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/* GNU Mailutils -- a suite of utilities for electronic mail
Copyright (C) 1999-2019 Free Software Foundation, Inc.
GNU Mailutils 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 3, or (at your option)
any later version.
GNU Mailutils 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 GNU Mailutils. If not, see <http://www.gnu.org/licenses/>. */
#include "imap4d.h"
#include <stdlib.h>
#include <unicase.h>
#include <unistr.h>
#include <string.h>
void
unistr_downcase (char const *input, char **output)
{
size_t len;
uint8_t *result = u8_tolower ((const uint8_t *)input, strlen (input)+1,
NULL, NULL, NULL, &len);
*output = (char*)result;
}
int
unistr_is_substring (char const *haystack, char const *needle)
{
char *lc;
int result;
unistr_downcase (haystack, &lc);
result = u8_strstr ((const uint8_t*) lc, (const uint8_t*) needle) != NULL;
free (lc);
return result;
}
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