Annotation of mandoc/read.c, Revision 1.28
1.28 ! joerg 1: /* $Id: read.c,v 1.27 2012/02/05 16:46:15 joerg 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;
1.1 kristaps 69: };
70:
71: static void resize_buf(struct buf *, size_t);
72: static void mparse_buf_r(struct mparse *, struct buf, int);
73: static void mparse_readfd_r(struct mparse *, int, const char *, int);
74: static void pset(const char *, int, struct mparse *);
75: static int read_whole_file(const char *, int, struct buf *, int *);
76: static void mparse_end(struct mparse *);
77:
1.3 kristaps 78: static const enum mandocerr mandoclimits[MANDOCLEVEL_MAX] = {
79: MANDOCERR_OK,
80: MANDOCERR_WARNING,
81: MANDOCERR_WARNING,
82: MANDOCERR_ERROR,
83: MANDOCERR_FATAL,
84: MANDOCERR_MAX,
85: MANDOCERR_MAX
86: };
87:
1.7 kristaps 88: static const char * const mandocerrs[MANDOCERR_MAX] = {
89: "ok",
90:
91: "generic warning",
92:
93: /* related to the prologue */
94: "no title in document",
95: "document title should be all caps",
96: "unknown manual section",
97: "date missing, using today's date",
98: "cannot parse date, using it verbatim",
99: "prologue macros out of order",
100: "duplicate prologue macro",
101: "macro not allowed in prologue",
102: "macro not allowed in body",
103:
104: /* related to document structure */
105: ".so is fragile, better use ln(1)",
106: "NAME section must come first",
107: "bad NAME section contents",
108: "manual name not yet set",
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",
116: "skipping no-space macro",
117: "blocks badly nested",
118: "child violates parent syntax",
119: "nested displays are not portable",
120: "already in literal mode",
121: "line scope broken",
122:
123: /* related to missing macro arguments */
124: "skipping empty macro",
125: "argument count wrong",
126: "missing display type",
127: "list type must come first",
128: "tag lists require a width argument",
129: "missing font type",
130: "skipping end of block that is not open",
131:
132: /* related to bad macro arguments */
133: "skipping argument",
134: "duplicate argument",
135: "duplicate display type",
136: "duplicate list type",
137: "unknown AT&T UNIX version",
138: "bad Boolean value",
139: "unknown font",
140: "unknown standard specifier",
141: "bad width argument",
142:
143: /* related to plain text */
144: "blank line in non-literal context",
145: "tab in non-literal context",
146: "end of line whitespace",
147: "bad comment style",
1.12 kristaps 148: "bad escape sequence",
1.7 kristaps 149: "unterminated quoted string",
1.16 kristaps 150:
151: /* related to equations */
152: "unexpected literal in equation",
1.7 kristaps 153:
154: "generic error",
1.17 kristaps 155:
156: /* related to equations */
1.20 kristaps 157: "unexpected equation scope closure",
158: "equation scope open on exit",
1.21 kristaps 159: "overlapping equation scopes",
160: "unexpected end of equation",
161: "equation syntax error",
1.7 kristaps 162:
163: /* related to tables */
164: "bad table syntax",
165: "bad table option",
166: "bad table layout",
167: "no table layout cells specified",
168: "no table data cells specified",
169: "ignore data in cell",
170: "data block still open",
171: "ignoring extra data cells",
172:
173: "input stack limit exceeded, infinite loop?",
174: "skipping bad character",
175: "escaped character not allowed in a name",
176: "skipping text before the first section header",
177: "skipping unknown macro",
178: "NOT IMPLEMENTED, please use groff: skipping request",
179: "argument count wrong",
180: "skipping end of block that is not open",
181: "missing end of block",
182: "scope open on exit",
183: "uname(3) system call failed",
184: "macro requires line argument(s)",
185: "macro requires body argument(s)",
186: "macro requires argument(s)",
187: "missing list type",
188: "line argument(s) will be lost",
189: "body argument(s) will be lost",
190:
191: "generic fatal error",
192:
193: "not a manual",
194: "column syntax is inconsistent",
195: "NOT IMPLEMENTED: .Bd -file",
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,
1.27 joerg 329: * I'll be helpful and replace these characters
330: * with "?", so we don't display gibberish.
331: * Note to manual writers: use special characters.
1.1 kristaps 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,
1.27 joerg 339: curp->line, pos, NULL);
1.1 kristaps 340: i++;
1.27 joerg 341: if (pos >= (int)ln.sz)
342: resize_buf(&ln, 256);
343: ln.buf[pos++] = '?';
1.1 kristaps 344: continue;
345: }
346:
347: /* Trailing backslash = a plain char. */
348:
349: if ('\\' != blk.buf[i] || i + 1 == (int)blk.sz) {
350: if (pos >= (int)ln.sz)
351: resize_buf(&ln, 256);
352: ln.buf[pos++] = blk.buf[i++];
353: continue;
354: }
355:
356: /*
357: * Found escape and at least one other character.
358: * When it's a newline character, skip it.
359: * When there is a carriage return in between,
360: * skip that one as well.
361: */
362:
363: if ('\r' == blk.buf[i + 1] && i + 2 < (int)blk.sz &&
364: '\n' == blk.buf[i + 2])
365: ++i;
366: if ('\n' == blk.buf[i + 1]) {
367: i += 2;
368: ++lnn;
369: continue;
370: }
371:
1.13 kristaps 372: if ('"' == blk.buf[i + 1] || '#' == blk.buf[i + 1]) {
1.1 kristaps 373: i += 2;
374: /* Comment, skip to end of line */
375: for (; i < (int)blk.sz; ++i) {
376: if ('\n' == blk.buf[i]) {
377: ++i;
378: ++lnn;
379: break;
380: }
381: }
382:
383: /* Backout trailing whitespaces */
384: for (; pos > 0; --pos) {
385: if (ln.buf[pos - 1] != ' ')
386: break;
387: if (pos > 2 && ln.buf[pos - 2] == '\\')
388: break;
389: }
390: break;
391: }
392:
393: /* Some other escape sequence, copy & cont. */
394:
395: if (pos + 1 >= (int)ln.sz)
396: resize_buf(&ln, 256);
397:
398: ln.buf[pos++] = blk.buf[i++];
399: ln.buf[pos++] = blk.buf[i++];
400: }
401:
402: if (pos >= (int)ln.sz)
403: resize_buf(&ln, 256);
404:
405: ln.buf[pos] = '\0';
406:
407: /*
408: * A significant amount of complexity is contained by
409: * the roff preprocessor. It's line-oriented but can be
410: * expressed on one line, so we need at times to
411: * readjust our starting point and re-run it. The roff
412: * preprocessor can also readjust the buffers with new
413: * data, so we pass them in wholesale.
414: */
415:
416: of = 0;
417:
1.24 kristaps 418: /*
419: * Maintain a lookaside buffer of all parsed lines. We
420: * only do this if mparse_keep() has been invoked (the
421: * buffer may be accessed with mparse_getkeep()).
422: */
423:
424: if (curp->secondary) {
425: curp->secondary->buf =
426: mandoc_realloc
427: (curp->secondary->buf,
428: curp->secondary->sz + pos + 2);
429: memcpy(curp->secondary->buf +
430: curp->secondary->sz,
431: ln.buf, pos);
432: curp->secondary->sz += pos;
433: curp->secondary->buf
434: [curp->secondary->sz] = '\n';
435: curp->secondary->sz++;
436: curp->secondary->buf
437: [curp->secondary->sz] = '\0';
438: }
1.1 kristaps 439: rerun:
440: rr = roff_parseln
441: (curp->roff, curp->line,
442: &ln.buf, &ln.sz, of, &of);
443:
444: switch (rr) {
445: case (ROFF_REPARSE):
446: if (REPARSE_LIMIT >= ++curp->reparse_count)
447: mparse_buf_r(curp, ln, 0);
448: else
1.3 kristaps 449: mandoc_msg(MANDOCERR_ROFFLOOP, curp,
1.1 kristaps 450: curp->line, pos, NULL);
451: pos = 0;
452: continue;
453: case (ROFF_APPEND):
454: pos = (int)strlen(ln.buf);
455: continue;
456: case (ROFF_RERUN):
457: goto rerun;
458: case (ROFF_IGN):
459: pos = 0;
460: continue;
461: case (ROFF_ERR):
462: assert(MANDOCLEVEL_FATAL <= curp->file_status);
463: break;
464: case (ROFF_SO):
1.24 kristaps 465: /*
466: * We remove `so' clauses from our lookaside
467: * buffer because we're going to descend into
468: * the file recursively.
469: */
1.25 kristaps 470: if (curp->secondary)
471: curp->secondary->sz -= pos + 1;
1.1 kristaps 472: mparse_readfd_r(curp, -1, ln.buf + of, 1);
473: if (MANDOCLEVEL_FATAL <= curp->file_status)
474: break;
475: pos = 0;
476: continue;
477: default:
478: break;
479: }
480:
481: /*
482: * If we encounter errors in the recursive parse, make
483: * sure we don't continue parsing.
484: */
485:
486: if (MANDOCLEVEL_FATAL <= curp->file_status)
487: break;
488:
489: /*
490: * If input parsers have not been allocated, do so now.
1.14 kristaps 491: * We keep these instanced between parsers, but set them
1.1 kristaps 492: * locally per parse routine since we can use different
493: * parsers with each one.
494: */
495:
496: if ( ! (curp->man || curp->mdoc))
497: pset(ln.buf + of, pos - of, curp);
498:
499: /*
500: * Lastly, push down into the parsers themselves. One
501: * of these will have already been set in the pset()
502: * routine.
503: * If libroff returns ROFF_TBL, then add it to the
504: * currently open parse. Since we only get here if
505: * there does exist data (see tbl_data.c), we're
506: * guaranteed that something's been allocated.
507: * Do the same for ROFF_EQN.
508: */
509:
510: rc = -1;
511:
512: if (ROFF_TBL == rr)
513: while (NULL != (span = roff_span(curp->roff))) {
514: rc = curp->man ?
515: man_addspan(curp->man, span) :
516: mdoc_addspan(curp->mdoc, span);
517: if (0 == rc)
518: break;
519: }
520: else if (ROFF_EQN == rr)
521: rc = curp->mdoc ?
522: mdoc_addeqn(curp->mdoc,
523: roff_eqn(curp->roff)) :
524: man_addeqn(curp->man,
525: roff_eqn(curp->roff));
526: else if (curp->man || curp->mdoc)
527: rc = curp->man ?
528: man_parseln(curp->man,
529: curp->line, ln.buf, of) :
530: mdoc_parseln(curp->mdoc,
531: curp->line, ln.buf, of);
532:
533: if (0 == rc) {
534: assert(MANDOCLEVEL_FATAL <= curp->file_status);
535: break;
536: }
537:
538: /* Temporary buffers typically are not full. */
539:
540: if (0 == start && '\0' == blk.buf[i])
541: break;
542:
543: /* Start the next input line. */
544:
545: pos = 0;
546: }
547:
548: free(ln.buf);
549: }
550:
551: static int
552: read_whole_file(const char *file, int fd, struct buf *fb, int *with_mmap)
553: {
554: size_t off;
555: ssize_t ssz;
556:
1.15 kristaps 557: #ifdef HAVE_MMAP
558: struct stat st;
1.1 kristaps 559: if (-1 == fstat(fd, &st)) {
560: perror(file);
561: return(0);
562: }
563:
564: /*
565: * If we're a regular file, try just reading in the whole entry
566: * via mmap(). This is faster than reading it into blocks, and
567: * since each file is only a few bytes to begin with, I'm not
568: * concerned that this is going to tank any machines.
569: */
570:
571: if (S_ISREG(st.st_mode)) {
572: if (st.st_size >= (1U << 31)) {
573: fprintf(stderr, "%s: input too large\n", file);
574: return(0);
575: }
576: *with_mmap = 1;
577: fb->sz = (size_t)st.st_size;
578: fb->buf = mmap(NULL, fb->sz, PROT_READ,
579: MAP_FILE|MAP_SHARED, fd, 0);
580: if (fb->buf != MAP_FAILED)
581: return(1);
582: }
1.15 kristaps 583: #endif
1.1 kristaps 584:
585: /*
586: * If this isn't a regular file (like, say, stdin), then we must
587: * go the old way and just read things in bit by bit.
588: */
589:
590: *with_mmap = 0;
591: off = 0;
592: fb->sz = 0;
593: fb->buf = NULL;
594: for (;;) {
595: if (off == fb->sz) {
596: if (fb->sz == (1U << 31)) {
597: fprintf(stderr, "%s: input too large\n", file);
598: break;
599: }
600: resize_buf(fb, 65536);
601: }
602: ssz = read(fd, fb->buf + (int)off, fb->sz - off);
603: if (ssz == 0) {
604: fb->sz = off;
605: return(1);
606: }
607: if (ssz == -1) {
608: perror(file);
609: break;
610: }
611: off += (size_t)ssz;
612: }
613:
614: free(fb->buf);
615: fb->buf = NULL;
616: return(0);
617: }
618:
619: static void
620: mparse_end(struct mparse *curp)
621: {
622:
623: if (MANDOCLEVEL_FATAL <= curp->file_status)
624: return;
625:
626: if (curp->mdoc && ! mdoc_endparse(curp->mdoc)) {
627: assert(MANDOCLEVEL_FATAL <= curp->file_status);
628: return;
629: }
630:
631: if (curp->man && ! man_endparse(curp->man)) {
632: assert(MANDOCLEVEL_FATAL <= curp->file_status);
633: return;
634: }
635:
636: if ( ! (curp->man || curp->mdoc)) {
1.6 kristaps 637: mandoc_msg(MANDOCERR_NOTMANUAL, curp, 1, 0, NULL);
1.1 kristaps 638: curp->file_status = MANDOCLEVEL_FATAL;
1.6 kristaps 639: return;
1.1 kristaps 640: }
641:
642: roff_endparse(curp->roff);
643: }
644:
645: static void
1.28 ! joerg 646: mparse_parse_buffer(struct mparse *curp, struct buf blk, const char *file,
! 647: int re)
! 648: {
! 649: const char *svfile;
! 650:
! 651: /* Line number is per-file. */
! 652: svfile = curp->file;
! 653: curp->file = file;
! 654: curp->line = 1;
! 655:
! 656: mparse_buf_r(curp, blk, 1);
! 657:
! 658: if (0 == re && MANDOCLEVEL_FATAL > curp->file_status)
! 659: mparse_end(curp);
! 660:
! 661: curp->file = svfile;
! 662: }
! 663:
! 664: enum mandoclevel
! 665: mparse_readmem(struct mparse *curp, const void *buf, size_t len,
! 666: const char *file)
! 667: {
! 668: struct buf blk;
! 669:
! 670: blk.buf = UNCONST(buf);
! 671: blk.sz = len;
! 672:
! 673: mparse_parse_buffer(curp, blk, file, 0);
! 674: return(curp->file_status);
! 675: }
! 676:
! 677: static void
1.1 kristaps 678: mparse_readfd_r(struct mparse *curp, int fd, const char *file, int re)
679: {
1.28 ! joerg 680: struct buf blk;
! 681: int with_mmap;
1.1 kristaps 682:
683: if (-1 == fd)
684: if (-1 == (fd = open(file, O_RDONLY, 0))) {
685: perror(file);
686: curp->file_status = MANDOCLEVEL_SYSERR;
687: return;
688: }
1.28 ! joerg 689: /*
! 690: * Run for each opened file; may be called more than once for
! 691: * each full parse sequence if the opened file is nested (i.e.,
! 692: * from `so'). Simply sucks in the whole file and moves into
! 693: * the parse phase for the file.
! 694: */
1.1 kristaps 695:
1.28 ! joerg 696: if ( ! read_whole_file(file, fd, &blk, &with_mmap)) {
! 697: curp->file_status = MANDOCLEVEL_SYSERR;
! 698: return;
! 699: }
1.1 kristaps 700:
1.28 ! joerg 701: mparse_parse_buffer(curp, blk, file, re);
1.1 kristaps 702:
1.28 ! joerg 703: #ifdef HAVE_MMAP
! 704: if (with_mmap)
! 705: munmap(blk.buf, blk.sz);
! 706: else
! 707: #endif
! 708: free(blk.buf);
1.1 kristaps 709:
710: if (STDIN_FILENO != fd && -1 == close(fd))
711: perror(file);
712: }
713:
714: enum mandoclevel
715: mparse_readfd(struct mparse *curp, int fd, const char *file)
716: {
717:
718: mparse_readfd_r(curp, fd, file, 0);
719: return(curp->file_status);
720: }
721:
722: struct mparse *
1.4 kristaps 723: mparse_alloc(enum mparset inttype, enum mandoclevel wlevel, mandocmsg mmsg, void *arg)
1.1 kristaps 724: {
725: struct mparse *curp;
1.10 kristaps 726:
727: assert(wlevel <= MANDOCLEVEL_FATAL);
1.1 kristaps 728:
729: curp = mandoc_calloc(1, sizeof(struct mparse));
730:
1.3 kristaps 731: curp->wlevel = wlevel;
1.1 kristaps 732: curp->mmsg = mmsg;
733: curp->arg = arg;
734: curp->inttype = inttype;
735:
1.18 kristaps 736: curp->roff = roff_alloc(curp);
1.1 kristaps 737: return(curp);
738: }
739:
740: void
741: mparse_reset(struct mparse *curp)
742: {
743:
744: roff_reset(curp->roff);
745:
746: if (curp->mdoc)
747: mdoc_reset(curp->mdoc);
748: if (curp->man)
749: man_reset(curp->man);
1.24 kristaps 750: if (curp->secondary)
751: curp->secondary->sz = 0;
1.1 kristaps 752:
753: curp->file_status = MANDOCLEVEL_OK;
754: curp->mdoc = NULL;
755: curp->man = NULL;
756: }
757:
758: void
759: mparse_free(struct mparse *curp)
760: {
761:
762: if (curp->pmdoc)
763: mdoc_free(curp->pmdoc);
764: if (curp->pman)
765: man_free(curp->pman);
766: if (curp->roff)
767: roff_free(curp->roff);
1.24 kristaps 768: if (curp->secondary)
769: free(curp->secondary->buf);
1.1 kristaps 770:
1.24 kristaps 771: free(curp->secondary);
1.1 kristaps 772: free(curp);
773: }
774:
775: void
776: mparse_result(struct mparse *curp, struct mdoc **mdoc, struct man **man)
777: {
778:
1.9 kristaps 779: if (mdoc)
780: *mdoc = curp->mdoc;
781: if (man)
782: *man = curp->man;
1.3 kristaps 783: }
784:
785: void
786: mandoc_vmsg(enum mandocerr t, struct mparse *m,
787: int ln, int pos, const char *fmt, ...)
788: {
789: char buf[256];
790: va_list ap;
791:
792: va_start(ap, fmt);
793: vsnprintf(buf, sizeof(buf) - 1, fmt, ap);
794: va_end(ap);
795:
796: mandoc_msg(t, m, ln, pos, buf);
797: }
798:
799: void
800: mandoc_msg(enum mandocerr er, struct mparse *m,
801: int ln, int col, const char *msg)
802: {
803: enum mandoclevel level;
804:
805: level = MANDOCLEVEL_FATAL;
806: while (er < mandoclimits[level])
807: level--;
808:
809: if (level < m->wlevel)
810: return;
811:
1.8 kristaps 812: if (m->mmsg)
813: (*m->mmsg)(er, level, m->file, ln, col, msg);
1.3 kristaps 814:
815: if (m->file_status < level)
816: m->file_status = level;
1.7 kristaps 817: }
818:
819: const char *
820: mparse_strerror(enum mandocerr er)
821: {
822:
823: return(mandocerrs[er]);
824: }
825:
826: const char *
827: mparse_strlevel(enum mandoclevel lvl)
828: {
829: return(mandoclevels[lvl]);
1.24 kristaps 830: }
831:
832: void
833: mparse_keep(struct mparse *p)
834: {
835:
836: assert(NULL == p->secondary);
837: p->secondary = mandoc_calloc(1, sizeof(struct buf));
838: }
839:
840: const char *
841: mparse_getkeep(const struct mparse *p)
842: {
843:
844: assert(p->secondary);
845: return(p->secondary->sz ? p->secondary->buf : NULL);
1.1 kristaps 846: }
CVSweb