April 2011 - cl-json-devel - mailman3.common-lisp.net

[cl-json-devel] jsonp
by Haris 13 Apr '11

13 Apr '11

Hi. Can someone give me an example of using jsonp ? For example, I have a lisp function: (defun add (x y) (+ x y)) and I want to call it from javascript: add (2, 2); How do I do that ? Thanks

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Re: [cl-json-devel] Newbie to Lisp question, trying to create JSON
by Henrik Hjelte 12 Apr '11

12 Apr '11

>> On Thu, Apr 7, 2011 at 4:07 PM, Jim Barrows <jim.barrows(a)gmail.com> wrote: >>> >>> I'm trying to encode a list of plists, and encode-json-plist-to-string >>> doesn't appear to do it. >> >> Yes, because the first list is a list and not a plist. > > > Am I incorrect in thinking this is a list of plists? I'm still in shock > over the difference in terminology between Java and Lisp... And I am often shocked when I need to do various things in the Java world, so I understand your reaction. No your right, it is a list of p-lists. But the encode-json-plist function is for p-lists, not necessarily lists of p-lists. It is an easy way to render a simple key-value object. Probably not the best choice if you want to have control over details, then I suggest the explicit encoder. The problem is for the encoder to guess what you intend to have as output. A p-list looks just like a list, so what do you want as output, an object or a list? How should a nested list (one of the values in the key-value pair) that looks like a p-list be converted, to a json-list or a json-object? It is slightly easier with a-lists, I think you will get a list of objects if you have a list of a-lists and encode-json-alist. Or if you don't like the unpredictable ways of some code trying to guess what you want, just use the explicit encoder or the streaming encoder, then you have full control. Look at the testcases for lots of examples. /Henrik

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[cl-json-devel] ajax
by Haris 08 Apr '11

08 Apr '11

Hi. How to do ajax with cl-json on Hunchentoot ? Can you give me a simple example, calling a lisp function from javascript ? Thanks

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[cl-json-devel] installation
by Haris 08 Apr '11

08 Apr '11

Hi. I did (asdf:oos 'asdf:load-op 'cl-json) but I get: Package not found error in Lispworks (when I write cl-json: and hit tab in repl) ? What do I write in command line (Windows) to get the Darcs version ? Thanks

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[cl-json-devel] Newbie to Lisp question, trying to create JSON
by Jim Barrows 07 Apr '11

07 Apr '11

I'm trying to encode a list of plists, and encode-json-plist-to-string doesn't appear to do it. My newbiness is not seeing a better answer then to loop through the list, and encode each plist separately, concatentate the strings together to form the array. That doesn't seem too lispy to me. Is there a better way? -- James A Barrows

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