Where there is a faq about regex into cmake ?

[Brad King]

Laurent Montel wrote:
> regexp into cmake is not standard.
> Where can I read doc about it ?

See comments in front of the regex class definition:

http://www.cmake.org/cgi-bin/viewcvs.cgi/Source/kwsys/RegularExpression.hxx.in?root=CMake&view=markup

Note that whenever you need a backslash in a regex you need to write two 
because the first is removed by the CMake lanugage before constructing 
an instance of this class.

-Brad