Re: [json] Re: Comments
- I'll jump in here and say that even a draconian syntax like XML
(arguably the most used data stream format on the planet) supports
The whole point of something like comments is that it's an open-ended
proposition. Anyone designing a computer language (or data construct)
who allows comments is essentially saying "here you are, do with them
as you will, but observe these rules if you want your comments to not
break the parser".
I have no immediate plans to use comments in my JSON, but you never
know. I have put them in my XML documents, especially during testing
or creating example bits of data for others to play with.
Considering that the eval() method currently supports at least /* */
comments, and the fact that the safe version now uses a filter regex
on top of eval(), I'd sure like to understand why even edge cases
like sample files wouldn't warrant an extra handful of characters in
"You like Chinese food." -- Actual fortune cookie I received once.
- Funny thing is, YAML was designed for human consumption as much as a
more in the LISP camp than the C camp , i.e., designed for expressive
power rather than bit-munging.
Programmers spend half their time looking at code. Ergonomics matter.
If line speed is a premium, why allow insignificant whitespace at all?
If line speed was a premium (and human consumption irrelevant), I'd be
using ASN.1 anyway; it is well established in the telecom world, and
there are tons of software and utilities that will help you with the
Think of comments as something that belong to a separate namespace. The
JSON parser should have no other business with comments than ignoring
them. If ECMAScript syntax for comments is too loose for easy parsing,
The alternative is an informal standard for comment properties that in
effect turns me into a carbon-based compiler and requires applications
to share a notation for comments anyway.
Atif Aziz wrote:
>>I think the real crux...
> As I said, I have a sneaking hunch that the real issue stems from tying
> JSON to YAML. With the comments debate generating some traffic, I feel
> less daring at this point to open up the disappearing of single-quoted
> strings gone as well as unquoted member names (at least on the decoding
> end). I am hoping Douglas will provide some insight so everyone can
> build a better understanding of the decisions that lead to several
> cutbacks in the specs. I think focusing the discussion too much on
> comments is really just avoiding a more fundamental issue. Does anyone
> agree or am I just rambling here?
> -----Original Message-----
> From: email@example.com [mailto:firstname.lastname@example.org] On Behalf Of
> Sent: Tuesday, January 03, 2006 8:03 PM
> To: email@example.com
> Subject: Re: [json] Re: Comments
> I think the real crux of this is simply, you cannot create a json
> format string through encoding from existing data that would contain
> comments (IIRC). It is only from people creating a json format string
> by hand.
> It is a fairly weak argument that the standard should support
> something that is not going to be used by the majority of people and
> probably not in production, from an early version of the standard,
> especially given that there are other ways get the same information
> across using the current standard.
> If you want to block out sections of json for ease of testing, then
> comment out the properties of the objects you are encoding, not /**/
> in some hand edited string.
> If you want to include comments about an object, include it in a
> property of the object.
> If you feel a need to include very detailed breakdowns, write a spec
> for the object your passing, it shouldn't be in the data stream.
> Your suggestion on wording is really avoiding the issue of why it
> should remain when there are other workable alternatives, and
> suggesting that it remain part of the standard just because it was
> once thought to be useful.
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