--- loncom/homework/randomlabel.pm	2005/12/01 18:46:31	1.81
+++ loncom/homework/randomlabel.pm	2006/08/29 10:42:59	1.83
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # random labelling tool
 #
-# $Id: randomlabel.pm,v 1.81 2005/12/01 18:46:31 albertel Exp $
+# $Id: randomlabel.pm,v 1.83 2006/08/29 10:42:59 foxr Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -61,6 +61,9 @@ use Apache::File();
 use Apache::Constants qw(:common :http);
 use Image::Magick;
 use Apache::lonplot;
+use lib '/home/httpd/lib/perl/';
+use LONCAPA;
+ 
 
 my %args;
 my $cgi_id;
@@ -138,7 +141,7 @@ sub start_randomlabel {
     if ($target eq 'web') {
 	$cgi_id=&Apache::loncommon::get_cgi_id();
 	%args=();
-	$args{"cgi.$cgi_id.BGIMG"}=&Apache::lonnet::escape($bgimg);
+	$args{"cgi.$cgi_id.BGIMG"}=&escape($bgimg);
 	$height_param = &Apache::lonxml::get_param('height',$parstack, $safeeval);
 	$width_param  = &Apache::lonxml::get_param('width', $parstack, $safeeval);
     } elsif ($target eq 'tex' && defined($bgimg)) {
@@ -223,7 +226,7 @@ sub end_bgimg {
 	    &Apache::lonxml::debug("Image: $bgimg");
 	    $bgimg=&Apache::imageresponse::clean_up_image($bgimg);
 	    &Apache::lonxml::debug("Cleaned image: $bgimg");
-	    $args{"cgi.$cgi_id.BGIMG"}=&Apache::lonnet::escape($bgimg);
+	    $args{"cgi.$cgi_id.BGIMG"}=&escape($bgimg);
 	} elsif ($target eq 'tex') {
 	    #   Some bg images can create latex for us... e.g. gnuplot.
 	    #   If it looks like we have some latex use that, 
@@ -293,10 +296,20 @@ sub make_eps_image {
     &Apache::lonxml::debug("Image size: $height_param x $width_param");
 
     my $dirtywidth=$width_param+5;
+    #
+    #  Note that lonprintout/prinout will conspire to replace
+    #  spaces in paths and names with _'s since spacess cause problems
+    #  for latex included filenames.  Therefore:
+    #
+    my $safe_path = $path;
+    $safe_path =~ s/ /\_/g;
+    my $safe_file = $file;
+    $safe_file =~ s/ /\_/g;
+
     my $result ="\n".'\vspace*{2mm}\noindent'."\n".
 	'\parbox{'.$dirtywidth.
 	' mm}{  \noindent \epsfxsize='.$width_param.
-	' mm \epsffile{'.$path.$file.
+	' mm \epsffile{'.$safe_path.$safe_file.
 	'}\setlength{\unitlength}{1mm}'."\n".'  \begin{picture}('.
 	$width_param.','.$height_param.')(0,-'.$height_param.')'."\n";
     my $magick = Image::Magick->new;
@@ -422,13 +435,13 @@ sub end_labelgroup {
 	    my $i=$Apache::randomlabel::obj_cnt++;
 	    if( $type eq 'text') {
 		&add_vars($gname,$_,$label,$idx_arr[$_],$value,'',$safeeval);
-		$str = join(':',$x,$y,&Apache::lonnet::escape($label));
+		$str = join(':',$x,$y,&escape($label));
 		$args{"cgi.$cgi_id.OBJTYPE"}.='LABEL:';
 	    } elsif ( $type eq 'image') {
 		&add_vars($gname,$_,
 			  $Apache::randomlabel::description[$idx_arr[$_]],
 			  $idx_arr[$_],$value,$label,$safeeval);
-		$str = join(':',$x,$y,&Apache::lonnet::escape($label));
+		$str = join(':',$x,$y,&escape($label));
 		$args{"cgi.$cgi_id.OBJTYPE"}.='IMAGE:';
 	    } else {
 		&Apache::lonxml::error('Unknown type of label :'.$type.':');
@@ -479,6 +492,11 @@ sub end_labelgroup {
 	    } elsif ( $type eq 'image') {
 		my ($path,$file) = &Apache::londefdef::get_eps_image($label);
 		my $image_name = $path.$file;
+		#
+		#  Note that spaces in e.. \includegraphics cause problems for Latex
+		# so they get replaced by _'s by lonprintout/printout and us:
+		#
+		$image_name =~ s/ /\_/g;
 		my $label_width = &get_label_width($label);
 
 		$result .=  '\includegraphics[width='.$label_width.'mm]{'