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15637ed4 RG |
1 | /* tio.c */ |
2 | ||
3 | /* Author: | |
4 | * Steve Kirkendall | |
5 | * 14407 SW Teal Blvd. #C | |
6 | * Beaverton, OR 97005 | |
7 | * kirkenda@cs.pdx.edu | |
8 | */ | |
9 | ||
10 | ||
11 | /* This file contains terminal I/O functions */ | |
12 | ||
13 | #include "config.h" | |
14 | #include "vi.h" | |
15 | #include "ctype.h" | |
16 | ||
08746e8b | 17 | static int showmsg P_((void)); |
15637ed4 RG |
18 | |
19 | /* This function reads in a line from the terminal. */ | |
20 | int vgets(prompt, buf, bsize) | |
08746e8b | 21 | int prompt; /* the prompt character, or '\0' for none */ |
15637ed4 RG |
22 | char *buf; /* buffer into which the string is read */ |
23 | int bsize; /* size of the buffer */ | |
24 | { | |
25 | int len; /* how much we've read so far */ | |
26 | int ch; /* a character from the user */ | |
27 | int quoted; /* is the next char quoted? */ | |
28 | int tab; /* column position of cursor */ | |
29 | char widths[132]; /* widths of characters */ | |
30 | int word; /* index of first letter of word */ | |
31 | #ifndef NO_DIGRAPH | |
32 | int erased; /* 0, or first char of a digraph */ | |
33 | #endif | |
34 | ||
35 | /* show the prompt */ | |
36 | move(LINES - 1, 0); | |
37 | tab = 0; | |
38 | if (prompt) | |
39 | { | |
40 | addch(prompt); | |
41 | tab = 1; | |
42 | } | |
43 | clrtoeol(); | |
44 | refresh(); | |
45 | ||
46 | /* read in the line */ | |
47 | #ifndef NO_DIGRAPH | |
48 | erased = | |
49 | #endif | |
50 | quoted = len = 0; | |
51 | for (;;) | |
52 | { | |
53 | #ifndef NO_ABBR | |
54 | if (quoted || mode == MODE_EX) | |
55 | { | |
56 | ch = getkey(0); | |
57 | } | |
58 | else | |
59 | { | |
60 | /* maybe expand an abbreviation while getting key */ | |
08746e8b | 61 | for (word = len; --word >= 0 && !isspace(buf[word]); ) |
15637ed4 RG |
62 | { |
63 | } | |
64 | word++; | |
65 | ch = getabkey(WHEN_EX, &buf[word], len - word); | |
66 | } | |
67 | #else | |
68 | ch = getkey(0); | |
69 | #endif | |
70 | #ifndef NO_EXTENSIONS | |
71 | if (ch == ctrl('O')) | |
72 | { | |
73 | ch = getkey(quoted ? 0 : WHEN_EX); | |
74 | } | |
75 | #endif | |
76 | ||
77 | /* some special conversions */ | |
08746e8b | 78 | #if 0 |
15637ed4 RG |
79 | if (ch == ctrl('D') && len == 0) |
80 | ch = ctrl('['); | |
08746e8b | 81 | #endif |
15637ed4 RG |
82 | #ifndef NO_DIGRAPH |
83 | if (*o_digraph && erased != 0 && ch != '\b') | |
84 | { | |
85 | ch = digraph(erased, ch); | |
86 | erased = 0; | |
87 | } | |
88 | #endif | |
89 | ||
90 | /* inhibit detection of special chars (except ^J) after a ^V */ | |
91 | if (quoted && ch != '\n') | |
92 | { | |
93 | ch |= 256; | |
94 | } | |
95 | ||
96 | /* process the character */ | |
97 | switch(ch) | |
98 | { | |
99 | case ctrl('V'): | |
100 | qaddch('^'); | |
101 | qaddch('\b'); | |
102 | quoted = TRUE; | |
103 | break; | |
104 | ||
08746e8b | 105 | case ctrl('D'): |
15637ed4 RG |
106 | return -1; |
107 | ||
08746e8b | 108 | case ctrl('['): |
15637ed4 RG |
109 | case '\n': |
110 | #if OSK | |
111 | case '\l': | |
112 | #else | |
113 | case '\r': | |
114 | #endif | |
115 | clrtoeol(); | |
116 | goto BreakBreak; | |
117 | ||
08746e8b AM |
118 | #ifndef CRUNCH |
119 | case ctrl('U'): | |
120 | while (len > 0) | |
121 | { | |
122 | len--; | |
123 | while (widths[len]-- > 0) | |
124 | { | |
125 | qaddch('\b'); | |
126 | qaddch(' '); | |
127 | qaddch('\b'); | |
128 | } | |
129 | } | |
130 | break; | |
131 | #endif | |
132 | ||
15637ed4 RG |
133 | case '\b': |
134 | if (len > 0) | |
135 | { | |
136 | len--; | |
137 | #ifndef NO_DIGRAPH | |
138 | erased = buf[len]; | |
139 | #endif | |
140 | for (ch = widths[len]; ch > 0; ch--) | |
141 | addch('\b'); | |
142 | if (mode == MODE_EX) | |
143 | { | |
144 | clrtoeol(); | |
145 | } | |
146 | tab -= widths[len]; | |
147 | } | |
148 | else | |
149 | { | |
150 | return -1; | |
151 | } | |
152 | break; | |
153 | ||
154 | default: | |
155 | /* strip off quotation bit */ | |
156 | if (ch & 256) | |
157 | { | |
158 | ch &= ~256; | |
159 | qaddch(' '); | |
160 | qaddch('\b'); | |
161 | } | |
162 | ||
163 | /* add & echo the char */ | |
164 | if (len < bsize - 1) | |
165 | { | |
166 | if (ch == '\t' && !quoted) | |
167 | { | |
168 | widths[len] = *o_tabstop - (tab % *o_tabstop); | |
169 | addstr(" " + 8 - widths[len]); | |
170 | tab += widths[len]; | |
171 | } | |
172 | else if (ch > 0 && ch < ' ') /* > 0 by GB */ | |
173 | { | |
174 | addch('^'); | |
175 | addch(ch + '@'); | |
176 | widths[len] = 2; | |
177 | tab += 2; | |
178 | } | |
179 | else if (ch == '\177') | |
180 | { | |
181 | addch('^'); | |
182 | addch('?'); | |
183 | widths[len] = 2; | |
184 | tab += 2; | |
185 | } | |
186 | else | |
187 | { | |
188 | addch(ch); | |
189 | widths[len] = 1; | |
190 | tab++; | |
191 | } | |
192 | buf[len++] = ch; | |
193 | } | |
194 | else | |
195 | { | |
196 | beep(); | |
197 | } | |
198 | quoted = FALSE; | |
199 | } | |
200 | } | |
201 | BreakBreak: | |
202 | refresh(); | |
203 | buf[len] = '\0'; | |
204 | return len; | |
205 | } | |
206 | ||
207 | ||
208 | static int manymsgs; /* This variable keeps msgs from overwriting each other */ | |
209 | static char pmsg[80]; /* previous message (waiting to be displayed) */ | |
210 | ||
211 | ||
212 | static int showmsg() | |
213 | { | |
214 | /* if there is no message to show, then don't */ | |
215 | if (!manymsgs) | |
216 | return FALSE; | |
217 | ||
218 | /* display the message */ | |
219 | move(LINES - 1, 0); | |
220 | if (*pmsg) | |
221 | { | |
222 | standout(); | |
223 | qaddch(' '); | |
224 | qaddstr(pmsg); | |
225 | qaddch(' '); | |
226 | standend(); | |
227 | } | |
228 | clrtoeol(); | |
229 | ||
230 | manymsgs = FALSE; | |
231 | return TRUE; | |
232 | } | |
233 | ||
234 | ||
235 | void endmsgs() | |
236 | { | |
237 | if (manymsgs) | |
238 | { | |
239 | showmsg(); | |
240 | addch('\n'); | |
241 | } | |
242 | } | |
243 | ||
244 | /* Write a message in an appropriate way. This should really be a varargs | |
245 | * function, but there is no such thing as vwprintw. Hack!!! | |
246 | * | |
247 | * In MODE_EX or MODE_COLON, the message is written immediately, with a | |
248 | * newline at the end. | |
249 | * | |
250 | * In MODE_VI, the message is stored in a character buffer. It is not | |
251 | * displayed until getkey() is called. msg() will call getkey() itself, | |
252 | * if necessary, to prevent messages from being lost. | |
253 | * | |
254 | * msg("") - clears the message line | |
255 | * msg("%s %d", ...) - does a printf onto the message line | |
256 | */ | |
08746e8b AM |
257 | #ifdef __STDC__ |
258 | void msg (char *fmt, ...) | |
259 | { | |
260 | va_list ap; | |
261 | va_start (ap, fmt); | |
262 | #else | |
15637ed4 RG |
263 | void msg(fmt, arg1, arg2, arg3, arg4, arg5, arg6, arg7) |
264 | char *fmt; | |
265 | long arg1, arg2, arg3, arg4, arg5, arg6, arg7; | |
266 | { | |
08746e8b | 267 | #endif |
15637ed4 RG |
268 | if (mode != MODE_VI) |
269 | { | |
08746e8b AM |
270 | #ifdef __STDC__ |
271 | vsprintf (pmsg, fmt, ap); | |
272 | #else | |
15637ed4 | 273 | sprintf(pmsg, fmt, arg1, arg2, arg3, arg4, arg5, arg6, arg7); |
08746e8b | 274 | #endif |
15637ed4 RG |
275 | qaddstr(pmsg); |
276 | addch('\n'); | |
277 | exrefresh(); | |
278 | } | |
279 | else | |
280 | { | |
281 | /* wait for keypress between consecutive msgs */ | |
282 | if (manymsgs) | |
283 | { | |
284 | getkey(WHEN_MSG); | |
285 | } | |
286 | ||
287 | /* real message */ | |
08746e8b AM |
288 | #ifdef __STDC__ |
289 | vsprintf (pmsg, fmt, ap); | |
290 | #else | |
15637ed4 | 291 | sprintf(pmsg, fmt, arg1, arg2, arg3, arg4, arg5, arg6, arg7); |
08746e8b | 292 | #endif |
15637ed4 RG |
293 | if (*fmt) |
294 | { | |
295 | manymsgs = TRUE; | |
296 | } | |
297 | } | |
08746e8b AM |
298 | #ifdef __STDC__ |
299 | va_end (ap); | |
300 | #endif | |
15637ed4 RG |
301 | } |
302 | ||
303 | ||
304 | /* This function calls refresh() if the option exrefresh is set */ | |
305 | void exrefresh() | |
306 | { | |
307 | char *scan; | |
308 | ||
309 | /* If this ex command wrote ANYTHING set exwrote so vi's : command | |
310 | * can tell that it must wait for a user keystroke before redrawing. | |
311 | */ | |
312 | for (scan=kbuf; scan<stdscr; scan++) | |
313 | if (*scan == '\n') | |
314 | exwrote = TRUE; | |
315 | ||
316 | /* now we do the refresh thing */ | |
317 | if (*o_exrefresh) | |
318 | { | |
319 | refresh(); | |
320 | } | |
321 | else | |
322 | { | |
323 | wqrefresh(); | |
324 | } | |
325 | if (mode != MODE_VI) | |
326 | { | |
327 | manymsgs = FALSE; | |
328 | } | |
329 | } | |
330 | ||
331 | ||
332 | /* This structure is used to store maps and abbreviations. The distinction | |
333 | * between them is that maps are stored in the list referenced by the "maps" | |
334 | * pointer, while abbreviations are referenced by the "abbrs" pointer. | |
335 | */ | |
336 | typedef struct _map | |
337 | { | |
338 | struct _map *next; /* another abbreviation */ | |
339 | short len; /* length of the "rawin" characters */ | |
340 | short flags; /* various flags */ | |
341 | char *label; /* label of the map/abbr, or NULL */ | |
342 | char *rawin; /* the "rawin" characters */ | |
343 | char *cooked;/* the "cooked" characters */ | |
344 | } MAP; | |
345 | ||
346 | static char keybuf[KEYBUFSIZE]; | |
347 | static int cend; /* end of input characters */ | |
348 | static int user; /* from user through end are chars typed by user */ | |
349 | static int next; /* index of the next character to be returned */ | |
350 | static MAP *match; /* the matching map, found by countmatch() */ | |
351 | static MAP *maps; /* the map table */ | |
352 | #ifndef NO_ABBR | |
353 | static MAP *abbrs; /* the abbreviation table */ | |
354 | #endif | |
355 | ||
356 | ||
357 | ||
358 | /* ring the terminal's bell */ | |
359 | void beep() | |
360 | { | |
361 | /* do a visible/audible bell */ | |
362 | if (*o_flash) | |
363 | { | |
364 | do_VB(); | |
365 | refresh(); | |
366 | } | |
367 | else if (*o_errorbells) | |
368 | { | |
08746e8b | 369 | tputs("\007", 1, faddch); |
15637ed4 RG |
370 | } |
371 | ||
372 | /* discard any buffered input, and abort macros */ | |
373 | next = user = cend; | |
374 | } | |
375 | ||
376 | ||
377 | ||
378 | /* This function replaces a "rawin" character sequence with the "cooked" version, | |
379 | * by modifying the internal type-ahead buffer. | |
380 | */ | |
381 | void execmap(rawlen, cookedstr, visual) | |
382 | int rawlen; /* length of rawin text -- string to delete */ | |
383 | char *cookedstr; /* the cooked text -- string to insert */ | |
384 | int visual; /* boolean -- chars to be executed in visual mode? */ | |
385 | { | |
386 | int cookedlen; | |
387 | char *src, *dst; | |
388 | int i; | |
389 | ||
390 | /* find the length of the cooked string */ | |
391 | cookedlen = strlen(cookedstr); | |
392 | #ifndef NO_EXTENSIONS | |
393 | if (visual) | |
394 | { | |
395 | cookedlen *= 2; | |
396 | } | |
397 | #endif | |
398 | ||
399 | /* if too big to fit in type-ahead buffer, then don't do it */ | |
400 | if (cookedlen + (cend - next) - rawlen > KEYBUFSIZE) | |
401 | { | |
402 | return; | |
403 | } | |
404 | ||
405 | /* shift to make room for cookedstr at the front of keybuf */ | |
406 | src = &keybuf[next + rawlen]; | |
407 | dst = &keybuf[cookedlen]; | |
408 | i = cend - (next + rawlen); | |
409 | if (src >= dst) | |
410 | { | |
411 | while (i-- > 0) | |
412 | { | |
413 | *dst++ = *src++; | |
414 | } | |
415 | } | |
416 | else | |
417 | { | |
418 | src += i; | |
419 | dst += i; | |
420 | while (i-- > 0) | |
421 | { | |
422 | *--dst = *--src; | |
423 | } | |
424 | } | |
425 | ||
426 | /* insert cookedstr, and adjust offsets */ | |
427 | cend += cookedlen - rawlen - next; | |
428 | user += cookedlen - rawlen - next; | |
429 | next = 0; | |
430 | for (dst = keybuf, src = cookedstr; *src; ) | |
431 | { | |
432 | #ifndef NO_EXTENSIONS | |
433 | if (visual) | |
434 | { | |
435 | *dst++ = ctrl('O'); | |
436 | cookedlen--; | |
437 | } | |
438 | #endif | |
439 | *dst++ = *src++; | |
440 | } | |
441 | ||
442 | #ifdef DEBUG2 | |
443 | { | |
444 | #include <stdio.h> | |
445 | FILE *debout; | |
446 | int i; | |
447 | ||
448 | debout = fopen("debug.out", "a"); | |
449 | fprintf(debout, "After execmap(%d, \"%s\", %d)...\n", rawlen, cookedstr, visual); | |
450 | for (i = 0; i < cend; i++) | |
451 | { | |
452 | if (i == next) fprintf(debout, "(next)"); | |
453 | if (i == user) fprintf(debout, "(user)"); | |
454 | if (UCHAR(keybuf[i]) < ' ') | |
455 | fprintf(debout, "^%c", keybuf[i] ^ '@'); | |
456 | else | |
457 | fprintf(debout, "%c", keybuf[i]); | |
458 | } | |
459 | fprintf(debout, "(end)\n"); | |
460 | fclose(debout); | |
461 | } | |
462 | #endif | |
463 | } | |
464 | ||
08746e8b AM |
465 | #ifndef NO_CURSORSHAPE |
466 | /* made global so that suspend_curses() can reset it. -nox */ | |
467 | int oldcurs; | |
468 | #endif | |
15637ed4 RG |
469 | /* This function calls ttyread(). If necessary, it will also redraw the screen, |
470 | * change the cursor shape, display the mode, and update the ruler. If the | |
471 | * number of characters read is 0, and we didn't time-out, then it exits because | |
472 | * we've apparently reached the end of an EX script. | |
473 | */ | |
474 | static int fillkeybuf(when, timeout) | |
475 | int when; /* mixture of WHEN_XXX flags */ | |
476 | int timeout;/* timeout in 1/10 second increments, or 0 */ | |
477 | { | |
478 | int nkeys; | |
479 | #ifndef NO_SHOWMODE | |
480 | static int oldwhen; /* "when" from last time */ | |
481 | static int oldleft; | |
482 | static long oldtop; | |
483 | static long oldnlines; | |
484 | char *str; | |
485 | #endif | |
15637ed4 RG |
486 | |
487 | #ifdef DEBUG | |
488 | watch(); | |
489 | #endif | |
490 | ||
491 | ||
492 | #ifndef NO_CURSORSHAPE | |
493 | /* make sure the cursor is the right shape */ | |
494 | if (has_CQ) | |
495 | { | |
496 | if (when != oldcurs) | |
497 | { | |
498 | switch (when) | |
499 | { | |
500 | case WHEN_EX: do_CX(); break; | |
501 | case WHEN_VICMD: do_CV(); break; | |
502 | case WHEN_VIINP: do_CI(); break; | |
503 | case WHEN_VIREP: do_CR(); break; | |
504 | } | |
505 | oldcurs = when; | |
506 | } | |
507 | } | |
508 | #endif | |
509 | ||
510 | #ifndef NO_SHOWMODE | |
511 | /* if "showmode" then say which mode we're in */ | |
512 | if (*o_smd && (when & WHENMASK)) | |
513 | { | |
514 | /* redraw the screen before we check to see whether the | |
515 | * "showmode" message needs to be redrawn. | |
516 | */ | |
517 | redraw(cursor, !(when & WHEN_VICMD)); | |
518 | ||
519 | /* now the "topline" test should be valid */ | |
08746e8b AM |
520 | if (when != oldwhen |
521 | || topline != oldtop | |
522 | || leftcol != oldleft | |
523 | || nlines != oldnlines) | |
15637ed4 RG |
524 | { |
525 | oldwhen = when; | |
526 | oldtop = topline; | |
527 | oldleft = leftcol; | |
528 | oldnlines = nlines; | |
529 | ||
530 | if (when & WHEN_VICMD) str = "Command"; | |
531 | else if (when & WHEN_VIINP) str = " Input "; | |
532 | else if (when & WHEN_VIREP) str = "Replace"; | |
08746e8b AM |
533 | else if (when & WHEN_REP1) str = "Replc 1"; |
534 | else if (when & WHEN_CUT) str = "Buffer "; | |
535 | else if (when & WHEN_MARK) str = " Mark "; | |
15637ed4 RG |
536 | else if (when & WHEN_CHAR) str = "Dest Ch"; |
537 | else str = (char *)0; | |
538 | ||
539 | if (str) | |
540 | { | |
541 | move(LINES - 1, COLS - 10); | |
542 | standout(); | |
543 | qaddstr(str); | |
544 | standend(); | |
545 | } | |
546 | } | |
547 | } | |
548 | #endif | |
549 | ||
550 | #ifndef NO_EXTENSIONS | |
551 | /* maybe display the ruler */ | |
552 | if (*o_ruler && (when & (WHEN_VICMD|WHEN_VIINP|WHEN_VIREP))) | |
553 | { | |
554 | char buf[20]; | |
555 | ||
556 | redraw(cursor, !(when & WHEN_VICMD)); | |
557 | pfetch(markline(cursor)); | |
558 | sprintf(buf, "%7ld,%-4d", markline(cursor), 1 + idx2col(cursor, ptext, when & (WHEN_VIINP|WHEN_VIREP))); | |
559 | move(LINES - 1, COLS - 22); | |
560 | addstr(buf); | |
561 | } | |
562 | #endif | |
563 | ||
564 | /* redraw, so the cursor is in the right place */ | |
565 | if (when & WHENMASK) | |
566 | { | |
567 | redraw(cursor, !(when & (WHENMASK & ~(WHEN_VIREP|WHEN_VIINP)))); | |
568 | } | |
569 | ||
570 | /* Okay, now we can finally read the rawin keystrokes */ | |
571 | refresh(); | |
572 | nkeys = ttyread(keybuf + cend, sizeof keybuf - cend, timeout); | |
573 | ||
574 | /* if nkeys == 0 then we've reached EOF of an ex script. */ | |
575 | if (nkeys == 0 && timeout == 0) | |
576 | { | |
577 | tmpabort(TRUE); | |
578 | move(LINES - 1, 0); | |
579 | clrtoeol(); | |
580 | refresh(); | |
581 | endwin(); | |
08746e8b | 582 | exit(exitcode); |
15637ed4 RG |
583 | } |
584 | ||
585 | cend += nkeys; | |
586 | user += nkeys; | |
587 | return nkeys; | |
588 | } | |
589 | ||
590 | ||
591 | /* This function counts the number of maps that could match the characters | |
592 | * between &keybuf[next] and &keybuf[cend], including incomplete matches. | |
593 | * The longest comlete match is remembered via the "match" variable. | |
594 | */ | |
595 | static int countmatch(when) | |
596 | int when; /* mixture of WHEN_XXX flags */ | |
597 | { | |
598 | MAP *map; | |
599 | int count; | |
600 | ||
601 | /* clear the "match" variable */ | |
602 | match = (MAP *)0; | |
603 | ||
604 | /* check every map */ | |
605 | for (count = 0, map = maps; map; map = map->next) | |
606 | { | |
607 | /* can't match if wrong mode */ | |
608 | if ((map->flags & when) == 0) | |
609 | { | |
610 | continue; | |
611 | } | |
612 | ||
613 | /* would this be a complete match? */ | |
614 | if (map->len <= cend - next) | |
615 | { | |
616 | /* Yes, it would be. Now does it really match? */ | |
617 | if (!strncmp(map->rawin, &keybuf[next], map->len)) | |
618 | { | |
619 | count++; | |
620 | ||
621 | /* if this is the longest complete match, | |
622 | * then remember it. | |
623 | */ | |
624 | if (!match || match->len < map->len) | |
625 | { | |
626 | match = map; | |
627 | } | |
628 | } | |
629 | } | |
630 | else | |
631 | { | |
632 | /* No, it wouldn't. But check for partial match */ | |
633 | if (!strncmp(map->rawin, &keybuf[next], cend - next)) | |
634 | { | |
08746e8b AM |
635 | /* increment by 2 instead of 1 so that, in the |
636 | * event that we have a partial match with a | |
637 | * single map, we don't mistakenly assume we | |
638 | * have resolved the map yet. | |
639 | */ | |
640 | count += 2; | |
15637ed4 RG |
641 | } |
642 | } | |
643 | } | |
644 | return count; | |
645 | } | |
646 | ||
647 | ||
648 | #ifndef NO_ABBR | |
649 | /* This function checks to see whether a word is an abbreviation. If it is, | |
650 | * then an appropriate number of backspoace characters is inserted into the | |
651 | * type-ahead buffer, followed by the expanded form of the abbreviation. | |
652 | */ | |
653 | static void expandabbr(word, wlen) | |
654 | char *word; | |
655 | int wlen; | |
656 | { | |
657 | MAP *abbr; | |
658 | ||
659 | /* if the next character wouldn't end the word, then don't expand */ | |
08746e8b | 660 | if (isalnum(keybuf[next]) || keybuf[next] == ctrl('V') || keybuf[next] == '\b') |
15637ed4 RG |
661 | { |
662 | return; | |
663 | } | |
664 | ||
665 | /* find the abbreviation, if any */ | |
666 | for (abbr = abbrs; | |
667 | abbr && (abbr->len != wlen || strncmp(abbr->rawin, word, wlen)); | |
668 | abbr = abbr->next) | |
669 | { | |
670 | } | |
671 | ||
672 | /* If an abbreviation was found, then expand it by inserting the long | |
673 | * version into the type-ahead buffer, and then inserting (in front of | |
674 | * the long version) enough backspaces to erase to the short version. | |
675 | */ | |
676 | if (abbr) | |
677 | { | |
678 | execmap(0, abbr->cooked, FALSE); | |
679 | while (wlen > 15) | |
680 | { | |
681 | execmap(0, "\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b", FALSE); | |
682 | wlen -= 15; | |
683 | } | |
684 | if (wlen > 0) | |
685 | { | |
686 | execmap(0, "\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b" + 15 - wlen, FALSE); | |
687 | } | |
688 | } | |
689 | } | |
690 | #endif | |
691 | ||
692 | ||
693 | /* This function calls getabkey() without attempting to expand abbreviations */ | |
694 | int getkey(when) | |
695 | int when; /* mixture of WHEN_XXX flags */ | |
696 | { | |
697 | return getabkey(when, "", 0); | |
698 | } | |
699 | ||
700 | ||
701 | /* This is it. This function returns keystrokes one-at-a-time, after mapping | |
702 | * and abbreviations have been taken into account. | |
703 | */ | |
704 | int getabkey(when, word, wlen) | |
705 | int when; /* mixture of WHEN_XXX flags */ | |
706 | char *word; /* a word that may need to be expanded as an abbr */ | |
707 | int wlen; /* length of "word" -- since "word" might not have \0 */ | |
708 | { | |
709 | int matches; | |
710 | ||
711 | /* if this key is needed for delay between multiple error messages, | |
712 | * then reset the manymsgs flag and abort any mapped key sequence. | |
713 | */ | |
714 | if (showmsg()) | |
715 | { | |
716 | if (when == WHEN_MSG) | |
717 | { | |
718 | #ifndef CRUNCH | |
719 | if (!*o_more) | |
720 | { | |
721 | refresh(); | |
722 | return ' '; | |
723 | } | |
724 | #endif | |
725 | qaddstr("[More...]"); | |
726 | refresh(); | |
727 | execmap(user, "", FALSE); | |
728 | } | |
729 | } | |
730 | ||
731 | #ifdef DEBUG | |
732 | /* periodically check for screwed up internal tables */ | |
733 | watch(); | |
734 | #endif | |
735 | ||
736 | /* if buffer empty, read some characters without timeout */ | |
737 | if (next >= cend) | |
738 | { | |
739 | next = user = cend = 0; | |
740 | fillkeybuf(when, 0); | |
741 | } | |
742 | ||
743 | /* try to map the key, unless already mapped and not ":set noremap" */ | |
08746e8b | 744 | if (next <= user || *o_remap) |
15637ed4 RG |
745 | { |
746 | do | |
747 | { | |
748 | do | |
749 | { | |
750 | matches = countmatch(when); | |
751 | } while (matches > 1 && fillkeybuf(when, *o_keytime) > 0); | |
752 | if (matches == 1) | |
753 | { | |
754 | execmap(match->len, match->cooked, | |
755 | (match->flags & WHEN_INMV) != 0 | |
756 | && (when & (WHEN_VIINP|WHEN_VIREP)) != 0); | |
757 | } | |
758 | } while (*o_remap && matches == 1); | |
759 | } | |
760 | ||
08746e8b AM |
761 | /* ERASEKEY should always be mapped to '\b'. */ |
762 | if (keybuf[next] == ERASEKEY) | |
763 | { | |
764 | keybuf[next] = '\b'; | |
765 | } | |
766 | ||
15637ed4 RG |
767 | #ifndef NO_ABBR |
768 | /* try to expand an abbreviation, except in visual command mode */ | |
769 | if (wlen > 0 && (mode & (WHEN_EX|WHEN_VIINP|WHEN_VIREP)) != 0) | |
770 | { | |
771 | expandabbr(word, wlen); | |
772 | } | |
773 | #endif | |
774 | ||
15637ed4 RG |
775 | /* return the next key */ |
776 | return keybuf[next++]; | |
777 | } | |
778 | ||
779 | /* This function maps or unmaps a key */ | |
780 | void mapkey(rawin, cooked, when, name) | |
781 | char *rawin; /* the input key sequence, before mapping */ | |
782 | char *cooked;/* after mapping -- or NULL to remove map */ | |
08746e8b | 783 | int when; /* bitmap of when mapping should happen */ |
15637ed4 RG |
784 | char *name; /* name of the key, NULL for no name, "abbr" for abbr */ |
785 | { | |
786 | MAP **head; /* head of list of maps or abbreviations */ | |
787 | MAP *scan; /* used for scanning through the list */ | |
788 | MAP *prev; /* used during deletions */ | |
789 | ||
790 | /* Is this a map or an abbreviation? Choose the right list. */ | |
791 | #ifndef NO_ABBR | |
792 | head = ((!name || strcmp(name, "abbr")) ? &maps : &abbrs); | |
793 | #else | |
794 | head = &maps; | |
795 | #endif | |
796 | ||
797 | /* try to find the map in the list */ | |
798 | for (scan = *head, prev = (MAP *)0; | |
08746e8b | 799 | scan && (strcmp(rawin, scan->rawin) && strcmp(rawin, scan->cooked) || |
15637ed4 RG |
800 | !(scan->flags & when & (WHEN_EX|WHEN_VICMD|WHEN_VIINP|WHEN_VIREP))); |
801 | prev = scan, scan = scan->next) | |
802 | { | |
803 | } | |
804 | ||
805 | /* trying to map? (not unmap) */ | |
806 | if (cooked && *cooked) | |
807 | { | |
808 | /* if map starts with "visual ", then mark it as a visual map */ | |
809 | if (head == &maps && !strncmp(cooked, "visual ", 7)) | |
810 | { | |
811 | cooked += 7; | |
812 | when |= WHEN_INMV; | |
813 | } | |
814 | ||
815 | /* "visual" maps always work in input mode */ | |
816 | if (when & WHEN_INMV) | |
817 | { | |
818 | when |= WHEN_VIINP|WHEN_VIREP|WHEN_POPUP; | |
819 | } | |
820 | ||
821 | /* if not already in the list, then allocate a new structure */ | |
822 | if (!scan) | |
823 | { | |
824 | scan = (MAP *)malloc(sizeof(MAP)); | |
825 | scan->len = strlen(rawin); | |
08746e8b | 826 | scan->rawin = malloc((unsigned)(scan->len + 1)); |
15637ed4 RG |
827 | strcpy(scan->rawin, rawin); |
828 | scan->flags = when; | |
829 | scan->label = name; | |
830 | if (*head) | |
831 | { | |
832 | prev->next = scan; | |
833 | } | |
834 | else | |
835 | { | |
836 | *head = scan; | |
837 | } | |
838 | scan->next = (MAP *)0; | |
839 | } | |
840 | else /* recycle old structure */ | |
841 | { | |
08746e8b | 842 | _free_(scan->cooked); |
15637ed4 | 843 | } |
08746e8b | 844 | scan->cooked = malloc((unsigned)(strlen(cooked) + 1)); |
15637ed4 RG |
845 | strcpy(scan->cooked, cooked); |
846 | } | |
847 | else /* unmapping */ | |
848 | { | |
849 | /* if nothing to unmap, then exit silently */ | |
850 | if (!scan) | |
851 | { | |
852 | return; | |
853 | } | |
854 | ||
855 | /* unlink the structure from the list */ | |
856 | if (prev) | |
857 | { | |
858 | prev->next = scan->next; | |
859 | } | |
860 | else | |
861 | { | |
862 | *head = scan->next; | |
863 | } | |
864 | ||
865 | /* free it, and the strings that it refers to */ | |
08746e8b AM |
866 | _free_(scan->rawin); |
867 | _free_(scan->cooked); | |
868 | _free_(scan); | |
15637ed4 RG |
869 | } |
870 | } | |
871 | ||
872 | ||
873 | /* This function returns a printable version of a string. It uses tmpblk.c */ | |
874 | char *printable(str) | |
875 | char *str; /* the string to convert */ | |
876 | { | |
877 | char *build; /* used for building the string */ | |
878 | ||
879 | for (build = tmpblk.c; *str; str++) | |
880 | { | |
881 | #if AMIGA | |
882 | if (*str == '\233') | |
883 | { | |
884 | *build++ = '<'; | |
885 | *build++ = 'C'; | |
886 | *build++ = 'S'; | |
887 | *build++ = 'I'; | |
888 | *build++ = '>'; | |
889 | } else | |
890 | #endif | |
891 | if (UCHAR(*str) < ' ' || *str == '\177') | |
892 | { | |
893 | *build++ = '^'; | |
894 | *build++ = *str ^ '@'; | |
895 | } | |
896 | else | |
897 | { | |
898 | *build++ = *str; | |
899 | } | |
900 | } | |
901 | *build = '\0'; | |
902 | return tmpblk.c; | |
903 | } | |
904 | ||
905 | /* This function displays the contents of either the map table or the | |
906 | * abbreviation table. User commands call this function as follows: | |
907 | * :map dumpkey(WHEN_VICMD, FALSE); | |
908 | * :map! dumpkey(WHEN_VIREP|WHEN_VIINP, FALSE); | |
909 | * :abbr dumpkey(WHEN_VIINP|WHEN_VIREP, TRUE); | |
910 | * :abbr! dumpkey(WHEN_EX|WHEN_VIINP|WHEN_VIREP, TRUE); | |
911 | */ | |
912 | void dumpkey(when, abbr) | |
913 | int when; /* WHEN_XXXX of mappings to be dumped */ | |
914 | int abbr; /* boolean: dump abbreviations instead of maps? */ | |
915 | { | |
916 | MAP *scan; | |
917 | char *str; | |
918 | int len; | |
919 | ||
920 | #ifndef NO_ABBR | |
921 | for (scan = (abbr ? abbrs : maps); scan; scan = scan->next) | |
922 | #else | |
923 | for (scan = maps; scan; scan = scan->next) | |
924 | #endif | |
925 | { | |
926 | /* skip entries that don't match "when" */ | |
927 | if ((scan->flags & when) == 0) | |
928 | { | |
929 | continue; | |
930 | } | |
931 | ||
932 | /* dump the key label, if any */ | |
933 | if (!abbr) | |
934 | { | |
935 | len = 8; | |
936 | if (scan->label) | |
937 | { | |
938 | qaddstr(scan->label); | |
939 | len -= strlen(scan->label); | |
940 | } | |
941 | do | |
942 | { | |
943 | qaddch(' '); | |
944 | } while (len-- > 0); | |
945 | } | |
946 | ||
947 | /* dump the rawin version */ | |
948 | str = printable(scan->rawin); | |
949 | qaddstr(str); | |
950 | len = strlen(str); | |
951 | do | |
952 | { | |
953 | qaddch(' '); | |
954 | } while (len++ < 8); | |
955 | ||
956 | /* dump the mapped version */ | |
957 | #ifndef NO_EXTENSIONS | |
958 | if ((scan->flags & WHEN_INMV) && (when & (WHEN_VIINP|WHEN_VIREP))) | |
959 | { | |
960 | qaddstr("visual "); | |
961 | } | |
962 | #endif | |
963 | str = printable(scan->cooked); | |
964 | qaddstr(str); | |
965 | addch('\n'); | |
966 | exrefresh(); | |
967 | } | |
968 | } | |
969 | ||
970 | #ifndef NO_MKEXRC | |
971 | ||
08746e8b | 972 | static void safequote(str) |
15637ed4 RG |
973 | char *str; |
974 | { | |
975 | char *build; | |
976 | ||
977 | build = tmpblk.c + strlen(tmpblk.c); | |
978 | while (*str) | |
979 | { | |
980 | if (*str <= ' ' && *str >= 1 || *str == '|') | |
981 | { | |
982 | *build++ = ctrl('V'); | |
983 | } | |
984 | *build++ = *str++; | |
985 | } | |
986 | *build = '\0'; | |
987 | } | |
988 | ||
989 | /* This function saves the contents of either the map table or the | |
990 | * abbreviation table into a file. Both the "bang" and "no bang" versions | |
991 | * are saved. | |
992 | * :map dumpkey(WHEN_VICMD, FALSE); | |
993 | * :map! dumpkey(WHEN_VIREP|WHEN_VIINP, FALSE); | |
994 | * :abbr dumpkey(WHEN_VIINP|WHEN_VIREP, TRUE); | |
995 | * :abbr! dumpkey(WHEN_EX|WHEN_VIINP|WHEN_VIREP, TRUE); | |
996 | */ | |
08746e8b | 997 | void |
15637ed4 RG |
998 | savemaps(fd, abbr) |
999 | int fd; /* file descriptor of an open file to write to */ | |
1000 | int abbr; /* boolean: do abbr table? (else do map table) */ | |
1001 | { | |
1002 | MAP *scan; | |
15637ed4 RG |
1003 | int bang; |
1004 | int when; | |
15637ed4 RG |
1005 | |
1006 | # ifndef NO_ABBR | |
1007 | for (scan = (abbr ? abbrs : maps); scan; scan = scan->next) | |
1008 | # else | |
1009 | for (scan = maps; scan; scan = scan->next) | |
1010 | # endif | |
1011 | { | |
1012 | /* skip maps that have labels, except for function keys */ | |
1013 | if (scan->label && *scan->label != '#') | |
1014 | { | |
1015 | continue; | |
1016 | } | |
1017 | ||
1018 | for (bang = 0; bang < 2; bang++) | |
1019 | { | |
1020 | /* decide which "when" flags we want */ | |
1021 | # ifndef NO_ABBR | |
1022 | if (abbr) | |
1023 | when = (bang ? WHEN_EX|WHEN_VIINP|WHEN_VIREP : WHEN_VIINP|WHEN_VIREP); | |
1024 | else | |
1025 | # endif | |
1026 | when = (bang ? WHEN_VIREP|WHEN_VIINP : WHEN_VICMD); | |
1027 | ||
1028 | /* skip entries that don't match "when" */ | |
1029 | if ((scan->flags & when) == 0) | |
1030 | { | |
1031 | continue; | |
1032 | } | |
1033 | ||
1034 | /* write a "map" or "abbr" command name */ | |
1035 | # ifndef NO_ABBR | |
1036 | if (abbr) | |
1037 | strcpy(tmpblk.c, "abbr"); | |
1038 | else | |
1039 | # endif | |
1040 | strcpy(tmpblk.c, "map"); | |
1041 | ||
1042 | /* maybe write a bang. Definitely write a space */ | |
1043 | if (bang) | |
1044 | strcat(tmpblk.c, "! "); | |
1045 | else | |
1046 | strcat(tmpblk.c, " "); | |
1047 | ||
1048 | /* write the rawin version */ | |
1049 | # ifndef NO_FKEY | |
1050 | if (scan->label) | |
1051 | strcat(tmpblk.c, scan->label); | |
1052 | else | |
1053 | # endif | |
1054 | safequote(scan->rawin); | |
1055 | strcat(tmpblk.c, " "); | |
1056 | ||
1057 | /* dump the mapped version */ | |
1058 | # ifndef NO_EXTENSIONS | |
1059 | if ((scan->flags & WHEN_INMV) && (when & (WHEN_VIINP|WHEN_VIREP))) | |
1060 | { | |
1061 | strcat(tmpblk.c, "visual "); | |
1062 | } | |
1063 | # endif | |
1064 | safequote(scan->cooked); | |
1065 | strcat(tmpblk.c, "\n"); | |
1066 | twrite(fd, tmpblk.c, strlen(tmpblk.c)); | |
1067 | } | |
1068 | } | |
1069 | } | |
1070 | #endif |