Matches unfilled placeholders and (nested) placeholder blocks

Format: +3816...

Sva slova Latinice od 4-20 karaktera

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