Regular Expressions 101

Matches phone #s (aaa) bbb-cccc aaa bbb cccc aaabbbcccc and such.

Extracts HTML tags, HTML entities, alphanumeric words, and the rest.

https

Capturing lucene special characters for escaping

Detects SYNTACTICALLY correct chess moves (i.e. it doesn't check whether the move itself is actually valid)

few

Will select everything between the double quotes in an Iframe's src tag. Useful for retrieving/replacing the URL.

url

Strip comments with /* ... */ or // ...

This RegExp extract text between pipe delimited columns specified by the field index you wish to extract. Exmaple: |test1|test2|test3|test4| (?:(+)\|){1} extracts "text1" (?:(+)\|){2} extracts "text2"...

A regex to match any permutation of JS Fiddles embed URL.