RegExp in Tiddlywiki contains practical use cases of regular expression in Tiddlywiki.

http://tw-regexp.tiddlyspot.com/

The regular expression is a way to describe complex search patterns using sequences of characters .

RegExp in Tiddlywiki has four main parts

• Using regular expression to match a pattern in tiddler title
• Using regular expression to match a pattern in tiddler fields excluding tiddler text (body)
• Using regular expression to match a pattern in tiddler body (text field)
• Using regular expression for validation like username, password, etc.