Well, I would like to tackle that but unfortunately I do not have enough time to do things for free. :(

Is there any demand for it anyway?

I think there would be, but I can only raise my own hand :-)

A tool called sd exists that's close enough for sed, but I haven't seen anything similar for awk.

	▲	johnisgood 32 minutes ago \| parent [-]
		I took a minute to think about it. It would be much more work to add it to awk. :( And replacing every regex evaluation could slow scripts significantly, although this could be a good challenge! :D Are you using "sd" or is there anything wrong with it as a replacement of sed?