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<div class="moz-cite-prefix">On 2/21/2023 1:19 AM, Jukka K. Korpela
via Unicode wrote:<br>
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<blockquote type="cite"
cite="mid:CAGHxYa6G0muJ6t6TqyNhtXYdxO=fKWULNPvZd=q_XZhAyYD__Q@mail.gmail.com">My
interpretation of this is that ZWJ should have no effect when it
does not appear between two graphic characters.</blockquote>
<p><font face="Candara">Not what I remember as the intent when we
introduced the character way back when. Clearly one of the
design features was to also support "didactic" formatting, that
is, bracketing a character with joiners or non-joiners to be
able to show positional forms in isolation.</font></p>
<p><font face="Candara">While later compromises forced the
acceptance of the compatibility forms, it was never anticipated
that there would be a use case for them that couldn't be
realized with standard characters.</font></p>
<p><font face="Candara">I see where you might come to your
interpretation of the text as written, but the cases where you
might reasonably need adjacent characters to be able to get the
requested effect would be more for things like ligatures where
it doesn't make sense to display a single character "as it would
appear in a ligature" because, unlike positional forms, that
concept is not well defined.</font></p>
<p><font face="Candara">(I don't know to what degree in actual
layout the positional forms themselves are dependent on knowing
the adjacent character, and whether that makes it less
straightforward to display a "nominal" positional form, as in a
generic "medial ain").</font></p>
<p><font face="Candara">A./</font><br>
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