SLatex and line numbering?

Question

I'm using SLaTeX to typeset some Racket source code. I would like to have line numbers along the left edge, so that I can refer to them in my document. However, I haven't yet discovered the option for turning line numbers on.

I suspect I should just switch over to the listings package and be done with it, but before I do, I wanted to check with the other LaTeX experts here.

Answer 1

From the listings documentation:

SLaTeX is a pretty-printing Scheme program (which invokes LaTeX automatically) especially designed for Scheme and other Lisp dialects. It supports stand alone files, text and display listings, and you can even nest the commands/environments if you use LATEX code in comments, for example. Keywords, constants, variables, and symbols are definable and use of different styles is possible. No line numbers.

Your best bet, is to use listings or pygments. Here is a MWE for listings to get you going.

\documentclass{article} 
\usepackage{xcolor,listings}
\begin{document} 
\lstloadlanguages{Lisp}
\newcommand\emphasis[2][red]{\lstset{emph={#2,},
   emphstyle={\ttfamily\textcolor{#1}}}}%
\emphasis{x,a}
\lstset{%
        language={[Auto]Lisp},  
        framesep=0pt,
        numbers=left,numberstyle=\normalsize,stepnumber=1,numbersep=5pt,
        breaklines=true,
    basicstyle=\normalsize\ttfamily,
    showstringspaces=false,
    keywordstyle=\ttfamily\color{blue},
    identifierstyle=\ttfamily,
    stringstyle=\color{maroon},
    commentstyle=\color{black},
    rulecolor=\color{gray!10},
    xleftmargin=5pt,
    xrightmargin=5pt,
    aboveskip=\bigskipamount,
    belowskip=\bigskipamount,
        backgroundcolor=\color{gray!5}
}
\begin{lstlisting} 
(define-syntax setq 
  (syntax-rules () 
    [(setq x a) 
     (begin (set! x a) 
            x)])) 
\end{lstlisting} 
\end{document}

What I particularly like about listings (especially if you writing tutorials), is that you can highlight specific key words (see the \emphasis macro in the code).

If you actually and absolutely insist that you use SLaTeX, yo can try the following code, which will number the full page.

\documentclass[10pt]{article}
\usepackage{fancyhdr,lipsum}
\makeatletter
 \newsavebox{\@linebox}
 \savebox{\@linebox}[3em][t]{\parbox[t]{3em}{%
   \@tempcnta\@ne\relax
   \loop{\underline{\scriptsize\the\@tempcnta}}\\
     \advance\@tempcnta by \@ne\ifnum\@tempcnta<48\repeat}}
 \pagestyle{fancy}
 \fancyhead{}
 \fancyfoot{}
 \fancyhead[CO]{\scriptsize How to Count Lines}
 \fancyhead[RO,LE]{\footnotesize\thepage}
%% insert this block within a conditional
 \fancyhead[LE]{\footnotesize\thepage\begin{picture}(0,0)%
      \put(-26,-25){\usebox{\@linebox}}%
      \end{picture}}
 \fancyhead[LO]{%
    \begin{picture}(0,0)%
      \put(-18,-25){\usebox{\@linebox}}%
     \end{picture}}
\fancyfoot[C]{\scriptsize Draft copy}
%% end conditional
\makeatother
\begin{document}
\section*{Lorem Ipsum}
\lipsum[1]
$$f_{nk}=\sum\,{\frac{n!}{
1!^{k_1}\,k_1!\,2!^{k_2}\,k_2!\,3!^{k_3}\,k_3!\,\ldots}}\; 
f_1^{k_1}f_2^{k_2}f_3^{k_3}\ldots\;,$$
summed over all $k_1,k_2,k_3,\ldots\geq 0$ 
\lipsum[3]
$$f_{nk}=\sum\,{\frac{n!}{
1!^{k_1}\,k_1!\,2!^{k_2}\,k_2!\,3!^{k_3}\,k_3!\,\ldots}}\; 
f_1^{k_1}f_2^{k_2}f_3^{k_3}\ldots\;,$$
summed over all $k_1,k_2,k_3,\ldots\geq 0$ 
\lipsum[5-7]
\end{document}