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qBittorrent/src/json.cpp
2008-09-27 20:32:59 +00:00

104 lines
2.3 KiB
C++

/*
* Copyright (C) 2007 by Ishan Arora
* ishanarora@gmail.com
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the
* Free Software Foundation, Inc.,
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include "json.h"
QString toJson(QVariant v)
{
if (v.isNull())
return "null";
QString result;
switch(v.type())
{
case QVariant::Bool:
case QVariant::Double:
case QVariant::Int:
case QVariant::LongLong:
case QVariant::UInt:
case QVariant::ULongLong:
return v.value<QString>();
case QVariant::String:
{
QString s = v.value<QString>();
result = "\"";
for(int i=0; i<s.size(); i++)
{
QChar ch = s[i];
switch(ch.toAscii())
{
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 '\"':
case '\'':
case '\\':
case '&':
result += '\\';
case '\0':
default:
result += ch;
}
}
result += "\"";
return result;
}
case QVariant::List:
{
result = "[";
QListIterator<QVariant> it(v.value<QVariantList>());
while (it.hasNext())
result += toJson(it.next()) + ",";
if(result.size() > 1)
result.chop(1);
result += "]";
return result;
}
case QVariant::Map:
{
result = "{";
QMapIterator<QString, QVariant> it(v.value<QVariantMap>());
while (it.hasNext()) {
it.next();
if(it.value().isValid())
result += toJson(QVariant(it.key())) + ":" + toJson(it.value()) + ",";
}
if(result.size() > 1)
result.chop(1);
result += "}";
return result;
}
default:
return "undefined";
}
}