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Re: [Extra] AD Review of draft-ietf-extra-imap4rev2

"Murray S. Kucherawy" <superuser@gmail.com> Mon, 04 January 2021 18:48 UTC

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From: "Murray S. Kucherawy" <superuser@gmail.com>
Date: Mon, 04 Jan 2021 10:48:09 -0800
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To: Barry Leiba <barryleiba@computer.org>
Cc: Alexey Melnikov <alexey.melnikov@isode.com>, extra@ietf.org
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Subject: Re: [Extra] AD Review of draft-ietf-extra-imap4rev2
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On Mon, Jan 4, 2021 at 10:11 AM Barry Leiba <barryleiba@computer.org> wrote:

> >>> Section 2.2.1
> >>>
> >>>   Clients MUST follow the syntax outlined in this specification
> >>>    strictly.  It is a syntax error to send a command with missing or
> >>>    extraneous spaces or arguments.
> >>>
> >>> It seems unnecessary to say this in a standards track document.
> There’s a similar paragraph in Section 2.2.2.
> >>
> >> I think the text is there due to various bugs in implementations, so I
> would rather keep it as is.
> >
> > I would use "need to" instead of "MUST" here.  It's otherwise a bit
> hand-wavy for use of BCP 14 language.
>
> Over the years, we have seen a LOT of implementations that mess this
> up, thinking that because IMAP command streams are "readable", they
> can add spaces to "improve readability", and then they complain that
> things break.  Because of that, I think it's important to have this
> text, and I think it's important to use BCP 14 language (it's a *real*
> interoperability issue).  I feel pretty strongly about this, as
> someone who's many times had to help people fix their implementations
> because they weren't warned explicitly about it.
>

OK, I'm done pushing on this one.  Just wanted to make sure.  :-)

-MSK

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