/// <summary>
/// Matches a phone number.
/// </summary>
/// <param name="pattern">The pattern.</param>
/// <param name="kind">The kind.</param>
/// <returns>Returns a <see cref="PatternExpression"/>.</returns>
public static PatternExpression Phone(this PatternExpression pattern, PhoneNumberKind kind = PhoneNumberKind.Default)
{
switch (kind)
{
default:
return(new PatternExpression(pattern.Build() + @"^((\(\d{3}\) ?)|(\d{3}-))?\d{3}-\d{4}$"));
}
}
