Allow using Perl-like \l, \L, \u, \U and \E escape sequences in the
substitution string used with %rename("%(regex:/pattern/subst/)s").
This is useful for e.g. title casing all string after removing some prefix.
Closes#82
Skip over %renames with non-matching %(regex)s expansion when looking for the
one to apply to the given name. This allows to have multiple anonymous renames
using regex as now the first _matching_ one will be used instead of always
using the first one and ignoring all the rest of them.
Extend unit tests to verify that applying two anonymous %renames does work as
expected.
git-svn-id: https://swig.svn.sourceforge.net/svnroot/swig/trunk@12293 626c5289-ae23-0410-ae9c-e8d60b6d4f22