On 5/31/2014 4:09 AM, Philippe Verdy wrote:
> 2014-05-30 20:49 GMT+02:00 Asmus Freytag <asmusf_at_ix.netcom.com
> <mailto:asmusf_at_ix.netcom.com>>:
>
> This might have been possible at the time these were added, but
> now it is probably not feasible. One of the reasons is that block
> names are exposed (for better or for worse) as character
> properties and as such are also exposed in regular expressions.
> While not recommended, it would be really bad if the expression
> with pseudo-code "IsInArabicPresentationFormB(x)" were to fail,
> because we split the block into three (with the middle one being
> the noncharacters).
>
>
> If you think about pseudocode testing for properties then nothing
> forbifs the test IsInArabicPresentationFormB(x) to check two ranges
> onstead of just one.
Besides the point.
The issue is that the result of evaluation of an expression would change
over time.
A./
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Received on Sat May 31 2014 - 11:18:49 CDT
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