85 lines
2.5 KiB
C++
85 lines
2.5 KiB
C++
#pragma once
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#include <luna/StringView.h>
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#include <luna/Vector.h>
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namespace os
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{
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class ArgumentParser
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{
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public:
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ArgumentParser();
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void add_description(StringView description);
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Result<void> add_positional_argument(StringView& out, StringView name, bool required);
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Result<void> add_positional_argument(StringView& out, StringView name, StringView fallback);
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Result<void> add_switch_argument(bool& out, char short_flag, StringView long_flag, StringView help = {});
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Result<void> add_value_argument(StringView& out, char short_flag, StringView long_flag, bool value_required,
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StringView help = {});
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Result<void> add_value_argument(StringView& out, char short_flag, StringView long_flag, StringView fallback,
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StringView help = {});
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Result<Vector<StringView>> parse(int argc, char* const* argv);
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struct ProgramInfo
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{
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StringView name;
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StringView version;
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StringView copyright;
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StringView license;
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StringView authors;
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StringView package;
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};
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void add_program_info(ProgramInfo info);
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/* Used from programs that are part of the Luna source tree, to add the same version info for all programs.
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* Should not be used otherwise. */
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void add_system_program_info(StringView name);
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private:
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struct PositionalArgument
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{
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StringView* out;
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StringView name;
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bool required;
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StringView fallback;
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};
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struct SwitchArgument
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{
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bool* out;
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char short_flag;
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StringView long_flag;
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StringView help;
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};
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struct ValueArgument
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{
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StringView* out;
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char short_flag;
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StringView long_flag;
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bool required;
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StringView fallback;
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StringView help;
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};
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Result<void> usage(StringView program_name);
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void short_usage(StringView program_name);
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void version();
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Vector<PositionalArgument> m_positional_args;
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Vector<SwitchArgument> m_switch_args;
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Vector<ValueArgument> m_value_args;
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ProgramInfo m_program_info;
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StringView m_description = {};
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bool m_add_short_help_flag { false };
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bool m_add_long_help_flag { false };
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bool m_add_short_version_flag { false };
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bool m_add_long_version_flag { false };
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};
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}
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