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

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⟦1ea3fcf97⟧ Ada Source

    Length: 5120 (0x1400)
    Types: Ada Source
    Notes: 03_class, FILE, R1k_Segment, e3_tag, package body More_Binary, seg_038ec6, seg_038f5d

Derivation

└─⟦8527c1e9b⟧ Bits:30000544 8mm tape, Rational 1000, Arrival backup of disks in PAM's R1000
    └─ ⟦5a81ac88f⟧ »Space Info Vol 1« 
        └─⟦this⟧ 

with Text_Io;
with Lex;
with Object;
with Bounded_String;
with Unary;  
with Unparser;
package body More_Binary is
    type Node_Structure is
        record
            Rule : Natural range 0 .. 1 := 0;
            More : More_Binary.Node := More_Binary.Empty_Node;
            Una : Unary.Node := Unary.Empty_Node;
            Mess : Object.Message;
        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.Binary_Message =>

                Bounded_String.Copy (N.Mess, Lex.Get_Value);
                Lex.Next_Token;
                Unary.Parse (N.Una, Failed);
                if not Failed and Lex.Token'Pos (Lex.Get_Token) =
                                     Lex.Token'Pos (Lex.Binary_Message) then
                    N.Rule := 1;
                    More_Binary.Parse (N.More, Failed);
                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 =>
                Unparser.Put (" ");
                Unparser.Put (Bounded_String.Image (N.Mess));
                Unary.Unparse (N.Una);
            when 1 =>
                Unparser.Put (" ");
                Unparser.Put (Bounded_String.Image (N.Mess));
                Unary.Unparse (N.Una);
                More_Binary.Unparse (N.More);
        end case;
    end Unparse;

    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 := Object.Send (Inherited, N.Mess,
                                       Unary.Interpret (N.Una, Result));
            when 1 =>
                Result := Object.Send (Inherited, N.Mess,
                                       Unary.Interpret (N.Una, Result));
                Result := More_Binary.Interpret (N.More, Result);
        end case;
        return Result;
    end Interpret;
end More_Binary;

    nblk1=4
    nid=3
    hdr6=6
        [0x00] rec0=20 rec1=00 rec2=01 rec3=06e
        [0x01] rec0=1f rec1=00 rec2=04 rec3=04c
        [0x02] rec0=0a rec1=00 rec2=02 rec3=000
        [0x03] rec0=02 rec1=a1 rec2=f4 rec3=442
    tail 0x21531ec0c84e86ed259e2 0x42a00088462060003
Free Block Chain:
  0x3: 0000  00 00 02 53 80 29 20 20 20 20 20 20 20 20 20 20  ┆   S )          ┆