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// Copyright (C) 2023 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
#ifndef OPTIONSPARSER_H
#define OPTIONSPARSER_H
#include <QtCore/QString>
#include <QtCore/QStringList>
#include <memory>
QT_FORWARD_DECLARE_CLASS(QTextStream)
enum class OptionSource
{
CommandLine, // "--option"
CommandLineSingleDash, // "-o"
ProjectFile
};
struct BoolOption
{
QString option;
OptionSource source = OptionSource::CommandLine;
};
struct OptionValue // --option=value pair
{
QString option;
QString value;
OptionSource source = OptionSource::CommandLine;
};
using BoolOptions = QList<BoolOption>;
using OptionValues = QList<OptionValue>;
struct Options // Options from command line and project file
{
void setOptions(const QStringList &argv);
QString msgUnprocessedOptions() const;
BoolOptions boolOptions;
OptionValues valueOptions;
QStringList positionalArguments;
};
struct OptionDescription // For help formatting
{
QString name;
QString description;
};
using OptionDescriptions = QList<OptionDescription>;
QTextStream &operator<<(QTextStream &s, const BoolOption &bo);
QTextStream &operator<<(QTextStream &s, const OptionValue &ov);
QTextStream &operator<<(QTextStream &s, const OptionDescription &od);
QTextStream &operator<<(QTextStream &s, const OptionDescriptions &options);
class OptionsParser
{
public:
Q_DISABLE_COPY_MOVE(OptionsParser)
virtual ~OptionsParser();
// Return true to indicate the option was processed.
virtual bool handleBoolOption(const QString &key, OptionSource source);
virtual bool handleOption(const QString &key, const QString &value, OptionSource source);
void process(Options *);
static const QString &pathSyntax();
protected:
OptionsParser() noexcept;
};
class OptionsParserList : public OptionsParser
{
public:
using OptionsParserPtr = std::shared_ptr<OptionsParser>;
void append(const OptionsParserPtr &parser) { m_parsers.append(parser); }
void clear() { m_parsers.clear(); }
bool handleBoolOption(const QString &key, OptionSource source) override;
bool handleOption(const QString &key, const QString &value, OptionSource source) override;
private:
QList<OptionsParserPtr> m_parsers;
};
QDebug operator<<(QDebug debug, const BoolOption &bo);
QDebug operator<<(QDebug debug, const OptionValue &v);
QDebug operator<<(QDebug debug, const Options &v);
#endif // OPTIONSPARSER_H
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