![[BACK]](/icons/back.gif){kind=icon}
Return to read.c CVS log ![[TXT]](/icons/text.gif){kind=icon}
![[DIR]](/icons/dir.gif){kind=icon}
Up to [local] / src / usr.bin / mandoc|
Return to read.c CVS log | Up to [local] / src / usr.bin / mandoc |
1.10 ! schwarze 1: /* $Id: read.c,v 1.9 2012/07/12 15:09:50 schwarze Exp $ */
1.1 schwarze 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: */
18: #include <sys/stat.h>
19: #include <sys/mman.h>
20:
21: #include <assert.h>
22: #include <ctype.h>
23: #include <fcntl.h>
24: #include <stdarg.h>
25: #include <stdio.h>
26: #include <stdlib.h>
27: #include <string.h>
28: #include <unistd.h>
29:
30: #include "mandoc.h"
31: #include "libmandoc.h"
32: #include "mdoc.h"
33: #include "man.h"
34:
35: #define REPARSE_LIMIT 1000
36:
37: struct buf {
38: char *buf; /* binary input buffer */
39: size_t sz; /* size of binary buffer */
40: };
41:
42: struct mparse {
43: enum mandoclevel file_status; /* status of current parse */
44: enum mandoclevel wlevel; /* ignore messages below this */
45: int line; /* line number in the file */
46: enum mparset inttype; /* which parser to use */
47: struct man *pman; /* persistent man parser */
48: struct mdoc *pmdoc; /* persistent mdoc parser */
49: struct man *man; /* man parser */
50: struct mdoc *mdoc; /* mdoc parser */
51: struct roff *roff; /* roff parser (!NULL) */
52: int reparse_count; /* finite interp. stack */
53: mandocmsg mmsg; /* warning/error message handler */
54: void *arg; /* argument to mmsg */
55: const char *file;
1.4 schwarze 56: struct buf *secondary;
1.7 schwarze 57: char *defos; /* default operating system */
1.1 schwarze 58: };
59:
60: static void resize_buf(struct buf *, size_t);
61: static void mparse_buf_r(struct mparse *, struct buf, int);
62: static void mparse_readfd_r(struct mparse *, int, const char *, int);
63: static void pset(const char *, int, struct mparse *);
64: static void pdesc(struct mparse *, const char *, int);
65: static int read_whole_file(const char *, int, struct buf *, int *);
66: static void mparse_end(struct mparse *);
67:
68: static const enum mandocerr mandoclimits[MANDOCLEVEL_MAX] = {
69: MANDOCERR_OK,
70: MANDOCERR_WARNING,
71: MANDOCERR_WARNING,
72: MANDOCERR_ERROR,
73: MANDOCERR_FATAL,
74: MANDOCERR_MAX,
75: MANDOCERR_MAX
76: };
77:
78: static const char * const mandocerrs[MANDOCERR_MAX] = {
79: "ok",
80:
81: "generic warning",
82:
83: /* related to the prologue */
84: "no title in document",
85: "document title should be all caps",
86: "unknown manual section",
87: "date missing, using today's date",
88: "cannot parse date, using it verbatim",
89: "prologue macros out of order",
90: "duplicate prologue macro",
91: "macro not allowed in prologue",
92: "macro not allowed in body",
93:
94: /* related to document structure */
95: ".so is fragile, better use ln(1)",
96: "NAME section must come first",
97: "bad NAME section contents",
98: "sections out of conventional order",
99: "duplicate section name",
100: "section not in conventional manual section",
101:
102: /* related to macros and nesting */
103: "skipping obsolete macro",
104: "skipping paragraph macro",
1.10 ! schwarze 105: "moving paragraph macro out of list",
1.1 schwarze 106: "skipping no-space macro",
107: "blocks badly nested",
108: "child violates parent syntax",
109: "nested displays are not portable",
110: "already in literal mode",
111: "line scope broken",
112:
113: /* related to missing macro arguments */
114: "skipping empty macro",
115: "argument count wrong",
116: "missing display type",
117: "list type must come first",
118: "tag lists require a width argument",
119: "missing font type",
120: "skipping end of block that is not open",
121:
122: /* related to bad macro arguments */
123: "skipping argument",
124: "duplicate argument",
125: "duplicate display type",
126: "duplicate list type",
127: "unknown AT&T UNIX version",
128: "bad Boolean value",
129: "unknown font",
130: "unknown standard specifier",
131: "bad width argument",
132:
133: /* related to plain text */
134: "blank line in non-literal context",
135: "tab in non-literal context",
136: "end of line whitespace",
137: "bad comment style",
1.2 schwarze 138: "bad escape sequence",
1.1 schwarze 139: "unterminated quoted string",
1.3 schwarze 140:
141: /* related to equations */
142: "unexpected literal in equation",
1.1 schwarze 143:
144: "generic error",
145:
1.3 schwarze 146: /* related to equations */
147: "unexpected equation scope closure",
148: "equation scope open on exit",
149: "overlapping equation scopes",
150: "unexpected end of equation",
151: "equation syntax error",
152:
1.1 schwarze 153: /* related to tables */
154: "bad table syntax",
155: "bad table option",
156: "bad table layout",
157: "no table layout cells specified",
158: "no table data cells specified",
159: "ignore data in cell",
160: "data block still open",
161: "ignoring extra data cells",
162:
163: "input stack limit exceeded, infinite loop?",
164: "skipping bad character",
165: "escaped character not allowed in a name",
1.9 schwarze 166: "manual name not yet set",
1.1 schwarze 167: "skipping text before the first section header",
168: "skipping unknown macro",
169: "NOT IMPLEMENTED, please use groff: skipping request",
170: "argument count wrong",
171: "skipping end of block that is not open",
172: "missing end of block",
173: "scope open on exit",
174: "uname(3) system call failed",
175: "macro requires line argument(s)",
176: "macro requires body argument(s)",
177: "macro requires argument(s)",
178: "missing list type",
179: "line argument(s) will be lost",
180: "body argument(s) will be lost",
181:
182: "generic fatal error",
183:
184: "not a manual",
185: "column syntax is inconsistent",
186: "NOT IMPLEMENTED: .Bd -file",
187: "argument count wrong, violates syntax",
188: "child violates parent syntax",
189: "argument count wrong, violates syntax",
190: "NOT IMPLEMENTED: .so with absolute path or \"..\"",
191: "no document body",
192: "no document prologue",
193: "static buffer exhausted",
194: };
195:
196: static const char * const mandoclevels[MANDOCLEVEL_MAX] = {
197: "SUCCESS",
198: "RESERVED",
199: "WARNING",
200: "ERROR",
201: "FATAL",
202: "BADARG",
203: "SYSERR"
204: };
205:
206: static void
207: resize_buf(struct buf *buf, size_t initial)
208: {
209:
210: buf->sz = buf->sz > initial/2 ? 2 * buf->sz : initial;
211: buf->buf = mandoc_realloc(buf->buf, buf->sz);
212: }
213:
214: static void
215: pset(const char *buf, int pos, struct mparse *curp)
216: {
217: int i;
218:
219: /*
220: * Try to intuit which kind of manual parser should be used. If
221: * passed in by command-line (-man, -mdoc), then use that
222: * explicitly. If passed as -mandoc, then try to guess from the
223: * line: either skip dot-lines, use -mdoc when finding `.Dt', or
224: * default to -man, which is more lenient.
225: *
226: * Separate out pmdoc/pman from mdoc/man: the first persists
227: * through all parsers, while the latter is used per-parse.
228: */
229:
230: if ('.' == buf[0] || '\'' == buf[0]) {
231: for (i = 1; buf[i]; i++)
232: if (' ' != buf[i] && '\t' != buf[i])
233: break;
234: if ('\0' == buf[i])
235: return;
236: }
237:
238: switch (curp->inttype) {
239: case (MPARSE_MDOC):
240: if (NULL == curp->pmdoc)
1.7 schwarze 241: curp->pmdoc = mdoc_alloc(curp->roff, curp,
242: curp->defos);
1.1 schwarze 243: assert(curp->pmdoc);
244: curp->mdoc = curp->pmdoc;
245: return;
246: case (MPARSE_MAN):
247: if (NULL == curp->pman)
1.3 schwarze 248: curp->pman = man_alloc(curp->roff, curp);
1.1 schwarze 249: assert(curp->pman);
250: curp->man = curp->pman;
251: return;
252: default:
253: break;
254: }
255:
256: if (pos >= 3 && 0 == memcmp(buf, ".Dd", 3)) {
257: if (NULL == curp->pmdoc)
1.7 schwarze 258: curp->pmdoc = mdoc_alloc(curp->roff, curp,
259: curp->defos);
1.1 schwarze 260: assert(curp->pmdoc);
261: curp->mdoc = curp->pmdoc;
262: return;
263: }
264:
265: if (NULL == curp->pman)
1.3 schwarze 266: curp->pman = man_alloc(curp->roff, curp);
1.1 schwarze 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,
1.6 schwarze 322: * I'll be helpful and replace these characters
323: * with "?", so we don't display gibberish.
324: * Note to manual writers: use special characters.
1.1 schwarze 325: */
326:
327: c = (unsigned char) blk.buf[i];
328:
329: if ( ! (isascii(c) &&
330: (isgraph(c) || isblank(c)))) {
331: mandoc_msg(MANDOCERR_BADCHAR, curp,
1.6 schwarze 332: curp->line, pos, NULL);
1.1 schwarze 333: i++;
1.6 schwarze 334: if (pos >= (int)ln.sz)
335: resize_buf(&ln, 256);
336: ln.buf[pos++] = '?';
1.1 schwarze 337: continue;
338: }
339:
340: /* Trailing backslash = a plain char. */
341:
342: if ('\\' != blk.buf[i] || i + 1 == (int)blk.sz) {
343: if (pos >= (int)ln.sz)
344: resize_buf(&ln, 256);
345: ln.buf[pos++] = blk.buf[i++];
346: continue;
347: }
348:
349: /*
350: * Found escape and at least one other character.
351: * When it's a newline character, skip it.
352: * When there is a carriage return in between,
353: * skip that one as well.
354: */
355:
356: if ('\r' == blk.buf[i + 1] && i + 2 < (int)blk.sz &&
357: '\n' == blk.buf[i + 2])
358: ++i;
359: if ('\n' == blk.buf[i + 1]) {
360: i += 2;
361: ++lnn;
362: continue;
363: }
364:
365: if ('"' == blk.buf[i + 1] || '#' == blk.buf[i + 1]) {
366: i += 2;
367: /* Comment, skip to end of line */
368: for (; i < (int)blk.sz; ++i) {
369: if ('\n' == blk.buf[i]) {
370: ++i;
371: ++lnn;
372: break;
373: }
374: }
375:
376: /* Backout trailing whitespaces */
377: for (; pos > 0; --pos) {
378: if (ln.buf[pos - 1] != ' ')
379: break;
380: if (pos > 2 && ln.buf[pos - 2] == '\\')
381: break;
382: }
383: break;
384: }
385:
386: /* Some other escape sequence, copy & cont. */
387:
388: if (pos + 1 >= (int)ln.sz)
389: resize_buf(&ln, 256);
390:
391: ln.buf[pos++] = blk.buf[i++];
392: ln.buf[pos++] = blk.buf[i++];
393: }
394:
395: if (pos >= (int)ln.sz)
396: resize_buf(&ln, 256);
397:
398: ln.buf[pos] = '\0';
399:
400: /*
401: * A significant amount of complexity is contained by
402: * the roff preprocessor. It's line-oriented but can be
403: * expressed on one line, so we need at times to
404: * readjust our starting point and re-run it. The roff
405: * preprocessor can also readjust the buffers with new
406: * data, so we pass them in wholesale.
407: */
408:
409: of = 0;
410:
1.4 schwarze 411: /*
412: * Maintain a lookaside buffer of all parsed lines. We
413: * only do this if mparse_keep() has been invoked (the
414: * buffer may be accessed with mparse_getkeep()).
415: */
416:
417: if (curp->secondary) {
418: curp->secondary->buf =
419: mandoc_realloc
420: (curp->secondary->buf,
421: curp->secondary->sz + pos + 2);
422: memcpy(curp->secondary->buf +
423: curp->secondary->sz,
424: ln.buf, pos);
425: curp->secondary->sz += pos;
426: curp->secondary->buf
427: [curp->secondary->sz] = '\n';
428: curp->secondary->sz++;
429: curp->secondary->buf
430: [curp->secondary->sz] = '\0';
431: }
1.1 schwarze 432: rerun:
433: rr = roff_parseln
434: (curp->roff, curp->line,
435: &ln.buf, &ln.sz, of, &of);
436:
437: switch (rr) {
438: case (ROFF_REPARSE):
439: if (REPARSE_LIMIT >= ++curp->reparse_count)
440: mparse_buf_r(curp, ln, 0);
441: else
442: mandoc_msg(MANDOCERR_ROFFLOOP, curp,
443: curp->line, pos, NULL);
444: pos = 0;
445: continue;
446: case (ROFF_APPEND):
447: pos = (int)strlen(ln.buf);
448: continue;
449: case (ROFF_RERUN):
450: goto rerun;
451: case (ROFF_IGN):
452: pos = 0;
453: continue;
454: case (ROFF_ERR):
455: assert(MANDOCLEVEL_FATAL <= curp->file_status);
456: break;
457: case (ROFF_SO):
1.4 schwarze 458: /*
459: * We remove `so' clauses from our lookaside
460: * buffer because we're going to descend into
461: * the file recursively.
462: */
463: if (curp->secondary)
464: curp->secondary->sz -= pos + 1;
1.1 schwarze 465: mparse_readfd_r(curp, -1, ln.buf + of, 1);
466: if (MANDOCLEVEL_FATAL <= curp->file_status)
467: break;
468: pos = 0;
469: continue;
470: default:
471: break;
472: }
473:
474: /*
475: * If we encounter errors in the recursive parse, make
476: * sure we don't continue parsing.
477: */
478:
479: if (MANDOCLEVEL_FATAL <= curp->file_status)
480: break;
481:
482: /*
483: * If input parsers have not been allocated, do so now.
1.2 schwarze 484: * We keep these instanced between parsers, but set them
1.1 schwarze 485: * locally per parse routine since we can use different
486: * parsers with each one.
487: */
488:
489: if ( ! (curp->man || curp->mdoc))
490: pset(ln.buf + of, pos - of, curp);
491:
492: /*
493: * Lastly, push down into the parsers themselves. One
494: * of these will have already been set in the pset()
495: * routine.
496: * If libroff returns ROFF_TBL, then add it to the
497: * currently open parse. Since we only get here if
498: * there does exist data (see tbl_data.c), we're
499: * guaranteed that something's been allocated.
500: * Do the same for ROFF_EQN.
501: */
502:
503: rc = -1;
504:
505: if (ROFF_TBL == rr)
506: while (NULL != (span = roff_span(curp->roff))) {
507: rc = curp->man ?
508: man_addspan(curp->man, span) :
509: mdoc_addspan(curp->mdoc, span);
510: if (0 == rc)
511: break;
512: }
513: else if (ROFF_EQN == rr)
514: rc = curp->mdoc ?
515: mdoc_addeqn(curp->mdoc,
516: roff_eqn(curp->roff)) :
517: man_addeqn(curp->man,
518: roff_eqn(curp->roff));
519: else if (curp->man || curp->mdoc)
520: rc = curp->man ?
521: man_parseln(curp->man,
522: curp->line, ln.buf, of) :
523: mdoc_parseln(curp->mdoc,
524: curp->line, ln.buf, of);
525:
526: if (0 == rc) {
527: assert(MANDOCLEVEL_FATAL <= curp->file_status);
528: break;
529: }
530:
531: /* Temporary buffers typically are not full. */
532:
533: if (0 == start && '\0' == blk.buf[i])
534: break;
535:
536: /* Start the next input line. */
537:
538: pos = 0;
539: }
540:
541: free(ln.buf);
542: }
543:
544: static void
545: pdesc(struct mparse *curp, const char *file, int fd)
546: {
547: struct buf blk;
548: int with_mmap;
549:
550: /*
551: * Run for each opened file; may be called more than once for
552: * each full parse sequence if the opened file is nested (i.e.,
553: * from `so'). Simply sucks in the whole file and moves into
554: * the parse phase for the file.
555: */
556:
557: if ( ! read_whole_file(file, fd, &blk, &with_mmap)) {
558: curp->file_status = MANDOCLEVEL_SYSERR;
559: return;
560: }
561:
562: /* Line number is per-file. */
563:
564: curp->line = 1;
565:
566: mparse_buf_r(curp, blk, 1);
567:
568: if (with_mmap)
569: munmap(blk.buf, blk.sz);
570: else
571: free(blk.buf);
572: }
573:
574: static int
575: read_whole_file(const char *file, int fd, struct buf *fb, int *with_mmap)
576: {
577: struct stat st;
578: size_t off;
579: ssize_t ssz;
580:
581: if (-1 == fstat(fd, &st)) {
582: perror(file);
583: return(0);
584: }
585:
586: /*
587: * If we're a regular file, try just reading in the whole entry
588: * via mmap(). This is faster than reading it into blocks, and
589: * since each file is only a few bytes to begin with, I'm not
590: * concerned that this is going to tank any machines.
591: */
592:
593: if (S_ISREG(st.st_mode)) {
594: if (st.st_size >= (1U << 31)) {
595: fprintf(stderr, "%s: input too large\n", file);
596: return(0);
597: }
598: *with_mmap = 1;
599: fb->sz = (size_t)st.st_size;
600: fb->buf = mmap(NULL, fb->sz, PROT_READ,
601: MAP_FILE|MAP_SHARED, fd, 0);
602: if (fb->buf != MAP_FAILED)
603: return(1);
604: }
605:
606: /*
607: * If this isn't a regular file (like, say, stdin), then we must
608: * go the old way and just read things in bit by bit.
609: */
610:
611: *with_mmap = 0;
612: off = 0;
613: fb->sz = 0;
614: fb->buf = NULL;
615: for (;;) {
616: if (off == fb->sz) {
617: if (fb->sz == (1U << 31)) {
618: fprintf(stderr, "%s: input too large\n", file);
619: break;
620: }
621: resize_buf(fb, 65536);
622: }
623: ssz = read(fd, fb->buf + (int)off, fb->sz - off);
624: if (ssz == 0) {
625: fb->sz = off;
626: return(1);
627: }
628: if (ssz == -1) {
629: perror(file);
630: break;
631: }
632: off += (size_t)ssz;
633: }
634:
635: free(fb->buf);
636: fb->buf = NULL;
637: return(0);
638: }
639:
640: static void
641: mparse_end(struct mparse *curp)
642: {
643:
644: if (MANDOCLEVEL_FATAL <= curp->file_status)
645: return;
646:
647: if (curp->mdoc && ! mdoc_endparse(curp->mdoc)) {
648: assert(MANDOCLEVEL_FATAL <= curp->file_status);
649: return;
650: }
651:
652: if (curp->man && ! man_endparse(curp->man)) {
653: assert(MANDOCLEVEL_FATAL <= curp->file_status);
654: return;
655: }
656:
657: if ( ! (curp->man || curp->mdoc)) {
658: mandoc_msg(MANDOCERR_NOTMANUAL, curp, 1, 0, NULL);
659: curp->file_status = MANDOCLEVEL_FATAL;
660: return;
661: }
662:
663: roff_endparse(curp->roff);
664: }
665:
666: static void
667: mparse_readfd_r(struct mparse *curp, int fd, const char *file, int re)
668: {
669: const char *svfile;
670:
671: if (-1 == fd)
672: if (-1 == (fd = open(file, O_RDONLY, 0))) {
673: perror(file);
674: curp->file_status = MANDOCLEVEL_SYSERR;
675: return;
676: }
677:
678: svfile = curp->file;
679: curp->file = file;
680:
681: pdesc(curp, file, fd);
682:
683: if (0 == re && MANDOCLEVEL_FATAL > curp->file_status)
684: mparse_end(curp);
685:
686: if (STDIN_FILENO != fd && -1 == close(fd))
687: perror(file);
688:
689: curp->file = svfile;
690: }
691:
692: enum mandoclevel
693: mparse_readfd(struct mparse *curp, int fd, const char *file)
694: {
695:
696: mparse_readfd_r(curp, fd, file, 0);
697: return(curp->file_status);
698: }
699:
700: struct mparse *
1.7 schwarze 701: mparse_alloc(enum mparset inttype, enum mandoclevel wlevel,
702: mandocmsg mmsg, void *arg, char *defos)
1.1 schwarze 703: {
704: struct mparse *curp;
705:
706: assert(wlevel <= MANDOCLEVEL_FATAL);
707:
708: curp = mandoc_calloc(1, sizeof(struct mparse));
709:
710: curp->wlevel = wlevel;
711: curp->mmsg = mmsg;
712: curp->arg = arg;
713: curp->inttype = inttype;
1.7 schwarze 714: curp->defos = defos;
1.1 schwarze 715:
1.8 schwarze 716: curp->roff = roff_alloc(inttype, curp);
1.1 schwarze 717: return(curp);
718: }
719:
720: void
721: mparse_reset(struct mparse *curp)
722: {
723:
724: roff_reset(curp->roff);
725:
726: if (curp->mdoc)
727: mdoc_reset(curp->mdoc);
728: if (curp->man)
729: man_reset(curp->man);
1.4 schwarze 730: if (curp->secondary)
731: curp->secondary->sz = 0;
1.1 schwarze 732:
733: curp->file_status = MANDOCLEVEL_OK;
734: curp->mdoc = NULL;
735: curp->man = NULL;
736: }
737:
738: void
739: mparse_free(struct mparse *curp)
740: {
741:
742: if (curp->pmdoc)
743: mdoc_free(curp->pmdoc);
744: if (curp->pman)
745: man_free(curp->pman);
746: if (curp->roff)
747: roff_free(curp->roff);
1.4 schwarze 748: if (curp->secondary)
749: free(curp->secondary->buf);
1.1 schwarze 750:
1.4 schwarze 751: free(curp->secondary);
1.1 schwarze 752: free(curp);
753: }
754:
755: void
756: mparse_result(struct mparse *curp, struct mdoc **mdoc, struct man **man)
757: {
758:
759: if (mdoc)
760: *mdoc = curp->mdoc;
761: if (man)
762: *man = curp->man;
763: }
764:
765: void
766: mandoc_vmsg(enum mandocerr t, struct mparse *m,
767: int ln, int pos, const char *fmt, ...)
768: {
769: char buf[256];
770: va_list ap;
771:
772: va_start(ap, fmt);
773: vsnprintf(buf, sizeof(buf) - 1, fmt, ap);
774: va_end(ap);
775:
776: mandoc_msg(t, m, ln, pos, buf);
777: }
778:
779: void
780: mandoc_msg(enum mandocerr er, struct mparse *m,
781: int ln, int col, const char *msg)
782: {
783: enum mandoclevel level;
784:
785: level = MANDOCLEVEL_FATAL;
786: while (er < mandoclimits[level])
787: level--;
788:
789: if (level < m->wlevel)
790: return;
791:
792: if (m->mmsg)
793: (*m->mmsg)(er, level, m->file, ln, col, msg);
794:
795: if (m->file_status < level)
796: m->file_status = level;
797: }
798:
799: const char *
800: mparse_strerror(enum mandocerr er)
801: {
802:
803: return(mandocerrs[er]);
804: }
805:
806: const char *
807: mparse_strlevel(enum mandoclevel lvl)
808: {
809: return(mandoclevels[lvl]);
1.4 schwarze 810: }
811:
812: void
813: mparse_keep(struct mparse *p)
814: {
815:
816: assert(NULL == p->secondary);
817: p->secondary = mandoc_calloc(1, sizeof(struct buf));
818: }
819:
820: const char *
821: mparse_getkeep(const struct mparse *p)
822: {
823:
824: assert(p->secondary);
825: return(p->secondary->sz ? p->secondary->buf : NULL);
1.1 schwarze 826: }