in reply to Regular Expressions: Call for Examples
I like to use regexen in fields that don't naturally fall
in their kingdom.
Example: I used regexen to solve arbitrary
pentominoes problems
and won in the creative category at OPC3. Sources are at
http://paris.pm.org/assombri/opc3/.
If you are interested, you must read the classic
book
Polyominoes.
In Section
Meditations