--- loncom/xml/londefdef.pm	2003/04/11 18:25:03	1.125
+++ loncom/xml/londefdef.pm	2003/05/21 14:57:31	1.134
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # Tags Default Definition Module 
 #
-# $Id: londefdef.pm,v 1.125 2003/04/11 18:25:03 sakharuk Exp $
+# $Id: londefdef.pm,v 1.134 2003/05/21 14:57:31 sakharuk Exp $
 # 
 #
 # Copyright Michigan State University Board of Trustees
@@ -1182,20 +1182,30 @@ sub end_small {
 
 #-- <basefont> tag
 sub start_basefont {
-    my ($target,$token) = @_;
+    my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
     my $currentstring = '';
     if ($target eq 'web') {
 	$currentstring = $token->[4];     
-    } 
+    } elsif ($target eq 'tex') {
+	my $basesize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval);
+	if (defined $basesize) {
+	    $currentstring = '{\\'.$basesize.' ';
+	}
+    }
     return $currentstring;
 }
 
 sub end_basefont {
-    my ($target,$token) = @_;
+    my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
     my $currentstring = '';
     if ($target eq 'web') {
 	$currentstring = $token->[4];     
-    } 
+    } elsif ($target eq 'tex') {
+	my $basesize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval);
+	if (defined $basesize) {
+	    $currentstring = '}';
+	}
+    }
     return $currentstring;
 }
 
@@ -1207,7 +1217,12 @@ sub start_font {
 	my $face=&Apache::lonxml::get_param('face',$parstack,$safeeval);
 	if ($face=~/symbol/i) {$Apache::lonxml::prevent_entity_encode++;}
 	$currentstring = $token->[4];     
-    } 
+    }  elsif ($target eq 'tex') {
+	my $fontsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval);
+	if (defined $fontsize) {
+	    $currentstring = '{\\'.$fontsize.' ';
+	}
+    }
     return $currentstring;
 }
 
@@ -1218,7 +1233,12 @@ sub end_font {
 	my $face=&Apache::lonxml::get_param('face',$parstack,$safeeval);
 	if ($face=~/symbol/i) {$Apache::lonxml::prevent_entity_encode--;}
 	$currentstring = $token->[2];    
-    } 
+    }  elsif ($target eq 'tex') {
+	my $fontsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval);
+	if (defined $fontsize) {
+	    $currentstring = '}';
+	}
+    }
     return $currentstring;
 }
  
@@ -1676,6 +1696,14 @@ sub end_dd {
 #-- <table> tag
 sub start_table {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
+    my $textwidth;
+    if (not defined @Apache::londefdef::table) {
+	$textwidth=&recalc($ENV{'form.textwidth'});
+	$textwidth=~/(\d+)/;
+	$textwidth=$1;
+    } else {
+	$textwidth=&Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
+    }
     my $currentstring = '';
     if ($target eq 'web') {
 	$currentstring = $token->[4];     
@@ -1683,7 +1711,25 @@ sub start_table {
 	my $aa = {};
 	push @Apache::londefdef::table, $aa; 
 	$Apache::londefdef::table[-1]{'row_number'} = -1;
-	$Apache::londefdef::table[-1]{'output'} = ' \noindent \begin{tabular} ';
+        #table's width
+	my $TeXwidth = &Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
+	if (not defined $TeXwidth) {
+	    my $htmlwidth = &Apache::lonxml::get_param('width',$parstack,$safeeval,undef,1);
+	    if ($htmlwidth=~/%/) {
+		$htmlwidth=~/(\d+)/;
+		my $value=$1*$textwidth/100;
+		$Apache::londefdef::table[-1]{'width'}=$value;
+	    } else {
+		$Apache::londefdef::table[-1]{'width'}=$textwidth;
+	    }
+	} elsif ($TeXwidth=~/%/) {
+	    $TeXwidth=~/(\d+)/;
+	    my $value=$1*$textwidth/100;
+            $Apache::londefdef::table[-1]{'width'}=$value;
+	} else {
+	    $Apache::londefdef::table[-1]{'width'}=$textwidth;
+	}        
+        #table's border
 	my $border = &Apache::lonxml::get_param('border',$parstack,$safeeval,undef,1); 
 	unless (defined $border) { $border = 0; }
 	if ($border) { 
@@ -1695,13 +1741,8 @@ sub start_table {
 	    $Apache::londefdef::table[-1]{'vinc'} = '&'; 
 	    $Apache::londefdef::table[-1]{'vvinc'} = '';
 	}
-	my $width;
-	foreach my $key (keys(%{$token->[2]})) {
-	    if ($key =~ /^width$/i) {
-		$width = &Apache::lonxml::get_param($key,$parstack,$safeeval,undef,1);
-	    }
-	}
-	if (defined($width)) { $Apache::londefdef::table[-1]{'width'}=$width; }
+	$Apache::londefdef::table[-1]{'output'} = ' \noindent \begin{tabular} ';
+	$currentstring = '\keephidden{NEW TABLE ENTRY '.$textwidth.'}';
     }
     return $currentstring;
 }
@@ -1716,107 +1757,69 @@ sub end_table {
 	my $output = '';
 	#construct header of the table
 	my $header_of_table = '{'.$Apache::londefdef::table[-1]{'vvinc'};
-	my $in;
-	for ($in=0;$in<=$Apache::londefdef::table[-1]{'counter_columns'};$in++) {
+	for (my $in=0;$in<=$Apache::londefdef::table[-1]{'counter_columns'};$in++) {
 	    $header_of_table .= $Apache::londefdef::table[-1]{'columns'}[$in].$Apache::londefdef::table[-1]{'vvinc'};
 	}
 	$header_of_table .= '}';
-	#fill the table
-	for ($in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
-	    $output .=  $Apache::londefdef::table[-1]{'rowdata'}[$in];
-	    chop $output;
-	    $output .= ' \\\\ ';
-	}
 	#define the length of the table cells
-	my @lengthforoutput = split(/,/,$Apache::londefdef::table[-1]{'lengthrow'}[0]);
-	my $how_many_columns = $#lengthforoutput + 1; #total number of columns in the table 
-	my $filled_columns = 0; #number of columns with information about width
-	my $available_space = ' ';
-	foreach my $tempo_length (@{ $Apache::londefdef::table[-1]{'lengthrow'} }) {
-	    my @length = split(/,/,$tempo_length);
-	    for (my $ico=0;$ico<=$#lengthforoutput;$ico++) {
-		$lengthforoutput[$ico] =~ m/(\d*\.?\d*)\s*(\w+)/;
-		my $old_value = $1;
-		my $old_unit = $2; 
-		if ($old_unit eq 'cm') { 
-		    $old_value = $old_value * 10;
-		} elsif ($old_unit eq 'in') { 
-		    $old_value = $old_value * 25.4;
-		} elsif ($old_unit eq 'pt') {
-		    $old_value = $old_value * 25.4/72.27;
-		} elsif ($old_unit eq 'pc') {
-		    $old_value = $old_value * 25.4/6.022;
-		}
-		$old_unit = 'mm';
-		$length[$ico] =~ m/(\d*\.?\d*)\s*(\w+)/;
-		my $new_value = $1;
-		my $new_unit = $2;
-		if ($new_unit eq 'cm') { 
-		    $new_value = $new_value * 10;
-		} elsif ($old_unit eq 'in') { 
-		    $new_value = $new_value * 25.4;
-		} elsif ($old_unit eq 'pt') {
-		    $new_value = $new_value * 25.4/72.27;
-		} elsif ($old_unit eq 'pc') {
-		    $new_value = $new_value * 25.4/6.022;
-		}
-		$new_unit = 'mm';
-		if ($old_value < $new_value) {
-		    $lengthforoutput[$ico] = $new_value.' mm';
-		} else {
-		    $lengthforoutput[$ico] = $old_value.' mm';
+	#always starts with TeXwidth (if defined everything else is ignored)
+	my @length_row_final = split(/,/,$Apache::londefdef::table[-1]{'TeXlengthrow'}[0]);
+	for (my $in=1;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
+	    my @length_row = split(/,/,$Apache::londefdef::table[-1]{'TeXlengthrow'}[$in]);
+	    for (my $jn=0;$jn<=$#length_row;$jn++) {
+		if ($length_row_final[$jn]<$length_row[$jn]) {$length_row_final[$jn]=$length_row[$jn];}
+	    }
+	}
+	#continues trying estimate the width of raw data
+	my @length_raw_row = split(/,/,$Apache::londefdef::table[-1]{'lengthrow'}[0]);
+	for (my $in=1;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
+	    my @length_row = split(/,/,$Apache::londefdef::table[-1]{'lengthrow'}[$in]);
+	    for (my $jn=0;$jn<=$#length_row;$jn++) {
+		if ($length_raw_row[$jn]<$length_row[$jn]) {$length_raw_row[$jn]=$length_row[$jn];}
+	    }
+	}
+        #comparing of TeXwidth and raw data width
+	my $available_length=$Apache::londefdef::table[-1]{'width'};
+	my $needed=0;
+	for (my $jn=0;$jn<=$#length_row_final;$jn++) {
+	    if ($length_row_final[$jn]!=0) {
+		$available_length=$available_length-$length_row_final[$jn];
+		$needed++;
+	    }
+	}
+	$needed=$#length_row_final-$needed+1;
+	for (my $jn=0;$jn<=$#length_row_final;$jn++) {
+	    if ($length_row_final[$jn]==0) {
+		if ($length_raw_row[$jn]<$available_length/3) {
+		    $length_row_final[$jn]=$length_raw_row[$jn];
+		    $available_length=$available_length-$length_raw_row[$jn];
+		    $needed--;
 		}
 	    }
 	}
-	for (my $ico=0;$ico<=$#lengthforoutput;$ico++) {
-	    if (not $lengthforoutput[$ico]=~m/^\s*0\s*\w*\s*$/) {
-		$filled_columns++;
-		$available_space = $available_space.' - '.$lengthforoutput[$ico];
+	for (my $jn=0;$jn<=$#length_row_final;$jn++) {
+	    if ($length_row_final[$jn]==0) {
+		$length_row_final[$jn]=0.9*$available_length/$needed;
 	    }
 	}
-	my $temp_file;
-	my $filename = "/home/httpd/prtspool/$ENV{'user.name'}_$ENV{'user.domain'}_printout.tbl";
-	if (-e $filename) {
-	    $temp_file = Apache::File->new($filename); 
-	    my @tbl_file_content = <$temp_file>;
-	    my ($one,$two,$three) = split(/,/,$tbl_file_content[0]);
-	    $how_many_columns+=$one-1;
-	    $filled_columns+=$two;
-	    if($three=~/\S/) {$available_space = $available_space.' - '.$three;}
-	} else {
-	    $temp_file = Apache::File->new('>>'.$filename); 
-	}		
-	print $temp_file "$how_many_columns,$filled_columns,$available_space\n";
-	$output =~ s/\\parbox{TOBECHANGEDONNUMBER}{}/\\parbox{1 mm}{}/g;
-	$output =~ s/\\parbox{TOBECHANGEDONNUMBER}/\\parbox{\$SpacePerColumn}/g;
-	my @tagar = @$tagstack;
-	my $signature = 1;
-	for (my $ico=0;$ico<$#tagar;$ico++) {
-	    if ($tagar[$ico] eq 'table') { $signature = 0; }
-	}
-	if ($signature) {
-	    my $NumberEmptyLength = $how_many_columns - $filled_columns;		
-	    my $SpacePerColumn = '(\textwidth '.$available_space.')/'.$NumberEmptyLength;
-	    my $shorthand = ($filled_columns+1)*4;
-	    $output =~ s/\$SpacePerColumn/$SpacePerColumn - $shorthand mm/g;
-	}	
-	if ($how_many_columns==1) {
-	    #start of block with width correction for one column table
-	    $output=~s/^\s*\\parbox\{([^\}]*)\}/\\parbox\{\\textwidth - 1 cm\}/;
-	    #end of block with width correction for one column table
+	#fill the table
+	for (my $in=0;$in<=$Apache::londefdef::table[-1]{'row_number'};$in++) {
+	    for (my $jn=0;$jn<=$#length_row_final;$jn++) {
+		my $substituted=$length_row_final[$jn];
+		$Apache::londefdef::table[-1]{'rowdata'}[$in]=~s/TOBECHANGEDONNUMBER/$substituted mm/;
+	    }
+	    $output .=  $Apache::londefdef::table[-1]{'rowdata'}[$in];
+	    chop $output;
+	    $output .= ' \\\\ ';
 	}
 	$Apache::londefdef::table[-1]{'output'} .= $header_of_table.$output.$Apache::londefdef::table[-1]{'hinc'}.'\end{tabular}\vskip 0 mm ';
-	if ($#Apache::londefdef::table > 0) {
-	    $inmemory = $Apache::londefdef::table[-1]{'output'};
+	if ($#Apache::londefdef::table > 0) {	    
+	    my $inmemory = $Apache::londefdef::table[-1]{'output'};
 	    pop @Apache::londefdef::table;
-	    $Apache::londefdef::table[-1]{'rowdata'}[$Apache::londefdef::table[-1]{'row_number'}] .= $inmemory
+	    push @{$Apache::londefdef::table[-1]{'include'}}, $inmemory;
 	} else {
-	    $currentstring = $Apache::londefdef::table[-1]{'output'};
-	    $currentstring =~ s/\\\\\s+\\\\/\\\\/g; 
+	    $currentstring .= $Apache::londefdef::table[-1]{'output'};
 	    pop @Apache::londefdef::table;
-	    if (-e $filename) {
-		unlink $filename;
-	    }
 	}
     }
     return $currentstring;
@@ -1838,7 +1841,8 @@ sub start_tr {
 	}
 	push ( @{ $Apache::londefdef::table[-1]{'rowdata'} }, $Apache::londefdef::table[-1]{'hinc'});
 	$Apache::londefdef::table[-1]{'counter_columns'} = -1;
-	$Apache::londefdef::table[-1]{'length'} = ''; 
+	$Apache::londefdef::table[-1]{'TeXlength'} = '';
+ 	$Apache::londefdef::table[-1]{'length'} = '';
     } 
     return $currentstring;
 }
@@ -1849,8 +1853,8 @@ sub end_tr {
     if ($target eq 'web') {
 	$currentstring = $token->[2];     
     } elsif ($target eq 'tex') {
+	push @{ $Apache::londefdef::table[-1]{'TeXlengthrow'} },$Apache::londefdef::table[-1]{'TeXlength'};
 	push @{ $Apache::londefdef::table[-1]{'lengthrow'} },$Apache::londefdef::table[-1]{'length'};
-	
     }
     return $currentstring;
 }
@@ -1874,27 +1878,39 @@ sub start_td {
 }   
      
 sub end_td {
-    my ($target,$token) = @_;
+    my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
     my $currentstring = '';
-    my $tempolen = '';
     if ($target eq 'web') {
 	$currentstring = $token->[2];     
     } elsif ($target eq 'tex') {
 	my $current_row = $Apache::londefdef::table[-1]{'row_number'};
 	my $data=&Apache::lonxml::endredirection();
-	if ($data=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt))/) {
-	    $Apache::londefdef::table[-1]{'length'} .= $1.',';
-	    $tempolen = $1;         
+	my $TeXwidth=&Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
+	if (defined $TeXwidth) {		
+	    my $current_length=&recalc($TeXwidth);
+	    $current_length=~/(\d+)/;
+	    $Apache::londefdef::table[-1]{'TeXlength'} .= $1.',';
+	    $Apache::londefdef::table[-1]{'length'} .= '0,';
 	} else {
-	    if (length($data)<5) {
-		$Apache::londefdef::table[-1]{'length'} .= '0 mm,';
-		$tempolen = '6 mm';
-	    } else {
-		$Apache::londefdef::table[-1]{'length'} .= '0 mm,';
-		$tempolen = 'TOBECHANGEDONNUMBER';
-	    }
-	}                                        
-	@{ $Apache::londefdef::table[-1]{'rowdata'} }[$current_row] .= '\parbox{'.$tempolen.'}{'.$data.'} '.$Apache::londefdef::table[-1]{'vinc'};
+	    if ($data=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) {
+		my $current_length=&recalc($1);
+		$current_length=~/(\d+\.?\d*)/;
+		$Apache::londefdef::table[-1]{'TeXlength'} .= $1.',';
+		$Apache::londefdef::table[-1]{'length'} .= '0,';
+	    } else {     
+		$data=~/^\s*(\S.*)/;
+		$data=$1;
+		$data=~/(.*\S)\s*$/;
+		$data=$1;
+		my $current_length=2*length($data);
+		$Apache::londefdef::table[-1]{'length'} .= $current_length.',';
+		$Apache::londefdef::table[-1]{'TeXlength'} .= '0,';
+	    }        
+	}
+	for (my $in=0; $in<=$#{$Apache::londefdef::table[-1]{'include'}};$in++) {                                
+	    $data=~s/\\keephidden\{NEW TABLE ENTRY\}/$Apache::londefdef::table[-1]{'include'}[$in]/;
+	}
+	@{ $Apache::londefdef::table[-1]{'rowdata'} }[$current_row] .= '\parbox{TOBECHANGEDONNUMBER}{'.$data.'} '.$Apache::londefdef::table[-1]{'vinc'};
     }
     return $currentstring;
 }
@@ -1913,29 +1929,48 @@ sub start_th {
 	push @{ $Apache::londefdef::table[-1]{'columns'} }, $what_to_push;
 	$Apache::londefdef::table[-1]{'counter_columns'}++;
 	&Apache::lonxml::startredirection();
-	;
     } 
     return $currentstring;
-}
-        
+}   
+     
 sub end_th {
-    my ($target,$token) = @_;
+    my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
     my $currentstring = '';
     if ($target eq 'web') {
 	$currentstring = $token->[2];     
     } elsif ($target eq 'tex') {
 	my $current_row = $Apache::londefdef::table[-1]{'row_number'};
 	my $data=&Apache::lonxml::endredirection();
-	if ($data=~m/width\s*=\s*(\d+\.*\d*\s*(mm|cm))/) {                 
-	    $Apache::londefdef::table[-1]{'length'} .= $1.',';             
+	my $TeXwidth=&Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
+	if (defined $TeXwidth) {		
+	    my $current_length=&recalc($TeXwidth);
+	    $current_length=~/(\d+)/;
+	    $Apache::londefdef::table[-1]{'TeXlength'} .= $1.',';
+	    $Apache::londefdef::table[-1]{'length'} .= '0,';
 	} else {
-	    $Apache::londefdef::table[-1]{'length'} .= '0 mm,'; 
-	}                                                           
-	@{ $Apache::londefdef::table[-1]{'rowdata'} }[$current_row] .= '\parbox{'.$1.'}{\textbf{'.$data.'}} '.$Apache::londefdef::table[-1]{'vinc'};
+	    if ($data=~m/width\s*=\s*(\d+\.?\d*\s*(mm|cm|in|pc|pt)*)/) {
+		my $current_length=&recalc($1);
+		$current_length=~/(\d+)/;
+		$Apache::londefdef::table[-1]{'TeXlength'} .= $1.',';
+		$Apache::londefdef::table[-1]{'length'} .= '0,';
+	    } else {     
+		$data=~/^\s*(\S.*)/;
+		$data=$1;
+		$data=~/(.*\S)\s*$/;
+		$data=$1;
+		my $current_length=2*length($data);
+		$Apache::londefdef::table[-1]{'length'} .= $current_length.',';
+		$Apache::londefdef::table[-1]{'TeXlength'} .= '0,';
+	    }        
+	}
+	for (my $in=0; $in<=$#{$Apache::londefdef::table[-1]{'include'}};$in++) {                                
+	    $data=~s/\\keephidden\{NEW TABLE ENTRY\}/$Apache::londefdef::table[-1]{'include'}[$in]/;
+	}
+	$data='\textbf{'.$data.'}';
+	@{ $Apache::londefdef::table[-1]{'rowdata'} }[$current_row] .= '\parbox{TOBECHANGEDONNUMBER}{'.$data.'} '.$Apache::londefdef::table[-1]{'vinc'};
     }
     return $currentstring;
 }
-
 #-- <img> tag
 sub start_img {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
@@ -2189,7 +2224,29 @@ sub start_frameset {
 	    $currentstring.='<head>'.
 		&Apache::lonmenu::registerurl(undef,$target).'</head>';
 	}
-	$currentstring .= $token->[4];
+	my $onLoad='';
+	foreach my $key (keys(%{$token->[2]})) {
+	    if ($key =~ /^onload$/i) {
+		$onLoad.=$token->[2]->{$key}.';';
+		delete($token->[2]->{$key});
+	    }
+	}
+	$token->[2]->{'onload'}=&Apache::lonmenu::loadevents().';'.$onLoad;
+	my $onUnload='';
+	foreach my $key (keys(%{$token->[2]})) {
+	    if ($key =~ /^onunload$/i) {
+		$onUnload.=$token->[2]->{$key}.';';
+		delete($token->[2]->{$key});
+	    }
+	}
+	$token->[2]->{'onunload'}=&Apache::lonmenu::unloadevents().
+	    ';'.$onUnload;
+	
+	$currentstring .= '<'.$token->[1];
+	foreach (keys %{$token->[2]}) {
+	    $currentstring.=' '.$_.'="'.$token->[2]->{$_}.'"';
+	}
+	$currentstring.='>';
     }
     return $currentstring;
 }
@@ -2205,12 +2262,14 @@ sub end_frameset {
 
 #-- <pre>
 sub start_pre {
-    my ($target,$token) = @_;
+    my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
     my $currentstring = '';
     if ($target eq 'web') {
 	$currentstring .= $token->[4];
     } elsif ($target eq 'tex') {
-	$currentstring .= '\begin{verbatim}';
+	my $width = &Apache::lonxml::get_param('TeXwidth',$parstack,$safeeval,undef,0);
+	if (not defined $width) {$width ='\textwidth';}
+	$currentstring .= '\parbox['.$width.']{\begin{verbatim}';
     } 
     return $currentstring;
 }
@@ -2221,7 +2280,7 @@ sub end_pre {
     if ($target eq 'web') {
 	$currentstring .= $token->[2];
     } elsif ($target eq 'tex') {
-	$currentstring .= '\end{verbatim}';
+	$currentstring .= '\end{verbatim}}';
     }
     return $currentstring;
 }
@@ -3065,6 +3124,26 @@ sub end_wbr {
     return $currentstring;
 }
 
+
+#-- <hideweboutput> tag
+sub start_hideweboutput {
+    my ($target,$token) = @_;
+    if ($target eq 'web') {
+	&Apache::lonxml::startredirection();     
+    } 
+    return '';
+}
+
+sub end_hideweboutput {
+    my ($target,$token) = @_;
+    my $currentstring = '';
+    if ($target eq 'web') {
+	$currentstring = &Apache::lonxml::endredirection();    
+    } 
+    return '';
+}
+
+
 sub image_replication {
     my $src = shift;
     if (not -e $src) {
@@ -3083,5 +3162,23 @@ sub image_replication {
     return '';
 }
 
+sub recalc {
+    my $argument = shift;
+    if (not $argument=~/(mm|cm|in|pc|pt)/) {return $argument.' mm';}
+    $argument=~/\s*(\d+\.?\d*)\s*(mm|cm|in|pc|pt)/;
+    my $value=$1;
+    my $units=$2;
+    if ($units eq 'cm') {
+	$value*=10;
+    } elsif ($units eq 'in') {
+	$value*=25.4;
+    } elsif ($units eq 'pc') {
+	$value*=(25.4*12/72.27);
+    } elsif ($units eq 'pt') {
+	$value*=(25.4/72.27);
+    }
+    return $value.' mm';
+}
+
 1;
 __END__