Welcome to Scala version 2.10.0.r25815-b20111010230908 (Java HotSpot(TM) 64-Bit Server VM, Java 1.6.0_23).
Type in expressions to have them evaluated.
Type :help for more information.
scala> val x = 1
x: Int = 1
scala> "\{x}"
res0: String = 1
Requires the -Xexperimental flag. This test case reveals even more interesting things:
scala> val x = 1.1
x: Double = 1.1
scala> println("We have a \{ x ;2.2f}% chance of success")
We have a 1,10% chance of success
Mind you, there's a lot of things that have been hidden behind -Xexperimental, some of them for a long time now, and some of them ended up canned.
Edit: The proposal for this extension can be found here.
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