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Re: JSON Parsing Edge Case
From: |
Basil L. Contovounesios |
Subject: |
Re: JSON Parsing Edge Case |
Date: |
Fri, 11 May 2018 09:45:35 +0100 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/27.0.50 (gnu/linux) |
"T.V Raman" <address@hidden> writes:
> Noam Postavsky <address@hidden> writes:
>
> I meant json-read-string --apologies. json-parse-buffer needs the
> underlying emacs to be compiled with the json C module.
>> On 10 May 2018 at 19:48, T.V Raman <address@hidden> wrote:
>>> The following happens with both json-read -- the elisp implementation
>>> as well as json-parse-string implemented in C --
>>>
>>> Try this json fragment -- by typing it into an empty buffer:
>>>
>>> {"quote": "1"}
>>>
>>> The above is a json dict with one key -- "quote" -- with value 1.
>>>
>>> Parsing this into an emacs alist -- either with (json-read) or
>>> (json-parse-buffer)
>>> yields the following lisp structure --
>>>
>>> ('. "1")
>>
>> With json-read, and (json-read-from-string "{\"quote\": \"1\"}"), I get
>>
>> ((quote . "1"))
>>
>> json-parse-string and json-parse-buffer don't seem to exist for me
>> (using the latest master branch).
>>
FWIW, after emacs -Q and (require 'json), the following four forms all
evaluate to ((quote . "1")) on my end:
(with-temp-buffer
(insert "{\"quote\": \"1\"}")
(goto-char (point-min))
(json-read))
(with-temp-buffer
(insert "{\"quote\": \"1\"}")
(goto-char (point-min))
(json-parse-buffer :object-type 'alist))
(json-read-from-string "{\"quote\": \"1\"}")
(json-parse-string "{\"quote\": \"1\"}" :object-type 'alist)
AFAICT the json.el function json-read-string is for reading a single
JSON string at point, not a whole object.
--
Basil
In GNU Emacs 27.0.50 (build 20, x86_64-pc-linux-gnu, X toolkit, Xaw3d scroll
bars)
of 2018-05-10 built on thunk
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