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Stringifier.cpp
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128 lines (118 loc) · 3.2 KB
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//
// Stringifier.cpp
//
// $Id$
//
// Library: JSON
// Package: JSON
// Module: Stringifier
//
// Copyright (c) 2012, Applied Informatics Software Engineering GmbH.
// and Contributors.
//
// Permission is hereby granted, free of charge, to any person or organization
// obtaining a copy of the software and accompanying documentation covered by
// this license (the "Software") to use, reproduce, display, distribute,
// execute, and transmit the Software, and to prepare derivative works of the
// Software, and to permit third-parties to whom the Software is furnished to
// do so, all subject to the following:
//
// The copyright notices in the Software and this entire statement, including
// the above license grant, this restriction and the following disclaimer,
// must be included in all copies of the Software, in whole or in part, and
// all derivative works of the Software, unless such copies or derivative
// works are solely in the form of machine-executable object code generated by
// a source language processor.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
// SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
// FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
// ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
//
#include "Poco/JSON/Stringifier.h"
#include "Poco/JSON/Array.h"
#include "Poco/JSON/Object.h"
#include <iomanip>
using Poco::Dynamic::Var;
namespace Poco {
namespace JSON {
void Stringifier::stringify(const Var& any, std::ostream& out, unsigned int indent)
{
if ( any.type() == typeid(Object) )
{
const Object& o = any.extract<Object>();
o.stringify(out, indent == 0 ? 0 : indent + 2);
}
else if ( any.type() == typeid(Array) )
{
const Array& a = any.extract<Array>();
a.stringify(out, indent == 0 ? 0 : indent + 2);
}
else if ( any.type() == typeid(Object::Ptr) )
{
const Object::Ptr& o = any.extract<Object::Ptr>();
o->stringify(out, indent == 0 ? 0 : indent + 2);
}
else if ( any.type() == typeid(Array::Ptr) )
{
const Array::Ptr& a = any.extract<Array::Ptr>();
a->stringify(out, indent == 0 ? 0 : indent + 2);
}
else if ( any.isEmpty() )
{
out << "null";
}
else if ( any.isString() )
{
out << '"';
std::string value = any.convert<std::string>();
for(std::string::const_iterator it = value.begin(); it != value.end(); ++it)
{
switch (*it)
{
case '"':
out << "\\\"";
break;
case '\\':
out << "\\\\";
break;
case '\b':
out << "\\b";
break;
case '\f':
out << "\\f";
break;
case '\n':
out << "\\n";
break;
case '\r':
out << "\\r";
break;
case '\t':
out << "\\t";
break;
default:
{
if ( *it > 0 && *it <= 0x1F )
{
out << "\\u" << std::hex << std::uppercase << std::setfill('0') << std::setw(4) << static_cast<int>(*it);
}
else
{
out << *it;
}
break;
}
}
}
out << '"';
}
else
{
out << any.convert<std::string>();
}
}
} } // Namespace Poco::JSON