qBittorrent/src/json.h

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/*
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* Bittorrent Client using Qt4 and libtorrent.
* Copyright (C) 2006 Ishan Arora and Christophe Dumez
*
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* 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.
*
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* 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.
*
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* 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* In addition, as a special exception, the copyright holders give permission to
* link this program with the OpenSSL project's "OpenSSL" library (or with
* modified versions of it that use the same license as the "OpenSSL" library),
* and distribute the linked executables. You must obey the GNU General Public
* License in all respects for all of the code used other than "OpenSSL". If you
* modify file(s), you may extend this exception to your version of the file(s),
* but you are not obligated to do so. If you do not wish to do so, delete this
* exception statement from your version.
*
* Contact : chris@qbittorrent.org
*/
#ifndef JSON_H
#define JSON_H
#include <QVariant>
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namespace json {
QString toJson(QVariant v) {
if (v.isNull())
return "null";
switch(v.type())
{
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case QVariant::Bool:
case QVariant::Double:
case QVariant::Int:
case QVariant::LongLong:
case QVariant::UInt:
case QVariant::ULongLong:
return v.value<QString>();
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case QVariant::String:
{
QString s = v.value<QString>();
QString result = "\"";
for(int i=0; i<s.size(); i++)
{
QChar ch = s[i];
switch(ch.toAscii())
{
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case '\b':
result += "\\b";
break;
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case '\f':
result += "\\f";
break;
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case '\n':
result += "\\n";
break;
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case '\r':
result += "\\r";
break;
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case '\t':
result += "\\t";
break;
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case '\"':
case '\'':
case '\\':
case '&':
result += '\\';
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case '\0':
default:
result += ch;
}
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}
result += "\"";
return result;
}
default:
return "undefined";
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}
}
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QString toJson(QVariantMap m) {
QStringList vlist;
foreach(QString key, m.keys()) {
vlist << toJson(key)+":"+toJson(m[key]);
}
return "{"+vlist.join(",")+"}";
}
QVariantMap fromJson(QString json) {
QVariantMap m;
if(json.startsWith("{") && json.endsWith("}")) {
json.chop(1);
json = json.replace(0, 1, "");
QStringList couples = json.split(",");
foreach(QString couple, couples) {
QStringList parts = couple.split(":");
if(parts.size() != 2) continue;
QString key = parts.first();
if(key.startsWith("\"") && key.endsWith("\"")) {
key.chop(1);
key = key.replace(0, 1, "");
}
QString value_str = parts.last();
QVariant value;
if(value_str.startsWith("\"") && value_str.endsWith("\"")) {
value_str.chop(1);
value_str = value_str.replace(0, 1, "");
value = value_str;
} else {
value = value_str.toInt();
}
m.insert(key,value);
qDebug("%s:%s", key.toLocal8Bit().data(), value_str.toLocal8Bit().data());
}
}
return m;
}
QString toJson(QList<QVariantMap> v) {
QStringList res;
foreach(QVariantMap m, v) {
QStringList vlist;
foreach(QString key, m.keys()) {
vlist << toJson(key)+":"+toJson(m[key]);
}
res << "{"+vlist.join(",")+"}";
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}
return "["+res.join(",")+"]";
}
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}
#endif