1: # The LearningOnline Network
2: # Printout
3: #
4: # $Id: lonprintout.pm,v 1.34 2002/06/27 18:47:59 sakharuk Exp $
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: #
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: #
38: # 9/17 Alex Sakharuk
39: #
40: package Apache::lonprintout;
41:
42: use strict;
43: use Apache::Constants qw(:common :http);
44: use Apache::lonxml;
45: use Apache::lonnet;
46: use Apache::inputtags;
47: use Apache::edit;
48: use Apache::File();
49: use POSIX qw(strftime);
50:
51:
52: sub headerform {
53: my $r = shift;
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">
61: <h1>What do you want to print? Make a choice.</h1><br />
62: ENDHEADER
63: }
64:
65:
66: sub menu_for_output {
67: my $r = shift;
68: $r->print(<<ENDMENUOUT1);
69: <input type="hidden" name="phase" value="two">
70: <input type="hidden" name="url" value="$ENV{'form.postdata'}">
71: <input type="radio" name="choice" value="Standard LaTeX output for current document" checked> Current document
72: (you will print what you see on the screen)<br />
73: <input type="radio" name="choice" value="Standard LaTeX output for the primary sequence"> All problems from the primary sequence<br />
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 />
75: <input type="radio" name="choice" value="Standard LaTeX output for the top level sequence"> All problems from the top level sequence<br />
76: <br />
77: ENDMENUOUT1
78: my $subdirtoprint = &Apache::lonnet::filelocation("",$ENV{'form.url'});
79: $subdirtoprint =~ s/\/[^\/]+$//;
80: if (&Apache::lonnet::allowed('bre',$subdirtoprint) eq 'F') {
81: $r->print(<<ENDMENUOUT2);
82: <input type="radio" name="choice" value="Subdirectory print"> All problems from current subdirectory (where this particular problem is)<br />
83: ENDMENUOUT2
84: }
85: $r->print(<<ENDMENUOUT3);
86: <br /><hr /><br />
87: <h1>And what page format do you prefer?</h1>
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 />
90: <input type="submit" value="Submit your choice">
91: </form>
92: </body>
93: </html>
94: ENDMENUOUT3
95: }
96:
97:
98:
99:
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
110:
111: my $choice = $ENV{'form.choice'};
112: my $layout = $ENV{'form.layout'};
113: my $laystyle = 'book';
114: my $result = '';
115: my $number_of_columns = 1;
116:
117: if ($choice eq 'Standard LaTeX output for current document') {
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;
125: $result = &additional_cleanup($result);
126: if ($ENV{'form.url'}=~m/\.page\s*$/) {($result,$number_of_columns) = &page_cleanup($result);}
127: } elsif ($choice eq 'Standard LaTeX output for the primary sequence' or $choice eq 'Standard LaTeX output for whole primary sequence') {
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 = $1;
144: if ($choice eq 'Standard LaTeX output for the primary sequence') {
145: if (/\.(problem|exam|quiz|assess|survey|form|library)/) {
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 {
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');
158: $result .= $texversion;
159: }
160: }
161: $result = &additional_cleanup($result);
162: } elsif ($choice eq 'Standard LaTeX output for the top level sequence') {
163: my @master_seq = ();
164: my @add_file_seq = ();
165: #-- where is the main sequence of the course?
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);
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;
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;
191: if (/\.(problem|exam|quiz|assess|survey|form|library)/) {
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: }
199: }
200: $result = &additional_cleanup($result);
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];
213: }
214: }
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:
229:
230:
231:
232:
233: }
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'};
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 /;
246: $result =~ s/\\includegraphics{/\\includegraphics\[width=9\.0 cm\]{/g;
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/;
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;
250: }
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: }
258: $result =~ s/^\s+$//gm; #remove empty lines
259: $result =~ s/%/\\%/g; #corrects %
260: $result =~ s/(\s)+/$1/g; #removes more than one empty space
261: $result =~ s/\\\\\s*\\vskip/\\vskip/gm;
262: $result =~ s/ (<|>|) / \$$1\$ /g; #corrects < or >
263: $result =~ s/\\\\\s*\\noindent\s*(\\\\)+/\\\\\\noindent /g;
264: $result =~ s/{\\par }\s*\\\\/\\\\/gm;
265: $result =~ s/\\\\\s+\[/ \[/g;
266: $result =~ s/θ/\$\\theta\$/g; #converts theta from html into tex
267: $result =~ s/\b_+\b/\\makebox\[1 cm\]\[b\]{\\hrulefill}/g;
268: #-- writing .tex file in prtspool
269: my $temp_file;
270: my $filename = "/home/httpd/prtspool/$ENV{'user.name'}_$ENV{'user.domain'}_printout_".time."_".rand(10000000).".tex";
271: unless ($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;
276: $r->print(<<FINALEND);
277: <meta http-equiv="Refresh" content="0; url=/cgi-bin/printout.pl?$filename&$laystyle">
278: </body>
279: </html>
280: FINALEND
281: }
282:
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: }
295: sub page_cleanup {
296: my $result = shift;
297: $_ = $result;
298: m/\\end{document}(\d*)$/;
299: my $number_of_columns = $1;
300: my $insert = '{';
301: for (my $id=1;$id<=$number_of_columns;$id++) { $insert .='l'; }
302: $insert .= '}';
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;
306: return $result,$number_of_columns;
307: }
308:
309: sub content_map {
310: #-- find a list of files to print
311: my $map_string = shift;
312: my @number_seq = ();
313: my @file_seq = ();
314: my $startlink = index($map_string,'<link',0);
315: my $endlink = index($map_string,'</link>',$startlink);
316: my $chunk = substr($map_string,$startlink,$endlink-$startlink+7);
317: $_ = $chunk;
318: m/from=\"(\d+)\"/;
319: push @number_seq,$1;
320: while ($startlink != -1) {
321: $endlink = index($map_string,'</link>',$startlink);
322: $chunk = substr($map_string,$startlink,$endlink-$startlink+7);
323: substr($map_string,$startlink,$endlink-$startlink+7) = '';
324: $_ = $chunk;
325: m/to=\"(\d+)\"/;
326: push @number_seq,$1;
327: $startlink = index($map_string,'from="'.$1.'"',$startlink);
328: $startlink = rindex($map_string,'<link ',$startlink);
329: }
330: my $stalink = index($map_string,' to="'.$number_seq[0].'"',$startlink);
331: while ($stalink != -1) {
332: $startlink = rindex($map_string,'<link ',$stalink);
333: $endlink = index($map_string,'</link>',$startlink);
334: $chunk = substr($map_string,$startlink,$endlink-$startlink+7);
335: substr($map_string,$startlink,$endlink-$startlink+7) = '';
336: $_ = $chunk;
337: m/from=\"(\d+)\"/;
338: unshift @number_seq,$1;
339: $stalink = index($map_string,' to="'.$number_seq[0].'"',0);
340: }
341: for (my $i=0;$i<=$#number_seq;$i++) {
342: $stalink = index($map_string,' id="'.$number_seq[$i].'"',0);
343: {
344: my $ahed1 = index($map_string,'src="',$stalink);
345: my $ahed2 = index($map_string,'</resource>',$stalink);
346: if ($ahed1 != -1) {
347: if ($ahed1 < $ahed2) {
348: $startlink = $ahed1;
349: } else {
350: $startlink = rindex($map_string,'src="',$stalink);
351: }
352: } else {
353: $startlink = rindex($map_string,'src="',$stalink);
354: }
355:
356: }
357: $startlink = index($map_string,'"',$startlink);
358: $endlink = index($map_string,'"',$startlink+1);
359: $chunk = substr($map_string,$startlink,$endlink-$startlink+1);
360: push @file_seq,$chunk;
361: }
362: return @file_seq;
363: }
364:
365:
366:
367: sub handler {
368:
369: my $r = shift;
370: $r->content_type('text/html');
371: $r->send_http_header;
372:
373: #-- start form
374: &headerform($r);
375: #-- menu for output
376: unless ($ENV{'form.phase'}) {
377: &menu_for_output($r);
378: }
379: #-- core part
380: if ($ENV{'form.phase'} eq 'two') {
381: &output_data($r);
382: }
383: return OK;
384:
385: }
386:
387: 1;
388: __END__
389:
390:
391:
392:
393: #### Test block
394: # my $ere;
395: # foreach $ere (%ENV) {
396: # $result .= ' SS '.$ere.' => '.$ENV{$ere}.' FF '."\n\n";
397: # }
398: ####
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