+=item generate_pdf FILENAME
+
+Returns an PDF rendition of the LaTex file, as a scalar. FILENAME does not
+contain the .tex suffix and is unlinked by this function.
+
+=cut
+
+use String::ShellQuote;
+
+sub generate_pdf {
+ my $file = shift;
+
+ my $dir = $FS::UID::conf_dir. "/cache.". $FS::UID::datasrc;
+ chdir($dir);
+
+ #system('pdflatex', "$file.tex");
+ #system('pdflatex', "$file.tex");
+ #! LaTeX Error: Unknown graphics extension: .eps.
+
+ _pslatex($file);
+
+ my $sfile = shell_quote $file;
+
+ #system('dvipdf', "$file.dvi", "$file.pdf" );
+ system(
+ "dvips -q -t letter -f $sfile.dvi ".
+ "| gs -q -dNOPAUSE -dBATCH -sDEVICE=pdfwrite -sOutputFile=$sfile.pdf ".
+ " -c save pop -"
+ ) == 0
+ or die "dvips | gs failed: $!";
+
+ open(PDF, "<$file.pdf")
+ or die "can't open $file.pdf: $! (error in LaTeX template?)\n";
+
+ unlink("$file.dvi", "$file.log", "$file.aux", "$file.pdf", "$file.tex");
+
+ my $pdf = '';
+ while (<PDF>) {
+ $pdf .= $_;
+ }
+
+ close PDF;
+
+ return $pdf;
+
+}
+
+sub _pslatex {
+ my $file = shift;
+
+ #my $sfile = shell_quote $file;
+
+ my @cmd = (
+ 'latex',
+ '-interaction=batchmode',
+ '\AtBeginDocument{\RequirePackage{pslatex}}',
+ '\def\PSLATEXTMP{\futurelet\PSLATEXTMP\PSLATEXTMPB}',
+ '\def\PSLATEXTMPB{\ifx\PSLATEXTMP\nonstopmode\else\input\fi}',
+ '\PSLATEXTMP',
+ "$file.tex"
+ );
+
+ my $timeout = 30; #? should be more than enough
+
+ for ( 1, 2 ) {
+
+ local($SIG{CHLD}) = sub {};
+ #run( \@cmd, '>'=>'/dev/null', '2>'=>'/dev/null', timeout($timeout) )
+ run( \@cmd, timeout($timeout) )
+ or die "pslatex $file.tex failed; see $file.log for details?\n";
+
+ }
+
+}
+