Regular Expressions 101

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Community Patterns

3

Hostname validation

Golang
Validates subdomain, root domain, and wild card domains
Submitted by AnonymousDapper - 8 years ago
3

Extract URL parts only named capturing groups

Golang
Extract URL parts only named capturing groups
Submitted by dixanms - 3 years ago
3

Match any layer bracket pair (.NET)

.NET 7.0 (C#)
Match any layer bracket pair
Submitted by Yakumo Yukari - 3 years ago
3

Caltrans EA validation with optional XX-XXXXXX entry and C##-#????#

.NET 7.0 (C#)
Checks validity of an EA number first two digits 01-12 followed by hyphen then a number from 0-4 and then 4 numbers or uppercase letters and ending in a 1 or 4 for example "05-1J7601". Adding a capital C to the beginning is also accepted "C05-1J7601", along with the entry of 2 X's hyphen and 6 X's ...
Submitted by RDJ@Ct - a year ago (Last modified a year ago)
3

Placeholder resolving

.NET 7.0 (C#)
.Net regular expression for resolving placeholders in the format of ${rewriter(multilevel:key)?fallback} (+ variations)
Submitted by anonymous - a year ago
4

C# Regex Extract/Match Nested HTML Elements/Tags

.NET 7.0 (C#)
With this C# regex, you can easily match/Parse Nested HTML tags. Example input: ...
Submitted by w4po - 3 years ago (Last modified a year ago)
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Community Library Entry

3

Regular Expression
Golang

`
(?i)^(?:([a-z0-9-]+|\*)\.)?([a-z0-9-]{1,61})\.([a-z0-9]{2,7})$
`
gm
Open regex in editor

Description

Validates subdomain, root domain, and wild card domains

Submitted by AnonymousDapper - 8 years ago