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authorOran Juice <oranjuices@hotmail.com>2014-10-18 02:21:37 +0530
committerOran Juice <oranjuices@hotmail.com>2014-10-18 02:21:37 +0530
commit09a659edb5f77ce1879338545f388076881b4e06 (patch)
tree29d2f0baa5c4009fcbb61c60d4b9e9db229ef9ca /src/common/rapidjson/writer.h
parentremoved unecessary mnemonics test (diff)
downloadmonero-09a659edb5f77ce1879338545f388076881b4e06.tar.xz
Stores seed language in wallet file. added rapidjson. Yet to test backward compatibility
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diff --git a/src/common/rapidjson/writer.h b/src/common/rapidjson/writer.h
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+// Copyright (C) 2011 Milo Yip
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+#ifndef RAPIDJSON_WRITER_H_
+#define RAPIDJSON_WRITER_H_
+
+#include "rapidjson.h"
+#include "internal/stack.h"
+#include "internal/strfunc.h"
+#include "internal/dtoa.h"
+#include "internal/itoa.h"
+#include "stringbuffer.h"
+#include <new> // placement new
+
+#ifdef _MSC_VER
+RAPIDJSON_DIAG_PUSH
+RAPIDJSON_DIAG_OFF(4127) // conditional expression is constant
+#endif
+
+namespace rapidjson {
+
+//! JSON writer
+/*! Writer implements the concept Handler.
+ It generates JSON text by events to an output os.
+
+ User may programmatically calls the functions of a writer to generate JSON text.
+
+ On the other side, a writer can also be passed to objects that generates events,
+
+ for example Reader::Parse() and Document::Accept().
+
+ \tparam OutputStream Type of output stream.
+ \tparam SourceEncoding Encoding of source string.
+ \tparam TargetEncoding Encoding of output stream.
+ \tparam StackAllocator Type of allocator for allocating memory of stack.
+ \note implements Handler concept
+*/
+template<typename OutputStream, typename SourceEncoding = UTF8<>, typename TargetEncoding = UTF8<>, typename StackAllocator = CrtAllocator>
+class Writer {
+public:
+ typedef typename SourceEncoding::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.
+ */
+ Writer(OutputStream& os, StackAllocator* stackAllocator = 0, size_t levelDepth = kDefaultLevelDepth) :
+ os_(&os), level_stack_(stackAllocator, levelDepth * sizeof(Level)), hasRoot_(false) {}
+
+ Writer(StackAllocator* allocator = 0, size_t levelDepth = kDefaultLevelDepth) :
+ os_(0), level_stack_(allocator, levelDepth * sizeof(Level)), hasRoot_(false) {}
+
+ //! Reset the writer with a new stream.
+ /*!
+ This function reset the writer with a new stream and default settings,
+ in order to make a Writer object reusable for output multiple JSONs.
+
+ \param os New output stream.
+ \code
+ Writer<OutputStream> writer(os1);
+ writer.StartObject();
+ // ...
+ writer.EndObject();
+
+ writer.Reset(os2);
+ writer.StartObject();
+ // ...
+ writer.EndObject();
+ \endcode
+ */
+ void Reset(OutputStream& os) {
+ os_ = &os;
+ hasRoot_ = false;
+ level_stack_.Clear();
+ }
+
+ //! Checks whether the output is a complete JSON.
+ /*!
+ A complete JSON has a complete root object or array.
+ */
+ bool IsComplete() const {
+ return hasRoot_ && level_stack_.Empty();
+ }
+
+ /*!@name Implementation of Handler
+ \see Handler
+ */
+ //@{
+
+ bool Null() { Prefix(kNullType); return WriteNull(); }
+ bool Bool(bool b) { Prefix(b ? kTrueType : kFalseType); return WriteBool(b); }
+ bool Int(int i) { Prefix(kNumberType); return WriteInt(i); }
+ bool Uint(unsigned u) { Prefix(kNumberType); return WriteUint(u); }
+ bool Int64(int64_t i64) { Prefix(kNumberType); return WriteInt64(i64); }
+ bool Uint64(uint64_t u64) { Prefix(kNumberType); return WriteUint64(u64); }
+
+ //! Writes the given \c double value to the stream
+ /*!
+ \param d The value to be written.
+ \return Whether it is succeed.
+ */
+ bool Double(double d) { Prefix(kNumberType); return WriteDouble(d); }
+
+ bool String(const Ch* str, SizeType length, bool copy = false) {
+ (void)copy;
+ Prefix(kStringType);
+ return WriteString(str, length);
+ }
+
+ bool StartObject() {
+ Prefix(kObjectType);
+ new (level_stack_.template Push<Level>()) Level(false);
+ return 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(level_stack_.GetSize() >= sizeof(Level));
+ RAPIDJSON_ASSERT(!level_stack_.template Top<Level>()->inArray);
+ level_stack_.template Pop<Level>(1);
+ bool ret = WriteEndObject();
+ if (level_stack_.Empty()) // end of json text
+ os_->Flush();
+ return ret;
+ }
+
+ bool StartArray() {
+ Prefix(kArrayType);
+ new (level_stack_.template Push<Level>()) Level(true);
+ return WriteStartArray();
+ }
+
+ bool EndArray(SizeType elementCount = 0) {
+ (void)elementCount;
+ RAPIDJSON_ASSERT(level_stack_.GetSize() >= sizeof(Level));
+ RAPIDJSON_ASSERT(level_stack_.template Top<Level>()->inArray);
+ level_stack_.template Pop<Level>(1);
+ bool ret = WriteEndArray();
+ if (level_stack_.Empty()) // end of json text
+ os_->Flush();
+ return ret;
+ }
+ //@}
+
+ /*! @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:
+ //! Information for each nested level
+ struct Level {
+ Level(bool inArray_) : valueCount(0), inArray(inArray_) {}
+ size_t valueCount; //!< number of values in this level
+ bool inArray; //!< true if in array, otherwise in object
+ };
+
+ static const size_t kDefaultLevelDepth = 32;
+
+ bool WriteNull() {
+ os_->Put('n'); os_->Put('u'); os_->Put('l'); os_->Put('l'); return true;
+ }
+
+ bool WriteBool(bool b) {
+ if (b) {
+ os_->Put('t'); os_->Put('r'); os_->Put('u'); os_->Put('e');
+ }
+ else {
+ os_->Put('f'); os_->Put('a'); os_->Put('l'); os_->Put('s'); os_->Put('e');
+ }
+ return true;
+ }
+
+ bool WriteInt(int i) {
+ char buffer[11];
+ const char* end = internal::i32toa(i, buffer);
+ for (const char* p = buffer; p != end; ++p)
+ os_->Put(*p);
+ return true;
+ }
+
+ bool WriteUint(unsigned u) {
+ char buffer[10];
+ const char* end = internal::u32toa(u, buffer);
+ for (const char* p = buffer; p != end; ++p)
+ os_->Put(*p);
+ return true;
+ }
+
+ bool WriteInt64(int64_t i64) {
+ char buffer[21];
+ const char* end = internal::i64toa(i64, buffer);
+ for (const char* p = buffer; p != end; ++p)
+ os_->Put(*p);
+ return true;
+ }
+
+ bool WriteUint64(uint64_t u64) {
+ char buffer[20];
+ char* end = internal::u64toa(u64, buffer);
+ for (char* p = buffer; p != end; ++p)
+ os_->Put(*p);
+ return true;
+ }
+
+ bool WriteDouble(double d) {
+ char buffer[25];
+ char* end = internal::dtoa(d, buffer);
+ for (char* p = buffer; p != end; ++p)
+ os_->Put(*p);
+ return true;
+ }
+
+ 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 char escape[256] = {
+#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
+ 'u', 'u', 'u', 'u', 'u', 'u', 'u', 'u', 'b', 't', 'n', 'u', 'f', 'r', 'u', 'u', // 00
+ 'u', 'u', 'u', 'u', 'u', 'u', 'u', 'u', 'u', 'u', 'u', 'u', 'u', 'u', 'u', 'u', // 10
+ 0, 0, '"', 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 20
+ Z16, Z16, // 30~4F
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,'\\', 0, 0, 0, // 50
+ Z16, Z16, Z16, Z16, Z16, Z16, Z16, Z16, Z16, Z16 // 60~FF
+#undef Z16
+ };
+
+ os_->Put('\"');
+ GenericStringStream<SourceEncoding> is(str);
+ while (is.Tell() < length) {
+ const Ch c = is.Peek();
+ if (!TargetEncoding::supportUnicode && (unsigned)c >= 0x80) {
+ // Unicode escaping
+ unsigned codepoint;
+ if (!SourceEncoding::Decode(is, &codepoint))
+ return false;
+ os_->Put('\\');
+ os_->Put('u');
+ if (codepoint <= 0xD7FF || (codepoint >= 0xE000 && codepoint <= 0xFFFF)) {
+ os_->Put(hexDigits[(codepoint >> 12) & 15]);
+ os_->Put(hexDigits[(codepoint >> 8) & 15]);
+ os_->Put(hexDigits[(codepoint >> 4) & 15]);
+ os_->Put(hexDigits[(codepoint ) & 15]);
+ }
+ else if (codepoint >= 0x010000 && codepoint <= 0x10FFFF) {
+ // Surrogate pair
+ unsigned s = codepoint - 0x010000;
+ unsigned lead = (s >> 10) + 0xD800;
+ unsigned trail = (s & 0x3FF) + 0xDC00;
+ os_->Put(hexDigits[(lead >> 12) & 15]);
+ os_->Put(hexDigits[(lead >> 8) & 15]);
+ os_->Put(hexDigits[(lead >> 4) & 15]);
+ os_->Put(hexDigits[(lead ) & 15]);
+ os_->Put('\\');
+ os_->Put('u');
+ os_->Put(hexDigits[(trail >> 12) & 15]);
+ os_->Put(hexDigits[(trail >> 8) & 15]);
+ os_->Put(hexDigits[(trail >> 4) & 15]);
+ os_->Put(hexDigits[(trail ) & 15]);
+ }
+ else
+ return false; // invalid code point
+ }
+ else if ((sizeof(Ch) == 1 || (unsigned)c < 256) && escape[(unsigned char)c]) {
+ is.Take();
+ os_->Put('\\');
+ os_->Put(escape[(unsigned char)c]);
+ if (escape[(unsigned char)c] == 'u') {
+ os_->Put('0');
+ os_->Put('0');
+ os_->Put(hexDigits[(unsigned char)c >> 4]);
+ os_->Put(hexDigits[(unsigned char)c & 0xF]);
+ }
+ }
+ else
+ Transcoder<SourceEncoding, TargetEncoding>::Transcode(is, *os_);
+ }
+ os_->Put('\"');
+ return true;
+ }
+
+ bool WriteStartObject() { os_->Put('{'); return true; }
+ bool WriteEndObject() { os_->Put('}'); return true; }
+ bool WriteStartArray() { os_->Put('['); return true; }
+ bool WriteEndArray() { os_->Put(']'); return true; }
+
+ void Prefix(Type type) {
+ (void)type;
+ if (level_stack_.GetSize() != 0) { // this value is not at root
+ Level* level = level_stack_.template Top<Level>();
+ if (level->valueCount > 0) {
+ if (level->inArray)
+ os_->Put(','); // add comma if it is not the first element in array
+ else // in object
+ os_->Put((level->valueCount % 2 == 0) ? ',' : ':');
+ }
+ 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(!hasRoot_); // Should only has one and only one root.
+ hasRoot_ = true;
+ }
+ }
+
+ OutputStream* os_;
+ internal::Stack<StackAllocator> level_stack_;
+ bool hasRoot_;
+
+private:
+ // Prohibit copy constructor & assignment operator.
+ Writer(const Writer&);
+ Writer& operator=(const Writer&);
+};
+
+// Full specialization for StringStream to prevent memory copying
+
+template<>
+inline bool Writer<StringBuffer>::WriteInt(int i) {
+ char *buffer = os_->Push(11);
+ const char* end = internal::i32toa(i, buffer);
+ os_->Pop(11 - (end - buffer));
+ return true;
+}
+
+template<>
+inline bool Writer<StringBuffer>::WriteUint(unsigned u) {
+ char *buffer = os_->Push(10);
+ const char* end = internal::u32toa(u, buffer);
+ os_->Pop(10 - (end - buffer));
+ return true;
+}
+
+template<>
+inline bool Writer<StringBuffer>::WriteInt64(int64_t i64) {
+ char *buffer = os_->Push(21);
+ const char* end = internal::i64toa(i64, buffer);
+ os_->Pop(21 - (end - buffer));
+ return true;
+}
+
+template<>
+inline bool Writer<StringBuffer>::WriteUint64(uint64_t u) {
+ char *buffer = os_->Push(20);
+ const char* end = internal::u64toa(u, buffer);
+ os_->Pop(20 - (end - buffer));
+ return true;
+}
+
+template<>
+inline bool Writer<StringBuffer>::WriteDouble(double d) {
+ char *buffer = os_->Push(25);
+ char* end = internal::dtoa(d, buffer);
+ os_->Pop(25 - (end - buffer));
+ return true;
+}
+
+} // namespace rapidjson
+
+#ifdef _MSC_VER
+RAPIDJSON_DIAG_POP
+#endif
+
+#endif // RAPIDJSON_RAPIDJSON_H_