--- loncom/homework/caparesponse/caparesponse.pm	2002/02/12 07:23:31	1.51
+++ loncom/homework/caparesponse/caparesponse.pm	2002/09/04 06:55:27	1.57
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # caparesponse definition
 #
-# $Id: caparesponse.pm,v 1.51 2002/02/12 07:23:31 albertel Exp $
+# $Id: caparesponse.pm,v 1.57 2002/09/04 06:55:27 albertel Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -156,7 +156,7 @@ sub end_numericalresponse {
 	$result='';
       }
     }
-  } elsif ($target eq 'web') {
+  } elsif ($target eq 'web' || $target eq 'tex') {
     my $award = $Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
     my $status = $Apache::inputtags::status['-1'];
     if ($award =~ /^correct/ || $status eq "SHOW_ANSWER" ) {
@@ -166,8 +166,11 @@ sub end_numericalresponse {
 						   $safeeval);
       my $unit=&Apache::lonxml::get_param_var('unit',$parstack,$safeeval);
 
-      $result="<br />The computer got ";
-
+      if ($target eq 'web') {
+	  $result="<br />The computer got ";
+      } elsif ($target eq 'tex') {
+	  $result='\vskip 0 mm The computer got \\texttt{';
+      }
       for (my $i=0; $i <= $#answers; $i++) {
 	my $answer=$answers[$i];
 	my $format;
@@ -176,16 +179,24 @@ sub end_numericalresponse {
 	} else {
 	  $format=$formats[0];
 	}
+	my $formatted;
 	if ((defined($format)) && ($format ne '')) {
 	  &Apache::lonxml::debug("formatting with :$format: answer :$answer:");
-	  $result.=sprintf('%.'.$format,$answer).',';
+	  $formatted=sprintf('%.'.$format,$answer).',';
 	} else {
 	  &Apache::lonxml::debug("no format answer :$answer:");
-	  $result.="$answer,";
+	  $formatted="$answer,";
 	}
+	if ($target eq 'tex') {$formatted=&Apache::lonxml::latex_special_symbols($formatted);}
+	$result.=$formatted;
       }
       chop $result;
-      $result.=" $unit.<br></br>";
+      if ($target eq 'web') {
+	$result.=" $unit.<br />";
+      } elsif ($target eq 'tex') {
+	$result.=&Apache::lonxml::latex_special_symbols($unit);
+	$result.="}. \\vskip 0 mm ";
+      }
     }
   } elsif ($target eq 'edit') {
     $result.='</td></tr>'.&Apache::edit::end_table;
@@ -212,6 +223,10 @@ sub end_numericalresponse {
       if ($Apache::inputtags::params{'tol'}) {
 	($high,$low)=&get_tolrange($ans,$Apache::inputtags::params{'tol'});
       }	
+      my ($sighigh,$siglow);
+      if ($Apache::inputtags::params{'sig'}) {
+	($sighigh,$siglow)=&get_sigrange($Apache::inputtags::params{'sig'});
+      }
       if ($fmt) {
 	$ans = sprintf('%.'.$fmt,$ans);
 	if ($high) {
@@ -219,10 +234,11 @@ sub end_numericalresponse {
 	}
       }
       if ($high) { $ans.=' ['.$low.','.$high.'] '; }
+      if ($sighigh) { $ans.= "Sig <i>$siglow - $sighigh</i>"; }
       $result.=&Apache::response::answer_part($$tagstack[-1],$ans);
     }
     if ($unit) {
-      $result.=&Apache::response::answer_part($$tagstack[-1],"<b>$unit</b>");
+      $result.=&Apache::response::answer_part($$tagstack[-1],"Unit: <b>$unit</b>");
     }
     if ($type || $token->[1] eq 'stringresponse') {
       my $string='Case Insensitive';
@@ -263,6 +279,25 @@ sub get_tolrange {
   return ($high,$low);
 }
 
+sub get_sigrange {
+  my ($sig)=@_;
+  &Apache::lonxml::debug("Got a sig of :$sig:");
+  my $sig_lbound;
+  my $sig_ubound;
+  if ($sig eq '') {
+    $sig_lbound = 0; #SIG_LB_DEFAULT
+    $sig_ubound =15; #SIG_UB_DEFAULT
+  } else {
+    ($sig_lbound,$sig_ubound) = split(/,/,$sig);
+    if (!$sig_lbound) {
+      $sig_lbound = 0; #SIG_LB_DEFAULT
+      $sig_ubound =15; #SIG_UB_DEFAULT
+    }
+    if (!$sig_ubound) { $sig_ubound=$sig_lbound; }
+  }
+  return ($sig_ubound,$sig_lbound);
+}
+
 sub start_stringresponse {
   my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
   my $result;