This can be used in webMethods for checking whether the string is not null or blank

Used in JavaScript, can create a string of hard word-wrap text. Expression used 80 as the word-wrap point, but it can be changed to suit your purpose. RegEx provided by @DanThomas. TAGS: @WordWrap @Word-Wrap

Validates upper and lower case, allows all : or all -. Obtained here: http://stackoverflow.com/questions/4260467/what-is-a-regular-expression-for-a-mac-address ...

Prevent acidental deletion of important system files and user directories.

Policy: At least five digits. No whitspaces. Two out of four groups - digits, lowercase, uppercase, special charterers

this is the starting regex for breaking up the cache image url into it's parts

Regex to detect Degrees Minutes in coordinate system WGS84

Cannot enter 0 or a proper fraction

Originally used as a search and replace in database fields to change the URL strings to point to .jpg's instead of .png's. Can be used generically as a search and replace in URL's.