Looks like it's using the .NET RegEx library. Here's the reference, in
case there are syntax differences in the RegEx language used:
http://msdn.microsoft.com/library/en-us/cpgenref/html/cpconRegularExpres
sionsLanguageElements.asp
Grouping Constructs:
http://msdn.microsoft.com/library/en-us/cpge
When trying to local a "simple" regular expression, I get the following:
$ IronPython-0.7.6/bin/IronPythonConsole.exe
IronPython 0.7.6 on .NET 2.0.50215.44
Copyright (c) Microsoft Corporation. All rights reserved.
>>> import re
>>> sect = re.compile('\[(?P[^]]+)\]')
System.ArgumentException: parsi
