#### Topic: Conditional insertion

I would like to insert some expression depending if another expression is empty or not. It could be useful to add such possibility

My case is the following:

**If** %Ev is not empty, **then **insert it rounded by dot-parenthesis *.(%Ev).*,**ElseIf **%EV is not empty **then **insert it rounded by dot-squared brackets *.[%EV].*,**Else **insert nothing *.*.

This could be something like:

%Ev?(x,y) => **if **%Ev is empty or zero, **then **insert x **else **insert y

or more sophisticated:

%Ev=a?(x,y) => with "=" is an comparison operator (= or ==, <=, <> ou !=,...)

or another syntax.

Great application!

Michel.