Option.h

#pragma once

#include <QCommandLineOption>
#include <QCommandLineParser>

namespace commandline
{

class Parser;

/* Note, this class and all it's derivatives store the validated results for caching. This means that unlike the
 * regular QCommandLineOption it is _not_ idempotent! */
class Option: public QCommandLineOption
{
public:
    Option(const QString &name,
          const QString &description = QString(),
          const QString &valueName = QString(),
          const QString &defaultValue = QString()
    );

    Option(const QStringList &names,
           const QString &description = QString(),
           const QString &valueName = QString(),
           const QString &defaultValue = QString()
    );

    Option(const QCommandLineOption &other);

    virtual bool validate(Parser &parser, QString &value);
    QString name();
    QString getError();
    QString value(Parser &parser);
    const char* getCString(Parser &parser);

protected:
    QString _error;
};

}