[NTG-context] Some problems with framing typed text.

[Brooks Moses]

In the document I'm working on, I'd like to put some typed code bits in 
frames, to get an appearance sort of like the code excerpts on the 
ConTeXtWiki.  However, I've found myself needing to do a couple of rather 
ugly hacks to get that to work right, and I'm hoping for some suggestions 
on how to avoid that.

Here's what I have so far:
\def\typebufferframed[#1]{%
  \vskip\parskip
  \framed[background=color,
   backgroundcolor=gray,
   frame=on,
   strut=yes,
   offset=2mm,
   width=broad,
   framecolor=black,
   align=right]%
   {\vskip -11mm\typebuffer[#1]\vskip -5mm}}
\starttext
Plain text before the code.
\startbuffer[ex1]
This is an example.
\stopbuffer
\typebufferframed[ex1]
Plain text after the code.
\stoptext
The hacks that I'd like to get rid of:
It would be nice not to have to put the code in a buffer before typing it, 
since in general I only use these once.  However, if I put \starttyping and 
\stoptyping inside a framed command (even if I don't encapsulate it in 
another function) it breaks, and putting \startframedtext in the before= 
command and \stopframedtext in the after= command of \setuptyping also 
doesn't work.

The spacing, when I do things the way that I'm doing them, is all 
wrong.  The \vskip\parskip at the top is reasonably ok (although a bit 
annoying), but I'd really like to figure out how to get rid of the large 
negative \vskip's inside the frame.

Thanks!
- Brooks
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