X-Git-Url: http://git.vanrenterghem.biz/git.ikiwiki.info.git/blobdiff_plain/35c90a5b582f0d40a122b151580e313c2b157b6f..7aab2d2ac63315604b72de41ec57e32da3c9c25e:/IkiWiki/Plugin/polygen.pm

diff --git a/IkiWiki/Plugin/polygen.pm b/IkiWiki/Plugin/polygen.pm
index c14889167..966b6cb51 100644
--- a/IkiWiki/Plugin/polygen.pm
+++ b/IkiWiki/Plugin/polygen.pm
@@ -11,8 +11,7 @@ use IkiWiki;
 use File::Find;
 
 sub import { #{{{
-	IkiWiki::hook(type => "preprocess", id => "polygen",
-		call => \&preprocess);
+	hook(type => "preprocess", id => "polygen", call => \&preprocess);
 } # }}}
 
 sub preprocess (@) { #{{{
@@ -22,11 +21,16 @@ sub preprocess (@) { #{{{
 
 	# Sanitize parameters
 	$grammar =~ IkiWiki::basename($grammar);
+	$grammar =~ s/[^A-Za-z0-9]//g;
 	$grammar =~ s/\.grm$//;
 	$grammar .= '.grm';
 	$symbol =~ s/[^A-Za-z0-9]//g if defined $symbol;
+	$symbol = IkiWiki::possibly_foolish_untaint($symbol) if defined $symbol;
 
 	my $grmfile = '/usr/share/polygen/ita/polygen.grm';
+	if (! -d '/usr/share/polygen') {
+		return "[[polygen not installed]]";
+	}
 	find({wanted => sub {
 			if (substr($File::Find::name, -length($grammar)) eq $grammar) {
 				$grmfile = IkiWiki::possibly_foolish_untaint($File::Find::name);