Upgrade RapidJSON to get rid of a clang warning

pull/1477/head
Turo Lamminen 2017-10-05 11:10:22 +03:00
parent ae8a4c0c62
commit 9f5b58e706
33 changed files with 6467 additions and 1022 deletions

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@ -179,9 +179,10 @@ public:
size = RAPIDJSON_ALIGN(size); size = RAPIDJSON_ALIGN(size);
if (chunkHead_ == 0 || chunkHead_->size + size > chunkHead_->capacity) if (chunkHead_ == 0 || chunkHead_->size + size > chunkHead_->capacity)
AddChunk(chunk_capacity_ > size ? chunk_capacity_ : size); if (!AddChunk(chunk_capacity_ > size ? chunk_capacity_ : size))
return NULL;
void *buffer = reinterpret_cast<char *>(chunkHead_ + 1) + chunkHead_->size; void *buffer = reinterpret_cast<char *>(chunkHead_) + RAPIDJSON_ALIGN(sizeof(ChunkHeader)) + chunkHead_->size;
chunkHead_->size += size; chunkHead_->size += size;
return buffer; return buffer;
} }
@ -194,14 +195,16 @@ public:
if (newSize == 0) if (newSize == 0)
return NULL; return NULL;
originalSize = RAPIDJSON_ALIGN(originalSize);
newSize = RAPIDJSON_ALIGN(newSize);
// Do not shrink if new size is smaller than original // Do not shrink if new size is smaller than original
if (originalSize >= newSize) if (originalSize >= newSize)
return originalPtr; return originalPtr;
// Simply expand it if it is the last allocation and there is sufficient space // Simply expand it if it is the last allocation and there is sufficient space
if (originalPtr == (char *)(chunkHead_ + 1) + chunkHead_->size - originalSize) { if (originalPtr == reinterpret_cast<char *>(chunkHead_) + RAPIDJSON_ALIGN(sizeof(ChunkHeader)) + chunkHead_->size - originalSize) {
size_t increment = static_cast<size_t>(newSize - originalSize); size_t increment = static_cast<size_t>(newSize - originalSize);
increment = RAPIDJSON_ALIGN(increment);
if (chunkHead_->size + increment <= chunkHead_->capacity) { if (chunkHead_->size + increment <= chunkHead_->capacity) {
chunkHead_->size += increment; chunkHead_->size += increment;
return originalPtr; return originalPtr;
@ -209,12 +212,14 @@ public:
} }
// Realloc process: allocate and copy memory, do not free original buffer. // Realloc process: allocate and copy memory, do not free original buffer.
void* newBuffer = Malloc(newSize); if (void* newBuffer = Malloc(newSize)) {
RAPIDJSON_ASSERT(newBuffer != 0); // Do not handle out-of-memory explicitly.
if (originalSize) if (originalSize)
std::memcpy(newBuffer, originalPtr, originalSize); std::memcpy(newBuffer, originalPtr, originalSize);
return newBuffer; return newBuffer;
} }
else
return NULL;
}
//! Frees a memory block (concept Allocator) //! Frees a memory block (concept Allocator)
static void Free(void *ptr) { (void)ptr; } // Do nothing static void Free(void *ptr) { (void)ptr; } // Do nothing
@ -227,15 +232,20 @@ private:
//! Creates a new chunk. //! Creates a new chunk.
/*! \param capacity Capacity of the chunk in bytes. /*! \param capacity Capacity of the chunk in bytes.
\return true if success.
*/ */
void AddChunk(size_t capacity) { bool AddChunk(size_t capacity) {
if (!baseAllocator_) if (!baseAllocator_)
ownBaseAllocator_ = baseAllocator_ = RAPIDJSON_NEW(BaseAllocator()); ownBaseAllocator_ = baseAllocator_ = RAPIDJSON_NEW(BaseAllocator)();
ChunkHeader* chunk = reinterpret_cast<ChunkHeader*>(baseAllocator_->Malloc(sizeof(ChunkHeader) + capacity)); if (ChunkHeader* chunk = reinterpret_cast<ChunkHeader*>(baseAllocator_->Malloc(RAPIDJSON_ALIGN(sizeof(ChunkHeader)) + capacity))) {
chunk->capacity = capacity; chunk->capacity = capacity;
chunk->size = 0; chunk->size = 0;
chunk->next = chunkHead_; chunk->next = chunkHead_;
chunkHead_ = chunk; chunkHead_ = chunk;
return true;
}
else
return false;
} }
static const int kDefaultChunkCapacity = 64 * 1024; //!< Default chunk capacity. static const int kDefaultChunkCapacity = 64 * 1024; //!< Default chunk capacity.

File diff suppressed because it is too large Load Diff

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@ -15,13 +15,19 @@
#ifndef RAPIDJSON_ENCODEDSTREAM_H_ #ifndef RAPIDJSON_ENCODEDSTREAM_H_
#define RAPIDJSON_ENCODEDSTREAM_H_ #define RAPIDJSON_ENCODEDSTREAM_H_
#include "rapidjson.h" #include "stream.h"
#include "memorystream.h"
#ifdef __GNUC__ #ifdef __GNUC__
RAPIDJSON_DIAG_PUSH RAPIDJSON_DIAG_PUSH
RAPIDJSON_DIAG_OFF(effc++) RAPIDJSON_DIAG_OFF(effc++)
#endif #endif
#ifdef __clang__
RAPIDJSON_DIAG_PUSH
RAPIDJSON_DIAG_OFF(padded)
#endif
RAPIDJSON_NAMESPACE_BEGIN RAPIDJSON_NAMESPACE_BEGIN
//! Input byte stream wrapper with a statically bound encoding. //! Input byte stream wrapper with a statically bound encoding.
@ -57,10 +63,38 @@ private:
Ch current_; Ch current_;
}; };
//! Specialized for UTF8 MemoryStream.
template <>
class EncodedInputStream<UTF8<>, MemoryStream> {
public:
typedef UTF8<>::Ch Ch;
EncodedInputStream(MemoryStream& is) : is_(is) {
if (static_cast<unsigned char>(is_.Peek()) == 0xEFu) is_.Take();
if (static_cast<unsigned char>(is_.Peek()) == 0xBBu) is_.Take();
if (static_cast<unsigned char>(is_.Peek()) == 0xBFu) is_.Take();
}
Ch Peek() const { return is_.Peek(); }
Ch Take() { return is_.Take(); }
size_t Tell() const { return is_.Tell(); }
// Not implemented
void Put(Ch) {}
void Flush() {}
Ch* PutBegin() { return 0; }
size_t PutEnd(Ch*) { return 0; }
MemoryStream& is_;
private:
EncodedInputStream(const EncodedInputStream&);
EncodedInputStream& operator=(const EncodedInputStream&);
};
//! Output byte stream wrapper with statically bound encoding. //! Output byte stream wrapper with statically bound encoding.
/*! /*!
\tparam Encoding The interpretation of encoding of the stream. Either UTF8, UTF16LE, UTF16BE, UTF32LE, UTF32BE. \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. \tparam OutputByteStream Type of input byte stream. For example, FileWriteStream.
*/ */
template <typename Encoding, typename OutputByteStream> template <typename Encoding, typename OutputByteStream>
class EncodedOutputStream { class EncodedOutputStream {
@ -77,8 +111,8 @@ public:
void Flush() { os_.Flush(); } void Flush() { os_.Flush(); }
// Not implemented // Not implemented
Ch Peek() const { RAPIDJSON_ASSERT(false); } Ch Peek() const { RAPIDJSON_ASSERT(false); return 0;}
Ch Take() { RAPIDJSON_ASSERT(false); } Ch Take() { RAPIDJSON_ASSERT(false); return 0;}
size_t Tell() const { RAPIDJSON_ASSERT(false); return 0; } size_t Tell() const { RAPIDJSON_ASSERT(false); return 0; }
Ch* PutBegin() { RAPIDJSON_ASSERT(false); return 0; } Ch* PutBegin() { RAPIDJSON_ASSERT(false); return 0; }
size_t PutEnd(Ch*) { RAPIDJSON_ASSERT(false); return 0; } size_t PutEnd(Ch*) { RAPIDJSON_ASSERT(false); return 0; }
@ -142,11 +176,11 @@ private:
// FF FE UTF-16LE // FF FE UTF-16LE
// EF BB BF UTF-8 // EF BB BF UTF-8
const unsigned char* c = (const unsigned char *)is_->Peek4(); const unsigned char* c = reinterpret_cast<const unsigned char *>(is_->Peek4());
if (!c) if (!c)
return; return;
unsigned bom = c[0] | (c[1] << 8) | (c[2] << 16) | (c[3] << 24); unsigned bom = static_cast<unsigned>(c[0] | (c[1] << 8) | (c[2] << 16) | (c[3] << 24));
hasBOM_ = false; hasBOM_ = false;
if (bom == 0xFFFE0000) { type_ = kUTF32BE; hasBOM_ = true; is_->Take(); is_->Take(); is_->Take(); is_->Take(); } 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 == 0x0000FEFF) { type_ = kUTF32LE; hasBOM_ = true; is_->Take(); is_->Take(); is_->Take(); is_->Take(); }
@ -166,7 +200,7 @@ private:
// xx xx xx xx UTF-8 // xx xx xx xx UTF-8
if (!hasBOM_) { if (!hasBOM_) {
unsigned pattern = (c[0] ? 1 : 0) | (c[1] ? 2 : 0) | (c[2] ? 4 : 0) | (c[3] ? 8 : 0); int pattern = (c[0] ? 1 : 0) | (c[1] ? 2 : 0) | (c[2] ? 4 : 0) | (c[3] ? 8 : 0);
switch (pattern) { switch (pattern) {
case 0x08: type_ = kUTF32BE; break; case 0x08: type_ = kUTF32BE; break;
case 0x0A: type_ = kUTF16BE; break; case 0x0A: type_ = kUTF16BE; break;
@ -193,7 +227,7 @@ private:
//! Output stream wrapper with dynamically bound encoding and automatic encoding detection. //! Output stream wrapper with dynamically bound encoding and automatic encoding detection.
/*! /*!
\tparam CharType Type of character for writing. \tparam CharType Type of character for writing.
\tparam InputByteStream type of output byte stream to be wrapped. \tparam OutputByteStream type of output byte stream to be wrapped.
*/ */
template <typename CharType, typename OutputByteStream> template <typename CharType, typename OutputByteStream>
class AutoUTFOutputStream { class AutoUTFOutputStream {
@ -227,8 +261,8 @@ public:
void Flush() { os_->Flush(); } void Flush() { os_->Flush(); }
// Not implemented // Not implemented
Ch Peek() const { RAPIDJSON_ASSERT(false); } Ch Peek() const { RAPIDJSON_ASSERT(false); return 0;}
Ch Take() { RAPIDJSON_ASSERT(false); } Ch Take() { RAPIDJSON_ASSERT(false); return 0;}
size_t Tell() const { RAPIDJSON_ASSERT(false); return 0; } size_t Tell() const { RAPIDJSON_ASSERT(false); return 0; }
Ch* PutBegin() { RAPIDJSON_ASSERT(false); return 0; } Ch* PutBegin() { RAPIDJSON_ASSERT(false); return 0; }
size_t PutEnd(Ch*) { RAPIDJSON_ASSERT(false); return 0; } size_t PutEnd(Ch*) { RAPIDJSON_ASSERT(false); return 0; }
@ -254,6 +288,10 @@ private:
RAPIDJSON_NAMESPACE_END RAPIDJSON_NAMESPACE_END
#ifdef __clang__
RAPIDJSON_DIAG_POP
#endif
#ifdef __GNUC__ #ifdef __GNUC__
RAPIDJSON_DIAG_POP RAPIDJSON_DIAG_POP
#endif #endif

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@ -120,19 +120,45 @@ struct UTF8 {
} }
} }
template<typename OutputStream>
static void EncodeUnsafe(OutputStream& os, unsigned codepoint) {
if (codepoint <= 0x7F)
PutUnsafe(os, static_cast<Ch>(codepoint & 0xFF));
else if (codepoint <= 0x7FF) {
PutUnsafe(os, static_cast<Ch>(0xC0 | ((codepoint >> 6) & 0xFF)));
PutUnsafe(os, static_cast<Ch>(0x80 | ((codepoint & 0x3F))));
}
else if (codepoint <= 0xFFFF) {
PutUnsafe(os, static_cast<Ch>(0xE0 | ((codepoint >> 12) & 0xFF)));
PutUnsafe(os, static_cast<Ch>(0x80 | ((codepoint >> 6) & 0x3F)));
PutUnsafe(os, static_cast<Ch>(0x80 | (codepoint & 0x3F)));
}
else {
RAPIDJSON_ASSERT(codepoint <= 0x10FFFF);
PutUnsafe(os, static_cast<Ch>(0xF0 | ((codepoint >> 18) & 0xFF)));
PutUnsafe(os, static_cast<Ch>(0x80 | ((codepoint >> 12) & 0x3F)));
PutUnsafe(os, static_cast<Ch>(0x80 | ((codepoint >> 6) & 0x3F)));
PutUnsafe(os, static_cast<Ch>(0x80 | (codepoint & 0x3F)));
}
}
template <typename InputStream> template <typename InputStream>
static bool Decode(InputStream& is, unsigned* codepoint) { static bool Decode(InputStream& is, unsigned* codepoint) {
#define COPY() c = is.Take(); *codepoint = (*codepoint << 6) | ((unsigned char)c & 0x3Fu) #define COPY() c = is.Take(); *codepoint = (*codepoint << 6) | (static_cast<unsigned char>(c) & 0x3Fu)
#define TRANS(mask) result &= ((GetRange((unsigned char)c) & mask) != 0) #define TRANS(mask) result &= ((GetRange(static_cast<unsigned char>(c)) & mask) != 0)
#define TAIL() COPY(); TRANS(0x70) #define TAIL() COPY(); TRANS(0x70)
Ch c = is.Take(); typename InputStream::Ch c = is.Take();
if (!(c & 0x80)) { if (!(c & 0x80)) {
*codepoint = (unsigned char)c; *codepoint = static_cast<unsigned char>(c);
return true; return true;
} }
unsigned char type = GetRange((unsigned char)c); unsigned char type = GetRange(static_cast<unsigned char>(c));
*codepoint = (0xFF >> type) & (unsigned char)c; if (type >= 32) {
*codepoint = 0;
} else {
*codepoint = (0xFFu >> type) & static_cast<unsigned char>(c);
}
bool result = true; bool result = true;
switch (type) { switch (type) {
case 2: TAIL(); return result; case 2: TAIL(); return result;
@ -152,7 +178,7 @@ struct UTF8 {
template <typename InputStream, typename OutputStream> template <typename InputStream, typename OutputStream>
static bool Validate(InputStream& is, OutputStream& os) { static bool Validate(InputStream& is, OutputStream& os) {
#define COPY() os.Put(c = is.Take()) #define COPY() os.Put(c = is.Take())
#define TRANS(mask) result &= ((GetRange((unsigned char)c) & mask) != 0) #define TRANS(mask) result &= ((GetRange(static_cast<unsigned char>(c)) & mask) != 0)
#define TAIL() COPY(); TRANS(0x70) #define TAIL() COPY(); TRANS(0x70)
Ch c; Ch c;
COPY(); COPY();
@ -160,7 +186,7 @@ struct UTF8 {
return true; return true;
bool result = true; bool result = true;
switch (GetRange((unsigned char)c)) { switch (GetRange(static_cast<unsigned char>(c))) {
case 2: TAIL(); return result; case 2: TAIL(); return result;
case 3: TAIL(); TAIL(); return result; case 3: TAIL(); TAIL(); return result;
case 4: COPY(); TRANS(0x50); TAIL(); return result; case 4: COPY(); TRANS(0x50); TAIL(); return result;
@ -196,12 +222,12 @@ struct UTF8 {
template <typename InputByteStream> template <typename InputByteStream>
static CharType TakeBOM(InputByteStream& is) { static CharType TakeBOM(InputByteStream& is) {
RAPIDJSON_STATIC_ASSERT(sizeof(typename InputByteStream::Ch) == 1); RAPIDJSON_STATIC_ASSERT(sizeof(typename InputByteStream::Ch) == 1);
Ch c = Take(is); typename InputByteStream::Ch c = Take(is);
if ((unsigned char)c != 0xEFu) return c; if (static_cast<unsigned char>(c) != 0xEFu) return c;
c = is.Take(); c = is.Take();
if ((unsigned char)c != 0xBBu) return c; if (static_cast<unsigned char>(c) != 0xBBu) return c;
c = is.Take(); c = is.Take();
if ((unsigned char)c != 0xBFu) return c; if (static_cast<unsigned char>(c) != 0xBFu) return c;
c = is.Take(); c = is.Take();
return c; return c;
} }
@ -209,13 +235,15 @@ struct UTF8 {
template <typename InputByteStream> template <typename InputByteStream>
static Ch Take(InputByteStream& is) { static Ch Take(InputByteStream& is) {
RAPIDJSON_STATIC_ASSERT(sizeof(typename InputByteStream::Ch) == 1); RAPIDJSON_STATIC_ASSERT(sizeof(typename InputByteStream::Ch) == 1);
return is.Take(); return static_cast<Ch>(is.Take());
} }
template <typename OutputByteStream> template <typename OutputByteStream>
static void PutBOM(OutputByteStream& os) { static void PutBOM(OutputByteStream& os) {
RAPIDJSON_STATIC_ASSERT(sizeof(typename OutputByteStream::Ch) == 1); RAPIDJSON_STATIC_ASSERT(sizeof(typename OutputByteStream::Ch) == 1);
os.Put(0xEFu); os.Put(0xBBu); os.Put(0xBFu); os.Put(static_cast<typename OutputByteStream::Ch>(0xEFu));
os.Put(static_cast<typename OutputByteStream::Ch>(0xBBu));
os.Put(static_cast<typename OutputByteStream::Ch>(0xBFu));
} }
template <typename OutputByteStream> template <typename OutputByteStream>
@ -255,22 +283,38 @@ struct UTF16 {
RAPIDJSON_ASSERT(codepoint <= 0x10FFFF); RAPIDJSON_ASSERT(codepoint <= 0x10FFFF);
unsigned v = codepoint - 0x10000; unsigned v = codepoint - 0x10000;
os.Put(static_cast<typename OutputStream::Ch>((v >> 10) | 0xD800)); os.Put(static_cast<typename OutputStream::Ch>((v >> 10) | 0xD800));
os.Put((v & 0x3FF) | 0xDC00); os.Put(static_cast<typename OutputStream::Ch>((v & 0x3FF) | 0xDC00));
}
}
template<typename OutputStream>
static void EncodeUnsafe(OutputStream& os, unsigned codepoint) {
RAPIDJSON_STATIC_ASSERT(sizeof(typename OutputStream::Ch) >= 2);
if (codepoint <= 0xFFFF) {
RAPIDJSON_ASSERT(codepoint < 0xD800 || codepoint > 0xDFFF); // Code point itself cannot be surrogate pair
PutUnsafe(os, static_cast<typename OutputStream::Ch>(codepoint));
}
else {
RAPIDJSON_ASSERT(codepoint <= 0x10FFFF);
unsigned v = codepoint - 0x10000;
PutUnsafe(os, static_cast<typename OutputStream::Ch>((v >> 10) | 0xD800));
PutUnsafe(os, static_cast<typename OutputStream::Ch>((v & 0x3FF) | 0xDC00));
} }
} }
template <typename InputStream> template <typename InputStream>
static bool Decode(InputStream& is, unsigned* codepoint) { static bool Decode(InputStream& is, unsigned* codepoint) {
RAPIDJSON_STATIC_ASSERT(sizeof(typename InputStream::Ch) >= 2); RAPIDJSON_STATIC_ASSERT(sizeof(typename InputStream::Ch) >= 2);
Ch c = is.Take(); typename InputStream::Ch c = is.Take();
if (c < 0xD800 || c > 0xDFFF) { if (c < 0xD800 || c > 0xDFFF) {
*codepoint = c; *codepoint = static_cast<unsigned>(c);
return true; return true;
} }
else if (c <= 0xDBFF) { else if (c <= 0xDBFF) {
*codepoint = (c & 0x3FF) << 10; *codepoint = (static_cast<unsigned>(c) & 0x3FF) << 10;
c = is.Take(); c = is.Take();
*codepoint |= (c & 0x3FF); *codepoint |= (static_cast<unsigned>(c) & 0x3FF);
*codepoint += 0x10000; *codepoint += 0x10000;
return c >= 0xDC00 && c <= 0xDFFF; return c >= 0xDC00 && c <= 0xDFFF;
} }
@ -281,8 +325,8 @@ struct UTF16 {
static bool Validate(InputStream& is, OutputStream& os) { static bool Validate(InputStream& is, OutputStream& os) {
RAPIDJSON_STATIC_ASSERT(sizeof(typename InputStream::Ch) >= 2); RAPIDJSON_STATIC_ASSERT(sizeof(typename InputStream::Ch) >= 2);
RAPIDJSON_STATIC_ASSERT(sizeof(typename OutputStream::Ch) >= 2); RAPIDJSON_STATIC_ASSERT(sizeof(typename OutputStream::Ch) >= 2);
Ch c; typename InputStream::Ch c;
os.Put(c = is.Take()); os.Put(static_cast<typename OutputStream::Ch>(c = is.Take()));
if (c < 0xD800 || c > 0xDFFF) if (c < 0xD800 || c > 0xDFFF)
return true; return true;
else if (c <= 0xDBFF) { else if (c <= 0xDBFF) {
@ -300,28 +344,29 @@ struct UTF16LE : UTF16<CharType> {
static CharType TakeBOM(InputByteStream& is) { static CharType TakeBOM(InputByteStream& is) {
RAPIDJSON_STATIC_ASSERT(sizeof(typename InputByteStream::Ch) == 1); RAPIDJSON_STATIC_ASSERT(sizeof(typename InputByteStream::Ch) == 1);
CharType c = Take(is); CharType c = Take(is);
return (unsigned short)c == 0xFEFFu ? Take(is) : c; return static_cast<uint16_t>(c) == 0xFEFFu ? Take(is) : c;
} }
template <typename InputByteStream> template <typename InputByteStream>
static CharType Take(InputByteStream& is) { static CharType Take(InputByteStream& is) {
RAPIDJSON_STATIC_ASSERT(sizeof(typename InputByteStream::Ch) == 1); RAPIDJSON_STATIC_ASSERT(sizeof(typename InputByteStream::Ch) == 1);
CharType c = (unsigned char)is.Take(); unsigned c = static_cast<uint8_t>(is.Take());
c |= (unsigned char)is.Take() << 8; c |= static_cast<unsigned>(static_cast<uint8_t>(is.Take())) << 8;
return c; return static_cast<CharType>(c);
} }
template <typename OutputByteStream> template <typename OutputByteStream>
static void PutBOM(OutputByteStream& os) { static void PutBOM(OutputByteStream& os) {
RAPIDJSON_STATIC_ASSERT(sizeof(typename OutputByteStream::Ch) == 1); RAPIDJSON_STATIC_ASSERT(sizeof(typename OutputByteStream::Ch) == 1);
os.Put(0xFFu); os.Put(0xFEu); os.Put(static_cast<typename OutputByteStream::Ch>(0xFFu));
os.Put(static_cast<typename OutputByteStream::Ch>(0xFEu));
} }
template <typename OutputByteStream> template <typename OutputByteStream>
static void Put(OutputByteStream& os, CharType c) { static void Put(OutputByteStream& os, CharType c) {
RAPIDJSON_STATIC_ASSERT(sizeof(typename OutputByteStream::Ch) == 1); RAPIDJSON_STATIC_ASSERT(sizeof(typename OutputByteStream::Ch) == 1);
os.Put(c & 0xFFu); os.Put(static_cast<typename OutputByteStream::Ch>(static_cast<unsigned>(c) & 0xFFu));
os.Put((c >> 8) & 0xFFu); os.Put(static_cast<typename OutputByteStream::Ch>((static_cast<unsigned>(c) >> 8) & 0xFFu));
} }
}; };
@ -332,28 +377,29 @@ struct UTF16BE : UTF16<CharType> {
static CharType TakeBOM(InputByteStream& is) { static CharType TakeBOM(InputByteStream& is) {
RAPIDJSON_STATIC_ASSERT(sizeof(typename InputByteStream::Ch) == 1); RAPIDJSON_STATIC_ASSERT(sizeof(typename InputByteStream::Ch) == 1);
CharType c = Take(is); CharType c = Take(is);
return (unsigned short)c == 0xFEFFu ? Take(is) : c; return static_cast<uint16_t>(c) == 0xFEFFu ? Take(is) : c;
} }
template <typename InputByteStream> template <typename InputByteStream>
static CharType Take(InputByteStream& is) { static CharType Take(InputByteStream& is) {
RAPIDJSON_STATIC_ASSERT(sizeof(typename InputByteStream::Ch) == 1); RAPIDJSON_STATIC_ASSERT(sizeof(typename InputByteStream::Ch) == 1);
CharType c = (unsigned char)is.Take() << 8; unsigned c = static_cast<unsigned>(static_cast<uint8_t>(is.Take())) << 8;
c |= (unsigned char)is.Take(); c |= static_cast<uint8_t>(is.Take());
return c; return static_cast<CharType>(c);
} }
template <typename OutputByteStream> template <typename OutputByteStream>
static void PutBOM(OutputByteStream& os) { static void PutBOM(OutputByteStream& os) {
RAPIDJSON_STATIC_ASSERT(sizeof(typename OutputByteStream::Ch) == 1); RAPIDJSON_STATIC_ASSERT(sizeof(typename OutputByteStream::Ch) == 1);
os.Put(0xFEu); os.Put(0xFFu); os.Put(static_cast<typename OutputByteStream::Ch>(0xFEu));
os.Put(static_cast<typename OutputByteStream::Ch>(0xFFu));
} }
template <typename OutputByteStream> template <typename OutputByteStream>
static void Put(OutputByteStream& os, CharType c) { static void Put(OutputByteStream& os, CharType c) {
RAPIDJSON_STATIC_ASSERT(sizeof(typename OutputByteStream::Ch) == 1); RAPIDJSON_STATIC_ASSERT(sizeof(typename OutputByteStream::Ch) == 1);
os.Put((c >> 8) & 0xFFu); os.Put(static_cast<typename OutputByteStream::Ch>((static_cast<unsigned>(c) >> 8) & 0xFFu));
os.Put(c & 0xFFu); os.Put(static_cast<typename OutputByteStream::Ch>(static_cast<unsigned>(c) & 0xFFu));
} }
}; };
@ -382,6 +428,13 @@ struct UTF32 {
os.Put(codepoint); os.Put(codepoint);
} }
template<typename OutputStream>
static void EncodeUnsafe(OutputStream& os, unsigned codepoint) {
RAPIDJSON_STATIC_ASSERT(sizeof(typename OutputStream::Ch) >= 4);
RAPIDJSON_ASSERT(codepoint <= 0x10FFFF);
PutUnsafe(os, codepoint);
}
template <typename InputStream> template <typename InputStream>
static bool Decode(InputStream& is, unsigned* codepoint) { static bool Decode(InputStream& is, unsigned* codepoint) {
RAPIDJSON_STATIC_ASSERT(sizeof(typename InputStream::Ch) >= 4); RAPIDJSON_STATIC_ASSERT(sizeof(typename InputStream::Ch) >= 4);
@ -406,32 +459,35 @@ struct UTF32LE : UTF32<CharType> {
static CharType TakeBOM(InputByteStream& is) { static CharType TakeBOM(InputByteStream& is) {
RAPIDJSON_STATIC_ASSERT(sizeof(typename InputByteStream::Ch) == 1); RAPIDJSON_STATIC_ASSERT(sizeof(typename InputByteStream::Ch) == 1);
CharType c = Take(is); CharType c = Take(is);
return (unsigned)c == 0x0000FEFFu ? Take(is) : c; return static_cast<uint32_t>(c) == 0x0000FEFFu ? Take(is) : c;
} }
template <typename InputByteStream> template <typename InputByteStream>
static CharType Take(InputByteStream& is) { static CharType Take(InputByteStream& is) {
RAPIDJSON_STATIC_ASSERT(sizeof(typename InputByteStream::Ch) == 1); RAPIDJSON_STATIC_ASSERT(sizeof(typename InputByteStream::Ch) == 1);
CharType c = (unsigned char)is.Take(); unsigned c = static_cast<uint8_t>(is.Take());
c |= (unsigned char)is.Take() << 8; c |= static_cast<unsigned>(static_cast<uint8_t>(is.Take())) << 8;
c |= (unsigned char)is.Take() << 16; c |= static_cast<unsigned>(static_cast<uint8_t>(is.Take())) << 16;
c |= (unsigned char)is.Take() << 24; c |= static_cast<unsigned>(static_cast<uint8_t>(is.Take())) << 24;
return c; return static_cast<CharType>(c);
} }
template <typename OutputByteStream> template <typename OutputByteStream>
static void PutBOM(OutputByteStream& os) { static void PutBOM(OutputByteStream& os) {
RAPIDJSON_STATIC_ASSERT(sizeof(typename OutputByteStream::Ch) == 1); RAPIDJSON_STATIC_ASSERT(sizeof(typename OutputByteStream::Ch) == 1);
os.Put(0xFFu); os.Put(0xFEu); os.Put(0x00u); os.Put(0x00u); os.Put(static_cast<typename OutputByteStream::Ch>(0xFFu));
os.Put(static_cast<typename OutputByteStream::Ch>(0xFEu));
os.Put(static_cast<typename OutputByteStream::Ch>(0x00u));
os.Put(static_cast<typename OutputByteStream::Ch>(0x00u));
} }
template <typename OutputByteStream> template <typename OutputByteStream>
static void Put(OutputByteStream& os, CharType c) { static void Put(OutputByteStream& os, CharType c) {
RAPIDJSON_STATIC_ASSERT(sizeof(typename OutputByteStream::Ch) == 1); RAPIDJSON_STATIC_ASSERT(sizeof(typename OutputByteStream::Ch) == 1);
os.Put(c & 0xFFu); os.Put(static_cast<typename OutputByteStream::Ch>(c & 0xFFu));
os.Put((c >> 8) & 0xFFu); os.Put(static_cast<typename OutputByteStream::Ch>((c >> 8) & 0xFFu));
os.Put((c >> 16) & 0xFFu); os.Put(static_cast<typename OutputByteStream::Ch>((c >> 16) & 0xFFu));
os.Put((c >> 24) & 0xFFu); os.Put(static_cast<typename OutputByteStream::Ch>((c >> 24) & 0xFFu));
} }
}; };
@ -442,32 +498,35 @@ struct UTF32BE : UTF32<CharType> {
static CharType TakeBOM(InputByteStream& is) { static CharType TakeBOM(InputByteStream& is) {
RAPIDJSON_STATIC_ASSERT(sizeof(typename InputByteStream::Ch) == 1); RAPIDJSON_STATIC_ASSERT(sizeof(typename InputByteStream::Ch) == 1);
CharType c = Take(is); CharType c = Take(is);
return (unsigned)c == 0x0000FEFFu ? Take(is) : c; return static_cast<uint32_t>(c) == 0x0000FEFFu ? Take(is) : c;
} }
template <typename InputByteStream> template <typename InputByteStream>
static CharType Take(InputByteStream& is) { static CharType Take(InputByteStream& is) {
RAPIDJSON_STATIC_ASSERT(sizeof(typename InputByteStream::Ch) == 1); RAPIDJSON_STATIC_ASSERT(sizeof(typename InputByteStream::Ch) == 1);
CharType c = (unsigned char)is.Take() << 24; unsigned c = static_cast<unsigned>(static_cast<uint8_t>(is.Take())) << 24;
c |= (unsigned char)is.Take() << 16; c |= static_cast<unsigned>(static_cast<uint8_t>(is.Take())) << 16;
c |= (unsigned char)is.Take() << 8; c |= static_cast<unsigned>(static_cast<uint8_t>(is.Take())) << 8;
c |= (unsigned char)is.Take(); c |= static_cast<unsigned>(static_cast<uint8_t>(is.Take()));
return c; return static_cast<CharType>(c);
} }
template <typename OutputByteStream> template <typename OutputByteStream>
static void PutBOM(OutputByteStream& os) { static void PutBOM(OutputByteStream& os) {
RAPIDJSON_STATIC_ASSERT(sizeof(typename OutputByteStream::Ch) == 1); RAPIDJSON_STATIC_ASSERT(sizeof(typename OutputByteStream::Ch) == 1);
os.Put(0x00u); os.Put(0x00u); os.Put(0xFEu); os.Put(0xFFu); os.Put(static_cast<typename OutputByteStream::Ch>(0x00u));
os.Put(static_cast<typename OutputByteStream::Ch>(0x00u));
os.Put(static_cast<typename OutputByteStream::Ch>(0xFEu));
os.Put(static_cast<typename OutputByteStream::Ch>(0xFFu));
} }
template <typename OutputByteStream> template <typename OutputByteStream>
static void Put(OutputByteStream& os, CharType c) { static void Put(OutputByteStream& os, CharType c) {
RAPIDJSON_STATIC_ASSERT(sizeof(typename OutputByteStream::Ch) == 1); RAPIDJSON_STATIC_ASSERT(sizeof(typename OutputByteStream::Ch) == 1);
os.Put((c >> 24) & 0xFFu); os.Put(static_cast<typename OutputByteStream::Ch>((c >> 24) & 0xFFu));
os.Put((c >> 16) & 0xFFu); os.Put(static_cast<typename OutputByteStream::Ch>((c >> 16) & 0xFFu));
os.Put((c >> 8) & 0xFFu); os.Put(static_cast<typename OutputByteStream::Ch>((c >> 8) & 0xFFu));
os.Put(c & 0xFFu); os.Put(static_cast<typename OutputByteStream::Ch>(c & 0xFFu));
} }
}; };
@ -491,31 +550,37 @@ struct ASCII {
os.Put(static_cast<Ch>(codepoint & 0xFF)); os.Put(static_cast<Ch>(codepoint & 0xFF));
} }
template<typename OutputStream>
static void EncodeUnsafe(OutputStream& os, unsigned codepoint) {
RAPIDJSON_ASSERT(codepoint <= 0x7F);
PutUnsafe(os, static_cast<Ch>(codepoint & 0xFF));
}
template <typename InputStream> template <typename InputStream>
static bool Decode(InputStream& is, unsigned* codepoint) { static bool Decode(InputStream& is, unsigned* codepoint) {
unsigned char c = static_cast<unsigned char>(is.Take()); uint8_t c = static_cast<uint8_t>(is.Take());
*codepoint = c; *codepoint = c;
return c <= 0X7F; return c <= 0X7F;
} }
template <typename InputStream, typename OutputStream> template <typename InputStream, typename OutputStream>
static bool Validate(InputStream& is, OutputStream& os) { static bool Validate(InputStream& is, OutputStream& os) {
unsigned char c = is.Take(); uint8_t c = static_cast<uint8_t>(is.Take());
os.Put(c); os.Put(static_cast<typename OutputStream::Ch>(c));
return c <= 0x7F; return c <= 0x7F;
} }
template <typename InputByteStream> template <typename InputByteStream>
static CharType TakeBOM(InputByteStream& is) { static CharType TakeBOM(InputByteStream& is) {
RAPIDJSON_STATIC_ASSERT(sizeof(typename InputByteStream::Ch) == 1); RAPIDJSON_STATIC_ASSERT(sizeof(typename InputByteStream::Ch) == 1);
Ch c = Take(is); uint8_t c = static_cast<uint8_t>(Take(is));
return c; return static_cast<Ch>(c);
} }
template <typename InputByteStream> template <typename InputByteStream>
static Ch Take(InputByteStream& is) { static Ch Take(InputByteStream& is) {
RAPIDJSON_STATIC_ASSERT(sizeof(typename InputByteStream::Ch) == 1); RAPIDJSON_STATIC_ASSERT(sizeof(typename InputByteStream::Ch) == 1);
return is.Take(); return static_cast<Ch>(is.Take());
} }
template <typename OutputByteStream> template <typename OutputByteStream>
@ -555,21 +620,28 @@ struct AutoUTF {
#define RAPIDJSON_ENCODINGS_FUNC(x) UTF8<Ch>::x, UTF16LE<Ch>::x, UTF16BE<Ch>::x, UTF32LE<Ch>::x, UTF32BE<Ch>::x #define RAPIDJSON_ENCODINGS_FUNC(x) UTF8<Ch>::x, UTF16LE<Ch>::x, UTF16BE<Ch>::x, UTF32LE<Ch>::x, UTF32BE<Ch>::x
template<typename OutputStream> template<typename OutputStream>
RAPIDJSON_FORCEINLINE static void Encode(OutputStream& os, unsigned codepoint) { static RAPIDJSON_FORCEINLINE void Encode(OutputStream& os, unsigned codepoint) {
typedef void (*EncodeFunc)(OutputStream&, unsigned); typedef void (*EncodeFunc)(OutputStream&, unsigned);
static const EncodeFunc f[] = { RAPIDJSON_ENCODINGS_FUNC(Encode) }; static const EncodeFunc f[] = { RAPIDJSON_ENCODINGS_FUNC(Encode) };
(*f[os.GetType()])(os, codepoint); (*f[os.GetType()])(os, codepoint);
} }
template<typename OutputStream>
static RAPIDJSON_FORCEINLINE void EncodeUnsafe(OutputStream& os, unsigned codepoint) {
typedef void (*EncodeFunc)(OutputStream&, unsigned);
static const EncodeFunc f[] = { RAPIDJSON_ENCODINGS_FUNC(EncodeUnsafe) };
(*f[os.GetType()])(os, codepoint);
}
template <typename InputStream> template <typename InputStream>
RAPIDJSON_FORCEINLINE static bool Decode(InputStream& is, unsigned* codepoint) { static RAPIDJSON_FORCEINLINE bool Decode(InputStream& is, unsigned* codepoint) {
typedef bool (*DecodeFunc)(InputStream&, unsigned*); typedef bool (*DecodeFunc)(InputStream&, unsigned*);
static const DecodeFunc f[] = { RAPIDJSON_ENCODINGS_FUNC(Decode) }; static const DecodeFunc f[] = { RAPIDJSON_ENCODINGS_FUNC(Decode) };
return (*f[is.GetType()])(is, codepoint); return (*f[is.GetType()])(is, codepoint);
} }
template <typename InputStream, typename OutputStream> template <typename InputStream, typename OutputStream>
RAPIDJSON_FORCEINLINE static bool Validate(InputStream& is, OutputStream& os) { static RAPIDJSON_FORCEINLINE bool Validate(InputStream& is, OutputStream& os) {
typedef bool (*ValidateFunc)(InputStream&, OutputStream&); typedef bool (*ValidateFunc)(InputStream&, OutputStream&);
static const ValidateFunc f[] = { RAPIDJSON_ENCODINGS_FUNC(Validate) }; static const ValidateFunc f[] = { RAPIDJSON_ENCODINGS_FUNC(Validate) };
return (*f[is.GetType()])(is, os); return (*f[is.GetType()])(is, os);
@ -586,7 +658,7 @@ template<typename SourceEncoding, typename TargetEncoding>
struct Transcoder { struct Transcoder {
//! Take one Unicode codepoint from source encoding, convert it to target encoding and put it to the output stream. //! Take one Unicode codepoint from source encoding, convert it to target encoding and put it to the output stream.
template<typename InputStream, typename OutputStream> template<typename InputStream, typename OutputStream>
RAPIDJSON_FORCEINLINE static bool Transcode(InputStream& is, OutputStream& os) { static RAPIDJSON_FORCEINLINE bool Transcode(InputStream& is, OutputStream& os) {
unsigned codepoint; unsigned codepoint;
if (!SourceEncoding::Decode(is, &codepoint)) if (!SourceEncoding::Decode(is, &codepoint))
return false; return false;
@ -594,31 +666,50 @@ struct Transcoder {
return true; return true;
} }
template<typename InputStream, typename OutputStream>
static RAPIDJSON_FORCEINLINE bool TranscodeUnsafe(InputStream& is, OutputStream& os) {
unsigned codepoint;
if (!SourceEncoding::Decode(is, &codepoint))
return false;
TargetEncoding::EncodeUnsafe(os, codepoint);
return true;
}
//! Validate one Unicode codepoint from an encoded stream. //! Validate one Unicode codepoint from an encoded stream.
template<typename InputStream, typename OutputStream> template<typename InputStream, typename OutputStream>
RAPIDJSON_FORCEINLINE static bool Validate(InputStream& is, OutputStream& os) { static RAPIDJSON_FORCEINLINE bool Validate(InputStream& is, OutputStream& os) {
return Transcode(is, os); // Since source/target encoding is different, must transcode. return Transcode(is, os); // Since source/target encoding is different, must transcode.
} }
}; };
// Forward declaration.
template<typename Stream>
inline void PutUnsafe(Stream& stream, typename Stream::Ch c);
//! Specialization of Transcoder with same source and target encoding. //! Specialization of Transcoder with same source and target encoding.
template<typename Encoding> template<typename Encoding>
struct Transcoder<Encoding, Encoding> { struct Transcoder<Encoding, Encoding> {
template<typename InputStream, typename OutputStream> template<typename InputStream, typename OutputStream>
RAPIDJSON_FORCEINLINE static bool Transcode(InputStream& is, OutputStream& os) { static RAPIDJSON_FORCEINLINE bool Transcode(InputStream& is, OutputStream& os) {
os.Put(is.Take()); // Just copy one code unit. This semantic is different from primary template class. os.Put(is.Take()); // Just copy one code unit. This semantic is different from primary template class.
return true; return true;
} }
template<typename InputStream, typename OutputStream> template<typename InputStream, typename OutputStream>
RAPIDJSON_FORCEINLINE static bool Validate(InputStream& is, OutputStream& os) { static RAPIDJSON_FORCEINLINE bool TranscodeUnsafe(InputStream& is, OutputStream& os) {
PutUnsafe(os, is.Take()); // Just copy one code unit. This semantic is different from primary template class.
return true;
}
template<typename InputStream, typename OutputStream>
static RAPIDJSON_FORCEINLINE bool Validate(InputStream& is, OutputStream& os) {
return Encoding::Validate(is, os); // source/target encoding are the same return Encoding::Validate(is, os); // source/target encoding are the same
} }
}; };
RAPIDJSON_NAMESPACE_END RAPIDJSON_NAMESPACE_END
#if defined(__GNUC__) || defined(_MSV_VER) #if defined(__GNUC__) || defined(_MSC_VER)
RAPIDJSON_DIAG_POP RAPIDJSON_DIAG_POP
#endif #endif

View File

@ -12,11 +12,17 @@
// CONDITIONS OF ANY KIND, either express or implied. See the License for the // CONDITIONS OF ANY KIND, either express or implied. See the License for the
// specific language governing permissions and limitations under the License. // specific language governing permissions and limitations under the License.
#ifndef RAPIDJSON_ERROR_EN_H__ #ifndef RAPIDJSON_ERROR_EN_H_
#define RAPIDJSON_ERROR_EN_H__ #define RAPIDJSON_ERROR_EN_H_
#include "error.h" #include "error.h"
#ifdef __clang__
RAPIDJSON_DIAG_PUSH
RAPIDJSON_DIAG_OFF(switch-enum)
RAPIDJSON_DIAG_OFF(covered-switch-default)
#endif
RAPIDJSON_NAMESPACE_BEGIN RAPIDJSON_NAMESPACE_BEGIN
//! Maps error code of parsing into error message. //! Maps error code of parsing into error message.
@ -32,7 +38,7 @@ inline const RAPIDJSON_ERROR_CHARTYPE* GetParseError_En(ParseErrorCode parseErro
case kParseErrorNone: return RAPIDJSON_ERROR_STRING("No error."); case kParseErrorNone: return RAPIDJSON_ERROR_STRING("No error.");
case kParseErrorDocumentEmpty: return RAPIDJSON_ERROR_STRING("The document is empty."); case kParseErrorDocumentEmpty: return RAPIDJSON_ERROR_STRING("The document is empty.");
case kParseErrorDocumentRootNotSingular: return RAPIDJSON_ERROR_STRING("The document root must not follow by other values."); case kParseErrorDocumentRootNotSingular: return RAPIDJSON_ERROR_STRING("The document root must not be followed by other values.");
case kParseErrorValueInvalid: return RAPIDJSON_ERROR_STRING("Invalid value."); case kParseErrorValueInvalid: return RAPIDJSON_ERROR_STRING("Invalid value.");
@ -55,11 +61,14 @@ inline const RAPIDJSON_ERROR_CHARTYPE* GetParseError_En(ParseErrorCode parseErro
case kParseErrorTermination: return RAPIDJSON_ERROR_STRING("Terminate parsing due to Handler error."); case kParseErrorTermination: return RAPIDJSON_ERROR_STRING("Terminate parsing due to Handler error.");
case kParseErrorUnspecificSyntaxError: return RAPIDJSON_ERROR_STRING("Unspecific syntax error."); case kParseErrorUnspecificSyntaxError: return RAPIDJSON_ERROR_STRING("Unspecific syntax error.");
default: default: return RAPIDJSON_ERROR_STRING("Unknown error.");
return RAPIDJSON_ERROR_STRING("Unknown error.");
} }
} }
RAPIDJSON_NAMESPACE_END RAPIDJSON_NAMESPACE_END
#endif // RAPIDJSON_ERROR_EN_H__ #ifdef __clang__
RAPIDJSON_DIAG_POP
#endif
#endif // RAPIDJSON_ERROR_EN_H_

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@ -12,11 +12,16 @@
// CONDITIONS OF ANY KIND, either express or implied. See the License for the // CONDITIONS OF ANY KIND, either express or implied. See the License for the
// specific language governing permissions and limitations under the License. // specific language governing permissions and limitations under the License.
#ifndef RAPIDJSON_ERROR_ERROR_H__ #ifndef RAPIDJSON_ERROR_ERROR_H_
#define RAPIDJSON_ERROR_ERROR_H__ #define RAPIDJSON_ERROR_ERROR_H_
#include "../rapidjson.h" #include "../rapidjson.h"
#ifdef __clang__
RAPIDJSON_DIAG_PUSH
RAPIDJSON_DIAG_OFF(padded)
#endif
/*! \file error.h */ /*! \file error.h */
/*! \defgroup RAPIDJSON_ERRORS RapidJSON error handling */ /*! \defgroup RAPIDJSON_ERRORS RapidJSON error handling */
@ -99,7 +104,9 @@ enum ParseErrorCode {
\see GenericReader::Parse, GenericDocument::Parse \see GenericReader::Parse, GenericDocument::Parse
*/ */
struct ParseResult { struct ParseResult {
//!! Unspecified boolean type
typedef bool (ParseResult::*BooleanType)() const;
public:
//! Default constructor, no error. //! Default constructor, no error.
ParseResult() : code_(kParseErrorNone), offset_(0) {} ParseResult() : code_(kParseErrorNone), offset_(0) {}
//! Constructor to set an error. //! Constructor to set an error.
@ -110,8 +117,8 @@ struct ParseResult {
//! Get the error offset, if \ref IsError(), 0 otherwise. //! Get the error offset, if \ref IsError(), 0 otherwise.
size_t Offset() const { return offset_; } size_t Offset() const { return offset_; }
//! Conversion to \c bool, returns \c true, iff !\ref IsError(). //! Explicit conversion to \c bool, returns \c true, iff !\ref IsError().
operator bool() const { return !IsError(); } operator BooleanType() const { return !IsError() ? &ParseResult::IsError : NULL; }
//! Whether the result is an error. //! Whether the result is an error.
bool IsError() const { return code_ != kParseErrorNone; } bool IsError() const { return code_ != kParseErrorNone; }
@ -119,6 +126,10 @@ struct ParseResult {
bool operator==(ParseErrorCode code) const { return code_ == code; } bool operator==(ParseErrorCode code) const { return code_ == code; }
friend bool operator==(ParseErrorCode code, const ParseResult & err) { return code == err.code_; } friend bool operator==(ParseErrorCode code, const ParseResult & err) { return code == err.code_; }
bool operator!=(const ParseResult& that) const { return !(*this == that); }
bool operator!=(ParseErrorCode code) const { return !(*this == code); }
friend bool operator!=(ParseErrorCode code, const ParseResult & err) { return err != code; }
//! Reset error code. //! Reset error code.
void Clear() { Set(kParseErrorNone); } void Clear() { Set(kParseErrorNone); }
//! Update error code and offset. //! Update error code and offset.
@ -143,4 +154,8 @@ typedef const RAPIDJSON_ERROR_CHARTYPE* (*GetParseErrorFunc)(ParseErrorCode);
RAPIDJSON_NAMESPACE_END RAPIDJSON_NAMESPACE_END
#endif // RAPIDJSON_ERROR_ERROR_H__ #ifdef __clang__
RAPIDJSON_DIAG_POP
#endif
#endif // RAPIDJSON_ERROR_ERROR_H_

View File

@ -15,9 +15,16 @@
#ifndef RAPIDJSON_FILEREADSTREAM_H_ #ifndef RAPIDJSON_FILEREADSTREAM_H_
#define RAPIDJSON_FILEREADSTREAM_H_ #define RAPIDJSON_FILEREADSTREAM_H_
#include "rapidjson.h" #include "stream.h"
#include <cstdio> #include <cstdio>
#ifdef __clang__
RAPIDJSON_DIAG_PUSH
RAPIDJSON_DIAG_OFF(padded)
RAPIDJSON_DIAG_OFF(unreachable-code)
RAPIDJSON_DIAG_OFF(missing-noreturn)
#endif
RAPIDJSON_NAMESPACE_BEGIN RAPIDJSON_NAMESPACE_BEGIN
//! File byte stream for input using fread(). //! File byte stream for input using fread().
@ -85,4 +92,8 @@ private:
RAPIDJSON_NAMESPACE_END RAPIDJSON_NAMESPACE_END
#ifdef __clang__
RAPIDJSON_DIAG_POP
#endif
#endif // RAPIDJSON_FILESTREAM_H_ #endif // RAPIDJSON_FILESTREAM_H_

View File

@ -15,9 +15,14 @@
#ifndef RAPIDJSON_FILEWRITESTREAM_H_ #ifndef RAPIDJSON_FILEWRITESTREAM_H_
#define RAPIDJSON_FILEWRITESTREAM_H_ #define RAPIDJSON_FILEWRITESTREAM_H_
#include "rapidjson.h" #include "stream.h"
#include <cstdio> #include <cstdio>
#ifdef __clang__
RAPIDJSON_DIAG_PUSH
RAPIDJSON_DIAG_OFF(unreachable-code)
#endif
RAPIDJSON_NAMESPACE_BEGIN RAPIDJSON_NAMESPACE_BEGIN
//! Wrapper of C file stream for input using fread(). //! Wrapper of C file stream for input using fread().
@ -57,7 +62,11 @@ public:
void Flush() { void Flush() {
if (current_ != buffer_) { if (current_ != buffer_) {
fwrite(buffer_, 1, static_cast<size_t>(current_ - buffer_), fp_); size_t result = fwrite(buffer_, 1, static_cast<size_t>(current_ - buffer_), fp_);
if (result < static_cast<size_t>(current_ - buffer_)) {
// failure deliberately ignored at this time
// added to avoid warn_unused_result build errors
}
current_ = buffer_; current_ = buffer_;
} }
} }
@ -88,4 +97,8 @@ inline void PutN(FileWriteStream& stream, char c, size_t n) {
RAPIDJSON_NAMESPACE_END RAPIDJSON_NAMESPACE_END
#ifdef __clang__
RAPIDJSON_DIAG_POP
#endif
#endif // RAPIDJSON_FILESTREAM_H_ #endif // RAPIDJSON_FILESTREAM_H_

View File

@ -0,0 +1,151 @@
// 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_FWD_H_
#define RAPIDJSON_FWD_H_
#include "rapidjson.h"
RAPIDJSON_NAMESPACE_BEGIN
// encodings.h
template<typename CharType> struct UTF8;
template<typename CharType> struct UTF16;
template<typename CharType> struct UTF16BE;
template<typename CharType> struct UTF16LE;
template<typename CharType> struct UTF32;
template<typename CharType> struct UTF32BE;
template<typename CharType> struct UTF32LE;
template<typename CharType> struct ASCII;
template<typename CharType> struct AutoUTF;
template<typename SourceEncoding, typename TargetEncoding>
struct Transcoder;
// allocators.h
class CrtAllocator;
template <typename BaseAllocator>
class MemoryPoolAllocator;
// stream.h
template <typename Encoding>
struct GenericStringStream;
typedef GenericStringStream<UTF8<char> > StringStream;
template <typename Encoding>
struct GenericInsituStringStream;
typedef GenericInsituStringStream<UTF8<char> > InsituStringStream;
// stringbuffer.h
template <typename Encoding, typename Allocator>
class GenericStringBuffer;
typedef GenericStringBuffer<UTF8<char>, CrtAllocator> StringBuffer;
// filereadstream.h
class FileReadStream;
// filewritestream.h
class FileWriteStream;
// memorybuffer.h
template <typename Allocator>
struct GenericMemoryBuffer;
typedef GenericMemoryBuffer<CrtAllocator> MemoryBuffer;
// memorystream.h
struct MemoryStream;
// reader.h
template<typename Encoding, typename Derived>
struct BaseReaderHandler;
template <typename SourceEncoding, typename TargetEncoding, typename StackAllocator>
class GenericReader;
typedef GenericReader<UTF8<char>, UTF8<char>, CrtAllocator> Reader;
// writer.h
template<typename OutputStream, typename SourceEncoding, typename TargetEncoding, typename StackAllocator, unsigned writeFlags>
class Writer;
// prettywriter.h
template<typename OutputStream, typename SourceEncoding, typename TargetEncoding, typename StackAllocator, unsigned writeFlags>
class PrettyWriter;
// document.h
template <typename Encoding, typename Allocator>
struct GenericMember;
template <bool Const, typename Encoding, typename Allocator>
class GenericMemberIterator;
template<typename CharType>
struct GenericStringRef;
template <typename Encoding, typename Allocator>
class GenericValue;
typedef GenericValue<UTF8<char>, MemoryPoolAllocator<CrtAllocator> > Value;
template <typename Encoding, typename Allocator, typename StackAllocator>
class GenericDocument;
typedef GenericDocument<UTF8<char>, MemoryPoolAllocator<CrtAllocator>, CrtAllocator> Document;
// pointer.h
template <typename ValueType, typename Allocator>
class GenericPointer;
typedef GenericPointer<Value, CrtAllocator> Pointer;
// schema.h
template <typename SchemaDocumentType>
class IGenericRemoteSchemaDocumentProvider;
template <typename ValueT, typename Allocator>
class GenericSchemaDocument;
typedef GenericSchemaDocument<Value, CrtAllocator> SchemaDocument;
typedef IGenericRemoteSchemaDocumentProvider<SchemaDocument> IRemoteSchemaDocumentProvider;
template <
typename SchemaDocumentType,
typename OutputHandler,
typename StateAllocator>
class GenericSchemaValidator;
typedef GenericSchemaValidator<SchemaDocument, BaseReaderHandler<UTF8<char>, void>, CrtAllocator> SchemaValidator;
RAPIDJSON_NAMESPACE_END
#endif // RAPIDJSON_RAPIDJSONFWD_H_

View File

@ -19,6 +19,7 @@
#if defined(_MSC_VER) && defined(_M_AMD64) #if defined(_MSC_VER) && defined(_M_AMD64)
#include <intrin.h> // for _umul128 #include <intrin.h> // for _umul128
#pragma intrinsic(_umul128)
#endif #endif
RAPIDJSON_NAMESPACE_BEGIN RAPIDJSON_NAMESPACE_BEGIN
@ -51,6 +52,15 @@ public:
AppendDecimal64(decimals + i, decimals + i + length); AppendDecimal64(decimals + i, decimals + i + length);
} }
BigInteger& operator=(const BigInteger &rhs)
{
if (this != &rhs) {
count_ = rhs.count_;
std::memcpy(digits_, rhs.digits_, count_ * sizeof(Type));
}
return *this;
}
BigInteger& operator=(uint64_t u) { BigInteger& operator=(uint64_t u) {
digits_[0] = u; digits_[0] = u;
count_ = 1; count_ = 1;
@ -230,7 +240,7 @@ private:
uint64_t r = 0; uint64_t r = 0;
for (const char* p = begin; p != end; ++p) { for (const char* p = begin; p != end; ++p) {
RAPIDJSON_ASSERT(*p >= '0' && *p <= '9'); RAPIDJSON_ASSERT(*p >= '0' && *p <= '9');
r = r * 10 + (*p - '0'); r = r * 10u + static_cast<unsigned>(*p - '0');
} }
return r; return r;
} }

View File

@ -21,9 +21,10 @@
#include "../rapidjson.h" #include "../rapidjson.h"
#if defined(_MSC_VER) && defined(_M_AMD64) #if defined(_MSC_VER) && defined(_M_AMD64) && !defined(__INTEL_COMPILER)
#include <intrin.h> #include <intrin.h>
#pragma intrinsic(_BitScanReverse64) #pragma intrinsic(_BitScanReverse64)
#pragma intrinsic(_umul128)
#endif #endif
RAPIDJSON_NAMESPACE_BEGIN RAPIDJSON_NAMESPACE_BEGIN
@ -34,8 +35,13 @@ RAPIDJSON_DIAG_PUSH
RAPIDJSON_DIAG_OFF(effc++) RAPIDJSON_DIAG_OFF(effc++)
#endif #endif
#ifdef __clang__
RAPIDJSON_DIAG_PUSH
RAPIDJSON_DIAG_OFF(padded)
#endif
struct DiyFp { struct DiyFp {
DiyFp() {} DiyFp() : f(), e() {}
DiyFp(uint64_t fp, int exp) : f(fp), e(exp) {} DiyFp(uint64_t fp, int exp) : f(fp), e(exp) {}
@ -232,8 +238,8 @@ inline DiyFp GetCachedPower(int e, int* K) {
} }
inline DiyFp GetCachedPower10(int exp, int *outExp) { inline DiyFp GetCachedPower10(int exp, int *outExp) {
unsigned index = (exp + 348) / 8; unsigned index = (static_cast<unsigned>(exp) + 348u) / 8u;
*outExp = -348 + index * 8; *outExp = -348 + static_cast<int>(index) * 8;
return GetCachedPowerByIndex(index); return GetCachedPowerByIndex(index);
} }
@ -241,6 +247,11 @@ inline DiyFp GetCachedPower10(int exp, int *outExp) {
RAPIDJSON_DIAG_POP RAPIDJSON_DIAG_POP
#endif #endif
#ifdef __clang__
RAPIDJSON_DIAG_POP
RAPIDJSON_DIAG_OFF(padded)
#endif
} // namespace internal } // namespace internal
RAPIDJSON_NAMESPACE_END RAPIDJSON_NAMESPACE_END

View File

@ -29,6 +29,7 @@ namespace internal {
#ifdef __GNUC__ #ifdef __GNUC__
RAPIDJSON_DIAG_PUSH RAPIDJSON_DIAG_PUSH
RAPIDJSON_DIAG_OFF(effc++) RAPIDJSON_DIAG_OFF(effc++)
RAPIDJSON_DIAG_OFF(array-bounds) // some gcc versions generate wrong warnings https://gcc.gnu.org/bugzilla/show_bug.cgi?id=59124
#endif #endif
inline void GrisuRound(char* buffer, int len, uint64_t delta, uint64_t rest, uint64_t ten_kappa, uint64_t wp_w) { inline void GrisuRound(char* buffer, int len, uint64_t delta, uint64_t rest, uint64_t ten_kappa, uint64_t wp_w) {
@ -40,7 +41,7 @@ inline void GrisuRound(char* buffer, int len, uint64_t delta, uint64_t rest, uin
} }
} }
inline unsigned CountDecimalDigit32(uint32_t n) { inline int CountDecimalDigit32(uint32_t n) {
// Simple pure C++ implementation was faster than __builtin_clz version in this situation. // Simple pure C++ implementation was faster than __builtin_clz version in this situation.
if (n < 10) return 1; if (n < 10) return 1;
if (n < 100) return 2; if (n < 100) return 2;
@ -101,7 +102,8 @@ inline void DigitGen(const DiyFp& W, const DiyFp& Mp, uint64_t delta, char* buff
kappa--; kappa--;
if (p2 < delta) { if (p2 < delta) {
*K += kappa; *K += kappa;
GrisuRound(buffer, *len, delta, p2, one.f, wp_w.f * kPow10[-kappa]); int index = -kappa;
GrisuRound(buffer, *len, delta, p2, one.f, wp_w.f * (index < 9 ? kPow10[index] : 0));
return; return;
} }
} }
@ -145,10 +147,10 @@ inline char* WriteExponent(int K, char* buffer) {
return buffer; return buffer;
} }
inline char* Prettify(char* buffer, int length, int k) { inline char* Prettify(char* buffer, int length, int k, int maxDecimalPlaces) {
const int kk = length + k; // 10^(kk-1) <= v < 10^kk const int kk = length + k; // 10^(kk-1) <= v < 10^kk
if (length <= kk && kk <= 21) { if (0 <= k && kk <= 21) {
// 1234e7 -> 12340000000 // 1234e7 -> 12340000000
for (int i = length; i < kk; i++) for (int i = length; i < kk; i++)
buffer[i] = '0'; buffer[i] = '0';
@ -158,20 +160,45 @@ inline char* Prettify(char* buffer, int length, int k) {
} }
else if (0 < kk && kk <= 21) { else if (0 < kk && kk <= 21) {
// 1234e-2 -> 12.34 // 1234e-2 -> 12.34
std::memmove(&buffer[kk + 1], &buffer[kk], length - kk); std::memmove(&buffer[kk + 1], &buffer[kk], static_cast<size_t>(length - kk));
buffer[kk] = '.'; buffer[kk] = '.';
if (0 > k + maxDecimalPlaces) {
// When maxDecimalPlaces = 2, 1.2345 -> 1.23, 1.102 -> 1.1
// Remove extra trailing zeros (at least one) after truncation.
for (int i = kk + maxDecimalPlaces; i > kk + 1; i--)
if (buffer[i] != '0')
return &buffer[i + 1];
return &buffer[kk + 2]; // Reserve one zero
}
else
return &buffer[length + 1]; return &buffer[length + 1];
} }
else if (-6 < kk && kk <= 0) { else if (-6 < kk && kk <= 0) {
// 1234e-6 -> 0.001234 // 1234e-6 -> 0.001234
const int offset = 2 - kk; const int offset = 2 - kk;
std::memmove(&buffer[offset], &buffer[0], length); std::memmove(&buffer[offset], &buffer[0], static_cast<size_t>(length));
buffer[0] = '0'; buffer[0] = '0';
buffer[1] = '.'; buffer[1] = '.';
for (int i = 2; i < offset; i++) for (int i = 2; i < offset; i++)
buffer[i] = '0'; buffer[i] = '0';
if (length - kk > maxDecimalPlaces) {
// When maxDecimalPlaces = 2, 0.123 -> 0.12, 0.102 -> 0.1
// Remove extra trailing zeros (at least one) after truncation.
for (int i = maxDecimalPlaces + 1; i > 2; i--)
if (buffer[i] != '0')
return &buffer[i + 1];
return &buffer[3]; // Reserve one zero
}
else
return &buffer[length + offset]; return &buffer[length + offset];
} }
else if (kk < -maxDecimalPlaces) {
// Truncate to zero
buffer[0] = '0';
buffer[1] = '.';
buffer[2] = '0';
return &buffer[3];
}
else if (length == 1) { else if (length == 1) {
// 1e30 // 1e30
buffer[1] = 'e'; buffer[1] = 'e';
@ -179,14 +206,15 @@ inline char* Prettify(char* buffer, int length, int k) {
} }
else { else {
// 1234e30 -> 1.234e33 // 1234e30 -> 1.234e33
std::memmove(&buffer[2], &buffer[1], length - 1); std::memmove(&buffer[2], &buffer[1], static_cast<size_t>(length - 1));
buffer[1] = '.'; buffer[1] = '.';
buffer[length + 1] = 'e'; buffer[length + 1] = 'e';
return WriteExponent(kk - 1, &buffer[0 + length + 2]); return WriteExponent(kk - 1, &buffer[0 + length + 2]);
} }
} }
inline char* dtoa(double value, char* buffer) { inline char* dtoa(double value, char* buffer, int maxDecimalPlaces = 324) {
RAPIDJSON_ASSERT(maxDecimalPlaces >= 1);
Double d(value); Double d(value);
if (d.IsZero()) { if (d.IsZero()) {
if (d.Sign()) if (d.Sign())
@ -203,7 +231,7 @@ inline char* dtoa(double value, char* buffer) {
} }
int length, K; int length, K;
Grisu2(value, buffer, &length, &K); Grisu2(value, buffer, &length, &K);
return Prettify(buffer, length, K); return Prettify(buffer, length, K, maxDecimalPlaces);
} }
} }

View File

@ -40,6 +40,7 @@ public:
bool IsNan() const { return (u_ & kExponentMask) == kExponentMask && Significand() != 0; } bool IsNan() const { return (u_ & kExponentMask) == kExponentMask && Significand() != 0; }
bool IsInf() const { return (u_ & kExponentMask) == kExponentMask && Significand() == 0; } bool IsInf() const { return (u_ & kExponentMask) == kExponentMask && Significand() == 0; }
bool IsNanOrInf() const { return (u_ & kExponentMask) == kExponentMask; }
bool IsNormal() const { return (u_ & kExponentMask) != 0 || Significand() == 0; } bool IsNormal() const { return (u_ & kExponentMask) != 0 || Significand() == 0; }
bool IsZero() const { return (u_ & (kExponentMask | kSignificandMask)) == 0; } bool IsZero() const { return (u_ & (kExponentMask | kSignificandMask)) == 0; }
@ -47,7 +48,7 @@ public:
int IntegerExponent() const { return (IsNormal() ? Exponent() : kDenormalExponent) - kSignificandSize; } int IntegerExponent() const { return (IsNormal() ? Exponent() : kDenormalExponent) - kSignificandSize; }
uint64_t ToBias() const { return (u_ & kSignMask) ? ~u_ + 1 : u_ | kSignMask; } uint64_t ToBias() const { return (u_ & kSignMask) ? ~u_ + 1 : u_ | kSignMask; }
static unsigned EffectiveSignificandSize(int order) { static int EffectiveSignificandSize(int order) {
if (order >= -1021) if (order >= -1021)
return 53; return 53;
else if (order <= -1074) else if (order <= -1074)

View File

@ -0,0 +1,734 @@
// 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_REGEX_H_
#define RAPIDJSON_INTERNAL_REGEX_H_
#include "../allocators.h"
#include "../stream.h"
#include "stack.h"
#ifdef __clang__
RAPIDJSON_DIAG_PUSH
RAPIDJSON_DIAG_OFF(padded)
RAPIDJSON_DIAG_OFF(switch-enum)
RAPIDJSON_DIAG_OFF(implicit-fallthrough)
#endif
#ifdef __GNUC__
RAPIDJSON_DIAG_PUSH
RAPIDJSON_DIAG_OFF(effc++)
#if __GNUC__ >= 7
RAPIDJSON_DIAG_OFF(implicit-fallthrough)
#endif
#endif
#ifdef _MSC_VER
RAPIDJSON_DIAG_PUSH
RAPIDJSON_DIAG_OFF(4512) // assignment operator could not be generated
#endif
#ifndef RAPIDJSON_REGEX_VERBOSE
#define RAPIDJSON_REGEX_VERBOSE 0
#endif
RAPIDJSON_NAMESPACE_BEGIN
namespace internal {
///////////////////////////////////////////////////////////////////////////////
// DecodedStream
template <typename SourceStream, typename Encoding>
class DecodedStream {
public:
DecodedStream(SourceStream& ss) : ss_(ss), codepoint_() { Decode(); }
unsigned Peek() { return codepoint_; }
unsigned Take() {
unsigned c = codepoint_;
if (c) // No further decoding when '\0'
Decode();
return c;
}
private:
void Decode() {
if (!Encoding::Decode(ss_, &codepoint_))
codepoint_ = 0;
}
SourceStream& ss_;
unsigned codepoint_;
};
///////////////////////////////////////////////////////////////////////////////
// GenericRegex
static const SizeType kRegexInvalidState = ~SizeType(0); //!< Represents an invalid index in GenericRegex::State::out, out1
static const SizeType kRegexInvalidRange = ~SizeType(0);
template <typename Encoding, typename Allocator>
class GenericRegexSearch;
//! Regular expression engine with subset of ECMAscript grammar.
/*!
Supported regular expression syntax:
- \c ab Concatenation
- \c a|b Alternation
- \c a? Zero or one
- \c a* Zero or more
- \c a+ One or more
- \c a{3} Exactly 3 times
- \c a{3,} At least 3 times
- \c a{3,5} 3 to 5 times
- \c (ab) Grouping
- \c ^a At the beginning
- \c a$ At the end
- \c . Any character
- \c [abc] Character classes
- \c [a-c] Character class range
- \c [a-z0-9_] Character class combination
- \c [^abc] Negated character classes
- \c [^a-c] Negated character class range
- \c [\b] Backspace (U+0008)
- \c \\| \\\\ ... Escape characters
- \c \\f Form feed (U+000C)
- \c \\n Line feed (U+000A)
- \c \\r Carriage return (U+000D)
- \c \\t Tab (U+0009)
- \c \\v Vertical tab (U+000B)
\note This is a Thompson NFA engine, implemented with reference to
Cox, Russ. "Regular Expression Matching Can Be Simple And Fast (but is slow in Java, Perl, PHP, Python, Ruby,...).",
https://swtch.com/~rsc/regexp/regexp1.html
*/
template <typename Encoding, typename Allocator = CrtAllocator>
class GenericRegex {
public:
typedef Encoding EncodingType;
typedef typename Encoding::Ch Ch;
template <typename, typename> friend class GenericRegexSearch;
GenericRegex(const Ch* source, Allocator* allocator = 0) :
states_(allocator, 256), ranges_(allocator, 256), root_(kRegexInvalidState), stateCount_(), rangeCount_(),
anchorBegin_(), anchorEnd_()
{
GenericStringStream<Encoding> ss(source);
DecodedStream<GenericStringStream<Encoding>, Encoding> ds(ss);
Parse(ds);
}
~GenericRegex() {}
bool IsValid() const {
return root_ != kRegexInvalidState;
}
private:
enum Operator {
kZeroOrOne,
kZeroOrMore,
kOneOrMore,
kConcatenation,
kAlternation,
kLeftParenthesis
};
static const unsigned kAnyCharacterClass = 0xFFFFFFFF; //!< For '.'
static const unsigned kRangeCharacterClass = 0xFFFFFFFE;
static const unsigned kRangeNegationFlag = 0x80000000;
struct Range {
unsigned start; //
unsigned end;
SizeType next;
};
struct State {
SizeType out; //!< Equals to kInvalid for matching state
SizeType out1; //!< Equals to non-kInvalid for split
SizeType rangeStart;
unsigned codepoint;
};
struct Frag {
Frag(SizeType s, SizeType o, SizeType m) : start(s), out(o), minIndex(m) {}
SizeType start;
SizeType out; //!< link-list of all output states
SizeType minIndex;
};
State& GetState(SizeType index) {
RAPIDJSON_ASSERT(index < stateCount_);
return states_.template Bottom<State>()[index];
}
const State& GetState(SizeType index) const {
RAPIDJSON_ASSERT(index < stateCount_);
return states_.template Bottom<State>()[index];
}
Range& GetRange(SizeType index) {
RAPIDJSON_ASSERT(index < rangeCount_);
return ranges_.template Bottom<Range>()[index];
}
const Range& GetRange(SizeType index) const {
RAPIDJSON_ASSERT(index < rangeCount_);
return ranges_.template Bottom<Range>()[index];
}
template <typename InputStream>
void Parse(DecodedStream<InputStream, Encoding>& ds) {
Allocator allocator;
Stack<Allocator> operandStack(&allocator, 256); // Frag
Stack<Allocator> operatorStack(&allocator, 256); // Operator
Stack<Allocator> atomCountStack(&allocator, 256); // unsigned (Atom per parenthesis)
*atomCountStack.template Push<unsigned>() = 0;
unsigned codepoint;
while (ds.Peek() != 0) {
switch (codepoint = ds.Take()) {
case '^':
anchorBegin_ = true;
break;
case '$':
anchorEnd_ = true;
break;
case '|':
while (!operatorStack.Empty() && *operatorStack.template Top<Operator>() < kAlternation)
if (!Eval(operandStack, *operatorStack.template Pop<Operator>(1)))
return;
*operatorStack.template Push<Operator>() = kAlternation;
*atomCountStack.template Top<unsigned>() = 0;
break;
case '(':
*operatorStack.template Push<Operator>() = kLeftParenthesis;
*atomCountStack.template Push<unsigned>() = 0;
break;
case ')':
while (!operatorStack.Empty() && *operatorStack.template Top<Operator>() != kLeftParenthesis)
if (!Eval(operandStack, *operatorStack.template Pop<Operator>(1)))
return;
if (operatorStack.Empty())
return;
operatorStack.template Pop<Operator>(1);
atomCountStack.template Pop<unsigned>(1);
ImplicitConcatenation(atomCountStack, operatorStack);
break;
case '?':
if (!Eval(operandStack, kZeroOrOne))
return;
break;
case '*':
if (!Eval(operandStack, kZeroOrMore))
return;
break;
case '+':
if (!Eval(operandStack, kOneOrMore))
return;
break;
case '{':
{
unsigned n, m;
if (!ParseUnsigned(ds, &n))
return;
if (ds.Peek() == ',') {
ds.Take();
if (ds.Peek() == '}')
m = kInfinityQuantifier;
else if (!ParseUnsigned(ds, &m) || m < n)
return;
}
else
m = n;
if (!EvalQuantifier(operandStack, n, m) || ds.Peek() != '}')
return;
ds.Take();
}
break;
case '.':
PushOperand(operandStack, kAnyCharacterClass);
ImplicitConcatenation(atomCountStack, operatorStack);
break;
case '[':
{
SizeType range;
if (!ParseRange(ds, &range))
return;
SizeType s = NewState(kRegexInvalidState, kRegexInvalidState, kRangeCharacterClass);
GetState(s).rangeStart = range;
*operandStack.template Push<Frag>() = Frag(s, s, s);
}
ImplicitConcatenation(atomCountStack, operatorStack);
break;
case '\\': // Escape character
if (!CharacterEscape(ds, &codepoint))
return; // Unsupported escape character
// fall through to default
default: // Pattern character
PushOperand(operandStack, codepoint);
ImplicitConcatenation(atomCountStack, operatorStack);
}
}
while (!operatorStack.Empty())
if (!Eval(operandStack, *operatorStack.template Pop<Operator>(1)))
return;
// Link the operand to matching state.
if (operandStack.GetSize() == sizeof(Frag)) {
Frag* e = operandStack.template Pop<Frag>(1);
Patch(e->out, NewState(kRegexInvalidState, kRegexInvalidState, 0));
root_ = e->start;
#if RAPIDJSON_REGEX_VERBOSE
printf("root: %d\n", root_);
for (SizeType i = 0; i < stateCount_ ; i++) {
State& s = GetState(i);
printf("[%2d] out: %2d out1: %2d c: '%c'\n", i, s.out, s.out1, (char)s.codepoint);
}
printf("\n");
#endif
}
}
SizeType NewState(SizeType out, SizeType out1, unsigned codepoint) {
State* s = states_.template Push<State>();
s->out = out;
s->out1 = out1;
s->codepoint = codepoint;
s->rangeStart = kRegexInvalidRange;
return stateCount_++;
}
void PushOperand(Stack<Allocator>& operandStack, unsigned codepoint) {
SizeType s = NewState(kRegexInvalidState, kRegexInvalidState, codepoint);
*operandStack.template Push<Frag>() = Frag(s, s, s);
}
void ImplicitConcatenation(Stack<Allocator>& atomCountStack, Stack<Allocator>& operatorStack) {
if (*atomCountStack.template Top<unsigned>())
*operatorStack.template Push<Operator>() = kConcatenation;
(*atomCountStack.template Top<unsigned>())++;
}
SizeType Append(SizeType l1, SizeType l2) {
SizeType old = l1;
while (GetState(l1).out != kRegexInvalidState)
l1 = GetState(l1).out;
GetState(l1).out = l2;
return old;
}
void Patch(SizeType l, SizeType s) {
for (SizeType next; l != kRegexInvalidState; l = next) {
next = GetState(l).out;
GetState(l).out = s;
}
}
bool Eval(Stack<Allocator>& operandStack, Operator op) {
switch (op) {
case kConcatenation:
RAPIDJSON_ASSERT(operandStack.GetSize() >= sizeof(Frag) * 2);
{
Frag e2 = *operandStack.template Pop<Frag>(1);
Frag e1 = *operandStack.template Pop<Frag>(1);
Patch(e1.out, e2.start);
*operandStack.template Push<Frag>() = Frag(e1.start, e2.out, Min(e1.minIndex, e2.minIndex));
}
return true;
case kAlternation:
if (operandStack.GetSize() >= sizeof(Frag) * 2) {
Frag e2 = *operandStack.template Pop<Frag>(1);
Frag e1 = *operandStack.template Pop<Frag>(1);
SizeType s = NewState(e1.start, e2.start, 0);
*operandStack.template Push<Frag>() = Frag(s, Append(e1.out, e2.out), Min(e1.minIndex, e2.minIndex));
return true;
}
return false;
case kZeroOrOne:
if (operandStack.GetSize() >= sizeof(Frag)) {
Frag e = *operandStack.template Pop<Frag>(1);
SizeType s = NewState(kRegexInvalidState, e.start, 0);
*operandStack.template Push<Frag>() = Frag(s, Append(e.out, s), e.minIndex);
return true;
}
return false;
case kZeroOrMore:
if (operandStack.GetSize() >= sizeof(Frag)) {
Frag e = *operandStack.template Pop<Frag>(1);
SizeType s = NewState(kRegexInvalidState, e.start, 0);
Patch(e.out, s);
*operandStack.template Push<Frag>() = Frag(s, s, e.minIndex);
return true;
}
return false;
default:
RAPIDJSON_ASSERT(op == kOneOrMore);
if (operandStack.GetSize() >= sizeof(Frag)) {
Frag e = *operandStack.template Pop<Frag>(1);
SizeType s = NewState(kRegexInvalidState, e.start, 0);
Patch(e.out, s);
*operandStack.template Push<Frag>() = Frag(e.start, s, e.minIndex);
return true;
}
return false;
}
}
bool EvalQuantifier(Stack<Allocator>& operandStack, unsigned n, unsigned m) {
RAPIDJSON_ASSERT(n <= m);
RAPIDJSON_ASSERT(operandStack.GetSize() >= sizeof(Frag));
if (n == 0) {
if (m == 0) // a{0} not support
return false;
else if (m == kInfinityQuantifier)
Eval(operandStack, kZeroOrMore); // a{0,} -> a*
else {
Eval(operandStack, kZeroOrOne); // a{0,5} -> a?
for (unsigned i = 0; i < m - 1; i++)
CloneTopOperand(operandStack); // a{0,5} -> a? a? a? a? a?
for (unsigned i = 0; i < m - 1; i++)
Eval(operandStack, kConcatenation); // a{0,5} -> a?a?a?a?a?
}
return true;
}
for (unsigned i = 0; i < n - 1; i++) // a{3} -> a a a
CloneTopOperand(operandStack);
if (m == kInfinityQuantifier)
Eval(operandStack, kOneOrMore); // a{3,} -> a a a+
else if (m > n) {
CloneTopOperand(operandStack); // a{3,5} -> a a a a
Eval(operandStack, kZeroOrOne); // a{3,5} -> a a a a?
for (unsigned i = n; i < m - 1; i++)
CloneTopOperand(operandStack); // a{3,5} -> a a a a? a?
for (unsigned i = n; i < m; i++)
Eval(operandStack, kConcatenation); // a{3,5} -> a a aa?a?
}
for (unsigned i = 0; i < n - 1; i++)
Eval(operandStack, kConcatenation); // a{3} -> aaa, a{3,} -> aaa+, a{3.5} -> aaaa?a?
return true;
}
static SizeType Min(SizeType a, SizeType b) { return a < b ? a : b; }
void CloneTopOperand(Stack<Allocator>& operandStack) {
const Frag src = *operandStack.template Top<Frag>(); // Copy constructor to prevent invalidation
SizeType count = stateCount_ - src.minIndex; // Assumes top operand contains states in [src->minIndex, stateCount_)
State* s = states_.template Push<State>(count);
memcpy(s, &GetState(src.minIndex), count * sizeof(State));
for (SizeType j = 0; j < count; j++) {
if (s[j].out != kRegexInvalidState)
s[j].out += count;
if (s[j].out1 != kRegexInvalidState)
s[j].out1 += count;
}
*operandStack.template Push<Frag>() = Frag(src.start + count, src.out + count, src.minIndex + count);
stateCount_ += count;
}
template <typename InputStream>
bool ParseUnsigned(DecodedStream<InputStream, Encoding>& ds, unsigned* u) {
unsigned r = 0;
if (ds.Peek() < '0' || ds.Peek() > '9')
return false;
while (ds.Peek() >= '0' && ds.Peek() <= '9') {
if (r >= 429496729 && ds.Peek() > '5') // 2^32 - 1 = 4294967295
return false; // overflow
r = r * 10 + (ds.Take() - '0');
}
*u = r;
return true;
}
template <typename InputStream>
bool ParseRange(DecodedStream<InputStream, Encoding>& ds, SizeType* range) {
bool isBegin = true;
bool negate = false;
int step = 0;
SizeType start = kRegexInvalidRange;
SizeType current = kRegexInvalidRange;
unsigned codepoint;
while ((codepoint = ds.Take()) != 0) {
if (isBegin) {
isBegin = false;
if (codepoint == '^') {
negate = true;
continue;
}
}
switch (codepoint) {
case ']':
if (start == kRegexInvalidRange)
return false; // Error: nothing inside []
if (step == 2) { // Add trailing '-'
SizeType r = NewRange('-');
RAPIDJSON_ASSERT(current != kRegexInvalidRange);
GetRange(current).next = r;
}
if (negate)
GetRange(start).start |= kRangeNegationFlag;
*range = start;
return true;
case '\\':
if (ds.Peek() == 'b') {
ds.Take();
codepoint = 0x0008; // Escape backspace character
}
else if (!CharacterEscape(ds, &codepoint))
return false;
// fall through to default
default:
switch (step) {
case 1:
if (codepoint == '-') {
step++;
break;
}
// fall through to step 0 for other characters
case 0:
{
SizeType r = NewRange(codepoint);
if (current != kRegexInvalidRange)
GetRange(current).next = r;
if (start == kRegexInvalidRange)
start = r;
current = r;
}
step = 1;
break;
default:
RAPIDJSON_ASSERT(step == 2);
GetRange(current).end = codepoint;
step = 0;
}
}
}
return false;
}
SizeType NewRange(unsigned codepoint) {
Range* r = ranges_.template Push<Range>();
r->start = r->end = codepoint;
r->next = kRegexInvalidRange;
return rangeCount_++;
}
template <typename InputStream>
bool CharacterEscape(DecodedStream<InputStream, Encoding>& ds, unsigned* escapedCodepoint) {
unsigned codepoint;
switch (codepoint = ds.Take()) {
case '^':
case '$':
case '|':
case '(':
case ')':
case '?':
case '*':
case '+':
case '.':
case '[':
case ']':
case '{':
case '}':
case '\\':
*escapedCodepoint = codepoint; return true;
case 'f': *escapedCodepoint = 0x000C; return true;
case 'n': *escapedCodepoint = 0x000A; return true;
case 'r': *escapedCodepoint = 0x000D; return true;
case 't': *escapedCodepoint = 0x0009; return true;
case 'v': *escapedCodepoint = 0x000B; return true;
default:
return false; // Unsupported escape character
}
}
Stack<Allocator> states_;
Stack<Allocator> ranges_;
SizeType root_;
SizeType stateCount_;
SizeType rangeCount_;
static const unsigned kInfinityQuantifier = ~0u;
// For SearchWithAnchoring()
bool anchorBegin_;
bool anchorEnd_;
};
template <typename RegexType, typename Allocator = CrtAllocator>
class GenericRegexSearch {
public:
typedef typename RegexType::EncodingType Encoding;
typedef typename Encoding::Ch Ch;
GenericRegexSearch(const RegexType& regex, Allocator* allocator = 0) :
regex_(regex), allocator_(allocator), ownAllocator_(0),
state0_(allocator, 0), state1_(allocator, 0), stateSet_()
{
RAPIDJSON_ASSERT(regex_.IsValid());
if (!allocator_)
ownAllocator_ = allocator_ = RAPIDJSON_NEW(Allocator)();
stateSet_ = static_cast<unsigned*>(allocator_->Malloc(GetStateSetSize()));
state0_.template Reserve<SizeType>(regex_.stateCount_);
state1_.template Reserve<SizeType>(regex_.stateCount_);
}
~GenericRegexSearch() {
Allocator::Free(stateSet_);
RAPIDJSON_DELETE(ownAllocator_);
}
template <typename InputStream>
bool Match(InputStream& is) {
return SearchWithAnchoring(is, true, true);
}
bool Match(const Ch* s) {
GenericStringStream<Encoding> is(s);
return Match(is);
}
template <typename InputStream>
bool Search(InputStream& is) {
return SearchWithAnchoring(is, regex_.anchorBegin_, regex_.anchorEnd_);
}
bool Search(const Ch* s) {
GenericStringStream<Encoding> is(s);
return Search(is);
}
private:
typedef typename RegexType::State State;
typedef typename RegexType::Range Range;
template <typename InputStream>
bool SearchWithAnchoring(InputStream& is, bool anchorBegin, bool anchorEnd) {
DecodedStream<InputStream, Encoding> ds(is);
state0_.Clear();
Stack<Allocator> *current = &state0_, *next = &state1_;
const size_t stateSetSize = GetStateSetSize();
std::memset(stateSet_, 0, stateSetSize);
bool matched = AddState(*current, regex_.root_);
unsigned codepoint;
while (!current->Empty() && (codepoint = ds.Take()) != 0) {
std::memset(stateSet_, 0, stateSetSize);
next->Clear();
matched = false;
for (const SizeType* s = current->template Bottom<SizeType>(); s != current->template End<SizeType>(); ++s) {
const State& sr = regex_.GetState(*s);
if (sr.codepoint == codepoint ||
sr.codepoint == RegexType::kAnyCharacterClass ||
(sr.codepoint == RegexType::kRangeCharacterClass && MatchRange(sr.rangeStart, codepoint)))
{
matched = AddState(*next, sr.out) || matched;
if (!anchorEnd && matched)
return true;
}
if (!anchorBegin)
AddState(*next, regex_.root_);
}
internal::Swap(current, next);
}
return matched;
}
size_t GetStateSetSize() const {
return (regex_.stateCount_ + 31) / 32 * 4;
}
// Return whether the added states is a match state
bool AddState(Stack<Allocator>& l, SizeType index) {
RAPIDJSON_ASSERT(index != kRegexInvalidState);
const State& s = regex_.GetState(index);
if (s.out1 != kRegexInvalidState) { // Split
bool matched = AddState(l, s.out);
return AddState(l, s.out1) || matched;
}
else if (!(stateSet_[index >> 5] & (1u << (index & 31)))) {
stateSet_[index >> 5] |= (1u << (index & 31));
*l.template PushUnsafe<SizeType>() = index;
}
return s.out == kRegexInvalidState; // by using PushUnsafe() above, we can ensure s is not validated due to reallocation.
}
bool MatchRange(SizeType rangeIndex, unsigned codepoint) const {
bool yes = (regex_.GetRange(rangeIndex).start & RegexType::kRangeNegationFlag) == 0;
while (rangeIndex != kRegexInvalidRange) {
const Range& r = regex_.GetRange(rangeIndex);
if (codepoint >= (r.start & ~RegexType::kRangeNegationFlag) && codepoint <= r.end)
return yes;
rangeIndex = r.next;
}
return !yes;
}
const RegexType& regex_;
Allocator* allocator_;
Allocator* ownAllocator_;
Stack<Allocator> state0_;
Stack<Allocator> state1_;
uint32_t* stateSet_;
};
typedef GenericRegex<UTF8<> > Regex;
typedef GenericRegexSearch<Regex> RegexSearch;
} // namespace internal
RAPIDJSON_NAMESPACE_END
#ifdef __clang__
RAPIDJSON_DIAG_POP
#endif
#ifdef _MSC_VER
RAPIDJSON_DIAG_POP
#endif
#endif // RAPIDJSON_INTERNAL_REGEX_H_

View File

@ -15,7 +15,13 @@
#ifndef RAPIDJSON_INTERNAL_STACK_H_ #ifndef RAPIDJSON_INTERNAL_STACK_H_
#define RAPIDJSON_INTERNAL_STACK_H_ #define RAPIDJSON_INTERNAL_STACK_H_
#include "../rapidjson.h" #include "../allocators.h"
#include "swap.h"
#if defined(__clang__)
RAPIDJSON_DIAG_PUSH
RAPIDJSON_DIAG_OFF(c++98-compat)
#endif
RAPIDJSON_NAMESPACE_BEGIN RAPIDJSON_NAMESPACE_BEGIN
namespace internal { namespace internal {
@ -32,7 +38,6 @@ public:
// Optimization note: Do not allocate memory for stack_ in constructor. // Optimization note: Do not allocate memory for stack_ in constructor.
// Do it lazily when first Push() -> Expand() -> Resize(). // Do it lazily when first Push() -> Expand() -> Resize().
Stack(Allocator* allocator, size_t stackCapacity) : allocator_(allocator), ownAllocator_(0), stack_(0), stackTop_(0), stackEnd_(0), initialCapacity_(stackCapacity) { Stack(Allocator* allocator, size_t stackCapacity) : allocator_(allocator), ownAllocator_(0), stack_(0), stackTop_(0), stackEnd_(0), initialCapacity_(stackCapacity) {
RAPIDJSON_ASSERT(stackCapacity > 0);
} }
#if RAPIDJSON_HAS_CXX11_RVALUE_REFS #if RAPIDJSON_HAS_CXX11_RVALUE_REFS
@ -81,6 +86,15 @@ public:
} }
#endif #endif
void Swap(Stack& rhs) RAPIDJSON_NOEXCEPT {
internal::Swap(allocator_, rhs.allocator_);
internal::Swap(ownAllocator_, rhs.ownAllocator_);
internal::Swap(stack_, rhs.stack_);
internal::Swap(stackTop_, rhs.stackTop_);
internal::Swap(stackEnd_, rhs.stackEnd_);
internal::Swap(initialCapacity_, rhs.initialCapacity_);
}
void Clear() { stackTop_ = stack_; } void Clear() { stackTop_ = stack_; }
void ShrinkToFit() { void ShrinkToFit() {
@ -98,11 +112,22 @@ public:
// Optimization note: try to minimize the size of this function for force inline. // Optimization note: try to minimize the size of this function for force inline.
// Expansion is run very infrequently, so it is moved to another (probably non-inline) function. // Expansion is run very infrequently, so it is moved to another (probably non-inline) function.
template<typename T> template<typename T>
RAPIDJSON_FORCEINLINE T* Push(size_t count = 1) { RAPIDJSON_FORCEINLINE void Reserve(size_t count = 1) {
// Expand the stack if needed // Expand the stack if needed
if (stackTop_ + sizeof(T) * count >= stackEnd_) if (RAPIDJSON_UNLIKELY(stackTop_ + sizeof(T) * count > stackEnd_))
Expand<T>(count); Expand<T>(count);
}
template<typename T>
RAPIDJSON_FORCEINLINE T* Push(size_t count = 1) {
Reserve<T>(count);
return PushUnsafe<T>(count);
}
template<typename T>
RAPIDJSON_FORCEINLINE T* PushUnsafe(size_t count = 1) {
RAPIDJSON_ASSERT(stackTop_);
RAPIDJSON_ASSERT(stackTop_ + sizeof(T) * count <= stackEnd_);
T* ret = reinterpret_cast<T*>(stackTop_); T* ret = reinterpret_cast<T*>(stackTop_);
stackTop_ += sizeof(T) * count; stackTop_ += sizeof(T) * count;
return ret; return ret;
@ -122,9 +147,32 @@ public:
} }
template<typename T> template<typename T>
T* Bottom() { return (T*)stack_; } const T* Top() const {
RAPIDJSON_ASSERT(GetSize() >= sizeof(T));
return reinterpret_cast<T*>(stackTop_ - sizeof(T));
}
template<typename T>
T* End() { return reinterpret_cast<T*>(stackTop_); }
template<typename T>
const T* End() const { return reinterpret_cast<T*>(stackTop_); }
template<typename T>
T* Bottom() { return reinterpret_cast<T*>(stack_); }
template<typename T>
const T* Bottom() const { return reinterpret_cast<T*>(stack_); }
bool HasAllocator() const {
return allocator_ != 0;
}
Allocator& GetAllocator() {
RAPIDJSON_ASSERT(allocator_);
return *allocator_;
}
Allocator& GetAllocator() { return *allocator_; }
bool Empty() const { return stackTop_ == stack_; } bool Empty() const { return stackTop_ == stack_; }
size_t GetSize() const { return static_cast<size_t>(stackTop_ - stack_); } size_t GetSize() const { return static_cast<size_t>(stackTop_ - stack_); }
size_t GetCapacity() const { return static_cast<size_t>(stackEnd_ - stack_); } size_t GetCapacity() const { return static_cast<size_t>(stackEnd_ - stack_); }
@ -136,7 +184,7 @@ private:
size_t newCapacity; size_t newCapacity;
if (stack_ == 0) { if (stack_ == 0) {
if (!allocator_) if (!allocator_)
ownAllocator_ = allocator_ = RAPIDJSON_NEW(Allocator()); ownAllocator_ = allocator_ = RAPIDJSON_NEW(Allocator)();
newCapacity = initialCapacity_; newCapacity = initialCapacity_;
} else { } else {
newCapacity = GetCapacity(); newCapacity = GetCapacity();
@ -151,7 +199,7 @@ private:
void Resize(size_t newCapacity) { void Resize(size_t newCapacity) {
const size_t size = GetSize(); // Backup the current size const size_t size = GetSize(); // Backup the current size
stack_ = (char*)allocator_->Realloc(stack_, GetCapacity(), newCapacity); stack_ = static_cast<char*>(allocator_->Realloc(stack_, GetCapacity(), newCapacity));
stackTop_ = stack_ + size; stackTop_ = stack_ + size;
stackEnd_ = stack_ + newCapacity; stackEnd_ = stack_ + newCapacity;
} }
@ -176,4 +224,8 @@ private:
} // namespace internal } // namespace internal
RAPIDJSON_NAMESPACE_END RAPIDJSON_NAMESPACE_END
#if defined(__clang__)
RAPIDJSON_DIAG_POP
#endif
#endif // RAPIDJSON_STACK_H_ #endif // RAPIDJSON_STACK_H_

View File

@ -15,7 +15,8 @@
#ifndef RAPIDJSON_INTERNAL_STRFUNC_H_ #ifndef RAPIDJSON_INTERNAL_STRFUNC_H_
#define RAPIDJSON_INTERNAL_STRFUNC_H_ #define RAPIDJSON_INTERNAL_STRFUNC_H_
#include "../rapidjson.h" #include "../stream.h"
#include <cwchar>
RAPIDJSON_NAMESPACE_BEGIN RAPIDJSON_NAMESPACE_BEGIN
namespace internal { namespace internal {
@ -28,11 +29,40 @@ namespace internal {
*/ */
template <typename Ch> template <typename Ch>
inline SizeType StrLen(const Ch* s) { inline SizeType StrLen(const Ch* s) {
RAPIDJSON_ASSERT(s != 0);
const Ch* p = s; const Ch* p = s;
while (*p) ++p; while (*p) ++p;
return SizeType(p - s); return SizeType(p - s);
} }
template <>
inline SizeType StrLen(const char* s) {
return SizeType(std::strlen(s));
}
template <>
inline SizeType StrLen(const wchar_t* s) {
return SizeType(std::wcslen(s));
}
//! Returns number of code points in a encoded string.
template<typename Encoding>
bool CountStringCodePoint(const typename Encoding::Ch* s, SizeType length, SizeType* outCount) {
RAPIDJSON_ASSERT(s != 0);
RAPIDJSON_ASSERT(outCount != 0);
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 } // namespace internal
RAPIDJSON_NAMESPACE_END RAPIDJSON_NAMESPACE_END

View File

@ -15,7 +15,6 @@
#ifndef RAPIDJSON_STRTOD_ #ifndef RAPIDJSON_STRTOD_
#define RAPIDJSON_STRTOD_ #define RAPIDJSON_STRTOD_
#include "../rapidjson.h"
#include "ieee754.h" #include "ieee754.h"
#include "biginteger.h" #include "biginteger.h"
#include "diyfp.h" #include "diyfp.h"
@ -95,13 +94,13 @@ inline int CheckWithinHalfULP(double b, const BigInteger& d, int dExp) {
hS_Exp2 -= common_Exp2; hS_Exp2 -= common_Exp2;
BigInteger dS = d; BigInteger dS = d;
dS.MultiplyPow5(dS_Exp5) <<= dS_Exp2; dS.MultiplyPow5(static_cast<unsigned>(dS_Exp5)) <<= static_cast<unsigned>(dS_Exp2);
BigInteger bS(bInt); BigInteger bS(bInt);
bS.MultiplyPow5(bS_Exp5) <<= bS_Exp2; bS.MultiplyPow5(static_cast<unsigned>(bS_Exp5)) <<= static_cast<unsigned>(bS_Exp2);
BigInteger hS(1); BigInteger hS(1);
hS.MultiplyPow5(hS_Exp5) <<= hS_Exp2; hS.MultiplyPow5(static_cast<unsigned>(hS_Exp5)) <<= static_cast<unsigned>(hS_Exp2);
BigInteger delta(0); BigInteger delta(0);
dS.Difference(bS, &delta); dS.Difference(bS, &delta);
@ -134,22 +133,22 @@ inline bool StrtodDiyFp(const char* decimals, size_t length, size_t decimalPosit
if (significand > RAPIDJSON_UINT64_C2(0x19999999, 0x99999999) || if (significand > RAPIDJSON_UINT64_C2(0x19999999, 0x99999999) ||
(significand == RAPIDJSON_UINT64_C2(0x19999999, 0x99999999) && decimals[i] > '5')) (significand == RAPIDJSON_UINT64_C2(0x19999999, 0x99999999) && decimals[i] > '5'))
break; break;
significand = significand * 10 + (decimals[i] - '0'); significand = significand * 10u + static_cast<unsigned>(decimals[i] - '0');
} }
if (i < length && decimals[i] >= '5') // Rounding if (i < length && decimals[i] >= '5') // Rounding
significand++; significand++;
size_t remaining = length - i; size_t remaining = length - i;
const unsigned kUlpShift = 3; const int kUlpShift = 3;
const unsigned kUlp = 1 << kUlpShift; const int kUlp = 1 << kUlpShift;
int error = (remaining == 0) ? 0 : kUlp / 2; int64_t error = (remaining == 0) ? 0 : kUlp / 2;
DiyFp v(significand, 0); DiyFp v(significand, 0);
v = v.Normalize(); v = v.Normalize();
error <<= -v.e; error <<= -v.e;
const int dExp = (int)decimalPosition - (int)i + exp; const int dExp = static_cast<int>(decimalPosition) - static_cast<int>(i) + exp;
int actualExp; int actualExp;
DiyFp cachedPower = GetCachedPower10(dExp, &actualExp); DiyFp cachedPower = GetCachedPower10(dExp, &actualExp);
@ -166,7 +165,7 @@ inline bool StrtodDiyFp(const char* decimals, size_t length, size_t decimalPosit
int adjustment = dExp - actualExp - 1; int adjustment = dExp - actualExp - 1;
RAPIDJSON_ASSERT(adjustment >= 0 && adjustment < 7); RAPIDJSON_ASSERT(adjustment >= 0 && adjustment < 7);
v = v * kPow10[adjustment]; v = v * kPow10[adjustment];
if (length + adjustment > 19) // has more digits than decimal digits in 64-bit if (length + static_cast<unsigned>(adjustment)> 19u) // has more digits than decimal digits in 64-bit
error += kUlp / 2; error += kUlp / 2;
} }
@ -178,10 +177,10 @@ inline bool StrtodDiyFp(const char* decimals, size_t length, size_t decimalPosit
v = v.Normalize(); v = v.Normalize();
error <<= oldExp - v.e; error <<= oldExp - v.e;
const unsigned effectiveSignificandSize = Double::EffectiveSignificandSize(64 + v.e); const int effectiveSignificandSize = Double::EffectiveSignificandSize(64 + v.e);
unsigned precisionSize = 64 - effectiveSignificandSize; int precisionSize = 64 - effectiveSignificandSize;
if (precisionSize + kUlpShift >= 64) { if (precisionSize + kUlpShift >= 64) {
unsigned scaleExp = (precisionSize + kUlpShift) - 63; int scaleExp = (precisionSize + kUlpShift) - 63;
v.f >>= scaleExp; v.f >>= scaleExp;
v.e += scaleExp; v.e += scaleExp;
error = (error >> scaleExp) + 1 + kUlp; error = (error >> scaleExp) + 1 + kUlp;
@ -191,7 +190,7 @@ inline bool StrtodDiyFp(const char* decimals, size_t length, size_t decimalPosit
DiyFp rounded(v.f >> precisionSize, v.e + precisionSize); DiyFp rounded(v.f >> precisionSize, v.e + precisionSize);
const uint64_t precisionBits = (v.f & ((uint64_t(1) << precisionSize) - 1)) * kUlp; const uint64_t precisionBits = (v.f & ((uint64_t(1) << precisionSize) - 1)) * kUlp;
const uint64_t halfWay = (uint64_t(1) << (precisionSize - 1)) * kUlp; const uint64_t halfWay = (uint64_t(1) << (precisionSize - 1)) * kUlp;
if (precisionBits >= halfWay + error) { if (precisionBits >= halfWay + static_cast<unsigned>(error)) {
rounded.f++; rounded.f++;
if (rounded.f & (DiyFp::kDpHiddenBit << 1)) { // rounding overflows mantissa (issue #340) if (rounded.f & (DiyFp::kDpHiddenBit << 1)) { // rounding overflows mantissa (issue #340)
rounded.f >>= 1; rounded.f >>= 1;
@ -201,12 +200,12 @@ inline bool StrtodDiyFp(const char* decimals, size_t length, size_t decimalPosit
*result = rounded.ToDouble(); *result = rounded.ToDouble();
return halfWay - error >= precisionBits || precisionBits >= halfWay + error; return halfWay - static_cast<unsigned>(error) >= precisionBits || precisionBits >= halfWay + static_cast<unsigned>(error);
} }
inline double StrtodBigInteger(double approx, const char* decimals, size_t length, size_t decimalPosition, int exp) { inline double StrtodBigInteger(double approx, const char* decimals, size_t length, size_t decimalPosition, int exp) {
const BigInteger dInt(decimals, length); const BigInteger dInt(decimals, length);
const int dExp = (int)decimalPosition - (int)length + exp; const int dExp = static_cast<int>(decimalPosition) - static_cast<int>(length) + exp;
Double a(approx); Double a(approx);
int cmp = CheckWithinHalfULP(a.Value(), dInt, dExp); int cmp = CheckWithinHalfULP(a.Value(), dInt, dExp);
if (cmp < 0) if (cmp < 0)
@ -246,10 +245,10 @@ inline double StrtodFullPrecision(double d, int p, const char* decimals, size_t
// Trim right-most digits // Trim right-most digits
const int kMaxDecimalDigit = 780; const int kMaxDecimalDigit = 780;
if ((int)length > kMaxDecimalDigit) { if (static_cast<int>(length) > kMaxDecimalDigit) {
int delta = (int(length) - kMaxDecimalDigit); int delta = (static_cast<int>(length) - kMaxDecimalDigit);
exp += delta; exp += delta;
decimalPosition -= delta; decimalPosition -= static_cast<unsigned>(delta);
length = kMaxDecimalDigit; length = kMaxDecimalDigit;
} }

View File

@ -17,6 +17,11 @@
#include "../rapidjson.h" #include "../rapidjson.h"
#if defined(__clang__)
RAPIDJSON_DIAG_PUSH
RAPIDJSON_DIAG_OFF(c++98-compat)
#endif
RAPIDJSON_NAMESPACE_BEGIN RAPIDJSON_NAMESPACE_BEGIN
namespace internal { namespace internal {
@ -34,4 +39,8 @@ inline void Swap(T& a, T& b) RAPIDJSON_NOEXCEPT {
} // namespace internal } // namespace internal
RAPIDJSON_NAMESPACE_END RAPIDJSON_NAMESPACE_END
#if defined(__clang__)
RAPIDJSON_DIAG_POP
#endif
#endif // RAPIDJSON_INTERNAL_SWAP_H_ #endif // RAPIDJSON_INTERNAL_SWAP_H_

View File

@ -0,0 +1,115 @@
// 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_ISTREAMWRAPPER_H_
#define RAPIDJSON_ISTREAMWRAPPER_H_
#include "stream.h"
#include <iosfwd>
#ifdef __clang__
RAPIDJSON_DIAG_PUSH
RAPIDJSON_DIAG_OFF(padded)
#endif
#ifdef _MSC_VER
RAPIDJSON_DIAG_PUSH
RAPIDJSON_DIAG_OFF(4351) // new behavior: elements of array 'array' will be default initialized
#endif
RAPIDJSON_NAMESPACE_BEGIN
//! Wrapper of \c std::basic_istream into RapidJSON's Stream concept.
/*!
The classes can be wrapped including but not limited to:
- \c std::istringstream
- \c std::stringstream
- \c std::wistringstream
- \c std::wstringstream
- \c std::ifstream
- \c std::fstream
- \c std::wifstream
- \c std::wfstream
\tparam StreamType Class derived from \c std::basic_istream.
*/
template <typename StreamType>
class BasicIStreamWrapper {
public:
typedef typename StreamType::char_type Ch;
BasicIStreamWrapper(StreamType& stream) : stream_(stream), count_(), peekBuffer_() {}
Ch Peek() const {
typename StreamType::int_type c = stream_.peek();
return RAPIDJSON_LIKELY(c != StreamType::traits_type::eof()) ? static_cast<Ch>(c) : static_cast<Ch>('\0');
}
Ch Take() {
typename StreamType::int_type c = stream_.get();
if (RAPIDJSON_LIKELY(c != StreamType::traits_type::eof())) {
count_++;
return static_cast<Ch>(c);
}
else
return '\0';
}
// tellg() may return -1 when failed. So we count by ourself.
size_t Tell() const { return count_; }
Ch* PutBegin() { RAPIDJSON_ASSERT(false); return 0; }
void Put(Ch) { RAPIDJSON_ASSERT(false); }
void Flush() { RAPIDJSON_ASSERT(false); }
size_t PutEnd(Ch*) { RAPIDJSON_ASSERT(false); return 0; }
// For encoding detection only.
const Ch* Peek4() const {
RAPIDJSON_ASSERT(sizeof(Ch) == 1); // Only usable for byte stream.
int i;
bool hasError = false;
for (i = 0; i < 4; ++i) {
typename StreamType::int_type c = stream_.get();
if (c == StreamType::traits_type::eof()) {
hasError = true;
stream_.clear();
break;
}
peekBuffer_[i] = static_cast<Ch>(c);
}
for (--i; i >= 0; --i)
stream_.putback(peekBuffer_[i]);
return !hasError ? peekBuffer_ : 0;
}
private:
BasicIStreamWrapper(const BasicIStreamWrapper&);
BasicIStreamWrapper& operator=(const BasicIStreamWrapper&);
StreamType& stream_;
size_t count_; //!< Number of characters read. Note:
mutable Ch peekBuffer_[4];
};
typedef BasicIStreamWrapper<std::istream> IStreamWrapper;
typedef BasicIStreamWrapper<std::wistream> WIStreamWrapper;
#if defined(__clang__) || defined(_MSC_VER)
RAPIDJSON_DIAG_POP
#endif
RAPIDJSON_NAMESPACE_END
#endif // RAPIDJSON_ISTREAMWRAPPER_H_

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@ -15,7 +15,7 @@
#ifndef RAPIDJSON_MEMORYBUFFER_H_ #ifndef RAPIDJSON_MEMORYBUFFER_H_
#define RAPIDJSON_MEMORYBUFFER_H_ #define RAPIDJSON_MEMORYBUFFER_H_
#include "rapidjson.h" #include "stream.h"
#include "internal/stack.h" #include "internal/stack.h"
RAPIDJSON_NAMESPACE_BEGIN RAPIDJSON_NAMESPACE_BEGIN

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@ -15,7 +15,13 @@
#ifndef RAPIDJSON_MEMORYSTREAM_H_ #ifndef RAPIDJSON_MEMORYSTREAM_H_
#define RAPIDJSON_MEMORYSTREAM_H_ #define RAPIDJSON_MEMORYSTREAM_H_
#include "rapidjson.h" #include "stream.h"
#ifdef __clang__
RAPIDJSON_DIAG_PUSH
RAPIDJSON_DIAG_OFF(unreachable-code)
RAPIDJSON_DIAG_OFF(missing-noreturn)
#endif
RAPIDJSON_NAMESPACE_BEGIN RAPIDJSON_NAMESPACE_BEGIN
@ -36,8 +42,8 @@ struct MemoryStream {
MemoryStream(const Ch *src, size_t size) : src_(src), begin_(src), end_(src + size), size_(size) {} MemoryStream(const Ch *src, size_t size) : src_(src), begin_(src), end_(src + size), size_(size) {}
Ch Peek() const { return (src_ == end_) ? '\0' : *src_; } Ch Peek() const { return RAPIDJSON_UNLIKELY(src_ == end_) ? '\0' : *src_; }
Ch Take() { return (src_ == end_) ? '\0' : *src_++; } Ch Take() { return RAPIDJSON_UNLIKELY(src_ == end_) ? '\0' : *src_++; }
size_t Tell() const { return static_cast<size_t>(src_ - begin_); } size_t Tell() const { return static_cast<size_t>(src_ - begin_); }
Ch* PutBegin() { RAPIDJSON_ASSERT(false); return 0; } Ch* PutBegin() { RAPIDJSON_ASSERT(false); return 0; }
@ -58,4 +64,8 @@ struct MemoryStream {
RAPIDJSON_NAMESPACE_END RAPIDJSON_NAMESPACE_END
#ifdef __clang__
RAPIDJSON_DIAG_POP
#endif
#endif // RAPIDJSON_MEMORYBUFFER_H_ #endif // RAPIDJSON_MEMORYBUFFER_H_

View File

@ -89,14 +89,14 @@
#include <limits.h> #include <limits.h>
// For Visual Studio 6 in C++ mode and for many Visual Studio versions when // For Visual Studio 6 in C++ mode and for many Visual Studio versions when
// compiling for ARM we should wrap <wchar.h> include with 'extern "C++" {}' // compiling for ARM we have to wrap <wchar.h> include with 'extern "C++" {}'
// or compiler give many errors like this: // or compiler would give many errors like this:
// error C2733: second C linkage of overloaded function 'wmemchr' not allowed // error C2733: second C linkage of overloaded function 'wmemchr' not allowed
#ifdef __cplusplus #if defined(__cplusplus) && !defined(_M_ARM)
extern "C" { extern "C" {
#endif #endif
# include <wchar.h> # include <wchar.h>
#ifdef __cplusplus #if defined(__cplusplus) && !defined(_M_ARM)
} }
#endif #endif

View File

@ -0,0 +1,81 @@
// 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_OSTREAMWRAPPER_H_
#define RAPIDJSON_OSTREAMWRAPPER_H_
#include "stream.h"
#include <iosfwd>
#ifdef __clang__
RAPIDJSON_DIAG_PUSH
RAPIDJSON_DIAG_OFF(padded)
#endif
RAPIDJSON_NAMESPACE_BEGIN
//! Wrapper of \c std::basic_ostream into RapidJSON's Stream concept.
/*!
The classes can be wrapped including but not limited to:
- \c std::ostringstream
- \c std::stringstream
- \c std::wpstringstream
- \c std::wstringstream
- \c std::ifstream
- \c std::fstream
- \c std::wofstream
- \c std::wfstream
\tparam StreamType Class derived from \c std::basic_ostream.
*/
template <typename StreamType>
class BasicOStreamWrapper {
public:
typedef typename StreamType::char_type Ch;
BasicOStreamWrapper(StreamType& stream) : stream_(stream) {}
void Put(Ch c) {
stream_.put(c);
}
void Flush() {
stream_.flush();
}
// Not implemented
char Peek() const { RAPIDJSON_ASSERT(false); return 0; }
char Take() { RAPIDJSON_ASSERT(false); return 0; }
size_t Tell() const { RAPIDJSON_ASSERT(false); return 0; }
char* PutBegin() { RAPIDJSON_ASSERT(false); return 0; }
size_t PutEnd(char*) { RAPIDJSON_ASSERT(false); return 0; }
private:
BasicOStreamWrapper(const BasicOStreamWrapper&);
BasicOStreamWrapper& operator=(const BasicOStreamWrapper&);
StreamType& stream_;
};
typedef BasicOStreamWrapper<std::ostream> OStreamWrapper;
typedef BasicOStreamWrapper<std::wostream> WOStreamWrapper;
#ifdef __clang__
RAPIDJSON_DIAG_POP
#endif
RAPIDJSON_NAMESPACE_END
#endif // RAPIDJSON_OSTREAMWRAPPER_H_

View File

@ -18,6 +18,16 @@
#include "document.h" #include "document.h"
#include "internal/itoa.h" #include "internal/itoa.h"
#ifdef __clang__
RAPIDJSON_DIAG_PUSH
RAPIDJSON_DIAG_OFF(switch-enum)
#endif
#ifdef _MSC_VER
RAPIDJSON_DIAG_PUSH
RAPIDJSON_DIAG_OFF(4512) // assignment operator could not be generated
#endif
RAPIDJSON_NAMESPACE_BEGIN RAPIDJSON_NAMESPACE_BEGIN
static const SizeType kPointerInvalidIndex = ~SizeType(0); //!< Represents an invalid index in GenericPointer::Token static const SizeType kPointerInvalidIndex = ~SizeType(0); //!< Represents an invalid index in GenericPointer::Token
@ -71,7 +81,7 @@ template <typename ValueType, typename Allocator = CrtAllocator>
class GenericPointer { class GenericPointer {
public: public:
typedef typename ValueType::EncodingType EncodingType; //!< Encoding type from Value typedef typename ValueType::EncodingType EncodingType; //!< Encoding type from Value
typedef typename EncodingType::Ch Ch; //!< Character type from Value typedef typename ValueType::Ch Ch; //!< Character type from Value
//! A token is the basic units of internal representation. //! A token is the basic units of internal representation.
/*! /*!
@ -96,7 +106,7 @@ public:
//@{ //@{
//! Default constructor. //! Default constructor.
GenericPointer() : allocator_(), ownAllocator_(), nameBuffer_(), tokens_(), tokenCount_(), parseErrorOffset_(), parseErrorCode_(kPointerParseErrorNone) {} GenericPointer(Allocator* allocator = 0) : allocator_(allocator), ownAllocator_(), nameBuffer_(), tokens_(), tokenCount_(), parseErrorOffset_(), parseErrorCode_(kPointerParseErrorNone) {}
//! Constructor that parses a string or URI fragment representation. //! Constructor that parses a string or URI fragment representation.
/*! /*!
@ -155,7 +165,7 @@ public:
GenericPointer(const Token* tokens, size_t tokenCount) : allocator_(), ownAllocator_(), nameBuffer_(), tokens_(const_cast<Token*>(tokens)), tokenCount_(tokenCount), parseErrorOffset_(), parseErrorCode_(kPointerParseErrorNone) {} GenericPointer(const Token* tokens, size_t tokenCount) : allocator_(), ownAllocator_(), nameBuffer_(), tokens_(const_cast<Token*>(tokens)), tokenCount_(tokenCount), parseErrorOffset_(), parseErrorCode_(kPointerParseErrorNone) {}
//! Copy constructor. //! Copy constructor.
GenericPointer(const GenericPointer& rhs) : allocator_(), ownAllocator_(), nameBuffer_(), tokens_(), tokenCount_(), parseErrorOffset_(), parseErrorCode_(kPointerParseErrorNone) { GenericPointer(const GenericPointer& rhs, Allocator* allocator = 0) : allocator_(allocator), ownAllocator_(), nameBuffer_(), tokens_(), tokenCount_(), parseErrorOffset_(), parseErrorCode_(kPointerParseErrorNone) {
*this = rhs; *this = rhs;
} }
@ -230,7 +240,7 @@ public:
template <typename T> template <typename T>
RAPIDJSON_DISABLEIF_RETURN((internal::NotExpr<internal::IsSame<typename internal::RemoveConst<T>::Type, Ch> >), (GenericPointer)) RAPIDJSON_DISABLEIF_RETURN((internal::NotExpr<internal::IsSame<typename internal::RemoveConst<T>::Type, Ch> >), (GenericPointer))
Append(T* name, Allocator* allocator = 0) const { Append(T* name, Allocator* allocator = 0) const {
return Append(name, StrLen(name), allocator); return Append(name, internal::StrLen(name), allocator);
} }
#if RAPIDJSON_HAS_STDSTRING #if RAPIDJSON_HAS_STDSTRING
@ -253,17 +263,18 @@ public:
*/ */
GenericPointer Append(SizeType index, Allocator* allocator = 0) const { GenericPointer Append(SizeType index, Allocator* allocator = 0) const {
char buffer[21]; char buffer[21];
SizeType length = (sizeof(SizeType) == 4 ? internal::u32toa(index, buffer): internal::u64toa(index, buffer)) - buffer; char* end = sizeof(SizeType) == 4 ? internal::u32toa(index, buffer) : internal::u64toa(index, buffer);
SizeType length = static_cast<SizeType>(end - buffer);
buffer[length] = '\0'; buffer[length] = '\0';
if (sizeof(Ch) == 1) { if (sizeof(Ch) == 1) {
Token token = { (Ch*)buffer, length, index }; Token token = { reinterpret_cast<Ch*>(buffer), length, index };
return Append(token, allocator); return Append(token, allocator);
} }
else { else {
Ch name[21]; Ch name[21];
for (size_t i = 0; i <= length; i++) for (size_t i = 0; i <= length; i++)
name[i] = buffer[i]; name[i] = static_cast<Ch>(buffer[i]);
Token token = { name, length, index }; Token token = { name, length, index };
return Append(token, allocator); return Append(token, allocator);
} }
@ -271,7 +282,7 @@ public:
//! Append a token by value, and return a new Pointer //! Append a token by value, and return a new Pointer
/*! /*!
\param value Value (either Uint or String) to be appended. \param token token to be appended.
\param allocator Allocator for the newly return Pointer. \param allocator Allocator for the newly return Pointer.
\return A new Pointer with appended token. \return A new Pointer with appended token.
*/ */
@ -299,6 +310,9 @@ public:
//@} //@}
//! Get the allocator of this pointer.
Allocator& GetAllocator() { return *allocator_; }
//!@name Tokens //!@name Tokens
//@{ //@{
@ -390,7 +404,7 @@ public:
bool exist = true; bool exist = true;
for (const Token *t = tokens_; t != tokens_ + tokenCount_; ++t) { for (const Token *t = tokens_; t != tokens_ + tokenCount_; ++t) {
if (v->IsArray() && t->name[0] == '-' && t->length == 1) { if (v->IsArray() && t->name[0] == '-' && t->length == 1) {
v->PushBack(Value().Move(), allocator); v->PushBack(ValueType().Move(), allocator);
v = &((*v)[v->Size() - 1]); v = &((*v)[v->Size() - 1]);
exist = false; exist = false;
} }
@ -408,7 +422,7 @@ public:
if (t->index >= v->Size()) { if (t->index >= v->Size()) {
v->Reserve(t->index + 1, allocator); v->Reserve(t->index + 1, allocator);
while (t->index >= v->Size()) while (t->index >= v->Size())
v->PushBack(Value().Move(), allocator); v->PushBack(ValueType().Move(), allocator);
exist = false; exist = false;
} }
v = &((*v)[t->index]); v = &((*v)[t->index]);
@ -416,7 +430,7 @@ public:
else { else {
typename ValueType::MemberIterator m = v->FindMember(GenericStringRef<Ch>(t->name, t->length)); typename ValueType::MemberIterator m = v->FindMember(GenericStringRef<Ch>(t->name, t->length));
if (m == v->MemberEnd()) { if (m == v->MemberEnd()) {
v->AddMember(Value(t->name, t->length, allocator).Move(), Value().Move(), allocator); v->AddMember(ValueType(t->name, t->length, allocator).Move(), ValueType().Move(), allocator);
v = &(--v->MemberEnd())->value; // Assumes AddMember() appends at the end v = &(--v->MemberEnd())->value; // Assumes AddMember() appends at the end
exist = false; exist = false;
} }
@ -435,7 +449,6 @@ public:
//! Creates a value in a document. //! Creates a value in a document.
/*! /*!
\param document A document to be resolved. \param document A document to be resolved.
\param allocator Allocator for creating the values if the specified value or its parents are not exist.
\param alreadyExist If non-null, it stores whether the resolved value is already exist. \param alreadyExist If non-null, it stores whether the resolved value is already exist.
\return The resolved newly created, or already exists value. \return The resolved newly created, or already exists value.
*/ */
@ -452,9 +465,18 @@ public:
//! Query a value in a subtree. //! Query a value in a subtree.
/*! /*!
\param root Root value of a DOM sub-tree to be resolved. It can be any value other than document root. \param root Root value of a DOM sub-tree to be resolved. It can be any value other than document root.
\param unresolvedTokenIndex If the pointer cannot resolve a token in the pointer, this parameter can obtain the index of unresolved token.
\return Pointer to the value if it can be resolved. Otherwise null. \return Pointer to the value if it can be resolved. Otherwise null.
\note
There are only 3 situations when a value cannot be resolved:
1. A value in the path is not an array nor object.
2. An object value does not contain the token.
3. A token is out of range of an array value.
Use unresolvedTokenIndex to retrieve the token index.
*/ */
ValueType* Get(ValueType& root) const { ValueType* Get(ValueType& root, size_t* unresolvedTokenIndex = 0) const {
RAPIDJSON_ASSERT(IsValid()); RAPIDJSON_ASSERT(IsValid());
ValueType* v = &root; ValueType* v = &root;
for (const Token *t = tokens_; t != tokens_ + tokenCount_; ++t) { for (const Token *t = tokens_; t != tokens_ + tokenCount_; ++t) {
@ -463,18 +485,23 @@ public:
{ {
typename ValueType::MemberIterator m = v->FindMember(GenericStringRef<Ch>(t->name, t->length)); typename ValueType::MemberIterator m = v->FindMember(GenericStringRef<Ch>(t->name, t->length));
if (m == v->MemberEnd()) if (m == v->MemberEnd())
return 0; break;
v = &m->value; v = &m->value;
} }
break; continue;
case kArrayType: case kArrayType:
if (t->index == kPointerInvalidIndex || t->index >= v->Size()) if (t->index == kPointerInvalidIndex || t->index >= v->Size())
return 0;
v = &((*v)[t->index]);
break; break;
v = &((*v)[t->index]);
continue;
default: default:
return 0; break;
} }
// Error: unresolved token
if (unresolvedTokenIndex)
*unresolvedTokenIndex = static_cast<size_t>(t - tokens_);
return 0;
} }
return v; return v;
} }
@ -484,7 +511,9 @@ public:
\param root Root value of a DOM sub-tree to be resolved. It can be any value other than document root. \param root Root value of a DOM sub-tree to be resolved. It can be any value other than document root.
\return Pointer to the value if it can be resolved. Otherwise null. \return Pointer to the value if it can be resolved. Otherwise null.
*/ */
const ValueType* Get(const ValueType& root) const { return Get(const_cast<ValueType&>(root)); } const ValueType* Get(const ValueType& root, size_t* unresolvedTokenIndex = 0) const {
return Get(const_cast<ValueType&>(root), unresolvedTokenIndex);
}
//@} //@}
@ -525,7 +554,7 @@ public:
//! Query a value in a subtree with default primitive value. //! Query a value in a subtree with default primitive value.
/*! /*!
\tparam T \tparam T Either \ref Type, \c int, \c unsigned, \c int64_t, \c uint64_t, \c bool \tparam T Either \ref Type, \c int, \c unsigned, \c int64_t, \c uint64_t, \c bool
*/ */
template <typename T> template <typename T>
RAPIDJSON_DISABLEIF_RETURN((internal::OrExpr<internal::IsPointer<T>, internal::IsGenericValue<T> >), (ValueType&)) RAPIDJSON_DISABLEIF_RETURN((internal::OrExpr<internal::IsPointer<T>, internal::IsGenericValue<T> >), (ValueType&))
@ -555,7 +584,7 @@ public:
//! Query a value in a document with default primitive value. //! Query a value in a document with default primitive value.
/*! /*!
\tparam T \tparam T Either \ref Type, \c int, \c unsigned, \c int64_t, \c uint64_t, \c bool \tparam T Either \ref Type, \c int, \c unsigned, \c int64_t, \c uint64_t, \c bool
*/ */
template <typename T, typename stackAllocator> template <typename T, typename stackAllocator>
RAPIDJSON_DISABLEIF_RETURN((internal::OrExpr<internal::IsPointer<T>, internal::IsGenericValue<T> >), (ValueType&)) RAPIDJSON_DISABLEIF_RETURN((internal::OrExpr<internal::IsPointer<T>, internal::IsGenericValue<T> >), (ValueType&))
@ -601,7 +630,7 @@ public:
//! Set a primitive value in a subtree. //! Set a primitive value in a subtree.
/*! /*!
\tparam T \tparam T Either \ref Type, \c int, \c unsigned, \c int64_t, \c uint64_t, \c bool \tparam T Either \ref Type, \c int, \c unsigned, \c int64_t, \c uint64_t, \c bool
*/ */
template <typename T> template <typename T>
RAPIDJSON_DISABLEIF_RETURN((internal::OrExpr<internal::IsPointer<T>, internal::IsGenericValue<T> >), (ValueType&)) RAPIDJSON_DISABLEIF_RETURN((internal::OrExpr<internal::IsPointer<T>, internal::IsGenericValue<T> >), (ValueType&))
@ -637,7 +666,7 @@ public:
//! Set a primitive value in a document. //! Set a primitive value in a document.
/*! /*!
\tparam T \tparam T Either \ref Type, \c int, \c unsigned, \c int64_t, \c uint64_t, \c bool \tparam T Either \ref Type, \c int, \c unsigned, \c int64_t, \c uint64_t, \c bool
*/ */
template <typename T, typename stackAllocator> template <typename T, typename stackAllocator>
RAPIDJSON_DISABLEIF_RETURN((internal::OrExpr<internal::IsPointer<T>, internal::IsGenericValue<T> >), (ValueType&)) RAPIDJSON_DISABLEIF_RETURN((internal::OrExpr<internal::IsPointer<T>, internal::IsGenericValue<T> >), (ValueType&))
@ -729,7 +758,7 @@ private:
*/ */
Ch* CopyFromRaw(const GenericPointer& rhs, size_t extraToken = 0, size_t extraNameBufferSize = 0) { Ch* CopyFromRaw(const GenericPointer& rhs, size_t extraToken = 0, size_t extraNameBufferSize = 0) {
if (!allocator_) // allocator is independently owned. if (!allocator_) // allocator is independently owned.
ownAllocator_ = allocator_ = RAPIDJSON_NEW(Allocator()); ownAllocator_ = allocator_ = RAPIDJSON_NEW(Allocator)();
size_t nameBufferSize = rhs.tokenCount_; // null terminators for tokens size_t nameBufferSize = rhs.tokenCount_; // null terminators for tokens
for (Token *t = rhs.tokens_; t != rhs.tokens_ + rhs.tokenCount_; ++t) for (Token *t = rhs.tokens_; t != rhs.tokens_ + rhs.tokenCount_; ++t)
@ -738,8 +767,12 @@ private:
tokenCount_ = rhs.tokenCount_ + extraToken; tokenCount_ = rhs.tokenCount_ + extraToken;
tokens_ = static_cast<Token *>(allocator_->Malloc(tokenCount_ * sizeof(Token) + (nameBufferSize + extraNameBufferSize) * sizeof(Ch))); tokens_ = static_cast<Token *>(allocator_->Malloc(tokenCount_ * sizeof(Token) + (nameBufferSize + extraNameBufferSize) * sizeof(Ch)));
nameBuffer_ = reinterpret_cast<Ch *>(tokens_ + tokenCount_); nameBuffer_ = reinterpret_cast<Ch *>(tokens_ + tokenCount_);
if (rhs.tokenCount_ > 0) {
std::memcpy(tokens_, rhs.tokens_, rhs.tokenCount_ * sizeof(Token)); std::memcpy(tokens_, rhs.tokens_, rhs.tokenCount_ * sizeof(Token));
}
if (nameBufferSize > 0) {
std::memcpy(nameBuffer_, rhs.nameBuffer_, nameBufferSize * sizeof(Ch)); std::memcpy(nameBuffer_, rhs.nameBuffer_, nameBufferSize * sizeof(Ch));
}
// Adjust pointers to name buffer // Adjust pointers to name buffer
std::ptrdiff_t diff = nameBuffer_ - rhs.nameBuffer_; std::ptrdiff_t diff = nameBuffer_ - rhs.nameBuffer_;
@ -759,11 +792,13 @@ private:
} }
//! Parse a JSON String or its URI fragment representation into tokens. //! Parse a JSON String or its URI fragment representation into tokens.
#ifndef __clang__ // -Wdocumentation
/*! /*!
\param source Either a JSON Pointer string, or its URI fragment representation. Not need to be null terminated. \param source Either a JSON Pointer string, or its URI fragment representation. Not need to be null terminated.
\param length Length of the source string. \param length Length of the source string.
\note Source cannot be JSON String Representation of JSON Pointer, e.g. In "/\u0000", \u0000 will not be unescaped. \note Source cannot be JSON String Representation of JSON Pointer, e.g. In "/\u0000", \u0000 will not be unescaped.
*/ */
#endif
void Parse(const Ch* source, size_t length) { void Parse(const Ch* source, size_t length) {
RAPIDJSON_ASSERT(source != NULL); RAPIDJSON_ASSERT(source != NULL);
RAPIDJSON_ASSERT(nameBuffer_ == 0); RAPIDJSON_ASSERT(nameBuffer_ == 0);
@ -771,7 +806,7 @@ private:
// Create own allocator if user did not supply. // Create own allocator if user did not supply.
if (!allocator_) if (!allocator_)
ownAllocator_ = allocator_ = RAPIDJSON_NEW(Allocator()); ownAllocator_ = allocator_ = RAPIDJSON_NEW(Allocator)();
// Count number of '/' as tokenCount // Count number of '/' as tokenCount
tokenCount_ = 0; tokenCount_ = 0;
@ -857,7 +892,7 @@ private:
*name++ = c; *name++ = c;
} }
token->length = name - token->name; token->length = static_cast<SizeType>(name - token->name);
if (token->length == 0) if (token->length == 0)
isNumber = false; isNumber = false;
*name++ = '\0'; // Null terminator *name++ = '\0'; // Null terminator
@ -944,6 +979,8 @@ private:
*/ */
class PercentDecodeStream { class PercentDecodeStream {
public: public:
typedef typename ValueType::Ch Ch;
//! Constructor //! Constructor
/*! /*!
\param source Start of the stream \param source Start of the stream
@ -959,11 +996,11 @@ private:
src_++; src_++;
Ch c = 0; Ch c = 0;
for (int j = 0; j < 2; j++) { for (int j = 0; j < 2; j++) {
c <<= 4; c = static_cast<Ch>(c << 4);
Ch h = *src_; Ch h = *src_;
if (h >= '0' && h <= '9') c += h - '0'; if (h >= '0' && h <= '9') c = static_cast<Ch>(c + h - '0');
else if (h >= 'A' && h <= 'F') c += h - 'A' + 10; else if (h >= 'A' && h <= 'F') c = static_cast<Ch>(c + h - 'A' + 10);
else if (h >= 'a' && h <= 'f') c += h - 'a' + 10; else if (h >= 'a' && h <= 'f') c = static_cast<Ch>(c + h - 'a' + 10);
else { else {
valid_ = false; valid_ = false;
return 0; return 0;
@ -973,7 +1010,7 @@ private:
return c; return c;
} }
size_t Tell() const { return src_ - head_; } size_t Tell() const { return static_cast<size_t>(src_ - head_); }
bool IsValid() const { return valid_; } bool IsValid() const { return valid_; }
private: private:
@ -992,8 +1029,8 @@ private:
unsigned char u = static_cast<unsigned char>(c); unsigned char u = static_cast<unsigned char>(c);
static const char hexDigits[16] = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F' }; static const char hexDigits[16] = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F' };
os_.Put('%'); os_.Put('%');
os_.Put(hexDigits[u >> 4]); os_.Put(static_cast<typename OutputStream::Ch>(hexDigits[u >> 4]));
os_.Put(hexDigits[u & 15]); os_.Put(static_cast<typename OutputStream::Ch>(hexDigits[u & 15]));
} }
private: private:
OutputStream& os_; OutputStream& os_;
@ -1041,23 +1078,23 @@ typename DocumentType::ValueType& CreateValueByPointer(DocumentType& document, c
////////////////////////////////////////////////////////////////////////////// //////////////////////////////////////////////////////////////////////////////
template <typename T> template <typename T>
typename T::ValueType* GetValueByPointer(T& root, const GenericPointer<typename T::ValueType>& pointer) { typename T::ValueType* GetValueByPointer(T& root, const GenericPointer<typename T::ValueType>& pointer, size_t* unresolvedTokenIndex = 0) {
return pointer.Get(root); return pointer.Get(root, unresolvedTokenIndex);
} }
template <typename T> template <typename T>
const typename T::ValueType* GetValueByPointer(const T& root, const GenericPointer<typename T::ValueType>& pointer) { const typename T::ValueType* GetValueByPointer(const T& root, const GenericPointer<typename T::ValueType>& pointer, size_t* unresolvedTokenIndex = 0) {
return pointer.Get(root); return pointer.Get(root, unresolvedTokenIndex);
} }
template <typename T, typename CharType, size_t N> template <typename T, typename CharType, size_t N>
typename T::ValueType* GetValueByPointer(T& root, const CharType (&source)[N]) { typename T::ValueType* GetValueByPointer(T& root, const CharType (&source)[N], size_t* unresolvedTokenIndex = 0) {
return GenericPointer<typename T::ValueType>(source, N - 1).Get(root); return GenericPointer<typename T::ValueType>(source, N - 1).Get(root, unresolvedTokenIndex);
} }
template <typename T, typename CharType, size_t N> template <typename T, typename CharType, size_t N>
const typename T::ValueType* GetValueByPointer(const T& root, const CharType(&source)[N]) { const typename T::ValueType* GetValueByPointer(const T& root, const CharType(&source)[N], size_t* unresolvedTokenIndex = 0) {
return GenericPointer<typename T::ValueType>(source, N - 1).Get(root); return GenericPointer<typename T::ValueType>(source, N - 1).Get(root, unresolvedTokenIndex);
} }
////////////////////////////////////////////////////////////////////////////// //////////////////////////////////////////////////////////////////////////////
@ -1310,4 +1347,12 @@ bool EraseValueByPointer(T& root, const CharType(&source)[N]) {
RAPIDJSON_NAMESPACE_END RAPIDJSON_NAMESPACE_END
#ifdef __clang__
RAPIDJSON_DIAG_POP
#endif
#ifdef _MSC_VER
RAPIDJSON_DIAG_POP
#endif
#endif // RAPIDJSON_POINTER_H_ #endif // RAPIDJSON_POINTER_H_

View File

@ -22,8 +22,21 @@ RAPIDJSON_DIAG_PUSH
RAPIDJSON_DIAG_OFF(effc++) RAPIDJSON_DIAG_OFF(effc++)
#endif #endif
#if defined(__clang__)
RAPIDJSON_DIAG_PUSH
RAPIDJSON_DIAG_OFF(c++98-compat)
#endif
RAPIDJSON_NAMESPACE_BEGIN RAPIDJSON_NAMESPACE_BEGIN
//! Combination of PrettyWriter format flags.
/*! \see PrettyWriter::SetFormatOptions
*/
enum PrettyFormatOptions {
kFormatDefault = 0, //!< Default pretty formatting.
kFormatSingleLineArray = 1 //!< Format arrays on a single line.
};
//! Writer with indentation and spacing. //! Writer with indentation and spacing.
/*! /*!
\tparam OutputStream Type of ouptut os. \tparam OutputStream Type of ouptut os.
@ -31,10 +44,10 @@ RAPIDJSON_NAMESPACE_BEGIN
\tparam TargetEncoding Encoding of output stream. \tparam TargetEncoding Encoding of output stream.
\tparam StackAllocator Type of allocator for allocating memory of stack. \tparam StackAllocator Type of allocator for allocating memory of stack.
*/ */
template<typename OutputStream, typename SourceEncoding = UTF8<>, typename TargetEncoding = UTF8<>, typename StackAllocator = CrtAllocator> template<typename OutputStream, typename SourceEncoding = UTF8<>, typename TargetEncoding = UTF8<>, typename StackAllocator = CrtAllocator, unsigned writeFlags = kWriteDefaultFlags>
class PrettyWriter : public Writer<OutputStream, SourceEncoding, TargetEncoding, StackAllocator> { class PrettyWriter : public Writer<OutputStream, SourceEncoding, TargetEncoding, StackAllocator, writeFlags> {
public: public:
typedef Writer<OutputStream, SourceEncoding, TargetEncoding, StackAllocator> Base; typedef Writer<OutputStream, SourceEncoding, TargetEncoding, StackAllocator, writeFlags> Base;
typedef typename Base::Ch Ch; typedef typename Base::Ch Ch;
//! Constructor //! Constructor
@ -42,8 +55,17 @@ public:
\param allocator User supplied allocator. If it is null, it will create a private one. \param allocator User supplied allocator. If it is null, it will create a private one.
\param levelDepth Initial capacity of stack. \param levelDepth Initial capacity of stack.
*/ */
PrettyWriter(OutputStream& os, StackAllocator* allocator = 0, size_t levelDepth = Base::kDefaultLevelDepth) : explicit PrettyWriter(OutputStream& os, StackAllocator* allocator = 0, size_t levelDepth = Base::kDefaultLevelDepth) :
Base(os, allocator, levelDepth), indentChar_(' '), indentCharCount_(4) {} Base(os, allocator, levelDepth), indentChar_(' '), indentCharCount_(4), formatOptions_(kFormatDefault) {}
explicit PrettyWriter(StackAllocator* allocator = 0, size_t levelDepth = Base::kDefaultLevelDepth) :
Base(allocator, levelDepth), indentChar_(' '), indentCharCount_(4) {}
#if RAPIDJSON_HAS_CXX11_RVALUE_REFS
PrettyWriter(PrettyWriter&& rhs) :
Base(std::forward<PrettyWriter>(rhs)), indentChar_(rhs.indentChar_), indentCharCount_(rhs.indentCharCount_), formatOptions_(rhs.formatOptions_) {}
#endif
//! Set custom indentation. //! Set custom indentation.
/*! \param indentChar Character for indentation. Must be whitespace character (' ', '\\t', '\\n', '\\r'). /*! \param indentChar Character for indentation. Must be whitespace character (' ', '\\t', '\\n', '\\r').
@ -57,6 +79,14 @@ public:
return *this; return *this;
} }
//! Set pretty writer formatting options.
/*! \param options Formatting options.
*/
PrettyWriter& SetFormatOptions(PrettyFormatOptions options) {
formatOptions_ = options;
return *this;
}
/*! @name Implementation of Handler /*! @name Implementation of Handler
\see Handler \see Handler
*/ */
@ -70,7 +100,15 @@ public:
bool Uint64(uint64_t u64) { PrettyPrefix(kNumberType); return Base::WriteUint64(u64); } bool Uint64(uint64_t u64) { PrettyPrefix(kNumberType); return Base::WriteUint64(u64); }
bool Double(double d) { PrettyPrefix(kNumberType); return Base::WriteDouble(d); } bool Double(double d) { PrettyPrefix(kNumberType); return Base::WriteDouble(d); }
bool RawNumber(const Ch* str, SizeType length, bool copy = false) {
RAPIDJSON_ASSERT(str != 0);
(void)copy;
PrettyPrefix(kNumberType);
return Base::WriteString(str, length);
}
bool String(const Ch* str, SizeType length, bool copy = false) { bool String(const Ch* str, SizeType length, bool copy = false) {
RAPIDJSON_ASSERT(str != 0);
(void)copy; (void)copy;
PrettyPrefix(kStringType); PrettyPrefix(kStringType);
return Base::WriteString(str, length); return Base::WriteString(str, length);
@ -90,10 +128,18 @@ public:
bool Key(const Ch* str, SizeType length, bool copy = false) { return String(str, length, copy); } bool Key(const Ch* str, SizeType length, bool copy = false) { return String(str, length, copy); }
#if RAPIDJSON_HAS_STDSTRING
bool Key(const std::basic_string<Ch>& str) {
return Key(str.data(), SizeType(str.size()));
}
#endif
bool EndObject(SizeType memberCount = 0) { bool EndObject(SizeType memberCount = 0) {
(void)memberCount; (void)memberCount;
RAPIDJSON_ASSERT(Base::level_stack_.GetSize() >= sizeof(typename Base::Level)); RAPIDJSON_ASSERT(Base::level_stack_.GetSize() >= sizeof(typename Base::Level)); // not inside an Object
RAPIDJSON_ASSERT(!Base::level_stack_.template Top<typename Base::Level>()->inArray); RAPIDJSON_ASSERT(!Base::level_stack_.template Top<typename Base::Level>()->inArray); // currently inside an Array, not Object
RAPIDJSON_ASSERT(0 == Base::level_stack_.template Top<typename Base::Level>()->valueCount % 2); // Object has a Key without a Value
bool empty = Base::level_stack_.template Pop<typename Base::Level>(1)->valueCount == 0; bool empty = Base::level_stack_.template Pop<typename Base::Level>(1)->valueCount == 0;
if (!empty) { if (!empty) {
@ -104,7 +150,7 @@ public:
(void)ret; (void)ret;
RAPIDJSON_ASSERT(ret == true); RAPIDJSON_ASSERT(ret == true);
if (Base::level_stack_.Empty()) // end of json text if (Base::level_stack_.Empty()) // end of json text
Base::os_->Flush(); Base::Flush();
return true; return true;
} }
@ -120,7 +166,7 @@ public:
RAPIDJSON_ASSERT(Base::level_stack_.template Top<typename Base::Level>()->inArray); RAPIDJSON_ASSERT(Base::level_stack_.template Top<typename Base::Level>()->inArray);
bool empty = Base::level_stack_.template Pop<typename Base::Level>(1)->valueCount == 0; bool empty = Base::level_stack_.template Pop<typename Base::Level>(1)->valueCount == 0;
if (!empty) { if (!empty && !(formatOptions_ & kFormatSingleLineArray)) {
Base::os_->Put('\n'); Base::os_->Put('\n');
WriteIndent(); WriteIndent();
} }
@ -128,7 +174,7 @@ public:
(void)ret; (void)ret;
RAPIDJSON_ASSERT(ret == true); RAPIDJSON_ASSERT(ret == true);
if (Base::level_stack_.Empty()) // end of json text if (Base::level_stack_.Empty()) // end of json text
Base::os_->Flush(); Base::Flush();
return true; return true;
} }
@ -142,6 +188,22 @@ public:
bool Key(const Ch* str) { return Key(str, internal::StrLen(str)); } bool Key(const Ch* str) { return Key(str, internal::StrLen(str)); }
//@} //@}
//! Write a raw JSON value.
/*!
For user to write a stringified JSON as a value.
\param json A well-formed JSON value. It should not contain null character within [0, length - 1] range.
\param length Length of the json.
\param type Type of the root of json.
\note When using PrettyWriter::RawValue(), the result json may not be indented correctly.
*/
bool RawValue(const Ch* json, size_t length, Type type) {
RAPIDJSON_ASSERT(json != 0);
PrettyPrefix(type);
return Base::WriteRawValue(json, length);
}
protected: protected:
void PrettyPrefix(Type type) { void PrettyPrefix(Type type) {
(void)type; (void)type;
@ -151,12 +213,15 @@ protected:
if (level->inArray) { if (level->inArray) {
if (level->valueCount > 0) { if (level->valueCount > 0) {
Base::os_->Put(','); // add comma if it is not the first element in array Base::os_->Put(','); // add comma if it is not the first element in array
Base::os_->Put('\n'); if (formatOptions_ & kFormatSingleLineArray)
Base::os_->Put(' ');
} }
else
if (!(formatOptions_ & kFormatSingleLineArray)) {
Base::os_->Put('\n'); Base::os_->Put('\n');
WriteIndent(); WriteIndent();
} }
}
else { // in object else { // in object
if (level->valueCount > 0) { if (level->valueCount > 0) {
if (level->valueCount % 2 == 0) { if (level->valueCount % 2 == 0) {
@ -186,11 +251,12 @@ protected:
void WriteIndent() { void WriteIndent() {
size_t count = (Base::level_stack_.GetSize() / sizeof(typename Base::Level)) * indentCharCount_; size_t count = (Base::level_stack_.GetSize() / sizeof(typename Base::Level)) * indentCharCount_;
PutN(*Base::os_, indentChar_, count); PutN(*Base::os_, static_cast<typename OutputStream::Ch>(indentChar_), count);
} }
Ch indentChar_; Ch indentChar_;
unsigned indentCharCount_; unsigned indentCharCount_;
PrettyFormatOptions formatOptions_;
private: private:
// Prohibit copy constructor & assignment operator. // Prohibit copy constructor & assignment operator.
@ -200,6 +266,10 @@ private:
RAPIDJSON_NAMESPACE_END RAPIDJSON_NAMESPACE_END
#if defined(__clang__)
RAPIDJSON_DIAG_POP
#endif
#ifdef __GNUC__ #ifdef __GNUC__
RAPIDJSON_DIAG_POP RAPIDJSON_DIAG_POP
#endif #endif

View File

@ -49,6 +49,11 @@
// token stringification // token stringification
#define RAPIDJSON_STRINGIFY(x) RAPIDJSON_DO_STRINGIFY(x) #define RAPIDJSON_STRINGIFY(x) RAPIDJSON_DO_STRINGIFY(x)
#define RAPIDJSON_DO_STRINGIFY(x) #x #define RAPIDJSON_DO_STRINGIFY(x) #x
// token concatenation
#define RAPIDJSON_JOIN(X, Y) RAPIDJSON_DO_JOIN(X, Y)
#define RAPIDJSON_DO_JOIN(X, Y) RAPIDJSON_DO_JOIN2(X, Y)
#define RAPIDJSON_DO_JOIN2(X, Y) X##Y
//!@endcond //!@endcond
/*! \def RAPIDJSON_MAJOR_VERSION /*! \def RAPIDJSON_MAJOR_VERSION
@ -68,8 +73,8 @@
\brief Version of RapidJSON in "<major>.<minor>.<patch>" string format. \brief Version of RapidJSON in "<major>.<minor>.<patch>" string format.
*/ */
#define RAPIDJSON_MAJOR_VERSION 1 #define RAPIDJSON_MAJOR_VERSION 1
#define RAPIDJSON_MINOR_VERSION 0 #define RAPIDJSON_MINOR_VERSION 1
#define RAPIDJSON_PATCH_VERSION 2 #define RAPIDJSON_PATCH_VERSION 0
#define RAPIDJSON_VERSION_STRING \ #define RAPIDJSON_VERSION_STRING \
RAPIDJSON_STRINGIFY(RAPIDJSON_MAJOR_VERSION.RAPIDJSON_MINOR_VERSION.RAPIDJSON_PATCH_VERSION) RAPIDJSON_STRINGIFY(RAPIDJSON_MAJOR_VERSION.RAPIDJSON_MINOR_VERSION.RAPIDJSON_PATCH_VERSION)
@ -119,6 +124,31 @@
#define RAPIDJSON_NAMESPACE_END } #define RAPIDJSON_NAMESPACE_END }
#endif #endif
///////////////////////////////////////////////////////////////////////////////
// RAPIDJSON_HAS_STDSTRING
#ifndef RAPIDJSON_HAS_STDSTRING
#ifdef RAPIDJSON_DOXYGEN_RUNNING
#define RAPIDJSON_HAS_STDSTRING 1 // force generation of documentation
#else
#define RAPIDJSON_HAS_STDSTRING 0 // no std::string support by default
#endif
/*! \def RAPIDJSON_HAS_STDSTRING
\ingroup RAPIDJSON_CONFIG
\brief Enable RapidJSON support for \c std::string
By defining this preprocessor symbol to \c 1, several convenience functions for using
\ref rapidjson::GenericValue with \c std::string are enabled, especially
for construction and comparison.
\hideinitializer
*/
#endif // !defined(RAPIDJSON_HAS_STDSTRING)
#if RAPIDJSON_HAS_STDSTRING
#include <string>
#endif // RAPIDJSON_HAS_STDSTRING
/////////////////////////////////////////////////////////////////////////////// ///////////////////////////////////////////////////////////////////////////////
// RAPIDJSON_NO_INT64DEFINE // RAPIDJSON_NO_INT64DEFINE
@ -134,7 +164,7 @@
*/ */
#ifndef RAPIDJSON_NO_INT64DEFINE #ifndef RAPIDJSON_NO_INT64DEFINE
//!@cond RAPIDJSON_HIDDEN_FROM_DOXYGEN //!@cond RAPIDJSON_HIDDEN_FROM_DOXYGEN
#ifdef _MSC_VER #if defined(_MSC_VER) && (_MSC_VER < 1800) // Visual Studio 2013
#include "msinttypes/stdint.h" #include "msinttypes/stdint.h"
#include "msinttypes/inttypes.h" #include "msinttypes/inttypes.h"
#else #else
@ -153,9 +183,9 @@
#ifndef RAPIDJSON_FORCEINLINE #ifndef RAPIDJSON_FORCEINLINE
//!@cond RAPIDJSON_HIDDEN_FROM_DOXYGEN //!@cond RAPIDJSON_HIDDEN_FROM_DOXYGEN
#if defined(_MSC_VER) && !defined(NDEBUG) #if defined(_MSC_VER) && defined(NDEBUG)
#define RAPIDJSON_FORCEINLINE __forceinline #define RAPIDJSON_FORCEINLINE __forceinline
#elif defined(__GNUC__) && __GNUC__ >= 4 && !defined(NDEBUG) #elif defined(__GNUC__) && __GNUC__ >= 4 && defined(NDEBUG)
#define RAPIDJSON_FORCEINLINE __attribute__((always_inline)) #define RAPIDJSON_FORCEINLINE __attribute__((always_inline))
#else #else
#define RAPIDJSON_FORCEINLINE #define RAPIDJSON_FORCEINLINE
@ -211,6 +241,8 @@
# define RAPIDJSON_ENDIAN RAPIDJSON_BIGENDIAN # define RAPIDJSON_ENDIAN RAPIDJSON_BIGENDIAN
# elif defined(__i386__) || defined(__alpha__) || defined(__ia64) || defined(__ia64__) || defined(_M_IX86) || defined(_M_IA64) || defined(_M_ALPHA) || defined(__amd64) || defined(__amd64__) || defined(_M_AMD64) || defined(__x86_64) || defined(__x86_64__) || defined(_M_X64) || defined(__bfin__) # elif defined(__i386__) || defined(__alpha__) || defined(__ia64) || defined(__ia64__) || defined(_M_IX86) || defined(_M_IA64) || defined(_M_ALPHA) || defined(__amd64) || defined(__amd64__) || defined(_M_AMD64) || defined(__x86_64) || defined(__x86_64__) || defined(_M_X64) || defined(__bfin__)
# define RAPIDJSON_ENDIAN RAPIDJSON_LITTLEENDIAN # define RAPIDJSON_ENDIAN RAPIDJSON_LITTLEENDIAN
# elif defined(_MSC_VER) && (defined(_M_ARM) || defined(_M_ARM64))
# define RAPIDJSON_ENDIAN RAPIDJSON_LITTLEENDIAN
# elif defined(RAPIDJSON_DOXYGEN_RUNNING) # elif defined(RAPIDJSON_DOXYGEN_RUNNING)
# define RAPIDJSON_ENDIAN # define RAPIDJSON_ENDIAN
# else # else
@ -223,7 +255,7 @@
//! Whether using 64-bit architecture //! Whether using 64-bit architecture
#ifndef RAPIDJSON_64BIT #ifndef RAPIDJSON_64BIT
#if defined(__LP64__) || defined(_WIN64) #if defined(__LP64__) || (defined(__x86_64__) && defined(__ILP32__)) || defined(_WIN64) || defined(__EMSCRIPTEN__)
#define RAPIDJSON_64BIT 1 #define RAPIDJSON_64BIT 1
#else #else
#define RAPIDJSON_64BIT 0 #define RAPIDJSON_64BIT 0
@ -238,13 +270,14 @@
\param x pointer to align \param x pointer to align
Some machines require strict data alignment. Currently the default uses 4 bytes Some machines require strict data alignment. Currently the default uses 4 bytes
alignment. User can customize by defining the RAPIDJSON_ALIGN function macro., alignment on 32-bit platforms and 8 bytes alignment for 64-bit platforms.
User can customize by defining the RAPIDJSON_ALIGN function macro.
*/ */
#ifndef RAPIDJSON_ALIGN #ifndef RAPIDJSON_ALIGN
#if RAPIDJSON_64BIT == 1 #if RAPIDJSON_64BIT == 1
#define RAPIDJSON_ALIGN(x) ((x + 7u) & ~7u) #define RAPIDJSON_ALIGN(x) (((x) + static_cast<uint64_t>(7u)) & ~static_cast<uint64_t>(7u))
#else #else
#define RAPIDJSON_ALIGN(x) ((x + 3u) & ~3u) #define RAPIDJSON_ALIGN(x) (((x) + 3u) & ~3u)
#endif #endif
#endif #endif
@ -262,17 +295,47 @@
#endif #endif
/////////////////////////////////////////////////////////////////////////////// ///////////////////////////////////////////////////////////////////////////////
// RAPIDJSON_SSE2/RAPIDJSON_SSE42/RAPIDJSON_SIMD // RAPIDJSON_48BITPOINTER_OPTIMIZATION
//! Use only lower 48-bit address for some pointers.
/*!
\ingroup RAPIDJSON_CONFIG
This optimization uses the fact that current X86-64 architecture only implement lower 48-bit virtual address.
The higher 16-bit can be used for storing other data.
\c GenericValue uses this optimization to reduce its size form 24 bytes to 16 bytes in 64-bit architecture.
*/
#ifndef RAPIDJSON_48BITPOINTER_OPTIMIZATION
#if defined(__amd64__) || defined(__amd64) || defined(__x86_64__) || defined(__x86_64) || defined(_M_X64) || defined(_M_AMD64)
#define RAPIDJSON_48BITPOINTER_OPTIMIZATION 1
#else
#define RAPIDJSON_48BITPOINTER_OPTIMIZATION 0
#endif
#endif // RAPIDJSON_48BITPOINTER_OPTIMIZATION
#if RAPIDJSON_48BITPOINTER_OPTIMIZATION == 1
#if RAPIDJSON_64BIT != 1
#error RAPIDJSON_48BITPOINTER_OPTIMIZATION can only be set to 1 when RAPIDJSON_64BIT=1
#endif
#define RAPIDJSON_SETPOINTER(type, p, x) (p = reinterpret_cast<type *>((reinterpret_cast<uintptr_t>(p) & static_cast<uintptr_t>(RAPIDJSON_UINT64_C2(0xFFFF0000, 0x00000000))) | reinterpret_cast<uintptr_t>(reinterpret_cast<const void*>(x))))
#define RAPIDJSON_GETPOINTER(type, p) (reinterpret_cast<type *>(reinterpret_cast<uintptr_t>(p) & static_cast<uintptr_t>(RAPIDJSON_UINT64_C2(0x0000FFFF, 0xFFFFFFFF))))
#else
#define RAPIDJSON_SETPOINTER(type, p, x) (p = (x))
#define RAPIDJSON_GETPOINTER(type, p) (p)
#endif
///////////////////////////////////////////////////////////////////////////////
// RAPIDJSON_SSE2/RAPIDJSON_SSE42/RAPIDJSON_NEON/RAPIDJSON_SIMD
/*! \def RAPIDJSON_SIMD /*! \def RAPIDJSON_SIMD
\ingroup RAPIDJSON_CONFIG \ingroup RAPIDJSON_CONFIG
\brief Enable SSE2/SSE4.2 optimization. \brief Enable SSE2/SSE4.2/Neon optimization.
RapidJSON supports optimized implementations for some parsing operations RapidJSON supports optimized implementations for some parsing operations
based on the SSE2 or SSE4.2 SIMD extensions on modern Intel-compatible based on the SSE2, SSE4.2 or NEon SIMD extensions on modern Intel
processors. or ARM compatible processors.
To enable these optimizations, two different symbols can be defined; To enable these optimizations, three different symbols can be defined;
\code \code
// Enable SSE2 optimization. // Enable SSE2 optimization.
#define RAPIDJSON_SSE2 #define RAPIDJSON_SSE2
@ -281,13 +344,17 @@
#define RAPIDJSON_SSE42 #define RAPIDJSON_SSE42
\endcode \endcode
\c RAPIDJSON_SSE42 takes precedence, if both are defined. // Enable ARM Neon optimization.
#define RAPIDJSON_NEON
\endcode
\c RAPIDJSON_SSE42 takes precedence over SSE2, if both are defined.
If any of these symbols is defined, RapidJSON defines the macro If any of these symbols is defined, RapidJSON defines the macro
\c RAPIDJSON_SIMD to indicate the availability of the optimized code. \c RAPIDJSON_SIMD to indicate the availability of the optimized code.
*/ */
#if defined(RAPIDJSON_SSE2) || defined(RAPIDJSON_SSE42) \ #if defined(RAPIDJSON_SSE2) || defined(RAPIDJSON_SSE42) \
|| defined(RAPIDJSON_DOXYGEN_RUNNING) || defined(RAPIDJSON_NEON) || defined(RAPIDJSON_DOXYGEN_RUNNING)
#define RAPIDJSON_SIMD #define RAPIDJSON_SIMD
#endif #endif
@ -347,25 +414,33 @@ RAPIDJSON_NAMESPACE_END
/////////////////////////////////////////////////////////////////////////////// ///////////////////////////////////////////////////////////////////////////////
// RAPIDJSON_STATIC_ASSERT // RAPIDJSON_STATIC_ASSERT
// Adopt from boost // Prefer C++11 static_assert, if available
#ifndef RAPIDJSON_STATIC_ASSERT #ifndef RAPIDJSON_STATIC_ASSERT
#if __cplusplus >= 201103L || ( defined(_MSC_VER) && _MSC_VER >= 1800 )
#define RAPIDJSON_STATIC_ASSERT(x) \
static_assert(x, RAPIDJSON_STRINGIFY(x))
#endif // C++11
#endif // RAPIDJSON_STATIC_ASSERT
// Adopt C++03 implementation from boost
#ifndef RAPIDJSON_STATIC_ASSERT
#ifndef __clang__
//!@cond RAPIDJSON_HIDDEN_FROM_DOXYGEN //!@cond RAPIDJSON_HIDDEN_FROM_DOXYGEN
#endif
RAPIDJSON_NAMESPACE_BEGIN RAPIDJSON_NAMESPACE_BEGIN
template <bool x> struct STATIC_ASSERTION_FAILURE; template <bool x> struct STATIC_ASSERTION_FAILURE;
template <> struct STATIC_ASSERTION_FAILURE<true> { enum { value = 1 }; }; template <> struct STATIC_ASSERTION_FAILURE<true> { enum { value = 1 }; };
template<int x> struct StaticAssertTest {}; template <size_t x> struct StaticAssertTest {};
RAPIDJSON_NAMESPACE_END RAPIDJSON_NAMESPACE_END
#define RAPIDJSON_JOIN(X, Y) RAPIDJSON_DO_JOIN(X, Y)
#define RAPIDJSON_DO_JOIN(X, Y) RAPIDJSON_DO_JOIN2(X, Y)
#define RAPIDJSON_DO_JOIN2(X, Y) X##Y
#if defined(__GNUC__) #if defined(__GNUC__)
#define RAPIDJSON_STATIC_ASSERT_UNUSED_ATTRIBUTE __attribute__((unused)) #define RAPIDJSON_STATIC_ASSERT_UNUSED_ATTRIBUTE __attribute__((unused))
#else #else
#define RAPIDJSON_STATIC_ASSERT_UNUSED_ATTRIBUTE #define RAPIDJSON_STATIC_ASSERT_UNUSED_ATTRIBUTE
#endif #endif
#ifndef __clang__
//!@endcond //!@endcond
#endif
/*! \def RAPIDJSON_STATIC_ASSERT /*! \def RAPIDJSON_STATIC_ASSERT
\brief (Internal) macro to check for conditions at compile-time \brief (Internal) macro to check for conditions at compile-time
@ -376,6 +451,35 @@ RAPIDJSON_NAMESPACE_END
typedef ::RAPIDJSON_NAMESPACE::StaticAssertTest< \ typedef ::RAPIDJSON_NAMESPACE::StaticAssertTest< \
sizeof(::RAPIDJSON_NAMESPACE::STATIC_ASSERTION_FAILURE<bool(x) >)> \ sizeof(::RAPIDJSON_NAMESPACE::STATIC_ASSERTION_FAILURE<bool(x) >)> \
RAPIDJSON_JOIN(StaticAssertTypedef, __LINE__) RAPIDJSON_STATIC_ASSERT_UNUSED_ATTRIBUTE RAPIDJSON_JOIN(StaticAssertTypedef, __LINE__) RAPIDJSON_STATIC_ASSERT_UNUSED_ATTRIBUTE
#endif // RAPIDJSON_STATIC_ASSERT
///////////////////////////////////////////////////////////////////////////////
// RAPIDJSON_LIKELY, RAPIDJSON_UNLIKELY
//! Compiler branching hint for expression with high probability to be true.
/*!
\ingroup RAPIDJSON_CONFIG
\param x Boolean expression likely to be true.
*/
#ifndef RAPIDJSON_LIKELY
#if defined(__GNUC__) || defined(__clang__)
#define RAPIDJSON_LIKELY(x) __builtin_expect(!!(x), 1)
#else
#define RAPIDJSON_LIKELY(x) (x)
#endif
#endif
//! Compiler branching hint for expression with low probability to be true.
/*!
\ingroup RAPIDJSON_CONFIG
\param x Boolean expression unlikely to be true.
*/
#ifndef RAPIDJSON_UNLIKELY
#if defined(__GNUC__) || defined(__clang__)
#define RAPIDJSON_UNLIKELY(x) __builtin_expect(!!(x), 0)
#else
#define RAPIDJSON_UNLIKELY(x) (x)
#endif
#endif #endif
/////////////////////////////////////////////////////////////////////////////// ///////////////////////////////////////////////////////////////////////////////
@ -438,8 +542,12 @@ RAPIDJSON_NAMESPACE_END
#ifndef RAPIDJSON_HAS_CXX11_RVALUE_REFS #ifndef RAPIDJSON_HAS_CXX11_RVALUE_REFS
#if defined(__clang__) #if defined(__clang__)
#define RAPIDJSON_HAS_CXX11_RVALUE_REFS __has_feature(cxx_rvalue_references) && \ #if __has_feature(cxx_rvalue_references) && \
(defined(_LIBCPP_VERSION) || defined(__GLIBCXX__) && __GLIBCXX__ >= 20080306) (defined(_LIBCPP_VERSION) || defined(__GLIBCXX__) && __GLIBCXX__ >= 20080306)
#define RAPIDJSON_HAS_CXX11_RVALUE_REFS 1
#else
#define RAPIDJSON_HAS_CXX11_RVALUE_REFS 0
#endif
#elif (defined(RAPIDJSON_GNUC) && (RAPIDJSON_GNUC >= RAPIDJSON_VERSION_CODE(4,3,0)) && defined(__GXX_EXPERIMENTAL_CXX0X__)) || \ #elif (defined(RAPIDJSON_GNUC) && (RAPIDJSON_GNUC >= RAPIDJSON_VERSION_CODE(4,3,0)) && defined(__GXX_EXPERIMENTAL_CXX0X__)) || \
(defined(_MSC_VER) && _MSC_VER >= 1600) (defined(_MSC_VER) && _MSC_VER >= 1600)
@ -470,6 +578,17 @@ RAPIDJSON_NAMESPACE_END
#define RAPIDJSON_HAS_CXX11_TYPETRAITS 0 #define RAPIDJSON_HAS_CXX11_TYPETRAITS 0
#endif #endif
#ifndef RAPIDJSON_HAS_CXX11_RANGE_FOR
#if defined(__clang__)
#define RAPIDJSON_HAS_CXX11_RANGE_FOR __has_feature(cxx_range_for)
#elif (defined(RAPIDJSON_GNUC) && (RAPIDJSON_GNUC >= RAPIDJSON_VERSION_CODE(4,6,0)) && defined(__GXX_EXPERIMENTAL_CXX0X__)) || \
(defined(_MSC_VER) && _MSC_VER >= 1700)
#define RAPIDJSON_HAS_CXX11_RANGE_FOR 1
#else
#define RAPIDJSON_HAS_CXX11_RANGE_FOR 0
#endif
#endif // RAPIDJSON_HAS_CXX11_RANGE_FOR
//!@endcond //!@endcond
/////////////////////////////////////////////////////////////////////////////// ///////////////////////////////////////////////////////////////////////////////
@ -477,7 +596,7 @@ RAPIDJSON_NAMESPACE_END
#ifndef RAPIDJSON_NEW #ifndef RAPIDJSON_NEW
///! customization point for global \c new ///! customization point for global \c new
#define RAPIDJSON_NEW(x) new x #define RAPIDJSON_NEW(TypeName) new TypeName
#endif #endif
#ifndef RAPIDJSON_DELETE #ifndef RAPIDJSON_DELETE
///! customization point for global \c delete ///! customization point for global \c delete
@ -485,10 +604,7 @@ RAPIDJSON_NAMESPACE_END
#endif #endif
/////////////////////////////////////////////////////////////////////////////// ///////////////////////////////////////////////////////////////////////////////
// Allocators and Encodings // Type
#include "allocators.h"
#include "encodings.h"
/*! \namespace rapidjson /*! \namespace rapidjson
\brief main RapidJSON namespace \brief main RapidJSON namespace
@ -496,148 +612,6 @@ RAPIDJSON_NAMESPACE_END
*/ */
RAPIDJSON_NAMESPACE_BEGIN RAPIDJSON_NAMESPACE_BEGIN
///////////////////////////////////////////////////////////////////////////////
// Stream
/*! \class rapidjson::Stream
\brief Concept for reading and writing characters.
For read-only stream, no need to implement PutBegin(), Put(), Flush() and PutEnd().
For write-only stream, only need to implement Put() and Flush().
\code
concept Stream {
typename Ch; //!< Character type of the stream.
//! Read the current character from stream without moving the read cursor.
Ch Peek() const;
//! Read the current character from stream and moving the read cursor to next character.
Ch Take();
//! Get the current read cursor.
//! \return Number of characters read from start.
size_t Tell();
//! Begin writing operation at the current read pointer.
//! \return The begin writer pointer.
Ch* PutBegin();
//! Write a character.
void Put(Ch c);
//! Flush the buffer.
void Flush();
//! End the writing operation.
//! \param begin The begin write pointer returned by PutBegin().
//! \return Number of characters written.
size_t PutEnd(Ch* begin);
}
\endcode
*/
//! Provides additional information for stream.
/*!
By using traits pattern, this type provides a default configuration for stream.
For custom stream, this type can be specialized for other configuration.
See TEST(Reader, CustomStringStream) in readertest.cpp for example.
*/
template<typename Stream>
struct StreamTraits {
//! Whether to make local copy of stream for optimization during parsing.
/*!
By default, for safety, streams do not use local copy optimization.
Stream that can be copied fast should specialize this, like StreamTraits<StringStream>.
*/
enum { copyOptimization = 0 };
};
//! Put N copies of a character to a stream.
template<typename Stream, typename Ch>
inline void PutN(Stream& stream, Ch c, size_t n) {
for (size_t i = 0; i < n; i++)
stream.Put(c);
}
///////////////////////////////////////////////////////////////////////////////
// StringStream
//! Read-only string stream.
/*! \note implements Stream concept
*/
template <typename Encoding>
struct GenericStringStream {
typedef typename Encoding::Ch Ch;
GenericStringStream(const Ch *src) : src_(src), head_(src) {}
Ch Peek() const { return *src_; }
Ch Take() { return *src_++; }
size_t Tell() const { return static_cast<size_t>(src_ - head_); }
Ch* PutBegin() { RAPIDJSON_ASSERT(false); return 0; }
void Put(Ch) { RAPIDJSON_ASSERT(false); }
void Flush() { RAPIDJSON_ASSERT(false); }
size_t PutEnd(Ch*) { RAPIDJSON_ASSERT(false); return 0; }
const Ch* src_; //!< Current read position.
const Ch* head_; //!< Original head of the string.
};
template <typename Encoding>
struct StreamTraits<GenericStringStream<Encoding> > {
enum { copyOptimization = 1 };
};
//! String stream with UTF8 encoding.
typedef GenericStringStream<UTF8<> > StringStream;
///////////////////////////////////////////////////////////////////////////////
// InsituStringStream
//! A read-write string stream.
/*! This string stream is particularly designed for in-situ parsing.
\note implements Stream concept
*/
template <typename Encoding>
struct GenericInsituStringStream {
typedef typename Encoding::Ch Ch;
GenericInsituStringStream(Ch *src) : src_(src), dst_(0), head_(src) {}
// Read
Ch Peek() { return *src_; }
Ch Take() { return *src_++; }
size_t Tell() { return static_cast<size_t>(src_ - head_); }
// Write
void Put(Ch c) { RAPIDJSON_ASSERT(dst_ != 0); *dst_++ = c; }
Ch* PutBegin() { return dst_ = src_; }
size_t PutEnd(Ch* begin) { return static_cast<size_t>(dst_ - begin); }
void Flush() {}
Ch* Push(size_t count) { Ch* begin = dst_; dst_ += count; return begin; }
void Pop(size_t count) { dst_ -= count; }
Ch* src_;
Ch* dst_;
Ch* head_;
};
template <typename Encoding>
struct StreamTraits<GenericInsituStringStream<Encoding> > {
enum { copyOptimization = 1 };
};
//! Insitu string stream with UTF8 encoding.
typedef GenericInsituStringStream<UTF8<> > InsituStringStream;
///////////////////////////////////////////////////////////////////////////////
// Type
//! Type of JSON value //! Type of JSON value
enum Type { enum Type {
kNullType = 0, //!< null kNullType = 0, //!< null

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@ -0,0 +1,179 @@
// 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.
#include "rapidjson.h"
#ifndef RAPIDJSON_STREAM_H_
#define RAPIDJSON_STREAM_H_
#include "encodings.h"
RAPIDJSON_NAMESPACE_BEGIN
///////////////////////////////////////////////////////////////////////////////
// Stream
/*! \class rapidjson::Stream
\brief Concept for reading and writing characters.
For read-only stream, no need to implement PutBegin(), Put(), Flush() and PutEnd().
For write-only stream, only need to implement Put() and Flush().
\code
concept Stream {
typename Ch; //!< Character type of the stream.
//! Read the current character from stream without moving the read cursor.
Ch Peek() const;
//! Read the current character from stream and moving the read cursor to next character.
Ch Take();
//! Get the current read cursor.
//! \return Number of characters read from start.
size_t Tell();
//! Begin writing operation at the current read pointer.
//! \return The begin writer pointer.
Ch* PutBegin();
//! Write a character.
void Put(Ch c);
//! Flush the buffer.
void Flush();
//! End the writing operation.
//! \param begin The begin write pointer returned by PutBegin().
//! \return Number of characters written.
size_t PutEnd(Ch* begin);
}
\endcode
*/
//! Provides additional information for stream.
/*!
By using traits pattern, this type provides a default configuration for stream.
For custom stream, this type can be specialized for other configuration.
See TEST(Reader, CustomStringStream) in readertest.cpp for example.
*/
template<typename Stream>
struct StreamTraits {
//! Whether to make local copy of stream for optimization during parsing.
/*!
By default, for safety, streams do not use local copy optimization.
Stream that can be copied fast should specialize this, like StreamTraits<StringStream>.
*/
enum { copyOptimization = 0 };
};
//! Reserve n characters for writing to a stream.
template<typename Stream>
inline void PutReserve(Stream& stream, size_t count) {
(void)stream;
(void)count;
}
//! Write character to a stream, presuming buffer is reserved.
template<typename Stream>
inline void PutUnsafe(Stream& stream, typename Stream::Ch c) {
stream.Put(c);
}
//! Put N copies of a character to a stream.
template<typename Stream, typename Ch>
inline void PutN(Stream& stream, Ch c, size_t n) {
PutReserve(stream, n);
for (size_t i = 0; i < n; i++)
PutUnsafe(stream, c);
}
///////////////////////////////////////////////////////////////////////////////
// StringStream
//! Read-only string stream.
/*! \note implements Stream concept
*/
template <typename Encoding>
struct GenericStringStream {
typedef typename Encoding::Ch Ch;
GenericStringStream(const Ch *src) : src_(src), head_(src) {}
Ch Peek() const { return *src_; }
Ch Take() { return *src_++; }
size_t Tell() const { return static_cast<size_t>(src_ - head_); }
Ch* PutBegin() { RAPIDJSON_ASSERT(false); return 0; }
void Put(Ch) { RAPIDJSON_ASSERT(false); }
void Flush() { RAPIDJSON_ASSERT(false); }
size_t PutEnd(Ch*) { RAPIDJSON_ASSERT(false); return 0; }
const Ch* src_; //!< Current read position.
const Ch* head_; //!< Original head of the string.
};
template <typename Encoding>
struct StreamTraits<GenericStringStream<Encoding> > {
enum { copyOptimization = 1 };
};
//! String stream with UTF8 encoding.
typedef GenericStringStream<UTF8<> > StringStream;
///////////////////////////////////////////////////////////////////////////////
// InsituStringStream
//! A read-write string stream.
/*! This string stream is particularly designed for in-situ parsing.
\note implements Stream concept
*/
template <typename Encoding>
struct GenericInsituStringStream {
typedef typename Encoding::Ch Ch;
GenericInsituStringStream(Ch *src) : src_(src), dst_(0), head_(src) {}
// Read
Ch Peek() { return *src_; }
Ch Take() { return *src_++; }
size_t Tell() { return static_cast<size_t>(src_ - head_); }
// Write
void Put(Ch c) { RAPIDJSON_ASSERT(dst_ != 0); *dst_++ = c; }
Ch* PutBegin() { return dst_ = src_; }
size_t PutEnd(Ch* begin) { return static_cast<size_t>(dst_ - begin); }
void Flush() {}
Ch* Push(size_t count) { Ch* begin = dst_; dst_ += count; return begin; }
void Pop(size_t count) { dst_ -= count; }
Ch* src_;
Ch* dst_;
Ch* head_;
};
template <typename Encoding>
struct StreamTraits<GenericInsituStringStream<Encoding> > {
enum { copyOptimization = 1 };
};
//! Insitu string stream with UTF8 encoding.
typedef GenericInsituStringStream<UTF8<> > InsituStringStream;
RAPIDJSON_NAMESPACE_END
#endif // RAPIDJSON_STREAM_H_

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@ -15,7 +15,8 @@
#ifndef RAPIDJSON_STRINGBUFFER_H_ #ifndef RAPIDJSON_STRINGBUFFER_H_
#define RAPIDJSON_STRINGBUFFER_H_ #define RAPIDJSON_STRINGBUFFER_H_
#include "rapidjson.h" #include "stream.h"
#include "internal/stack.h"
#if RAPIDJSON_HAS_CXX11_RVALUE_REFS #if RAPIDJSON_HAS_CXX11_RVALUE_REFS
#include <utility> // std::move #include <utility> // std::move
@ -23,6 +24,11 @@
#include "internal/stack.h" #include "internal/stack.h"
#if defined(__clang__)
RAPIDJSON_DIAG_PUSH
RAPIDJSON_DIAG_OFF(c++98-compat)
#endif
RAPIDJSON_NAMESPACE_BEGIN RAPIDJSON_NAMESPACE_BEGIN
//! Represents an in-memory output stream. //! Represents an in-memory output stream.
@ -48,6 +54,7 @@ public:
#endif #endif
void Put(Ch c) { *stack_.template Push<Ch>() = c; } void Put(Ch c) { *stack_.template Push<Ch>() = c; }
void PutUnsafe(Ch c) { *stack_.template PushUnsafe<Ch>() = c; }
void Flush() {} void Flush() {}
void Clear() { stack_.Clear(); } void Clear() { stack_.Clear(); }
@ -57,7 +64,10 @@ public:
stack_.ShrinkToFit(); stack_.ShrinkToFit();
stack_.template Pop<Ch>(1); stack_.template Pop<Ch>(1);
} }
void Reserve(size_t count) { stack_.template Reserve<Ch>(count); }
Ch* Push(size_t count) { return stack_.template Push<Ch>(count); } Ch* Push(size_t count) { return stack_.template Push<Ch>(count); }
Ch* PushUnsafe(size_t count) { return stack_.template PushUnsafe<Ch>(count); }
void Pop(size_t count) { stack_.template Pop<Ch>(count); } void Pop(size_t count) { stack_.template Pop<Ch>(count); }
const Ch* GetString() const { const Ch* GetString() const {
@ -68,8 +78,12 @@ public:
return stack_.template Bottom<Ch>(); return stack_.template Bottom<Ch>();
} }
//! Get the size of string in bytes in the string buffer.
size_t GetSize() const { return stack_.GetSize(); } size_t GetSize() const { return stack_.GetSize(); }
//! Get the length of string in Ch in the string buffer.
size_t GetLength() const { return stack_.GetSize() / sizeof(Ch); }
static const size_t kDefaultCapacity = 256; static const size_t kDefaultCapacity = 256;
mutable internal::Stack<Allocator> stack_; mutable internal::Stack<Allocator> stack_;
@ -82,6 +96,16 @@ private:
//! String buffer with UTF8 encoding //! String buffer with UTF8 encoding
typedef GenericStringBuffer<UTF8<> > StringBuffer; typedef GenericStringBuffer<UTF8<> > StringBuffer;
template<typename Encoding, typename Allocator>
inline void PutReserve(GenericStringBuffer<Encoding, Allocator>& stream, size_t count) {
stream.Reserve(count);
}
template<typename Encoding, typename Allocator>
inline void PutUnsafe(GenericStringBuffer<Encoding, Allocator>& stream, typename Encoding::Ch c) {
stream.PutUnsafe(c);
}
//! Implement specialized version of PutN() with memset() for better performance. //! Implement specialized version of PutN() with memset() for better performance.
template<> template<>
inline void PutN(GenericStringBuffer<UTF8<> >& stream, char c, size_t n) { inline void PutN(GenericStringBuffer<UTF8<> >& stream, char c, size_t n) {
@ -90,4 +114,8 @@ inline void PutN(GenericStringBuffer<UTF8<> >& stream, char c, size_t n) {
RAPIDJSON_NAMESPACE_END RAPIDJSON_NAMESPACE_END
#if defined(__clang__)
RAPIDJSON_DIAG_POP
#endif
#endif // RAPIDJSON_STRINGBUFFER_H_ #endif // RAPIDJSON_STRINGBUFFER_H_

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@ -15,7 +15,8 @@
#ifndef RAPIDJSON_WRITER_H_ #ifndef RAPIDJSON_WRITER_H_
#define RAPIDJSON_WRITER_H_ #define RAPIDJSON_WRITER_H_
#include "rapidjson.h" #include "stream.h"
#include "internal/meta.h"
#include "internal/stack.h" #include "internal/stack.h"
#include "internal/strfunc.h" #include "internal/strfunc.h"
#include "internal/dtoa.h" #include "internal/dtoa.h"
@ -23,8 +24,16 @@
#include "stringbuffer.h" #include "stringbuffer.h"
#include <new> // placement new #include <new> // placement new
#if RAPIDJSON_HAS_STDSTRING #if defined(RAPIDJSON_SIMD) && defined(_MSC_VER)
#include <string> #include <intrin.h>
#pragma intrinsic(_BitScanForward)
#endif
#ifdef RAPIDJSON_SSE42
#include <nmmintrin.h>
#elif defined(RAPIDJSON_SSE2)
#include <emmintrin.h>
#elif defined(RAPIDJSON_NEON)
#include <arm_neon.h>
#endif #endif
#ifdef _MSC_VER #ifdef _MSC_VER
@ -32,8 +41,36 @@ RAPIDJSON_DIAG_PUSH
RAPIDJSON_DIAG_OFF(4127) // conditional expression is constant RAPIDJSON_DIAG_OFF(4127) // conditional expression is constant
#endif #endif
#ifdef __clang__
RAPIDJSON_DIAG_PUSH
RAPIDJSON_DIAG_OFF(padded)
RAPIDJSON_DIAG_OFF(unreachable-code)
RAPIDJSON_DIAG_OFF(c++98-compat)
#endif
RAPIDJSON_NAMESPACE_BEGIN RAPIDJSON_NAMESPACE_BEGIN
///////////////////////////////////////////////////////////////////////////////
// WriteFlag
/*! \def RAPIDJSON_WRITE_DEFAULT_FLAGS
\ingroup RAPIDJSON_CONFIG
\brief User-defined kWriteDefaultFlags definition.
User can define this as any \c WriteFlag combinations.
*/
#ifndef RAPIDJSON_WRITE_DEFAULT_FLAGS
#define RAPIDJSON_WRITE_DEFAULT_FLAGS kWriteNoFlags
#endif
//! Combination of writeFlags
enum WriteFlag {
kWriteNoFlags = 0, //!< No flags are set.
kWriteValidateEncodingFlag = 1, //!< Validate encoding of JSON strings.
kWriteNanAndInfFlag = 2, //!< Allow writing of Infinity, -Infinity and NaN.
kWriteDefaultFlags = RAPIDJSON_WRITE_DEFAULT_FLAGS //!< Default write flags. Can be customized by defining RAPIDJSON_WRITE_DEFAULT_FLAGS
};
//! JSON writer //! JSON writer
/*! Writer implements the concept Handler. /*! Writer implements the concept Handler.
It generates JSON text by events to an output os. It generates JSON text by events to an output os.
@ -50,11 +87,13 @@ RAPIDJSON_NAMESPACE_BEGIN
\tparam StackAllocator Type of allocator for allocating memory of stack. \tparam StackAllocator Type of allocator for allocating memory of stack.
\note implements Handler concept \note implements Handler concept
*/ */
template<typename OutputStream, typename SourceEncoding = UTF8<>, typename TargetEncoding = UTF8<>, typename StackAllocator = CrtAllocator> template<typename OutputStream, typename SourceEncoding = UTF8<>, typename TargetEncoding = UTF8<>, typename StackAllocator = CrtAllocator, unsigned writeFlags = kWriteDefaultFlags>
class Writer { class Writer {
public: public:
typedef typename SourceEncoding::Ch Ch; typedef typename SourceEncoding::Ch Ch;
static const int kDefaultMaxDecimalPlaces = 324;
//! Constructor //! Constructor
/*! \param os Output stream. /*! \param os Output stream.
\param stackAllocator User supplied allocator. If it is null, it will create a private one. \param stackAllocator User supplied allocator. If it is null, it will create a private one.
@ -62,11 +101,18 @@ public:
*/ */
explicit explicit
Writer(OutputStream& os, StackAllocator* stackAllocator = 0, size_t levelDepth = kDefaultLevelDepth) : Writer(OutputStream& os, StackAllocator* stackAllocator = 0, size_t levelDepth = kDefaultLevelDepth) :
os_(&os), level_stack_(stackAllocator, levelDepth * sizeof(Level)), hasRoot_(false) {} os_(&os), level_stack_(stackAllocator, levelDepth * sizeof(Level)), maxDecimalPlaces_(kDefaultMaxDecimalPlaces), hasRoot_(false) {}
explicit explicit
Writer(StackAllocator* allocator = 0, size_t levelDepth = kDefaultLevelDepth) : Writer(StackAllocator* allocator = 0, size_t levelDepth = kDefaultLevelDepth) :
os_(0), level_stack_(allocator, levelDepth * sizeof(Level)), hasRoot_(false) {} os_(0), level_stack_(allocator, levelDepth * sizeof(Level)), maxDecimalPlaces_(kDefaultMaxDecimalPlaces), hasRoot_(false) {}
#if RAPIDJSON_HAS_CXX11_RVALUE_REFS
Writer(Writer&& rhs) :
os_(rhs.os_), level_stack_(std::move(rhs.level_stack_)), maxDecimalPlaces_(rhs.maxDecimalPlaces_), hasRoot_(rhs.hasRoot_) {
rhs.os_ = 0;
}
#endif
//! Reset the writer with a new stream. //! Reset the writer with a new stream.
/*! /*!
@ -100,29 +146,66 @@ public:
return hasRoot_ && level_stack_.Empty(); return hasRoot_ && level_stack_.Empty();
} }
int GetMaxDecimalPlaces() const {
return maxDecimalPlaces_;
}
//! Sets the maximum number of decimal places for double output.
/*!
This setting truncates the output with specified number of decimal places.
For example,
\code
writer.SetMaxDecimalPlaces(3);
writer.StartArray();
writer.Double(0.12345); // "0.123"
writer.Double(0.0001); // "0.0"
writer.Double(1.234567890123456e30); // "1.234567890123456e30" (do not truncate significand for positive exponent)
writer.Double(1.23e-4); // "0.0" (do truncate significand for negative exponent)
writer.EndArray();
\endcode
The default setting does not truncate any decimal places. You can restore to this setting by calling
\code
writer.SetMaxDecimalPlaces(Writer::kDefaultMaxDecimalPlaces);
\endcode
*/
void SetMaxDecimalPlaces(int maxDecimalPlaces) {
maxDecimalPlaces_ = maxDecimalPlaces;
}
/*!@name Implementation of Handler /*!@name Implementation of Handler
\see Handler \see Handler
*/ */
//@{ //@{
bool Null() { Prefix(kNullType); return WriteNull(); } bool Null() { Prefix(kNullType); return EndValue(WriteNull()); }
bool Bool(bool b) { Prefix(b ? kTrueType : kFalseType); return WriteBool(b); } bool Bool(bool b) { Prefix(b ? kTrueType : kFalseType); return EndValue(WriteBool(b)); }
bool Int(int i) { Prefix(kNumberType); return WriteInt(i); } bool Int(int i) { Prefix(kNumberType); return EndValue(WriteInt(i)); }
bool Uint(unsigned u) { Prefix(kNumberType); return WriteUint(u); } bool Uint(unsigned u) { Prefix(kNumberType); return EndValue(WriteUint(u)); }
bool Int64(int64_t i64) { Prefix(kNumberType); return WriteInt64(i64); } bool Int64(int64_t i64) { Prefix(kNumberType); return EndValue(WriteInt64(i64)); }
bool Uint64(uint64_t u64) { Prefix(kNumberType); return WriteUint64(u64); } bool Uint64(uint64_t u64) { Prefix(kNumberType); return EndValue(WriteUint64(u64)); }
//! Writes the given \c double value to the stream //! Writes the given \c double value to the stream
/*! /*!
\param d The value to be written. \param d The value to be written.
\return Whether it is succeed. \return Whether it is succeed.
*/ */
bool Double(double d) { Prefix(kNumberType); return WriteDouble(d); } bool Double(double d) { Prefix(kNumberType); return EndValue(WriteDouble(d)); }
bool RawNumber(const Ch* str, SizeType length, bool copy = false) {
RAPIDJSON_ASSERT(str != 0);
(void)copy;
Prefix(kNumberType);
return EndValue(WriteString(str, length));
}
bool String(const Ch* str, SizeType length, bool copy = false) { bool String(const Ch* str, SizeType length, bool copy = false) {
RAPIDJSON_ASSERT(str != 0);
(void)copy; (void)copy;
Prefix(kStringType); Prefix(kStringType);
return WriteString(str, length); return EndValue(WriteString(str, length));
} }
#if RAPIDJSON_HAS_STDSTRING #if RAPIDJSON_HAS_STDSTRING
@ -139,15 +222,20 @@ public:
bool Key(const Ch* str, SizeType length, bool copy = false) { return String(str, length, copy); } bool Key(const Ch* str, SizeType length, bool copy = false) { return String(str, length, copy); }
#if RAPIDJSON_HAS_STDSTRING
bool Key(const std::basic_string<Ch>& str)
{
return Key(str.data(), SizeType(str.size()));
}
#endif
bool EndObject(SizeType memberCount = 0) { bool EndObject(SizeType memberCount = 0) {
(void)memberCount; (void)memberCount;
RAPIDJSON_ASSERT(level_stack_.GetSize() >= sizeof(Level)); RAPIDJSON_ASSERT(level_stack_.GetSize() >= sizeof(Level)); // not inside an Object
RAPIDJSON_ASSERT(!level_stack_.template Top<Level>()->inArray); RAPIDJSON_ASSERT(!level_stack_.template Top<Level>()->inArray); // currently inside an Array, not Object
RAPIDJSON_ASSERT(0 == level_stack_.template Top<Level>()->valueCount % 2); // Object has a Key without a Value
level_stack_.template Pop<Level>(1); level_stack_.template Pop<Level>(1);
bool ret = WriteEndObject(); return EndValue(WriteEndObject());
if (level_stack_.Empty()) // end of json text
os_->Flush();
return ret;
} }
bool StartArray() { bool StartArray() {
@ -161,10 +249,7 @@ public:
RAPIDJSON_ASSERT(level_stack_.GetSize() >= sizeof(Level)); RAPIDJSON_ASSERT(level_stack_.GetSize() >= sizeof(Level));
RAPIDJSON_ASSERT(level_stack_.template Top<Level>()->inArray); RAPIDJSON_ASSERT(level_stack_.template Top<Level>()->inArray);
level_stack_.template Pop<Level>(1); level_stack_.template Pop<Level>(1);
bool ret = WriteEndArray(); return EndValue(WriteEndArray());
if (level_stack_.Empty()) // end of json text
os_->Flush();
return ret;
} }
//@} //@}
@ -172,11 +257,33 @@ public:
//@{ //@{
//! Simpler but slower overload. //! Simpler but slower overload.
bool String(const Ch* str) { return String(str, internal::StrLen(str)); } bool String(const Ch* const& str) { return String(str, internal::StrLen(str)); }
bool Key(const Ch* str) { return Key(str, internal::StrLen(str)); } bool Key(const Ch* const& str) { return Key(str, internal::StrLen(str)); }
//@} //@}
//! Write a raw JSON value.
/*!
For user to write a stringified JSON as a value.
\param json A well-formed JSON value. It should not contain null character within [0, length - 1] range.
\param length Length of the json.
\param type Type of the root of json.
*/
bool RawValue(const Ch* json, size_t length, Type type) {
RAPIDJSON_ASSERT(json != 0);
Prefix(type);
return EndValue(WriteRawValue(json, length));
}
//! Flush the output stream.
/*!
Allows the user to flush the output stream immediately.
*/
void Flush() {
os_->Flush();
}
protected: protected:
//! Information for each nested level //! Information for each nested level
struct Level { struct Level {
@ -188,15 +295,18 @@ protected:
static const size_t kDefaultLevelDepth = 32; static const size_t kDefaultLevelDepth = 32;
bool WriteNull() { bool WriteNull() {
os_->Put('n'); os_->Put('u'); os_->Put('l'); os_->Put('l'); return true; PutReserve(*os_, 4);
PutUnsafe(*os_, 'n'); PutUnsafe(*os_, 'u'); PutUnsafe(*os_, 'l'); PutUnsafe(*os_, 'l'); return true;
} }
bool WriteBool(bool b) { bool WriteBool(bool b) {
if (b) { if (b) {
os_->Put('t'); os_->Put('r'); os_->Put('u'); os_->Put('e'); PutReserve(*os_, 4);
PutUnsafe(*os_, 't'); PutUnsafe(*os_, 'r'); PutUnsafe(*os_, 'u'); PutUnsafe(*os_, 'e');
} }
else { else {
os_->Put('f'); os_->Put('a'); os_->Put('l'); os_->Put('s'); os_->Put('e'); PutReserve(*os_, 5);
PutUnsafe(*os_, 'f'); PutUnsafe(*os_, 'a'); PutUnsafe(*os_, 'l'); PutUnsafe(*os_, 's'); PutUnsafe(*os_, 'e');
} }
return true; return true;
} }
@ -204,45 +314,69 @@ protected:
bool WriteInt(int i) { bool WriteInt(int i) {
char buffer[11]; char buffer[11];
const char* end = internal::i32toa(i, buffer); const char* end = internal::i32toa(i, buffer);
PutReserve(*os_, static_cast<size_t>(end - buffer));
for (const char* p = buffer; p != end; ++p) for (const char* p = buffer; p != end; ++p)
os_->Put(*p); PutUnsafe(*os_, static_cast<typename OutputStream::Ch>(*p));
return true; return true;
} }
bool WriteUint(unsigned u) { bool WriteUint(unsigned u) {
char buffer[10]; char buffer[10];
const char* end = internal::u32toa(u, buffer); const char* end = internal::u32toa(u, buffer);
PutReserve(*os_, static_cast<size_t>(end - buffer));
for (const char* p = buffer; p != end; ++p) for (const char* p = buffer; p != end; ++p)
os_->Put(*p); PutUnsafe(*os_, static_cast<typename OutputStream::Ch>(*p));
return true; return true;
} }
bool WriteInt64(int64_t i64) { bool WriteInt64(int64_t i64) {
char buffer[21]; char buffer[21];
const char* end = internal::i64toa(i64, buffer); const char* end = internal::i64toa(i64, buffer);
PutReserve(*os_, static_cast<size_t>(end - buffer));
for (const char* p = buffer; p != end; ++p) for (const char* p = buffer; p != end; ++p)
os_->Put(*p); PutUnsafe(*os_, static_cast<typename OutputStream::Ch>(*p));
return true; return true;
} }
bool WriteUint64(uint64_t u64) { bool WriteUint64(uint64_t u64) {
char buffer[20]; char buffer[20];
char* end = internal::u64toa(u64, buffer); char* end = internal::u64toa(u64, buffer);
PutReserve(*os_, static_cast<size_t>(end - buffer));
for (char* p = buffer; p != end; ++p) for (char* p = buffer; p != end; ++p)
os_->Put(*p); PutUnsafe(*os_, static_cast<typename OutputStream::Ch>(*p));
return true; return true;
} }
bool WriteDouble(double d) { bool WriteDouble(double d) {
if (internal::Double(d).IsNanOrInf()) {
if (!(writeFlags & kWriteNanAndInfFlag))
return false;
if (internal::Double(d).IsNan()) {
PutReserve(*os_, 3);
PutUnsafe(*os_, 'N'); PutUnsafe(*os_, 'a'); PutUnsafe(*os_, 'N');
return true;
}
if (internal::Double(d).Sign()) {
PutReserve(*os_, 9);
PutUnsafe(*os_, '-');
}
else
PutReserve(*os_, 8);
PutUnsafe(*os_, 'I'); PutUnsafe(*os_, 'n'); PutUnsafe(*os_, 'f');
PutUnsafe(*os_, 'i'); PutUnsafe(*os_, 'n'); PutUnsafe(*os_, 'i'); PutUnsafe(*os_, 't'); PutUnsafe(*os_, 'y');
return true;
}
char buffer[25]; char buffer[25];
char* end = internal::dtoa(d, buffer); char* end = internal::dtoa(d, buffer, maxDecimalPlaces_);
PutReserve(*os_, static_cast<size_t>(end - buffer));
for (char* p = buffer; p != end; ++p) for (char* p = buffer; p != end; ++p)
os_->Put(*p); PutUnsafe(*os_, static_cast<typename OutputStream::Ch>(*p));
return true; return true;
} }
bool WriteString(const Ch* str, SizeType length) { bool WriteString(const Ch* str, SizeType length) {
static const char hexDigits[16] = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F' }; static const typename OutputStream::Ch hexDigits[16] = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F' };
static const char escape[256] = { static const char escape[256] = {
#define Z16 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 #define Z16 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
//0 1 2 3 4 5 6 7 8 9 A B C D E F //0 1 2 3 4 5 6 7 8 9 A B C D E F
@ -255,22 +389,27 @@ protected:
#undef Z16 #undef Z16
}; };
os_->Put('\"'); if (TargetEncoding::supportUnicode)
PutReserve(*os_, 2 + length * 6); // "\uxxxx..."
else
PutReserve(*os_, 2 + length * 12); // "\uxxxx\uyyyy..."
PutUnsafe(*os_, '\"');
GenericStringStream<SourceEncoding> is(str); GenericStringStream<SourceEncoding> is(str);
while (is.Tell() < length) { while (ScanWriteUnescapedString(is, length)) {
const Ch c = is.Peek(); const Ch c = is.Peek();
if (!TargetEncoding::supportUnicode && (unsigned)c >= 0x80) { if (!TargetEncoding::supportUnicode && static_cast<unsigned>(c) >= 0x80) {
// Unicode escaping // Unicode escaping
unsigned codepoint; unsigned codepoint;
if (!SourceEncoding::Decode(is, &codepoint)) if (RAPIDJSON_UNLIKELY(!SourceEncoding::Decode(is, &codepoint)))
return false; return false;
os_->Put('\\'); PutUnsafe(*os_, '\\');
os_->Put('u'); PutUnsafe(*os_, 'u');
if (codepoint <= 0xD7FF || (codepoint >= 0xE000 && codepoint <= 0xFFFF)) { if (codepoint <= 0xD7FF || (codepoint >= 0xE000 && codepoint <= 0xFFFF)) {
os_->Put(hexDigits[(codepoint >> 12) & 15]); PutUnsafe(*os_, hexDigits[(codepoint >> 12) & 15]);
os_->Put(hexDigits[(codepoint >> 8) & 15]); PutUnsafe(*os_, hexDigits[(codepoint >> 8) & 15]);
os_->Put(hexDigits[(codepoint >> 4) & 15]); PutUnsafe(*os_, hexDigits[(codepoint >> 4) & 15]);
os_->Put(hexDigits[(codepoint ) & 15]); PutUnsafe(*os_, hexDigits[(codepoint ) & 15]);
} }
else { else {
RAPIDJSON_ASSERT(codepoint >= 0x010000 && codepoint <= 0x10FFFF); RAPIDJSON_ASSERT(codepoint >= 0x010000 && codepoint <= 0x10FFFF);
@ -278,45 +417,59 @@ protected:
unsigned s = codepoint - 0x010000; unsigned s = codepoint - 0x010000;
unsigned lead = (s >> 10) + 0xD800; unsigned lead = (s >> 10) + 0xD800;
unsigned trail = (s & 0x3FF) + 0xDC00; unsigned trail = (s & 0x3FF) + 0xDC00;
os_->Put(hexDigits[(lead >> 12) & 15]); PutUnsafe(*os_, hexDigits[(lead >> 12) & 15]);
os_->Put(hexDigits[(lead >> 8) & 15]); PutUnsafe(*os_, hexDigits[(lead >> 8) & 15]);
os_->Put(hexDigits[(lead >> 4) & 15]); PutUnsafe(*os_, hexDigits[(lead >> 4) & 15]);
os_->Put(hexDigits[(lead ) & 15]); PutUnsafe(*os_, hexDigits[(lead ) & 15]);
os_->Put('\\'); PutUnsafe(*os_, '\\');
os_->Put('u'); PutUnsafe(*os_, 'u');
os_->Put(hexDigits[(trail >> 12) & 15]); PutUnsafe(*os_, hexDigits[(trail >> 12) & 15]);
os_->Put(hexDigits[(trail >> 8) & 15]); PutUnsafe(*os_, hexDigits[(trail >> 8) & 15]);
os_->Put(hexDigits[(trail >> 4) & 15]); PutUnsafe(*os_, hexDigits[(trail >> 4) & 15]);
os_->Put(hexDigits[(trail ) & 15]); PutUnsafe(*os_, hexDigits[(trail ) & 15]);
} }
} }
else if ((sizeof(Ch) == 1 || (unsigned)c < 256) && escape[(unsigned char)c]) { else if ((sizeof(Ch) == 1 || static_cast<unsigned>(c) < 256) && RAPIDJSON_UNLIKELY(escape[static_cast<unsigned char>(c)])) {
is.Take(); is.Take();
os_->Put('\\'); PutUnsafe(*os_, '\\');
os_->Put(escape[(unsigned char)c]); PutUnsafe(*os_, static_cast<typename OutputStream::Ch>(escape[static_cast<unsigned char>(c)]));
if (escape[(unsigned char)c] == 'u') { if (escape[static_cast<unsigned char>(c)] == 'u') {
os_->Put('0'); PutUnsafe(*os_, '0');
os_->Put('0'); PutUnsafe(*os_, '0');
os_->Put(hexDigits[(unsigned char)c >> 4]); PutUnsafe(*os_, hexDigits[static_cast<unsigned char>(c) >> 4]);
os_->Put(hexDigits[(unsigned char)c & 0xF]); PutUnsafe(*os_, hexDigits[static_cast<unsigned char>(c) & 0xF]);
} }
} }
else else if (RAPIDJSON_UNLIKELY(!(writeFlags & kWriteValidateEncodingFlag ?
if (!Transcoder<SourceEncoding, TargetEncoding>::Transcode(is, *os_)) Transcoder<SourceEncoding, TargetEncoding>::Validate(is, *os_) :
Transcoder<SourceEncoding, TargetEncoding>::TranscodeUnsafe(is, *os_))))
return false; return false;
} }
os_->Put('\"'); PutUnsafe(*os_, '\"');
return true; return true;
} }
bool ScanWriteUnescapedString(GenericStringStream<SourceEncoding>& is, size_t length) {
return RAPIDJSON_LIKELY(is.Tell() < length);
}
bool WriteStartObject() { os_->Put('{'); return true; } bool WriteStartObject() { os_->Put('{'); return true; }
bool WriteEndObject() { os_->Put('}'); return true; } bool WriteEndObject() { os_->Put('}'); return true; }
bool WriteStartArray() { os_->Put('['); return true; } bool WriteStartArray() { os_->Put('['); return true; }
bool WriteEndArray() { os_->Put(']'); return true; } bool WriteEndArray() { os_->Put(']'); return true; }
bool WriteRawValue(const Ch* json, size_t length) {
PutReserve(*os_, length);
for (size_t i = 0; i < length; i++) {
RAPIDJSON_ASSERT(json[i] != '\0');
PutUnsafe(*os_, json[i]);
}
return true;
}
void Prefix(Type type) { void Prefix(Type type) {
(void)type; (void)type;
if (level_stack_.GetSize() != 0) { // this value is not at root if (RAPIDJSON_LIKELY(level_stack_.GetSize() != 0)) { // this value is not at root
Level* level = level_stack_.template Top<Level>(); Level* level = level_stack_.template Top<Level>();
if (level->valueCount > 0) { if (level->valueCount > 0) {
if (level->inArray) if (level->inArray)
@ -334,8 +487,16 @@ protected:
} }
} }
// Flush the value if it is the top level one.
bool EndValue(bool ret) {
if (RAPIDJSON_UNLIKELY(level_stack_.Empty())) // end of json text
Flush();
return ret;
}
OutputStream* os_; OutputStream* os_;
internal::Stack<StackAllocator> level_stack_; internal::Stack<StackAllocator> level_stack_;
int maxDecimalPlaces_;
bool hasRoot_; bool hasRoot_;
private: private:
@ -350,7 +511,7 @@ template<>
inline bool Writer<StringBuffer>::WriteInt(int i) { inline bool Writer<StringBuffer>::WriteInt(int i) {
char *buffer = os_->Push(11); char *buffer = os_->Push(11);
const char* end = internal::i32toa(i, buffer); const char* end = internal::i32toa(i, buffer);
os_->Pop(11 - (end - buffer)); os_->Pop(static_cast<size_t>(11 - (end - buffer)));
return true; return true;
} }
@ -358,7 +519,7 @@ template<>
inline bool Writer<StringBuffer>::WriteUint(unsigned u) { inline bool Writer<StringBuffer>::WriteUint(unsigned u) {
char *buffer = os_->Push(10); char *buffer = os_->Push(10);
const char* end = internal::u32toa(u, buffer); const char* end = internal::u32toa(u, buffer);
os_->Pop(10 - (end - buffer)); os_->Pop(static_cast<size_t>(10 - (end - buffer)));
return true; return true;
} }
@ -366,7 +527,7 @@ template<>
inline bool Writer<StringBuffer>::WriteInt64(int64_t i64) { inline bool Writer<StringBuffer>::WriteInt64(int64_t i64) {
char *buffer = os_->Push(21); char *buffer = os_->Push(21);
const char* end = internal::i64toa(i64, buffer); const char* end = internal::i64toa(i64, buffer);
os_->Pop(21 - (end - buffer)); os_->Pop(static_cast<size_t>(21 - (end - buffer)));
return true; return true;
} }
@ -374,22 +535,177 @@ template<>
inline bool Writer<StringBuffer>::WriteUint64(uint64_t u) { inline bool Writer<StringBuffer>::WriteUint64(uint64_t u) {
char *buffer = os_->Push(20); char *buffer = os_->Push(20);
const char* end = internal::u64toa(u, buffer); const char* end = internal::u64toa(u, buffer);
os_->Pop(20 - (end - buffer)); os_->Pop(static_cast<size_t>(20 - (end - buffer)));
return true; return true;
} }
template<> template<>
inline bool Writer<StringBuffer>::WriteDouble(double d) { inline bool Writer<StringBuffer>::WriteDouble(double d) {
if (internal::Double(d).IsNanOrInf()) {
// Note: This code path can only be reached if (RAPIDJSON_WRITE_DEFAULT_FLAGS & kWriteNanAndInfFlag).
if (!(kWriteDefaultFlags & kWriteNanAndInfFlag))
return false;
if (internal::Double(d).IsNan()) {
PutReserve(*os_, 3);
PutUnsafe(*os_, 'N'); PutUnsafe(*os_, 'a'); PutUnsafe(*os_, 'N');
return true;
}
if (internal::Double(d).Sign()) {
PutReserve(*os_, 9);
PutUnsafe(*os_, '-');
}
else
PutReserve(*os_, 8);
PutUnsafe(*os_, 'I'); PutUnsafe(*os_, 'n'); PutUnsafe(*os_, 'f');
PutUnsafe(*os_, 'i'); PutUnsafe(*os_, 'n'); PutUnsafe(*os_, 'i'); PutUnsafe(*os_, 't'); PutUnsafe(*os_, 'y');
return true;
}
char *buffer = os_->Push(25); char *buffer = os_->Push(25);
char* end = internal::dtoa(d, buffer); char* end = internal::dtoa(d, buffer, maxDecimalPlaces_);
os_->Pop(25 - (end - buffer)); os_->Pop(static_cast<size_t>(25 - (end - buffer)));
return true; return true;
} }
#if defined(RAPIDJSON_SSE2) || defined(RAPIDJSON_SSE42)
template<>
inline bool Writer<StringBuffer>::ScanWriteUnescapedString(StringStream& is, size_t length) {
if (length < 16)
return RAPIDJSON_LIKELY(is.Tell() < length);
if (!RAPIDJSON_LIKELY(is.Tell() < length))
return false;
const char* p = is.src_;
const char* end = is.head_ + length;
const char* nextAligned = reinterpret_cast<const char*>((reinterpret_cast<size_t>(p) + 15) & static_cast<size_t>(~15));
const char* endAligned = reinterpret_cast<const char*>(reinterpret_cast<size_t>(end) & static_cast<size_t>(~15));
if (nextAligned > end)
return true;
while (p != nextAligned)
if (*p < 0x20 || *p == '\"' || *p == '\\') {
is.src_ = p;
return RAPIDJSON_LIKELY(is.Tell() < length);
}
else
os_->PutUnsafe(*p++);
// The rest of string using SIMD
static const char dquote[16] = { '\"', '\"', '\"', '\"', '\"', '\"', '\"', '\"', '\"', '\"', '\"', '\"', '\"', '\"', '\"', '\"' };
static const char bslash[16] = { '\\', '\\', '\\', '\\', '\\', '\\', '\\', '\\', '\\', '\\', '\\', '\\', '\\', '\\', '\\', '\\' };
static const char space[16] = { 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F };
const __m128i dq = _mm_loadu_si128(reinterpret_cast<const __m128i *>(&dquote[0]));
const __m128i bs = _mm_loadu_si128(reinterpret_cast<const __m128i *>(&bslash[0]));
const __m128i sp = _mm_loadu_si128(reinterpret_cast<const __m128i *>(&space[0]));
for (; p != endAligned; p += 16) {
const __m128i s = _mm_load_si128(reinterpret_cast<const __m128i *>(p));
const __m128i t1 = _mm_cmpeq_epi8(s, dq);
const __m128i t2 = _mm_cmpeq_epi8(s, bs);
const __m128i t3 = _mm_cmpeq_epi8(_mm_max_epu8(s, sp), sp); // s < 0x20 <=> max(s, 0x1F) == 0x1F
const __m128i x = _mm_or_si128(_mm_or_si128(t1, t2), t3);
unsigned short r = static_cast<unsigned short>(_mm_movemask_epi8(x));
if (RAPIDJSON_UNLIKELY(r != 0)) { // some of characters is escaped
SizeType len;
#ifdef _MSC_VER // Find the index of first escaped
unsigned long offset;
_BitScanForward(&offset, r);
len = offset;
#else
len = static_cast<SizeType>(__builtin_ffs(r) - 1);
#endif
char* q = reinterpret_cast<char*>(os_->PushUnsafe(len));
for (size_t i = 0; i < len; i++)
q[i] = p[i];
p += len;
break;
}
_mm_storeu_si128(reinterpret_cast<__m128i *>(os_->PushUnsafe(16)), s);
}
is.src_ = p;
return RAPIDJSON_LIKELY(is.Tell() < length);
}
#elif defined(RAPIDJSON_NEON)
template<>
inline bool Writer<StringBuffer>::ScanWriteUnescapedString(StringStream& is, size_t length) {
if (length < 16)
return RAPIDJSON_LIKELY(is.Tell() < length);
if (!RAPIDJSON_LIKELY(is.Tell() < length))
return false;
const char* p = is.src_;
const char* end = is.head_ + length;
const char* nextAligned = reinterpret_cast<const char*>((reinterpret_cast<size_t>(p) + 15) & static_cast<size_t>(~15));
const char* endAligned = reinterpret_cast<const char*>(reinterpret_cast<size_t>(end) & static_cast<size_t>(~15));
if (nextAligned > end)
return true;
while (p != nextAligned)
if (*p < 0x20 || *p == '\"' || *p == '\\') {
is.src_ = p;
return RAPIDJSON_LIKELY(is.Tell() < length);
}
else
os_->PutUnsafe(*p++);
// The rest of string using SIMD
const uint8x16_t s0 = vmovq_n_u8('"');
const uint8x16_t s1 = vmovq_n_u8('\\');
const uint8x16_t s2 = vmovq_n_u8('\b');
const uint8x16_t s3 = vmovq_n_u8(32);
for (; p != endAligned; p += 16) {
const uint8x16_t s = vld1q_u8(reinterpret_cast<const uint8_t *>(p));
uint8x16_t x = vceqq_u8(s, s0);
x = vorrq_u8(x, vceqq_u8(s, s1));
x = vorrq_u8(x, vceqq_u8(s, s2));
x = vorrq_u8(x, vcltq_u8(s, s3));
x = vrev64q_u8(x); // Rev in 64
uint64_t low = vgetq_lane_u64(reinterpret_cast<uint64x2_t>(x), 0); // extract
uint64_t high = vgetq_lane_u64(reinterpret_cast<uint64x2_t>(x), 1); // extract
SizeType len = 0;
bool escaped = false;
if (low == 0) {
if (high != 0) {
unsigned lz = (unsigned)__builtin_clzll(high);
len = 8 + (lz >> 3);
escaped = true;
}
} else {
unsigned lz = (unsigned)__builtin_clzll(low);
len = lz >> 3;
escaped = true;
}
if (RAPIDJSON_UNLIKELY(escaped)) { // some of characters is escaped
char* q = reinterpret_cast<char*>(os_->PushUnsafe(len));
for (size_t i = 0; i < len; i++)
q[i] = p[i];
p += len;
break;
}
vst1q_u8(reinterpret_cast<uint8_t *>(os_->PushUnsafe(16)), s);
}
is.src_ = p;
return RAPIDJSON_LIKELY(is.Tell() < length);
}
#endif // RAPIDJSON_NEON
RAPIDJSON_NAMESPACE_END RAPIDJSON_NAMESPACE_END
#ifdef _MSC_VER #ifdef _MSC_VER
RAPIDJSON_DIAG_POP RAPIDJSON_DIAG_POP
#endif #endif
#ifdef __clang__
RAPIDJSON_DIAG_POP
#endif
#endif // RAPIDJSON_RAPIDJSON_H_ #endif // RAPIDJSON_RAPIDJSON_H_

View File

@ -3,7 +3,7 @@ Tencent is pleased to support the open source community by making RapidJSON avai
Copyright (C) 2015 THL A29 Limited, a Tencent company, and Milo Yip. All rights reserved. Copyright (C) 2015 THL A29 Limited, a Tencent company, and Milo Yip. All rights reserved.
If you have downloaded a copy of the RapidJSON binary from Tencent, please note that the RapidJSON binary is licensed under the MIT License. If you have downloaded a copy of the RapidJSON binary from Tencent, please note that the RapidJSON binary is licensed under the MIT License.
If you have downloaded a copy of the RapidJSON source code from Tencent, please note that RapidJSON source code is licensed under the MIT License, except for the third-party components listed below which are subject to different license terms. Your integration of RapidJSON into your own projects may require compliance with the MIT License, as well as the other licenses applicable to the third-party components included within RapidJSON. If you have downloaded a copy of the RapidJSON source code from Tencent, please note that RapidJSON source code is licensed under the MIT License, except for the third-party components listed below which are subject to different license terms. Your integration of RapidJSON into your own projects may require compliance with the MIT License, as well as the other licenses applicable to the third-party components included within RapidJSON. To avoid the problematic JSON license in your own projects, it's sufficient to exclude the bin/jsonchecker/ directory, as it's the only code under the JSON license.
A copy of the MIT License is included in this file. A copy of the MIT License is included in this file.
Other dependencies and licenses: Other dependencies and licenses:

View File

@ -1,6 +1,6 @@
![](doc/logo/rapidjson.png) ![RapidJSON logo](doc/logo/rapidjson.png)
![](https://img.shields.io/badge/release-v1.0.2-blue.png) ![Release version](https://img.shields.io/badge/release-v1.1.0-blue.svg)
## A fast JSON parser/generator for C++ with both SAX/DOM style API ## A fast JSON parser/generator for C++ with both SAX/DOM style API
@ -8,10 +8,10 @@ Tencent is pleased to support the open source community by making RapidJSON avai
Copyright (C) 2015 THL A29 Limited, a Tencent company, and Milo Yip. All rights reserved. Copyright (C) 2015 THL A29 Limited, a Tencent company, and Milo Yip. All rights reserved.
* [RapidJSON GitHub](https://github.com/miloyip/rapidjson/) * [RapidJSON GitHub](https://github.com/Tencent/rapidjson/)
* RapidJSON Documentation * RapidJSON Documentation
* [English](http://miloyip.github.io/rapidjson/) * [English](http://rapidjson.org/)
* [简体中文](http://miloyip.github.io/rapidjson/zh-cn/) * [简体中文](http://rapidjson.org/zh-cn/)
* [GitBook](https://www.gitbook.com/book/miloyip/rapidjson/) with downloadable PDF/EPUB/MOBI, without API reference. * [GitBook](https://www.gitbook.com/book/miloyip/rapidjson/) with downloadable PDF/EPUB/MOBI, without API reference.
## Build status ## Build status
@ -20,33 +20,43 @@ Copyright (C) 2015 THL A29 Limited, a Tencent company, and Milo Yip. All rights
| :---------------: | :-----------------: | :-------------------: | | :---------------: | :-----------------: | :-------------------: |
| ![lin-badge] | ![win-badge] | ![cov-badge] | | ![lin-badge] | ![win-badge] | ![cov-badge] |
[lin-badge]: https://travis-ci.org/miloyip/rapidjson.png?branch=master "Travis build status" [lin-badge]: https://travis-ci.org/Tencent/rapidjson.svg?branch=master "Travis build status"
[lin-link]: https://travis-ci.org/miloyip/rapidjson "Travis build status" [lin-link]: https://travis-ci.org/Tencent/rapidjson "Travis build status"
[win-badge]: https://ci.appveyor.com/api/projects/status/u658dcuwxo14a8m9/branch/master "AppVeyor build status" [win-badge]: https://ci.appveyor.com/api/projects/status/l6qulgqahcayidrf/branch/master?svg=true "AppVeyor build status"
[win-link]: https://ci.appveyor.com/project/miloyip/rapidjson/branch/master "AppVeyor build status" [win-link]: https://ci.appveyor.com/project/miloyip/rapidjson-0fdqj/branch/master "AppVeyor build status"
[cov-badge]: https://coveralls.io/repos/miloyip/rapidjson/badge.png?branch=master [cov-badge]: https://coveralls.io/repos/Tencent/rapidjson/badge.svg?branch=master "Coveralls coverage"
[cov-link]: https://coveralls.io/r/miloyip/rapidjson?branch=master [cov-link]: https://coveralls.io/r/Tencent/rapidjson?branch=master "Coveralls coverage"
## Introduction ## Introduction
RapidJSON is a JSON parser and generator for C++. It was inspired by [RapidXml](http://rapidxml.sourceforge.net/). RapidJSON is a JSON parser and generator for C++. It was inspired by [RapidXml](http://rapidxml.sourceforge.net/).
* RapidJSON is small but complete. It supports both SAX and DOM style API. The SAX parser is only a half thousand lines of code. * RapidJSON is **small** but **complete**. It supports both SAX and DOM style API. The SAX parser is only a half thousand lines of code.
* RapidJSON is fast. Its performance can be comparable to `strlen()`. It also optionally supports SSE2/SSE4.2 for acceleration. * RapidJSON is **fast**. Its performance can be comparable to `strlen()`. It also optionally supports SSE2/SSE4.2 for acceleration.
* RapidJSON is self-contained. It does not depend on external libraries such as BOOST. It even does not depend on STL. * RapidJSON is **self-contained** and **header-only**. It does not depend on external libraries such as BOOST. It even does not depend on STL.
* RapidJSON is memory friendly. Each JSON value occupies exactly 16/20 bytes for most 32/64-bit machines (excluding text string). By default it uses a fast memory allocator, and the parser allocates memory compactly during parsing. * RapidJSON is **memory-friendly**. Each JSON value occupies exactly 16 bytes for most 32/64-bit machines (excluding text string). By default it uses a fast memory allocator, and the parser allocates memory compactly during parsing.
* RapidJSON is Unicode friendly. It supports UTF-8, UTF-16, UTF-32 (LE & BE), and their detection, validation and transcoding internally. For example, you can read a UTF-8 file and let RapidJSON transcode the JSON strings into UTF-16 in the DOM. It also supports surrogates and "\u0000" (null character). * RapidJSON is **Unicode-friendly**. It supports UTF-8, UTF-16, UTF-32 (LE & BE), and their detection, validation and transcoding internally. For example, you can read a UTF-8 file and let RapidJSON transcode the JSON strings into UTF-16 in the DOM. It also supports surrogates and "\u0000" (null character).
More features can be read [here](doc/features.md). More features can be read [here](doc/features.md).
JSON(JavaScript Object Notation) is a light-weight data exchange format. RapidJSON should be in fully compliance with RFC7159/ECMA-404. More information about JSON can be obtained at JSON(JavaScript Object Notation) is a light-weight data exchange format. RapidJSON should be in fully compliance with RFC7159/ECMA-404, with optional support of relaxed syntax. More information about JSON can be obtained at
* [Introducing JSON](http://json.org/) * [Introducing JSON](http://json.org/)
* [RFC7159: The JavaScript Object Notation (JSON) Data Interchange Format](http://www.ietf.org/rfc/rfc7159.txt) * [RFC7159: The JavaScript Object Notation (JSON) Data Interchange Format](https://tools.ietf.org/html/rfc7159)
* [Standard ECMA-404: The JSON Data Interchange Format](http://www.ecma-international.org/publications/standards/Ecma-404.htm) * [Standard ECMA-404: The JSON Data Interchange Format](https://www.ecma-international.org/publications/standards/Ecma-404.htm)
## Highlights in v1.1 (2016-8-25)
* Added [JSON Pointer](doc/pointer.md)
* Added [JSON Schema](doc/schema.md)
* Added [relaxed JSON syntax](doc/dom.md) (comment, trailing comma, NaN/Infinity)
* Iterating array/object with [C++11 Range-based for loop](doc/tutorial.md)
* Reduce memory overhead of each `Value` from 24 bytes to 16 bytes in x86-64 architecture.
For other changes please refer to [change log](CHANGELOG.md).
## Compatibility ## Compatibility
@ -63,9 +73,9 @@ Users can build and run the unit tests on their platform/compiler.
RapidJSON is a header-only C++ library. Just copy the `include/rapidjson` folder to system or project's include path. RapidJSON is a header-only C++ library. Just copy the `include/rapidjson` folder to system or project's include path.
RapidJSON uses following software as its dependencies: RapidJSON uses following software as its dependencies:
* [CMake](http://www.cmake.org) as a general build tool * [CMake](https://cmake.org/) as a general build tool
* (optional)[Doxygen](http://www.doxygen.org) to build documentation * (optional) [Doxygen](http://www.doxygen.org) to build documentation
* (optional)[googletest](https://code.google.com/p/googletest/) for unit and performance testing * (optional) [googletest](https://github.com/google/googletest) for unit and performance testing
To generate user documentation and run tests please proceed with the steps below: To generate user documentation and run tests please proceed with the steps below:
@ -74,7 +84,7 @@ To generate user documentation and run tests please proceed with the steps below
3. Change to `build` directory and run `cmake ..` command to configure your build. Windows users can do the same with cmake-gui application. 3. Change to `build` directory and run `cmake ..` command to configure your build. Windows users can do the same with cmake-gui application.
4. On Windows, build the solution found in the build directory. On Linux, run `make` from the build directory. 4. On Windows, build the solution found in the build directory. On Linux, run `make` from the build directory.
On successfull build you will find compiled test and example binaries in `bin` On successful build you will find compiled test and example binaries in `bin`
directory. The generated documentation will be available in `doc/html` directory. The generated documentation will be available in `doc/html`
directory of the build tree. To run tests after finished build please run `make directory of the build tree. To run tests after finished build please run `make
test` or `ctest` from your build tree. You can get detailed output using `ctest test` or `ctest` from your build tree. You can get detailed output using `ctest
@ -126,4 +136,25 @@ The following diagram shows the process.
![simpledom](doc/diagram/simpledom.png) ![simpledom](doc/diagram/simpledom.png)
More [examples](https://github.com/miloyip/rapidjson/tree/master/example) are available. More [examples](https://github.com/Tencent/rapidjson/tree/master/example) are available:
* DOM API
* [tutorial](https://github.com/Tencent/rapidjson/blob/master/example/tutorial/tutorial.cpp): Basic usage of DOM API.
* SAX API
* [simplereader](https://github.com/Tencent/rapidjson/blob/master/example/simplereader/simplereader.cpp): Dumps all SAX events while parsing a JSON by `Reader`.
* [condense](https://github.com/Tencent/rapidjson/blob/master/example/condense/condense.cpp): A command line tool to rewrite a JSON, with all whitespaces removed.
* [pretty](https://github.com/Tencent/rapidjson/blob/master/example/pretty/pretty.cpp): A command line tool to rewrite a JSON with indents and newlines by `PrettyWriter`.
* [capitalize](https://github.com/Tencent/rapidjson/blob/master/example/capitalize/capitalize.cpp): A command line tool to capitalize strings in JSON.
* [messagereader](https://github.com/Tencent/rapidjson/blob/master/example/messagereader/messagereader.cpp): Parse a JSON message with SAX API.
* [serialize](https://github.com/Tencent/rapidjson/blob/master/example/serialize/serialize.cpp): Serialize a C++ object into JSON with SAX API.
* [jsonx](https://github.com/Tencent/rapidjson/blob/master/example/jsonx/jsonx.cpp): Implements a `JsonxWriter` which stringify SAX events into [JSONx](https://www-01.ibm.com/support/knowledgecenter/SS9H2Y_7.1.0/com.ibm.dp.doc/json_jsonx.html) (a kind of XML) format. The example is a command line tool which converts input JSON into JSONx format.
* Schema
* [schemavalidator](https://github.com/Tencent/rapidjson/blob/master/example/schemavalidator/schemavalidator.cpp) : A command line tool to validate a JSON with a JSON schema.
* Advanced
* [prettyauto](https://github.com/Tencent/rapidjson/blob/master/example/prettyauto/prettyauto.cpp): A modified version of [pretty](https://github.com/Tencent/rapidjson/blob/master/example/pretty/pretty.cpp) to automatically handle JSON with any UTF encodings.
* [parsebyparts](https://github.com/Tencent/rapidjson/blob/master/example/parsebyparts/parsebyparts.cpp): Implements an `AsyncDocumentParser` which can parse JSON in parts, using C++11 thread.
* [filterkey](https://github.com/Tencent/rapidjson/blob/master/example/filterkey/filterkey.cpp): A command line tool to remove all values with user-specified key.
* [filterkeydom](https://github.com/Tencent/rapidjson/blob/master/example/filterkeydom/filterkeydom.cpp): Same tool as above, but it demonstrates how to use a generator to populate a `Document`.