--- loncom/interface/lonprintout.pm	2001/09/18 14:35:11	1.4
+++ loncom/interface/lonprintout.pm	2002/01/11 17:06:56	1.12
@@ -1,6 +1,30 @@
 # The LearningOnline Network
 # Printout
 #
+# $Id: lonprintout.pm,v 1.12 2002/01/11 17:06:56 sakharuk Exp $
+#
+# Copyright Michigan State University Board of Trustees
+#
+# This file is part of the LearningOnline Network with CAPA (LON-CAPA).
+#
+# LON-CAPA is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# LON-CAPA is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with LON-CAPA; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+#
+# /home/httpd/html/adm/gpl.txt
+#
+# http://www.lon-capa.org/
+#
 # (Internal Server Error Handler
 #
 # (Login Screen
@@ -16,10 +40,10 @@
 package Apache::lonprintout;
 
 use strict;
-use Apache::Constants qw(:common);
+use Apache::Constants qw(:common :http);
 use Apache::lonxml;
 use Apache::lonnet;
-use Apache::File;
+use Apache::File();
 
 
 
@@ -41,8 +65,10 @@ sub menu_for_output {
     my $r = shift;
     $r->print(<<ENDMENUOUT);
 <input type="hidden" name="phase" value="two">
-<input type="radio" name="choice" value="Standard LaTeX output for current document">  Standard LaTeX output for current document<br></br>
-<input type="radio" name="choice" value="Standard LaTeX output for the whole sequence">  Standard LaTeX output for the whole sequence<br></br>
+<input type="hidden" name="url" value="$ENV{'form.postdata'}">
+<input type="radio" name="choice" value="Standard LaTeX output for current document">  Standard LaTeX output for current document<br />
+<input type="radio" name="choice" value="Standard LaTeX output for the primary sequence">  Standard LaTeX output for the primary sequence<br />
+<input type="radio" name="choice" value="Standard LaTeX output for the top level sequence">  Standard LaTeX output for the top level sequence<br />
 <input type="submit" value="Please make a choice">
 </form>
 </body>
@@ -65,53 +91,159 @@ ENDPART
     my $choice = $ENV{'form.choice'};
     my $result = '';
     my %mystyle;
+    my $filename;
 
     if ($choice eq 'Standard LaTeX output for current document') {
-
-	my $file=&Apache::lonnet::filelocation("",'/res/'.$ENV{'request.ambiguous'});
-	my $filecontents=&Apache::lonnet::getfile($file);
-	$result = &Apache::lonxml::xmlparse('tex',$filecontents,'',%mystyle);
-
-	my $tempo_file;
-        my $file = '/home/httpd/prtspool/temp.tex';
-	unless ($tempo_file = Apache::File->new($file)) {
-	    $r->log_error("Couldn't open $file for output");
-            return SERVER_ERROR; 
+        my $access=&Apache::lonnet::allowed('bre',$ENV{'form.url'});
+	if (($access ne '2') && ($access ne 'F')) {
+	  $ENV{'user.error.msg'}="$ENV{'form.url'}:bre:1:1:Access Denied";
+	  return HTTP_NOT_ACCEPTABLE;
 	}
-
-	$r->print($result);
-
-    } elsif ($choice eq 'Standard LaTeX output for the whole sequence') {
-	my $current_file = '/res/'.$ENV{'request.ambiguous'};
-        $current_file =~ s/(\/res\/physnet\/physnet)(\/m\d+)\/(.*)/$1$2$2\.sequence/;
-	my $file=&Apache::lonnet::filelocation("",$current_file);
+	my $file=&Apache::lonnet::filelocation("",$ENV{'form.url'});
 	my $filecontents=&Apache::lonnet::getfile($file);
-	$result = &Apache::lonxml::xmlparse('tex',$filecontents,'',%mystyle);
+        $_ = $file;
+        if (/\.problem/) {
+	    my $default=&Apache::lonnet::getfile('/home/httpd/html/res/adm/includes/default_homework.lcpm');
+	    if ($default == -1) {
+		&Apache::lonxml::error("<b>Unable to find <i>default_homework.lcpm</i></b>");
+		$default='';
+	    }
+	    $result = &Apache::lonxml::xmlparse('tex', $filecontents,$default.&Apache::lonhomework::setup_vars('tex'),%mystyle);
+         
+
+	} else { 
+	    $result = &Apache::lonxml::xmlparse('tex',$filecontents,'',%mystyle);
+	} 
 
-	$result = &content_map($result);
-	$r->print($result);
 
 
 
+	
+      
+#    my $ere;
+#    foreach $ere (%ENV) {
+#	$result .= ' SS '.$ere.' => '.$ENV{$ere}.' FF '."\n\n";
+#    }
+    } elsif ($choice eq 'Standard LaTeX output for the primary sequence') {
+	my @master_seq = ();
+	my $keyword = 0;
+	my $output_seq = '';
+	my $current_file = '/res/'.$ENV{'request.ambiguous'};
+        $current_file =~ s/(\/res\/physnet\/physnet)(\/m\d+)\/(.*)/$1$2$2\.sequence/;
+	while ($current_file ne '') {
+	    my $file=&Apache::lonnet::filelocation("",$current_file);
+	    my $filecontents=&Apache::lonnet::getfile($file);
+	    my @file_seq = &content_map($filecontents);
+	    if (defined @file_seq) {
+#-- adding an additional array to the master one
+		if (defined @master_seq) {
+                    my $old_value = $#master_seq;
+		    my $total_value = $#master_seq + $#file_seq +2;
+                    for (my $j=0; $j<=$old_value-$keyword+1; $j++) {
+			$master_seq[$total_value-$j] = $master_seq[$old_value-$j];
+		    }
+                    for (my $j=0; $j<=$#file_seq; $j++){
+			$master_seq[$keyword+$j] = $file_seq[$j];
+		    }
+		    @file_seq = ();
+		    $keyword = 0;
+		} else {
+		    @master_seq = @file_seq;
+                    @file_seq = ();
+		}
+	    } 
+#-- checking wether .sequence file is among the set of files
+	    $current_file = '';
+	    for (my $i=0; $i<=$#file_seq; $i++) {
+		$_ = $file_seq[$i];
+		if (m/(.*)\.sequence/) {
+		    $current_file = $_;
+		    $keyword = $i;
+		    last;
+		}
+	    }        
+	}
+#-- produce an output string
+	for (my $i=0;$i<=$#master_seq;$i++) {
+	    $_ = $master_seq[$i];
+	    m/\"(.*)\"/;
+	    if (index($1,'-tc.xml',0)==-1) {
+		my $file=&Apache::lonnet::filelocation("",$1);
+		my $filecontents=&Apache::lonnet::getfile($file);
+		$output_seq .= $filecontents;
+	    }
+	}
+#-- cleanup of output string (temporary cbi-specific)
+	$output_seq =~ s/<physnet>//g;
+	$output_seq =~ s/<\/physnet>//g;
+	$output_seq = '<physnet>'.$output_seq.' </physnet>';
+#-- final accord
+	$result = &Apache::lonxml::xmlparse('tex',$output_seq,'',%mystyle);
     }
+#-- writing .tex file in prtspool 
+	{
+	    my $temp_file;
+	    $filename = "/home/httpd/prtspool/$ENV{'environment.firstname'}$ENV{'environment.lastname'}temp$ENV{'user.login.time'}.tex";
+	    unless ($temp_file = Apache::File->new('>'.$filename)) {
+		$r->log_error("Couldn't open $filename for output $!");
+		return SERVER_ERROR; 
+	    } 
+		print $temp_file $result;
+	}
 $r->print(<<FINALEND);
+<meta http-equiv="Refresh" content="0; url=/cgi-bin/printout.pl?$filename">
 </body>
 </html>
 FINALEND
 }
 
 
-sub content_map {
-#-- find a list of files to publish
-    my $map_string = shift;
-  
 
 
-
-    return $map_string;
+sub content_map {
+#-- find a list of files to print
+    my $map_string = shift;
+    my @number_seq = ();
+    my @file_seq = ();
+    my $startlink = index($map_string,'<link',0);
+    my $endlink = index($map_string,'</link>',$startlink);
+    my $chunk = substr($map_string,$startlink,$endlink-$startlink+7);
+    $_ = $chunk;
+    m/from=\"(\d+)\"/;
+    push @number_seq,$1;
+    while ($startlink != -1) {
+	$endlink = index($map_string,'</link>',$startlink);
+	$chunk = substr($map_string,$startlink,$endlink-$startlink+7);
+	substr($map_string,$startlink,$endlink-$startlink+7) = '';
+	$_ = $chunk;
+        m/to=\"(\d+)\"/;
+	push @number_seq,$1;
+	$startlink = index($map_string,'<link from="'.$1.'"',$startlink);
+    }
+    my $stalink = index($map_string,' to="'.$number_seq[0].'"',$startlink);
+    while ($stalink != -1) {
+	$startlink = rindex($map_string,'<link ',$stalink);
+	$endlink = index($map_string,'</link>',$startlink);
+	$chunk = substr($map_string,$startlink,$endlink-$startlink+7);
+	substr($map_string,$startlink,$endlink-$startlink+7) = '';
+	$_ = $chunk;
+        m/from=\"(\d+)\"/;
+	unshift @number_seq,$1;
+	$stalink = index($map_string,' to="'.$number_seq[0].'"',0);
+    }
+    for (my $i=0;$i<=$#number_seq;$i++) {
+	$stalink = index($map_string,' id="'.$number_seq[$i].'"',0);
+	$startlink = index($map_string,'src="',$stalink);
+	$startlink = index($map_string,'"',$startlink);
+	$endlink = index($map_string,'"',$startlink+1);
+	$chunk = substr($map_string,$startlink,$endlink-$startlink+1);
+	push @file_seq,$chunk;
+    }
+    return @file_seq;
 }
 
 
+
 sub handler {
 
     my $r = shift;
@@ -127,6 +259,7 @@ sub handler {
 #-- core part 
     if ($ENV{'form.phase'} eq 'two') {
 	&output_data($r);
+
     }
     return OK;
 
@@ -134,3 +267,9 @@ sub handler {
 
 1;
 __END__
+
+
+#    my $ere;
+#    foreach $ere (%ENV) {
+#	$r->print(' SS '.$ere.' => '.$ENV{$ere}.' FF '."\n\n");
+#    }