On 5/31/2014 4:09 AM, Philippe Verdy wrote:
2014-05-30 20:49 GMT+02:00 Asmus Freytag <[email protected]
<mailto:[email protected]>>:
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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