--- loncom/homework/default_homework.lcpm	2000/10/11 20:59:43	1.3
+++ loncom/homework/default_homework.lcpm	2000/10/30 20:24:38	1.8
@@ -4,6 +4,71 @@
 #
 $RANDOMINIT=0;
 
+sub caparesponse_check {
+  my $answer='';
+  my $type='';
+  my $tol_type='';
+  my $tolerance='';
+  my $sig_lbound='';
+  my $sig_ubound='';
+  my $ans_fmt='';
+  my $unit_str='';
+  my $calc='';
+  my ($response,$expr)=@_;
+  
+  ($answer,$type,$tol_type,$tolerance,$sig_lbound,$sig_ubound,$ans_fmt,
+   $unit_str,$calc) = eval $expr.'return $answer,$type,$tol_type,$tolerance,$sig_lbound,$sig_ubound,$ans_fmt,$unit_str,$calc';
+
+  #type's definitons come from capaParser.h
+  if ($type eq '' ) {
+    if ( $answer eq ($answer *1.0)) { $type = 2;
+    } else { $type = 3; }
+  } else {
+         if ($type eq 'cs')    { $type = 4;
+    } elsif ($type eq 'ci')    { $type = 3;
+    } elsif ($type eq 'mc')    { $type = 5;
+    } elsif ($type eq 'fml')   { $type = 8;
+    } elsif ($type eq 'subj')  { $type = 7;}
+  }
+
+  
+  my $result = &caparesponse_capa_check_answer($response,$answer,$type,
+					       $tol_type,$tolerance,
+					       $sig_lbound,$sig_ubound,
+					       $ans_fmt, $unit_str,$calc);
+  return ":$result:$response:$answer:";
+}
+
+sub tex {
+  if ( $external::target eq "tex" ) {
+    #$SCRIPT_RESULT.=@_[0];
+    return @_[0];
+  } else {
+    #$SCRIPT_RESULT.=@_[1];
+    return @_[1];
+  }
+}
+
+sub web {
+  if ( $external::target eq "tex" ) {
+    #$SCRIPT_RESULT.=@_[1];
+    return @_[1];
+  } else {
+    if ( $external::target eq "web") {
+      #$SCRIPT_RESULT.=@_[0];
+      return @_[0];
+    } else {
+      #$SCRIPT_RESULT.=@_[2];
+      return @_[2];
+    }
+  }
+}
+
+sub problem {
+  $SCRIPT_RESULT.='1';
+  return '';
+}
+
 sub hinton {
   return 0;
 }
@@ -21,8 +86,9 @@ sub acos { atan2(sqrt(1 - $_[0] * $_[0])
 sub asin { atan2($_[0], sqrt(1- $_[0] * $_[0]) );  }
 
 sub html {
-  if ( $external::target == "web" ) {
-    $SCRIPT_RESULT.=@_[0];
+  if ( $external::target eq "web" ) {
+    #$SCRIPT_RESULT.=@_[0];
+    return @_[0];
   }
 }
 
@@ -35,3 +101,32 @@ sub format {
   my ($value,$fmt)=@_;
   $SCRIPT_RESULT.=sprintf('%.'.$fmt,$value);
 }
+
+sub map {
+  my $num = $#_/2;
+  my $i;
+  my @used;
+  my @permutation;
+  for ($i=0; $i < $num;) {
+    $rand = &random(1,$num,1);
+    if ( $used[$rand] == '0' ) {
+      $i++;
+      $used[$rand]='1';
+      $permutation[$i]=$rand;
+    }
+  }
+  for ( $i=1 ; $i<$num+1 ; $i++ ) {
+    ${$_[$permutation[$i]]}=$_[$i+$num]
+  }
+}
+
+sub choose {
+  my $num = $_[0];
+  return $_[$num];
+}
+#$external::randomseed=time;
+#$a=2;
+#$b=2;
+#$c=2;
+#&map(1,\$a,\$b,\$c,3,4,5);
+#print $a."\n".$b."\n";