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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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docs/usermanual-buffers-language-script-and-direction.xml
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@ -136,10 +136,12 @@
determine which glyph to return. determine which glyph to return.
</para> </para>
<para> <para>
The safest approach is to add all of the text available, then The safest approach is to add all of the text available (even
use <parameter>item_offset</parameter> and 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 <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>
<para> <para>
You can also add Unicode code points directly with You can also add Unicode code points directly with