Various programs that reference Regular Expressions used to find sequences of characters or digits
RegEx Golf website: https://alf.nu/RegexGolf
RegEx Tester site: https://regex101.com/
RegEx Tester site: https://ihateregex.io/
- Email: /^[a-zA-Z0-9._%+-]+@[^@ \t\r\n]+.[^@ \t\r\n]+/
- Phone: /^[+]?[(]?[0-9]{3}[)]?[-\s.]?[0-9]{3}[-\s.]?[0-9]{4,6}$/
- International Phone: /^[+]?(\d{3}|\d{2}|\d)?[-.\ ]?[(]?\d{3}[)]?[-.\ ]?(\d{4,6}|\d{3}[-.\ ]?\d{4}) *(([xX]|[eE][xX][tT]).? ?(\d+))?$/
- This one allows for domestic, international, and extensions with numbers.