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