[texhax] listings.sty question: how to implement single-spacing

[martin f krafft]

Hey folks,

I am using the wonderful listings.sty to typeset my code listings
for my thesis. Since I am using (have to use) double-spacing for the
flow text, I'd like to ensure single-spacing for listings to
conserve space, and because it actually increases the readability.

My attempts thus far have been foiled. The following does not work,
even though I can happily define the new environment with with
\lstnewenvironment if I don't try to use the singlespace environment
in its "constructor" and "destructor":

  \documentclass{article}
  \usepackage{listings,setspace}
  \lstnewenvironment{mylisting}
  {\begin{singlespace}\lstset{language=pascal}}
  {\end{singlespace}}
  \begin{document}
  \begin{mylisting}
  for i:=maxint to 0 do
  begin
  { do nothing }
  end;
  \end{mylisting}
  \end{document}

This gives me:

  % latex l.tex
  This is pdfTeXk, Version 3.141592-1.40.3 (Web2C 7.5.6)
  [...]
  Package: `setspace' 6.7 <2000/12/01>
  ) (./l.aux) (/usr/share/texmf-texlive/tex/latex/listings/lstlang1.sty)
  (/usr/share/texmf-texlive/tex/latex/base/omscmr.fd))
  *
   ^--- cursor just stays here and I am in TeX command mode

Do you have any idea how to make it do what I want? How can
I typeset visually-appealing listings (with frames across multiple
pages, labels and captions, I don't care so much about syntax
highlighting) in singly-spaced?

Thanks,

-- 
martin | http://madduck.net/ | http://two.sentenc.es/
 
"wickedness is a myth
 invented by good people
 to account for the curious attraction of others."
                                                        -- oscar wilde
 
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