%% toc

 \newcommand{\tocentry}[1]{\cleardoublepage\phantomsection\addcontentsline{toc}{chapter}{#1}

 \@mkboth{\MakeUppercase{#1}}{\MakeUppercase{#1}}}

 %% paragraphs

 \setlength{\parindent}{1em}

 %% references

 \newcommand{\secref}[1]{\S\ref{#1}}

 \newcommand{\figref}[1]{figure~\ref{#1}}

 %% logical markup

 \newcommand{\strong}[1]{{\bfseries {#1}}}

 \newcommand{\qn}[1]{\emph{#1}}

 %% typographic conventions

 \newcommand{\qt}[1]{``{#1}''}

 %% verbatim text

 \newcommand{\isatypewriter}{\fontsize{9pt}{0pt}\tt\renewcommand{\baselinestretch}{1}\setlength{\baselineskip}{9pt}}

 %% quote environment

 \isakeeptag{quote}

 \renewenvironment{quote}

   {\list{}{\leftmargin2em\rightmargin0pt}\parindent0pt\parskip0pt\item\relax}

   {\endlist}

 \renewcommand{\isatagquote}{\begin{quote}}

 \renewcommand{\endisatagquote}{\end{quote}}

 \newcommand{\quotebreak}{\\[1.2ex]}

 %% presentation

 \setcounter{secnumdepth}{2} \setcounter{tocdepth}{2}

 %% character detail

 \renewcommand{\isadigit}[1]{\isamath{#1}}

 \binperiod

 \underscoreoff

 %% format

 \pagestyle{headings}

 \isabellestyle{it}

 %%% Local Variables: 

 %%% mode: latex

 %%% TeX-master: "implementation"

 %%% End: