Annotation of mandoc/main.c, Revision 1.184
1.184 ! schwarze 1: /* $Id: main.c,v 1.183 2014/08/22 03:42:18 schwarze Exp $ */
1.1 kristaps 2: /*
1.183 schwarze 3: * Copyright (c) 2008-2012 Kristaps Dzonsons <kristaps@bsd.lv>
1.170 schwarze 4: * Copyright (c) 2010, 2011, 2012, 2014 Ingo Schwarze <schwarze@openbsd.org>
1.169 schwarze 5: * Copyright (c) 2010 Joerg Sonnenberger <joerg@netbsd.org>
1.1 kristaps 6: *
7: * Permission to use, copy, modify, and distribute this software for any
1.25 kristaps 8: * purpose with or without fee is hereby granted, provided that the above
9: * copyright notice and this permission notice appear in all copies.
1.1 kristaps 10: *
1.25 kristaps 11: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
12: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
13: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
14: * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
15: * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
16: * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
17: * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
1.1 kristaps 18: */
1.58 kristaps 19: #include "config.h"
1.178 schwarze 20:
21: #include <sys/types.h>
1.58 kristaps 22:
1.1 kristaps 23: #include <assert.h>
1.183 schwarze 24: #include <errno.h>
1.1 kristaps 25: #include <stdio.h>
1.45 kristaps 26: #include <stdint.h>
1.1 kristaps 27: #include <stdlib.h>
28: #include <string.h>
29: #include <unistd.h>
30:
1.71 kristaps 31: #include "mandoc.h"
1.172 schwarze 32: #include "mandoc_aux.h"
1.90 kristaps 33: #include "main.h"
1.1 kristaps 34: #include "mdoc.h"
1.10 kristaps 35: #include "man.h"
1.180 schwarze 36: #include "manpath.h"
37: #include "mansearch.h"
1.101 joerg 38:
1.55 kristaps 39: #if !defined(__GNUC__) || (__GNUC__ < 2)
1.56 kristaps 40: # if !defined(lint)
41: # define __attribute__(x)
42: # endif
1.55 kristaps 43: #endif /* !defined(__GNUC__) || (__GNUC__ < 2) */
1.16 kristaps 44:
1.181 schwarze 45: enum outmode {
46: OUTMODE_DEF = 0,
47: OUTMODE_FLN,
48: OUTMODE_LST,
49: OUTMODE_ALL,
50: OUTMODE_INT,
51: OUTMODE_ONE
52: };
53:
1.42 kristaps 54: typedef void (*out_mdoc)(void *, const struct mdoc *);
55: typedef void (*out_man)(void *, const struct man *);
1.22 kristaps 56: typedef void (*out_free)(void *);
57:
1.19 kristaps 58: enum outt {
1.154 kristaps 59: OUTT_ASCII = 0, /* -Tascii */
1.162 kristaps 60: OUTT_LOCALE, /* -Tlocale */
1.163 kristaps 61: OUTT_UTF8, /* -Tutf8 */
1.154 kristaps 62: OUTT_TREE, /* -Ttree */
1.164 schwarze 63: OUTT_MAN, /* -Tman */
1.154 kristaps 64: OUTT_HTML, /* -Thtml */
65: OUTT_XHTML, /* -Txhtml */
66: OUTT_LINT, /* -Tlint */
67: OUTT_PS, /* -Tps */
68: OUTT_PDF /* -Tpdf */
1.19 kristaps 69: };
70:
1.5 kristaps 71: struct curparse {
1.154 kristaps 72: struct mparse *mp;
1.148 kristaps 73: enum mandoclevel wlevel; /* ignore messages below this */
74: int wstop; /* stop after a file with a warning */
1.173 schwarze 75: enum outt outtype; /* which output to use */
1.79 kristaps 76: out_mdoc outmdoc; /* mdoc output ptr */
1.173 schwarze 77: out_man outman; /* man output ptr */
1.79 kristaps 78: out_free outfree; /* free output ptr */
79: void *outdata; /* data for output */
80: char outopts[BUFSIZ]; /* buf of output opts */
81: };
82:
1.170 schwarze 83: static int moptions(int *, char *);
1.155 kristaps 84: static void mmsg(enum mandocerr, enum mandoclevel,
85: const char *, int, int, const char *);
1.173 schwarze 86: static void parse(struct curparse *, int,
1.154 kristaps 87: const char *, enum mandoclevel *);
1.183 schwarze 88: static void spawn_pager(void);
1.66 kristaps 89: static int toptions(struct curparse *, char *);
1.180 schwarze 90: static void usage(enum argmode) __attribute__((noreturn));
1.55 kristaps 91: static void version(void) __attribute__((noreturn));
1.103 schwarze 92: static int woptions(struct curparse *, char *);
1.1 kristaps 93:
1.182 schwarze 94: static const int sec_prios[] = {1, 4, 5, 8, 6, 3, 7, 2, 9};
1.54 kristaps 95: static const char *progname;
1.1 kristaps 96:
1.173 schwarze 97:
1.1 kristaps 98: int
99: main(int argc, char *argv[])
100: {
1.5 kristaps 101: struct curparse curp;
1.180 schwarze 102: struct mansearch search;
103: struct manpaths paths;
104: char *conf_file, *defpaths, *auxpaths;
105: char *defos;
106: #if HAVE_SQLITE3
107: struct manpage *res;
1.182 schwarze 108: char **auxargv;
109: size_t isec, i, sz;
110: int prio, best_prio;
111: char sec;
1.180 schwarze 112: #endif
113: enum mandoclevel rc;
1.181 schwarze 114: enum outmode outmode;
1.180 schwarze 115: int show_usage;
1.183 schwarze 116: int use_pager;
1.170 schwarze 117: int options;
1.180 schwarze 118: int c;
1.1 kristaps 119:
1.54 kristaps 120: progname = strrchr(argv[0], '/');
121: if (progname == NULL)
122: progname = argv[0];
123: else
124: ++progname;
1.179 schwarze 125:
1.180 schwarze 126: /* Search options. */
127:
128: memset(&paths, 0, sizeof(struct manpaths));
129: conf_file = defpaths = auxpaths = NULL;
130:
131: memset(&search, 0, sizeof(struct mansearch));
132: search.outkey = "Nd";
133:
134: if (strcmp(progname, "man") == 0)
135: search.argmode = ARG_NAME;
136: else if (strncmp(progname, "apropos", 7) == 0)
137: search.argmode = ARG_EXPR;
138: else if (strncmp(progname, "whatis", 6) == 0)
139: search.argmode = ARG_WORD;
140: else
141: search.argmode = ARG_FILE;
142:
143: /* Parser and formatter options. */
1.54 kristaps 144:
1.51 kristaps 145: memset(&curp, 0, sizeof(struct curparse));
1.22 kristaps 146: curp.outtype = OUTT_ASCII;
1.103 schwarze 147: curp.wlevel = MANDOCLEVEL_FATAL;
1.180 schwarze 148: options = MPARSE_SO;
1.166 schwarze 149: defos = NULL;
1.19 kristaps 150:
1.183 schwarze 151: use_pager = 1;
1.180 schwarze 152: show_usage = 0;
1.181 schwarze 153: outmode = OUTMODE_DEF;
1.183 schwarze 154:
155: while (-1 != (c = getopt(argc, argv, "aC:cfI:ikM:m:O:S:s:T:VW:w"))) {
1.1 kristaps 156: switch (c) {
1.181 schwarze 157: case 'a':
158: outmode = OUTMODE_ALL;
159: break;
1.180 schwarze 160: case 'C':
161: conf_file = optarg;
162: break;
1.183 schwarze 163: case 'c':
164: use_pager = 0;
165: break;
1.180 schwarze 166: case 'f':
167: search.argmode = ARG_WORD;
168: break;
1.173 schwarze 169: case 'I':
1.166 schwarze 170: if (strncmp(optarg, "os=", 3)) {
1.173 schwarze 171: fprintf(stderr,
1.176 schwarze 172: "%s: -I%s: Bad argument\n",
173: progname, optarg);
1.166 schwarze 174: return((int)MANDOCLEVEL_BADARG);
175: }
176: if (defos) {
1.173 schwarze 177: fprintf(stderr,
1.176 schwarze 178: "%s: -I%s: Duplicate argument\n",
179: progname, optarg);
1.166 schwarze 180: return((int)MANDOCLEVEL_BADARG);
181: }
182: defos = mandoc_strdup(optarg + 3);
183: break;
1.181 schwarze 184: case 'i':
185: outmode = OUTMODE_INT;
186: break;
1.180 schwarze 187: case 'k':
188: search.argmode = ARG_EXPR;
189: break;
190: case 'M':
191: defpaths = optarg;
192: break;
1.173 schwarze 193: case 'm':
1.180 schwarze 194: auxpaths = optarg;
1.10 kristaps 195: break;
1.173 schwarze 196: case 'O':
1.180 schwarze 197: search.outkey = optarg;
1.49 kristaps 198: (void)strlcat(curp.outopts, optarg, BUFSIZ);
199: (void)strlcat(curp.outopts, ",", BUFSIZ);
1.44 kristaps 200: break;
1.180 schwarze 201: case 'S':
202: search.arch = optarg;
203: break;
204: case 's':
205: search.sec = optarg;
206: break;
1.173 schwarze 207: case 'T':
1.60 kristaps 208: if ( ! toptions(&curp, optarg))
1.105 kristaps 209: return((int)MANDOCLEVEL_BADARG);
1.1 kristaps 210: break;
1.173 schwarze 211: case 'W':
1.103 schwarze 212: if ( ! woptions(&curp, optarg))
1.105 kristaps 213: return((int)MANDOCLEVEL_BADARG);
1.1 kristaps 214: break;
1.181 schwarze 215: case 'w':
216: outmode = OUTMODE_FLN;
217: break;
1.173 schwarze 218: case 'V':
1.1 kristaps 219: version();
220: /* NOTREACHED */
221: default:
1.180 schwarze 222: show_usage = 1;
223: break;
1.1 kristaps 224: }
1.180 schwarze 225: }
226:
227: if (show_usage)
228: usage(search.argmode);
229:
1.181 schwarze 230: if (outmode == OUTMODE_DEF) {
231: switch (search.argmode) {
232: case ARG_FILE:
233: outmode = OUTMODE_ALL;
1.183 schwarze 234: use_pager = 0;
1.181 schwarze 235: break;
236: case ARG_NAME:
237: outmode = OUTMODE_ONE;
238: break;
239: default:
240: outmode = OUTMODE_LST;
241: break;
242: }
243: }
244:
1.180 schwarze 245: argc -= optind;
246: argv += optind;
1.182 schwarze 247: #if HAVE_SQLITE3
248: auxargv = NULL;
249: #endif
250:
251: rc = MANDOCLEVEL_OK;
1.180 schwarze 252:
253: /* man(1), whatis(1), apropos(1) */
254:
255: if (search.argmode != ARG_FILE) {
256: #if HAVE_SQLITE3
257: if (argc == 0)
258: usage(search.argmode);
1.182 schwarze 259:
260: /* Access the mandoc database. */
261:
1.180 schwarze 262: manpath_parse(&paths, conf_file, defpaths, auxpaths);
263: mansearch_setup(1);
264: if( ! mansearch(&search, &paths, argc, argv, &res, &sz))
265: usage(search.argmode);
266: manpath_free(&paths);
1.182 schwarze 267:
268: /*
269: * For standard man(1) and -a output mode,
270: * prepare for copying filename pointers
271: * into the program parameter array.
272: */
273:
274: if (outmode == OUTMODE_ONE) {
275: argc = 1;
276: argv[0] = res[0].file;
277: argv[1] = NULL;
278: best_prio = 10;
279: } else if (outmode == OUTMODE_ALL) {
280: argc = (int)sz;
281: argv = auxargv = mandoc_reallocarray(
282: NULL, sz + 1, sizeof(char *));
283: argv[argc] = NULL;
284: }
285:
286: /* Iterate all matching manuals. */
287:
1.181 schwarze 288: for (i = 0; i < sz; i++) {
289: if (outmode == OUTMODE_FLN)
290: puts(res[i].file);
1.182 schwarze 291: else if (outmode == OUTMODE_LST)
1.181 schwarze 292: printf("%s - %s\n", res[i].names,
293: res[i].output == NULL ? "" :
294: res[i].output);
1.182 schwarze 295: else if (outmode == OUTMODE_ALL)
296: argv[i] = res[i].file;
297: else {
298: /* Search for the best section. */
299: isec = strcspn(res[i].file, "123456789");
300: sec = res[i].file[isec];
301: if ('\0' == sec)
302: continue;
303: prio = sec_prios[sec - '1'];
304: if (prio >= best_prio)
305: continue;
306: best_prio = prio;
307: argv[0] = res[i].file;
308: }
1.181 schwarze 309: }
1.182 schwarze 310:
311: /*
312: * For man(1), -a and -i output mode, fall through
313: * to the main mandoc(1) code iterating files
314: * and running the parsers on each of them.
315: */
316:
317: if (outmode == OUTMODE_FLN || outmode == OUTMODE_LST)
318: goto out;
1.180 schwarze 319: #else
320: fputs("mandoc: database support not compiled in\n",
321: stderr);
322: return((int)MANDOCLEVEL_BADARG);
323: #endif
324: }
325:
326: /* mandoc(1) */
327:
328: if ( ! moptions(&options, auxpaths))
329: return((int)MANDOCLEVEL_BADARG);
1.1 kristaps 330:
1.183 schwarze 331: if (use_pager && isatty(STDOUT_FILENO))
332: spawn_pager();
333:
1.170 schwarze 334: curp.mp = mparse_alloc(options, curp.wlevel, mmsg, defos);
1.154 kristaps 335:
1.165 kristaps 336: /*
337: * Conditionally start up the lookaside buffer before parsing.
338: */
339: if (OUTT_MAN == curp.outtype)
340: mparse_keep(curp.mp);
341:
1.154 kristaps 342: if (NULL == *argv)
343: parse(&curp, STDIN_FILENO, "<stdin>", &rc);
1.64 kristaps 344:
345: while (*argv) {
1.154 kristaps 346: parse(&curp, -1, *argv, &rc);
347: if (MANDOCLEVEL_OK != rc && curp.wstop)
1.64 kristaps 348: break;
349: ++argv;
1.1 kristaps 350: }
351:
1.22 kristaps 352: if (curp.outfree)
353: (*curp.outfree)(curp.outdata);
1.154 kristaps 354: if (curp.mp)
355: mparse_free(curp.mp);
1.182 schwarze 356:
357: #if HAVE_SQLITE3
358: out:
359: if (search.argmode != ARG_FILE) {
360: mansearch_free(res, sz);
361: mansearch_setup(0);
362: free(auxargv);
363: }
364: #endif
365:
1.166 schwarze 366: free(defos);
1.1 kristaps 367:
1.154 kristaps 368: return((int)rc);
1.1 kristaps 369: }
370:
1.55 kristaps 371: static void
1.1 kristaps 372: version(void)
373: {
374:
1.180 schwarze 375: printf("mandoc %s\n", VERSION);
1.105 kristaps 376: exit((int)MANDOCLEVEL_OK);
1.1 kristaps 377: }
378:
1.55 kristaps 379: static void
1.180 schwarze 380: usage(enum argmode argmode)
1.1 kristaps 381: {
382:
1.180 schwarze 383: switch (argmode) {
384: case ARG_FILE:
385: fputs("usage: mandoc [-V] [-Ios=name] [-mformat]"
386: " [-Ooption] [-Toutput] [-Wlevel]\n"
387: "\t [file ...]\n", stderr);
388: break;
389: case ARG_NAME:
390: fputs("usage: man [-acfhkVw] [-C file] "
391: "[-M path] [-m path] [-S arch] [-s section]\n"
392: "\t [section] name ...\n", stderr);
393: break;
394: case ARG_WORD:
395: fputs("usage: whatis [-V] [-C file] [-M path] [-m path] "
396: "[-S arch] [-s section] name ...\n", stderr);
397: break;
398: case ARG_EXPR:
399: fputs("usage: apropos [-V] [-C file] [-M path] [-m path] "
400: "[-O outkey] [-S arch]\n"
401: "\t [-s section] expression ...\n", stderr);
402: break;
403: }
1.105 kristaps 404: exit((int)MANDOCLEVEL_BADARG);
1.68 joerg 405: }
406:
1.64 kristaps 407: static void
1.173 schwarze 408: parse(struct curparse *curp, int fd, const char *file,
409: enum mandoclevel *level)
1.1 kristaps 410: {
1.154 kristaps 411: enum mandoclevel rc;
412: struct mdoc *mdoc;
413: struct man *man;
1.112 kristaps 414:
1.154 kristaps 415: /* Begin by parsing the file itself. */
1.112 kristaps 416:
1.154 kristaps 417: assert(file);
418: assert(fd >= -1);
1.112 kristaps 419:
1.154 kristaps 420: rc = mparse_readfd(curp->mp, fd, file);
1.112 kristaps 421:
1.154 kristaps 422: /* Stop immediately if the parse has failed. */
1.92 kristaps 423:
1.154 kristaps 424: if (MANDOCLEVEL_FATAL <= rc)
1.111 kristaps 425: goto cleanup;
426:
1.1 kristaps 427: /*
1.154 kristaps 428: * With -Wstop and warnings or errors of at least the requested
429: * level, do not produce output.
1.1 kristaps 430: */
431:
1.154 kristaps 432: if (MANDOCLEVEL_OK != rc && curp->wstop)
1.111 kristaps 433: goto cleanup;
434:
435: /* If unset, allocate output dev now (if applicable). */
436:
437: if ( ! (curp->outman && curp->outmdoc)) {
438: switch (curp->outtype) {
1.173 schwarze 439: case OUTT_XHTML:
1.111 kristaps 440: curp->outdata = xhtml_alloc(curp->outopts);
1.162 kristaps 441: curp->outfree = html_free;
1.111 kristaps 442: break;
1.173 schwarze 443: case OUTT_HTML:
1.111 kristaps 444: curp->outdata = html_alloc(curp->outopts);
1.162 kristaps 445: curp->outfree = html_free;
446: break;
1.173 schwarze 447: case OUTT_UTF8:
1.163 kristaps 448: curp->outdata = utf8_alloc(curp->outopts);
449: curp->outfree = ascii_free;
450: break;
1.173 schwarze 451: case OUTT_LOCALE:
1.162 kristaps 452: curp->outdata = locale_alloc(curp->outopts);
453: curp->outfree = ascii_free;
1.111 kristaps 454: break;
1.173 schwarze 455: case OUTT_ASCII:
1.111 kristaps 456: curp->outdata = ascii_alloc(curp->outopts);
457: curp->outfree = ascii_free;
458: break;
1.173 schwarze 459: case OUTT_PDF:
1.111 kristaps 460: curp->outdata = pdf_alloc(curp->outopts);
461: curp->outfree = pspdf_free;
462: break;
1.173 schwarze 463: case OUTT_PS:
1.111 kristaps 464: curp->outdata = ps_alloc(curp->outopts);
465: curp->outfree = pspdf_free;
466: break;
467: default:
468: break;
469: }
470:
471: switch (curp->outtype) {
1.173 schwarze 472: case OUTT_HTML:
1.111 kristaps 473: /* FALLTHROUGH */
1.173 schwarze 474: case OUTT_XHTML:
1.111 kristaps 475: curp->outman = html_man;
476: curp->outmdoc = html_mdoc;
477: break;
1.173 schwarze 478: case OUTT_TREE:
1.111 kristaps 479: curp->outman = tree_man;
480: curp->outmdoc = tree_mdoc;
481: break;
1.173 schwarze 482: case OUTT_MAN:
1.164 schwarze 483: curp->outmdoc = man_mdoc;
1.165 kristaps 484: curp->outman = man_man;
1.164 schwarze 485: break;
1.173 schwarze 486: case OUTT_PDF:
1.111 kristaps 487: /* FALLTHROUGH */
1.173 schwarze 488: case OUTT_ASCII:
1.111 kristaps 489: /* FALLTHROUGH */
1.173 schwarze 490: case OUTT_UTF8:
1.163 kristaps 491: /* FALLTHROUGH */
1.173 schwarze 492: case OUTT_LOCALE:
1.162 kristaps 493: /* FALLTHROUGH */
1.173 schwarze 494: case OUTT_PS:
1.111 kristaps 495: curp->outman = terminal_man;
496: curp->outmdoc = terminal_mdoc;
497: break;
498: default:
499: break;
500: }
501: }
502:
1.171 schwarze 503: mparse_result(curp->mp, &mdoc, &man, NULL);
1.154 kristaps 504:
1.111 kristaps 505: /* Execute the out device, if it exists. */
506:
1.154 kristaps 507: if (man && curp->outman)
508: (*curp->outman)(curp->outdata, man);
509: if (mdoc && curp->outmdoc)
510: (*curp->outmdoc)(curp->outdata, mdoc);
1.111 kristaps 511:
512: cleanup:
1.112 kristaps 513:
1.154 kristaps 514: mparse_reset(curp->mp);
1.111 kristaps 515:
1.154 kristaps 516: if (*level < rc)
517: *level = rc;
1.10 kristaps 518: }
519:
520: static int
1.170 schwarze 521: moptions(int *options, char *arg)
1.10 kristaps 522: {
523:
1.180 schwarze 524: if (arg == NULL)
525: /* nothing to do */;
526: else if (0 == strcmp(arg, "doc"))
1.170 schwarze 527: *options |= MPARSE_MDOC;
1.19 kristaps 528: else if (0 == strcmp(arg, "andoc"))
1.170 schwarze 529: /* nothing to do */;
1.17 kristaps 530: else if (0 == strcmp(arg, "an"))
1.170 schwarze 531: *options |= MPARSE_MAN;
1.10 kristaps 532: else {
1.176 schwarze 533: fprintf(stderr, "%s: -m%s: Bad argument\n",
534: progname, arg);
1.10 kristaps 535: return(0);
536: }
537:
538: return(1);
1.1 kristaps 539: }
540:
541: static int
1.60 kristaps 542: toptions(struct curparse *curp, char *arg)
1.1 kristaps 543: {
544:
545: if (0 == strcmp(arg, "ascii"))
1.60 kristaps 546: curp->outtype = OUTT_ASCII;
547: else if (0 == strcmp(arg, "lint")) {
548: curp->outtype = OUTT_LINT;
1.103 schwarze 549: curp->wlevel = MANDOCLEVEL_WARNING;
1.154 kristaps 550: } else if (0 == strcmp(arg, "tree"))
1.60 kristaps 551: curp->outtype = OUTT_TREE;
1.164 schwarze 552: else if (0 == strcmp(arg, "man"))
553: curp->outtype = OUTT_MAN;
1.43 kristaps 554: else if (0 == strcmp(arg, "html"))
1.60 kristaps 555: curp->outtype = OUTT_HTML;
1.163 kristaps 556: else if (0 == strcmp(arg, "utf8"))
557: curp->outtype = OUTT_UTF8;
1.162 kristaps 558: else if (0 == strcmp(arg, "locale"))
559: curp->outtype = OUTT_LOCALE;
1.59 kristaps 560: else if (0 == strcmp(arg, "xhtml"))
1.60 kristaps 561: curp->outtype = OUTT_XHTML;
1.85 kristaps 562: else if (0 == strcmp(arg, "ps"))
563: curp->outtype = OUTT_PS;
1.100 kristaps 564: else if (0 == strcmp(arg, "pdf"))
565: curp->outtype = OUTT_PDF;
1.1 kristaps 566: else {
1.176 schwarze 567: fprintf(stderr, "%s: -T%s: Bad argument\n",
568: progname, arg);
1.1 kristaps 569: return(0);
570: }
571:
572: return(1);
573: }
574:
575: static int
1.103 schwarze 576: woptions(struct curparse *curp, char *arg)
1.1 kristaps 577: {
1.34 kristaps 578: char *v, *o;
1.173 schwarze 579: const char *toks[6];
1.1 kristaps 580:
1.103 schwarze 581: toks[0] = "stop";
582: toks[1] = "all";
583: toks[2] = "warning";
584: toks[3] = "error";
585: toks[4] = "fatal";
586: toks[5] = NULL;
1.1 kristaps 587:
1.34 kristaps 588: while (*arg) {
589: o = arg;
1.45 kristaps 590: switch (getsubopt(&arg, UNCONST(toks), &v)) {
1.173 schwarze 591: case 0:
1.103 schwarze 592: curp->wstop = 1;
1.1 kristaps 593: break;
1.173 schwarze 594: case 1:
1.103 schwarze 595: /* FALLTHROUGH */
1.173 schwarze 596: case 2:
1.103 schwarze 597: curp->wlevel = MANDOCLEVEL_WARNING;
1.1 kristaps 598: break;
1.173 schwarze 599: case 3:
1.103 schwarze 600: curp->wlevel = MANDOCLEVEL_ERROR;
1.24 kristaps 601: break;
1.173 schwarze 602: case 4:
1.103 schwarze 603: curp->wlevel = MANDOCLEVEL_FATAL;
1.50 kristaps 604: break;
1.1 kristaps 605: default:
1.176 schwarze 606: fprintf(stderr, "%s: -W%s: Bad argument\n",
607: progname, o);
1.1 kristaps 608: return(0);
609: }
1.34 kristaps 610: }
1.1 kristaps 611:
612: return(1);
613: }
614:
1.153 kristaps 615: static void
1.173 schwarze 616: mmsg(enum mandocerr t, enum mandoclevel lvl,
1.155 kristaps 617: const char *file, int line, int col, const char *msg)
1.71 kristaps 618: {
1.177 schwarze 619: const char *mparse_msg;
1.103 schwarze 620:
1.175 schwarze 621: fprintf(stderr, "%s: %s:", progname, file);
622:
623: if (line)
624: fprintf(stderr, "%d:%d:", line, col + 1);
625:
1.177 schwarze 626: fprintf(stderr, " %s", mparse_strlevel(lvl));
627:
628: if (NULL != (mparse_msg = mparse_strerror(t)))
629: fprintf(stderr, ": %s", mparse_msg);
1.154 kristaps 630:
1.73 kristaps 631: if (msg)
632: fprintf(stderr, ": %s", msg);
1.154 kristaps 633:
1.73 kristaps 634: fputc('\n', stderr);
1.183 schwarze 635: }
636:
637: static void
638: spawn_pager(void)
639: {
1.184 ! schwarze 640: #define MAX_PAGER_ARGS 16
! 641: char *argv[MAX_PAGER_ARGS];
! 642: const char *pager;
! 643: char *cp;
! 644: int fildes[2];
! 645: int argc;
1.183 schwarze 646:
647: if (pipe(fildes) == -1) {
648: fprintf(stderr, "%s: pipe: %s\n",
649: progname, strerror(errno));
650: return;
651: }
652:
653: switch (fork()) {
654: case -1:
655: fprintf(stderr, "%s: fork: %s\n",
656: progname, strerror(errno));
657: exit((int)MANDOCLEVEL_SYSERR);
658: case 0:
659: close(fildes[0]);
660: if (dup2(fildes[1], STDOUT_FILENO) == -1) {
661: fprintf(stderr, "%s: dup output: %s\n",
662: progname, strerror(errno));
663: exit((int)MANDOCLEVEL_SYSERR);
664: }
665: return;
666: default:
1.184 ! schwarze 667: break;
! 668: }
! 669:
! 670: /* The original process becomes the pager. */
! 671:
! 672: close(fildes[1]);
! 673: if (dup2(fildes[0], STDIN_FILENO) == -1) {
! 674: fprintf(stderr, "%s: dup input: %s\n",
! 675: progname, strerror(errno));
1.183 schwarze 676: exit((int)MANDOCLEVEL_SYSERR);
677: }
1.184 ! schwarze 678:
! 679: pager = getenv("MANPAGER");
! 680: if (pager == NULL || *pager == '\0')
! 681: pager = getenv("PAGER");
! 682: if (pager == NULL || *pager == '\0')
! 683: pager = "/usr/bin/more -s";
! 684: cp = mandoc_strdup(pager);
! 685:
! 686: /*
! 687: * Parse the pager command into words.
! 688: * Intentionally do not do anything fancy here.
! 689: */
! 690:
! 691: argc = 0;
! 692: while (argc + 1 < MAX_PAGER_ARGS) {
! 693: argv[argc++] = cp;
! 694: cp = strchr(cp, ' ');
! 695: if (cp == NULL)
! 696: break;
! 697: *cp++ = '\0';
! 698: while (*cp == ' ')
! 699: cp++;
! 700: if (*cp == '\0')
! 701: break;
! 702: }
! 703: argv[argc] = NULL;
! 704:
! 705: /* Hand over to the pager. */
! 706:
! 707: execvp(argv[0], argv);
! 708: fprintf(stderr, "%s: exec: %s\n",
! 709: progname, strerror(errno));
! 710: exit((int)MANDOCLEVEL_SYSERR);
1.71 kristaps 711: }
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