From: Mark Summerfield Date: Sat, 31 May 2008 13:05:34 +0000 (+0000) Subject: Added a note to [] that special forms & special chars lose their meaning X-Git-Tag: v2.6b1~188 X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=700a6350917ee6a6e760cb357723912588d1af5c;p=python Added a note to [] that special forms & special chars lose their meaning and backrefs can't be used inside [] --- diff --git a/Doc/library/re.rst b/Doc/library/re.rst index 270e551282..05db89d060 100644 --- a/Doc/library/re.rst +++ b/Doc/library/re.rst @@ -181,6 +181,12 @@ The special characters are: ``[^5]`` will match any character except ``'5'``, and ``[^^]`` will match any character except ``'^'``. + Note that inside ``[]`` the special forms and special characters lose + their meanings and only the syntaxes described here are valid. For + example, ``+``, ``*``, ``(``, ``)``, and so on are treated as + literals inside ``[]``, and backreferences cannot be used inside + ``[]``. + ``'|'`` ``A|B``, where A and B can be arbitrary REs, creates a regular expression that will match either A or B. An arbitrary number of REs can be separated by the