[LON-CAPA-cvs] cvs: loncom /interface printout.pl

sakharuk lon-capa-cvs@mail.lon-capa.org
Tue, 06 Aug 2002 16:11:05 -0000


sakharuk		Tue Aug  6 12:11:05 2002 EDT

  Modified files:              
    /loncom/interface	printout.pl 
  Log:
  The first very brief attempt to include LaTeX error messages.
  
  
Index: loncom/interface/printout.pl
diff -u loncom/interface/printout.pl:1.13 loncom/interface/printout.pl:1.14
--- loncom/interface/printout.pl:1.13	Thu Aug  1 14:09:27 2002
+++ loncom/interface/printout.pl	Tue Aug  6 12:11:05 2002
@@ -1,74 +1,105 @@
 #!/usr/bin/perl
 use IO::File;
 use Image::Magick;
-print "Content-type: text/html\n\n";
-print "<body bgcolor=\"#FFFFFF\">\n";
-print "<h1>OUTPUT is in the PDF FILE (see link below)</h1>\n";
-my ($texfile,$laystyle) = split(/&/,$ENV{'QUERY_STRING'});
-my $figfile = $texfile;
-$figfile =~ s/^([^\.]+printout)[^t]+\.tex/$1\.dat/;
-my $duefile = $texfile;
-$duefile =~ s/^([^\.]+printout)[^t]+\.tex/$1\.due/;
-if (-e $figfile) {
-    my $temporary_file=IO::File->new($figfile) || die "Couldn't open file for reading: $!\n";
-    my @content_of_file = <$temporary_file>;
-    close $temporary_file;  
-    my $noteps;
-    foreach $not_eps (@content_of_file) {
-	if ($not_eps ne '') {
-	    my $eps_f = $not_eps;
-	    $eps_f =~ s/\.[^.]*$/\.eps/i;
-	    $_ = $eps_f;
-            m/\/([^\/]+)$/;
-	    $eps_f = '/home/httpd/prtspool/'.$1;
-	    my $image = Image::Magick->new;
-	    $not_eps =~ s/^\s+//;
-	    $not_eps =~ s/\s+$//;
-	    $status = $image->Read($not_eps);
-	    if ($status) {print "  $status  ";}
-	    $image->Set(page => '+100+200'); 
-	    $status = $image->Write($eps_f);	    
-	    if ($status) {print "  $status  ";}
-	}
-    }
-    unlink $figfile;
-}
-print "$texfile\n";
- $_ = $texfile;
- m/^(.*)\/([^\/]+)$/; 
-my $name_file = $2;
-my $path_file = $1.'/';
- chdir $path_file;
- system("latex $name_file 1>/dev/null 2>/dev/null");
- $name_file =~ s/\.tex/\.dvi/;
-my $new_name_file = $name_file;
- $new_name_file =~ s/\.dvi/\.ps/;
-my $comma = "dvips -o $new_name_file";
- system("$comma $name_file");
- $_ = $new_name_file;
- m/^(.*)\./;
-my $tempo_file = $1.'temporar.ps';
-my $name_file = $1.'.pdf';
-if ($laystyle eq 'album') {
-    $comma = "psnup -2 -s1.0 $new_name_file";
-    system("$comma $tempo_file"); 
-    system("ps2pdf $tempo_file $name_file");
-} elsif ($laystyle eq 'book') {
-    system("ps2pdf $new_name_file $name_file");
-}	    
-my $texlog = $texfile;
-my $texaux = $texfile;
-my $texdvi = $texfile;
-my $texps = $texfile;
-$texlog =~ s/\.tex/\.log/;
-$texaux =~ s/\.tex/\.aux/;
-$texdvi =~ s/\.tex/\.dvi/;
-$texps =~ s/\.tex/\.ps/;
-my @garb = ($texlog,$texaux,$texdvi,$texps);
-unlink @garb;
-unlink $duefile;
-print "<a href=\"/prtspool/$name_file\">Your PDF document</a>\n";
-print "\n";
+ print "Content-type: text/html\n\n";
+ print "<body bgcolor=\"#FFFFFF\">\n";
+  my ($texfile,$laystyle) = split(/&/,$ENV{'QUERY_STRING'});
+  my $figfile = $texfile;
+  $figfile =~ s/^([^\.]+printout)[^t]+\.tex/$1\.dat/;
+  my $duefile = $texfile;
+  $duefile =~ s/^([^\.]+printout)[^t]+\.tex/$1\.due/;
+  #do we have figures?
+  if (-e $figfile) {
+      my $temporary_file=IO::File->new($figfile) || die "Couldn't open file for reading: $!\n";
+      my @content_of_file = <$temporary_file>;
+      close $temporary_file;  
+      my $noteps;
+      foreach $not_eps (@content_of_file) {
+	  if ($not_eps ne '') {
+	      my $eps_f = $not_eps;
+	      $eps_f =~ s/\.[^.]*$/\.eps/i;
+	      $_ = $eps_f;
+	      m/\/([^\/]+)$/;
+	      $eps_f = '/home/httpd/prtspool/'.$1;
+	      my $image = Image::Magick->new;
+	      $not_eps =~ s/^\s+//;
+	      $not_eps =~ s/\s+$//;
+	      $status = $image->Read($not_eps);
+	      if ($status) {print "  $status  ";}
+	      $image->Set(page => '+100+200'); 
+	      $status = $image->Write($eps_f);	    
+	      if ($status) {print "  $status  ";}
+	  }
+      }
+      unlink $figfile;
+  }
+  #print "$texfile\n"; #name of the tex file for debugging only
+  $texfile =~ m/^(.*)\/([^\/]+)$/; 
+  my $name_file = $2;
+  my $path_file = $1.'/';
+  chdir $path_file;
+  system("latex $name_file 1>/dev/null 2>/dev/null");
+  $name_file =~ s/\.tex/\.dvi/;
+  if (-e $name_file) {
+      #if dvi file exist = LaTeX successfully parsed tex file 
+      print "<h1>OUTPUT is in the PDF FILE (see link below)</h1>\n";
+      my $new_name_file = $name_file;
+      $new_name_file =~ s/\.dvi/\.ps/;
+      my $comma = "dvips -o $new_name_file";
+      system("$comma $name_file");
+      $_ = $new_name_file;
+      m/^(.*)\./;
+      my $tempo_file = $1.'temporar.ps';
+      my $name_file = $1.'.pdf';
+      if ($laystyle eq 'album') {
+	  $comma = "psnup -2 -s1.0 $new_name_file";
+	  system("$comma $tempo_file"); 
+	  system("ps2pdf $tempo_file $name_file");
+      } elsif ($laystyle eq 'book') {
+	  system("ps2pdf $new_name_file $name_file");
+      }	    
+      my $texlog = $texfile;
+      my $texaux = $texfile;
+      my $texdvi = $texfile;
+      my $texps = $texfile;
+      $texlog =~ s/\.tex/\.log/;
+      $texaux =~ s/\.tex/\.aux/;
+      $texdvi =~ s/\.tex/\.dvi/;
+      $texps =~ s/\.tex/\.ps/;
+      my @garb = ($texlog,$texaux,$texdvi,$texps);
+      unlink @garb;
+      unlink $duefile;
+      print "<a href=\"/prtspool/$name_file\">Your PDF document</a>";
+      print "\n";
+  } else {
+      print "<h1>LaTeX could not successfully parse your tex file.</h1>";
+      print "<h2>Probably, you have errors in it.</h2>";
+      my $logfilename = $texfile;
+      $logfilename =~ s/\.tex$/\.log/;
+      if (-e $logfilename) {     
+          #if dvi file does not exist = LaTeX failed to parse tex file 
+	  print "To give you a clue we show you a few lines from the LaTeX log file</br>";
+	  my $temporary_file=IO::File->new($logfilename) || die "Couldn't open file for reading: $!\n";
+	  my @content_of_file = <$temporary_file>;
+	  close $temporary_file; 
+	  my $sygnal = 0;
+	  for (my $i=0;$i<=$#content_of_file;$i++) {
+	      if ($content_of_file[$i]=~m/^!/) {
+		  $sygnal = 1;
+	      } 
+	      if ($content_of_file[$i]=~m/Here is how much of/) {
+		  $sygnal = 0;
+	      } 
+	      if ($sygnal) {
+		  print "$content_of_file[$i]<br />";
+	      }
+
+	  } 
+#	  my $content_file_string = join(' ',@content_of_file);
+          
+#	  print "$content_file_string\n";
+      }
+  }