Annotation of mandoc/read.c, Revision 1.25
1.25 ! kristaps 1: /* $Id: read.c,v 1.24 2011/10/06 22:29:12 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;
1.24 kristaps 66: struct buf *secondary;
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",
1.17 kristaps 154:
155: /* related to equations */
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:
1.24 kristaps 415: /*
416: * Maintain a lookaside buffer of all parsed lines. We
417: * only do this if mparse_keep() has been invoked (the
418: * buffer may be accessed with mparse_getkeep()).
419: */
420:
421: if (curp->secondary) {
422: curp->secondary->buf =
423: mandoc_realloc
424: (curp->secondary->buf,
425: curp->secondary->sz + pos + 2);
426: memcpy(curp->secondary->buf +
427: curp->secondary->sz,
428: ln.buf, pos);
429: curp->secondary->sz += pos;
430: curp->secondary->buf
431: [curp->secondary->sz] = '\n';
432: curp->secondary->sz++;
433: curp->secondary->buf
434: [curp->secondary->sz] = '\0';
435: }
1.1 kristaps 436: rerun:
437: rr = roff_parseln
438: (curp->roff, curp->line,
439: &ln.buf, &ln.sz, of, &of);
440:
441: switch (rr) {
442: case (ROFF_REPARSE):
443: if (REPARSE_LIMIT >= ++curp->reparse_count)
444: mparse_buf_r(curp, ln, 0);
445: else
1.3 kristaps 446: mandoc_msg(MANDOCERR_ROFFLOOP, curp,
1.1 kristaps 447: curp->line, pos, NULL);
448: pos = 0;
449: continue;
450: case (ROFF_APPEND):
451: pos = (int)strlen(ln.buf);
452: continue;
453: case (ROFF_RERUN):
454: goto rerun;
455: case (ROFF_IGN):
456: pos = 0;
457: continue;
458: case (ROFF_ERR):
459: assert(MANDOCLEVEL_FATAL <= curp->file_status);
460: break;
461: case (ROFF_SO):
1.24 kristaps 462: /*
463: * We remove `so' clauses from our lookaside
464: * buffer because we're going to descend into
465: * the file recursively.
466: */
1.25 ! kristaps 467: if (curp->secondary)
! 468: curp->secondary->sz -= pos + 1;
1.1 kristaps 469: mparse_readfd_r(curp, -1, ln.buf + of, 1);
470: if (MANDOCLEVEL_FATAL <= curp->file_status)
471: break;
472: pos = 0;
473: continue;
474: default:
475: break;
476: }
477:
478: /*
479: * If we encounter errors in the recursive parse, make
480: * sure we don't continue parsing.
481: */
482:
483: if (MANDOCLEVEL_FATAL <= curp->file_status)
484: break;
485:
486: /*
487: * If input parsers have not been allocated, do so now.
1.14 kristaps 488: * We keep these instanced between parsers, but set them
1.1 kristaps 489: * locally per parse routine since we can use different
490: * parsers with each one.
491: */
492:
493: if ( ! (curp->man || curp->mdoc))
494: pset(ln.buf + of, pos - of, curp);
495:
496: /*
497: * Lastly, push down into the parsers themselves. One
498: * of these will have already been set in the pset()
499: * routine.
500: * If libroff returns ROFF_TBL, then add it to the
501: * currently open parse. Since we only get here if
502: * there does exist data (see tbl_data.c), we're
503: * guaranteed that something's been allocated.
504: * Do the same for ROFF_EQN.
505: */
506:
507: rc = -1;
508:
509: if (ROFF_TBL == rr)
510: while (NULL != (span = roff_span(curp->roff))) {
511: rc = curp->man ?
512: man_addspan(curp->man, span) :
513: mdoc_addspan(curp->mdoc, span);
514: if (0 == rc)
515: break;
516: }
517: else if (ROFF_EQN == rr)
518: rc = curp->mdoc ?
519: mdoc_addeqn(curp->mdoc,
520: roff_eqn(curp->roff)) :
521: man_addeqn(curp->man,
522: roff_eqn(curp->roff));
523: else if (curp->man || curp->mdoc)
524: rc = curp->man ?
525: man_parseln(curp->man,
526: curp->line, ln.buf, of) :
527: mdoc_parseln(curp->mdoc,
528: curp->line, ln.buf, of);
529:
530: if (0 == rc) {
531: assert(MANDOCLEVEL_FATAL <= curp->file_status);
532: break;
533: }
534:
535: /* Temporary buffers typically are not full. */
536:
537: if (0 == start && '\0' == blk.buf[i])
538: break;
539:
540: /* Start the next input line. */
541:
542: pos = 0;
543: }
544:
545: free(ln.buf);
546: }
547:
548: static void
549: pdesc(struct mparse *curp, const char *file, int fd)
550: {
551: struct buf blk;
552: int with_mmap;
553:
554: /*
555: * Run for each opened file; may be called more than once for
556: * each full parse sequence if the opened file is nested (i.e.,
557: * from `so'). Simply sucks in the whole file and moves into
558: * the parse phase for the file.
559: */
560:
561: if ( ! read_whole_file(file, fd, &blk, &with_mmap)) {
562: curp->file_status = MANDOCLEVEL_SYSERR;
563: return;
564: }
565:
566: /* Line number is per-file. */
567:
568: curp->line = 1;
569:
570: mparse_buf_r(curp, blk, 1);
571:
1.15 kristaps 572: #ifdef HAVE_MMAP
1.1 kristaps 573: if (with_mmap)
574: munmap(blk.buf, blk.sz);
575: else
1.15 kristaps 576: #endif
1.1 kristaps 577: free(blk.buf);
578: }
579:
580: static int
581: read_whole_file(const char *file, int fd, struct buf *fb, int *with_mmap)
582: {
583: size_t off;
584: ssize_t ssz;
585:
1.15 kristaps 586: #ifdef HAVE_MMAP
587: struct stat st;
1.1 kristaps 588: if (-1 == fstat(fd, &st)) {
589: perror(file);
590: return(0);
591: }
592:
593: /*
594: * If we're a regular file, try just reading in the whole entry
595: * via mmap(). This is faster than reading it into blocks, and
596: * since each file is only a few bytes to begin with, I'm not
597: * concerned that this is going to tank any machines.
598: */
599:
600: if (S_ISREG(st.st_mode)) {
601: if (st.st_size >= (1U << 31)) {
602: fprintf(stderr, "%s: input too large\n", file);
603: return(0);
604: }
605: *with_mmap = 1;
606: fb->sz = (size_t)st.st_size;
607: fb->buf = mmap(NULL, fb->sz, PROT_READ,
608: MAP_FILE|MAP_SHARED, fd, 0);
609: if (fb->buf != MAP_FAILED)
610: return(1);
611: }
1.15 kristaps 612: #endif
1.1 kristaps 613:
614: /*
615: * If this isn't a regular file (like, say, stdin), then we must
616: * go the old way and just read things in bit by bit.
617: */
618:
619: *with_mmap = 0;
620: off = 0;
621: fb->sz = 0;
622: fb->buf = NULL;
623: for (;;) {
624: if (off == fb->sz) {
625: if (fb->sz == (1U << 31)) {
626: fprintf(stderr, "%s: input too large\n", file);
627: break;
628: }
629: resize_buf(fb, 65536);
630: }
631: ssz = read(fd, fb->buf + (int)off, fb->sz - off);
632: if (ssz == 0) {
633: fb->sz = off;
634: return(1);
635: }
636: if (ssz == -1) {
637: perror(file);
638: break;
639: }
640: off += (size_t)ssz;
641: }
642:
643: free(fb->buf);
644: fb->buf = NULL;
645: return(0);
646: }
647:
648: static void
649: mparse_end(struct mparse *curp)
650: {
651:
652: if (MANDOCLEVEL_FATAL <= curp->file_status)
653: return;
654:
655: if (curp->mdoc && ! mdoc_endparse(curp->mdoc)) {
656: assert(MANDOCLEVEL_FATAL <= curp->file_status);
657: return;
658: }
659:
660: if (curp->man && ! man_endparse(curp->man)) {
661: assert(MANDOCLEVEL_FATAL <= curp->file_status);
662: return;
663: }
664:
665: if ( ! (curp->man || curp->mdoc)) {
1.6 kristaps 666: mandoc_msg(MANDOCERR_NOTMANUAL, curp, 1, 0, NULL);
1.1 kristaps 667: curp->file_status = MANDOCLEVEL_FATAL;
1.6 kristaps 668: return;
1.1 kristaps 669: }
670:
671: roff_endparse(curp->roff);
672: }
673:
674: static void
675: mparse_readfd_r(struct mparse *curp, int fd, const char *file, int re)
676: {
677: const char *svfile;
678:
679: if (-1 == fd)
680: if (-1 == (fd = open(file, O_RDONLY, 0))) {
681: perror(file);
682: curp->file_status = MANDOCLEVEL_SYSERR;
683: return;
684: }
685:
1.3 kristaps 686: svfile = curp->file;
687: curp->file = file;
1.1 kristaps 688:
689: pdesc(curp, file, fd);
690:
691: if (0 == re && MANDOCLEVEL_FATAL > curp->file_status)
692: mparse_end(curp);
693:
694: if (STDIN_FILENO != fd && -1 == close(fd))
695: perror(file);
696:
1.3 kristaps 697: curp->file = svfile;
1.1 kristaps 698: }
699:
700: enum mandoclevel
701: mparse_readfd(struct mparse *curp, int fd, const char *file)
702: {
703:
704: mparse_readfd_r(curp, fd, file, 0);
705: return(curp->file_status);
706: }
707:
708: struct mparse *
1.4 kristaps 709: mparse_alloc(enum mparset inttype, enum mandoclevel wlevel, mandocmsg mmsg, void *arg)
1.1 kristaps 710: {
711: struct mparse *curp;
1.10 kristaps 712:
713: assert(wlevel <= MANDOCLEVEL_FATAL);
1.1 kristaps 714:
715: curp = mandoc_calloc(1, sizeof(struct mparse));
716:
1.3 kristaps 717: curp->wlevel = wlevel;
1.1 kristaps 718: curp->mmsg = mmsg;
719: curp->arg = arg;
720: curp->inttype = inttype;
721:
1.18 kristaps 722: curp->roff = roff_alloc(curp);
1.1 kristaps 723: return(curp);
724: }
725:
726: void
727: mparse_reset(struct mparse *curp)
728: {
729:
730: roff_reset(curp->roff);
731:
732: if (curp->mdoc)
733: mdoc_reset(curp->mdoc);
734: if (curp->man)
735: man_reset(curp->man);
1.24 kristaps 736: if (curp->secondary)
737: curp->secondary->sz = 0;
1.1 kristaps 738:
739: curp->file_status = MANDOCLEVEL_OK;
740: curp->mdoc = NULL;
741: curp->man = NULL;
742: }
743:
744: void
745: mparse_free(struct mparse *curp)
746: {
747:
748: if (curp->pmdoc)
749: mdoc_free(curp->pmdoc);
750: if (curp->pman)
751: man_free(curp->pman);
752: if (curp->roff)
753: roff_free(curp->roff);
1.24 kristaps 754: if (curp->secondary)
755: free(curp->secondary->buf);
1.1 kristaps 756:
1.24 kristaps 757: free(curp->secondary);
1.1 kristaps 758: free(curp);
759: }
760:
761: void
762: mparse_result(struct mparse *curp, struct mdoc **mdoc, struct man **man)
763: {
764:
1.9 kristaps 765: if (mdoc)
766: *mdoc = curp->mdoc;
767: if (man)
768: *man = curp->man;
1.3 kristaps 769: }
770:
771: void
772: mandoc_vmsg(enum mandocerr t, struct mparse *m,
773: int ln, int pos, const char *fmt, ...)
774: {
775: char buf[256];
776: va_list ap;
777:
778: va_start(ap, fmt);
779: vsnprintf(buf, sizeof(buf) - 1, fmt, ap);
780: va_end(ap);
781:
782: mandoc_msg(t, m, ln, pos, buf);
783: }
784:
785: void
786: mandoc_msg(enum mandocerr er, struct mparse *m,
787: int ln, int col, const char *msg)
788: {
789: enum mandoclevel level;
790:
791: level = MANDOCLEVEL_FATAL;
792: while (er < mandoclimits[level])
793: level--;
794:
795: if (level < m->wlevel)
796: return;
797:
1.8 kristaps 798: if (m->mmsg)
799: (*m->mmsg)(er, level, m->file, ln, col, msg);
1.3 kristaps 800:
801: if (m->file_status < level)
802: m->file_status = level;
1.7 kristaps 803: }
804:
805: const char *
806: mparse_strerror(enum mandocerr er)
807: {
808:
809: return(mandocerrs[er]);
810: }
811:
812: const char *
813: mparse_strlevel(enum mandoclevel lvl)
814: {
815: return(mandoclevels[lvl]);
1.24 kristaps 816: }
817:
818: void
819: mparse_keep(struct mparse *p)
820: {
821:
822: assert(NULL == p->secondary);
823: p->secondary = mandoc_calloc(1, sizeof(struct buf));
824: }
825:
826: const char *
827: mparse_getkeep(const struct mparse *p)
828: {
829:
830: assert(p->secondary);
831: return(p->secondary->sz ? p->secondary->buf : NULL);
1.1 kristaps 832: }
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