Regular Expressions 101

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Community Patterns

-2

Ascending and Descending order

Java 8
This regex is to match Ascending or descending order of 8 digit number
Submitted by anonymous - a year ago
-1

匹配引号内容/match quotation mark content

ECMAScript (JavaScript)
匹配带引号内容，被引号包含的内容 结构($x) ((前引号)(内容)(后引号)) ...
Submitted by 诶!你的尾巴掉了 - a year ago (Last modified a year ago)
-2

Codeforces 1800A Solution

ECMAScript (JavaScript)
By inserting this regex in a programming language to test it against Codeforces 1800A you'll solve the task
Submitted by EntityPlantt - a year ago
0

Regex many

PCRE2 (PHP >=7.3)
Search and change many regex matches
Submitted by anonymous - a year ago
0

BDO client ID

PCRE2 (PHP >=7.3)
Validates client IDs
Submitted by anonymous - a year ago
0

Splitting Inconsistent Addresses

PCRE2 (PHP >=7.3)
This pattern matches inconsistent addresses that have various street names and coordinates. This captures the Address 1 & 2, Type of Street, Coordinates (NE, NW, SE,SW) City, State, and Full zip
Submitted by Nadira S Fant - a year ago
0

Salesforce - Flow Naming Conventions

PCRE2 (PHP >=7.3)
Ensure that Salesforce Flow name meets the following standards: - -
Submitted by anonymous - a year ago (Last modified a year ago)
0

Validate comma-separated list of values (allowed: words; digits; special characters; single non-trailing non-leading spaces;)

PCRE2 (PHP >=7.3)
Validate comma-separated list of values (allowed: words; digits; special characters; single non-trailing non-leading spaces;)
Submitted by anonymous - a year ago
0

Twitch data capturing

ECMAScript (JavaScript)
Matches the data sent by the twitch IRC and captures into various groups
Submitted by Bucky - a year ago (Last modified a year ago)
0

text has numbers

ECMAScript (JavaScript)
text has numbers
Submitted by vijay - a year ago
0

email matcher

PCRE2 (PHP >=7.3)
match some emails and extract their local part and domain
Submitted by dang duomg 191 - 5 months ago (Last modified 5 months ago)
1...898899900

Community Library Entry

1

Regular Expression
PCRE (PHP <7.3)

/
^((?:https?:)?\/\/)?((?:www|m)\.)?((?:youtube\.com|youtu.be))(\/(?:[\w\-]+\?v=|embed\/|v\/)?)([\w\-]+)(\S+)?$
/
g
Open regex in editor

Description

Youtube URL validator Credit to: phuc77

The captured groups are:

protocol

  • subdomain
  • domain
  • path
  • video code
  • query string

Works with the following URLs:

https://www.youtube.com/watch?v=DFYRQ_zQ-gk&feature=featured
https://www.youtube.com/watch?v=DFYRQ_zQ-gk
http://www.youtube.com/watch?v=DFYRQ_zQ-gk
//www.youtube.com/watch?v=DFYRQ_zQ-gk
www.youtube.com/watch?v=DFYRQ_zQ-gk
https://youtube.com/watch?v=DFYRQ_zQ-gk
http://youtube.com/watch?v=DFYRQ_zQ-gk
//youtube.com/watch?v=DFYRQ_zQ-gk
youtube.com/watch?v=DFYRQ_zQ-gk

https://m.youtube.com/watch?v=DFYRQ_zQ-gk
http://m.youtube.com/watch?v=DFYRQ_zQ-gk
//m.youtube.com/watch?v=DFYRQ_zQ-gk
m.youtube.com/watch?v=DFYRQ_zQ-gk

https://www.youtube.com/v/DFYRQ_zQ-gk?fs=1&hl=en_US
http://www.youtube.com/v/DFYRQ_zQ-gk?fs=1&hl=en_US
//www.youtube.com/v/DFYRQ_zQ-gk?fs=1&hl=en_US
www.youtube.com/v/DFYRQ_zQ-gk?fs=1&hl=en_US
youtube.com/v/DFYRQ_zQ-gk?fs=1&hl=en_US

https://www.youtube.com/embed/DFYRQ_zQ-gk?autoplay=1
https://www.youtube.com/embed/DFYRQ_zQ-gk
http://www.youtube.com/embed/DFYRQ_zQ-gk
//www.youtube.com/embed/DFYRQ_zQ-gk
www.youtube.com/embed/DFYRQ_zQ-gk
https://youtube.com/embed/DFYRQ_zQ-gk
http://youtube.com/embed/DFYRQ_zQ-gk
//youtube.com/embed/DFYRQ_zQ-gk
youtube.com/embed/DFYRQ_zQ-gk

https://youtu.be/DFYRQ_zQ-gk?t=120
https://youtu.be/DFYRQ_zQ-gk
http://youtu.be/DFYRQ_zQ-gk
//youtu.be/DFYRQ_zQ-gk
youtu.be/DFYRQ_zQ-gk

https://www.youtube.com/HamdiKickProduction?v=DFYRQ_zQ-gk
Submitted by Haroun SMIDA - 8 years ago