=====Regex Category===== A **regular expression** (regex or regexp for short) is a special text string for describing a search pattern. WikkaWiki makes large use of regex for parsing and formatting [[Docs:FormattingRules | WikkaSyntax]] as valid HTML. The syntax of regex is very rich and there are good [[http://www.regular-expressions.info/ | tutorials]] to start learning it. This category contains links to pages related to the use of **regular expressions** in WikkaWiki. In particular, discussions related to email and link validation, formatters and other functions using regex should be listed in this category. When creating such pages, be sure to include Category Regex [without space] at the bottom of each page, so that page shows here. ---- {{Category col="3"}} ---- [[CategoryCategory | List of all categories]]