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Diffstat (limited to 'src/common/rapidjson/encodedstream.h')
| -rw-r--r-- | src/common/rapidjson/encodedstream.h | 290 |
1 files changed, 0 insertions, 290 deletions
diff --git a/src/common/rapidjson/encodedstream.h b/src/common/rapidjson/encodedstream.h deleted file mode 100644 index 9dc00c7af..000000000 --- a/src/common/rapidjson/encodedstream.h +++ /dev/null @@ -1,290 +0,0 @@ -// 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_ENCODEDSTREAM_H_
-#define RAPIDJSON_ENCODEDSTREAM_H_
-
-#include "rapidjson.h"
-
-#ifdef __GNUC__
-RAPIDJSON_DIAG_PUSH
-RAPIDJSON_DIAG_OFF(effc++)
-#endif
-
-namespace rapidjson {
-
-//! Input byte stream wrapper with a statically bound encoding.
-/*!
- \tparam Encoding The interpretation of encoding of the stream. Either UTF8, UTF16LE, UTF16BE, UTF32LE, UTF32BE.
- \tparam InputByteStream Type of input byte stream. For example, FileReadStream.
-*/
-template <typename Encoding, typename InputByteStream>
-class EncodedInputStream {
- RAPIDJSON_STATIC_ASSERT(sizeof(typename InputByteStream::Ch) == 1);
-public:
- typedef typename Encoding::Ch Ch;
-
- EncodedInputStream(InputByteStream& is) : is_(is) {
- current_ = Encoding::TakeBOM(is_);
- }
-
- Ch Peek() const { return current_; }
- Ch Take() { Ch c = current_; current_ = Encoding::Take(is_); return c; }
- size_t Tell() const { return is_.Tell(); }
-
- // Not implemented
- void Put(Ch) { RAPIDJSON_ASSERT(false); }
- void Flush() { RAPIDJSON_ASSERT(false); }
- Ch* PutBegin() { RAPIDJSON_ASSERT(false); return 0; }
- size_t PutEnd(Ch*) { RAPIDJSON_ASSERT(false); return 0; }
-
-private:
- EncodedInputStream(const EncodedInputStream&);
- EncodedInputStream& operator=(const EncodedInputStream&);
-
- InputByteStream& is_;
- Ch current_;
-};
-
-//! Output byte stream wrapper with statically bound encoding.
-/*!
- \tparam Encoding The interpretation of encoding of the stream. Either UTF8, UTF16LE, UTF16BE, UTF32LE, UTF32BE.
- \tparam InputByteStream Type of input byte stream. For example, FileWriteStream.
-*/
-template <typename Encoding, typename OutputByteStream>
-class EncodedOutputStream {
- RAPIDJSON_STATIC_ASSERT(sizeof(typename OutputByteStream::Ch) == 1);
-public:
- typedef typename Encoding::Ch Ch;
-
- EncodedOutputStream(OutputByteStream& os, bool putBOM = true) : os_(os) {
- if (putBOM)
- Encoding::PutBOM(os_);
- }
-
- void Put(Ch c) { Encoding::Put(os_, c); }
- void Flush() { os_.Flush(); }
-
- // Not implemented
- Ch Peek() const { RAPIDJSON_ASSERT(false); }
- Ch Take() { RAPIDJSON_ASSERT(false); }
- size_t Tell() const { RAPIDJSON_ASSERT(false); return 0; }
- Ch* PutBegin() { RAPIDJSON_ASSERT(false); return 0; }
- size_t PutEnd(Ch*) { RAPIDJSON_ASSERT(false); return 0; }
-
-private:
- EncodedOutputStream(const EncodedOutputStream&);
- EncodedOutputStream& operator=(const EncodedOutputStream&);
-
- OutputByteStream& os_;
-};
-
-#define RAPIDJSON_ENCODINGS_FUNC(x) UTF8<Ch>::x, UTF16LE<Ch>::x, UTF16BE<Ch>::x, UTF32LE<Ch>::x, UTF32BE<Ch>::x
-
-//! Input stream wrapper with dynamically bound encoding and automatic encoding detection.
-/*!
- \tparam CharType Type of character for reading.
- \tparam InputByteStream type of input byte stream to be wrapped.
-*/
-template <typename CharType, typename InputByteStream>
-class AutoUTFInputStream {
- RAPIDJSON_STATIC_ASSERT(sizeof(typename InputByteStream::Ch) == 1);
-public:
- typedef CharType Ch;
-
- //! Constructor.
- /*!
- \param is input stream to be wrapped.
- \param type UTF encoding type if it is not detected from the stream.
- */
- AutoUTFInputStream(InputByteStream& is, UTFType type = kUTF8) : is_(&is), type_(type), hasBOM_(false) {
- DetectType();
- static const TakeFunc f[] = { RAPIDJSON_ENCODINGS_FUNC(Take) };
- takeFunc_ = f[type_];
- current_ = takeFunc_(*is_);
- }
-
- UTFType GetType() const { return type_; }
- bool HasBOM() const { return hasBOM_; }
-
- Ch Peek() const { return current_; }
- Ch Take() { Ch c = current_; current_ = takeFunc_(*is_); return c; }
- size_t Tell() const { return is_->Tell(); }
-
- // Not implemented
- void Put(Ch) { RAPIDJSON_ASSERT(false); }
- void Flush() { RAPIDJSON_ASSERT(false); }
- Ch* PutBegin() { RAPIDJSON_ASSERT(false); return 0; }
- size_t PutEnd(Ch*) { RAPIDJSON_ASSERT(false); return 0; }
-
-private:
- AutoUTFInputStream(const AutoUTFInputStream&);
- AutoUTFInputStream& operator=(const AutoUTFInputStream&);
-
- // Detect encoding type with BOM or RFC 4627
- void DetectType() {
- // BOM (Byte Order Mark):
- // 00 00 FE FF UTF-32BE
- // FF FE 00 00 UTF-32LE
- // FE FF UTF-16BE
- // FF FE UTF-16LE
- // EF BB BF UTF-8
-
- const unsigned char* c = (const unsigned char *)is_->Peek4();
- if (!c)
- return;
-
- unsigned bom = c[0] | (c[1] << 8) | (c[2] << 16) | (c[3] << 24);
- hasBOM_ = false;
- if (bom == 0xFFFE0000) { type_ = kUTF32BE; hasBOM_ = true; is_->Take(); is_->Take(); is_->Take(); is_->Take(); }
- else if (bom == 0x0000FEFF) { type_ = kUTF32LE; hasBOM_ = true; is_->Take(); is_->Take(); is_->Take(); is_->Take(); }
- else if ((bom & 0xFFFF) == 0xFFFE) { type_ = kUTF16BE; hasBOM_ = true; is_->Take(); is_->Take(); }
- else if ((bom & 0xFFFF) == 0xFEFF) { type_ = kUTF16LE; hasBOM_ = true; is_->Take(); is_->Take(); }
- else if ((bom & 0xFFFFFF) == 0xBFBBEF) { type_ = kUTF8; hasBOM_ = true; is_->Take(); is_->Take(); is_->Take(); }
-
- // RFC 4627: Section 3
- // "Since the first two characters of a JSON text will always be ASCII
- // characters [RFC0020], it is possible to determine whether an octet
- // stream is UTF-8, UTF-16 (BE or LE), or UTF-32 (BE or LE) by looking
- // at the pattern of nulls in the first four octets."
- // 00 00 00 xx UTF-32BE
- // 00 xx 00 xx UTF-16BE
- // xx 00 00 00 UTF-32LE
- // xx 00 xx 00 UTF-16LE
- // xx xx xx xx UTF-8
-
- if (!hasBOM_) {
- unsigned pattern = (c[0] ? 1 : 0) | (c[1] ? 2 : 0) | (c[2] ? 4 : 0) | (c[3] ? 8 : 0);
- switch (pattern) {
- case 0x08: type_ = kUTF32BE; break;
- case 0x0A: type_ = kUTF16BE; break;
- case 0x01: type_ = kUTF32LE; break;
- case 0x05: type_ = kUTF16LE; break;
- case 0x0F: type_ = kUTF8; break;
- default: break; // Use type defined by user.
- }
- }
-
- // Runtime check whether the size of character type is sufficient. It only perform checks with assertion.
- switch (type_) {
- case kUTF8:
- // Do nothing
- break;
- case kUTF16LE:
- case kUTF16BE:
- RAPIDJSON_ASSERT(sizeof(Ch) >= 2);
- break;
- case kUTF32LE:
- case kUTF32BE:
- RAPIDJSON_ASSERT(sizeof(Ch) >= 4);
- break;
- default:
- RAPIDJSON_ASSERT(false); // Invalid type
- }
- }
-
- typedef Ch (*TakeFunc)(InputByteStream& is);
- InputByteStream* is_;
- UTFType type_;
- Ch current_;
- TakeFunc takeFunc_;
- bool hasBOM_;
-};
-
-//! Output stream wrapper with dynamically bound encoding and automatic encoding detection.
-/*!
- \tparam CharType Type of character for writing.
- \tparam InputByteStream type of output byte stream to be wrapped.
-*/
-template <typename CharType, typename OutputByteStream>
-class AutoUTFOutputStream {
- RAPIDJSON_STATIC_ASSERT(sizeof(typename OutputByteStream::Ch) == 1);
-public:
- typedef CharType Ch;
-
- //! Constructor.
- /*!
- \param os output stream to be wrapped.
- \param type UTF encoding type.
- \param putBOM Whether to write BOM at the beginning of the stream.
- */
- AutoUTFOutputStream(OutputByteStream& os, UTFType type, bool putBOM) : os_(&os), type_(type) {
- // RUntime check whether the size of character type is sufficient. It only perform checks with assertion.
- switch (type_) {
- case kUTF16LE:
- case kUTF16BE:
- RAPIDJSON_ASSERT(sizeof(Ch) >= 2);
- break;
- case kUTF32LE:
- case kUTF32BE:
- RAPIDJSON_ASSERT(sizeof(Ch) >= 4);
- break;
- case kUTF8:
- // Do nothing
- break;
- default:
- RAPIDJSON_ASSERT(false); // Invalid UTFType
- }
-
- static const PutFunc f[] = { RAPIDJSON_ENCODINGS_FUNC(Put) };
- putFunc_ = f[type_];
-
- if (putBOM)
- PutBOM();
- }
-
- UTFType GetType() const { return type_; }
-
- void Put(Ch c) { putFunc_(*os_, c); }
- void Flush() { os_->Flush(); }
-
- // Not implemented
- Ch Peek() const { RAPIDJSON_ASSERT(false); }
- Ch Take() { RAPIDJSON_ASSERT(false); }
- size_t Tell() const { RAPIDJSON_ASSERT(false); return 0; }
- Ch* PutBegin() { RAPIDJSON_ASSERT(false); return 0; }
- size_t PutEnd(Ch*) { RAPIDJSON_ASSERT(false); return 0; }
-
-private:
- AutoUTFOutputStream(const AutoUTFOutputStream&);
- AutoUTFOutputStream& operator=(const AutoUTFOutputStream&);
-
- void PutBOM() {
- typedef void (*PutBOMFunc)(OutputByteStream&);
- static const PutBOMFunc f[] = { RAPIDJSON_ENCODINGS_FUNC(PutBOM) };
- f[type_](*os_);
- }
-
- typedef void (*PutFunc)(OutputByteStream&, Ch);
-
- OutputByteStream* os_;
- UTFType type_;
- PutFunc putFunc_;
-};
-
-#undef RAPIDJSON_ENCODINGS_FUNC
-
-} // namespace rapidjson
-
-#ifdef __GNUC__
-RAPIDJSON_DIAG_POP
-#endif
-
-#endif // RAPIDJSON_FILESTREAM_H_
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