The last use of _, as in empty_?, is not a special scala meaning. As on Java, underscores can be part of an identifier. Scala takes advantage of this to combine letters and symbols in one name. These names, like empty_?, are a Lift convention, as well as ..._! for use-with-care methods. The scala library uses isEmpty. David, is it your original convention?.
------------------------------------- tiro<tim.romb...@googlemail.com> wrote: > override def validations = validPriority _ :: super.validations funny, I had stumbled on exactly the same line of code when beginning. Took me more than a day to understand what's going on. Especially because when you copied code from the PDF version of the Liftbook/Lift getting started guide, it would mess up spaces, so I would keep loooking for a "_::" operator. The Scala guys have really pushed it a bit hard on the use of the underscore. At least four different uses: - "it" for defining anonymous functions like above - default value - matching placeholder whose value is ignored - use for constructing setter method names boolean functions (empty_?) --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Lift" group. To post to this group, send email to liftweb@googlegroups.com To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/liftweb?hl=en -~----------~----~----~----~------~----~------~--~---
