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// SPDX-License-Identifier: GPL-3.0-only
// SPDX-FileCopyrightText: 2026 Project Tick
// SPDX-FileContributor: Project Tick Team
/*
 *  ProjT Launcher - Minecraft Launcher
 *  Copyright (C) 2026 Project Tick
 *
 *  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, version 3.
 *
 *  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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 */
/* === Upstream License Block (Do Not Modify) ==============================
 *
 *  Prism Launcher - Minecraft Launcher
 *  Copyright (C) 2022 Sefa Eyeoglu <contact@scrumplex.net>
 *
 *  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, version 3.
 *
 *  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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 *
 * This file incorporates work covered by the following copyright and
 * permission notice:
 *
 *      Copyright 2013-2021 MultiMC Contributors
 *
 *      Authors: Orochimarufan <orochimarufan.x3@gmail.com>
 *
 *      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 "Commandline.h"

/**
 * @file libutil/src/cmdutils.cpp
 */

namespace Commandline
{

	// commandline splitter
	QStringList splitArgs(QString args)
	{
		QStringList argv;
		QString current;
		bool escape = false;
		QChar inquotes;
		for (int i = 0; i < args.length(); i++)
		{
			QChar cchar = args.at(i);

			// \ escaped
			if (escape)
			{
				current += cchar;
				escape = false;
				// in "quotes"
			}
			else if (!inquotes.isNull())
			{
				if (cchar == '\\')
					escape = true;
				else if (cchar == inquotes)
					inquotes = QChar::Null;
				else
					current += cchar;
				// otherwise
			}
			else
			{
				if (cchar == ' ')
				{
					if (!current.isEmpty())
					{
						argv << current;
						current.clear();
					}
				}
				else if (cchar == '"' || cchar == '\'')
					inquotes = cchar;
				else
					current += cchar;
			}
		}
		if (!current.isEmpty())
			argv << current;
		return argv;
	}
} // namespace Commandline