Regular Expressions 101

Please wait while the app is loading...

Regular Expressions 101

@regex101 Donate Sponsor Contact Bug Reports & Feedback Wiki What's new?

Order By

Filter by Flavor

Sponsors

All your environment variables, in one place

Library entries

Search library

3

C# Regex Extract/Match Nested HTML Elements/Tags

With this C# regex, you can easily match/Parse Nested HTML tags. Example input: someTitle ...

Submitted by w4po - a year ago

3

Match any layer bracket pair (.NET)

Match any layer bracket pair

Submitted by Yakumo Yukari - a year ago

2

Matching decimals in european format (dot as grouping separator, comma as decimal separator)

A regex for validating decimal numbers in the European number format (in many parts of Europe at least, including Germany). A comma is used as a separator for the decimal number, a dot as a separator for thousand places.

Submitted by Florian Drees - 2 years ago

2

Comparison of decimals with operators such as <, >, !=, ==, <>

Regex expression for comparing decimal numbers with the usual comparison operators such as (greater than), >= (greater than or equal to), != (not equal to), == (equal to), ... The regex also allows filtering of data from e.g. a database, whereby the first value is not needed, e.g. [FIELD] < 100

Submitted by Florian Drees - 2 years ago

2

Markdown Heading

Parses the text following a '#' and a space all the way up to the next return character. Additional #'s can be added for parsing of other type of headings!

Submitted by Hansen - a year ago

2

Asciidoc PlantUML Block

Regex to select PlantUML Block in Asciidoc documents

Submitted by anonymous - a year ago

2

Replace sub-strings in string

Replace sub-strings in string

Submitted by anonymous - 3 months ago

1

Mime type parser

A "simple" regex to parse mime types. Handles all commonly occurring parts of a mime type string such as: Type Subtype Subtype's with an extra extension (e.g. svg+xml) (Optional input) Multiple parameters (Optional input)...

Submitted by Vespion - a month ago

1

UNC Path Component Validation - Sharename

There are specific requirements for the different components of a UNC path. While it's possible to try and validate the entire UNC path in one go, you quite often end up needing to break the path down anyway unless simply handing it off to some other library (in which case they should be providing v...

Submitted by thejamesdecker - 3 months ago

1

Phone number for all countries

Phone number for all countries. Valid symbols: ( ), -, whitespace

Submitted by Alexander Smirnov - a month ago

1

Replace ^ with Math.pow function. Not made to work with braces.

Replaces ^ with Math.pow function call. This assumes all braces have been combined first. If you need help with the combination, I got you—try this Python algorithm: def evaluate_braces(expr): """Recursively evaluate expressions within braces""" Check if expression contains braces if '(' in...

Submitted by Glitchii - https://github.com/Glitchii - 4 days ago

1

String doesn't start or end with . - '

String doesn't start or end with . - '

Submitted by VS - 2 years ago

1

Match all numbers

Match all numbers from a string.

Submitted by VS - 2 years ago

1

Sınıfları Tek Tek seçme

Submitted by anonymous - 2 years ago

1

sim ou não

expressão regular que só aceita s para sim e n para não

Submitted by José Airton Neto - 2 years ago

1

Match segmented paths with '\' and '/' escaped by '\'

Match segmented paths with '\' and '/' escaped by '\'

Submitted by anonymous - 2 years ago

1

css attribute validation

css attribute validation

Submitted by arnab - 2 years ago

1

标点

匹配大部分标点

Submitted by anonymous - 2 years ago

1

sfdgvsdgdfg

Submitted by anonymous - 2 years ago

1

yyyy/mm/dd

^(((\d{3}[1-9]|\d{2}[1-9]\d|\d[1-9]\d{2}|[1-9]\d{3})(\/)(((0[13578]|1[02])(\/)(0[1-9]|[12]\d|3[01]))|((0[469]|11)(\/)(0[1-9]|[12]\d|30))|(02(\/)(0[1-9]|[1]\d|2[0-8]))))|(((\d{2})(0[48]|2468|13579)|((0[48]|2468|3579)00))(\/)02(\/)29))$ Match year/month/day, date format. E.g: 2021/08/25 [match] 2021/...

Submitted by mayl0421 - 2 years ago

1 2 3 4...13