[Haskell-cafe] Is Haskell capable of matching C in string processing performance?

[Taru Karttunen]

Excerpts from John Millikin's message of Fri Jan 22 19:40:58 +0200 2010:
> Correct me if I'm wrong, but ByteStrings can't contain non-ASCII
> values, right? I'm looking for something like this pseudo-C:
> 
>     typedef void (*Callback)(const uint32_t *chars, size_t n_chars, void *);
>     WriterState *new_state (Callback, void *);
> 
> I tried using the Text type, but its conversions to Ptr Word16 are all
> O(n) -- not much better than String.

Are you using unicode on the C side with wchar_t?

You can have utf-8 inside ByteStrings.

- Taru Karttunen