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<body><span class="vcard"><a class="email" href="mailto:shanshandehongxing@outlook.com" title="Volga <shanshandehongxing@outlook.com>"> <span class="fn">Volga</span></a>
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<a class="bz_bug_link
bz_status_NEW "
title="NEW - ZWJ shouldn't be treated as breaking character"
href="https://bugs.documentfoundation.org/show_bug.cgi?id=114160">bug 114160</a>
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<th>What</th>
<th>Removed</th>
<th>Added</th>
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<td style="text-align:right;">Blocks</td>
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<td>103729
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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - ZWJ shouldn't be treated as breaking character"
href="https://bugs.documentfoundation.org/show_bug.cgi?id=114160#c15">Comment # 15</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - ZWJ shouldn't be treated as breaking character"
href="https://bugs.documentfoundation.org/show_bug.cgi?id=114160">bug 114160</a>
from <span class="vcard"><a class="email" href="mailto:shanshandehongxing@outlook.com" title="Volga <shanshandehongxing@outlook.com>"> <span class="fn">Volga</span></a>
</span></b>
<pre>(In reply to Eyal Rozenberg from <a href="show_bug.cgi?id=114160#c13">comment #13</a>)
<span class="quote">> Even though I haven't managed to get the Sample ODT to display the intended
> glyphs, this bug still manifests - assuming that the gray lines between
> characters are ZWJ's. Tested with:
>
> Version: 6.1.1.2
> Build ID: 5d19a1bfa650b796764388cd8b33a5af1f5baa1b
> CPU threads: 4; OS: Linux 4.15; UI render: default; VCL: gtk2;
> Locale: en-GB (en_GB.UTF-8); Calc: group threaded</span >
This file is using Abkai Xanyan fonts to render the text, you can get the fonts
from here before you reproduce with sample ODT:
<a href="http://abkai.net/core/en/manchu/manchu-fonts/">http://abkai.net/core/en/manchu/manchu-fonts/</a>
(In reply to ssmithg1 from <a href="show_bug.cgi?id=114160#c14">comment #14</a>)
<span class="quote">> In response to <a href="show_bug.cgi?id=114160#c11">Comment 11</a>, this worked fine in LO 5.2.7.2 but is broken in
> 5.3.2.2, so the culprit is somewhere between those two versions, in case
> that helps.
>
> I should say that this is a serious issue for Indic scripts (eg, Devanagari
> etc). In these scripts, ZWJ is used following a halant (virama) between two
> consonants, to block the formation of a conjunct form. In Devanagari this
> generally results in a half-form of the 1st consonant. [See the section
> "Explicit Half-Consonants" in chapter 12 of the Unicode Standard.] Breaking
> the line there leaves a half-character at the end of the line, which is
> invalid. So until this is fixed we have to revert to LO 5.2.7.2 or use
> another editor.</span >
So it seems to me that LibreOffice have something missing, or some specific
Unicode properties doesn’t properly handled after new text layout backend is
introduced in 5.3.</pre>
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<div id="referenced">
<hr style="border: 1px dashed #969696">
<b>Referenced Bugs:</b>
<ul>
<li>
[<a class="bz_bug_link
bz_status_NEW "
title="NEW - [META] HarfBuzz-based common text layout regressions"
href="https://bugs.documentfoundation.org/show_bug.cgi?id=103729">Bug 103729</a>] [META] HarfBuzz-based common text layout regressions
</li>
</ul>
</div>
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