mirror of https://github.com/odrling/Aegisub
126 lines
2.7 KiB
C++
126 lines
2.7 KiB
C++
/**********************************************
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License: BSD
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Project Webpage: http://cajun-jsonapi.sourceforge.net/
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Author: Terry Caton
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***********************************************/
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#include "libaegisub/cajun/writer.h"
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#include <cmath>
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#include <iomanip>
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/*
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TODO:
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* better documentation
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* unicode character encoding
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*/
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namespace json {
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Writer::Writer(std::ostream& ostr) : m_ostr(ostr) { }
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void Writer::Write(Array const& array) {
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if (array.empty())
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m_ostr << "[]";
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else {
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m_ostr << '[' << std::endl;
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++tab_depth;
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Array::const_iterator it(array.begin()), itend(array.end());
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while (it != itend) {
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m_ostr << std::string(tab_depth, '\t');
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Write(*it);
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if (++it != itend)
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m_ostr << ',';
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m_ostr << std::endl;
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}
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--tab_depth;
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m_ostr << std::string(tab_depth, '\t') << ']';
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}
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}
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void Writer::Write(Object const& object) {
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if (object.empty())
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m_ostr << "{}";
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else {
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m_ostr << '{' << std::endl;
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++tab_depth;
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Object::const_iterator it(object.begin()), itend(object.end());
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while (it != itend) {
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m_ostr << std::string(tab_depth, '\t');
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Write(it->first);
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m_ostr << " : ";
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Write(it->second);
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if (++it != itend)
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m_ostr << ',';
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m_ostr << std::endl;
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}
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--tab_depth;
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m_ostr << std::string(tab_depth, '\t') << '}';
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}
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}
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void Writer::Write(Double const& numberElement) {
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m_ostr << std::setprecision(20) << numberElement;
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double unused;
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if (!std::modf(numberElement, &unused))
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m_ostr << ".0";
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}
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void Writer::Write(Integer const& numberElement) {
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m_ostr << numberElement;
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}
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void Writer::Write(Boolean const& booleanElement) {
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m_ostr << (booleanElement ? "true" : "false");
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}
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void Writer::Write(String const& stringElement) {
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m_ostr << '"';
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std::string::const_iterator it(stringElement.begin()), itend(stringElement.end());
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for (; it != itend; ++it) {
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switch (*it) {
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case '"': m_ostr << "\\\""; break;
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case '\\': m_ostr << "\\\\"; break;
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case '\b': m_ostr << "\\b"; break;
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case '\f': m_ostr << "\\f"; break;
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case '\n': m_ostr << "\\n"; break;
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case '\r': m_ostr << "\\r"; break;
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case '\t': m_ostr << "\\t"; break;
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default: m_ostr << *it; break;
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}
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}
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m_ostr << '"';
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}
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void Writer::Write(Null const&) {
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m_ostr << "null";
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}
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void Writer::Write(UnknownElement const& unknown) {
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unknown.Accept(*this);
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}
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void Writer::Visit(Array const& array) { Write(array); }
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void Writer::Visit(Object const& object) { Write(object); }
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void Writer::Visit(Integer const& integer) { Write(integer); }
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void Writer::Visit(Double const& dbl) { Write(dbl); }
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void Writer::Visit(String const& string) { Write(string); }
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void Writer::Visit(Boolean const& boolean) { Write(boolean); }
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void Writer::Visit(Null const& null) { Write(null); }
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} // end namespace
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