Regular Expressions 101

All the errors detected are listed below, from left to right, as they appear in the pattern.

\" Escape is not recognized by the selected flavor

\" Escape is not recognized by the selected flavor

Detailed match information will be displayed here automatically.

25 tokens

Regular Expression

(?:(?:\[(?<text>.*)\])(?:\((?<url>https?\:\/\/.*?)(?:\s\"(?<alt>.*?)\"\)|\)))|(?<text>(?<url>https?\:\/\/\S*)))

New

http://host.com
some text http://localhost
Some text
[Link Text](https://url.com "Optionl Alt")

[Link Text 2](http://url.com "Optionl Alt 2")

[Link Text without alt](https://url.com)

dummy link http://dummy.com 

https://none.edu asdsf

Substitution