UTF8 performance

[Nick Wellnhofer]

On 06/01/10 23:12, Nick Wellnhofer wrote:
> Here is a preliminary patch.

Here is bigger patch that makes the following changes:

- Move the function pointers from string_iterator_t to encoding_t
- Remove now unneeded iter_init from encoding_t
- Introduce new STRING_ITER_ macros
- Add iter_regress_and_decode function to encoding_t
- Change the string iterator PMC to actually use the string iterator API
- Change Parrot_str_split to use iterators
- Optimize utf8_set_position to also search backward

Nick
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