Well, the real problem here is that there's not really a 'standard' you can rely on in the first place. And while it's true that text isn't a necessary part of

Well, the real problem here is that there's not really a 'standard' you can rely on in the first place. And while it's true that text isn't a necessary part of the general problem, in my experience text-based formats seem especially prone to it. How many times have you seen people attempt to use regular expressions to parse HTML/validate e-mail addresses/whatever?