On Tue, 29 Jun 2004, Mike Taylor wrote:
>> From: Robert Sanderson <[log in to unmask]>

> (or whatever).  There is no analogous flexibility in scan responses --
> and I am inclined to think that is as it should be, contra Matthew's
> proposal for solving this problem.

I don't think that making <value> the same type as <recordData> is the way
to go either, TBH.

> Perhaps CQL itself should be more specific about what is allowed in
> identifiers?  As presently written, the specification allows control
> characters in index names, for example.

Printable characters only, preferably simple ascii or UTF-8, but
applications should be prepared to accept UTF-16 as well?

...

> I disapprove heartily of this -- you're conflating two essentially
> unrelated issues here: what kind of thing the term is (word, image,
> audio-file) and how it's encoded for transfer.  Which is of course
> precisely why MIME defines two separate headers.
>
> I think we should just have two new relation modifiers:
>        cql.base64
>        cql.quoted-printable
> which indicate the encoding of the term; and if it turns out in the
> future that there is also a need to convey content-type, then that
> should be handled by a new relation modified when it's needed.
>        foo.image =/cql.base64/cql.content-type="image/gif" "R0lGODlh..."

or:

   =/mime.content-type="image/gif"/mime.transfer-encoding="base64"

eg to allow:

# 7-Bit - Data is sent as US-ASC data.
# 8-Bit - 8 bit characters are included in short lines.
# BASE64 - Used for binary files. Three bytes are transformed into 4 ASC
            characters in lines limited to a length of 76 characters.
# Binary - Long lines are sent using 8 bit characters. These lines may not
            be transportable using SMTP.
# Quoted-Printable - Used for ASC text. Line length is limited to 76
                      characters.
# X-Token - Defines private encoding values prefixed with an "X-".


Rob

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