Chaining Context Substitutions

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Bhikkhu Pesala
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Chaining Context Substitutions

Postby Bhikkhu Pesala » Fri May 13, 2016 10:32 am

I guess this is a victory for the Visual OpenType Layout Feature Editor, as I don't really understand how to do this using code. What I wanted was for the lowercase r to be substituted with stylistic set 1 (ss01) after G and Y (and accented versions of these), but with stylistic set 2 after P and Q (and accented versions of these).

I created classes for PQ and GY (with the accented versions), and then added Contextual Alternates (calt) with chained context substitutions. The visual feedback on the Layout Feature Editor helped me to find a solution that worked by trial and error. I would not be surprised to learn that there's a better solution, but this does what I wanted without too much work.

Chaining Contexts.png
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Erwin Denissen
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Re: Chaining Context Substitutions

Postby Erwin Denissen » Fri May 13, 2016 11:22 am

And visually designing such features can be fun; especially when the expected results come alive!
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Bhikkhu Pesala
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Joined: Tue Oct 29, 2002 5:28 am
Location: Seven Kings, London UK
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Re: Chaining Context Substitutions

Postby Bhikkhu Pesala » Fri May 13, 2016 12:20 pm

The Comparison Toolbar helped me to decide which other Capitals to add to each class and the Preview Toolbar shows how the full alphabet looks, each glyph followed by the appropriate alternate lowercase r.

Preview Toolbar.png
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