3 \setlength\railextra{3.6ex}
4 \setlength\railboxleft{0.9ex}
5 \setlength\railboxright{0.9ex}
6 \setlength\railovalspace{1.8ex}
7 \setlength\railframespace{1.8ex}
8 \setlength\railtextleft{0.9ex}
9 \setlength\railtextright{0.9ex}
10 \setlength\railnamesep{0.9ex}
12 \setlength\railboxheight{16pt}
13 \setlength\railboxskip{24pt}
14 \setlength\railtextup{5pt}
15 \setlength\railjoinsize{16pt}
18 %% rail antiquotation environment
20 \newenvironment{railoutput}%
21 {\begin{list}{}{\rail@param}\def\rail@expand{\relax}\makeatletter}{\end{list}}
24 %% old-style content markup
26 \railalias{percent}{\%}
27 \railalias{ppercent}{\%\%}
28 \railalias{underscore}{\_}
29 \railalias{lbrace}{\texttt{\ttlbrace}}
30 \railalias{rbrace}{\texttt{\ttrbrace}}
31 \railalias{atsign}{{\at}}
33 \def\rail@termfont{\small\ttfamily\upshape}
34 \def\rail@tokenfont{\small\ttfamily\upshape}
35 \def\rail@nontfont{\small\rmfamily\upshape}
36 \def\rail@annofont{\small\rmfamily\itshape}
37 \def\rail@namefont{\small\rmfamily\itshape}
38 \def\rail@indexfont{\small\rmfamily\itshape}
39 \newcommand{\railtterm}[1]{{\texttt{#1}}}
40 \newcommand{\railtok}[1]{{\textrm{#1}}}
41 \newcommand{\railqtok}[1]{{\rmfamily\textsl{#1}}}
42 \newcommand{\railnonterm}[1]{{\emph{#1}}}