Matthew Barnett <[email protected]> added the comment:
I use Python 3, where len("\U00010337") == 2 on a narrow build.
Yes, wide Unicode on a narrow build is a problem:
>>> regex.findall("\\U00010337", "a\U00010337bc")
[]
>>> regex.findall("(?i)\\U00010337", "a\U00010337bc")
[]
I'm not sure how (or whether!) to handle surrogate pairs. It _would_ make
things more complicated.
I suppose the moral is that if you want to use wide Unicode then you really
should use a wide build.
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<http://bugs.python.org/issue2636>
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