X-Git-Url: http://git.vanrenterghem.biz/git.ikiwiki.info.git/blobdiff_plain/ffec6806087981420eaf83c8d83cc4523a46d0de..8d4342183b1c3a96797def6fff96feebacb90db6:/IkiWiki/Plugin/teximg.pm

diff --git a/IkiWiki/Plugin/teximg.pm b/IkiWiki/Plugin/teximg.pm
index dba5372b5..e0f97614b 100644
--- a/IkiWiki/Plugin/teximg.pm
+++ b/IkiWiki/Plugin/teximg.pm
@@ -8,10 +8,12 @@ use strict;
 use Digest::MD5 qw(md5_hex);
 use File::Temp qw(tempdir);
 use HTML::Entities;
+use Encode;
 use IkiWiki 3.00;
 
 my $default_prefix = <<EOPREFIX;
 \\documentclass{article}
+\\usepackage[utf8]{inputenc}
 \\usepackage{amsmath}
 \\usepackage{amsfonts}
 \\usepackage{amssymb}
@@ -31,6 +33,7 @@ sub getsetup () {
 		plugin => {
 			safe => 1,
 			rebuild => undef,
+			section => "widget",
 		},
 		teximg_dvipng => {
 			type => "boolean",
@@ -69,13 +72,7 @@ sub preprocess (@) {
 	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 ($) {
@@ -108,7 +105,7 @@ sub create ($$$) {
 		$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";
@@ -147,15 +144,15 @@ sub gen_image ($$$$) {
 	}
 	
 	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;
+	$tex =~ s!\\documentclass\{article}!\\documentclass[${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} &&
@@ -191,34 +188,4 @@ sub create_tmp_dir ($) {
 	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