Codice avviamento postale Italiano (ZIP)

Validates all possible emails with western and cyrilic chars.

Simple file names. Special chars allowed (-_.) {3, 40}

Adopted one of answers from: http://stackoverflow.com/questions/5948051/regex-extract-twitterusername-from-url

match int or float number, and following word (unit for example)

Find any url('~filename.jpg'). URL must contain tilde

I use this to match the first url present in a text message.

Unicode user name check with som allowed non-alhanum characters

Matches Portuguese phone numbers.

Matches HTML structure

Convert Arrow Function to Normal Function

This is a regular expression for date in javascript. It validates the month between 01-12 (double digits only). It validates the day between 01-31 (double digits only). And enforces 4 digit year (no validation for range).

date format for "yyyy-MM-dd hh:MM" valid strict model.