Annotation of src/usr.bin/mandoc/apropos.c, Revision 1.17
1.17 ! schwarze 1: /* $Id: apropos.c,v 1.16 2012/04/15 11:54:47 schwarze Exp $ */
1.1 schwarze 2: /*
1.16 schwarze 3: * Copyright (c) 2011, 2012 Kristaps Dzonsons <kristaps@bsd.lv>
1.8 schwarze 4: * Copyright (c) 2011 Ingo Schwarze <schwarze@openbsd.org>
1.1 schwarze 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: */
1.16 schwarze 18: #include <sys/param.h>
19:
1.1 schwarze 20: #include <assert.h>
21: #include <getopt.h>
22: #include <stdio.h>
23: #include <stdlib.h>
24: #include <string.h>
25:
1.3 schwarze 26: #include "apropos_db.h"
1.1 schwarze 27: #include "mandoc.h"
1.8 schwarze 28: #include "manpath.h"
1.1 schwarze 29:
1.3 schwarze 30: static int cmp(const void *, const void *);
1.7 schwarze 31: static void list(struct res *, size_t, void *);
1.1 schwarze 32:
1.2 schwarze 33: static char *progname;
1.1 schwarze 34:
35: int
36: apropos(int argc, char *argv[])
37: {
1.9 schwarze 38: int ch, rc, whatis;
1.16 schwarze 39: struct res *res;
1.8 schwarze 40: struct manpaths paths;
1.16 schwarze 41: size_t terms, ressz;
1.1 schwarze 42: struct opts opts;
1.3 schwarze 43: struct expr *e;
1.8 schwarze 44: char *defpaths, *auxpaths;
1.12 schwarze 45: char *conf_file;
1.17 ! schwarze 46: extern char *optarg;
1.1 schwarze 47: extern int optind;
48:
49: progname = strrchr(argv[0], '/');
50: if (progname == NULL)
51: progname = argv[0];
52: else
53: ++progname;
54:
1.17 ! schwarze 55: whatis = (0 == strncmp(progname, "whatis", 6));
1.9 schwarze 56:
1.8 schwarze 57: memset(&paths, 0, sizeof(struct manpaths));
58: memset(&opts, 0, sizeof(struct opts));
59:
1.16 schwarze 60: ressz = 0;
61: res = NULL;
1.8 schwarze 62: auxpaths = defpaths = NULL;
1.12 schwarze 63: conf_file = NULL;
1.8 schwarze 64: e = NULL;
65:
1.12 schwarze 66: while (-1 != (ch = getopt(argc, argv, "C:M:m:S:s:")))
1.1 schwarze 67: switch (ch) {
1.12 schwarze 68: case ('C'):
69: conf_file = optarg;
70: break;
1.6 schwarze 71: case ('M'):
1.8 schwarze 72: defpaths = optarg;
73: break;
1.6 schwarze 74: case ('m'):
1.8 schwarze 75: auxpaths = optarg;
1.6 schwarze 76: break;
1.3 schwarze 77: case ('S'):
1.1 schwarze 78: opts.arch = optarg;
79: break;
1.3 schwarze 80: case ('s'):
1.1 schwarze 81: opts.cat = optarg;
82: break;
83: default:
1.17 ! schwarze 84: goto usage;
1.1 schwarze 85: }
86:
87: argc -= optind;
88: argv += optind;
89:
1.17 ! schwarze 90: if (0 == argc)
! 91: goto usage;
1.9 schwarze 92:
93: rc = 0;
1.8 schwarze 94:
1.12 schwarze 95: manpath_parse(&paths, conf_file, defpaths, auxpaths);
1.1 schwarze 96:
1.9 schwarze 97: e = whatis ? termcomp(argc, argv, &terms) :
98: exprcomp(argc, argv, &terms);
99:
100: if (NULL == e) {
1.8 schwarze 101: fprintf(stderr, "%s: Bad expression\n", progname);
102: goto out;
1.3 schwarze 103: }
1.1 schwarze 104:
1.8 schwarze 105: rc = apropos_search
1.16 schwarze 106: (paths.sz, paths.paths, &opts,
107: e, terms, NULL, &ressz, &res, list);
1.6 schwarze 108:
1.16 schwarze 109: if (0 == rc) {
110: fprintf(stderr, "%s: Bad database\n", progname);
111: goto out;
112: }
1.17 ! schwarze 113:
1.8 schwarze 114: out:
115: manpath_free(&paths);
1.16 schwarze 116: resfree(res, ressz);
1.3 schwarze 117: exprfree(e);
1.8 schwarze 118: return(rc ? EXIT_SUCCESS : EXIT_FAILURE);
1.17 ! schwarze 119:
! 120: usage:
! 121: fprintf(stderr, "usage: %s [-C file] [-M path] [-m path] "
! 122: "[-S arch] [-s section]%s ...\n", progname,
! 123: whatis ? " name" : "\n expression");
! 124: return(EXIT_FAILURE);
1.1 schwarze 125: }
126:
1.3 schwarze 127: /* ARGSUSED */
1.1 schwarze 128: static void
1.7 schwarze 129: list(struct res *res, size_t sz, void *arg)
1.1 schwarze 130: {
1.16 schwarze 131: size_t i;
1.1 schwarze 132:
1.7 schwarze 133: qsort(res, sz, sizeof(struct res), cmp);
1.1 schwarze 134:
1.16 schwarze 135: for (i = 0; i < sz; i++) {
136: if ( ! res[i].matched)
137: continue;
138: printf("%s(%s%s%s) - %.70s\n",
139: res[i].title,
1.8 schwarze 140: res[i].cat,
1.1 schwarze 141: *res[i].arch ? "/" : "",
142: *res[i].arch ? res[i].arch : "",
1.16 schwarze 143: res[i].desc);
144: }
1.1 schwarze 145: }
146:
147: static int
1.3 schwarze 148: cmp(const void *p1, const void *p2)
1.1 schwarze 149: {
150:
1.11 schwarze 151: return(strcasecmp(((const struct res *)p1)->title,
1.7 schwarze 152: ((const struct res *)p2)->title));
1.1 schwarze 153: }
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