use Digest::MD5 qw(md5_hex);
use File::Temp qw(tempdir);
use HTML::Entities;
-use IkiWiki 2.00;
+use Encode;
+use IkiWiki 3.00;
my $default_prefix = <<EOPREFIX;
\\documentclass{article}
+\\usepackage[utf8]{inputenc}
\\usepackage{amsmath}
\\usepackage{amsfonts}
\\usepackage{amssymb}
plugin => {
safe => 1,
rebuild => undef,
+ section => "widget",
},
teximg_dvipng => {
type => "boolean",
if (! defined $code && ! length $code) {
error gettext("missing tex code");
}
-
- if (check($code)) {
- return create($code, check_height($height), \%params);
- }
- else {
- error gettext("code includes disallowed latex commands")
- }
+ return create($code, check_height($height), \%params);
}
sub check_height ($) {
$height = 12;
}
- my $digest = md5_hex($code, $height);
+ my $digest = md5_hex(Encode::encode_utf8($code), $height);
my $imglink= $params->{page} . "/$digest.png";
my $imglog = $params->{page} . "/$digest.log";
}
my $tex = $config{teximg_prefix};
- $tex .= '$$'.$code.'$$';
+ $tex .= '\['.$code.'\]';
$tex .= $config{teximg_postfix};
$tex =~ s!\\documentclass{article}!\\documentclass[${height}pt]{article}!g;
$tex =~ s!\\documentclass{scrartcl}!\\documentclass[${height}pt]{scrartcl}!g;
my $tmp = eval { create_tmp_dir($digest) };
if (! $@ &&
writefile("$digest.tex", $tmp, $tex) &&
- system("cd $tmp; latex --interaction=nonstopmode $tmp/$digest.tex > /dev/null") == 0 &&
+ system("cd $tmp; shell_escape=f openout_any=p openin_any=p latex --interaction=nonstopmode $digest.tex < /dev/null > /dev/null") == 0 &&
# ensure destination directory exists
writefile("$imagedir/$digest.png", $config{destdir}, "") &&
(($config{teximg_dvipng} &&
return $tmpdir;
}
-sub check ($) {
- # Check if the code is ok
- my $code = shift;
-
- my @badthings = (
- qr/\$\$/,
- qr/\\include/,
- qr/\\includegraphic/,
- qr/\\usepackage/,
- qr/\\newcommand/,
- qr/\\renewcommand/,
- qr/\\def/,
- qr/\\input/,
- qr/\\open/,
- qr/\\loop/,
- qr/\\errorstopmode/,
- qr/\\scrollmode/,
- qr/\\batchmode/,
- qr/\\read/,
- qr/\\write/,
- );
-
- foreach my $thing (@badthings) {
- if ($code =~ m/$thing/ ) {
- return 0;
- }
- }
- return 1;
-}
-
1