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1.1 ! schwarze 1: /* $Id: read.c,v 1.1 2011/03/20 11:41:24 kristaps Exp $ */
! 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: */
! 18: #include <sys/stat.h>
! 19: #include <sys/mman.h>
! 20:
! 21: #include <assert.h>
! 22: #include <ctype.h>
! 23: #include <fcntl.h>
! 24: #include <stdarg.h>
! 25: #include <stdio.h>
! 26: #include <stdlib.h>
! 27: #include <string.h>
! 28: #include <unistd.h>
! 29:
! 30: #include "mandoc.h"
! 31: #include "libmandoc.h"
! 32: #include "mdoc.h"
! 33: #include "man.h"
! 34:
! 35: #define REPARSE_LIMIT 1000
! 36:
! 37: struct buf {
! 38: char *buf; /* binary input buffer */
! 39: size_t sz; /* size of binary buffer */
! 40: };
! 41:
! 42: struct mparse {
! 43: enum mandoclevel file_status; /* status of current parse */
! 44: enum mandoclevel wlevel; /* ignore messages below this */
! 45: int line; /* line number in the file */
! 46: enum mparset inttype; /* which parser to use */
! 47: struct man *pman; /* persistent man parser */
! 48: struct mdoc *pmdoc; /* persistent mdoc parser */
! 49: struct man *man; /* man parser */
! 50: struct mdoc *mdoc; /* mdoc parser */
! 51: struct roff *roff; /* roff parser (!NULL) */
! 52: struct regset regs; /* roff registers */
! 53: int reparse_count; /* finite interp. stack */
! 54: mandocmsg mmsg; /* warning/error message handler */
! 55: void *arg; /* argument to mmsg */
! 56: const char *file;
! 57: };
! 58:
! 59: static void resize_buf(struct buf *, size_t);
! 60: static void mparse_buf_r(struct mparse *, struct buf, int);
! 61: static void mparse_readfd_r(struct mparse *, int, const char *, int);
! 62: static void pset(const char *, int, struct mparse *);
! 63: static void pdesc(struct mparse *, const char *, int);
! 64: static int read_whole_file(const char *, int, struct buf *, int *);
! 65: static void mparse_end(struct mparse *);
! 66:
! 67: static const enum mandocerr mandoclimits[MANDOCLEVEL_MAX] = {
! 68: MANDOCERR_OK,
! 69: MANDOCERR_WARNING,
! 70: MANDOCERR_WARNING,
! 71: MANDOCERR_ERROR,
! 72: MANDOCERR_FATAL,
! 73: MANDOCERR_MAX,
! 74: MANDOCERR_MAX
! 75: };
! 76:
! 77: static const char * const mandocerrs[MANDOCERR_MAX] = {
! 78: "ok",
! 79:
! 80: "generic warning",
! 81:
! 82: /* related to the prologue */
! 83: "no title in document",
! 84: "document title should be all caps",
! 85: "unknown manual section",
! 86: "date missing, using today's date",
! 87: "cannot parse date, using it verbatim",
! 88: "prologue macros out of order",
! 89: "duplicate prologue macro",
! 90: "macro not allowed in prologue",
! 91: "macro not allowed in body",
! 92:
! 93: /* related to document structure */
! 94: ".so is fragile, better use ln(1)",
! 95: "NAME section must come first",
! 96: "bad NAME section contents",
! 97: "manual name not yet set",
! 98: "sections out of conventional order",
! 99: "duplicate section name",
! 100: "section not in conventional manual section",
! 101:
! 102: /* related to macros and nesting */
! 103: "skipping obsolete macro",
! 104: "skipping paragraph macro",
! 105: "skipping no-space macro",
! 106: "blocks badly nested",
! 107: "child violates parent syntax",
! 108: "nested displays are not portable",
! 109: "already in literal mode",
! 110: "line scope broken",
! 111:
! 112: /* related to missing macro arguments */
! 113: "skipping empty macro",
! 114: "argument count wrong",
! 115: "missing display type",
! 116: "list type must come first",
! 117: "tag lists require a width argument",
! 118: "missing font type",
! 119: "skipping end of block that is not open",
! 120:
! 121: /* related to bad macro arguments */
! 122: "skipping argument",
! 123: "duplicate argument",
! 124: "duplicate display type",
! 125: "duplicate list type",
! 126: "unknown AT&T UNIX version",
! 127: "bad Boolean value",
! 128: "unknown font",
! 129: "unknown standard specifier",
! 130: "bad width argument",
! 131:
! 132: /* related to plain text */
! 133: "blank line in non-literal context",
! 134: "tab in non-literal context",
! 135: "end of line whitespace",
! 136: "bad comment style",
! 137: "unknown escape sequence",
! 138: "unterminated quoted string",
! 139:
! 140: "generic error",
! 141:
! 142: /* related to tables */
! 143: "bad table syntax",
! 144: "bad table option",
! 145: "bad table layout",
! 146: "no table layout cells specified",
! 147: "no table data cells specified",
! 148: "ignore data in cell",
! 149: "data block still open",
! 150: "ignoring extra data cells",
! 151:
! 152: "input stack limit exceeded, infinite loop?",
! 153: "skipping bad character",
! 154: "escaped character not allowed in a name",
! 155: "skipping text before the first section header",
! 156: "skipping unknown macro",
! 157: "NOT IMPLEMENTED, please use groff: skipping request",
! 158: "argument count wrong",
! 159: "skipping end of block that is not open",
! 160: "missing end of block",
! 161: "scope open on exit",
! 162: "uname(3) system call failed",
! 163: "macro requires line argument(s)",
! 164: "macro requires body argument(s)",
! 165: "macro requires argument(s)",
! 166: "missing list type",
! 167: "line argument(s) will be lost",
! 168: "body argument(s) will be lost",
! 169:
! 170: "generic fatal error",
! 171:
! 172: "not a manual",
! 173: "column syntax is inconsistent",
! 174: "NOT IMPLEMENTED: .Bd -file",
! 175: "line scope broken, syntax violated",
! 176: "argument count wrong, violates syntax",
! 177: "child violates parent syntax",
! 178: "argument count wrong, violates syntax",
! 179: "NOT IMPLEMENTED: .so with absolute path or \"..\"",
! 180: "no document body",
! 181: "no document prologue",
! 182: "static buffer exhausted",
! 183: };
! 184:
! 185: static const char * const mandoclevels[MANDOCLEVEL_MAX] = {
! 186: "SUCCESS",
! 187: "RESERVED",
! 188: "WARNING",
! 189: "ERROR",
! 190: "FATAL",
! 191: "BADARG",
! 192: "SYSERR"
! 193: };
! 194:
! 195: static void
! 196: resize_buf(struct buf *buf, size_t initial)
! 197: {
! 198:
! 199: buf->sz = buf->sz > initial/2 ? 2 * buf->sz : initial;
! 200: buf->buf = mandoc_realloc(buf->buf, buf->sz);
! 201: }
! 202:
! 203: static void
! 204: pset(const char *buf, int pos, struct mparse *curp)
! 205: {
! 206: int i;
! 207:
! 208: /*
! 209: * Try to intuit which kind of manual parser should be used. If
! 210: * passed in by command-line (-man, -mdoc), then use that
! 211: * explicitly. If passed as -mandoc, then try to guess from the
! 212: * line: either skip dot-lines, use -mdoc when finding `.Dt', or
! 213: * default to -man, which is more lenient.
! 214: *
! 215: * Separate out pmdoc/pman from mdoc/man: the first persists
! 216: * through all parsers, while the latter is used per-parse.
! 217: */
! 218:
! 219: if ('.' == buf[0] || '\'' == buf[0]) {
! 220: for (i = 1; buf[i]; i++)
! 221: if (' ' != buf[i] && '\t' != buf[i])
! 222: break;
! 223: if ('\0' == buf[i])
! 224: return;
! 225: }
! 226:
! 227: switch (curp->inttype) {
! 228: case (MPARSE_MDOC):
! 229: if (NULL == curp->pmdoc)
! 230: curp->pmdoc = mdoc_alloc(&curp->regs, curp);
! 231: assert(curp->pmdoc);
! 232: curp->mdoc = curp->pmdoc;
! 233: return;
! 234: case (MPARSE_MAN):
! 235: if (NULL == curp->pman)
! 236: curp->pman = man_alloc(&curp->regs, curp);
! 237: assert(curp->pman);
! 238: curp->man = curp->pman;
! 239: return;
! 240: default:
! 241: break;
! 242: }
! 243:
! 244: if (pos >= 3 && 0 == memcmp(buf, ".Dd", 3)) {
! 245: if (NULL == curp->pmdoc)
! 246: curp->pmdoc = mdoc_alloc(&curp->regs, curp);
! 247: assert(curp->pmdoc);
! 248: curp->mdoc = curp->pmdoc;
! 249: return;
! 250: }
! 251:
! 252: if (NULL == curp->pman)
! 253: curp->pman = man_alloc(&curp->regs, curp);
! 254: assert(curp->pman);
! 255: curp->man = curp->pman;
! 256: }
! 257:
! 258: /*
! 259: * Main parse routine for an opened file. This is called for each
! 260: * opened file and simply loops around the full input file, possibly
! 261: * nesting (i.e., with `so').
! 262: */
! 263: static void
! 264: mparse_buf_r(struct mparse *curp, struct buf blk, int start)
! 265: {
! 266: const struct tbl_span *span;
! 267: struct buf ln;
! 268: enum rofferr rr;
! 269: int i, of, rc;
! 270: int pos; /* byte number in the ln buffer */
! 271: int lnn; /* line number in the real file */
! 272: unsigned char c;
! 273:
! 274: memset(&ln, 0, sizeof(struct buf));
! 275:
! 276: lnn = curp->line;
! 277: pos = 0;
! 278:
! 279: for (i = 0; i < (int)blk.sz; ) {
! 280: if (0 == pos && '\0' == blk.buf[i])
! 281: break;
! 282:
! 283: if (start) {
! 284: curp->line = lnn;
! 285: curp->reparse_count = 0;
! 286: }
! 287:
! 288: while (i < (int)blk.sz && (start || '\0' != blk.buf[i])) {
! 289:
! 290: /*
! 291: * When finding an unescaped newline character,
! 292: * leave the character loop to process the line.
! 293: * Skip a preceding carriage return, if any.
! 294: */
! 295:
! 296: if ('\r' == blk.buf[i] && i + 1 < (int)blk.sz &&
! 297: '\n' == blk.buf[i + 1])
! 298: ++i;
! 299: if ('\n' == blk.buf[i]) {
! 300: ++i;
! 301: ++lnn;
! 302: break;
! 303: }
! 304:
! 305: /*
! 306: * Warn about bogus characters. If you're using
! 307: * non-ASCII encoding, you're screwing your
! 308: * readers. Since I'd rather this not happen,
! 309: * I'll be helpful and drop these characters so
! 310: * we don't display gibberish. Note to manual
! 311: * writers: use special characters.
! 312: */
! 313:
! 314: c = (unsigned char) blk.buf[i];
! 315:
! 316: if ( ! (isascii(c) &&
! 317: (isgraph(c) || isblank(c)))) {
! 318: mandoc_msg(MANDOCERR_BADCHAR, curp,
! 319: curp->line, pos, "ignoring byte");
! 320: i++;
! 321: continue;
! 322: }
! 323:
! 324: /* Trailing backslash = a plain char. */
! 325:
! 326: if ('\\' != blk.buf[i] || i + 1 == (int)blk.sz) {
! 327: if (pos >= (int)ln.sz)
! 328: resize_buf(&ln, 256);
! 329: ln.buf[pos++] = blk.buf[i++];
! 330: continue;
! 331: }
! 332:
! 333: /*
! 334: * Found escape and at least one other character.
! 335: * When it's a newline character, skip it.
! 336: * When there is a carriage return in between,
! 337: * skip that one as well.
! 338: */
! 339:
! 340: if ('\r' == blk.buf[i + 1] && i + 2 < (int)blk.sz &&
! 341: '\n' == blk.buf[i + 2])
! 342: ++i;
! 343: if ('\n' == blk.buf[i + 1]) {
! 344: i += 2;
! 345: ++lnn;
! 346: continue;
! 347: }
! 348:
! 349: if ('"' == blk.buf[i + 1] || '#' == blk.buf[i + 1]) {
! 350: i += 2;
! 351: /* Comment, skip to end of line */
! 352: for (; i < (int)blk.sz; ++i) {
! 353: if ('\n' == blk.buf[i]) {
! 354: ++i;
! 355: ++lnn;
! 356: break;
! 357: }
! 358: }
! 359:
! 360: /* Backout trailing whitespaces */
! 361: for (; pos > 0; --pos) {
! 362: if (ln.buf[pos - 1] != ' ')
! 363: break;
! 364: if (pos > 2 && ln.buf[pos - 2] == '\\')
! 365: break;
! 366: }
! 367: break;
! 368: }
! 369:
! 370: /* Some other escape sequence, copy & cont. */
! 371:
! 372: if (pos + 1 >= (int)ln.sz)
! 373: resize_buf(&ln, 256);
! 374:
! 375: ln.buf[pos++] = blk.buf[i++];
! 376: ln.buf[pos++] = blk.buf[i++];
! 377: }
! 378:
! 379: if (pos >= (int)ln.sz)
! 380: resize_buf(&ln, 256);
! 381:
! 382: ln.buf[pos] = '\0';
! 383:
! 384: /*
! 385: * A significant amount of complexity is contained by
! 386: * the roff preprocessor. It's line-oriented but can be
! 387: * expressed on one line, so we need at times to
! 388: * readjust our starting point and re-run it. The roff
! 389: * preprocessor can also readjust the buffers with new
! 390: * data, so we pass them in wholesale.
! 391: */
! 392:
! 393: of = 0;
! 394:
! 395: rerun:
! 396: rr = roff_parseln
! 397: (curp->roff, curp->line,
! 398: &ln.buf, &ln.sz, of, &of);
! 399:
! 400: switch (rr) {
! 401: case (ROFF_REPARSE):
! 402: if (REPARSE_LIMIT >= ++curp->reparse_count)
! 403: mparse_buf_r(curp, ln, 0);
! 404: else
! 405: mandoc_msg(MANDOCERR_ROFFLOOP, curp,
! 406: curp->line, pos, NULL);
! 407: pos = 0;
! 408: continue;
! 409: case (ROFF_APPEND):
! 410: pos = (int)strlen(ln.buf);
! 411: continue;
! 412: case (ROFF_RERUN):
! 413: goto rerun;
! 414: case (ROFF_IGN):
! 415: pos = 0;
! 416: continue;
! 417: case (ROFF_ERR):
! 418: assert(MANDOCLEVEL_FATAL <= curp->file_status);
! 419: break;
! 420: case (ROFF_SO):
! 421: mparse_readfd_r(curp, -1, ln.buf + of, 1);
! 422: if (MANDOCLEVEL_FATAL <= curp->file_status)
! 423: break;
! 424: pos = 0;
! 425: continue;
! 426: default:
! 427: break;
! 428: }
! 429:
! 430: /*
! 431: * If we encounter errors in the recursive parse, make
! 432: * sure we don't continue parsing.
! 433: */
! 434:
! 435: if (MANDOCLEVEL_FATAL <= curp->file_status)
! 436: break;
! 437:
! 438: /*
! 439: * If input parsers have not been allocated, do so now.
! 440: * We keep these instanced betwen parsers, but set them
! 441: * locally per parse routine since we can use different
! 442: * parsers with each one.
! 443: */
! 444:
! 445: if ( ! (curp->man || curp->mdoc))
! 446: pset(ln.buf + of, pos - of, curp);
! 447:
! 448: /*
! 449: * Lastly, push down into the parsers themselves. One
! 450: * of these will have already been set in the pset()
! 451: * routine.
! 452: * If libroff returns ROFF_TBL, then add it to the
! 453: * currently open parse. Since we only get here if
! 454: * there does exist data (see tbl_data.c), we're
! 455: * guaranteed that something's been allocated.
! 456: * Do the same for ROFF_EQN.
! 457: */
! 458:
! 459: rc = -1;
! 460:
! 461: if (ROFF_TBL == rr)
! 462: while (NULL != (span = roff_span(curp->roff))) {
! 463: rc = curp->man ?
! 464: man_addspan(curp->man, span) :
! 465: mdoc_addspan(curp->mdoc, span);
! 466: if (0 == rc)
! 467: break;
! 468: }
! 469: else if (ROFF_EQN == rr)
! 470: rc = curp->mdoc ?
! 471: mdoc_addeqn(curp->mdoc,
! 472: roff_eqn(curp->roff)) :
! 473: man_addeqn(curp->man,
! 474: roff_eqn(curp->roff));
! 475: else if (curp->man || curp->mdoc)
! 476: rc = curp->man ?
! 477: man_parseln(curp->man,
! 478: curp->line, ln.buf, of) :
! 479: mdoc_parseln(curp->mdoc,
! 480: curp->line, ln.buf, of);
! 481:
! 482: if (0 == rc) {
! 483: assert(MANDOCLEVEL_FATAL <= curp->file_status);
! 484: break;
! 485: }
! 486:
! 487: /* Temporary buffers typically are not full. */
! 488:
! 489: if (0 == start && '\0' == blk.buf[i])
! 490: break;
! 491:
! 492: /* Start the next input line. */
! 493:
! 494: pos = 0;
! 495: }
! 496:
! 497: free(ln.buf);
! 498: }
! 499:
! 500: static void
! 501: pdesc(struct mparse *curp, const char *file, int fd)
! 502: {
! 503: struct buf blk;
! 504: int with_mmap;
! 505:
! 506: /*
! 507: * Run for each opened file; may be called more than once for
! 508: * each full parse sequence if the opened file is nested (i.e.,
! 509: * from `so'). Simply sucks in the whole file and moves into
! 510: * the parse phase for the file.
! 511: */
! 512:
! 513: if ( ! read_whole_file(file, fd, &blk, &with_mmap)) {
! 514: curp->file_status = MANDOCLEVEL_SYSERR;
! 515: return;
! 516: }
! 517:
! 518: /* Line number is per-file. */
! 519:
! 520: curp->line = 1;
! 521:
! 522: mparse_buf_r(curp, blk, 1);
! 523:
! 524: if (with_mmap)
! 525: munmap(blk.buf, blk.sz);
! 526: else
! 527: free(blk.buf);
! 528: }
! 529:
! 530: static int
! 531: read_whole_file(const char *file, int fd, struct buf *fb, int *with_mmap)
! 532: {
! 533: struct stat st;
! 534: size_t off;
! 535: ssize_t ssz;
! 536:
! 537: if (-1 == fstat(fd, &st)) {
! 538: perror(file);
! 539: return(0);
! 540: }
! 541:
! 542: /*
! 543: * If we're a regular file, try just reading in the whole entry
! 544: * via mmap(). This is faster than reading it into blocks, and
! 545: * since each file is only a few bytes to begin with, I'm not
! 546: * concerned that this is going to tank any machines.
! 547: */
! 548:
! 549: if (S_ISREG(st.st_mode)) {
! 550: if (st.st_size >= (1U << 31)) {
! 551: fprintf(stderr, "%s: input too large\n", file);
! 552: return(0);
! 553: }
! 554: *with_mmap = 1;
! 555: fb->sz = (size_t)st.st_size;
! 556: fb->buf = mmap(NULL, fb->sz, PROT_READ,
! 557: MAP_FILE|MAP_SHARED, fd, 0);
! 558: if (fb->buf != MAP_FAILED)
! 559: return(1);
! 560: }
! 561:
! 562: /*
! 563: * If this isn't a regular file (like, say, stdin), then we must
! 564: * go the old way and just read things in bit by bit.
! 565: */
! 566:
! 567: *with_mmap = 0;
! 568: off = 0;
! 569: fb->sz = 0;
! 570: fb->buf = NULL;
! 571: for (;;) {
! 572: if (off == fb->sz) {
! 573: if (fb->sz == (1U << 31)) {
! 574: fprintf(stderr, "%s: input too large\n", file);
! 575: break;
! 576: }
! 577: resize_buf(fb, 65536);
! 578: }
! 579: ssz = read(fd, fb->buf + (int)off, fb->sz - off);
! 580: if (ssz == 0) {
! 581: fb->sz = off;
! 582: return(1);
! 583: }
! 584: if (ssz == -1) {
! 585: perror(file);
! 586: break;
! 587: }
! 588: off += (size_t)ssz;
! 589: }
! 590:
! 591: free(fb->buf);
! 592: fb->buf = NULL;
! 593: return(0);
! 594: }
! 595:
! 596: static void
! 597: mparse_end(struct mparse *curp)
! 598: {
! 599:
! 600: if (MANDOCLEVEL_FATAL <= curp->file_status)
! 601: return;
! 602:
! 603: if (curp->mdoc && ! mdoc_endparse(curp->mdoc)) {
! 604: assert(MANDOCLEVEL_FATAL <= curp->file_status);
! 605: return;
! 606: }
! 607:
! 608: if (curp->man && ! man_endparse(curp->man)) {
! 609: assert(MANDOCLEVEL_FATAL <= curp->file_status);
! 610: return;
! 611: }
! 612:
! 613: if ( ! (curp->man || curp->mdoc)) {
! 614: mandoc_msg(MANDOCERR_NOTMANUAL, curp, 1, 0, NULL);
! 615: curp->file_status = MANDOCLEVEL_FATAL;
! 616: return;
! 617: }
! 618:
! 619: roff_endparse(curp->roff);
! 620: }
! 621:
! 622: static void
! 623: mparse_readfd_r(struct mparse *curp, int fd, const char *file, int re)
! 624: {
! 625: const char *svfile;
! 626:
! 627: if (-1 == fd)
! 628: if (-1 == (fd = open(file, O_RDONLY, 0))) {
! 629: perror(file);
! 630: curp->file_status = MANDOCLEVEL_SYSERR;
! 631: return;
! 632: }
! 633:
! 634: svfile = curp->file;
! 635: curp->file = file;
! 636:
! 637: pdesc(curp, file, fd);
! 638:
! 639: if (0 == re && MANDOCLEVEL_FATAL > curp->file_status)
! 640: mparse_end(curp);
! 641:
! 642: if (STDIN_FILENO != fd && -1 == close(fd))
! 643: perror(file);
! 644:
! 645: curp->file = svfile;
! 646: }
! 647:
! 648: enum mandoclevel
! 649: mparse_readfd(struct mparse *curp, int fd, const char *file)
! 650: {
! 651:
! 652: mparse_readfd_r(curp, fd, file, 0);
! 653: return(curp->file_status);
! 654: }
! 655:
! 656: struct mparse *
! 657: mparse_alloc(enum mparset inttype, enum mandoclevel wlevel, mandocmsg mmsg, void *arg)
! 658: {
! 659: struct mparse *curp;
! 660:
! 661: assert(wlevel <= MANDOCLEVEL_FATAL);
! 662:
! 663: curp = mandoc_calloc(1, sizeof(struct mparse));
! 664:
! 665: curp->wlevel = wlevel;
! 666: curp->mmsg = mmsg;
! 667: curp->arg = arg;
! 668: curp->inttype = inttype;
! 669:
! 670: curp->roff = roff_alloc(&curp->regs, curp);
! 671: return(curp);
! 672: }
! 673:
! 674: void
! 675: mparse_reset(struct mparse *curp)
! 676: {
! 677:
! 678: memset(&curp->regs, 0, sizeof(struct regset));
! 679:
! 680: roff_reset(curp->roff);
! 681:
! 682: if (curp->mdoc)
! 683: mdoc_reset(curp->mdoc);
! 684: if (curp->man)
! 685: man_reset(curp->man);
! 686:
! 687: curp->file_status = MANDOCLEVEL_OK;
! 688: curp->mdoc = NULL;
! 689: curp->man = NULL;
! 690: }
! 691:
! 692: void
! 693: mparse_free(struct mparse *curp)
! 694: {
! 695:
! 696: if (curp->pmdoc)
! 697: mdoc_free(curp->pmdoc);
! 698: if (curp->pman)
! 699: man_free(curp->pman);
! 700: if (curp->roff)
! 701: roff_free(curp->roff);
! 702:
! 703: free(curp);
! 704: }
! 705:
! 706: void
! 707: mparse_result(struct mparse *curp, struct mdoc **mdoc, struct man **man)
! 708: {
! 709:
! 710: if (mdoc)
! 711: *mdoc = curp->mdoc;
! 712: if (man)
! 713: *man = curp->man;
! 714: }
! 715:
! 716: void
! 717: mandoc_vmsg(enum mandocerr t, struct mparse *m,
! 718: int ln, int pos, const char *fmt, ...)
! 719: {
! 720: char buf[256];
! 721: va_list ap;
! 722:
! 723: va_start(ap, fmt);
! 724: vsnprintf(buf, sizeof(buf) - 1, fmt, ap);
! 725: va_end(ap);
! 726:
! 727: mandoc_msg(t, m, ln, pos, buf);
! 728: }
! 729:
! 730: void
! 731: mandoc_msg(enum mandocerr er, struct mparse *m,
! 732: int ln, int col, const char *msg)
! 733: {
! 734: enum mandoclevel level;
! 735:
! 736: level = MANDOCLEVEL_FATAL;
! 737: while (er < mandoclimits[level])
! 738: level--;
! 739:
! 740: if (level < m->wlevel)
! 741: return;
! 742:
! 743: if (m->mmsg)
! 744: (*m->mmsg)(er, level, m->file, ln, col, msg);
! 745:
! 746: if (m->file_status < level)
! 747: m->file_status = level;
! 748: }
! 749:
! 750: const char *
! 751: mparse_strerror(enum mandocerr er)
! 752: {
! 753:
! 754: return(mandocerrs[er]);
! 755: }
! 756:
! 757: const char *
! 758: mparse_strlevel(enum mandoclevel lvl)
! 759: {
! 760: return(mandoclevels[lvl]);
! 761: }