main symbols and comments are supported

Besides leap year handling, this takes care of date validation in the yy-mm-dd format.

Extracts values of the form £nnn,nnn.nn or $nnn.nnn from text

Matches all valid IP addresses from 0.0.0.0 to 255.255.255.255

Matches ISO 8601 date formats

This is simplified from my last submission.

Parse an English date following the "dd mmmm yyyy" format.

This is a JavaScript port of the URL regex from http://stackoverflow.com/a/190405/384062 that includes a bug fix and some optimization. Mathias Bynens's Regenerate was used to convert unicode escapes. Bug fix: Eliminated stray | falsely allowing querystring to contain | ...

This regex should extract the subdomain, if any, or the domain, if no subdomain is used, from an arbitrary URL

Simply searches for the thread-id in any kind of valid reddit-URL.

This regex validates varying types of telephone numbers.

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...

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