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- // -*- C++ -*-
- /* Copyright (C) 1989, 1990, 1991, 1992 Free Software Foundation, Inc.
- Written by James Clark (jjc@jclark.com)
-
- This file is part of groff.
-
- groff is free software; you can redistribute it and/or modify it under
- the terms of the GNU General Public License as published by the Free
- Software Foundation; either version 2, or (at your option) any later
- version.
-
- groff is distributed in the hope that it will be useful, but WITHOUT ANY
- WARRANTY; without even the implied warranty of MERCHANTABILITY or
- FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
- for more details.
-
- You should have received a copy of the GNU General Public License along
- with groff; see the file COPYING. If not, write to the Free Software
- Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
-
- #include <stdio.h>
- #include <stdlib.h>
- #include </gnu/include/string.h>
- #include <assert.h>
- #include <errno.h>
-
- #include "errarg.h"
- #include "error.h"
- #include "lib.h"
- #include "cset.h"
-
- #include "refid.h"
- #include "search.h"
-
- extern "C" {
- int isatty(int);
- }
-
- static void usage()
- {
- fprintf(stderr, "usage: %s [-v] [-i XYZ] [-t N] database ...\n",
- program_name);
- exit(1);
- }
-
- int main(int argc, char **argv)
- {
- program_name = argv[0];
- static char stderr_buf[BUFSIZ];
- setbuf(stderr, stderr_buf);
- int opt;
- while ((opt = getopt(argc, argv, "vVi:t:")) != EOF)
- switch (opt) {
- case 'V':
- verify_flag = 1;
- break;
- case 'i':
- linear_ignore_fields = optarg;
- break;
- case 't':
- {
- char *ptr;
- long n = strtol(optarg, &ptr, 10);
- if (n == 0 && ptr == optarg) {
- error("bad integer `%1' in `t' option", optarg);
- break;
- }
- if (n < 1)
- n = 1;
- linear_truncate_len = int(n);
- break;
- }
- case 'v':
- {
- extern const char *version_string;
- fprintf(stderr, "GNU lookbib version %s\n", version_string);
- fflush(stderr);
- break;
- }
- case '?':
- usage();
- default:
- assert(0);
- }
- if (optind >= argc)
- usage();
- search_list list;
- for (int i = optind; i < argc; i++)
- list.add_file(argv[i]);
- if (list.nfiles() == 0)
- fatal("no databases");
- char line[1024];
- int interactive = isatty(fileno(stdin));
- for (;;) {
- if (interactive) {
- fputs("> ", stderr);
- fflush(stderr);
- }
- if (!fgets(line, sizeof(line), stdin))
- break;
- char *ptr = line;
- while (csspace(*ptr))
- ptr++;
- if (*ptr == '\0')
- continue;
- search_list_iterator iter(&list, line);
- const char *start;
- int len;
- for (int count = 0; iter.next(&start, &len); count++) {
- if (fwrite(start, 1, len, stdout) != len)
- fatal("write error on stdout: %1", strerror(errno));
- // Can happen for last reference in file.
- if (start[len - 1] != '\n')
- putchar('\n');
- putchar('\n');
- }
- fflush(stdout);
- if (interactive) {
- fprintf(stderr, "%d found\n", count);
- fflush(stderr);
- }
- }
- if (interactive)
- putc('\n', stderr);
- return 0;
- }
-
-