clparser.h

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#ifndef CLPARSER_H
#define CLPARSER_H

#include <QStringList>
#include <QString>
#include <QObject>
#include <QDebug>
#include <QMap>

namespace LangmuirCore {

class CommandLineParser : public QObject
{
    Q_OBJECT
public:
    explicit CommandLineParser(QObject *parent = 0);

    void setDescription(const QString& desc);

    void addBool(QString flag, QString dest, QString help);

    void addPositional(QString dest, QString help);

    void add(QString flag, QString dest, QString help);

    template <typename T> T get(const QString& dest, T default_value);

    void parse(QStringList &args);

    QString help();

protected:
    QMap<QString,bool> m_isBool;

    QMap<QString,int> m_isPositional;

    QMap<QString,QString> m_flags;

    QMap<QString,QString> m_helps;

    QMap<QString,QString> m_values;

    QString m_description;

    QStringList m_args;

    unsigned int m_numPositional;

    unsigned int m_numArguments;

    template <typename T> T convert(const QString& value);
};

template <typename T> T CommandLineParser::get(const QString &dest, T default_value)
{
    if (!m_values.contains(dest)) {
        qDebug() << "langmuir: invalid parser key..." << qPrintable(dest);
        exit(-1);
    }
    if (m_values[dest].isEmpty()) {
        return default_value;
    }
    return convert<T>(m_values[dest]);
}

}
#endif // CLPARSER_H