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/* Lowercase mapping for UTF-8 strings (locale dependent).
Copyright (C) 2009-2024 Free Software Foundation, Inc.
Written by Bruno Haible <bruno@clisp.org>, 2009.
This file is free software.
It is dual-licensed under "the GNU LGPLv3+ or the GNU GPLv2+".
You can redistribute it and/or modify it under either
- the terms of the GNU Lesser General Public License as published
by the Free Software Foundation, either version 3, or (at your
option) any later version, or
- 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, or
- the same dual license "the GNU LGPLv3+ or the GNU GPLv2+".
This file 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
Lesser General Public License and the GNU General Public License
for more details.
You should have received a copy of the GNU Lesser General Public
License and of the GNU General Public License along with this
program. If not, see <https://www.gnu.org/licenses/>. */
#include <config.h>
/* Specification. */
#include "unicase.h"
#include <stddef.h>
#include "unicase/unicasemap.h"
#include "unicase/special-casing.h"
uint8_t *
u8_tolower (const uint8_t *s, size_t n, const char *iso639_language,
uninorm_t nf,
uint8_t *resultbuf, size_t *lengthp)
{
return u8_casemap (s, n,
unicase_empty_prefix_context, unicase_empty_suffix_context,
iso639_language,
uc_tolower, offsetof (struct special_casing_rule, lower[0]),
nf,
resultbuf, lengthp);
}
#ifdef TEST
#include <locale.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
/* Read the contents of an input stream, and return it, terminated with a NUL
byte. */
char *
read_file (FILE *stream)
{
#define BUFSIZE 4096
char *buf = NULL;
int alloc = 0;
int size = 0;
int count;
while (! feof (stream))
{
if (size + BUFSIZE > alloc)
{
alloc = alloc + alloc / 2;
if (alloc < size + BUFSIZE)
alloc = size + BUFSIZE;
buf = realloc (buf, alloc);
if (buf == NULL)
{
fprintf (stderr, "out of memory\n");
exit (1);
}
}
count = fread (buf + size, 1, BUFSIZE, stream);
if (count == 0)
{
if (ferror (stream))
{
perror ("fread");
exit (1);
}
}
else
size += count;
}
buf = realloc (buf, size + 1);
if (buf == NULL)
{
fprintf (stderr, "out of memory\n");
exit (1);
}
buf[size] = '\0';
return buf;
#undef BUFSIZE
}
int
main (int argc, char * argv[])
{
setlocale (LC_ALL, "");
if (argc == 1)
{
/* Display the lower case of the input string. */
char *input = read_file (stdin);
int length = strlen (input);
size_t output_length;
uint8_t *output =
u8_tolower ((uint8_t *) input, length, uc_locale_language (),
NULL,
NULL, &output_length);
fwrite (output, 1, output_length, stdout);
return 0;
}
else
return 1;
}
#endif /* TEST */
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