1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/doc-src/extra.sty	Wed Mar 23 11:32:21 1994 +0100
     1.3 @@ -0,0 +1,34 @@
     1.4 +% extra.sty : Isabelle Manual extra macros for non-Springer version
     1.5 +%
     1.6 +\typeout{Document Style extra. Released 17 February 1994}
     1.7 +
     1.8 +%%Euro-style date: 20 September 1955
     1.9 +\def\today{\number\day\space\ifcase\month\or
    1.10 +January\or February\or March\or April\or May\or June\or
    1.11 +July\or August\or September\or October\or November\or December\fi
    1.12 +\space\number\year}
    1.13 +
    1.14 +\input{alltt.sty}
    1.15 +%Indented, boxed alltt environment; uses \small\tt font
    1.16 +%\leftmargini is LaTeX's first-level indentation for items (2.5em)
    1.17 +%@endparenv is LaTeX's trick for preventing indentation of next paragraph
    1.18 +\newenvironment{ttbox}{\par\nobreak\vskip-2pt
    1.19 +           \vbox\bgroup\footnotesize\begin{alltt} \leftskip\leftmargini}%
    1.20 +        {\end{alltt}\egroup\vskip-7pt\@endparenv}
    1.21 +\newcommand\ttbreak{\end{ttbox}\vskip-10pt\begin{ttbox}}
    1.22 +
    1.23 +%%%Put first chapter on odd page, with arabic numbering; like \cleardoublepage
    1.24 +\newcommand\clearfirst{\clearpage\ifodd\c@page\else
    1.25 +    \hbox{}\newpage\if@twocolumn\hbox{}\newpage\fi\fi
    1.26 +    \pagenumbering{arabic}}
    1.27 +
    1.28 +%%%Ruled chapter headings 
    1.29 +\def\@rulehead#1{\hrule height1pt \vskip 14pt \Huge \bf 
    1.30 +   #1 \vskip 14pt\hrule height1pt}
    1.31 +\def\@makechapterhead#1{ { \parindent 0pt 
    1.32 + \ifnum\c@secnumdepth >\m@ne \raggedleft\large\bf\@chapapp{} \thechapter \par 
    1.33 + \vskip 20pt \fi \raggedright \@rulehead{#1} \par \nobreak \vskip 40pt } }
    1.34 +
    1.35 +\def\@makeschapterhead#1{ { \parindent 0pt \raggedright 
    1.36 + \@rulehead{#1} \par \nobreak \vskip 40pt } }
    1.37 +