Validate Gregorian calendar dates that contain 24-hour times. This will also correctly match the Feb 29 date when it falls on a valid leap year. Leap years occur every 4 years, with one exception: when a year is evenly divisible by 100 but not evenly divisible by 400, the year will not be a leap ye...

Date with this format YYYY-MM-DD and year start 20 or 21 like 2014

Tests the string if it does contain valid latitude and longitude parameters

help please. i need regex,

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.

This will remove all facebook urls from a HTML string

Only captures value for converting percentage to decimal. Returns empty if percentage but no value. no match = no percentage found

Find Telephone