[Haskell-i18n] SourceForge Project Active

Ketil Z. Malde ketil@ii.uib.no
05 Sep 2002 10:06:33 +0200


Glynn Clements <glynn.clements@virgin.net> writes:

>> decodeOne :: [Word8] -> (Either Error Char, Int, [Word8])
>>    -- 2nd. component: number of bytes consumed,
>>    -- 3rd. component: rest of bytes

Huh?  Either..or?  I can't make sense of the declaration, what's with
the commas?

>> Comments welcome.

I vote for 'decodeChar' for single characters, and just 'decode' for 
String.  FWIW.

> 3. The basic decoder interface shouldn't attempt to recover from
> errors. Rather, it should return the list of complete characters, the
> list of remaining octets, and the final state. Any error recovery
> should be an optional add-on.

Could error handling be passed as a parameter to the encoder, perhaps?
E.g. if I'm not really interested in debugging the code, just
extracting what's possible, I could pass an error handler that tries
to skip errors and keep going, without having to pollute my higher
level code with it?

-kzm
-- 
If I haven't seen further, it is by standing in the footprints of giants