Valida data no padrão YYYY-MM-DD Por causa de limitações do regex, não valida ano bissexto, por isso sempre vai retornar 29/02 de qualquer ano como True

https://fr.wikipedia.org/wiki/Plaque_d'immatriculation_fran%C3%A7aise#Num%C3%A9rotation AA001AA Note : I, O and U are forbidden (too close to 1, 0 and V). 3 digits number ranges from 001 to 999.

1) Usernames can only use alpha-numeric characters. 2) The only numbers in the username have to be at the end. There can be zero or more of them at the end. Username cannot start with the number. 3) Username letters can be lowercase and uppercase. ...

вырезаем деньги из текста

helper to create local-names xpath

Considering Function also such as boolean()

Grab time from datetime