<div dir="ltr">Right.  What Khaled said.<br></div><div class="gmail_extra"><br><div class="gmail_quote">On Sat, Nov 11, 2017 at 12:25 PM, Khaled Hosny <span dir="ltr"><<a href="mailto:khaledhosny@eglug.org" target="_blank">khaledhosny@eglug.org</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><span class="">On Sat, Nov 11, 2017 at 08:39:09AM +0700, Martin Hosken wrote:<br>
> Dear Behdad,<br>
><br>
> Please could you explain the purpose and function of<br>
> HB_GLYPH_FLAG_UNSAFE_TO_BREAK. Is this about line breaking? grapheme<br>
> clustering?<br>
<br>
</span>It is about shaping after line breaking. IIUC, unsafe to break means you must<br>
reshape if you break here (up to the next/previous safe to break point),<br>
but actual break points have to be identified by the client as usual.<br>
<br>
IMHO, that is an optimization for the clients that want to do the right<br>
thing after breaking but don’t want to re-shape text needlessly.<br>
<br>
Regards,<br>
Khaled<br>
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</div></div></blockquote></div><br><br clear="all"><br>-- <br><div class="gmail_signature" data-smartmail="gmail_signature">behdad<br><a href="http://behdad.org/" target="_blank">http://behdad.org/</a></div>
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