[BACK]Return to printout.pl CVS log [TXT] [DIR] Up to [LON-CAPA] / loncom / interface
File:  [LON-CAPA] / loncom / interface / printout.pl
Revision 1.24: download - view: text, annotated - select for diffs
Mon May 19 17:17:20 2003 UTC (20 years, 11 months ago) by sakharuk
Branches: MAIN
CVS tags: version_0_99_0, HEAD
Bug 1088 (dvips and metafont should not write their output to /etc/httpd/logs/error_log) is fixed.

#!/usr/bin/perl
use IO::File;
use Image::Magick;
 print "Content-type: text/html\n\n";
 print "<body bgcolor=\"#FFFFFF\">\n";
  my ($texfile,$laystyle,$numberofcolumns,$selectionmade) = 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  ";}
              #check is eps exist in prtspool
              if(not -e $eps_f) {
		  for (my $i=0;$i<10000;$i++) {
		      if (-e $eps_f.'.'.$i) {
			  rename $eps_f.'.'.$i, $eps_f;
			  last;
		      }
		  }
	      }  
	  }
      }
      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");
  #Do we have a latex error in the log file?
  my $logfilename = $texfile;
  $logfilename =~ s/\.tex$/\.log/;
  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 $body_log_file = join(' ',@content_of_file); 
  if ($body_log_file=~m/!\s+Emergency stop/) {
      #LaTeX failed to parse tex file 
      print "<h2>LaTeX could not successfully parse your tex file.</h2>";
      print "It probably has errors in it.<br />";
      my $whereitbegins = rindex $body_log_file,'STAMPOFPASSEDRESOURCESTART';
      my $whereitends = rindex $body_log_file,'STAMPOFPASSEDRESOURCEEND';
      if ($whereitbegins!=-1 and $whereitends!=-1) {
	print "With very high probability this error occured in ".substr($body_log_file,$whereitbegins+26,$whereitends-$whereitbegins-26)."<br /><br />";
      }
      print "Here are the error messages in the LaTeX log file</br><br />";
      my $sygnal = 0;
      for (my $i=0;$i<=$#content_of_file;$i++) {
          if ($content_of_file[$i]=~m/^Runaway argument?/ or $content_of_file[$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 />";
	  }  
      } 
  } else {
      #LaTeX successfully parsed tex file 
      $name_file =~ s/\.tex/\.dvi/;
      my $new_name_file = $name_file;
      $new_name_file =~ s/\.dvi/\.ps/;
      my $comma = "dvips -Ppdf -G0 -o $new_name_file";
      system("$comma $name_file 1>/dev/null 2>/dev/null");
      if (-e $new_name_file) {
	  print "<h1>OUTPUT is in the PDF FILE (see link below)</h1>\n";
	  $new_name_file =~ m/^(.*)\./;
	  my $tempo_file = $1.'temporar.ps';
	  my $name_file = $1.'.pdf';
	  if ($laystyle eq 'album' and $numberofcolumns eq '2') {
	      $comma = "psnup -2 -s1.0 $new_name_file";
	      system("$comma $tempo_file 1>/dev/null 2>/dev/null"); 
	      system("ps2pdf $tempo_file $name_file 1>/dev/null 2>/dev/null");
	  } elsif ($laystyle eq 'book' and $numberofcolumns eq '2') {
	      $comma = 'pstops -pletter "2:0+1(0.48w,0)"';
	      system("$comma $new_name_file $tempo_file 1>/dev/null 2>/dev/null");
	      system("ps2pdf $tempo_file $name_file 1>/dev/null 2>/dev/null");
	  } else {
	      system("ps2pdf $new_name_file $name_file 1>/dev/null 2>/dev/null");
	  }	    
	  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";
      }
  }
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