[TuringTest]

For that use case you can use the Lapis[1][2] desktop app (the secret weapon I use for data munging), which allows you to choose several examples and edit a file with direct manipulation - or define patterns using a DSL.

[1]https://en.wikipedia.org/wiki/Lapis_(text_editor)

[2]http://groups.csail.mit.edu/uid/lapis/

[nutate]

I love how that editor "just works" 12 years after its last release. Thanks!

[frik]

It looks like Java 1.1 UI from 1996.

But thanks for the suggestion, it might be useful.