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#! perl -w
#
# Builds an HTML file and a bunch of GIF files from a Metapost file
# Also creates a PS file
#
# (c) Vincent Zoonekynd <zoonek@math.jussieu.fr>
# August 1999
# modified in august 2001
# distributed under the GPL
#
$main = $ARGV[0] || "examples";
$main =~ s/\.mp$//i;
# On crée les images GIF
# BUG : à chaque fois qu'il y a des fontes, ça plante.
# C'est normal pour deux raisons :
# - si j'utilisais prologuse:=2, il ne trouverait pas les fontes.
# - Comme j'utilise prologues:=0, c'est encore pire...
# L'idéal serait de créer un fichier LaTeX pour chaque fichier postscript,
# de lancer later puis dvips dessus et de récupérer le fichier postscript.
# 1. Compile the examples
system "TEX=latex mpost --interaction=nonstopmode $main";
# 2. Create a LaTeX file encompassing the examples and compile it
open(LATEX,'>', "$main.tex") || die "Cannot open examples.tex for writing: $!";
print LATEX '\documentclass[a4paper]{article}' ."\n";
print LATEX '\usepackage{graphicx}' ."\n";
print LATEX '\begin{document}' ."\n";
print LATEX '\begin{verbatim}' ."\n";
open(MP, "<", "$main.mp") || die "cannot open $main.mp for reading: $!";
while(<MP>){
if (m/^\s*beginfig\s*\((.*)\)/) {
print LATEX '\end{verbatim}' . "\n";
print LATEX "\\includegraphics{${main}_$1.mps}\n";
print LATEX '\begin{verbatim}' . "\n";
print LATEX $_;
} elsif (m/^\s*endfig/) {
print LATEX $_;
print LATEX '\end{verbatim}' ."\n";
print LATEX '\hrulefill' . "\n";
print LATEX '\begin{verbatim}' . "\n";
} else {
print LATEX $_;
}
}
print LATEX '\end{verbatim}' . "\n";
print LATEX '\end{document}' ."\n";
close MP;
close LATEX;
opendir(DIR,"./") || die "Cannot open ./ directory for reading : $!";
foreach $file (readdir DIR) {
if ($file =~ m/^$main.[0-9]+$/) {
my $new = $file;
$new =~ s/\./_/g;
$new .= ".mps";
symlink $file, $new;
}
}
closedir(DIR);
system "latex --interaction=nonstopmode $main.tex";
system "dvips -o $main.ps $main.dvi";
#system "pdflatex --interaction=nonstopmode $main.tex";
# 3. Create the GIF pictures
opendir(DIR,"./") || die "Cannot open ./ directory for reading : $!";
foreach $file (readdir DIR) {
if ($file =~ m/^$main.[0-9]+$/) {
## Création du fichier PS
symlink "$file", "$file.eps";
open(TEX,">$file.tex") || die "cannot open $file.tex for writing : $!";
print TEX '\nonstopmode' ."\n" ;
print TEX '\documentclass[a4paper,10pt]{article}' ."\n" ;
print TEX '\usepackage[T1]{fontenc}\usepackage[latin1]{inputenc}' ."\n" ;
print TEX '\usepackage{graphicx,amsmath,amssymb}' ."\n" ;
print TEX '\pagestyle{empty}' ."\n" ;
print TEX '\begin{document}' ."\n" ;
print TEX '\includegraphics{'. "$file.eps" .'}' ."\n" ;
print TEX '\end{document}' ."\n" ;
close TEX;
system "latex $file.tex";
system "dvips -E -f $file.dvi -o $file.ps";
## Transformation en GIF
my ($bbx,$bby,$bbw,$bbh);
open(PS,"$file.ps");
while (<PS>) {
if (/^%%BoundingBox:\s+(-?\d+)\s+(-?\d+)\s+(-?\d+)\s+(-?\d+)/) {
$bbx = 0-$1; $bby = 0-$2;
$bbw = $3+$bbx; $bbh = $4+$bby;
# print "*** Seen BBOX\n";
}
last if /^%%EndComments/;
}
close(PS);
my $scale = 3;
my $density = 72*$scale;
$bbw = $scale * $bbw;
$bbh = $scale * $bbh;
# print "*** gs -q -dNOPAUSE -dNO_PAUSE -sDEVICE=ppmraw -g${bbw}x${bbh} -r$density -sOutputFile=$file.ppm\n";
open(GS, "|gs -q -dNOPAUSE -dNO_PAUSE -sDEVICE=ppmraw -g${bbw}x${bbh} -r$density -sOutputFile=$file.ppm");
print GS "$bbx $bby translate\n";
print GS "($file.ps) run\n";
print GS "showpage\n";
print GS "quit\n";
close(GS);
system("pnmcrop $file.ppm | ppmquant 256 | ppmtogif > $file.gif");
unlink "$file.ppm";
}
}
# 4. Create the HTML file
open(MP,"$main.mp") || die "cannot open $main.mp for reading: $!";
open(HTML,">$main.html") || die "cannot open $main.html for writing: $!";
select HTML;
print "<HTML><HEAD><TITLE>Metapost : exemples</TITLE></HEAD><BODY>\n";
print "<H1> Métapost : exemples </H1>\n";
print "<HR><PRE>\n";
while(<MP>){
if (m/^\s*beginfig\s*\((.*)\)/) {
print "</PRE><IMG SRC=\"$main.$1.gif\"><PRE>\n";
print ;
} elsif (m/^\s*endfig/) {
print;
print "</PRE><HR><PRE>\n";
} else {
print;
}
}
print "</PRE>\n";
print "</BODY></HTML>\n";
close HTML;
close MP;
# 5. Remove unnecessary files
opendir(DIR,"./") || die "Cannot open ./ directory for reading : $!";
foreach $file (readdir DIR) {
if ($file =~ m/^$main.[0-9]+$/) {
unlink $file;
unlink "$file.tex";
unlink "$file.dvi";
unlink "$file.aux";
unlink "$file.log";
unlink "$file.eps";
unlink "$file.ps";
my $new = $file;
$new =~ s/\./_/g;
$new .= ".mps";
unlink $new;
} elsif( $file =~ m/\.mpx$/ ) {
unlink $file;
}
}
closedir DIR;
unlink "$main.aux";
unlink "$main.log";
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