I've updated the guide that explains how to create a Codeless Language Module (CLM) for BBEdit with regular expressions (or "irregular expressions" as I explain in the guide).

The how-to walks you through creating a CLM for the newLISP language. Some bugs were found recently in both the final CLM and the guide itself, and have all been fixed. Also, the new version of the downloadable CLM (at the bottom of the guide) includes the most recently added keywords and built-in language functions.