<div dir="ltr"><blockquote style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;" class="gmail_quote">I just found that when a zero-width non-joiner is placed between two<br></blockquote>
<blockquote style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;" class="gmail_quote">Arabic letters, kerning rules are not applied. This strikes me as a<br></blockquote><blockquote style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;" class="gmail_quote">
bit odd, because in some languages (like Persian) a ZWNJ is used to<br></blockquote><blockquote style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;" class="gmail_quote">force a final form, i.e., to indicate a morpheme break. It's<br>
</blockquote><blockquote style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;" class="gmail_quote">conceivable that a following glyph would be an isolated form. In that<br></blockquote>
<blockquote style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;" class="gmail_quote">case, you might need kerning to make the [final]-[isolated] sequence<br></blockquote><blockquote style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;" class="gmail_quote">
look better. Is there a way to produce this? (And alternative to ZWNJ<br></blockquote><blockquote style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;" class="gmail_quote">perhaps?)<br>
</blockquote><pre><br><br><br>No, I am Persian myself and that is not true. If the rule were to be visible between ZWNJ, then it would look absolutely ugly. Imagine the usual word میروم would look like می|روم. Actually if XeTeX does that, then it will become a XeTeX bug,<br>
that rule should be invisible (inserted but invisible). If I recall correctly it was visible in the past which clearly was a bug and Jonathan fixed it. That discussion can be fount at <a href="http://tug.org/mailman/htdig/xetex/2008-April/009520.html">http://tug.org/mailman/htdig/xetex/2008-April/009520.html</a><br>
</pre>-- <br>Vafa<br>
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