This plugin allows you to write regular expressions in natural language.
Blast.js separates text in order to facilitate typographic manipulation. It has four delimiters built in: character, word, sentence, and element. Alternatively, Blast can match custom regular expressions and phrases.
Blast's uses include typographic animation, juxtaposition, styling, search, and analysis.
highlightRegex is a jQuery Plugin that lets you highlight document text with a regular expression.