[IPP] Duplicate media sizes in registry...

[IPP] Duplicate media sizes in registry...

Kennedy, Smith (Wireless & IPP Standards) smith.kennedy at hp.com
Wed Oct 19 15:06:34 UTC 2022



> On Oct 19, 2022, at 8:37 AM, Michael Sweet via ipp <ipp at pwg.org> wrote:
> 
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> All,
> 
> Zdenek Dohnal (Red Hat) and Benjamin Gordon (Google) have been updating CUPS to support newer registered media size names from the IANA IPP registry.  During the review process we discovered that several duplicate sizes have been registered:
> 
>  iso_id-3_88x125mm vs. iso_b7_88x125mm (registered by Canon in 2018)
>  om_postfix_114x229mm vs. iso_c6c5_114x229mm (both defined in 5101.1!)
>  prc_3_125x176mm vs. iso_b6_125x176mm (both defined in 5101.1!)
>  prc_5_110x220mm vs. iso_dl_110x220mm (both defined in 5101.1!)
>  prc_10_324x458mm vs. iso_c3_324x458mm (both defined in 5101.1!)
> 
> I propose that I remove the first form from the registry in favor of the second to favor ISO paper sizes over national/special purpose sizes.
> 
> Thoughts?

Concur. 😊 Didn't you write a tool that makes sure that new media sizes aren't duplicates of existing media sizes? If so, maybe we need to run it on the IANA registry?
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