Annotation of mandoc/read.c, Revision 1.31
1.31 ! schwarze 1: /* $Id: read.c,v 1.30 2012/07/12 15:11:14 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>
1.28 joerg 31: #include <stdint.h>
1.1 kristaps 32: #include <stdio.h>
33: #include <stdlib.h>
34: #include <string.h>
35: #include <unistd.h>
36:
37: #include "mandoc.h"
1.3 kristaps 38: #include "libmandoc.h"
1.1 kristaps 39: #include "mdoc.h"
40: #include "man.h"
1.28 joerg 41: #include "main.h"
1.1 kristaps 42:
43: #ifndef MAP_FILE
44: #define MAP_FILE 0
45: #endif
46:
47: #define REPARSE_LIMIT 1000
48:
49: struct buf {
50: char *buf; /* binary input buffer */
51: size_t sz; /* size of binary buffer */
52: };
53:
54: struct mparse {
55: enum mandoclevel file_status; /* status of current parse */
1.3 kristaps 56: enum mandoclevel wlevel; /* ignore messages below this */
1.1 kristaps 57: int line; /* line number in the file */
58: enum mparset inttype; /* which parser to use */
59: struct man *pman; /* persistent man parser */
60: struct mdoc *pmdoc; /* persistent mdoc parser */
61: struct man *man; /* man parser */
62: struct mdoc *mdoc; /* mdoc parser */
63: struct roff *roff; /* roff parser (!NULL) */
64: int reparse_count; /* finite interp. stack */
65: mandocmsg mmsg; /* warning/error message handler */
66: void *arg; /* argument to mmsg */
1.3 kristaps 67: const char *file;
1.24 kristaps 68: struct buf *secondary;
1.29 schwarze 69: char *defos; /* default operating system */
1.1 kristaps 70: };
71:
72: static void resize_buf(struct buf *, size_t);
73: static void mparse_buf_r(struct mparse *, struct buf, int);
74: static void mparse_readfd_r(struct mparse *, int, const char *, int);
75: static void pset(const char *, int, struct mparse *);
76: static int read_whole_file(const char *, int, struct buf *, int *);
77: static void mparse_end(struct mparse *);
78:
1.3 kristaps 79: static const enum mandocerr mandoclimits[MANDOCLEVEL_MAX] = {
80: MANDOCERR_OK,
81: MANDOCERR_WARNING,
82: MANDOCERR_WARNING,
83: MANDOCERR_ERROR,
84: MANDOCERR_FATAL,
85: MANDOCERR_MAX,
86: MANDOCERR_MAX
87: };
88:
1.7 kristaps 89: static const char * const mandocerrs[MANDOCERR_MAX] = {
90: "ok",
91:
92: "generic warning",
93:
94: /* related to the prologue */
95: "no title in document",
96: "document title should be all caps",
97: "unknown manual section",
98: "date missing, using today's date",
99: "cannot parse date, using it verbatim",
100: "prologue macros out of order",
101: "duplicate prologue macro",
102: "macro not allowed in prologue",
103: "macro not allowed in body",
104:
105: /* related to document structure */
106: ".so is fragile, better use ln(1)",
107: "NAME section must come first",
108: "bad NAME section contents",
109: "sections out of conventional order",
110: "duplicate section name",
111: "section not in conventional manual section",
112:
113: /* related to macros and nesting */
114: "skipping obsolete macro",
115: "skipping paragraph macro",
1.31 ! schwarze 116: "moving paragraph macro out of list",
1.7 kristaps 117: "skipping no-space macro",
118: "blocks badly nested",
119: "child violates parent syntax",
120: "nested displays are not portable",
121: "already in literal mode",
122: "line scope broken",
123:
124: /* related to missing macro arguments */
125: "skipping empty macro",
126: "argument count wrong",
127: "missing display type",
128: "list type must come first",
129: "tag lists require a width argument",
130: "missing font type",
131: "skipping end of block that is not open",
132:
133: /* related to bad macro arguments */
134: "skipping argument",
135: "duplicate argument",
136: "duplicate display type",
137: "duplicate list type",
138: "unknown AT&T UNIX version",
139: "bad Boolean value",
140: "unknown font",
141: "unknown standard specifier",
142: "bad width argument",
143:
144: /* related to plain text */
145: "blank line in non-literal context",
146: "tab in non-literal context",
147: "end of line whitespace",
148: "bad comment style",
1.12 kristaps 149: "bad escape sequence",
1.7 kristaps 150: "unterminated quoted string",
1.16 kristaps 151:
152: /* related to equations */
153: "unexpected literal in equation",
1.7 kristaps 154:
155: "generic error",
1.17 kristaps 156:
157: /* related to equations */
1.20 kristaps 158: "unexpected equation scope closure",
159: "equation scope open on exit",
1.21 kristaps 160: "overlapping equation scopes",
161: "unexpected end of equation",
162: "equation syntax error",
1.7 kristaps 163:
164: /* related to tables */
165: "bad table syntax",
166: "bad table option",
167: "bad table layout",
168: "no table layout cells specified",
169: "no table data cells specified",
170: "ignore data in cell",
171: "data block still open",
172: "ignoring extra data cells",
173:
174: "input stack limit exceeded, infinite loop?",
175: "skipping bad character",
176: "escaped character not allowed in a name",
1.30 schwarze 177: "manual name not yet set",
1.7 kristaps 178: "skipping text before the first section header",
179: "skipping unknown macro",
180: "NOT IMPLEMENTED, please use groff: skipping request",
181: "argument count wrong",
182: "skipping end of block that is not open",
183: "missing end of block",
184: "scope open on exit",
185: "uname(3) system call failed",
186: "macro requires line argument(s)",
187: "macro requires body argument(s)",
188: "macro requires argument(s)",
189: "missing list type",
190: "line argument(s) will be lost",
191: "body argument(s) will be lost",
192:
193: "generic fatal error",
194:
195: "not a manual",
196: "column syntax is inconsistent",
197: "NOT IMPLEMENTED: .Bd -file",
198: "argument count wrong, violates syntax",
199: "child violates parent syntax",
200: "argument count wrong, violates syntax",
201: "NOT IMPLEMENTED: .so with absolute path or \"..\"",
202: "no document body",
203: "no document prologue",
204: "static buffer exhausted",
205: };
206:
207: static const char * const mandoclevels[MANDOCLEVEL_MAX] = {
208: "SUCCESS",
209: "RESERVED",
210: "WARNING",
211: "ERROR",
212: "FATAL",
213: "BADARG",
214: "SYSERR"
215: };
216:
1.1 kristaps 217: static void
218: resize_buf(struct buf *buf, size_t initial)
219: {
220:
221: buf->sz = buf->sz > initial/2 ? 2 * buf->sz : initial;
222: buf->buf = mandoc_realloc(buf->buf, buf->sz);
223: }
224:
225: static void
226: pset(const char *buf, int pos, struct mparse *curp)
227: {
228: int i;
229:
230: /*
231: * Try to intuit which kind of manual parser should be used. If
232: * passed in by command-line (-man, -mdoc), then use that
233: * explicitly. If passed as -mandoc, then try to guess from the
234: * line: either skip dot-lines, use -mdoc when finding `.Dt', or
235: * default to -man, which is more lenient.
236: *
237: * Separate out pmdoc/pman from mdoc/man: the first persists
238: * through all parsers, while the latter is used per-parse.
239: */
240:
241: if ('.' == buf[0] || '\'' == buf[0]) {
242: for (i = 1; buf[i]; i++)
243: if (' ' != buf[i] && '\t' != buf[i])
244: break;
245: if ('\0' == buf[i])
246: return;
247: }
248:
249: switch (curp->inttype) {
250: case (MPARSE_MDOC):
251: if (NULL == curp->pmdoc)
1.29 schwarze 252: curp->pmdoc = mdoc_alloc(curp->roff, curp,
253: curp->defos);
1.1 kristaps 254: assert(curp->pmdoc);
255: curp->mdoc = curp->pmdoc;
256: return;
257: case (MPARSE_MAN):
258: if (NULL == curp->pman)
1.18 kristaps 259: curp->pman = man_alloc(curp->roff, curp);
1.1 kristaps 260: assert(curp->pman);
261: curp->man = curp->pman;
262: return;
263: default:
264: break;
265: }
266:
267: if (pos >= 3 && 0 == memcmp(buf, ".Dd", 3)) {
268: if (NULL == curp->pmdoc)
1.29 schwarze 269: curp->pmdoc = mdoc_alloc(curp->roff, curp,
270: curp->defos);
1.1 kristaps 271: assert(curp->pmdoc);
272: curp->mdoc = curp->pmdoc;
273: return;
274: }
275:
276: if (NULL == curp->pman)
1.18 kristaps 277: curp->pman = man_alloc(curp->roff, curp);
1.1 kristaps 278: assert(curp->pman);
279: curp->man = curp->pman;
280: }
281:
282: /*
283: * Main parse routine for an opened file. This is called for each
284: * opened file and simply loops around the full input file, possibly
285: * nesting (i.e., with `so').
286: */
287: static void
288: mparse_buf_r(struct mparse *curp, struct buf blk, int start)
289: {
290: const struct tbl_span *span;
291: struct buf ln;
292: enum rofferr rr;
293: int i, of, rc;
294: int pos; /* byte number in the ln buffer */
295: int lnn; /* line number in the real file */
296: unsigned char c;
297:
298: memset(&ln, 0, sizeof(struct buf));
299:
300: lnn = curp->line;
301: pos = 0;
302:
303: for (i = 0; i < (int)blk.sz; ) {
304: if (0 == pos && '\0' == blk.buf[i])
305: break;
306:
307: if (start) {
308: curp->line = lnn;
309: curp->reparse_count = 0;
310: }
311:
312: while (i < (int)blk.sz && (start || '\0' != blk.buf[i])) {
313:
314: /*
315: * When finding an unescaped newline character,
316: * leave the character loop to process the line.
317: * Skip a preceding carriage return, if any.
318: */
319:
320: if ('\r' == blk.buf[i] && i + 1 < (int)blk.sz &&
321: '\n' == blk.buf[i + 1])
322: ++i;
323: if ('\n' == blk.buf[i]) {
324: ++i;
325: ++lnn;
326: break;
327: }
328:
329: /*
330: * Warn about bogus characters. If you're using
331: * non-ASCII encoding, you're screwing your
332: * readers. Since I'd rather this not happen,
1.27 joerg 333: * I'll be helpful and replace these characters
334: * with "?", so we don't display gibberish.
335: * Note to manual writers: use special characters.
1.1 kristaps 336: */
337:
338: c = (unsigned char) blk.buf[i];
339:
340: if ( ! (isascii(c) &&
341: (isgraph(c) || isblank(c)))) {
1.3 kristaps 342: mandoc_msg(MANDOCERR_BADCHAR, curp,
1.27 joerg 343: curp->line, pos, NULL);
1.1 kristaps 344: i++;
1.27 joerg 345: if (pos >= (int)ln.sz)
346: resize_buf(&ln, 256);
347: ln.buf[pos++] = '?';
1.1 kristaps 348: continue;
349: }
350:
351: /* Trailing backslash = a plain char. */
352:
353: if ('\\' != blk.buf[i] || i + 1 == (int)blk.sz) {
354: if (pos >= (int)ln.sz)
355: resize_buf(&ln, 256);
356: ln.buf[pos++] = blk.buf[i++];
357: continue;
358: }
359:
360: /*
361: * Found escape and at least one other character.
362: * When it's a newline character, skip it.
363: * When there is a carriage return in between,
364: * skip that one as well.
365: */
366:
367: if ('\r' == blk.buf[i + 1] && i + 2 < (int)blk.sz &&
368: '\n' == blk.buf[i + 2])
369: ++i;
370: if ('\n' == blk.buf[i + 1]) {
371: i += 2;
372: ++lnn;
373: continue;
374: }
375:
1.13 kristaps 376: if ('"' == blk.buf[i + 1] || '#' == blk.buf[i + 1]) {
1.1 kristaps 377: i += 2;
378: /* Comment, skip to end of line */
379: for (; i < (int)blk.sz; ++i) {
380: if ('\n' == blk.buf[i]) {
381: ++i;
382: ++lnn;
383: break;
384: }
385: }
386:
387: /* Backout trailing whitespaces */
388: for (; pos > 0; --pos) {
389: if (ln.buf[pos - 1] != ' ')
390: break;
391: if (pos > 2 && ln.buf[pos - 2] == '\\')
392: break;
393: }
394: break;
395: }
396:
397: /* Some other escape sequence, copy & cont. */
398:
399: if (pos + 1 >= (int)ln.sz)
400: resize_buf(&ln, 256);
401:
402: ln.buf[pos++] = blk.buf[i++];
403: ln.buf[pos++] = blk.buf[i++];
404: }
405:
406: if (pos >= (int)ln.sz)
407: resize_buf(&ln, 256);
408:
409: ln.buf[pos] = '\0';
410:
411: /*
412: * A significant amount of complexity is contained by
413: * the roff preprocessor. It's line-oriented but can be
414: * expressed on one line, so we need at times to
415: * readjust our starting point and re-run it. The roff
416: * preprocessor can also readjust the buffers with new
417: * data, so we pass them in wholesale.
418: */
419:
420: of = 0;
421:
1.24 kristaps 422: /*
423: * Maintain a lookaside buffer of all parsed lines. We
424: * only do this if mparse_keep() has been invoked (the
425: * buffer may be accessed with mparse_getkeep()).
426: */
427:
428: if (curp->secondary) {
429: curp->secondary->buf =
430: mandoc_realloc
431: (curp->secondary->buf,
432: curp->secondary->sz + pos + 2);
433: memcpy(curp->secondary->buf +
434: curp->secondary->sz,
435: ln.buf, pos);
436: curp->secondary->sz += pos;
437: curp->secondary->buf
438: [curp->secondary->sz] = '\n';
439: curp->secondary->sz++;
440: curp->secondary->buf
441: [curp->secondary->sz] = '\0';
442: }
1.1 kristaps 443: rerun:
444: rr = roff_parseln
445: (curp->roff, curp->line,
446: &ln.buf, &ln.sz, of, &of);
447:
448: switch (rr) {
449: case (ROFF_REPARSE):
450: if (REPARSE_LIMIT >= ++curp->reparse_count)
451: mparse_buf_r(curp, ln, 0);
452: else
1.3 kristaps 453: mandoc_msg(MANDOCERR_ROFFLOOP, curp,
1.1 kristaps 454: curp->line, pos, NULL);
455: pos = 0;
456: continue;
457: case (ROFF_APPEND):
458: pos = (int)strlen(ln.buf);
459: continue;
460: case (ROFF_RERUN):
461: goto rerun;
462: case (ROFF_IGN):
463: pos = 0;
464: continue;
465: case (ROFF_ERR):
466: assert(MANDOCLEVEL_FATAL <= curp->file_status);
467: break;
468: case (ROFF_SO):
1.24 kristaps 469: /*
470: * We remove `so' clauses from our lookaside
471: * buffer because we're going to descend into
472: * the file recursively.
473: */
1.25 kristaps 474: if (curp->secondary)
475: curp->secondary->sz -= pos + 1;
1.1 kristaps 476: mparse_readfd_r(curp, -1, ln.buf + of, 1);
477: if (MANDOCLEVEL_FATAL <= curp->file_status)
478: break;
479: pos = 0;
480: continue;
481: default:
482: break;
483: }
484:
485: /*
486: * If we encounter errors in the recursive parse, make
487: * sure we don't continue parsing.
488: */
489:
490: if (MANDOCLEVEL_FATAL <= curp->file_status)
491: break;
492:
493: /*
494: * If input parsers have not been allocated, do so now.
1.14 kristaps 495: * We keep these instanced between parsers, but set them
1.1 kristaps 496: * locally per parse routine since we can use different
497: * parsers with each one.
498: */
499:
500: if ( ! (curp->man || curp->mdoc))
501: pset(ln.buf + of, pos - of, curp);
502:
503: /*
504: * Lastly, push down into the parsers themselves. One
505: * of these will have already been set in the pset()
506: * routine.
507: * If libroff returns ROFF_TBL, then add it to the
508: * currently open parse. Since we only get here if
509: * there does exist data (see tbl_data.c), we're
510: * guaranteed that something's been allocated.
511: * Do the same for ROFF_EQN.
512: */
513:
514: rc = -1;
515:
516: if (ROFF_TBL == rr)
517: while (NULL != (span = roff_span(curp->roff))) {
518: rc = curp->man ?
519: man_addspan(curp->man, span) :
520: mdoc_addspan(curp->mdoc, span);
521: if (0 == rc)
522: break;
523: }
524: else if (ROFF_EQN == rr)
525: rc = curp->mdoc ?
526: mdoc_addeqn(curp->mdoc,
527: roff_eqn(curp->roff)) :
528: man_addeqn(curp->man,
529: roff_eqn(curp->roff));
530: else if (curp->man || curp->mdoc)
531: rc = curp->man ?
532: man_parseln(curp->man,
533: curp->line, ln.buf, of) :
534: mdoc_parseln(curp->mdoc,
535: curp->line, ln.buf, of);
536:
537: if (0 == rc) {
538: assert(MANDOCLEVEL_FATAL <= curp->file_status);
539: break;
540: }
541:
542: /* Temporary buffers typically are not full. */
543:
544: if (0 == start && '\0' == blk.buf[i])
545: break;
546:
547: /* Start the next input line. */
548:
549: pos = 0;
550: }
551:
552: free(ln.buf);
553: }
554:
555: static int
556: read_whole_file(const char *file, int fd, struct buf *fb, int *with_mmap)
557: {
558: size_t off;
559: ssize_t ssz;
560:
1.15 kristaps 561: #ifdef HAVE_MMAP
562: struct stat st;
1.1 kristaps 563: if (-1 == fstat(fd, &st)) {
564: perror(file);
565: return(0);
566: }
567:
568: /*
569: * If we're a regular file, try just reading in the whole entry
570: * via mmap(). This is faster than reading it into blocks, and
571: * since each file is only a few bytes to begin with, I'm not
572: * concerned that this is going to tank any machines.
573: */
574:
575: if (S_ISREG(st.st_mode)) {
576: if (st.st_size >= (1U << 31)) {
577: fprintf(stderr, "%s: input too large\n", file);
578: return(0);
579: }
580: *with_mmap = 1;
581: fb->sz = (size_t)st.st_size;
582: fb->buf = mmap(NULL, fb->sz, PROT_READ,
583: MAP_FILE|MAP_SHARED, fd, 0);
584: if (fb->buf != MAP_FAILED)
585: return(1);
586: }
1.15 kristaps 587: #endif
1.1 kristaps 588:
589: /*
590: * If this isn't a regular file (like, say, stdin), then we must
591: * go the old way and just read things in bit by bit.
592: */
593:
594: *with_mmap = 0;
595: off = 0;
596: fb->sz = 0;
597: fb->buf = NULL;
598: for (;;) {
599: if (off == fb->sz) {
600: if (fb->sz == (1U << 31)) {
601: fprintf(stderr, "%s: input too large\n", file);
602: break;
603: }
604: resize_buf(fb, 65536);
605: }
606: ssz = read(fd, fb->buf + (int)off, fb->sz - off);
607: if (ssz == 0) {
608: fb->sz = off;
609: return(1);
610: }
611: if (ssz == -1) {
612: perror(file);
613: break;
614: }
615: off += (size_t)ssz;
616: }
617:
618: free(fb->buf);
619: fb->buf = NULL;
620: return(0);
621: }
622:
623: static void
624: mparse_end(struct mparse *curp)
625: {
626:
627: if (MANDOCLEVEL_FATAL <= curp->file_status)
628: return;
629:
630: if (curp->mdoc && ! mdoc_endparse(curp->mdoc)) {
631: assert(MANDOCLEVEL_FATAL <= curp->file_status);
632: return;
633: }
634:
635: if (curp->man && ! man_endparse(curp->man)) {
636: assert(MANDOCLEVEL_FATAL <= curp->file_status);
637: return;
638: }
639:
640: if ( ! (curp->man || curp->mdoc)) {
1.6 kristaps 641: mandoc_msg(MANDOCERR_NOTMANUAL, curp, 1, 0, NULL);
1.1 kristaps 642: curp->file_status = MANDOCLEVEL_FATAL;
1.6 kristaps 643: return;
1.1 kristaps 644: }
645:
646: roff_endparse(curp->roff);
647: }
648:
649: static void
1.28 joerg 650: mparse_parse_buffer(struct mparse *curp, struct buf blk, const char *file,
651: int re)
652: {
653: const char *svfile;
654:
655: /* Line number is per-file. */
656: svfile = curp->file;
657: curp->file = file;
658: curp->line = 1;
659:
660: mparse_buf_r(curp, blk, 1);
661:
662: if (0 == re && MANDOCLEVEL_FATAL > curp->file_status)
663: mparse_end(curp);
664:
665: curp->file = svfile;
666: }
667:
668: enum mandoclevel
669: mparse_readmem(struct mparse *curp, const void *buf, size_t len,
670: const char *file)
671: {
672: struct buf blk;
673:
674: blk.buf = UNCONST(buf);
675: blk.sz = len;
676:
677: mparse_parse_buffer(curp, blk, file, 0);
678: return(curp->file_status);
679: }
680:
681: static void
1.1 kristaps 682: mparse_readfd_r(struct mparse *curp, int fd, const char *file, int re)
683: {
1.28 joerg 684: struct buf blk;
685: int with_mmap;
1.1 kristaps 686:
687: if (-1 == fd)
688: if (-1 == (fd = open(file, O_RDONLY, 0))) {
689: perror(file);
690: curp->file_status = MANDOCLEVEL_SYSERR;
691: return;
692: }
1.28 joerg 693: /*
694: * Run for each opened file; may be called more than once for
695: * each full parse sequence if the opened file is nested (i.e.,
696: * from `so'). Simply sucks in the whole file and moves into
697: * the parse phase for the file.
698: */
1.1 kristaps 699:
1.28 joerg 700: if ( ! read_whole_file(file, fd, &blk, &with_mmap)) {
701: curp->file_status = MANDOCLEVEL_SYSERR;
702: return;
703: }
1.1 kristaps 704:
1.28 joerg 705: mparse_parse_buffer(curp, blk, file, re);
1.1 kristaps 706:
1.28 joerg 707: #ifdef HAVE_MMAP
708: if (with_mmap)
709: munmap(blk.buf, blk.sz);
710: else
711: #endif
712: free(blk.buf);
1.1 kristaps 713:
714: if (STDIN_FILENO != fd && -1 == close(fd))
715: perror(file);
716: }
717:
718: enum mandoclevel
719: mparse_readfd(struct mparse *curp, int fd, const char *file)
720: {
721:
722: mparse_readfd_r(curp, fd, file, 0);
723: return(curp->file_status);
724: }
725:
726: struct mparse *
1.29 schwarze 727: mparse_alloc(enum mparset inttype, enum mandoclevel wlevel,
728: mandocmsg mmsg, void *arg, char *defos)
1.1 kristaps 729: {
730: struct mparse *curp;
1.10 kristaps 731:
732: assert(wlevel <= MANDOCLEVEL_FATAL);
1.1 kristaps 733:
734: curp = mandoc_calloc(1, sizeof(struct mparse));
735:
1.3 kristaps 736: curp->wlevel = wlevel;
1.1 kristaps 737: curp->mmsg = mmsg;
738: curp->arg = arg;
739: curp->inttype = inttype;
1.29 schwarze 740: curp->defos = defos;
1.1 kristaps 741:
1.18 kristaps 742: curp->roff = roff_alloc(curp);
1.1 kristaps 743: return(curp);
744: }
745:
746: void
747: mparse_reset(struct mparse *curp)
748: {
749:
750: roff_reset(curp->roff);
751:
752: if (curp->mdoc)
753: mdoc_reset(curp->mdoc);
754: if (curp->man)
755: man_reset(curp->man);
1.24 kristaps 756: if (curp->secondary)
757: curp->secondary->sz = 0;
1.1 kristaps 758:
759: curp->file_status = MANDOCLEVEL_OK;
760: curp->mdoc = NULL;
761: curp->man = NULL;
762: }
763:
764: void
765: mparse_free(struct mparse *curp)
766: {
767:
768: if (curp->pmdoc)
769: mdoc_free(curp->pmdoc);
770: if (curp->pman)
771: man_free(curp->pman);
772: if (curp->roff)
773: roff_free(curp->roff);
1.24 kristaps 774: if (curp->secondary)
775: free(curp->secondary->buf);
1.1 kristaps 776:
1.24 kristaps 777: free(curp->secondary);
1.1 kristaps 778: free(curp);
779: }
780:
781: void
782: mparse_result(struct mparse *curp, struct mdoc **mdoc, struct man **man)
783: {
784:
1.9 kristaps 785: if (mdoc)
786: *mdoc = curp->mdoc;
787: if (man)
788: *man = curp->man;
1.3 kristaps 789: }
790:
791: void
792: mandoc_vmsg(enum mandocerr t, struct mparse *m,
793: int ln, int pos, const char *fmt, ...)
794: {
795: char buf[256];
796: va_list ap;
797:
798: va_start(ap, fmt);
799: vsnprintf(buf, sizeof(buf) - 1, fmt, ap);
800: va_end(ap);
801:
802: mandoc_msg(t, m, ln, pos, buf);
803: }
804:
805: void
806: mandoc_msg(enum mandocerr er, struct mparse *m,
807: int ln, int col, const char *msg)
808: {
809: enum mandoclevel level;
810:
811: level = MANDOCLEVEL_FATAL;
812: while (er < mandoclimits[level])
813: level--;
814:
815: if (level < m->wlevel)
816: return;
817:
1.8 kristaps 818: if (m->mmsg)
819: (*m->mmsg)(er, level, m->file, ln, col, msg);
1.3 kristaps 820:
821: if (m->file_status < level)
822: m->file_status = level;
1.7 kristaps 823: }
824:
825: const char *
826: mparse_strerror(enum mandocerr er)
827: {
828:
829: return(mandocerrs[er]);
830: }
831:
832: const char *
833: mparse_strlevel(enum mandoclevel lvl)
834: {
835: return(mandoclevels[lvl]);
1.24 kristaps 836: }
837:
838: void
839: mparse_keep(struct mparse *p)
840: {
841:
842: assert(NULL == p->secondary);
843: p->secondary = mandoc_calloc(1, sizeof(struct buf));
844: }
845:
846: const char *
847: mparse_getkeep(const struct mparse *p)
848: {
849:
850: assert(p->secondary);
851: return(p->secondary->sz ? p->secondary->buf : NULL);
1.1 kristaps 852: }
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