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/*
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* Copyright (C) 2021 CutefishOS.
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*
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* Author: revenmartin <revenmartin@gmail.com>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "calcengine.h"
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#include <QDebug>
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CalcEngine::CalcEngine(QObject *parent)
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: QObject(parent),
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m_evaluator(new Evaluator)
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{
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}
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QString CalcEngine::eval(const QString &expr)
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{
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QString text = expr;
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text = text.replace("＋", "+");
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text = text.replace("－", "-");
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text = text.replace("×", "*");
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text = text.replace("÷", "/");
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m_evaluator->setExpression(text);
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m_evaluator->eval();
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if (m_evaluator->error().isEmpty()) {
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return QString(HMath::formatFixed(m_evaluator->eval()));
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} else {
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qDebug() << m_evaluator->error();
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emit failed(QObject::tr("Error: %1").arg(m_evaluator->error()));
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}
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return "";
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}
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