[Haskell-cafe] Re: PROPOSAL: New efficient Unicode string library.
wnoise at ofb.net
Thu Sep 27 04:36:40 EDT 2007
On 2007-09-27, Ross Paterson <ross at soi.city.ac.uk> wrote:
> On Thu, Sep 27, 2007 at 07:26:07AM +0000, Aaron Denney wrote:
>> On 2007-09-27, Ross Paterson <ross at soi.city.ac.uk> wrote:
>> > Combining characters are not an issue here, just the surrogate pairs,
>> > because we're discussing representations of sequences of Chars (Unicode
>> > code points).
>> You'll never want to combine combining characters or vice-versa? Never
>> want to figure out how much screen space a sequence will take? It _is_
>> an issue.
> It's an issue for a higher layer, not for a compact String representation.
Yes, and no. It's not something the lower layer should be doing, but
enabling the higher layers to do so efficiently is a concern.
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