1 /** $MirOS: src/usr.bin/vgrind/vfontedpr.c,v 1.2 2005/03/13 18:33:53 tg Exp $ */
2 /* $OpenBSD: vfontedpr.c,v 1.9 2003/06/03 02:56:21 millert Exp $ */
3 /* $NetBSD: vfontedpr.c,v 1.7 1998/12/19 23:41:53 christos Exp $ */
4
5 /*
6 * Copyright (c) 1980, 1993
7 * The Regents of the University of California. All rights reserved.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
17 * 3. Neither the name of the University nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 */
33
34 #ifndef lint
35 static char copyright[] =
36 "@(#) Copyright (c) 1980, 1993\n\
37 The Regents of the University of California. All rights reserved.\n";
38 #endif /* not lint */
39
40 #ifndef lint
41 #if 0
42 static char sccsid[] = "@(#)vfontedpr.c 8.1 (Berkeley) 6/6/93";
43 #endif
44 static char rcsid[] = "$OpenBSD: vfontedpr.c,v 1.9 2003/06/03 02:56:21 millert Exp $";
45 #endif /* not lint */
46
47 #include <sys/types.h>
48 #include <sys/stat.h>
49 #include <time.h>
50 #include <ctype.h>
51 #include <stdlib.h>
52 #include <string.h>
53 #include <stdio.h>
54 #include "pathnames.h"
55 #include "extern.h"
56
57 #define FALSE 0
58 #define TRUE !(FALSE)
59 #define NIL 0
60 #define STANDARD 0
61 #define ALTERNATE 1
62
63 /*
64 * Vfontedpr.
65 *
66 * Dave Presotto 1/12/81 (adapted from an earlier version by Bill Joy)
67 *
68 */
69
70 #define STRLEN 10 /* length of strings introducing things */
71 #define PNAMELEN 40 /* length of a function/procedure name */
72 #define PSMAX 20 /* size of procedure name stacking */
73
74 static int iskw(char *);
75 static boolean isproc(char *);
76 static void putKcp(char *, char *, boolean);
77 static void putScp(char *);
78 static void putcp(int);
79 static int tabs(char *, char *);
80 static int width(char *, char *);
81
82 /*
83 * The state variables
84 */
85
86 static boolean filter = FALSE; /* act as a filter (like eqn) */
87 static boolean inchr; /* in a string constant */
88 static boolean incomm; /* in a comment of the primary type */
89 static boolean idx = FALSE; /* form an index */
90 static boolean instr; /* in a string constant */
91 static boolean nokeyw = FALSE; /* no keywords being flagged */
92 static boolean pass = FALSE; /*
93 * when acting as a filter, pass indicates
94 * whether we are currently processing
95 * input.
96 */
97
98 static int blklevel; /* current nesting level */
99 static int comtype; /* type of comment */
100 static char *defsfile[2] = { _PATH_VGRINDEFS, 0 };
101 /* name of language definitions file */
102 static int margin;
103 static int plstack[PSMAX]; /* the procedure nesting level stack */
104 static char pname[BUFSIZ+1];
105 static boolean prccont; /* continue last procedure */
106 static int psptr; /* the stack index of the current procedure */
107 static char pstack[PSMAX][PNAMELEN+1]; /* the procedure name stack */
108
109 /*
110 * The language specific globals
111 */
112
113 char *l_acmbeg; /* string introducing a comment */
114 char *l_acmend; /* string ending a comment */
115 char *l_blkbeg; /* string begining of a block */
116 char *l_blkend; /* string ending a block */
117 char *l_chrbeg; /* delimiter for character constant */
118 char *l_chrend; /* delimiter for character constant */
119 char *l_combeg; /* string introducing a comment */
120 char *l_comend; /* string ending a comment */
121 char l_escape; /* character used to escape characters */
122 char *l_keywds[BUFSIZ/2]; /* keyword table address */
123 char *l_prcbeg; /* regular expr for procedure begin */
124 char *l_strbeg; /* delimiter for string constant */
125 char *l_strend; /* delimiter for string constant */
126 boolean l_toplex; /* procedures only defined at top lex level */
127 char *language = "c"; /* the language indicator */
128
129 #define ps(x) printf("%s", x)
130
131 int
main(int argc,char * argv[])132 main(int argc, char *argv[])
133 {
134 char *fname = "";
135 struct stat stbuf;
136 char buf[BUFSIZ];
137 char *defs;
138 int needbp = 0;
139
140 argc--, argv++;
141 do {
142 char *cp;
143 int i;
144
145 if (argc > 0) {
146 if (!strcmp(argv[0], "-h")) {
147 if (argc == 1) {
148 printf("'ds =H\n");
149 argc = 0;
150 goto rest;
151 }
152 printf("'ds =H %s\n", argv[1]);
153 argc--, argv++;
154 argc--, argv++;
155 if (argc > 0)
156 continue;
157 goto rest;
158 }
159
160 /* act as a filter like eqn */
161 if (!strcmp(argv[0], "-f")) {
162 filter++;
163 argv[0] = argv[argc-1];
164 argv[argc-1] = "-";
165 continue;
166 }
167
168 /* take input from the standard place */
169 if (!strcmp(argv[0], "-")) {
170 argc = 0;
171 goto rest;
172 }
173
174 /* build an index */
175 if (!strcmp(argv[0], "-x")) {
176 idx++;
177 argv[0] = "-n";
178 }
179
180 /* indicate no keywords */
181 if (!strcmp(argv[0], "-n")) {
182 nokeyw++;
183 argc--, argv++;
184 continue;
185 }
186
187 /* specify the font size */
188 if (!strncmp(argv[0], "-s", 2)) {
189 i = 0;
190 cp = argv[0] + 2;
191 while (*cp)
192 i = i * 10 + (*cp++ - '0');
193 printf("'ps %d\n'vs %d\n", i, i+1);
194 argc--, argv++;
195 continue;
196 }
197
198 /* specify the language */
199 if (!strncmp(argv[0], "-l", 2)) {
200 language = argv[0]+2;
201 argc--, argv++;
202 continue;
203 }
204
205 /* specify the language description file */
206 if (!strncmp(argv[0], "-d", 2)) {
207 defsfile[0] = argv[1];
208 argc--, argv++;
209 argc--, argv++;
210 continue;
211 }
212
213 /* open the file for input */
214 if (freopen(argv[0], "r", stdin) == NULL) {
215 perror(argv[0]);
216 exit(1);
217 }
218 if (idx)
219 printf("'ta 4i 4.25i 5.5iR\n'in .5i\n");
220 fname = argv[0];
221 argc--, argv++;
222 }
223 rest:
224
225 /*
226 * get the language definition from the defs file
227 */
228 i = cgetent(&defs, defsfile, language);
229 if (i == -1) {
230 fprintf (stderr, "no entry for language %s\n", language);
231 exit (0);
232 } else if (i == -2) { fprintf(stderr,
233 "cannot find vgrindefs file %s\n", defsfile[0]);
234 exit (0);
235 } else if (i == -3) { fprintf(stderr,
236 "potential reference loop detected in vgrindefs file %s\n",
237 defsfile[0]);
238 exit(0);
239 }
240 if (cgetustr(defs, "kw", &cp) == -1)
241 nokeyw = TRUE;
242 else {
243 char **cpp;
244
245 cpp = l_keywds;
246 while (*cp) {
247 while (*cp == ' ' || *cp =='\t')
248 *cp++ = 0;
249 if (*cp)
250 *cpp++ = cp;
251 while (*cp != ' ' && *cp != '\t' && *cp)
252 cp++;
253 }
254 *cpp = NIL;
255 }
256 cgetustr(defs, "pb", &cp);
257 l_prcbeg = convexp(cp);
258 cgetustr(defs, "cb", &cp);
259 l_combeg = convexp(cp);
260 cgetustr(defs, "ce", &cp);
261 l_comend = convexp(cp);
262 cgetustr(defs, "ab", &cp);
263 l_acmbeg = convexp(cp);
264 cgetustr(defs, "ae", &cp);
265 l_acmend = convexp(cp);
266 cgetustr(defs, "sb", &cp);
267 l_strbeg = convexp(cp);
268 cgetustr(defs, "se", &cp);
269 l_strend = convexp(cp);
270 cgetustr(defs, "bb", &cp);
271 l_blkbeg = convexp(cp);
272 cgetustr(defs, "be", &cp);
273 l_blkend = convexp(cp);
274 cgetustr(defs, "lb", &cp);
275 l_chrbeg = convexp(cp);
276 cgetustr(defs, "le", &cp);
277 l_chrend = convexp(cp);
278 l_escape = '\\';
279 l_onecase = (cgetcap(defs, "oc", ':') != NULL);
280 l_toplex = (cgetcap(defs, "tl", ':') != NULL);
281
282 /* initialize the program */
283
284 incomm = FALSE;
285 instr = FALSE;
286 inchr = FALSE;
287 x_escaped = FALSE;
288 blklevel = 0;
289 for (psptr=0; psptr<PSMAX; psptr++) {
290 pstack[psptr][0] = 0;
291 plstack[psptr] = 0;
292 }
293 psptr = -1;
294 ps("'-F\n");
295 if (!filter) {
296 printf(".ds =F %s\n", fname);
297 ps("'wh 0 vH\n");
298 ps("'wh -1i vF\n");
299 }
300 if (needbp) {
301 needbp = 0;
302 printf(".()\n");
303 printf(".bp\n");
304 }
305 if (!filter) {
306 fstat(fileno(stdin), &stbuf);
307 cp = ctime(&stbuf.st_mtime);
308 cp[16] = '\0';
309 cp[24] = '\0';
310 printf(".ds =M %s %s\n", cp+4, cp+20);
311 }
312
313 /*
314 * MAIN LOOP!!!
315 */
316 while (fgets(buf, sizeof buf, stdin) != NULL) {
317 if (buf[0] == '\f') {
318 printf(".bp\n");
319 }
320 if (buf[0] == '.') {
321 printf("%s", buf);
322 if (!strncmp (buf+1, "vS", 2))
323 pass = TRUE;
324 if (!strncmp (buf+1, "vE", 2))
325 pass = FALSE;
326 continue;
327 }
328 prccont = FALSE;
329 if (!filter || pass)
330 putScp(buf);
331 else
332 printf("%s", buf);
333 if (prccont && (psptr >= 0)) {
334 ps("'FC ");
335 ps(pstack[psptr]);
336 ps("\n");
337 }
338 #ifdef DEBUG
339 printf ("com %o str %o chr %o ptr %d\n", incomm, instr, inchr, psptr);
340 #endif
341 margin = 0;
342 }
343 needbp = 1;
344 } while (argc > 0);
345 exit(0);
346 }
347
348 #define isidchr(c) (isalnum(c) || (c) == '_')
349
350 static void
putScp(char * os)351 putScp(char *os)
352 {
353 char *s = os; /* pointer to unmatched string */
354 char dummy[BUFSIZ]; /* dummy to be used by expmatch */
355 char *comptr; /* end of a comment delimiter */
356 char *acmptr; /* end of a comment delimiter */
357 char *strptr; /* end of a string delimiter */
358 char *chrptr; /* end of a character const delimiter */
359 char *blksptr; /* end of a lexical block start */
360 char *blkeptr; /* end of a lexical block end */
361
362 x_start = os; /* remember the start for expmatch */
363 x_escaped = FALSE;
364 if (nokeyw || incomm || instr)
365 goto skip;
366 if (isproc(s)) {
367 ps("'FN ");
368 ps(pname);
369 ps("\n");
370 if (psptr < PSMAX) {
371 ++psptr;
372 strncpy (pstack[psptr], pname, PNAMELEN);
373 pstack[psptr][PNAMELEN] = 0;
374 plstack[psptr] = blklevel;
375 }
376 }
377 skip:
378 do {
379 /* check for string, comment, blockstart, etc */
380 if (!incomm && !instr && !inchr) {
381
382 blkeptr = expmatch (s, l_blkend, dummy);
383 blksptr = expmatch (s, l_blkbeg, dummy);
384 comptr = expmatch (s, l_combeg, dummy);
385 acmptr = expmatch (s, l_acmbeg, dummy);
386 strptr = expmatch (s, l_strbeg, dummy);
387 chrptr = expmatch (s, l_chrbeg, dummy);
388
389 /* start of a comment? */
390 if (comptr != NIL)
391 if ((comptr < strptr || strptr == NIL)
392 && (comptr < acmptr || acmptr == NIL)
393 && (comptr < chrptr || chrptr == NIL)
394 && (comptr < blksptr || blksptr == NIL)
395 && (comptr < blkeptr || blkeptr == NIL)) {
396 putKcp (s, comptr-1, FALSE);
397 s = comptr;
398 incomm = TRUE;
399 comtype = STANDARD;
400 if (s != os)
401 ps ("\\c");
402 ps ("\\c\n'+C\n");
403 continue;
404 }
405
406 /* start of a comment? */
407 if (acmptr != NIL)
408 if ((acmptr < strptr || strptr == NIL)
409 && (acmptr < chrptr || chrptr == NIL)
410 && (acmptr < blksptr || blksptr == NIL)
411 && (acmptr < blkeptr || blkeptr == NIL)) {
412 putKcp (s, acmptr-1, FALSE);
413 s = acmptr;
414 incomm = TRUE;
415 comtype = ALTERNATE;
416 if (s != os)
417 ps ("\\c");
418 ps ("\\c\n'+C\n");
419 continue;
420 }
421
422 /* start of a string? */
423 if (strptr != NIL)
424 if ((strptr < chrptr || chrptr == NIL)
425 && (strptr < blksptr || blksptr == NIL)
426 && (strptr < blkeptr || blkeptr == NIL)) {
427 putKcp (s, strptr-1, FALSE);
428 s = strptr;
429 instr = TRUE;
430 continue;
431 }
432
433 /* start of a character string? */
434 if (chrptr != NIL)
435 if ((chrptr < blksptr || blksptr == NIL)
436 && (chrptr < blkeptr || blkeptr == NIL)) {
437 putKcp (s, chrptr-1, FALSE);
438 s = chrptr;
439 inchr = TRUE;
440 continue;
441 }
442
443 /* end of a lexical block */
444 if (blkeptr != NIL) {
445 if (blkeptr < blksptr || blksptr == NIL) {
446 putKcp (s, blkeptr - 1, FALSE);
447 s = blkeptr;
448 blklevel--;
449 if (psptr >= 0 && plstack[psptr] >= blklevel) {
450
451 /* end of current procedure */
452 if (s != os)
453 ps ("\\c");
454 ps ("\\c\n'-F\n");
455 blklevel = plstack[psptr];
456
457 /* see if we should print the last proc name */
458 if (--psptr >= 0)
459 prccont = TRUE;
460 else
461 psptr = -1;
462 }
463 continue;
464 }
465 }
466
467 /* start of a lexical block */
468 if (blksptr != NIL) {
469 putKcp (s, blksptr - 1, FALSE);
470 s = blksptr;
471 blklevel++;
472 continue;
473 }
474
475 /* check for end of comment */
476 } else if (incomm) {
477 comptr = expmatch (s, l_comend, dummy);
478 acmptr = expmatch (s, l_acmend, dummy);
479 if (((comtype == STANDARD) && (comptr != NIL)) ||
480 ((comtype == ALTERNATE) && (acmptr != NIL))) {
481 if (comtype == STANDARD) {
482 putKcp (s, comptr-1, TRUE);
483 s = comptr;
484 } else {
485 putKcp (s, acmptr-1, TRUE);
486 s = acmptr;
487 }
488 incomm = FALSE;
489 ps("\\c\n'-C\n");
490 continue;
491 } else {
492 putKcp (s, s + strlen(s) -1, TRUE);
493 s = s + strlen(s);
494 continue;
495 }
496
497 /* check for end of string */
498 } else if (instr) {
499 if ((strptr = expmatch (s, l_strend, dummy)) != NIL) {
500 putKcp (s, strptr-1, TRUE);
501 s = strptr;
502 instr = FALSE;
503 continue;
504 } else {
505 putKcp (s, s+strlen(s)-1, TRUE);
506 s = s + strlen(s);
507 continue;
508 }
509
510 /* check for end of character string */
511 } else if (inchr) {
512 if ((chrptr = expmatch (s, l_chrend, dummy)) != NIL) {
513 putKcp (s, chrptr-1, TRUE);
514 s = chrptr;
515 inchr = FALSE;
516 continue;
517 } else {
518 putKcp (s, s+strlen(s)-1, TRUE);
519 s = s + strlen(s);
520 continue;
521 }
522 }
523
524 /* print out the line */
525 putKcp (s, s + strlen(s) -1, FALSE);
526 s = s + strlen(s);
527 } while (*s);
528 }
529
530 static void
putKcp(char * start,char * end,boolean force)531 putKcp(char *start, char *end, boolean force)
532 {
533 int i;
534 int xfld = 0;
535
536 while (start <= end) {
537 if (idx) {
538 if (*start == ' ' || *start == '\t') {
539 if (xfld == 0)
540 printf("");
541 printf("\t");
542 xfld = 1;
543 while (*start == ' ' || *start == '\t')
544 start++;
545 continue;
546 }
547 }
548
549 /* take care of nice tab stops */
550 if (*start == '\t') {
551 while (*start == '\t')
552 start++;
553 i = tabs(x_start, start) - margin / 8;
554 printf("\\h'|%dn'", i * 10 + 1 - margin % 8);
555 continue;
556 }
557
558 if (!nokeyw && !force)
559 if ((*start == '#' || isidchr(*start))
560 && (start == x_start || !isidchr(start[-1]))) {
561 i = iskw(start);
562 if (i > 0) {
563 ps("\\*(+K");
564 do
565 putcp(*start++);
566 while (--i > 0);
567 ps("\\*(-K");
568 continue;
569 }
570 }
571
572 putcp (*start++);
573 }
574 }
575
576
577 static int
tabs(char * s,char * os)578 tabs(char *s, char *os)
579 {
580
581 return (width(s, os) / 8);
582 }
583
584 static int
width(char * s,char * os)585 width(char *s, char *os)
586 {
587 int i = 0;
588
589 while (s < os) {
590 if (*s == '\t') {
591 i = (i + 8) &~ 7;
592 s++;
593 continue;
594 }
595 if (*s < ' ')
596 i += 2;
597 else
598 i++;
599 s++;
600 }
601 return (i);
602 }
603
604 static void
putcp(int c)605 putcp(int c)
606 {
607
608 switch(c) {
609
610 case 0:
611 break;
612
613 case '\f':
614 break;
615
616 case '{':
617 ps("\\*(+K{\\*(-K");
618 break;
619
620 case '}':
621 ps("\\*(+K}\\*(-K");
622 break;
623
624 case '\\':
625 ps("\\e");
626 break;
627
628 case '_':
629 ps("\\*_");
630 break;
631
632 case '-':
633 ps("\\*-");
634 break;
635
636 case '`':
637 ps("\\`");
638 break;
639
640 case '\'':
641 ps("\\'");
642 break;
643
644 case '.':
645 ps("\\&.");
646 break;
647
648 case '*':
649 ps("\\fI*\\fP");
650 break;
651
652 case '/':
653 ps("\\fI\\h'\\w' 'u-\\w'/'u'/\\fP");
654 break;
655
656 default:
657 if (c < 040)
658 putchar('^'), c |= '@';
659 case '\t':
660 case '\n':
661 putchar(c);
662 }
663 }
664
665 /*
666 * look for a process beginning on this line
667 */
668 static boolean
isproc(char * s)669 isproc(char *s)
670 {
671 pname[0] = 0;
672 if (!l_toplex || blklevel == 0)
673 if (expmatch (s, l_prcbeg, pname) != NIL) {
674 return (TRUE);
675 }
676 return (FALSE);
677 }
678
679
680 /* iskw - check to see if the next word is a keyword
681 */
682
683 static int
iskw(char * s)684 iskw(char *s)
685 {
686 char **ss = l_keywds;
687 int i = 1;
688 char *cp = s;
689
690 while (++cp, isidchr(*cp))
691 i++;
692 while ((cp = *ss++))
693 if (!STRNCMP(s,cp,i) && !isidchr(cp[i]))
694 return (i);
695 return (0);
696 }
697