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/*
* Copyright (c) 2009, 2010 Nicira, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef UNICODE_H
#define UNICODE_H 1
#include <stdbool.h>
#include <stddef.h>
#include "compiler.h"
/* Returns true if 'c' is a Unicode code point, otherwise false. */
static inline bool
uc_is_code_point(int c)
{
return c >= 0 && c <= 0x10ffff;
}
/* Returns true if 'c' is a Unicode code point for a leading surrogate. */
static inline bool
uc_is_leading_surrogate(int c)
{
return c >= 0xd800 && c <= 0xdbff;
}
/* Returns true if 'c' is a Unicode code point for a trailing surrogate. */
static inline bool
uc_is_trailing_surrogate(int c)
{
return c >= 0xdc00 && c <= 0xdfff;
}
/* Returns true if 'c' is a Unicode code point for a leading or trailing
* surrogate. */
static inline bool
uc_is_surrogate(int c)
{
return c >= 0xd800 && c <= 0xdfff;
}
int utf16_decode_surrogate_pair(int leading, int trailing);
size_t utf8_length(const char *);
char *utf8_validate(const char *, size_t *lengthp) WARN_UNUSED_RESULT;
#endif /* unicode.h */
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