I added recursive match operators, "\{" (start of repetition) and "\}" (end of repetition) at revision 3012.
/\{dir\}/ matches more than or equals to 1 repetition of dir (e.g. /dir/ /dir/dir/ /dir/dir/dir/ /dir/dir/dir/dir/ ).
The "\{" operator is permitted in the form of "/\{" sequence only. The "\}" operator is permitted in the form of "\}/" sequence only. No '/' is permitted between "\{" and "\}" operators.
