mkdocs-pages/docs/regex.md

#Regex

I am by no means an expert when it comes to regex, this document will propbably have some inaccuracies in it but hey it is what it is :)

##What is regex?

Regex is shorthand for regular expressions, it is a system for pattern matching in text, when combined with commands it can be used for quite a lot of things

##Useful regex patterns

• . - Matches any char
• ^ - Matches at the start of a line
• $ - Matches at the end of a line
• ? - Matches once or none
• + - Matches once or more
• * - Matches zero or more times
• \d - Match any decimal (0-9)
• \b - Defines a word boundary
• {x} - Repeat exactly x times
• {x, y} - Repeat pattern x to y times

##Regex logic

• | - Logical OR, allows pattern1 OR pattern2 to match
• (x|y) - Matches a group of patterns

I have made a few examples here