33 lines
1018 B
Plaintext
33 lines
1018 B
Plaintext
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# OpenType Feature File specification, section 6.h.ii:
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# Specifying Contextual Positioning with explicit lookup references
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# http://www.adobe.com/devnet/opentype/afdko/topic_feature_file_syntax.html
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# As of December 2015, the Feature File spec gives a malformed example.
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# TODO: Once https://github.com/adobe-type-tools/afdko/issues/88 is fixed,
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# we should use the example from the spec. For now, we made up our own.
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languagesystem DFLT dflt;
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markClass [acute grave] <anchor 500 800> @TOP_MARKS;
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markClass macron <anchor 500 820> @TOP_MARKS;
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markClass [cedilla] <anchor 500 -5> @BOTTOM_MARKS;
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@ALL_MARKS = [@TOP_MARKS @BOTTOM_MARKS];
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lookup CNTXT_PAIR_POS {
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position T o -10;
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position T c -12;
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} CNTXT_PAIR_POS;
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lookup CNTXT_MARK_TO_BASE {
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position base [o c]
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<anchor 500 10> mark @TOP_MARKS
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<anchor 500 -10> mark @BOTTOM_MARKS;
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} CNTXT_MARK_TO_BASE;
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feature test {
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position
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T' lookup CNTXT_PAIR_POS
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[o c]'
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@ALL_MARKS' lookup CNTXT_MARK_TO_BASE;
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} test;
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