Annotation of mandoc/main.c, Revision 1.22
1.22 ! kristaps 1: /* $Id: main.c,v 1.21 2009/04/02 16:42:35 kristaps Exp $ */
1.1 kristaps 2: /*
3: * Copyright (c) 2008, 2009 Kristaps Dzonsons <kristaps@openbsd.org>
4: *
5: * Permission to use, copy, modify, and distribute this software for any
6: * purpose with or without fee is hereby granted, provided that the
7: * above copyright notice and this permission notice appear in all
8: * copies.
9: *
10: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
11: * WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
12: * WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
13: * AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
14: * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
15: * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
16: * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
17: * PERFORMANCE OF THIS SOFTWARE.
18: */
19: #include <sys/stat.h>
20:
21: #include <assert.h>
22: #include <err.h>
23: #include <fcntl.h>
24: #include <stdio.h>
25: #include <stdlib.h>
26: #include <string.h>
27: #include <unistd.h>
28:
29: #include "mdoc.h"
1.10 kristaps 30: #include "man.h"
1.1 kristaps 31:
1.16 kristaps 32: /* Account for FreeBSD and Linux in our declarations. */
33:
1.3 kristaps 34: #ifdef __linux__
35: extern int getsubopt(char **, char * const *, char **);
36: # ifndef __dead
37: # define __dead __attribute__((__noreturn__))
38: # endif
1.13 kristaps 39: #elif defined(__dead2)
1.10 kristaps 40: # ifndef __dead
41: # define __dead __dead2
42: # endif
1.3 kristaps 43: #endif
44:
1.22 ! kristaps 45: typedef int (*out_mdoc)(void *, const struct mdoc *);
! 46: typedef int (*out_man)(void *, const struct man *);
! 47: typedef void (*out_free)(void *);
! 48:
1.5 kristaps 49: struct buf {
50: char *buf;
51: size_t sz;
52: };
53:
1.19 kristaps 54: enum intt {
55: INTT_AUTO,
56: INTT_MDOC,
57: INTT_MAN
58: };
59:
60: enum outt {
61: OUTT_ASCII = 0,
62: OUTT_TREE,
63: OUTT_LINT
64: };
65:
1.5 kristaps 66: struct curparse {
1.22 ! kristaps 67: const char *file; /* Current parse. */
! 68: int fd; /* Current parse. */
1.5 kristaps 69: int wflags;
1.1 kristaps 70: #define WARN_WALL 0x03 /* All-warnings mask. */
71: #define WARN_WCOMPAT (1 << 0) /* Compatibility warnings. */
72: #define WARN_WSYNTAX (1 << 1) /* Syntax warnings. */
73: #define WARN_WERR (1 << 2) /* Warnings->errors. */
1.22 ! kristaps 74: int fflags; /* Per-intt flags. */
! 75: enum intt inttype; /* Input parsers. */
1.19 kristaps 76: struct man *man;
1.22 ! kristaps 77: struct man *lastman;
1.19 kristaps 78: struct mdoc *mdoc;
1.22 ! kristaps 79: struct mdoc *lastmdoc;
! 80: enum outt outtype; /* Output devices. */
! 81: out_mdoc outmdoc;
! 82: out_man outman;
! 83: out_free outfree;
! 84: void *outdata;
1.5 kristaps 85: };
1.1 kristaps 86:
1.16 kristaps 87: #define IGN_SCOPE (1 << 0) /* Ignore scope errors. */
88: #define IGN_ESCAPE (1 << 1) /* Ignore bad escapes. */
89: #define IGN_MACRO (1 << 2) /* Ignore unknown macros. */
1.20 kristaps 90: #define NO_IGN_MACRO (1 << 3)
1.15 kristaps 91:
1.1 kristaps 92: extern void *ascii_alloc(void);
1.22 ! kristaps 93: extern int tree_mdoc(void *, const struct mdoc *);
! 94: extern int tree_man(void *, const struct man *);
! 95: extern int terminal_mdoc(void *, const struct mdoc *);
! 96: extern int terminal_man(void *, const struct man *);
1.1 kristaps 97: extern void terminal_free(void *);
98:
99: static int foptions(int *, char *);
100: static int toptions(enum outt *, char *);
1.10 kristaps 101: static int moptions(enum intt *, char *);
1.1 kristaps 102: static int woptions(int *, char *);
103: static int merr(void *, int, int, const char *);
1.14 kristaps 104: static int manwarn(void *, int, int, const char *);
105: static int mdocwarn(void *, int, int,
1.1 kristaps 106: enum mdoc_warn, const char *);
1.19 kristaps 107: static int fstdin(struct buf *, struct buf *,
108: struct curparse *);
109: static int ffile(struct buf *, struct buf *,
110: const char *, struct curparse *);
1.5 kristaps 111: static int fdesc(struct buf *, struct buf *,
1.19 kristaps 112: struct curparse *);
1.22 ! kristaps 113: static int pset(const char *, int, struct curparse *,
1.19 kristaps 114: struct man **, struct mdoc **);
115: static struct man *man_init(struct curparse *);
116: static struct mdoc *mdoc_init(struct curparse *);
1.10 kristaps 117: __dead static void version(void);
118: __dead static void usage(void);
1.1 kristaps 119:
1.22 ! kristaps 120: extern char *__progname;
! 121:
1.1 kristaps 122:
123: int
124: main(int argc, char *argv[])
125: {
1.19 kristaps 126: int c, rc;
1.5 kristaps 127: struct buf ln, blk;
128: struct curparse curp;
1.1 kristaps 129:
1.5 kristaps 130: bzero(&curp, sizeof(struct curparse));
131:
1.19 kristaps 132: curp.inttype = INTT_AUTO;
1.22 ! kristaps 133: curp.outtype = OUTT_ASCII;
1.19 kristaps 134:
1.1 kristaps 135: /* LINTED */
1.10 kristaps 136: while (-1 != (c = getopt(argc, argv, "f:m:VW:T:")))
1.1 kristaps 137: switch (c) {
138: case ('f'):
1.19 kristaps 139: if ( ! foptions(&curp.fflags, optarg))
1.1 kristaps 140: return(0);
141: break;
1.10 kristaps 142: case ('m'):
1.19 kristaps 143: if ( ! moptions(&curp.inttype, optarg))
1.10 kristaps 144: return(0);
145: break;
1.1 kristaps 146: case ('T'):
1.22 ! kristaps 147: if ( ! toptions(&curp.outtype, optarg))
1.1 kristaps 148: return(0);
149: break;
150: case ('W'):
1.5 kristaps 151: if ( ! woptions(&curp.wflags, optarg))
1.1 kristaps 152: return(0);
153: break;
154: case ('V'):
155: version();
156: /* NOTREACHED */
157: default:
158: usage();
159: /* NOTREACHED */
160: }
161:
162: argc -= optind;
163: argv += optind;
164:
1.16 kristaps 165: /* Configure buffers. */
166:
1.5 kristaps 167: bzero(&ln, sizeof(struct buf));
168: bzero(&blk, sizeof(struct buf));
1.1 kristaps 169:
1.22 ! kristaps 170: rc = 1;
1.1 kristaps 171:
1.22 ! kristaps 172: if (NULL == *argv)
! 173: if ( ! fstdin(&blk, &ln, &curp))
! 174: rc = 0;
! 175:
! 176: while (rc && *argv) {
! 177: if ( ! ffile(&blk, &ln, *argv, &curp))
! 178: rc = 0;
! 179: argv++;
! 180: if (*argv && rc) {
! 181: if (curp.lastman)
! 182: if ( ! man_reset(curp.lastman))
! 183: rc = 0;
! 184: if (curp.lastmdoc)
! 185: if ( ! mdoc_reset(curp.lastmdoc))
! 186: rc = 0;
! 187: curp.lastman = NULL;
! 188: curp.lastmdoc = NULL;
1.4 kristaps 189: }
1.1 kristaps 190: }
191:
1.5 kristaps 192: if (blk.buf)
193: free(blk.buf);
194: if (ln.buf)
195: free(ln.buf);
1.22 ! kristaps 196: if (curp.outfree)
! 197: (*curp.outfree)(curp.outdata);
1.19 kristaps 198: if (curp.mdoc)
199: mdoc_free(curp.mdoc);
200: if (curp.man)
201: man_free(curp.man);
1.1 kristaps 202:
203: return(rc ? EXIT_SUCCESS : EXIT_FAILURE);
204: }
205:
206:
207: __dead static void
208: version(void)
209: {
210:
211: (void)printf("%s %s\n", __progname, VERSION);
1.18 kristaps 212: exit(EXIT_SUCCESS);
1.1 kristaps 213: }
214:
215:
216: __dead static void
217: usage(void)
218: {
219:
1.12 kristaps 220: (void)fprintf(stderr, "usage: %s [-V] [-foption...] "
221: "[-mformat] [-Toutput] [-Werr...]\n",
222: __progname);
1.18 kristaps 223: exit(EXIT_FAILURE);
1.1 kristaps 224: }
225:
226:
1.19 kristaps 227: static struct man *
228: man_init(struct curparse *curp)
229: {
230: int pflags;
231: struct man *man;
232: struct man_cb mancb;
233:
234: mancb.man_err = merr;
235: mancb.man_warn = manwarn;
236:
1.22 ! kristaps 237: pflags = MAN_IGN_MACRO; /* XXX */
1.19 kristaps 238:
1.20 kristaps 239: if (curp->fflags & NO_IGN_MACRO)
240: pflags &= ~MAN_IGN_MACRO;
1.19 kristaps 241:
242: if (NULL == (man = man_alloc(curp, pflags, &mancb)))
243: warnx("memory exhausted");
244:
245: return(man);
246: }
247:
248:
249: static struct mdoc *
250: mdoc_init(struct curparse *curp)
251: {
252: int pflags;
253: struct mdoc *mdoc;
254: struct mdoc_cb mdoccb;
255:
256: mdoccb.mdoc_msg = NULL;
257: mdoccb.mdoc_err = merr;
258: mdoccb.mdoc_warn = mdocwarn;
259:
1.22 ! kristaps 260: pflags = 0; /* XXX */
1.19 kristaps 261:
262: if (curp->fflags & IGN_SCOPE)
263: pflags |= MDOC_IGN_SCOPE;
264: if (curp->fflags & IGN_ESCAPE)
265: pflags |= MDOC_IGN_ESCAPE;
266: if (curp->fflags & IGN_MACRO)
267: pflags |= MDOC_IGN_MACRO;
268:
269: if (NULL == (mdoc = mdoc_alloc(curp, pflags, &mdoccb)))
270: warnx("memory allocated");
271:
272: return(mdoc);
273: }
274:
275:
276: static int
277: fstdin(struct buf *blk, struct buf *ln, struct curparse *curp)
278: {
279:
280: curp->file = "<stdin>";
281: curp->fd = STDIN_FILENO;
282: return(fdesc(blk, ln, curp));
283: }
284:
285:
1.1 kristaps 286: static int
1.19 kristaps 287: ffile(struct buf *blk, struct buf *ln,
288: const char *file, struct curparse *curp)
1.1 kristaps 289: {
1.19 kristaps 290: int c;
1.1 kristaps 291:
1.19 kristaps 292: curp->file = file;
293: if (-1 == (curp->fd = open(curp->file, O_RDONLY, 0))) {
294: warn("%s", curp->file);
1.1 kristaps 295: return(0);
296: }
297:
1.19 kristaps 298: c = fdesc(blk, ln, curp);
1.1 kristaps 299:
1.19 kristaps 300: if (-1 == close(curp->fd))
301: warn("%s", curp->file);
1.1 kristaps 302:
303: return(c);
304: }
305:
306:
307: static int
1.19 kristaps 308: fdesc(struct buf *blk, struct buf *ln, struct curparse *curp)
1.1 kristaps 309: {
310: size_t sz;
311: ssize_t ssz;
312: struct stat st;
313: int j, i, pos, lnn;
1.19 kristaps 314: struct man *man;
315: struct mdoc *mdoc;
1.10 kristaps 316:
1.19 kristaps 317: sz = BUFSIZ;
318: man = NULL;
319: mdoc = NULL;
1.1 kristaps 320:
321: /*
1.19 kristaps 322: * Two buffers: ln and buf. buf is the input buffer optimised
323: * here for each file's block size. ln is a line buffer. Both
1.1 kristaps 324: * growable, hence passed in by ptr-ptr.
325: */
326:
1.19 kristaps 327: if (-1 == fstat(curp->fd, &st))
328: warnx("%s", curp->file);
1.6 kristaps 329: else if ((size_t)st.st_blksize > sz)
330: sz = st.st_blksize;
1.1 kristaps 331:
1.5 kristaps 332: if (sz > blk->sz) {
333: blk->buf = realloc(blk->buf, sz);
1.19 kristaps 334: if (NULL == blk->buf) {
335: warn("realloc");
336: return(0);
337: }
1.5 kristaps 338: blk->sz = sz;
1.1 kristaps 339: }
340:
1.19 kristaps 341: /* Fill buf with file blocksize. */
1.1 kristaps 342:
1.19 kristaps 343: for (lnn = 0, pos = 0; ; ) {
344: if (-1 == (ssz = read(curp->fd, blk->buf, sz))) {
345: warn("%s", curp->file);
1.1 kristaps 346: return(0);
347: } else if (0 == ssz)
348: break;
349:
1.19 kristaps 350: /* Parse the read block into partial or full lines. */
351:
1.1 kristaps 352: for (i = 0; i < (int)ssz; i++) {
1.5 kristaps 353: if (pos >= (int)ln->sz) {
354: ln->sz += 256; /* Step-size. */
355: ln->buf = realloc(ln->buf, ln->sz);
1.19 kristaps 356: if (NULL == ln->buf) {
357: warn("realloc");
358: return(0);
359: }
1.1 kristaps 360: }
361:
1.5 kristaps 362: if ('\n' != blk->buf[i]) {
363: ln->buf[pos++] = blk->buf[i];
1.1 kristaps 364: continue;
365: }
366:
367: /* Check for CPP-escaped newline. */
368:
1.5 kristaps 369: if (pos > 0 && '\\' == ln->buf[pos - 1]) {
1.1 kristaps 370: for (j = pos - 1; j >= 0; j--)
1.5 kristaps 371: if ('\\' != ln->buf[j])
1.1 kristaps 372: break;
373:
374: if ( ! ((pos - j) % 2)) {
375: pos--;
376: lnn++;
377: continue;
378: }
379: }
380:
1.5 kristaps 381: ln->buf[pos] = 0;
1.19 kristaps 382: lnn++;
383:
384: /*
385: * If no manual parser has been assigned, then
386: * try to assign one in pset(), which may do
387: * nothing at all. After this, parse the manual
388: * line accordingly.
389: */
390:
391: if ( ! (man || mdoc) && ! pset(ln->buf,
392: pos, curp, &man, &mdoc))
1.10 kristaps 393: return(0);
1.19 kristaps 394:
395: pos = 0;
396:
1.10 kristaps 397: if (man && ! man_parseln(man, lnn, ln->buf))
1.1 kristaps 398: return(0);
1.19 kristaps 399: if (mdoc && ! mdoc_parseln(mdoc, lnn, ln->buf))
400: return(0);
1.1 kristaps 401: }
402: }
403:
1.19 kristaps 404: /* Note that a parser may not have been assigned, yet. */
405:
1.22 ! kristaps 406: if ( ! (man || mdoc)) {
! 407: warnx("%s: not a manual", curp->file);
! 408: return(0);
! 409: }
! 410:
! 411: if (mdoc && ! mdoc_endparse(mdoc))
! 412: return(0);
! 413: if (man && ! man_endparse(man))
! 414: return(0);
1.19 kristaps 415:
1.22 ! kristaps 416: /*
! 417: * If an output device hasn't been allocated, see if we should
! 418: * do so now. Note that not all outtypes have functions, so
! 419: * this switch statement may be superfluous, but it's
! 420: * low-overhead enough not to matter very much.
! 421: */
! 422:
! 423: if ( ! (curp->outman && curp->outmdoc)) {
! 424: switch (curp->outtype) {
! 425: case (OUTT_TREE):
! 426: curp->outman = tree_man;
! 427: curp->outmdoc = tree_mdoc;
! 428: break;
! 429: case (OUTT_LINT):
! 430: break;
! 431: default:
! 432: curp->outdata = ascii_alloc();
! 433: curp->outman = terminal_man;
! 434: curp->outmdoc = terminal_mdoc;
! 435: curp->outfree = terminal_free;
! 436: break;
! 437: }
! 438: }
! 439:
! 440: /* Execute the out device, if it exists. */
! 441:
! 442: if (man && curp->outman)
! 443: if ( ! (*curp->outman)(curp->outdata, man))
! 444: return(0);
! 445: if (mdoc && curp->outmdoc)
! 446: if ( ! (*curp->outmdoc)(curp->outdata, mdoc))
! 447: return(0);
! 448:
! 449: return(1);
1.19 kristaps 450: }
451:
452:
453: static int
1.22 ! kristaps 454: pset(const char *buf, int pos, struct curparse *curp,
1.19 kristaps 455: struct man **man, struct mdoc **mdoc)
456: {
457:
458: /*
459: * Try to intuit which kind of manual parser should be used. If
460: * passed in by command-line (-man, -mdoc), then use that
461: * explicitly. If passed as -mandoc, then try to guess from the
462: * line: either skip comments, use -mdoc when finding `.Dt', or
463: * default to -man, which is more lenient.
464: */
465:
466: if (pos >= 3 && 0 == memcmp(buf, ".\\\"", 3))
467: return(1);
1.10 kristaps 468:
1.19 kristaps 469: switch (curp->inttype) {
470: case (INTT_MDOC):
471: if (NULL == curp->mdoc)
472: curp->mdoc = mdoc_init(curp);
473: if (NULL == (*mdoc = curp->mdoc))
474: return(0);
1.22 ! kristaps 475: curp->lastmdoc = *mdoc;
1.19 kristaps 476: return(1);
477: case (INTT_MAN):
478: if (NULL == curp->man)
479: curp->man = man_init(curp);
480: if (NULL == (*man = curp->man))
481: return(0);
1.22 ! kristaps 482: curp->lastman = *man;
1.19 kristaps 483: return(1);
484: default:
485: break;
486: }
487:
488: if (pos >= 3 && 0 == memcmp(buf, ".Dd", 3)) {
489: if (NULL == curp->mdoc)
490: curp->mdoc = mdoc_init(curp);
491: if (NULL == (*mdoc = curp->mdoc))
492: return(0);
1.22 ! kristaps 493: curp->lastmdoc = *mdoc;
1.19 kristaps 494: return(1);
495: }
496:
497: if (NULL == curp->man)
498: curp->man = man_init(curp);
499: if (NULL == (*man = curp->man))
500: return(0);
1.22 ! kristaps 501: curp->lastman = *man;
1.19 kristaps 502: return(1);
1.10 kristaps 503: }
504:
505:
506: static int
507: moptions(enum intt *tflags, char *arg)
508: {
509:
1.17 kristaps 510: if (0 == strcmp(arg, "doc"))
1.10 kristaps 511: *tflags = INTT_MDOC;
1.19 kristaps 512: else if (0 == strcmp(arg, "andoc"))
513: *tflags = INTT_AUTO;
1.17 kristaps 514: else if (0 == strcmp(arg, "an"))
1.10 kristaps 515: *tflags = INTT_MAN;
516: else {
517: warnx("bad argument: -m%s", arg);
518: return(0);
519: }
520:
521: return(1);
1.1 kristaps 522: }
523:
524:
525: static int
526: toptions(enum outt *tflags, char *arg)
527: {
528:
529: if (0 == strcmp(arg, "ascii"))
530: *tflags = OUTT_ASCII;
531: else if (0 == strcmp(arg, "lint"))
532: *tflags = OUTT_LINT;
533: else if (0 == strcmp(arg, "tree"))
534: *tflags = OUTT_TREE;
535: else {
536: warnx("bad argument: -T%s", arg);
537: return(0);
538: }
539:
540: return(1);
541: }
542:
543:
544: /*
545: * Parse out the options for [-fopt...] setting compiler options. These
546: * can be comma-delimited or called again.
547: */
548: static int
549: foptions(int *fflags, char *arg)
550: {
551: char *v;
1.20 kristaps 552: char *toks[5];
1.1 kristaps 553:
554: toks[0] = "ign-scope";
555: toks[1] = "ign-escape";
556: toks[2] = "ign-macro";
1.22 ! kristaps 557: toks[3] = "no-ign-macro";
! 558: toks[4] = NULL;
1.1 kristaps 559:
560: while (*arg)
561: switch (getsubopt(&arg, toks, &v)) {
562: case (0):
1.15 kristaps 563: *fflags |= IGN_SCOPE;
1.1 kristaps 564: break;
565: case (1):
1.15 kristaps 566: *fflags |= IGN_ESCAPE;
1.1 kristaps 567: break;
568: case (2):
1.15 kristaps 569: *fflags |= IGN_MACRO;
1.1 kristaps 570: break;
1.20 kristaps 571: case (3):
572: *fflags |= NO_IGN_MACRO;
573: break;
1.1 kristaps 574: default:
575: warnx("bad argument: -f%s", arg);
576: return(0);
577: }
578:
579: return(1);
580: }
581:
582:
583: /*
584: * Parse out the options for [-Werr...], which sets warning modes.
585: * These can be comma-delimited or called again.
586: */
587: static int
588: woptions(int *wflags, char *arg)
589: {
590: char *v;
591: char *toks[5];
592:
593: toks[0] = "all";
594: toks[1] = "compat";
595: toks[2] = "syntax";
596: toks[3] = "error";
597: toks[4] = NULL;
598:
599: while (*arg)
600: switch (getsubopt(&arg, toks, &v)) {
601: case (0):
602: *wflags |= WARN_WALL;
603: break;
604: case (1):
605: *wflags |= WARN_WCOMPAT;
606: break;
607: case (2):
608: *wflags |= WARN_WSYNTAX;
609: break;
610: case (3):
611: *wflags |= WARN_WERR;
612: break;
613: default:
614: warnx("bad argument: -W%s", arg);
615: return(0);
616: }
617:
618: return(1);
619: }
620:
621:
1.2 kristaps 622: /* ARGSUSED */
1.1 kristaps 623: static int
624: merr(void *arg, int line, int col, const char *msg)
625: {
1.5 kristaps 626: struct curparse *curp;
627:
628: curp = (struct curparse *)arg;
1.1 kristaps 629:
1.5 kristaps 630: warnx("%s:%d: error: %s (column %d)",
631: curp->file, line, msg, col);
1.1 kristaps 632: return(0);
633: }
634:
635:
636: static int
1.14 kristaps 637: mdocwarn(void *arg, int line, int col,
1.1 kristaps 638: enum mdoc_warn type, const char *msg)
639: {
1.5 kristaps 640: struct curparse *curp;
1.1 kristaps 641: char *wtype;
642:
1.5 kristaps 643: curp = (struct curparse *)arg;
1.1 kristaps 644: wtype = NULL;
645:
646: switch (type) {
647: case (WARN_COMPAT):
648: wtype = "compat";
1.5 kristaps 649: if (curp->wflags & WARN_WCOMPAT)
1.1 kristaps 650: break;
651: return(1);
652: case (WARN_SYNTAX):
653: wtype = "syntax";
1.5 kristaps 654: if (curp->wflags & WARN_WSYNTAX)
1.1 kristaps 655: break;
656: return(1);
657: }
658:
659: assert(wtype);
1.5 kristaps 660: warnx("%s:%d: %s warning: %s (column %d)",
661: curp->file, line, wtype, msg, col);
1.1 kristaps 662:
1.5 kristaps 663: if ( ! (curp->wflags & WARN_WERR))
1.1 kristaps 664: return(1);
665:
666: warnx("%s: considering warnings as errors",
667: __progname);
668: return(0);
669: }
670:
671:
1.14 kristaps 672: static int
673: manwarn(void *arg, int line, int col, const char *msg)
674: {
675: struct curparse *curp;
676:
677: curp = (struct curparse *)arg;
678:
679: if ( ! (curp->wflags & WARN_WSYNTAX))
680: return(1);
681:
682: warnx("%s:%d: syntax warning: %s (column %d)",
683: curp->file, line, msg, col);
684:
685: if ( ! (curp->wflags & WARN_WERR))
686: return(1);
687:
688: warnx("%s: considering warnings as errors",
689: __progname);
690: return(0);
691: }
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