[brigandish]

I used to use Applescripts with BBEdit but it's got unix script support too.

For example, I write Ruby scripts that act on the file, either to change to the text or just to run commands, and snippets are available to fill out text with a jumping cursor to replacement points. I'm not sure what Sublime Text packages offer that BBEdit can't as it's been a while since I used ST/Textmate regularly.