Commit | Line | Data |
---|---|---|
299f2784 | 1 | /* Copyright (c) 1981 Regents of the University of California */ |
c2480b3f | 2 | static char *sccsid = "@(#)ex_put.c 7.7 %G%"; |
e45f2c96 MH |
3 | #include "ex.h" |
4 | #include "ex_tty.h" | |
5 | #include "ex_vis.h" | |
6 | ||
7 | /* | |
8 | * Terminal driving and line formatting routines. | |
9 | * Basic motion optimizations are done here as well | |
10 | * as formatting of lines (printing of control characters, | |
11 | * line numbering and the like). | |
12 | */ | |
13 | ||
14 | /* | |
15 | * The routines outchar, putchar and pline are actually | |
16 | * variables, and these variables point at the current definitions | |
17 | * of the routines. See the routine setflav. | |
18 | * We sometimes make outchar be routines which catch the characters | |
19 | * to be printed, e.g. if we want to see how long a line is. | |
20 | * During open/visual, outchar and putchar will be set to | |
21 | * routines in the file ex_vput.c (vputchar, vinschar, etc.). | |
22 | */ | |
23 | int (*Outchar)() = termchar; | |
24 | int (*Putchar)() = normchar; | |
25 | int (*Pline)() = normline; | |
26 | ||
27 | int (* | |
28 | setlist(t))() | |
29 | bool t; | |
30 | { | |
31 | register int (*P)(); | |
32 | ||
33 | listf = t; | |
34 | P = Putchar; | |
35 | Putchar = t ? listchar : normchar; | |
36 | return (P); | |
37 | } | |
38 | ||
39 | int (* | |
40 | setnumb(t))() | |
41 | bool t; | |
42 | { | |
43 | register int (*P)(); | |
44 | ||
45 | numberf = t; | |
46 | P = Pline; | |
47 | Pline = t ? numbline : normline; | |
48 | return (P); | |
49 | } | |
50 | ||
51 | /* | |
52 | * Format c for list mode; leave things in common | |
53 | * with normal print mode to be done by normchar. | |
54 | */ | |
55 | listchar(c) | |
56 | register short c; | |
57 | { | |
58 | ||
59 | c &= (TRIM|QUOTE); | |
60 | switch (c) { | |
61 | ||
62 | case '\t': | |
63 | case '\b': | |
64 | outchar('^'); | |
65 | c = ctlof(c); | |
66 | break; | |
67 | ||
68 | case '\n': | |
69 | break; | |
70 | ||
71 | case '\n' | QUOTE: | |
72 | outchar('$'); | |
73 | break; | |
74 | ||
75 | default: | |
76 | if (c & QUOTE) | |
77 | break; | |
78 | if (c < ' ' && c != '\n' || c == DELETE) | |
79 | outchar('^'), c = ctlof(c); | |
80 | break; | |
81 | } | |
82 | normchar(c); | |
83 | } | |
84 | ||
85 | /* | |
86 | * Format c for printing. Handle funnies of upper case terminals | |
87 | * and crocky hazeltines which don't have ~. | |
88 | */ | |
89 | normchar(c) | |
90 | register short c; | |
91 | { | |
92 | register char *colp; | |
93 | ||
94 | c &= (TRIM|QUOTE); | |
95 | if (c == '~' && HZ) { | |
96 | normchar('\\'); | |
97 | c = '^'; | |
98 | } | |
99 | if (c & QUOTE) | |
100 | switch (c) { | |
101 | ||
102 | case ' ' | QUOTE: | |
103 | case '\b' | QUOTE: | |
104 | break; | |
105 | ||
106 | case QUOTE: | |
107 | return; | |
108 | ||
109 | default: | |
110 | c &= TRIM; | |
111 | } | |
112 | else if (c < ' ' && (c != '\b' || !OS) && c != '\n' && c != '\t' || c == DELETE) | |
113 | putchar('^'), c = ctlof(c); | |
114 | else if (UPPERCASE) | |
115 | if (isupper(c)) { | |
116 | outchar('\\'); | |
117 | c = tolower(c); | |
118 | } else { | |
119 | colp = "({)}!|^~'`"; | |
120 | while (*colp++) | |
121 | if (c == *colp++) { | |
122 | outchar('\\'); | |
123 | c = colp[-2]; | |
124 | break; | |
125 | } | |
126 | } | |
127 | outchar(c); | |
128 | } | |
129 | ||
130 | /* | |
131 | * Print a line with a number. | |
132 | */ | |
133 | numbline(i) | |
134 | int i; | |
135 | { | |
136 | ||
137 | if (shudclob) | |
138 | slobber(' '); | |
139 | printf("%6d ", i); | |
140 | normline(); | |
141 | } | |
142 | ||
143 | /* | |
144 | * Normal line output, no numbering. | |
145 | */ | |
146 | normline() | |
147 | { | |
148 | register char *cp; | |
149 | ||
150 | if (shudclob) | |
151 | slobber(linebuf[0]); | |
152 | /* pdp-11 doprnt is not reentrant so can't use "printf" here | |
153 | in case we are tracing */ | |
154 | for (cp = linebuf; *cp;) | |
155 | putchar(*cp++); | |
156 | if (!inopen) | |
157 | putchar('\n' | QUOTE); | |
158 | } | |
159 | ||
160 | /* | |
161 | * Given c at the beginning of a line, determine whether | |
162 | * the printing of the line will erase or otherwise obliterate | |
163 | * the prompt which was printed before. If it won't, do it now. | |
164 | */ | |
165 | slobber(c) | |
166 | int c; | |
167 | { | |
168 | ||
169 | shudclob = 0; | |
170 | switch (c) { | |
171 | ||
172 | case '\t': | |
173 | if (Putchar == listchar) | |
174 | return; | |
175 | break; | |
176 | ||
177 | default: | |
178 | return; | |
179 | ||
180 | case ' ': | |
181 | case 0: | |
182 | break; | |
183 | } | |
184 | if (OS) | |
185 | return; | |
186 | flush(); | |
187 | putch(' '); | |
188 | if (BC) | |
189 | tputs(BC, 0, putch); | |
190 | else | |
191 | putch('\b'); | |
192 | } | |
193 | ||
194 | /* | |
195 | * The output buffer is initialized with a useful error | |
196 | * message so we don't have to keep it in data space. | |
197 | */ | |
d266c416 | 198 | static char linb[66]; |
3c7b865a | 199 | char *linp = linb; |
e45f2c96 MH |
200 | |
201 | /* | |
202 | * Phadnl records when we have already had a complete line ending with \n. | |
203 | * If another line starts without a flush, and the terminal suggests it, | |
204 | * we switch into -nl mode so that we can send lineffeeds to avoid | |
205 | * a lot of spacing. | |
206 | */ | |
207 | static bool phadnl; | |
208 | ||
209 | /* | |
210 | * Indirect to current definition of putchar. | |
211 | */ | |
212 | putchar(c) | |
213 | int c; | |
214 | { | |
215 | ||
216 | (*Putchar)(c); | |
217 | } | |
218 | ||
219 | /* | |
220 | * Termchar routine for command mode. | |
221 | * Watch for possible switching to -nl mode. | |
222 | * Otherwise flush into next level of buffering when | |
223 | * small buffer fills or at a newline. | |
224 | */ | |
225 | termchar(c) | |
226 | int c; | |
227 | { | |
228 | ||
229 | if (pfast == 0 && phadnl) | |
230 | pstart(); | |
231 | if (c == '\n') | |
232 | phadnl = 1; | |
233 | else if (linp >= &linb[63]) | |
234 | flush1(); | |
235 | *linp++ = c; | |
236 | if (linp >= &linb[63]) { | |
237 | fgoto(); | |
238 | flush1(); | |
239 | } | |
240 | } | |
241 | ||
242 | flush() | |
243 | { | |
244 | ||
245 | flush1(); | |
246 | flush2(); | |
247 | } | |
248 | ||
249 | /* | |
250 | * Flush from small line buffer into output buffer. | |
251 | * Work here is destroying motion into positions, and then | |
252 | * letting fgoto do the optimized motion. | |
253 | */ | |
254 | flush1() | |
255 | { | |
256 | register char *lp; | |
257 | register short c; | |
258 | ||
259 | *linp = 0; | |
260 | lp = linb; | |
261 | while (*lp) | |
262 | switch (c = *lp++) { | |
263 | ||
264 | case '\r': | |
265 | destline += destcol / COLUMNS; | |
266 | destcol = 0; | |
267 | continue; | |
268 | ||
269 | case '\b': | |
270 | if (destcol) | |
271 | destcol--; | |
272 | continue; | |
273 | ||
274 | case ' ': | |
275 | destcol++; | |
276 | continue; | |
277 | ||
278 | case '\t': | |
279 | destcol += value(TABSTOP) - destcol % value(TABSTOP); | |
280 | continue; | |
281 | ||
282 | case '\n': | |
283 | destline += destcol / COLUMNS + 1; | |
284 | if (destcol != 0 && destcol % COLUMNS == 0) | |
285 | destline--; | |
286 | destcol = 0; | |
287 | continue; | |
288 | ||
289 | default: | |
290 | fgoto(); | |
291 | for (;;) { | |
292 | if (AM == 0 && outcol == COLUMNS) | |
293 | fgoto(); | |
294 | c &= TRIM; | |
295 | putch(c); | |
296 | if (c == '\b') { | |
297 | outcol--; | |
298 | destcol--; | |
299 | } else if (c >= ' ' && c != DELETE) { | |
300 | outcol++; | |
301 | destcol++; | |
302 | if (XN && outcol % COLUMNS == 0) | |
299f2784 | 303 | putch('\r'), putch('\n'); |
e45f2c96 MH |
304 | } |
305 | c = *lp++; | |
306 | if (c <= ' ') | |
307 | break; | |
308 | } | |
309 | --lp; | |
310 | continue; | |
311 | } | |
312 | linp = linb; | |
313 | } | |
314 | ||
315 | flush2() | |
316 | { | |
317 | ||
318 | fgoto(); | |
319 | flusho(); | |
320 | pstop(); | |
321 | } | |
322 | ||
323 | /* | |
324 | * Sync the position of the output cursor. | |
325 | * Most work here is rounding for terminal boundaries getting the | |
326 | * column position implied by wraparound or the lack thereof and | |
327 | * rolling up the screen to get destline on the screen. | |
328 | */ | |
329 | fgoto() | |
330 | { | |
331 | register int l, c; | |
332 | ||
333 | if (destcol > COLUMNS - 1) { | |
334 | destline += destcol / COLUMNS; | |
335 | destcol %= COLUMNS; | |
336 | } | |
337 | if (outcol > COLUMNS - 1) { | |
338 | l = (outcol + 1) / COLUMNS; | |
339 | outline += l; | |
340 | outcol %= COLUMNS; | |
341 | if (AM == 0) { | |
342 | while (l > 0) { | |
343 | if (pfast) | |
d266c416 MH |
344 | if (xCR) |
345 | tputs(xCR, 0, putch); | |
346 | else | |
347 | putch('\r'); | |
348 | if (xNL) | |
349 | tputs(xNL, 0, putch); | |
350 | else | |
351 | putch('\n'); | |
e45f2c96 MH |
352 | l--; |
353 | } | |
354 | outcol = 0; | |
355 | } | |
356 | if (outline > LINES - 1) { | |
357 | destline -= outline - (LINES - 1); | |
358 | outline = LINES - 1; | |
359 | } | |
360 | } | |
361 | if (destline > LINES - 1) { | |
362 | l = destline; | |
363 | destline = LINES - 1; | |
364 | if (outline < LINES - 1) { | |
365 | c = destcol; | |
366 | if (pfast == 0 && (!CA || holdcm)) | |
367 | destcol = 0; | |
368 | fgoto(); | |
369 | destcol = c; | |
370 | } | |
371 | while (l > LINES - 1) { | |
d266c416 MH |
372 | /* |
373 | * The following linefeed (or simulation thereof) | |
374 | * is supposed to scroll up the screen, since we | |
375 | * are on the bottom line. We make the assumption | |
376 | * that linefeed will scroll. If ns is in the | |
377 | * capability list this won't work. We should | |
378 | * probably have an sc capability but sf will | |
379 | * generally take the place if it works. | |
380 | * | |
381 | * Superbee glitch: in the middle of the screen we | |
382 | * have to use esc B (down) because linefeed screws up | |
383 | * in "Efficient Paging" (what a joke) mode (which is | |
384 | * essential in some SB's because CRLF mode puts garbage | |
385 | * in at end of memory), but you must use linefeed to | |
386 | * scroll since down arrow won't go past memory end. | |
387 | * I turned this off after recieving Paul Eggert's | |
388 | * Superbee description which wins better. | |
389 | */ | |
390 | if (xNL /* && !XB */ && pfast) | |
391 | tputs(xNL, 0, putch); | |
392 | else | |
393 | putch('\n'); | |
e45f2c96 MH |
394 | l--; |
395 | if (pfast == 0) | |
396 | outcol = 0; | |
397 | } | |
398 | } | |
399 | if (destline < outline && !(CA && !holdcm || UP != NOSTR)) | |
400 | destline = outline; | |
401 | if (CA && !holdcm) | |
402 | if (plod(costCM) > 0) | |
403 | plod(0); | |
404 | else | |
405 | tputs(tgoto(CM, destcol, destline), 0, putch); | |
406 | else | |
407 | plod(0); | |
408 | outline = destline; | |
409 | outcol = destcol; | |
410 | } | |
411 | ||
412 | /* | |
413 | * Tab to column col by flushing and then setting destcol. | |
414 | * Used by "set all". | |
415 | */ | |
416 | tab(col) | |
417 | int col; | |
418 | { | |
419 | ||
420 | flush1(); | |
421 | destcol = col; | |
422 | } | |
423 | ||
424 | /* | |
425 | * Move (slowly) to destination. | |
426 | * Hard thing here is using home cursor on really deficient terminals. | |
427 | * Otherwise just use cursor motions, hacking use of tabs and overtabbing | |
428 | * and backspace. | |
429 | */ | |
430 | ||
431 | static int plodcnt, plodflg; | |
432 | ||
433 | plodput(c) | |
434 | { | |
435 | ||
436 | if (plodflg) | |
437 | plodcnt--; | |
438 | else | |
439 | putch(c); | |
440 | } | |
441 | ||
442 | plod(cnt) | |
443 | { | |
444 | register int i, j, k; | |
445 | register int soutcol, soutline; | |
446 | ||
447 | plodcnt = plodflg = cnt; | |
448 | soutcol = outcol; | |
449 | soutline = outline; | |
d266c416 MH |
450 | /* |
451 | * Consider homing and moving down/right from there, vs moving | |
452 | * directly with local motions to the right spot. | |
453 | */ | |
e45f2c96 | 454 | if (HO) { |
d266c416 MH |
455 | /* |
456 | * i is the cost to home and tab/space to the right to | |
457 | * get to the proper column. This assumes ND space costs | |
458 | * 1 char. So i+destcol is cost of motion with home. | |
459 | */ | |
e45f2c96 | 460 | if (GT) |
d266c416 | 461 | i = (destcol / value(HARDTABS)) + (destcol % value(HARDTABS)); |
e45f2c96 MH |
462 | else |
463 | i = destcol; | |
d266c416 MH |
464 | /* |
465 | * j is cost to move locally without homing | |
466 | */ | |
467 | if (destcol >= outcol) { /* if motion is to the right */ | |
468 | j = destcol / value(HARDTABS) - outcol / value(HARDTABS); | |
469 | if (GT && j) | |
470 | j += destcol % value(HARDTABS); | |
e45f2c96 MH |
471 | else |
472 | j = destcol - outcol; | |
d266c416 MH |
473 | } else |
474 | /* leftward motion only works if we can backspace. */ | |
e45f2c96 | 475 | if (outcol - destcol <= i && (BS || BC)) |
d266c416 | 476 | i = j = outcol - destcol; /* cheaper to backspace */ |
e45f2c96 | 477 | else |
d266c416 MH |
478 | j = i + 1; /* impossibly expensive */ |
479 | ||
480 | /* k is the absolute value of vertical distance */ | |
e45f2c96 MH |
481 | k = outline - destline; |
482 | if (k < 0) | |
483 | k = -k; | |
484 | j += k; | |
d266c416 MH |
485 | |
486 | /* | |
487 | * Decision. We may not have a choice if no UP. | |
488 | */ | |
489 | if (i + destline < j || (!UP && destline < outline)) { | |
490 | /* | |
491 | * Cheaper to home. Do it now and pretend it's a | |
492 | * regular local motion. | |
493 | */ | |
e45f2c96 MH |
494 | tputs(HO, 0, plodput); |
495 | outcol = outline = 0; | |
496 | } else if (LL) { | |
d266c416 MH |
497 | /* |
498 | * Quickly consider homing down and moving from there. | |
499 | * Assume cost of LL is 2. | |
500 | */ | |
e45f2c96 | 501 | k = (LINES - 1) - destline; |
d266c416 | 502 | if (i + k + 2 < j && (k<=0 || UP)) { |
e45f2c96 MH |
503 | tputs(LL, 0, plodput); |
504 | outcol = 0; | |
505 | outline = LINES - 1; | |
506 | } | |
507 | } | |
d266c416 MH |
508 | } else |
509 | /* | |
510 | * No home and no up means it's impossible, so we return an | |
511 | * incredibly big number to make cursor motion win out. | |
512 | */ | |
513 | if (!UP && destline < outline) | |
514 | return (500); | |
e45f2c96 | 515 | if (GT) |
d266c416 MH |
516 | i = destcol % value(HARDTABS) |
517 | + destcol / value(HARDTABS); | |
e45f2c96 MH |
518 | else |
519 | i = destcol; | |
520 | /* | |
521 | if (BT && outcol > destcol && (j = (((outcol+7) & ~7) - destcol - 1) >> 3)) { | |
522 | j *= (k = strlen(BT)); | |
523 | if ((k += (destcol&7)) > 4) | |
524 | j += 8 - (destcol&7); | |
525 | else | |
526 | j += k; | |
527 | } else | |
528 | */ | |
529 | j = outcol - destcol; | |
530 | /* | |
531 | * If we will later need a \n which will turn into a \r\n by | |
532 | * the system or the terminal, then don't bother to try to \r. | |
533 | */ | |
534 | if ((NONL || !pfast) && outline < destline) | |
535 | goto dontcr; | |
536 | /* | |
537 | * If the terminal will do a \r\n and there isn't room for it, | |
538 | * then we can't afford a \r. | |
539 | */ | |
540 | if (NC && outline >= destline) | |
541 | goto dontcr; | |
542 | /* | |
543 | * If it will be cheaper, or if we can't back up, then send | |
544 | * a return preliminarily. | |
545 | */ | |
546 | if (j > i + 1 || outcol > destcol && !BS && !BC) { | |
d266c416 MH |
547 | /* |
548 | * BUG: this doesn't take the (possibly long) length | |
549 | * of xCR into account. | |
550 | */ | |
551 | if (xCR) | |
552 | tputs(xCR, 0, plodput); | |
553 | else | |
554 | plodput('\r'); | |
e45f2c96 | 555 | if (NC) { |
d266c416 MH |
556 | if (xNL) |
557 | tputs(xNL, 0, plodput); | |
558 | else | |
559 | plodput('\n'); | |
e45f2c96 MH |
560 | outline++; |
561 | } | |
562 | outcol = 0; | |
563 | } | |
564 | dontcr: | |
17687128 | 565 | /* Move down, if necessary, until we are at the desired line */ |
e45f2c96 | 566 | while (outline < destline) { |
17687128 | 567 | j = destline - outline; |
d68a9fd3 | 568 | if (j > costDP && DOWN_PARM) { |
17687128 MH |
569 | /* Win big on Tek 4025 */ |
570 | tputs(tgoto(DOWN_PARM, 0, j), j, plodput); | |
571 | outline += j; | |
572 | } | |
573 | else { | |
574 | outline++; | |
575 | if (xNL && pfast) | |
576 | tputs(xNL, 0, plodput); | |
577 | else | |
578 | plodput('\n'); | |
579 | } | |
e45f2c96 MH |
580 | if (plodcnt < 0) |
581 | goto out; | |
582 | if (NONL || pfast == 0) | |
583 | outcol = 0; | |
584 | } | |
585 | if (BT) | |
17687128 MH |
586 | k = strlen(BT); /* should probably be cost(BT) and moved out */ |
587 | /* Move left, if necessary, to desired column */ | |
e45f2c96 MH |
588 | while (outcol > destcol) { |
589 | if (plodcnt < 0) | |
590 | goto out; | |
e45f2c96 MH |
591 | if (BT && !insmode && outcol - destcol > 4+k) { |
592 | tputs(BT, 0, plodput); | |
593 | outcol--; | |
17687128 | 594 | outcol -= outcol % value(HARDTABS); /* outcol &= ~7; */ |
e45f2c96 MH |
595 | continue; |
596 | } | |
17687128 | 597 | j = outcol - destcol; |
d68a9fd3 | 598 | if (j > costLP && LEFT_PARM) { |
17687128 MH |
599 | tputs(tgoto(LEFT_PARM, 0, j), j, plodput); |
600 | outcol -= j; | |
601 | } | |
602 | else { | |
603 | outcol--; | |
604 | if (BC) | |
605 | tputs(BC, 0, plodput); | |
606 | else | |
607 | plodput('\b'); | |
608 | } | |
e45f2c96 | 609 | } |
17687128 | 610 | /* Move up, if necessary, to desired row */ |
e45f2c96 | 611 | while (outline > destline) { |
17687128 | 612 | j = outline - destline; |
090a8083 | 613 | if (UP_PARM && j > 1) { |
17687128 MH |
614 | /* Win big on Tek 4025 */ |
615 | tputs(tgoto(UP_PARM, 0, j), j, plodput); | |
616 | outline -= j; | |
617 | } | |
618 | else { | |
619 | outline--; | |
620 | tputs(UP, 0, plodput); | |
621 | } | |
e45f2c96 MH |
622 | if (plodcnt < 0) |
623 | goto out; | |
624 | } | |
17687128 MH |
625 | /* |
626 | * Now move to the right, if necessary. We first tab to | |
627 | * as close as we can get. | |
628 | */ | |
e45f2c96 | 629 | if (GT && !insmode && destcol - outcol > 1) { |
17687128 MH |
630 | /* tab to right as far as possible without passing col */ |
631 | for (;;) { | |
632 | i = tabcol(outcol, value(HARDTABS)); | |
633 | if (i > destcol) | |
634 | break; | |
e45f2c96 MH |
635 | if (TA) |
636 | tputs(TA, 0, plodput); | |
637 | else | |
638 | plodput('\t'); | |
639 | outcol = i; | |
640 | } | |
17687128 | 641 | /* consider another tab and then some backspaces */ |
e45f2c96 MH |
642 | if (destcol - outcol > 4 && i < COLUMNS && (BC || BS)) { |
643 | if (TA) | |
644 | tputs(TA, 0, plodput); | |
645 | else | |
646 | plodput('\t'); | |
647 | outcol = i; | |
17687128 MH |
648 | /* |
649 | * Back up. Don't worry about LEFT_PARM because | |
650 | * it's never more than 4 spaces anyway. | |
651 | */ | |
e45f2c96 MH |
652 | while (outcol > destcol) { |
653 | outcol--; | |
654 | if (BC) | |
655 | tputs(BC, 0, plodput); | |
656 | else | |
657 | plodput('\b'); | |
658 | } | |
659 | } | |
660 | } | |
17687128 MH |
661 | /* |
662 | * We've tabbed as much as possible. If we still need to go | |
663 | * further (not exact or can't tab) space over. This is a | |
664 | * very common case when moving to the right with space. | |
665 | */ | |
e45f2c96 | 666 | while (outcol < destcol) { |
17687128 | 667 | j = destcol - outcol; |
d68a9fd3 | 668 | if (j > costRP && RIGHT_PARM) { |
17687128 MH |
669 | /* |
670 | * This probably happens rarely, if at all. | |
671 | * It seems mainly useful for ANSI terminals | |
672 | * with no hardware tabs, and I don't know | |
673 | * of any such terminal at the moment. | |
674 | */ | |
675 | tputs(tgoto(RIGHT_PARM, 0, j), j, plodput); | |
676 | outcol += j; | |
677 | } | |
678 | else { | |
679 | /* | |
680 | * move one char to the right. We don't use ND space | |
681 | * because it's better to just print the char we are | |
682 | * moving over. There are various exceptions, however. | |
683 | * If !inopen, vtube contains garbage. If the char is | |
684 | * a null or a tab we want to print a space. Other | |
685 | * random chars we use space for instead, too. | |
686 | */ | |
687 | if (!inopen || vtube[outline]==NULL || | |
688 | (i=vtube[outline][outcol]) < ' ') | |
689 | i = ' '; | |
690 | if(i & QUOTE) /* mjm: no sign extension on 3B */ | |
691 | i = ' '; | |
692 | if (insmode && ND) | |
693 | tputs(ND, 0, plodput); | |
694 | else | |
695 | plodput(i); | |
696 | outcol++; | |
697 | } | |
e45f2c96 MH |
698 | if (plodcnt < 0) |
699 | goto out; | |
700 | } | |
701 | out: | |
702 | if (plodflg) { | |
703 | outcol = soutcol; | |
704 | outline = soutline; | |
705 | } | |
706 | return(plodcnt); | |
707 | } | |
708 | ||
709 | /* | |
710 | * An input line arrived. | |
711 | * Calculate new (approximate) screen line position. | |
712 | * Approximate because kill character echoes newline with | |
713 | * no feedback and also because of long input lines. | |
714 | */ | |
715 | noteinp() | |
716 | { | |
717 | ||
718 | outline++; | |
719 | if (outline > LINES - 1) | |
720 | outline = LINES - 1; | |
721 | destline = outline; | |
722 | destcol = outcol = 0; | |
723 | } | |
724 | ||
725 | /* | |
726 | * Something weird just happened and we | |
727 | * lost track of whats happening out there. | |
728 | * Since we cant, in general, read where we are | |
729 | * we just reset to some known state. | |
730 | * On cursor addressible terminals setting to unknown | |
731 | * will force a cursor address soon. | |
732 | */ | |
733 | termreset() | |
734 | { | |
735 | ||
736 | endim(); | |
737 | if (TI) /* otherwise it flushes anyway, and 'set tty=dumb' vomits */ | |
738 | putpad(TI); /*adb change -- emit terminal initial sequence */ | |
739 | destcol = 0; | |
740 | destline = LINES - 1; | |
741 | if (CA) { | |
742 | outcol = UKCOL; | |
743 | outline = UKCOL; | |
744 | } else { | |
745 | outcol = destcol; | |
746 | outline = destline; | |
747 | } | |
748 | } | |
749 | ||
750 | /* | |
751 | * Low level buffering, with the ability to drain | |
752 | * buffered output without printing it. | |
753 | */ | |
754 | char *obp = obuf; | |
755 | ||
756 | draino() | |
757 | { | |
758 | ||
759 | obp = obuf; | |
760 | } | |
761 | ||
762 | flusho() | |
763 | { | |
764 | ||
765 | if (obp != obuf) { | |
766 | write(1, obuf, obp - obuf); | |
767 | obp = obuf; | |
768 | } | |
769 | } | |
770 | ||
771 | putnl() | |
772 | { | |
773 | ||
774 | putchar('\n'); | |
775 | } | |
776 | ||
777 | putS(cp) | |
778 | char *cp; | |
779 | { | |
780 | ||
781 | if (cp == NULL) | |
782 | return; | |
783 | while (*cp) | |
784 | putch(*cp++); | |
785 | } | |
786 | ||
787 | ||
788 | putch(c) | |
789 | int c; | |
790 | { | |
791 | ||
299f2784 MH |
792 | #ifdef OLD3BTTY /* mjm */ |
793 | if(c == '\n') /* mjm: Fake "\n\r" for '\n' til fix in 3B firmware */ | |
794 | putch('\r'); /* mjm: vi does "stty -icanon" => -onlcr !! */ | |
795 | #endif | |
d266c416 | 796 | *obp++ = c & 0177; |
e45f2c96 MH |
797 | if (obp >= &obuf[sizeof obuf]) |
798 | flusho(); | |
799 | } | |
800 | ||
801 | /* | |
802 | * Miscellaneous routines related to output. | |
803 | */ | |
804 | ||
e45f2c96 MH |
805 | /* |
806 | * Put with padding | |
807 | */ | |
808 | putpad(cp) | |
809 | char *cp; | |
810 | { | |
811 | ||
812 | flush(); | |
813 | tputs(cp, 0, putch); | |
814 | } | |
815 | ||
816 | /* | |
817 | * Set output through normal command mode routine. | |
818 | */ | |
819 | setoutt() | |
820 | { | |
821 | ||
822 | Outchar = termchar; | |
823 | } | |
824 | ||
825 | /* | |
826 | * Printf (temporarily) in list mode. | |
827 | */ | |
828 | /*VARARGS2*/ | |
829 | lprintf(cp, dp) | |
830 | char *cp, *dp; | |
831 | { | |
832 | register int (*P)(); | |
833 | ||
834 | P = setlist(1); | |
835 | printf(cp, dp); | |
836 | Putchar = P; | |
837 | } | |
838 | ||
839 | /* | |
840 | * Newline + flush. | |
841 | */ | |
842 | putNFL() | |
843 | { | |
844 | ||
845 | putnl(); | |
846 | flush(); | |
847 | } | |
848 | ||
849 | /* | |
850 | * Try to start -nl mode. | |
851 | */ | |
852 | pstart() | |
853 | { | |
854 | ||
855 | if (NONL) | |
856 | return; | |
857 | if (!value(OPTIMIZE)) | |
858 | return; | |
859 | if (ruptible == 0 || pfast) | |
860 | return; | |
861 | fgoto(); | |
862 | flusho(); | |
863 | pfast = 1; | |
864 | normtty++; | |
d266c416 | 865 | #ifndef USG3TTY |
e45f2c96 | 866 | tty.sg_flags = normf & ~(ECHO|XTABS|CRMOD); |
d266c416 MH |
867 | #else |
868 | tty = normf; | |
869 | tty.c_oflag &= ~(ONLCR|TAB3); | |
870 | tty.c_lflag &= ~ECHO; | |
871 | #endif | |
e45f2c96 MH |
872 | sTTY(1); |
873 | } | |
874 | ||
875 | /* | |
876 | * Stop -nl mode. | |
877 | */ | |
878 | pstop() | |
879 | { | |
880 | ||
881 | if (inopen) | |
882 | return; | |
883 | phadnl = 0; | |
884 | linp = linb; | |
885 | draino(); | |
886 | normal(normf); | |
887 | pfast &= ~1; | |
888 | } | |
889 | ||
890 | /* | |
891 | * Prep tty for open mode. | |
892 | */ | |
d266c416 | 893 | ttymode |
e45f2c96 MH |
894 | ostart() |
895 | { | |
d266c416 | 896 | ttymode f; |
e45f2c96 MH |
897 | |
898 | if (!intty) | |
899 | error("Open and visual must be used interactively"); | |
900 | gTTY(1); | |
901 | normtty++; | |
d266c416 | 902 | #ifndef USG3TTY |
e45f2c96 | 903 | f = tty.sg_flags; |
d266c416 MH |
904 | tty.sg_flags = (normf &~ (ECHO|XTABS|CRMOD)) | |
905 | # ifdef CBREAK | |
906 | CBREAK; | |
907 | # else | |
908 | RAW; | |
909 | # endif | |
910 | # ifdef TIOCGETC | |
911 | ttcharoff(); | |
912 | # endif | |
e45f2c96 | 913 | #else |
d266c416 MH |
914 | f = tty; |
915 | tty = normf; | |
916 | tty.c_iflag &= ~ICRNL; | |
917 | tty.c_lflag &= ~(ECHO|ICANON); | |
14382c50 | 918 | tty.c_oflag &= ~(TAB3|ONLCR); |
d266c416 MH |
919 | tty.c_cc[VMIN] = 1; |
920 | tty.c_cc[VTIME] = 1; | |
921 | ttcharoff(); | |
e45f2c96 MH |
922 | #endif |
923 | sTTY(1); | |
d266c416 | 924 | tostart(); |
e45f2c96 MH |
925 | pfast |= 2; |
926 | return (f); | |
927 | } | |
928 | ||
d266c416 MH |
929 | /* actions associated with putting the terminal in open mode */ |
930 | tostart() | |
931 | { | |
932 | putpad(VS); | |
933 | putpad(KS); | |
9cc49269 MH |
934 | if (!value(MESG)) { |
935 | if (ttynbuf[0] == 0) { | |
936 | register char *tn; | |
937 | if ((tn=ttyname(2)) == NULL && | |
938 | (tn=ttyname(1)) == NULL && | |
939 | (tn=ttyname(0)) == NULL) | |
940 | ttynbuf[0] = 1; | |
941 | else | |
942 | strcpy(ttynbuf, tn); | |
943 | } | |
944 | if (ttynbuf[0] != 1) { | |
945 | struct stat sbuf; | |
946 | stat(ttynbuf, &sbuf); | |
947 | ttymesg = sbuf.st_mode & 0777; | |
948 | chmod(ttynbuf, | |
949 | #ifdef UCBV7 | |
950 | /* | |
951 | * This applies to the UCB V7 Pdp-11 system with the | |
952 | * -u write option only. | |
953 | */ | |
954 | 0611 /* 11 = urgent only allowed */ | |
955 | #else | |
956 | 0600 | |
957 | #endif | |
958 | ); | |
959 | } | |
960 | } | |
d266c416 MH |
961 | } |
962 | ||
963 | /* | |
964 | * Turn off start/stop chars if they aren't the default ^S/^Q. | |
965 | * This is so idiots who make esc their start/stop don't lose. | |
966 | * We always turn off quit since datamedias send ^\ for their | |
967 | * right arrow key. | |
968 | */ | |
969 | #ifdef TIOCGETC | |
970 | ttcharoff() | |
971 | { | |
972 | nttyc.t_quitc = '\377'; | |
973 | if (nttyc.t_startc != CTRL(q)) | |
974 | nttyc.t_startc = '\377'; | |
975 | if (nttyc.t_stopc != CTRL(s)) | |
976 | nttyc.t_stopc = '\377'; | |
977 | # ifdef TIOCLGET | |
978 | nlttyc.t_suspc = '\377'; /* ^Z */ | |
979 | nlttyc.t_dsuspc = '\377'; /* ^Y */ | |
980 | nlttyc.t_flushc = '\377'; /* ^O */ | |
981 | nlttyc.t_lnextc = '\377'; /* ^V */ | |
982 | # endif | |
983 | } | |
984 | #endif | |
985 | ||
986 | #ifdef USG3TTY | |
987 | ttcharoff() | |
988 | { | |
989 | tty.c_cc[VQUIT] = '\377'; | |
990 | # ifdef VSTART | |
991 | /* | |
992 | * The following is sample code if USG ever lets people change | |
993 | * their start/stop chars. As long as they can't we can't get | |
994 | * into trouble so we just leave them alone. | |
995 | */ | |
996 | if (tty.c_cc[VSTART] != CTRL(q)) | |
997 | tty.c_cc[VSTART] = '\377'; | |
998 | if (tty.c_cc[VSTOP] != CTRL(s)) | |
999 | tty.c_cc[VSTOP] = '\377'; | |
1000 | # endif | |
1001 | } | |
1002 | #endif | |
1003 | ||
e45f2c96 MH |
1004 | /* |
1005 | * Stop open, restoring tty modes. | |
1006 | */ | |
1007 | ostop(f) | |
d266c416 | 1008 | ttymode f; |
e45f2c96 MH |
1009 | { |
1010 | ||
d266c416 | 1011 | #ifndef USG3TTY |
e45f2c96 | 1012 | pfast = (f & CRMOD) == 0; |
d266c416 | 1013 | #else |
3c7b865a | 1014 | pfast = (f.c_oflag & ONLCR) == 0; |
d266c416 | 1015 | #endif |
e45f2c96 MH |
1016 | termreset(), fgoto(), flusho(); |
1017 | normal(f); | |
d266c416 MH |
1018 | tostop(); |
1019 | } | |
1020 | ||
1021 | /* Actions associated with putting the terminal in the right mode. */ | |
1022 | tostop() | |
1023 | { | |
e45f2c96 MH |
1024 | putpad(VE); |
1025 | putpad(KE); | |
c2480b3f | 1026 | if (!value(MESG) && ttynbuf[0]>1) |
d266c416 | 1027 | chmod(ttynbuf, ttymesg); |
e45f2c96 MH |
1028 | } |
1029 | ||
1030 | #ifndef CBREAK | |
1031 | /* | |
1032 | * Into cooked mode for interruptibility. | |
1033 | */ | |
1034 | vcook() | |
1035 | { | |
1036 | ||
1037 | tty.sg_flags &= ~RAW; | |
1038 | sTTY(1); | |
1039 | } | |
1040 | ||
1041 | /* | |
1042 | * Back into raw mode. | |
1043 | */ | |
1044 | vraw() | |
1045 | { | |
1046 | ||
1047 | tty.sg_flags |= RAW; | |
1048 | sTTY(1); | |
1049 | } | |
1050 | #endif | |
1051 | ||
1052 | /* | |
1053 | * Restore flags to normal state f. | |
1054 | */ | |
1055 | normal(f) | |
d266c416 | 1056 | ttymode f; |
e45f2c96 MH |
1057 | { |
1058 | ||
1059 | if (normtty > 0) { | |
1060 | setty(f); | |
1061 | normtty--; | |
1062 | } | |
1063 | } | |
1064 | ||
1065 | /* | |
1066 | * Straight set of flags to state f. | |
1067 | */ | |
d266c416 | 1068 | ttymode |
e45f2c96 | 1069 | setty(f) |
d266c416 | 1070 | ttymode f; |
e45f2c96 | 1071 | { |
d266c416 | 1072 | #ifndef USG3TTY |
e45f2c96 | 1073 | register int ot = tty.sg_flags; |
d266c416 MH |
1074 | #else |
1075 | ttymode ot; | |
1076 | ot = tty; | |
1077 | #endif | |
e45f2c96 | 1078 | |
d266c416 MH |
1079 | #ifndef USG3TTY |
1080 | if (f == normf) { | |
e45f2c96 | 1081 | nttyc = ottyc; |
d266c416 MH |
1082 | # ifdef TIOCLGET |
1083 | nlttyc = olttyc; | |
1084 | # endif | |
1085 | } else | |
1086 | ttcharoff(); | |
e45f2c96 | 1087 | tty.sg_flags = f; |
d266c416 MH |
1088 | #else |
1089 | if (tty.c_lflag & ICANON) | |
1090 | ttcharoff(); | |
1091 | tty = f; | |
1092 | #endif | |
e45f2c96 MH |
1093 | sTTY(1); |
1094 | return (ot); | |
1095 | } | |
1096 | ||
1097 | gTTY(i) | |
1098 | int i; | |
1099 | { | |
1100 | ||
d266c416 | 1101 | #ifndef USG3TTY |
e45f2c96 | 1102 | ignore(gtty(i, &tty)); |
d266c416 | 1103 | # ifdef TIOCGETC |
e45f2c96 MH |
1104 | ioctl(i, TIOCGETC, &ottyc); |
1105 | nttyc = ottyc; | |
d266c416 | 1106 | # endif |
bdbbb330 | 1107 | # ifdef TIOCGLTC |
d266c416 MH |
1108 | ioctl(i, TIOCGLTC, &olttyc); |
1109 | nlttyc = olttyc; | |
1110 | # endif | |
1111 | #else | |
1112 | ioctl(i, TCGETA, &tty); | |
e45f2c96 MH |
1113 | #endif |
1114 | } | |
1115 | ||
d266c416 MH |
1116 | /* |
1117 | * sTTY: set the tty modes on file descriptor i to be what's | |
1118 | * currently in global "tty". (Also use nttyc if needed.) | |
1119 | */ | |
e45f2c96 MH |
1120 | sTTY(i) |
1121 | int i; | |
1122 | { | |
1123 | ||
d266c416 MH |
1124 | #ifndef USG3TTY |
1125 | # ifdef USG | |
1126 | /* Bug in USG tty driver, put out a DEL as a patch. */ | |
1127 | if (tty.sg_ospeed >= B1200) | |
1128 | write(1, "\377", 1); | |
1129 | # endif | |
1130 | ||
1131 | # ifdef TIOCSETN | |
1132 | /* Don't flush typeahead if we don't have to */ | |
e45f2c96 | 1133 | ioctl(i, TIOCSETN, &tty); |
d266c416 MH |
1134 | # else |
1135 | /* We have to. Too bad. */ | |
e45f2c96 | 1136 | stty(i, &tty); |
d266c416 MH |
1137 | # endif |
1138 | ||
1139 | # ifdef TIOCGETC | |
1140 | /* Update the other random chars while we're at it. */ | |
e45f2c96 | 1141 | ioctl(i, TIOCSETC, &nttyc); |
d266c416 | 1142 | # endif |
bdbbb330 | 1143 | # ifdef TIOCSLTC |
d266c416 MH |
1144 | ioctl(i, TIOCSLTC, &nlttyc); |
1145 | # endif | |
1146 | ||
1147 | #else | |
1148 | /* USG 3 very simple: just set everything */ | |
1149 | ioctl(i, TCSETAW, &tty); | |
e45f2c96 MH |
1150 | #endif |
1151 | } | |
1152 | ||
1153 | /* | |
1154 | * Print newline, or blank if in open/visual | |
1155 | */ | |
1156 | noonl() | |
1157 | { | |
1158 | ||
1159 | putchar(Outchar != termchar ? ' ' : '\n'); | |
1160 | } |