Annotation of mandoc/read.c, Revision 1.23
1.23 ! kristaps 1: /* $Id: read.c,v 1.22 2011/07/22 14:55:07 kristaps Exp $ */
1.1 kristaps 2: /*
3: * Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
4: * Copyright (c) 2010, 2011 Ingo Schwarze <schwarze@openbsd.org>
5: *
6: * Permission to use, copy, modify, and distribute this software for any
7: * purpose with or without fee is hereby granted, provided that the above
8: * copyright notice and this permission notice appear in all copies.
9: *
10: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13: * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14: * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15: * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16: * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17: */
1.11 kristaps 18: #ifdef HAVE_CONFIG_H
19: #include "config.h"
20: #endif
21:
1.15 kristaps 22: #ifdef HAVE_MMAP
23: # include <sys/stat.h>
24: # include <sys/mman.h>
25: #endif
1.1 kristaps 26:
27: #include <assert.h>
28: #include <ctype.h>
29: #include <fcntl.h>
1.3 kristaps 30: #include <stdarg.h>
1.1 kristaps 31: #include <stdio.h>
32: #include <stdlib.h>
33: #include <string.h>
34: #include <unistd.h>
35:
36: #include "mandoc.h"
1.3 kristaps 37: #include "libmandoc.h"
1.1 kristaps 38: #include "mdoc.h"
39: #include "man.h"
40:
41: #ifndef MAP_FILE
42: #define MAP_FILE 0
43: #endif
44:
45: #define REPARSE_LIMIT 1000
46:
47: struct buf {
48: char *buf; /* binary input buffer */
49: size_t sz; /* size of binary buffer */
50: };
51:
52: struct mparse {
53: enum mandoclevel file_status; /* status of current parse */
1.3 kristaps 54: enum mandoclevel wlevel; /* ignore messages below this */
1.1 kristaps 55: int line; /* line number in the file */
56: enum mparset inttype; /* which parser to use */
57: struct man *pman; /* persistent man parser */
58: struct mdoc *pmdoc; /* persistent mdoc parser */
59: struct man *man; /* man parser */
60: struct mdoc *mdoc; /* mdoc parser */
61: struct roff *roff; /* roff parser (!NULL) */
62: int reparse_count; /* finite interp. stack */
63: mandocmsg mmsg; /* warning/error message handler */
64: void *arg; /* argument to mmsg */
1.3 kristaps 65: const char *file;
1.1 kristaps 66: };
67:
68: static void resize_buf(struct buf *, size_t);
69: static void mparse_buf_r(struct mparse *, struct buf, int);
70: static void mparse_readfd_r(struct mparse *, int, const char *, int);
71: static void pset(const char *, int, struct mparse *);
72: static void pdesc(struct mparse *, const char *, int);
73: static int read_whole_file(const char *, int, struct buf *, int *);
74: static void mparse_end(struct mparse *);
75:
1.3 kristaps 76: static const enum mandocerr mandoclimits[MANDOCLEVEL_MAX] = {
77: MANDOCERR_OK,
78: MANDOCERR_WARNING,
79: MANDOCERR_WARNING,
80: MANDOCERR_ERROR,
81: MANDOCERR_FATAL,
82: MANDOCERR_MAX,
83: MANDOCERR_MAX
84: };
85:
1.7 kristaps 86: static const char * const mandocerrs[MANDOCERR_MAX] = {
87: "ok",
88:
89: "generic warning",
90:
91: /* related to the prologue */
92: "no title in document",
93: "document title should be all caps",
94: "unknown manual section",
95: "date missing, using today's date",
96: "cannot parse date, using it verbatim",
97: "prologue macros out of order",
98: "duplicate prologue macro",
99: "macro not allowed in prologue",
100: "macro not allowed in body",
101:
102: /* related to document structure */
103: ".so is fragile, better use ln(1)",
104: "NAME section must come first",
105: "bad NAME section contents",
106: "manual name not yet set",
107: "sections out of conventional order",
108: "duplicate section name",
109: "section not in conventional manual section",
110:
111: /* related to macros and nesting */
112: "skipping obsolete macro",
113: "skipping paragraph macro",
114: "skipping no-space macro",
115: "blocks badly nested",
116: "child violates parent syntax",
117: "nested displays are not portable",
118: "already in literal mode",
119: "line scope broken",
120:
121: /* related to missing macro arguments */
122: "skipping empty macro",
123: "argument count wrong",
124: "missing display type",
125: "list type must come first",
126: "tag lists require a width argument",
127: "missing font type",
128: "skipping end of block that is not open",
129:
130: /* related to bad macro arguments */
131: "skipping argument",
132: "duplicate argument",
133: "duplicate display type",
134: "duplicate list type",
135: "unknown AT&T UNIX version",
136: "bad Boolean value",
137: "unknown font",
138: "unknown standard specifier",
139: "bad width argument",
140:
141: /* related to plain text */
142: "blank line in non-literal context",
143: "tab in non-literal context",
144: "end of line whitespace",
145: "bad comment style",
1.12 kristaps 146: "bad escape sequence",
1.7 kristaps 147: "unterminated quoted string",
1.16 kristaps 148:
149: /* related to equations */
150: "unexpected literal in equation",
1.7 kristaps 151:
152: "generic error",
1.17 kristaps 153:
154: /* related to equations */
1.20 kristaps 155: "unexpected equation scope closure",
156: "equation scope open on exit",
1.21 kristaps 157: "overlapping equation scopes",
158: "unexpected end of equation",
159: "equation syntax error",
1.7 kristaps 160:
161: /* related to tables */
162: "bad table syntax",
163: "bad table option",
164: "bad table layout",
165: "no table layout cells specified",
166: "no table data cells specified",
167: "ignore data in cell",
168: "data block still open",
169: "ignoring extra data cells",
170:
171: "input stack limit exceeded, infinite loop?",
172: "skipping bad character",
173: "escaped character not allowed in a name",
174: "skipping text before the first section header",
175: "skipping unknown macro",
176: "NOT IMPLEMENTED, please use groff: skipping request",
177: "argument count wrong",
178: "skipping end of block that is not open",
179: "missing end of block",
180: "scope open on exit",
181: "uname(3) system call failed",
182: "macro requires line argument(s)",
183: "macro requires body argument(s)",
184: "macro requires argument(s)",
185: "missing list type",
186: "line argument(s) will be lost",
187: "body argument(s) will be lost",
188:
189: "generic fatal error",
190:
191: "not a manual",
192: "column syntax is inconsistent",
193: "NOT IMPLEMENTED: .Bd -file",
194: "line scope broken, syntax violated",
195: "argument count wrong, violates syntax",
196: "child violates parent syntax",
197: "argument count wrong, violates syntax",
198: "NOT IMPLEMENTED: .so with absolute path or \"..\"",
199: "no document body",
200: "no document prologue",
201: "static buffer exhausted",
202: };
203:
204: static const char * const mandoclevels[MANDOCLEVEL_MAX] = {
205: "SUCCESS",
206: "RESERVED",
207: "WARNING",
208: "ERROR",
209: "FATAL",
210: "BADARG",
211: "SYSERR"
212: };
213:
1.1 kristaps 214: static void
215: resize_buf(struct buf *buf, size_t initial)
216: {
217:
218: buf->sz = buf->sz > initial/2 ? 2 * buf->sz : initial;
219: buf->buf = mandoc_realloc(buf->buf, buf->sz);
220: }
221:
222: static void
223: pset(const char *buf, int pos, struct mparse *curp)
224: {
225: int i;
226:
227: /*
228: * Try to intuit which kind of manual parser should be used. If
229: * passed in by command-line (-man, -mdoc), then use that
230: * explicitly. If passed as -mandoc, then try to guess from the
231: * line: either skip dot-lines, use -mdoc when finding `.Dt', or
232: * default to -man, which is more lenient.
233: *
234: * Separate out pmdoc/pman from mdoc/man: the first persists
235: * through all parsers, while the latter is used per-parse.
236: */
237:
238: if ('.' == buf[0] || '\'' == buf[0]) {
239: for (i = 1; buf[i]; i++)
240: if (' ' != buf[i] && '\t' != buf[i])
241: break;
242: if ('\0' == buf[i])
243: return;
244: }
245:
246: switch (curp->inttype) {
247: case (MPARSE_MDOC):
248: if (NULL == curp->pmdoc)
1.18 kristaps 249: curp->pmdoc = mdoc_alloc(curp->roff, curp);
1.1 kristaps 250: assert(curp->pmdoc);
251: curp->mdoc = curp->pmdoc;
252: return;
253: case (MPARSE_MAN):
254: if (NULL == curp->pman)
1.18 kristaps 255: curp->pman = man_alloc(curp->roff, curp);
1.1 kristaps 256: assert(curp->pman);
257: curp->man = curp->pman;
258: return;
259: default:
260: break;
261: }
262:
263: if (pos >= 3 && 0 == memcmp(buf, ".Dd", 3)) {
264: if (NULL == curp->pmdoc)
1.18 kristaps 265: curp->pmdoc = mdoc_alloc(curp->roff, curp);
1.1 kristaps 266: assert(curp->pmdoc);
267: curp->mdoc = curp->pmdoc;
268: return;
269: }
270:
271: if (NULL == curp->pman)
1.18 kristaps 272: curp->pman = man_alloc(curp->roff, curp);
1.1 kristaps 273: assert(curp->pman);
274: curp->man = curp->pman;
275: }
276:
277: /*
278: * Main parse routine for an opened file. This is called for each
279: * opened file and simply loops around the full input file, possibly
280: * nesting (i.e., with `so').
281: */
282: static void
283: mparse_buf_r(struct mparse *curp, struct buf blk, int start)
284: {
285: const struct tbl_span *span;
286: struct buf ln;
287: enum rofferr rr;
288: int i, of, rc;
289: int pos; /* byte number in the ln buffer */
290: int lnn; /* line number in the real file */
291: unsigned char c;
292:
293: memset(&ln, 0, sizeof(struct buf));
294:
295: lnn = curp->line;
296: pos = 0;
297:
298: for (i = 0; i < (int)blk.sz; ) {
299: if (0 == pos && '\0' == blk.buf[i])
300: break;
301:
302: if (start) {
303: curp->line = lnn;
304: curp->reparse_count = 0;
305: }
306:
307: while (i < (int)blk.sz && (start || '\0' != blk.buf[i])) {
308:
309: /*
310: * When finding an unescaped newline character,
311: * leave the character loop to process the line.
312: * Skip a preceding carriage return, if any.
313: */
314:
315: if ('\r' == blk.buf[i] && i + 1 < (int)blk.sz &&
316: '\n' == blk.buf[i + 1])
317: ++i;
318: if ('\n' == blk.buf[i]) {
319: ++i;
320: ++lnn;
321: break;
322: }
323:
324: /*
325: * Warn about bogus characters. If you're using
326: * non-ASCII encoding, you're screwing your
327: * readers. Since I'd rather this not happen,
328: * I'll be helpful and drop these characters so
329: * we don't display gibberish. Note to manual
330: * writers: use special characters.
331: */
332:
333: c = (unsigned char) blk.buf[i];
334:
335: if ( ! (isascii(c) &&
336: (isgraph(c) || isblank(c)))) {
1.3 kristaps 337: mandoc_msg(MANDOCERR_BADCHAR, curp,
1.1 kristaps 338: curp->line, pos, "ignoring byte");
339: i++;
340: continue;
341: }
342:
343: /* Trailing backslash = a plain char. */
344:
345: if ('\\' != blk.buf[i] || i + 1 == (int)blk.sz) {
346: if (pos >= (int)ln.sz)
347: resize_buf(&ln, 256);
348: ln.buf[pos++] = blk.buf[i++];
349: continue;
350: }
351:
352: /*
353: * Found escape and at least one other character.
354: * When it's a newline character, skip it.
355: * When there is a carriage return in between,
356: * skip that one as well.
357: */
358:
359: if ('\r' == blk.buf[i + 1] && i + 2 < (int)blk.sz &&
360: '\n' == blk.buf[i + 2])
361: ++i;
362: if ('\n' == blk.buf[i + 1]) {
363: i += 2;
364: ++lnn;
365: continue;
366: }
367:
1.13 kristaps 368: if ('"' == blk.buf[i + 1] || '#' == blk.buf[i + 1]) {
1.1 kristaps 369: i += 2;
370: /* Comment, skip to end of line */
371: for (; i < (int)blk.sz; ++i) {
372: if ('\n' == blk.buf[i]) {
373: ++i;
374: ++lnn;
375: break;
376: }
377: }
378:
379: /* Backout trailing whitespaces */
380: for (; pos > 0; --pos) {
381: if (ln.buf[pos - 1] != ' ')
382: break;
383: if (pos > 2 && ln.buf[pos - 2] == '\\')
384: break;
385: }
386: break;
387: }
388:
389: /* Some other escape sequence, copy & cont. */
390:
391: if (pos + 1 >= (int)ln.sz)
392: resize_buf(&ln, 256);
393:
394: ln.buf[pos++] = blk.buf[i++];
395: ln.buf[pos++] = blk.buf[i++];
396: }
397:
398: if (pos >= (int)ln.sz)
399: resize_buf(&ln, 256);
400:
401: ln.buf[pos] = '\0';
402:
403: /*
404: * A significant amount of complexity is contained by
405: * the roff preprocessor. It's line-oriented but can be
406: * expressed on one line, so we need at times to
407: * readjust our starting point and re-run it. The roff
408: * preprocessor can also readjust the buffers with new
409: * data, so we pass them in wholesale.
410: */
411:
412: of = 0;
413:
414: rerun:
415: rr = roff_parseln
416: (curp->roff, curp->line,
417: &ln.buf, &ln.sz, of, &of);
418:
419: switch (rr) {
420: case (ROFF_REPARSE):
421: if (REPARSE_LIMIT >= ++curp->reparse_count)
422: mparse_buf_r(curp, ln, 0);
423: else
1.3 kristaps 424: mandoc_msg(MANDOCERR_ROFFLOOP, curp,
1.1 kristaps 425: curp->line, pos, NULL);
426: pos = 0;
427: continue;
428: case (ROFF_APPEND):
429: pos = (int)strlen(ln.buf);
430: continue;
431: case (ROFF_RERUN):
432: goto rerun;
433: case (ROFF_IGN):
434: pos = 0;
435: continue;
436: case (ROFF_ERR):
437: assert(MANDOCLEVEL_FATAL <= curp->file_status);
438: break;
439: case (ROFF_SO):
440: mparse_readfd_r(curp, -1, ln.buf + of, 1);
441: if (MANDOCLEVEL_FATAL <= curp->file_status)
442: break;
443: pos = 0;
444: continue;
445: default:
446: break;
447: }
448:
449: /*
450: * If we encounter errors in the recursive parse, make
451: * sure we don't continue parsing.
452: */
453:
454: if (MANDOCLEVEL_FATAL <= curp->file_status)
455: break;
456:
457: /*
458: * If input parsers have not been allocated, do so now.
1.14 kristaps 459: * We keep these instanced between parsers, but set them
1.1 kristaps 460: * locally per parse routine since we can use different
461: * parsers with each one.
462: */
463:
464: if ( ! (curp->man || curp->mdoc))
465: pset(ln.buf + of, pos - of, curp);
466:
467: /*
468: * Lastly, push down into the parsers themselves. One
469: * of these will have already been set in the pset()
470: * routine.
471: * If libroff returns ROFF_TBL, then add it to the
472: * currently open parse. Since we only get here if
473: * there does exist data (see tbl_data.c), we're
474: * guaranteed that something's been allocated.
475: * Do the same for ROFF_EQN.
476: */
477:
478: rc = -1;
479:
480: if (ROFF_TBL == rr)
481: while (NULL != (span = roff_span(curp->roff))) {
482: rc = curp->man ?
483: man_addspan(curp->man, span) :
484: mdoc_addspan(curp->mdoc, span);
485: if (0 == rc)
486: break;
487: }
488: else if (ROFF_EQN == rr)
489: rc = curp->mdoc ?
490: mdoc_addeqn(curp->mdoc,
491: roff_eqn(curp->roff)) :
492: man_addeqn(curp->man,
493: roff_eqn(curp->roff));
494: else if (curp->man || curp->mdoc)
495: rc = curp->man ?
496: man_parseln(curp->man,
497: curp->line, ln.buf, of) :
498: mdoc_parseln(curp->mdoc,
499: curp->line, ln.buf, of);
500:
501: if (0 == rc) {
502: assert(MANDOCLEVEL_FATAL <= curp->file_status);
503: break;
504: }
505:
506: /* Temporary buffers typically are not full. */
507:
508: if (0 == start && '\0' == blk.buf[i])
509: break;
510:
511: /* Start the next input line. */
512:
513: pos = 0;
514: }
515:
516: free(ln.buf);
517: }
518:
519: static void
520: pdesc(struct mparse *curp, const char *file, int fd)
521: {
522: struct buf blk;
523: int with_mmap;
524:
525: /*
526: * Run for each opened file; may be called more than once for
527: * each full parse sequence if the opened file is nested (i.e.,
528: * from `so'). Simply sucks in the whole file and moves into
529: * the parse phase for the file.
530: */
531:
532: if ( ! read_whole_file(file, fd, &blk, &with_mmap)) {
533: curp->file_status = MANDOCLEVEL_SYSERR;
534: return;
535: }
536:
537: /* Line number is per-file. */
538:
539: curp->line = 1;
540:
541: mparse_buf_r(curp, blk, 1);
542:
1.15 kristaps 543: #ifdef HAVE_MMAP
1.1 kristaps 544: if (with_mmap)
545: munmap(blk.buf, blk.sz);
546: else
1.15 kristaps 547: #endif
1.1 kristaps 548: free(blk.buf);
549: }
550:
551: static int
552: read_whole_file(const char *file, int fd, struct buf *fb, int *with_mmap)
553: {
554: size_t off;
555: ssize_t ssz;
556:
1.15 kristaps 557: #ifdef HAVE_MMAP
558: struct stat st;
1.1 kristaps 559: if (-1 == fstat(fd, &st)) {
560: perror(file);
561: return(0);
562: }
563:
564: /*
565: * If we're a regular file, try just reading in the whole entry
566: * via mmap(). This is faster than reading it into blocks, and
567: * since each file is only a few bytes to begin with, I'm not
568: * concerned that this is going to tank any machines.
569: */
570:
571: if (S_ISREG(st.st_mode)) {
572: if (st.st_size >= (1U << 31)) {
573: fprintf(stderr, "%s: input too large\n", file);
574: return(0);
575: }
576: *with_mmap = 1;
577: fb->sz = (size_t)st.st_size;
578: fb->buf = mmap(NULL, fb->sz, PROT_READ,
579: MAP_FILE|MAP_SHARED, fd, 0);
580: if (fb->buf != MAP_FAILED)
581: return(1);
582: }
1.15 kristaps 583: #endif
1.1 kristaps 584:
585: /*
586: * If this isn't a regular file (like, say, stdin), then we must
587: * go the old way and just read things in bit by bit.
588: */
589:
590: *with_mmap = 0;
591: off = 0;
592: fb->sz = 0;
593: fb->buf = NULL;
594: for (;;) {
595: if (off == fb->sz) {
596: if (fb->sz == (1U << 31)) {
597: fprintf(stderr, "%s: input too large\n", file);
598: break;
599: }
600: resize_buf(fb, 65536);
601: }
602: ssz = read(fd, fb->buf + (int)off, fb->sz - off);
603: if (ssz == 0) {
604: fb->sz = off;
605: return(1);
606: }
607: if (ssz == -1) {
608: perror(file);
609: break;
610: }
611: off += (size_t)ssz;
612: }
613:
614: free(fb->buf);
615: fb->buf = NULL;
616: return(0);
617: }
618:
619: static void
620: mparse_end(struct mparse *curp)
621: {
622:
623: if (MANDOCLEVEL_FATAL <= curp->file_status)
624: return;
625:
626: if (curp->mdoc && ! mdoc_endparse(curp->mdoc)) {
627: assert(MANDOCLEVEL_FATAL <= curp->file_status);
628: return;
629: }
630:
631: if (curp->man && ! man_endparse(curp->man)) {
632: assert(MANDOCLEVEL_FATAL <= curp->file_status);
633: return;
634: }
635:
636: if ( ! (curp->man || curp->mdoc)) {
1.6 kristaps 637: mandoc_msg(MANDOCERR_NOTMANUAL, curp, 1, 0, NULL);
1.1 kristaps 638: curp->file_status = MANDOCLEVEL_FATAL;
1.6 kristaps 639: return;
1.1 kristaps 640: }
641:
642: roff_endparse(curp->roff);
643: }
644:
645: static void
646: mparse_readfd_r(struct mparse *curp, int fd, const char *file, int re)
647: {
648: const char *svfile;
649:
650: if (-1 == fd)
651: if (-1 == (fd = open(file, O_RDONLY, 0))) {
652: perror(file);
653: curp->file_status = MANDOCLEVEL_SYSERR;
654: return;
655: }
656:
1.3 kristaps 657: svfile = curp->file;
658: curp->file = file;
1.1 kristaps 659:
660: pdesc(curp, file, fd);
661:
662: if (0 == re && MANDOCLEVEL_FATAL > curp->file_status)
663: mparse_end(curp);
664:
665: if (STDIN_FILENO != fd && -1 == close(fd))
666: perror(file);
667:
1.3 kristaps 668: curp->file = svfile;
1.1 kristaps 669: }
670:
671: enum mandoclevel
672: mparse_readfd(struct mparse *curp, int fd, const char *file)
673: {
674:
675: mparse_readfd_r(curp, fd, file, 0);
676: return(curp->file_status);
677: }
678:
679: struct mparse *
1.4 kristaps 680: mparse_alloc(enum mparset inttype, enum mandoclevel wlevel, mandocmsg mmsg, void *arg)
1.1 kristaps 681: {
682: struct mparse *curp;
1.10 kristaps 683:
684: assert(wlevel <= MANDOCLEVEL_FATAL);
1.1 kristaps 685:
686: curp = mandoc_calloc(1, sizeof(struct mparse));
687:
1.3 kristaps 688: curp->wlevel = wlevel;
1.1 kristaps 689: curp->mmsg = mmsg;
690: curp->arg = arg;
691: curp->inttype = inttype;
692:
1.18 kristaps 693: curp->roff = roff_alloc(curp);
1.1 kristaps 694: return(curp);
695: }
696:
697: void
698: mparse_reset(struct mparse *curp)
699: {
700:
701: roff_reset(curp->roff);
702:
703: if (curp->mdoc)
704: mdoc_reset(curp->mdoc);
705: if (curp->man)
706: man_reset(curp->man);
707:
708: curp->file_status = MANDOCLEVEL_OK;
709: curp->mdoc = NULL;
710: curp->man = NULL;
711: }
712:
713: void
714: mparse_free(struct mparse *curp)
715: {
716:
717: if (curp->pmdoc)
718: mdoc_free(curp->pmdoc);
719: if (curp->pman)
720: man_free(curp->pman);
721: if (curp->roff)
722: roff_free(curp->roff);
723:
724: free(curp);
725: }
726:
727: void
728: mparse_result(struct mparse *curp, struct mdoc **mdoc, struct man **man)
729: {
730:
1.9 kristaps 731: if (mdoc)
732: *mdoc = curp->mdoc;
733: if (man)
734: *man = curp->man;
1.3 kristaps 735: }
736:
737: void
738: mandoc_vmsg(enum mandocerr t, struct mparse *m,
739: int ln, int pos, const char *fmt, ...)
740: {
741: char buf[256];
742: va_list ap;
743:
744: va_start(ap, fmt);
745: vsnprintf(buf, sizeof(buf) - 1, fmt, ap);
746: va_end(ap);
747:
748: mandoc_msg(t, m, ln, pos, buf);
749: }
750:
751: void
752: mandoc_msg(enum mandocerr er, struct mparse *m,
753: int ln, int col, const char *msg)
754: {
755: enum mandoclevel level;
756:
757: level = MANDOCLEVEL_FATAL;
758: while (er < mandoclimits[level])
759: level--;
760:
761: if (level < m->wlevel)
762: return;
763:
1.8 kristaps 764: if (m->mmsg)
765: (*m->mmsg)(er, level, m->file, ln, col, msg);
1.3 kristaps 766:
767: if (m->file_status < level)
768: m->file_status = level;
1.7 kristaps 769: }
770:
771: const char *
772: mparse_strerror(enum mandocerr er)
773: {
774:
775: return(mandocerrs[er]);
776: }
777:
778: const char *
779: mparse_strlevel(enum mandoclevel lvl)
780: {
781: return(mandoclevels[lvl]);
1.1 kristaps 782: }
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