Gets all numbers in a string. This includes positive and negative numbers aswell as integers and floats. By: http://www.benlorantfy.com/

Match regular expressions substitutions, I personally use this to perform my validate if it is a substitution, then call re.sub() on it.

Matches HTML structure

testing the string abc xyx 12 13 a a b

Capture alternative items matching end of lines country codes

This regular expression splits an address line like for example "1117 Franklin Blvd" into the street name and house number. It also supports addresses where street name and house number are the other way around (e.g. "Mustermannstr. 1"). Furthermore, this regular expression also supports address li...

Matches integers and decimals with or without thousands grouping.

match bibtex entries

This regex matches java line end comments started with "//" and ignores such ones that are within String literals. (NO SUFFICIENT TESTING WAS DONE TO GUARANTEE 100% SAFETY)

Looks for string formated like an IP address.

HTML CODE given by (hex number   OR number &#160 OR name  )