% dafny.sty

% Dafny mode for the LaTeX listings package.

% Rustan Leino, 22 June 2008.



\usepackage{listings}



\lstdefinelanguage{dafny}{

  morekeywords={class,datatype,codatatype,type,iterator,

      bool,nat,int,object,set,multiset,seq,array,array2,array3,map,

      function,predicate,copredicate,

      ghost,var,static,refines,

      method,constructor,comethod,

      returns,yields,abstract,module,import,default,opened,as,in,

      requires,modifies,ensures,reads,decreases,free,

      % expressions

      match,case,false,true,null,old,fresh,choose,this,

      % statements

      assert,assume,print,new,if,then,else,while,invariant,break,label,return,yield,

      parallel,where,calc

      },

  literate=%

    {:}{$\colon$}1

    {::}{$\bullet$}2

    {:=}{$:$$=$}2

    {!}{$\lnot$}1

    {!!}{$\not\cap$}1

    {==}{$=$}1

    {!=}{$\neq$}1

    {&&}{$\land$}1

    {||}{$\lor$}1

    {<=}{$\le$}1

    {>=}{$\ge$}1

    % the following isn't actually Dafny, but it gives the option to produce nicer latex

    {|=>}{$\Rightarrow$}2

    {<=set}{$\subseteq$}1

    {+set}{$\cup$}1

    {*set}{$\cap$}1

    {==>}{$\Longrightarrow$}3 

    {=>}{$\Rightarrow$}2

    {<==>}{$\Longleftrightarrow$}4 

    {forall}{$\forall$}1

    {exists}{$\exists$}1

    {!in}{$\not\in$}1

    {\\in}{$\in$}1

    % the following isn't actually Dafny, but it gives the option to produce nicer latex

    {<<}{$\langle$}1

    {>>}{$\rangle$}1

    {(==)}{${}^{(=)}$}2

    {...}{$\ldots$}1

    {\\alpha}{$\alpha$}1

    {\\beta}{$\beta$}1

    {\\gamma}{$\gamma$}1

    {\\delta}{$\delta$}1

    {\\epsilon}{$\epsilon$}1

    {\\zeta}{$\zeta$}1

    {\\eta}{$\eta$}1

    {\\theta}{$\theta$}1

    {\\iota}{$\iota$}1

    {\\kappa}{$\kappa$}1

    {\\lambda}{$\lambda$}1

    {\\mu}{$\mu$}1

    {\\nu}{$\nu$}1

    {\\xi}{$\xi$}1

    {\\pi}{$\pi$}1

    {\\rho}{$\rho$}1

    {\\sigma}{$\sigma$}1

    {\\tau}{$\tau$}1

    {\\upsilon}{$\upsilon$}1

    {\\phi}{$\phi$}1

    {\\chi}{$\chi$}1

    {\\psi}{$\psi$}1

    {\\omega}{$\omega$}1

    {\\Gamma}{$\Gamma$}1

    {\\Delta}{$\Delta$}1

    {\\Theta}{$\Theta$}1

    {\\Lambda}{$\Lambda$}1

    {\\Xi}{$\Xi$}1

    {\\Pi}{$\Pi$}1

    {\\Sigma}{$\Sigma$}1

    {\\Upsilon}{$\Upsilon$}1

    {\\Phi}{$\Phi$}1

    {\\Psi}{$\Psi$}1

    {\\Omega}{$\Omega$}1

    ,

  sensitive=true,  % case sensitive

  morecomment=[l]{//},

  morecomment=[s]{/*}{*/},

  morestring=[b]",

  numbers=none,

  firstnumber=0,

  numberstyle=\tiny,

  stepnumber=5,

  basicstyle=\scriptsize\sffamily,

  commentstyle=\itshape,

  keywordstyle=\bfseries,

  ndkeywordstyle=\bfseries,

}

\lstnewenvironment{dafny}[1][]{%

  \lstset{language=dafny,

    floatplacement={tbp},captionpos=b,

    frame=lines,xleftmargin=8pt,xrightmargin=8pt,basicstyle=\ttfamily,#1}}{}

\lstnewenvironment{dafnyNoLines}[1][]{%

  \lstset{language=dafny,

    floatplacement={tbp},captionpos=b,

    xleftmargin=8pt,xrightmargin=8pt,basicstyle=\ttfamily,#1}}{}

\def\inlinedafny{%

    \lstinline[language=dafny,basicstyle=\ttfamily,columns=fixed]}

\newcommand{\lstfile}[1]{

  \lstinputlisting[language=dafny,%

    frame=lines,xleftmargin=8pt,xrightmargin=8pt,basicstyle=\ttfamily,columns=fixed]{#1}

}