[NTG-context] Problem with \stoptabulate

[Hans Hagen]

On 3/21/2023 12:34 AM, Bruce Horrocks via ntg-context wrote:
> I have a technical manual style document that requires a lot of examples to be included.
> 
> They can easily be typeset with a table so I thought I would save myself some typing by defining macros for the various bits of a tabulate table. Thus I have:
> 
> \def\startMyExample{\starttabulate[|r|c|l|p|]}
> \def\stopMyExample{\stoptabulate}
> \def\MyExampleItem#1#2#3{\NC #1 \NC \rightarrow \NC #2 \NC #3 \NC\NR}
> 
> \starttext
> Here are some examples...
> 
> \startMyExample
>    \MyExampleItem{before}{after}{change before into after}
>    \MyExampleItem{straw}{gold}{Rumpelstiltskin}
> \stopMyExample
> %\stoptabulate
> 
> \stoptext
> 
> The problem is that \stopMyExample doesn't work - the \stoptabulate isn't recognised and I get an end of file reached error. If use a straight \stoptabulate then it works as expected. That's fine but it would be nice, from an aesthetic point of view, to have start & stop 'paired' commands in the source.
> 
> Presumably some sort of deep ConTeXt fu is going on - can anyone explain it please?
\definetabulate[MyExample][|r|c|l|p|]

\def\MyExampleItem#1#2#3{\NC #1 \NC \rightarrow \NC #2 \NC #3 \NC\NR}

\startMyExample
   \MyExampleItem{before}{after}{change before into after}
   \MyExampleItem{straw}{gold}{Rumpelstiltskin}
\stopMyExample


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