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Update readme.rst

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Fredrick Brennan 2020-08-15 16:21:16 -07:00 committed by GitHub
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Doc/source/designspaceLib/readme.rst
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@ -297,8 +297,7 @@ RuleDescriptor object
- Each condition is a dict with ``name``, ``minimum`` and ``maximum`` keys.
- ``subs``: list of substitutions
- Each substitution is stored as tuples of glyphnames, e.g. ("a", "a.alt").
- Note: By default, rules are applied *before* text shaping/OpenType layout. See
`5.0 rules element`_.
- Note: By default, rules are applied first, before other text shaping/OpenType layout, as they are part of the `Required Variation Alternates OpenType feature <https://docs.microsoft.com/en-us/typography/opentype/spec/features_pt#-tag-rvrn>`_. See `5.0 rules element`_ § Attributes.
Evaluating rules
----------------
@ -857,7 +856,8 @@ Attributes
----------
- ``processing``: flag, optional. Valid values are [``first``, ``last``]. This flag indicates whether the substitution rules should be applied before or after other glyph substitution features.
- If no ``processing`` attribute is given, interpret as ``first``.
- If no ``processing`` attribute is given, interpret as ``first``, and put the substitution rule in the `rvrn` feature.
- If ``processing`` is ``last``, put it in `rclt`.
.. 51-rule-element: