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1.32 ! schwarze 1: /* $Id: read.c,v 1.31 2012/07/18 11:11:12 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",
1.32 ! schwarze 98: "unknown manual volume or arch",
1.7 kristaps 99: "date missing, using today's date",
100: "cannot parse date, using it verbatim",
101: "prologue macros out of order",
102: "duplicate prologue macro",
103: "macro not allowed in prologue",
104: "macro not allowed in body",
105:
106: /* related to document structure */
107: ".so is fragile, better use ln(1)",
108: "NAME section must come first",
109: "bad NAME section contents",
110: "sections out of conventional order",
111: "duplicate section name",
112: "section not in conventional manual section",
113:
114: /* related to macros and nesting */
115: "skipping obsolete macro",
116: "skipping paragraph macro",
1.31 schwarze 117: "moving paragraph macro out of list",
1.7 kristaps 118: "skipping no-space macro",
119: "blocks badly nested",
120: "child violates parent syntax",
121: "nested displays are not portable",
122: "already in literal mode",
123: "line scope broken",
124:
125: /* related to missing macro arguments */
126: "skipping empty macro",
127: "argument count wrong",
128: "missing display type",
129: "list type must come first",
130: "tag lists require a width argument",
131: "missing font type",
132: "skipping end of block that is not open",
133:
134: /* related to bad macro arguments */
135: "skipping argument",
136: "duplicate argument",
137: "duplicate display type",
138: "duplicate list type",
139: "unknown AT&T UNIX version",
140: "bad Boolean value",
141: "unknown font",
142: "unknown standard specifier",
143: "bad width argument",
144:
145: /* related to plain text */
146: "blank line in non-literal context",
147: "tab in non-literal context",
148: "end of line whitespace",
149: "bad comment style",
1.12 kristaps 150: "bad escape sequence",
1.7 kristaps 151: "unterminated quoted string",
1.16 kristaps 152:
153: /* related to equations */
154: "unexpected literal in equation",
1.7 kristaps 155:
156: "generic error",
1.17 kristaps 157:
158: /* related to equations */
1.20 kristaps 159: "unexpected equation scope closure",
160: "equation scope open on exit",
1.21 kristaps 161: "overlapping equation scopes",
162: "unexpected end of equation",
163: "equation syntax error",
1.7 kristaps 164:
165: /* related to tables */
166: "bad table syntax",
167: "bad table option",
168: "bad table layout",
169: "no table layout cells specified",
170: "no table data cells specified",
171: "ignore data in cell",
172: "data block still open",
173: "ignoring extra data cells",
174:
175: "input stack limit exceeded, infinite loop?",
176: "skipping bad character",
177: "escaped character not allowed in a name",
1.30 schwarze 178: "manual name not yet set",
1.7 kristaps 179: "skipping text before the first section header",
180: "skipping unknown macro",
181: "NOT IMPLEMENTED, please use groff: skipping request",
182: "argument count wrong",
183: "skipping end of block that is not open",
184: "missing end of block",
185: "scope open on exit",
186: "uname(3) system call failed",
187: "macro requires line argument(s)",
188: "macro requires body argument(s)",
189: "macro requires argument(s)",
190: "missing list type",
191: "line argument(s) will be lost",
192: "body argument(s) will be lost",
193:
194: "generic fatal error",
195:
196: "not a manual",
197: "column syntax is inconsistent",
198: "NOT IMPLEMENTED: .Bd -file",
199: "argument count wrong, violates syntax",
200: "child violates parent syntax",
201: "argument count wrong, violates syntax",
202: "NOT IMPLEMENTED: .so with absolute path or \"..\"",
203: "no document body",
204: "no document prologue",
205: "static buffer exhausted",
206: };
207:
208: static const char * const mandoclevels[MANDOCLEVEL_MAX] = {
209: "SUCCESS",
210: "RESERVED",
211: "WARNING",
212: "ERROR",
213: "FATAL",
214: "BADARG",
215: "SYSERR"
216: };
217:
1.1 kristaps 218: static void
219: resize_buf(struct buf *buf, size_t initial)
220: {
221:
222: buf->sz = buf->sz > initial/2 ? 2 * buf->sz : initial;
223: buf->buf = mandoc_realloc(buf->buf, buf->sz);
224: }
225:
226: static void
227: pset(const char *buf, int pos, struct mparse *curp)
228: {
229: int i;
230:
231: /*
232: * Try to intuit which kind of manual parser should be used. If
233: * passed in by command-line (-man, -mdoc), then use that
234: * explicitly. If passed as -mandoc, then try to guess from the
235: * line: either skip dot-lines, use -mdoc when finding `.Dt', or
236: * default to -man, which is more lenient.
237: *
238: * Separate out pmdoc/pman from mdoc/man: the first persists
239: * through all parsers, while the latter is used per-parse.
240: */
241:
242: if ('.' == buf[0] || '\'' == buf[0]) {
243: for (i = 1; buf[i]; i++)
244: if (' ' != buf[i] && '\t' != buf[i])
245: break;
246: if ('\0' == buf[i])
247: return;
248: }
249:
250: switch (curp->inttype) {
251: case (MPARSE_MDOC):
252: if (NULL == curp->pmdoc)
1.29 schwarze 253: curp->pmdoc = mdoc_alloc(curp->roff, curp,
254: curp->defos);
1.1 kristaps 255: assert(curp->pmdoc);
256: curp->mdoc = curp->pmdoc;
257: return;
258: case (MPARSE_MAN):
259: if (NULL == curp->pman)
1.18 kristaps 260: curp->pman = man_alloc(curp->roff, curp);
1.1 kristaps 261: assert(curp->pman);
262: curp->man = curp->pman;
263: return;
264: default:
265: break;
266: }
267:
268: if (pos >= 3 && 0 == memcmp(buf, ".Dd", 3)) {
269: if (NULL == curp->pmdoc)
1.29 schwarze 270: curp->pmdoc = mdoc_alloc(curp->roff, curp,
271: curp->defos);
1.1 kristaps 272: assert(curp->pmdoc);
273: curp->mdoc = curp->pmdoc;
274: return;
275: }
276:
277: if (NULL == curp->pman)
1.18 kristaps 278: curp->pman = man_alloc(curp->roff, curp);
1.1 kristaps 279: assert(curp->pman);
280: curp->man = curp->pman;
281: }
282:
283: /*
284: * Main parse routine for an opened file. This is called for each
285: * opened file and simply loops around the full input file, possibly
286: * nesting (i.e., with `so').
287: */
288: static void
289: mparse_buf_r(struct mparse *curp, struct buf blk, int start)
290: {
291: const struct tbl_span *span;
292: struct buf ln;
293: enum rofferr rr;
294: int i, of, rc;
295: int pos; /* byte number in the ln buffer */
296: int lnn; /* line number in the real file */
297: unsigned char c;
298:
299: memset(&ln, 0, sizeof(struct buf));
300:
301: lnn = curp->line;
302: pos = 0;
303:
304: for (i = 0; i < (int)blk.sz; ) {
305: if (0 == pos && '\0' == blk.buf[i])
306: break;
307:
308: if (start) {
309: curp->line = lnn;
310: curp->reparse_count = 0;
311: }
312:
313: while (i < (int)blk.sz && (start || '\0' != blk.buf[i])) {
314:
315: /*
316: * When finding an unescaped newline character,
317: * leave the character loop to process the line.
318: * Skip a preceding carriage return, if any.
319: */
320:
321: if ('\r' == blk.buf[i] && i + 1 < (int)blk.sz &&
322: '\n' == blk.buf[i + 1])
323: ++i;
324: if ('\n' == blk.buf[i]) {
325: ++i;
326: ++lnn;
327: break;
328: }
329:
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,
1.27 joerg 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 kristaps 337: */
338:
339: c = (unsigned char) blk.buf[i];
340:
341: if ( ! (isascii(c) &&
342: (isgraph(c) || isblank(c)))) {
1.3 kristaps 343: mandoc_msg(MANDOCERR_BADCHAR, curp,
1.27 joerg 344: curp->line, pos, NULL);
1.1 kristaps 345: i++;
1.27 joerg 346: if (pos >= (int)ln.sz)
347: resize_buf(&ln, 256);
348: ln.buf[pos++] = '?';
1.1 kristaps 349: continue;
350: }
351:
352: /* Trailing backslash = a plain char. */
353:
354: if ('\\' != blk.buf[i] || i + 1 == (int)blk.sz) {
355: if (pos >= (int)ln.sz)
356: resize_buf(&ln, 256);
357: ln.buf[pos++] = blk.buf[i++];
358: continue;
359: }
360:
361: /*
362: * Found escape and at least one other character.
363: * When it's a newline character, skip it.
364: * When there is a carriage return in between,
365: * skip that one as well.
366: */
367:
368: if ('\r' == blk.buf[i + 1] && i + 2 < (int)blk.sz &&
369: '\n' == blk.buf[i + 2])
370: ++i;
371: if ('\n' == blk.buf[i + 1]) {
372: i += 2;
373: ++lnn;
374: continue;
375: }
376:
1.13 kristaps 377: if ('"' == blk.buf[i + 1] || '#' == blk.buf[i + 1]) {
1.1 kristaps 378: i += 2;
379: /* Comment, skip to end of line */
380: for (; i < (int)blk.sz; ++i) {
381: if ('\n' == blk.buf[i]) {
382: ++i;
383: ++lnn;
384: break;
385: }
386: }
387:
388: /* Backout trailing whitespaces */
389: for (; pos > 0; --pos) {
390: if (ln.buf[pos - 1] != ' ')
391: break;
392: if (pos > 2 && ln.buf[pos - 2] == '\\')
393: break;
394: }
395: break;
396: }
397:
398: /* Some other escape sequence, copy & cont. */
399:
400: if (pos + 1 >= (int)ln.sz)
401: resize_buf(&ln, 256);
402:
403: ln.buf[pos++] = blk.buf[i++];
404: ln.buf[pos++] = blk.buf[i++];
405: }
406:
407: if (pos >= (int)ln.sz)
408: resize_buf(&ln, 256);
409:
410: ln.buf[pos] = '\0';
411:
412: /*
413: * A significant amount of complexity is contained by
414: * the roff preprocessor. It's line-oriented but can be
415: * expressed on one line, so we need at times to
416: * readjust our starting point and re-run it. The roff
417: * preprocessor can also readjust the buffers with new
418: * data, so we pass them in wholesale.
419: */
420:
421: of = 0;
422:
1.24 kristaps 423: /*
424: * Maintain a lookaside buffer of all parsed lines. We
425: * only do this if mparse_keep() has been invoked (the
426: * buffer may be accessed with mparse_getkeep()).
427: */
428:
429: if (curp->secondary) {
430: curp->secondary->buf =
431: mandoc_realloc
432: (curp->secondary->buf,
433: curp->secondary->sz + pos + 2);
434: memcpy(curp->secondary->buf +
435: curp->secondary->sz,
436: ln.buf, pos);
437: curp->secondary->sz += pos;
438: curp->secondary->buf
439: [curp->secondary->sz] = '\n';
440: curp->secondary->sz++;
441: curp->secondary->buf
442: [curp->secondary->sz] = '\0';
443: }
1.1 kristaps 444: rerun:
445: rr = roff_parseln
446: (curp->roff, curp->line,
447: &ln.buf, &ln.sz, of, &of);
448:
449: switch (rr) {
450: case (ROFF_REPARSE):
451: if (REPARSE_LIMIT >= ++curp->reparse_count)
452: mparse_buf_r(curp, ln, 0);
453: else
1.3 kristaps 454: mandoc_msg(MANDOCERR_ROFFLOOP, curp,
1.1 kristaps 455: curp->line, pos, NULL);
456: pos = 0;
457: continue;
458: case (ROFF_APPEND):
459: pos = (int)strlen(ln.buf);
460: continue;
461: case (ROFF_RERUN):
462: goto rerun;
463: case (ROFF_IGN):
464: pos = 0;
465: continue;
466: case (ROFF_ERR):
467: assert(MANDOCLEVEL_FATAL <= curp->file_status);
468: break;
469: case (ROFF_SO):
1.24 kristaps 470: /*
471: * We remove `so' clauses from our lookaside
472: * buffer because we're going to descend into
473: * the file recursively.
474: */
1.25 kristaps 475: if (curp->secondary)
476: curp->secondary->sz -= pos + 1;
1.1 kristaps 477: mparse_readfd_r(curp, -1, ln.buf + of, 1);
478: if (MANDOCLEVEL_FATAL <= curp->file_status)
479: break;
480: pos = 0;
481: continue;
482: default:
483: break;
484: }
485:
486: /*
487: * If we encounter errors in the recursive parse, make
488: * sure we don't continue parsing.
489: */
490:
491: if (MANDOCLEVEL_FATAL <= curp->file_status)
492: break;
493:
494: /*
495: * If input parsers have not been allocated, do so now.
1.14 kristaps 496: * We keep these instanced between parsers, but set them
1.1 kristaps 497: * locally per parse routine since we can use different
498: * parsers with each one.
499: */
500:
501: if ( ! (curp->man || curp->mdoc))
502: pset(ln.buf + of, pos - of, curp);
503:
504: /*
505: * Lastly, push down into the parsers themselves. One
506: * of these will have already been set in the pset()
507: * routine.
508: * If libroff returns ROFF_TBL, then add it to the
509: * currently open parse. Since we only get here if
510: * there does exist data (see tbl_data.c), we're
511: * guaranteed that something's been allocated.
512: * Do the same for ROFF_EQN.
513: */
514:
515: rc = -1;
516:
517: if (ROFF_TBL == rr)
518: while (NULL != (span = roff_span(curp->roff))) {
519: rc = curp->man ?
520: man_addspan(curp->man, span) :
521: mdoc_addspan(curp->mdoc, span);
522: if (0 == rc)
523: break;
524: }
525: else if (ROFF_EQN == rr)
526: rc = curp->mdoc ?
527: mdoc_addeqn(curp->mdoc,
528: roff_eqn(curp->roff)) :
529: man_addeqn(curp->man,
530: roff_eqn(curp->roff));
531: else if (curp->man || curp->mdoc)
532: rc = curp->man ?
533: man_parseln(curp->man,
534: curp->line, ln.buf, of) :
535: mdoc_parseln(curp->mdoc,
536: curp->line, ln.buf, of);
537:
538: if (0 == rc) {
539: assert(MANDOCLEVEL_FATAL <= curp->file_status);
540: break;
541: }
542:
543: /* Temporary buffers typically are not full. */
544:
545: if (0 == start && '\0' == blk.buf[i])
546: break;
547:
548: /* Start the next input line. */
549:
550: pos = 0;
551: }
552:
553: free(ln.buf);
554: }
555:
556: static int
557: read_whole_file(const char *file, int fd, struct buf *fb, int *with_mmap)
558: {
559: size_t off;
560: ssize_t ssz;
561:
1.15 kristaps 562: #ifdef HAVE_MMAP
563: struct stat st;
1.1 kristaps 564: if (-1 == fstat(fd, &st)) {
565: perror(file);
566: return(0);
567: }
568:
569: /*
570: * If we're a regular file, try just reading in the whole entry
571: * via mmap(). This is faster than reading it into blocks, and
572: * since each file is only a few bytes to begin with, I'm not
573: * concerned that this is going to tank any machines.
574: */
575:
576: if (S_ISREG(st.st_mode)) {
577: if (st.st_size >= (1U << 31)) {
578: fprintf(stderr, "%s: input too large\n", file);
579: return(0);
580: }
581: *with_mmap = 1;
582: fb->sz = (size_t)st.st_size;
583: fb->buf = mmap(NULL, fb->sz, PROT_READ,
584: MAP_FILE|MAP_SHARED, fd, 0);
585: if (fb->buf != MAP_FAILED)
586: return(1);
587: }
1.15 kristaps 588: #endif
1.1 kristaps 589:
590: /*
591: * If this isn't a regular file (like, say, stdin), then we must
592: * go the old way and just read things in bit by bit.
593: */
594:
595: *with_mmap = 0;
596: off = 0;
597: fb->sz = 0;
598: fb->buf = NULL;
599: for (;;) {
600: if (off == fb->sz) {
601: if (fb->sz == (1U << 31)) {
602: fprintf(stderr, "%s: input too large\n", file);
603: break;
604: }
605: resize_buf(fb, 65536);
606: }
607: ssz = read(fd, fb->buf + (int)off, fb->sz - off);
608: if (ssz == 0) {
609: fb->sz = off;
610: return(1);
611: }
612: if (ssz == -1) {
613: perror(file);
614: break;
615: }
616: off += (size_t)ssz;
617: }
618:
619: free(fb->buf);
620: fb->buf = NULL;
621: return(0);
622: }
623:
624: static void
625: mparse_end(struct mparse *curp)
626: {
627:
628: if (MANDOCLEVEL_FATAL <= curp->file_status)
629: return;
630:
631: if (curp->mdoc && ! mdoc_endparse(curp->mdoc)) {
632: assert(MANDOCLEVEL_FATAL <= curp->file_status);
633: return;
634: }
635:
636: if (curp->man && ! man_endparse(curp->man)) {
637: assert(MANDOCLEVEL_FATAL <= curp->file_status);
638: return;
639: }
640:
641: if ( ! (curp->man || curp->mdoc)) {
1.6 kristaps 642: mandoc_msg(MANDOCERR_NOTMANUAL, curp, 1, 0, NULL);
1.1 kristaps 643: curp->file_status = MANDOCLEVEL_FATAL;
1.6 kristaps 644: return;
1.1 kristaps 645: }
646:
647: roff_endparse(curp->roff);
648: }
649:
650: static void
1.28 joerg 651: mparse_parse_buffer(struct mparse *curp, struct buf blk, const char *file,
652: int re)
653: {
654: const char *svfile;
655:
656: /* Line number is per-file. */
657: svfile = curp->file;
658: curp->file = file;
659: curp->line = 1;
660:
661: mparse_buf_r(curp, blk, 1);
662:
663: if (0 == re && MANDOCLEVEL_FATAL > curp->file_status)
664: mparse_end(curp);
665:
666: curp->file = svfile;
667: }
668:
669: enum mandoclevel
670: mparse_readmem(struct mparse *curp, const void *buf, size_t len,
671: const char *file)
672: {
673: struct buf blk;
674:
675: blk.buf = UNCONST(buf);
676: blk.sz = len;
677:
678: mparse_parse_buffer(curp, blk, file, 0);
679: return(curp->file_status);
680: }
681:
682: static void
1.1 kristaps 683: mparse_readfd_r(struct mparse *curp, int fd, const char *file, int re)
684: {
1.28 joerg 685: struct buf blk;
686: int with_mmap;
1.1 kristaps 687:
688: if (-1 == fd)
689: if (-1 == (fd = open(file, O_RDONLY, 0))) {
690: perror(file);
691: curp->file_status = MANDOCLEVEL_SYSERR;
692: return;
693: }
1.28 joerg 694: /*
695: * Run for each opened file; may be called more than once for
696: * each full parse sequence if the opened file is nested (i.e.,
697: * from `so'). Simply sucks in the whole file and moves into
698: * the parse phase for the file.
699: */
1.1 kristaps 700:
1.28 joerg 701: if ( ! read_whole_file(file, fd, &blk, &with_mmap)) {
702: curp->file_status = MANDOCLEVEL_SYSERR;
703: return;
704: }
1.1 kristaps 705:
1.28 joerg 706: mparse_parse_buffer(curp, blk, file, re);
1.1 kristaps 707:
1.28 joerg 708: #ifdef HAVE_MMAP
709: if (with_mmap)
710: munmap(blk.buf, blk.sz);
711: else
712: #endif
713: free(blk.buf);
1.1 kristaps 714:
715: if (STDIN_FILENO != fd && -1 == close(fd))
716: perror(file);
717: }
718:
719: enum mandoclevel
720: mparse_readfd(struct mparse *curp, int fd, const char *file)
721: {
722:
723: mparse_readfd_r(curp, fd, file, 0);
724: return(curp->file_status);
725: }
726:
727: struct mparse *
1.29 schwarze 728: mparse_alloc(enum mparset inttype, enum mandoclevel wlevel,
729: mandocmsg mmsg, void *arg, char *defos)
1.1 kristaps 730: {
731: struct mparse *curp;
1.10 kristaps 732:
733: assert(wlevel <= MANDOCLEVEL_FATAL);
1.1 kristaps 734:
735: curp = mandoc_calloc(1, sizeof(struct mparse));
736:
1.3 kristaps 737: curp->wlevel = wlevel;
1.1 kristaps 738: curp->mmsg = mmsg;
739: curp->arg = arg;
740: curp->inttype = inttype;
1.29 schwarze 741: curp->defos = defos;
1.1 kristaps 742:
1.18 kristaps 743: curp->roff = roff_alloc(curp);
1.1 kristaps 744: return(curp);
745: }
746:
747: void
748: mparse_reset(struct mparse *curp)
749: {
750:
751: roff_reset(curp->roff);
752:
753: if (curp->mdoc)
754: mdoc_reset(curp->mdoc);
755: if (curp->man)
756: man_reset(curp->man);
1.24 kristaps 757: if (curp->secondary)
758: curp->secondary->sz = 0;
1.1 kristaps 759:
760: curp->file_status = MANDOCLEVEL_OK;
761: curp->mdoc = NULL;
762: curp->man = NULL;
763: }
764:
765: void
766: mparse_free(struct mparse *curp)
767: {
768:
769: if (curp->pmdoc)
770: mdoc_free(curp->pmdoc);
771: if (curp->pman)
772: man_free(curp->pman);
773: if (curp->roff)
774: roff_free(curp->roff);
1.24 kristaps 775: if (curp->secondary)
776: free(curp->secondary->buf);
1.1 kristaps 777:
1.24 kristaps 778: free(curp->secondary);
1.1 kristaps 779: free(curp);
780: }
781:
782: void
783: mparse_result(struct mparse *curp, struct mdoc **mdoc, struct man **man)
784: {
785:
1.9 kristaps 786: if (mdoc)
787: *mdoc = curp->mdoc;
788: if (man)
789: *man = curp->man;
1.3 kristaps 790: }
791:
792: void
793: mandoc_vmsg(enum mandocerr t, struct mparse *m,
794: int ln, int pos, const char *fmt, ...)
795: {
796: char buf[256];
797: va_list ap;
798:
799: va_start(ap, fmt);
800: vsnprintf(buf, sizeof(buf) - 1, fmt, ap);
801: va_end(ap);
802:
803: mandoc_msg(t, m, ln, pos, buf);
804: }
805:
806: void
807: mandoc_msg(enum mandocerr er, struct mparse *m,
808: int ln, int col, const char *msg)
809: {
810: enum mandoclevel level;
811:
812: level = MANDOCLEVEL_FATAL;
813: while (er < mandoclimits[level])
814: level--;
815:
816: if (level < m->wlevel)
817: return;
818:
1.8 kristaps 819: if (m->mmsg)
820: (*m->mmsg)(er, level, m->file, ln, col, msg);
1.3 kristaps 821:
822: if (m->file_status < level)
823: m->file_status = level;
1.7 kristaps 824: }
825:
826: const char *
827: mparse_strerror(enum mandocerr er)
828: {
829:
830: return(mandocerrs[er]);
831: }
832:
833: const char *
834: mparse_strlevel(enum mandoclevel lvl)
835: {
836: return(mandoclevels[lvl]);
1.24 kristaps 837: }
838:
839: void
840: mparse_keep(struct mparse *p)
841: {
842:
843: assert(NULL == p->secondary);
844: p->secondary = mandoc_calloc(1, sizeof(struct buf));
845: }
846:
847: const char *
848: mparse_getkeep(const struct mparse *p)
849: {
850:
851: assert(p->secondary);
852: return(p->secondary->sz ? p->secondary->buf : NULL);
1.1 kristaps 853: }