The problem is that the first match "1 squared" will give�� a DNU on the right pane, as the argument var '@args is empty.1 raisedTo:2and1 squared.can match message sends with or without arguments, so it matches both`@msg:`@argsHey Uko,this pattern for a message sent:
2016-08-04 10:23 GMT+02:00 Yuriy Tymchuk <yuriy.tymchuk@me.com>:Hi everyone!I���m happy to announce a new tool that can help you to understand to the pattern code is working in match & rewrite rules.You can read more on my blogpost:��http://blog.yuriy.tymch.uk/2016/08/matchtool.html The tool is available for Pharo 6 from the catalog.Cheers!Uko