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1.22 ! kristaps 1: /* $Id: read.c,v 1.21 2011/07/21 23:30:39 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 */
1.19 kristaps 155: "too many nested equation defines",
1.20 kristaps 156: "unexpected equation scope closure",
157: "equation scope open on exit",
1.21 kristaps 158: "overlapping equation scopes",
159: "unexpected end of equation",
160: "equation syntax error",
1.7 kristaps 161:
162: /* related to tables */
163: "bad table syntax",
164: "bad table option",
165: "bad table layout",
166: "no table layout cells specified",
167: "no table data cells specified",
168: "ignore data in cell",
169: "data block still open",
170: "ignoring extra data cells",
171:
172: "input stack limit exceeded, infinite loop?",
173: "skipping bad character",
174: "escaped character not allowed in a name",
175: "skipping text before the first section header",
176: "skipping unknown macro",
177: "NOT IMPLEMENTED, please use groff: skipping request",
178: "argument count wrong",
179: "skipping end of block that is not open",
180: "missing end of block",
181: "scope open on exit",
182: "uname(3) system call failed",
183: "macro requires line argument(s)",
184: "macro requires body argument(s)",
185: "macro requires argument(s)",
186: "missing list type",
187: "line argument(s) will be lost",
188: "body argument(s) will be lost",
189:
190: "generic fatal error",
191:
192: "not a manual",
193: "column syntax is inconsistent",
194: "NOT IMPLEMENTED: .Bd -file",
195: "line scope broken, syntax violated",
196: "argument count wrong, violates syntax",
197: "child violates parent syntax",
198: "argument count wrong, violates syntax",
199: "NOT IMPLEMENTED: .so with absolute path or \"..\"",
200: "no document body",
201: "no document prologue",
202: "static buffer exhausted",
203: };
204:
205: static const char * const mandoclevels[MANDOCLEVEL_MAX] = {
206: "SUCCESS",
207: "RESERVED",
208: "WARNING",
209: "ERROR",
210: "FATAL",
211: "BADARG",
212: "SYSERR"
213: };
214:
1.1 kristaps 215: static void
216: resize_buf(struct buf *buf, size_t initial)
217: {
218:
219: buf->sz = buf->sz > initial/2 ? 2 * buf->sz : initial;
220: buf->buf = mandoc_realloc(buf->buf, buf->sz);
221: }
222:
223: static void
224: pset(const char *buf, int pos, struct mparse *curp)
225: {
226: int i;
227:
228: /*
229: * Try to intuit which kind of manual parser should be used. If
230: * passed in by command-line (-man, -mdoc), then use that
231: * explicitly. If passed as -mandoc, then try to guess from the
232: * line: either skip dot-lines, use -mdoc when finding `.Dt', or
233: * default to -man, which is more lenient.
234: *
235: * Separate out pmdoc/pman from mdoc/man: the first persists
236: * through all parsers, while the latter is used per-parse.
237: */
238:
239: if ('.' == buf[0] || '\'' == buf[0]) {
240: for (i = 1; buf[i]; i++)
241: if (' ' != buf[i] && '\t' != buf[i])
242: break;
243: if ('\0' == buf[i])
244: return;
245: }
246:
247: switch (curp->inttype) {
248: case (MPARSE_MDOC):
249: if (NULL == curp->pmdoc)
1.18 kristaps 250: curp->pmdoc = mdoc_alloc(curp->roff, curp);
1.1 kristaps 251: assert(curp->pmdoc);
252: curp->mdoc = curp->pmdoc;
253: return;
254: case (MPARSE_MAN):
255: if (NULL == curp->pman)
1.18 kristaps 256: curp->pman = man_alloc(curp->roff, curp);
1.1 kristaps 257: assert(curp->pman);
258: curp->man = curp->pman;
259: return;
260: default:
261: break;
262: }
263:
264: if (pos >= 3 && 0 == memcmp(buf, ".Dd", 3)) {
265: if (NULL == curp->pmdoc)
1.18 kristaps 266: curp->pmdoc = mdoc_alloc(curp->roff, curp);
1.1 kristaps 267: assert(curp->pmdoc);
268: curp->mdoc = curp->pmdoc;
269: return;
270: }
271:
272: if (NULL == curp->pman)
1.18 kristaps 273: curp->pman = man_alloc(curp->roff, curp);
1.1 kristaps 274: assert(curp->pman);
275: curp->man = curp->pman;
276: }
277:
278: /*
279: * Main parse routine for an opened file. This is called for each
280: * opened file and simply loops around the full input file, possibly
281: * nesting (i.e., with `so').
282: */
283: static void
284: mparse_buf_r(struct mparse *curp, struct buf blk, int start)
285: {
286: const struct tbl_span *span;
287: struct buf ln;
288: enum rofferr rr;
289: int i, of, rc;
290: int pos; /* byte number in the ln buffer */
291: int lnn; /* line number in the real file */
292: unsigned char c;
293:
294: memset(&ln, 0, sizeof(struct buf));
295:
296: lnn = curp->line;
297: pos = 0;
298:
299: for (i = 0; i < (int)blk.sz; ) {
300: if (0 == pos && '\0' == blk.buf[i])
301: break;
302:
303: if (start) {
304: curp->line = lnn;
305: curp->reparse_count = 0;
306: }
307:
308: while (i < (int)blk.sz && (start || '\0' != blk.buf[i])) {
309:
310: /*
311: * When finding an unescaped newline character,
312: * leave the character loop to process the line.
313: * Skip a preceding carriage return, if any.
314: */
315:
316: if ('\r' == blk.buf[i] && i + 1 < (int)blk.sz &&
317: '\n' == blk.buf[i + 1])
318: ++i;
319: if ('\n' == blk.buf[i]) {
320: ++i;
321: ++lnn;
322: break;
323: }
324:
325: /*
326: * Warn about bogus characters. If you're using
327: * non-ASCII encoding, you're screwing your
328: * readers. Since I'd rather this not happen,
329: * I'll be helpful and drop these characters so
330: * we don't display gibberish. Note to manual
331: * writers: use special characters.
332: */
333:
334: c = (unsigned char) blk.buf[i];
335:
336: if ( ! (isascii(c) &&
337: (isgraph(c) || isblank(c)))) {
1.3 kristaps 338: mandoc_msg(MANDOCERR_BADCHAR, curp,
1.1 kristaps 339: curp->line, pos, "ignoring byte");
340: i++;
341: continue;
342: }
343:
344: /* Trailing backslash = a plain char. */
345:
346: if ('\\' != blk.buf[i] || i + 1 == (int)blk.sz) {
347: if (pos >= (int)ln.sz)
348: resize_buf(&ln, 256);
349: ln.buf[pos++] = blk.buf[i++];
350: continue;
351: }
352:
353: /*
354: * Found escape and at least one other character.
355: * When it's a newline character, skip it.
356: * When there is a carriage return in between,
357: * skip that one as well.
358: */
359:
360: if ('\r' == blk.buf[i + 1] && i + 2 < (int)blk.sz &&
361: '\n' == blk.buf[i + 2])
362: ++i;
363: if ('\n' == blk.buf[i + 1]) {
364: i += 2;
365: ++lnn;
366: continue;
367: }
368:
1.13 kristaps 369: if ('"' == blk.buf[i + 1] || '#' == blk.buf[i + 1]) {
1.1 kristaps 370: i += 2;
371: /* Comment, skip to end of line */
372: for (; i < (int)blk.sz; ++i) {
373: if ('\n' == blk.buf[i]) {
374: ++i;
375: ++lnn;
376: break;
377: }
378: }
379:
380: /* Backout trailing whitespaces */
381: for (; pos > 0; --pos) {
382: if (ln.buf[pos - 1] != ' ')
383: break;
384: if (pos > 2 && ln.buf[pos - 2] == '\\')
385: break;
386: }
387: break;
388: }
389:
390: /* Some other escape sequence, copy & cont. */
391:
392: if (pos + 1 >= (int)ln.sz)
393: resize_buf(&ln, 256);
394:
395: ln.buf[pos++] = blk.buf[i++];
396: ln.buf[pos++] = blk.buf[i++];
397: }
398:
399: if (pos >= (int)ln.sz)
400: resize_buf(&ln, 256);
401:
402: ln.buf[pos] = '\0';
403:
404: /*
405: * A significant amount of complexity is contained by
406: * the roff preprocessor. It's line-oriented but can be
407: * expressed on one line, so we need at times to
408: * readjust our starting point and re-run it. The roff
409: * preprocessor can also readjust the buffers with new
410: * data, so we pass them in wholesale.
411: */
412:
413: of = 0;
414:
415: rerun:
416: rr = roff_parseln
417: (curp->roff, curp->line,
418: &ln.buf, &ln.sz, of, &of);
419:
420: switch (rr) {
421: case (ROFF_REPARSE):
422: if (REPARSE_LIMIT >= ++curp->reparse_count)
423: mparse_buf_r(curp, ln, 0);
424: else
1.3 kristaps 425: mandoc_msg(MANDOCERR_ROFFLOOP, curp,
1.1 kristaps 426: curp->line, pos, NULL);
427: pos = 0;
428: continue;
429: case (ROFF_APPEND):
430: pos = (int)strlen(ln.buf);
431: continue;
432: case (ROFF_RERUN):
433: goto rerun;
434: case (ROFF_IGN):
435: pos = 0;
436: continue;
437: case (ROFF_ERR):
438: assert(MANDOCLEVEL_FATAL <= curp->file_status);
439: break;
440: case (ROFF_SO):
441: mparse_readfd_r(curp, -1, ln.buf + of, 1);
442: if (MANDOCLEVEL_FATAL <= curp->file_status)
443: break;
444: pos = 0;
445: continue;
446: default:
447: break;
448: }
449:
450: /*
451: * If we encounter errors in the recursive parse, make
452: * sure we don't continue parsing.
453: */
454:
455: if (MANDOCLEVEL_FATAL <= curp->file_status)
456: break;
457:
458: /*
459: * If input parsers have not been allocated, do so now.
1.14 kristaps 460: * We keep these instanced between parsers, but set them
1.1 kristaps 461: * locally per parse routine since we can use different
462: * parsers with each one.
463: */
464:
465: if ( ! (curp->man || curp->mdoc))
466: pset(ln.buf + of, pos - of, curp);
467:
468: /*
469: * Lastly, push down into the parsers themselves. One
470: * of these will have already been set in the pset()
471: * routine.
472: * If libroff returns ROFF_TBL, then add it to the
473: * currently open parse. Since we only get here if
474: * there does exist data (see tbl_data.c), we're
475: * guaranteed that something's been allocated.
476: * Do the same for ROFF_EQN.
477: */
478:
479: rc = -1;
480:
481: if (ROFF_TBL == rr)
482: while (NULL != (span = roff_span(curp->roff))) {
483: rc = curp->man ?
484: man_addspan(curp->man, span) :
485: mdoc_addspan(curp->mdoc, span);
486: if (0 == rc)
487: break;
488: }
489: else if (ROFF_EQN == rr)
490: rc = curp->mdoc ?
491: mdoc_addeqn(curp->mdoc,
492: roff_eqn(curp->roff)) :
493: man_addeqn(curp->man,
494: roff_eqn(curp->roff));
495: else if (curp->man || curp->mdoc)
496: rc = curp->man ?
497: man_parseln(curp->man,
498: curp->line, ln.buf, of) :
499: mdoc_parseln(curp->mdoc,
500: curp->line, ln.buf, of);
501:
502: if (0 == rc) {
503: assert(MANDOCLEVEL_FATAL <= curp->file_status);
504: break;
505: }
506:
507: /* Temporary buffers typically are not full. */
508:
509: if (0 == start && '\0' == blk.buf[i])
510: break;
511:
512: /* Start the next input line. */
513:
514: pos = 0;
515: }
516:
517: free(ln.buf);
518: }
519:
520: static void
521: pdesc(struct mparse *curp, const char *file, int fd)
522: {
523: struct buf blk;
524: int with_mmap;
525:
526: /*
527: * Run for each opened file; may be called more than once for
528: * each full parse sequence if the opened file is nested (i.e.,
529: * from `so'). Simply sucks in the whole file and moves into
530: * the parse phase for the file.
531: */
532:
533: if ( ! read_whole_file(file, fd, &blk, &with_mmap)) {
534: curp->file_status = MANDOCLEVEL_SYSERR;
535: return;
536: }
537:
538: /* Line number is per-file. */
539:
540: curp->line = 1;
541:
542: mparse_buf_r(curp, blk, 1);
543:
1.15 kristaps 544: #ifdef HAVE_MMAP
1.1 kristaps 545: if (with_mmap)
546: munmap(blk.buf, blk.sz);
547: else
1.15 kristaps 548: #endif
1.1 kristaps 549: free(blk.buf);
550: }
551:
552: static int
553: read_whole_file(const char *file, int fd, struct buf *fb, int *with_mmap)
554: {
555: size_t off;
556: ssize_t ssz;
557:
1.15 kristaps 558: #ifdef HAVE_MMAP
559: struct stat st;
1.1 kristaps 560: if (-1 == fstat(fd, &st)) {
561: perror(file);
562: return(0);
563: }
564:
565: /*
566: * If we're a regular file, try just reading in the whole entry
567: * via mmap(). This is faster than reading it into blocks, and
568: * since each file is only a few bytes to begin with, I'm not
569: * concerned that this is going to tank any machines.
570: */
571:
572: if (S_ISREG(st.st_mode)) {
573: if (st.st_size >= (1U << 31)) {
574: fprintf(stderr, "%s: input too large\n", file);
575: return(0);
576: }
577: *with_mmap = 1;
578: fb->sz = (size_t)st.st_size;
579: fb->buf = mmap(NULL, fb->sz, PROT_READ,
580: MAP_FILE|MAP_SHARED, fd, 0);
581: if (fb->buf != MAP_FAILED)
582: return(1);
583: }
1.15 kristaps 584: #endif
1.1 kristaps 585:
586: /*
587: * If this isn't a regular file (like, say, stdin), then we must
588: * go the old way and just read things in bit by bit.
589: */
590:
591: *with_mmap = 0;
592: off = 0;
593: fb->sz = 0;
594: fb->buf = NULL;
595: for (;;) {
596: if (off == fb->sz) {
597: if (fb->sz == (1U << 31)) {
598: fprintf(stderr, "%s: input too large\n", file);
599: break;
600: }
601: resize_buf(fb, 65536);
602: }
603: ssz = read(fd, fb->buf + (int)off, fb->sz - off);
604: if (ssz == 0) {
605: fb->sz = off;
606: return(1);
607: }
608: if (ssz == -1) {
609: perror(file);
610: break;
611: }
612: off += (size_t)ssz;
613: }
614:
615: free(fb->buf);
616: fb->buf = NULL;
617: return(0);
618: }
619:
620: static void
621: mparse_end(struct mparse *curp)
622: {
623:
624: if (MANDOCLEVEL_FATAL <= curp->file_status)
625: return;
626:
627: if (curp->mdoc && ! mdoc_endparse(curp->mdoc)) {
628: assert(MANDOCLEVEL_FATAL <= curp->file_status);
629: return;
630: }
631:
632: if (curp->man && ! man_endparse(curp->man)) {
633: assert(MANDOCLEVEL_FATAL <= curp->file_status);
634: return;
635: }
636:
637: if ( ! (curp->man || curp->mdoc)) {
1.6 kristaps 638: mandoc_msg(MANDOCERR_NOTMANUAL, curp, 1, 0, NULL);
1.1 kristaps 639: curp->file_status = MANDOCLEVEL_FATAL;
1.6 kristaps 640: return;
1.1 kristaps 641: }
642:
643: roff_endparse(curp->roff);
644: }
645:
646: static void
647: mparse_readfd_r(struct mparse *curp, int fd, const char *file, int re)
648: {
649: const char *svfile;
650:
651: if (-1 == fd)
652: if (-1 == (fd = open(file, O_RDONLY, 0))) {
653: perror(file);
654: curp->file_status = MANDOCLEVEL_SYSERR;
655: return;
656: }
657:
1.3 kristaps 658: svfile = curp->file;
659: curp->file = file;
1.1 kristaps 660:
661: pdesc(curp, file, fd);
662:
663: if (0 == re && MANDOCLEVEL_FATAL > curp->file_status)
664: mparse_end(curp);
665:
666: if (STDIN_FILENO != fd && -1 == close(fd))
667: perror(file);
668:
1.3 kristaps 669: curp->file = svfile;
1.1 kristaps 670: }
671:
672: enum mandoclevel
673: mparse_readfd(struct mparse *curp, int fd, const char *file)
674: {
675:
676: mparse_readfd_r(curp, fd, file, 0);
677: return(curp->file_status);
678: }
679:
680: struct mparse *
1.4 kristaps 681: mparse_alloc(enum mparset inttype, enum mandoclevel wlevel, mandocmsg mmsg, void *arg)
1.1 kristaps 682: {
683: struct mparse *curp;
1.10 kristaps 684:
685: assert(wlevel <= MANDOCLEVEL_FATAL);
1.1 kristaps 686:
687: curp = mandoc_calloc(1, sizeof(struct mparse));
688:
1.3 kristaps 689: curp->wlevel = wlevel;
1.1 kristaps 690: curp->mmsg = mmsg;
691: curp->arg = arg;
692: curp->inttype = inttype;
693:
1.18 kristaps 694: curp->roff = roff_alloc(curp);
1.1 kristaps 695: return(curp);
696: }
697:
698: void
699: mparse_reset(struct mparse *curp)
700: {
701:
702: roff_reset(curp->roff);
703:
704: if (curp->mdoc)
705: mdoc_reset(curp->mdoc);
706: if (curp->man)
707: man_reset(curp->man);
708:
709: curp->file_status = MANDOCLEVEL_OK;
710: curp->mdoc = NULL;
711: curp->man = NULL;
712: }
713:
714: void
715: mparse_free(struct mparse *curp)
716: {
717:
718: if (curp->pmdoc)
719: mdoc_free(curp->pmdoc);
720: if (curp->pman)
721: man_free(curp->pman);
722: if (curp->roff)
723: roff_free(curp->roff);
724:
725: free(curp);
726: }
727:
728: void
729: mparse_result(struct mparse *curp, struct mdoc **mdoc, struct man **man)
730: {
731:
1.9 kristaps 732: if (mdoc)
733: *mdoc = curp->mdoc;
734: if (man)
735: *man = curp->man;
1.3 kristaps 736: }
737:
738: void
739: mandoc_vmsg(enum mandocerr t, struct mparse *m,
740: int ln, int pos, const char *fmt, ...)
741: {
742: char buf[256];
743: va_list ap;
744:
745: va_start(ap, fmt);
746: vsnprintf(buf, sizeof(buf) - 1, fmt, ap);
747: va_end(ap);
748:
749: mandoc_msg(t, m, ln, pos, buf);
750: }
751:
752: void
753: mandoc_msg(enum mandocerr er, struct mparse *m,
754: int ln, int col, const char *msg)
755: {
756: enum mandoclevel level;
757:
758: level = MANDOCLEVEL_FATAL;
759: while (er < mandoclimits[level])
760: level--;
761:
762: if (level < m->wlevel)
763: return;
764:
1.8 kristaps 765: if (m->mmsg)
766: (*m->mmsg)(er, level, m->file, ln, col, msg);
1.3 kristaps 767:
768: if (m->file_status < level)
769: m->file_status = level;
1.7 kristaps 770: }
771:
772: const char *
773: mparse_strerror(enum mandocerr er)
774: {
775:
776: return(mandocerrs[er]);
777: }
778:
779: const char *
780: mparse_strlevel(enum mandoclevel lvl)
781: {
782: return(mandoclevels[lvl]);
1.1 kristaps 783: }