diff options
Diffstat (limited to 'external/rapidjson/prettywriter.h')
-rw-r--r-- | external/rapidjson/prettywriter.h | 468 |
1 files changed, 261 insertions, 207 deletions
diff --git a/external/rapidjson/prettywriter.h b/external/rapidjson/prettywriter.h index adfff4fd5..c6f0216e9 100644 --- a/external/rapidjson/prettywriter.h +++ b/external/rapidjson/prettywriter.h @@ -1,207 +1,261 @@ -// 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_PRETTYWRITER_H_
-#define RAPIDJSON_PRETTYWRITER_H_
-
-#include "writer.h"
-
-#ifdef __GNUC__
-RAPIDJSON_DIAG_PUSH
-RAPIDJSON_DIAG_OFF(effc++)
-#endif
-
-RAPIDJSON_NAMESPACE_BEGIN
-
-//! Writer with indentation and spacing.
-/*!
- \tparam OutputStream Type of ouptut os.
- \tparam SourceEncoding Encoding of source string.
- \tparam TargetEncoding Encoding of output stream.
- \tparam StackAllocator Type of allocator for allocating memory of stack.
-*/
-template<typename OutputStream, typename SourceEncoding = UTF8<>, typename TargetEncoding = UTF8<>, typename StackAllocator = CrtAllocator>
-class PrettyWriter : public Writer<OutputStream, SourceEncoding, TargetEncoding, StackAllocator> {
-public:
- typedef Writer<OutputStream, SourceEncoding, TargetEncoding, StackAllocator> Base;
- typedef typename Base::Ch Ch;
-
- //! Constructor
- /*! \param os Output stream.
- \param allocator User supplied allocator. If it is null, it will create a private one.
- \param levelDepth Initial capacity of stack.
- */
- PrettyWriter(OutputStream& os, StackAllocator* allocator = 0, size_t levelDepth = Base::kDefaultLevelDepth) :
- Base(os, allocator, levelDepth), indentChar_(' '), indentCharCount_(4) {}
-
- //! Set custom indentation.
- /*! \param indentChar Character for indentation. Must be whitespace character (' ', '\\t', '\\n', '\\r').
- \param indentCharCount Number of indent characters for each indentation level.
- \note The default indentation is 4 spaces.
- */
- PrettyWriter& SetIndent(Ch indentChar, unsigned indentCharCount) {
- RAPIDJSON_ASSERT(indentChar == ' ' || indentChar == '\t' || indentChar == '\n' || indentChar == '\r');
- indentChar_ = indentChar;
- indentCharCount_ = indentCharCount;
- return *this;
- }
-
- /*! @name Implementation of Handler
- \see Handler
- */
- //@{
-
- bool Null() { PrettyPrefix(kNullType); return Base::WriteNull(); }
- bool Bool(bool b) { PrettyPrefix(b ? kTrueType : kFalseType); return Base::WriteBool(b); }
- bool Int(int i) { PrettyPrefix(kNumberType); return Base::WriteInt(i); }
- bool Uint(unsigned u) { PrettyPrefix(kNumberType); return Base::WriteUint(u); }
- bool Int64(int64_t i64) { PrettyPrefix(kNumberType); return Base::WriteInt64(i64); }
- bool Uint64(uint64_t u64) { PrettyPrefix(kNumberType); return Base::WriteUint64(u64); }
- bool Double(double d) { PrettyPrefix(kNumberType); return Base::WriteDouble(d); }
-
- bool String(const Ch* str, SizeType length, bool copy = false) {
- (void)copy;
- PrettyPrefix(kStringType);
- return Base::WriteString(str, length);
- }
-
-#if RAPIDJSON_HAS_STDSTRING
- bool String(const std::basic_string<Ch>& str) {
- return String(str.data(), SizeType(str.size()));
- }
-#endif
-
- bool StartObject() {
- PrettyPrefix(kObjectType);
- new (Base::level_stack_.template Push<typename Base::Level>()) typename Base::Level(false);
- return Base::WriteStartObject();
- }
-
- bool Key(const Ch* str, SizeType length, bool copy = false) { return String(str, length, copy); }
-
- bool EndObject(SizeType memberCount = 0) {
- (void)memberCount;
- RAPIDJSON_ASSERT(Base::level_stack_.GetSize() >= sizeof(typename Base::Level));
- RAPIDJSON_ASSERT(!Base::level_stack_.template Top<typename Base::Level>()->inArray);
- bool empty = Base::level_stack_.template Pop<typename Base::Level>(1)->valueCount == 0;
-
- if (!empty) {
- Base::os_->Put('\n');
- WriteIndent();
- }
- bool ret = Base::WriteEndObject();
- (void)ret;
- RAPIDJSON_ASSERT(ret == true);
- if (Base::level_stack_.Empty()) // end of json text
- Base::os_->Flush();
- return true;
- }
-
- bool StartArray() {
- PrettyPrefix(kArrayType);
- new (Base::level_stack_.template Push<typename Base::Level>()) typename Base::Level(true);
- return Base::WriteStartArray();
- }
-
- bool EndArray(SizeType memberCount = 0) {
- (void)memberCount;
- RAPIDJSON_ASSERT(Base::level_stack_.GetSize() >= sizeof(typename Base::Level));
- RAPIDJSON_ASSERT(Base::level_stack_.template Top<typename Base::Level>()->inArray);
- bool empty = Base::level_stack_.template Pop<typename Base::Level>(1)->valueCount == 0;
-
- if (!empty) {
- Base::os_->Put('\n');
- WriteIndent();
- }
- bool ret = Base::WriteEndArray();
- (void)ret;
- RAPIDJSON_ASSERT(ret == true);
- if (Base::level_stack_.Empty()) // end of json text
- Base::os_->Flush();
- return true;
- }
-
- //@}
-
- /*! @name Convenience extensions */
- //@{
-
- //! Simpler but slower overload.
- bool String(const Ch* str) { return String(str, internal::StrLen(str)); }
- bool Key(const Ch* str) { return Key(str, internal::StrLen(str)); }
-
- //@}
-protected:
- void PrettyPrefix(Type type) {
- (void)type;
- if (Base::level_stack_.GetSize() != 0) { // this value is not at root
- typename Base::Level* level = Base::level_stack_.template Top<typename Base::Level>();
-
- if (level->inArray) {
- if (level->valueCount > 0) {
- Base::os_->Put(','); // add comma if it is not the first element in array
- Base::os_->Put('\n');
- }
- else
- Base::os_->Put('\n');
- WriteIndent();
- }
- else { // in object
- if (level->valueCount > 0) {
- if (level->valueCount % 2 == 0) {
- Base::os_->Put(',');
- Base::os_->Put('\n');
- }
- else {
- Base::os_->Put(':');
- Base::os_->Put(' ');
- }
- }
- else
- Base::os_->Put('\n');
-
- if (level->valueCount % 2 == 0)
- WriteIndent();
- }
- if (!level->inArray && level->valueCount % 2 == 0)
- RAPIDJSON_ASSERT(type == kStringType); // if it's in object, then even number should be a name
- level->valueCount++;
- }
- else {
- RAPIDJSON_ASSERT(!Base::hasRoot_); // Should only has one and only one root.
- Base::hasRoot_ = true;
- }
- }
-
- void WriteIndent() {
- size_t count = (Base::level_stack_.GetSize() / sizeof(typename Base::Level)) * indentCharCount_;
- PutN(*Base::os_, static_cast<typename TargetEncoding::Ch>(indentChar_), count);
- }
-
- Ch indentChar_;
- unsigned indentCharCount_;
-
-private:
- // Prohibit copy constructor & assignment operator.
- PrettyWriter(const PrettyWriter&);
- PrettyWriter& operator=(const PrettyWriter&);
-};
-
-RAPIDJSON_NAMESPACE_END
-
-#ifdef __GNUC__
-RAPIDJSON_DIAG_POP
-#endif
-
-#endif // RAPIDJSON_RAPIDJSON_H_
+// 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_PRETTYWRITER_H_ +#define RAPIDJSON_PRETTYWRITER_H_ + +#include "writer.h" + +#ifdef __GNUC__ +RAPIDJSON_DIAG_PUSH +RAPIDJSON_DIAG_OFF(effc++) +#endif + +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. +/*! + \tparam OutputStream Type of ouptut os. + \tparam SourceEncoding Encoding of source string. + \tparam TargetEncoding Encoding of output stream. + \tparam StackAllocator Type of allocator for allocating memory of stack. +*/ +template<typename OutputStream, typename SourceEncoding = UTF8<>, typename TargetEncoding = UTF8<>, typename StackAllocator = CrtAllocator, unsigned writeFlags = kWriteDefaultFlags> +class PrettyWriter : public Writer<OutputStream, SourceEncoding, TargetEncoding, StackAllocator, writeFlags> { +public: + typedef Writer<OutputStream, SourceEncoding, TargetEncoding, StackAllocator> Base; + typedef typename Base::Ch Ch; + + //! Constructor + /*! \param os Output stream. + \param allocator User supplied allocator. If it is null, it will create a private one. + \param levelDepth Initial capacity of stack. + */ + explicit PrettyWriter(OutputStream& os, StackAllocator* allocator = 0, size_t levelDepth = Base::kDefaultLevelDepth) : + 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) {} + + //! Set custom indentation. + /*! \param indentChar Character for indentation. Must be whitespace character (' ', '\\t', '\\n', '\\r'). + \param indentCharCount Number of indent characters for each indentation level. + \note The default indentation is 4 spaces. + */ + PrettyWriter& SetIndent(Ch indentChar, unsigned indentCharCount) { + RAPIDJSON_ASSERT(indentChar == ' ' || indentChar == '\t' || indentChar == '\n' || indentChar == '\r'); + indentChar_ = indentChar; + indentCharCount_ = indentCharCount; + return *this; + } + + //! Set pretty writer formatting options. + /*! \param options Formatting options. + */ + PrettyWriter& SetFormatOptions(PrettyFormatOptions options) { + formatOptions_ = options; + return *this; + } + + /*! @name Implementation of Handler + \see Handler + */ + //@{ + + bool Null() { PrettyPrefix(kNullType); return Base::WriteNull(); } + bool Bool(bool b) { PrettyPrefix(b ? kTrueType : kFalseType); return Base::WriteBool(b); } + bool Int(int i) { PrettyPrefix(kNumberType); return Base::WriteInt(i); } + bool Uint(unsigned u) { PrettyPrefix(kNumberType); return Base::WriteUint(u); } + bool Int64(int64_t i64) { PrettyPrefix(kNumberType); return Base::WriteInt64(i64); } + bool Uint64(uint64_t u64) { PrettyPrefix(kNumberType); return Base::WriteUint64(u64); } + 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) { + RAPIDJSON_ASSERT(str != 0); + (void)copy; + PrettyPrefix(kStringType); + return Base::WriteString(str, length); + } + +#if RAPIDJSON_HAS_STDSTRING + bool String(const std::basic_string<Ch>& str) { + return String(str.data(), SizeType(str.size())); + } +#endif + + bool StartObject() { + PrettyPrefix(kObjectType); + new (Base::level_stack_.template Push<typename Base::Level>()) typename Base::Level(false); + return Base::WriteStartObject(); + } + + 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) { + (void)memberCount; + RAPIDJSON_ASSERT(Base::level_stack_.GetSize() >= sizeof(typename Base::Level)); + RAPIDJSON_ASSERT(!Base::level_stack_.template Top<typename Base::Level>()->inArray); + bool empty = Base::level_stack_.template Pop<typename Base::Level>(1)->valueCount == 0; + + if (!empty) { + Base::os_->Put('\n'); + WriteIndent(); + } + bool ret = Base::WriteEndObject(); + (void)ret; + RAPIDJSON_ASSERT(ret == true); + if (Base::level_stack_.Empty()) // end of json text + Base::os_->Flush(); + return true; + } + + bool StartArray() { + PrettyPrefix(kArrayType); + new (Base::level_stack_.template Push<typename Base::Level>()) typename Base::Level(true); + return Base::WriteStartArray(); + } + + bool EndArray(SizeType memberCount = 0) { + (void)memberCount; + RAPIDJSON_ASSERT(Base::level_stack_.GetSize() >= sizeof(typename Base::Level)); + RAPIDJSON_ASSERT(Base::level_stack_.template Top<typename Base::Level>()->inArray); + bool empty = Base::level_stack_.template Pop<typename Base::Level>(1)->valueCount == 0; + + if (!empty && !(formatOptions_ & kFormatSingleLineArray)) { + Base::os_->Put('\n'); + WriteIndent(); + } + bool ret = Base::WriteEndArray(); + (void)ret; + RAPIDJSON_ASSERT(ret == true); + if (Base::level_stack_.Empty()) // end of json text + Base::os_->Flush(); + return true; + } + + //@} + + /*! @name Convenience extensions */ + //@{ + + //! Simpler but slower overload. + bool String(const Ch* str) { return String(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: + void PrettyPrefix(Type type) { + (void)type; + if (Base::level_stack_.GetSize() != 0) { // this value is not at root + typename Base::Level* level = Base::level_stack_.template Top<typename Base::Level>(); + + if (level->inArray) { + if (level->valueCount > 0) { + Base::os_->Put(','); // add comma if it is not the first element in array + if (formatOptions_ & kFormatSingleLineArray) + Base::os_->Put(' '); + } + + if (!(formatOptions_ & kFormatSingleLineArray)) { + Base::os_->Put('\n'); + WriteIndent(); + } + } + else { // in object + if (level->valueCount > 0) { + if (level->valueCount % 2 == 0) { + Base::os_->Put(','); + Base::os_->Put('\n'); + } + else { + Base::os_->Put(':'); + Base::os_->Put(' '); + } + } + else + Base::os_->Put('\n'); + + if (level->valueCount % 2 == 0) + WriteIndent(); + } + if (!level->inArray && level->valueCount % 2 == 0) + RAPIDJSON_ASSERT(type == kStringType); // if it's in object, then even number should be a name + level->valueCount++; + } + else { + RAPIDJSON_ASSERT(!Base::hasRoot_); // Should only has one and only one root. + Base::hasRoot_ = true; + } + } + + void WriteIndent() { + size_t count = (Base::level_stack_.GetSize() / sizeof(typename Base::Level)) * indentCharCount_; + PutN(*Base::os_, static_cast<typename TargetEncoding::Ch>(indentChar_), count); + } + + Ch indentChar_; + unsigned indentCharCount_; + PrettyFormatOptions formatOptions_; + +private: + // Prohibit copy constructor & assignment operator. + PrettyWriter(const PrettyWriter&); + PrettyWriter& operator=(const PrettyWriter&); +}; + +RAPIDJSON_NAMESPACE_END + +#ifdef __GNUC__ +RAPIDJSON_DIAG_POP +#endif + +#endif // RAPIDJSON_RAPIDJSON_H_ |