[BACK]Return to printout.pl CVS log [TXT] [DIR] Up to [LON-CAPA] / loncom / interface

Diff for /loncom/interface/printout.pl between versions 1.100 and 1.103

version 1.100, 2006/06/12 11:21:07 version 1.103, 2006/06/19 22:30:15
Line 161  END Line 161  END
 }  }
  &Apache::lonlocal::get_language_handle();   &Apache::lonlocal::get_language_handle();
  &Apache::loncommon::content_type(undef,'text/html');   &Apache::loncommon::content_type(undef,'text/html');
  print(&Apache::loncommon::start_page('Creating PDF'));  
     print(&Apache::loncommon::start_page('Creating PDF'));
   
   my $identifier = $ENV{'QUERY_STRING'};    my $identifier = $ENV{'QUERY_STRING'};
   my $texfile = $env{'cgi.'.$identifier.'.file'};    my $texfile = $env{'cgi.'.$identifier.'.file'};
Line 475  foreach $texfile (@texfile) { Line 476  foreach $texfile (@texfile) {
      "for $status_statement now Converting to PS",       "for $status_statement now Converting to PS",
      \%prog_state,$new_name_file);       \%prog_state,$new_name_file);
   if (-e $new_name_file) {    if (-e $new_name_file) {
       &repaginate_postscript($new_name_file);        my $latex_file = $name_file;
       print "<h1>PDF output file (see link below)</h1>\n";        $latex_file    =~ s/\.dvi/\.tex/;
         &repaginate($new_name_file, $latex_file, $numberofcolumns);
         #
         #  Now have to re-latex, re dvips again to 
         #  get the repaginated postscript.
         #
         &busy_wait_command("latex $latex_file 1>/dev/null 2>/dev/null",
    "for $status_statement first latex to repaginate",
    \%prog_state, $name_file);
         &busy_wait_command("latex $latex_file 1>/dev/null 2>/dev/null",
    "for $status_statement second latex to repaginate",
    \%prog_state, $name_file);
         &busy_wait_command("latex $latex_file 1>/dev/null 2>/dev/null",
    "for $status_statement third latex to repaginate",
    \%prog_state, $name_file);
         &busy_wait_command("$comma $name_file 1>dev/null 2>/dev/null",
    "for $status_statement dvips to repaginate",
    \%prog_state, $new_name_file);
   
         print "\n<h1>PDF output file (see link below)</h1>\n";
       $new_name_file =~ m/^(.*)\./;        $new_name_file =~ m/^(.*)\./;
       my $ps_file = my $tempo_file = $1.'temporar.ps';        my $ps_file = my $tempo_file = $1.'temporar.ps';
       my $pdf_file = $1.'.pdf';        my $pdf_file = $1.'.pdf';
Line 550  foreach $texfile (@texfile) { Line 570  foreach $texfile (@texfile) {
      "for $status_statement now Converting to PS",       "for $status_statement now Converting to PS",
      \%prog_state,$new_name_file);       \%prog_state,$new_name_file);
   if (-e $new_name_file) {    if (-e $new_name_file) {
       &repaginate_postscript($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);
         &busy_wait_command("latex $latex_file 1>/dev/null 2>/dev/null",
    "for $status_statement second latex to repaginate",
    \%prog_state, $name_file);
         &busy_wait_command("latex $latex_file 1>/dev/null 2>/dev/null",
    "for $status_statement third latex to repaginate",
    \%prog_state, $name_file);
         &busy_wait_command("$comma $name_file 1>/dev/null 2>/dev/null",
    "for $status_statement dvips to repaginate",
    \%prog_state, $new_name_file);
       print "<br />";        print "<br />";
       $new_name_file =~ m/^(.*)\./;        $new_name_file =~ m/^(.*)\./;
       my $ps_file = my $tempo_file = $1.'temporar.ps';        my $ps_file = my $tempo_file = $1.'temporar.ps';
Line 631  if ($number_of_files>1) { Line 665  if ($number_of_files>1) {
 if ($advanced_role) { &Apache::lonhtmlcommon::Close_PrgWin('',\%prog_state); }  if ($advanced_role) { &Apache::lonhtmlcommon::Close_PrgWin('',\%prog_state); }
 print(&Apache::loncommon::end_page());  print(&Apache::loncommon::end_page());
 my $done;  my $done;
   
 sub REAPER {  sub REAPER {
     $done=1;      $done=1;
 }  }
Line 640  sub busy_wait_command { Line 675  sub busy_wait_command {
           
     $SIG{CHLD} = \&REAPER;      $SIG{CHLD} = \&REAPER;
     $done=0;      $done=0;
       print("<p> Doing : <tt>$command</tt>");
     my $pid=open(CMD,"$command |");      my $pid=open(CMD,"$command |");
     if ($advanced_role) {      if ($advanced_role) {
  &Apache::lonhtmlcommon::Update_PrgWin('',$progress_win,$message);   &Apache::lonhtmlcommon::Update_PrgWin('',$progress_win,$message);
Line 659  sub busy_wait_command { Line 695  sub busy_wait_command {
     $SIG{CHLD}='IGNORE';      $SIG{CHLD}='IGNORE';
     close(CMD);      close(CMD);
 }  }
       print("<p> End</p>");
   
   #  Repagninate
 #  Repagninate a postscript file.  
 #  What we need to do:  #  What we need to do:
 #   - Count the number of pages in each student.  #   - Count the number of pages in each student.
 #   - Add pages between each student so that each student's output is  #   - Rewrite the latex file replacing the \specials that
 #     the maximum number of pages.  #     mark the end of student with an appropriate number of newlines.
 #     #   parameters:
 sub repaginate_postscript {  #     psfile     - Postscript filename
   #     latexfile  - LaTeX filename
   #     columns    - number of columns.
   sub repaginate {
   
     # We will try to do this in 2 passes through the postscript since      # We will try to do this in 2 passes through the postscript since
     # the postscript is potentially large, to do 2 passes, the first pass      # the postscript is potentially large, to do 2 passes, the first pass
Line 680  sub repaginate_postscript { Line 719  sub repaginate_postscript {
     #    2. Maximum number of pages in a student      #    2. Maximum number of pages in a student
     #    3. Number of pages in each student.      #    3. Number of pages in each student.
   
     my ($postscript_filename) = @_;      my ($postscript_filename, $latex_filename, $num_columns) = @_;
     open(PSFILE, "<$postscript_filename");      open(PSFILE, "<$postscript_filename");
     my $line;      my $line;
     my $total_pages; # Total pages in document.      my $total_pages; # Total pages in document.
Line 688  sub repaginate_postscript { Line 727  sub repaginate_postscript {
     my $student_number    = 0; # Index of student we're working on.      my $student_number    = 0; # Index of student we're working on.
     my @pages_in_student; # For each student his/her initial page count.      my @pages_in_student; # For each student his/her initial page count.
     my $max_pages = 0; # Pages in 'longest' student.      my $max_pages = 0; # Pages in 'longest' student.
       my $page_number = 0;
     while ($line = <PSFILE>) {      while ($line = <PSFILE>) {
  my $page_number = 0;  
   
  # Check for total pages (%%Pages:)   # Check for total pages (%%Pages:)
   
  if (($line =~ "^%%Pages:") && (!$seen_pages)) {   if (($line =~ /^%%Pages:/) && (!$seen_pages)) {
     my @pageinfo = split(/ /,$line);      my @pageinfo = split(/ /,$line);
     $total_pages = $pageinfo[1];      $total_pages = $pageinfo[1];
     $seen_pages  = 1;      $seen_pages  = 1;
Line 704  sub repaginate_postscript { Line 743  sub repaginate_postscript {
  #  we only are looking for the largest n (n is page number at the   #  we only are looking for the largest n (n is page number at the
  #  bottom of the page, m the page number within the document.   #  bottom of the page, m the page number within the document.
  #   #
  if ($line =~ "^%%Page:") {  
    if ($line =~ /^%%Page:/) {
     my @pageinfo = split(/ /, $line);      my @pageinfo = split(/ /, $line);
     if ($page_number < $pageinfo[1]) {      if ($page_number < $pageinfo[1]) {
  $page_number = $pageinfo[1];   $page_number = $pageinfo[1];
Line 713  sub repaginate_postscript { Line 753  sub repaginate_postscript {
  #  ENDOFSTUDENTSTAMP - save the page_number, reset and, if necessary   #  ENDOFSTUDENTSTAMP - save the page_number, reset and, if necessary
  #                      udpate max_pages.   #                      udpate max_pages.
  #   #
  if ($line =~ "ENDOFSTUDENTSTAMP") {   if ($line =~ /ENDOFSTUDENTSTAMP/) {
     $pages_in_student[$student_number] = $page_number;      $pages_in_student[$student_number] = $page_number;
     $student_number++;      $student_number++;
   
Line 727  sub repaginate_postscript { Line 767  sub repaginate_postscript {
   
     }      }
     close(PSFILE);      close(PSFILE);
       
     #   Figure out how many total pages we need to add and adjust the  
     #   $total_pages accordingly:  
     #  
     my $add_pages  = 0;  
     for (my $i =0; $i < $student_number; $i++) {  
  $add_pages += ($max_pages - $pages_in_student[$i]);  
     }      
     #  If we don't need to add any pages, we're done!  
     #  You  might think that we don't need to do anything if   
     #  there are no pages to add, however we still need to at least strip out  
     #   the ENDOFSTUDENTSTAMP stamps...as they are not postscript comments!!  
   
         #  If 2 columns, max_pages must go to an even number of columns:
     #  Now pass 2; we're going to write the new. ps file:  
     #  -  Modify its first %%Pages: line so that it has the new correct number of      &Apache::lonnet::logthis("Before 2 col adjust max-pages = $max_pages");
     #     pages     
     #  -  For each student, insert as many blank pages as needed (and      if ($num_columns == 2) {
     #     associated structured comments) to expand a  student out to   if ($max_pages % 2) {
     #     max_pages pages.      $max_pages++;
     #  -  Remove the ENDOFSTUDENTSTAMP lines.  
     #  
   
     $total_pages += $add_pages;  
     $student_number = 0;  
    
    open(PSFILE, "<$postscript_filename");  
     open(PSOFILE,">$postscript_filename"."repaginating"); # unique if original fname is.  
     $seen_pages = 0; # Reset seen %%Pages flag...  
     while ($line = <PSFILE>) {  
  if (($line =~ "^%%Pages:") && (!$seen_pages)) {  
     $line = "%%Pages: $total_pages\n";  
     $seen_pages = 1;  
  }   }
  if ($line =~ "ENDOFSTUDENTSTAMP") {      }
     $add_pages = ($max_pages - $pages_in_student[$student_number]);      &Apache::lonnet::logthis("after adjust: $max_pages");
     $line = "\n";      
     my $last_student_page = $pages_in_student[$student_number];      #  Now rewrite the LaTex file, substituting our \special
     my $last_total_page   = $student_number*$max_pages + $last_student_page;      #  with an appropriate number of \newpage directives.
     while ($add_pages) {  
  $line .= "%Page: $last_student_page $last_total_page\n";      my $outfilename = $latex_filename."temp";
  my $bop = $last_total_page-1;  
  $line .= "TeXDict begin $last_student_page $bop bop eop end\n";      open(LATEXIN, "<$latex_filename");
  $last_student_page++;      open(LATEXOUT, ">$outfilename");
  $last_total_page++;  
  $add_pages--;  
       $student_number = 0; # first student...
   
       while (my $line = <LATEXIN>) {
    if ($line eq "\\special{ps:ENDOFSTUDENTSTAMP}\n") {
       # only end of student stamp if next line is ENDOFSTUDENTSTAMP:
   
   
       # End of student replace with 0 or more newpages.
       
       my $addlines = $max_pages - $pages_in_student[$student_number];
       &Apache::lonnet::logthis("student: $pages_in_student[$student_number] add: $addlines");
       while($addlines)  {
    print LATEXOUT '\pagebreak';
    $addlines--;
     }      }
       
     $student_number++;      $student_number++;
       
    } else {
       print LATEXOUT $line;
  }   }
  print PSOFILE $line;  
     }      }
     close PSOFILE;  
     close PSFILE;  
   
     rename($postscript_filename."repaginating", $postscript_filename);      close(LATEXIN);
       close(LATEXOUT);
      rename($outfilename, $latex_filename);
   
 }  }
   
Removed from v.1.100  
changed lines
  Added in v.1.103

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