Regex

I use regex101 every time I want write a new regex.

Small tip, regex101 has night mode.

Notes

• .* = will select all occurrences

• A regex is useful for validating simple patterns and for finding patterns in text. For anything beyond that it’s almost certainly a terrible choice.

Links

• Learn regex - Great reference.

• DebuggexBeta

• RegexOne - Learn Regular Expressions with simple, interactive exercises.

• Regular Expression in Python HOWTO - Good intro.

• Hyperscan - High-performance regular expression matching library.