yes, \011 and \015 are codes, but they're octal codes, so that's ascii 9 and 13 respectively.

You might be more familiar with these as \t and \r; although I suppose the octal codes are more 'leet'.

The meaning of \0 is documented in perldoc perlre, which is something with which anyone who *really* wants to know REs should be familiar =)</gentle poke>

Philosophy can be made out of anything. Or less -- Jerry A. Fodor