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<div class="moz-cite-prefix">On 4/26/2024 4:00 PM, William_J_G
Overington via Unicode wrote:<br>
</div>
<blockquote type="cite"
cite="mid:49c13a7.4aab.18f1ca37cd2.Webtop.101@btinternet.com">
<p><span style="font-family:Arial;font-size:18.0px;">May I ask
please, Is it valid to use a sequence of tag characters ending
in a cancel tag in a private use encoding of characters if the
base character of the sequence is a Private Use Area
character?</span></p>
</blockquote>
<p>Of course. Just do not expect to be able to interchange your
intent reliably, unless you get widespread public agreement about
your use both of the PUA characters and your conventions for use
of the tag characters. Otherwise, it is likely the person you
communicate with will just see: <b>□□□□□□□□□□□□□□□</b><br>
</p>
<p>As an example, I would be perfectly within my rights to try to
convey today's date, April 26, 2024 with the following Unicode
string:</p>
<p>òóòòòòòòò òòòòòòòòò òóòòòòòòò òòòóòòòòò òòòòòòòòò òòòóòòòòò
òòóòòòòòò òòòòòóòòò <br>
</p>
<p>Perfectly conformant to the Unicode Standard. However, I expect
that I would have difficulty convincing other people to use that
convention to interchange dates, instead of the string "April 26,
2024" or "2024-04-26" or some similar, already established
convention for the formatting of dates. On the bright side, at
least they wouldn't be seeing a string of uninterpretable
character boxes. ;-)<br>
</p>
<p>--Ken<br>
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