The editor already provides basic search and replace functionality but if you are used to other editors you might miss the possibility to search using regular expressions. This plug-in provides this functionality.
Regular expressions are very powerful and many programmers love their versatility (and many others loathe their poor readability). Whether you love or hate them, they are very expressive: matching any decimal number can simply be expressed as
\d+ for example (one or more digits). If you are looking for a word that is spelled differently in British or American English, such as colour/color, you can match any of them with the expression
colou?r (color with an optional u).
The following ...