freebsd-dev/contrib/groff/lkbib/lkbib.cc
1996-09-07 16:18:32 +00:00

125 lines
3.0 KiB
C++

// -*- 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, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
#include <stdlib.h>
#include <stdio.h>
#include <errno.h>
#include <string.h>
#include <assert.h>
#include "lib.h"
#include "errarg.h"
#include "error.h"
#include "defs.h"
#include "refid.h"
#include "search.h"
static void usage()
{
fprintf(stderr, "usage: %s [-nv] [-p database] [-i XYZ] [-t N] keys ...\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 search_default = 1;
search_list list;
int opt;
while ((opt = getopt(argc, argv, "nvVi:t:p:")) != EOF)
switch (opt) {
case 'V':
verify_flag = 1;
break;
case 'n':
search_default = 0;
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 lkbib version %s\n", version_string);
fflush(stderr);
break;
}
case 'p':
list.add_file(optarg);
break;
case '?':
usage();
default:
assert(0);
}
if (optind >= argc)
usage();
char *filename = getenv("REFER");
if (filename)
list.add_file(filename);
else if (search_default)
list.add_file(DEFAULT_INDEX, 1);
if (list.nfiles() == 0)
fatal("no databases");
int total_len = 0;
int i;
for (i = optind; i < argc; i++)
total_len += strlen(argv[i]);
total_len += argc - optind - 1 + 1; // for spaces and '\0'
char *buffer = new char[total_len];
char *ptr = buffer;
for (i = optind; i < argc; i++) {
if (i > optind)
*ptr++ = ' ';
strcpy(ptr, argv[i]);
ptr = strchr(ptr, '\0');
}
search_list_iterator iter(&list, buffer);
const char *start;
int len;
int count;
for (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');
}
return !count;
}