lcp@292: % extra.sty : Isabelle Manual extra macros for non-Springer version
lcp@292: %
lcp@292: \typeout{Document Style extra. Released 17 February 1994}
lcp@292: 
lcp@292: %%Euro-style date: 20 September 1955
lcp@292: \def\today{\number\day\space\ifcase\month\or
lcp@292: January\or February\or March\or April\or May\or June\or
lcp@292: July\or August\or September\or October\or November\or December\fi
lcp@292: \space\number\year}
lcp@292: 
lcp@292: \input{alltt.sty}
lcp@292: %Indented, boxed alltt environment; uses \small\tt font
lcp@292: %\leftmargini is LaTeX's first-level indentation for items (2.5em)
lcp@292: %@endparenv is LaTeX's trick for preventing indentation of next paragraph
lcp@292: \newenvironment{ttbox}{\par\nobreak\vskip-2pt
lcp@455:            \vbox\bgroup\footnotesize\begin{alltt}\chardef\{=`\{\chardef\}=`\}%
lcp@455:              \leftskip\leftmargini}%
lcp@292:         {\end{alltt}\egroup\vskip-7pt\@endparenv}
lcp@292: \newcommand\ttbreak{\end{ttbox}\vskip-10pt\begin{ttbox}}
lcp@292: 
lcp@292: %%%Put first chapter on odd page, with arabic numbering; like \cleardoublepage
lcp@292: \newcommand\clearfirst{\clearpage\ifodd\c@page\else
lcp@292:     \hbox{}\newpage\if@twocolumn\hbox{}\newpage\fi\fi
lcp@292:     \pagenumbering{arabic}}
lcp@292: 
lcp@292: %%%Ruled chapter headings 
lcp@292: \def\@rulehead#1{\hrule height1pt \vskip 14pt \Huge \bf 
lcp@292:    #1 \vskip 14pt\hrule height1pt}
lcp@292: \def\@makechapterhead#1{ { \parindent 0pt 
lcp@292:  \ifnum\c@secnumdepth >\m@ne \raggedleft\large\bf\@chapapp{} \thechapter \par 
lcp@292:  \vskip 20pt \fi \raggedright \@rulehead{#1} \par \nobreak \vskip 40pt } }
lcp@292: 
lcp@292: \def\@makeschapterhead#1{ { \parindent 0pt \raggedright 
lcp@292:  \@rulehead{#1} \par \nobreak \vskip 40pt } }
lcp@292: