I frequently work on three operating systems (Windows 7, OSX, and Linux) and I keep one .pentadactylrc under version control. Up until recently my settings have been portable enough to work on all three systems (key bindings, marks, hint keys), but it appears that the editor command needs to be different for each OS. I would rather not have to maintain three init files.
Is there a way to set the value of editor conditional on the current OS in .pentadactylrc?