[DFDL-WG] Fwd: Implementation limits

[Mike Beckerle]

Just reactivating this old stale thread. I don't see any language about
this in the current draft I am working on which has all the v12 errata in
it.

Do we think this is needed? If so an action item to create the language is
needed.


---------- Forwarded message ----------
From: Mike Beckerle <mbeckerle.dfdl at gmail.com>
Date: Tue, Jan 22, 2013 at 11:06 AM
Subject: Re: [DFDL-WG] Implementation limits
To: Steve Hanson <smh at uk.ibm.com>
Cc: dfdl-wg at ogf.org


There is a section in the material about error types/kinds on
implementation limit errors.

It gives examples of implementation limits that might exist in different
implementations.

Today we found another interesting one: regex match time limit.

...mike

On Mon, Jan 21, 2013 at 1:43 PM, Steve Hanson <smh at uk.ibm.com> wrote:

> Just checking - did we close on this?
>
> Regards
>
> Steve Hanson
> Architect, Data Format Description Language (DFDL)
> Co-Chair, *OGF DFDL Working Group* <http://www.ogf.org/dfdl/>
> IBM SWG, Hursley, UK*
> **smh at uk.ibm.com* <smh at uk.ibm.com>
> tel:+44-1962-815848
> ----- Forwarded by Steve Hanson/UK/IBM on 21/01/2013 18:38 -----
>
> From:        Mike Beckerle <mbeckerle.dfdl at gmail.com>
> To:        Steve Hanson/UK/IBM at IBMGB,
> Cc:        dfdl-wg at ogf.org
> Date:        19/11/2012 21:08
> Subject:        Re: [DFDL-WG] proposed clarification/narrowing - no
> twos-complement decimal, integer or nonNegativeInteger
> ------------------------------
>
>
>
> Do we have a section where this goes?
>
> There are lots of implied implementation limits.
>
> Maximum string length?
> Maximum hexbinary length?
> Maximum number of packed digits in various numbers.
>
> Maximum length of a delimiter?
> Maximum length of a fixed attribute?
> Maximum length of a pattern regex expression?
> Maximum length of a regular expression?
>
> There's also limits on buffering of data for unparsing, etc.
>
> There's also limits on lookahead/speculation. I.e., how far an
> implementation is willing to speculate forward.
>
> etc.
>
> For some types these are clear: e.g., binary xs:int is 32 bits max.
>
> Do we need a numbered section on implementation specific limits.
>
> Unless stated otherwise above:
> IBM United Kingdom Limited - Registered in England and Wales with number
> 741598.
> Registered office: PO Box 41, North Harbour, Portsmouth, Hampshire PO6 3AU
>
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>



-- 
Mike Beckerle | OGF DFDL Workgroup Co-Chair | Tresys Technology |
www.tresys.com




-- 
Mike Beckerle | OGF DFDL Workgroup Co-Chair | Tresys Technology |
www.tresys.com
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