ClangCliParam

pub const ClangCliParam = struct {
    name: []const u8,
    ze: ZigEquivalent = .other,
    syntax: Syntax = .flag,
    /// Prefixed by "-"
    pd1: bool = true,
    /// Prefixed by "--"
    pd2: bool = false,
    /// Prefixed by "/"
    psl: bool = false,

    pub const Syntax = union(enum) {
        /// A flag with no values.
        flag,
        /// An option which prefixes its (single) value.
        joined,
        /// An option which is followed by its value.
        separate,
        /// An option which is either joined to its (non-empty) value, or followed by its value.
        joined_or_separate,
        /// An option which is both joined to its (first) value, and followed by its (second) value.
        joined_and_separate,
        /// An option followed by its values, which are separated by commas.
        comma_joined,
        /// An option which consumes an optional joined argument and any other remaining arguments.
        remaining_args_joined,
        /// An option which is which takes multiple (separate) arguments.
        multi_arg: u8,
    };

    pub const ZigEquivalent = enum {
        target,
        o,
        c,
        r,
        m,
        x,
        other,
        positional,
        l,
        ignore,
        driver_punt,
        pic,
        no_pic,
        pie,
        no_pie,
        lto,
        no_lto,
        unwind_tables,
        no_unwind_tables,
        asynchronous_unwind_tables,
        no_asynchronous_unwind_tables,
        nostdlib,
        nostdlib_cpp,
        shared,
        rdynamic,
        wl,
        wp,
        preprocess_only,
        asm_only,
        optimize,
        debug,
        gdwarf32,
        gdwarf64,
        sanitize,
        no_sanitize,
        sanitize_trap,
        no_sanitize_trap,
        linker_script,
        dry_run,
        verbose,
        for_linker,
        linker_input_z,
        lib_dir,
        mcpu,
        dep_file,
        dep_file_to_stdout,
        framework_dir,
        framework,
        nostdlibinc,
        red_zone,
        no_red_zone,
        omit_frame_pointer,
        no_omit_frame_pointer,
        function_sections,
        no_function_sections,
        data_sections,
        no_data_sections,
        builtin,
        no_builtin,
        color_diagnostics,
        no_color_diagnostics,
        stack_check,
        no_stack_check,
        stack_protector,
        no_stack_protector,
        strip,
        exec_model,
        emit_llvm,
        sysroot,
        entry,
        force_undefined_symbol,
        weak_library,
        weak_framework,
        headerpad_max_install_names,
        compress_debug_sections,
        install_name,
        undefined,
        force_load_objc,
        mingw_unicode_entry_point,
        san_cov_trace_pc_guard,
        san_cov,
        no_san_cov,
        rtlib,
        static,
        dynamic,
        version,
    };

    pub fn matchEql(self: @This(), arg: []const u8) u2 {
        if (self.pd1 and arg.len >= self.name.len + 1 and
            mem.startsWith(u8, arg, "-") and mem.eql(u8, arg[1..], self.name))
        {
            return 1;
        }
        if (self.pd2 and arg.len >= self.name.len + 2 and
            mem.startsWith(u8, arg, "--") and mem.eql(u8, arg[2..], self.name))
        {
            return 2;
        }
        if (self.psl and arg.len >= self.name.len + 1 and
            mem.startsWith(u8, arg, "/") and mem.eql(u8, arg[1..], self.name))
        {
            return 1;
        }
        return 0;
    }

    pub fn matchStartsWith(self: @This(), arg: []const u8) usize {
        if (self.pd1 and arg.len >= self.name.len + 1 and
            mem.startsWith(u8, arg, "-") and mem.startsWith(u8, arg[1..], self.name))
        {
            return self.name.len + 1;
        }
        if (self.pd2 and arg.len >= self.name.len + 2 and
            mem.startsWith(u8, arg, "--") and mem.startsWith(u8, arg[2..], self.name))
        {
            return self.name.len + 2;
        }
        if (self.psl and arg.len >= self.name.len + 1 and
            mem.startsWith(u8, arg, "/") and mem.startsWith(u8, arg[1..], self.name))
        {
            return self.name.len + 1;
        }
        return 0;
    }
}