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    Length: 2176 (0x880)
    Types: TextFile
    Names: »B«

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TextFile

package body Verif_Input is
    subtype Digit is Character range '0' .. '9';
    subtype Lower is Character range 'a' .. 'f';
    subtype Upper is Character range 'A' .. 'F';

    function Is_Binary_Byte_Value (Value : String) return Boolean is
        Binary : Boolean := True;
    begin
        if Value'Last > 8 and Value'Last = 0 then
            return False;  
        else
            for I in Value'Range loop
                if Value (I) /= '1' and Value (I) /= '0' then
                    Binary := False;
                end if;
                exit when not Binary;
            end loop;  
            return Binary;
        end if;
    end Is_Binary_Byte_Value;


    function Is_Hexadecimal_Byte_Value (Value : String) return Boolean is
        Hexa_Val : Boolean := True;
    begin
        if Value'Last > 2 and Value'Last = 0 then
            return False;
        else  
            for I in Value'Range loop
                if (Value (I) not in Lower) and (Value (I) not in Upper) and
                   (Value (I) not in Digit) then
                    Hexa_Val := False;
                end if;
                exit when not Hexa_Val;
            end loop;  
            return Hexa_Val;
        end if;
    end Is_Hexadecimal_Byte_Value;


    function Is_Hexadecimal_Word_Value (Value : String) return Boolean is
        Hexa_Val : Boolean := True;
    begin  
        if Value'Last > 4 and Value'Last = 0 then
            return False;
        else  
            for I in Value'Range loop
                if (Value (I) not in Lower) and (Value (I) not in Upper) and
                   (Value (I) not in Digit) then
                    Hexa_Val := False;
                end if;
                exit when not Hexa_Val;
            end loop;  
            return Hexa_Val;
        end if;
    end Is_Hexadecimal_Word_Value;

    function Is_Digit (Value : String) return Boolean is
    begin
        if Value'Last /= 1 then
            return False;
        else  
            if Value (1) not in Digit then
                return False;
            else
                return True;
            end if;
        end if;
    end Is_Digit;
end Verif_Input;