Labelled Matches

[jtmoulia]

neotoma has a neat facility for labelling matches:

string <- '"' chars:(!'"' ("\\\\" / '\\"' / .))* '"'

It then labels the match using a tuple, for example {:chars, ...}. This is awesome when there is a sequence of matches since it turns it into a keyword list. Even if only some elements are labelled, e.g. [{:chars, "1"}, "2] the keyword functions still work.

This serves a similar purpose as #4, throwaway matches.