Using \dorecheckindentation inside a group

* Using \dorecheckindentation inside a group
@ 2018-08-10 17:41 Aditya Mahajan
  2018-08-10 18:00 ` Wolfgang Schuster
  0 siblings, 1 reply; 3+ messages in thread
From: Aditya Mahajan @ 2018-08-10 17:41 UTC (permalink / raw)
  To: mailing list for ConTeXt users

Hi,

In t-filter module, I use a group inside \startfilter ... \stopfilter to 
keep various definitions local. However, as reported on [1], this breaks 
the `indentnext` option. The following minimal example illustrates the 
issue:

\unprotect
\definenamespace
   [whatever]
   [
     name=whatever,
     command=yes,
     setup=list,
     parent=whatever,
   ]

\appendtoks
     \setuevalue{\e!start\currentwhatever}{\start_whatever[\currentwhatever]}%
     \setuvalue {\e!stop\currentwhatever}{\stop_whatever}%
\to \everydefinewhatever

\starttexdefinition start_whatever
     \dodoubleargument\start_whatever_indeed
\stoptexdefinition

\starttexdefinition start_whatever_indeed[#1][#2]
   \begingroup % to keep assignments local
   \edef\currentwhatever{#1}
   \setupwhatever[#1][#2]
\stoptexdefinition

\starttexdefinition stop_whatever
   \useindentnextparameter\whateverparameter
   \dorechecknextindentation
   \endgroup
\stoptexdefinition

\protect

\definewhatever[whatever]

\setupindenting[big,yes]

\startbuffer
\input ward

\startwhatever
   \input tufte
\stopwhatever

\input ward
\stopbuffer

\starttext

\section{With indentnext=yes}
\setupwhatever[indentnext=yes]
\getbuffer

\section{with indentnext=no}
\setupwhatever[indentnext=no]
\getbuffer

\section{with indentnext=auto}
\setupwhatever[indentnext=auto]
\getbuffer

\stoptext

I use a \begingroup inside \start_whatever to keep the definitions local 
(otherwise \setupwhatever[#1][#2] will change the global setup). This 
means that I have to use \dorecheckindentation \endgroup. As a result, 
when I use `indentnext=auto`, the check for \par fails (see the third case 
in the above example).

How can I fix this?

Thanks,
Aditya

[1]: 
https://tex.stackexchange.com/questions/445198/context-break-paragraph-after-t-vim-code-block
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