164 lines
3.7 KiB
C++
164 lines
3.7 KiB
C++
/* Copyright 2013-2021 MultiMC Contributors
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "settings/INIFile.h"
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#include <FileSystem.h>
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#include <QFile>
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#include <QTextStream>
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#include <QStringList>
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#include <QSaveFile>
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#include <QDebug>
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INIFile::INIFile()
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{
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}
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QString INIFile::unescape(QString orig)
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{
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QString out;
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QChar prev = 0;
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for(auto c: orig)
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{
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if(prev == '\\')
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{
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if(c == 'n')
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out += '\n';
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else if(c == 't')
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out += '\t';
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else if(c == '#')
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out += '#';
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else
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out += c;
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prev = 0;
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}
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else
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{
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if(c == '\\')
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{
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prev = c;
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continue;
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}
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out += c;
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prev = 0;
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}
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}
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return out;
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}
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QString INIFile::escape(QString orig)
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{
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QString out;
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for(auto c: orig)
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{
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if(c == '\n')
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out += "\\n";
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else if (c == '\t')
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out += "\\t";
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else if(c == '\\')
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out += "\\\\";
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else if(c == '#')
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out += "\\#";
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else
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out += c;
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}
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return out;
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}
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bool INIFile::saveFile(QString fileName)
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{
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QByteArray outArray;
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for (Iterator iter = begin(); iter != end(); iter++)
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{
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QString value = iter.value().toString();
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value = escape(value);
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outArray.append(iter.key().toUtf8());
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outArray.append('=');
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outArray.append(value.toUtf8());
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outArray.append('\n');
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}
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try
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{
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FS::write(fileName, outArray);
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}
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catch (const Exception &e)
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{
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qCritical() << e.what();
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return false;
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}
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return true;
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}
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bool INIFile::loadFile(QString fileName)
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{
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QFile file(fileName);
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if (!file.open(QIODevice::ReadOnly))
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return false;
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bool success = loadFile(file.readAll());
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file.close();
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return success;
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}
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bool INIFile::loadFile(QByteArray file)
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{
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QTextStream in(file);
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in.setCodec("UTF-8");
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QStringList lines = in.readAll().split('\n');
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for (int i = 0; i < lines.count(); i++)
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{
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QString &lineRaw = lines[i];
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// Ignore comments.
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int commentIndex = 0;
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QString line = lineRaw;
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// Search for comments until no more escaped # are available
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while((commentIndex = line.indexOf('#', commentIndex + 1)) != -1) {
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if(commentIndex > 0 && line.at(commentIndex - 1) == '\\') {
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continue;
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}
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line = line.left(lineRaw.indexOf('#')).trimmed();
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}
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int eqPos = line.indexOf('=');
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if (eqPos == -1)
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continue;
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QString key = line.left(eqPos).trimmed();
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QString valueStr = line.right(line.length() - eqPos - 1).trimmed();
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valueStr = unescape(valueStr);
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QVariant value(valueStr);
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this->operator[](key) = value;
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}
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return true;
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}
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QVariant INIFile::get(QString key, QVariant def) const
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{
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if (!this->contains(key))
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return def;
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else
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return this->operator[](key);
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}
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void INIFile::set(QString key, QVariant val)
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{
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this->operator[](key) = val;
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}
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