116 lines
2.9 KiB
C
116 lines
2.9 KiB
C
/* Casefolding mapping for UTF-8 strings (locale dependent).
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Copyright (C) 2009-2024 Free Software Foundation, Inc.
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Written by Bruno Haible <bruno@clisp.org>, 2009.
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This file is free software.
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It is dual-licensed under "the GNU LGPLv3+ or the GNU GPLv2+".
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You can redistribute it and/or modify it under either
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- the terms of the GNU Lesser General Public License as published
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by the Free Software Foundation, either version 3, or (at your
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option) any later version, or
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- the terms of the GNU General Public License as published by the
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Free Software Foundation; either version 2, or (at your option)
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any later version, or
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- the same dual license "the GNU LGPLv3+ or the GNU GPLv2+".
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This file is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License and 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 Lesser General Public
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License and of the GNU General Public License along with this
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program. If not, see <https://www.gnu.org/licenses/>. */
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#include <config.h>
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/* Specification. */
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#include "unicase.h"
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#define FUNC u8_casefold
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#define UNIT uint8_t
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#define U_CT_CASEFOLD u8_ct_casefold
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#include "u-casefold.h"
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#ifdef TEST
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#include <locale.h>
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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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/* Read the contents of an input stream, and return it, terminated with a NUL
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byte. */
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char *
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read_file (FILE *stream)
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{
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#define BUFSIZE 4096
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char *buf = NULL;
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int alloc = 0;
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int size = 0;
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int count;
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while (! feof (stream))
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{
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if (size + BUFSIZE > alloc)
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{
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alloc = alloc + alloc / 2;
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if (alloc < size + BUFSIZE)
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alloc = size + BUFSIZE;
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buf = realloc (buf, alloc);
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if (buf == NULL)
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{
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fprintf (stderr, "out of memory\n");
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exit (1);
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}
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}
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count = fread (buf + size, 1, BUFSIZE, stream);
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if (count == 0)
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{
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if (ferror (stream))
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{
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perror ("fread");
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exit (1);
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}
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}
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else
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size += count;
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}
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buf = realloc (buf, size + 1);
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if (buf == NULL)
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{
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fprintf (stderr, "out of memory\n");
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exit (1);
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}
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buf[size] = '\0';
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return buf;
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#undef BUFSIZE
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}
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int
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main (int argc, char * argv[])
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{
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setlocale (LC_ALL, "");
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if (argc == 1)
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{
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/* Display the case folded input string. */
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char *input = read_file (stdin);
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int length = strlen (input);
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size_t output_length;
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uint8_t *output =
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u8_casefold ((uint8_t *) input, length, uc_locale_language (),
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NULL,
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NULL, &output_length);
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fwrite (output, 1, output_length, stdout);
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return 0;
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}
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else
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return 1;
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}
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#endif /* TEST */
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