checks the email string for valid

Find the GPS coordinates in a Google Maps' URL ex. : https://www.google.fr/maps/place/Nancy/@48.6880809,6.173437,14z/data=!3m1!4b1!4m2!3m1!1s0x4794986e17a692cd:0x4ed671b10d82498d Get these : lat : 48.6880809...

Dovrebbe beccare anche eventuali caratteri '' (due apici singoli)

checks for ie 11 user agent

A powerful regex (fewest steps possible) which gives you all the information about urls.

correctly handle the case where the value is splitted on multiple lines.

White space

This version matches any sentence that sounds like yelling even it doesnt end with ? or !

Parses date-time duration strings +-1y2M3d4h5m6s, where 'm' is the dafault. Like this, where {} contains list of capturing groups: 21 - parsed as {,,,,21,} 2y2s - parsed as {2,,,,,2}