[NTG-context] How to keep nested itemize group together with parent itemize item?

[NTG-context] How to keep nested itemize group together with parent itemize item?

[Joel via ntg-context]

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I have a nested itemize list like this, with first a question, then answer:
\starttext
\startitemize[n]    \startitem What is the color of the sky? \stopitem    \startitemize[3]        \startitem blue \stopitem        \startitem green \stopitem
        \startitem red \stopitem
        \startitem yellow \stopitem
     \stopitemize    \startitem What is the color of the grass? \stopitem    \startitemize[3]        \startitem blue \stopitem        \startitem green \stopitem
        \startitem red \stopitem
        \startitem yellow \stopitem
     \stopitemize    \startitem What is the color of the butterfly? \stopitem    \startitemize[3]        \startitem blue \stopitem        \startitem green \stopitem
        \startitem red \stopitem
        \startitem yellow \stopitem
     \stopitemize
\stopitemize

\stoptext
My copyeditor has noticed that often times a page break will appear after a question, leaving the answers, or some answers on a new page. He's requested I make sure the page breaks can only occur in front of a question, such that if a new page is needed, it places the question and answers always on the same page. Is there any way to make that happen in ConTeXt?
--Joel

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[NTG-context] Re: How to keep nested itemize group together with parent itemize item?

[Mikael Sundqvist]

Hi,

you can probably control this a bit with penalties, but it would be
better to post an example where the unwanted break actually occur.

You can do \showmakeup[vpenalty] to see what penalties are added, and
you can play with for example

\startitemize[3,intro]

for the inner itemizations. But without an example showing the problem
it is a bit difficult...

/Mikael

On Wed, Sep 25, 2024 at 4:08 AM Joel via ntg-context <ntg-context@ntg.nl> wrote:
>
> I have a nested itemize list like this, with first a question, then answer:
>
> \starttext
>
> \startitemize[n]
>     \startitem What is the color of the sky? \stopitem
>     \startitemize[3]
>         \startitem blue \stopitem
>         \startitem green \stopitem
>         \startitem red \stopitem
>         \startitem yellow \stopitem
>     \stopitemize
>     \startitem What is the color of the grass? \stopitem
>     \startitemize[3]
>         \startitem blue \stopitem
>         \startitem green \stopitem
>         \startitem red \stopitem
>         \startitem yellow \stopitem
>     \stopitemize
>     \startitem What is the color of the butterfly? \stopitem
>     \startitemize[3]
>         \startitem blue \stopitem
>         \startitem green \stopitem
>         \startitem red \stopitem
>         \startitem yellow \stopitem
>     \stopitemize
>
> \stopitemize
>
> \stoptext
>
> My copyeditor has noticed that often times a page break will appear after a question, leaving the answers, or some answers on a new page. He's requested I make sure the page breaks can only occur in front of a question, such that if a new page is needed, it places the question and answers always on the same page. Is there any way to make that happen in ConTeXt?
>
> --Joel
> ___________________________________________________________________________________
> If your question is of interest to others as well, please add an entry to the Wiki!
>
> maillist : ntg-context@ntg.nl / https://mailman.ntg.nl/mailman3/lists/ntg-context.ntg.nl
> webpage  : https://www.pragma-ade.nl / https://context.aanhet.net (mirror)
> archive  : https://github.com/contextgarden/context
> wiki     : https://wiki.contextgarden.net
> ___________________________________________________________________________________
___________________________________________________________________________________
If your question is of interest to others as well, please add an entry to the Wiki!

maillist : ntg-context@ntg.nl / https://mailman.ntg.nl/mailman3/lists/ntg-context.ntg.nl
webpage  : https://www.pragma-ade.nl / https://context.aanhet.net (mirror)
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wiki     : https://wiki.contextgarden.net
___________________________________________________________________________________

[NTG-context] Re: How to keep nested itemize group together with parent itemize item?

[ai2472206007]

If you don't mind using a little trick, 
try wrapping the questions and options in a vbox to avoid pagination. 
The best solution may be to use penalty to do so.

\def\startnewitem{\vbox\bgroup\startitem}
\def\stopnewitem{\stopitem\egroup}

\starttext
\startitemize[n]    
\startnewitem% <-- wrap
    What is the color of the sky?     
    \startitemize[3]        
        \startitem blue \stopitem        
        \startitem green \stopitem
        \startitem red \stopitem
        \startitem yellow \stopitem
     \stopitemize  
\stopnewitem % <-- wrap
\startnewitem % <-- wrap
    What is the color of the grass?     
    \startitemize[3]        
        \startitem blue \stopitem        
        \startitem green \stopitem
        \startitem red \stopitem
        \startitem yellow \stopitem
     \stopitemize
\stopnewitem% <-- wrap
\startnewitem% <-- wrap
     What is the color of the butterfly?        
     \startitemize[3]    
        \startitem blue \stopitem       
        \startitem green \stopitem
        \startitem red \stopitem
        \startitem yellow \stopitem
     \stopitemize
\stopnewitem% <-- wrap
\stopitemize

Muyik
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