Annotation of mandoc/read.c, Revision 1.29
1.29 ! schwarze 1: /* $Id: read.c,v 1.28 2012/02/16 20:51:31 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;
1.29 ! 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: "manual name not yet set",
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",
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",
177: "skipping text before the first section header",
178: "skipping unknown macro",
179: "NOT IMPLEMENTED, please use groff: skipping request",
180: "argument count wrong",
181: "skipping end of block that is not open",
182: "missing end of block",
183: "scope open on exit",
184: "uname(3) system call failed",
185: "macro requires line argument(s)",
186: "macro requires body argument(s)",
187: "macro requires argument(s)",
188: "missing list type",
189: "line argument(s) will be lost",
190: "body argument(s) will be lost",
191:
192: "generic fatal error",
193:
194: "not a manual",
195: "column syntax is inconsistent",
196: "NOT IMPLEMENTED: .Bd -file",
197: "argument count wrong, violates syntax",
198: "child violates parent syntax",
199: "argument count wrong, violates syntax",
200: "NOT IMPLEMENTED: .so with absolute path or \"..\"",
201: "no document body",
202: "no document prologue",
203: "static buffer exhausted",
204: };
205:
206: static const char * const mandoclevels[MANDOCLEVEL_MAX] = {
207: "SUCCESS",
208: "RESERVED",
209: "WARNING",
210: "ERROR",
211: "FATAL",
212: "BADARG",
213: "SYSERR"
214: };
215:
1.1 kristaps 216: static void
217: resize_buf(struct buf *buf, size_t initial)
218: {
219:
220: buf->sz = buf->sz > initial/2 ? 2 * buf->sz : initial;
221: buf->buf = mandoc_realloc(buf->buf, buf->sz);
222: }
223:
224: static void
225: pset(const char *buf, int pos, struct mparse *curp)
226: {
227: int i;
228:
229: /*
230: * Try to intuit which kind of manual parser should be used. If
231: * passed in by command-line (-man, -mdoc), then use that
232: * explicitly. If passed as -mandoc, then try to guess from the
233: * line: either skip dot-lines, use -mdoc when finding `.Dt', or
234: * default to -man, which is more lenient.
235: *
236: * Separate out pmdoc/pman from mdoc/man: the first persists
237: * through all parsers, while the latter is used per-parse.
238: */
239:
240: if ('.' == buf[0] || '\'' == buf[0]) {
241: for (i = 1; buf[i]; i++)
242: if (' ' != buf[i] && '\t' != buf[i])
243: break;
244: if ('\0' == buf[i])
245: return;
246: }
247:
248: switch (curp->inttype) {
249: case (MPARSE_MDOC):
250: if (NULL == curp->pmdoc)
1.29 ! schwarze 251: curp->pmdoc = mdoc_alloc(curp->roff, curp,
! 252: curp->defos);
1.1 kristaps 253: assert(curp->pmdoc);
254: curp->mdoc = curp->pmdoc;
255: return;
256: case (MPARSE_MAN):
257: if (NULL == curp->pman)
1.18 kristaps 258: curp->pman = man_alloc(curp->roff, curp);
1.1 kristaps 259: assert(curp->pman);
260: curp->man = curp->pman;
261: return;
262: default:
263: break;
264: }
265:
266: if (pos >= 3 && 0 == memcmp(buf, ".Dd", 3)) {
267: if (NULL == curp->pmdoc)
1.29 ! schwarze 268: curp->pmdoc = mdoc_alloc(curp->roff, curp,
! 269: curp->defos);
1.1 kristaps 270: assert(curp->pmdoc);
271: curp->mdoc = curp->pmdoc;
272: return;
273: }
274:
275: if (NULL == curp->pman)
1.18 kristaps 276: curp->pman = man_alloc(curp->roff, curp);
1.1 kristaps 277: assert(curp->pman);
278: curp->man = curp->pman;
279: }
280:
281: /*
282: * Main parse routine for an opened file. This is called for each
283: * opened file and simply loops around the full input file, possibly
284: * nesting (i.e., with `so').
285: */
286: static void
287: mparse_buf_r(struct mparse *curp, struct buf blk, int start)
288: {
289: const struct tbl_span *span;
290: struct buf ln;
291: enum rofferr rr;
292: int i, of, rc;
293: int pos; /* byte number in the ln buffer */
294: int lnn; /* line number in the real file */
295: unsigned char c;
296:
297: memset(&ln, 0, sizeof(struct buf));
298:
299: lnn = curp->line;
300: pos = 0;
301:
302: for (i = 0; i < (int)blk.sz; ) {
303: if (0 == pos && '\0' == blk.buf[i])
304: break;
305:
306: if (start) {
307: curp->line = lnn;
308: curp->reparse_count = 0;
309: }
310:
311: while (i < (int)blk.sz && (start || '\0' != blk.buf[i])) {
312:
313: /*
314: * When finding an unescaped newline character,
315: * leave the character loop to process the line.
316: * Skip a preceding carriage return, if any.
317: */
318:
319: if ('\r' == blk.buf[i] && i + 1 < (int)blk.sz &&
320: '\n' == blk.buf[i + 1])
321: ++i;
322: if ('\n' == blk.buf[i]) {
323: ++i;
324: ++lnn;
325: break;
326: }
327:
328: /*
329: * Warn about bogus characters. If you're using
330: * non-ASCII encoding, you're screwing your
331: * readers. Since I'd rather this not happen,
1.27 joerg 332: * I'll be helpful and replace these characters
333: * with "?", so we don't display gibberish.
334: * Note to manual writers: use special characters.
1.1 kristaps 335: */
336:
337: c = (unsigned char) blk.buf[i];
338:
339: if ( ! (isascii(c) &&
340: (isgraph(c) || isblank(c)))) {
1.3 kristaps 341: mandoc_msg(MANDOCERR_BADCHAR, curp,
1.27 joerg 342: curp->line, pos, NULL);
1.1 kristaps 343: i++;
1.27 joerg 344: if (pos >= (int)ln.sz)
345: resize_buf(&ln, 256);
346: ln.buf[pos++] = '?';
1.1 kristaps 347: continue;
348: }
349:
350: /* Trailing backslash = a plain char. */
351:
352: if ('\\' != blk.buf[i] || i + 1 == (int)blk.sz) {
353: if (pos >= (int)ln.sz)
354: resize_buf(&ln, 256);
355: ln.buf[pos++] = blk.buf[i++];
356: continue;
357: }
358:
359: /*
360: * Found escape and at least one other character.
361: * When it's a newline character, skip it.
362: * When there is a carriage return in between,
363: * skip that one as well.
364: */
365:
366: if ('\r' == blk.buf[i + 1] && i + 2 < (int)blk.sz &&
367: '\n' == blk.buf[i + 2])
368: ++i;
369: if ('\n' == blk.buf[i + 1]) {
370: i += 2;
371: ++lnn;
372: continue;
373: }
374:
1.13 kristaps 375: if ('"' == blk.buf[i + 1] || '#' == blk.buf[i + 1]) {
1.1 kristaps 376: i += 2;
377: /* Comment, skip to end of line */
378: for (; i < (int)blk.sz; ++i) {
379: if ('\n' == blk.buf[i]) {
380: ++i;
381: ++lnn;
382: break;
383: }
384: }
385:
386: /* Backout trailing whitespaces */
387: for (; pos > 0; --pos) {
388: if (ln.buf[pos - 1] != ' ')
389: break;
390: if (pos > 2 && ln.buf[pos - 2] == '\\')
391: break;
392: }
393: break;
394: }
395:
396: /* Some other escape sequence, copy & cont. */
397:
398: if (pos + 1 >= (int)ln.sz)
399: resize_buf(&ln, 256);
400:
401: ln.buf[pos++] = blk.buf[i++];
402: ln.buf[pos++] = blk.buf[i++];
403: }
404:
405: if (pos >= (int)ln.sz)
406: resize_buf(&ln, 256);
407:
408: ln.buf[pos] = '\0';
409:
410: /*
411: * A significant amount of complexity is contained by
412: * the roff preprocessor. It's line-oriented but can be
413: * expressed on one line, so we need at times to
414: * readjust our starting point and re-run it. The roff
415: * preprocessor can also readjust the buffers with new
416: * data, so we pass them in wholesale.
417: */
418:
419: of = 0;
420:
1.24 kristaps 421: /*
422: * Maintain a lookaside buffer of all parsed lines. We
423: * only do this if mparse_keep() has been invoked (the
424: * buffer may be accessed with mparse_getkeep()).
425: */
426:
427: if (curp->secondary) {
428: curp->secondary->buf =
429: mandoc_realloc
430: (curp->secondary->buf,
431: curp->secondary->sz + pos + 2);
432: memcpy(curp->secondary->buf +
433: curp->secondary->sz,
434: ln.buf, pos);
435: curp->secondary->sz += pos;
436: curp->secondary->buf
437: [curp->secondary->sz] = '\n';
438: curp->secondary->sz++;
439: curp->secondary->buf
440: [curp->secondary->sz] = '\0';
441: }
1.1 kristaps 442: rerun:
443: rr = roff_parseln
444: (curp->roff, curp->line,
445: &ln.buf, &ln.sz, of, &of);
446:
447: switch (rr) {
448: case (ROFF_REPARSE):
449: if (REPARSE_LIMIT >= ++curp->reparse_count)
450: mparse_buf_r(curp, ln, 0);
451: else
1.3 kristaps 452: mandoc_msg(MANDOCERR_ROFFLOOP, curp,
1.1 kristaps 453: curp->line, pos, NULL);
454: pos = 0;
455: continue;
456: case (ROFF_APPEND):
457: pos = (int)strlen(ln.buf);
458: continue;
459: case (ROFF_RERUN):
460: goto rerun;
461: case (ROFF_IGN):
462: pos = 0;
463: continue;
464: case (ROFF_ERR):
465: assert(MANDOCLEVEL_FATAL <= curp->file_status);
466: break;
467: case (ROFF_SO):
1.24 kristaps 468: /*
469: * We remove `so' clauses from our lookaside
470: * buffer because we're going to descend into
471: * the file recursively.
472: */
1.25 kristaps 473: if (curp->secondary)
474: curp->secondary->sz -= pos + 1;
1.1 kristaps 475: mparse_readfd_r(curp, -1, ln.buf + of, 1);
476: if (MANDOCLEVEL_FATAL <= curp->file_status)
477: break;
478: pos = 0;
479: continue;
480: default:
481: break;
482: }
483:
484: /*
485: * If we encounter errors in the recursive parse, make
486: * sure we don't continue parsing.
487: */
488:
489: if (MANDOCLEVEL_FATAL <= curp->file_status)
490: break;
491:
492: /*
493: * If input parsers have not been allocated, do so now.
1.14 kristaps 494: * We keep these instanced between parsers, but set them
1.1 kristaps 495: * locally per parse routine since we can use different
496: * parsers with each one.
497: */
498:
499: if ( ! (curp->man || curp->mdoc))
500: pset(ln.buf + of, pos - of, curp);
501:
502: /*
503: * Lastly, push down into the parsers themselves. One
504: * of these will have already been set in the pset()
505: * routine.
506: * If libroff returns ROFF_TBL, then add it to the
507: * currently open parse. Since we only get here if
508: * there does exist data (see tbl_data.c), we're
509: * guaranteed that something's been allocated.
510: * Do the same for ROFF_EQN.
511: */
512:
513: rc = -1;
514:
515: if (ROFF_TBL == rr)
516: while (NULL != (span = roff_span(curp->roff))) {
517: rc = curp->man ?
518: man_addspan(curp->man, span) :
519: mdoc_addspan(curp->mdoc, span);
520: if (0 == rc)
521: break;
522: }
523: else if (ROFF_EQN == rr)
524: rc = curp->mdoc ?
525: mdoc_addeqn(curp->mdoc,
526: roff_eqn(curp->roff)) :
527: man_addeqn(curp->man,
528: roff_eqn(curp->roff));
529: else if (curp->man || curp->mdoc)
530: rc = curp->man ?
531: man_parseln(curp->man,
532: curp->line, ln.buf, of) :
533: mdoc_parseln(curp->mdoc,
534: curp->line, ln.buf, of);
535:
536: if (0 == rc) {
537: assert(MANDOCLEVEL_FATAL <= curp->file_status);
538: break;
539: }
540:
541: /* Temporary buffers typically are not full. */
542:
543: if (0 == start && '\0' == blk.buf[i])
544: break;
545:
546: /* Start the next input line. */
547:
548: pos = 0;
549: }
550:
551: free(ln.buf);
552: }
553:
554: static int
555: read_whole_file(const char *file, int fd, struct buf *fb, int *with_mmap)
556: {
557: size_t off;
558: ssize_t ssz;
559:
1.15 kristaps 560: #ifdef HAVE_MMAP
561: struct stat st;
1.1 kristaps 562: if (-1 == fstat(fd, &st)) {
563: perror(file);
564: return(0);
565: }
566:
567: /*
568: * If we're a regular file, try just reading in the whole entry
569: * via mmap(). This is faster than reading it into blocks, and
570: * since each file is only a few bytes to begin with, I'm not
571: * concerned that this is going to tank any machines.
572: */
573:
574: if (S_ISREG(st.st_mode)) {
575: if (st.st_size >= (1U << 31)) {
576: fprintf(stderr, "%s: input too large\n", file);
577: return(0);
578: }
579: *with_mmap = 1;
580: fb->sz = (size_t)st.st_size;
581: fb->buf = mmap(NULL, fb->sz, PROT_READ,
582: MAP_FILE|MAP_SHARED, fd, 0);
583: if (fb->buf != MAP_FAILED)
584: return(1);
585: }
1.15 kristaps 586: #endif
1.1 kristaps 587:
588: /*
589: * If this isn't a regular file (like, say, stdin), then we must
590: * go the old way and just read things in bit by bit.
591: */
592:
593: *with_mmap = 0;
594: off = 0;
595: fb->sz = 0;
596: fb->buf = NULL;
597: for (;;) {
598: if (off == fb->sz) {
599: if (fb->sz == (1U << 31)) {
600: fprintf(stderr, "%s: input too large\n", file);
601: break;
602: }
603: resize_buf(fb, 65536);
604: }
605: ssz = read(fd, fb->buf + (int)off, fb->sz - off);
606: if (ssz == 0) {
607: fb->sz = off;
608: return(1);
609: }
610: if (ssz == -1) {
611: perror(file);
612: break;
613: }
614: off += (size_t)ssz;
615: }
616:
617: free(fb->buf);
618: fb->buf = NULL;
619: return(0);
620: }
621:
622: static void
623: mparse_end(struct mparse *curp)
624: {
625:
626: if (MANDOCLEVEL_FATAL <= curp->file_status)
627: return;
628:
629: if (curp->mdoc && ! mdoc_endparse(curp->mdoc)) {
630: assert(MANDOCLEVEL_FATAL <= curp->file_status);
631: return;
632: }
633:
634: if (curp->man && ! man_endparse(curp->man)) {
635: assert(MANDOCLEVEL_FATAL <= curp->file_status);
636: return;
637: }
638:
639: if ( ! (curp->man || curp->mdoc)) {
1.6 kristaps 640: mandoc_msg(MANDOCERR_NOTMANUAL, curp, 1, 0, NULL);
1.1 kristaps 641: curp->file_status = MANDOCLEVEL_FATAL;
1.6 kristaps 642: return;
1.1 kristaps 643: }
644:
645: roff_endparse(curp->roff);
646: }
647:
648: static void
1.28 joerg 649: mparse_parse_buffer(struct mparse *curp, struct buf blk, const char *file,
650: int re)
651: {
652: const char *svfile;
653:
654: /* Line number is per-file. */
655: svfile = curp->file;
656: curp->file = file;
657: curp->line = 1;
658:
659: mparse_buf_r(curp, blk, 1);
660:
661: if (0 == re && MANDOCLEVEL_FATAL > curp->file_status)
662: mparse_end(curp);
663:
664: curp->file = svfile;
665: }
666:
667: enum mandoclevel
668: mparse_readmem(struct mparse *curp, const void *buf, size_t len,
669: const char *file)
670: {
671: struct buf blk;
672:
673: blk.buf = UNCONST(buf);
674: blk.sz = len;
675:
676: mparse_parse_buffer(curp, blk, file, 0);
677: return(curp->file_status);
678: }
679:
680: static void
1.1 kristaps 681: mparse_readfd_r(struct mparse *curp, int fd, const char *file, int re)
682: {
1.28 joerg 683: struct buf blk;
684: int with_mmap;
1.1 kristaps 685:
686: if (-1 == fd)
687: if (-1 == (fd = open(file, O_RDONLY, 0))) {
688: perror(file);
689: curp->file_status = MANDOCLEVEL_SYSERR;
690: return;
691: }
1.28 joerg 692: /*
693: * Run for each opened file; may be called more than once for
694: * each full parse sequence if the opened file is nested (i.e.,
695: * from `so'). Simply sucks in the whole file and moves into
696: * the parse phase for the file.
697: */
1.1 kristaps 698:
1.28 joerg 699: if ( ! read_whole_file(file, fd, &blk, &with_mmap)) {
700: curp->file_status = MANDOCLEVEL_SYSERR;
701: return;
702: }
1.1 kristaps 703:
1.28 joerg 704: mparse_parse_buffer(curp, blk, file, re);
1.1 kristaps 705:
1.28 joerg 706: #ifdef HAVE_MMAP
707: if (with_mmap)
708: munmap(blk.buf, blk.sz);
709: else
710: #endif
711: free(blk.buf);
1.1 kristaps 712:
713: if (STDIN_FILENO != fd && -1 == close(fd))
714: perror(file);
715: }
716:
717: enum mandoclevel
718: mparse_readfd(struct mparse *curp, int fd, const char *file)
719: {
720:
721: mparse_readfd_r(curp, fd, file, 0);
722: return(curp->file_status);
723: }
724:
725: struct mparse *
1.29 ! schwarze 726: mparse_alloc(enum mparset inttype, enum mandoclevel wlevel,
! 727: mandocmsg mmsg, void *arg, char *defos)
1.1 kristaps 728: {
729: struct mparse *curp;
1.10 kristaps 730:
731: assert(wlevel <= MANDOCLEVEL_FATAL);
1.1 kristaps 732:
733: curp = mandoc_calloc(1, sizeof(struct mparse));
734:
1.3 kristaps 735: curp->wlevel = wlevel;
1.1 kristaps 736: curp->mmsg = mmsg;
737: curp->arg = arg;
738: curp->inttype = inttype;
1.29 ! schwarze 739: curp->defos = defos;
1.1 kristaps 740:
1.18 kristaps 741: curp->roff = roff_alloc(curp);
1.1 kristaps 742: return(curp);
743: }
744:
745: void
746: mparse_reset(struct mparse *curp)
747: {
748:
749: roff_reset(curp->roff);
750:
751: if (curp->mdoc)
752: mdoc_reset(curp->mdoc);
753: if (curp->man)
754: man_reset(curp->man);
1.24 kristaps 755: if (curp->secondary)
756: curp->secondary->sz = 0;
1.1 kristaps 757:
758: curp->file_status = MANDOCLEVEL_OK;
759: curp->mdoc = NULL;
760: curp->man = NULL;
761: }
762:
763: void
764: mparse_free(struct mparse *curp)
765: {
766:
767: if (curp->pmdoc)
768: mdoc_free(curp->pmdoc);
769: if (curp->pman)
770: man_free(curp->pman);
771: if (curp->roff)
772: roff_free(curp->roff);
1.24 kristaps 773: if (curp->secondary)
774: free(curp->secondary->buf);
1.1 kristaps 775:
1.24 kristaps 776: free(curp->secondary);
1.1 kristaps 777: free(curp);
778: }
779:
780: void
781: mparse_result(struct mparse *curp, struct mdoc **mdoc, struct man **man)
782: {
783:
1.9 kristaps 784: if (mdoc)
785: *mdoc = curp->mdoc;
786: if (man)
787: *man = curp->man;
1.3 kristaps 788: }
789:
790: void
791: mandoc_vmsg(enum mandocerr t, struct mparse *m,
792: int ln, int pos, const char *fmt, ...)
793: {
794: char buf[256];
795: va_list ap;
796:
797: va_start(ap, fmt);
798: vsnprintf(buf, sizeof(buf) - 1, fmt, ap);
799: va_end(ap);
800:
801: mandoc_msg(t, m, ln, pos, buf);
802: }
803:
804: void
805: mandoc_msg(enum mandocerr er, struct mparse *m,
806: int ln, int col, const char *msg)
807: {
808: enum mandoclevel level;
809:
810: level = MANDOCLEVEL_FATAL;
811: while (er < mandoclimits[level])
812: level--;
813:
814: if (level < m->wlevel)
815: return;
816:
1.8 kristaps 817: if (m->mmsg)
818: (*m->mmsg)(er, level, m->file, ln, col, msg);
1.3 kristaps 819:
820: if (m->file_status < level)
821: m->file_status = level;
1.7 kristaps 822: }
823:
824: const char *
825: mparse_strerror(enum mandocerr er)
826: {
827:
828: return(mandocerrs[er]);
829: }
830:
831: const char *
832: mparse_strlevel(enum mandoclevel lvl)
833: {
834: return(mandoclevels[lvl]);
1.24 kristaps 835: }
836:
837: void
838: mparse_keep(struct mparse *p)
839: {
840:
841: assert(NULL == p->secondary);
842: p->secondary = mandoc_calloc(1, sizeof(struct buf));
843: }
844:
845: const char *
846: mparse_getkeep(const struct mparse *p)
847: {
848:
849: assert(p->secondary);
850: return(p->secondary->sz ? p->secondary->buf : NULL);
1.1 kristaps 851: }
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