AramJonghu
85944ec966
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57 lines
1.2 KiB
C++
57 lines
1.2 KiB
C++
#include "qalculator.hpp"
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#include <libqalculate/qalculate.h>
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namespace ZShell {
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Qalculator::Qalculator(QObject* parent) : QObject(parent) {
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int x;
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if (!CALCULATOR) {
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new Calculator();
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CALCULATOR->loadExchangeRates();
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CALCULATOR->loadGlobalDefinitions();
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CALCULATOR->loadLocalDefinitions();
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}
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}
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QString Qalculator::eval(const QString& expr, bool printExpr) const {
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if (expr.isEmpty()) {
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return QString();
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}
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EvaluationOptions eo;
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PrintOptions po;
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std::string parsed;
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std::string result = CALCULATOR->calculateAndPrint(
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CALCULATOR->unlocalizeExpression(expr.toStdString(), eo.parse_options),
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100,
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eo,
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po,
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&parsed);
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std::string error;
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while (CALCULATOR->message()) {
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if (!CALCULATOR->message()->message().empty()) {
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if (CALCULATOR->message()->type() == MESSAGE_ERROR) {
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error += "error: ";
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} else if (CALCULATOR->message()->type() == MESSAGE_WARNING) {
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error += "warning: ";
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}
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error += CALCULATOR->message()->message();
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}
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CALCULATOR->nextMessage();
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}
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if (!error.empty()) {
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return QString::fromStdString(error);
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}
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if (printExpr) {
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return QString("%1 = %2").arg(parsed).arg(result);
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}
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return QString::fromStdString(result);
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}
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} // namespace ZShell
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