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<div>I think that's true for all 4 characters. I don't think we can disallow them.</div>
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<div>Note that ZWJ/ZWNJ can be used in a link in IDNA2003, but they're mapped to nothing, so the address bar will likely look funny, though you can still get to a server. I'm not saying that's good behavior, but I suppose it's better than nothing. I'm also
not trying to suggest it doesn't need fixed, it is clearly a big display problem that should be addresses as soon as practical.</div>
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<div>-Shawn</div>
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<div style="DIRECTION: ltr" id="divRpF592164"><font color="#000000" size="2" face="Tahoma"><b>From:</b> idna-update-bounces@alvestrand.no [idna-update-bounces@alvestrand.no] on behalf of Sarmad Hussain [sarmad.hussain@nu.edu.pk]<br>
<b>Sent:</b> Friday, December 04, 2009 7:50 PM<br>
<b>To:</b> idna-update@alvestrand.no<br>
<b>Cc:</b> idna-arabicscript@lists.irnic.ir<br>
<b>Subject:</b> Re: Idna-update Digest, Vol 36, Issue 48<br>
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<div>> 200C ; DISALLOWED # ZERO WIDTH NON-JOINER<br>
> 200D ; DISALLOWED # ZERO WIDTH JOINER<br>
><br>
> There is no new value called TRANSITIONAL. The infamous 4 characters<br>
> (above) start with the value DISALLOWED. Later, we change them to<br>
> PVALID (or CONTEXTJ for 200C/200D). <br>
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<div>Before reverting to IDNA2003 level lack of support for these characters, do re-consider why the status of these characters (ZWNJ and ZWJ) have been changed in Idnabis process: these characters are required for writing IDNs for a billion people in South
Asia and beyond.</div>
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<div>Having them as DISALLOWED and called TRANSITIONAL will only propagate older decisions, not fix them. Having them as CONTEXTJ is already a workable solution, where they are only (carefully) allowed, where they are needed. </div>
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<div>regards,<br>
Sarmad </div>
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