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DataMuseum.dkPresents historical artifacts from the history of: Rational R1000/400 Tapes |
This is an automatic "excavation" of a thematic subset of
See our Wiki for more about Rational R1000/400 Tapes Excavated with: AutoArchaeologist - Free & Open Source Software. |
top - metrics - downloadIndex: B T
Length: 1592 (0x638)
Types: TextFile
Names: »B«
└─⟦a7d1ea751⟧ Bits:30000550 8mm tape, Rational 1000, !users!projects 94_04_11
└─⟦129cab021⟧ »DATA«
└─⟦this⟧
with Text_Io;
with Lex;
with Object;
with Error_Broadcaster;
with Statements;
with Unparser;
package body More_Statements is
type Node_Structure is
record
Rule : Natural range 0 .. 1 := 0;
State : Statements.Node := Statements.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.Dot =>
N.Rule := 1;
Lex.Next_Token;
Statements.Parse (N.State, Failed);
when Lex.L_End | Lex.Close_Bracket =>
null;
when others =>
raise Error_Broadcaster.Dot_Is_Missing;
end case;
Error := Failed;
end Parse;
procedure Unparse (N : in out Node) is
begin
case N.Rule is
when 0 =>
null;
when 1 =>
Unparser.Put (".");
Unparser.Put_Line ("");
Statements.Unparse (N.State);
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 := Inherited;
when 1 =>
Result := Statements.Interpret (N.State, Inherited);
end case;
return Result;
end Interpret;
end More_Statements;