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top - downloadIndex: ┃ B T ┃
Length: 1157 (0x485)
Types: TextFile
Names: »B«
└─⟦a7d1ea751⟧ Bits:30000550 8mm tape, Rational 1000, !users!projects 94_04_11
└─ ⟦129cab021⟧ »DATA«
└─⟦this⟧
with Message;
package body More_Unary is
type Node_Structure is
record
Rule : Natural range 0 .. 1 := 0;
More : More_Unary.Node := More_Unary.Empty_Node;
Mess : Message.Unary;
end record;
procedure Parse (N : in out Node) is
use Scanner;
begin
N := new Node_Structure;
N.Rule := 0;
Message.Put (Scanner.Get_Value, N.Mess);
Scanner.Next;
if Scanner.Get_Token = Scanner.Identifier then
N.Rule := 1;
More_Unary.Parse (N.More);
end if;
end Parse;
function Is_First (T : Scanner.Token) return Boolean is
use Scanner;
begin
return T = Binary;
end Is_First;
function Interpret (N : Node;
Inherited : Object.Reference := Object.Void_Reference)
return Object.Reference is
Result : Object.Reference;
begin
Result := Message.Send (N.Mess, Inherited);
if N.Rule = 1 then
Result := More_Unary.Interpret (N.More, Result);
end if;
return Result;
end Interpret;
end More_Unary;