Formatting on code blocks

Is there any chance code boxes in KB articles or other places be formatted like on some web pages such as jsfiddle.net
Ideally it would be nice for:

1. Line Numbers
2. Possible colour coding (like on prism.js/highlight.js)
3. like on jsfiddle, the ability to click a box, then click Control+A to highlight the entire code area rather than the entire page.