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    Length: 1997 (0x7cd)
    Types: TextFile
    Names: »B«

└─⟦a7d1ea751⟧ Bits:30000550 8mm tape, Rational 1000, !users!projects 94_04_11
    └─ ⟦129cab021⟧ »DATA« 
        └─⟦this⟧ 

TextFile

with Text_Io;
with Lex;
with Object;
with List;
with Error_Broadcaster;
package body Arguments is
    type Node_Structure is
        record
            Rule : Natural range 0 .. 1 := 0;
            Lst : List.Node := List.Empty_Node;
        end record;

    procedure Parse (N : in out Node; Error : out Boolean) is
        Failed : Boolean := False;

    begin
        N := new Node_Structure;
        case Lex.Get_Token is

            when Lex.Avec =>
                N.Rule := 1;
                Lex.Next_Token;
                List.Parse (N.Lst, Failed);
                if not Failed then
                    if Lex.Token'Pos (Lex.Get_Token) =
                       Lex.Token'Pos (Lex.Dot) then
                        Lex.Next_Token;
                    else
                        raise Error_Broadcaster.Dot_Is_Missing;
                    end if;
                end if;

            when others =>
                null;
        end case;
        Error := Failed;
    end Parse;

    procedure Unparse (N : in out Node) is
    begin
        case N.Rule is
            when 0 =>
                null;
            when 1 =>
                Text_Io.Put ("avec");
                List.Unparse (N.Lst);
                Text_Io.Put_Line (".");
        end case;
    end Unparse;

    function Is_First (T : Lex.Token) return Boolean is
        use Lex;
    begin
        return T = Lex.Dot;
    end Is_First;
    function Interpret (N : Node;
                        Inherited : Object.Reference := Object.Void_Reference)
                       return Object.Reference is
        Result : Object.Reference;
    begin
        case N.Rule is
            when 0 =>
                Result := Inherited;
            when 1 =>
                Result := List.Interpret (N.Lst);
        end case;
        return Result;
    end Interpret;
    procedure Set (N : Node; The_Argument : in out Object.Parameters.List) is

    begin
        List.Set (N.Lst, The_Argument);
    end Set;


end Arguments;