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
8 * 1. Redistributions of source code must retain the above copyright
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13 * 3. Neither the name of the University nor the names of its contributors
14 * may be used to endorse or promote products derived from this software
15 * without specific prior written permission.
17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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29 * @(#) Copyright (c) 1980, 1993 The Regents of the University of California. All rights reserved.
30 * @(#)vfontedpr.c 8.1 (Berkeley) 6/6/93
31 * $FreeBSD: src/usr.bin/vgrind/vfontedpr.c,v 1.12 1999/08/28 01:07:21 peter Exp $
34 #include <sys/types.h>
42 #include "pathnames.h"
54 * Dave Presotto 1/12/81 (adapted from an earlier version by Bill Joy)
58 #define STRLEN 10 /* length of strings introducing things */
59 #define PNAMELEN 40 /* length of a function/procedure name */
60 #define PSMAX 20 /* size of procedure name stacking */
62 static int iskw(char *);
63 static boolean isproc(char *);
64 static void putKcp(char *, char *, boolean);
65 static void putScp(char *);
66 static void putcp(int);
67 static int tabs(char *, char *);
68 static int width(char *, char *);
74 static boolean filter = FALSE; /* act as a filter (like eqn) */
75 static boolean inchr; /* in a string constant */
76 static boolean incomm; /* in a comment of the primary type */
77 static boolean idx = FALSE; /* form an index */
78 static boolean instr; /* in a string constant */
79 static boolean nokeyw = FALSE; /* no keywords being flagged */
80 static boolean pass = FALSE; /*
81 * when acting as a filter, pass indicates
82 * whether we are currently processing
86 static int blklevel; /* current nesting level */
87 static int comtype; /* type of comment */
88 static char *defsfile[2] = { _PATH_VGRINDEFS, 0 };
89 /* name of language definitions file */
91 static int plstack[PSMAX]; /* the procedure nesting level stack */
92 static char pname[BUFSIZ+1];
93 static boolean prccont; /* continue last procedure */
94 static int psptr; /* the stack index of the current procedure */
95 static char pstack[PSMAX][PNAMELEN+1]; /* the procedure name stack */
98 * The language specific globals
101 char *l_acmbeg; /* string introducing a comment */
102 char *l_acmend; /* string ending a comment */
103 char *l_blkbeg; /* string begining of a block */
104 char *l_blkend; /* string ending a block */
105 char *l_chrbeg; /* delimiter for character constant */
106 char *l_chrend; /* delimiter for character constant */
107 char *l_combeg; /* string introducing a comment */
108 char *l_comend; /* string ending a comment */
109 char l_escape; /* character used to escape characters */
110 char *l_keywds[BUFSIZ/2]; /* keyword table address */
111 char *l_nocom; /* regexp for non-comments */
112 char *l_prcbeg; /* regular expr for procedure begin */
113 char *l_strbeg; /* delimiter for string constant */
114 char *l_strend; /* delimiter for string constant */
115 boolean l_toplex; /* procedures only defined at top lex level */
116 char *language = "c"; /* the language indicator */
118 #define ps(x) printf("%s", x)
121 main(int argc, char **argv)
135 if (!strcmp(argv[0], "-h")) {
141 printf("'ds =H %s\n", argv[1]);
149 /* act as a filter like eqn */
150 if (!strcmp(argv[0], "-f")) {
152 argv[0] = argv[argc-1];
157 /* take input from the standard place */
158 if (!strcmp(argv[0], "-")) {
164 if (!strcmp(argv[0], "-x")) {
169 /* indicate no keywords */
170 if (!strcmp(argv[0], "-n")) {
176 /* specify the font size */
177 if (!strncmp(argv[0], "-s", 2)) {
181 i = i * 10 + (*cp++ - '0');
182 printf("'ps %d\n'vs %d\n", i, i+1);
187 /* specify the language */
188 if (!strncmp(argv[0], "-l", 2)) {
189 language = argv[0]+2;
194 /* specify the language description file */
195 if (!strncmp(argv[0], "-d", 2)) {
196 defsfile[0] = argv[1];
202 /* open the file for input */
203 if (freopen(argv[0], "r", stdin) == NULL)
204 err(1, "%s", argv[0]);
206 printf("'ta 4i 4.25i 5.5iR\n'in .5i\n");
213 * get the language definition from the defs file
215 i = cgetent(&defs, defsfile, language);
217 fprintf (stderr, "no entry for language %s\n", language);
219 } else if (i == -2) { fprintf(stderr,
220 "cannot find vgrindefs file %s\n", defsfile[0]);
222 } else if (i == -3) { fprintf(stderr,
223 "potential reference loop detected in vgrindefs file %s\n",
227 if (cgetustr(defs, "kw", &cp) == -1)
234 while (*cp == ' ' || *cp =='\t')
238 while (*cp != ' ' && *cp != '\t' && *cp)
243 cgetustr(defs, "pb", &cp);
244 l_prcbeg = convexp(cp);
245 cgetustr(defs, "cb", &cp);
246 l_combeg = convexp(cp);
247 cgetustr(defs, "ce", &cp);
248 l_comend = convexp(cp);
249 cgetustr(defs, "ab", &cp);
250 l_acmbeg = convexp(cp);
251 cgetustr(defs, "ae", &cp);
252 l_acmend = convexp(cp);
253 cgetustr(defs, "sb", &cp);
254 l_strbeg = convexp(cp);
255 cgetustr(defs, "se", &cp);
256 l_strend = convexp(cp);
257 cgetustr(defs, "bb", &cp);
258 l_blkbeg = convexp(cp);
259 cgetustr(defs, "be", &cp);
260 l_blkend = convexp(cp);
261 cgetustr(defs, "lb", &cp);
262 l_chrbeg = convexp(cp);
263 cgetustr(defs, "le", &cp);
264 l_chrend = convexp(cp);
265 if (cgetustr(defs, "nc", &cp) >= 0)
266 l_nocom = convexp(cp);
268 l_onecase = (cgetcap(defs, "oc", ':') != NULL);
269 l_toplex = (cgetcap(defs, "tl", ':') != NULL);
271 /* initialize the program */
278 for (psptr=0; psptr<PSMAX; psptr++) {
279 pstack[psptr][0] = '\0';
285 printf(".ds =F %s\n", fname);
295 fstat(fileno(stdin), &stbuf);
296 cp = ctime(&stbuf.st_mtime);
299 printf(".ds =M %s %s\n", cp+4, cp+20);
305 while (fgets(buf, sizeof buf, stdin) != NULL) {
306 if (buf[0] == '\f') {
311 if (!strncmp (buf+1, "vS", 2))
313 if (!strncmp (buf+1, "vE", 2))
322 if (prccont && (psptr >= 0)) {
328 printf ("com %o str %o chr %o ptr %d\n", incomm, instr, inchr, psptr);
337 #define isidchr(c) (isalnum(c) || (c) == '_')
342 char *s = os; /* pointer to unmatched string */
343 char dummy[BUFSIZ]; /* dummy to be used by expmatch */
344 char *comptr; /* end of a comment delimiter */
345 char *acmptr; /* end of a comment delimiter */
346 char *strptr; /* end of a string delimiter */
347 char *chrptr; /* end of a character const delimiter */
348 char *blksptr; /* end of a lexical block start */
349 char *blkeptr; /* end of a lexical block end */
350 char *nocomptr; /* end of a non-comment delimiter */
352 s_start = os; /* remember the start for expmatch */
354 if (nokeyw || incomm || instr)
362 strncpy (pstack[psptr], pname, PNAMELEN);
363 pstack[psptr][PNAMELEN] = '\0';
364 plstack[psptr] = blklevel;
369 /* check for string, comment, blockstart, etc */
370 if (!incomm && !instr && !inchr) {
372 blkeptr = expmatch (s, l_blkend, dummy);
373 blksptr = expmatch (s, l_blkbeg, dummy);
374 comptr = expmatch (s, l_combeg, dummy);
375 acmptr = expmatch (s, l_acmbeg, dummy);
376 strptr = expmatch (s, l_strbeg, dummy);
377 chrptr = expmatch (s, l_chrbeg, dummy);
378 nocomptr = expmatch (s, l_nocom, dummy);
380 /* start of non-comment? */
382 if ((nocomptr <= comptr || comptr == NIL)
383 && (nocomptr <= acmptr || acmptr == NIL)) {
384 /* continue after non-comment */
385 putKcp (s, nocomptr-1, FALSE);
390 /* start of a comment? */
392 if ((comptr < strptr || strptr == NIL)
393 && (comptr < acmptr || acmptr == NIL)
394 && (comptr < chrptr || chrptr == NIL)
395 && (comptr < blksptr || blksptr == NIL)
396 && (comptr < blkeptr || blkeptr == NIL)) {
397 putKcp (s, comptr-1, FALSE);
407 /* start of a comment? */
409 if ((acmptr < strptr || strptr == NIL)
410 && (acmptr < chrptr || chrptr == NIL)
411 && (acmptr < blksptr || blksptr == NIL)
412 && (acmptr < blkeptr || blkeptr == NIL)) {
413 putKcp (s, acmptr-1, FALSE);
423 /* start of a string? */
425 if ((strptr < chrptr || chrptr == NIL)
426 && (strptr < blksptr || blksptr == NIL)
427 && (strptr < blkeptr || blkeptr == NIL)) {
428 putKcp (s, strptr-1, FALSE);
434 /* start of a character string? */
436 if ((chrptr < blksptr || blksptr == NIL)
437 && (chrptr < blkeptr || blkeptr == NIL)) {
438 putKcp (s, chrptr-1, FALSE);
444 /* end of a lexical block */
445 if (blkeptr != NIL) {
446 if (blkeptr < blksptr || blksptr == NIL) {
447 putKcp (s, blkeptr - 1, FALSE);
449 if (blklevel > 0 /* sanity */)
451 if (psptr >= 0 && plstack[psptr] >= blklevel) {
453 /* end of current procedure */
457 blklevel = plstack[psptr];
459 /* see if we should print the last proc name */
469 /* start of a lexical block */
470 if (blksptr != NIL) {
471 putKcp (s, blksptr - 1, FALSE);
477 /* check for end of comment */
479 comptr = expmatch (s, l_comend, dummy);
480 acmptr = expmatch (s, l_acmend, dummy);
481 if (((comtype == STANDARD) && (comptr != NIL)) ||
482 ((comtype == ALTERNATE) && (acmptr != NIL))) {
483 if (comtype == STANDARD) {
484 putKcp (s, comptr-1, TRUE);
487 putKcp (s, acmptr-1, TRUE);
494 putKcp (s, s + strlen(s) -1, TRUE);
499 /* check for end of string */
501 if ((strptr = expmatch (s, l_strend, dummy)) != NIL) {
502 putKcp (s, strptr-1, TRUE);
507 putKcp (s, s+strlen(s)-1, TRUE);
512 /* check for end of character string */
514 if ((chrptr = expmatch (s, l_chrend, dummy)) != NIL) {
515 putKcp (s, chrptr-1, TRUE);
520 putKcp (s, s+strlen(s)-1, TRUE);
526 /* print out the line */
527 putKcp (s, s + strlen(s) -1, FALSE);
532 /* force: true if we should force nokeyw */
534 putKcp(char *start, char *end, boolean force)
539 while (start <= end) {
541 if (*start == ' ' || *start == '\t') {
546 while (*start == ' ' || *start == '\t')
552 /* take care of nice tab stops */
553 if (*start == '\t') {
554 while (*start == '\t')
556 i = tabs(s_start, start) - margin / 8;
557 printf("\\h'|%dn'", i * 10 + 1 - margin % 8);
561 if (!nokeyw && !force)
562 if ((*start == '#' || isidchr(*start))
563 && (start == s_start || !isidchr(start[-1]))) {
568 putcp((unsigned char)*start++);
575 putcp ((unsigned char)*start++);
581 tabs(char *s, char *os)
584 return (width(s, os) / 8);
588 width(char *s, char *os)
659 ps("\\fI\\h'\\w' 'u-\\w'/'u'/\\fP");
664 putchar('^'), c |= '@';
672 * look for a process beginning on this line
678 if (!l_toplex || blklevel == 0)
679 if (expmatch (s, l_prcbeg, pname) != NIL) {
686 /* iskw - check to see if the next word is a keyword
692 char **ss = l_keywds;
696 while (++cp, isidchr(*cp))
698 while ((cp = *ss++) != NULL)
699 if (!STRNCMP(s,cp,i) && !isidchr(cp[i]))