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/* Copyright 2013-2019 MultiMC Contributors
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "settings/INIFile.h"
#include <FileSystem.h>
#include <QFile>
#include <QTextStream>
#include <QStringList>
#include <QSaveFile>
#include <QDebug>
INIFile::INIFile()
{
}
QString INIFile::unescape(QString orig)
{
QString out;
QChar prev = 0;
for(auto c: orig)
{
if(prev == '\\')
{
if(c == 'n')
out += '\n';
else if(c == 't')
out += '\t';
else if(c == '#')
out += '#';
else
out += c;
prev = 0;
}
else
{
if(c == '\\')
{
prev = c;
continue;
}
out += c;
prev = 0;
}
}
return out;
}
QString INIFile::escape(QString orig)
{
QString out;
for(auto c: orig)
{
if(c == '\n')
out += "\\n";
else if (c == '\t')
out += "\\t";
else if(c == '\\')
out += "\\\\";
else if(c == '#')
out += "\\#";
else
out += c;
}
return out;
}
bool INIFile::saveFile(QString fileName)
{
QByteArray outArray;
for (Iterator iter = begin(); iter != end(); iter++)
{
QString value = iter.value().toString();
value = escape(value);
outArray.append(iter.key().toUtf8());
outArray.append('=');
outArray.append(value.toUtf8());
outArray.append('\n');
}
try
{
FS::write(fileName, outArray);
}
catch (const Exception &e)
{
qCritical() << e.what();
return false;
}
return true;
}
bool INIFile::loadFile(QString fileName)
{
QFile file(fileName);
if (!file.open(QIODevice::ReadOnly))
return false;
bool success = loadFile(file.readAll());
file.close();
return success;
}
bool INIFile::loadFile(QByteArray file)
{
QTextStream in(file);
in.setCodec("UTF-8");
QStringList lines = in.readAll().split('\n');
for (int i = 0; i < lines.count(); i++)
{
QString &lineRaw = lines[i];
// Ignore comments.
int commentIndex = 0;
QString line = lineRaw;
// Search for comments until no more escaped # are available
while((commentIndex = line.indexOf('#', commentIndex + 1)) != -1) {
if(commentIndex > 0 && line.at(commentIndex - 1) == '\\') {
continue;
}
line = line.left(lineRaw.indexOf('#')).trimmed();
}
int eqPos = line.indexOf('=');
if (eqPos == -1)
continue;
QString key = line.left(eqPos).trimmed();
QString valueStr = line.right(line.length() - eqPos - 1).trimmed();
valueStr = unescape(valueStr);
QVariant value(valueStr);
this->operator[](key) = value;
}
return true;
}
QVariant INIFile::get(QString key, QVariant def) const
{
if (!this->contains(key))
return def;
else
return this->operator[](key);
}
void INIFile::set(QString key, QVariant val)
{
this->operator[](key) = val;
}
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