Re: Yet Another buffer question

Am 16.04.2026 um 19:33 schrieb Jim via ntg-context:
> Possibly the last buffer question for IBD 2026...
> 
> Suppose someone wants to use a buffer in a solution to some typesetting
> problem which involves more than a simple \getbuffer or \typebuffer or
> \typesetbuffer.
> 
> They could define something like
> 
>          \def\usebuf#1{...use buffer #1 as needed...}
> 
> and later do
> 
>          \startbuffer[mybuf]
>          <content>
>          \stopbuffer
>          \usebuf{mybuf}
> 
> But this isn't in the spirit of the
>          \startsomething
>          <content>
>          \stopsomething
> paradigm.
> 
> How does one define a \start-\stop "environment" that
> -> collects some content into a buffer, and then
> -> does whatever one needs to do with that content ?

There is

%%%% begin example
\definebuffer[Jim]

\starttext

\startJim
This is Jim’s buffer!
\stopJim

\typeJim \getJim

\stoptext
%%%% end example

Another alternative is

%%%% begin example
% creates \startJim ... \stopJim
\defineuserdata[Jim][alternative=Jim]

% creates argument for alternative=Jim
\defineuserdataalternative[Jim][renderingsetup=Jim]

% creates argument for renderingsetup=Jim
\startsetups[Jim]
\startframedtext
\getuserdata[Jim]% load \startJim ... \stopJim content
\stopframedtext
\stopsetups

\starttext

\startJim
This is Jim’s userdata environment!
\stopJim

\stoptext
%%%% end example

Wolfgang

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