sparql.sty

\NeedsTeXFormat{LaTeX2e}[1994/12/01]

\ProvidesPackage{sparql}[2012/02/20 - sparqlTeX: SPARQL in LaTeX]

\newwrite\@out
\newwrite\@module

%% sparql environment

\begingroup \catcode `|=0 \catcode `[=1
\catcode`]=2 \catcode `\{=12 \catcode `\}=12
\catcode`\\=12 |gdef|@xsparql#1\end{sparql}[|immediate|write|@out[#1]|end[sparql]]
|endgroup

\def\sparql{\kernel@ifnextchar [{\@sparql}{\@sparql[]}}

\def\@sparql[#1]{%
\gdef\@sparqlinclude{#1}
\immediate\openout\@out=sparql.py
\newlinechar='15
\begingroup \catcode`\^^M=12 %
\let\do\@makeother\dospecials\obeyspaces%
\@xsparql}

\def\endsparql{%
\endgroup
\immediate\closeout\@out
\@writemodule
\immediate\write18{cat \@sparqlinclude\space sparql.py ;  python sparqltex.py -run sparql tmpres}
\immediate\input tmpres
\immediate\write18{sleep 2}
}

\def\@writemodule{%
\immediate\openout\@module=latex.py
\immediate\write\@module{jobname="\jobname"}
\immediate\closeout\@module}