imapsync/Mail-IMAPClient-2.2.9/Thread/Thread.grammar_old

# Atoms:

NUMBER: /\d+/

# Rules:

threadmember:	NUMBER    { $return = $item{NUMBER} ; }	|
		thread 	  { $return = $item{thread} ; } 

thread:	"(" threadmember(s) ")"
	{
		$return = $item{threadmember}||undef;	
	}

# Start:
start: /^\* THREAD /i thread(s?) {
	$return=$item{thread}||undef;
}