The problem are these settings in buff-imp-default.mkiv:

\setupstartstop
  [DefaultSnippet]
  [\c!before={\typingparameter\c!before},
   \c!after={\typingparameter\c!after},
   \c!style={\typingparameter\c!style}]

In buff-imp-tex.mkiv these values are inherited:

\definestartstop
    [TexSnippet]
    [DefaultSnippet]

Wolfgang


Aditya Mahajan schrieb am 28.04.2019 um 17:00:
Hi,

The following minimal example:

\definetextbackground
    [EXAMPLE]
    [
          location=paragraph,
     rulethickness=1pt,
        leftoffset=5em,
       rightoffset=0mm,
    ]

\setuptyping[option=tex, before=\startEXAMPLE, after=\stopEXAMPLE]

\starttext
\starttyping
  A = B + C
\stoptyping
\stoptext

gives the attached output where the background is repeated twice. The bug is present with both mkiv and ltmx.

Aditya


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