Re: New JSON library from the maker of Beast!

From: Phil Endecott (spam_from_boost_dev_at_[hidden])
Date: 2019-09-23 15:16:58

Hi Vinnie,

Vinnie Falco wrote:
> I've been working on a massively-multiplayer online blackjack casino
> server, called Beast Lounge [1]. The server and client communicate
> using JSON-RPC over WebSocket. I have developed a brand-new JSON
> library for this project, in accordance with the following design
> goals:

I am reminded of the various discussions of alternative styles of
XML parsers that have happened on this list over the years.  People
have a surprising variety of often-conflicting requirements or
preferences.  I think it's unlikely that any one solution will suit
everyone - but maybe there are common bits of functionality that
can be shared?

My preference has always been for parsing by memory-mapping the entire
file, or equivalently reading the entire document into memory as a blob
of text, and then providing iterators that advance through the text
looking for the next element, attribute, character etc.  I think one of
the first XML parsers to work this way was RapidXML.  Their aim was to
get the parsing speed as close to strlen() as possible and they did
pretty well.  Others have mentioned some benchmarks and I encourage
you to try them - and/or at least be clear about whether performance is
a design goal.

Regards, Phil.