--- loncom/xml/londefdef.pm	2002/04/08 15:17:01	1.52
+++ loncom/xml/londefdef.pm	2002/04/16 14:37:24	1.53
@@ -2,7 +2,7 @@
 # The LearningOnline Network with CAPA
 # Tags Default Definition Module 
 #
-# $Id: londefdef.pm,v 1.52 2002/04/08 15:17:01 sakharuk Exp $
+# $Id: londefdef.pm,v 1.53 2002/04/16 14:37:24 sakharuk Exp $
 # 
 #
 # Copyright Michigan State University Board of Trustees
@@ -114,6 +114,7 @@ sub end_m {
               $currentstring = &Apache::lonxml::xmlbegin().
                                &Apache::lonxml::fontsettings();     
 	    } elsif ($target eq 'tex') {
+	      @Apache::londefdef::table = ();
 	      $currentstring .= '\documentclass[letterpaper]{article}
                                  \newcommand{\keephidden}[1]{}           
                                  \usepackage[dvips]{graphicx}
@@ -1264,16 +1265,20 @@ EDITBUTTON
             if ($target eq 'web') {
               $currentstring = $token->[4];     
 	    } elsif ($target eq 'tex') {
+		my $aa = {};
+		push @Apache::londefdef::table, $aa; 
+		$Apache::londefdef::table[-1]{'row_number'} = -1;
+		$Apache::londefdef::table[-1]{'output'} = '\begin{tabular} ';
 		my $border = &Apache::lonxml::get_param('border',$parstack,$safeeval);
 		unless (defined $border) { $border = 0; }
 		if ($border) { 
-		    $Apache::londefdef::table{'hinc'} = '\hline '; 
-		    $Apache::londefdef::table{'vinc'} = '&'; 
-		    $Apache::londefdef::table{'vvinc'} = '|';
+		    $Apache::londefdef::table[-1]{'hinc'} = '\hline '; 
+		    $Apache::londefdef::table[-1]{'vinc'} = '&'; 
+		    $Apache::londefdef::table[-1]{'vvinc'} = '|';
 		} else {
-		    $Apache::londefdef::table{'hinc'} = ''; 
-		    $Apache::londefdef::table{'vinc'} = ''; 
-		    $Apache::londefdef::table{'vvinc'} = '';
+		    $Apache::londefdef::table[-1]{'hinc'} = ''; 
+		    $Apache::londefdef::table[-1]{'vinc'} = ''; 
+		    $Apache::londefdef::table[-1]{'vvinc'} = '';
 		}
 	    } 
 	   return $currentstring;
@@ -1284,17 +1289,29 @@ EDITBUTTON
             if ($target eq 'web') {
               $currentstring = $token->[2];     
 	    } elsif ($target eq 'tex') {
+		my $inmemory = '';
 		my $output = '';
-		my $header_of_table = '{'.$Apache::londefdef::table{'vvinc'};
+		my $header_of_table = '{'.$Apache::londefdef::table[-1]{'vvinc'};
 		my $in;
-		for ($in=0;$in<$Apache::londefdef::table{'counter_columns'};$in++) {
-		    $header_of_table .= @{ $Apache::londefdef::table{'columns'} }[$in].$Apache::londefdef::table{'vvinc'};
-		    $output .=  $Apache::londefdef::table{'rowdata'}[$in];
+		for ($in=0;$in<=$Apache::londefdef::table[-1]{'counter_columns'};$in++) {
+		    $header_of_table .= $Apache::londefdef::table[-1]{'columns'}[$in].$Apache::londefdef::table[-1]{'vvinc'};
+		}
+		$header_of_table .= '}';
+		for ($in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
+		    $output .=  $Apache::londefdef::table[-1]{'rowdata'}[$in];
 		    chop $output;
 		    $output .= ' \\\\ ';
 		}
-		$header_of_table .= '}';
-		$currentstring .= '\begin{tabular}'.$header_of_table.$output.$Apache::londefdef::table{'hinc'}.'\end{tabular}';
+		$Apache::londefdef::table[-1]{'output'} .= $header_of_table.$output.$Apache::londefdef::table[-1]{'hinc'}.'\end{tabular}';
+		if ($#Apache::londefdef::table > 0) {
+		    $inmemory = $Apache::londefdef::table[-1]{'output'};
+		    pop @Apache::londefdef::table;
+		    $Apache::londefdef::table[-1]{'rowdata'}[$Apache::londefdef::table[-1]{'row_number'}] .= $inmemory;
+		} else {
+		    $currentstring = $Apache::londefdef::table[-1]{'output'};
+		    $currentstring =~ s/\\\\\s+\\\\/\\\\/g; 
+		    pop @Apache::londefdef::table;
+		}
 	    }
 	   return $currentstring;
 	}
@@ -1305,13 +1322,15 @@ EDITBUTTON
             if ($target eq 'web') {
               $currentstring = $token->[4];     
 	    } elsif ($target eq 'tex') {
-		if (substr(&Apache::lonxml::get_param('align',$parstack,$safeeval),0,1) ne '') {
-		    push @ {$Apache::londefdef::table{'rows'} }, substr(&Apache::lonxml::get_param('align',$parstack,$safeeval),0,1);
+		$Apache::londefdef::table[-1]{'row_number'}++;
+		my $alignchar = substr(&Apache::lonxml::get_param('align',$parstack,$safeeval),0,1);
+		if ($alignchar ne '') {
+		    push @ {$Apache::londefdef::table[-1]{'rows'} }, $alignchar;
 		} else {
-		    push @ {$Apache::londefdef::table{'rows'} }, 'c';
+		    push @ {$Apache::londefdef::table[-1]{'rows'} }, 'c';
 		}
-		push ( @{ $Apache::londefdef::table{'rowdata'} }, $Apache::londefdef::table{'hinc'});
-		$Apache::londefdef::table{'counter_columns'} = 0;
+		push ( @{ $Apache::londefdef::table[-1]{'rowdata'} }, $Apache::londefdef::table[-1]{'hinc'});
+		$Apache::londefdef::table[-1]{'counter_columns'} = -1;
 
 	    } 
 	   return $currentstring;
@@ -1322,6 +1341,7 @@ EDITBUTTON
             if ($target eq 'web') {
 		$currentstring = $token->[2];     
 	    } elsif ($target eq 'tex') {
+#		$currentstring .= ' START ROW '. $Apache::londefdef::table[-1]{'rowdata'}[$Apache::londefdef::table[-1]{'row_number'}].' END ROW ';
 	    }
 	   return $currentstring;
 	}
@@ -1334,10 +1354,10 @@ EDITBUTTON
 	    } elsif ($target eq 'tex') {
 		my $what_to_push = substr(&Apache::lonxml::get_param('align',$parstack,$safeeval),0,1);
 		if ($what_to_push eq '') {
-		    $what_to_push = substr($Apache::londefdef::table{'rows'}[0],0,1);;
+		    $what_to_push = substr($Apache::londefdef::table[-1]{'rows'}[0],0,1);;
 		}
-		    push @{ $Apache::londefdef::table{'columns'} }, $what_to_push;
-		$Apache::londefdef::table{'counter_columns'}++;
+		    push @{ $Apache::londefdef::table[-1]{'columns'} }, $what_to_push;
+		$Apache::londefdef::table[-1]{'counter_columns'}++;
 		&Apache::lonxml::startredirection();
 ;
 	    } 
@@ -1349,9 +1369,9 @@ EDITBUTTON
             if ($target eq 'web') {
 		$currentstring = $token->[2];     
 	    } elsif ($target eq 'tex') {
-		my $current_row = $#{ $Apache::londedef::table{'rows'} };
+		my $current_row = $Apache::londefdef::table[-1]{'row_number'};
 		my $data=&Apache::lonxml::endredirection();
-		@{ $Apache::londefdef::table{'rowdata'} }[$current_row] .= $data.' '.$Apache::londefdef::table{'vinc'};
+		@{ $Apache::londefdef::table[-1]{'rowdata'} }[$current_row] .= $data.' '.$Apache::londefdef::table[-1]{'vinc'};
 	    }
 	   return $currentstring;
 	}