Version 1710 was commited by steve on 2010-10-05 13:11:15 +0100 (Tue, 05 Oct 2010) Better fix for the >= and <= operators. Tested with 'a=b & (smoothness ~ '.*(bad|horrible|impassable)' | sac_scale ~ '.*(mountain|alpine)_hiking') [0x1]' A quoted string should never be an operator. ie a = '>=' should be perfectly valid, this is now fixed too.