-/* $Id: apropos.c,v 1.9 2011/11/09 10:53:48 kristaps Exp $ */
+/* $Id: apropos.c,v 1.30 2012/03/24 02:18:51 kristaps Exp $ */
/*
- * Copyright (c) 2011 Kristaps Dzonsons <kristaps@bsd.lv>
+ * Copyright (c) 2011, 2012 Kristaps Dzonsons <kristaps@bsd.lv>
+ * Copyright (c) 2011 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
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+#include <sys/param.h>
+
#include <assert.h>
#include <getopt.h>
-#include <limits.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
+#include <unistd.h>
-#include "apropos.h"
+#include "apropos_db.h"
#include "mandoc.h"
+#include "manpath.h"
-struct type {
- int mask;
- const char *name; /* command-line type name */
-};
-
-static const struct type types[] = {
- { TYPE_NAME, "name" },
- { TYPE_FUNCTION, "func" },
- { TYPE_UTILITY, "utility" },
- { TYPE_INCLUDES, "incl" },
- { TYPE_VARIABLE, "var" },
- { TYPE_STANDARD, "stand" },
- { TYPE_AUTHOR, "auth" },
- { TYPE_CONFIG, "conf" },
- { TYPE_DESC, "desc" },
- { TYPE_XREF, "xref" },
- { TYPE_PATH, "path" },
- { TYPE_ENV, "env" },
- { TYPE_ERR, "err" },
- { INT_MAX, "all" },
- { 0, NULL }
-};
+#define SINGLETON(_res, _sz) \
+ ((_sz) && (_res)[0].matched && \
+ (1 == (_sz) || 0 == (_res)[1].matched))
+#define EMPTYSET(_res, _sz) \
+ ((0 == (_sz)) || 0 == (_res)[0].matched)
static int cmp(const void *, const void *);
-static void list(struct rec *, size_t, void *);
+static void list(struct res *, size_t, void *);
static void usage(void);
static char *progname;
int
main(int argc, char *argv[])
{
- int ch, i;
- char *q, *v;
+ int ch, rc, whatis, usecat;
+ struct res *res;
+ struct manpaths paths;
+ const char *prog;
+ pid_t pid;
+ char path[PATH_MAX];
+ int fds[2];
+ size_t terms, ressz, sz;
struct opts opts;
+ struct expr *e;
+ char *defpaths, *auxpaths, *conf_file, *cp;
extern int optind;
extern char *optarg;
- memset(&opts, 0, sizeof(struct opts));
-
- q = NULL;
-
progname = strrchr(argv[0], '/');
if (progname == NULL)
progname = argv[0];
else
++progname;
- while (-1 != (ch = getopt(argc, argv, "S:s:It:")))
+ whatis = 0 == strncmp(progname, "whatis", 6);
+
+ memset(&paths, 0, sizeof(struct manpaths));
+ memset(&opts, 0, sizeof(struct opts));
+
+ usecat = 0;
+ ressz = 0;
+ res = NULL;
+ auxpaths = defpaths = NULL;
+ conf_file = NULL;
+ e = NULL;
+ path[0] = '\0';
+
+ while (-1 != (ch = getopt(argc, argv, "C:M:m:S:s:")))
switch (ch) {
+ case ('C'):
+ conf_file = optarg;
+ break;
+ case ('M'):
+ defpaths = optarg;
+ break;
+ case ('m'):
+ auxpaths = optarg;
+ break;
case ('S'):
opts.arch = optarg;
break;
case ('s'):
opts.cat = optarg;
break;
- case ('I'):
- opts.flags |= OPTS_INSENS;
- break;
- case ('t'):
- while (NULL != (v = strsep(&optarg, ","))) {
- if ('\0' == *v)
- continue;
- for (i = 0; types[i].mask; i++) {
- if (strcmp(types[i].name, v))
- continue;
- break;
- }
- if (0 == types[i].mask)
- break;
- opts.types |= types[i].mask;
- }
- if (NULL == v)
- break;
-
- fprintf(stderr, "%s: Bad type\n", v);
- return(EXIT_FAILURE);
default:
usage();
return(EXIT_FAILURE);
argc -= optind;
argv += optind;
- if (0 == argc || '\0' == **argv) {
- usage();
+ if (0 == argc)
return(EXIT_SUCCESS);
- } else
- q = *argv;
-
- if (0 == opts.types)
- opts.types = TYPE_NAME | TYPE_DESC;
-
- /*
- * Configure databases.
- * The keyword database is a btree that allows for duplicate
- * entries.
- * The index database is a recno.
- */
- apropos_search(&opts, q, NULL, list);
- return(EXIT_SUCCESS);
+ rc = 0;
+
+ manpath_parse(&paths, conf_file, defpaths, auxpaths);
+
+ 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, &ressz, &res, list);
+
+ terms = 1;
+
+ if (0 == rc) {
+ fprintf(stderr, "%s: Bad database\n", progname);
+ goto out;
+ } else if ( ! isatty(STDOUT_FILENO) || EMPTYSET(res, ressz))
+ goto out;
+
+ if ( ! SINGLETON(res, ressz)) {
+ printf("Which manpage would you like [1]? ");
+ fflush(stdout);
+ if (NULL != (cp = fgetln(stdin, &sz)) &&
+ sz > 1 && '\n' == cp[--sz]) {
+ if ((ch = atoi(cp)) <= 0)
+ goto out;
+ terms = (size_t)ch;
+ }
+ }
+
+ if (--terms < ressz && res[terms].matched) {
+ chdir(paths.paths[res[terms].volume]);
+ strlcpy(path, res[terms].file, PATH_MAX);
+ usecat = RESTYPE_CAT == res[terms].type;
+ }
+out:
+ manpath_free(&paths);
+ resfree(res, ressz);
+ exprfree(e);
+
+ if ('\0' == path[0])
+ return(rc ? EXIT_SUCCESS : EXIT_FAILURE);
+
+ if (-1 == pipe(fds)) {
+ perror(NULL);
+ exit(EXIT_FAILURE);
+ }
+
+ if (-1 == (pid = fork())) {
+ perror(NULL);
+ exit(EXIT_FAILURE);
+ } else if (pid > 0) {
+ dup2(fds[0], STDIN_FILENO);
+ close(fds[1]);
+ prog = NULL != getenv("MANPAGER") ?
+ getenv("MANPAGER") :
+ (NULL != getenv("PAGER") ?
+ getenv("PAGER") : "more");
+ execlp(prog, prog, (char *)NULL);
+ perror(prog);
+ return(EXIT_FAILURE);
+ }
+
+ dup2(fds[1], STDOUT_FILENO);
+ close(fds[0]);
+ prog = usecat ? "cat" : "mandoc";
+ execlp(prog, prog, path, (char *)NULL);
+ perror(prog);
+ return(EXIT_FAILURE);
}
/* ARGSUSED */
static void
-list(struct rec *res, size_t sz, void *arg)
+list(struct res *res, size_t sz, void *arg)
{
- int i;
+ size_t i;
+
+ qsort(res, sz, sizeof(struct res), cmp);
- qsort(res, sz, sizeof(struct rec), cmp);
+ if (EMPTYSET(res, sz) || SINGLETON(res, sz))
+ return;
- 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);
+ if ( ! isatty(STDOUT_FILENO))
+ for (i = 0; i < sz && res[i].matched; i++)
+ printf("%s(%s%s%s) - %.70s\n",
+ res[i].title, res[i].cat,
+ *res[i].arch ? "/" : "",
+ *res[i].arch ? res[i].arch : "",
+ res[i].desc);
+ else
+ for (i = 0; i < sz && res[i].matched; i++)
+ printf("[%zu] %s(%s%s%s) - %.70s\n", i + 1,
+ 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)
{
+ const struct res *r1 = p1;
+ const struct res *r2 = p2;
+
+ if (0 == r1->matched)
+ return(1);
+ else if (0 == r2->matched)
+ return(1);
- return(strcmp(((const struct rec *)p1)->title,
- ((const struct rec *)p2)->title));
+ return(strcasecmp(r1->title, r2->title));
}
static void
{
fprintf(stderr, "usage: %s "
- "[-I] "
+ "[-C file] "
+ "[-M manpath] "
+ "[-m manpath] "
"[-S arch] "
"[-s section] "
- "[-t type[,...]] "
- "key\n", progname);
+ "expression ...\n",
+ progname);
}
git.ckatri.com / mandoc.git / blobdiff