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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">I like the proposed approach, mostly for the reasons that were already pointed out in earlier responses:<o:p></o:p></span></p>
<p class="MsoListParagraph" style="text-indent:-.25in;mso-list:l0 level1 lfo1"><![if !supportLists]><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><span style="mso-list:Ignore">-<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">It makes it easy to parse the tags and separate out a small number of currently conflicting tags that require this numerical prefix. The majority
of existing tags are already compliant with ISO tags and those that will be added in the future will be made compliant with ISO 639.
<o:p></o:p></span></p>
<p class="MsoListParagraph" style="text-indent:-.25in;mso-list:l0 level1 lfo1"><![if !supportLists]><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><span style="mso-list:Ignore">-<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">This scheme doesn’t require changes anywhere else in the spec – the new and old tags can coexist with each other and with currently defined table
formats.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">So, the question is – how important is to make language tags and their variants sort together well (as Andrew mentioned in his other email)? Maybe just a quick
straw pool would help to answer the question:<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">For those tags that are currently in conflict with the ISO language codes (as e.g. “Kabardian” that uses ‘KAB’ tag assigned for “Kabyle” by ISO 639) – do you
prefer to have a newly defined “Kabyle” tag easily parsed and therefore defined as ‘6KAB’ or be easily sorted and therefore, defined as ‘KAB0’?<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Thank you,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Vlad<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> mpeg-OTspec@yahoogroups.com [mailto:mpeg-OTspec@yahoogroups.com]
<b>On Behalf Of </b>Andrew Glass (WINDOWS)<br>
<b>Sent:</b> Tuesday, February 26, 2013 2:51 PM<br>
<b>To:</b> Bob Hallissy; OTspec (mpeg-OTspec@yahoogroups.com); Levantovsky, Vladimir<br>
<b>Subject:</b> RE: [mpeg-OTspec] Conflicts between language system tags<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Thank you for raising this issue Vlad.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Following a discussion with Peter, we’d like to propose using an marker (perhaps “6” for ISO
<u>6</u>39-3) in the language system tag to identify new codes that are based on ISO 639-3. The rest of the tag would be the upper-cased ISO tag, per Bob’s mail.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><b><span lang="EN-GB" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">What should the marker be?<o:p></o:p></span></b></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"> The value of the marker is arbitrary. Using a number would make it clear which portion of the language tag is taken from ISO 639-3.
The suggestion is to use 6 since this is the first digit of the number of the standard. 3 might be another option.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><b><span lang="EN-GB" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Should the marker be used on all future tags, or just those that have a conflict with an existing tag?<o:p></o:p></span></b></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"> The tag is only really necessary in order to resolve a conflict with an existing tag. Most current ISO 639-3 codes could be safely
brought into the current OTSpec without conflict. Therefore, including the marker everywhere is unnecessary. However, by using the marker generically the OTSpec itself need not be updated every time a language is needed. Rather, the full set of ISO 639-3 language
codes would become available by the introduction of the marker.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><b><span lang="EN-GB" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Should the marker come at the beginning or end of the tag, 6KAB or KAB6?<o:p></o:p></span></b></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"> If the marker is used at the beginning, then it is easier to parse forwards, so the next three bytes are an ISO 639-3 code. If
the marker is at the end of the tag, then they will interleave with the existing OT Language tags when sorted.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Andrew<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:11.0pt;font-family:"Calibri","sans-serif"">From:</span></b><span style="font-size:11.0pt;font-family:"Calibri","sans-serif"">
<a href="mailto:mpeg-OTspec@yahoogroups.com">mpeg-OTspec@yahoogroups.com</a> [<a href="mailto:mpeg-OTspec@yahoogroups.com">mailto:mpeg-OTspec@yahoogroups.com</a>]
<b>On Behalf Of </b>Bob Hallissy<br>
<b>Sent:</b> 25 February 2013 10:46<br>
<b>To:</b> OTspec (<a href="mailto:mpeg-OTspec@yahoogroups.com">mpeg-OTspec@yahoogroups.com</a>)<br>
<b>Subject:</b> Re: [mpeg-OTspec] Conflicts between language system tags<o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB"> <o:p></o:p></span></p>
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<p style="margin-bottom:12.0pt"><span lang="EN-GB">Is it an option to freeze the existing language tags and then to bump
<br>
the GSUB/GPOS table version and declare that in the new version all tags <br>
are, for example, ISO 639-3 (maybe the upper-case thereof) ?<br>
<br>
Bob<br>
<br>
On 2013-02-25 at 11:35 Levantovsky, Vladimir wrote:<br>
> I am afraid that in the future, as we attempt to add more languages <br>
> supported by the OT/OFF standard we may see this situation repeated <br>
> when some of the tags already in use may conflict with the new tags <br>
> defined according to ISO 639 standard. Therefore, I would suggest that <br>
> we need to come up with a solution that would allow us reconcile the <br>
> differences between OT language system tags and ISO 639 language tags. <br>
> It is clear that for all newly defined languages new system tags <br>
> should be based on ISO 639 tag; however, we need to find a systematic <br>
> way that would allow us to resolve the existing and, potentially, <br>
> future conflicts.<o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-GB" style="color:white"><o:p> </o:p></span></p>
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