1 /* $Id: main.c,v 1.18 2009/10/27 21:40:07 schwarze Exp $ */
3 * Copyright (c) 2008, 2009 Kristaps Dzonsons <kristaps@kth.se>
5 * Permission to use, copy, modify, and distribute this software for any
6 * purpose with or without fee is hereby granted, provided that the above
7 * copyright notice and this permission notice appear in all copies.
9 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
32 #define UNCONST(a) ((void *)(uintptr_t)(const void *)(a))
34 typedef void (*out_mdoc)(void *, const struct mdoc *);
35 typedef void (*out_man)(void *, const struct man *);
36 typedef void (*out_free)(void *);
57 const char *file; /* Current parse. */
58 int fd; /* Current parse. */
60 #define WARN_WALL (1 << 0) /* All-warnings mask. */
61 #define WARN_WERR (1 << 2) /* Warnings->errors. */
63 #define IGN_SCOPE (1 << 0) /* Ignore scope errors. */
64 #define NO_IGN_ESCAPE (1 << 1) /* Don't ignore bad escapes. */
65 #define NO_IGN_MACRO (1 << 2) /* Don't ignore bad macros. */
66 #define NO_IGN_CHARS (1 << 3) /* Don't ignore bad chars. */
67 #define IGN_ERRORS (1 << 4) /* Ignore failed parse. */
68 enum intt inttype; /* Input parsers... */
72 struct mdoc *lastmdoc;
73 enum outt outtype; /* Output devices... */
81 static int foptions(int *, char *);
82 static int toptions(enum outt *, char *);
83 static int moptions(enum intt *, char *);
84 static int woptions(int *, char *);
85 static int merr(void *, int, int, const char *);
86 static int mwarn(void *, int, int, const char *);
87 static int ffile(struct buf *, struct buf *,
88 const char *, struct curparse *);
89 static int fdesc(struct buf *, struct buf *,
91 static int pset(const char *, int, struct curparse *,
92 struct man **, struct mdoc **);
93 static struct man *man_init(struct curparse *);
94 static struct mdoc *mdoc_init(struct curparse *);
95 __dead2 static void version(void);
96 __dead2 static void usage(void);
98 extern char *__progname;
102 main(int argc, char *argv[])
106 struct curparse curp;
108 bzero(&curp, sizeof(struct curparse));
110 curp.inttype = INTT_AUTO;
111 curp.outtype = OUTT_ASCII;
114 while (-1 != (c = getopt(argc, argv, "f:m:O:T:VW:")))
117 if ( ! foptions(&curp.fflags, optarg))
118 return(EXIT_FAILURE);
121 if ( ! moptions(&curp.inttype, optarg))
122 return(EXIT_FAILURE);
125 (void)strlcat(curp.outopts, optarg, BUFSIZ);
126 (void)strlcat(curp.outopts, ",", BUFSIZ);
129 if ( ! toptions(&curp.outtype, optarg))
130 return(EXIT_FAILURE);
133 if ( ! woptions(&curp.wflags, optarg))
134 return(EXIT_FAILURE);
147 bzero(&ln, sizeof(struct buf));
148 bzero(&blk, sizeof(struct buf));
153 curp.file = "<stdin>";
154 curp.fd = STDIN_FILENO;
156 c = fdesc(&blk, &ln, &curp);
157 if ( ! (IGN_ERRORS & curp.fflags))
160 rc = -1 == c ? 0 : 1;
163 while (rc && *argv) {
164 c = ffile(&blk, &ln, *argv, &curp);
165 if ( ! (IGN_ERRORS & curp.fflags))
168 rc = -1 == c ? 0 : 1;
173 if ( ! man_reset(curp.lastman))
176 if ( ! mdoc_reset(curp.lastmdoc))
179 curp.lastmdoc = NULL;
188 (*curp.outfree)(curp.outdata);
190 mdoc_free(curp.mdoc);
194 return(rc ? EXIT_SUCCESS : EXIT_FAILURE);
202 (void)printf("%s %s\n", __progname, VERSION);
211 (void)fprintf(stderr, "usage: %s [-V] [-foption...] "
212 "[-mformat] [-Ooption] [-Toutput] "
213 "[-Werr...]\n", __progname);
219 man_init(struct curparse *curp)
225 mancb.man_err = merr;
226 mancb.man_warn = mwarn;
228 /* Defaults from mandoc.1. */
230 pflags = MAN_IGN_MACRO | MAN_IGN_ESCAPE | MAN_IGN_CHARS;
232 if (curp->fflags & NO_IGN_MACRO)
233 pflags &= ~MAN_IGN_MACRO;
234 if (curp->fflags & NO_IGN_CHARS)
235 pflags &= ~MAN_IGN_CHARS;
236 if (curp->fflags & NO_IGN_ESCAPE)
237 pflags &= ~MAN_IGN_ESCAPE;
239 if (NULL == (man = man_alloc(curp, pflags, &mancb)))
240 warnx("memory exhausted");
247 mdoc_init(struct curparse *curp)
251 struct mdoc_cb mdoccb;
253 mdoccb.mdoc_err = merr;
254 mdoccb.mdoc_warn = mwarn;
256 /* Defaults from mandoc.1. */
258 pflags = MDOC_IGN_MACRO | MDOC_IGN_ESCAPE | MDOC_IGN_CHARS;
260 if (curp->fflags & IGN_SCOPE)
261 pflags |= MDOC_IGN_SCOPE;
262 if (curp->fflags & NO_IGN_ESCAPE)
263 pflags &= ~MDOC_IGN_ESCAPE;
264 if (curp->fflags & NO_IGN_MACRO)
265 pflags &= ~MDOC_IGN_MACRO;
266 if (curp->fflags & NO_IGN_CHARS)
267 pflags &= ~MDOC_IGN_CHARS;
269 if (NULL == (mdoc = mdoc_alloc(curp, pflags, &mdoccb)))
270 warnx("memory exhausted");
277 ffile(struct buf *blk, struct buf *ln,
278 const char *file, struct curparse *curp)
283 if (-1 == (curp->fd = open(curp->file, O_RDONLY, 0))) {
284 warn("%s", curp->file);
288 c = fdesc(blk, ln, curp);
290 if (-1 == close(curp->fd))
291 warn("%s", curp->file);
298 fdesc(struct buf *blk, struct buf *ln, struct curparse *curp)
303 int j, i, pos, lnn, comment;
312 * Two buffers: ln and buf. buf is the input buffer optimised
313 * here for each file's block size. ln is a line buffer. Both
314 * growable, hence passed in by ptr-ptr.
317 if (-1 == fstat(curp->fd, &st))
318 warn("%s", curp->file);
319 else if ((size_t)st.st_blksize > sz)
323 blk->buf = realloc(blk->buf, sz);
324 if (NULL == blk->buf) {
331 /* Fill buf with file blocksize. */
333 for (lnn = pos = comment = 0; ; ) {
334 if (-1 == (ssz = read(curp->fd, blk->buf, sz))) {
335 warn("%s", curp->file);
340 /* Parse the read block into partial or full lines. */
342 for (i = 0; i < (int)ssz; i++) {
343 if (pos >= (int)ln->sz) {
344 ln->sz += 256; /* Step-size. */
345 ln->buf = realloc(ln->buf, ln->sz);
346 if (NULL == ln->buf) {
352 if ('\n' != blk->buf[i]) {
355 ln->buf[pos++] = blk->buf[i];
357 /* Handle in-line `\"' comments. */
359 if (1 == pos || '\"' != ln->buf[pos - 1])
362 for (j = pos - 2; j >= 0; j--)
363 if ('\\' != ln->buf[j])
366 if ( ! ((pos - 2 - j) % 2))
374 /* Handle escaped `\\n' newlines. */
376 if (pos > 0 && 0 == comment &&
377 '\\' == ln->buf[pos - 1]) {
378 for (j = pos - 1; j >= 0; j--)
379 if ('\\' != ln->buf[j])
381 if ( ! ((pos - j) % 2)) {
391 /* If unset, assign parser in pset(). */
393 if ( ! (man || mdoc) && ! pset(ln->buf,
394 pos, curp, &man, &mdoc))
399 /* Pass down into parsers. */
401 if (man && ! man_parseln(man, lnn, ln->buf))
403 if (mdoc && ! mdoc_parseln(mdoc, lnn, ln->buf))
408 /* NOTE a parser may not have been assigned, yet. */
410 if ( ! (man || mdoc)) {
411 (void)fprintf(stderr, "%s: not a manual\n",
416 if (mdoc && ! mdoc_endparse(mdoc))
418 if (man && ! man_endparse(man))
421 /* If unset, allocate output dev now (if applicable). */
423 if ( ! (curp->outman && curp->outmdoc)) {
424 switch (curp->outtype) {
426 curp->outdata = html_alloc(curp->outopts);
427 curp->outman = html_man;
428 curp->outmdoc = html_mdoc;
429 curp->outfree = html_free;
432 curp->outman = tree_man;
433 curp->outmdoc = tree_mdoc;
438 curp->outdata = ascii_alloc();
439 curp->outman = terminal_man;
440 curp->outmdoc = terminal_mdoc;
441 curp->outfree = terminal_free;
446 /* Execute the out device, if it exists. */
448 if (man && curp->outman)
449 (*curp->outman)(curp->outdata, man);
450 if (mdoc && curp->outmdoc)
451 (*curp->outmdoc)(curp->outdata, mdoc);
458 pset(const char *buf, int pos, struct curparse *curp,
459 struct man **man, struct mdoc **mdoc)
464 * Try to intuit which kind of manual parser should be used. If
465 * passed in by command-line (-man, -mdoc), then use that
466 * explicitly. If passed as -mandoc, then try to guess from the
467 * line: either skip dot-lines, use -mdoc when finding `.Dt', or
468 * default to -man, which is more lenient.
472 for (i = 1; buf[i]; i++)
473 if (' ' != buf[i] && '\t' != buf[i])
479 switch (curp->inttype) {
481 if (NULL == curp->mdoc)
482 curp->mdoc = mdoc_init(curp);
483 if (NULL == (*mdoc = curp->mdoc))
485 curp->lastmdoc = *mdoc;
488 if (NULL == curp->man)
489 curp->man = man_init(curp);
490 if (NULL == (*man = curp->man))
492 curp->lastman = *man;
498 if (pos >= 3 && 0 == memcmp(buf, ".Dd", 3)) {
499 if (NULL == curp->mdoc)
500 curp->mdoc = mdoc_init(curp);
501 if (NULL == (*mdoc = curp->mdoc))
503 curp->lastmdoc = *mdoc;
507 if (NULL == curp->man)
508 curp->man = man_init(curp);
509 if (NULL == (*man = curp->man))
511 curp->lastman = *man;
517 moptions(enum intt *tflags, char *arg)
520 if (0 == strcmp(arg, "doc"))
522 else if (0 == strcmp(arg, "andoc"))
524 else if (0 == strcmp(arg, "an"))
527 warnx("bad argument: -m%s", arg);
536 toptions(enum outt *tflags, char *arg)
539 if (0 == strcmp(arg, "ascii"))
540 *tflags = OUTT_ASCII;
541 else if (0 == strcmp(arg, "lint"))
543 else if (0 == strcmp(arg, "tree"))
545 else if (0 == strcmp(arg, "html"))
548 warnx("bad argument: -T%s", arg);
557 foptions(int *fflags, char *arg)
562 toks[0] = "ign-scope";
563 toks[1] = "no-ign-escape";
564 toks[2] = "no-ign-macro";
565 toks[3] = "no-ign-chars";
566 toks[4] = "ign-errors";
572 switch (getsubopt(&arg, UNCONST(toks), &v)) {
574 *fflags |= IGN_SCOPE;
577 *fflags |= NO_IGN_ESCAPE;
580 *fflags |= NO_IGN_MACRO;
583 *fflags |= NO_IGN_CHARS;
586 *fflags |= IGN_ERRORS;
589 *fflags |= NO_IGN_ESCAPE |
590 NO_IGN_MACRO | NO_IGN_CHARS;
593 warnx("bad argument: -f%s", o);
603 woptions(int *wflags, char *arg)
614 switch (getsubopt(&arg, UNCONST(toks), &v)) {
616 *wflags |= WARN_WALL;
619 *wflags |= WARN_WERR;
622 warnx("bad argument: -W%s", o);
633 merr(void *arg, int line, int col, const char *msg)
635 struct curparse *curp;
637 curp = (struct curparse *)arg;
639 (void)fprintf(stderr, "%s:%d:%d: error: %s\n",
640 curp->file, line, col + 1, msg);
647 mwarn(void *arg, int line, int col, const char *msg)
649 struct curparse *curp;
651 curp = (struct curparse *)arg;
653 if ( ! (curp->wflags & WARN_WALL))
656 (void)fprintf(stderr, "%s:%d:%d: warning: %s\n",
657 curp->file, line, col + 1, msg);
659 if ( ! (curp->wflags & WARN_WERR))