diff options
Diffstat (limited to 'modules/brotli/enc/utf8_util.h')
| -rw-r--r-- | modules/brotli/enc/utf8_util.h | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/modules/brotli/enc/utf8_util.h b/modules/brotli/enc/utf8_util.h new file mode 100644 index 0000000000..8fda80c220 --- /dev/null +++ b/modules/brotli/enc/utf8_util.h @@ -0,0 +1,32 @@ +/* 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_ */ |