--- loncom/xml/lonplot.pm	2008/03/24 21:53:41	1.136
+++ loncom/xml/lonplot.pm	2008/05/12 11:13:28	1.137
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # Dynamic plot
 #
-# $Id: lonplot.pm,v 1.136 2008/03/24 21:53:41 raeburn Exp $
+# $Id: lonplot.pm,v 1.137 2008/05/12 11:13:28 foxr Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -821,8 +821,10 @@ sub parse_label {
 
 
 my %lookup = 
-   ('(Alpha|#913)'    => {'tex' => '{/Symbol A}', 'web' => "\x{391}"},
-     '(Beta|#914)'    => {'tex' => '{/Symbol B}', 'web' => "\x{392}"},
+   (  # Greek alphabet:
+
+     '(Alpha|#913)'    => {'tex' => '{/Symbol A}', 'web' => "\x{391}"},
+      '(Beta|#914)'    => {'tex' => '{/Symbol B}', 'web' => "\x{392}"},
      '(Chi|#935)'     => {'tex' => '{/Symbol C}', 'web' => "\x{3A7}"},
      '(Delta|#916)'   => {'tex' => '{/Symbol D}', 'web' => "\x{394}"},
      '(Epsilon|#917)' => {'tex' => '{/Symbol E}', 'web' => "\x{395}"},
@@ -869,6 +871,29 @@ my %lookup =
      '(xi|#958)'      => {'tex' => '{/Symbol x}', 'web' => "\x{3BE}"},
      '(psi|#968)'     => {'tex' => '{/Symbol y}', 'web' => "\x{3C8}"},
      '(zeta|#950)'    => {'tex' => '{/Symbol z}', 'web' => "\x{3B6}"},
+
+      # Punctuation:
+      
+      '(quot|#034)'   => {'tex' =>  '\42',        'web' => '\42'},
+      '(amp|#038)'    => {'tex' =>  '\46',        'web' => '\46'},
+      '(lt|#060)'     => {'tex' =>  '\74',        'web' => '\74'},
+      '(gt|#062)'     => {'tex' =>  '\76',        'web' => '\76'},
+      '#131'          => {'tex' =>  '{/Symbol \246}', 'web' => "\x{192}"},
+      '#132'          => {'tex' => '{/Text \271}',        'web' => "\x{201e}"},
+      '#133'          => {'tex' => '{/Symbol \274}', 'web'=> "\x{2026}"},
+      '#134'          => {'tex' => '{/Text \262}',  'web' => "\x{2020}"},
+      '#135'          => {'tex' => '{/Text \263}',  'web' => "\x{2021}"},
+      '#136'          => {'tex' => '\\\\^',            'web' => '\\\\^'},
+      '#137'          => {'tex' => '{/Text \275}', 'web' => "\x{2030}"},
+      '#138'          => {'tex' => 'S',           'web' => "\x{160}"}, # no S-caron in ps fonts.
+      '#139'          => {'tex' => '<',           'web' => '<'},
+      '#140'          => {'tex' => '{/Text \352}','web' => "\x{152}"},
+      '#145'          => {'tex' => '\140',        'web' => "\x{2018}"},
+      '#146'          => {'tex' => '\47',         'web' => "\x{2019}"},
+      '#147'          => {'tex' => '{/Text \252}','web' => "\x{201c}"},
+      '#148'          => {'tex' => '{/Text \315}','web' => '\\"'},
+      '#149'          => {'tex' => '{/Symbol \267}', 'web' => "\x{2022}"},
+      
     );
 
 
@@ -876,6 +901,7 @@ sub replace_entities {
     my ($target,$text) = @_;
     $text =~ s{([_^~\{\}]|\\\\)}{\\\\$1}g;
     while (my ($re, $replace) = each(%lookup)) {
+	my $repl = $replace->{$target};
 	$text =~ s/&$re;/$replace->{$target}/g;
     }
     $text =~ s{(&)}{\\\\$1}g;