This regex validates varying types of telephone numbers.

http://stackoverflow.com/q/25778420/2072035

A-Za-z\x{0600}-\x{06FF}\x{1000}-\x{1021}_-*

used to parse timezone in the format -08:00 or +05:30

Returns key/value pair of a url. Also works with google fonts which has additional information

Captures all fields from a CSV file's line. Can be customized with user-defined field separator and protecting character.

Matches distorted email addresses and converts them back to real ones.

Grabs sentences including terms like: e.g. z.b. Figs.These get caught in 1st capturing group. Problem: how to only accept matching sentences which contain pattern \b\d+[a-z]{0,2}\b?

trim string

Matches text within quotes (", ') and escapes the charecters.

This may be useful or not to test whether a given string is a valid (more or less) html color value. It matches color values such as: #123 - short hex color value #123456 - hex color value rgb(255,255,0) - rgb color value rgba(255,255,0,1.0) - rgba color value hsl(360,100%,100%) - hsl color value...

Checks for valid UK/British postcodes. There was another on here that had for some reason been upvoted, but it was actually incorrect as it worked on none of my valid own postcodes! Namely that it assumed two letters and a number (BS3) when you can have variations (M20). Allows for an optional spac...

Attempts to mimic Google search box behavior, returning an array with the separated search strings (that keep the +/- indicator for following operations)

Finds the outermost pair of parentheses. Compatible with any amount of nesting