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Encode_Base64
(Result (Cursor .. Cursor + 3),
Data (I));
I := I + 1;
end if;
Cursor := Cursor + 4;
end loop;
return Result;
end Encode_Base64;
---------------------------------
-- Base-64 with other charsets --
---------------------------------
function Decode_Base64 (Data : in Atom; Digit_62, Digit_63 : in Octet)
return Atom
is
Recoded : Atom := Data;
begin
for I in Recoded'Range loop
if Recoded (I) = Digit_62 then
Recoded (I) := Plus;
elsif Recoded (I) = Digit_63 then
Recoded (I) := Slash;
end if;
end loop;
return Decode_Base64 (Recoded);
end Decode_Base64;
function Encode_Base64 (Data : in Atom; Digit_62, Digit_63 : in Octet)
return Atom
is
Result : Atom := Encode_Base64 (Data);
Last : Count := Result'Last;
begin
for I in Result'Range loop
if Result (I) = Plus then
Result (I) := Digit_62;
elsif Result (I) = Slash then
Result (I) := Digit_63;
elsif Result (I) = Base64_Filler then
for J in I + 1 .. Result'Last loop
pragma Assert (Result (J) = Base64_Filler);
end loop;
Last := I - 1;
exit;
end if;
end loop;
return Result (Result'First .. Last);
end Encode_Base64;
function Encode_Base64
(Data : in Atom;
Digit_62, Digit_63, Padding : in Octet)
return Atom
is
Result : Atom := Encode_Base64 (Data);
begin
for I in Result'Range loop
if Result (I) = Plus then
Result (I) := Digit_62;
elsif Result (I) = Slash then
Result (I) := Digit_63;
elsif Result (I) = Base64_Filler then
Result (I) := Padding;
end if;
end loop;
return Result;
end Encode_Base64;
end Natools.S_Expressions.Encodings;
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