Annotation of mandoc/read.c, Revision 1.27
1.27 ! joerg 1: /* $Id: read.c,v 1.26 2011/11/07 01:24:40 schwarze 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: "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,
1.27 ! joerg 328: * I'll be helpful and replace these characters
! 329: * with "?", so we don't display gibberish.
! 330: * Note to manual writers: use special characters.
1.1 kristaps 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,
1.27 ! joerg 338: curp->line, pos, NULL);
1.1 kristaps 339: i++;
1.27 ! joerg 340: if (pos >= (int)ln.sz)
! 341: resize_buf(&ln, 256);
! 342: ln.buf[pos++] = '?';
1.1 kristaps 343: continue;
344: }
345:
346: /* Trailing backslash = a plain char. */
347:
348: if ('\\' != blk.buf[i] || i + 1 == (int)blk.sz) {
349: if (pos >= (int)ln.sz)
350: resize_buf(&ln, 256);
351: ln.buf[pos++] = blk.buf[i++];
352: continue;
353: }
354:
355: /*
356: * Found escape and at least one other character.
357: * When it's a newline character, skip it.
358: * When there is a carriage return in between,
359: * skip that one as well.
360: */
361:
362: if ('\r' == blk.buf[i + 1] && i + 2 < (int)blk.sz &&
363: '\n' == blk.buf[i + 2])
364: ++i;
365: if ('\n' == blk.buf[i + 1]) {
366: i += 2;
367: ++lnn;
368: continue;
369: }
370:
1.13 kristaps 371: if ('"' == blk.buf[i + 1] || '#' == blk.buf[i + 1]) {
1.1 kristaps 372: i += 2;
373: /* Comment, skip to end of line */
374: for (; i < (int)blk.sz; ++i) {
375: if ('\n' == blk.buf[i]) {
376: ++i;
377: ++lnn;
378: break;
379: }
380: }
381:
382: /* Backout trailing whitespaces */
383: for (; pos > 0; --pos) {
384: if (ln.buf[pos - 1] != ' ')
385: break;
386: if (pos > 2 && ln.buf[pos - 2] == '\\')
387: break;
388: }
389: break;
390: }
391:
392: /* Some other escape sequence, copy & cont. */
393:
394: if (pos + 1 >= (int)ln.sz)
395: resize_buf(&ln, 256);
396:
397: ln.buf[pos++] = blk.buf[i++];
398: ln.buf[pos++] = blk.buf[i++];
399: }
400:
401: if (pos >= (int)ln.sz)
402: resize_buf(&ln, 256);
403:
404: ln.buf[pos] = '\0';
405:
406: /*
407: * A significant amount of complexity is contained by
408: * the roff preprocessor. It's line-oriented but can be
409: * expressed on one line, so we need at times to
410: * readjust our starting point and re-run it. The roff
411: * preprocessor can also readjust the buffers with new
412: * data, so we pass them in wholesale.
413: */
414:
415: of = 0;
416:
1.24 kristaps 417: /*
418: * Maintain a lookaside buffer of all parsed lines. We
419: * only do this if mparse_keep() has been invoked (the
420: * buffer may be accessed with mparse_getkeep()).
421: */
422:
423: if (curp->secondary) {
424: curp->secondary->buf =
425: mandoc_realloc
426: (curp->secondary->buf,
427: curp->secondary->sz + pos + 2);
428: memcpy(curp->secondary->buf +
429: curp->secondary->sz,
430: ln.buf, pos);
431: curp->secondary->sz += pos;
432: curp->secondary->buf
433: [curp->secondary->sz] = '\n';
434: curp->secondary->sz++;
435: curp->secondary->buf
436: [curp->secondary->sz] = '\0';
437: }
1.1 kristaps 438: rerun:
439: rr = roff_parseln
440: (curp->roff, curp->line,
441: &ln.buf, &ln.sz, of, &of);
442:
443: switch (rr) {
444: case (ROFF_REPARSE):
445: if (REPARSE_LIMIT >= ++curp->reparse_count)
446: mparse_buf_r(curp, ln, 0);
447: else
1.3 kristaps 448: mandoc_msg(MANDOCERR_ROFFLOOP, curp,
1.1 kristaps 449: curp->line, pos, NULL);
450: pos = 0;
451: continue;
452: case (ROFF_APPEND):
453: pos = (int)strlen(ln.buf);
454: continue;
455: case (ROFF_RERUN):
456: goto rerun;
457: case (ROFF_IGN):
458: pos = 0;
459: continue;
460: case (ROFF_ERR):
461: assert(MANDOCLEVEL_FATAL <= curp->file_status);
462: break;
463: case (ROFF_SO):
1.24 kristaps 464: /*
465: * We remove `so' clauses from our lookaside
466: * buffer because we're going to descend into
467: * the file recursively.
468: */
1.25 kristaps 469: if (curp->secondary)
470: curp->secondary->sz -= pos + 1;
1.1 kristaps 471: mparse_readfd_r(curp, -1, ln.buf + of, 1);
472: if (MANDOCLEVEL_FATAL <= curp->file_status)
473: break;
474: pos = 0;
475: continue;
476: default:
477: break;
478: }
479:
480: /*
481: * If we encounter errors in the recursive parse, make
482: * sure we don't continue parsing.
483: */
484:
485: if (MANDOCLEVEL_FATAL <= curp->file_status)
486: break;
487:
488: /*
489: * If input parsers have not been allocated, do so now.
1.14 kristaps 490: * We keep these instanced between parsers, but set them
1.1 kristaps 491: * locally per parse routine since we can use different
492: * parsers with each one.
493: */
494:
495: if ( ! (curp->man || curp->mdoc))
496: pset(ln.buf + of, pos - of, curp);
497:
498: /*
499: * Lastly, push down into the parsers themselves. One
500: * of these will have already been set in the pset()
501: * routine.
502: * If libroff returns ROFF_TBL, then add it to the
503: * currently open parse. Since we only get here if
504: * there does exist data (see tbl_data.c), we're
505: * guaranteed that something's been allocated.
506: * Do the same for ROFF_EQN.
507: */
508:
509: rc = -1;
510:
511: if (ROFF_TBL == rr)
512: while (NULL != (span = roff_span(curp->roff))) {
513: rc = curp->man ?
514: man_addspan(curp->man, span) :
515: mdoc_addspan(curp->mdoc, span);
516: if (0 == rc)
517: break;
518: }
519: else if (ROFF_EQN == rr)
520: rc = curp->mdoc ?
521: mdoc_addeqn(curp->mdoc,
522: roff_eqn(curp->roff)) :
523: man_addeqn(curp->man,
524: roff_eqn(curp->roff));
525: else if (curp->man || curp->mdoc)
526: rc = curp->man ?
527: man_parseln(curp->man,
528: curp->line, ln.buf, of) :
529: mdoc_parseln(curp->mdoc,
530: curp->line, ln.buf, of);
531:
532: if (0 == rc) {
533: assert(MANDOCLEVEL_FATAL <= curp->file_status);
534: break;
535: }
536:
537: /* Temporary buffers typically are not full. */
538:
539: if (0 == start && '\0' == blk.buf[i])
540: break;
541:
542: /* Start the next input line. */
543:
544: pos = 0;
545: }
546:
547: free(ln.buf);
548: }
549:
550: static void
551: pdesc(struct mparse *curp, const char *file, int fd)
552: {
553: struct buf blk;
554: int with_mmap;
555:
556: /*
557: * Run for each opened file; may be called more than once for
558: * each full parse sequence if the opened file is nested (i.e.,
559: * from `so'). Simply sucks in the whole file and moves into
560: * the parse phase for the file.
561: */
562:
563: if ( ! read_whole_file(file, fd, &blk, &with_mmap)) {
564: curp->file_status = MANDOCLEVEL_SYSERR;
565: return;
566: }
567:
568: /* Line number is per-file. */
569:
570: curp->line = 1;
571:
572: mparse_buf_r(curp, blk, 1);
573:
1.15 kristaps 574: #ifdef HAVE_MMAP
1.1 kristaps 575: if (with_mmap)
576: munmap(blk.buf, blk.sz);
577: else
1.15 kristaps 578: #endif
1.1 kristaps 579: free(blk.buf);
580: }
581:
582: static int
583: read_whole_file(const char *file, int fd, struct buf *fb, int *with_mmap)
584: {
585: size_t off;
586: ssize_t ssz;
587:
1.15 kristaps 588: #ifdef HAVE_MMAP
589: struct stat st;
1.1 kristaps 590: if (-1 == fstat(fd, &st)) {
591: perror(file);
592: return(0);
593: }
594:
595: /*
596: * If we're a regular file, try just reading in the whole entry
597: * via mmap(). This is faster than reading it into blocks, and
598: * since each file is only a few bytes to begin with, I'm not
599: * concerned that this is going to tank any machines.
600: */
601:
602: if (S_ISREG(st.st_mode)) {
603: if (st.st_size >= (1U << 31)) {
604: fprintf(stderr, "%s: input too large\n", file);
605: return(0);
606: }
607: *with_mmap = 1;
608: fb->sz = (size_t)st.st_size;
609: fb->buf = mmap(NULL, fb->sz, PROT_READ,
610: MAP_FILE|MAP_SHARED, fd, 0);
611: if (fb->buf != MAP_FAILED)
612: return(1);
613: }
1.15 kristaps 614: #endif
1.1 kristaps 615:
616: /*
617: * If this isn't a regular file (like, say, stdin), then we must
618: * go the old way and just read things in bit by bit.
619: */
620:
621: *with_mmap = 0;
622: off = 0;
623: fb->sz = 0;
624: fb->buf = NULL;
625: for (;;) {
626: if (off == fb->sz) {
627: if (fb->sz == (1U << 31)) {
628: fprintf(stderr, "%s: input too large\n", file);
629: break;
630: }
631: resize_buf(fb, 65536);
632: }
633: ssz = read(fd, fb->buf + (int)off, fb->sz - off);
634: if (ssz == 0) {
635: fb->sz = off;
636: return(1);
637: }
638: if (ssz == -1) {
639: perror(file);
640: break;
641: }
642: off += (size_t)ssz;
643: }
644:
645: free(fb->buf);
646: fb->buf = NULL;
647: return(0);
648: }
649:
650: static void
651: mparse_end(struct mparse *curp)
652: {
653:
654: if (MANDOCLEVEL_FATAL <= curp->file_status)
655: return;
656:
657: if (curp->mdoc && ! mdoc_endparse(curp->mdoc)) {
658: assert(MANDOCLEVEL_FATAL <= curp->file_status);
659: return;
660: }
661:
662: if (curp->man && ! man_endparse(curp->man)) {
663: assert(MANDOCLEVEL_FATAL <= curp->file_status);
664: return;
665: }
666:
667: if ( ! (curp->man || curp->mdoc)) {
1.6 kristaps 668: mandoc_msg(MANDOCERR_NOTMANUAL, curp, 1, 0, NULL);
1.1 kristaps 669: curp->file_status = MANDOCLEVEL_FATAL;
1.6 kristaps 670: return;
1.1 kristaps 671: }
672:
673: roff_endparse(curp->roff);
674: }
675:
676: static void
677: mparse_readfd_r(struct mparse *curp, int fd, const char *file, int re)
678: {
679: const char *svfile;
680:
681: if (-1 == fd)
682: if (-1 == (fd = open(file, O_RDONLY, 0))) {
683: perror(file);
684: curp->file_status = MANDOCLEVEL_SYSERR;
685: return;
686: }
687:
1.3 kristaps 688: svfile = curp->file;
689: curp->file = file;
1.1 kristaps 690:
691: pdesc(curp, file, fd);
692:
693: if (0 == re && MANDOCLEVEL_FATAL > curp->file_status)
694: mparse_end(curp);
695:
696: if (STDIN_FILENO != fd && -1 == close(fd))
697: perror(file);
698:
1.3 kristaps 699: curp->file = svfile;
1.1 kristaps 700: }
701:
702: enum mandoclevel
703: mparse_readfd(struct mparse *curp, int fd, const char *file)
704: {
705:
706: mparse_readfd_r(curp, fd, file, 0);
707: return(curp->file_status);
708: }
709:
710: struct mparse *
1.4 kristaps 711: mparse_alloc(enum mparset inttype, enum mandoclevel wlevel, mandocmsg mmsg, void *arg)
1.1 kristaps 712: {
713: struct mparse *curp;
1.10 kristaps 714:
715: assert(wlevel <= MANDOCLEVEL_FATAL);
1.1 kristaps 716:
717: curp = mandoc_calloc(1, sizeof(struct mparse));
718:
1.3 kristaps 719: curp->wlevel = wlevel;
1.1 kristaps 720: curp->mmsg = mmsg;
721: curp->arg = arg;
722: curp->inttype = inttype;
723:
1.18 kristaps 724: curp->roff = roff_alloc(curp);
1.1 kristaps 725: return(curp);
726: }
727:
728: void
729: mparse_reset(struct mparse *curp)
730: {
731:
732: roff_reset(curp->roff);
733:
734: if (curp->mdoc)
735: mdoc_reset(curp->mdoc);
736: if (curp->man)
737: man_reset(curp->man);
1.24 kristaps 738: if (curp->secondary)
739: curp->secondary->sz = 0;
1.1 kristaps 740:
741: curp->file_status = MANDOCLEVEL_OK;
742: curp->mdoc = NULL;
743: curp->man = NULL;
744: }
745:
746: void
747: mparse_free(struct mparse *curp)
748: {
749:
750: if (curp->pmdoc)
751: mdoc_free(curp->pmdoc);
752: if (curp->pman)
753: man_free(curp->pman);
754: if (curp->roff)
755: roff_free(curp->roff);
1.24 kristaps 756: if (curp->secondary)
757: free(curp->secondary->buf);
1.1 kristaps 758:
1.24 kristaps 759: free(curp->secondary);
1.1 kristaps 760: free(curp);
761: }
762:
763: void
764: mparse_result(struct mparse *curp, struct mdoc **mdoc, struct man **man)
765: {
766:
1.9 kristaps 767: if (mdoc)
768: *mdoc = curp->mdoc;
769: if (man)
770: *man = curp->man;
1.3 kristaps 771: }
772:
773: void
774: mandoc_vmsg(enum mandocerr t, struct mparse *m,
775: int ln, int pos, const char *fmt, ...)
776: {
777: char buf[256];
778: va_list ap;
779:
780: va_start(ap, fmt);
781: vsnprintf(buf, sizeof(buf) - 1, fmt, ap);
782: va_end(ap);
783:
784: mandoc_msg(t, m, ln, pos, buf);
785: }
786:
787: void
788: mandoc_msg(enum mandocerr er, struct mparse *m,
789: int ln, int col, const char *msg)
790: {
791: enum mandoclevel level;
792:
793: level = MANDOCLEVEL_FATAL;
794: while (er < mandoclimits[level])
795: level--;
796:
797: if (level < m->wlevel)
798: return;
799:
1.8 kristaps 800: if (m->mmsg)
801: (*m->mmsg)(er, level, m->file, ln, col, msg);
1.3 kristaps 802:
803: if (m->file_status < level)
804: m->file_status = level;
1.7 kristaps 805: }
806:
807: const char *
808: mparse_strerror(enum mandocerr er)
809: {
810:
811: return(mandocerrs[er]);
812: }
813:
814: const char *
815: mparse_strlevel(enum mandoclevel lvl)
816: {
817: return(mandoclevels[lvl]);
1.24 kristaps 818: }
819:
820: void
821: mparse_keep(struct mparse *p)
822: {
823:
824: assert(NULL == p->secondary);
825: p->secondary = mandoc_calloc(1, sizeof(struct buf));
826: }
827:
828: const char *
829: mparse_getkeep(const struct mparse *p)
830: {
831:
832: assert(p->secondary);
833: return(p->secondary->sz ? p->secondary->buf : NULL);
1.1 kristaps 834: }
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