| /* 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 "../common/types.h" | |
| #include "./port.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) ringbuffer 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_ */ |