Annotation of loncom/interface/lonprintout.pm, revision 1.35

1.1       www         1: # The LearningOnline Network
                      2: # Printout
                      3: #
1.35    ! sakharuk    4: # $Id: lonprintout.pm,v 1.34 2002/06/27 18:47:59 sakharuk Exp $
1.11      albertel    5: #
                      6: # Copyright Michigan State University Board of Trustees
                      7: #
                      8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
                      9: #
                     10: # LON-CAPA is free software; you can redistribute it and/or modify
                     11: # it under the terms of the GNU General Public License as published by
                     12: # the Free Software Foundation; either version 2 of the License, or
                     13: # (at your option) any later version.
                     14: #
                     15: # LON-CAPA is distributed in the hope that it will be useful,
                     16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
                     17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
                     18: # GNU General Public License for more details.
                     19: #
                     20: # You should have received a copy of the GNU General Public License
                     21: # along with LON-CAPA; if not, write to the Free Software
                     22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
                     23: #
                     24: # /home/httpd/html/adm/gpl.txt
                     25: #
                     26: # http://www.lon-capa.org/
                     27: #
1.1       www        28: # (Internal Server Error Handler
                     29: #
                     30: # (Login Screen
                     31: # 5/21/99,5/22,5/25,5/26,5/31,6/2,6/10,7/12,7/14,
                     32: # 1/14/00,5/29,5/30,6/1,6/29,7/1,11/9 Gerd Kortemeyer)
                     33: #
                     34: # 3/1/1 Gerd Kortemeyer)
                     35: #
                     36: # 3/1 Gerd Kortemeyer
                     37: #
1.3       sakharuk   38: # 9/17 Alex Sakharuk
                     39: #
1.1       www        40: package Apache::lonprintout;
                     41: 
                     42: use strict;
1.10      albertel   43: use Apache::Constants qw(:common :http);
1.2       sakharuk   44: use Apache::lonxml;
                     45: use Apache::lonnet;
1.13      sakharuk   46: use Apache::inputtags;
                     47: use Apache::edit;
1.5       sakharuk   48: use Apache::File();
1.34      sakharuk   49: use POSIX qw(strftime);
1.3       sakharuk   50: 
                     51: 
                     52: sub headerform {
1.1       www        53:     my $r = shift;
1.3       sakharuk   54:     $r->print(<<ENDHEADER);
                     55: <html>
                     56: <head>
                     57: <title>LON-CAPA output for printing</title>
                     58: </head>
                     59: <body bgcolor="FFFFFF">
                     60: <form method="post" enctype="multipart/form-data" action="/adm/printout" name="printform">
1.16      sakharuk   61: <h1>What do you want to print? Make a choice.</h1><br />
1.3       sakharuk   62: ENDHEADER
                     63: }
                     64: 
1.1       www        65: 
1.3       sakharuk   66: sub menu_for_output {
                     67:     my $r = shift;
1.28      sakharuk   68:     $r->print(<<ENDMENUOUT1);
1.3       sakharuk   69: <input type="hidden" name="phase" value="two">
1.10      albertel   70: <input type="hidden" name="url" value="$ENV{'form.postdata'}">
1.25      sakharuk   71: <input type="radio" name="choice" value="Standard LaTeX output for current document" checked>  Current document
1.16      sakharuk   72: (you will print what you see on the screen)<br />
1.19      sakharuk   73: <input type="radio" name="choice" value="Standard LaTeX output for the primary sequence">  All problems from the primary sequence<br />
1.20      sakharuk   74: <input type="radio" name="choice" value="Standard LaTeX output for whole primary sequence">  The whole primary sequence (problems plus all html and xml files)<br />
1.19      sakharuk   75: <input type="radio" name="choice" value="Standard LaTeX output for the top level sequence">  All problems from the top level sequence<br />
1.28      sakharuk   76: <br />
                     77: ENDMENUOUT1
1.31      sakharuk   78:     my $subdirtoprint = &Apache::lonnet::filelocation("",$ENV{'form.url'});
                     79:     $subdirtoprint =~ s/\/[^\/]+$//;
                     80:     if (&Apache::lonnet::allowed('bre',$subdirtoprint) eq 'F') {
1.28      sakharuk   81: 	$r->print(<<ENDMENUOUT2);
1.31      sakharuk   82: <input type="radio" name="choice" value="Subdirectory print">  All problems from current subdirectory (where this particular problem is)<br />
1.28      sakharuk   83: ENDMENUOUT2
1.31      sakharuk   84: }
                     85:     $r->print(<<ENDMENUOUT3);
1.16      sakharuk   86: <br /><hr /><br />
                     87: <h1>And what page format do you prefer?</h1>
1.28      sakharuk   88: <input type="radio" name="layout" value="CBI"> Two columns landscape <br />
                     89: <input type="radio" name="layout" value="CAPA" checked>  Two columns portrait <br />
1.16      sakharuk   90: <input type="submit" value="Submit your choice">
1.3       sakharuk   91: </form>
                     92: </body>
                     93: </html>
1.28      sakharuk   94: ENDMENUOUT3
1.3       sakharuk   95: }
1.2       sakharuk   96: 
                     97: 
1.16      sakharuk   98: 
                     99: 
1.3       sakharuk  100: sub output_data {
                    101:     my $r = shift;
                    102:     $r->print(<<ENDPART);
                    103: <html>
                    104: <head>
                    105: <title>LON-CAPA output for printing</title>
                    106: </head>
                    107: <body bgcolor="FFFFFF">
                    108: <hr>
                    109: ENDPART
1.2       sakharuk  110: 
1.3       sakharuk  111:     my $choice = $ENV{'form.choice'};
1.16      sakharuk  112:     my $layout = $ENV{'form.layout'};
                    113:     my $laystyle = 'book';
1.2       sakharuk  114:     my $result = '';
1.34      sakharuk  115:     my $number_of_columns = 1;
1.5       sakharuk  116: 
1.3       sakharuk  117:     if ($choice eq 'Standard LaTeX output for current document') {
1.14      albertel  118:       my %moreenv;
                    119:       $moreenv{'form.grade_target'}='tex';
                    120:       $moreenv{'request.filename'}=$ENV{'form.url'};
                    121:       &Apache::lonnet::appenv(%moreenv);
                    122:       my $texversion=&Apache::lonnet::ssi($ENV{'form.url'});
                    123:       &Apache::lonnet::delenv('form.grade_target');
                    124:       $result .= $texversion;
1.29      sakharuk  125:       $result = &additional_cleanup($result);
1.34      sakharuk  126:       if ($ENV{'form.url'}=~m/\.page\s*$/) {($result,$number_of_columns) = &page_cleanup($result);}
1.20      sakharuk  127:     } elsif ($choice eq 'Standard LaTeX output for the primary sequence' or $choice eq 'Standard LaTeX output for whole primary sequence') {
1.18      sakharuk  128: #-- where is the primary sequence containing file?
                    129: 	my %moreenv;
                    130: 	my $symbolic = &Apache::lonnet::symbread($ENV{'form.url'});
                    131: 	$_ = $symbolic;
                    132: 	m/([^_]+)_/;
                    133: 	my $primary_sequence = '/res/'.$1;
                    134: #-- open and analyses the primary sequence
                    135: 	my $sequence_file=&Apache::lonnet::filelocation("",$primary_sequence);
                    136: 	my $sequencefilecontents=&Apache::lonnet::getfile($sequence_file);
                    137: 	my @master_seq = &content_map($sequencefilecontents);
                    138: #-- produce an output string
                    139: 	for (my $i=0;$i<=$#master_seq;$i++) {
                    140: 	    $_ = $master_seq[$i];
                    141: 	    m/\"(.*)\"/;
                    142:             $_ = $1;
                    143:             my $urlp = $1;
1.20      sakharuk  144: 	    if ($choice eq 'Standard LaTeX output for the primary sequence') {
1.21      sakharuk  145: 		if (/\.(problem|exam|quiz|assess|survey|form|library)/) {
1.20      sakharuk  146: 		    my %moreenv;
                    147: 		    $moreenv{'form.grade_target'}='tex';
                    148: 		    &Apache::lonnet::appenv(%moreenv);
                    149: 		    my $texversion=&Apache::lonnet::ssi($urlp);
                    150: 		    &Apache::lonnet::delenv('form.grade_target');
                    151: 		    $result .= $texversion;        
                    152: 		}
                    153: 	    } else {
1.18      sakharuk  154: 		$moreenv{'form.grade_target'}='tex';
                    155: 		&Apache::lonnet::appenv(%moreenv);
                    156: 		my $texversion=&Apache::lonnet::ssi($urlp);
                    157: 		&Apache::lonnet::delenv('form.grade_target');
1.20      sakharuk  158: 		$result .= $texversion;    
1.16      sakharuk  159: 	    }
1.28      sakharuk  160: 	}	
                    161: 	$result = &additional_cleanup($result);
1.13      sakharuk  162:     }  elsif ($choice eq 'Standard LaTeX output for the top level sequence') {
                    163: 	my @master_seq = ();
1.19      sakharuk  164: 	my @add_file_seq = ();
1.16      sakharuk  165: #-- where is the main sequence of the course?
1.13      sakharuk  166: 	my $main_seq = '/res/'.$ENV{'request.course.uri'};
                    167: 	my $file=&Apache::lonnet::filelocation("",$main_seq);
                    168: 	my $filecontents=&Apache::lonnet::getfile($file);
                    169: 	my @file_seq = &content_map($filecontents);
1.19      sakharuk  170: #-- do we have any other sequence inside?
                    171: 	my $i=0;
                    172: 	while ($i<=$#file_seq) {
                    173: 	    $_ = $file_seq[$i];
                    174: 	    if (/\.sequence$/) {
                    175: 		$file = &Apache::lonnet::filelocation("",$file_seq[$i]);
                    176: 		$filecontents=&Apache::lonnet::getfile($file);
                    177: 		@add_file_seq = &content_map($filecontents);
                    178: 		splice(@file_seq,$i,1,@add_file_seq);
                    179: 		@add_file_seq = ();
                    180: 		$i = -1;
                    181: 	    }
                    182: 	    $i++;
                    183: 	}
                    184: 	@master_seq = @file_seq;	
1.13      sakharuk  185: #-- produce an output string
                    186: 	for (my $i=0;$i<=$#master_seq;$i++) {
                    187: 	    $_ = $master_seq[$i];
                    188: 	    m/\"(.*)\"/;
                    189:             $_ = $1;
                    190:             my $urlp = $1;
1.21      sakharuk  191:             if (/\.(problem|exam|quiz|assess|survey|form|library)/) {
1.13      sakharuk  192: 		my %moreenv;
                    193: 		$moreenv{'form.grade_target'}='tex';
                    194: 		&Apache::lonnet::appenv(%moreenv);
                    195: 		my $texversion=&Apache::lonnet::ssi($urlp);
                    196: 		&Apache::lonnet::delenv('form.grade_target');
                    197: 		$result .= $texversion;        
                    198: 	    }
1.28      sakharuk  199: 	}	    
                    200: 	$result = &additional_cleanup($result);
1.31      sakharuk  201:     } elsif ($choice eq 'Subdirectory print') {      
                    202: 	my $subdirtoprint = &Apache::lonnet::filelocation("",$ENV{'form.url'});
                    203: 	$subdirtoprint =~ s/\/[^\/]+$//;
                    204: 	my @list_of_files = ();
                    205: 	my $localdirectory = $subdirtoprint;
                    206: 	$localdirectory =~ s/.*(\/res\/)/$1/;
                    207: 	my @content_directory = &Apache::lonnet::dirlist($localdirectory);
                    208: 	for (my $iy=0;$iy<=$#content_directory;$iy++) {
                    209: 	    my @tempo_array = split(/&/,$content_directory[$iy]);
                    210: 	    $content_directory[$iy] = $tempo_array[0];
                    211: 	    if ($content_directory[$iy] =~ m/^[^\.]+\.problem$/) {
                    212: 		push @list_of_files,$content_directory[$iy];
1.28      sakharuk  213: 	    }
1.13      sakharuk  214: 	}
1.31      sakharuk  215: 	$localdirectory =~ s/\/$//;
                    216: 	for (my $i=0;$i<=$#list_of_files;$i++) {
                    217: 	    my $urlp = $localdirectory.'/'.$list_of_files[$i];	     
                    218: 	    my %moreenv;
                    219: 	    $moreenv{'form.grade_target'}='tex';
                    220: 	    &Apache::lonnet::appenv(%moreenv);
                    221: 	    my $texversion=&Apache::lonnet::ssi($urlp);
                    222: 	    &Apache::lonnet::delenv('form.grade_target');
                    223: 	    $texversion =~ s/(\\begin{document})/$1 {\\tiny\\begin{verbatim}$urlp\\end{verbatim}}/;
                    224: 	    $result .= $texversion;   
                    225: 	}
                    226: 	$result = &additional_cleanup($result);
                    227: 	
                    228: 	
1.28      sakharuk  229: 
                    230: 
                    231: 
1.31      sakharuk  232: 	
1.7       sakharuk  233:     }
1.16      sakharuk  234: #-- corrections for the different page formats
                    235:     if ($layout eq 'CBI') {
                    236: 	$result =~ s/\\begin{document}/\\setlength{\\oddsidemargin}{-40pt}\\setlength{\\evensidemargin}{-60pt}\\setlength{\\topmargin}{200pt}\\setlength{\\textwidth}{4\.4in}\\setlength{\\textheight}{6\.8in}\\setlength{\\parindent}{20pt}\\setlength{\\marginparwidth}{90pt}\\setlength{\\textfloatsep}{8pt plus 2\.0pt minus 4\.0pt} \\begin{document}/;
                    237:         $laystyle = 'album';
                    238:     } elsif ($layout eq 'CAPA') {
                    239:         my $courseidinfo = $ENV{'request.role'};
                    240:         $_ = $courseidinfo;
                    241:         m/.*\/(.*)/;
                    242:         $courseidinfo = $ENV{'course.physnet_'.$1.'.description'};
1.34      sakharuk  243: #	$result =~ s/\\documentclass\[letterpaper\]{article}/\\documentclass\[twocolumn\]{article}/;
                    244: 	$result =~ s/\\documentclass\[letterpaper\]{article}/\\documentclass{article}/;
                    245: 	$result =~ s/\\begin{document}/\\textheight 25\.9cm\\oddsidemargin = -0\.57in\\evensidemargin = -0\.57in\\textwidth= 9cm\\newlength{\\minipagewidth}\\setlength{\\minipagewidth}{\\textwidth\/$number_of_columns-0\.2cm}\\renewcommand{\\ref}{\\keephidden\}\\begin{document}\\voffset=-1\.8cm\\setcounter{page}{1}\\parbox{\\minipagewidth}{\\noindent\\fbox{\\textbf{$ENV{'environment.firstname'} $ENV{'environment.lastname'}}}\\hskip 1\.4in $courseidinfo} \\vskip 5 mm /;	
1.27      sakharuk  246: 	$result =~ s/\\includegraphics{/\\includegraphics\[width=9\.0 cm\]{/g;
1.25      sakharuk  247: 	$result =~ s/(\\end{document})/\\newline\\noindent\\makebox\[9.0cm\]\[b\]{\\hrulefill}\\newline\\noindent\\tiny Dept\. of Physics and Astronomy, MSU\\makebox\[1.5cm\]\[b\]{\\hfill}LON-CAPA\\copyright MSU GNU\/GPL $1/;
1.34      sakharuk  248:         $result =~ s/(\\end{longtable}\s*)(\\newline\\noindent\\makebox\[9\.0cm\]\[b\]{\\hrulefill})/$2$1/g;
                    249:         $result =~ s/(\\end{longtable}\s*)\\newline/$1/g;
1.16      sakharuk  250:     }
1.23      sakharuk  251: #-- LaTeX corrections     
                    252:     my $first_comment = index($result,'<!--',0);
                    253:     while ($first_comment != -1) {
                    254: 	my $end_comment = index($result,'-->',$first_comment);
                    255: 	substr($result,$first_comment,$end_comment-$first_comment+3) = '';
                    256: 	$first_comment = index($result,'<!--',$first_comment);
                    257:     }
1.17      sakharuk  258:     $result =~ s/^\s+$//gm; #remove empty lines
                    259:     $result =~ s/%/\\%/g;   #corrects %
1.20      sakharuk  260:     $result =~ s/(\s)+/$1/g; #removes more than one empty space
1.23      sakharuk  261:     $result =~ s/\\\\\s*\\vskip/\\vskip/gm;
1.22      sakharuk  262:     $result =~ s/ (<|>|) / \$$1\$ /g; #corrects < or >
1.24      sakharuk  263:     $result =~ s/\\\\\s*\\noindent\s*(\\\\)+/\\\\\\noindent /g;
1.23      sakharuk  264:     $result =~ s/{\\par }\s*\\\\/\\\\/gm;
1.24      sakharuk  265: 	$result =~ s/\\\\\s+\[/ \[/g;
                    266:     $result =~ s/&#952;/\$\\theta\$/g; #converts theta from html into tex
1.29      sakharuk  267:     $result =~ s/\b_+\b/\\makebox\[1 cm\]\[b\]{\\hrulefill}/g;
1.7       sakharuk  268: #-- writing .tex file in prtspool 
1.16      sakharuk  269:     my $temp_file;
1.33      sakharuk  270:     my $filename = "/home/httpd/prtspool/$ENV{'user.name'}_$ENV{'user.domain'}_printout_".time."_".rand(10000000).".tex";
1.16      sakharuk  271:     unless ($temp_file = Apache::File->new('>'.$filename)) {
                    272: 	$r->log_error("Couldn't open $filename for output $!");
                    273: 	return SERVER_ERROR; 
                    274:     } 
                    275:     print $temp_file $result;
1.3       sakharuk  276: $r->print(<<FINALEND);
1.26      sakharuk  277: <meta http-equiv="Refresh" content="0; url=/cgi-bin/printout.pl?$filename&$laystyle">
1.3       sakharuk  278: </body>
                    279: </html>
                    280: FINALEND
                    281: }
1.2       sakharuk  282: 
1.28      sakharuk  283: sub additional_cleanup {
                    284:     my $result = shift;	
                    285:     my $first_app = index($result,'\documentclass',0);
                    286:     $first_app = index($result,'\documentclass',$first_app+5);
                    287:     while ($first_app != -1) {
                    288: 	my $second_app = index($result,'begin{document}',$first_app);
                    289: 	$first_app = rindex($result,'\end{document}',$first_app);
                    290: 	substr($result,$first_app,$second_app-$first_app+15) = '\vskip 3 mm';
                    291: 	$first_app = index($result,'\documentclass',$first_app+5);
                    292:     }
                    293:     return $result;
                    294: }
1.33      sakharuk  295: sub page_cleanup {
                    296:     my $result = shift;	
                    297:     $_ = $result;
                    298:     m/\\end{document}(\d*)$/;
1.34      sakharuk  299:     my $number_of_columns = $1;
1.33      sakharuk  300:     my $insert = '{';
1.34      sakharuk  301:     for (my $id=1;$id<=$number_of_columns;$id++) { $insert .='l'; }
1.33      sakharuk  302:     $insert .= '}';
1.34      sakharuk  303:     $result =~ s/(\\begin{longtable})INSERTTHEHEADOFLONGTABLE/$1$insert/g;
                    304:     $result =~ s/&\s*REMOVETHEHEADOFLONGTABLE\\\\/\\\\/g;
                    305:     $result =~ s/(\\vskip\s*\d+\s*mm)/}\\\\\\parbox{\\minipagewidth}{/g;
1.35    ! sakharuk  306:     $result =~ s/\\parbox{\\minipagewidth}{}\s*\\\\\s*(\\parbox{\\minipagewidth})/$1/g;
1.34      sakharuk  307:     return $result,$number_of_columns;
1.33      sakharuk  308: }
1.6       sakharuk  309: 
1.3       sakharuk  310: sub content_map {
1.7       sakharuk  311: #-- find a list of files to print
1.3       sakharuk  312:     my $map_string = shift;
1.5       sakharuk  313:     my @number_seq = ();
1.7       sakharuk  314:     my @file_seq = ();
1.5       sakharuk  315:     my $startlink = index($map_string,'<link',0);
1.7       sakharuk  316:     my $endlink = index($map_string,'</link>',$startlink);
                    317:     my $chunk = substr($map_string,$startlink,$endlink-$startlink+7);
                    318:     $_ = $chunk;
                    319:     m/from=\"(\d+)\"/;
                    320:     push @number_seq,$1;
1.5       sakharuk  321:     while ($startlink != -1) {
1.7       sakharuk  322: 	$endlink = index($map_string,'</link>',$startlink);
                    323: 	$chunk = substr($map_string,$startlink,$endlink-$startlink+7);
1.5       sakharuk  324: 	substr($map_string,$startlink,$endlink-$startlink+7) = '';
                    325: 	$_ = $chunk;
                    326:         m/to=\"(\d+)\"/;
                    327: 	push @number_seq,$1;
1.13      sakharuk  328: 	$startlink = index($map_string,'from="'.$1.'"',$startlink);
1.18      sakharuk  329: 	$startlink = rindex($map_string,'<link ',$startlink);
1.5       sakharuk  330:     }
1.7       sakharuk  331:     my $stalink = index($map_string,' to="'.$number_seq[0].'"',$startlink);
                    332:     while ($stalink != -1) {
                    333: 	$startlink = rindex($map_string,'<link ',$stalink);
                    334: 	$endlink = index($map_string,'</link>',$startlink);
                    335: 	$chunk = substr($map_string,$startlink,$endlink-$startlink+7);
                    336: 	substr($map_string,$startlink,$endlink-$startlink+7) = '';
                    337: 	$_ = $chunk;
                    338:         m/from=\"(\d+)\"/;
                    339: 	unshift @number_seq,$1;
                    340: 	$stalink = index($map_string,' to="'.$number_seq[0].'"',0);
                    341:     }
                    342:     for (my $i=0;$i<=$#number_seq;$i++) {
                    343: 	$stalink = index($map_string,' id="'.$number_seq[$i].'"',0);
1.13      sakharuk  344:         {    
                    345: 	    my $ahed1 = index($map_string,'src="',$stalink);
                    346: 	    my $ahed2 = index($map_string,'</resource>',$stalink);
                    347: 	    if ($ahed1 != -1) {
                    348: 		if ($ahed1 < $ahed2) {
                    349: 		    $startlink = $ahed1;
                    350: 		} else {
                    351: 		    $startlink = rindex($map_string,'src="',$stalink);
                    352: 		}
                    353: 	    } else {
                    354: 		$startlink = rindex($map_string,'src="',$stalink);
                    355: 	    }
                    356: 
                    357: 	}
1.7       sakharuk  358: 	$startlink = index($map_string,'"',$startlink);
                    359: 	$endlink = index($map_string,'"',$startlink+1);
                    360: 	$chunk = substr($map_string,$startlink,$endlink-$startlink+1);
                    361: 	push @file_seq,$chunk;
                    362:     }
                    363:     return @file_seq;
                    364: }
1.5       sakharuk  365: 
1.3       sakharuk  366: 
                    367: 
                    368: sub handler {
                    369: 
                    370:     my $r = shift;
                    371:     $r->content_type('text/html');
                    372:     $r->send_http_header;
                    373: 
                    374: #-- start form
                    375:     &headerform($r);
                    376: #-- menu for output
1.16      sakharuk  377:     unless  ($ENV{'form.phase'}) {
1.3       sakharuk  378: 	&menu_for_output($r);
                    379:     }
                    380: #-- core part 
                    381:     if ($ENV{'form.phase'} eq 'two') {
                    382: 	&output_data($r);
                    383:     }
1.2       sakharuk  384:     return OK;
                    385: 
1.1       www       386: } 
                    387: 
                    388: 1;
                    389: __END__
1.6       sakharuk  390: 
                    391: 
1.13      sakharuk  392: 
                    393: 
                    394: #### Test block
1.6       sakharuk  395: #    my $ere;
                    396: #    foreach $ere (%ENV) {
1.13      sakharuk  397: #	$result .= ' SS '.$ere.' => '.$ENV{$ere}.' FF '."\n\n";
1.6       sakharuk  398: #    }
1.13      sakharuk  399: ####

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