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Length: 16384 (0x4000)
Types: Ada Source
Notes: 03_class, FILE, R1k_Segment, e3_tag, package body Instructions, seg_0497d8
└─⟦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, Element, Exprs, Donnee, Set_Of_Token,
Pieces, Element_Global, Element, Liste_Instructions, Enum, Feuille,
Bounded_String, String_Table, String_Utilities, Text_Io, Struct_Component;
use Token_Pkg;
package body Instructions is
------------------------------------------------------------------------
-- <UNIT> Instructions
------------------------------------------------------------------------
--
-- <DESCRIPTION> This package defines an operation for parsing the
-- grammatical expresssion : <Instructions>
--
-- <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 <Instructions> and return if it was a
-- success or not.
--
-- <EXCEPTIONS> Nothing
--
------------------------------------------------------------------------
Ok : Boolean := True;
Found : Boolean;
Astring : String_Table.I_String;
Tmpident : String_Table.I_String;
Tmptree2, Tmptree3 : Feuille.Pcell;
Tmpiterstruct : Struct_Component.Liste_Structure.Listiter;
Tmpinstlist : Feuille.Liste_Instr.List;
begin
case Lex.Gettoken is
when T_Si =>
Lex.Next;
Tmptree2 := Feuille.Create (Feuille.Unk);
Exprs.Parse (Tmptree2, Ok);
Success := Success and Ok;
if Lex.Currenttoken_Is (T_Alors) then
Tmptree := Feuille.Create (Feuille.Alors);
Tmptree.Left := Tmptree2;
Tmptree3 := Feuille.Create (Feuille.Unk);
Lex.Next;
Liste_Instructions.Parse (Tmpinstlist, Ok);
Success := Success and Ok;
Tmptree3 := Feuille.Create
(Feuille.Instruction, Tmpinstlist);
Tmptree.Right := Tmptree3;
if Lex.Currenttoken_Is (T_Fin_Si) then
Lex.Next;
else
Success := False;
Error.Append (" : 'fin_si' attendu !");
end if;
else
Success := False;
Error.Append (" : 'alors' attendu !");
end if;
when T_Jeu_Termine =>
Tmptree := Feuille.Create (Feuille.Termine);
Lex.Next;
when T_Dire =>
Tmptree := Feuille.Create (Feuille.Dire);
Lex.Next;
case Lex.Gettoken is
when T_String =>
Bounded_String.Copy (Astring, Lex.Image);
Tmptree.Right := Feuille.Create
(Feuille.Chaine, Astring);
Lex.Next;
when T_Ident =>
Bounded_String.Copy
(Tmpident, String_Utilities.Upper_Case (Lex.Image));
--Lex.Next;
Element.Parse (Ok);
Success := Success and Ok;
Tmptree.Right := Element.Tmptree;
when others =>
Success := False;
Error.Append (" : une string ou un ident attendu !");
end case;
when T_Piece_Courante =>
Tmptree2 := Feuille.Create (Feuille.Piece_Courante);
Lex.Next;
if Lex.Currenttoken_Is (T_Vaut) then
Tmptree := Feuille.Create (Feuille.Vaut);
Tmptree.Left := Tmptree2;
Lex.Next;
if Lex.Currenttoken_Is (T_Ident) then
Bounded_String.Copy
(Astring, String_Utilities.Upper_Case (Lex.Image));
Struct_Component.Is_Inside
(String_Utilities.Upper_Case (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;
end if;
Lex.Next;
else
Success := False;
Error.Append (" : un ident attendu !");
end if;
else
Success := False;
Error.Append (" : 'vaut' attendu");
end if;
when T_Ident =>
Element.Parse (Ok);
Success := Success and Ok;
case Lex.Gettoken is
when T_Vaut =>
Tmptree := Feuille.Create (Feuille.Vaut);
Tmptree.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;
Tmptree.Right := Element_Global.Tmptree;
elsif Set_Of_Token.Is_Member
(Lex.Gettoken, Unit_Donnee) then
Donnee.Parse (Ok);
Success := Success and Ok;
Tmptree.Right := Donnee.Tmptree;
else
Success := False;
Error.Append
(" : 'vrai' ou 'faux' ou un ident ou un entier ou une chaine ou 'objet'" &
" ou 'hero' ou 'piece_courante' ou 'direction' attendu !");
end if;
when T_Add =>
Tmptree := Feuille.Create (Feuille.Vaut);
Tmptree.Left := Element.Tmptree;
Lex.Next;
if Lex.Currenttoken_Is (T_Integer) then
Tmptree2 := Feuille.Create (Feuille.Plus);
Tmptree2.Left := Element.Tmptree;
Tmptree3 := Feuille.Create
(Feuille.Entier,
Natural'Value (Lex.Image));
Tmptree2.Right := Tmptree3;
Tmptree.Right := Tmptree2;
Lex.Next;
else
Success := False;
Error.Append (" : un entier attendu !");
end if;
when T_Sub =>
Tmptree := Feuille.Create (Feuille.Vaut);
Tmptree.Left := Element.Tmptree;
Lex.Next;
if Lex.Currenttoken_Is (T_Integer) then
Tmptree2 := Feuille.Create (Feuille.Moins);
Tmptree2.Left := Element.Tmptree;
Tmptree3 := Feuille.Create
(Feuille.Entier,
Natural'Value (Lex.Image));
Tmptree2.Right := Tmptree3;
Tmptree.Right := Tmptree2;
Lex.Next;
else
Success := False;
Error.Append (" : un entier attendu !");
end if;
when T_Mul =>
Tmptree := Feuille.Create (Feuille.Vaut);
Tmptree.Left := Element.Tmptree;
Lex.Next;
if Lex.Currenttoken_Is (T_Integer) then
Tmptree2 := Feuille.Create (Feuille.Fois);
Tmptree2.Left := Element.Tmptree;
Tmptree3 := Feuille.Create
(Feuille.Entier,
Natural'Value (Lex.Image));
Tmptree2.Right := Tmptree3;
Tmptree.Right := Tmptree2;
Lex.Next;
else
Success := False;
Error.Append (" : un entier attendu !");
end if;
when T_Div =>
Tmptree := Feuille.Create (Feuille.Vaut);
Tmptree.Left := Element.Tmptree;
Lex.Next;
if Lex.Currenttoken_Is (T_Integer) then
Tmptree2 := Feuille.Create (Feuille.Div);
Tmptree2.Left := Element.Tmptree;
Tmptree3 := Feuille.Create
(Feuille.Entier,
Natural'Value (Lex.Image));
Tmptree2.Right := Tmptree3;
Tmptree.Right := Tmptree2;
Lex.Next;
else
Success := False;
Error.Append (" : un entier attendu !");
end if;
when others =>
Success := False;
Error.Append
(" : '+' ou '-' ou '*' ou '/' ou 'vaut' attendu !");
end case;
when others =>
Success := False;
Error.Append
(" : un ident ou 'le' ou 'piece_courante' ou 'si' ou 'dire'" &
" ou 'jeu_termine' attendu !");
end case;
end Parse;
end Instructions;
nblk1=f
nid=c
hdr6=1a
[0x00] rec0=1a rec1=00 rec2=01 rec3=006
[0x01] rec0=1b rec1=00 rec2=0d rec3=00a
[0x02] rec0=14 rec1=00 rec2=02 rec3=042
[0x03] rec0=17 rec1=00 rec2=0a rec3=058
[0x04] rec0=14 rec1=00 rec2=0e rec3=060
[0x05] rec0=01 rec1=00 rec2=0f rec3=044
[0x06] rec0=18 rec1=00 rec2=0b rec3=04e
[0x07] rec0=12 rec1=00 rec2=06 rec3=072
[0x08] rec0=14 rec1=00 rec2=09 rec3=010
[0x09] rec0=13 rec1=00 rec2=07 rec3=062
[0x0a] rec0=13 rec1=00 rec2=05 rec3=07a
[0x0b] rec0=16 rec1=00 rec2=04 rec3=09c
[0x0c] rec0=07 rec1=00 rec2=08 rec3=000
[0x0d] rec0=07 rec1=00 rec2=08 rec3=000
[0x0e] rec0=00 rec1=00 rec2=20 rec3=0fa
tail 0x2174de34e865e68bb8e5e 0x42a00088462060003
Free Block Chain:
0xc: 0000 00 03 00 04 80 01 65 01 02 03 04 05 06 07 08 09 ┆ e ┆
0x3: 0000 00 00 00 3a 80 08 20 61 6e 64 20 4f 6b 3b 08 00 ┆ : and Ok; ┆