From 26a029d407be480d791972afb5975cf62c9360a6 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Fri, 19 Apr 2024 02:47:55 +0200 Subject: Adding upstream version 124.0.1. Signed-off-by: Daniel Baumann --- .../jsoncpp/src/lib_json/json_reader.cpp | 1992 ++++++++++++++++++++ .../components/jsoncpp/src/lib_json/json_tool.h | 138 ++ .../components/jsoncpp/src/lib_json/json_value.cpp | 1634 ++++++++++++++++ .../jsoncpp/src/lib_json/json_valueiterator.inl | 156 ++ .../jsoncpp/src/lib_json/json_writer.cpp | 1259 +++++++++++++ toolkit/components/jsoncpp/src/lib_json/moz.build | 39 + 6 files changed, 5218 insertions(+) create mode 100644 toolkit/components/jsoncpp/src/lib_json/json_reader.cpp create mode 100644 toolkit/components/jsoncpp/src/lib_json/json_tool.h create mode 100644 toolkit/components/jsoncpp/src/lib_json/json_value.cpp create mode 100644 toolkit/components/jsoncpp/src/lib_json/json_valueiterator.inl create mode 100644 toolkit/components/jsoncpp/src/lib_json/json_writer.cpp create mode 100644 toolkit/components/jsoncpp/src/lib_json/moz.build (limited to 'toolkit/components/jsoncpp/src/lib_json') diff --git a/toolkit/components/jsoncpp/src/lib_json/json_reader.cpp b/toolkit/components/jsoncpp/src/lib_json/json_reader.cpp new file mode 100644 index 0000000000..a6a3f4e30d --- /dev/null +++ b/toolkit/components/jsoncpp/src/lib_json/json_reader.cpp @@ -0,0 +1,1992 @@ +// Copyright 2007-2011 Baptiste Lepilleur and The JsonCpp Authors +// Copyright (C) 2016 InfoTeCS JSC. All rights reserved. +// Distributed under MIT license, or public domain if desired and +// recognized in your jurisdiction. +// See file LICENSE for detail or copy at http://jsoncpp.sourceforge.net/LICENSE + +#if !defined(JSON_IS_AMALGAMATION) +#include "json_tool.h" +#include +#include +#include +#endif // if !defined(JSON_IS_AMALGAMATION) +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#if __cplusplus >= 201103L + +#if !defined(sscanf) +#define sscanf std::sscanf +#endif + +#endif //__cplusplus + +#if defined(_MSC_VER) +#if !defined(_CRT_SECURE_CPP_OVERLOAD_STANDARD_NAMES) +#define _CRT_SECURE_CPP_OVERLOAD_STANDARD_NAMES 1 +#endif //_CRT_SECURE_CPP_OVERLOAD_STANDARD_NAMES +#endif //_MSC_VER + +#if defined(_MSC_VER) +// Disable warning about strdup being deprecated. +#pragma warning(disable : 4996) +#endif + +// Define JSONCPP_DEPRECATED_STACK_LIMIT as an appropriate integer at compile +// time to change the stack limit +#if !defined(JSONCPP_DEPRECATED_STACK_LIMIT) +#define JSONCPP_DEPRECATED_STACK_LIMIT 1000 +#endif + +static size_t const stackLimit_g = + JSONCPP_DEPRECATED_STACK_LIMIT; // see readValue() + +namespace Json { + +#if __cplusplus >= 201103L || (defined(_CPPLIB_VER) && _CPPLIB_VER >= 520) +using CharReaderPtr = std::unique_ptr; +#else +using CharReaderPtr = std::auto_ptr; +#endif + +// Implementation of class Features +// //////////////////////////////// + +Features::Features() = default; + +Features Features::all() { return {}; } + +Features Features::strictMode() { + Features features; + features.allowComments_ = false; + features.strictRoot_ = true; + features.allowDroppedNullPlaceholders_ = false; + features.allowNumericKeys_ = false; + return features; +} + +// Implementation of class Reader +// //////////////////////////////// + +bool Reader::containsNewLine(Reader::Location begin, Reader::Location end) { + return std::any_of(begin, end, [](char b) { return b == '\n' || b == '\r'; }); +} + +// Class Reader +// ////////////////////////////////////////////////////////////////// + +Reader::Reader() : features_(Features::all()) {} + +Reader::Reader(const Features& features) : features_(features) {} + +bool Reader::parse(const std::string& document, Value& root, + bool collectComments) { + document_.assign(document.begin(), document.end()); + const char* begin = document_.c_str(); + const char* end = begin + document_.length(); + return parse(begin, end, root, collectComments); +} + +bool Reader::parse(std::istream& is, Value& root, bool collectComments) { + // std::istream_iterator begin(is); + // std::istream_iterator end; + // Those would allow streamed input from a file, if parse() were a + // template function. + + // Since String is reference-counted, this at least does not + // create an extra copy. + String doc(std::istreambuf_iterator(is), {}); + return parse(doc.data(), doc.data() + doc.size(), root, collectComments); +} + +bool Reader::parse(const char* beginDoc, const char* endDoc, Value& root, + bool collectComments) { + if (!features_.allowComments_) { + collectComments = false; + } + + begin_ = beginDoc; + end_ = endDoc; + collectComments_ = collectComments; + current_ = begin_; + lastValueEnd_ = nullptr; + lastValue_ = nullptr; + commentsBefore_.clear(); + errors_.clear(); + while (!nodes_.empty()) + nodes_.pop(); + nodes_.push(&root); + + bool successful = readValue(); + Token token; + skipCommentTokens(token); + if (collectComments_ && !commentsBefore_.empty()) + root.setComment(commentsBefore_, commentAfter); + if (features_.strictRoot_) { + if (!root.isArray() && !root.isObject()) { + // Set error location to start of doc, ideally should be first token found + // in doc + token.type_ = tokenError; + token.start_ = beginDoc; + token.end_ = endDoc; + addError( + "A valid JSON document must be either an array or an object value.", + token); + return false; + } + } + return successful; +} + +bool Reader::readValue() { + // readValue() may call itself only if it calls readObject() or ReadArray(). + // These methods execute nodes_.push() just before and nodes_.pop)() just + // after calling readValue(). parse() executes one nodes_.push(), so > instead + // of >=. + if (nodes_.size() > stackLimit_g) + throwRuntimeError("Exceeded stackLimit in readValue()."); + + Token token; + skipCommentTokens(token); + bool successful = true; + + if (collectComments_ && !commentsBefore_.empty()) { + currentValue().setComment(commentsBefore_, commentBefore); + commentsBefore_.clear(); + } + + switch (token.type_) { + case tokenObjectBegin: + successful = readObject(token); + currentValue().setOffsetLimit(current_ - begin_); + break; + case tokenArrayBegin: + successful = readArray(token); + currentValue().setOffsetLimit(current_ - begin_); + break; + case tokenNumber: + successful = decodeNumber(token); + break; + case tokenString: + successful = decodeString(token); + break; + case tokenTrue: { + Value v(true); + currentValue().swapPayload(v); + currentValue().setOffsetStart(token.start_ - begin_); + currentValue().setOffsetLimit(token.end_ - begin_); + } break; + case tokenFalse: { + Value v(false); + currentValue().swapPayload(v); + currentValue().setOffsetStart(token.start_ - begin_); + currentValue().setOffsetLimit(token.end_ - begin_); + } break; + case tokenNull: { + Value v; + currentValue().swapPayload(v); + currentValue().setOffsetStart(token.start_ - begin_); + currentValue().setOffsetLimit(token.end_ - begin_); + } break; + case tokenArraySeparator: + case tokenObjectEnd: + case tokenArrayEnd: + if (features_.allowDroppedNullPlaceholders_) { + // "Un-read" the current token and mark the current value as a null + // token. + current_--; + Value v; + currentValue().swapPayload(v); + currentValue().setOffsetStart(current_ - begin_ - 1); + currentValue().setOffsetLimit(current_ - begin_); + break; + } // Else, fall through... + default: + currentValue().setOffsetStart(token.start_ - begin_); + currentValue().setOffsetLimit(token.end_ - begin_); + return addError("Syntax error: value, object or array expected.", token); + } + + if (collectComments_) { + lastValueEnd_ = current_; + lastValue_ = ¤tValue(); + } + + return successful; +} + +void Reader::skipCommentTokens(Token& token) { + if (features_.allowComments_) { + do { + readToken(token); + } while (token.type_ == tokenComment); + } else { + readToken(token); + } +} + +bool Reader::readToken(Token& token) { + skipSpaces(); + token.start_ = current_; + Char c = getNextChar(); + bool ok = true; + switch (c) { + case '{': + token.type_ = tokenObjectBegin; + break; + case '}': + token.type_ = tokenObjectEnd; + break; + case '[': + token.type_ = tokenArrayBegin; + break; + case ']': + token.type_ = tokenArrayEnd; + break; + case '"': + token.type_ = tokenString; + ok = readString(); + break; + case '/': + token.type_ = tokenComment; + ok = readComment(); + break; + case '0': + case '1': + case '2': + case '3': + case '4': + case '5': + case '6': + case '7': + case '8': + case '9': + case '-': + token.type_ = tokenNumber; + readNumber(); + break; + case 't': + token.type_ = tokenTrue; + ok = match("rue", 3); + break; + case 'f': + token.type_ = tokenFalse; + ok = match("alse", 4); + break; + case 'n': + token.type_ = tokenNull; + ok = match("ull", 3); + break; + case ',': + token.type_ = tokenArraySeparator; + break; + case ':': + token.type_ = tokenMemberSeparator; + break; + case 0: + token.type_ = tokenEndOfStream; + break; + default: + ok = false; + break; + } + if (!ok) + token.type_ = tokenError; + token.end_ = current_; + return ok; +} + +void Reader::skipSpaces() { + while (current_ != end_) { + Char c = *current_; + if (c == ' ' || c == '\t' || c == '\r' || c == '\n') + ++current_; + else + break; + } +} + +bool Reader::match(const Char* pattern, int patternLength) { + if (end_ - current_ < patternLength) + return false; + int index = patternLength; + while (index--) + if (current_[index] != pattern[index]) + return false; + current_ += patternLength; + return true; +} + +bool Reader::readComment() { + Location commentBegin = current_ - 1; + Char c = getNextChar(); + bool successful = false; + if (c == '*') + successful = readCStyleComment(); + else if (c == '/') + successful = readCppStyleComment(); + if (!successful) + return false; + + if (collectComments_) { + CommentPlacement placement = commentBefore; + if (lastValueEnd_ && !containsNewLine(lastValueEnd_, commentBegin)) { + if (c != '*' || !containsNewLine(commentBegin, current_)) + placement = commentAfterOnSameLine; + } + + addComment(commentBegin, current_, placement); + } + return true; +} + +String Reader::normalizeEOL(Reader::Location begin, Reader::Location end) { + String normalized; + normalized.reserve(static_cast(end - begin)); + Reader::Location current = begin; + while (current != end) { + char c = *current++; + if (c == '\r') { + if (current != end && *current == '\n') + // convert dos EOL + ++current; + // convert Mac EOL + normalized += '\n'; + } else { + normalized += c; + } + } + return normalized; +} + +void Reader::addComment(Location begin, Location end, + CommentPlacement placement) { + assert(collectComments_); + const String& normalized = normalizeEOL(begin, end); + if (placement == commentAfterOnSameLine) { + assert(lastValue_ != nullptr); + lastValue_->setComment(normalized, placement); + } else { + commentsBefore_ += normalized; + } +} + +bool Reader::readCStyleComment() { + while ((current_ + 1) < end_) { + Char c = getNextChar(); + if (c == '*' && *current_ == '/') + break; + } + return getNextChar() == '/'; +} + +bool Reader::readCppStyleComment() { + while (current_ != end_) { + Char c = getNextChar(); + if (c == '\n') + break; + if (c == '\r') { + // Consume DOS EOL. It will be normalized in addComment. + if (current_ != end_ && *current_ == '\n') + getNextChar(); + // Break on Moc OS 9 EOL. + break; + } + } + return true; +} + +void Reader::readNumber() { + Location p = current_; + char c = '0'; // stopgap for already consumed character + // integral part + while (c >= '0' && c <= '9') + c = (current_ = p) < end_ ? *p++ : '\0'; + // fractional part + if (c == '.') { + c = (current_ = p) < end_ ? *p++ : '\0'; + while (c >= '0' && c <= '9') + c = (current_ = p) < end_ ? *p++ : '\0'; + } + // exponential part + if (c == 'e' || c == 'E') { + c = (current_ = p) < end_ ? *p++ : '\0'; + if (c == '+' || c == '-') + c = (current_ = p) < end_ ? *p++ : '\0'; + while (c >= '0' && c <= '9') + c = (current_ = p) < end_ ? *p++ : '\0'; + } +} + +bool Reader::readString() { + Char c = '\0'; + while (current_ != end_) { + c = getNextChar(); + if (c == '\\') + getNextChar(); + else if (c == '"') + break; + } + return c == '"'; +} + +bool Reader::readObject(Token& token) { + Token tokenName; + String name; + Value init(objectValue); + currentValue().swapPayload(init); + currentValue().setOffsetStart(token.start_ - begin_); + while (readToken(tokenName)) { + bool initialTokenOk = true; + while (tokenName.type_ == tokenComment && initialTokenOk) + initialTokenOk = readToken(tokenName); + if (!initialTokenOk) + break; + if (tokenName.type_ == tokenObjectEnd && name.empty()) // empty object + return true; + name.clear(); + if (tokenName.type_ == tokenString) { + if (!decodeString(tokenName, name)) + return recoverFromError(tokenObjectEnd); + } else if (tokenName.type_ == tokenNumber && features_.allowNumericKeys_) { + Value numberName; + if (!decodeNumber(tokenName, numberName)) + return recoverFromError(tokenObjectEnd); + name = numberName.asString(); + } else { + break; + } + + Token colon; + if (!readToken(colon) || colon.type_ != tokenMemberSeparator) { + return addErrorAndRecover("Missing ':' after object member name", colon, + tokenObjectEnd); + } + Value& value = currentValue()[name]; + nodes_.push(&value); + bool ok = readValue(); + nodes_.pop(); + if (!ok) // error already set + return recoverFromError(tokenObjectEnd); + + Token comma; + if (!readToken(comma) || + (comma.type_ != tokenObjectEnd && comma.type_ != tokenArraySeparator && + comma.type_ != tokenComment)) { + return addErrorAndRecover("Missing ',' or '}' in object declaration", + comma, tokenObjectEnd); + } + bool finalizeTokenOk = true; + while (comma.type_ == tokenComment && finalizeTokenOk) + finalizeTokenOk = readToken(comma); + if (comma.type_ == tokenObjectEnd) + return true; + } + return addErrorAndRecover("Missing '}' or object member name", tokenName, + tokenObjectEnd); +} + +bool Reader::readArray(Token& token) { + Value init(arrayValue); + currentValue().swapPayload(init); + currentValue().setOffsetStart(token.start_ - begin_); + skipSpaces(); + if (current_ != end_ && *current_ == ']') // empty array + { + Token endArray; + readToken(endArray); + return true; + } + int index = 0; + for (;;) { + Value& value = currentValue()[index++]; + nodes_.push(&value); + bool ok = readValue(); + nodes_.pop(); + if (!ok) // error already set + return recoverFromError(tokenArrayEnd); + + Token currentToken; + // Accept Comment after last item in the array. + ok = readToken(currentToken); + while (currentToken.type_ == tokenComment && ok) { + ok = readToken(currentToken); + } + bool badTokenType = (currentToken.type_ != tokenArraySeparator && + currentToken.type_ != tokenArrayEnd); + if (!ok || badTokenType) { + return addErrorAndRecover("Missing ',' or ']' in array declaration", + currentToken, tokenArrayEnd); + } + if (currentToken.type_ == tokenArrayEnd) + break; + } + return true; +} + +bool Reader::decodeNumber(Token& token) { + Value decoded; + if (!decodeNumber(token, decoded)) + return false; + currentValue().swapPayload(decoded); + currentValue().setOffsetStart(token.start_ - begin_); + currentValue().setOffsetLimit(token.end_ - begin_); + return true; +} + +bool Reader::decodeNumber(Token& token, Value& decoded) { + // Attempts to parse the number as an integer. If the number is + // larger than the maximum supported value of an integer then + // we decode the number as a double. + Location current = token.start_; + bool isNegative = *current == '-'; + if (isNegative) + ++current; + // TODO: Help the compiler do the div and mod at compile time or get rid of + // them. + Value::LargestUInt maxIntegerValue = + isNegative ? Value::LargestUInt(Value::maxLargestInt) + 1 + : Value::maxLargestUInt; + Value::LargestUInt threshold = maxIntegerValue / 10; + Value::LargestUInt value = 0; + while (current < token.end_) { + Char c = *current++; + if (c < '0' || c > '9') + return decodeDouble(token, decoded); + auto digit(static_cast(c - '0')); + if (value >= threshold) { + // We've hit or exceeded the max value divided by 10 (rounded down). If + // a) we've only just touched the limit, b) this is the last digit, and + // c) it's small enough to fit in that rounding delta, we're okay. + // Otherwise treat this number as a double to avoid overflow. + if (value > threshold || current != token.end_ || + digit > maxIntegerValue % 10) { + return decodeDouble(token, decoded); + } + } + value = value * 10 + digit; + } + if (isNegative && value == maxIntegerValue) + decoded = Value::minLargestInt; + else if (isNegative) + decoded = -Value::LargestInt(value); + else if (value <= Value::LargestUInt(Value::maxInt)) + decoded = Value::LargestInt(value); + else + decoded = value; + return true; +} + +bool Reader::decodeDouble(Token& token) { + Value decoded; + if (!decodeDouble(token, decoded)) + return false; + currentValue().swapPayload(decoded); + currentValue().setOffsetStart(token.start_ - begin_); + currentValue().setOffsetLimit(token.end_ - begin_); + return true; +} + +bool Reader::decodeDouble(Token& token, Value& decoded) { + double value = 0; + String buffer(token.start_, token.end_); + IStringStream is(buffer); + if (!(is >> value)) + return addError( + "'" + String(token.start_, token.end_) + "' is not a number.", token); + decoded = value; + return true; +} + +bool Reader::decodeString(Token& token) { + String decoded_string; + if (!decodeString(token, decoded_string)) + return false; + Value decoded(decoded_string); + currentValue().swapPayload(decoded); + currentValue().setOffsetStart(token.start_ - begin_); + currentValue().setOffsetLimit(token.end_ - begin_); + return true; +} + +bool Reader::decodeString(Token& token, String& decoded) { + decoded.reserve(static_cast(token.end_ - token.start_ - 2)); + Location current = token.start_ + 1; // skip '"' + Location end = token.end_ - 1; // do not include '"' + while (current != end) { + Char c = *current++; + if (c == '"') + break; + if (c == '\\') { + if (current == end) + return addError("Empty escape sequence in string", token, current); + Char escape = *current++; + switch (escape) { + case '"': + decoded += '"'; + break; + case '/': + decoded += '/'; + break; + case '\\': + decoded += '\\'; + break; + case 'b': + decoded += '\b'; + break; + case 'f': + decoded += '\f'; + break; + case 'n': + decoded += '\n'; + break; + case 'r': + decoded += '\r'; + break; + case 't': + decoded += '\t'; + break; + case 'u': { + unsigned int unicode; + if (!decodeUnicodeCodePoint(token, current, end, unicode)) + return false; + decoded += codePointToUTF8(unicode); + } break; + default: + return addError("Bad escape sequence in string", token, current); + } + } else { + decoded += c; + } + } + return true; +} + +bool Reader::decodeUnicodeCodePoint(Token& token, Location& current, + Location end, unsigned int& unicode) { + + if (!decodeUnicodeEscapeSequence(token, current, end, unicode)) + return false; + if (unicode >= 0xD800 && unicode <= 0xDBFF) { + // surrogate pairs + if (end - current < 6) + return addError( + "additional six characters expected to parse unicode surrogate pair.", + token, current); + if (*(current++) == '\\' && *(current++) == 'u') { + unsigned int surrogatePair; + if (decodeUnicodeEscapeSequence(token, current, end, surrogatePair)) { + unicode = 0x10000 + ((unicode & 0x3FF) << 10) + (surrogatePair & 0x3FF); + } else + return false; + } else + return addError("expecting another \\u token to begin the second half of " + "a unicode surrogate pair", + token, current); + } + return true; +} + +bool Reader::decodeUnicodeEscapeSequence(Token& token, Location& current, + Location end, + unsigned int& ret_unicode) { + if (end - current < 4) + return addError( + "Bad unicode escape sequence in string: four digits expected.", token, + current); + int unicode = 0; + for (int index = 0; index < 4; ++index) { + Char c = *current++; + unicode *= 16; + if (c >= '0' && c <= '9') + unicode += c - '0'; + else if (c >= 'a' && c <= 'f') + unicode += c - 'a' + 10; + else if (c >= 'A' && c <= 'F') + unicode += c - 'A' + 10; + else + return addError( + "Bad unicode escape sequence in string: hexadecimal digit expected.", + token, current); + } + ret_unicode = static_cast(unicode); + return true; +} + +bool Reader::addError(const String& message, Token& token, Location extra) { + ErrorInfo info; + info.token_ = token; + info.message_ = message; + info.extra_ = extra; + errors_.push_back(info); + return false; +} + +bool Reader::recoverFromError(TokenType skipUntilToken) { + size_t const errorCount = errors_.size(); + Token skip; + for (;;) { + if (!readToken(skip)) + errors_.resize(errorCount); // discard errors caused by recovery + if (skip.type_ == skipUntilToken || skip.type_ == tokenEndOfStream) + break; + } + errors_.resize(errorCount); + return false; +} + +bool Reader::addErrorAndRecover(const String& message, Token& token, + TokenType skipUntilToken) { + addError(message, token); + return recoverFromError(skipUntilToken); +} + +Value& Reader::currentValue() { return *(nodes_.top()); } + +Reader::Char Reader::getNextChar() { + if (current_ == end_) + return 0; + return *current_++; +} + +void Reader::getLocationLineAndColumn(Location location, int& line, + int& column) const { + Location current = begin_; + Location lastLineStart = current; + line = 0; + while (current < location && current != end_) { + Char c = *current++; + if (c == '\r') { + if (*current == '\n') + ++current; + lastLineStart = current; + ++line; + } else if (c == '\n') { + lastLineStart = current; + ++line; + } + } + // column & line start at 1 + column = int(location - lastLineStart) + 1; + ++line; +} + +String Reader::getLocationLineAndColumn(Location location) const { + int line, column; + getLocationLineAndColumn(location, line, column); + char buffer[18 + 16 + 16 + 1]; + jsoncpp_snprintf(buffer, sizeof(buffer), "Line %d, Column %d", line, column); + return buffer; +} + +// Deprecated. Preserved for backward compatibility +String Reader::getFormatedErrorMessages() const { + return getFormattedErrorMessages(); +} + +String Reader::getFormattedErrorMessages() const { + String formattedMessage; + for (const auto& error : errors_) { + formattedMessage += + "* " + getLocationLineAndColumn(error.token_.start_) + "\n"; + formattedMessage += " " + error.message_ + "\n"; + if (error.extra_) + formattedMessage += + "See " + getLocationLineAndColumn(error.extra_) + " for detail.\n"; + } + return formattedMessage; +} + +std::vector Reader::getStructuredErrors() const { + std::vector allErrors; + for (const auto& error : errors_) { + Reader::StructuredError structured; + structured.offset_start = error.token_.start_ - begin_; + structured.offset_limit = error.token_.end_ - begin_; + structured.message = error.message_; + allErrors.push_back(structured); + } + return allErrors; +} + +bool Reader::pushError(const Value& value, const String& message) { + ptrdiff_t const length = end_ - begin_; + if (value.getOffsetStart() > length || value.getOffsetLimit() > length) + return false; + Token token; + token.type_ = tokenError; + token.start_ = begin_ + value.getOffsetStart(); + token.end_ = begin_ + value.getOffsetLimit(); + ErrorInfo info; + info.token_ = token; + info.message_ = message; + info.extra_ = nullptr; + errors_.push_back(info); + return true; +} + +bool Reader::pushError(const Value& value, const String& message, + const Value& extra) { + ptrdiff_t const length = end_ - begin_; + if (value.getOffsetStart() > length || value.getOffsetLimit() > length || + extra.getOffsetLimit() > length) + return false; + Token token; + token.type_ = tokenError; + token.start_ = begin_ + value.getOffsetStart(); + token.end_ = begin_ + value.getOffsetLimit(); + ErrorInfo info; + info.token_ = token; + info.message_ = message; + info.extra_ = begin_ + extra.getOffsetStart(); + errors_.push_back(info); + return true; +} + +bool Reader::good() const { return errors_.empty(); } + +// Originally copied from the Features class (now deprecated), used internally +// for features implementation. +class OurFeatures { +public: + static OurFeatures all(); + bool allowComments_; + bool allowTrailingCommas_; + bool strictRoot_; + bool allowDroppedNullPlaceholders_; + bool allowNumericKeys_; + bool allowSingleQuotes_; + bool failIfExtra_; + bool rejectDupKeys_; + bool allowSpecialFloats_; + bool skipBom_; + size_t stackLimit_; +}; // OurFeatures + +OurFeatures OurFeatures::all() { return {}; } + +// Implementation of class Reader +// //////////////////////////////// + +// Originally copied from the Reader class (now deprecated), used internally +// for implementing JSON reading. +class OurReader { +public: + using Char = char; + using Location = const Char*; + struct StructuredError { + ptrdiff_t offset_start; + ptrdiff_t offset_limit; + String message; + }; + + explicit OurReader(OurFeatures const& features); + bool parse(const char* beginDoc, const char* endDoc, Value& root, + bool collectComments = true); + String getFormattedErrorMessages() const; + std::vector getStructuredErrors() const; + +private: + OurReader(OurReader const&); // no impl + void operator=(OurReader const&); // no impl + + enum TokenType { + tokenEndOfStream = 0, + tokenObjectBegin, + tokenObjectEnd, + tokenArrayBegin, + tokenArrayEnd, + tokenString, + tokenNumber, + tokenTrue, + tokenFalse, + tokenNull, + tokenNaN, + tokenPosInf, + tokenNegInf, + tokenArraySeparator, + tokenMemberSeparator, + tokenComment, + tokenError + }; + + class Token { + public: + TokenType type_; + Location start_; + Location end_; + }; + + class ErrorInfo { + public: + Token token_; + String message_; + Location extra_; + }; + + using Errors = std::deque; + + bool readToken(Token& token); + void skipSpaces(); + void skipBom(bool skipBom); + bool match(const Char* pattern, int patternLength); + bool readComment(); + bool readCStyleComment(bool* containsNewLineResult); + bool readCppStyleComment(); + bool readString(); + bool readStringSingleQuote(); + bool readNumber(bool checkInf); + bool readValue(); + bool readObject(Token& token); + bool readArray(Token& token); + bool decodeNumber(Token& token); + bool decodeNumber(Token& token, Value& decoded); + bool decodeString(Token& token); + bool decodeString(Token& token, String& decoded); + bool decodeDouble(Token& token); + bool decodeDouble(Token& token, Value& decoded); + bool decodeUnicodeCodePoint(Token& token, Location& current, Location end, + unsigned int& unicode); + bool decodeUnicodeEscapeSequence(Token& token, Location& current, + Location end, unsigned int& unicode); + bool addError(const String& message, Token& token, Location extra = nullptr); + bool recoverFromError(TokenType skipUntilToken); + bool addErrorAndRecover(const String& message, Token& token, + TokenType skipUntilToken); + void skipUntilSpace(); + Value& currentValue(); + Char getNextChar(); + void getLocationLineAndColumn(Location location, int& line, + int& column) const; + String getLocationLineAndColumn(Location location) const; + void addComment(Location begin, Location end, CommentPlacement placement); + void skipCommentTokens(Token& token); + + static String normalizeEOL(Location begin, Location end); + static bool containsNewLine(Location begin, Location end); + + using Nodes = std::stack; + + Nodes nodes_{}; + Errors errors_{}; + String document_{}; + Location begin_ = nullptr; + Location end_ = nullptr; + Location current_ = nullptr; + Location lastValueEnd_ = nullptr; + Value* lastValue_ = nullptr; + bool lastValueHasAComment_ = false; + String commentsBefore_{}; + + OurFeatures const features_; + bool collectComments_ = false; +}; // OurReader + +// complete copy of Read impl, for OurReader + +bool OurReader::containsNewLine(OurReader::Location begin, + OurReader::Location end) { + return std::any_of(begin, end, [](char b) { return b == '\n' || b == '\r'; }); +} + +OurReader::OurReader(OurFeatures const& features) : features_(features) {} + +bool OurReader::parse(const char* beginDoc, const char* endDoc, Value& root, + bool collectComments) { + if (!features_.allowComments_) { + collectComments = false; + } + + begin_ = beginDoc; + end_ = endDoc; + collectComments_ = collectComments; + current_ = begin_; + lastValueEnd_ = nullptr; + lastValue_ = nullptr; + commentsBefore_.clear(); + errors_.clear(); + while (!nodes_.empty()) + nodes_.pop(); + nodes_.push(&root); + + // skip byte order mark if it exists at the beginning of the UTF-8 text. + skipBom(features_.skipBom_); + bool successful = readValue(); + nodes_.pop(); + Token token; + skipCommentTokens(token); + if (features_.failIfExtra_ && (token.type_ != tokenEndOfStream)) { + addError("Extra non-whitespace after JSON value.", token); + return false; + } + if (collectComments_ && !commentsBefore_.empty()) + root.setComment(commentsBefore_, commentAfter); + if (features_.strictRoot_) { + if (!root.isArray() && !root.isObject()) { + // Set error location to start of doc, ideally should be first token found + // in doc + token.type_ = tokenError; + token.start_ = beginDoc; + token.end_ = endDoc; + addError( + "A valid JSON document must be either an array or an object value.", + token); + return false; + } + } + return successful; +} + +bool OurReader::readValue() { + // To preserve the old behaviour we cast size_t to int. + if (nodes_.size() > features_.stackLimit_) + throwRuntimeError("Exceeded stackLimit in readValue()."); + Token token; + skipCommentTokens(token); + bool successful = true; + + if (collectComments_ && !commentsBefore_.empty()) { + currentValue().setComment(commentsBefore_, commentBefore); + commentsBefore_.clear(); + } + + switch (token.type_) { + case tokenObjectBegin: + successful = readObject(token); + currentValue().setOffsetLimit(current_ - begin_); + break; + case tokenArrayBegin: + successful = readArray(token); + currentValue().setOffsetLimit(current_ - begin_); + break; + case tokenNumber: + successful = decodeNumber(token); + break; + case tokenString: + successful = decodeString(token); + break; + case tokenTrue: { + Value v(true); + currentValue().swapPayload(v); + currentValue().setOffsetStart(token.start_ - begin_); + currentValue().setOffsetLimit(token.end_ - begin_); + } break; + case tokenFalse: { + Value v(false); + currentValue().swapPayload(v); + currentValue().setOffsetStart(token.start_ - begin_); + currentValue().setOffsetLimit(token.end_ - begin_); + } break; + case tokenNull: { + Value v; + currentValue().swapPayload(v); + currentValue().setOffsetStart(token.start_ - begin_); + currentValue().setOffsetLimit(token.end_ - begin_); + } break; + case tokenNaN: { + Value v(std::numeric_limits::quiet_NaN()); + currentValue().swapPayload(v); + currentValue().setOffsetStart(token.start_ - begin_); + currentValue().setOffsetLimit(token.end_ - begin_); + } break; + case tokenPosInf: { + Value v(std::numeric_limits::infinity()); + currentValue().swapPayload(v); + currentValue().setOffsetStart(token.start_ - begin_); + currentValue().setOffsetLimit(token.end_ - begin_); + } break; + case tokenNegInf: { + Value v(-std::numeric_limits::infinity()); + currentValue().swapPayload(v); + currentValue().setOffsetStart(token.start_ - begin_); + currentValue().setOffsetLimit(token.end_ - begin_); + } break; + case tokenArraySeparator: + case tokenObjectEnd: + case tokenArrayEnd: + if (features_.allowDroppedNullPlaceholders_) { + // "Un-read" the current token and mark the current value as a null + // token. + current_--; + Value v; + currentValue().swapPayload(v); + currentValue().setOffsetStart(current_ - begin_ - 1); + currentValue().setOffsetLimit(current_ - begin_); + break; + } // else, fall through ... + default: + currentValue().setOffsetStart(token.start_ - begin_); + currentValue().setOffsetLimit(token.end_ - begin_); + return addError("Syntax error: value, object or array expected.", token); + } + + if (collectComments_) { + lastValueEnd_ = current_; + lastValueHasAComment_ = false; + lastValue_ = ¤tValue(); + } + + return successful; +} + +void OurReader::skipCommentTokens(Token& token) { + if (features_.allowComments_) { + do { + readToken(token); + } while (token.type_ == tokenComment); + } else { + readToken(token); + } +} + +bool OurReader::readToken(Token& token) { + skipSpaces(); + token.start_ = current_; + Char c = getNextChar(); + bool ok = true; + switch (c) { + case '{': + token.type_ = tokenObjectBegin; + break; + case '}': + token.type_ = tokenObjectEnd; + break; + case '[': + token.type_ = tokenArrayBegin; + break; + case ']': + token.type_ = tokenArrayEnd; + break; + case '"': + token.type_ = tokenString; + ok = readString(); + break; + case '\'': + if (features_.allowSingleQuotes_) { + token.type_ = tokenString; + ok = readStringSingleQuote(); + } else { + // If we don't allow single quotes, this is a failure case. + ok = false; + } + break; + case '/': + token.type_ = tokenComment; + ok = readComment(); + break; + case '0': + case '1': + case '2': + case '3': + case '4': + case '5': + case '6': + case '7': + case '8': + case '9': + token.type_ = tokenNumber; + readNumber(false); + break; + case '-': + if (readNumber(true)) { + token.type_ = tokenNumber; + } else { + token.type_ = tokenNegInf; + ok = features_.allowSpecialFloats_ && match("nfinity", 7); + } + break; + case '+': + if (readNumber(true)) { + token.type_ = tokenNumber; + } else { + token.type_ = tokenPosInf; + ok = features_.allowSpecialFloats_ && match("nfinity", 7); + } + break; + case 't': + token.type_ = tokenTrue; + ok = match("rue", 3); + break; + case 'f': + token.type_ = tokenFalse; + ok = match("alse", 4); + break; + case 'n': + token.type_ = tokenNull; + ok = match("ull", 3); + break; + case 'N': + if (features_.allowSpecialFloats_) { + token.type_ = tokenNaN; + ok = match("aN", 2); + } else { + ok = false; + } + break; + case 'I': + if (features_.allowSpecialFloats_) { + token.type_ = tokenPosInf; + ok = match("nfinity", 7); + } else { + ok = false; + } + break; + case ',': + token.type_ = tokenArraySeparator; + break; + case ':': + token.type_ = tokenMemberSeparator; + break; + case 0: + token.type_ = tokenEndOfStream; + break; + default: + ok = false; + break; + } + if (!ok) + token.type_ = tokenError; + token.end_ = current_; + return ok; +} + +void OurReader::skipSpaces() { + while (current_ != end_) { + Char c = *current_; + if (c == ' ' || c == '\t' || c == '\r' || c == '\n') + ++current_; + else + break; + } +} + +void OurReader::skipBom(bool skipBom) { + // The default behavior is to skip BOM. + if (skipBom) { + if ((end_ - begin_) >= 3 && strncmp(begin_, "\xEF\xBB\xBF", 3) == 0) { + begin_ += 3; + current_ = begin_; + } + } +} + +bool OurReader::match(const Char* pattern, int patternLength) { + if (end_ - current_ < patternLength) + return false; + int index = patternLength; + while (index--) + if (current_[index] != pattern[index]) + return false; + current_ += patternLength; + return true; +} + +bool OurReader::readComment() { + const Location commentBegin = current_ - 1; + const Char c = getNextChar(); + bool successful = false; + bool cStyleWithEmbeddedNewline = false; + + const bool isCStyleComment = (c == '*'); + const bool isCppStyleComment = (c == '/'); + if (isCStyleComment) { + successful = readCStyleComment(&cStyleWithEmbeddedNewline); + } else if (isCppStyleComment) { + successful = readCppStyleComment(); + } + + if (!successful) + return false; + + if (collectComments_) { + CommentPlacement placement = commentBefore; + + if (!lastValueHasAComment_) { + if (lastValueEnd_ && !containsNewLine(lastValueEnd_, commentBegin)) { + if (isCppStyleComment || !cStyleWithEmbeddedNewline) { + placement = commentAfterOnSameLine; + lastValueHasAComment_ = true; + } + } + } + + addComment(commentBegin, current_, placement); + } + return true; +} + +String OurReader::normalizeEOL(OurReader::Location begin, + OurReader::Location end) { + String normalized; + normalized.reserve(static_cast(end - begin)); + OurReader::Location current = begin; + while (current != end) { + char c = *current++; + if (c == '\r') { + if (current != end && *current == '\n') + // convert dos EOL + ++current; + // convert Mac EOL + normalized += '\n'; + } else { + normalized += c; + } + } + return normalized; +} + +void OurReader::addComment(Location begin, Location end, + CommentPlacement placement) { + assert(collectComments_); + const String& normalized = normalizeEOL(begin, end); + if (placement == commentAfterOnSameLine) { + assert(lastValue_ != nullptr); + lastValue_->setComment(normalized, placement); + } else { + commentsBefore_ += normalized; + } +} + +bool OurReader::readCStyleComment(bool* containsNewLineResult) { + *containsNewLineResult = false; + + while ((current_ + 1) < end_) { + Char c = getNextChar(); + if (c == '*' && *current_ == '/') + break; + if (c == '\n') + *containsNewLineResult = true; + } + + return getNextChar() == '/'; +} + +bool OurReader::readCppStyleComment() { + while (current_ != end_) { + Char c = getNextChar(); + if (c == '\n') + break; + if (c == '\r') { + // Consume DOS EOL. It will be normalized in addComment. + if (current_ != end_ && *current_ == '\n') + getNextChar(); + // Break on Moc OS 9 EOL. + break; + } + } + return true; +} + +bool OurReader::readNumber(bool checkInf) { + Location p = current_; + if (checkInf && p != end_ && *p == 'I') { + current_ = ++p; + return false; + } + char c = '0'; // stopgap for already consumed character + // integral part + while (c >= '0' && c <= '9') + c = (current_ = p) < end_ ? *p++ : '\0'; + // fractional part + if (c == '.') { + c = (current_ = p) < end_ ? *p++ : '\0'; + while (c >= '0' && c <= '9') + c = (current_ = p) < end_ ? *p++ : '\0'; + } + // exponential part + if (c == 'e' || c == 'E') { + c = (current_ = p) < end_ ? *p++ : '\0'; + if (c == '+' || c == '-') + c = (current_ = p) < end_ ? *p++ : '\0'; + while (c >= '0' && c <= '9') + c = (current_ = p) < end_ ? *p++ : '\0'; + } + return true; +} +bool OurReader::readString() { + Char c = 0; + while (current_ != end_) { + c = getNextChar(); + if (c == '\\') + getNextChar(); + else if (c == '"') + break; + } + return c == '"'; +} + +bool OurReader::readStringSingleQuote() { + Char c = 0; + while (current_ != end_) { + c = getNextChar(); + if (c == '\\') + getNextChar(); + else if (c == '\'') + break; + } + return c == '\''; +} + +bool OurReader::readObject(Token& token) { + Token tokenName; + String name; + Value init(objectValue); + currentValue().swapPayload(init); + currentValue().setOffsetStart(token.start_ - begin_); + while (readToken(tokenName)) { + bool initialTokenOk = true; + while (tokenName.type_ == tokenComment && initialTokenOk) + initialTokenOk = readToken(tokenName); + if (!initialTokenOk) + break; + if (tokenName.type_ == tokenObjectEnd && + (name.empty() || + features_.allowTrailingCommas_)) // empty object or trailing comma + return true; + name.clear(); + if (tokenName.type_ == tokenString) { + if (!decodeString(tokenName, name)) + return recoverFromError(tokenObjectEnd); + } else if (tokenName.type_ == tokenNumber && features_.allowNumericKeys_) { + Value numberName; + if (!decodeNumber(tokenName, numberName)) + return recoverFromError(tokenObjectEnd); + name = numberName.asString(); + } else { + break; + } + if (name.length() >= (1U << 30)) + throwRuntimeError("keylength >= 2^30"); + if (features_.rejectDupKeys_ && currentValue().isMember(name)) { + String msg = "Duplicate key: '" + name + "'"; + return addErrorAndRecover(msg, tokenName, tokenObjectEnd); + } + + Token colon; + if (!readToken(colon) || colon.type_ != tokenMemberSeparator) { + return addErrorAndRecover("Missing ':' after object member name", colon, + tokenObjectEnd); + } + Value& value = currentValue()[name]; + nodes_.push(&value); + bool ok = readValue(); + nodes_.pop(); + if (!ok) // error already set + return recoverFromError(tokenObjectEnd); + + Token comma; + if (!readToken(comma) || + (comma.type_ != tokenObjectEnd && comma.type_ != tokenArraySeparator && + comma.type_ != tokenComment)) { + return addErrorAndRecover("Missing ',' or '}' in object declaration", + comma, tokenObjectEnd); + } + bool finalizeTokenOk = true; + while (comma.type_ == tokenComment && finalizeTokenOk) + finalizeTokenOk = readToken(comma); + if (comma.type_ == tokenObjectEnd) + return true; + } + return addErrorAndRecover("Missing '}' or object member name", tokenName, + tokenObjectEnd); +} + +bool OurReader::readArray(Token& token) { + Value init(arrayValue); + currentValue().swapPayload(init); + currentValue().setOffsetStart(token.start_ - begin_); + int index = 0; + for (;;) { + skipSpaces(); + if (current_ != end_ && *current_ == ']' && + (index == 0 || + (features_.allowTrailingCommas_ && + !features_.allowDroppedNullPlaceholders_))) // empty array or trailing + // comma + { + Token endArray; + readToken(endArray); + return true; + } + Value& value = currentValue()[index++]; + nodes_.push(&value); + bool ok = readValue(); + nodes_.pop(); + if (!ok) // error already set + return recoverFromError(tokenArrayEnd); + + Token currentToken; + // Accept Comment after last item in the array. + ok = readToken(currentToken); + while (currentToken.type_ == tokenComment && ok) { + ok = readToken(currentToken); + } + bool badTokenType = (currentToken.type_ != tokenArraySeparator && + currentToken.type_ != tokenArrayEnd); + if (!ok || badTokenType) { + return addErrorAndRecover("Missing ',' or ']' in array declaration", + currentToken, tokenArrayEnd); + } + if (currentToken.type_ == tokenArrayEnd) + break; + } + return true; +} + +bool OurReader::decodeNumber(Token& token) { + Value decoded; + if (!decodeNumber(token, decoded)) + return false; + currentValue().swapPayload(decoded); + currentValue().setOffsetStart(token.start_ - begin_); + currentValue().setOffsetLimit(token.end_ - begin_); + return true; +} + +bool OurReader::decodeNumber(Token& token, Value& decoded) { + // Attempts to parse the number as an integer. If the number is + // larger than the maximum supported value of an integer then + // we decode the number as a double. + Location current = token.start_; + const bool isNegative = *current == '-'; + if (isNegative) { + ++current; + } + + // We assume we can represent the largest and smallest integer types as + // unsigned integers with separate sign. This is only true if they can fit + // into an unsigned integer. + static_assert(Value::maxLargestInt <= Value::maxLargestUInt, + "Int must be smaller than UInt"); + + // We need to convert minLargestInt into a positive number. The easiest way + // to do this conversion is to assume our "threshold" value of minLargestInt + // divided by 10 can fit in maxLargestInt when absolute valued. This should + // be a safe assumption. + static_assert(Value::minLargestInt <= -Value::maxLargestInt, + "The absolute value of minLargestInt must be greater than or " + "equal to maxLargestInt"); + static_assert(Value::minLargestInt / 10 >= -Value::maxLargestInt, + "The absolute value of minLargestInt must be only 1 magnitude " + "larger than maxLargest Int"); + + static constexpr Value::LargestUInt positive_threshold = + Value::maxLargestUInt / 10; + static constexpr Value::UInt positive_last_digit = Value::maxLargestUInt % 10; + + // For the negative values, we have to be more careful. Since typically + // -Value::minLargestInt will cause an overflow, we first divide by 10 and + // then take the inverse. This assumes that minLargestInt is only a single + // power of 10 different in magnitude, which we check above. For the last + // digit, we take the modulus before negating for the same reason. + static constexpr auto negative_threshold = + Value::LargestUInt(-(Value::minLargestInt / 10)); + static constexpr auto negative_last_digit = + Value::UInt(-(Value::minLargestInt % 10)); + + const Value::LargestUInt threshold = + isNegative ? negative_threshold : positive_threshold; + const Value::UInt max_last_digit = + isNegative ? negative_last_digit : positive_last_digit; + + Value::LargestUInt value = 0; + while (current < token.end_) { + Char c = *current++; + if (c < '0' || c > '9') + return decodeDouble(token, decoded); + + const auto digit(static_cast(c - '0')); + if (value >= threshold) { + // We've hit or exceeded the max value divided by 10 (rounded down). If + // a) we've only just touched the limit, meaing value == threshold, + // b) this is the last digit, or + // c) it's small enough to fit in that rounding delta, we're okay. + // Otherwise treat this number as a double to avoid overflow. + if (value > threshold || current != token.end_ || + digit > max_last_digit) { + return decodeDouble(token, decoded); + } + } + value = value * 10 + digit; + } + + if (isNegative) { + // We use the same magnitude assumption here, just in case. + const auto last_digit = static_cast(value % 10); + decoded = -Value::LargestInt(value / 10) * 10 - last_digit; + } else if (value <= Value::LargestUInt(Value::maxLargestInt)) { + decoded = Value::LargestInt(value); + } else { + decoded = value; + } + + return true; +} + +bool OurReader::decodeDouble(Token& token) { + Value decoded; + if (!decodeDouble(token, decoded)) + return false; + currentValue().swapPayload(decoded); + currentValue().setOffsetStart(token.start_ - begin_); + currentValue().setOffsetLimit(token.end_ - begin_); + return true; +} + +bool OurReader::decodeDouble(Token& token, Value& decoded) { + double value = 0; + const String buffer(token.start_, token.end_); + IStringStream is(buffer); + if (!(is >> value)) { + return addError( + "'" + String(token.start_, token.end_) + "' is not a number.", token); + } + decoded = value; + return true; +} + +bool OurReader::decodeString(Token& token) { + String decoded_string; + if (!decodeString(token, decoded_string)) + return false; + Value decoded(decoded_string); + currentValue().swapPayload(decoded); + currentValue().setOffsetStart(token.start_ - begin_); + currentValue().setOffsetLimit(token.end_ - begin_); + return true; +} + +bool OurReader::decodeString(Token& token, String& decoded) { + decoded.reserve(static_cast(token.end_ - token.start_ - 2)); + Location current = token.start_ + 1; // skip '"' + Location end = token.end_ - 1; // do not include '"' + while (current != end) { + Char c = *current++; + if (c == '"') + break; + if (c == '\\') { + if (current == end) + return addError("Empty escape sequence in string", token, current); + Char escape = *current++; + switch (escape) { + case '"': + decoded += '"'; + break; + case '/': + decoded += '/'; + break; + case '\\': + decoded += '\\'; + break; + case 'b': + decoded += '\b'; + break; + case 'f': + decoded += '\f'; + break; + case 'n': + decoded += '\n'; + break; + case 'r': + decoded += '\r'; + break; + case 't': + decoded += '\t'; + break; + case 'u': { + unsigned int unicode; + if (!decodeUnicodeCodePoint(token, current, end, unicode)) + return false; + decoded += codePointToUTF8(unicode); + } break; + default: + return addError("Bad escape sequence in string", token, current); + } + } else { + decoded += c; + } + } + return true; +} + +bool OurReader::decodeUnicodeCodePoint(Token& token, Location& current, + Location end, unsigned int& unicode) { + + if (!decodeUnicodeEscapeSequence(token, current, end, unicode)) + return false; + if (unicode >= 0xD800 && unicode <= 0xDBFF) { + // surrogate pairs + if (end - current < 6) + return addError( + "additional six characters expected to parse unicode surrogate pair.", + token, current); + if (*(current++) == '\\' && *(current++) == 'u') { + unsigned int surrogatePair; + if (decodeUnicodeEscapeSequence(token, current, end, surrogatePair)) { + unicode = 0x10000 + ((unicode & 0x3FF) << 10) + (surrogatePair & 0x3FF); + } else + return false; + } else + return addError("expecting another \\u token to begin the second half of " + "a unicode surrogate pair", + token, current); + } + return true; +} + +bool OurReader::decodeUnicodeEscapeSequence(Token& token, Location& current, + Location end, + unsigned int& ret_unicode) { + if (end - current < 4) + return addError( + "Bad unicode escape sequence in string: four digits expected.", token, + current); + int unicode = 0; + for (int index = 0; index < 4; ++index) { + Char c = *current++; + unicode *= 16; + if (c >= '0' && c <= '9') + unicode += c - '0'; + else if (c >= 'a' && c <= 'f') + unicode += c - 'a' + 10; + else if (c >= 'A' && c <= 'F') + unicode += c - 'A' + 10; + else + return addError( + "Bad unicode escape sequence in string: hexadecimal digit expected.", + token, current); + } + ret_unicode = static_cast(unicode); + return true; +} + +bool OurReader::addError(const String& message, Token& token, Location extra) { + ErrorInfo info; + info.token_ = token; + info.message_ = message; + info.extra_ = extra; + errors_.push_back(info); + return false; +} + +bool OurReader::recoverFromError(TokenType skipUntilToken) { + size_t errorCount = errors_.size(); + Token skip; + for (;;) { + if (!readToken(skip)) + errors_.resize(errorCount); // discard errors caused by recovery + if (skip.type_ == skipUntilToken || skip.type_ == tokenEndOfStream) + break; + } + errors_.resize(errorCount); + return false; +} + +bool OurReader::addErrorAndRecover(const String& message, Token& token, + TokenType skipUntilToken) { + addError(message, token); + return recoverFromError(skipUntilToken); +} + +Value& OurReader::currentValue() { return *(nodes_.top()); } + +OurReader::Char OurReader::getNextChar() { + if (current_ == end_) + return 0; + return *current_++; +} + +void OurReader::getLocationLineAndColumn(Location location, int& line, + int& column) const { + Location current = begin_; + Location lastLineStart = current; + line = 0; + while (current < location && current != end_) { + Char c = *current++; + if (c == '\r') { + if (*current == '\n') + ++current; + lastLineStart = current; + ++line; + } else if (c == '\n') { + lastLineStart = current; + ++line; + } + } + // column & line start at 1 + column = int(location - lastLineStart) + 1; + ++line; +} + +String OurReader::getLocationLineAndColumn(Location location) const { + int line, column; + getLocationLineAndColumn(location, line, column); + char buffer[18 + 16 + 16 + 1]; + jsoncpp_snprintf(buffer, sizeof(buffer), "Line %d, Column %d", line, column); + return buffer; +} + +String OurReader::getFormattedErrorMessages() const { + String formattedMessage; + for (const auto& error : errors_) { + formattedMessage += + "* " + getLocationLineAndColumn(error.token_.start_) + "\n"; + formattedMessage += " " + error.message_ + "\n"; + if (error.extra_) + formattedMessage += + "See " + getLocationLineAndColumn(error.extra_) + " for detail.\n"; + } + return formattedMessage; +} + +std::vector OurReader::getStructuredErrors() const { + std::vector allErrors; + for (const auto& error : errors_) { + OurReader::StructuredError structured; + structured.offset_start = error.token_.start_ - begin_; + structured.offset_limit = error.token_.end_ - begin_; + structured.message = error.message_; + allErrors.push_back(structured); + } + return allErrors; +} + +class OurCharReader : public CharReader { + bool const collectComments_; + OurReader reader_; + +public: + OurCharReader(bool collectComments, OurFeatures const& features) + : collectComments_(collectComments), reader_(features) {} + bool parse(char const* beginDoc, char const* endDoc, Value* root, + String* errs) override { + bool ok = reader_.parse(beginDoc, endDoc, *root, collectComments_); + if (errs) { + *errs = reader_.getFormattedErrorMessages(); + } + return ok; + } +}; + +CharReaderBuilder::CharReaderBuilder() { setDefaults(&settings_); } +CharReaderBuilder::~CharReaderBuilder() = default; +CharReader* CharReaderBuilder::newCharReader() const { + bool collectComments = settings_["collectComments"].asBool(); + OurFeatures features = OurFeatures::all(); + features.allowComments_ = settings_["allowComments"].asBool(); + features.allowTrailingCommas_ = settings_["allowTrailingCommas"].asBool(); + features.strictRoot_ = settings_["strictRoot"].asBool(); + features.allowDroppedNullPlaceholders_ = + settings_["allowDroppedNullPlaceholders"].asBool(); + features.allowNumericKeys_ = settings_["allowNumericKeys"].asBool(); + features.allowSingleQuotes_ = settings_["allowSingleQuotes"].asBool(); + + // Stack limit is always a size_t, so we get this as an unsigned int + // regardless of it we have 64-bit integer support enabled. + features.stackLimit_ = static_cast(settings_["stackLimit"].asUInt()); + features.failIfExtra_ = settings_["failIfExtra"].asBool(); + features.rejectDupKeys_ = settings_["rejectDupKeys"].asBool(); + features.allowSpecialFloats_ = settings_["allowSpecialFloats"].asBool(); + features.skipBom_ = settings_["skipBom"].asBool(); + return new OurCharReader(collectComments, features); +} + +bool CharReaderBuilder::validate(Json::Value* invalid) const { + static const auto& valid_keys = *new std::set{ + "collectComments", + "allowComments", + "allowTrailingCommas", + "strictRoot", + "allowDroppedNullPlaceholders", + "allowNumericKeys", + "allowSingleQuotes", + "stackLimit", + "failIfExtra", + "rejectDupKeys", + "allowSpecialFloats", + "skipBom", + }; + for (auto si = settings_.begin(); si != settings_.end(); ++si) { + auto key = si.name(); + if (valid_keys.count(key)) + continue; + if (invalid) + (*invalid)[key] = *si; + else + return false; + } + return invalid ? invalid->empty() : true; +} + +Value& CharReaderBuilder::operator[](const String& key) { + return settings_[key]; +} +// static +void CharReaderBuilder::strictMode(Json::Value* settings) { + //! [CharReaderBuilderStrictMode] + (*settings)["allowComments"] = false; + (*settings)["allowTrailingCommas"] = false; + (*settings)["strictRoot"] = true; + (*settings)["allowDroppedNullPlaceholders"] = false; + (*settings)["allowNumericKeys"] = false; + (*settings)["allowSingleQuotes"] = false; + (*settings)["stackLimit"] = 1000; + (*settings)["failIfExtra"] = true; + (*settings)["rejectDupKeys"] = true; + (*settings)["allowSpecialFloats"] = false; + (*settings)["skipBom"] = true; + //! [CharReaderBuilderStrictMode] +} +// static +void CharReaderBuilder::setDefaults(Json::Value* settings) { + //! [CharReaderBuilderDefaults] + (*settings)["collectComments"] = true; + (*settings)["allowComments"] = true; + (*settings)["allowTrailingCommas"] = true; + (*settings)["strictRoot"] = false; + (*settings)["allowDroppedNullPlaceholders"] = false; + (*settings)["allowNumericKeys"] = false; + (*settings)["allowSingleQuotes"] = false; + (*settings)["stackLimit"] = 1000; + (*settings)["failIfExtra"] = false; + (*settings)["rejectDupKeys"] = false; + (*settings)["allowSpecialFloats"] = false; + (*settings)["skipBom"] = true; + //! [CharReaderBuilderDefaults] +} + +////////////////////////////////// +// global functions + +bool parseFromStream(CharReader::Factory const& fact, IStream& sin, Value* root, + String* errs) { + OStringStream ssin; + ssin << sin.rdbuf(); + String doc = ssin.str(); + char const* begin = doc.data(); + char const* end = begin + doc.size(); + // Note that we do not actually need a null-terminator. + CharReaderPtr const reader(fact.newCharReader()); + return reader->parse(begin, end, root, errs); +} + +IStream& operator>>(IStream& sin, Value& root) { + CharReaderBuilder b; + String errs; + bool ok = parseFromStream(b, sin, &root, &errs); + if (!ok) { + throwRuntimeError(errs); + } + return sin; +} + +} // namespace Json diff --git a/toolkit/components/jsoncpp/src/lib_json/json_tool.h b/toolkit/components/jsoncpp/src/lib_json/json_tool.h new file mode 100644 index 0000000000..b952c19167 --- /dev/null +++ b/toolkit/components/jsoncpp/src/lib_json/json_tool.h @@ -0,0 +1,138 @@ +// Copyright 2007-2010 Baptiste Lepilleur and The JsonCpp Authors +// Distributed under MIT license, or public domain if desired and +// recognized in your jurisdiction. +// See file LICENSE for detail or copy at http://jsoncpp.sourceforge.net/LICENSE + +#ifndef LIB_JSONCPP_JSON_TOOL_H_INCLUDED +#define LIB_JSONCPP_JSON_TOOL_H_INCLUDED + +#if !defined(JSON_IS_AMALGAMATION) +#include +#endif + +// Also support old flag NO_LOCALE_SUPPORT +#ifdef NO_LOCALE_SUPPORT +#define JSONCPP_NO_LOCALE_SUPPORT +#endif + +#ifndef JSONCPP_NO_LOCALE_SUPPORT +#include +#endif + +/* This header provides common string manipulation support, such as UTF-8, + * portable conversion from/to string... + * + * It is an internal header that must not be exposed. + */ + +namespace Json { +static inline char getDecimalPoint() { +#ifdef JSONCPP_NO_LOCALE_SUPPORT + return '\0'; +#else + struct lconv* lc = localeconv(); + return lc ? *(lc->decimal_point) : '\0'; +#endif +} + +/// Converts a unicode code-point to UTF-8. +static inline String codePointToUTF8(unsigned int cp) { + String result; + + // based on description from http://en.wikipedia.org/wiki/UTF-8 + + if (cp <= 0x7f) { + result.resize(1); + result[0] = static_cast(cp); + } else if (cp <= 0x7FF) { + result.resize(2); + result[1] = static_cast(0x80 | (0x3f & cp)); + result[0] = static_cast(0xC0 | (0x1f & (cp >> 6))); + } else if (cp <= 0xFFFF) { + result.resize(3); + result[2] = static_cast(0x80 | (0x3f & cp)); + result[1] = static_cast(0x80 | (0x3f & (cp >> 6))); + result[0] = static_cast(0xE0 | (0xf & (cp >> 12))); + } else if (cp <= 0x10FFFF) { + result.resize(4); + result[3] = static_cast(0x80 | (0x3f & cp)); + result[2] = static_cast(0x80 | (0x3f & (cp >> 6))); + result[1] = static_cast(0x80 | (0x3f & (cp >> 12))); + result[0] = static_cast(0xF0 | (0x7 & (cp >> 18))); + } + + return result; +} + +enum { + /// Constant that specify the size of the buffer that must be passed to + /// uintToString. + uintToStringBufferSize = 3 * sizeof(LargestUInt) + 1 +}; + +// Defines a char buffer for use with uintToString(). +using UIntToStringBuffer = char[uintToStringBufferSize]; + +/** Converts an unsigned integer to string. + * @param value Unsigned integer to convert to string + * @param current Input/Output string buffer. + * Must have at least uintToStringBufferSize chars free. + */ +static inline void uintToString(LargestUInt value, char*& current) { + *--current = 0; + do { + *--current = static_cast(value % 10U + static_cast('0')); + value /= 10; + } while (value != 0); +} + +/** Change ',' to '.' everywhere in buffer. + * + * We had a sophisticated way, but it did not work in WinCE. + * @see https://github.com/open-source-parsers/jsoncpp/pull/9 + */ +template Iter fixNumericLocale(Iter begin, Iter end) { + for (; begin != end; ++begin) { + if (*begin == ',') { + *begin = '.'; + } + } + return begin; +} + +template void fixNumericLocaleInput(Iter begin, Iter end) { + char decimalPoint = getDecimalPoint(); + if (decimalPoint == '\0' || decimalPoint == '.') { + return; + } + for (; begin != end; ++begin) { + if (*begin == '.') { + *begin = decimalPoint; + } + } +} + +/** + * Return iterator that would be the new end of the range [begin,end), if we + * were to delete zeros in the end of string, but not the last zero before '.'. + */ +template +Iter fixZerosInTheEnd(Iter begin, Iter end, unsigned int precision) { + for (; begin != end; --end) { + if (*(end - 1) != '0') { + return end; + } + // Don't delete the last zero before the decimal point. + if (begin != (end - 1) && begin != (end - 2) && *(end - 2) == '.') { + if (precision) { + return end; + } + return end - 2; + } + } + return end; +} + +} // namespace Json + +#endif // LIB_JSONCPP_JSON_TOOL_H_INCLUDED diff --git a/toolkit/components/jsoncpp/src/lib_json/json_value.cpp b/toolkit/components/jsoncpp/src/lib_json/json_value.cpp new file mode 100644 index 0000000000..aa2b744ca8 --- /dev/null +++ b/toolkit/components/jsoncpp/src/lib_json/json_value.cpp @@ -0,0 +1,1634 @@ +// Copyright 2011 Baptiste Lepilleur and The JsonCpp Authors +// Distributed under MIT license, or public domain if desired and +// recognized in your jurisdiction. +// See file LICENSE for detail or copy at http://jsoncpp.sourceforge.net/LICENSE + +#if !defined(JSON_IS_AMALGAMATION) +#include +#include +#include +#endif // if !defined(JSON_IS_AMALGAMATION) +#include +#include +#include +#include +#include +#include +#include +#include + +// Provide implementation equivalent of std::snprintf for older _MSC compilers +#if defined(_MSC_VER) && _MSC_VER < 1900 +#include +static int msvc_pre1900_c99_vsnprintf(char* outBuf, size_t size, + const char* format, va_list ap) { + int count = -1; + if (size != 0) + count = _vsnprintf_s(outBuf, size, _TRUNCATE, format, ap); + if (count == -1) + count = _vscprintf(format, ap); + return count; +} + +int JSON_API msvc_pre1900_c99_snprintf(char* outBuf, size_t size, + const char* format, ...) { + va_list ap; + va_start(ap, format); + const int count = msvc_pre1900_c99_vsnprintf(outBuf, size, format, ap); + va_end(ap); + return count; +} +#endif + +// Disable warning C4702 : unreachable code +#if defined(_MSC_VER) +#pragma warning(disable : 4702) +#endif + +#define JSON_ASSERT_UNREACHABLE assert(false) + +namespace Json { +template +static std::unique_ptr cloneUnique(const std::unique_ptr& p) { + std::unique_ptr r; + if (p) { + r = std::unique_ptr(new T(*p)); + } + return r; +} + +// This is a walkaround to avoid the static initialization of Value::null. +// kNull must be word-aligned to avoid crashing on ARM. We use an alignment of +// 8 (instead of 4) as a bit of future-proofing. +#if defined(__ARMEL__) +#define ALIGNAS(byte_alignment) __attribute__((aligned(byte_alignment))) +#else +#define ALIGNAS(byte_alignment) +#endif + +// static +Value const& Value::nullSingleton() { + static Value const nullStatic; + return nullStatic; +} + +#if JSON_USE_NULLREF +// for backwards compatibility, we'll leave these global references around, but +// DO NOT use them in JSONCPP library code any more! +// static +Value const& Value::null = Value::nullSingleton(); + +// static +Value const& Value::nullRef = Value::nullSingleton(); +#endif + +#if !defined(JSON_USE_INT64_DOUBLE_CONVERSION) +template +static inline bool InRange(double d, T min, U max) { + // The casts can lose precision, but we are looking only for + // an approximate range. Might fail on edge cases though. ~cdunn + return d >= static_cast(min) && d <= static_cast(max); +} +#else // if !defined(JSON_USE_INT64_DOUBLE_CONVERSION) +static inline double integerToDouble(Json::UInt64 value) { + return static_cast(Int64(value / 2)) * 2.0 + + static_cast(Int64(value & 1)); +} + +template static inline double integerToDouble(T value) { + return static_cast(value); +} + +template +static inline bool InRange(double d, T min, U max) { + return d >= integerToDouble(min) && d <= integerToDouble(max); +} +#endif // if !defined(JSON_USE_INT64_DOUBLE_CONVERSION) + +/** Duplicates the specified string value. + * @param value Pointer to the string to duplicate. Must be zero-terminated if + * length is "unknown". + * @param length Length of the value. if equals to unknown, then it will be + * computed using strlen(value). + * @return Pointer on the duplicate instance of string. + */ +static inline char* duplicateStringValue(const char* value, size_t length) { + // Avoid an integer overflow in the call to malloc below by limiting length + // to a sane value. + if (length >= static_cast(Value::maxInt)) + length = Value::maxInt - 1; + + auto newString = static_cast(malloc(length + 1)); + if (newString == nullptr) { + throwRuntimeError("in Json::Value::duplicateStringValue(): " + "Failed to allocate string value buffer"); + } + memcpy(newString, value, length); + newString[length] = 0; + return newString; +} + +/* Record the length as a prefix. + */ +static inline char* duplicateAndPrefixStringValue(const char* value, + unsigned int length) { + // Avoid an integer overflow in the call to malloc below by limiting length + // to a sane value. + JSON_ASSERT_MESSAGE(length <= static_cast(Value::maxInt) - + sizeof(unsigned) - 1U, + "in Json::Value::duplicateAndPrefixStringValue(): " + "length too big for prefixing"); + size_t actualLength = sizeof(length) + length + 1; + auto newString = static_cast(malloc(actualLength)); + if (newString == nullptr) { + throwRuntimeError("in Json::Value::duplicateAndPrefixStringValue(): " + "Failed to allocate string value buffer"); + } + *reinterpret_cast(newString) = length; + memcpy(newString + sizeof(unsigned), value, length); + newString[actualLength - 1U] = + 0; // to avoid buffer over-run accidents by users later + return newString; +} +inline static void decodePrefixedString(bool isPrefixed, char const* prefixed, + unsigned* length, char const** value) { + if (!isPrefixed) { + *length = static_cast(strlen(prefixed)); + *value = prefixed; + } else { + *length = *reinterpret_cast(prefixed); + *value = prefixed + sizeof(unsigned); + } +} +/** Free the string duplicated by + * duplicateStringValue()/duplicateAndPrefixStringValue(). + */ +#if JSONCPP_USING_SECURE_MEMORY +static inline void releasePrefixedStringValue(char* value) { + unsigned length = 0; + char const* valueDecoded; + decodePrefixedString(true, value, &length, &valueDecoded); + size_t const size = sizeof(unsigned) + length + 1U; + memset(value, 0, size); + free(value); +} +static inline void releaseStringValue(char* value, unsigned length) { + // length==0 => we allocated the strings memory + size_t size = (length == 0) ? strlen(value) : length; + memset(value, 0, size); + free(value); +} +#else // !JSONCPP_USING_SECURE_MEMORY +static inline void releasePrefixedStringValue(char* value) { free(value); } +static inline void releaseStringValue(char* value, unsigned) { free(value); } +#endif // JSONCPP_USING_SECURE_MEMORY + +} // namespace Json + +// ////////////////////////////////////////////////////////////////// +// ////////////////////////////////////////////////////////////////// +// ////////////////////////////////////////////////////////////////// +// ValueInternals... +// ////////////////////////////////////////////////////////////////// +// ////////////////////////////////////////////////////////////////// +// ////////////////////////////////////////////////////////////////// +#if !defined(JSON_IS_AMALGAMATION) + +#include "json_valueiterator.inl" +#endif // if !defined(JSON_IS_AMALGAMATION) + +namespace Json { + +#if JSON_USE_EXCEPTION +Exception::Exception(String msg) : msg_(std::move(msg)) {} +Exception::~Exception() noexcept = default; +char const* Exception::what() const noexcept { return msg_.c_str(); } +RuntimeError::RuntimeError(String const& msg) : Exception(msg) {} +LogicError::LogicError(String const& msg) : Exception(msg) {} +JSONCPP_NORETURN void throwRuntimeError(String const& msg) { + throw RuntimeError(msg); +} +JSONCPP_NORETURN void throwLogicError(String const& msg) { + throw LogicError(msg); +} +#else // !JSON_USE_EXCEPTION +JSONCPP_NORETURN void throwRuntimeError(String const& msg) { + std::cerr << msg << std::endl; + abort(); +} +JSONCPP_NORETURN void throwLogicError(String const& msg) { + std::cerr << msg << std::endl; + abort(); +} +#endif + +// ////////////////////////////////////////////////////////////////// +// ////////////////////////////////////////////////////////////////// +// ////////////////////////////////////////////////////////////////// +// class Value::CZString +// ////////////////////////////////////////////////////////////////// +// ////////////////////////////////////////////////////////////////// +// ////////////////////////////////////////////////////////////////// + +// Notes: policy_ indicates if the string was allocated when +// a string is stored. + +Value::CZString::CZString(ArrayIndex index) : cstr_(nullptr), index_(index) {} + +Value::CZString::CZString(char const* str, unsigned length, + DuplicationPolicy allocate) + : cstr_(str) { + // allocate != duplicate + storage_.policy_ = allocate & 0x3; + storage_.length_ = length & 0x3FFFFFFF; +} + +Value::CZString::CZString(const CZString& other) { + cstr_ = (other.storage_.policy_ != noDuplication && other.cstr_ != nullptr + ? duplicateStringValue(other.cstr_, other.storage_.length_) + : other.cstr_); + storage_.policy_ = + static_cast( + other.cstr_ + ? (static_cast(other.storage_.policy_) == + noDuplication + ? noDuplication + : duplicate) + : static_cast(other.storage_.policy_)) & + 3U; + storage_.length_ = other.storage_.length_; +} + +Value::CZString::CZString(CZString&& other) noexcept + : cstr_(other.cstr_), index_(other.index_) { + other.cstr_ = nullptr; +} + +Value::CZString::~CZString() { + if (cstr_ && storage_.policy_ == duplicate) { + releaseStringValue(const_cast(cstr_), + storage_.length_ + 1U); // +1 for null terminating + // character for sake of + // completeness but not actually + // necessary + } +} + +void Value::CZString::swap(CZString& other) { + std::swap(cstr_, other.cstr_); + std::swap(index_, other.index_); +} + +Value::CZString& Value::CZString::operator=(const CZString& other) { + cstr_ = other.cstr_; + index_ = other.index_; + return *this; +} + +Value::CZString& Value::CZString::operator=(CZString&& other) noexcept { + cstr_ = other.cstr_; + index_ = other.index_; + other.cstr_ = nullptr; + return *this; +} + +bool Value::CZString::operator<(const CZString& other) const { + if (!cstr_) + return index_ < other.index_; + // return strcmp(cstr_, other.cstr_) < 0; + // Assume both are strings. + unsigned this_len = this->storage_.length_; + unsigned other_len = other.storage_.length_; + unsigned min_len = std::min(this_len, other_len); + JSON_ASSERT(this->cstr_ && other.cstr_); + int comp = memcmp(this->cstr_, other.cstr_, min_len); + if (comp < 0) + return true; + if (comp > 0) + return false; + return (this_len < other_len); +} + +bool Value::CZString::operator==(const CZString& other) const { + if (!cstr_) + return index_ == other.index_; + // return strcmp(cstr_, other.cstr_) == 0; + // Assume both are strings. + unsigned this_len = this->storage_.length_; + unsigned other_len = other.storage_.length_; + if (this_len != other_len) + return false; + JSON_ASSERT(this->cstr_ && other.cstr_); + int comp = memcmp(this->cstr_, other.cstr_, this_len); + return comp == 0; +} + +ArrayIndex Value::CZString::index() const { return index_; } + +// const char* Value::CZString::c_str() const { return cstr_; } +const char* Value::CZString::data() const { return cstr_; } +unsigned Value::CZString::length() const { return storage_.length_; } +bool Value::CZString::isStaticString() const { + return storage_.policy_ == noDuplication; +} + +// ////////////////////////////////////////////////////////////////// +// ////////////////////////////////////////////////////////////////// +// ////////////////////////////////////////////////////////////////// +// class Value::Value +// ////////////////////////////////////////////////////////////////// +// ////////////////////////////////////////////////////////////////// +// ////////////////////////////////////////////////////////////////// + +/*! \internal Default constructor initialization must be equivalent to: + * memset( this, 0, sizeof(Value) ) + * This optimization is used in ValueInternalMap fast allocator. + */ +Value::Value(ValueType type) { + static char const emptyString[] = ""; + initBasic(type); + switch (type) { + case nullValue: + break; + case intValue: + case uintValue: + value_.int_ = 0; + break; + case realValue: + value_.real_ = 0.0; + break; + case stringValue: + // allocated_ == false, so this is safe. + value_.string_ = const_cast(static_cast(emptyString)); + break; + case arrayValue: + case objectValue: + value_.map_ = new ObjectValues(); + break; + case booleanValue: + value_.bool_ = false; + break; + default: + JSON_ASSERT_UNREACHABLE; + } +} + +Value::Value(Int value) { + initBasic(intValue); + value_.int_ = value; +} + +Value::Value(UInt value) { + initBasic(uintValue); + value_.uint_ = value; +} +#if defined(JSON_HAS_INT64) +Value::Value(Int64 value) { + initBasic(intValue); + value_.int_ = value; +} +Value::Value(UInt64 value) { + initBasic(uintValue); + value_.uint_ = value; +} +#endif // defined(JSON_HAS_INT64) + +Value::Value(double value) { + initBasic(realValue); + value_.real_ = value; +} + +Value::Value(const char* value) { + initBasic(stringValue, true); + JSON_ASSERT_MESSAGE(value != nullptr, + "Null Value Passed to Value Constructor"); + value_.string_ = duplicateAndPrefixStringValue( + value, static_cast(strlen(value))); +} + +Value::Value(const char* begin, const char* end) { + initBasic(stringValue, true); + value_.string_ = + duplicateAndPrefixStringValue(begin, static_cast(end - begin)); +} + +Value::Value(const String& value) { + initBasic(stringValue, true); + value_.string_ = duplicateAndPrefixStringValue( + value.data(), static_cast(value.length())); +} + +Value::Value(const StaticString& value) { + initBasic(stringValue); + value_.string_ = const_cast(value.c_str()); +} + +Value::Value(bool value) { + initBasic(booleanValue); + value_.bool_ = value; +} + +Value::Value(const Value& other) { + dupPayload(other); + dupMeta(other); +} + +Value::Value(Value&& other) noexcept { + initBasic(nullValue); + swap(other); +} + +Value::~Value() { + releasePayload(); + value_.uint_ = 0; +} + +Value& Value::operator=(const Value& other) { + Value(other).swap(*this); + return *this; +} + +Value& Value::operator=(Value&& other) noexcept { + other.swap(*this); + return *this; +} + +void Value::swapPayload(Value& other) { + std::swap(bits_, other.bits_); + std::swap(value_, other.value_); +} + +void Value::copyPayload(const Value& other) { + releasePayload(); + dupPayload(other); +} + +void Value::swap(Value& other) { + swapPayload(other); + std::swap(comments_, other.comments_); + std::swap(start_, other.start_); + std::swap(limit_, other.limit_); +} + +void Value::copy(const Value& other) { + copyPayload(other); + dupMeta(other); +} + +ValueType Value::type() const { + return static_cast(bits_.value_type_); +} + +int Value::compare(const Value& other) const { + if (*this < other) + return -1; + if (*this > other) + return 1; + return 0; +} + +bool Value::operator<(const Value& other) const { + int typeDelta = type() - other.type(); + if (typeDelta) + return typeDelta < 0; + switch (type()) { + case nullValue: + return false; + case intValue: + return value_.int_ < other.value_.int_; + case uintValue: + return value_.uint_ < other.value_.uint_; + case realValue: + return value_.real_ < other.value_.real_; + case booleanValue: + return value_.bool_ < other.value_.bool_; + case stringValue: { + if ((value_.string_ == nullptr) || (other.value_.string_ == nullptr)) { + return other.value_.string_ != nullptr; + } + unsigned this_len; + unsigned other_len; + char const* this_str; + char const* other_str; + decodePrefixedString(this->isAllocated(), this->value_.string_, &this_len, + &this_str); + decodePrefixedString(other.isAllocated(), other.value_.string_, &other_len, + &other_str); + unsigned min_len = std::min(this_len, other_len); + JSON_ASSERT(this_str && other_str); + int comp = memcmp(this_str, other_str, min_len); + if (comp < 0) + return true; + if (comp > 0) + return false; + return (this_len < other_len); + } + case arrayValue: + case objectValue: { + auto thisSize = value_.map_->size(); + auto otherSize = other.value_.map_->size(); + if (thisSize != otherSize) + return thisSize < otherSize; + return (*value_.map_) < (*other.value_.map_); + } + default: + JSON_ASSERT_UNREACHABLE; + } + return false; // unreachable +} + +bool Value::operator<=(const Value& other) const { return !(other < *this); } + +bool Value::operator>=(const Value& other) const { return !(*this < other); } + +bool Value::operator>(const Value& other) const { return other < *this; } + +bool Value::operator==(const Value& other) const { + if (type() != other.type()) + return false; + switch (type()) { + case nullValue: + return true; + case intValue: + return value_.int_ == other.value_.int_; + case uintValue: + return value_.uint_ == other.value_.uint_; + case realValue: + return value_.real_ == other.value_.real_; + case booleanValue: + return value_.bool_ == other.value_.bool_; + case stringValue: { + if ((value_.string_ == nullptr) || (other.value_.string_ == nullptr)) { + return (value_.string_ == other.value_.string_); + } + unsigned this_len; + unsigned other_len; + char const* this_str; + char const* other_str; + decodePrefixedString(this->isAllocated(), this->value_.string_, &this_len, + &this_str); + decodePrefixedString(other.isAllocated(), other.value_.string_, &other_len, + &other_str); + if (this_len != other_len) + return false; + JSON_ASSERT(this_str && other_str); + int comp = memcmp(this_str, other_str, this_len); + return comp == 0; + } + case arrayValue: + case objectValue: + return value_.map_->size() == other.value_.map_->size() && + (*value_.map_) == (*other.value_.map_); + default: + JSON_ASSERT_UNREACHABLE; + } + return false; // unreachable +} + +bool Value::operator!=(const Value& other) const { return !(*this == other); } + +const char* Value::asCString() const { + JSON_ASSERT_MESSAGE(type() == stringValue, + "in Json::Value::asCString(): requires stringValue"); + if (value_.string_ == nullptr) + return nullptr; + unsigned this_len; + char const* this_str; + decodePrefixedString(this->isAllocated(), this->value_.string_, &this_len, + &this_str); + return this_str; +} + +#if JSONCPP_USING_SECURE_MEMORY +unsigned Value::getCStringLength() const { + JSON_ASSERT_MESSAGE(type() == stringValue, + "in Json::Value::asCString(): requires stringValue"); + if (value_.string_ == 0) + return 0; + unsigned this_len; + char const* this_str; + decodePrefixedString(this->isAllocated(), this->value_.string_, &this_len, + &this_str); + return this_len; +} +#endif + +bool Value::getString(char const** begin, char const** end) const { + if (type() != stringValue) + return false; + if (value_.string_ == nullptr) + return false; + unsigned length; + decodePrefixedString(this->isAllocated(), this->value_.string_, &length, + begin); + *end = *begin + length; + return true; +} + +String Value::asString() const { + switch (type()) { + case nullValue: + return ""; + case stringValue: { + if (value_.string_ == nullptr) + return ""; + unsigned this_len; + char const* this_str; + decodePrefixedString(this->isAllocated(), this->value_.string_, &this_len, + &this_str); + return String(this_str, this_len); + } + case booleanValue: + return value_.bool_ ? "true" : "false"; + case intValue: + return valueToString(value_.int_); + case uintValue: + return valueToString(value_.uint_); + case realValue: + return valueToString(value_.real_); + default: + JSON_FAIL_MESSAGE("Type is not convertible to string"); + } +} + +Value::Int Value::asInt() const { + switch (type()) { + case intValue: + JSON_ASSERT_MESSAGE(isInt(), "LargestInt out of Int range"); + return Int(value_.int_); + case uintValue: + JSON_ASSERT_MESSAGE(isInt(), "LargestUInt out of Int range"); + return Int(value_.uint_); + case realValue: + JSON_ASSERT_MESSAGE(InRange(value_.real_, minInt, maxInt), + "double out of Int range"); + return Int(value_.real_); + case nullValue: + return 0; + case booleanValue: + return value_.bool_ ? 1 : 0; + default: + break; + } + JSON_FAIL_MESSAGE("Value is not convertible to Int."); +} + +Value::UInt Value::asUInt() const { + switch (type()) { + case intValue: + JSON_ASSERT_MESSAGE(isUInt(), "LargestInt out of UInt range"); + return UInt(value_.int_); + case uintValue: + JSON_ASSERT_MESSAGE(isUInt(), "LargestUInt out of UInt range"); + return UInt(value_.uint_); + case realValue: + JSON_ASSERT_MESSAGE(InRange(value_.real_, 0, maxUInt), + "double out of UInt range"); + return UInt(value_.real_); + case nullValue: + return 0; + case booleanValue: + return value_.bool_ ? 1 : 0; + default: + break; + } + JSON_FAIL_MESSAGE("Value is not convertible to UInt."); +} + +#if defined(JSON_HAS_INT64) + +Value::Int64 Value::asInt64() const { + switch (type()) { + case intValue: + return Int64(value_.int_); + case uintValue: + JSON_ASSERT_MESSAGE(isInt64(), "LargestUInt out of Int64 range"); + return Int64(value_.uint_); + case realValue: + JSON_ASSERT_MESSAGE(InRange(value_.real_, minInt64, maxInt64), + "double out of Int64 range"); + return Int64(value_.real_); + case nullValue: + return 0; + case booleanValue: + return value_.bool_ ? 1 : 0; + default: + break; + } + JSON_FAIL_MESSAGE("Value is not convertible to Int64."); +} + +Value::UInt64 Value::asUInt64() const { + switch (type()) { + case intValue: + JSON_ASSERT_MESSAGE(isUInt64(), "LargestInt out of UInt64 range"); + return UInt64(value_.int_); + case uintValue: + return UInt64(value_.uint_); + case realValue: + JSON_ASSERT_MESSAGE(InRange(value_.real_, 0, maxUInt64), + "double out of UInt64 range"); + return UInt64(value_.real_); + case nullValue: + return 0; + case booleanValue: + return value_.bool_ ? 1 : 0; + default: + break; + } + JSON_FAIL_MESSAGE("Value is not convertible to UInt64."); +} +#endif // if defined(JSON_HAS_INT64) + +LargestInt Value::asLargestInt() const { +#if defined(JSON_NO_INT64) + return asInt(); +#else + return asInt64(); +#endif +} + +LargestUInt Value::asLargestUInt() const { +#if defined(JSON_NO_INT64) + return asUInt(); +#else + return asUInt64(); +#endif +} + +double Value::asDouble() const { + switch (type()) { + case intValue: + return static_cast(value_.int_); + case uintValue: +#if !defined(JSON_USE_INT64_DOUBLE_CONVERSION) + return static_cast(value_.uint_); +#else // if !defined(JSON_USE_INT64_DOUBLE_CONVERSION) + return integerToDouble(value_.uint_); +#endif // if !defined(JSON_USE_INT64_DOUBLE_CONVERSION) + case realValue: + return value_.real_; + case nullValue: + return 0.0; + case booleanValue: + return value_.bool_ ? 1.0 : 0.0; + default: + break; + } + JSON_FAIL_MESSAGE("Value is not convertible to double."); +} + +float Value::asFloat() const { + switch (type()) { + case intValue: + return static_cast(value_.int_); + case uintValue: +#if !defined(JSON_USE_INT64_DOUBLE_CONVERSION) + return static_cast(value_.uint_); +#else // if !defined(JSON_USE_INT64_DOUBLE_CONVERSION) + // This can fail (silently?) if the value is bigger than MAX_FLOAT. + return static_cast(integerToDouble(value_.uint_)); +#endif // if !defined(JSON_USE_INT64_DOUBLE_CONVERSION) + case realValue: + return static_cast(value_.real_); + case nullValue: + return 0.0; + case booleanValue: + return value_.bool_ ? 1.0F : 0.0F; + default: + break; + } + JSON_FAIL_MESSAGE("Value is not convertible to float."); +} + +bool Value::asBool() const { + switch (type()) { + case booleanValue: + return value_.bool_; + case nullValue: + return false; + case intValue: + return value_.int_ != 0; + case uintValue: + return value_.uint_ != 0; + case realValue: { + // According to JavaScript language zero or NaN is regarded as false + const auto value_classification = std::fpclassify(value_.real_); + return value_classification != FP_ZERO && value_classification != FP_NAN; + } + default: + break; + } + JSON_FAIL_MESSAGE("Value is not convertible to bool."); +} + +bool Value::isConvertibleTo(ValueType other) const { + switch (other) { + case nullValue: + return (isNumeric() && asDouble() == 0.0) || + (type() == booleanValue && !value_.bool_) || + (type() == stringValue && asString().empty()) || + (type() == arrayValue && value_.map_->empty()) || + (type() == objectValue && value_.map_->empty()) || + type() == nullValue; + case intValue: + return isInt() || + (type() == realValue && InRange(value_.real_, minInt, maxInt)) || + type() == booleanValue || type() == nullValue; + case uintValue: + return isUInt() || + (type() == realValue && InRange(value_.real_, 0, maxUInt)) || + type() == booleanValue || type() == nullValue; + case realValue: + return isNumeric() || type() == booleanValue || type() == nullValue; + case booleanValue: + return isNumeric() || type() == booleanValue || type() == nullValue; + case stringValue: + return isNumeric() || type() == booleanValue || type() == stringValue || + type() == nullValue; + case arrayValue: + return type() == arrayValue || type() == nullValue; + case objectValue: + return type() == objectValue || type() == nullValue; + } + JSON_ASSERT_UNREACHABLE; + return false; +} + +/// Number of values in array or object +ArrayIndex Value::size() const { + switch (type()) { + case nullValue: + case intValue: + case uintValue: + case realValue: + case booleanValue: + case stringValue: + return 0; + case arrayValue: // size of the array is highest index + 1 + if (!value_.map_->empty()) { + ObjectValues::const_iterator itLast = value_.map_->end(); + --itLast; + return (*itLast).first.index() + 1; + } + return 0; + case objectValue: + return ArrayIndex(value_.map_->size()); + } + JSON_ASSERT_UNREACHABLE; + return 0; // unreachable; +} + +bool Value::empty() const { + if (isNull() || isArray() || isObject()) + return size() == 0U; + return false; +} + +Value::operator bool() const { return !isNull(); } + +void Value::clear() { + JSON_ASSERT_MESSAGE(type() == nullValue || type() == arrayValue || + type() == objectValue, + "in Json::Value::clear(): requires complex value"); + start_ = 0; + limit_ = 0; + switch (type()) { + case arrayValue: + case objectValue: + value_.map_->clear(); + break; + default: + break; + } +} + +void Value::resize(ArrayIndex newSize) { + JSON_ASSERT_MESSAGE(type() == nullValue || type() == arrayValue, + "in Json::Value::resize(): requires arrayValue"); + if (type() == nullValue) + *this = Value(arrayValue); + ArrayIndex oldSize = size(); + if (newSize == 0) + clear(); + else if (newSize > oldSize) + for (ArrayIndex i = oldSize; i < newSize; ++i) + (*this)[i]; + else { + for (ArrayIndex index = newSize; index < oldSize; ++index) { + value_.map_->erase(index); + } + JSON_ASSERT(size() == newSize); + } +} + +Value& Value::operator[](ArrayIndex index) { + JSON_ASSERT_MESSAGE( + type() == nullValue || type() == arrayValue, + "in Json::Value::operator[](ArrayIndex): requires arrayValue"); + if (type() == nullValue) + *this = Value(arrayValue); + CZString key(index); + auto it = value_.map_->lower_bound(key); + if (it != value_.map_->end() && (*it).first == key) + return (*it).second; + + ObjectValues::value_type defaultValue(key, nullSingleton()); + it = value_.map_->insert(it, defaultValue); + return (*it).second; +} + +Value& Value::operator[](int index) { + JSON_ASSERT_MESSAGE( + index >= 0, + "in Json::Value::operator[](int index): index cannot be negative"); + return (*this)[ArrayIndex(index)]; +} + +const Value& Value::operator[](ArrayIndex index) const { + JSON_ASSERT_MESSAGE( + type() == nullValue || type() == arrayValue, + "in Json::Value::operator[](ArrayIndex)const: requires arrayValue"); + if (type() == nullValue) + return nullSingleton(); + CZString key(index); + ObjectValues::const_iterator it = value_.map_->find(key); + if (it == value_.map_->end()) + return nullSingleton(); + return (*it).second; +} + +const Value& Value::operator[](int index) const { + JSON_ASSERT_MESSAGE( + index >= 0, + "in Json::Value::operator[](int index) const: index cannot be negative"); + return (*this)[ArrayIndex(index)]; +} + +void Value::initBasic(ValueType type, bool allocated) { + setType(type); + setIsAllocated(allocated); + comments_ = Comments{}; + start_ = 0; + limit_ = 0; +} + +void Value::dupPayload(const Value& other) { + setType(other.type()); + setIsAllocated(false); + switch (type()) { + case nullValue: + case intValue: + case uintValue: + case realValue: + case booleanValue: + value_ = other.value_; + break; + case stringValue: + if (other.value_.string_ && other.isAllocated()) { + unsigned len; + char const* str; + decodePrefixedString(other.isAllocated(), other.value_.string_, &len, + &str); + value_.string_ = duplicateAndPrefixStringValue(str, len); + setIsAllocated(true); + } else { + value_.string_ = other.value_.string_; + } + break; + case arrayValue: + case objectValue: + value_.map_ = new ObjectValues(*other.value_.map_); + break; + default: + JSON_ASSERT_UNREACHABLE; + } +} + +void Value::releasePayload() { + switch (type()) { + case nullValue: + case intValue: + case uintValue: + case realValue: + case booleanValue: + break; + case stringValue: + if (isAllocated()) + releasePrefixedStringValue(value_.string_); + break; + case arrayValue: + case objectValue: + delete value_.map_; + break; + default: + JSON_ASSERT_UNREACHABLE; + } +} + +void Value::dupMeta(const Value& other) { + comments_ = other.comments_; + start_ = other.start_; + limit_ = other.limit_; +} + +// Access an object value by name, create a null member if it does not exist. +// @pre Type of '*this' is object or null. +// @param key is null-terminated. +Value& Value::resolveReference(const char* key) { + JSON_ASSERT_MESSAGE( + type() == nullValue || type() == objectValue, + "in Json::Value::resolveReference(): requires objectValue"); + if (type() == nullValue) + *this = Value(objectValue); + CZString actualKey(key, static_cast(strlen(key)), + CZString::noDuplication); // NOTE! + auto it = value_.map_->lower_bound(actualKey); + if (it != value_.map_->end() && (*it).first == actualKey) + return (*it).second; + + ObjectValues::value_type defaultValue(actualKey, nullSingleton()); + it = value_.map_->insert(it, defaultValue); + Value& value = (*it).second; + return value; +} + +// @param key is not null-terminated. +Value& Value::resolveReference(char const* key, char const* end) { + JSON_ASSERT_MESSAGE( + type() == nullValue || type() == objectValue, + "in Json::Value::resolveReference(key, end): requires objectValue"); + if (type() == nullValue) + *this = Value(objectValue); + CZString actualKey(key, static_cast(end - key), + CZString::duplicateOnCopy); + auto it = value_.map_->lower_bound(actualKey); + if (it != value_.map_->end() && (*it).first == actualKey) + return (*it).second; + + ObjectValues::value_type defaultValue(actualKey, nullSingleton()); + it = value_.map_->insert(it, defaultValue); + Value& value = (*it).second; + return value; +} + +Value Value::get(ArrayIndex index, const Value& defaultValue) const { + const Value* value = &((*this)[index]); + return value == &nullSingleton() ? defaultValue : *value; +} + +bool Value::isValidIndex(ArrayIndex index) const { return index < size(); } + +Value const* Value::find(char const* begin, char const* end) const { + JSON_ASSERT_MESSAGE(type() == nullValue || type() == objectValue, + "in Json::Value::find(begin, end): requires " + "objectValue or nullValue"); + if (type() == nullValue) + return nullptr; + CZString actualKey(begin, static_cast(end - begin), + CZString::noDuplication); + ObjectValues::const_iterator it = value_.map_->find(actualKey); + if (it == value_.map_->end()) + return nullptr; + return &(*it).second; +} +Value* Value::demand(char const* begin, char const* end) { + JSON_ASSERT_MESSAGE(type() == nullValue || type() == objectValue, + "in Json::Value::demand(begin, end): requires " + "objectValue or nullValue"); + return &resolveReference(begin, end); +} +const Value& Value::operator[](const char* key) const { + Value const* found = find(key, key + strlen(key)); + if (!found) + return nullSingleton(); + return *found; +} +Value const& Value::operator[](const String& key) const { + Value const* found = find(key.data(), key.data() + key.length()); + if (!found) + return nullSingleton(); + return *found; +} + +Value& Value::operator[](const char* key) { + return resolveReference(key, key + strlen(key)); +} + +Value& Value::operator[](const String& key) { + return resolveReference(key.data(), key.data() + key.length()); +} + +Value& Value::operator[](const StaticString& key) { + return resolveReference(key.c_str()); +} + +Value& Value::append(const Value& value) { return append(Value(value)); } + +Value& Value::append(Value&& value) { + JSON_ASSERT_MESSAGE(type() == nullValue || type() == arrayValue, + "in Json::Value::append: requires arrayValue"); + if (type() == nullValue) { + *this = Value(arrayValue); + } + return this->value_.map_->emplace(size(), std::move(value)).first->second; +} + +bool Value::insert(ArrayIndex index, const Value& newValue) { + return insert(index, Value(newValue)); +} + +bool Value::insert(ArrayIndex index, Value&& newValue) { + JSON_ASSERT_MESSAGE(type() == nullValue || type() == arrayValue, + "in Json::Value::insert: requires arrayValue"); + ArrayIndex length = size(); + if (index > length) { + return false; + } + for (ArrayIndex i = length; i > index; i--) { + (*this)[i] = std::move((*this)[i - 1]); + } + (*this)[index] = std::move(newValue); + return true; +} + +Value Value::get(char const* begin, char const* end, + Value const& defaultValue) const { + Value const* found = find(begin, end); + return !found ? defaultValue : *found; +} +Value Value::get(char const* key, Value const& defaultValue) const { + return get(key, key + strlen(key), defaultValue); +} +Value Value::get(String const& key, Value const& defaultValue) const { + return get(key.data(), key.data() + key.length(), defaultValue); +} + +bool Value::removeMember(const char* begin, const char* end, Value* removed) { + if (type() != objectValue) { + return false; + } + CZString actualKey(begin, static_cast(end - begin), + CZString::noDuplication); + auto it = value_.map_->find(actualKey); + if (it == value_.map_->end()) + return false; + if (removed) + *removed = std::move(it->second); + value_.map_->erase(it); + return true; +} +bool Value::removeMember(const char* key, Value* removed) { + return removeMember(key, key + strlen(key), removed); +} +bool Value::removeMember(String const& key, Value* removed) { + return removeMember(key.data(), key.data() + key.length(), removed); +} +void Value::removeMember(const char* key) { + JSON_ASSERT_MESSAGE(type() == nullValue || type() == objectValue, + "in Json::Value::removeMember(): requires objectValue"); + if (type() == nullValue) + return; + + CZString actualKey(key, unsigned(strlen(key)), CZString::noDuplication); + value_.map_->erase(actualKey); +} +void Value::removeMember(const String& key) { removeMember(key.c_str()); } + +bool Value::removeIndex(ArrayIndex index, Value* removed) { + if (type() != arrayValue) { + return false; + } + CZString key(index); + auto it = value_.map_->find(key); + if (it == value_.map_->end()) { + return false; + } + if (removed) + *removed = it->second; + ArrayIndex oldSize = size(); + // shift left all items left, into the place of the "removed" + for (ArrayIndex i = index; i < (oldSize - 1); ++i) { + CZString keey(i); + (*value_.map_)[keey] = (*this)[i + 1]; + } + // erase the last one ("leftover") + CZString keyLast(oldSize - 1); + auto itLast = value_.map_->find(keyLast); + value_.map_->erase(itLast); + return true; +} + +bool Value::isMember(char const* begin, char const* end) const { + Value const* value = find(begin, end); + return nullptr != value; +} +bool Value::isMember(char const* key) const { + return isMember(key, key + strlen(key)); +} +bool Value::isMember(String const& key) const { + return isMember(key.data(), key.data() + key.length()); +} + +Value::Members Value::getMemberNames() const { + JSON_ASSERT_MESSAGE( + type() == nullValue || type() == objectValue, + "in Json::Value::getMemberNames(), value must be objectValue"); + if (type() == nullValue) + return Value::Members(); + Members members; + members.reserve(value_.map_->size()); + ObjectValues::const_iterator it = value_.map_->begin(); + ObjectValues::const_iterator itEnd = value_.map_->end(); + for (; it != itEnd; ++it) { + members.push_back(String((*it).first.data(), (*it).first.length())); + } + return members; +} + +static bool IsIntegral(double d) { + double integral_part; + return modf(d, &integral_part) == 0.0; +} + +bool Value::isNull() const { return type() == nullValue; } + +bool Value::isBool() const { return type() == booleanValue; } + +bool Value::isInt() const { + switch (type()) { + case intValue: +#if defined(JSON_HAS_INT64) + return value_.int_ >= minInt && value_.int_ <= maxInt; +#else + return true; +#endif + case uintValue: + return value_.uint_ <= UInt(maxInt); + case realValue: + return value_.real_ >= minInt && value_.real_ <= maxInt && + IsIntegral(value_.real_); + default: + break; + } + return false; +} + +bool Value::isUInt() const { + switch (type()) { + case intValue: +#if defined(JSON_HAS_INT64) + return value_.int_ >= 0 && LargestUInt(value_.int_) <= LargestUInt(maxUInt); +#else + return value_.int_ >= 0; +#endif + case uintValue: +#if defined(JSON_HAS_INT64) + return value_.uint_ <= maxUInt; +#else + return true; +#endif + case realValue: + return value_.real_ >= 0 && value_.real_ <= maxUInt && + IsIntegral(value_.real_); + default: + break; + } + return false; +} + +bool Value::isInt64() const { +#if defined(JSON_HAS_INT64) + switch (type()) { + case intValue: + return true; + case uintValue: + return value_.uint_ <= UInt64(maxInt64); + case realValue: + // Note that maxInt64 (= 2^63 - 1) is not exactly representable as a + // double, so double(maxInt64) will be rounded up to 2^63. Therefore we + // require the value to be strictly less than the limit. + return value_.real_ >= double(minInt64) && + value_.real_ < double(maxInt64) && IsIntegral(value_.real_); + default: + break; + } +#endif // JSON_HAS_INT64 + return false; +} + +bool Value::isUInt64() const { +#if defined(JSON_HAS_INT64) + switch (type()) { + case intValue: + return value_.int_ >= 0; + case uintValue: + return true; + case realValue: + // Note that maxUInt64 (= 2^64 - 1) is not exactly representable as a + // double, so double(maxUInt64) will be rounded up to 2^64. Therefore we + // require the value to be strictly less than the limit. + return value_.real_ >= 0 && value_.real_ < maxUInt64AsDouble && + IsIntegral(value_.real_); + default: + break; + } +#endif // JSON_HAS_INT64 + return false; +} + +bool Value::isIntegral() const { + switch (type()) { + case intValue: + case uintValue: + return true; + case realValue: +#if defined(JSON_HAS_INT64) + // Note that maxUInt64 (= 2^64 - 1) is not exactly representable as a + // double, so double(maxUInt64) will be rounded up to 2^64. Therefore we + // require the value to be strictly less than the limit. + return value_.real_ >= double(minInt64) && + value_.real_ < maxUInt64AsDouble && IsIntegral(value_.real_); +#else + return value_.real_ >= minInt && value_.real_ <= maxUInt && + IsIntegral(value_.real_); +#endif // JSON_HAS_INT64 + default: + break; + } + return false; +} + +bool Value::isDouble() const { + return type() == intValue || type() == uintValue || type() == realValue; +} + +bool Value::isNumeric() const { return isDouble(); } + +bool Value::isString() const { return type() == stringValue; } + +bool Value::isArray() const { return type() == arrayValue; } + +bool Value::isObject() const { return type() == objectValue; } + +Value::Comments::Comments(const Comments& that) + : ptr_{cloneUnique(that.ptr_)} {} + +Value::Comments::Comments(Comments&& that) noexcept + : ptr_{std::move(that.ptr_)} {} + +Value::Comments& Value::Comments::operator=(const Comments& that) { + ptr_ = cloneUnique(that.ptr_); + return *this; +} + +Value::Comments& Value::Comments::operator=(Comments&& that) noexcept { + ptr_ = std::move(that.ptr_); + return *this; +} + +bool Value::Comments::has(CommentPlacement slot) const { + return ptr_ && !(*ptr_)[slot].empty(); +} + +String Value::Comments::get(CommentPlacement slot) const { + if (!ptr_) + return {}; + return (*ptr_)[slot]; +} + +void Value::Comments::set(CommentPlacement slot, String comment) { + if (slot >= CommentPlacement::numberOfCommentPlacement) + return; + if (!ptr_) + ptr_ = std::unique_ptr(new Array()); + (*ptr_)[slot] = std::move(comment); +} + +void Value::setComment(String comment, CommentPlacement placement) { + if (!comment.empty() && (comment.back() == '\n')) { + // Always discard trailing newline, to aid indentation. + comment.pop_back(); + } + JSON_ASSERT(!comment.empty()); + JSON_ASSERT_MESSAGE( + comment[0] == '\0' || comment[0] == '/', + "in Json::Value::setComment(): Comments must start with /"); + comments_.set(placement, std::move(comment)); +} + +bool Value::hasComment(CommentPlacement placement) const { + return comments_.has(placement); +} + +String Value::getComment(CommentPlacement placement) const { + return comments_.get(placement); +} + +void Value::setOffsetStart(ptrdiff_t start) { start_ = start; } + +void Value::setOffsetLimit(ptrdiff_t limit) { limit_ = limit; } + +ptrdiff_t Value::getOffsetStart() const { return start_; } + +ptrdiff_t Value::getOffsetLimit() const { return limit_; } + +String Value::toStyledString() const { + StreamWriterBuilder builder; + + String out = this->hasComment(commentBefore) ? "\n" : ""; + out += Json::writeString(builder, *this); + out += '\n'; + + return out; +} + +Value::const_iterator Value::begin() const { + switch (type()) { + case arrayValue: + case objectValue: + if (value_.map_) + return const_iterator(value_.map_->begin()); + break; + default: + break; + } + return {}; +} + +Value::const_iterator Value::end() const { + switch (type()) { + case arrayValue: + case objectValue: + if (value_.map_) + return const_iterator(value_.map_->end()); + break; + default: + break; + } + return {}; +} + +Value::iterator Value::begin() { + switch (type()) { + case arrayValue: + case objectValue: + if (value_.map_) + return iterator(value_.map_->begin()); + break; + default: + break; + } + return iterator(); +} + +Value::iterator Value::end() { + switch (type()) { + case arrayValue: + case objectValue: + if (value_.map_) + return iterator(value_.map_->end()); + break; + default: + break; + } + return iterator(); +} + +// class PathArgument +// ////////////////////////////////////////////////////////////////// + +PathArgument::PathArgument() = default; + +PathArgument::PathArgument(ArrayIndex index) + : index_(index), kind_(kindIndex) {} + +PathArgument::PathArgument(const char* key) : key_(key), kind_(kindKey) {} + +PathArgument::PathArgument(String key) : key_(std::move(key)), kind_(kindKey) {} + +// class Path +// ////////////////////////////////////////////////////////////////// + +Path::Path(const String& path, const PathArgument& a1, const PathArgument& a2, + const PathArgument& a3, const PathArgument& a4, + const PathArgument& a5) { + InArgs in; + in.reserve(5); + in.push_back(&a1); + in.push_back(&a2); + in.push_back(&a3); + in.push_back(&a4); + in.push_back(&a5); + makePath(path, in); +} + +void Path::makePath(const String& path, const InArgs& in) { + const char* current = path.c_str(); + const char* end = current + path.length(); + auto itInArg = in.begin(); + while (current != end) { + if (*current == '[') { + ++current; + if (*current == '%') + addPathInArg(path, in, itInArg, PathArgument::kindIndex); + else { + ArrayIndex index = 0; + for (; current != end && *current >= '0' && *current <= '9'; ++current) + index = index * 10 + ArrayIndex(*current - '0'); + args_.push_back(index); + } + if (current == end || *++current != ']') + invalidPath(path, int(current - path.c_str())); + } else if (*current == '%') { + addPathInArg(path, in, itInArg, PathArgument::kindKey); + ++current; + } else if (*current == '.' || *current == ']') { + ++current; + } else { + const char* beginName = current; + while (current != end && !strchr("[.", *current)) + ++current; + args_.push_back(String(beginName, current)); + } + } +} + +void Path::addPathInArg(const String& /*path*/, const InArgs& in, + InArgs::const_iterator& itInArg, + PathArgument::Kind kind) { + if (itInArg == in.end()) { + // Error: missing argument %d + } else if ((*itInArg)->kind_ != kind) { + // Error: bad argument type + } else { + args_.push_back(**itInArg++); + } +} + +void Path::invalidPath(const String& /*path*/, int /*location*/) { + // Error: invalid path. +} + +const Value& Path::resolve(const Value& root) const { + const Value* node = &root; + for (const auto& arg : args_) { + if (arg.kind_ == PathArgument::kindIndex) { + if (!node->isArray() || !node->isValidIndex(arg.index_)) { + // Error: unable to resolve path (array value expected at position... ) + return Value::nullSingleton(); + } + node = &((*node)[arg.index_]); + } else if (arg.kind_ == PathArgument::kindKey) { + if (!node->isObject()) { + // Error: unable to resolve path (object value expected at position...) + return Value::nullSingleton(); + } + node = &((*node)[arg.key_]); + if (node == &Value::nullSingleton()) { + // Error: unable to resolve path (object has no member named '' at + // position...) + return Value::nullSingleton(); + } + } + } + return *node; +} + +Value Path::resolve(const Value& root, const Value& defaultValue) const { + const Value* node = &root; + for (const auto& arg : args_) { + if (arg.kind_ == PathArgument::kindIndex) { + if (!node->isArray() || !node->isValidIndex(arg.index_)) + return defaultValue; + node = &((*node)[arg.index_]); + } else if (arg.kind_ == PathArgument::kindKey) { + if (!node->isObject()) + return defaultValue; + node = &((*node)[arg.key_]); + if (node == &Value::nullSingleton()) + return defaultValue; + } + } + return *node; +} + +Value& Path::make(Value& root) const { + Value* node = &root; + for (const auto& arg : args_) { + if (arg.kind_ == PathArgument::kindIndex) { + if (!node->isArray()) { + // Error: node is not an array at position ... + } + node = &((*node)[arg.index_]); + } else if (arg.kind_ == PathArgument::kindKey) { + if (!node->isObject()) { + // Error: node is not an object at position... + } + node = &((*node)[arg.key_]); + } + } + return *node; +} + +} // namespace Json diff --git a/toolkit/components/jsoncpp/src/lib_json/json_valueiterator.inl b/toolkit/components/jsoncpp/src/lib_json/json_valueiterator.inl new file mode 100644 index 0000000000..d6128b8edf --- /dev/null +++ b/toolkit/components/jsoncpp/src/lib_json/json_valueiterator.inl @@ -0,0 +1,156 @@ +// Copyright 2007-2010 Baptiste Lepilleur and The JsonCpp Authors +// Distributed under MIT license, or public domain if desired and +// recognized in your jurisdiction. +// See file LICENSE for detail or copy at http://jsoncpp.sourceforge.net/LICENSE + +// included by json_value.cpp + +namespace Json { + +// ////////////////////////////////////////////////////////////////// +// ////////////////////////////////////////////////////////////////// +// ////////////////////////////////////////////////////////////////// +// class ValueIteratorBase +// ////////////////////////////////////////////////////////////////// +// ////////////////////////////////////////////////////////////////// +// ////////////////////////////////////////////////////////////////// + +ValueIteratorBase::ValueIteratorBase() : current_() {} + +ValueIteratorBase::ValueIteratorBase( + const Value::ObjectValues::iterator& current) + : current_(current), isNull_(false) {} + +Value& ValueIteratorBase::deref() { return current_->second; } +const Value& ValueIteratorBase::deref() const { return current_->second; } + +void ValueIteratorBase::increment() { ++current_; } + +void ValueIteratorBase::decrement() { --current_; } + +ValueIteratorBase::difference_type +ValueIteratorBase::computeDistance(const SelfType& other) const { + // Iterator for null value are initialized using the default + // constructor, which initialize current_ to the default + // std::map::iterator. As begin() and end() are two instance + // of the default std::map::iterator, they can not be compared. + // To allow this, we handle this comparison specifically. + if (isNull_ && other.isNull_) { + return 0; + } + + // Usage of std::distance is not portable (does not compile with Sun Studio 12 + // RogueWave STL, + // which is the one used by default). + // Using a portable hand-made version for non random iterator instead: + // return difference_type( std::distance( current_, other.current_ ) ); + difference_type myDistance = 0; + for (Value::ObjectValues::iterator it = current_; it != other.current_; + ++it) { + ++myDistance; + } + return myDistance; +} + +bool ValueIteratorBase::isEqual(const SelfType& other) const { + if (isNull_) { + return other.isNull_; + } + return current_ == other.current_; +} + +void ValueIteratorBase::copy(const SelfType& other) { + current_ = other.current_; + isNull_ = other.isNull_; +} + +Value ValueIteratorBase::key() const { + const Value::CZString czstring = (*current_).first; + if (czstring.data()) { + if (czstring.isStaticString()) + return Value(StaticString(czstring.data())); + return Value(czstring.data(), czstring.data() + czstring.length()); + } + return Value(czstring.index()); +} + +UInt ValueIteratorBase::index() const { + const Value::CZString czstring = (*current_).first; + if (!czstring.data()) + return czstring.index(); + return Value::UInt(-1); +} + +String ValueIteratorBase::name() const { + char const* keey; + char const* end; + keey = memberName(&end); + if (!keey) + return String(); + return String(keey, end); +} + +char const* ValueIteratorBase::memberName() const { + const char* cname = (*current_).first.data(); + return cname ? cname : ""; +} + +char const* ValueIteratorBase::memberName(char const** end) const { + const char* cname = (*current_).first.data(); + if (!cname) { + *end = nullptr; + return nullptr; + } + *end = cname + (*current_).first.length(); + return cname; +} + +// ////////////////////////////////////////////////////////////////// +// ////////////////////////////////////////////////////////////////// +// ////////////////////////////////////////////////////////////////// +// class ValueConstIterator +// ////////////////////////////////////////////////////////////////// +// ////////////////////////////////////////////////////////////////// +// ////////////////////////////////////////////////////////////////// + +ValueConstIterator::ValueConstIterator() = default; + +ValueConstIterator::ValueConstIterator( + const Value::ObjectValues::iterator& current) + : ValueIteratorBase(current) {} + +ValueConstIterator::ValueConstIterator(ValueIterator const& other) + : ValueIteratorBase(other) {} + +ValueConstIterator& ValueConstIterator:: +operator=(const ValueIteratorBase& other) { + copy(other); + return *this; +} + +// ////////////////////////////////////////////////////////////////// +// ////////////////////////////////////////////////////////////////// +// ////////////////////////////////////////////////////////////////// +// class ValueIterator +// ////////////////////////////////////////////////////////////////// +// ////////////////////////////////////////////////////////////////// +// ////////////////////////////////////////////////////////////////// + +ValueIterator::ValueIterator() = default; + +ValueIterator::ValueIterator(const Value::ObjectValues::iterator& current) + : ValueIteratorBase(current) {} + +ValueIterator::ValueIterator(const ValueConstIterator& other) + : ValueIteratorBase(other) { + throwRuntimeError("ConstIterator to Iterator should never be allowed."); +} + +ValueIterator::ValueIterator(const ValueIterator& other) = default; + +ValueIterator& ValueIterator::operator=(const SelfType& other) { + copy(other); + return *this; +} + +} // namespace Json diff --git a/toolkit/components/jsoncpp/src/lib_json/json_writer.cpp b/toolkit/components/jsoncpp/src/lib_json/json_writer.cpp new file mode 100644 index 0000000000..0dd160e452 --- /dev/null +++ b/toolkit/components/jsoncpp/src/lib_json/json_writer.cpp @@ -0,0 +1,1259 @@ +// Copyright 2011 Baptiste Lepilleur and The JsonCpp Authors +// Distributed under MIT license, or public domain if desired and +// recognized in your jurisdiction. +// See file LICENSE for detail or copy at http://jsoncpp.sourceforge.net/LICENSE + +#if !defined(JSON_IS_AMALGAMATION) +#include "json_tool.h" +#include +#endif // if !defined(JSON_IS_AMALGAMATION) +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#if __cplusplus >= 201103L +#include +#include + +#if !defined(isnan) +#define isnan std::isnan +#endif + +#if !defined(isfinite) +#define isfinite std::isfinite +#endif + +#else +#include +#include + +#if defined(_MSC_VER) +#if !defined(isnan) +#include +#define isnan _isnan +#endif + +#if !defined(isfinite) +#include +#define isfinite _finite +#endif + +#if !defined(_CRT_SECURE_CPP_OVERLOAD_STANDARD_NAMES) +#define _CRT_SECURE_CPP_OVERLOAD_STANDARD_NAMES 1 +#endif //_CRT_SECURE_CPP_OVERLOAD_STANDARD_NAMES + +#endif //_MSC_VER + +#if defined(__sun) && defined(__SVR4) // Solaris +#if !defined(isfinite) +#include +#define isfinite finite +#endif +#endif + +#if defined(__hpux) +#if !defined(isfinite) +#if defined(__ia64) && !defined(finite) +#define isfinite(x) \ + ((sizeof(x) == sizeof(float) ? _Isfinitef(x) : _IsFinite(x))) +#endif +#endif +#endif + +#if !defined(isnan) +// IEEE standard states that NaN values will not compare to themselves +#define isnan(x) ((x) != (x)) +#endif + +#if !defined(__APPLE__) +#if !defined(isfinite) +#define isfinite finite +#endif +#endif +#endif + +#if defined(_MSC_VER) +// Disable warning about strdup being deprecated. +#pragma warning(disable : 4996) +#endif + +namespace Json { + +#if __cplusplus >= 201103L || (defined(_CPPLIB_VER) && _CPPLIB_VER >= 520) +using StreamWriterPtr = std::unique_ptr; +#else +using StreamWriterPtr = std::auto_ptr; +#endif + +String valueToString(LargestInt value) { + UIntToStringBuffer buffer; + char* current = buffer + sizeof(buffer); + if (value == Value::minLargestInt) { + uintToString(LargestUInt(Value::maxLargestInt) + 1, current); + *--current = '-'; + } else if (value < 0) { + uintToString(LargestUInt(-value), current); + *--current = '-'; + } else { + uintToString(LargestUInt(value), current); + } + assert(current >= buffer); + return current; +} + +String valueToString(LargestUInt value) { + UIntToStringBuffer buffer; + char* current = buffer + sizeof(buffer); + uintToString(value, current); + assert(current >= buffer); + return current; +} + +#if defined(JSON_HAS_INT64) + +String valueToString(Int value) { return valueToString(LargestInt(value)); } + +String valueToString(UInt value) { return valueToString(LargestUInt(value)); } + +#endif // # if defined(JSON_HAS_INT64) + +namespace { +String valueToString(double value, bool useSpecialFloats, + unsigned int precision, PrecisionType precisionType) { + // Print into the buffer. We need not request the alternative representation + // that always has a decimal point because JSON doesn't distinguish the + // concepts of reals and integers. + if (!isfinite(value)) { + static const char* const reps[2][3] = {{"NaN", "-Infinity", "Infinity"}, + {"null", "-1e+9999", "1e+9999"}}; + return reps[useSpecialFloats ? 0 : 1] + [isnan(value) ? 0 : (value < 0) ? 1 : 2]; + } + + String buffer(size_t(36), '\0'); + while (true) { + int len = jsoncpp_snprintf( + &*buffer.begin(), buffer.size(), + (precisionType == PrecisionType::significantDigits) ? "%.*g" : "%.*f", + precision, value); + assert(len >= 0); + auto wouldPrint = static_cast(len); + if (wouldPrint >= buffer.size()) { + buffer.resize(wouldPrint + 1); + continue; + } + buffer.resize(wouldPrint); + break; + } + + buffer.erase(fixNumericLocale(buffer.begin(), buffer.end()), buffer.end()); + + // try to ensure we preserve the fact that this was given to us as a double on + // input + if (buffer.find('.') == buffer.npos && buffer.find('e') == buffer.npos) { + buffer += ".0"; + } + + // strip the zero padding from the right + if (precisionType == PrecisionType::decimalPlaces) { + buffer.erase(fixZerosInTheEnd(buffer.begin(), buffer.end(), precision), + buffer.end()); + } + + return buffer; +} +} // namespace + +String valueToString(double value, unsigned int precision, + PrecisionType precisionType) { + return valueToString(value, false, precision, precisionType); +} + +String valueToString(bool value) { return value ? "true" : "false"; } + +static bool doesAnyCharRequireEscaping(char const* s, size_t n) { + assert(s || !n); + + return std::any_of(s, s + n, [](unsigned char c) { + return c == '\\' || c == '"' || c < 0x20 || c > 0x7F; + }); +} + +static unsigned int utf8ToCodepoint(const char*& s, const char* e) { + const unsigned int REPLACEMENT_CHARACTER = 0xFFFD; + + unsigned int firstByte = static_cast(*s); + + if (firstByte < 0x80) + return firstByte; + + if (firstByte < 0xE0) { + if (e - s < 2) + return REPLACEMENT_CHARACTER; + + unsigned int calculated = + ((firstByte & 0x1F) << 6) | (static_cast(s[1]) & 0x3F); + s += 1; + // oversized encoded characters are invalid + return calculated < 0x80 ? REPLACEMENT_CHARACTER : calculated; + } + + if (firstByte < 0xF0) { + if (e - s < 3) + return REPLACEMENT_CHARACTER; + + unsigned int calculated = ((firstByte & 0x0F) << 12) | + ((static_cast(s[1]) & 0x3F) << 6) | + (static_cast(s[2]) & 0x3F); + s += 2; + // surrogates aren't valid codepoints itself + // shouldn't be UTF-8 encoded + if (calculated >= 0xD800 && calculated <= 0xDFFF) + return REPLACEMENT_CHARACTER; + // oversized encoded characters are invalid + return calculated < 0x800 ? REPLACEMENT_CHARACTER : calculated; + } + + if (firstByte < 0xF8) { + if (e - s < 4) + return REPLACEMENT_CHARACTER; + + unsigned int calculated = ((firstByte & 0x07) << 18) | + ((static_cast(s[1]) & 0x3F) << 12) | + ((static_cast(s[2]) & 0x3F) << 6) | + (static_cast(s[3]) & 0x3F); + s += 3; + // oversized encoded characters are invalid + return calculated < 0x10000 ? REPLACEMENT_CHARACTER : calculated; + } + + return REPLACEMENT_CHARACTER; +} + +static const char hex2[] = "000102030405060708090a0b0c0d0e0f" + "101112131415161718191a1b1c1d1e1f" + "202122232425262728292a2b2c2d2e2f" + "303132333435363738393a3b3c3d3e3f" + "404142434445464748494a4b4c4d4e4f" + "505152535455565758595a5b5c5d5e5f" + "606162636465666768696a6b6c6d6e6f" + "707172737475767778797a7b7c7d7e7f" + "808182838485868788898a8b8c8d8e8f" + "909192939495969798999a9b9c9d9e9f" + "a0a1a2a3a4a5a6a7a8a9aaabacadaeaf" + "b0b1b2b3b4b5b6b7b8b9babbbcbdbebf" + "c0c1c2c3c4c5c6c7c8c9cacbcccdcecf" + "d0d1d2d3d4d5d6d7d8d9dadbdcdddedf" + "e0e1e2e3e4e5e6e7e8e9eaebecedeeef" + "f0f1f2f3f4f5f6f7f8f9fafbfcfdfeff"; + +static String toHex16Bit(unsigned int x) { + const unsigned int hi = (x >> 8) & 0xff; + const unsigned int lo = x & 0xff; + String result(4, ' '); + result[0] = hex2[2 * hi]; + result[1] = hex2[2 * hi + 1]; + result[2] = hex2[2 * lo]; + result[3] = hex2[2 * lo + 1]; + return result; +} + +static void appendRaw(String& result, unsigned ch) { + result += static_cast(ch); +} + +static void appendHex(String& result, unsigned ch) { + result.append("\\u").append(toHex16Bit(ch)); +} + +static String valueToQuotedStringN(const char* value, size_t length, + bool emitUTF8 = false) { + if (value == nullptr) + return ""; + + if (!doesAnyCharRequireEscaping(value, length)) + return String("\"") + value + "\""; + // We have to walk value and escape any special characters. + // Appending to String is not efficient, but this should be rare. + // (Note: forward slashes are *not* rare, but I am not escaping them.) + String::size_type maxsize = length * 2 + 3; // allescaped+quotes+NULL + String result; + result.reserve(maxsize); // to avoid lots of mallocs + result += "\""; + char const* end = value + length; + for (const char* c = value; c != end; ++c) { + switch (*c) { + case '\"': + result += "\\\""; + break; + case '\\': + result += "\\\\"; + break; + case '\b': + result += "\\b"; + break; + case '\f': + result += "\\f"; + break; + case '\n': + result += "\\n"; + break; + case '\r': + result += "\\r"; + break; + case '\t': + result += "\\t"; + break; + // case '/': + // Even though \/ is considered a legal escape in JSON, a bare + // slash is also legal, so I see no reason to escape it. + // (I hope I am not misunderstanding something.) + // blep notes: actually escaping \/ may be useful in javascript to avoid (*c); + if (codepoint < 0x20) { + appendHex(result, codepoint); + } else { + appendRaw(result, codepoint); + } + } else { + unsigned codepoint = utf8ToCodepoint(c, end); // modifies `c` + if (codepoint < 0x20) { + appendHex(result, codepoint); + } else if (codepoint < 0x80) { + appendRaw(result, codepoint); + } else if (codepoint < 0x10000) { + // Basic Multilingual Plane + appendHex(result, codepoint); + } else { + // Extended Unicode. Encode 20 bits as a surrogate pair. + codepoint -= 0x10000; + appendHex(result, 0xd800 + ((codepoint >> 10) & 0x3ff)); + appendHex(result, 0xdc00 + (codepoint & 0x3ff)); + } + } + } break; + } + } + result += "\""; + return result; +} + +String valueToQuotedString(const char* value) { + return valueToQuotedStringN(value, strlen(value)); +} + +// Class Writer +// ////////////////////////////////////////////////////////////////// +Writer::~Writer() = default; + +// Class FastWriter +// ////////////////////////////////////////////////////////////////// + +FastWriter::FastWriter() + + = default; + +void FastWriter::enableYAMLCompatibility() { yamlCompatibilityEnabled_ = true; } + +void FastWriter::dropNullPlaceholders() { dropNullPlaceholders_ = true; } + +void FastWriter::omitEndingLineFeed() { omitEndingLineFeed_ = true; } + +String FastWriter::write(const Value& root) { + document_.clear(); + writeValue(root); + if (!omitEndingLineFeed_) + document_ += '\n'; + return document_; +} + +void FastWriter::writeValue(const Value& value) { + switch (value.type()) { + case nullValue: + if (!dropNullPlaceholders_) + document_ += "null"; + break; + case intValue: + document_ += valueToString(value.asLargestInt()); + break; + case uintValue: + document_ += valueToString(value.asLargestUInt()); + break; + case realValue: + document_ += valueToString(value.asDouble()); + break; + case stringValue: { + // Is NULL possible for value.string_? No. + char const* str; + char const* end; + bool ok = value.getString(&str, &end); + if (ok) + document_ += valueToQuotedStringN(str, static_cast(end - str)); + break; + } + case booleanValue: + document_ += valueToString(value.asBool()); + break; + case arrayValue: { + document_ += '['; + ArrayIndex size = value.size(); + for (ArrayIndex index = 0; index < size; ++index) { + if (index > 0) + document_ += ','; + writeValue(value[index]); + } + document_ += ']'; + } break; + case objectValue: { + Value::Members members(value.getMemberNames()); + document_ += '{'; + for (auto it = members.begin(); it != members.end(); ++it) { + const String& name = *it; + if (it != members.begin()) + document_ += ','; + document_ += valueToQuotedStringN(name.data(), name.length()); + document_ += yamlCompatibilityEnabled_ ? ": " : ":"; + writeValue(value[name]); + } + document_ += '}'; + } break; + } +} + +// Class StyledWriter +// ////////////////////////////////////////////////////////////////// + +StyledWriter::StyledWriter() = default; + +String StyledWriter::write(const Value& root) { + document_.clear(); + addChildValues_ = false; + indentString_.clear(); + writeCommentBeforeValue(root); + writeValue(root); + writeCommentAfterValueOnSameLine(root); + document_ += '\n'; + return document_; +} + +void StyledWriter::writeValue(const Value& value) { + switch (value.type()) { + case nullValue: + pushValue("null"); + break; + case intValue: + pushValue(valueToString(value.asLargestInt())); + break; + case uintValue: + pushValue(valueToString(value.asLargestUInt())); + break; + case realValue: + pushValue(valueToString(value.asDouble())); + break; + case stringValue: { + // Is NULL possible for value.string_? No. + char const* str; + char const* end; + bool ok = value.getString(&str, &end); + if (ok) + pushValue(valueToQuotedStringN(str, static_cast(end - str))); + else + pushValue(""); + break; + } + case booleanValue: + pushValue(valueToString(value.asBool())); + break; + case arrayValue: + writeArrayValue(value); + break; + case objectValue: { + Value::Members members(value.getMemberNames()); + if (members.empty()) + pushValue("{}"); + else { + writeWithIndent("{"); + indent(); + auto it = members.begin(); + for (;;) { + const String& name = *it; + const Value& childValue = value[name]; + writeCommentBeforeValue(childValue); + writeWithIndent(valueToQuotedString(name.c_str())); + document_ += " : "; + writeValue(childValue); + if (++it == members.end()) { + writeCommentAfterValueOnSameLine(childValue); + break; + } + document_ += ','; + writeCommentAfterValueOnSameLine(childValue); + } + unindent(); + writeWithIndent("}"); + } + } break; + } +} + +void StyledWriter::writeArrayValue(const Value& value) { + size_t size = value.size(); + if (size == 0) + pushValue("[]"); + else { + bool isArrayMultiLine = isMultilineArray(value); + if (isArrayMultiLine) { + writeWithIndent("["); + indent(); + bool hasChildValue = !childValues_.empty(); + ArrayIndex index = 0; + for (;;) { + const Value& childValue = value[index]; + writeCommentBeforeValue(childValue); + if (hasChildValue) + writeWithIndent(childValues_[index]); + else { + writeIndent(); + writeValue(childValue); + } + if (++index == size) { + writeCommentAfterValueOnSameLine(childValue); + break; + } + document_ += ','; + writeCommentAfterValueOnSameLine(childValue); + } + unindent(); + writeWithIndent("]"); + } else // output on a single line + { + assert(childValues_.size() == size); + document_ += "[ "; + for (size_t index = 0; index < size; ++index) { + if (index > 0) + document_ += ", "; + document_ += childValues_[index]; + } + document_ += " ]"; + } + } +} + +bool StyledWriter::isMultilineArray(const Value& value) { + ArrayIndex const size = value.size(); + bool isMultiLine = size * 3 >= rightMargin_; + childValues_.clear(); + for (ArrayIndex index = 0; index < size && !isMultiLine; ++index) { + const Value& childValue = value[index]; + isMultiLine = ((childValue.isArray() || childValue.isObject()) && + !childValue.empty()); + } + if (!isMultiLine) // check if line length > max line length + { + childValues_.reserve(size); + addChildValues_ = true; + ArrayIndex lineLength = 4 + (size - 1) * 2; // '[ ' + ', '*n + ' ]' + for (ArrayIndex index = 0; index < size; ++index) { + if (hasCommentForValue(value[index])) { + isMultiLine = true; + } + writeValue(value[index]); + lineLength += static_cast(childValues_[index].length()); + } + addChildValues_ = false; + isMultiLine = isMultiLine || lineLength >= rightMargin_; + } + return isMultiLine; +} + +void StyledWriter::pushValue(const String& value) { + if (addChildValues_) + childValues_.push_back(value); + else + document_ += value; +} + +void StyledWriter::writeIndent() { + if (!document_.empty()) { + char last = document_[document_.length() - 1]; + if (last == ' ') // already indented + return; + if (last != '\n') // Comments may add new-line + document_ += '\n'; + } + document_ += indentString_; +} + +void StyledWriter::writeWithIndent(const String& value) { + writeIndent(); + document_ += value; +} + +void StyledWriter::indent() { indentString_ += String(indentSize_, ' '); } + +void StyledWriter::unindent() { + assert(indentString_.size() >= indentSize_); + indentString_.resize(indentString_.size() - indentSize_); +} + +void StyledWriter::writeCommentBeforeValue(const Value& root) { + if (!root.hasComment(commentBefore)) + return; + + document_ += '\n'; + writeIndent(); + const String& comment = root.getComment(commentBefore); + String::const_iterator iter = comment.begin(); + while (iter != comment.end()) { + document_ += *iter; + if (*iter == '\n' && ((iter + 1) != comment.end() && *(iter + 1) == '/')) + writeIndent(); + ++iter; + } + + // Comments are stripped of trailing newlines, so add one here + document_ += '\n'; +} + +void StyledWriter::writeCommentAfterValueOnSameLine(const Value& root) { + if (root.hasComment(commentAfterOnSameLine)) + document_ += " " + root.getComment(commentAfterOnSameLine); + + if (root.hasComment(commentAfter)) { + document_ += '\n'; + document_ += root.getComment(commentAfter); + document_ += '\n'; + } +} + +bool StyledWriter::hasCommentForValue(const Value& value) { + return value.hasComment(commentBefore) || + value.hasComment(commentAfterOnSameLine) || + value.hasComment(commentAfter); +} + +// Class StyledStreamWriter +// ////////////////////////////////////////////////////////////////// + +StyledStreamWriter::StyledStreamWriter(String indentation) + : document_(nullptr), indentation_(std::move(indentation)), + addChildValues_(), indented_(false) {} + +void StyledStreamWriter::write(OStream& out, const Value& root) { + document_ = &out; + addChildValues_ = false; + indentString_.clear(); + indented_ = true; + writeCommentBeforeValue(root); + if (!indented_) + writeIndent(); + indented_ = true; + writeValue(root); + writeCommentAfterValueOnSameLine(root); + *document_ << "\n"; + document_ = nullptr; // Forget the stream, for safety. +} + +void StyledStreamWriter::writeValue(const Value& value) { + switch (value.type()) { + case nullValue: + pushValue("null"); + break; + case intValue: + pushValue(valueToString(value.asLargestInt())); + break; + case uintValue: + pushValue(valueToString(value.asLargestUInt())); + break; + case realValue: + pushValue(valueToString(value.asDouble())); + break; + case stringValue: { + // Is NULL possible for value.string_? No. + char const* str; + char const* end; + bool ok = value.getString(&str, &end); + if (ok) + pushValue(valueToQuotedStringN(str, static_cast(end - str))); + else + pushValue(""); + break; + } + case booleanValue: + pushValue(valueToString(value.asBool())); + break; + case arrayValue: + writeArrayValue(value); + break; + case objectValue: { + Value::Members members(value.getMemberNames()); + if (members.empty()) + pushValue("{}"); + else { + writeWithIndent("{"); + indent(); + auto it = members.begin(); + for (;;) { + const String& name = *it; + const Value& childValue = value[name]; + writeCommentBeforeValue(childValue); + writeWithIndent(valueToQuotedString(name.c_str())); + *document_ << " : "; + writeValue(childValue); + if (++it == members.end()) { + writeCommentAfterValueOnSameLine(childValue); + break; + } + *document_ << ","; + writeCommentAfterValueOnSameLine(childValue); + } + unindent(); + writeWithIndent("}"); + } + } break; + } +} + +void StyledStreamWriter::writeArrayValue(const Value& value) { + unsigned size = value.size(); + if (size == 0) + pushValue("[]"); + else { + bool isArrayMultiLine = isMultilineArray(value); + if (isArrayMultiLine) { + writeWithIndent("["); + indent(); + bool hasChildValue = !childValues_.empty(); + unsigned index = 0; + for (;;) { + const Value& childValue = value[index]; + writeCommentBeforeValue(childValue); + if (hasChildValue) + writeWithIndent(childValues_[index]); + else { + if (!indented_) + writeIndent(); + indented_ = true; + writeValue(childValue); + indented_ = false; + } + if (++index == size) { + writeCommentAfterValueOnSameLine(childValue); + break; + } + *document_ << ","; + writeCommentAfterValueOnSameLine(childValue); + } + unindent(); + writeWithIndent("]"); + } else // output on a single line + { + assert(childValues_.size() == size); + *document_ << "[ "; + for (unsigned index = 0; index < size; ++index) { + if (index > 0) + *document_ << ", "; + *document_ << childValues_[index]; + } + *document_ << " ]"; + } + } +} + +bool StyledStreamWriter::isMultilineArray(const Value& value) { + ArrayIndex const size = value.size(); + bool isMultiLine = size * 3 >= rightMargin_; + childValues_.clear(); + for (ArrayIndex index = 0; index < size && !isMultiLine; ++index) { + const Value& childValue = value[index]; + isMultiLine = ((childValue.isArray() || childValue.isObject()) && + !childValue.empty()); + } + if (!isMultiLine) // check if line length > max line length + { + childValues_.reserve(size); + addChildValues_ = true; + ArrayIndex lineLength = 4 + (size - 1) * 2; // '[ ' + ', '*n + ' ]' + for (ArrayIndex index = 0; index < size; ++index) { + if (hasCommentForValue(value[index])) { + isMultiLine = true; + } + writeValue(value[index]); + lineLength += static_cast(childValues_[index].length()); + } + addChildValues_ = false; + isMultiLine = isMultiLine || lineLength >= rightMargin_; + } + return isMultiLine; +} + +void StyledStreamWriter::pushValue(const String& value) { + if (addChildValues_) + childValues_.push_back(value); + else + *document_ << value; +} + +void StyledStreamWriter::writeIndent() { + // blep intended this to look at the so-far-written string + // to determine whether we are already indented, but + // with a stream we cannot do that. So we rely on some saved state. + // The caller checks indented_. + *document_ << '\n' << indentString_; +} + +void StyledStreamWriter::writeWithIndent(const String& value) { + if (!indented_) + writeIndent(); + *document_ << value; + indented_ = false; +} + +void StyledStreamWriter::indent() { indentString_ += indentation_; } + +void StyledStreamWriter::unindent() { + assert(indentString_.size() >= indentation_.size()); + indentString_.resize(indentString_.size() - indentation_.size()); +} + +void StyledStreamWriter::writeCommentBeforeValue(const Value& root) { + if (!root.hasComment(commentBefore)) + return; + + if (!indented_) + writeIndent(); + const String& comment = root.getComment(commentBefore); + String::const_iterator iter = comment.begin(); + while (iter != comment.end()) { + *document_ << *iter; + if (*iter == '\n' && ((iter + 1) != comment.end() && *(iter + 1) == '/')) + // writeIndent(); // would include newline + *document_ << indentString_; + ++iter; + } + indented_ = false; +} + +void StyledStreamWriter::writeCommentAfterValueOnSameLine(const Value& root) { + if (root.hasComment(commentAfterOnSameLine)) + *document_ << ' ' << root.getComment(commentAfterOnSameLine); + + if (root.hasComment(commentAfter)) { + writeIndent(); + *document_ << root.getComment(commentAfter); + } + indented_ = false; +} + +bool StyledStreamWriter::hasCommentForValue(const Value& value) { + return value.hasComment(commentBefore) || + value.hasComment(commentAfterOnSameLine) || + value.hasComment(commentAfter); +} + +////////////////////////// +// BuiltStyledStreamWriter + +/// Scoped enums are not available until C++11. +struct CommentStyle { + /// Decide whether to write comments. + enum Enum { + None, ///< Drop all comments. + Most, ///< Recover odd behavior of previous versions (not implemented yet). + All ///< Keep all comments. + }; +}; + +struct BuiltStyledStreamWriter : public StreamWriter { + BuiltStyledStreamWriter(String indentation, CommentStyle::Enum cs, + String colonSymbol, String nullSymbol, + String endingLineFeedSymbol, bool useSpecialFloats, + bool emitUTF8, unsigned int precision, + PrecisionType precisionType); + int write(Value const& root, OStream* sout) override; + +private: + void writeValue(Value const& value); + void writeArrayValue(Value const& value); + bool isMultilineArray(Value const& value); + void pushValue(String const& value); + void writeIndent(); + void writeWithIndent(String const& value); + void indent(); + void unindent(); + void writeCommentBeforeValue(Value const& root); + void writeCommentAfterValueOnSameLine(Value const& root); + static bool hasCommentForValue(const Value& value); + + using ChildValues = std::vector; + + ChildValues childValues_; + String indentString_; + unsigned int rightMargin_; + String indentation_; + CommentStyle::Enum cs_; + String colonSymbol_; + String nullSymbol_; + String endingLineFeedSymbol_; + bool addChildValues_ : 1; + bool indented_ : 1; + bool useSpecialFloats_ : 1; + bool emitUTF8_ : 1; + unsigned int precision_; + PrecisionType precisionType_; +}; +BuiltStyledStreamWriter::BuiltStyledStreamWriter( + String indentation, CommentStyle::Enum cs, String colonSymbol, + String nullSymbol, String endingLineFeedSymbol, bool useSpecialFloats, + bool emitUTF8, unsigned int precision, PrecisionType precisionType) + : rightMargin_(74), indentation_(std::move(indentation)), cs_(cs), + colonSymbol_(std::move(colonSymbol)), nullSymbol_(std::move(nullSymbol)), + endingLineFeedSymbol_(std::move(endingLineFeedSymbol)), + addChildValues_(false), indented_(false), + useSpecialFloats_(useSpecialFloats), emitUTF8_(emitUTF8), + precision_(precision), precisionType_(precisionType) {} +int BuiltStyledStreamWriter::write(Value const& root, OStream* sout) { + sout_ = sout; + addChildValues_ = false; + indented_ = true; + indentString_.clear(); + writeCommentBeforeValue(root); + if (!indented_) + writeIndent(); + indented_ = true; + writeValue(root); + writeCommentAfterValueOnSameLine(root); + *sout_ << endingLineFeedSymbol_; + sout_ = nullptr; + return 0; +} +void BuiltStyledStreamWriter::writeValue(Value const& value) { + switch (value.type()) { + case nullValue: + pushValue(nullSymbol_); + break; + case intValue: + pushValue(valueToString(value.asLargestInt())); + break; + case uintValue: + pushValue(valueToString(value.asLargestUInt())); + break; + case realValue: + pushValue(valueToString(value.asDouble(), useSpecialFloats_, precision_, + precisionType_)); + break; + case stringValue: { + // Is NULL is possible for value.string_? No. + char const* str; + char const* end; + bool ok = value.getString(&str, &end); + if (ok) + pushValue( + valueToQuotedStringN(str, static_cast(end - str), emitUTF8_)); + else + pushValue(""); + break; + } + case booleanValue: + pushValue(valueToString(value.asBool())); + break; + case arrayValue: + writeArrayValue(value); + break; + case objectValue: { + Value::Members members(value.getMemberNames()); + if (members.empty()) + pushValue("{}"); + else { + writeWithIndent("{"); + indent(); + auto it = members.begin(); + for (;;) { + String const& name = *it; + Value const& childValue = value[name]; + writeCommentBeforeValue(childValue); + writeWithIndent( + valueToQuotedStringN(name.data(), name.length(), emitUTF8_)); + *sout_ << colonSymbol_; + writeValue(childValue); + if (++it == members.end()) { + writeCommentAfterValueOnSameLine(childValue); + break; + } + *sout_ << ","; + writeCommentAfterValueOnSameLine(childValue); + } + unindent(); + writeWithIndent("}"); + } + } break; + } +} + +void BuiltStyledStreamWriter::writeArrayValue(Value const& value) { + unsigned size = value.size(); + if (size == 0) + pushValue("[]"); + else { + bool isMultiLine = (cs_ == CommentStyle::All) || isMultilineArray(value); + if (isMultiLine) { + writeWithIndent("["); + indent(); + bool hasChildValue = !childValues_.empty(); + unsigned index = 0; + for (;;) { + Value const& childValue = value[index]; + writeCommentBeforeValue(childValue); + if (hasChildValue) + writeWithIndent(childValues_[index]); + else { + if (!indented_) + writeIndent(); + indented_ = true; + writeValue(childValue); + indented_ = false; + } + if (++index == size) { + writeCommentAfterValueOnSameLine(childValue); + break; + } + *sout_ << ","; + writeCommentAfterValueOnSameLine(childValue); + } + unindent(); + writeWithIndent("]"); + } else // output on a single line + { + assert(childValues_.size() == size); + *sout_ << "["; + if (!indentation_.empty()) + *sout_ << " "; + for (unsigned index = 0; index < size; ++index) { + if (index > 0) + *sout_ << ((!indentation_.empty()) ? ", " : ","); + *sout_ << childValues_[index]; + } + if (!indentation_.empty()) + *sout_ << " "; + *sout_ << "]"; + } + } +} + +bool BuiltStyledStreamWriter::isMultilineArray(Value const& value) { + ArrayIndex const size = value.size(); + bool isMultiLine = size * 3 >= rightMargin_; + childValues_.clear(); + for (ArrayIndex index = 0; index < size && !isMultiLine; ++index) { + Value const& childValue = value[index]; + isMultiLine = ((childValue.isArray() || childValue.isObject()) && + !childValue.empty()); + } + if (!isMultiLine) // check if line length > max line length + { + childValues_.reserve(size); + addChildValues_ = true; + ArrayIndex lineLength = 4 + (size - 1) * 2; // '[ ' + ', '*n + ' ]' + for (ArrayIndex index = 0; index < size; ++index) { + if (hasCommentForValue(value[index])) { + isMultiLine = true; + } + writeValue(value[index]); + lineLength += static_cast(childValues_[index].length()); + } + addChildValues_ = false; + isMultiLine = isMultiLine || lineLength >= rightMargin_; + } + return isMultiLine; +} + +void BuiltStyledStreamWriter::pushValue(String const& value) { + if (addChildValues_) + childValues_.push_back(value); + else + *sout_ << value; +} + +void BuiltStyledStreamWriter::writeIndent() { + // blep intended this to look at the so-far-written string + // to determine whether we are already indented, but + // with a stream we cannot do that. So we rely on some saved state. + // The caller checks indented_. + + if (!indentation_.empty()) { + // In this case, drop newlines too. + *sout_ << '\n' << indentString_; + } +} + +void BuiltStyledStreamWriter::writeWithIndent(String const& value) { + if (!indented_) + writeIndent(); + *sout_ << value; + indented_ = false; +} + +void BuiltStyledStreamWriter::indent() { indentString_ += indentation_; } + +void BuiltStyledStreamWriter::unindent() { + assert(indentString_.size() >= indentation_.size()); + indentString_.resize(indentString_.size() - indentation_.size()); +} + +void BuiltStyledStreamWriter::writeCommentBeforeValue(Value const& root) { + if (cs_ == CommentStyle::None) + return; + if (!root.hasComment(commentBefore)) + return; + + if (!indented_) + writeIndent(); + const String& comment = root.getComment(commentBefore); + String::const_iterator iter = comment.begin(); + while (iter != comment.end()) { + *sout_ << *iter; + if (*iter == '\n' && ((iter + 1) != comment.end() && *(iter + 1) == '/')) + // writeIndent(); // would write extra newline + *sout_ << indentString_; + ++iter; + } + indented_ = false; +} + +void BuiltStyledStreamWriter::writeCommentAfterValueOnSameLine( + Value const& root) { + if (cs_ == CommentStyle::None) + return; + if (root.hasComment(commentAfterOnSameLine)) + *sout_ << " " + root.getComment(commentAfterOnSameLine); + + if (root.hasComment(commentAfter)) { + writeIndent(); + *sout_ << root.getComment(commentAfter); + } +} + +// static +bool BuiltStyledStreamWriter::hasCommentForValue(const Value& value) { + return value.hasComment(commentBefore) || + value.hasComment(commentAfterOnSameLine) || + value.hasComment(commentAfter); +} + +/////////////// +// StreamWriter + +StreamWriter::StreamWriter() : sout_(nullptr) {} +StreamWriter::~StreamWriter() = default; +StreamWriter::Factory::~Factory() = default; +StreamWriterBuilder::StreamWriterBuilder() { setDefaults(&settings_); } +StreamWriterBuilder::~StreamWriterBuilder() = default; +StreamWriter* StreamWriterBuilder::newStreamWriter() const { + const String indentation = settings_["indentation"].asString(); + const String cs_str = settings_["commentStyle"].asString(); + const String pt_str = settings_["precisionType"].asString(); + const bool eyc = settings_["enableYAMLCompatibility"].asBool(); + const bool dnp = settings_["dropNullPlaceholders"].asBool(); + const bool usf = settings_["useSpecialFloats"].asBool(); + const bool emitUTF8 = settings_["emitUTF8"].asBool(); + unsigned int pre = settings_["precision"].asUInt(); + CommentStyle::Enum cs = CommentStyle::All; + if (cs_str == "All") { + cs = CommentStyle::All; + } else if (cs_str == "None") { + cs = CommentStyle::None; + } else { + throwRuntimeError("commentStyle must be 'All' or 'None'"); + } + PrecisionType precisionType(significantDigits); + if (pt_str == "significant") { + precisionType = PrecisionType::significantDigits; + } else if (pt_str == "decimal") { + precisionType = PrecisionType::decimalPlaces; + } else { + throwRuntimeError("precisionType must be 'significant' or 'decimal'"); + } + String colonSymbol = " : "; + if (eyc) { + colonSymbol = ": "; + } else if (indentation.empty()) { + colonSymbol = ":"; + } + String nullSymbol = "null"; + if (dnp) { + nullSymbol.clear(); + } + if (pre > 17) + pre = 17; + String endingLineFeedSymbol; + return new BuiltStyledStreamWriter(indentation, cs, colonSymbol, nullSymbol, + endingLineFeedSymbol, usf, emitUTF8, pre, + precisionType); +} + +bool StreamWriterBuilder::validate(Json::Value* invalid) const { + static const auto& valid_keys = *new std::set{ + "indentation", + "commentStyle", + "enableYAMLCompatibility", + "dropNullPlaceholders", + "useSpecialFloats", + "emitUTF8", + "precision", + "precisionType", + }; + for (auto si = settings_.begin(); si != settings_.end(); ++si) { + auto key = si.name(); + if (valid_keys.count(key)) + continue; + if (invalid) + (*invalid)[key] = *si; + else + return false; + } + return invalid ? invalid->empty() : true; +} + +Value& StreamWriterBuilder::operator[](const String& key) { + return settings_[key]; +} +// static +void StreamWriterBuilder::setDefaults(Json::Value* settings) { + //! [StreamWriterBuilderDefaults] + (*settings)["commentStyle"] = "All"; + (*settings)["indentation"] = "\t"; + (*settings)["enableYAMLCompatibility"] = false; + (*settings)["dropNullPlaceholders"] = false; + (*settings)["useSpecialFloats"] = false; + (*settings)["emitUTF8"] = false; + (*settings)["precision"] = 17; + (*settings)["precisionType"] = "significant"; + //! [StreamWriterBuilderDefaults] +} + +String writeString(StreamWriter::Factory const& factory, Value const& root) { + OStringStream sout; + StreamWriterPtr const writer(factory.newStreamWriter()); + writer->write(root, &sout); + return sout.str(); +} + +OStream& operator<<(OStream& sout, Value const& root) { + StreamWriterBuilder builder; + StreamWriterPtr const writer(builder.newStreamWriter()); + writer->write(root, &sout); + return sout; +} + +} // namespace Json diff --git a/toolkit/components/jsoncpp/src/lib_json/moz.build b/toolkit/components/jsoncpp/src/lib_json/moz.build new file mode 100644 index 0000000000..5f3275b03c --- /dev/null +++ b/toolkit/components/jsoncpp/src/lib_json/moz.build @@ -0,0 +1,39 @@ +# -*- Mode: python; indent-tabs-mode: nil; tab-width: 40 -*- +# vim: set filetype=python: +# This Source Code Form is subject to the terms of the Mozilla Public +# License, v. 2.0. If a copy of the MPL was not distributed with this +# file, You can obtain one at http://mozilla.org/MPL/2.0/. + +UNIFIED_SOURCES += [ + 'json_reader.cpp', + 'json_value.cpp', + 'json_writer.cpp' +] + +LOCAL_INCLUDES += [ + '/toolkit/components/jsoncpp/include', +] + +# Required because JsonCpp is linked outside libxul. +DisableStlWrapping() + +Library('jsoncpp') + +# Suppress warnings in third-party code. +if CONFIG['CC_TYPE'] == 'clang-cl': + CXXFLAGS += [ + '-Wno-macro-redefined', + ] +elif CONFIG['CC_TYPE'] in ('clang', 'gcc'): + CXXFLAGS += [ + '-Wno-unused-local-typedefs', + ] + +if CONFIG['CC_TYPE'] in ('clang', 'clang-cl'): + CXXFLAGS += [ + '-Wno-c++11-narrowing', + ] + +CXXFLAGS += [ + '-Wno-implicit-fallthrough', +] -- cgit v1.2.3