mirror of
https://github.com/vcmi/vcmi.git
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145 lines
3.1 KiB
C++
145 lines
3.1 KiB
C++
/*
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* JsonWriter.cpp, part of VCMI engine
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*
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* Authors: listed in file AUTHORS in main folder
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*
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* License: GNU General Public License v2.0 or later
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* Full text of license available in license.txt file, in main folder
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*
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*/
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#include "StdInc.h"
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#include "JsonWriter.h"
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VCMI_LIB_NAMESPACE_BEGIN
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template<typename Iterator>
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void JsonWriter::writeContainer(Iterator begin, Iterator end)
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{
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if(begin == end)
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return;
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prefix += '\t';
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writeEntry(begin++);
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while(begin != end)
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{
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out << (compactMode ? ", " : ",\n");
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writeEntry(begin++);
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}
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out << (compactMode ? "" : "\n");
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prefix.resize(prefix.size() - 1);
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}
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void JsonWriter::writeEntry(JsonMap::const_iterator entry)
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{
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if(!compactMode)
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{
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if(!entry->second.getModScope().empty())
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out << prefix << " // " << entry->second.getModScope() << "\n";
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out << prefix;
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}
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writeString(entry->first);
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out << " : ";
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writeNode(entry->second);
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}
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void JsonWriter::writeEntry(JsonVector::const_iterator entry)
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{
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if(!compactMode)
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{
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if(!entry->getModScope().empty())
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out << prefix << " // " << entry->getModScope() << "\n";
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out << prefix;
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}
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writeNode(*entry);
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}
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void JsonWriter::writeString(const std::string & string)
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{
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static const std::string escaped = "\"\\\b\f\n\r\t";
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static const std::array escapedCode = {'\"', '\\', 'b', 'f', 'n', 'r', 't'};
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out << '\"';
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size_t pos = 0;
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size_t start = 0;
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for(; pos < string.size(); pos++)
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{
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//we need to check if special character was been already escaped
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if((string[pos] == '\\') && (pos + 1 < string.size()) && (std::find(escapedCode.begin(), escapedCode.end(), string[pos + 1]) != escapedCode.end()))
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{
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pos++; //write unchanged, next simbol also checked
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}
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else
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{
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size_t escapedPos = escaped.find(string[pos]);
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if(escapedPos != std::string::npos)
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{
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out.write(string.data() + start, pos - start);
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out << '\\' << escapedCode[escapedPos];
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start = pos + 1;
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}
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}
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}
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out.write(string.data() + start, pos - start);
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out << '\"';
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}
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void JsonWriter::writeNode(const JsonNode & node)
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{
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bool originalMode = compactMode;
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if(compact && !compactMode && node.isCompact())
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compactMode = true;
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switch(node.getType())
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{
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case JsonNode::JsonType::DATA_NULL:
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out << "null";
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break;
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case JsonNode::JsonType::DATA_BOOL:
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if(node.Bool())
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out << "true";
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else
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out << "false";
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break;
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case JsonNode::JsonType::DATA_FLOAT:
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out << node.Float();
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break;
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case JsonNode::JsonType::DATA_STRING:
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writeString(node.String());
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break;
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case JsonNode::JsonType::DATA_VECTOR:
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out << "[" << (compactMode ? " " : "\n");
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writeContainer(node.Vector().begin(), node.Vector().end());
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out << (compactMode ? " " : prefix) << "]";
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break;
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case JsonNode::JsonType::DATA_STRUCT:
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out << "{" << (compactMode ? " " : "\n");
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writeContainer(node.Struct().begin(), node.Struct().end());
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out << (compactMode ? " " : prefix) << "}";
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break;
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case JsonNode::JsonType::DATA_INTEGER:
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out << node.Integer();
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break;
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}
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compactMode = originalMode;
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}
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JsonWriter::JsonWriter(std::ostream & output, bool compact)
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: out(output)
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, compact(compact)
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{
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}
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VCMI_LIB_NAMESPACE_END
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