--- loncom/interface/printout.pl	2006/10/30 11:40:49	1.111
+++ loncom/interface/printout.pl	2008/03/11 01:48:57	1.132
@@ -1,6 +1,7 @@
 #!/usr/bin/perl
 # CGI-script to run LaTeX, dvips, ps2ps, ps2pdf etc.
 #
+# $Id: printout.pl,v 1.132 2008/03/11 01:48:57 www Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -38,9 +39,11 @@ use Apache::loncommon();
 use Apache::lonlocal;
 use Apache::lonmsg();
 use LONCAPA::Enrollment;
+use LONCAPA::Configuration;
 
 use strict;
 
+my $busy_wait_timeout = 30; 
 
 #   Determine if a user is operating as a student for this course/domain.
 #Parameters:
@@ -127,8 +130,8 @@ sub send_error_mail {
 	    foreach my $line (@$texfile) {
 		$message .= "$line\n";
 	    }
-	    my (undef, %receivers) = &Apache::lonfeedback::decide_receiver(undef, 0,
-									  1,1,1);
+	    my (undef, %receivers) = &Apache::lonmsg::decide_receiver(undef, 0,
+								      1,1,1);
 	    # print "<br /> sending...section:  $env{'request.course.sec'}";
 	    foreach my $dest (keys %receivers) {
 		# print "<br /> dest is $dest";
@@ -160,9 +163,11 @@ Your cookie information is incorrect.
 END
     return;
 }
+
+my %perlvar=%{&LONCAPA::Configuration::read_conf('loncapa.conf')};
  &Apache::lonlocal::get_language_handle();
  &Apache::loncommon::content_type(undef,'text/html');
-
+$env{'request.noversionuri'} = '/cgi-bin/printout.pl';
   print(&Apache::loncommon::start_page('Creating PDF'));
 
   my $identifier = $ENV{'QUERY_STRING'};
@@ -183,13 +188,14 @@ END
   if ($student_names=~/_END_/) {  
       @names_pack=split(/_ENDPERSON_/,$student_names);
   }
-
-print "<a href=\"$backref\"><b>Return</b></a> to last resource.<br /><br />";
-
+  if ($backref) {
+      print('<p>'.&mt("[_1]Return[_2] to editing resource.",
+		      "<a href=\"$backref\"><b>","</b></a>").'</p>');
+  }
   my $figfile = $texfile;
-  $figfile =~ s/^([^\.]+printout)[^t]+\.tex/$1\.dat/;
+  $figfile =~ s/^(.*_printout)_\d+_\d+_\d+\.tex/$1\.dat/;
   my $duefile = $texfile;
-  $duefile =~ s/^([^\.]+printout)[^t]+\.tex/$1\.due/;
+  $duefile =~ s/^(.*_printout)_\d+_\d+_\d+\.tex/$1\.due/;
   #do we have figures?
   # print "Figure file: $figfile\n";
   if (-e $figfile) {
@@ -200,12 +206,12 @@ print "<a href=\"$backref\"><b>Return</b
       close $temporary_file;  
       my $noteps;
       my %prog_state;
-      if ($advanced_role) { %prog_state=&Apache::lonhtmlcommon::Create_PrgWin('','Coverting Images to EPS','Picture Conversion Status',$#content_of_file,'inline','80');  }
+      if ($advanced_role) { %prog_state=&Apache::lonhtmlcommon::Create_PrgWin('','Converting Images to EPS','Picture Conversion Status',$#content_of_file,'inline','80');  }
       print('<br />');
       foreach my $not_eps (@content_of_file) {
 	  chomp($not_eps);
 	  if ($not_eps ne '') {
-	      # print "Converting $not_eps"; # Debugging.
+	       # print "Converting $not_eps"; # Debugging.
               my $status_statement='EPS picture for '.$not_eps;
 	      # print "$status_statement\n";
 	      $not_eps=~s|\/\.\/|\/|g;
@@ -213,13 +219,13 @@ print "<a href=\"$backref\"><b>Return</b
 	      # $eps_f =~ s/\.[^.]*$/\.eps/i;
 	      if ($eps_f=~/\/home\/([^\/]+)\/public_html\//) {
                   $eps_f=~s/\/home\/([^\/]+)\/public_html/$1/;
-		  $eps_f = '/home/httpd/prtspool/'.$eps_f;
-	      } elsif ($eps_f=~/$Apache::lonnet::perlvar{'lonDocRoot'}\/res\//) {
-		  $eps_f=~m/$Apache::lonnet::perlvar{'lonDocRoot'}\/res\/(.+)/;
-		  $eps_f = '/home/httpd/prtspool/'.$1;
-	      } elsif ($eps_f=~/$Apache::lonnet::perlvar{'lonUsersDir'}\//) {
-		  $eps_f=~/$Apache::lonnet::perlvar{'lonUsersDir'}\/([^\/]+)\/\w\/\w\/\w\/(.+)/;
-		  $eps_f = '/home/httpd/prtspool/'.$1.'/'.$2;
+		  $eps_f = $perlvar{'lonPrtDir'}.'/'.$eps_f;
+	      } elsif ($eps_f=~/$perlvar{'lonDocRoot'}\/res\//) {
+		  $eps_f=~m/$perlvar{'lonDocRoot'}\/res\/(.+)/;
+		  $eps_f = $perlvar{'lonPrtDir'}.'/'.$1;
+	      } elsif ($eps_f=~/$perlvar{'lonUsersDir'}\//) {
+		  $eps_f=~/$perlvar{'lonUsersDir'}\/([^\/]+)\/\w\/\w\/\w\/(.+)/;
+		  $eps_f = $perlvar{'lonPrtDir'}.'/'.$1.'/'.$2;
 	      }
 	      $eps_f  =~ s/ /\_/g; # Spaces are problematic for system commands and LaTeX.
 	      # 
@@ -227,20 +233,24 @@ print "<a href=\"$backref\"><b>Return</b
 	      # We really just need to copy it from where it was to prtspool
 	      # but with the spaces substituted to _'s.
 	      #
-	      my ($path, $nsname, $sext) = fileparse($eps_f, qr/\.(ps|eps)/i);
+	      my ($nsname,$path, $sext) = &fileparse($eps_f, qr/\.(ps|eps)/i);
 	      if ($sext =~/ps$/i) {
-		  File::Path::mkpath($path,0,0777);
-		  $not_eps =~ s/^\s+//;
-		  $not_eps =~ s/\s+$//;
-		  $not_eps =~ s/ /\__/g;
-		  File::Copy("$not_eps", "$eps_f"); 
+		  # print "$not_eps is a postscript file. copy to $path\n";
+		  &File::Path::mkpath($path,0,0777);
+		  #print("Made path: $path");
+		  #$not_eps =~ s/^\s+//;
+		  #$not_eps =~ s/\s+$//;
+		  #$not_eps =~ s/ /\__/g;
+		  #print("Copying $not_eps to $eps_f\n");
+		  copy("$not_eps", "$eps_f"); 
+		  # print "Copy complete\n";
 	      } else {
 	      
 		  $eps_f .= '.eps';	# Just append the eps ext.
 		  my $path=$eps_f;
 		  $path =~ s/\/([^\/]+)\.eps$//;
 		  # print "Final file path: $path "; # Debugging
-		  File::Path::mkpath($path,0,0777);
+		  &File::Path::mkpath($path,0,0777);
 		  $not_eps =~ s/^\s+//;
 		  $not_eps =~ s/\s+$//;
 		  $not_eps =~ s/ /\\ /g;
@@ -248,7 +258,7 @@ print "<a href=\"$backref\"><b>Return</b
 		  if ($advanced_role) {
 		      my $prettyname=$not_eps;
 		      $prettyname=~s|/home/([^/]+)/public_html|/priv/$1|;
-		      $prettyname=~s|$Apache::lonnet::perlvar{'lonDocRoot'}/|/|;
+		      $prettyname=~s|$perlvar{'lonDocRoot'}/|/|;
 		      &Apache::lonhtmlcommon::Update_PrgWin('',\%prog_state,
 							    'Converting to EPS '.$prettyname);
 		  }
@@ -367,17 +377,17 @@ foreach $texfile (@texfile) {
       my $name_file = $2;
       my $path_file = $1.'/';
       chdir $path_file;
-      my $dvi_file= $name_file; $dvi_file =~ s/\.tex/$name_range\.dvi/;
+      my $dvi_file= $name_file; $dvi_file =~ s/\.tex$/\.dvi/;
       &busy_wait_command("latex $name_file 1>/dev/null 2>/dev/null",
 			 "for $status_statement now LaTeXing file",
-			 \%prog_state,$dvi_file);
+			 \%prog_state,$dvi_file, $busy_wait_timeout);
       if ($tableofcontents eq 'yes') {
       &busy_wait_command("latex $name_file 1>/dev/null 2>/dev/null",
 			 "for $status_statement First LaTeX of file for table of contents",
-			 \%prog_state,$dvi_file);
+			 \%prog_state,$dvi_file, $busy_wait_timeout);
       &busy_wait_command("latex $name_file 1>/dev/null 2>/dev/null",
 			 "for $status_statement Second LaTeX of file for table of contents",
-			 \%prog_state,$dvi_file);
+			 \%prog_state,$dvi_file,$busy_wait_timeout);
       } #to create table of contents
       my $idxname=$name_file;
       $idxname=~s/\.tex$/\.idx/;
@@ -387,7 +397,7 @@ foreach $texfile (@texfile) {
 			     \%prog_state,$idxname);
 	  &busy_wait_command("latex $name_file 1>/dev/null 2>/dev/null",
 			     "for $status_statement now LaTeXing file for index section",
-			     \%prog_state,$dvi_file);
+			     \%prog_state,$dvi_file, $busy_wait_timeout);
       } #to create index
       #Do we have a latex error in the log file?
       my $logfilename = $texfile; $logfilename =~ s/\.tex$/\.log/;
@@ -436,10 +446,10 @@ foreach $texfile (@texfile) {
 	      print "</pre>\n";
 	      # print "<br /> Advanced role <br />";
               print "<b><big>The link to ";
-              $logfilename=~s/\/home\/httpd//;
+              $logfilename=~s{^\Q$perlvar{'lonPrtDir'}\E}{/prtspool};
 	      print "<a href=\"$logfilename\">Your log file </a></big></b>";
 	      print "\n";
-              #link tooriginal LaTeX file (included according Michael Hamlin desire)
+              #link to original LaTeX file
 	      my $tex_temporary_file=IO::File->new($texfile) || die "Couldn't open tex file $texfile for reading: $!\n";
 	      my @tex_content_of_file = <$tex_temporary_file>;
 	      close $tex_temporary_file; 
@@ -449,7 +459,7 @@ foreach $texfile (@texfile) {
 	      print $tex_temporary_file '<html><head><title>LOGFILE</title></head><body><pre>'.$body_tex_file.'</pre></body></html>'."\n";
 	      print "<br /><br />";
 	      print "<b><big>The link to ";
-	      $texfile=~s/\/home\/httpd//;
+              $texfile=~s{^\Q$perlvar{'lonPrtDir'}\E}{/prtspool};
 	      print "<a href=\"$texfile\">Your original LaTeX file </a></big></b>";
 	      print "\n";
 	      my $help_text = &Apache::loncommon::help_open_topic("Print_Resource", "Help on printing");
@@ -503,29 +513,64 @@ foreach $texfile (@texfile) {
 	      #
 	      &busy_wait_command("latex $latex_file 1>/dev/null 2>/dev/null",
 				 "for $status_statement first latex to repaginate",
-				 \%prog_state, $name_file);
+				 \%prog_state, $name_file,$busy_wait_timeout);
 	      if ($tableofcontents eq 'yes') {
 		  &busy_wait_command("latex $latex_file 1>/dev/null 2>/dev/null",
 				     "for $status_statement second latex to repaginate",
-				     \%prog_state, $name_file);
+				     \%prog_state, $name_file,$busy_wait_timeout);
 		  &busy_wait_command("latex $latex_file 1>/dev/null 2>/dev/null",
 				     "for $status_statement third latex to repaginate",
-				     \%prog_state, $name_file);
+				     \%prog_state, $name_file,$busy_wait_timeout);
 	      }
 	      if ($tableofindex eq 'yes') {
 		  my $idxname = $latex_file;
 		  $idxname =~ s/\.tex$/\.idx/;
-		  &busy_wait_command("makindex $idxname",
+		  &busy_wait_command("makeindex $idxname",
 				     "Re-creating index file",
 				     \%prog_state, $idxname);
 		  &busy_wait_command("latex $latex_file 1>/dev/null 2>/dev/null",
 				     "for $status_statement now Recreting index (latex)",
-				     \%prog_state, $dvi_file);
+				     \%prog_state, $dvi_file,$busy_wait_timeout);
 
 	      }
-	      &busy_wait_command("$comma $name_file 1>dev/null 2>/dev/null",
+	      &busy_wait_command("$comma $name_file 1>/dev/null 2>/dev/null",
 				 "for $status_statement dvips to repaginate",
 				 \%prog_state, $new_name_file);
+	      #
+	      #  One last little hinky kinky thing.
+	      #  It's just possible that some fonts could not be maded
+	      #  at the resolution of the pdf print driver.
+	      #  In that case a file called missfont.log will have been
+	      #  created that will contain the commands that were attempted
+	      # to create the missing fonts.  If we basically
+	      # take all the 8000 strings in that file, and
+	      # replace them with 600 (the ljfour resolution)
+	      # run the commands in that file and redvips,
+	      # we'll be able to print the missing glyphs at 600dpi.
+	      #
+	      # Supposedly it is possible to tune TeX/Metafont to do this
+	      # right but I failed to get that to work when following the
+	      # docs at the tug site, hence this rather kludgey fix.
+	      #
+	      #  We make the (I think) reasonable assumption that
+	      #  missing glyphs won't change the pagination and I think
+	      #  this is true because TeX/dvips will leave a space
+	      #  instead of these glyphs based on the font metrics
+	      #  (fancy way to say there will be a blank the size of the missing
+	      #  glyphs).
+	      #
+	      my $print_directory = dirname($name_file);
+	      my $missfonts_file  = $print_directory."/missfont.log";
+	      #print("<br /> Missing fonts file is: $missfonts_file");
+	      if (-e $missfonts_file) {
+		  #print("<br />Missing fonts file exists\n");
+		  &create_missing_fonts($missfonts_file,\%prog_state);
+		  &busy_wait_command("$comma $name_file 1>/dev/null 2>/dev/null",
+				     "for $status_statement dvips generated missing fonts",
+				     \%prog_state, $new_name_file);
+	      }
+
+	      #
 	      print "\n<h1>PDF output file (see link below)</h1>\n";
 	      $new_name_file =~ m/^(.*)\./;
 	      my $ps_file = my $tempo_file = $1.'temporar.ps';
@@ -564,16 +609,18 @@ foreach $texfile (@texfile) {
 	      $texps =~ s/\.tex/\.ps/;
 	      my @garb = ($texaux,$texdvi,$texps);
 #	  unlink @garb;
-	      unlink $duefile;
+	      unlink($duefile);
 	      print "<a href=\"/prtspool/$pdf_file\">Your PDF document</a>";
+	      unlink($missfonts_file);
+
 	  }
 	  if ($advanced_role) {  
 	      print "<br /><br />";
 	      print "<b><big>The link to ";
-	      $logfilename=~s/\/home\/httpd//;
+              $logfilename=~s{^\Q$perlvar{'lonPrtDir'}\E}{/prtspool};
 	      print "<a href=\"$logfilename\">Your log file </a></big></b>";
 	      print "\n";
-	      #link tooriginal LaTeX file (included according Michael Hamlin desire)
+	      #link to original LaTeX file
 	      my $tex_temporary_file=IO::File->new($texfile) || die "Couldn't open tex file $texfile for reading: $!\n";
 	      my @tex_content_of_file = <$tex_temporary_file>;
 	      close $tex_temporary_file; 
@@ -583,10 +630,11 @@ foreach $texfile (@texfile) {
 	      print $tex_temporary_file '<html><head><title>LOGFILE</title></head><body><pre>'.$body_tex_file.'</pre></body></html>'."\n";
 	      print "<br /><br />";
 	      print "<b><big>The link to ";
-	      $texfile=~s/\/home\/httpd//;
+              $texfile=~s{^\Q$perlvar{'lonPrtDir'}\E}{/prtspool};
 	      print "<a href=\"$texfile\">Your original LaTeX file </a></big></b>";
 	      print "\n";
 	  }
+
       } else {
 	  #LaTeX successfully parsed tex file 
 	  $name_file =~ s/\.tex/\.dvi/;
@@ -599,20 +647,53 @@ foreach $texfile (@texfile) {
 	  &busy_wait_command("$comma $name_file 1>/dev/null 2>/dev/null",
 			     "for $status_statement now Converting to PS",
 			     \%prog_state,$new_name_file);
+	  #
+	  #  One last little hinky kinky thing.
+	  #  It's just possible that some fonts could not be maded
+	  #  at the resolution of the pdf print driver.
+	  #  In that case a file called missfont.log will have been
+	  #  created that will contain the commands that were attempted
+	  # to create the missing fonts.  If we basically
+	  # take all the 8000 strings in that file, and
+	  # replace them with 600 (the ljfour resolution)
+	  # run the commands in that file and redvips,
+	  # we'll be able to print the missing glyphs at 600dpi.
+	  #
+	  # Supposedly it is possible to tune TeX/Metafont to do this
+	  # right but I failed to get that to work when following the
+	  # docs at the tug site, hence this rather kludgey fix.
+	  #
+	  #  We make the (I think) reasonable assumption that
+	  #  missing glyphs won't change the pagination and I think
+	  #  this is true because TeX/dvips will leave a space
+	  #  instead of these glyphs based on the font metrics
+	  #  (fancy way to say there will be a blank the size of the missing
+	  #  glyphs).
+	  #
+	  my $print_directory = dirname($name_file);
+	  my $missfonts_file  = $print_directory."/missfont.log";
+	  #print("<br /> Missing fonts file is: $missfonts_file");
+	  if (-e $missfonts_file) {
+	      #print("<br />Missing fonts file exists\n");
+	      &create_missing_fonts($missfonts_file,\%prog_state);
+	      &busy_wait_command("$comma $name_file 1>/dev/null 2>/dev/null",
+				 "for $status_statement dvips generated missing fonts",
+				 \%prog_state, $new_name_file);
+	  }
 	  if (-e $new_name_file) {
 	      my $latex_file = $name_file;
 	      $latex_file =~ s/\.dvi/\.tex/;
 	      &repaginate($new_name_file, $latex_file,  $numberofcolumns);
 	      &busy_wait_command("latex $latex_file 1>/dev/null 2>/dev/null",
 				 "for $status_statement first latex to repaginate",
-				 \%prog_state, $name_file);
+				 \%prog_state, $name_file, $busy_wait_timeout);
 	      if ($tableofcontents eq 'yes') {
 		  &busy_wait_command("latex $latex_file 1>/dev/null 2>/dev/null",
 				     "for $status_statement second latex to repaginate",
-				     \%prog_state, $name_file);
+				     \%prog_state, $name_file,  $busy_wait_timeout);
 		  &busy_wait_command("latex $latex_file 1>/dev/null 2>/dev/null",
 				     "for $status_statement third latex to repaginate",
-				     \%prog_state, $name_file);
+				     \%prog_state, $name_file, $busy_wait_timeout);
 	      }
 	      if ($tableofindex eq 'yes') {
 		  my $idxname = $latex_file;
@@ -622,11 +703,12 @@ foreach $texfile (@texfile) {
 				     \%prog_state, $idxname);
 		  &busy_wait_command("latex $latex_file 1>/dev/null 2>/dev/null",
 				     "for $status_statement now Recreting index (latex)",
-				     \%prog_state, $dvi_file);
+				     \%prog_state, $dvi_file, $busy_wait_timeout);
 	      }
 	      &busy_wait_command("$comma $name_file 1>/dev/null 2>/dev/null",
 				 "for $status_statement dvips to repaginate",
 				 \%prog_state, $new_name_file);
+
 	      print "<br />";
 	      $new_name_file =~ m/^(.*)\./;
 	      my $ps_file = my $tempo_file = $1.'temporar.ps';
@@ -680,10 +762,12 @@ foreach $texfile (@texfile) {
 	      $texps =~ s/\.tex/\.ps/;
 	      my @garb = ($texlog,$texaux,$texdvi,$texps);
 #	  unlink @garb;
-	      unlink $duefile;
+	      unlink($duefile);
 	      print "<a href=\"/prtspool/$pdf_file\">$link_text - click here to download pdf</a>";
 	      print "\n";
 	  }
+	  unlink($missfonts_file);
+
       }  
   } else {
       print "LaTeX file $texfile was not created successfully";
@@ -701,7 +785,7 @@ if ($number_of_files>1) {
     print("<pre>Zip Output:\n");
     system($statement);
     print("</pre>");
-    $zipfile=~s/\/home\/httpd//;
+    $zipfile=~s{^\Q$perlvar{'lonPrtDir'}\E}{/prtspool};
     print "<br /> A <a href=\"$zipfile\">ZIP file</a> of all the PDFs.";
 }
 if ($advanced_role) { &Apache::lonhtmlcommon::Close_PrgWin('',\%prog_state); }
@@ -711,9 +795,17 @@ my $done;
 sub REAPER {
     $done=1;
 }
-
+#
+#  Execute a command updating the status window as the command's
+#  output file builds up (at intervals of a second).
+#
+#   If the timeout argument defined, then if that many seconds
+#   elapses without an increase in the size of the output file,
+#   the command will be killed (this deals with the case when
+#   latex crawls into an infinite loop).
+#
 sub busy_wait_command {
-    my ($command,$message,$progress_win,$output_file)=@_;
+    my ($command,$message,$progress_win,$output_file, $timeout)=@_;
     
     $SIG{CHLD} = \&REAPER;
     $done=0;
@@ -721,12 +813,30 @@ sub busy_wait_command {
     if ($advanced_role) {
 	&Apache::lonhtmlcommon::Update_PrgWin('',$progress_win,$message);
     }
+    my $last_size      = 0;
+    my $unchanged_time = 0;
     while(!$done) {
 	sleep 1;
 	my $extra_msg;
 	if ($output_file) {
 	    my $size=(stat($output_file))[7];
 	    $extra_msg=", $size bytes generated";
+	    if ($size == $last_size) {
+		$unchanged_time++;
+		if ($timeout && ($unchanged_time > $timeout)) {
+		    print "<h1>Operation timed out!</h1>\n";
+		    print "<p>Executing $command, the output file $output_file did not grow\n";
+		    print "after $timeout seconds.  This <em>may</em> indicate $command\n";
+		    print "is in an infinite loop.\n";
+		    print "See if printing fewer copies helps.  Please contact LON-CAPA\n";
+		    print "support about this in any event.";
+		    print "</p>";
+		    kill(9, $pid); # Reaper will do the rest...I hope there's errors in the log.
+		}
+	    } else {
+		$last_size      = $size;
+		$unchanged_time = 0;
+	    }
 	}
 	if ($advanced_role) {
 	    &Apache::lonhtmlcommon::Update_PrgWin('',$progress_win,
@@ -786,8 +896,8 @@ sub repaginate {
 	#  bottom of the page, m the page number within the document.
 	#
 
-	if ($line =~ /^%%Page:/) {
-	    my @pageinfo = split(/ /, $line);
+	if ($line =~ /^%%Page:\s+\d+\s+\d+/) {
+	    my @pageinfo = split(/\s+/, $line);
 	    if ($page_number < $pageinfo[1]) {
 		$page_number = $pageinfo[1];
 	    } elsif ($pageinfo[2] ne 1) {
@@ -869,3 +979,57 @@ sub repaginate {
 
 }
 
+#
+#   Create missing fonts given a latex missfonts.log file.
+#   This file will have lines like:
+#
+#   mktexpk --mfmode ljfour --bdpi 8000 --mag 1+0/8000 --dpi 8000 tcrm0500
+#
+#  We want to execute those lines with the 8000's changed to 600's
+#  in order to match the resolution of the ljfour printer.
+#  Of course if some wiseguy has changed the default printer from ljfour
+#  in the dvips's config.ps file that will break so we'll also
+#  ensure that --mfmode is ljfour.
+#
+sub create_missing_fonts {
+    my ($fontfile, $state) = @_;
+
+    # Open and read in the font file..we'll read it into the array
+    #  font_commands.
+    #
+    open(my $font_handle, $fontfile);
+    my @font_commands = <$font_handle>;
+
+    # make the list contain each command only once
+    my %uniq;
+    @font_commands = map { $uniq{$_}++ == 0 ? $_ : () } @font_commands;
+
+    #  Now process each command replacing the appropriate 8000's with
+    #  600's ensuring that font names with 8000's in them are not corrupted.
+    #  and if the --mfmode is not ljfour we turn it into ljfour.
+    #   Then we execute the command.
+    #
+    
+    foreach my $command (@font_commands) {
+	#print("<br />Raw command: $command");
+	$command =~ s/ 8000/ 600/g;    # dpi directives.
+	$command =~ s/\/8000/\/600/g;  # mag directives.
+	#print("<br />After dpi replacements: $command");
+
+	my @cmdarray = split(/ /,$command);
+	for (my $i =0; $i < scalar(@cmdarray); $i++) {
+	    if ($cmdarray[$i] eq '--mfmode') {
+		$cmdarray[$i+1] = "ljfour";
+	    }
+	}
+	#print("<br /> before reassembly : (@cmdarray)");
+	$command = join(" ", (@cmdarray));
+
+	#print("<br />Creating fonts via command: $command");
+	&busy_wait_command("$command 1>/dev/null 2>/dev/null",
+			   "Creating missing font",
+			   $state);
+			   
+    }
+
+}