Replace specified phrases on a pageArbitrary substitution of any visible text on a page.
Rewrite customizable patterns in a page. Created mostly for personal amusement, inspired by XKCD #1288 and "cloud to butt." By default provides a sensible "mispell" -> "misspell" replacement.
Supports any Javascript regular expressions, including backrefs and captures. I just visit the visible text nodes on the page and use nodeValue.replace for each provided pattern. This means if there is an overlapping pair of patterns A -> B and B -> C, then both A and B go to C.