE **esp)
704 FREE (&(*esp)->wbuf);
710 * very narrow screen might crash it
711 * sort out the input side