X-Git-Url: https://sipb.mit.edu/gitweb.cgi/ikiwiki.git/blobdiff_plain/69e35d3c515cd30c9baf82468008d0b0643e1e1f..0faceb91c07636284e8543d517721a25dbe29058:/IkiWiki/Plugin/teximg.pm

diff --git a/IkiWiki/Plugin/teximg.pm b/IkiWiki/Plugin/teximg.pm
index 661d97b1f..3d6fa9942 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 IkiWiki 2.00;
+use Encode;
+use IkiWiki 3.00;
 
 my $default_prefix = <<EOPREFIX;
 \\documentclass{article}
+\\usepackage[utf8]{inputenc}
 \\usepackage{amsmath}
 \\usepackage{amsfonts}
 \\usepackage{amssymb}
@@ -21,16 +23,17 @@ EOPREFIX
 
 my $default_postfix = '\\end{document}';
 
-sub import { #{{{
+sub import {
 	hook(type => "getsetup", id => "teximg", call => \&getsetup);
 	hook(type => "preprocess", id => "teximg", call => \&preprocess);
-} #}}}
+}
 
-sub getsetup () { #{{{
+sub getsetup () {
 	return
 		plugin => {
 			safe => 1,
 			rebuild => undef,
+			section => "widget",
 		},
 		teximg_dvipng => {
 			type => "boolean",
@@ -52,9 +55,9 @@ sub getsetup () { #{{{
 			safe => 0, # Not sure how secure LaTeX is...
 			rebuild => 1,
 		},
-} #}}}
+}
 
-sub preprocess (@) { #{{{
+sub preprocess (@) {
 	my %params = @_;
 	
 	my $height = $params{height};
@@ -69,16 +72,10 @@ sub preprocess (@) { #{{{
 	if (! defined $code && ! length $code) {
 		error gettext("missing tex code");
 	}
+	return create($code, check_height($height), \%params);
+}
 
-	if (check($code)) {
-		return create($code, check_height($height), \%params);
-	}
-	else {
-		error gettext("code includes disallowed latex commands")
-	}
-} #}}}
-
-sub check_height ($) { #{{{
+sub check_height ($) {
 	# Since latex doesn't support unlimited scaling this function
 	# returns the closest supported size.
 	my $height =shift;
@@ -95,9 +92,9 @@ sub check_height ($) { #{{{
 		}
 	}
 	return $ret;
-} #}}}
+}
 
-sub create ($$$) { #{{{
+sub create ($$$) {
 	# This function calls the image generating function and returns
 	# the <img .. /> for the generated image.
 	my $code = shift;
@@ -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";
@@ -127,9 +124,9 @@ sub create ($$$) { #{{{
 	else {
 		error qq{<a href="$logurl">}.gettext("failed to generate image from code")."</a>";
 	}
-} #}}}
+}
 
-sub gen_image ($$$$) { #{{{
+sub gen_image ($$$$) {
 	# Actually creates the image.
 	my $code = shift;
 	my $height = shift;
@@ -147,7 +144,7 @@ sub gen_image ($$$$) { #{{{
 	}
 	
 	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;
@@ -155,7 +152,7 @@ sub gen_image ($$$$) { #{{{
 	my $tmp = eval { create_tmp_dir($digest) };
 	if (! $@ &&
 	    writefile("$digest.tex", $tmp, $tex) &&
-	    system("cd $tmp; latex --interaction=nonstopmode $tmp/$digest.tex > /dev/null") == 0 &&
+	    system("cd $tmp; shell_escape=f openout_any=p openin_any=p latex --interaction=nonstopmode $digest.tex < /dev/null > /dev/null") == 0 &&
 	    # ensure destination directory exists
 	    writefile("$imagedir/$digest.png", $config{destdir}, "") &&
 	    (($config{teximg_dvipng} &&
@@ -180,45 +177,15 @@ sub gen_image ($$$$) { #{{{
 
 		return 0;
 	}
-} #}}}
+}
 
-sub create_tmp_dir ($) { #{{{
+sub create_tmp_dir ($) {
 	# Create a temp directory, it will be removed when ikiwiki exits.
 	my $base = shift;
 
 	my $template = $base.".XXXXXXXXXX";
 	my $tmpdir = tempdir($template, TMPDIR => 1, CLEANUP => 1);
 	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