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extern/rapidjson/include/rapidjson/filestream.h
- This file was added.
| // Copyright (C) 2011 Milo Yip | |||||
| // | |||||
| // Permission is hereby granted, free of charge, to any person obtaining a copy | |||||
| // of this software and associated documentation files (the "Software"), to deal | |||||
| // in the Software without restriction, including without limitation the rights | |||||
| // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |||||
| // copies of the Software, and to permit persons to whom the Software is | |||||
| // furnished to do so, subject to the following conditions: | |||||
| // | |||||
| // The above copyright notice and this permission notice shall be included in | |||||
| // all copies or substantial portions of the Software. | |||||
| // | |||||
| // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |||||
| // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |||||
| // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | |||||
| // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |||||
| // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |||||
| // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN | |||||
| // THE SOFTWARE. | |||||
| #ifndef RAPIDJSON_FILESTREAM_H_ | |||||
| #define RAPIDJSON_FILESTREAM_H_ | |||||
| #include "rapidjson.h" | |||||
| #include <cstdio> | |||||
| namespace rapidjson { | |||||
| //! (Depreciated) Wrapper of C file stream for input or output. | |||||
| /*! | |||||
| This simple wrapper does not check the validity of the stream. | |||||
| \note implements Stream concept | |||||
| \note deprecated: This was only for basic testing in version 0.1, it is found that the performance is very low by using fgetc(). Use FileReadStream instead. | |||||
| */ | |||||
| class FileStream { | |||||
| public: | |||||
| typedef char Ch; //!< Character type. Only support char. | |||||
| FileStream(FILE* fp) : fp_(fp), current_('\0'), count_(0) { Read(); } | |||||
| char Peek() const { return current_; } | |||||
| char Take() { char c = current_; Read(); return c; } | |||||
| size_t Tell() const { return count_; } | |||||
| void Put(char c) { fputc(c, fp_); } | |||||
| void Flush() { fflush(fp_); } | |||||
| // Not implemented | |||||
| char* PutBegin() { return 0; } | |||||
| size_t PutEnd(char*) { return 0; } | |||||
| private: | |||||
| // Prohibit copy constructor & assignment operator. | |||||
| FileStream(const FileStream&); | |||||
| FileStream& operator=(const FileStream&); | |||||
| void Read() { | |||||
| RAPIDJSON_ASSERT(fp_ != 0); | |||||
| int c = fgetc(fp_); | |||||
| if (c != EOF) { | |||||
| current_ = (char)c; | |||||
| count_++; | |||||
| } | |||||
| else if (current_ != '\0') | |||||
| current_ = '\0'; | |||||
| } | |||||
| FILE* fp_; | |||||
| char current_; | |||||
| size_t count_; | |||||
| }; | |||||
| } // namespace rapidjson | |||||
| #endif // RAPIDJSON_FILESTREAM_H_ | |||||