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93 lines (80 loc) · 1.92 KB
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//
// Stringifier.cpp
//
// $Id$
//
// Library: JSON
// Package: JSON
// Module: Stringifier
//
// Copyright (c) 2012, Applied Informatics Software Engineering GmbH.
// and Contributors.
//
// SPDX-License-Identifier: BSL-1.0
//
#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, int step, bool preserveInsertionOrder)
{
if (step == -1) step = indent;
if ( any.type() == typeid(Object) )
{
const Object& o = any.extract<Object>();
o.stringify(out, indent == 0 ? 0 : indent, step);
}
else if ( any.type() == typeid(Array) )
{
const Array& a = any.extract<Array>();
a.stringify(out, indent == 0 ? 0 : indent, step);
}
else if ( any.type() == typeid(Object::Ptr) )
{
const Object::Ptr& o = any.extract<Object::Ptr>();
o->stringify(out, indent == 0 ? 0 : indent, step);
}
else if ( any.type() == typeid(Array::Ptr) )
{
const Array::Ptr& a = any.extract<Array::Ptr>();
a->stringify(out, indent == 0 ? 0 : indent, step);
}
else if ( any.isEmpty() )
{
out << "null";
}
else if ( any.isNumeric() || any.isBoolean() )
{
out << any.convert<std::string>();
}
else
{
std::string value = any.convert<std::string>();
formatString(value, out);
}
}
void Stringifier::formatString(const std::string& value, std::ostream& out)
{
out << '"';
for (std::string::const_iterator it = value.begin(),
end = value.end(); it != end; ++it)
{
switch (*it)
{
case '\\': out << "\\\\"; break;
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: out << *it; break;
}
}
out << '"';
}
} } // Namespace Poco::JSON