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-rw-r--r--toolkit/components/jsoncpp/src/lib_json/json_reader.cpp1992
-rw-r--r--toolkit/components/jsoncpp/src/lib_json/json_tool.h138
-rw-r--r--toolkit/components/jsoncpp/src/lib_json/json_value.cpp1634
-rw-r--r--toolkit/components/jsoncpp/src/lib_json/json_valueiterator.inl156
-rw-r--r--toolkit/components/jsoncpp/src/lib_json/json_writer.cpp1259
-rw-r--r--toolkit/components/jsoncpp/src/lib_json/moz.build39
6 files changed, 5218 insertions, 0 deletions
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 <json/assertions.h>
+#include <json/reader.h>
+#include <json/value.h>
+#endif // if !defined(JSON_IS_AMALGAMATION)
+#include <algorithm>
+#include <cassert>
+#include <cstring>
+#include <iostream>
+#include <istream>
+#include <limits>
+#include <memory>
+#include <set>
+#include <sstream>
+#include <utility>
+
+#include <cstdio>
+#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<CharReader>;
+#else
+using CharReaderPtr = std::auto_ptr<CharReader>;
+#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<char> begin(is);
+ // std::istream_iterator<char> 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<char>(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_ = &currentValue();
+ }
+
+ 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<size_t>(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<Value::UInt>(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<size_t>(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<unsigned int>(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::StructuredError> Reader::getStructuredErrors() const {
+ std::vector<Reader::StructuredError> 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<StructuredError> 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<ErrorInfo>;
+
+ 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<Value*>;
+
+ 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<double>::quiet_NaN());
+ currentValue().swapPayload(v);
+ currentValue().setOffsetStart(token.start_ - begin_);
+ currentValue().setOffsetLimit(token.end_ - begin_);
+ } break;
+ case tokenPosInf: {
+ Value v(std::numeric_limits<double>::infinity());
+ currentValue().swapPayload(v);
+ currentValue().setOffsetStart(token.start_ - begin_);
+ currentValue().setOffsetLimit(token.end_ - begin_);
+ } break;
+ case tokenNegInf: {
+ Value v(-std::numeric_limits<double>::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_ = &currentValue();
+ }
+
+ 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<size_t>(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<Value::UInt>(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::UInt>(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<size_t>(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<unsigned int>(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::StructuredError> OurReader::getStructuredErrors() const {
+ std::vector<OurReader::StructuredError> 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<size_t>(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<String>{
+ "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 <json/config.h>
+#endif
+
+// Also support old flag NO_LOCALE_SUPPORT
+#ifdef NO_LOCALE_SUPPORT
+#define JSONCPP_NO_LOCALE_SUPPORT
+#endif
+
+#ifndef JSONCPP_NO_LOCALE_SUPPORT
+#include <clocale>
+#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<char>(cp);
+ } else if (cp <= 0x7FF) {
+ result.resize(2);
+ result[1] = static_cast<char>(0x80 | (0x3f & cp));
+ result[0] = static_cast<char>(0xC0 | (0x1f & (cp >> 6)));
+ } else if (cp <= 0xFFFF) {
+ result.resize(3);
+ result[2] = static_cast<char>(0x80 | (0x3f & cp));
+ result[1] = static_cast<char>(0x80 | (0x3f & (cp >> 6)));
+ result[0] = static_cast<char>(0xE0 | (0xf & (cp >> 12)));
+ } else if (cp <= 0x10FFFF) {
+ result.resize(4);
+ result[3] = static_cast<char>(0x80 | (0x3f & cp));
+ result[2] = static_cast<char>(0x80 | (0x3f & (cp >> 6)));
+ result[1] = static_cast<char>(0x80 | (0x3f & (cp >> 12)));
+ result[0] = static_cast<char>(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<char>(value % 10U + static_cast<unsigned>('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 <typename Iter> Iter fixNumericLocale(Iter begin, Iter end) {
+ for (; begin != end; ++begin) {
+ if (*begin == ',') {
+ *begin = '.';
+ }
+ }
+ return begin;
+}
+
+template <typename Iter> 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 <typename Iter>
+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 <json/assertions.h>
+#include <json/value.h>
+#include <json/writer.h>
+#endif // if !defined(JSON_IS_AMALGAMATION)
+#include <algorithm>
+#include <cassert>
+#include <cmath>
+#include <cstddef>
+#include <cstring>
+#include <iostream>
+#include <sstream>
+#include <utility>
+
+// Provide implementation equivalent of std::snprintf for older _MSC compilers
+#if defined(_MSC_VER) && _MSC_VER < 1900
+#include <stdarg.h>
+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 <typename T>
+static std::unique_ptr<T> cloneUnique(const std::unique_ptr<T>& p) {
+ std::unique_ptr<T> r;
+ if (p) {
+ r = std::unique_ptr<T>(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 <typename T, typename U>
+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<double>(min) && d <= static_cast<double>(max);
+}
+#else // if !defined(JSON_USE_INT64_DOUBLE_CONVERSION)
+static inline double integerToDouble(Json::UInt64 value) {
+ return static_cast<double>(Int64(value / 2)) * 2.0 +
+ static_cast<double>(Int64(value & 1));
+}
+
+template <typename T> static inline double integerToDouble(T value) {
+ return static_cast<double>(value);
+}
+
+template <typename T, typename U>
+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<size_t>(Value::maxInt))
+ length = Value::maxInt - 1;
+
+ auto newString = static_cast<char*>(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<unsigned>(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<char*>(malloc(actualLength));
+ if (newString == nullptr) {
+ throwRuntimeError("in Json::Value::duplicateAndPrefixStringValue(): "
+ "Failed to allocate string value buffer");
+ }
+ *reinterpret_cast<unsigned*>(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<unsigned>(strlen(prefixed));
+ *value = prefixed;
+ } else {
+ *length = *reinterpret_cast<unsigned const*>(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<unsigned>(
+ other.cstr_
+ ? (static_cast<DuplicationPolicy>(other.storage_.policy_) ==
+ noDuplication
+ ? noDuplication
+ : duplicate)
+ : static_cast<DuplicationPolicy>(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<char*>(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<unsigned>(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<char*>(static_cast<char const*>(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<unsigned>(strlen(value)));
+}
+
+Value::Value(const char* begin, const char* end) {
+ initBasic(stringValue, true);
+ value_.string_ =
+ duplicateAndPrefixStringValue(begin, static_cast<unsigned>(end - begin));
+}
+
+Value::Value(const String& value) {
+ initBasic(stringValue, true);
+ value_.string_ = duplicateAndPrefixStringValue(
+ value.data(), static_cast<unsigned>(value.length()));
+}
+
+Value::Value(const StaticString& value) {
+ initBasic(stringValue);
+ value_.string_ = const_cast<char*>(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<ValueType>(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<unsigned>(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<double>(value_.int_);
+ case uintValue:
+#if !defined(JSON_USE_INT64_DOUBLE_CONVERSION)
+ return static_cast<double>(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<float>(value_.int_);
+ case uintValue:
+#if !defined(JSON_USE_INT64_DOUBLE_CONVERSION)
+ return static_cast<float>(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<float>(integerToDouble(value_.uint_));
+#endif // if !defined(JSON_USE_INT64_DOUBLE_CONVERSION)
+ case realValue:
+ return static_cast<float>(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<unsigned>(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<unsigned>(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<unsigned>(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<unsigned>(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<Array>(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 <json/writer.h>
+#endif // if !defined(JSON_IS_AMALGAMATION)
+#include <algorithm>
+#include <cassert>
+#include <cctype>
+#include <cstring>
+#include <iomanip>
+#include <memory>
+#include <set>
+#include <sstream>
+#include <utility>
+
+#if __cplusplus >= 201103L
+#include <cmath>
+#include <cstdio>
+
+#if !defined(isnan)
+#define isnan std::isnan
+#endif
+
+#if !defined(isfinite)
+#define isfinite std::isfinite
+#endif
+
+#else
+#include <cmath>
+#include <cstdio>
+
+#if defined(_MSC_VER)
+#if !defined(isnan)
+#include <float.h>
+#define isnan _isnan
+#endif
+
+#if !defined(isfinite)
+#include <float.h>
+#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 <ieeefp.h>
+#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<StreamWriter>;
+#else
+using StreamWriterPtr = std::auto_ptr<StreamWriter>;
+#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<size_t>(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<unsigned char>(*s);
+
+ if (firstByte < 0x80)
+ return firstByte;
+
+ if (firstByte < 0xE0) {
+ if (e - s < 2)
+ return REPLACEMENT_CHARACTER;
+
+ unsigned int calculated =
+ ((firstByte & 0x1F) << 6) | (static_cast<unsigned int>(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<unsigned int>(s[1]) & 0x3F) << 6) |
+ (static_cast<unsigned int>(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<unsigned int>(s[1]) & 0x3F) << 12) |
+ ((static_cast<unsigned int>(s[2]) & 0x3F) << 6) |
+ (static_cast<unsigned int>(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<char>(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 </
+ // sequence.
+ // Should add a flag to allow this compatibility mode and prevent this
+ // sequence from occurring.
+ default: {
+ if (emitUTF8) {
+ unsigned codepoint = static_cast<unsigned char>(*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<size_t>(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<size_t>(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<ArrayIndex>(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<size_t>(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<ArrayIndex>(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<String>;
+
+ 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<size_t>(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<ArrayIndex>(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<String>{
+ "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',
+]
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-20 04:44:20 +0000