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

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⟦5f63ae836⟧ Ada Source

    Length: 3072 (0xc00)
    Types: Ada Source
    Notes: 03_class, FILE, R1k_Segment, e3_tag, package body More_Binary, seg_032d1d

Derivation

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

with Scanner;
with Object;
with Unary;

package body More_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;
            Mess : Object.Binary := Object.Void_Binary;
        end record;

    procedure Parse (N : in out Node; Error : out Boolean) is
        Failed : Boolean := False;
        use Scanner;
    begin  
        N := new Node_Structure;
        N.Rule := 0;
        Object.Put (Scanner.Get_Value, N.Mess);
        Scanner.Next;
        Unary.Parse (N.Unar, Failed);
        if not Failed and then Scanner.Get_Token = Scanner.Binary then
            N.Rule := 1;
            More_Binary.Parse (N.More, Failed);
        end if;
        Error := Failed;
    end Parse;

    function Is_First (T : Scanner.Token) return Boolean is
        use Scanner;
    begin
        return T = Scanner.Binary;
    end Is_First;

    function Interpret (N : Node;
                        Inherited : Object.Reference := Object.Void_Reference)
                       return Object.Reference is
        Result : Object.Reference;
    begin
        Result := Unary.Interpret (N.Unar);
        Object.Put (Result, N.Mess);
        Result := Object.Send (N.Mess, Inherited);
        if N.Rule = 1 then
            Result := More_Binary.Interpret (N.More, Result);
        end if;
        return Result;
    end Interpret;
end More_Binary;

    nblk1=2
    nid=0
    hdr6=4
        [0x00] rec0=23 rec1=00 rec2=01 rec3=020
        [0x01] rec0=11 rec1=00 rec2=02 rec3=001
    tail 0x2172d9a8684c85ead9ada 0x42a00088462060003