From: Hans Hagen <j.hagen@xs4all.nl>
To: mailing list for ConTeXt users <ntg-context@ntg.nl>,
Aditya Mahajan <adityam@umich.edu>
Subject: Re: Typing within doifmode leads to error
Date: Sun, 21 Mar 2021 02:43:42 +0100 [thread overview]
Message-ID: <388305dc-1e93-e380-2274-35ed896af2c0@xs4all.nl> (raw)
In-Reply-To: <nycvar.YAK.7.78.908.2103201658450.819312@nqv-guvaxcnq>
On 3/20/2021 10:03 PM, Aditya Mahajan wrote:
> On Sat, 20 Mar 2021, Hans Hagen wrote:
>
>>>
>>> I wonder if we could have an environment, say \startluatemplate ...
>>> \stopluatemplate, which is evaluated on the fly rather than when loading a
>>> file.
>>
>> define 'evaluated on the fly'
>
> Consider the following example:
>
> \enablemode[A]
> \starttext
> \startluatemplate
> <?lua if tex.modes["A"] and not tex.modes["B"] then ?>
> \starttyping
> A and not B
> \stoptyping
> <?lua else ?>
> \starttyping
> not (A and not B)
> \stoptyping
> <?lua end ?>
> \stopluatemplate
> \stoptext
>
> What I am thinking is that \startluatemplate ... \stopluatemplate grabs the content (like a buffer) and then processes it using the mkix conversion mechanism. Thus, in terms of output, it should be equivalent to:
>
> \enablemode[A]
> \starttext
> \startbuffer[luatemplate]
> <?lua if tex.modes["A"] and not tex.modes["B"] then ?>
> \starttyping
> A and not B
> \stoptyping
> <?lua else ?>
> \starttyping
> not (A and not B)
> \stoptyping
> <?lua end ?>
> \stopbuffer
> \savebuffer[file={\jobname-luatemplate.mkix}, list={luatemplate}]
> \input \jobname-luatemplate.mkix
> \stoptext
>
> but without the need to save to an external file.
this is just for the mode right? in that case we can also can provide
<?lua tex.enablemode("A") ?>
Hans
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next prev parent reply other threads:[~2021-03-21 1:43 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-03-19 3:58 Christoph Reller
2021-03-19 4:37 ` Aditya Mahajan
2021-03-19 6:59 ` Christoph Reller
2021-03-19 8:49 ` Hans Hagen
2021-03-20 5:24 ` Christoph Reller
2021-03-20 7:24 ` Aditya Mahajan
2021-03-20 11:11 ` Hans Hagen
2021-03-20 15:00 ` Christoph Reller
2021-03-20 17:07 ` Hans Hagen
2021-03-20 20:23 ` Aditya Mahajan
2021-03-20 20:49 ` Hans Hagen
2021-03-20 21:03 ` Aditya Mahajan
2021-03-21 1:43 ` Hans Hagen [this message]
2021-03-21 2:40 ` Aditya Mahajan
2021-03-21 14:44 ` Christoph Reller
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