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Re: [Jsonpath] JSNOPath Interim meeting next week

Stefan Gössner <stefan@goessner.net> Tue, 26 April 2022 07:36 UTC

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Date: Tue, 26 Apr 2022 09:36:47 +0200
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To: Glyn Normington <glyn.normington.work@gmail.com>
Cc: Tim Bray <tbray@textuality.com>, jsonpath@ietf.org
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From: Stefan Gössner <stefan@goessner.net>
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Subject: Re: [Jsonpath] JSNOPath Interim meeting next week
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hmm ... I see your point with singular pathes, but does this really 
automatically forbid nested filters? I need to think about that.

Nevertheless ... filter syntax allows it.


Am 26.04.2022 um 09:13 schrieb Glyn Normington:
> Nested filters are disallowed because only Singular Paths are allowed 
> inside filter expressions.
>
> On Tue, 26 Apr 2022 at 07:54, Stefan Gössner <stefan@goessner.net> wrote:
>
>     oh ... the following doesn't need discussion, but lacks documentation.
>
>     JSONPath explicitly allows nested filters, so we need at least one
>     example:
>
>     Let a JSON document hold circular and rectangular shapes
>     `{"cir":[...],"rec":[...]}`, where each shape has different colors.
>
>     Now filtering the shape container holding at least one shape with
>     a red color property, we would write
>
>     `$[? @[? @.color == 'red']]`
>
>     and yield either the "cir" or the "rec" container or both or none.
>
>
>
>     Am 25.04.2022 um 19:53 schrieb Stefan Gössner:
>>     I think, we need to address/discuss ...
>>
>>     * Filtering object members by index (key), which isn't possible
>>     right now. In combination with regular expressions that would be
>>     very powerful ($[? @index =~ 'cat|dog') ... avoiding function
>>     syntax here.
>>     * how to deal with functions ... how could an extension point be
>>     of help here (length property of objects/arrays) ?
>>     --
>>     Stefan
>>
>>     Am 21.04.2022 um 18:43 schrieb Tim Bray:
>>>     Quoting from IESG secretary email of April 4th: The JSON Path
>>>     (jsonpath) WG will hold
>>>     a virtual interim meeting on 2022-04-26 from 10:00 to 12:00
>>>     Europe/Amsterdam (08:00 to 10:00 UTC).
>>>
>>>     Things have gone quiet, so time for another lurch forward.  I
>>>     will survey issues and propose agenda items. This is your chance
>>>     for input.
>>>
>>
>
>     -- 
>     JSONpath mailing list
>     JSONpath@ietf.org
>     https://www.ietf.org/mailman/listinfo/jsonpath
>

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