Regular Expressions 101

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Community Patterns

0

Get the root of a Windows path

PCRE (PHP <7.3)
This extracts the "root" (e.g. drive) from a Windows path. See the unit tests for examples
Submitted by J5lx - 10 years ago
0

Convert PHP var to array

PCRE (PHP <7.3)
I use this regex to quickly convert the class' variables into a string which is usable with the "function" array. I copy-paste the varialbe name and use this regex. Useful to convert all your variable and put it in the magic function __sleep(). After it, you can delete the variables you don't want.
Submitted by anonymous - 10 years ago
0

Finnsih date with the "dd mmmm yyyy" format

Python
Parse a Finnish date with de "dd. mmmm yyyy" or "dd.mm.yyyy" format.
Submitted by Tantale - 10 years ago
0

Remove double-slash comments

Python
This regex removes double-slash comments while avoiding anything between 'quotes' or "double quotes".
Submitted by jlacroix - 10 years ago
0

Improved RegEx101 ID Grabber

PCRE (PHP <7.3)
Grabs the ID and revision from the URL.
Submitted by RF - 10 years ago
0

html tags with exclusions

PCRE (PHP <7.3)
Matches any text starts with ""; Tag exclusions described in first non-capturing group (can be removed); Tag name will be captured by group #1;
Submitted by Pavel Savkin aka nhaizere - 10 years ago
0

year match

PCRE (PHP <7.3)
2010-2012
Submitted by tazbir - 10 years ago
0

test

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 9 years ago
0

File name

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 9 years ago
0

UAE Phone Numbers

Python
no description available
Submitted by Sebastian - 9 years ago
0

YouTube Video ID + URL validator

PCRE (PHP <7.3)
Verifies YouTube video links AND pulls the video ID from them in a matching group. Works with all capitalizations. It also matches the WHOLE link but sorts the video ID into a group. Works with JavaScript, PHP and Python. (Not tested with any other Regex engine) ...
Submitted by Billy Venner - 9 years ago
0

Substitution not wokring

Python
For python regex, substiution not working properly. It is not replcing matched content of $1... and so on. Please take a look.
Submitted by anonymous - 9 years ago
0

brian

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 9 years ago
0

Port mapping

PCRE (PHP <7.3)
no description available
Submitted by yord - 9 years ago
0

Matching lines that starts with -

PCRE (PHP <7.3)
It may be useful inorder to replace those lines with li
Submitted by Said Bakr - 9 years ago
0

Name

ECMAScript (JavaScript)
Simple name matching Matches english names only, you may add international characters to list of characters.
Submitted by Ehsan - 9 years ago
0

Any mail address

PCRE (PHP <7.3)
Any mail address
Submitted by Himalay - 9 years ago
0

Match IP (ipv4) addresses: [0.0.0.0]-[255.255.255.255]

PCRE (PHP <7.3)
Matches ranges from 0-255 for all four octets. Extra leading or trailing '.' invalidate the match, as do values > 255.
Submitted by OnlineCop - 9 years ago
0

media info parser

PCRE (PHP <7.3)
This regex can be used to parse the "general", "video" or "audio" stream metadata returned by the mediainfo.dll inform() call.
Submitted by J.T. Taylor - 9 years ago
0

Matches dash-seperated terms in.

PCRE (PHP <7.3)
no description available
Submitted by anonymous - 9 years ago
1...2829303132...901

Community Library Entry

0

Regular Expression
PCRE (PHP <7.3)

/
(?:[hH][tT]{2}[pP][sS]{0,1}:\/\/)?[wW]{0,3}\.{0,1}[yY][oO][uU][tT][uU](?:\.[bB][eE]|[bB][eE]\.[cC][oO][mM])?\/(?:(?:[wW][aA][tT][cC][hH])?(?:\/)?\?(?:.*)?[vV]=([a-zA-Z0-9--]+).*|([A-Za-z0-9--]+))
/
g
Open regex in editor

Description

Verifies YouTube video links AND pulls the video ID from them in a matching group. Works with all capitalizations. It also matches the WHOLE link but sorts the video ID into a group.

Works with JavaScript, PHP and Python. (Not tested with any other Regex engine)

WARNING: youtu.be links have their ID group as the second group.

Submitted by Billy Venner - 9 years ago