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1.16 ! schwarze 1: /* $Id: read.c,v 1.15 2013/06/02 03:35:21 schwarze Exp $ */
1.1 schwarze 2: /*
3: * Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
1.13 schwarze 4: * Copyright (c) 2010, 2011, 2012, 2013 Ingo Schwarze <schwarze@openbsd.org>
1.1 schwarze 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 pset(const char *, int, struct mparse *);
63: static int read_whole_file(const char *, int, struct buf *, int *);
64: static void mparse_end(struct mparse *);
1.15 schwarze 65: static void mparse_parse_buffer(struct mparse *, struct buf,
66: const char *);
1.1 schwarze 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",
1.11 schwarze 87: "unknown manual volume or arch",
1.1 schwarze 88: "date missing, using today's date",
89: "cannot parse date, using it verbatim",
90: "prologue macros out of order",
91: "duplicate prologue macro",
92: "macro not allowed in prologue",
93: "macro not allowed in body",
94:
95: /* related to document structure */
96: ".so is fragile, better use ln(1)",
97: "NAME section must come first",
98: "bad NAME section contents",
99: "sections out of conventional order",
100: "duplicate section name",
101: "section not in conventional manual section",
102:
103: /* related to macros and nesting */
104: "skipping obsolete macro",
105: "skipping paragraph macro",
1.10 schwarze 106: "moving paragraph macro out of list",
1.1 schwarze 107: "skipping no-space macro",
108: "blocks badly nested",
109: "child violates parent syntax",
110: "nested displays are not portable",
111: "already in literal mode",
112: "line scope broken",
113:
114: /* related to missing macro arguments */
115: "skipping empty macro",
116: "argument count wrong",
117: "missing display type",
118: "list type must come first",
119: "tag lists require a width argument",
120: "missing font type",
121: "skipping end of block that is not open",
122:
123: /* related to bad macro arguments */
124: "skipping argument",
125: "duplicate argument",
126: "duplicate display type",
127: "duplicate list type",
128: "unknown AT&T UNIX version",
129: "bad Boolean value",
130: "unknown font",
131: "unknown standard specifier",
132: "bad width argument",
133:
134: /* related to plain text */
135: "blank line in non-literal context",
136: "tab in non-literal context",
137: "end of line whitespace",
138: "bad comment style",
1.2 schwarze 139: "bad escape sequence",
1.1 schwarze 140: "unterminated quoted string",
1.3 schwarze 141:
142: /* related to equations */
143: "unexpected literal in equation",
1.1 schwarze 144:
145: "generic error",
146:
1.3 schwarze 147: /* related to equations */
148: "unexpected equation scope closure",
149: "equation scope open on exit",
150: "overlapping equation scopes",
151: "unexpected end of equation",
152: "equation syntax error",
153:
1.1 schwarze 154: /* related to tables */
155: "bad table syntax",
156: "bad table option",
157: "bad table layout",
158: "no table layout cells specified",
159: "no table data cells specified",
160: "ignore data in cell",
161: "data block still open",
162: "ignoring extra data cells",
163:
164: "input stack limit exceeded, infinite loop?",
165: "skipping bad character",
166: "escaped character not allowed in a name",
1.9 schwarze 167: "manual name not yet set",
1.1 schwarze 168: "skipping text before the first section header",
169: "skipping unknown macro",
170: "NOT IMPLEMENTED, please use groff: skipping request",
171: "argument count wrong",
1.12 schwarze 172: "skipping column outside column list",
1.1 schwarze 173: "skipping end of block that is not open",
174: "missing end of block",
175: "scope open on exit",
176: "uname(3) system call failed",
177: "macro requires line argument(s)",
178: "macro requires body argument(s)",
179: "macro requires argument(s)",
1.16 ! schwarze 180: "request requires a numeric argument",
1.1 schwarze 181: "missing list type",
182: "line argument(s) will be lost",
183: "body argument(s) will be lost",
184:
185: "generic fatal error",
186:
187: "not a manual",
188: "column syntax is inconsistent",
189: "NOT IMPLEMENTED: .Bd -file",
190: "argument count wrong, violates syntax",
191: "child violates parent syntax",
192: "argument count wrong, violates syntax",
193: "NOT IMPLEMENTED: .so with absolute path or \"..\"",
194: "no document body",
195: "no document prologue",
196: "static buffer exhausted",
197: };
198:
199: static const char * const mandoclevels[MANDOCLEVEL_MAX] = {
200: "SUCCESS",
201: "RESERVED",
202: "WARNING",
203: "ERROR",
204: "FATAL",
205: "BADARG",
206: "SYSERR"
207: };
208:
209: static void
210: resize_buf(struct buf *buf, size_t initial)
211: {
212:
213: buf->sz = buf->sz > initial/2 ? 2 * buf->sz : initial;
214: buf->buf = mandoc_realloc(buf->buf, buf->sz);
215: }
216:
217: static void
218: pset(const char *buf, int pos, struct mparse *curp)
219: {
220: int i;
221:
222: /*
223: * Try to intuit which kind of manual parser should be used. If
224: * passed in by command-line (-man, -mdoc), then use that
225: * explicitly. If passed as -mandoc, then try to guess from the
226: * line: either skip dot-lines, use -mdoc when finding `.Dt', or
227: * default to -man, which is more lenient.
228: *
229: * Separate out pmdoc/pman from mdoc/man: the first persists
230: * through all parsers, while the latter is used per-parse.
231: */
232:
233: if ('.' == buf[0] || '\'' == buf[0]) {
234: for (i = 1; buf[i]; i++)
235: if (' ' != buf[i] && '\t' != buf[i])
236: break;
237: if ('\0' == buf[i])
238: return;
239: }
240:
241: switch (curp->inttype) {
242: case (MPARSE_MDOC):
243: if (NULL == curp->pmdoc)
1.7 schwarze 244: curp->pmdoc = mdoc_alloc(curp->roff, curp,
245: curp->defos);
1.1 schwarze 246: assert(curp->pmdoc);
247: curp->mdoc = curp->pmdoc;
248: return;
249: case (MPARSE_MAN):
250: if (NULL == curp->pman)
1.3 schwarze 251: curp->pman = man_alloc(curp->roff, curp);
1.1 schwarze 252: assert(curp->pman);
253: curp->man = curp->pman;
254: return;
255: default:
256: break;
257: }
258:
259: if (pos >= 3 && 0 == memcmp(buf, ".Dd", 3)) {
260: if (NULL == curp->pmdoc)
1.7 schwarze 261: curp->pmdoc = mdoc_alloc(curp->roff, curp,
262: curp->defos);
1.1 schwarze 263: assert(curp->pmdoc);
264: curp->mdoc = curp->pmdoc;
265: return;
266: }
267:
268: if (NULL == curp->pman)
1.3 schwarze 269: curp->pman = man_alloc(curp->roff, curp);
1.1 schwarze 270: assert(curp->pman);
271: curp->man = curp->pman;
272: }
273:
274: /*
275: * Main parse routine for an opened file. This is called for each
276: * opened file and simply loops around the full input file, possibly
277: * nesting (i.e., with `so').
278: */
279: static void
280: mparse_buf_r(struct mparse *curp, struct buf blk, int start)
281: {
282: const struct tbl_span *span;
283: struct buf ln;
284: enum rofferr rr;
285: int i, of, rc;
286: int pos; /* byte number in the ln buffer */
287: int lnn; /* line number in the real file */
288: unsigned char c;
289:
290: memset(&ln, 0, sizeof(struct buf));
291:
292: lnn = curp->line;
293: pos = 0;
294:
295: for (i = 0; i < (int)blk.sz; ) {
296: if (0 == pos && '\0' == blk.buf[i])
297: break;
298:
299: if (start) {
300: curp->line = lnn;
301: curp->reparse_count = 0;
302: }
303:
304: while (i < (int)blk.sz && (start || '\0' != blk.buf[i])) {
305:
306: /*
307: * When finding an unescaped newline character,
308: * leave the character loop to process the line.
309: * Skip a preceding carriage return, if any.
310: */
311:
312: if ('\r' == blk.buf[i] && i + 1 < (int)blk.sz &&
313: '\n' == blk.buf[i + 1])
314: ++i;
315: if ('\n' == blk.buf[i]) {
316: ++i;
317: ++lnn;
318: break;
319: }
320:
1.13 schwarze 321: /*
322: * Make sure we have space for at least
323: * one backslash and one other character
324: * and the trailing NUL byte.
325: */
326:
327: if (pos + 2 >= (int)ln.sz)
328: resize_buf(&ln, 256);
329:
1.1 schwarze 330: /*
331: * Warn about bogus characters. If you're using
332: * non-ASCII encoding, you're screwing your
333: * readers. Since I'd rather this not happen,
1.6 schwarze 334: * I'll be helpful and replace these characters
335: * with "?", so we don't display gibberish.
336: * Note to manual writers: use special characters.
1.1 schwarze 337: */
338:
339: c = (unsigned char) blk.buf[i];
340:
341: if ( ! (isascii(c) &&
342: (isgraph(c) || isblank(c)))) {
343: mandoc_msg(MANDOCERR_BADCHAR, curp,
1.6 schwarze 344: curp->line, pos, NULL);
1.1 schwarze 345: i++;
1.6 schwarze 346: ln.buf[pos++] = '?';
1.1 schwarze 347: continue;
348: }
349:
350: /* Trailing backslash = a plain char. */
351:
352: if ('\\' != blk.buf[i] || i + 1 == (int)blk.sz) {
353: ln.buf[pos++] = blk.buf[i++];
354: continue;
355: }
356:
357: /*
358: * Found escape and at least one other character.
359: * When it's a newline character, skip it.
360: * When there is a carriage return in between,
361: * skip that one as well.
362: */
363:
364: if ('\r' == blk.buf[i + 1] && i + 2 < (int)blk.sz &&
365: '\n' == blk.buf[i + 2])
366: ++i;
367: if ('\n' == blk.buf[i + 1]) {
368: i += 2;
369: ++lnn;
370: continue;
371: }
372:
373: if ('"' == blk.buf[i + 1] || '#' == blk.buf[i + 1]) {
374: i += 2;
375: /* Comment, skip to end of line */
376: for (; i < (int)blk.sz; ++i) {
377: if ('\n' == blk.buf[i]) {
378: ++i;
379: ++lnn;
380: break;
381: }
382: }
383:
384: /* Backout trailing whitespaces */
385: for (; pos > 0; --pos) {
386: if (ln.buf[pos - 1] != ' ')
387: break;
388: if (pos > 2 && ln.buf[pos - 2] == '\\')
389: break;
390: }
391: break;
392: }
393:
1.13 schwarze 394: /* Catch escaped bogus characters. */
395:
396: c = (unsigned char) blk.buf[i+1];
397:
398: if ( ! (isascii(c) &&
399: (isgraph(c) || isblank(c)))) {
400: mandoc_msg(MANDOCERR_BADCHAR, curp,
401: curp->line, pos, NULL);
402: i += 2;
403: ln.buf[pos++] = '?';
404: continue;
405: }
406:
1.1 schwarze 407: /* Some other escape sequence, copy & cont. */
408:
409: ln.buf[pos++] = blk.buf[i++];
410: ln.buf[pos++] = blk.buf[i++];
411: }
412:
413: if (pos >= (int)ln.sz)
414: resize_buf(&ln, 256);
415:
416: ln.buf[pos] = '\0';
417:
418: /*
419: * A significant amount of complexity is contained by
420: * the roff preprocessor. It's line-oriented but can be
421: * expressed on one line, so we need at times to
422: * readjust our starting point and re-run it. The roff
423: * preprocessor can also readjust the buffers with new
424: * data, so we pass them in wholesale.
425: */
426:
427: of = 0;
428:
1.4 schwarze 429: /*
430: * Maintain a lookaside buffer of all parsed lines. We
431: * only do this if mparse_keep() has been invoked (the
432: * buffer may be accessed with mparse_getkeep()).
433: */
434:
435: if (curp->secondary) {
436: curp->secondary->buf =
437: mandoc_realloc
438: (curp->secondary->buf,
439: curp->secondary->sz + pos + 2);
440: memcpy(curp->secondary->buf +
441: curp->secondary->sz,
442: ln.buf, pos);
443: curp->secondary->sz += pos;
444: curp->secondary->buf
445: [curp->secondary->sz] = '\n';
446: curp->secondary->sz++;
447: curp->secondary->buf
448: [curp->secondary->sz] = '\0';
449: }
1.1 schwarze 450: rerun:
451: rr = roff_parseln
452: (curp->roff, curp->line,
453: &ln.buf, &ln.sz, of, &of);
454:
455: switch (rr) {
456: case (ROFF_REPARSE):
457: if (REPARSE_LIMIT >= ++curp->reparse_count)
458: mparse_buf_r(curp, ln, 0);
459: else
460: mandoc_msg(MANDOCERR_ROFFLOOP, curp,
461: curp->line, pos, NULL);
462: pos = 0;
463: continue;
464: case (ROFF_APPEND):
465: pos = (int)strlen(ln.buf);
466: continue;
467: case (ROFF_RERUN):
468: goto rerun;
469: case (ROFF_IGN):
470: pos = 0;
471: continue;
472: case (ROFF_ERR):
473: assert(MANDOCLEVEL_FATAL <= curp->file_status);
474: break;
475: case (ROFF_SO):
1.4 schwarze 476: /*
477: * We remove `so' clauses from our lookaside
478: * buffer because we're going to descend into
479: * the file recursively.
480: */
481: if (curp->secondary)
482: curp->secondary->sz -= pos + 1;
1.14 schwarze 483: mparse_readfd(curp, -1, ln.buf + of);
1.1 schwarze 484: if (MANDOCLEVEL_FATAL <= curp->file_status)
485: break;
486: pos = 0;
487: continue;
488: default:
489: break;
490: }
491:
492: /*
493: * If we encounter errors in the recursive parse, make
494: * sure we don't continue parsing.
495: */
496:
497: if (MANDOCLEVEL_FATAL <= curp->file_status)
498: break;
499:
500: /*
501: * If input parsers have not been allocated, do so now.
1.2 schwarze 502: * We keep these instanced between parsers, but set them
1.1 schwarze 503: * locally per parse routine since we can use different
504: * parsers with each one.
505: */
506:
507: if ( ! (curp->man || curp->mdoc))
508: pset(ln.buf + of, pos - of, curp);
509:
510: /*
511: * Lastly, push down into the parsers themselves. One
512: * of these will have already been set in the pset()
513: * routine.
514: * If libroff returns ROFF_TBL, then add it to the
515: * currently open parse. Since we only get here if
516: * there does exist data (see tbl_data.c), we're
517: * guaranteed that something's been allocated.
518: * Do the same for ROFF_EQN.
519: */
520:
521: rc = -1;
522:
523: if (ROFF_TBL == rr)
524: while (NULL != (span = roff_span(curp->roff))) {
525: rc = curp->man ?
526: man_addspan(curp->man, span) :
527: mdoc_addspan(curp->mdoc, span);
528: if (0 == rc)
529: break;
530: }
531: else if (ROFF_EQN == rr)
532: rc = curp->mdoc ?
533: mdoc_addeqn(curp->mdoc,
534: roff_eqn(curp->roff)) :
535: man_addeqn(curp->man,
536: roff_eqn(curp->roff));
537: else if (curp->man || curp->mdoc)
538: rc = curp->man ?
539: man_parseln(curp->man,
540: curp->line, ln.buf, of) :
541: mdoc_parseln(curp->mdoc,
542: curp->line, ln.buf, of);
543:
544: if (0 == rc) {
545: assert(MANDOCLEVEL_FATAL <= curp->file_status);
546: break;
547: }
548:
549: /* Temporary buffers typically are not full. */
550:
551: if (0 == start && '\0' == blk.buf[i])
552: break;
553:
554: /* Start the next input line. */
555:
556: pos = 0;
557: }
558:
559: free(ln.buf);
560: }
561:
562: static int
563: read_whole_file(const char *file, int fd, struct buf *fb, int *with_mmap)
564: {
565: struct stat st;
566: size_t off;
567: ssize_t ssz;
568:
569: if (-1 == fstat(fd, &st)) {
570: perror(file);
571: return(0);
572: }
573:
574: /*
575: * If we're a regular file, try just reading in the whole entry
576: * via mmap(). This is faster than reading it into blocks, and
577: * since each file is only a few bytes to begin with, I'm not
578: * concerned that this is going to tank any machines.
579: */
580:
581: if (S_ISREG(st.st_mode)) {
582: if (st.st_size >= (1U << 31)) {
583: fprintf(stderr, "%s: input too large\n", file);
584: return(0);
585: }
586: *with_mmap = 1;
587: fb->sz = (size_t)st.st_size;
1.15 schwarze 588: fb->buf = mmap(NULL, fb->sz, PROT_READ, MAP_SHARED, fd, 0);
1.1 schwarze 589: if (fb->buf != MAP_FAILED)
590: return(1);
591: }
592:
593: /*
594: * If this isn't a regular file (like, say, stdin), then we must
595: * go the old way and just read things in bit by bit.
596: */
597:
598: *with_mmap = 0;
599: off = 0;
600: fb->sz = 0;
601: fb->buf = NULL;
602: for (;;) {
603: if (off == fb->sz) {
604: if (fb->sz == (1U << 31)) {
605: fprintf(stderr, "%s: input too large\n", file);
606: break;
607: }
608: resize_buf(fb, 65536);
609: }
610: ssz = read(fd, fb->buf + (int)off, fb->sz - off);
611: if (ssz == 0) {
612: fb->sz = off;
613: return(1);
614: }
615: if (ssz == -1) {
616: perror(file);
617: break;
618: }
619: off += (size_t)ssz;
620: }
621:
622: free(fb->buf);
623: fb->buf = NULL;
624: return(0);
625: }
626:
627: static void
628: mparse_end(struct mparse *curp)
629: {
630:
631: if (MANDOCLEVEL_FATAL <= curp->file_status)
632: return;
633:
634: if (curp->mdoc && ! mdoc_endparse(curp->mdoc)) {
635: assert(MANDOCLEVEL_FATAL <= curp->file_status);
636: return;
637: }
638:
639: if (curp->man && ! man_endparse(curp->man)) {
640: assert(MANDOCLEVEL_FATAL <= curp->file_status);
641: return;
642: }
643:
644: if ( ! (curp->man || curp->mdoc)) {
645: mandoc_msg(MANDOCERR_NOTMANUAL, curp, 1, 0, NULL);
646: curp->file_status = MANDOCLEVEL_FATAL;
647: return;
648: }
649:
650: roff_endparse(curp->roff);
651: }
652:
1.15 schwarze 653: static void
654: mparse_parse_buffer(struct mparse *curp, struct buf blk, const char *file)
1.1 schwarze 655: {
656: const char *svfile;
1.14 schwarze 657: static int recursion_depth;
658:
659: if (64 < recursion_depth) {
660: mandoc_msg(MANDOCERR_ROFFLOOP, curp, curp->line, 0, NULL);
1.15 schwarze 661: return;
1.14 schwarze 662: }
1.1 schwarze 663:
1.15 schwarze 664: /* Line number is per-file. */
665: svfile = curp->file;
666: curp->file = file;
667: curp->line = 1;
668: recursion_depth++;
669:
670: mparse_buf_r(curp, blk, 1);
671:
672: if (0 == --recursion_depth && MANDOCLEVEL_FATAL > curp->file_status)
673: mparse_end(curp);
674:
675: curp->file = svfile;
676: }
677:
678: enum mandoclevel
679: mparse_readfd(struct mparse *curp, int fd, const char *file)
680: {
681: struct buf blk;
682: int with_mmap;
683:
1.1 schwarze 684: if (-1 == fd)
685: if (-1 == (fd = open(file, O_RDONLY, 0))) {
686: perror(file);
687: curp->file_status = MANDOCLEVEL_SYSERR;
1.14 schwarze 688: goto out;
1.1 schwarze 689: }
1.15 schwarze 690: /*
691: * Run for each opened file; may be called more than once for
692: * each full parse sequence if the opened file is nested (i.e.,
693: * from `so'). Simply sucks in the whole file and moves into
694: * the parse phase for the file.
695: */
1.1 schwarze 696:
1.15 schwarze 697: if ( ! read_whole_file(file, fd, &blk, &with_mmap)) {
698: curp->file_status = MANDOCLEVEL_SYSERR;
699: goto out;
700: }
1.1 schwarze 701:
1.15 schwarze 702: mparse_parse_buffer(curp, blk, file);
1.1 schwarze 703:
1.15 schwarze 704: if (with_mmap)
705: munmap(blk.buf, blk.sz);
706: else
707: free(blk.buf);
1.1 schwarze 708:
709: if (STDIN_FILENO != fd && -1 == close(fd))
710: perror(file);
1.14 schwarze 711: out:
1.1 schwarze 712: return(curp->file_status);
713: }
714:
715: struct mparse *
1.7 schwarze 716: mparse_alloc(enum mparset inttype, enum mandoclevel wlevel,
717: mandocmsg mmsg, void *arg, char *defos)
1.1 schwarze 718: {
719: struct mparse *curp;
720:
721: assert(wlevel <= MANDOCLEVEL_FATAL);
722:
723: curp = mandoc_calloc(1, sizeof(struct mparse));
724:
725: curp->wlevel = wlevel;
726: curp->mmsg = mmsg;
727: curp->arg = arg;
728: curp->inttype = inttype;
1.7 schwarze 729: curp->defos = defos;
1.1 schwarze 730:
1.8 schwarze 731: curp->roff = roff_alloc(inttype, curp);
1.1 schwarze 732: return(curp);
733: }
734:
735: void
736: mparse_reset(struct mparse *curp)
737: {
738:
739: roff_reset(curp->roff);
740:
741: if (curp->mdoc)
742: mdoc_reset(curp->mdoc);
743: if (curp->man)
744: man_reset(curp->man);
1.4 schwarze 745: if (curp->secondary)
746: curp->secondary->sz = 0;
1.1 schwarze 747:
748: curp->file_status = MANDOCLEVEL_OK;
749: curp->mdoc = NULL;
750: curp->man = NULL;
751: }
752:
753: void
754: mparse_free(struct mparse *curp)
755: {
756:
757: if (curp->pmdoc)
758: mdoc_free(curp->pmdoc);
759: if (curp->pman)
760: man_free(curp->pman);
761: if (curp->roff)
762: roff_free(curp->roff);
1.4 schwarze 763: if (curp->secondary)
764: free(curp->secondary->buf);
1.1 schwarze 765:
1.4 schwarze 766: free(curp->secondary);
1.1 schwarze 767: free(curp);
768: }
769:
770: void
771: mparse_result(struct mparse *curp, struct mdoc **mdoc, struct man **man)
772: {
773:
774: if (mdoc)
775: *mdoc = curp->mdoc;
776: if (man)
777: *man = curp->man;
778: }
779:
780: void
781: mandoc_vmsg(enum mandocerr t, struct mparse *m,
782: int ln, int pos, const char *fmt, ...)
783: {
784: char buf[256];
785: va_list ap;
786:
787: va_start(ap, fmt);
788: vsnprintf(buf, sizeof(buf) - 1, fmt, ap);
789: va_end(ap);
790:
791: mandoc_msg(t, m, ln, pos, buf);
792: }
793:
794: void
795: mandoc_msg(enum mandocerr er, struct mparse *m,
796: int ln, int col, const char *msg)
797: {
798: enum mandoclevel level;
799:
800: level = MANDOCLEVEL_FATAL;
801: while (er < mandoclimits[level])
802: level--;
803:
804: if (level < m->wlevel)
805: return;
806:
807: if (m->mmsg)
808: (*m->mmsg)(er, level, m->file, ln, col, msg);
809:
810: if (m->file_status < level)
811: m->file_status = level;
812: }
813:
814: const char *
815: mparse_strerror(enum mandocerr er)
816: {
817:
818: return(mandocerrs[er]);
819: }
820:
821: const char *
822: mparse_strlevel(enum mandoclevel lvl)
823: {
824: return(mandoclevels[lvl]);
1.4 schwarze 825: }
826:
827: void
828: mparse_keep(struct mparse *p)
829: {
830:
831: assert(NULL == p->secondary);
832: p->secondary = mandoc_calloc(1, sizeof(struct buf));
833: }
834:
835: const char *
836: mparse_getkeep(const struct mparse *p)
837: {
838:
839: assert(p->secondary);
840: return(p->secondary->sz ? p->secondary->buf : NULL);
1.1 schwarze 841: }