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unaccent.c    138 lines (116 with data), 3.9 kB

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/*
* Copyright (C) 2000, 2001 Loic Dachary
*
* This program 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 of the License, or
* (at your option) any later version.
*
* This program 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 this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif /* HAVE_CONFIG_H */
#include <string.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <getopt.h>
#include "unac.h"
static int usage(const char* message)
{
fprintf(stderr,
"%s"
"usage: unaccent [--debug_low] [--debug_high] [--help|-h]\n"
"\t\t<charset> [<string>] [<expected>]\n"
"\tVersion "UNAC_VERSION"\n"
"\tReads input from stdin and remove accents from each line,\n"
"\tassuming it is encoded in <charset> (iconv -l shows a list of\n"
"\tall available charsets).\n"
"\tIf <string> is provided, remove accents from <string>.\n"
"\tIf <expected> is provided, compare the result and exit on error\n"
"\tif not equal. \n"
"\tThe unaccented result is always output on stdout.\n",
message);
exit(1);
}
int main(int argc, char** argv) {
int c;
static int debug_level = UNAC_DEBUG_NONE;
while (1) {
int option_index = 0;
static struct option long_options[] = {
{"debug_low", no_argument, &debug_level, UNAC_DEBUG_LOW},
{"debug_high", no_argument, &debug_level, UNAC_DEBUG_HIGH},
{"help", no_argument, 0, 0},
{0, 0, 0, 0}
};
c = getopt_long (argc, argv, "h",
long_options, &option_index);
if (c == -1)
break;
switch (c) {
case 0:
break;
case '?':
break;
default:
usage("");
break;
}
}
#ifdef UNAC_DEBUG_AVAILABLE
unac_debug(debug_level);
#else /* UNAC_DEBUG_AVAILABLE */
if(debug_level > UNAC_DEBUG_NONE)
fprintf(stderr, "debug is not available, means vsnprintf was not found by configure\n");
#endif /* UNAC_DEBUG_AVAILABLE */
if(optind >= argc)
usage("missing <charset>\n");
else {
const char* charset = argv[optind++];
char* unaccented = 0;
int unaccented_length = 0;
if(optind >= argc) {
#define BUFFER_SIZE 10240
char buffer[BUFFER_SIZE];
while(fgets(buffer, BUFFER_SIZE, stdin)) {
if(unac_string(charset, buffer, strlen(buffer), &unaccented, &unaccented_length) < 0) {
fprintf(stderr, "unac_string attempt to unaccent %s with charset %s failed: ", buffer, charset);
perror("");
exit(1);
}
printf("%.*s", unaccented_length, unaccented);
}
} else {
const char* string = argv[optind++];
if(unac_string(charset, string, strlen(string), &unaccented, &unaccented_length) < 0) {
fprintf(stderr, "unac_string attempt to unaccent %s with charset %s failed: ", string, charset);
perror("");
exit(1);
}
if(debug_level > UNAC_DEBUG_NONE)
fprintf(stderr, "unaccented version is");
printf("%.*s\n", unaccented_length, unaccented);
if(optind < argc) {
const char* expected = argv[optind++];
if(unaccented_length != strlen(expected) ||
!memcpy(unaccented, expected, unaccented_length)) {
if(debug_level > UNAC_DEBUG_NONE)
fprintf(stderr, "attempt to unaccent %s with charset %s does not match expected string %s\n", string, charset, expected);
free(unaccented);
return 1;
}
}
}
free(unaccented);
}
return 0;
}