// Tencent is pleased to support the open source community by making RapidJSON available. // // Copyright (C) 2015 THL A29 Limited, a Tencent company, and Milo Yip. All rights reserved. // // Licensed under the MIT License (the "License"); you may not use this file except // in compliance with the License. You may obtain a copy of the License at // // http://opensource.org/licenses/MIT // // 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 RAPIDJSON_INTERNAL_STRFUNC_H_ #define RAPIDJSON_INTERNAL_STRFUNC_H_ #include "../stream.h" RAPIDJSON_NAMESPACE_BEGIN namespace internal { //! Custom strlen() which works on different character types. /*! \tparam Ch Character type (e.g. char, wchar_t, short) \param s Null-terminated input string. \return Number of characters in the string. \note This has the same semantics as strlen(), the return value is not number of Unicode codepoints. */ template <typename Ch> inline SizeType StrLen(const Ch* s) { const Ch* p = s; while (*p) ++p; return SizeType(p - s); } //! Returns number of code points in a encoded string. template<typename Encoding> bool CountStringCodePoint(const typename Encoding::Ch* s, SizeType length, SizeType* outCount) { GenericStringStream<Encoding> is(s); const typename Encoding::Ch* end = s + length; SizeType count = 0; while (is.src_ < end) { unsigned codepoint; if (!Encoding::Decode(is, &codepoint)) return false; count++; } *outCount = count; return true; } } // namespace internal RAPIDJSON_NAMESPACE_END #endif // RAPIDJSON_INTERNAL_STRFUNC_H_