Mirror
/
cpython
mirror of https://github.com/python/cpython
4
1
Fork 0
Code Issues Releases Wiki Activity

Issue #27800: Merge RE repetition doc from 3.6

This commit is contained in:
Martin Panter 2016-10-15 01:39:21 +00:00
parent 8a42581bc2 479eb760f4
commit 20e086efc7
1 changed files with 6 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
Doc/library/re.rst
View File

@ -79,6 +79,12 @@ how the regular expressions around them are interpreted. Regular
expression pattern strings may not contain null bytes, but can specify expression pattern strings may not contain null bytes, but can specify
the null byte using a ``\number`` notation such as ``'\x00'``. the null byte using a ``\number`` notation such as ``'\x00'``.
Repetition qualifiers (``*``, ``+``, ``?``, ``{m,n}``, etc) cannot be
directly nested. This avoids ambiguity with the non-greedy modifier suffix
``?``, and with other modifiers in other implementations. To apply a second
repetition to an inner repetition, parentheses may be used. For example,
the expression ``(?:a{6})*`` matches any multiple of six ``'a'`` characters.
The special characters are: The special characters are: