labeled plucked expression

[yukulele]

I'm not sure to understand the difference between plucked expression and labeled plucked expression.

example:

peggy.generate('Test = @$[a]+ " "* "/" " "* @$[z]+').parse('aaa / zzz') 
// => ['aaa', 'zzz']

peggy.generate('Test = @start:$[a]+ " "* "/" " "* @end:$[z]+').parse('aaa / zzz') 
// => ['aaa', 'zzz']

I expected to get something like { start: 'aaa', end: 'zzz' } but I probably misunderstood the purpose of the labels.

[hildjj]

The feature you're expecting is in #302. Right now, labeled plucked expressions are only useful for semantic predicates, as far as I know:

Test = @start:$[a]+ " "* "/" " "* @end:$[z]+' &{ return start.length < 1000 && end.length < 1000 }

[hildjj]

Going to close this as a dup of #302.

[hildjj]

#398 also adds a little more to the docs about labeled plucks.