GNU bug report logs - #42994
27.1; json-serialize unable to serialize JSON values

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: Philipp <p.stephani2 <at> gmail.com>
Cc: tracker <at> debbugs.gnu.org
Subject: bug#46486: closed (28.0.50; json-parse-string missing support for
 key-less json strings)
Date: Sat, 13 Feb 2021 13:41:02 +0000

[Message part 1 (text/plain, inline)]

Your message dated Sat, 13 Feb 2021 14:40:18 +0100
with message-id <EE4F6626-E314-47B7-87AF-18D924750588 <at> gmail.com>
and subject line bug#42994: 27.1; json-serialize unable to serialize JSON values
has caused the debbugs.gnu.org bug report #42994,
regarding 28.0.50; json-parse-string missing support for key-less json strings
to be marked as done.

(If you believe you have received this mail in error, please contact
help-debbugs <at> gnu.org.)


-- 
42994: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=42994
GNU Bug Tracking System
Contact help-debbugs <at> gnu.org with problems

[Message part 2 (message/rfc822, inline)]

From: Thomas Hisch <thomas.hisch <at> ims.co.at>
To: <bug-gnu-emacs <at> gnu.org>
Subject: 28.0.50; json-parse-string missing support for key-less json strings
Date: Sat, 13 Feb 2021 13:04:09 +0100

The `json-read-from-string' function doesn't support json strings that
only contain a single value, which is neither a list nor a dict, e.g.

"123"

or

"\"abc\""

However, `json-read-from-string' doesn't have this issue:

(require 'json)
(json-read-from-string "\"abc\"")
-> "abc"

(json-parse-string "\"abc\"")
-> progn: could not parse JSON stream: "'[' or '{' expected near '\"abc\"'", "<string>", 1, 5, 5

Note that strings that neither start with [ nor { are valid JSON objects
according to the JSON schema.

Since the docstring of `json-parse-string' mentions `json-serialize' as
essentially being the reverse operation of `json-parse-string', I've
tried to serialize a lisp string:

(json-serialize "abc")
-> progn: Wrong type argument: json-value-p, "abc"

I would also expect this `json-serialize' call to work.



In GNU Emacs 28.0.50 (build 1, x86_64-pc-linux-gnu, X toolkit, cairo version 1.16.0, Xaw scroll bars)
 of 2021-02-12 built on thomas-XPS-13-9360
Repository revision: db237850abc240e2c3e765e9cc7e15ee5681dcaf
Repository branch: master
Windowing system distributor 'The X.Org Foundation', version 11.0.12009000
System Description: Ubuntu 20.10

Configured using:
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Load-path shadows:
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/home/thomas/.emacs.d/user-lisp/custom hides /opt/emacs/share/emacs/28.0.50/lisp/custom

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Memory information:
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 (symbols 48 75095 48)
 (strings 32 356592 50903)
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[Message part 3 (message/rfc822, inline)]

From: Philipp <p.stephani2 <at> gmail.com>
To: 42994-done <at> debbugs.gnu.org
Subject: bug#42994: 27.1; json-serialize unable to serialize JSON values
Date: Sat, 13 Feb 2021 14:40:18 +0100

I’ve now fixed this with commit 625de7e403.

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