1 /* $NetBSD: lookbib.cpp,v 1.1.1.1 2016/01/13 18:41:49 christos Exp $ */
2
3 // -*- C++ -*-
4 /* Copyright (C) 1989-1992, 2000, 2001, 2002, 2003
5 Free Software Foundation, Inc.
6 Written by James Clark (jjc@jclark.com)
7
8 This file is part of groff.
9
10 groff is free software; you can redistribute it and/or modify it under
11 the terms of the GNU General Public License as published by the Free
12 Software Foundation; either version 2, or (at your option) any later
13 version.
14
15 groff is distributed in the hope that it will be useful, but WITHOUT ANY
16 WARRANTY; without even the implied warranty of MERCHANTABILITY or
17 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
18 for more details.
19
20 You should have received a copy of the GNU General Public License along
21 with groff; see the file COPYING. If not, write to the Free Software
22 Foundation, 51 Franklin St - Fifth Floor, Boston, MA 02110-1301, USA. */
23
24 #include "lib.h"
25
26 #include <stdlib.h>
27 #include <assert.h>
28 #include <errno.h>
29
30 #include "errarg.h"
31 #include "error.h"
32 #include "cset.h"
33
34 #include "refid.h"
35 #include "search.h"
36
37 /* for isatty() */
38 #include "posix.h"
39 #include "nonposix.h"
40
41 extern "C" {
42 const char *Version_string;
43 }
44
usage(FILE * stream)45 static void usage(FILE *stream)
46 {
47 fprintf(stream, "usage: %s [-v] [-i XYZ] [-t N] database ...\n",
48 program_name);
49 }
50
main(int argc,char ** argv)51 int main(int argc, char **argv)
52 {
53 program_name = argv[0];
54 static char stderr_buf[BUFSIZ];
55 setbuf(stderr, stderr_buf);
56 int opt;
57 static const struct option long_options[] = {
58 { "help", no_argument, 0, CHAR_MAX + 1 },
59 { "version", no_argument, 0, 'v' },
60 { NULL, 0, 0, 0 }
61 };
62 while ((opt = getopt_long(argc, argv, "vVi:t:", long_options, NULL)) != EOF)
63 switch (opt) {
64 case 'V':
65 verify_flag = 1;
66 break;
67 case 'i':
68 linear_ignore_fields = optarg;
69 break;
70 case 't':
71 {
72 char *ptr;
73 long n = strtol(optarg, &ptr, 10);
74 if (n == 0 && ptr == optarg) {
75 error("bad integer `%1' in `t' option", optarg);
76 break;
77 }
78 if (n < 1)
79 n = 1;
80 linear_truncate_len = int(n);
81 break;
82 }
83 case 'v':
84 {
85 printf("GNU lookbib (groff) version %s\n", Version_string);
86 exit(0);
87 break;
88 }
89 case CHAR_MAX + 1: // --help
90 usage(stdout);
91 exit(0);
92 break;
93 case '?':
94 usage(stderr);
95 exit(1);
96 break;
97 default:
98 assert(0);
99 }
100 if (optind >= argc) {
101 usage(stderr);
102 exit(1);
103 }
104 search_list list;
105 for (int i = optind; i < argc; i++)
106 list.add_file(argv[i]);
107 if (list.nfiles() == 0)
108 fatal("no databases");
109 char line[1024];
110 int interactive = isatty(fileno(stdin));
111 for (;;) {
112 if (interactive) {
113 fputs("> ", stderr);
114 fflush(stderr);
115 }
116 if (!fgets(line, sizeof(line), stdin))
117 break;
118 char *ptr = line;
119 while (csspace(*ptr))
120 ptr++;
121 if (*ptr == '\0')
122 continue;
123 search_list_iterator iter(&list, line);
124 const char *start;
125 int len;
126 int count;
127 for (count = 0; iter.next(&start, &len); count++) {
128 if (fwrite(start, 1, len, stdout) != (size_t)len)
129 fatal("write error on stdout: %1", strerror(errno));
130 // Can happen for last reference in file.
131 if (start[len - 1] != '\n')
132 putchar('\n');
133 putchar('\n');
134 }
135 fflush(stdout);
136 if (interactive) {
137 fprintf(stderr, "%d found\n", count);
138 fflush(stderr);
139 }
140 }
141 if (interactive)
142 putc('\n', stderr);
143 return 0;
144 }
145
146