Would be very useful if we could paste a github file url and refactor.io could just render the file (or a portion of it based on the github url) rather than pasting code manually.
Also, I was trying to comment on a code snippet I created. It would have been convenient to be able to refer to a specific line using shorthand (like #14, etc.) in a comment rather than pasting the entire snippet again with a diffed view.
This is EXACTLY what I started doing yesterday for the @Ehesp Responsive-Dashboard project. Glad you got it done before I got anywhere with it. Very useful to small one-off projects!
I'm definitely hard-coded to not use ctrl+c or ctrl+z for copy/undo inside of a terminal, but I can see how this would make it easier for those just starting out to get used to terminal commands. Homogenizing our hotkeys with the ones used in GUIs isnt a bad thing, but it's certainly going to make things hairy for a while if more command line tools follow suit (how do I know which ones use which? Could lead to some very costly mistakes when I try to copy).
I always wanted something like this to become popular and gain a user-base because it might lead to a more community-feeling web.
Here's hoping you accomplished it. Cheers.