Part of the digital toolset of  
Regex Text Replace
Online tool to find/replace text with regular expressions; 100% client-side.
find: regular expression           ( example:  ([a-z\.\_\-]+@[a-z\.\_\-]+)  )
regex options (ex:gimsuy)
replace             ( example:  <a href="mailto:$1">$1</a>  )
text input
CLIENT SIDE: All editing and processing is done in your browser.   Text is not sent to a server (unless action link is used).

Action Link:<regex>&ops=<options>&replace=<expression>&txt=<text>