On 6/2/2017 7:56 PM, Ivan Levkivskyi wrote:
On 3 June 2017 at 01:29, Guido van Rossum
<gu...@python.org
<mailto:gu...@python.org>> wrote:
Are those characters not considered Unicode letters? Maybe we could
add their category to the allowed set?
Yes, they are not considered letters, they are in category Sm.
I presume that is Symbol - math.
Unfortunately, +, -, |, and other symbol that clearly should not be in
identifiers are also in this category,
so we cannot add the whole category. It is possible to include
particular ranges,
Having to test ranges will slow down identifier recognition.
but there should be a discussion
about what exactly can/should be included.
I believe the current python definition of 'identifier' is taken from
the Unicode Standard for default identifiers. Any change would have to
be propagated to regex engines, IDEs, and anything else that parses
python. I suggest that you ask Martin Loewis for his opinion on
changing the identifier definition.
--
Terry Jan Reedy
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