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Length: 9216 (0x2400)
Types: Ada Source
Notes: 03_class, FILE, R1k_Segment, e3_tag, package body Exprs, seg_04797f
└─⟦8527c1e9b⟧ Bits:30000544 8mm tape, Rational 1000, Arrival backup of disks in PAM's R1000
└─ ⟦cfc2e13cd⟧ »Space Info Vol 2«
└─⟦this⟧
with Lex, Error, Token_Pkg, Set_Of_Token, Element, Element_Global,
String_Table, Donnee, Feuille, Text_Io, String_Utilities, Bounded_String;
use Token_Pkg;
package body Exprs is
------------------------------------------------------------------------
-- <UNIT> Exprs
------------------------------------------------------------------------
--
-- <DESCRIPTION> This package defines an operation for parsing the
-- grammatical expresssion : <Exprs>
--
-- <AUTHOR> Barthe Raphael, Beck Didier, Kempe Laurent
-- <VERSION> 1.0
-- <DATE> 16-Jan-95
-- <MODIFY> 16-Jan-95
--
-- <PKG USED> LEX, Token_Pkg, Error,
--
------------------------------------------------------------------------
Unit_Donnee : Set_Of_Token.Object :=
Set_Of_Token.Make ((T_Vrai, T_Faux, T_Ident,
T_String, T_Peut, T_Integer));
Unit_Element_Global : Set_Of_Token.Object :=
Set_Of_Token.Make ((T_Objet, T_Pnj, T_Hero,
T_Direction, T_Piece_Courante));
procedure Parse (Tmptree : in out Feuille.Pcell;
Success : in out Boolean) is
------------------------------------------------------------------------
-- <SUBPROGRAM>
-- <UNIT> Parse
--
-- <DESCRIPTION> Try to parse <Exprs> and return if it was a
-- success or not.
--
-- <EXCEPTIONS> Nothing
--
------------------------------------------------------------------------
Ok : Boolean := True;
Astring : String_Table.I_String;
Tmptree2, Tmptree3 : Feuille.Pcell;
begin
case Lex.Gettoken is
when T_Ident | T_Le =>
Element.Parse (Ok);
Success := Success and Ok;
if Lex.Currenttoken_Is (T_Equ) then
Tmptree3 := Feuille.Create (Feuille.Egal);
Tmptree3.Left := Element.Tmptree;
Lex.Next;
if Set_Of_Token.Is_Member
(Lex.Gettoken, Unit_Element_Global) then
Element_Global.Parse (Ok);
Tmptree3.Right := Element_Global.Tmptree;
Success := Success and Ok;
elsif Set_Of_Token.Is_Member
(Lex.Gettoken, Unit_Donnee) then
Donnee.Parse (Ok);
Tmptree3.Right := Donnee.Tmptree;
Success := Success and Ok;
else
Success := False;
Error.Append;
end if;
else
Success := False;
Error.Append;
end if;
when T_Obracket =>
Lex.Next;
if Lex.Currenttoken_Is (T_Ident) then
Bounded_String.Copy
(Astring, String_Utilities.Upper_Case (Lex.Image));
Tmptree3 := Feuille.Create (Feuille.Verbe, Astring);
Lex.Next;
if Set_Of_Token.Is_Member
(Lex.Gettoken, Unit_Element_Global) then
Element_Global.Parse (Ok);
Success := Success and Ok;
Tmptree3.Left := Element_Global.Tmptree;
elsif Lex.Currenttoken_Is (T_Ident) then
Bounded_String.Copy
(Astring, String_Utilities.Upper_Case (Lex.Image));
Tmptree3.Left := Feuille.Create
(Feuille.Complement, Astring);
Lex.Next;
if Lex.Currenttoken_Is (T_Ident) then
Bounded_String.Copy
(Astring, String_Utilities.Upper_Case
(Lex.Image));
Tmptree3.Right := Feuille.Create
(Feuille.Complement, Astring);
Lex.Next;
end if;
end if;
else
Success := False;
Error.Append;
end if;
if Lex.Currenttoken_Is (T_Cbracket) then
Lex.Next;
else
Success := False;
Error.Append;
end if;
when others =>
Success := False;
Error.Append;
end case;
if Lex.Currenttoken_Is (T_Et) then
Lex.Next;
Tmptree := Feuille.Create (Feuille.Et);
Tmptree.Left := Tmptree3;
Tmptree2 := Feuille.Create (Feuille.Unk);
Exprs.Parse (Tmptree2, Ok);
Tmptree.Right := Tmptree2;
Success := Success and Ok;
else
Tmptree := Tmptree3;
end if;
end Parse;
end Exprs;
nblk1=8
nid=3
hdr6=c
[0x00] rec0=1b rec1=00 rec2=01 rec3=016
[0x01] rec0=1b rec1=00 rec2=07 rec3=00a
[0x02] rec0=17 rec1=00 rec2=08 rec3=04c
[0x03] rec0=11 rec1=00 rec2=05 rec3=07c
[0x04] rec0=1c rec1=00 rec2=02 rec3=018
[0x05] rec0=09 rec1=00 rec2=06 rec3=000
[0x06] rec0=02 rec1=00 rec2=03 rec3=000
[0x07] rec0=04 rec1=00 rec2=03 rec3=000
tail 0x2174b2ed88654777975e0 0x42a00088462060003
Free Block Chain:
0x3: 0000 00 04 00 10 00 0a 65 6e 64 20 45 78 70 72 73 3b ┆ end Exprs;┆
0x4: 0000 00 00 00 4f 80 20 43 72 65 61 74 65 20 28 46 65 ┆ O Create (Fe┆