2 * Copyright (c) 1980, 1993
3 * The Regents of the University of California. All rights reserved.
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6 * modification, are permitted provided that the following conditions
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15 * This product includes software developed by the University of
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33 * @(#) Copyright (c) 1980, 1993 The Regents of the University of California. All rights reserved.
34 * @(#)vfontedpr.c 8.1 (Berkeley) 6/6/93
35 * $FreeBSD: src/usr.bin/vgrind/vfontedpr.c,v 1.12 1999/08/28 01:07:21 peter Exp $
36 * $DragonFly: src/usr.bin/vgrind/vfontedpr.c,v 1.4 2008/10/16 01:52:34 swildner Exp $
39 #include <sys/types.h>
47 #include "pathnames.h"
59 * Dave Presotto 1/12/81 (adapted from an earlier version by Bill Joy)
63 #define STRLEN 10 /* length of strings introducing things */
64 #define PNAMELEN 40 /* length of a function/procedure name */
65 #define PSMAX 20 /* size of procedure name stacking */
67 static int iskw(char *);
68 static boolean isproc(char *);
69 static void putKcp(char *, char *, boolean);
70 static void putScp(char *);
71 static void putcp(int);
72 static int tabs(char *, char *);
73 static int width(char *, char *);
79 static boolean filter = FALSE; /* act as a filter (like eqn) */
80 static boolean inchr; /* in a string constant */
81 static boolean incomm; /* in a comment of the primary type */
82 static boolean idx = FALSE; /* form an index */
83 static boolean instr; /* in a string constant */
84 static boolean nokeyw = FALSE; /* no keywords being flagged */
85 static boolean pass = FALSE; /*
86 * when acting as a filter, pass indicates
87 * whether we are currently processing
91 static int blklevel; /* current nesting level */
92 static int comtype; /* type of comment */
93 static char *defsfile[2] = { _PATH_VGRINDEFS, 0 };
94 /* name of language definitions file */
96 static int plstack[PSMAX]; /* the procedure nesting level stack */
97 static char pname[BUFSIZ+1];
98 static boolean prccont; /* continue last procedure */
99 static int psptr; /* the stack index of the current procedure */
100 static char pstack[PSMAX][PNAMELEN+1]; /* the procedure name stack */
103 * The language specific globals
106 char *l_acmbeg; /* string introducing a comment */
107 char *l_acmend; /* string ending a comment */
108 char *l_blkbeg; /* string begining of a block */
109 char *l_blkend; /* string ending a block */
110 char *l_chrbeg; /* delimiter for character constant */
111 char *l_chrend; /* delimiter for character constant */
112 char *l_combeg; /* string introducing a comment */
113 char *l_comend; /* string ending a comment */
114 char l_escape; /* character used to escape characters */
115 char *l_keywds[BUFSIZ/2]; /* keyword table address */
116 char *l_nocom; /* regexp for non-comments */
117 char *l_prcbeg; /* regular expr for procedure begin */
118 char *l_strbeg; /* delimiter for string constant */
119 char *l_strend; /* delimiter for string constant */
120 boolean l_toplex; /* procedures only defined at top lex level */
121 char *language = "c"; /* the language indicator */
123 #define ps(x) printf("%s", x)
126 main(int argc, char **argv)
140 if (!strcmp(argv[0], "-h")) {
146 printf("'ds =H %s\n", argv[1]);
154 /* act as a filter like eqn */
155 if (!strcmp(argv[0], "-f")) {
157 argv[0] = argv[argc-1];
162 /* take input from the standard place */
163 if (!strcmp(argv[0], "-")) {
169 if (!strcmp(argv[0], "-x")) {
174 /* indicate no keywords */
175 if (!strcmp(argv[0], "-n")) {
181 /* specify the font size */
182 if (!strncmp(argv[0], "-s", 2)) {
186 i = i * 10 + (*cp++ - '0');
187 printf("'ps %d\n'vs %d\n", i, i+1);
192 /* specify the language */
193 if (!strncmp(argv[0], "-l", 2)) {
194 language = argv[0]+2;
199 /* specify the language description file */
200 if (!strncmp(argv[0], "-d", 2)) {
201 defsfile[0] = argv[1];
207 /* open the file for input */
208 if (freopen(argv[0], "r", stdin) == NULL)
209 err(1, "%s", argv[0]);
211 printf("'ta 4i 4.25i 5.5iR\n'in .5i\n");
218 * get the language definition from the defs file
220 i = cgetent(&defs, defsfile, language);
222 fprintf (stderr, "no entry for language %s\n", language);
224 } else if (i == -2) { fprintf(stderr,
225 "cannot find vgrindefs file %s\n", defsfile[0]);
227 } else if (i == -3) { fprintf(stderr,
228 "potential reference loop detected in vgrindefs file %s\n",
232 if (cgetustr(defs, "kw", &cp) == -1)
239 while (*cp == ' ' || *cp =='\t')
243 while (*cp != ' ' && *cp != '\t' && *cp)
248 cgetustr(defs, "pb", &cp);
249 l_prcbeg = convexp(cp);
250 cgetustr(defs, "cb", &cp);
251 l_combeg = convexp(cp);
252 cgetustr(defs, "ce", &cp);
253 l_comend = convexp(cp);
254 cgetustr(defs, "ab", &cp);
255 l_acmbeg = convexp(cp);
256 cgetustr(defs, "ae", &cp);
257 l_acmend = convexp(cp);
258 cgetustr(defs, "sb", &cp);
259 l_strbeg = convexp(cp);
260 cgetustr(defs, "se", &cp);
261 l_strend = convexp(cp);
262 cgetustr(defs, "bb", &cp);
263 l_blkbeg = convexp(cp);
264 cgetustr(defs, "be", &cp);
265 l_blkend = convexp(cp);
266 cgetustr(defs, "lb", &cp);
267 l_chrbeg = convexp(cp);
268 cgetustr(defs, "le", &cp);
269 l_chrend = convexp(cp);
270 if (cgetustr(defs, "nc", &cp) >= 0)
271 l_nocom = convexp(cp);
273 l_onecase = (cgetcap(defs, "oc", ':') != NULL);
274 l_toplex = (cgetcap(defs, "tl", ':') != NULL);
276 /* initialize the program */
283 for (psptr=0; psptr<PSMAX; psptr++) {
284 pstack[psptr][0] = '\0';
290 printf(".ds =F %s\n", fname);
300 fstat(fileno(stdin), &stbuf);
301 cp = ctime(&stbuf.st_mtime);
304 printf(".ds =M %s %s\n", cp+4, cp+20);
310 while (fgets(buf, sizeof buf, stdin) != NULL) {
311 if (buf[0] == '\f') {
316 if (!strncmp (buf+1, "vS", 2))
318 if (!strncmp (buf+1, "vE", 2))
327 if (prccont && (psptr >= 0)) {
333 printf ("com %o str %o chr %o ptr %d\n", incomm, instr, inchr, psptr);
342 #define isidchr(c) (isalnum(c) || (c) == '_')
347 char *s = os; /* pointer to unmatched string */
348 char dummy[BUFSIZ]; /* dummy to be used by expmatch */
349 char *comptr; /* end of a comment delimiter */
350 char *acmptr; /* end of a comment delimiter */
351 char *strptr; /* end of a string delimiter */
352 char *chrptr; /* end of a character const delimiter */
353 char *blksptr; /* end of a lexical block start */
354 char *blkeptr; /* end of a lexical block end */
355 char *nocomptr; /* end of a non-comment delimiter */
357 s_start = os; /* remember the start for expmatch */
359 if (nokeyw || incomm || instr)
367 strncpy (pstack[psptr], pname, PNAMELEN);
368 pstack[psptr][PNAMELEN] = '\0';
369 plstack[psptr] = blklevel;
374 /* check for string, comment, blockstart, etc */
375 if (!incomm && !instr && !inchr) {
377 blkeptr = expmatch (s, l_blkend, dummy);
378 blksptr = expmatch (s, l_blkbeg, dummy);
379 comptr = expmatch (s, l_combeg, dummy);
380 acmptr = expmatch (s, l_acmbeg, dummy);
381 strptr = expmatch (s, l_strbeg, dummy);
382 chrptr = expmatch (s, l_chrbeg, dummy);
383 nocomptr = expmatch (s, l_nocom, dummy);
385 /* start of non-comment? */
387 if ((nocomptr <= comptr || comptr == NIL)
388 && (nocomptr <= acmptr || acmptr == NIL)) {
389 /* continue after non-comment */
390 putKcp (s, nocomptr-1, FALSE);
395 /* start of a comment? */
397 if ((comptr < strptr || strptr == NIL)
398 && (comptr < acmptr || acmptr == NIL)
399 && (comptr < chrptr || chrptr == NIL)
400 && (comptr < blksptr || blksptr == NIL)
401 && (comptr < blkeptr || blkeptr == NIL)) {
402 putKcp (s, comptr-1, FALSE);
412 /* start of a comment? */
414 if ((acmptr < strptr || strptr == NIL)
415 && (acmptr < chrptr || chrptr == NIL)
416 && (acmptr < blksptr || blksptr == NIL)
417 && (acmptr < blkeptr || blkeptr == NIL)) {
418 putKcp (s, acmptr-1, FALSE);
428 /* start of a string? */
430 if ((strptr < chrptr || chrptr == NIL)
431 && (strptr < blksptr || blksptr == NIL)
432 && (strptr < blkeptr || blkeptr == NIL)) {
433 putKcp (s, strptr-1, FALSE);
439 /* start of a character string? */
441 if ((chrptr < blksptr || blksptr == NIL)
442 && (chrptr < blkeptr || blkeptr == NIL)) {
443 putKcp (s, chrptr-1, FALSE);
449 /* end of a lexical block */
450 if (blkeptr != NIL) {
451 if (blkeptr < blksptr || blksptr == NIL) {
452 putKcp (s, blkeptr - 1, FALSE);
454 if (blklevel > 0 /* sanity */)
456 if (psptr >= 0 && plstack[psptr] >= blklevel) {
458 /* end of current procedure */
462 blklevel = plstack[psptr];
464 /* see if we should print the last proc name */
474 /* start of a lexical block */
475 if (blksptr != NIL) {
476 putKcp (s, blksptr - 1, FALSE);
482 /* check for end of comment */
484 comptr = expmatch (s, l_comend, dummy);
485 acmptr = expmatch (s, l_acmend, dummy);
486 if (((comtype == STANDARD) && (comptr != NIL)) ||
487 ((comtype == ALTERNATE) && (acmptr != NIL))) {
488 if (comtype == STANDARD) {
489 putKcp (s, comptr-1, TRUE);
492 putKcp (s, acmptr-1, TRUE);
499 putKcp (s, s + strlen(s) -1, TRUE);
504 /* check for end of string */
506 if ((strptr = expmatch (s, l_strend, dummy)) != NIL) {
507 putKcp (s, strptr-1, TRUE);
512 putKcp (s, s+strlen(s)-1, TRUE);
517 /* check for end of character string */
519 if ((chrptr = expmatch (s, l_chrend, dummy)) != NIL) {
520 putKcp (s, chrptr-1, TRUE);
525 putKcp (s, s+strlen(s)-1, TRUE);
531 /* print out the line */
532 putKcp (s, s + strlen(s) -1, FALSE);
537 /* force: true if we should force nokeyw */
539 putKcp(char *start, char *end, boolean force)
544 while (start <= end) {
546 if (*start == ' ' || *start == '\t') {
551 while (*start == ' ' || *start == '\t')
557 /* take care of nice tab stops */
558 if (*start == '\t') {
559 while (*start == '\t')
561 i = tabs(s_start, start) - margin / 8;
562 printf("\\h'|%dn'", i * 10 + 1 - margin % 8);
566 if (!nokeyw && !force)
567 if ((*start == '#' || isidchr(*start))
568 && (start == s_start || !isidchr(start[-1]))) {
573 putcp((unsigned char)*start++);
580 putcp ((unsigned char)*start++);
586 tabs(char *s, char *os)
589 return (width(s, os) / 8);
593 width(char *s, char *os)
664 ps("\\fI\\h'\\w' 'u-\\w'/'u'/\\fP");
669 putchar('^'), c |= '@';
677 * look for a process beginning on this line
683 if (!l_toplex || blklevel == 0)
684 if (expmatch (s, l_prcbeg, pname) != NIL) {
691 /* iskw - check to see if the next word is a keyword
697 char **ss = l_keywds;
701 while (++cp, isidchr(*cp))
704 if (!STRNCMP(s,cp,i) && !isidchr(cp[i]))