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/* Copyright 2016 The Chromium OS Authors. All rights reserved.
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include <sys/types.h>
/* Checks if a string is valid UTF-8.
*
* Supports 1 to 4 character UTF-8 sequences. Passes tests here:
* https://www.cl.cam.ac.uk/~mgk25/ucs/examples/UTF-8-test.txt
*
* Exceptions: The following unicode non-characters are allowed:
* U+FFFE, U+FFFF, U+FDD0 - U+FDEF, U+nFFFE (n = 1 - 10),
* U+nFFFD (n = 1 - 10).
*
* Args:
* string[in] - a string.
* bad_pos[out] - position of the first bad character.
*
* Returns:
* 1 if it is a vlid utf-8 string. 0 otherwise.
* bad_pos contains the strlen() of the string if it is
* valid.
*/
int valid_utf8_string(const char *string, size_t *bad_pos);
/* Checks if a string is a valid utf-8 string.
*
* Args:
* string[in] - a string.
*
* Returns:
* 1 if it is a valid utf-8 string. 0 otherwise.
*/
int is_utf8_string(const char *string);
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