Commit | Line | Data |
---|---|---|
56cd5299 BJ |
1 | # include <stdio.h> |
2 | /* | |
3 | * vsort - Sort troff output for versatec to reduce amount of reverse leading | |
4 | */ | |
5 | ||
6 | #define NULL 0 | |
7 | ||
8 | double atof(); | |
9 | char *calloc(); | |
10 | ||
11 | FILE *in,*out; | |
12 | ||
13 | int skipfirst = 1; /* skip the first leading so start at top of page */ | |
14 | int cpsize = 02; /* Funny sizes */ | |
15 | struct point_sizes | |
16 | { | |
17 | int stupid_code; | |
18 | int real_code; | |
19 | } point_sizes[] = | |
20 | { | |
21 | 010, 6, | |
22 | 0, 7, | |
23 | 01, 8, | |
24 | 07, 9, | |
25 | 02, 10, | |
26 | 03, 11, | |
27 | 04, 12, | |
28 | 05, 14, | |
29 | 0211, 16, | |
30 | 06, 18, | |
31 | 0212, 20, | |
32 | 0213, 22, | |
33 | 0214, 24, | |
34 | 0215, 28, | |
35 | 0216, 36, | |
36 | 0, 0 | |
37 | }; | |
38 | ||
39 | int pagelength = 144 * 11; /* in Leading units */ | |
40 | int pagemod; /* horizontal page number (for versatec) */ | |
41 | #define MODOFF 3672 /* 432 * 8.5 */ | |
42 | ||
43 | int esc, lead, back, verd, mcase, railmag; | |
44 | int col, row; | |
45 | int pstart = 0; /* Means a startline is pending */ | |
46 | ||
47 | int oback, omcase, orailmag, ocol, orow; | |
48 | int opsize = 02; | |
49 | ||
50 | struct lstate | |
51 | { | |
52 | int col; | |
53 | int psize; | |
54 | char railmag; | |
55 | char verd; | |
56 | char back; | |
57 | char mcase; | |
58 | }; | |
59 | ||
60 | struct line | |
61 | { | |
62 | struct line *nextp; | |
63 | struct line *lastp; | |
64 | int len; | |
65 | int row; | |
66 | struct lstate start; | |
67 | struct lstate end; | |
68 | char *codep; | |
69 | }; | |
70 | ||
71 | struct line *head; | |
72 | struct line *tail; | |
73 | struct line cline; | |
74 | ||
75 | #define TBUFLEN 1024 | |
76 | char *codep; | |
77 | char tbuf[TBUFLEN]; | |
78 | ||
79 | char wide = 0; | |
80 | char nocutmarks = 0; /* Remove lines that seem to be cut marks. */ | |
81 | ||
82 | #define iscutmark(ch) (ch == 023 || ch == 040 || ch == 061) | |
83 | main(argc, argv) | |
84 | int argc; | |
85 | char *argv[]; | |
86 | { | |
87 | register i; | |
88 | ||
89 | for(i = 3; i < 15; i++) | |
90 | close(i); | |
91 | while (argc > 1 && argv[1][0] == '-') { | |
92 | switch (argv[1][1]) { | |
93 | case 'l': { | |
94 | float f = 144 * atof(argv[1] + 2); | |
95 | if (f < 144) { | |
96 | error("bad length"); | |
97 | exit(1); | |
98 | } | |
99 | pagelength = f; | |
100 | break; | |
101 | } | |
102 | ||
103 | case 'W': | |
104 | wide++; | |
105 | break; | |
106 | ||
107 | case 'c': | |
108 | nocutmarks++; | |
109 | break; | |
110 | } | |
111 | argc--; argv++; | |
112 | } | |
113 | out = stdout; | |
114 | if(argc > 1) | |
115 | { | |
116 | while(--argc) | |
117 | { | |
118 | argv++; | |
119 | if((in=fopen(argv[0], "r")) == NULL) | |
120 | perror("vsort"); | |
121 | else { | |
122 | ofile(); | |
123 | fclose(in); | |
124 | } | |
125 | } | |
126 | } | |
127 | else | |
128 | { | |
129 | in = stdin; | |
130 | ofile(); | |
131 | } | |
132 | exit(0); | |
133 | } | |
134 | ||
135 | ofile() | |
136 | { | |
137 | register int c; | |
138 | static int initialized; | |
139 | ||
140 | while((c = getch()) != -1) { | |
141 | if(!c) | |
142 | continue; | |
143 | if(c & 0200) /* escape (left/right) */ | |
144 | { | |
145 | if(!pstart) | |
146 | stuffc(c); | |
147 | esc += (~c) & 0177; | |
148 | continue; | |
149 | } | |
150 | if(esc) | |
151 | { | |
152 | if(back) | |
153 | esc = -esc; | |
154 | col += esc; | |
155 | esc = 0; | |
156 | } | |
157 | if((c & 0377) < 0100) /* Purely for efficiency */ | |
158 | goto normal_char; | |
159 | switch(c) { | |
160 | case 0100: | |
161 | if(initialized++) { | |
162 | termline(); | |
163 | linesflush(); /* Omit trailing leading. */ | |
164 | return; | |
165 | } | |
166 | row = 0; | |
167 | col = 0; esc = 0; | |
168 | lead = 0; | |
169 | verd = 0; back = 0; mcase = 0; | |
170 | railmag = 0; | |
171 | ocol = 0; | |
172 | orow = 0; | |
173 | oback = 0; omcase = 0; | |
174 | orailmag = 0; | |
175 | if(loadfont(railmag, cpsize) < 0) | |
176 | error("init"); | |
177 | startline(); | |
178 | putc(0100, out); /* Dont stuff it guys */ | |
179 | break; | |
180 | case 0101: /* lower rail */ | |
181 | crail(railmag &= ~01); | |
182 | if(!pstart) | |
183 | stuffc(c); | |
184 | break; | |
185 | case 0102: /* upper rail */ | |
186 | crail(railmag |= 01); | |
187 | if(!pstart) | |
188 | stuffc(c); | |
189 | break; | |
190 | case 0103: /* upper mag */ | |
191 | crail(railmag |= 02); | |
192 | if(!pstart) | |
193 | stuffc(c); | |
194 | break; | |
195 | case 0104: /* lower mag */ | |
196 | crail(railmag &= ~02); | |
197 | if(!pstart) | |
198 | stuffc(c); | |
199 | break; | |
200 | case 0105: /* lower case */ | |
201 | mcase = 0; | |
202 | if(!pstart) | |
203 | stuffc(c); | |
204 | break; | |
205 | case 0106: /* upper case */ | |
206 | mcase = 1; | |
207 | if(!pstart) | |
208 | stuffc(c); | |
209 | break; | |
210 | case 0107: /* escape forward */ | |
211 | back = 0; | |
212 | if(!pstart) | |
213 | stuffc(c); | |
214 | break; | |
215 | case 0110: /* escape backwards */ | |
216 | back = 1; | |
217 | if(!pstart) | |
218 | stuffc(c); | |
219 | break; | |
220 | case 0111: /* stop */ | |
221 | stuffc(c); | |
222 | break; | |
223 | case 0112: /* lead forward */ | |
224 | verd = 0; | |
225 | break; | |
226 | case 0113: /* undefined */ | |
227 | break; | |
228 | case 0114: /* lead backward */ | |
229 | verd = 1; | |
230 | break; | |
231 | case 0115: /* undefined */ | |
232 | case 0116: | |
233 | case 0117: | |
234 | break; | |
235 | default: | |
236 | if((c & 0340) == 0140) /* leading */ | |
237 | { | |
238 | termline(); | |
239 | lead = (~c) & 037; | |
240 | if(verd) | |
241 | lead = -lead; | |
242 | if (skipfirst > 0) { | |
243 | skipfirst--; | |
244 | continue; | |
245 | } | |
246 | row += lead; | |
247 | if (row >= pagelength) { | |
248 | if (wide) { | |
249 | if (pagemod == 3) { | |
250 | allflush(); | |
251 | col %= MODOFF; | |
252 | pagemod = 0; | |
253 | } else { | |
254 | pagemod++; | |
255 | col += MODOFF; | |
256 | row -= pagelength; | |
257 | } | |
258 | } else { | |
259 | allflush(); | |
260 | } | |
261 | } | |
262 | if (wide && row < 0 && pagemod) { | |
263 | pagemod--; | |
264 | col -= MODOFF; | |
265 | row += pagelength; | |
266 | } | |
267 | pstart++; | |
268 | continue; | |
269 | } | |
270 | if((c & 0360) == 0120) /* size change */ | |
271 | { | |
272 | if(!pstart) | |
273 | stuffc(c); | |
274 | col += stupidadj(c & 017, cpsize); | |
275 | loadfont(railmag, c & 017); | |
276 | continue; | |
277 | } | |
278 | if(c & 0300) | |
279 | continue; | |
280 | normal_char: | |
281 | c = (c & 077); | |
282 | stuffc(c); | |
283 | } | |
284 | } /* End of while loop reading chars. */ | |
285 | termline(); | |
286 | linesflush(); /* don't put out trailing leading. */ | |
287 | } | |
288 | ||
289 | ||
290 | int peekc; | |
291 | getch() { | |
292 | register c; | |
293 | if(peekc) { | |
294 | c = peekc; | |
295 | peekc = 0; | |
296 | return(c); | |
297 | } | |
298 | return(getc(in)); | |
299 | } | |
300 | ||
301 | ungetc(c) { | |
302 | peekc = c; | |
303 | } | |
304 | ||
305 | ||
306 | error(s) | |
307 | char *s; | |
308 | { | |
309 | ||
310 | fflush(out); | |
311 | fprintf(stderr, stderr, "vsort: %s\n", s); | |
312 | } | |
313 | ||
314 | crail(nrail) | |
315 | register int nrail; | |
316 | { | |
317 | register int psize; | |
318 | ||
319 | psize = cpsize; | |
320 | loadfont(nrail, psize); | |
321 | } | |
322 | ||
323 | loadfont(fnum, size) | |
324 | register int fnum; | |
325 | register int size; | |
326 | { | |
327 | ||
328 | cpsize = size; | |
329 | return(0); | |
330 | } | |
331 | ||
332 | startline() | |
333 | { | |
334 | ||
335 | if(pstart != 0) { | |
336 | cline.row = row; | |
337 | return; | |
338 | } | |
339 | cline.len = 0; | |
340 | cline.row = row; | |
341 | cline.start.col = col; | |
342 | cline.start.psize = cpsize; | |
343 | cline.start.mcase = mcase; | |
344 | cline.start.back = back; | |
345 | cline.start.verd = verd; | |
346 | cline.start.railmag = railmag; | |
347 | codep = tbuf; | |
348 | } | |
349 | ||
350 | termline() | |
351 | { | |
352 | register struct line *linep; | |
353 | register char *allp; | |
354 | register char *cp; | |
355 | int i; | |
356 | ||
357 | if(pstart != 0) | |
358 | return; | |
359 | if((allp = calloc(sizeof *linep,1)) == ((char *)-1)) | |
360 | error("alloc"); | |
361 | linep = (struct line *)allp; | |
362 | linep->end.col = col; | |
363 | linep->end.psize = cpsize; | |
364 | linep->end.mcase = mcase; | |
365 | linep->end.back = back; | |
366 | linep->end.verd = verd; | |
367 | linep->end.railmag = railmag; | |
368 | linep->start.col = cline.start.col; | |
369 | linep->start.psize = cline.start.psize; | |
370 | linep->start.mcase = cline.start.mcase; | |
371 | linep->start.back = cline.start.back; | |
372 | linep->start.verd = cline.start.verd; | |
373 | linep->start.railmag = cline.start.railmag; | |
374 | linep->len = cline.len; | |
375 | linep->row = row; | |
376 | if((allp = calloc(cline.len,1)) == ((char *)-1)) | |
377 | error("alloc"); | |
378 | linep->codep = allp; | |
379 | cp = tbuf; | |
380 | for(i = 0; i < cline.len; i++) | |
381 | *allp++ = *cp++; | |
382 | sortin(linep); | |
383 | } | |
384 | ||
385 | sortin(linep) | |
386 | register struct line *linep; | |
387 | { | |
388 | register struct line *clp; | |
389 | ||
390 | if((clp = tail) == NULL) { | |
391 | head = tail = linep; | |
392 | linep->lastp = linep->nextp = NULL; | |
393 | return; | |
394 | } | |
395 | while(clp != NULL && clp->row > linep->row) | |
396 | clp = clp->lastp; | |
397 | if(clp == tail) { | |
398 | linep->lastp = tail; | |
399 | linep->nextp = NULL; | |
400 | tail->nextp = linep; | |
401 | tail = linep; | |
402 | } else | |
403 | if(clp == NULL) /* goes at head of list */ { | |
404 | linep->lastp = NULL; | |
405 | linep->nextp = head; | |
406 | head->lastp = linep; | |
407 | head = linep; | |
408 | } else { | |
409 | linep->lastp = clp; | |
410 | linep->nextp = clp->nextp; | |
411 | clp->nextp->lastp = linep; | |
412 | clp->nextp = linep; | |
413 | } | |
414 | } | |
415 | ||
416 | stuffc(code) | |
417 | register int code; | |
418 | { | |
419 | ||
420 | if(pstart != 0) { | |
421 | pstart = 0; | |
422 | startline(); | |
423 | } | |
424 | if(cline.len > TBUFLEN) { | |
425 | termline(); | |
426 | startline(); | |
427 | } | |
428 | *codep++ = code; | |
429 | cline.len++; | |
430 | } | |
431 | ||
432 | ||
433 | allflush() /* Flush all lines, then put out trailing leading. */ | |
434 | { | |
435 | ||
436 | linesflush(); | |
437 | if (row > orow) { | |
438 | ptlead(row - orow); | |
439 | } | |
440 | row -= pagelength; | |
441 | orow = row; | |
442 | } | |
443 | ||
444 | linesflush() | |
445 | { | |
446 | while(head != NULL) | |
447 | sendline(); | |
448 | } | |
449 | ||
450 | sendline() | |
451 | { | |
452 | register char *cp; | |
453 | register struct line *linep; | |
454 | register int i; | |
455 | register int remcutmark; | |
456 | ||
457 | if ((linep = head) == NULL) | |
458 | return; | |
459 | ||
460 | /* Heuristic: if cut marks are present, they are on lines whose | |
461 | * row numbers are <= 24 or >= pagelength-4. | |
462 | * Cut marks are formed from 023's, 040's, or 061's. | |
463 | * There are 2 or 4 of them on a line, and no other characters | |
464 | * are present. cutmark(...) checks this. | |
465 | * Cutmark lines are removed if nocutmarks is true. | |
466 | * Three leading units are removed, too, to compensate for | |
467 | * varian output not being exactly 1584 leading units long. | |
468 | */ | |
469 | #ifdef DUMPLINE | |
470 | dumpline(linep); | |
471 | #endif | |
472 | remcutmark = 0; | |
473 | if (nocutmarks | |
474 | && (linep->row <= 24 || linep->row >= pagelength-4) | |
475 | && cutmark(linep)) { | |
476 | remcutmark++; | |
477 | orow = orow + 3; | |
478 | } | |
479 | if(linep->start.railmag != orailmag) | |
480 | ptrail(linep->start.railmag); | |
481 | if(linep->start.psize != opsize) | |
482 | ptsize(linep->start.psize); | |
483 | if(linep->start.mcase != omcase) | |
484 | ptmcase(); | |
485 | if(linep->row > orow) /* lead forward */ | |
486 | ptlead(linep->row - orow); | |
487 | if(linep->start.col != ocol) | |
488 | ptesc(linep->start.col-ocol); | |
489 | if(linep->start.back != oback) | |
490 | ptback(); | |
491 | cp = linep->codep; | |
492 | if (remcutmark) { | |
493 | for(i = 0; i < linep->len; i++) { | |
494 | if (!iscutmark(*cp)) /* iscutmark is a macro. */ | |
495 | putc(*cp++, out); | |
496 | else | |
497 | cp++; | |
498 | } | |
499 | } else { | |
500 | for(i = 0; i < linep->len; i++) | |
501 | putc(*cp++, out); | |
502 | } | |
503 | ||
504 | orow = linep->row; | |
505 | orailmag = linep->end.railmag; | |
506 | opsize = linep->end.psize; | |
507 | omcase = linep->end.mcase; | |
508 | ocol = linep->end.col; | |
509 | oback = linep->end.back; | |
510 | head = linep->nextp; | |
511 | ||
512 | cfree(linep->codep); | |
513 | cfree(linep); | |
514 | if(head == NULL) | |
515 | tail = NULL; | |
516 | else | |
517 | head->lastp = NULL; | |
518 | } | |
519 | ||
520 | int | |
521 | cutmark(linep) | |
522 | register struct line *linep; | |
523 | { | |
524 | register int i; | |
525 | register int ch; | |
526 | register int dashcount = 0; | |
527 | register int firstdash = 0; | |
528 | ||
529 | for (i = 0; i < linep->len; i++) { | |
530 | ch = linep->codep[i] & 0377; | |
531 | if (ch < 0100) { | |
532 | if (iscutmark(ch)) { | |
533 | if (firstdash == 0) | |
534 | firstdash = ch; | |
535 | if (ch != firstdash) | |
536 | return (0); | |
537 | dashcount++; | |
538 | } else | |
539 | return(0); | |
540 | } | |
541 | } | |
542 | /* Must have 2 or 4 dashes on a line. */ | |
543 | return (dashcount == 4 || dashcount == 2); | |
544 | } | |
545 | ||
546 | ptrail(rlmg) | |
547 | register int rlmg; | |
548 | { | |
549 | ||
550 | if((rlmg & 01) != (orailmag & 01)) | |
551 | putc((rlmg & 01) ? 0102:0101, out); /* rail */ | |
552 | if((rlmg & 02) != (orailmag & 02)) | |
553 | putc((rlmg & 02) ? 0103:0104, out); /* mag */ | |
554 | } | |
555 | ||
556 | ptback() | |
557 | { | |
558 | ||
559 | putc(oback ? 0107:0110, out); | |
560 | oback = !oback; | |
561 | } | |
562 | ||
563 | ptsize(size) | |
564 | register int size; | |
565 | { | |
566 | ||
567 | putc(0120 | (size & 017), out); | |
568 | ptesc(-stupidadj(size, opsize)); | |
569 | } | |
570 | ||
571 | stupidadj(code, lcode) | |
572 | register int code; | |
573 | int lcode; | |
574 | { | |
575 | register struct point_sizes *psp; | |
576 | register struct point_sizes *lpsp; | |
577 | ||
578 | psp = point_sizes; | |
579 | while(psp->real_code != 0) { | |
580 | if((psp->stupid_code & 017) == code) | |
581 | break; | |
582 | psp++; | |
583 | } | |
584 | lpsp = point_sizes; | |
585 | while(lpsp->real_code != 0) { | |
586 | if((lpsp->stupid_code & 017) == lcode) | |
587 | break; | |
588 | lpsp++; | |
589 | } | |
590 | code = 0; | |
591 | if(!(lpsp->stupid_code & 0200) && (psp->stupid_code & 0200)) | |
592 | code = -55; | |
593 | else | |
594 | if((lpsp->stupid_code & 0200) && !(psp->stupid_code & 0200)) | |
595 | code = 55; | |
596 | return(code); | |
597 | } | |
598 | ||
599 | ptmcase() | |
600 | { | |
601 | ||
602 | putc(omcase ? 0105:0106, out); | |
603 | } | |
604 | ||
605 | ptesc(escc) | |
606 | register int escc; | |
607 | { | |
608 | ||
609 | if((escc < 0 && !oback ) || (escc >= 0 && oback)) | |
610 | ptback(); | |
611 | escc = abs(escc); | |
612 | while(escc > 0177) { | |
613 | putc(0200, out); | |
614 | escc -= 0177; | |
615 | } | |
616 | if(escc) | |
617 | putc(0200 | ((~escc) & 0177), out); | |
618 | } | |
619 | ||
620 | ptlead(leadd) | |
621 | register int leadd; | |
622 | { | |
623 | ||
624 | while(leadd > 037) { | |
625 | putc(0140, out); | |
626 | leadd -= 037; | |
627 | } | |
628 | if(leadd) | |
629 | putc(0140 | ((~leadd) & 037), out); | |
630 | } | |
631 | ||
632 | #ifdef DUMPLINE | |
633 | dumpline(linep) | |
634 | register struct line *linep; | |
635 | { | |
636 | int i; | |
637 | ||
638 | fprintf(stderr, "row: %d\n", linep->row); | |
639 | fprintf(stderr, "start.col: %o ", linep->start.col & 0377); | |
640 | fprintf(stderr, ".psize: %o ", linep->start.psize); | |
641 | fprintf(stderr, ".railmag: %o ", linep->start.railmag); | |
642 | fprintf(stderr, ".verd: %o ", linep->start.verd); | |
643 | fprintf(stderr, ".back: %o ", linep->start.back); | |
644 | fprintf(stderr, ".mcase: %o\n", linep->start.mcase); | |
645 | fprintf(stderr, " end.col: %o ", linep->end.col); | |
646 | fprintf(stderr, ".psize: %o ", linep->end.psize); | |
647 | fprintf(stderr, ".railmag: %o ", linep->end.railmag); | |
648 | fprintf(stderr, ".verd: %o ", linep->end.verd); | |
649 | fprintf(stderr, ".back: %o ", linep->end.back); | |
650 | fprintf(stderr, ".mcase: %o\n", linep->end.mcase); | |
651 | fprintf(stderr, "len: %d\t", linep->len); | |
652 | fprintf(stderr, "codep: "); | |
653 | for (i = 0; i < linep->len; i++) | |
654 | fprintf(stderr, "%o ", linep->codep[i] & 0377); | |
655 | fprintf(stderr, "\n\n"); | |
656 | } | |
657 | #endif |