Re: [UAFDKOML] Replace letters in OT features ...

[Cosimo Lupo]

what about you make two classes and you substitute one by the other?

feature calt {

  sub r [n napostrophe ntilde ...]' by [n.ss01 napostrophe.ss01 ntilde.ss01 ...];

} calt;

On 2 February 2016 at 16:39, Morten <rostgaar...@gmail.com> wrote:

feature calt {

  sub r n' by n.ss01;

} calt;

--

Cosimo Lupo
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[Cosimo Lupo]

forget what I just written.

You need to define two classes for the regular and alternate n, define a standalone lookup that swaps one with the other, and reference that named lookup in contextual substitution.

Something like this:

@regular_n = [n napostrophe ntilde];

@alternate_n = [n.ss01 napostrophe.ss01 ntilde.ss01];

lookup substitute_n {

    sub @regular_n by @alternate_n;

} substitute_n;

feature calt {

    sub r @regular_n' lookup substitute_n;

} calt;

Cheers,

[Morten]

Great, thanks!

But something do not work:

Missing glyph: napostrophe.ss01

Missing glyph: ntilde.ss01

[FATAL] invalid token (text was " ")!

I think I have to create a lot of alternate n-glyphs in this case. I have hoped, that I could work with just one new 'n' (the alternate one), 

and 'just' add the accent, e.g. the 'tilde', in a script. Is that possible? 

Best,

Morten

[Cosimo Lupo]

yes, if...

- you use first decompose ntilde, etc. into n + tildecmb, etc. (this is usually the job of the 'ccmp' feature);

- you place anchors on both the accents and base glyphs and have a 'mark' feature that positions them accordingly

good luck

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[Morten]

Uupps, looks very complex ... Thanks a lot for your assistance!