--- /dev/null
+// 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) {
+ (void)copy;
+ PrettyPrefix(kNumberType);
+ return Base::WriteString(str, length);
+ }
+
+ 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); }
+
+#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) { 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_
projects / c11concurrency-benchmarks.git / blobdiff