Variable names in parentheses can't be accessed

[jarble]

Whenever I try to access a variable that is defined in a named expression, the output is undefined:

a = output:(a1:"parse" " " a2:"this") {return output.a1;}

When I parse the string "parse this" using this grammar, the parser returns "undefined" instead of "parse".

Is this due to a bug in the parser generator?

[hildjj]

This works as designed, for the moment You want this:

a = output:(a1:"parse" " " a2:"this" { return {a1, a2}}) {return output.a1;}

Or:

a = output:(@"parse" " "this") {return output}

If we add #302, your code will work.

(Sorry if there are typos, I'm mobile at the moment)

[hildjj]

I'm closing this as a dup of #302.

[reverofevil]

This issue is the best evidence of how much less value there is in backwards compatibility compared to usability. Users generally expect automatic return values to work. (And I remember I was surprised it didn't too!)

[hildjj]

Let's take discussion to #302, please. In particular, that's the place to argue for the no-@ syntax.