--- loncom/interface/Attic/lonspreadsheet.pm	2002/04/10 15:30:13	1.83
+++ loncom/interface/Attic/lonspreadsheet.pm	2002/04/12 21:41:13	1.86
@@ -1,5 +1,5 @@
 #
-# $Id: lonspreadsheet.pm,v 1.83 2002/04/10 15:30:13 matthew Exp $
+# $Id: lonspreadsheet.pm,v 1.86 2002/04/12 21:41:13 matthew Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -111,6 +111,23 @@ my %parmhash;
 my $includedir;
 my $tmpdir;
 
+# ------------------------------------------------ Send critical message
+sub send_crit_msg {
+    my ($uname,$udom,$subject,$message,$sendback) = @_;
+    my $result = &Apache::lonmsg::user_crit_msg($uname,$udom,$subject,
+                                                $message,$sendback);
+    return ($result eq 'ok' ? 1 : 0);
+}
+
+# ------------------------------------------------ Send noncritical message
+sub send_msg {
+    my ($uname,$udom,$subject,$message) = @_;
+    my $result = &Apache::lonmsg::user_normal_msg($uname,$udom,
+                                                  $subject,$message);
+    return ($result eq 'ok' ? 1 : 0);
+}
+
+
 # =============================================================================
 # ===================================== Implements an instance of a spreadsheet
 
@@ -122,6 +139,8 @@ sub initsheet {
     $safeeval->permit("sort");
     $safeeval->deny(":base_io");
     $safehole->wrap(\&Apache::lonnet::EXT,$safeeval,'&EXT');
+    $safehole->wrap(\&send_msg,     $safeeval,"&send_msg");
+    $safehole->wrap(\&send_crit_msg,$safeeval,"&send_crit_msg");
     my $code=<<'ENDDEFS';
 # ---------------------------------------------------- Inside of the safe space
 
@@ -508,6 +527,15 @@ sub HASH {
     return $Values[-1];
 }
 
+#-------------------------------------------------------
+
+=item NUM(range)
+
+returns the number of items in the range.
+
+=cut
+
+#-------------------------------------------------------
 sub NUM {
     my $mask=mask(@_);
     my $num= $#{@{grep(/$mask/,keys(%v))}}+1;
@@ -527,6 +555,15 @@ sub BIN {
 }
 
 
+#-------------------------------------------------------
+
+=item SUM(range)
+
+returns the sum of items in the range.
+
+=cut
+
+#-------------------------------------------------------
 sub SUM {
     my $mask=mask(@_);
     my $sum=0;
@@ -536,6 +573,15 @@ sub SUM {
     return $sum;   
 }
 
+#-------------------------------------------------------
+
+=item MEAN(range)
+
+compute the average of the items in the range.
+
+=cut
+
+#-------------------------------------------------------
 sub MEAN {
     my $mask=mask(@_);
     my $sum=0; my $num=0;
@@ -550,6 +596,15 @@ sub MEAN {
     }   
 }
 
+#-------------------------------------------------------
+
+=item STDDEV(range)
+
+compute the standard deviation of the items in the range.
+
+=cut
+
+#-------------------------------------------------------
 sub STDDEV {
     my $mask=mask(@_);
     my $sum=0; my $num=0;
@@ -566,6 +621,15 @@ sub STDDEV {
     return sqrt($sum/($num-1));    
 }
 
+#-------------------------------------------------------
+
+=item PROD(range)
+
+compute the product of the items in the range.
+
+=cut
+
+#-------------------------------------------------------
 sub PROD {
     my $mask=mask(@_);
     my $prod=1;
@@ -575,6 +639,15 @@ sub PROD {
     return $prod;   
 }
 
+#-------------------------------------------------------
+
+=item MAX(range)
+
+compute the maximum of the items in the range.
+
+=cut
+
+#-------------------------------------------------------
 sub MAX {
     my $mask=mask(@_);
     my $max='-';
@@ -585,6 +658,15 @@ sub MAX {
     return $max;   
 }
 
+#-------------------------------------------------------
+
+=item MIN(range)
+
+compute the minimum of the items in the range.
+
+=cut
+
+#-------------------------------------------------------
 sub MIN {
     my $mask=mask(@_);
     my $min='-';
@@ -595,12 +677,22 @@ sub MIN {
     return $min;   
 }
 
+#-------------------------------------------------------
+
+=item SUMMAX(num,lower,upper)
+
+compute the sum of the largest 'num' items in the range from
+'lower' to 'upper'
+
+=cut
+
+#-------------------------------------------------------
 sub SUMMAX {
     my ($num,$lower,$upper)=@_;
     my $mask=mask($lower,$upper);
     my @inside=();
     foreach (grep /$mask/,keys(%v)) {
-	$inside[$#inside+1]=$v{$_};
+	push (@inside,$v{$_});
     }
     @inside=sort(@inside);
     my $sum=0; my $i;
@@ -610,6 +702,16 @@ sub SUMMAX {
     return $sum;   
 }
 
+#-------------------------------------------------------
+
+=item SUMMIN(num,lower,upper)
+
+compute the sum of the smallest 'num' items in the range from
+'lower' to 'upper'
+
+=cut
+
+#-------------------------------------------------------
 sub SUMMIN {
     my ($num,$lower,$upper)=@_;
     my $mask=mask($lower,$upper);
@@ -625,6 +727,40 @@ sub SUMMIN {
     return $sum;   
 }
 
+#-------------------------------------------------------
+
+=item SEND_CRIT_MSG(subject,message)
+
+Send a critical message to a student.  
+
+=cut
+
+#-------------------------------------------------------
+sub SEND_CRIT_MSG {
+    my ($subject,$message) = @_;
+    my $name = $uname;
+    my $dom  = $udom;
+    return (&send_crit_msg($name,$dom,$subject,$message) ? 'Message Sent.' 
+                                                    : 'Error sending message');
+}
+
+#-------------------------------------------------------
+
+=item SEND_MSG(subject,message)
+
+Send a message to a student.  
+
+=cut
+
+#-------------------------------------------------------
+sub SEND_MSG {
+    my ($subject,$message) = @_;
+    my $name = $uname;
+    my $dom  = $udom;
+    return (&send_msg($name,$dom,$subject,$message) ? 'Message Sent.' 
+                                                    : 'Error sending message');
+}
+
 sub expandnamed {
     my $expression=shift;
     if ($expression=~/^\&/) {
@@ -1233,17 +1369,11 @@ sub readsheet {
      } elsif($fn=~/\/*\.spreadsheet$/) {
          my $sheetxml=&Apache::lonnet::getfile
              (&Apache::lonnet::filelocation('',$fn));
-         print "<pre>$sheetxml</pre>";
          if ($sheetxml == -1) {
              $sheetxml='<field row="0" col="A">"Error loading spreadsheet '
                  .$fn.'"</field>';
          }
          %f=%{&parse_sheet(\$sheetxml)};
-         print "<pre>";
-         foreach (sort( keys(%f))) {
-             print "$_ = $f{$_}\n";
-         }
-         print "</pre>";
      } else {
          my $sheet='';
          my %tmphash = &Apache::lonnet::dump($fn,$cdom,$cnum);
@@ -2342,8 +2472,8 @@ $tmpdir=$r->dir_config('lonDaemons').'/t
 
     function celledit(cn,cf) {
         var cnf=prompt(cn,cf);
-	if (cnf!=null) {
-	    document.sheet.unewfield.value=cn;
+        if (cnf!=null) {
+            document.sheet.unewfield.value=cn;
             document.sheet.unewformula.value=cnf;
             document.sheet.submit();
         }