2 \railalias{percent}{\%}
3 \railalias{ppercent}{\%\%}
4 \railalias{underscore}{\_}
6 \setlength\railextra{3.6ex}
7 \setlength\railboxleft{0.9ex}
8 \setlength\railboxright{0.9ex}
9 \setlength\railovalspace{1.8ex}
10 \setlength\railframespace{1.8ex}
11 \setlength\railtextleft{0.9ex}
12 \setlength\railtextright{0.9ex}
13 \setlength\railnamesep{0.9ex}
15 \setlength\railboxheight{16pt}
16 \setlength\railboxskip{24pt}
17 \setlength\railtextup{5pt}
18 \setlength\railjoinsize{16pt}
20 \def\rail@termfont{\small\ttfamily\upshape}
21 \def\rail@tokenfont{\small\ttfamily\upshape}
22 \def\rail@nontfont{\small\rmfamily\upshape}
23 \def\rail@annofont{\small\rmfamily\itshape}
24 \def\rail@namefont{\small\rmfamily\itshape}
25 \def\rail@indexfont{\small\rmfamily\itshape}
26 \newcommand{\railtterm}[1]{{\texttt{#1}}}
27 \newcommand{\railtoken}[1]{{\textrm{#1}}}
28 \newcommand{\railqtoken}[1]{{\rmfamily\textsl{#1}}}
29 \newcommand{\railnonterm}[1]{{\emph{#1}}}