mirror of https://gitee.com/openkylin/wget.git
121 lines
3.0 KiB
C
121 lines
3.0 KiB
C
/* Lowercase mapping for UTF-8 strings (locale dependent).
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Copyright (C) 2009-2019 Free Software Foundation, Inc.
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Written by Bruno Haible <bruno@clisp.org>, 2009.
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This program is free software: you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published
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by the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program 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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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this 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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#include <stddef.h>
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#include "unicase/unicasemap.h"
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#include "unicase/special-casing.h"
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uint8_t *
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u8_tolower (const uint8_t *s, size_t n, const char *iso639_language,
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uninorm_t nf,
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uint8_t *resultbuf, size_t *lengthp)
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{
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return u8_casemap (s, n,
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unicase_empty_prefix_context, unicase_empty_suffix_context,
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iso639_language,
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uc_tolower, offsetof (struct special_casing_rule, lower[0]),
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nf,
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resultbuf, lengthp);
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}
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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 lower case of the 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_tolower ((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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