| /* 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/platform.h" |
| #include <brotli/types.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_ */ |
