\def\ind{\quad\=\+\kill}
\def\@progcr{\futurelet\@tempa\@progcr@i}
{\def\:{\gdef\@progcr@sp}\: {\@progcr}}
+\atdef~{\textasciitilde}
\def\@progcr@i{%
\ifx\@tempa\@sptoken\let\next@\@progcr@sp\else
\if1\ifx\@tempa[1\else
\def\@progcr@ii#1{\csname @progcr@#1\endcsname\ignorespaces}
\@namedef{@progcr@+}{\prog@@cr[\medskipamount]}
\@namedef{@progcr@-}{\prog@@cr*[\jot]}
+\def\macsl{\`\textbackslash\hskip\leftmargin}
%% Put a chunk of text in a box.
\newenvironment{boxy}[1][\q@]{%
\definedescribecategory{be-meth}{before method}
\definedescribecategory{af-meth}{after method}
\definedescribecategory{cls}{class}
+\definedescribecategory{rst}{restart}
\definedescribecategory{ty}{type}
\definedescribecategory{type}{type}
\definedescribecategory{mac}{macro}