Re: YAML 1.2/1.* vs YAML 2.0

On Thu, Mar 3, 2016 at 12:42 PM, Britton Kerin <[email protected]> wrote:
> On Wed, Mar 2, 2016 at 3:43 PM, Peter Murphy <[email protected]> wrote:
>> All,
>>
>> Composite keys should stay, because they are found to be useful by
>> multiple people. Good software development is done for the benefit of
>> the users, not for the benefit of the programmers.
>>
>> The only reason they are even considered being removed is that
>> composite keys offend someone's aesthetic principles. That's not a
>> good reason.
>
> I'd suggest not killing each other over this argument.  What would be
> useful to me and I guess most outsiders eyeballing YAML, is if it
> worked like JSON but with less superflous " garbage and the nice block
> array and hash support.  There's even one JSON parser/emitter out
> there that departs from standard just to allow optional quotes for key
> names.
>

As I observe, the problems that people have is with the multiplicity
of ways to present the same information, and the issues some of those
ways have. For example, folded block scalars:

https://github.com/yaml/YAML2/wiki/Folded-Block-Scalars

Fortunately, there are other ways to represent the same information
(double quote scalars), so the removal of folding block scalars
shouldn't be a problem.

The removal of composite keys requires a change to the YAML _content
model_, on the other hand, and so it becomes impossible to represent
the same thing that used to be representable in YAML.   So for
example, this fragment from the PyYAML documentation:

http://pyyaml.org/wiki/PyYAMLDocumentation

# YAML
? !!python/tuple [0,0]
: The Hero
? !!python/tuple [0,1]
: Treasure
? !!python/tuple [1,0]
: Treasure
? !!python/tuple [1,1]
: The Dragon

Cannot be presented any longer.

Best regards,
Peter

------------------------------------------------------------------------------
Site24x7 APM Insight: Get Deep Visibility into Application Performance
APM + Mobile APM + RUM: Monitor 3 App instances at just $35/Month
Monitor end-to-end web transactions and take corrective actions now
Troubleshoot faster and improve end-user experience. Signup Now!
http://pubads.g.doubleclick.net/gampad/clk?id=272487151&iu=/4140