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