validate email address

http://stackoverflow.com/questions/34474298/regex-match-pattern-with-prefixed-string/34474387#34474325

Are you pissed off with your regular expression homework? well then. here is the answer. ^([0-9]|1-9|1(0-9)|2(0-4|5[0-5]))\.([0-9]|1-9|1(0-9)|2(0-4|5[0-5]))\.([0-9]|1-9|1(0-9)|2(0-4|5[0-5]))\.([0-9]|1-9|1(0-9)|2(0-4|5[0-5]))$

it accept -, / and . operator date formate 29-Dec-2015

This catches a few formats for dates, including the year, and seperates as much as I think at the moment is possible to make it easy to manipulate the needed data points in the expression

Extracts HTML tags, HTML entities, alphanumeric words, and the rest.

Remove trailing spaces from CSV files

Matches words (with certain special chars) and one or more spaces in between those words.

Used to get the phone number from a list of phone numbers