TXT data should be treated as binary

[aeden]

According to RFC 1035:

<character-string> is a single
length octet followed by that number of characters.  <character-string>
is treated as binary information, and can be up to 256 characters in
length (including the length octet).

and

<character-string> is expressed in one or two ways: as a contiguous set
of characters without interior spaces, or as a string beginning with a "
and ending with a ".  Inside a " delimited string any character can
occur, except for a " itself, which must be quoted using \ (back slash).

Therefore unquoted TXT data should be treated as the first contiguous character string of 1 to 255 characters following the TXT type declaration, and quoted TXT data should be treated as any contiguous character string of 1 to 255 characters, inside quotes.

At the moment unquoted TXT is limited to a regular expression that still includes many allowable characters, which should instead be changed to allow any non whitespace, however trying to make this change currently breaks the spec.