Is it possible to use nearley-unparse with Moo?

I’ve been trying to use Nearley to parse a list of problems but I’m having trouble getting nearley-unparse to correctly generate text matching Moo tokens. I posted a StackOverflow question to no avail so I thought it might be better suited for here. I’m using Nearley v2.11.0, Node v7.9.0 and NPM v4.2.0.

Everything is in the same Gist, but my grammar looks like this and the problems I’m trying to parse look like this.

After compiling the grammar however and using nearley-unparse however, I just end up with text that looks like this, with the Moo tokens missing.

Section  (Due )- #*, , 
Section  (Due )- #, *, 
Section  (Due )- #*, , , *, 
Section  (Due )- #*, *
Section (Due )- #*, *, *, *

Is this a limitation of Nearley or Moo? Or am I doing something wrong with my grammar?

[bumbaaz]

Hi, i just want to point out that it may be the case that nearley-unparse may not work even when the rules defined in moo do not involve regexes.

The following grammar, when compiled, only returns empty strings when unparsed

    @{%
        const moo = require('moo')
        let lexer = moo.compile({
    	word: ["hellothere"]
        });
    %}
    @lexer lexer
    result -> %word

While this works:

    result -> "hellothere"

[tjvr]

I haven’t tested the unparser with Moo myself. I suppose it’s plausible that it needs to be updated!

_{Sent with GitHawk}