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author | Raymond Hettinger <python@rcn.com> | 2004-09-26 18:56:44 +0000 |
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committer | Raymond Hettinger <python@rcn.com> | 2004-09-26 18:56:44 +0000 |
commit | 1d68dddda4969631b04b6e8442baf91abb478550 (patch) | |
tree | 2b3f9943017c028ce930d11c2425de316d41664c /Lib/string.py | |
parent | 1371ef045a89f2299ec80822bce55cf0b15dd9d2 (diff) | |
download | cpython-1d68dddda4969631b04b6e8442baf91abb478550.tar.gz |
Make the regex pattern easier to read, understand, and modify
by factoring out the common prefix (the delimiter).
Diffstat (limited to 'Lib/string.py')
-rw-r--r-- | Lib/string.py | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/Lib/string.py b/Lib/string.py index 623eb0edab..7371c915a1 100644 --- a/Lib/string.py +++ b/Lib/string.py @@ -101,10 +101,12 @@ class _multimap: class _TemplateMetaclass(type): pattern = r""" - (?P<escaped>%(delim)s{2}) | # Escape sequence of two delimiters - %(delim)s(?P<named>%(id)s) | # delimiter and a Python identifier - %(delim)s{(?P<braced>%(id)s)} | # delimiter and a braced identifier - (?P<invalid>%(delim)s) # Other ill-formed delimiter exprs + %(delim)s(?: + (?P<escaped>%(delim)s) | # Escape sequence of two delimiters + (?P<named>%(id)s) | # delimiter and a Python identifier + {(?P<braced>%(id)s)} | # delimiter and a braced identifier + (?P<invalid>) # Other ill-formed delimiter exprs + ) """ def __init__(cls, name, bases, dct): |