add a LICENSE file for clarity and for the convenience of porters

[mandoc.git] / apropos.c

diff --git a/apropos.c b/apropos.c
index 2ccdd5fe69fb7b219fd4c026ccc22bb934076f8f..80b6bc6d036e965fa85926ceb1303c3360e6b1c6 100644 (file)
--- a/apropos.c
+++ b/apropos.c
@@ -1,7 +1,7 @@
-/*     $Id: apropos.c,v 1.21 2011/11/28 09:44:05 schwarze Exp $ */
+/*     $Id: apropos.c,v 1.39 2014/04/20 16:46:04 schwarze Exp $ */
 /*
- * Copyright (c) 2011 Kristaps Dzonsons <kristaps@bsd.lv>
- * Copyright (c) 2011 Ingo Schwarze <schwarze@openbsd.org>
+ * Copyright (c) 2012 Kristaps Dzonsons <kristaps@bsd.lv>
+ * Copyright (c) 2013 Ingo Schwarze <schwarze@openbsd.org>
  *
  * Permission to use, copy, modify, and distribute this software for any
  * purpose with or without fee is hereby granted, provided that the above
@@ -18,34 +18,34 @@
 #ifdef HAVE_CONFIG_H
 #include "config.h"
 #endif
+#include <sys/param.h>
 
 #include <assert.h>
 #include <getopt.h>
+#include <stdint.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
+#include <unistd.h>
 
-#include "apropos_db.h"
-#include "mandoc.h"
 #include "manpath.h"
+#include "mansearch.h"
 
-static int      cmp(const void *, const void *);
-static void     list(struct res *, size_t, void *);
-static void     usage(void);
-
-static char    *progname;
 
 int
 main(int argc, char *argv[])
 {
-       int              ch, rc, whatis;
+       int              ch, whatis;
+       struct mansearch search;
+       size_t           i, sz;
+       struct manpage  *res;
        struct manpaths  paths;
-       size_t           terms;
-       struct opts      opts;
-       struct expr     *e;
        char            *defpaths, *auxpaths;
-       extern int       optind;
+       char            *conf_file;
+       char            *progname;
+       const char      *outkey;
        extern char     *optarg;
+       extern int       optind;
 
        progname = strrchr(argv[0], '/');
        if (progname == NULL)
@@ -53,99 +53,71 @@ main(int argc, char *argv[])
        else
                ++progname;
 
-       whatis = 0 == strncmp(progname, "whatis", 6);
+       whatis = (0 == strncmp(progname, "whatis", 6));
 
        memset(&paths, 0, sizeof(struct manpaths));
-       memset(&opts, 0, sizeof(struct opts));
+       memset(&search, 0, sizeof(struct mansearch));
 
        auxpaths = defpaths = NULL;
-       e = NULL;
+       conf_file = NULL;
+       outkey = "Nd";
 
-       while (-1 != (ch = getopt(argc, argv, "M:m:S:s:")))
+       while (-1 != (ch = getopt(argc, argv, "C:M:m:O:S:s:")))
                switch (ch) {
-               case ('M'):
+               case 'C':
+                       conf_file = optarg;
+                       break;
+               case 'M':
                        defpaths = optarg;
                        break;
-               case ('m'):
+               case 'm':
                        auxpaths = optarg;
                        break;
-               case ('S'):
-                       opts.arch = optarg;
+               case 'O':
+                       outkey = optarg;
+                       break;
+               case 'S':
+                       search.arch = optarg;
                        break;
-               case ('s'):
-                       opts.cat = optarg;
+               case 's':
+                       search.sec = optarg;
                        break;
                default:
-                       usage();
-                       return(EXIT_FAILURE);
+                       goto usage;
                }
 
        argc -= optind;
        argv += optind;
 
-       if (0 == argc) 
-               return(EXIT_SUCCESS);
-
-       rc = 0;
+       if (0 == argc)
+               goto usage;
 
-       manpath_parse(&paths, defpaths, auxpaths);
+       search.deftype = whatis ? TYPE_Nm : TYPE_Nm | TYPE_Nd;
+       search.flags = whatis ? MANSEARCH_WHATIS : 0;
 
-       e = whatis ? termcomp(argc, argv, &terms) :
-                    exprcomp(argc, argv, &terms);
-               
-       if (NULL == e) {
-               fprintf(stderr, "%s: Bad expression\n", progname);
-               goto out;
-       }
-
-       rc = apropos_search
-               (paths.sz, paths.paths,
-                &opts, e, terms, NULL, list);
-
-       if (0 == rc)
-               fprintf(stderr, "%s: Error reading "
-                               "manual database\n", progname);
-
-out:
+       manpath_parse(&paths, conf_file, defpaths, auxpaths);
+       mansearch_setup(1);
+       ch = mansearch(&search, &paths, argc, argv, outkey, &res, &sz);
        manpath_free(&paths);
-       exprfree(e);
-
-       return(rc ? EXIT_SUCCESS : EXIT_FAILURE);
-}
-
-/* ARGSUSED */
-static void
-list(struct res *res, size_t sz, void *arg)
-{
-       int              i;
 
-       qsort(res, sz, sizeof(struct res), cmp);
+       if (0 == ch)
+               goto usage;
 
-       for (i = 0; i < (int)sz; i++)
-               printf("%s(%s%s%s) - %s\n", res[i].title,
-                               res[i].cat,
-                               *res[i].arch ? "/" : "",
-                               *res[i].arch ? res[i].arch : "",
-                               res[i].desc);
-}
-
-static int
-cmp(const void *p1, const void *p2)
-{
-
-       return(strcmp(((const struct res *)p1)->title,
-                               ((const struct res *)p2)->title));
-}
-
-static void
-usage(void)
-{
+       for (i = 0; i < sz; i++) {
+               printf("%s - %s\n", res[i].names,
+                   NULL == res[i].output ? "" : res[i].output);
+               free(res[i].file);
+               free(res[i].names);
+               free(res[i].output);
+       }
 
-       fprintf(stderr, "usage: %s "
-                       "[-M path] "
-                       "[-m path] "
-                       "[-S arch] "
-                       "[-s section] "
-                       "expression...\n",
-                       progname);
+       free(res);
+       mansearch_setup(0);
+       return(sz ? EXIT_SUCCESS : EXIT_FAILURE);
+usage:
+       fprintf(stderr, "usage: %s [-C file] [-M path] [-m path] "
+                       "[-O outkey] "
+                       "[-S arch] [-s section]%s ...\n", progname,
+                       whatis ? " name" : "\n               expression");
+       return(EXIT_FAILURE);
 }