[REGEX 101] Regex 101 #regex #101

REGEX101.md

REGEX 101

• Trim spaces ^[\s]*(.*?)[\s]*$

• HTML tag <([a-z]+)([^<]+)*(?:>(.*)<\/\1>|\s+\/>)

• Hexadecimal value \B#(?:[a-fA-F0–9]{6}|[a-fA-F0–9]{3})\b

• Valid Email \b[\w.!#$%&’*+\/=?^`{|}~-]+@[\w-]+(?:\.[\w-]+)*\b

• Username check /^[a-z0-9_-]{3,16}$/

• Strong password check (?=^.{6,}$)((?=.*\w)(?=.*[A-Z])(?=.*[a-z])(?=.*[0-9])(?=.*[|!"$%&\/\(\)\?\^\'\\\+\-\*]))^.*

• URL ^(((https?|ftp):\/\/)?([\w\-\.])+(\.)([\w]){2,4}([\w\/+=%&_\.~?\-]*))*$

• IPV4 Addresses \b(?:(?:25[0-5]|2[0-4]\d|[01]?\d\d?)\.){3}(?:25[0-5]|2[0-4]\d|[01]?\d\d?)\b

• Grep words between quotes (["'])(?:(?=(\\?))\2.)*?\1

• Anchor HREF Link URL href=(?<QUOTE>[\""\'])?(?<URL>(?<SCHEME>(file|ftp|http|https|news|nntp):\/\/|mailto\:)?(?<EMAIL>[\w-]+@)?(?<HOST>(?(SCHEME)[\w]+(\.[\w-]+)*?))(?<PATH>\/?\w*[\w-%\:\.\+\/]+)?(?<QUERY>\?[\w-%\+:\.]*(=[\w-%\+:\.]*)?(&[\w-%\+\:\.]*(=[\w-%\+:\.]*)?)*)?(?<ANCHOR>\#[\w-%\+:\.]+)?)(?<-QUOTE>[\""\'])?(?#VALIDATE QUOTES/URL)(?(PATH)|(?(SCHEME)|(?!)))(?(QUOTE)(?!))

• Inverse multiple matching ^(?:(?!apache2|php).)*$

• Matching several ^(\/var\/log\/auth\.log|\/var\/log\/syslog|\/var\/log\/messages)$