/* Copyright 2013 Google Inc. All Rights Reserved.
Distributed under MIT license.
See file LICENSE for detail or copy at https://opensource.org/licenses/MIT
*/
/* Heuristics for deciding about the UTF8-ness of strings. */
#ifndef BROTLI_ENC_UTF8_UTIL_H_
#define BROTLI_ENC_UTF8_UTIL_H_
#include <brotli/types.h>
#include "../common/platform.h"
#if defined(__cplusplus) || defined(c_plusplus)
extern
"C"
{
#endif
static
const
double
kMinUTF8Ratio = 0.75;
/* Returns 1 if at least min_fraction of the bytes between pos and
pos + length in the (data, mask) ring-buffer is UTF8-encoded, otherwise
returns 0. */
BROTLI_INTERNAL BROTLI_BOOL BrotliIsMostlyUTF8(
const
uint8_t* data,
const
size_t
pos,
const
size_t
mask,
const
size_t
length,
const
double
min_fraction);
#if defined(__cplusplus) || defined(c_plusplus)
}
/* extern "C" */
#endif
#endif /* BROTLI_ENC_UTF8_UTIL_H_ */