Regular Expressions 101

Explanation
Pro

1st Alternative(?:vnc|s3|ssh|scp|sftp|ftp|http|https)\:\/\/[\w\.]+(?:\:?\d{0,5})

Non-Capturing Group(?:vnc|s3|ssh|scp|sftp|ftp|http|https)

1st Alternativevnc

vncthe literal text vnc (case sensitive)

2nd Alternatives3

s3the literal text s3 (case sensitive)

3rd Alternativessh

sshthe literal text ssh (case sensitive)

4th Alternativescp

scpthe literal text scp (case sensitive)

5th Alternativesftp

sftpthe literal text sftp (case sensitive)

6th Alternativeftp

ftpthe literal text ftp (case sensitive)

7th Alternativehttp

httpthe literal text http (case sensitive)

8th Alternativehttps

httpsthe literal text https (case sensitive)

\:the literal : (58₁₀ / 72₈ / 3A₁₆)

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

Character Class[\w\.]+

+matches at least one character from the set below:

\wany word character

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

Non-Capturing Group(?:\:?\d{0,5})

\:?optionally matches the literal : (58₁₀ / 72₈ / 3A₁₆)

\d{0,5}a digit, repeated between 0 and 5 times

2nd Alternative(?:mailto|)\:[\w\.]+\@[\w\.]+

Non-Capturing Group(?:mailto|)

1st Alternativemailto

mailtothe literal text mailto (case sensitive)

2nd Alternative — matches an empty string

\:the literal : (58₁₀ / 72₈ / 3A₁₆)

Character Class[\w\.]+

+matches at least one character from the set below:

\wany word character

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

\@the literal @ (64₁₀ / 100₈ / 40₁₆)

Character Class[\w\.]+

+matches at least one character from the set below:

\wany word character

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

Global pattern flags

g modifier: global. Finds all matches instead of stopping after the first

Match Information

Detailed match information will be displayed here automatically.

Quick Reference

25 tokens

Regular Expression

(?:vnc|s3|ssh|scp|sftp|ftp|http|https)\:\/\/[\w\.]+(?:\:?\d{0,5})|(?:mailto|)\:[\w\.]+\@[\w\.]+

http://www.site1.com/perma/doom-rock.htm
http://www.site2.net/mod/doom.html
https://www.site3.com/m/doom-rock
http://site4.com/doom
https://site5.com/doom

Extraction

http://www.site1.com/perma/doom-rock.htm
http://www.site2.net/mod/doom.html
https://www.site3.com/m/doom-rock
http://site4.com/doom
https://site5.com/doom