Matches any Greek Phone with 10 digits starting with '2' or '69'

Matches every sentence in your string

Regex for URLs

Regex for accepting Alphanumeric + Multi-Lingual characters (No special chars, spaces, underscore)

This simple expression eats more resource than you expected... :)

just a simple game

This validates that the string is a File or directory path - Absolute or Relative, or empty string.