Annotation of src/usr.bin/mandoc/main.c, Revision 1.24
1.24 ! schwarze 1: /* $Id: main.c,v 1.23 2010/04/13 06:52:12 jmc Exp $ */
1.1 kristaps 2: /*
1.2 schwarze 3: * Copyright (c) 2008, 2009 Kristaps Dzonsons <kristaps@kth.se>
1.1 kristaps 4: *
5: * Permission to use, copy, modify, and distribute this software for any
1.2 schwarze 6: * purpose with or without fee is hereby granted, provided that the above
7: * copyright notice and this permission notice appear in all copies.
1.1 kristaps 8: *
1.2 schwarze 9: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12: * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13: * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14: * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15: * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
1.1 kristaps 16: */
17: #include <sys/stat.h>
18:
19: #include <assert.h>
20: #include <fcntl.h>
21: #include <stdio.h>
1.17 schwarze 22: #include <stdint.h>
1.1 kristaps 23: #include <stdlib.h>
24: #include <string.h>
25: #include <unistd.h>
26:
27: #include "mdoc.h"
28: #include "man.h"
1.17 schwarze 29: #include "main.h"
30:
31: #define UNCONST(a) ((void *)(uintptr_t)(const void *)(a))
1.1 kristaps 32:
1.16 schwarze 33: typedef void (*out_mdoc)(void *, const struct mdoc *);
34: typedef void (*out_man)(void *, const struct man *);
1.1 kristaps 35: typedef void (*out_free)(void *);
36:
37: struct buf {
38: char *buf;
39: size_t sz;
40: };
41:
42: enum intt {
43: INTT_AUTO,
44: INTT_MDOC,
45: INTT_MAN
46: };
47:
48: enum outt {
49: OUTT_ASCII = 0,
50: OUTT_TREE,
1.17 schwarze 51: OUTT_HTML,
1.21 schwarze 52: OUTT_XHTML,
1.1 kristaps 53: OUTT_LINT
54: };
55:
56: struct curparse {
57: const char *file; /* Current parse. */
58: int fd; /* Current parse. */
59: int wflags;
1.13 schwarze 60: #define WARN_WALL (1 << 0) /* All-warnings mask. */
1.1 kristaps 61: #define WARN_WERR (1 << 2) /* Warnings->errors. */
62: int fflags;
1.22 schwarze 63: #define FL_IGN_SCOPE (1 << 0) /* Ignore scope errors. */
64: #define FL_NIGN_ESCAPE (1 << 1) /* Don't ignore bad escapes. */
65: #define FL_NIGN_MACRO (1 << 2) /* Don't ignore bad macros. */
66: #define FL_IGN_ERRORS (1 << 4) /* Ignore failed parse. */
1.6 schwarze 67: enum intt inttype; /* Input parsers... */
1.1 kristaps 68: struct man *man;
69: struct man *lastman;
70: struct mdoc *mdoc;
71: struct mdoc *lastmdoc;
1.6 schwarze 72: enum outt outtype; /* Output devices... */
1.1 kristaps 73: out_mdoc outmdoc;
74: out_man outman;
75: out_free outfree;
76: void *outdata;
1.18 schwarze 77: char outopts[BUFSIZ];
1.1 kristaps 78: };
79:
1.22 schwarze 80: #define FL_STRICT FL_NIGN_ESCAPE | \
1.24 ! schwarze 81: FL_NIGN_MACRO
1.22 schwarze 82:
1.1 kristaps 83: static int foptions(int *, char *);
1.22 schwarze 84: static int toptions(struct curparse *, char *);
1.1 kristaps 85: static int moptions(enum intt *, char *);
86: static int woptions(int *, char *);
87: static int merr(void *, int, int, const char *);
1.12 schwarze 88: static int mwarn(void *, int, int, const char *);
1.1 kristaps 89: static int ffile(struct buf *, struct buf *,
90: const char *, struct curparse *);
91: static int fdesc(struct buf *, struct buf *,
92: struct curparse *);
93: static int pset(const char *, int, struct curparse *,
94: struct man **, struct mdoc **);
95: static struct man *man_init(struct curparse *);
96: static struct mdoc *mdoc_init(struct curparse *);
1.20 schwarze 97: static void version(void) __attribute__((noreturn));
98: static void usage(void) __attribute__((noreturn));
1.1 kristaps 99:
1.19 schwarze 100: static const char *progname;
1.1 kristaps 101:
102:
103: int
104: main(int argc, char *argv[])
105: {
106: int c, rc;
107: struct buf ln, blk;
108: struct curparse curp;
109:
1.19 schwarze 110: progname = strrchr(argv[0], '/');
111: if (progname == NULL)
112: progname = argv[0];
113: else
114: ++progname;
115:
116: memset(&curp, 0, sizeof(struct curparse));
1.1 kristaps 117:
118: curp.inttype = INTT_AUTO;
119: curp.outtype = OUTT_ASCII;
120:
121: /* LINTED */
1.18 schwarze 122: while (-1 != (c = getopt(argc, argv, "f:m:O:T:VW:")))
1.1 kristaps 123: switch (c) {
124: case ('f'):
125: if ( ! foptions(&curp.fflags, optarg))
1.9 schwarze 126: return(EXIT_FAILURE);
1.1 kristaps 127: break;
128: case ('m'):
129: if ( ! moptions(&curp.inttype, optarg))
1.9 schwarze 130: return(EXIT_FAILURE);
1.1 kristaps 131: break;
1.18 schwarze 132: case ('O'):
133: (void)strlcat(curp.outopts, optarg, BUFSIZ);
134: (void)strlcat(curp.outopts, ",", BUFSIZ);
1.17 schwarze 135: break;
1.1 kristaps 136: case ('T'):
1.22 schwarze 137: if ( ! toptions(&curp, optarg))
1.9 schwarze 138: return(EXIT_FAILURE);
1.1 kristaps 139: break;
140: case ('W'):
141: if ( ! woptions(&curp.wflags, optarg))
1.9 schwarze 142: return(EXIT_FAILURE);
1.1 kristaps 143: break;
1.3 schwarze 144: case ('V'):
145: version();
146: /* NOTREACHED */
1.1 kristaps 147: default:
148: usage();
149: /* NOTREACHED */
150: }
151:
152: argc -= optind;
153: argv += optind;
154:
1.19 schwarze 155: memset(&ln, 0, sizeof(struct buf));
156: memset(&blk, 0, sizeof(struct buf));
1.1 kristaps 157:
158: rc = 1;
159:
1.7 schwarze 160: if (NULL == *argv) {
161: curp.file = "<stdin>";
162: curp.fd = STDIN_FILENO;
1.14 schwarze 163:
164: c = fdesc(&blk, &ln, &curp);
1.22 schwarze 165: if ( ! (FL_IGN_ERRORS & curp.fflags))
1.14 schwarze 166: rc = 1 == c ? 1 : 0;
167: else
168: rc = -1 == c ? 0 : 1;
1.7 schwarze 169: }
1.1 kristaps 170:
171: while (rc && *argv) {
1.14 schwarze 172: c = ffile(&blk, &ln, *argv, &curp);
1.22 schwarze 173: if ( ! (FL_IGN_ERRORS & curp.fflags))
1.14 schwarze 174: rc = 1 == c ? 1 : 0;
175: else
176: rc = -1 == c ? 0 : 1;
177:
1.1 kristaps 178: argv++;
179: if (*argv && rc) {
180: if (curp.lastman)
1.19 schwarze 181: man_reset(curp.lastman);
1.1 kristaps 182: if (curp.lastmdoc)
1.19 schwarze 183: mdoc_reset(curp.lastmdoc);
1.1 kristaps 184: curp.lastman = NULL;
185: curp.lastmdoc = NULL;
186: }
187: }
188:
189: if (blk.buf)
190: free(blk.buf);
191: if (ln.buf)
192: free(ln.buf);
193: if (curp.outfree)
194: (*curp.outfree)(curp.outdata);
195: if (curp.mdoc)
196: mdoc_free(curp.mdoc);
197: if (curp.man)
198: man_free(curp.man);
199:
200: return(rc ? EXIT_SUCCESS : EXIT_FAILURE);
201: }
202:
203:
1.20 schwarze 204: static void
1.3 schwarze 205: version(void)
206: {
207:
1.19 schwarze 208: (void)printf("%s %s\n", progname, VERSION);
1.3 schwarze 209: exit(EXIT_SUCCESS);
210: }
211:
212:
1.20 schwarze 213: static void
1.1 kristaps 214: usage(void)
215: {
216:
1.23 jmc 217: (void)fprintf(stderr, "usage: %s [-V] [-foption] "
1.18 schwarze 218: "[-mformat] [-Ooption] [-Toutput] "
1.23 jmc 219: "[-Werr] [file...]\n", progname);
1.1 kristaps 220: exit(EXIT_FAILURE);
221: }
222:
223:
224: static struct man *
225: man_init(struct curparse *curp)
226: {
227: int pflags;
228: struct man_cb mancb;
229:
230: mancb.man_err = merr;
1.12 schwarze 231: mancb.man_warn = mwarn;
1.1 kristaps 232:
1.6 schwarze 233: /* Defaults from mandoc.1. */
1.2 schwarze 234:
1.24 ! schwarze 235: pflags = MAN_IGN_MACRO | MAN_IGN_ESCAPE;
1.2 schwarze 236:
1.22 schwarze 237: if (curp->fflags & FL_NIGN_MACRO)
1.1 kristaps 238: pflags &= ~MAN_IGN_MACRO;
1.22 schwarze 239: if (curp->fflags & FL_NIGN_ESCAPE)
1.11 schwarze 240: pflags &= ~MAN_IGN_ESCAPE;
1.1 kristaps 241:
1.19 schwarze 242: return(man_alloc(curp, pflags, &mancb));
1.1 kristaps 243: }
244:
245:
246: static struct mdoc *
247: mdoc_init(struct curparse *curp)
248: {
249: int pflags;
250: struct mdoc_cb mdoccb;
251:
252: mdoccb.mdoc_err = merr;
1.12 schwarze 253: mdoccb.mdoc_warn = mwarn;
1.1 kristaps 254:
1.6 schwarze 255: /* Defaults from mandoc.1. */
1.2 schwarze 256:
1.24 ! schwarze 257: pflags = MDOC_IGN_MACRO | MDOC_IGN_ESCAPE;
1.1 kristaps 258:
1.22 schwarze 259: if (curp->fflags & FL_IGN_SCOPE)
1.1 kristaps 260: pflags |= MDOC_IGN_SCOPE;
1.22 schwarze 261: if (curp->fflags & FL_NIGN_ESCAPE)
1.1 kristaps 262: pflags &= ~MDOC_IGN_ESCAPE;
1.22 schwarze 263: if (curp->fflags & FL_NIGN_MACRO)
1.1 kristaps 264: pflags &= ~MDOC_IGN_MACRO;
265:
1.19 schwarze 266: return(mdoc_alloc(curp, pflags, &mdoccb));
1.1 kristaps 267: }
268:
269:
270: static int
271: ffile(struct buf *blk, struct buf *ln,
272: const char *file, struct curparse *curp)
273: {
274: int c;
275:
276: curp->file = file;
277: if (-1 == (curp->fd = open(curp->file, O_RDONLY, 0))) {
1.19 schwarze 278: perror(curp->file);
1.14 schwarze 279: return(-1);
1.1 kristaps 280: }
281:
282: c = fdesc(blk, ln, curp);
283:
284: if (-1 == close(curp->fd))
1.19 schwarze 285: perror(curp->file);
1.1 kristaps 286:
287: return(c);
288: }
289:
290:
291: static int
292: fdesc(struct buf *blk, struct buf *ln, struct curparse *curp)
293: {
294: size_t sz;
295: ssize_t ssz;
296: struct stat st;
1.5 schwarze 297: int j, i, pos, lnn, comment;
1.1 kristaps 298: struct man *man;
299: struct mdoc *mdoc;
300:
301: sz = BUFSIZ;
302: man = NULL;
303: mdoc = NULL;
304:
305: /*
306: * Two buffers: ln and buf. buf is the input buffer optimised
307: * here for each file's block size. ln is a line buffer. Both
308: * growable, hence passed in by ptr-ptr.
309: */
310:
311: if (-1 == fstat(curp->fd, &st))
1.19 schwarze 312: perror(curp->file);
1.1 kristaps 313: else if ((size_t)st.st_blksize > sz)
314: sz = st.st_blksize;
315:
316: if (sz > blk->sz) {
317: blk->buf = realloc(blk->buf, sz);
318: if (NULL == blk->buf) {
1.19 schwarze 319: perror(NULL);
320: exit(EXIT_FAILURE);
1.1 kristaps 321: }
322: blk->sz = sz;
323: }
324:
325: /* Fill buf with file blocksize. */
326:
1.5 schwarze 327: for (lnn = pos = comment = 0; ; ) {
1.1 kristaps 328: if (-1 == (ssz = read(curp->fd, blk->buf, sz))) {
1.19 schwarze 329: perror(curp->file);
1.14 schwarze 330: return(-1);
1.1 kristaps 331: } else if (0 == ssz)
332: break;
333:
334: /* Parse the read block into partial or full lines. */
335:
336: for (i = 0; i < (int)ssz; i++) {
337: if (pos >= (int)ln->sz) {
338: ln->sz += 256; /* Step-size. */
339: ln->buf = realloc(ln->buf, ln->sz);
340: if (NULL == ln->buf) {
1.19 schwarze 341: perror(NULL);
342: return(EXIT_FAILURE);
1.1 kristaps 343: }
344: }
345:
346: if ('\n' != blk->buf[i]) {
1.5 schwarze 347: if (comment)
348: continue;
1.1 kristaps 349: ln->buf[pos++] = blk->buf[i];
1.5 schwarze 350:
351: /* Handle in-line `\"' comments. */
352:
353: if (1 == pos || '\"' != ln->buf[pos - 1])
354: continue;
355:
356: for (j = pos - 2; j >= 0; j--)
357: if ('\\' != ln->buf[j])
358: break;
359:
360: if ( ! ((pos - 2 - j) % 2))
361: continue;
362:
363: comment = 1;
364: pos -= 2;
1.1 kristaps 365: continue;
1.5 schwarze 366: }
1.1 kristaps 367:
1.5 schwarze 368: /* Handle escaped `\\n' newlines. */
1.1 kristaps 369:
1.5 schwarze 370: if (pos > 0 && 0 == comment &&
371: '\\' == ln->buf[pos - 1]) {
1.1 kristaps 372: for (j = pos - 1; j >= 0; j--)
373: if ('\\' != ln->buf[j])
374: break;
375: if ( ! ((pos - j) % 2)) {
376: pos--;
377: lnn++;
378: continue;
379: }
380: }
381:
382: ln->buf[pos] = 0;
383: lnn++;
1.5 schwarze 384:
385: /* If unset, assign parser in pset(). */
1.1 kristaps 386:
387: if ( ! (man || mdoc) && ! pset(ln->buf,
388: pos, curp, &man, &mdoc))
1.14 schwarze 389: return(-1);
1.1 kristaps 390:
1.5 schwarze 391: pos = comment = 0;
392:
393: /* Pass down into parsers. */
1.1 kristaps 394:
395: if (man && ! man_parseln(man, lnn, ln->buf))
396: return(0);
397: if (mdoc && ! mdoc_parseln(mdoc, lnn, ln->buf))
398: return(0);
399: }
400: }
401:
1.5 schwarze 402: /* NOTE a parser may not have been assigned, yet. */
1.1 kristaps 403:
404: if ( ! (man || mdoc)) {
1.19 schwarze 405: fprintf(stderr, "%s: Not a manual\n", curp->file);
1.1 kristaps 406: return(0);
407: }
408:
409: if (mdoc && ! mdoc_endparse(mdoc))
410: return(0);
411: if (man && ! man_endparse(man))
412: return(0);
413:
1.5 schwarze 414: /* If unset, allocate output dev now (if applicable). */
1.1 kristaps 415:
416: if ( ! (curp->outman && curp->outmdoc)) {
417: switch (curp->outtype) {
1.21 schwarze 418: case (OUTT_XHTML):
419: curp->outdata = xhtml_alloc(curp->outopts);
420: curp->outman = html_man;
421: curp->outmdoc = html_mdoc;
422: curp->outfree = html_free;
423: break;
1.17 schwarze 424: case (OUTT_HTML):
425: curp->outdata = html_alloc(curp->outopts);
426: curp->outman = html_man;
427: curp->outmdoc = html_mdoc;
428: curp->outfree = html_free;
429: break;
1.1 kristaps 430: case (OUTT_TREE):
431: curp->outman = tree_man;
432: curp->outmdoc = tree_mdoc;
433: break;
434: case (OUTT_LINT):
435: break;
436: default:
437: curp->outdata = ascii_alloc();
438: curp->outman = terminal_man;
439: curp->outmdoc = terminal_mdoc;
440: curp->outfree = terminal_free;
441: break;
442: }
443: }
444:
445: /* Execute the out device, if it exists. */
446:
447: if (man && curp->outman)
1.16 schwarze 448: (*curp->outman)(curp->outdata, man);
1.1 kristaps 449: if (mdoc && curp->outmdoc)
1.16 schwarze 450: (*curp->outmdoc)(curp->outdata, mdoc);
1.1 kristaps 451:
452: return(1);
453: }
454:
455:
456: static int
457: pset(const char *buf, int pos, struct curparse *curp,
458: struct man **man, struct mdoc **mdoc)
459: {
1.5 schwarze 460: int i;
1.1 kristaps 461:
462: /*
463: * Try to intuit which kind of manual parser should be used. If
464: * passed in by command-line (-man, -mdoc), then use that
465: * explicitly. If passed as -mandoc, then try to guess from the
1.5 schwarze 466: * line: either skip dot-lines, use -mdoc when finding `.Dt', or
1.1 kristaps 467: * default to -man, which is more lenient.
468: */
469:
1.5 schwarze 470: if (buf[0] == '.') {
471: for (i = 1; buf[i]; i++)
472: if (' ' != buf[i] && '\t' != buf[i])
473: break;
474: if (0 == buf[i])
475: return(1);
476: }
1.1 kristaps 477:
478: switch (curp->inttype) {
479: case (INTT_MDOC):
480: if (NULL == curp->mdoc)
481: curp->mdoc = mdoc_init(curp);
482: if (NULL == (*mdoc = curp->mdoc))
483: return(0);
484: curp->lastmdoc = *mdoc;
485: return(1);
486: case (INTT_MAN):
487: if (NULL == curp->man)
488: curp->man = man_init(curp);
489: if (NULL == (*man = curp->man))
490: return(0);
491: curp->lastman = *man;
492: return(1);
493: default:
494: break;
495: }
496:
497: if (pos >= 3 && 0 == memcmp(buf, ".Dd", 3)) {
498: if (NULL == curp->mdoc)
499: curp->mdoc = mdoc_init(curp);
500: if (NULL == (*mdoc = curp->mdoc))
501: return(0);
502: curp->lastmdoc = *mdoc;
503: return(1);
504: }
505:
506: if (NULL == curp->man)
507: curp->man = man_init(curp);
508: if (NULL == (*man = curp->man))
509: return(0);
510: curp->lastman = *man;
511: return(1);
512: }
513:
514:
515: static int
516: moptions(enum intt *tflags, char *arg)
517: {
518:
519: if (0 == strcmp(arg, "doc"))
520: *tflags = INTT_MDOC;
521: else if (0 == strcmp(arg, "andoc"))
522: *tflags = INTT_AUTO;
523: else if (0 == strcmp(arg, "an"))
524: *tflags = INTT_MAN;
525: else {
1.20 schwarze 526: fprintf(stderr, "%s: Bad argument\n", arg);
1.1 kristaps 527: return(0);
528: }
529:
530: return(1);
531: }
532:
533:
534: static int
1.22 schwarze 535: toptions(struct curparse *curp, char *arg)
1.1 kristaps 536: {
537:
538: if (0 == strcmp(arg, "ascii"))
1.22 schwarze 539: curp->outtype = OUTT_ASCII;
540: else if (0 == strcmp(arg, "lint")) {
541: curp->outtype = OUTT_LINT;
542: curp->wflags |= WARN_WALL;
543: curp->fflags |= FL_STRICT;
544: }
1.1 kristaps 545: else if (0 == strcmp(arg, "tree"))
1.22 schwarze 546: curp->outtype = OUTT_TREE;
1.17 schwarze 547: else if (0 == strcmp(arg, "html"))
1.22 schwarze 548: curp->outtype = OUTT_HTML;
1.21 schwarze 549: else if (0 == strcmp(arg, "xhtml"))
1.22 schwarze 550: curp->outtype = OUTT_XHTML;
1.1 kristaps 551: else {
1.20 schwarze 552: fprintf(stderr, "%s: Bad argument\n", arg);
1.1 kristaps 553: return(0);
554: }
555:
556: return(1);
557: }
558:
559:
560: static int
561: foptions(int *fflags, char *arg)
562: {
1.10 schwarze 563: char *v, *o;
1.19 schwarze 564: const char *toks[8];
1.1 kristaps 565:
566: toks[0] = "ign-scope";
567: toks[1] = "no-ign-escape";
568: toks[2] = "no-ign-macro";
1.24 ! schwarze 569: toks[3] = "ign-errors";
! 570: toks[4] = "strict";
! 571: toks[5] = "ign-escape";
! 572: toks[6] = NULL;
1.1 kristaps 573:
1.10 schwarze 574: while (*arg) {
575: o = arg;
1.17 schwarze 576: switch (getsubopt(&arg, UNCONST(toks), &v)) {
1.1 kristaps 577: case (0):
1.22 schwarze 578: *fflags |= FL_IGN_SCOPE;
1.1 kristaps 579: break;
580: case (1):
1.22 schwarze 581: *fflags |= FL_NIGN_ESCAPE;
1.1 kristaps 582: break;
583: case (2):
1.22 schwarze 584: *fflags |= FL_NIGN_MACRO;
1.1 kristaps 585: break;
586: case (3):
1.24 ! schwarze 587: *fflags |= FL_IGN_ERRORS;
1.1 kristaps 588: break;
589: case (4):
1.24 ! schwarze 590: *fflags |= FL_STRICT;
1.14 schwarze 591: break;
592: case (5):
1.22 schwarze 593: *fflags &= ~FL_NIGN_ESCAPE;
1.19 schwarze 594: break;
1.1 kristaps 595: default:
1.20 schwarze 596: fprintf(stderr, "%s: Bad argument\n", o);
1.1 kristaps 597: return(0);
598: }
1.10 schwarze 599: }
1.1 kristaps 600:
601: return(1);
602: }
603:
604:
605: static int
606: woptions(int *wflags, char *arg)
607: {
1.10 schwarze 608: char *v, *o;
1.17 schwarze 609: const char *toks[3];
1.1 kristaps 610:
611: toks[0] = "all";
1.13 schwarze 612: toks[1] = "error";
613: toks[2] = NULL;
1.1 kristaps 614:
1.10 schwarze 615: while (*arg) {
616: o = arg;
1.17 schwarze 617: switch (getsubopt(&arg, UNCONST(toks), &v)) {
1.1 kristaps 618: case (0):
619: *wflags |= WARN_WALL;
620: break;
621: case (1):
622: *wflags |= WARN_WERR;
623: break;
624: default:
1.20 schwarze 625: fprintf(stderr, "%s: Bad argument\n", o);
1.1 kristaps 626: return(0);
627: }
1.10 schwarze 628: }
1.1 kristaps 629:
630: return(1);
631: }
632:
633:
634: /* ARGSUSED */
635: static int
636: merr(void *arg, int line, int col, const char *msg)
637: {
638: struct curparse *curp;
639:
640: curp = (struct curparse *)arg;
1.13 schwarze 641:
1.15 schwarze 642: (void)fprintf(stderr, "%s:%d:%d: error: %s\n",
643: curp->file, line, col + 1, msg);
1.2 schwarze 644:
1.1 kristaps 645: return(0);
646: }
647:
648:
649: static int
1.12 schwarze 650: mwarn(void *arg, int line, int col, const char *msg)
1.1 kristaps 651: {
652: struct curparse *curp;
653:
654: curp = (struct curparse *)arg;
655:
1.12 schwarze 656: if ( ! (curp->wflags & WARN_WALL))
1.1 kristaps 657: return(1);
658:
1.15 schwarze 659: (void)fprintf(stderr, "%s:%d:%d: warning: %s\n",
660: curp->file, line, col + 1, msg);
1.1 kristaps 661:
662: if ( ! (curp->wflags & WARN_WERR))
663: return(1);
1.2 schwarze 664:
1.1 kristaps 665: return(0);
666: }
667:
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