From: Lars Magne Ingebrigtsen <larsi@gnus.org>
To: emacs-devel@gnu.org
Subject: Re: mapping data formats imported from C libraries
Date: Wed, 26 Nov 2014 16:56:15 +0100 [thread overview]
Message-ID: <m3r3wqvtuo.fsf@stories.gnus.org> (raw)
In-Reply-To: <87r3wqazjb.fsf@lifelogs.com> (Ted Zlatanov's message of "Wed, 26 Nov 2014 07:59:04 -0500")
Ted Zlatanov <tzz@lifelogs.com> writes:
> Yeah, I've seen the mess that libxml2 and json.el produce (not the
> coder's fault, it's just a pain to adapt without native types). It
> doesn't help that XML/SGML and Lisp are inbred cousins :)
>
> * it's a pain to distinguish JSON's `false' and `null' while using them
> in code
Well, I don't think that's a DOM point.
> * in json.el you pick the key-value storage method! yay!
>
> * in json.el you pick the array storage method! yay!
>
> * JSON data is not a tree
Sure it is.
{"a": {"b": [1, 2], "c": 4}}
> My ideal mapping from libjson and libyaml would be:
>
> * unambiguous: you can reconstruct a canonical version of the input
> stream from the parse data, as much as possible (JSON is better at this)
Trivial from the Emacs DOM.
> * native: you can iterate over JSON arrays as Lisp lists, and JSON
> key-value mappings as alists. JSON's `false' and `null' are both
> false in Lisp boolean context.
Outside the scope of the DOM.
> * clean: no extra cons cells for attributes
Doesn't matter. :-)
> * readable: this is huge IMO, to be able to pretty-print the data and
> quickly see what it contains... one of the things I like about JSON
> vs. SGML/XML.
`pp' prints the DOM real purdy like. I've web scraped bunches and
bunches of pages, and reading the DOM in the *scratch* buffer is really
easy.
--
(domestic pets only, the antidote for overdose, milk.)
bloggy blog: http://lars.ingebrigtsen.no
next prev parent reply other threads:[~2014-11-26 15:56 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-11-23 15:18 DOM manipulation functions Lars Magne Ingebrigtsen
2014-11-23 15:58 ` joakim
2014-11-23 15:59 ` Rüdiger Sonderfeld
2014-11-23 16:01 ` Lars Magne Ingebrigtsen
2014-11-23 16:52 ` Steinar Bang
2014-11-24 0:26 ` Leo Liu
2014-11-25 9:12 ` mapping data formats imported from C libraries (was: DOM manipulation functions) Ted Zlatanov
2014-11-25 15:54 ` mapping data formats imported from C libraries Lars Magne Ingebrigtsen
2014-11-25 16:27 ` Ted Zlatanov
2014-11-25 16:32 ` Lars Magne Ingebrigtsen
2014-11-25 16:40 ` Ted Zlatanov
2014-11-25 17:06 ` Lars Magne Ingebrigtsen
2014-11-26 10:41 ` Steinar Bang
2014-11-26 15:51 ` Lars Magne Ingebrigtsen
2014-11-26 19:57 ` Steinar Bang
2014-11-26 20:00 ` Lars Magne Ingebrigtsen
2014-11-26 12:59 ` Ted Zlatanov
2014-11-26 15:56 ` Lars Magne Ingebrigtsen [this message]
2014-11-26 16:48 ` Ted Zlatanov
2014-11-23 18:45 ` DOM manipulation functions raman
2014-11-25 11:01 ` Nicolas Richard
2014-11-26 18:44 ` Lars Magne Ingebrigtsen
2014-11-26 19:42 ` Ted Zlatanov
2014-11-26 19:44 ` Lars Magne Ingebrigtsen
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