Could not encode tables

[simoncozens]

I'm getting this with any input:

thread 'main' panicked at 'Could not encode tables: TagNotInFeatureList("LangSys.features", FeatureTag("ccmp"))',

Here's the client code:

        let res = otf_fea_rs::parser::parse_file(
            File::open(feature_path).expect("Couldn't open feature file"),
        )
        .expect("Couldn't parse feature file");
        let glyphorder = name_to_id
            .iter()
            .map(|(name, id)| (*id as u16, GlyphRef::from_name(name)))
            .collect_into_glyph_order()
            .unwrap();
        let compiled = compiler::compile(glyphorder, &res).expect("Could not compile features");
        let tables = compiled.encode_tables().expect("Could not encode tables");

[simoncozens]

Note that this also happens with the example script compile.rs:

simon@Simons-iMac ~/others-repos/otf-fea-rs *$ echo 'feature liga { sub f i by f
_i; } liga;' > foo.fea
simon@Simons-iMac ~/others-repos/otf-fea-rs *$ ./target/debug/compile foo.fea IBMPlexSans-Regular.ttf

parsing...
    parsed successfully!

compiling...
feature liga:
    compiled successfully!

thread 'main' panicked at 'called `Result::unwrap()` on an `Err` value: TagNotInFeatureList("LangSys.features", FeatureTag("liga"))', src/bin/compile.rs:89:47
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace

[simoncozens]

Oh, I think I get this now. I've been unlucky because I have tried examples which have ligature substitutions and single substitutions, neither of which this currently supports. So this is just incompleteness rather than incorrectness.