Re: [Caml-list] ANN: angstrom

["Daniel Bünzli" <daniel.buenzli@erratique.ch>]

Looks cool.

Le vendredi, 22 juillet 2016 à 15:35, Spiros Eliopoulos a écrit :  
> For a high-level comparison of Angstrom's features to other parser-combinator libraries, see the table included in the README:
>  
> https://github.com/inhabitedtype/angstrom#comparison-to-other-libraries
Do you have a story for precise line-column and byte count tracking ? It's quite important in practice to be able to give good error reports.  

Also does the API easily allow to do best-effort decoding (after reporting an error allow to resync input by discarding and restart the parsing process) ?  
  
> Yojson wins hands down (it benefits greatly from not having to support non-blocking incremental input),

I guess it also benefits of not implementing the standard at all, e.g. it won't check the validity of the underlying character stream.  

Also regarding benchmarks it would be more interesting to have benchmarks on real world examples where you convert json input to concrete ocaml data types. E.g. it would be cool if you could provide a jsonm-like streaming interface with angstrom and then use angstrom's combinators to parse the stream of json lexeme into OCaml data structures.

Best,  

Daniel