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Merge pull request #2733 from astiob/buffer-context-doc 

[docs] Describe buffer context applicability more explicitly
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Khaled Hosny 2020-10-24 22:37:52 +02:00 committed by GitHub
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8
docs/usermanual-buffers-language-script-and-direction.xml
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@ -136,10 +136,12 @@
determine which glyph to return.
</para>
<para>
The safest approach is to add all of the text available, then
use <parameter>item_offset</parameter> and
The safest approach is to add all of the text available (even
if your text contains a mix of scripts, directions, languages
and fonts), then use <parameter>item_offset</parameter> and
<parameter>item_length</parameter> to indicate which characters you
want shaped, so that HarfBuzz has access to any context.
want shaped (which must all have the same script, direction,
language and font), so that HarfBuzz has access to any context.
</para>
<para>
You can also add Unicode code points directly with