[mpeg-OTspec] Updated 4th edition working draft available for review

[Martin Hosken]

Dear Peter,

> Thanks, John. Given your reply, I think I'll drop the latter part of the last sentence.

That would be my preferred solution to this. After all, 'should' should make the rest of that sentence redundant :)

Yours,
Martin

> 
> 
> Peter
> 
> -----Original Message-----
> From: John Hudson [mailto:john at tiro.ca] 
> Sent: Wednesday, April 12, 2017 12:56 PM
> To: Peter Constable <petercon at microsoft.com>
> Cc: Martin Hosken <martin_hosken at sil.org>; Levantovsky, Vladimir <Vladimir.Levantovsky at monotype.com>; mpeg-OTspec at yahoogroups.com
> Subject: Re: [mpeg-OTspec] Updated 4th edition working draft available for review
> 
> Thanks, Peter. That's better in several respects.
> 
> Maybe the last sentence could say something like
> 
>      Applications should support use of a non-default language system table
>      that is associated with 'DFLT' script, although older applications may not
>      do so and might retain this behaviour.
> 
> I'd like to encourage everyone going forward to handle this in a consistent way, so not imply that this is something to opt out of.
> 
> JH
> 
> 
> PS. With regard to the note, I wonder if we might be able to actually define recommended behaviour — not in this part of the spec, but somewhere — for handling of script=Common characters in OpenType Layout, so that we can get some kind of predictability? It's an area in which there's incompatibility between shaping engine implementations, which is very frustrating. In general, we'd do better if there were a singe standard for run itemisation.
> 
> cf. My IUC39 presentation
> https://na01.safelinks.protection.outlook.com/?url=http%3A%2F%2Ftiro.com%2FJohn%2FHudson_IUC39_Beyond_Shaping.pdf&data=02%7C01%7Cpetercon%40microsoft.com%7C28a540d3e2b949576f4608d481dde7ed%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C1%7C636276237459641505&sdata=N6yePP0U%2FB266jw1F03CIy7%2BelT1f3leNYwMgJa7mZw%3D&reserved=0
> 
> 
> -- 
> 
> John Hudson
> Tiro Typeworks Ltd    https://na01.safelinks.protection.outlook.com/?url=www.tiro.com&data=02%7C01%7Cpetercon%40microsoft.com%7C28a540d3e2b949576f4608d481dde7ed%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C636276237459641505&sdata=bcRE6dTwJY2i5s%2FDfY6fwqyzcBLWdznNdU4j0GZ9PWE%3D&reserved=0
> Salish Sea, BC        tiro at tiro.com
> 
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>