CLIOption.hh

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#ifndef CLIOPTION_HH
#define CLIOPTION_HH
 
#include <span>
#include <string_view>
 
namespace openmsx {
 
class CLIOption
{
public:
        CLIOption(const CLIOption&) = delete;
        CLIOption(CLIOption&&) = delete;
        CLIOption& operator=(const CLIOption&) = delete;
        CLIOption& operator=(CLIOption&&) = delete;
 
        virtual void parseOption(const std::string& option,
                                 std::span<std::string>& cmdLine) = 0;
        virtual void parseDone() {}
        [[nodiscard]] virtual std::string_view optionHelp() const = 0;
 
protected:
        CLIOption() = default;
        ~CLIOption() = default;
        [[nodiscard]] static std::string getArgument(
                const std::string& option, std::span<std::string>& cmdLine);
        [[nodiscard]] static std::string peekArgument(const std::span<std::string>& cmdLine);
};
 
class CLIFileType
{
public:
        CLIFileType(const CLIFileType&) = delete;
        CLIFileType(CLIFileType&&) = delete;
        CLIFileType& operator=(const CLIFileType&) = delete;
        CLIFileType& operator=(CLIFileType&&) = delete;
 
        virtual void parseFileType(const std::string& filename,
                                   std::span<std::string>& cmdLine) = 0;
        [[nodiscard]] virtual std::string_view fileTypeCategoryName() const = 0;
        [[nodiscard]] virtual std::string_view fileTypeHelp() const = 0;
 
protected:
        CLIFileType() = default;
        ~CLIFileType() = default;
};
 
} // namespace openmsx
 
#endif