Regular Expressions 101

Please wait while the app is loading...

Regular Expressions 101

@regex101DonateSponsorContactBug Reports & FeedbackWikiWhat's new?

Order By

Sponsors

Library entries

0
dotnet

Migrate infoboxes in AWB: Music phase 1

Turn comma separated values in three deprecated parameters into template calls. (timestamp not considered yet)
Submitted by anonymous - a year ago
0
dotnet

Migrate infoboxes in AWB: Music phase 3

Insert "|tracks=" before the first occurrence
Submitted by anonymous - a year ago
0
dotnet

Migrate infoboxes in AWB: Music phase 2

Remove deprecated parameters
Submitted by anonymous - a year ago
0
dotnet

篩選MP Log Day

篩選MP Log Day
Submitted by anonymous - a year ago
0
dotnet

Missing copyright detector for Visual Studio (.NET)

Detects one match per file if that file is missing the expected copyright text. This works with Visual Studio IDE. If you are using Rider (PCRE2), you can replace both \b entries with \Q then \E
Submitted by Kris Morness - a year ago
0
dotnet

E-mail

My first simple e-mail validator regex :)
Submitted by anonymous - a year ago
0
dotnet

Match using named groups in .NET (C#)

Developed for posh-git
Submitted by marckassay - 9 months ago
0
dotnet

Match all filenames in any URL including those with ANSI escaped characters (dotNET version)

Match all filenames in any URL including those with ANSI escaped characters (dotNET version)
Submitted by The Fourth Bird - 9 months ago
0
dotnet

Ipv4 with optional port

ipv4 with optional port
Submitted by anonymous - 9 months ago
0
dotnet

No leading or trailing spaces

No leading or trailing spaces
Submitted by anonymous - 9 months ago
0
dotnet

Nepali phone number regex

(\+977)?9\d{8}
Submitted by anonymous - 9 months ago
0
dotnet

Guid parser

Guid parser
Submitted by anonymous - 8 months ago
0
dotnet

XAML invert Grid.Column and Grid.Row to Grid.Row and Grid.Column

Inverts the 2 attributes
Submitted by anonymous - 8 months ago
0
dotnet

ISO 8601:2004E Duration

Regex for validating ISO 8601:2004E durations, complete with named capture groups.
Submitted by Sakura Akeno Isayeki - 8 months ago
0
dotnet

UK PostCode Validation

Flexible postcode validation with or without space as outlined here, but added optional space for flexibility https://assets.publishing.service.gov.uk/government/uploads/system/uploads/attachment_data/file/488478/Bulk_Data_Transfer_-_additional_validation_valid_from_12_November_2015.pdf
Submitted by anonymous - 8 months ago
0
dotnet

URLs and Emails RegEx

A neat regular expression to extract web urls and emails from a paragraph or a text stream.
Submitted by kosalanuwan - 7 months ago
0
dotnet

Camel Case - no digits allowed - Upto 3 upper case letters

To be proper camel case a word with no digits allowed and upto 3 upper case letters, a word: Must start with a lower case alphabet (a through z) Must have no digits (0 - 9) MUST have no spaces, punctuation or special characters Can have at most 3 uppercase alphabets in a row Can end in an uppercase ...
Submitted by anonymous - 7 months ago
0
dotnet

Camel Case - digits allowed - Upto 3 upper case letters

Camel Case - digits allowed - Upto 3 upper case letters To be proper camel case a word with digits allowed and upto 3 upper case letters, a word: MUST start with a lower case alphabet (a through z) MUST have no spaces, punctuation or special characters CAN have at most 3 uppercase alphabets in a ro...
Submitted by anonymous - 7 months ago
0
dotnet

Negative lookbehind

There is not word boundary between the >< and as there seem to be at least 1 or more uppercase characters, then quantifier can be + to match 1 or more times. If you don't want to split at the start of the string, creating an empty entry in the result list, you can assert using a negative lookbehind ...
Submitted by anonymous - 7 months ago
0
dotnet

Username regex

Matches alphanumeric, @, . , -
Submitted by Ethan Pedersen - 7 months ago
1234

Alien Registration Number

Vote

0

Regular Expression
java

"
(([A-Za-z]{3}[0-9]{10})|([A-Za-z]{3}(\s)([0-9]{2}(\s)[0-9]{3}(\s)[0-9]{5})))
"
gm
Open regex in editor

Description

Loading markdown...
Submitted by anonymous - 2 years ago