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Length: 13312 (0x3400)
Types: Ada Source
Notes: 03_class, FILE, R1k_Segment, e3_tag, package body Exprs, seg_047e9c
└─⟦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, Pieces, Objets,
Directions, Element_Global, Struct_Component, String_Table, Donnee,
Feuille, Text_Io, String_Utilities, Bounded_String, Actions, Int_Lib;
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_Integer));
Unit_Element_Global : Set_Of_Token.Object :=
Set_Of_Token.Make ((T_Objet, T_Pnj, T_Hero, 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;
Found : Boolean;
Indexverb : Natural := 0;
Astring : String_Table.I_String;
Tmptree2, Tmptree3 : Feuille.Pcell;
Tmpiterstruct : Struct_Component.Liste_Structure.Listiter;
begin
case Lex.Gettoken is
when T_Piece_Courante =>
Tmptree2 := Feuille.Create (Feuille.Piece_Courante);
Lex.Next;
if Lex.Currenttoken_Is (T_Equ) then
Lex.Next;
Tmptree := Feuille.Create (Feuille.Egal);
Tmptree.Left := Tmptree2;
if Lex.Currenttoken_Is (T_Ident) then
Bounded_String.Copy
(Astring, String_Utilities.Upper_Case (Lex.Image));
Struct_Component.Is_Inside
(Lex.Image, Pieces.Liste, Tmpiterstruct, Found);
if not Found then
Error.Append (" : nom de piece inconnu !");
Success := False;
else
Tmptree3 := Feuille.Create
(Feuille.Iter_S, Tmpiterstruct);
Tmptree.Right := Tmptree3;
Lex.Next;
end if;
else
Error.Append (" : un ident attendu !");
Success := False;
end if;
else
Error.Append (" : '=' attendu !");
Success := False;
end if;
when T_Ident =>
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);
Success := Success and Ok;
Tmptree3.Right := Element_Global.Tmptree;
elsif Set_Of_Token.Is_Member
(Lex.Gettoken, Unit_Donnee) then
Donnee.Parse (Ok);
Success := Success and Ok;
Tmptree3.Right := Donnee.Tmptree;
else
Success := False;
Error.Append
(" : vrai ou faux ou ident ou entier ou objet ou direction" &
" ou hero ou piece_courante attendu !");
end if;
else
Success := False;
Error.Append (" : = attendu !");
end if;
when T_Obracket =>
Lex.Next;
if Lex.Currenttoken_Is (T_Ident) then
Bounded_String.Copy
(Astring, String_Utilities.Upper_Case (Lex.Image));
Indexverb := Int_Lib.Find (Actions.Table, Astring);
if Indexverb /= 0 then
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));
Struct_Component.Is_Inside
(Bounded_String.Image (Astring),
Objets.Liste, Tmpiterstruct, Found);
if not Found then
Struct_Component.Is_Inside
(Bounded_String.Image (Astring),
Directions.Liste, Tmpiterstruct, Found);
if not Found then
Error.Append (" : ident inconnu !");
Success := False;
else
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
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;
end if;
else
Error.Append
(" : le verbe utilise n`a pas ete declare !");
Success := False;
end if;
else
Success := False;
Error.Append (" : ident attendu !");
end if;
if Lex.Currenttoken_Is (T_Cbracket) then
Lex.Next;
else
Success := False;
Error.Append (" : ) attendu !");
end if;
when others =>
Success := False;
Error.Append (" : ident ou ( attendu !");
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);
Success := Success and Ok;
Tmptree.Right := Tmptree2;
else
Tmptree := Tmptree3;
end if;
end Parse;
end Exprs;
nblk1=c
nid=0
hdr6=18
[0x00] rec0=1a rec1=00 rec2=01 rec3=038
[0x01] rec0=01 rec1=00 rec2=05 rec3=00c
[0x02] rec0=1a rec1=00 rec2=0a rec3=026
[0x03] rec0=00 rec1=00 rec2=06 rec3=006
[0x04] rec0=13 rec1=00 rec2=09 rec3=02a
[0x05] rec0=0d rec1=00 rec2=07 rec3=00a
[0x06] rec0=14 rec1=00 rec2=08 rec3=008
[0x07] rec0=14 rec1=00 rec2=03 rec3=02a
[0x08] rec0=10 rec1=00 rec2=0c rec3=088
[0x09] rec0=11 rec1=00 rec2=02 rec3=036
[0x0a] rec0=19 rec1=00 rec2=04 rec3=024
[0x0b] rec0=13 rec1=00 rec2=0b rec3=000
tail 0x2174bc38c86577d3cb7cd 0x42a00088462060003