Regular Expressions 101

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Community Patterns

19

Get path from any text

Recommended
PCRE2 (PHP >=7.3)
Get path (windows style) from any type of text (error message, e-mail corps ...), quoted or not. THIS IS THE SINGLE LINE VERSION !_ If you want understand how it work or edit it, go https://regex101.com/r/7o2fyy Relative path are not supported...
Submitted by nitrateag - 2 years ago (Last modified a year ago)
34

Strict Password Validator

ECMAScript (JavaScript)
This regex matches only when all the following are true: password must contain 1 number (0-9) password must contain 1 uppercase letters password must contain 1 lowercase letters password must contain 1 non-alpha numeric number...
Submitted by qho - 7 years ago (Last modified a year ago)
13

CSS Color Matcher

ECMAScript (JavaScript)
Pattern matching and extracting color code formats using RegEx. https://github.com/Kyza/color-regex/
Submitted by Kyza - a year ago
30

Cron schedule

Recommended
PCRE (PHP <7.3)
Validate cron lines (even the ones commented out)
Submitted by anonymous - 9 years ago
24

best youtube id match ( iframe embed replace ready )

Recommended
PCRE (PHP <7.3)
MATCH ANY YOUTUBE ID author : mi-ca v1.0 – 2017.03.08 This Regex match any youtube url and grab the ID. Embed ready √ --...
Submitted by mi-ca.ch - 6 years ago
1...900901902

Community Library Entry

0

Regular Expression
Python

r"
^(?P<Username>[-\w\.]+)(?:\s+\W*at\W*\s+|\s*[^\@\s]*?@[^\@\s]*?\s*)(?P<Domain>([\w\-]+)(?:(?:\.|\s+\W*?dot\W*?\s+)([\w\-]+))+?(?:(?:\.|\s+\W*?dot\W*?\s+)([\w\-]+))??$)
"
gm
Open regex in editor

Description

Parses email, also distorted ones, and convert them back to the real ones. It can recognize at maximum two dots notations, just add '.\5' at the end of the substitution string. Inspirated by dislick's work: https://regex101.com/r/wB7xJ7/1

Submitted by fine_dust - 9 years ago