https://github.com/python/cpython/commit/d3e79d75d164c338a64fd66edb26e69c501cee58 commit: d3e79d75d164c338a64fd66edb26e69c501cee58 branch: main author: Y5 <[email protected]> committer: vstinner <[email protected]> date: 2024-09-23T08:58:14+02:00 summary:
gh-124130: Notes on empty string corner case of category `\B` (#124133) Signed-off-by: y5c4l3 <[email protected]> Co-authored-by: Bénédikt Tran <[email protected]> files: M Doc/library/re.rst diff --git a/Doc/library/re.rst b/Doc/library/re.rst index efb2722f18038f..9db6f1da3be4db 100644 --- a/Doc/library/re.rst +++ b/Doc/library/re.rst @@ -572,6 +572,12 @@ character ``'$'``. Word boundaries are determined by the current locale if the :py:const:`~re.LOCALE` flag is used. + .. note:: + + Note that ``\B`` does not match an empty string, which differs from + RE implementations in other programming languages such as Perl. + This behavior is kept for compatibility reasons. + .. index:: single: \d; in regular expressions ``\d`` _______________________________________________ Python-checkins mailing list -- [email protected] To unsubscribe send an email to [email protected] https://mail.python.org/mailman3/lists/python-checkins.python.org/ Member address: [email protected]
