Re: [Pharo-users] How to write out simple Json?

March 1, 2019

      What's missing is a "map" syntax. :)

#{
  'track' -> 'pharo'.
  'language' -> 'smalltalk'.
  'exercises' -> #{
     'slug' -> 'hello'.
     'id' -> 55.
     'topics' -> #('a' 'b' 'c') }
}

The #{ } would be a mix of the existing { } construct, but somehow
enforcing that elements return "association like" (#key and #value)
and sends #asDictionary to the resulting collection.

I cannot think of anything shorter than that except for what I use and
was already suggested:

ex := {
  #track->#pharo.
  #language->#smalltalk.
  #exercises->{
    #slug->'hello'.
    #id->55.
    #topics->#('a' 'b' 'c') } asDictionary } asDictionary.

Regards,

Esteban A. Maringolo

El vie., 1 mar. 2019 a las 9:08, Sven Van Caekenberghe
(<sven@stfx.eu>) escribiÃ³:
...
...
On 1 Mar 2019, at 12:32, Tim Mackinnon <tim@testit.works> wrote:
...
On 1 Mar 2019, at 10:35, Sven Van Caekenberghe <sven@stfx.eu> wrote:
Forget about the way you are trying to implement it, to what would
{ #key->#value. 1. true }
be rendered in JSON ?
{ "key":"value", 1, true }
or
[ "key":"value", 1, true ]
Both are illegal JSON.
You didnât read what I said - with those 2 tiny changes - both of those given an exception just like STONJSON - the only difference is that I donât have to put asDictionary everywhere.
Anyway - I think Iâve learned a lot from this discussion - and as Pharo is malleable I can do my little nasty subclass until I get burned and then I will probably adopt a proper Config object like Henrik mentioned ;)
Yes you can !
...
Just as a small additional question - when you do :
ex := {
 #track->#pharo.
 #language->#smalltalk.
 #exercises->{
   #slug->'hello'.
   #id->55.
   #topics->#('a' 'b' 'c') } asDictionary } asDictionary.
Am I right in thinking that with asDictionary the order wonât be deterministic (which is valid for JSON dictionaries, but annoying for diffing config files). This is why I was doing asOrderedDictionary as I though I had seen it change on me a few times when I was generating output.
Right, #asDictionary or #asOrderedDictionary both work, it is up to you.
But, like you said, there is no order in JSON, although it can help in diffing.
...
Tim

Re: [Pharo-users] How to write out simple Json?

Esteban Maringolo