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** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
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**
** This file is part of Qt Creator.
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****************************************************************************/

#ifndef UTILS_MACROEXPANDER_H
#define UTILS_MACROEXPANDER_H

#include "stringutils.h"

#include <functional>

namespace Utils {

namespace Internal { class MacroExpanderPrivate; }

class QTCREATOR_UTILS_EXPORT MacroExpander : public AbstractMacroExpander
{
public:
    explicit MacroExpander();
    ~MacroExpander();

    bool resolveMacro(const QString &name, QString *ret);

    QString value(const QByteArray &variable, bool *found = 0);

    QString expand(const QString &stringWithVariables);
    QByteArray expand(const QByteArray &stringWithVariables);

    typedef std::function<QString(QString)> PrefixFunction;
    typedef std::function<QString()> StringFunction;
    typedef std::function<int()> IntFunction;

    void registerPrefix(const QByteArray &prefix,
        const QString &description, const PrefixFunction &value);

    void registerVariable(const QByteArray &variable,
        const QString &description, const StringFunction &value);

    void registerIntVariable(const QByteArray &variable,
        const QString &description, const IntFunction &value);

    void registerFileVariables(const QByteArray &prefix,
        const QString &heading, const StringFunction &value);

    QList<QByteArray> variables();
    QString variableDescription(const QByteArray &variable);

    QString displayName() const;
    void setDisplayName(const QString &displayName);

private:
    MacroExpander(const MacroExpander &) Q_DECL_EQ_DELETE;
    void operator=(const MacroExpander &) Q_DECL_EQ_DELETE;

    Internal::MacroExpanderPrivate *d;
};

QTCREATOR_UTILS_EXPORT MacroExpander *globalMacroExpander();

} // namespace Utils

#endif // UTILS_MACROEXPANDER_H