Annotation of mandoc/read.c, Revision 1.16
1.16 ! kristaps 1: /* $Id: read.c,v 1.15 2011/05/26 20:36:21 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: struct regset regs; /* roff registers */
63: int reparse_count; /* finite interp. stack */
64: mandocmsg mmsg; /* warning/error message handler */
65: void *arg; /* argument to mmsg */
1.3 kristaps 66: const char *file;
1.1 kristaps 67: };
68:
69: static void resize_buf(struct buf *, size_t);
70: static void mparse_buf_r(struct mparse *, struct buf, int);
71: static void mparse_readfd_r(struct mparse *, int, const char *, int);
72: static void pset(const char *, int, struct mparse *);
73: static void pdesc(struct mparse *, const char *, int);
74: static int read_whole_file(const char *, int, struct buf *, int *);
75: static void mparse_end(struct mparse *);
76:
1.3 kristaps 77: static const enum mandocerr mandoclimits[MANDOCLEVEL_MAX] = {
78: MANDOCERR_OK,
79: MANDOCERR_WARNING,
80: MANDOCERR_WARNING,
81: MANDOCERR_ERROR,
82: MANDOCERR_FATAL,
83: MANDOCERR_MAX,
84: MANDOCERR_MAX
85: };
86:
1.7 kristaps 87: static const char * const mandocerrs[MANDOCERR_MAX] = {
88: "ok",
89:
90: "generic warning",
91:
92: /* related to the prologue */
93: "no title in document",
94: "document title should be all caps",
95: "unknown manual section",
96: "date missing, using today's date",
97: "cannot parse date, using it verbatim",
98: "prologue macros out of order",
99: "duplicate prologue macro",
100: "macro not allowed in prologue",
101: "macro not allowed in body",
102:
103: /* related to document structure */
104: ".so is fragile, better use ln(1)",
105: "NAME section must come first",
106: "bad NAME section contents",
107: "manual name not yet set",
108: "sections out of conventional order",
109: "duplicate section name",
110: "section not in conventional manual section",
111:
112: /* related to macros and nesting */
113: "skipping obsolete macro",
114: "skipping paragraph macro",
115: "skipping no-space macro",
116: "blocks badly nested",
117: "child violates parent syntax",
118: "nested displays are not portable",
119: "already in literal mode",
120: "line scope broken",
121:
122: /* related to missing macro arguments */
123: "skipping empty macro",
124: "argument count wrong",
125: "missing display type",
126: "list type must come first",
127: "tag lists require a width argument",
128: "missing font type",
129: "skipping end of block that is not open",
130:
131: /* related to bad macro arguments */
132: "skipping argument",
133: "duplicate argument",
134: "duplicate display type",
135: "duplicate list type",
136: "unknown AT&T UNIX version",
137: "bad Boolean value",
138: "unknown font",
139: "unknown standard specifier",
140: "bad width argument",
141:
142: /* related to plain text */
143: "blank line in non-literal context",
144: "tab in non-literal context",
145: "end of line whitespace",
146: "bad comment style",
1.12 kristaps 147: "bad escape sequence",
1.7 kristaps 148: "unterminated quoted string",
1.16 ! kristaps 149:
! 150: /* related to equations */
! 151: "unexpected literal in equation",
1.7 kristaps 152:
153: "generic error",
154:
155: /* related to tables */
156: "bad table syntax",
157: "bad table option",
158: "bad table layout",
159: "no table layout cells specified",
160: "no table data cells specified",
161: "ignore data in cell",
162: "data block still open",
163: "ignoring extra data cells",
164:
165: "input stack limit exceeded, infinite loop?",
166: "skipping bad character",
167: "escaped character not allowed in a name",
168: "skipping text before the first section header",
169: "skipping unknown macro",
170: "NOT IMPLEMENTED, please use groff: skipping request",
171: "argument count wrong",
172: "skipping end of block that is not open",
173: "missing end of block",
174: "scope open on exit",
175: "uname(3) system call failed",
176: "macro requires line argument(s)",
177: "macro requires body argument(s)",
178: "macro requires argument(s)",
179: "missing list type",
180: "line argument(s) will be lost",
181: "body argument(s) will be lost",
182:
183: "generic fatal error",
184:
185: "not a manual",
186: "column syntax is inconsistent",
187: "NOT IMPLEMENTED: .Bd -file",
188: "line scope broken, syntax violated",
189: "argument count wrong, violates syntax",
190: "child violates parent syntax",
191: "argument count wrong, violates syntax",
192: "NOT IMPLEMENTED: .so with absolute path or \"..\"",
193: "no document body",
194: "no document prologue",
195: "static buffer exhausted",
196: };
197:
198: static const char * const mandoclevels[MANDOCLEVEL_MAX] = {
199: "SUCCESS",
200: "RESERVED",
201: "WARNING",
202: "ERROR",
203: "FATAL",
204: "BADARG",
205: "SYSERR"
206: };
207:
1.1 kristaps 208: static void
209: resize_buf(struct buf *buf, size_t initial)
210: {
211:
212: buf->sz = buf->sz > initial/2 ? 2 * buf->sz : initial;
213: buf->buf = mandoc_realloc(buf->buf, buf->sz);
214: }
215:
216: static void
217: pset(const char *buf, int pos, struct mparse *curp)
218: {
219: int i;
220:
221: /*
222: * Try to intuit which kind of manual parser should be used. If
223: * passed in by command-line (-man, -mdoc), then use that
224: * explicitly. If passed as -mandoc, then try to guess from the
225: * line: either skip dot-lines, use -mdoc when finding `.Dt', or
226: * default to -man, which is more lenient.
227: *
228: * Separate out pmdoc/pman from mdoc/man: the first persists
229: * through all parsers, while the latter is used per-parse.
230: */
231:
232: if ('.' == buf[0] || '\'' == buf[0]) {
233: for (i = 1; buf[i]; i++)
234: if (' ' != buf[i] && '\t' != buf[i])
235: break;
236: if ('\0' == buf[i])
237: return;
238: }
239:
240: switch (curp->inttype) {
241: case (MPARSE_MDOC):
242: if (NULL == curp->pmdoc)
1.3 kristaps 243: curp->pmdoc = mdoc_alloc(&curp->regs, curp);
1.1 kristaps 244: assert(curp->pmdoc);
245: curp->mdoc = curp->pmdoc;
246: return;
247: case (MPARSE_MAN):
248: if (NULL == curp->pman)
1.3 kristaps 249: curp->pman = man_alloc(&curp->regs, curp);
1.1 kristaps 250: assert(curp->pman);
251: curp->man = curp->pman;
252: return;
253: default:
254: break;
255: }
256:
257: if (pos >= 3 && 0 == memcmp(buf, ".Dd", 3)) {
258: if (NULL == curp->pmdoc)
1.3 kristaps 259: curp->pmdoc = mdoc_alloc(&curp->regs, curp);
1.1 kristaps 260: assert(curp->pmdoc);
261: curp->mdoc = curp->pmdoc;
262: return;
263: }
264:
265: if (NULL == curp->pman)
1.3 kristaps 266: curp->pman = man_alloc(&curp->regs, curp);
1.1 kristaps 267: assert(curp->pman);
268: curp->man = curp->pman;
269: }
270:
271: /*
272: * Main parse routine for an opened file. This is called for each
273: * opened file and simply loops around the full input file, possibly
274: * nesting (i.e., with `so').
275: */
276: static void
277: mparse_buf_r(struct mparse *curp, struct buf blk, int start)
278: {
279: const struct tbl_span *span;
280: struct buf ln;
281: enum rofferr rr;
282: int i, of, rc;
283: int pos; /* byte number in the ln buffer */
284: int lnn; /* line number in the real file */
285: unsigned char c;
286:
287: memset(&ln, 0, sizeof(struct buf));
288:
289: lnn = curp->line;
290: pos = 0;
291:
292: for (i = 0; i < (int)blk.sz; ) {
293: if (0 == pos && '\0' == blk.buf[i])
294: break;
295:
296: if (start) {
297: curp->line = lnn;
298: curp->reparse_count = 0;
299: }
300:
301: while (i < (int)blk.sz && (start || '\0' != blk.buf[i])) {
302:
303: /*
304: * When finding an unescaped newline character,
305: * leave the character loop to process the line.
306: * Skip a preceding carriage return, if any.
307: */
308:
309: if ('\r' == blk.buf[i] && i + 1 < (int)blk.sz &&
310: '\n' == blk.buf[i + 1])
311: ++i;
312: if ('\n' == blk.buf[i]) {
313: ++i;
314: ++lnn;
315: break;
316: }
317:
318: /*
319: * Warn about bogus characters. If you're using
320: * non-ASCII encoding, you're screwing your
321: * readers. Since I'd rather this not happen,
322: * I'll be helpful and drop these characters so
323: * we don't display gibberish. Note to manual
324: * writers: use special characters.
325: */
326:
327: c = (unsigned char) blk.buf[i];
328:
329: if ( ! (isascii(c) &&
330: (isgraph(c) || isblank(c)))) {
1.3 kristaps 331: mandoc_msg(MANDOCERR_BADCHAR, curp,
1.1 kristaps 332: curp->line, pos, "ignoring byte");
333: i++;
334: continue;
335: }
336:
337: /* Trailing backslash = a plain char. */
338:
339: if ('\\' != blk.buf[i] || i + 1 == (int)blk.sz) {
340: if (pos >= (int)ln.sz)
341: resize_buf(&ln, 256);
342: ln.buf[pos++] = blk.buf[i++];
343: continue;
344: }
345:
346: /*
347: * Found escape and at least one other character.
348: * When it's a newline character, skip it.
349: * When there is a carriage return in between,
350: * skip that one as well.
351: */
352:
353: if ('\r' == blk.buf[i + 1] && i + 2 < (int)blk.sz &&
354: '\n' == blk.buf[i + 2])
355: ++i;
356: if ('\n' == blk.buf[i + 1]) {
357: i += 2;
358: ++lnn;
359: continue;
360: }
361:
1.13 kristaps 362: if ('"' == blk.buf[i + 1] || '#' == blk.buf[i + 1]) {
1.1 kristaps 363: i += 2;
364: /* Comment, skip to end of line */
365: for (; i < (int)blk.sz; ++i) {
366: if ('\n' == blk.buf[i]) {
367: ++i;
368: ++lnn;
369: break;
370: }
371: }
372:
373: /* Backout trailing whitespaces */
374: for (; pos > 0; --pos) {
375: if (ln.buf[pos - 1] != ' ')
376: break;
377: if (pos > 2 && ln.buf[pos - 2] == '\\')
378: break;
379: }
380: break;
381: }
382:
383: /* Some other escape sequence, copy & cont. */
384:
385: if (pos + 1 >= (int)ln.sz)
386: resize_buf(&ln, 256);
387:
388: ln.buf[pos++] = blk.buf[i++];
389: ln.buf[pos++] = blk.buf[i++];
390: }
391:
392: if (pos >= (int)ln.sz)
393: resize_buf(&ln, 256);
394:
395: ln.buf[pos] = '\0';
396:
397: /*
398: * A significant amount of complexity is contained by
399: * the roff preprocessor. It's line-oriented but can be
400: * expressed on one line, so we need at times to
401: * readjust our starting point and re-run it. The roff
402: * preprocessor can also readjust the buffers with new
403: * data, so we pass them in wholesale.
404: */
405:
406: of = 0;
407:
408: rerun:
409: rr = roff_parseln
410: (curp->roff, curp->line,
411: &ln.buf, &ln.sz, of, &of);
412:
413: switch (rr) {
414: case (ROFF_REPARSE):
415: if (REPARSE_LIMIT >= ++curp->reparse_count)
416: mparse_buf_r(curp, ln, 0);
417: else
1.3 kristaps 418: mandoc_msg(MANDOCERR_ROFFLOOP, curp,
1.1 kristaps 419: curp->line, pos, NULL);
420: pos = 0;
421: continue;
422: case (ROFF_APPEND):
423: pos = (int)strlen(ln.buf);
424: continue;
425: case (ROFF_RERUN):
426: goto rerun;
427: case (ROFF_IGN):
428: pos = 0;
429: continue;
430: case (ROFF_ERR):
431: assert(MANDOCLEVEL_FATAL <= curp->file_status);
432: break;
433: case (ROFF_SO):
434: mparse_readfd_r(curp, -1, ln.buf + of, 1);
435: if (MANDOCLEVEL_FATAL <= curp->file_status)
436: break;
437: pos = 0;
438: continue;
439: default:
440: break;
441: }
442:
443: /*
444: * If we encounter errors in the recursive parse, make
445: * sure we don't continue parsing.
446: */
447:
448: if (MANDOCLEVEL_FATAL <= curp->file_status)
449: break;
450:
451: /*
452: * If input parsers have not been allocated, do so now.
1.14 kristaps 453: * We keep these instanced between parsers, but set them
1.1 kristaps 454: * locally per parse routine since we can use different
455: * parsers with each one.
456: */
457:
458: if ( ! (curp->man || curp->mdoc))
459: pset(ln.buf + of, pos - of, curp);
460:
461: /*
462: * Lastly, push down into the parsers themselves. One
463: * of these will have already been set in the pset()
464: * routine.
465: * If libroff returns ROFF_TBL, then add it to the
466: * currently open parse. Since we only get here if
467: * there does exist data (see tbl_data.c), we're
468: * guaranteed that something's been allocated.
469: * Do the same for ROFF_EQN.
470: */
471:
472: rc = -1;
473:
474: if (ROFF_TBL == rr)
475: while (NULL != (span = roff_span(curp->roff))) {
476: rc = curp->man ?
477: man_addspan(curp->man, span) :
478: mdoc_addspan(curp->mdoc, span);
479: if (0 == rc)
480: break;
481: }
482: else if (ROFF_EQN == rr)
483: rc = curp->mdoc ?
484: mdoc_addeqn(curp->mdoc,
485: roff_eqn(curp->roff)) :
486: man_addeqn(curp->man,
487: roff_eqn(curp->roff));
488: else if (curp->man || curp->mdoc)
489: rc = curp->man ?
490: man_parseln(curp->man,
491: curp->line, ln.buf, of) :
492: mdoc_parseln(curp->mdoc,
493: curp->line, ln.buf, of);
494:
495: if (0 == rc) {
496: assert(MANDOCLEVEL_FATAL <= curp->file_status);
497: break;
498: }
499:
500: /* Temporary buffers typically are not full. */
501:
502: if (0 == start && '\0' == blk.buf[i])
503: break;
504:
505: /* Start the next input line. */
506:
507: pos = 0;
508: }
509:
510: free(ln.buf);
511: }
512:
513: static void
514: pdesc(struct mparse *curp, const char *file, int fd)
515: {
516: struct buf blk;
517: int with_mmap;
518:
519: /*
520: * Run for each opened file; may be called more than once for
521: * each full parse sequence if the opened file is nested (i.e.,
522: * from `so'). Simply sucks in the whole file and moves into
523: * the parse phase for the file.
524: */
525:
526: if ( ! read_whole_file(file, fd, &blk, &with_mmap)) {
527: curp->file_status = MANDOCLEVEL_SYSERR;
528: return;
529: }
530:
531: /* Line number is per-file. */
532:
533: curp->line = 1;
534:
535: mparse_buf_r(curp, blk, 1);
536:
1.15 kristaps 537: #ifdef HAVE_MMAP
1.1 kristaps 538: if (with_mmap)
539: munmap(blk.buf, blk.sz);
540: else
1.15 kristaps 541: #endif
1.1 kristaps 542: free(blk.buf);
543: }
544:
545: static int
546: read_whole_file(const char *file, int fd, struct buf *fb, int *with_mmap)
547: {
548: size_t off;
549: ssize_t ssz;
550:
1.15 kristaps 551: #ifdef HAVE_MMAP
552: struct stat st;
1.1 kristaps 553: if (-1 == fstat(fd, &st)) {
554: perror(file);
555: return(0);
556: }
557:
558: /*
559: * If we're a regular file, try just reading in the whole entry
560: * via mmap(). This is faster than reading it into blocks, and
561: * since each file is only a few bytes to begin with, I'm not
562: * concerned that this is going to tank any machines.
563: */
564:
565: if (S_ISREG(st.st_mode)) {
566: if (st.st_size >= (1U << 31)) {
567: fprintf(stderr, "%s: input too large\n", file);
568: return(0);
569: }
570: *with_mmap = 1;
571: fb->sz = (size_t)st.st_size;
572: fb->buf = mmap(NULL, fb->sz, PROT_READ,
573: MAP_FILE|MAP_SHARED, fd, 0);
574: if (fb->buf != MAP_FAILED)
575: return(1);
576: }
1.15 kristaps 577: #endif
1.1 kristaps 578:
579: /*
580: * If this isn't a regular file (like, say, stdin), then we must
581: * go the old way and just read things in bit by bit.
582: */
583:
584: *with_mmap = 0;
585: off = 0;
586: fb->sz = 0;
587: fb->buf = NULL;
588: for (;;) {
589: if (off == fb->sz) {
590: if (fb->sz == (1U << 31)) {
591: fprintf(stderr, "%s: input too large\n", file);
592: break;
593: }
594: resize_buf(fb, 65536);
595: }
596: ssz = read(fd, fb->buf + (int)off, fb->sz - off);
597: if (ssz == 0) {
598: fb->sz = off;
599: return(1);
600: }
601: if (ssz == -1) {
602: perror(file);
603: break;
604: }
605: off += (size_t)ssz;
606: }
607:
608: free(fb->buf);
609: fb->buf = NULL;
610: return(0);
611: }
612:
613: static void
614: mparse_end(struct mparse *curp)
615: {
616:
617: if (MANDOCLEVEL_FATAL <= curp->file_status)
618: return;
619:
620: if (curp->mdoc && ! mdoc_endparse(curp->mdoc)) {
621: assert(MANDOCLEVEL_FATAL <= curp->file_status);
622: return;
623: }
624:
625: if (curp->man && ! man_endparse(curp->man)) {
626: assert(MANDOCLEVEL_FATAL <= curp->file_status);
627: return;
628: }
629:
630: if ( ! (curp->man || curp->mdoc)) {
1.6 kristaps 631: mandoc_msg(MANDOCERR_NOTMANUAL, curp, 1, 0, NULL);
1.1 kristaps 632: curp->file_status = MANDOCLEVEL_FATAL;
1.6 kristaps 633: return;
1.1 kristaps 634: }
635:
636: roff_endparse(curp->roff);
637: }
638:
639: static void
640: mparse_readfd_r(struct mparse *curp, int fd, const char *file, int re)
641: {
642: const char *svfile;
643:
644: if (-1 == fd)
645: if (-1 == (fd = open(file, O_RDONLY, 0))) {
646: perror(file);
647: curp->file_status = MANDOCLEVEL_SYSERR;
648: return;
649: }
650:
1.3 kristaps 651: svfile = curp->file;
652: curp->file = file;
1.1 kristaps 653:
654: pdesc(curp, file, fd);
655:
656: if (0 == re && MANDOCLEVEL_FATAL > curp->file_status)
657: mparse_end(curp);
658:
659: if (STDIN_FILENO != fd && -1 == close(fd))
660: perror(file);
661:
1.3 kristaps 662: curp->file = svfile;
1.1 kristaps 663: }
664:
665: enum mandoclevel
666: mparse_readfd(struct mparse *curp, int fd, const char *file)
667: {
668:
669: mparse_readfd_r(curp, fd, file, 0);
670: return(curp->file_status);
671: }
672:
673: struct mparse *
1.4 kristaps 674: mparse_alloc(enum mparset inttype, enum mandoclevel wlevel, mandocmsg mmsg, void *arg)
1.1 kristaps 675: {
676: struct mparse *curp;
1.10 kristaps 677:
678: assert(wlevel <= MANDOCLEVEL_FATAL);
1.1 kristaps 679:
680: curp = mandoc_calloc(1, sizeof(struct mparse));
681:
1.3 kristaps 682: curp->wlevel = wlevel;
1.1 kristaps 683: curp->mmsg = mmsg;
684: curp->arg = arg;
685: curp->inttype = inttype;
686:
1.3 kristaps 687: curp->roff = roff_alloc(&curp->regs, curp);
1.1 kristaps 688: return(curp);
689: }
690:
691: void
692: mparse_reset(struct mparse *curp)
693: {
694:
695: memset(&curp->regs, 0, sizeof(struct regset));
696:
697: roff_reset(curp->roff);
698:
699: if (curp->mdoc)
700: mdoc_reset(curp->mdoc);
701: if (curp->man)
702: man_reset(curp->man);
703:
704: curp->file_status = MANDOCLEVEL_OK;
705: curp->mdoc = NULL;
706: curp->man = NULL;
707: }
708:
709: void
710: mparse_free(struct mparse *curp)
711: {
712:
713: if (curp->pmdoc)
714: mdoc_free(curp->pmdoc);
715: if (curp->pman)
716: man_free(curp->pman);
717: if (curp->roff)
718: roff_free(curp->roff);
719:
720: free(curp);
721: }
722:
723: void
724: mparse_result(struct mparse *curp, struct mdoc **mdoc, struct man **man)
725: {
726:
1.9 kristaps 727: if (mdoc)
728: *mdoc = curp->mdoc;
729: if (man)
730: *man = curp->man;
1.3 kristaps 731: }
732:
733: void
734: mandoc_vmsg(enum mandocerr t, struct mparse *m,
735: int ln, int pos, const char *fmt, ...)
736: {
737: char buf[256];
738: va_list ap;
739:
740: va_start(ap, fmt);
741: vsnprintf(buf, sizeof(buf) - 1, fmt, ap);
742: va_end(ap);
743:
744: mandoc_msg(t, m, ln, pos, buf);
745: }
746:
747: void
748: mandoc_msg(enum mandocerr er, struct mparse *m,
749: int ln, int col, const char *msg)
750: {
751: enum mandoclevel level;
752:
753: level = MANDOCLEVEL_FATAL;
754: while (er < mandoclimits[level])
755: level--;
756:
757: if (level < m->wlevel)
758: return;
759:
1.8 kristaps 760: if (m->mmsg)
761: (*m->mmsg)(er, level, m->file, ln, col, msg);
1.3 kristaps 762:
763: if (m->file_status < level)
764: m->file_status = level;
1.7 kristaps 765: }
766:
767: const char *
768: mparse_strerror(enum mandocerr er)
769: {
770:
771: return(mandocerrs[er]);
772: }
773:
774: const char *
775: mparse_strlevel(enum mandoclevel lvl)
776: {
777: return(mandoclevels[lvl]);
1.1 kristaps 778: }
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