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From: Gerben Wierda <gerben.wierda@rna.nl>
To: Hans Hagen <j.hagen@xs4all.nl>
Cc: mailing list for ConTeXt users <ntg-context@ntg.nl>
Subject: Re: Reverse traversing of xml.collected()?
Date: Fri, 1 May 2020 14:06:05 +0200	[thread overview]
Message-ID: <1F7C2FBF-C790-4FF9-86AD-01E8A1D0625D@rna.nl> (raw)
In-Reply-To: <c15698b7-e6f1-5555-59d2-f2f7a8200390@xs4all.nl>


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> On 1 May 2020, at 13:30, Hans Hagen <j.hagen@xs4all.nl> wrote:
> 
> On 5/1/2020 11:31 AM, Gerben Wierda wrote:
>> I’d like to travese the contents of an xml.collected() in a reverse order. I have
>>     for connectionFromXML in xml.collected(viewFromXML,"/connection") do
>>       parseXMLConnection( rootFromXML, connectionFromXML, viewFromXML, rootFromOverrideXML)
>>     end
>> I tried:
>>     local relationTable = xml.collected(viewFromXML,"/connection")
>>     for i=#relationTable, 1, -1 do
>>       connectionFromXML = relationTable[i]
>>       parseXMLConnection( rootFromXML, connectionFromXML, viewFromXML, rootFromOverrideXML)
>>     end
>> But apparently my lua knowledge is lacking (severely, I might say) as this ends with “attempt to get length of a function value“
> 
> it's an iterator
> 
>> What is the correct way to do it?
> xml.all

Tried to find documentation, but failed.

Tried this:

    local relationTable = xml.all(viewFromXML,"/connection")
    for i=#relationTable, 1, -1 do
      connectionFromXML = relationTable[i]
      parseXMLConnection( rootFromXML, connectionFromXML, viewFromXML, rootFromOverrideXML)
    end

but it fails as well.

G

> 
> -----------------------------------------------------------------
>                                          Hans Hagen | PRAGMA ADE
>              Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
>       tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl
> -----------------------------------------------------------------


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  reply	other threads:[~2020-05-01 12:06 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-05-01  9:31 Gerben Wierda
2020-05-01 11:30 ` Hans Hagen
2020-05-01 12:06   ` Gerben Wierda [this message]
2020-11-10 14:06     ` Jano Kula

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