From: Hans Hagen <j.hagen@xs4all.nl>
To: mailing list for ConTeXt users <ntg-context@ntg.nl>
Subject: Re: issue embedding from Lua code
Date: Fri, 1 Nov 2019 10:29:29 +0100 [thread overview]
Message-ID: <ddf9e980-149d-c48d-5437-68fca51e565d@xs4all.nl> (raw)
In-Reply-To: <36e08820-80d2-5328-4f4d-335dcfdf640b@gmail.com>
On 11/1/2019 9:13 AM, Wolfgang Schuster wrote:
> Pablo Rodriguez schrieb am 01.11.2019 um 08:20:
>> Dear list,
>>
>> I have the following sample:
>>
>> \setupinteraction[state=start]
>> \starttext
>> \startluacode
>> function document.special_attachment(reference)
>> year = reference:sub(7, 10)
>> attachment_url = "https://www.boe.es/buscar/pdf/" ..
>> year .. "/" .. reference .. "-consolidado.pdf"
>> return attachment_url
>> end
>> \stopluacode
>>
>> \unexpanded\def\giveattachment#1{%
>> \cldcontext{document.special_attachment("#1")}}
>>
>> \def\cE{BOE-A-1978-31229}
>>
>> \attachment[file={\giveattachment{\cE}}, color=red]
>>
>>
>> \attachment[file={https://www.boe.es/buscar/pdf/1978/BOE-A-1978-31229-consolidado.pdf},
>>
>> color=blue]
>>
>> \giveattachment{\cE}
>>
>> \stoptext
>>
>> I don’t know why I do get the second attachment, but not the first one.
>> Lua code seems to be fine (given the last command in the sample).
>>
>> Could anyone explain me what I’m doing wrong?
> You try to pass a protected (\expanded\def) command to a argument of
> another command
> which doesn't work: Remove \unexpanded and your output is as expected.
>
> \def\giveattachment#1%
> {\cldcontext{document.special_attachment("#1")}}
>
> or
>
> \def\giveattachment
> {\cldcontext{document.special_attachment(tokens.scanners.string())}}
als also make
year
attachment_url
local variables
Hans
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next prev parent reply other threads:[~2019-11-01 9:29 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-11-01 7:20 Pablo Rodriguez
2019-11-01 8:13 ` Wolfgang Schuster
2019-11-01 9:29 ` Hans Hagen [this message]
2019-11-01 9:44 ` Pablo Rodriguez
2019-11-01 10:08 ` Wolfgang Schuster
2019-11-01 10:48 ` Pablo Rodriguez
2019-11-01 11:06 ` Wolfgang Schuster
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