On Wed, 2007-12-12 at 13:30 +0000, Magnus Therning wrote:
The visible change is the addition of a function, decode', that allows lazier decoding by shifting some responisility to the user.
That's interesting. It's in the same spirit as the lazy variant provided in the iconv lib. It'll be interesting to see if this is the best general interface for allowing people to lazily convert and handle conversion errors. The slight difference is that the iconv lib works over bytestring chunks rather than individual Word8 and provides a bit more detail about errors. It's otherwise pretty similar. convertLazily :: EncodingName -- ^ Name of input string encoding -> EncodingName -- ^ Name of output string encoding -> ByteString -- ^ Input text -> [Span] -- ^ Output text spans When nothing goes wrong we expect just a bunch of Spans. If there are conversion errors we get other span types. data Span = Span ByteString | ConversionError ConversionError data ConversionError = UnsuportedConversion EncodingName EncodingName | InvalidChar Offset | IncompleteChar Offset | UnexpectedError Errno http://hackage.haskell.org/packages/archive/iconv/0.4/doc/html/Codec-Text-IC... Duncan