Hi, I have a question about the scope of two specific operators in XLE: shuffle and Kleene closure. Say I have an expression like the following: XP --> X* , Y. Depending on how the scope of the operators is interpreted, my guess is that there are different types of possible behavior: 1) XLE interprets the expression as [X,Y]*. XLE will accept strings of the following type: XY YX XYXY XYYX 2) XLE interprets the expression as [X]*,Y. XLE will accept strings of the following type: XY XXY YX YXXX (Only a single Y in each string.) The XLE documentation states that if two operators (* + # ~ - \ / , < >) occur next to each other, it disambiguates possible ambiguities by giving the left-hand operator wider scope than the right-hand operator (if I am not mistaken, this is behavior 1). My questions are these: - Is there scope ambiguity in my expression? - If there is scope ambiguity in my expression, how do you suggest it be resolved towards behavior 2 (which is the behavior I want)? I have implemented my expression in XLE, and the behavior is the desired one, but I'd like to understand why. Thanks, Jani -- Sebastian Sulger FB Sprachwissenschaft Universität Konstanz http://ling.uni-konstanz.de/pages/home/sulger