% File ``mosml.sty'' --- old macroes for lecture notes
% Updated 1992-07-03, ..., 2000-06-14

% NEWCOMMANDS

\newcommand{\com}{\newcommand}
\newcommand{\rcom}{\renewcommand}

%  No leaders in contents list 
\def\@dotsep{400}

% Going into math mode when possibly already there:
\def\mymath#1{\relax\ifmmode{#1}\else${#1}$\fi}

% Going out of math mode when possibly not there:
\def\mynomath#1{\relax\ifmmode{\mathchoice%
{\hbox{#1}}%
{\hbox{#1}}%
{\hbox{\scriptsize{#1}}}%
{\hbox{\tiny{#1}}}%
}\else{\mbox{#1}}\fi}

%  Spacing between items in list removed (stolen from ph.sty)
%
\def\@listI{\leftmargin\leftmargini \parsep 0pt plus 1pt%
\topsep 10pt plus 4pt minus 6pt%
\itemsep 0pt plus 1pt}
\def\@listii{\leftmargin\leftmarginii
 \labelwidth\leftmarginii\advance\labelwidth-\labelsep
 \topsep 4.5pt plus 2pt minus 1pt
 \parsep 0pt plus 1pt
 \itemsep \parsep}

% Environment for displaying material.  Indents the same amount as
% displaymath, equations, etc.

\newenvironment{quot}{\begin{list}{{}}{
        \setlength{\partopsep}{0mm}\setlength{\topsep}{3mm}
\setlength{\leftmargin}{\mathindent}\setlength{\rightmargin}{0mm}}
\item[]}{\end{list}} 

% Super, Subscript

\com{\sub}[1]{\mymath{_{#1}}}
\rcom{\sup}[1]{\mymath{^{#1}}}
\com{\n}{\mymath{_n}}
\com{\m}{\mymath{_m}}
\com{\et}{\mymath{_1}}
\com{\nul}{\mymath{_0}}
\rcom{\to}{\mymath{_2}}
\com{\tre}{\mymath{_3}}
\com{\p}{\mymath{'}}
\com{\mkset}[1]{\{#1\}}

% Program texts -----------------------------------------

\newcommand{\programenvironment}{\programmode%
        \def\par{\leavevmode\endgraf}\obeylines\nobreak%
        \programmode}
\newcommand{\programinfig}{%
         \parindent 0em
         \nobreak\programenvironment}
\newcommand{\programmode}{\small\tt%
        \catcode`\_=12 \catcode`\?=12 \catcode`\.=12 \catcode`\,=12
        \catcode`\;=12 \catcode`\:=12 \catcode`\@=12 \catcode`\~=12
        \catcode`\#=12 \catcode`\&=12      % Added by PS 1991-06-17
        \catcode`\^=12                     % Added by PS 1992-11-03
        \obeyspaces\frenchspacing}%

\newenvironment{programintext}{\programenvironment}{}

\newlength{\programwidth}

\newenvironment{program}{%
        \setlength{\programwidth}{\textwidth}
        \addtolength{\programwidth}{-\leftmargin}
        \setlength{\partopsep}{0mm}\setlength{\topsep}{0mm}
        \begin{trivlist}\item[]
        \addtolength{\programwidth}{-\mathindent}
        \hspace*{\mathindent}\begin{minipage}{\programwidth}
        \vspace{1mm}
        \begin{programintext}
        }{\end{programintext}
        \vspace{1mm}
        \end{minipage}
        \end{trivlist}
        \noindent}

% The following is an environment for listing (long) programs in
% appendices etc., by PS 1991-06-17

\com{\separatingline}{\noindent\rule[0.5\baselineskip]{\linewidth}{0.3mm}}

\newenvironment{longprogram}{%
        \vspace{\baselineskip}
        \separatingline
        \programenvironment
        \setlength{\baselineskip}{0.8\baselineskip}
        }{%
        \separatingline}

% What the following code does is not clear.  Maybe it makes Tex
% respect spaces and tabs in the source text, which is useful for
% program layout.

{\catcode`\^^I=\active \obeyspaces\global\def^^I{ }}
{\obeyspaces\global\let =\ } % let active space = control space
{\catcode`\`=\active \gdef`{\relax\lq}}