mjo-listing.tex

   1 %
   2 % Code listing support, in particular, for the SageMath interactive
   3 % prompt. You can create a box thingy for displaying code like,
   4 %
   5 %   \begin{tcblisting}{listing only,
   6 %                      colback=codebg,
   7 %                      coltext=codefg,
   8 %                      listing options={language=sage,style=sage}}
   9 %   sage: x
  10 %   x
  11 %   \end{tcblisting}
  12 %
  13 \ifx\havemjolisting\undefined
  14 \def\havemjolisting{1}
  15
  16
  17 \usepackage{listings}
  18 \usepackage{tcolorbox}
  19
  20 % Tell tcolorbox to use ``listings'' within the boxes.
  21 \tcbuselibrary{listings}
  22
  23 % Define the colors that we'll use in our listings.
  24 \definecolor{codefg}{rgb}{0.9, 0.9, 0.9}
  25 \definecolor{codebg}{rgb}{0.16, 0.16, 0.16}
  26 \definecolor{brilliantlavender}{rgb}{0.96, 0.73, 1.0}
  27 \definecolor{brilliantgreen}{rgb}{0.7, 0.9, 0.7}
  28 \definecolor{brown}{rgb}{0.75, 0.4, 0.4}
  29
  30 % General listing settings.
  31 \lstset{%
  32   basicstyle=\ttfamily\small,
  33   columns=fullflexible,
  34   keepspaces=true,
  35   showstringspaces=false
  36 }
  37
  38 % Define a style for interactive sage prompt listings.
  39 \lstdefinelanguage{sage}{ keywords={sage} }
  40 \lstdefinestyle{sage}{
  41   commentstyle=\color{brown},
  42   keywordstyle=\color{brilliantlavender},
  43   stringstyle=\color{brilliantgreen}
  44 }
  45
  46
  47 % Input a SageMath example code listing from a file. You generally
  48 % want these to be in separate files so that the build system can test
  49 % them automatically.
  50 %
  51 % The sole argument is the "name" of the listing, which ultimately
  52 % just identifies a file named "sage_listings/<name>.listing".
  53 \newcommand*{\sagelisting}[1]{\tcbinputlisting{listing only,%
  54                colback=codebg,%
  55                coltext=codefg,%
  56                left=2em,%
  57                listing options={language=sage,style=sage},%
  58                listing file=sage_listings/#1.listing}}
  59
  60
  61 \fi