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DataMuseum.dkPresents historical artifacts from the history of: Rational R1000/400 |
This is an automatic "excavation" of a thematic subset of
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Length: 5120 (0x1400)
Types: Ada Source
Notes: 03_class, FILE, R1k_Segment, e3_tag, package body Bloc, seg_037e77
└─⟦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 Error_Broadcaster;
with Statements;
with Arguments;
with Bloc_Class;
with String_Utilities;
with Bounded_String;
package body Bloc is
type Node_Structure is
record
Rule : Natural range 0 .. 1 := 0;
Arg : Arguments.Node := Arguments.Empty_Node;
State : Statements.Node := Statements.Empty_Node;
end record;
procedure Open (N : in out Node) is
begin
Bloc_Class.Set (N);
end Open;
procedure Parse (N : in out Node; Error : out Boolean) is
Failed : Boolean := False;
begin
N := new Node_Structure;
if Lex.Token'Pos (Lex.Get_Token) = Lex.Token'Pos (Lex.Open_Bracket) then
Open (N);
N.Rule := 1;
Lex.Next_Token;
Arguments.Parse (N.Arg, Failed);
if not Failed then
Statements.Parse (N.State, Failed);
if not Failed then
if Lex.Token'Pos (Lex.Get_Token) =
Lex.Token'Pos (Lex.Close_Bracket) then
Bloc_Class.Close;
Lex.Next_Token;
else
raise Error_Broadcaster.Brackect_Is_Missing;
end if;
end if;
end if;
end if;
Error := Failed;
end Parse;
procedure Unparse (N : in out Node) is
begin
case N.Rule is
when 0 =>
null;
when 1 =>
Text_Io.Put ("{");
Arguments.Unparse (N.Arg);
Statements.Unparse (N.State);
Text_Io.Put_Line ("}");
end case;
end Unparse;
function Is_First (T : Lex.Token) return Boolean is
begin
return (Lex.Token'Pos (T) = Lex.Token'Pos (Lex.Open_Bracket));
end Is_First;
procedure Interpret (N : Node;
The_Argument : in out Object.Parameters.List;
Result : in out Object.Reference) is
begin
case N.Rule is
when 0 =>
Result := Statements.Interpret (N.State, Result);
when 1 =>
Arguments.Set (N.Arg, The_Argument);
Result := Statements.Interpret (N.State, Result);
end case;
end Interpret;
function Interpret (N : Node; The_Argument : Object.Message)
return Object.Reference is
begin
if String_Utilities.Equal
("valeur", Bounded_String.Image (The_Argument), True) then
return (Statements.Interpret (N.State));
else
raise Error_Broadcaster.Unknown_Unary_Message;
end if;
end Interpret;
end Bloc;
nblk1=4
nid=4
hdr6=6
[0x00] rec0=24 rec1=00 rec2=01 rec3=022
[0x01] rec0=21 rec1=00 rec2=03 rec3=018
[0x02] rec0=1d rec1=00 rec2=02 rec3=000
[0x03] rec0=07 rec1=00 rec2=04 rec3=000
tail 0x21530e08484e54a0bc751 0x42a00088462060003
Free Block Chain:
0x4: 0000 00 00 00 76 00 0c 20 20 20 20 20 20 20 20 65 6c ┆ v el┆