There was a Trello card with a remark from @johnk about an idea from Pekr:
Not sure how this would work, but it is an interesting excercise to think about. Something that bridges between unix and rebol syntax like:
ls | greb 'some alpha ".reb"'
(assuming a few more built in rules/charsets)
May need a collect/keep kind of wrapper to retrieve data cleanly.
I've already made things like TAC (backwards unix CAT), where the goal is to see how essential and correct we can make things:
I like the idea of making GREB similarly essential, and part of the samples. Worth doing.
grep was itself originally framed as a one-line
I'll also throw in a little ping that it would be nice to have a simple web app that exposed PARSE functionality with some highlighting, like http://regexpal.com/. Seems sometimes we get such big ideas in our head we forget to do the small ones (!)