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I'm developing an Arabic font.
I want to achieve a substitution like the one shown in the attached image.
I want "be" to change to "be.alt" when it is before "noon", then I want to change the "noon" to change to "noon.alt" when it comes after "be.alt".
I know that this has something to do with Contextual Substitution.
My question is how to write the lookups, and in which order the lookups should be placed?
Thanks and regards.
|contextual substitution.jpg||602.99 KB|