DataMuseum.dk Presents historical artifacts from the history of: Rational R1000/400

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⟦f320e28a7⟧ Ada Source

    Length: 3072 (0xc00)
    Types: Ada Source
    Notes: 03_class, FILE, R1k_Segment, e3_tag, package body Binary, seg_035067, seg_0363b1, seg_036914

Derivation

└─⟦8527c1e9b⟧ Bits:30000544 8mm tape, Rational 1000, Arrival backup of disks in PAM's R1000
    └─ ⟦cfc2e13cd⟧ »Space Info Vol 2« 
        └─⟦this⟧ 

with Object, Scanner, Unary, More_Binary;
package body Binary is

    type Node_Structure is
        record
            Rule : Natural range 0 .. 1 := 0;
            Unar : Unary.Node := Unary.Empty_Node;
            More : More_Binary.Node := More_Binary.Empty_Node;
            Line : Natural;
        end record;

    procedure Parse (N : in out Node) is
        use Scanner;  
    begin
        N := new Node_Structure;
        N.Line := Scanner.Get_Line_Number;
        Unary.Parse (N.Unar);
        if More_Binary.Is_First (Scanner.Get_Token) then
            N.Rule := 1;
            More_Binary.Parse (N => N.More);
        end if;  
    end Parse;

    procedure Unparse (N : in Node) is
    begin
        Scanner.Set_Line_Number (N.Line);
        Unary.Unparse (N.Unar);
        if N.Rule = 1 then
            More_Binary.Unparse (N.More);
        end if;
    end Unparse;

    function Interpret (N : Node) return Object.Reference is
        Result : Object.Reference;
    begin  
        Scanner.Set_Line_Number (N.Line);
        case N.Rule is
            when 0 =>
                Result := Unary.Interpret (N.Unar);
            when 1 =>
                Result := Unary.Interpret (N.Unar);  
                Result := More_Binary.Interpret (N.More, Result);
        end case;
        return Result;
    end Interpret;
end Binary;

    nblk1=2
    nid=0
    hdr6=4
        [0x00] rec0=23 rec1=00 rec2=01 rec3=006
        [0x01] rec0=0d rec1=00 rec2=02 rec3=001
    tail 0x21731920084d84e36967b 0x42a00088462060003