%
%  this is a style file for generating worksheets for mathematics
%  workshops.
%
%
%  creation:  01 may 1995
%  small revision:  03 sep 1995
%  small revision:  30 sep 2000 [added header macro]
%
%  maintained by:  randall j pruim  
%                  (escholar@archives.math.utk.edu, rpruim@calvin.edu) 
%
%  please send comments, suggests, etc to one of the addresses above.
%
%  please do NOT modify this file.  
%  if you should wish to add or modify functionality of this style, 
%  this file can be input as-is into a local style.
%
%
%

\input environ
\makeatletter


\newcounter{probnum}
\newcounter{subprobnum}
\newcount\temp@count
\newcount\col@num
\newcount\max@col

\def\resetprobnum{
\setcounter{probnum}{0}
}

\def\thesubprobnum{\mbox{\alph{subprobnum})}}
\def\theprobnum{\mbox{\arabic{probnum}}}

\newif\if@showSolSubProb
\gdef\solsUseSubProbs{\@showSolSubProbtrue}
\gdef\solsDontUseSubProbs{\@showSolSubProbfalse}

\newif\if@showid
\def\showIDs{\@showidtrue}
\def\hideIDs{\@showidfalse}
\hideIDs

\def\probid#1{\if@showid [#1]\else \relax \fi}

\newif\if@showtopics
\def\showtopics{\@showtopicstrue}
\def\hidetopics{\@showtopicsfalse}
\hidetopics

\def\topic#1{\if@showtopics {\it[#1]}\else \relax \fi}

\newenvironment{sbprobs}%
{   \renewcommand{\labelenumii}{\alph{enumii})}%
    \begin{enumerate}%
    \temp@count=\value{subprobnum}%
    \setcounter{enumii}{\temp@count}%
}%
{   \temp@count=\value{enumii}%
    \setcounter{subprobnum}{\temp@count}%
    \end{enumerate}%
}

\def\beginsubprobs{\begin{sbprobs}}%
\def\endsubprobs{\end{sbprobs}}%


\def\endsubprobtab{\\ \end{tabular}\end{center}}

\def\subprob{\refstepcounter{subprobnum}\mbox{\alph{subprobnum})}~}%

%  the macro \subhang is really obsolete.  it was used in some onlder files,
%  but should be avoided now.

\def\subhang{\hangindent\labelwidth\advance\hangindent\labelsep}%


\def\beginprob{%
    \begingroup
    \renewcommand{\labelenumi}{\large\bf\arabic{enumi}.}
    \begin{enumerate}%
    \setcounter{subprobnum}{0}
    \temp@count=\value{probnum}%
    \setcounter{enumi}{\temp@count}%  
    \item
   }

\def\endprob{\end{enumerate}%
          \temp@count=\value{enumi}%
          \setcounter{probnum}{\temp@count}%
          \endgroup}

%  to import encapsulated postscript figures:
%
\def\figpath#1{\def\fig@path{#1}}
\figpath{}
\def\epsfig#1#2{%
      \epsfxsize=#1\epsfbox{\fig@path #2}%
      \typeout{PostScript Figure: {#2}.  Use a PostScript Driver.}}

%  for definitions by case.  

\def\cases#1{\left\{\mbox{%
     \begin{tabular}{@{$}l@{$\qquad}l} #1 \end{tabular}%
    }\right.}


%  these can be used to group problems which belong together.
%  currently there is no official support for this.  but these 
%  macros could be modified to do something.  in house, at the 
%  University of Wisconsin, they are used to bind problems together
%  in software which generates worksheets.
%
\def\beginprobseq{\relax}
\def\endprobseq{\relax}


% smaller margins than laTeX uses for its article style.

\setlength{\textwidth}{7 in}
\setlength{\oddsidemargin}{0pt}
\hoffset=-.3in
\setlength{\textheight}{9.0in}
\setlength{\topmargin}{-.2in}

\makeatother


%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% Solutions stuff
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\newtoks\tempTok
\newwrite\solFile%
\immediate\openout\solFile=\jobname.sol
 
\long\def\saveSolution#1{%
\immediate\write\solFile{\string\begingroup\string\bf }%
\immediate\write\solFile{\expandafter\arabic{enumi}}%
%\if@showSolSubProb\immediate\write\solFile{\expandafter\alph{enumii}}\fi%
%\immediate\write\solFile{\expandafter\alph{enumii}}%
\immediate\write\solFile{\string\endgroup}%
\tempTok={#1}%
\immediate\write\solFile{\the\tempTok}%
\immediate\write\solFile{}%
}

\long\def\writeToSolFile#1{%
\immediate\write\solFile{#1}%
%\immediate\write\solFile{}%
}
 
 
\long\def\tokWriteToSolFile#1{%
\tempTok={#1}
\immediate\write\solFile{\the\tempTok}%
%\immediate\write\solFile{}%
}
 
 
\long\def\sol#1{\saveSolution{#1}}

\long\def\solpage#1{%
\immediate\write\solFile{\string\pagebreak}%
\saveSolution{#1}%
}
 
\def\solutions{%
\begingroup
\section*{Solutions}
\immediate\closeout\solFile
\parindent=0pt
\input \jobname.sol
\endgroup
}
 
 

\def\nameBlank{Name \rule{2.5in}{.5pt}}
\def\header#1#2{%	course, term 
\noindent #1 

\noindent #2 
\hfill \nameBlank
}

\def\bp{\beginprob}
\def\ep{\endprob}

\def\bsp{\beginsubprobs}
\def\esp{\endsubprobs}