Re: [NTG-context] start/stop executed conditionally on mode ?

9 Jun 2020


      
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Le 9 juin 2020 à 03:37, Hans Hagen  a écrit :
On 6/8/2020 9:53 PM, Fabrice L wrote:
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Le 7 juin 2020 à 23:19, Aditya Mahajan mailto:adityam@umich.edu> a écrit :
On Sun, 7 Jun 2020, Fabrice L wrote:
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Dear List,
I would like to insert a page using (ideally) start/stop instructions. The problem is that this page should be inserted only in a certain mode. Consulting the mailing list, I thought the following code was working, but it’s not ! The code is executed in the mode as expected, but the following instructions ("Some other text... » in the exemple) is not typeset.
Here is a minimal (not working!) example:
% ————————————————————————————————————
\unexpanded\def\StartQuestionsList{
\startmode[ClassRoom]  \page[yes] Here are some questions: \blank
}
\unexpanded\def\StopQuestionsList{
\page[yes] \stopmode
}
\definestartstop[Questions][
before=\StartQuestionsList,
after=\StopQuestionsList
]
\startQuestions
Question A….
Question B….
\stopQuestions
Some other text...
% ————————————————————————————————————
One of the oldest mechanism available ... blocks:
\enablemode[classroom] % comment this
\defineblock[Question]
\doifmode {classroom} {
   \keepblocks[Question]
}
\starttext
Text A
\beginQuestion
       Question A….
   \endQuestion
Text B
\beginQuestion
       Question B….
   \endQuestion
\page
\doifnotmode {classroom} {
       \useblocks[Question]
   }
\stoptext
You are right of course... In fact I already use blocks, for another purpose, but I did not think about this solution because I needed a lot of formatting (these blocks should occupy whole page, different background color…), but blocks can adapt to my current need (I have try this morning) using the \setupblock[][before=..,after=…] command. And there is a bonus; I can « collect » these blocks and put them all together at the end of my courses notes, this is perfect.