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⟦1e33ffd68⟧ Ada Source

    Length: 9216 (0x2400)
    Types: Ada Source
    Notes: 03_class, FILE, R1k_Segment, e3_tag, package body Instructions, seg_044753

Derivation

└─⟦8527c1e9b⟧ Bits:30000544 8mm tape, Rational 1000, Arrival backup of disks in PAM's R1000
    └─ ⟦cfc2e13cd⟧ »Space Info Vol 2« 
        └─⟦this⟧ 

E3 Source Code



with Lex, Error, Token_Pkg, Element, Exprs, Donnee,
     Set_Of_Token, Element_Global, Liste_Instructions;
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_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, T_Le));

    procedure Parse (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;
    begin
        if Set_Of_Token.Is_Member (Lex.Gettoken, Unit_Element_Global) then
            Element_Global.Parse (Ok);
            Success := Success and Ok;
            if Lex.Currenttoken_Is (T_Vaut) then
                Lex.Next;
                Element_Global.Parse (Ok);
                Success := Success and Ok;
            else
                Success := False;
                Error.Append;  
            end if;  
        else
            case Lex.Gettoken is

                when T_Si =>
                    Lex.Next;
                    Exprs.Parse (Ok);
                    Success := Success and Ok;
                    if Lex.Currenttoken_Is (T_Alors) then
                        Lex.Next;
                        Liste_Instructions.Parse (Ok);
                        Success := Success and Ok;
                        if Lex.Currenttoken_Is (T_Fin_Si) then
                            Lex.Next;
                        else
                            Success := False;
                            Error.Append;
                        end if;
                    else
                        Success := False;
                        Error.Append;
                    end if;

                when T_Jeu_Termine =>
                    Lex.Next;

                when T_Dire =>
                    Lex.Next;
                    case Lex.Gettoken is
                        when T_String =>
                            Lex.Next;
                        when T_Ident =>
                            Lex.Next;
                            Element.Parse (Ok);
                            Success := Success and Ok;
                        when others =>
                            Success := False;
                            Error.Append;
                    end case;

                when T_Ident =>
                    Lex.Next;
                    Element.Parse (Ok);
                    Success := Success and Ok;
                    case Lex.Gettoken is
                        when T_Vaut =>
                            Lex.Next;
                            if Set_Of_Token.Is_Member
                                  (Lex.Gettoken, Unit_Element_Global) then
                                Element_Global.Parse (Ok);
                                Success := Success and Ok;
                            elsif Set_Of_Token.Is_Member
                                     (Lex.Gettoken, Unit_Donnee) then
                                Donnee.Parse (Ok);
                                Success := Success and Ok;
                            else
                                Success := False;
                                Error.Append;
                            end if;
                        when T_Add =>
                            Lex.Next;
                            if Lex.Currenttoken_Is (T_Integer) then
                                Lex.Next;
                            else
                                Success := False;
                                Error.Append;
                            end if;
                        when T_Sub =>
                            Lex.Next;
                            if Lex.Currenttoken_Is (T_Integer) then
                                Lex.Next;
                            else
                                Success := False;
                                Error.Append;
                            end if;
                        when T_Mul =>
                            Lex.Next;
                            if Lex.Currenttoken_Is (T_Integer) then
                                Lex.Next;
                            else
                                Success := False;
                                Error.Append;
                            end if;
                        when T_Div =>
                            Lex.Next;
                            if Lex.Currenttoken_Is (T_Integer) then
                                Lex.Next;
                            else
                                Success := False;
                                Error.Append;
                            end if;
                        when others =>
                            Success := False;
                            Error.Append;
                    end case;

                when others =>
                    Success := False;
                    Error.Append;
            end case;
        end if;
    end Parse;

end Instructions;

E3 Meta Data

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    nid=0
    hdr6=10
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        [0x01] rec0=00 rec1=00 rec2=05 rec3=028
        [0x02] rec0=1e rec1=00 rec2=06 rec3=018
        [0x03] rec0=1a rec1=00 rec2=08 rec3=04a
        [0x04] rec0=16 rec1=00 rec2=03 rec3=082
        [0x05] rec0=16 rec1=00 rec2=02 rec3=036
        [0x06] rec0=18 rec1=00 rec2=07 rec3=03e
        [0x07] rec0=07 rec1=00 rec2=04 rec3=000
    tail 0x217458dae863e89833acd 0x42a00088462060003