Annotation of loncom/homework/structuretags.pm, revision 1.234
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.234 ! albertel 4: # $Id: structuretags.pm,v 1.233 2004/02/10 22:11:37 www Exp $
1.74 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: #
1.33 albertel 28: # 2/19 Guy
1.44 ng 29: # 6/26/2001 fixed extra web display at end of <web></web> tags
1.60 www 30: # 8/17,8/18,8/20 Gerd Kortemeyer
1.54 www 31:
1.133 sakharuk 32:
1.1 albertel 33: package Apache::structuretags;
34:
35: use strict;
36: use Apache::lonnet;
1.101 sakharuk 37: use Apache::File();
1.147 www 38: use Apache::lonmenu;
1.210 albertel 39: use Apache::lonlocal;
1.231 sakharuk 40: use Apache::lonxml;
1.1 albertel 41:
1.78 harris41 42: BEGIN {
1.193 www 43: &Apache::lonxml::register('Apache::structuretags',('block','languageblock','instructorcomment','while','randomlist','problem','library','web','tex','part','preduedate','postanswerdate','solved','notsolved','startouttext','endouttext',
1.197 www 44: 'simpleeditbutton','definetag'));
1.10 albertel 45: }
46:
47: sub start_web {
1.159 albertel 48: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.200 albertel 49: my $bodytext=&Apache::lonxml::get_all_text("/web",$parser);
50: if ($target eq 'web') {
51: return $bodytext;
1.159 albertel 52: }
53: return '';
1.10 albertel 54: }
55:
56: sub end_web {
1.44 ng 57: return '';
1.10 albertel 58: }
59:
60: sub start_tex {
1.159 albertel 61: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.198 sakharuk 62: my $result='';
1.200 albertel 63: my $bodytext=&Apache::lonxml::get_all_text("/tex",$parser);
64: if ($target eq 'tex') {
65: return $bodytext.' ';
1.159 albertel 66: }
1.198 sakharuk 67: return $result;;
1.10 albertel 68: }
69:
70: sub end_tex {
1.44 ng 71: return '';
1.9 albertel 72: }
73:
1.48 albertel 74: sub page_start {
1.159 albertel 75: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
76: my %found;
1.207 albertel 77: foreach my $taginside (@$tagstack) {
1.159 albertel 78: foreach my $taglookedfor ('html','body','form') {
79: if ($taginside =~ /^$taglookedfor$/i) {$found{$taglookedfor} = 1;}
80: }
81: }
82:
83: my $result;
84: my $head_tag_start;
85: if (!defined($found{'html'})) {
86: $result=&Apache::londefdef::start_html($target,$token,$tagstack,
87: $parstack,$parser,$safeeval);
1.218 albertel 88: $head_tag_start='<head>'.&Apache::lonmenu::registerurl(undef,$target);
1.159 albertel 89: }
90: my $body_tag_start;
91: if (!defined($found{'body'})) {
92: $body_tag_start='<body onLoad="'.&Apache::lonmenu::loadevents().'" '.
93: 'onUnload="'.&Apache::lonmenu::unloadevents().'" ';
94: my $background=&Apache::lonxml::get_param('background',$parstack,
95: $safeeval);
1.199 www 96: if ($ENV{'browser.imagesuppress'} eq 'on') { $background=''; }
1.159 albertel 97: if ($background) {
98: $Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=
99: $background;
100: $body_tag_start.='background="'.$background.'" ';
101: } else {
102: my $bgcolor=&Apache::lonxml::get_param('bgcolor',$parstack,
103: $safeeval);
1.199 www 104: if (($bgcolor) && ($ENV{'browser.blackwhite'} ne 'on')) {
1.159 albertel 105: $body_tag_start.='bgcolor="'.$bgcolor.'" ';
106: } else {
107: $body_tag_start.='bgcolor="#ffffff"';
108: }
1.199 www 109: }
110: if ($ENV{'browser.fontenhance'} eq 'on') {
111: $body_tag_start.=' style="font-size: x-large;" ';
1.159 albertel 112: }
113: $body_tag_start.='>'.&Apache::lonmenu::menubuttons(undef,$target,1);
114: if ($target eq 'web' && $ENV{'request.state'} ne 'construct') {
1.165 albertel 115: my ($symb,undef,undef,undef,$publicuser)=
116: &Apache::lonxml::whichuser();
117: if ($symb eq '' && !$publicuser) {
1.159 albertel 118: my $help = &Apache::loncommon::help_open_topic("Ambiguous_Reference");
1.211 albertel 119: $help=&mt("Browsing resource, all submissions are temporary.")."<br />";
1.159 albertel 120: $body_tag_start.=$help;
121: }
122: }
123: }
124: my $form_tag_start;
125: if (!defined($found{'form'})) {
126: $form_tag_start='<form name="lonhomework" method="POST" action="'.
127: $ENV{'request.uri'}.'">';
128: }
129: return ($result,$head_tag_start,$body_tag_start,$form_tag_start);
1.105 albertel 130: }
131:
1.141 matthew 132: #use Time::HiRes();
1.105 albertel 133: sub get_resource_name {
1.159 albertel 134: my ($parstack,$safeeval)=@_;
1.204 albertel 135: if (defined($Apache::lonhomework::name)) {
136: return $Apache::lonhomework::name;
137: }
1.159 albertel 138: my $name=&Apache::lonnet::gettitle();
139: if ($name eq '') {
140: $name=&Apache::lonnet::EXT('resource.title');
141: if ($name eq 'con_lost') { $name = ''; }
142: }
1.204 albertel 143: if ($name!~/\S+/) {
144: $name=$ENV{'request.uri'};
1.205 albertel 145: $name=~s-.*/([^/]+)$-$1-;
1.204 albertel 146: }
1.159 albertel 147: $Apache::lonhomework::name=$name;
148: return $name;
1.105 albertel 149: }
150:
151: sub setup_rndseed {
1.159 albertel 152: my ($safeeval)=@_;
153: my $rndseed;
1.162 albertel 154: my ($symb)=&Apache::lonxml::whichuser();
155: if ($ENV{'request.state'} eq "construct" || $symb eq '') {
1.159 albertel 156: $rndseed=$ENV{'form.rndseed'};
157: if (!$rndseed) {
1.162 albertel 158: $rndseed=$Apache::lonhomework::history{'rndseed'};
159: if (!$rndseed) {
160: $rndseed=time;
161: $ENV{'form.rndseed'}=$rndseed;
162: }
163: }
1.210 albertel 164: if ($ENV{'form.resetdata'} eq &mt('New Problem Variation') ||
165: $ENV{'form.newrandomization'} eq &mt('New Randomization')) {
1.190 albertel 166: srand(time);
167: $rndseed=int(rand(2100000000));
1.159 albertel 168: $ENV{'form.rndseed'}=$rndseed;
1.180 albertel 169: delete($ENV{'form.resetdata'});
170: delete($ENV{'form.newrandomization'});
1.159 albertel 171: }
1.187 albertel 172: if (defined($rndseed) && $rndseed ne int($rndseed)) {
173: $rndseed=join(',',&Math::Random::random_seed_from_phrase($rndseed));
174: }
1.221 albertel 175: if ($safeeval) {
176: &Apache::lonxml::debug("Setting rndseed to $rndseed");
177: &Apache::run::run('$external::randomseed='.$rndseed.';',$safeeval);
178: }
1.159 albertel 179: }
180: return $rndseed;
1.105 albertel 181: }
182:
183: sub problem_edit_header {
1.159 albertel 184: return '<input type="hidden" name="submitted" value="edit" />
1.210 albertel 185: <input type="hidden" name="problemmode" value="'.&mt('Edit').'" />
186: <input type="submit" name="problemmode" value="'.&mt('Discard Edits and View').'" />
187: <input type="submit" name="problemmode" value="'.&mt('EditXML').'" />
188: <input type="submit" name="Undo" value="'.&mt('undo').'" /> <hr />
189: <input type="submit" name="submit" value="'.&mt('Submit Changes and Edit').'" />
1.229 www 190: <input type="submit" name="submit" value="'.&mt('Submit Changes and View').'" /><table><tr><td>'.
191: &Apache::loncommon::help_open_topic('Problem_Editor_XML_Index',
192: 'Problem Editing Help').'</td><td>'.
193: &Apache::loncommon::help_open_faq(5).
194: &Apache::loncommon::help_open_bug('Authoring').'</td></tr></table>'.
1.228 www 195: '<table border="0"><tr><td bgcolor="#DDDDDD">';
1.105 albertel 196: }
197:
198: sub problem_edit_footer {
1.210 albertel 199: return '</td></tr></table><br /><input type="submit" name="submit" value="'.&mt('Submit Changes and Edit').'" />
200: <input type="submit" name="submit" value="'.&mt('Submit Changes and View').'" />';
1.105 albertel 201: }
202:
203: sub problem_web_to_edit_header {
1.159 albertel 204: my ($rndseed)=@_;
1.210 albertel 205: my $result.='<input type="hidden" name="problemmode" value="'.&mt('View').'" />
206: <input type="submit" name="problemmode" value="'.&mt('Edit').'" />
207: <input type="submit" name="problemmode" value="'.&mt('EditXML').'" />
208: <input type="submit" name="newrandomization" value="'.&mt('New Randomization').'" />
209: <input type="submit" name="resetdata" value="'.&mt('Reset Submissions').'" />
210: <nobr><input type="submit" name="changerandseed" value="'.&mt('Change Random Seed To:').'" />
1.175 albertel 211: <input type="text" name="rndseed" width="10" value="'.
212: $rndseed.'"
213: onChange="javascript:document.lonhomework.changerandseed.click()" /></nobr>
1.105 albertel 214: <input type="checkbox" name="showallfoils" ';
1.159 albertel 215: if (defined($ENV{'form.showallfoils'})) { $result.='checked="on"'; }
1.228 www 216: $result.= ' />'.&mt(' Show All Foils').
217: &Apache::loncommon::help_open_topic('Problem_Editor_Testing_Area','Testing Problems').
218: '<hr />';
1.159 albertel 219: my $numtoanalyze=$ENV{'form.numtoanalyze'};
1.176 albertel 220: if (!$numtoanalyze) { $numtoanalyze=20; }
1.210 albertel 221: $result.= '<input type="submit" name="problemmode" value='.
222: &mt('"Calculate answers').'" /> for
1.136 albertel 223: <input type="text" name="numtoanalyze" value="'.
1.210 albertel 224: $numtoanalyze.'" size="5" /> '.&mt('versions of this problem').
225: '.'.&Apache::loncommon::help_open_topic("Analyze_Problem",
1.176 albertel 226: '',undef,undef,300).
1.210 albertel 227: '<hr />';
1.159 albertel 228: return $result;
1.48 albertel 229: }
230:
1.65 albertel 231: sub initialize_storage {
1.159 albertel 232: %Apache::lonhomework::results=();
1.162 albertel 233: %Apache::lonhomework::history=();
1.159 albertel 234: my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser();
1.162 albertel 235: if ($ENV{'request.state'} eq 'construct' || $symb eq '') {
1.159 albertel 236: %Apache::lonhomework::history=
237: &Apache::lonnet::tmprestore($ENV{'request.uri'},'',$domain,$name);
238: my ($temp)=keys %Apache::lonhomework::history ;
239: &Apache::lonxml::debug("Return message of $temp");
240: } else {
241: %Apache::lonhomework::history=
242: &Apache::lonnet::restore($symb,$courseid,$domain,$name);
243: }
244: #ignore error conditions
1.67 albertel 245: my ($temp)=keys %Apache::lonhomework::history ;
1.159 albertel 246: if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); }
1.65 albertel 247: }
248:
249: # -------------------------------------------------------------finalize_storage
250: # Stores away the result has to a student's environment
251: # checks form.grade_ for specific values, other wises stores
252: # to the running users environment
253: sub finalize_storage {
1.159 albertel 254: my $result;
255: my ($temp) = keys %Apache::lonhomework::results;
256: if ( $temp ne '' ) {
257: my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser();
1.162 albertel 258: if ($ENV{'request.state'} eq 'construct' || $symb eq '') {
259: $Apache::lonhomework::results{'rndseed'}=$ENV{'form.rndseed'};
1.159 albertel 260: $result=&Apache::lonnet::tmpstore(\%Apache::lonhomework::results,
261: $ENV{'request.uri'},'',$domain,$name);
262: &Apache::lonxml::debug('Construct Store return message:'.$result);
263: } else {
264: $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,
265: $symb,$courseid,$domain,$name);
266: &Apache::lonxml::debug('Store return message:'.$result);
267: }
1.67 albertel 268: }
1.159 albertel 269: return $result;
1.65 albertel 270: }
271:
272: sub checkout_msg {
1.211 albertel 273: my %lt=&Apache::lonlocal::texthash(
274: 'resource'=>'The resource needs to be checked out',
275: 'id_expln'=>'As a resource gets checked out, a unique timestamped ID is given to it, and a permanent record is left in the system.',
276: 'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',
277: 'checkout'=>'Check out Exam for Viewing',
278: 'checkout?'=>'Check out Exam?');
1.159 albertel 279: return (<<ENDCHECKOUT);
1.211 albertel 280: <h2>$lt{'resource'}</h2>
281: <p>$lt{'id_expln'}</p>
282: <font color="red">
283: <p>$lt{'warning'}</p>
1.91 albertel 284: </font>
285: <form name="checkout" method="POST" action="$ENV{'request.uri'}">
286: <input type="hidden" name="doescheckout" value="yes" />
1.211 albertel 287: <input type="button" name="checkoutbutton" value="$lt{'checkout'}" onClick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />
1.65 albertel 288: </form>
289: ENDCHECKOUT
290: }
291:
1.204 albertel 292: sub init_problem_globals {
293: my ($type)=@_;
294: #initialize globals
295: if ($type eq 'problem') {
296: $Apache::inputtags::part='0';
297: @Apache::inputtags::partlist=('0');
298: $Apache::lonhomework::problemstatus=
299: &Apache::lonnet::EXT('resource.0.problemstatus');
300: } else {
301: $Apache::inputtags::part='';
302: @Apache::inputtags::partlist=();
303: $Apache::lonhomework::problemstatus='';
304: }
305: @Apache::inputtags::responselist = ();
306: @Apache::inputtags::importlist = ();
307: @Apache::inputtags::previous=();
308: @Apache::inputtags::previous_version=();
309: $Apache::structuretags::printanswer='No';
310: @Apache::structuretags::whileconds=();
311: @Apache::structuretags::whilebody=();
312: @Apache::structuretags::whileline=();
313: $Apache::lonhomework::scantronmode=0;
314: undef($Apache::lonhomework::name);
315:
316: }
317:
318: sub reset_problem_globals {
319: my ($type)=@_;
320: undef(%Apache::lonhomework::history);
321: undef(%Apache::lonhomework::results);
322: undef($Apache::inputtags::part);
1.208 albertel 323: #don't undef this, lonhomework.pm takes care of this, we use this to
324: #detect if we try to do 2 problems in one file
325: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 326: undef($Apache::lonhomework::name);
327: }
328:
1.9 albertel 329: sub start_problem {
1.159 albertel 330: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.19 albertel 331:
1.184 albertel 332: if ( $Apache::inputtags::part ne '' ||
333: $Apache::lonhomework::parsing_a_problem) {
334: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
335: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser);
1.159 albertel 336: return '';
337: }
1.184 albertel 338:
339: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 340: &init_problem_globals('problem');
1.166 albertel 341:
342: if (defined($ENV{'scantron.maxquest'})) {
343: $Apache::lonhomework::scantronmode=1;
344: }
1.161 albertel 345:
1.159 albertel 346: if ($target ne 'analyze') {
347: &initialize_storage();
348: if ($target eq 'web') {
349: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
350: }
351: $Apache::lonhomework::type=&Apache::lonnet::EXT('resource.0.type');
352: &Apache::lonxml::debug("Found this to be of type :$Apache::lonhomework::type:");
353: }
1.164 albertel 354: if ($Apache::lonhomework::type eq '' ) {
1.159 albertel 355: my $uri=$ENV{'request.uri'};
356: if ($uri=~/\.(\w+)$/) {
357: $Apache::lonhomework::type=$1;
358: &Apache::lonxml::debug("Using type of $1");
359: } else {
360: $Apache::lonhomework::type='problem';
361: &Apache::lonxml::debug("Using default type, problem, :$uri:");
362: }
1.87 albertel 363: }
1.58 www 364:
1.159 albertel 365: #added vars to the scripting enviroment
1.213 albertel 366: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.24 albertel 367: &Apache::run::run($expression,$safeeval);
1.159 albertel 368: my $status;
369: my $accessmsg;
370:
371: #should get back a <html> or the neccesary stuff to start XML/MathML
372: my ($result,$head_tag_start,$body_tag_start,$form_tag_start)=
373: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
374: if ($target eq 'tex' and $ENV{'request.symb'} =~ m/\.page_/) {$result='';}
375:
376: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval); }
377: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
378: $target eq 'tex') {
379: #handle exam checkout
380: if ($Apache::lonhomework::type eq 'exam') {
381: my $token=
382: $Apache::lonhomework::history{"resource.0.outtoken"};
383: if (($ENV{'form.doescheckout'}) && (!$token)) {
384: $token=&Apache::lonxml::maketoken();
385: $Apache::lonhomework::history{"resource.0.outtoken"}=
386: $token;
387: }
388: $body_tag_start.=&Apache::lonxml::printtokenheader($target,$token);
1.142 albertel 389: }
1.159 albertel 390:
391: #handle rand seed in construction space
392: my $rndseed=&setup_rndseed($safeeval);
1.162 albertel 393: my ($symb)=&Apache::lonxml::whichuser();
1.163 albertel 394: if ($ENV{'request.state'} ne "construct" && $symb eq '') {
1.162 albertel 395: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
396: $rndseed.'" />'.
397: '<input type="submit" name="resetdata"
1.211 albertel 398: value="'.&mt('New Problem Variation').'" />'.
1.164 albertel 399: '<input type="hidden" name="username"
1.185 albertel 400: value="'.$ENV{'form.username'}.'" /> <br />';
1.162 albertel 401: }
1.159 albertel 402: ($status,$accessmsg) = &Apache::lonhomework::check_access('0');
403: push (@Apache::inputtags::status,$status);
404: my $expression='$external::datestatus="'.$status.'";';
405: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
406: &Apache::run::run($expression,$safeeval);
407: &Apache::lonxml::debug("Got $status");
408: if (( $status eq 'CLOSED' ) ||
409: ( $status eq 'UNCHECKEDOUT') ||
410: ( $status eq 'BANNED') ||
1.216 albertel 411: ( $status eq 'UNAVAILABLE') ||
412: ( $status eq 'INVALID_ACCESS')) {
1.159 albertel 413: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser);
414: if ( $target eq "web" ) {
415: $result.= $head_tag_start.'</head>';
416: my $msg=$body_tag_start;
417: if ($status eq 'UNAVAILABLE') {
1.211 albertel 418: $result.='<h1>'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</h1>';
1.159 albertel 419: } else {
1.211 albertel 420: $result.='<h1>'.&mt('Not open to be viewed').'</h1>';
1.159 albertel 421: }
1.216 albertel 422: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.159 albertel 423: $msg.='The problem '.$accessmsg;
424: } elsif ($status eq 'UNCHECKEDOUT') {
425: $msg.=&checkout_msg;
426: }
427: $result.=$msg.'<br />';
428: } elsif ($target eq 'tex') {
429: $result.='\begin{document}\noindent \vskip 1 mm \begin{minipage}{\textwidth}\vskip 0 mm';
430: if ($status eq 'UNAVAILABLE') {
1.211 albertel 431: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 432: } else {
1.211 albertel 433: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 434: }
435: }
436: } elsif ($target eq 'web') {
437: my $name= &get_resource_name($parstack,$safeeval);
1.227 albertel 438: $result.="$head_tag_start<title>$name</title></head>
1.158 sakharuk 439: $body_tag_start \n $form_tag_start".
1.227 albertel 440: '<input type="hidden" name="submitted" value="yes" />';
441: # create a page header and exit
442: if ($ENV{'request.state'} eq "construct") {
443: $result.= &problem_web_to_edit_header($ENV{'form.rndseed'});
444: }
445: # if we are viewing someone else preserve that info
446: if (defined $ENV{'form.grade_symb'}) {
447: foreach my $field ('symb','courseid','domain','username') {
448: $result .= '<input type="hidden" name="grade_'.$field.
449: '" value="'.$ENV{"form.grade_$field"}.'" />'."\n";
1.159 albertel 450: }
451: }
452: } elsif ($target eq 'tex') {
1.192 sakharuk 453: my $startminipage = '';
1.191 sakharuk 454: if (not $ENV{'form.problem_split'}=~/yes/) {
1.192 sakharuk 455: $startminipage = '\begin{minipage}{\textwidth}';
1.178 sakharuk 456: }
1.159 albertel 457: my $id = $Apache::inputtags::part;
458: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.223 sakharuk 459: my $packages=&Apache::lonnet::metadata($ENV{'request.uri'},'packages');
460: my @packages = split /,/,$packages;
461: my $allow_print_points = 0;
462: foreach my $partial_key (@packages) {
1.230 albertel 463: if ($partial_key=~m/^part_0$/) {
1.223 sakharuk 464: $allow_print_points=1;
1.159 albertel 465: }
466: }
467: my $duedate = &Apache::lonnet::EXT("resource.$id.duedate");
468: $duedate = POSIX::strftime("%c",localtime($duedate));
469: my $temp_file;
470: my $filename = "/home/httpd/prtspool/$ENV{'user.name'}_$ENV{'user.domain'}_printout.due";
471: if (-e $filename) {
472: $temp_file = Apache::File->new($filename);
473: } else {
474: $temp_file = Apache::File->new('>>'.$filename);
475: }
476: my @due_file_content = <$temp_file>;
477: my $due_file_content = $due_file_content[$#due_file_content];
478: chomp $due_file_content;
1.231 sakharuk 479: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval));
1.159 albertel 480: if ($due_file_content ne $duedate) {
481: $temp_file = Apache::File->new('>'.$filename);
482: print $temp_file "$duedate\n";
483: if (not $ENV{'request.symb'} =~ m/\.page_/) {
484: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
1.206 sakharuk 485: $result .= '\begin{document} \typeout{STAMPOFPASSEDRESOURCESTART Resource <h2>"'.$name_of_resourse.'"</h2> located in <br /><small><b>'.$ENV{'request.uri'}.'</b></small><br /> STAMPOFPASSEDRESOURCEEND} \noindent\textit{Due date: '.$duedate.'} \vskip 1 mm\noindent '.$startminipage.'\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
1.159 albertel 486: } else {
1.206 sakharuk 487: $result .= '\begin{document} \typeout{STAMPOFPASSEDRESOURCESTART Resource <h2>"'.$name_of_resourse.'"</h2> located in <br /><small><b>'.$ENV{'request.uri'}.'</b></small><br /> STAMPOFPASSEDRESOURCEEND} \noindent \vskip 1 mm \noindent'.$startminipage.'\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
1.159 albertel 488: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
489: }
1.104 sakharuk 490: } else {
1.159 albertel 491: $result .= '\vskip 1mm\textit{Due date: '.$duedate.'} \\\\\\\\';
1.104 sakharuk 492: }
1.101 sakharuk 493: } else {
1.159 albertel 494: if (not $ENV{'request.symb'} =~ m/\.page_/) {
1.206 sakharuk 495: $result .= '\begin{document} \typeout{STAMPOFPASSEDRESOURCESTART Resource <h2>"'.$name_of_resourse.'"</h2> located in <br /><small><b>'.$ENV{'request.uri'}.'</b></small><br /> STAMPOFPASSEDRESOURCEEND} \noindent \vskip 1 mm\noindent'.$startminipage.'\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
1.159 albertel 496: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
497: } else {
498: $result .= '\vskip 1mm \\\\\\\\';
499: }
500: }
1.99 sakharuk 501: }
1.159 albertel 502: } elsif ($target eq 'edit') {
503: $result.=$head_tag_start."</head>".$body_tag_start.$form_tag_start.
504: &problem_edit_header();
1.226 albertel 505: $Apache::lonxml::warnings_error_header=
506: &mt("Editor Errors - these errors might not effect the running of the problem, but they will likely cause problems with further use of the Edit mode. Please use the EditXML mode to fix these errors.")."<br />";
1.159 albertel 507: my $temp=&Apache::edit::insertlist($target,$token);
508: $result.=$temp;
509: } elsif ($target eq 'modified') {
510: $result=$token->[4];
511: $result.=&Apache::edit::handle_insert();
512: } else {
513: # page_start returned a starting result, delete it if we don't need it
514: $result = '';
1.99 sakharuk 515: }
1.159 albertel 516: return $result;
1.9 albertel 517: }
518:
519: sub end_problem {
1.159 albertel 520: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
521: my $result='';
522: my $status=$Apache::inputtags::status['-1'];
523: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
524: $target eq 'tex') {
525: if ( $target eq 'grade' && $Apache::inputtags::part eq '0' &&
1.232 albertel 526: ($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode)) {
1.159 albertel 527: # if part is zero, no <part>s existed, so we need to the grading
528: &Apache::inputtags::grade;
529: } elsif ( ($target eq 'web' || $target eq 'tex') &&
530: $Apache::inputtags::part eq '0' &&
531: $status ne 'UNCHECKEDOUT') {
532: # if part is zero, no <part>s existed, so we need show the current
533: # grading status
534: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
535: $result.= $gradestatus;
536: }
537: if (
538: (($target eq 'web') && ($ENV{'request.state'} ne 'construct')) ||
539: ($target eq 'answer') || ($target eq 'tex')
540: ) {
1.227 albertel 541: if ($target ne 'tex' &&
542: $ENV{'form.answer_output_mode'} ne 'tex') {
543: $result.="</form></body>\n";
1.159 albertel 544: }
545: if ($target eq 'web') {
546: $result.=&Apache::lonxml::xmlend();
547: } elsif ($target eq 'tex') {
1.178 sakharuk 548: my $endminipage = '';
1.191 sakharuk 549: if (not $ENV{'form.problem_split'}=~/yes/) {
1.178 sakharuk 550: $endminipage = '\end{minipage}';
551: }
1.174 sakharuk 552: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.159 albertel 553: if (not $ENV{'request.symb'} =~ m/\.page_/) {
1.178 sakharuk 554: $result .= $endminipage.'\end{document} ';
1.159 albertel 555: } else {
556: $result .= '';
557: }
558: }
559: }
560: if ($target eq 'grade') {
561: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
562: &finalize_storage();
563: }
1.172 albertel 564: if ($target eq 'answer' && ($ENV{'request.state'} eq 'construct')
1.173 albertel 565: && $ENV{'form.answer_output_mode'} ne 'tex') {
1.172 albertel 566: $result.='</html>'; # normally we get it from xmlend, but in CSTR
567: # we always show answer mode too.
1.159 albertel 568: }
569: } elsif ($target eq 'meta') {
570: if ($Apache::inputtags::part eq '0') {
1.179 albertel 571: @Apache::inputtags::response=();
1.159 albertel 572: $result=&Apache::response::mandatory_part_meta;
573: }
1.215 albertel 574: $result.=&Apache::response::meta_part_order();
1.159 albertel 575: } elsif ($target eq 'edit') {
576: &Apache::lonxml::debug("in end_problem with $target, edit");
577: $result = &problem_edit_footer();
578: }
1.155 albertel 579:
1.177 albertel 580: if ($ENV{'request.state'} eq 'construct' && $target eq 'web') {
581: &Apache::inputtags::check_for_duplicate_ids();
582: }
1.204 albertel 583:
584: &reset_problem_globals('problem');
1.159 albertel 585:
586: return $result;
1.48 albertel 587: }
588:
1.108 albertel 589:
1.48 albertel 590: sub start_library {
1.159 albertel 591: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
592: my ($result,$head_tag_start,$body_tag_start,$form_tag_start);
1.204 albertel 593: if ($$tagstack[0] eq 'library') { &init_problem_globals('library') };
1.159 albertel 594: if ($target eq 'edit') {
595: ($result,$head_tag_start,$body_tag_start,$form_tag_start)=
596: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
597: $result.=$head_tag_start."</head>".$body_tag_start.$form_tag_start.
598: &problem_edit_header();
599: my $temp=&Apache::edit::insertlist($target,$token);
600: $result.=$temp;
601: } elsif ($target eq 'modified') {
602: $result=$token->[4];
603: $result.=&Apache::edit::handle_insert();
604: } elsif ($target eq 'web' && $$tagstack[0] ne 'problem' &&
605: $ENV{'request.state'} eq "construct" ) {
606: ($result,$head_tag_start,$body_tag_start,$form_tag_start)=
607: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
608: my $name=&get_resource_name($parstack,$safeeval);
609: my $rndseed=&setup_rndseed($safeeval);
610: $result.="$head_tag_start<title>$name</title></head>
1.105 albertel 611: $body_tag_start \n $form_tag_start".
1.159 albertel 612: '<input type="hidden" name="submitted" value="yes" />';
613: $result.=&problem_web_to_edit_header($rndseed);
614: }
615: return $result;
1.48 albertel 616: }
617:
618: sub end_library {
1.159 albertel 619: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
620: my $result='';
621: if ($target eq 'edit') {
622: $result=&problem_edit_footer();
623: } elsif ($target eq 'web' && $$tagstack[0] ne 'problem' &&
624: $ENV{'request.state'} eq "construct") {
625: $result.='</form></body>'.&Apache::lonxml::xmlend();
626: }
1.204 albertel 627: if ($$tagstack[0] eq 'library') { &reset_problem_globals('library') };
1.159 albertel 628: return $result;
1.197 www 629: }
630:
631: sub start_definetag {
632: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
633:
634: my $result;
635:
636: my $name = $token->[2]->{'name'};
637: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser);
638: if ($name=~/^\//) {
639: $result=
640: '<br /><table bgcolor="#FFBBBB"><tr><th>END <tt>'.$name.'</tt></th></tr>';
641: } else {
642: $result=
643: '<br /><table bgcolor="#BBFFBB"><tr><th>BEGIN <tt>'.$name.'</tt></th></tr>';
644: }
645: $skip=~s/\</\<\;/gs;
646: $skip=~s/\>/\>\;/gs;
647: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
648: return $result;
649: }
650:
651: sub end_definetag {
652: return '';
1.1 albertel 653: }
654:
655: sub start_block {
1.201 albertel 656: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 657:
658: my $result;
1.1 albertel 659:
1.160 albertel 660: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.131 albertel 661: $target eq 'tex' || $target eq 'analyze') {
1.159 albertel 662: my $code = $token->[2]->{'condition'};
1.201 albertel 663: if (defined($code)) {
1.137 albertel 664: if (!$Apache::lonxml::default_homework_loaded) {
665: &Apache::lonxml::default_homework_load($safeeval);
666: }
1.131 albertel 667: $result = &Apache::run::run($code,$safeeval);
668: &Apache::lonxml::debug("block :$code: returned :$result:");
669: } else {
670: $result='1';
671: }
672: if ( ! $result ) {
1.201 albertel 673: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 674: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
675: }
676: $result='';
677: } elsif ($target eq 'edit') {
678: $result .=&Apache::edit::tag_start($target,$token);
679: $result .=&Apache::edit::text_arg('Test Condition:','condition',
680: $token,40);
681: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
682: } elsif ($target eq 'modified') {
683: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
684: $safeeval,'condition');
685: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 686: }
1.131 albertel 687: return $result;
1.1 albertel 688: }
689:
690: sub end_block {
1.167 www 691: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
692: my $result;
693: if ($target eq "edit") {
694: $result.= &Apache::edit::tag_end($target,$token,'');
695: }
696: return $result;
697: }
698:
699: sub start_languageblock {
1.201 albertel 700: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 701:
702: my $result;
703:
704: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
705: $target eq 'tex' || $target eq 'analyze') {
1.201 albertel 706: my $include = $token->[2]->{'include'};
707: my $exclude = $token->[2]->{'exclude'};
708: my %languages=&Apache::loncommon::display_languages();
709: $result='1';
710: if ($include) {
711: $result='';
712: foreach (split(/\,/,$include)) {
713: if ($languages{$_}) { $result='1'; }
714: }
715: }
716: if ($exclude) {
717: foreach (split(/\,/,$exclude)) {
718: if ($languages{$_}) { $result='0'; }
719: }
720: }
721: if ( ! $result ) {
722: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
723: $style);
724: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
725: }
726: $result='';
1.167 www 727: } elsif ($target eq 'edit') {
728: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 729: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 730: $token,40);
1.211 albertel 731: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 732: $token,40);
733: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
734: } elsif ($target eq 'modified') {
735: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 736: $safeeval,'include',
737: 'exclude');
1.167 www 738: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
739: }
740: return $result;
741: }
742:
743: sub end_languageblock {
1.170 www 744: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
745: my $result;
1.201 albertel 746: if ($target eq "edit") {
1.170 www 747: $result.= &Apache::edit::tag_end($target,$token,'');
748: }
749: return $result;
750: }
751:
752: sub start_instructorcomment {
1.201 albertel 753: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 754:
755: my $result;
756:
757: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
758: $target eq 'tex' || $target eq 'analyze') {
759: $result=($ENV{'request.role'}=~/^(in|cc|au|ca|li)/);
760: if ( ! $result ) {
1.201 albertel 761: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
762: $parser,$style);
1.170 www 763: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
764: }
765: $result='';
766: } elsif ($target eq 'edit') {
767: $result .=&Apache::edit::tag_start($target,$token);
768: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
769: }
770: return $result;
771: }
772:
773: sub end_instructorcomment {
1.159 albertel 774: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 775: my $result;
776: if ($target eq "edit") {
777: $result.= &Apache::edit::tag_end($target,$token,'');
778: }
779: return $result;
1.4 tsai 780: }
781:
782: sub start_while {
1.159 albertel 783: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
784:
1.160 albertel 785: my $result;
1.161 albertel 786: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.160 albertel 787: $target eq 'tex' || $target eq 'analyze') {
788: my $code = $token->[2]->{'condition'};
1.4 tsai 789:
1.160 albertel 790: push( @Apache::structuretags::whileconds, $code);
791: if (!$Apache::lonxml::default_homework_loaded) {
792: &Apache::lonxml::default_homework_load($safeeval);
793: }
794: my $result = &Apache::run::run($code,$safeeval);
1.161 albertel 795: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser);
1.160 albertel 796: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 797: push( @Apache::structuretags::whileline, $token->[5]);
798: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 799: if ( $result ) {
800: &Apache::lonxml::newparser($parser,\$bodytext);
801: }
802: } elsif ($target eq 'edit') {
803: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 804: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 805: $token,40);
806: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
807: } elsif ($target eq 'modified') {
808: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
809: $safeeval,'condition');
810: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 811: }
1.160 albertel 812: return $result;
1.4 tsai 813: }
814:
815: sub end_while {
1.159 albertel 816: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 817: my $result;
818:
819: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
820: $target eq 'tex' || $target eq 'analyze') {
821: my $code = pop(@Apache::structuretags::whileconds);
822: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 823: my $line = pop(@Apache::structuretags::whileline);
824: my $return = &Apache::run::run($code,$safeeval);
825: my $starttime=time;
826: my $error=0;
827: while ($return) {
828: if (time-$starttime >
829: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
830: $return = 0; $error=1; next;
831: }
832: $result.=&Apache::scripttag::xmlparse($bodytext);
833: $return = &Apache::run::run($code,$safeeval);
834: }
835: if ($error) {
1.211 albertel 836: &Apache::lonxml::error('<pre>'.&mt('Code ran too long. It ran for more than').' '.$Apache::lonnet::perlvar{'lonScriptTimeout'}.' '.&mt('seconds occured while running <while$gt; on line').' '.$line.'</pre>');
1.160 albertel 837: }
838: } elsif ($target eq "edit") {
839: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 840: }
1.160 albertel 841: return $result;
1.1 albertel 842: }
1.6 tsai 843:
1.160 albertel 844: # <randomlist show="1">
1.6 tsai 845: # <tag1>..</tag1>
846: # <tag2>..</tag2>
847: # <tag3>..</tag3>
1.160 albertel 848: # ...
1.6 tsai 849: # </randomlist>
850: sub start_randomlist {
1.159 albertel 851: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
852: my $result;
853: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
854: $target eq 'tex' || $target eq 'analyze') {
855: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
856: my $b_parser= HTML::TokeParser->new(\$body);
857: my $b_tok;
858: my @randomlist;
859: my $list_item;
860: while($b_tok = $b_parser->get_token() ) {
861: if($b_tok->[0] eq 'S') { # start tag
862: # get content of the tag until matching end tag
863: # get all text upto the matching tag
864: # and push the content into @randomlist
865: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
866: $b_parser);
867: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
868: push(@randomlist,$list_item);
869: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
870: # $list_item</b>";
871: }
872: if($b_tok->[0] eq 'T') { # text
873: # what to do with text in between tags?
874: # print "<b>TEXT $b_tok->[1]</b><br />";
875: }
876: # if($b_tok->[0] eq 'E') { # end tag, should not happen
877: # print "<b>END-TAG $b_tok->[1]</b><br />";
878: # }
879: }
880: my @idx_arr = (0 .. $#randomlist);
881: &Apache::structuretags::shuffle(\@idx_arr);
882: my $bodytext = '';
883: my $show=$#randomlist;
884: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
885: $showarg--;
886: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
887: for(0 .. $show) {
888: $bodytext .= "$randomlist[ $idx_arr[$_] ]";
889: }
890: &Apache::lonxml::newparser($parser,\$bodytext);
891: } elsif ($target eq 'edit' ) {
892: $result .=&Apache::edit::tag_start($target,$token);
893: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
894: $token,5);
895: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
896: } elsif ($target eq 'modified' ) {
897: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
898: $safeeval,'show');
899: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
900: }
901: return $result;
1.7 tsai 902: }
903:
904: sub shuffle {
905: my $a=shift;
906: my $i;
1.70 albertel 907: if (defined(@$a)) {
1.159 albertel 908: &Apache::response::setrandomnumber();
909: for($i=@$a;--$i;) {
910: my $j=int(&Math::Random::random_uniform() * ($i+1));
911: next if $i == $j;
912: @$a[$i,$j] = @$a[$j,$i];
913: }
1.7 tsai 914: }
1.6 tsai 915: }
916:
917: sub end_randomlist {
1.159 albertel 918: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
919: my $result;
920: if ($target eq 'edit' ) {
921: $result=&Apache::edit::tag_end($target,$token,
922: 'End Randomly Parsed Block');
923: }
924: return $result;
1.6 tsai 925: }
926:
1.11 albertel 927: sub start_part {
1.159 albertel 928: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
929: my $result='';
930: my $id= &Apache::lonxml::get_param('id',$parstack,$safeeval);
931: if ($id eq '') { $id = $Apache::lonxml::curdepth; }
932: $Apache::inputtags::part=$id;
1.177 albertel 933: push(@Apache::inputtags::partlist,$id);
934: @Apache::inputtags::response=();
1.159 albertel 935: @Apache::inputtags::previous=();
936: @Apache::inputtags::previous_version=();
1.169 albertel 937: $Apache::lonhomework::problemstatus=
938: &Apache::lonnet::EXT("resource.$id.problemstatus");
1.159 albertel 939: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.214 albertel 940: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.209 albertel 941: &Apache::run::run($expression,$safeeval);
1.159 albertel 942:
943: if ($target eq 'meta') {
1.224 www 944: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
945: return &Apache::response::mandatory_part_meta.
946: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 947: } elsif ($target eq 'web' || $target eq 'grade' ||
948: $target eq 'answer' || $target eq 'tex') {
949: if ($hidden) {
950: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser);
951: } else {
952: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
953: push (@Apache::inputtags::status,$status);
954: my $expression='$external::datestatus="'.$status.'";';
955: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
956: &Apache::run::run($expression,$safeeval);
1.216 albertel 957: if (( $status eq 'CLOSED' ) ||
958: ( $status eq 'UNCHECKEDOUT') ||
959: ( $status eq 'BANNED') ||
960: ( $status eq 'UNAVAILABLE') ||
961: ( $status eq 'INVALID_ACCESS')) {
1.159 albertel 962: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser);
963: if ( $target eq "web" ) {
1.211 albertel 964: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 965: } elsif ( $target eq 'tex' ) {
1.195 sakharuk 966: if (not $ENV{'form.problem_split'}=~/yes/) {
1.211 albertel 967: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 968: } else {
1.211 albertel 969: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 970: }
1.159 albertel 971: }
972: } else {
973: if ($target eq 'tex') {
1.195 sakharuk 974: if (not $ENV{'form.problem_split'}=~/yes/) {
975: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
976: }
1.159 albertel 977: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.230 albertel 978: my $allkeys=&Apache::lonnet::metadata($ENV{'request.uri'},'packages');
1.222 sakharuk 979: my @allkeys = split /,/,$allkeys;
980: my $allow_print_points = 0;
981: foreach my $partial_key (@allkeys) {
1.230 albertel 982: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 983: if ($1 ne '0') {$allow_print_points=1;}
984: }
985: }
986: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
1.233 www 987: } elsif ($target eq 'web') {
988: $result.='<a name="'.&Apache::lonnet::escape($Apache::inputtags::part).'" />';
1.159 albertel 989: }
990: }
991: }
992: } elsif ($target eq 'edit') {
993: $result.=&Apache::edit::tag_start($target,$token);
994: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
995: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 996: ' '.
997: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 998: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
999: } elsif ($target eq 'modified') {
1000: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 1001: $safeeval,'id','display');
1.159 albertel 1002: if ($constructtag) {
1.225 albertel 1003: #limiting ids to only letters numbers, and space
1.224 www 1004: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 1005: $result = &Apache::edit::rebuild_tag($token);
1006: $result.=&Apache::edit::handle_insert();
1007: }
1008: }
1009: return $result;
1.11 albertel 1010: }
1011:
1012: sub end_part {
1.159 albertel 1013: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1014: &Apache::lonxml::debug("in end_part $target ");
1015: my $status=$Apache::inputtags::status['-1'];
1016: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1017: my $result='';
1018: if ( $target eq 'meta' ) {
1019: $result='';
1.232 albertel 1020: } elsif ($target eq 'grade' &&
1021: ($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1022: !$hidden) {
1.159 albertel 1023: $result=&Apache::inputtags::grade;
1024: } elsif (($target eq 'web' || $target eq 'tex') && !$hidden ) {
1025: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
1026: $target);
1.212 albertel 1027: if ($Apache::lonhomework::type eq 'exam' && $target eq 'tex') {
1028: $gradestatus='';
1029: }
1.159 albertel 1030: $result=$gradestatus;
1.181 albertel 1031: } elsif ($target eq 'edit') {
1032: $result=&Apache::edit::end_table();
1.159 albertel 1033: }
1034: pop @Apache::inputtags::status;
1035: $Apache::inputtags::part='';
1036: return $result;
1.11 albertel 1037: }
1.1 albertel 1038:
1.25 albertel 1039: sub start_preduedate {
1.159 albertel 1040: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1041: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' || $target eq 'tex') {
1042: if ($Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1043: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER' &&
1044: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER') {
1045: &Apache::lonxml::get_all_text("/preduedate",$parser);
1046: }
1.24 albertel 1047: }
1.159 albertel 1048: return '';
1.24 albertel 1049: }
1050:
1.25 albertel 1051: sub end_preduedate {
1.159 albertel 1052: return '';
1.24 albertel 1053: }
1054:
1.25 albertel 1055: sub start_postanswerdate {
1.159 albertel 1056: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.234 ! albertel 1057: if ($target eq 'web' || $target eq 'grade') {
1.159 albertel 1058: if ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER') {
1059: &Apache::lonxml::get_all_text("/postanswerdate",$parser);
1060: }
1061: } elsif ($target eq 'tex') {
1.234 ! albertel 1062: &Apache::lonxml::get_all_text("/postanswerdate",$parser);
1.159 albertel 1063: }
1064: return '';
1.24 albertel 1065: }
1066:
1.25 albertel 1067: sub end_postanswerdate {
1.159 albertel 1068: return '';
1.24 albertel 1069: }
1070:
1.25 albertel 1071: sub start_notsolved {
1.159 albertel 1072: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1073: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1074: $target eq 'tex') {
1075: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1076: &Apache::lonxml::debug("not solved has :$gradestatus:");
1077: if ($gradestatus =~ /^correct/) {
1078: &Apache::lonxml::debug("skipping");
1079: &Apache::lonxml::get_all_text("/notsolved",$parser);
1080: }
1.24 albertel 1081: }
1.159 albertel 1082: return '';
1.24 albertel 1083: }
1084:
1.25 albertel 1085: sub end_notsolved {
1.159 albertel 1086: return '';
1.24 albertel 1087: }
1088:
1089: sub start_solved {
1.159 albertel 1090: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1091: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1092: $target eq 'tex') {
1093: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1094: if ($gradestatus !~ /^correct/) {
1095: &Apache::lonxml::get_all_text("/solved",$parser);
1096: }
1.24 albertel 1097: }
1.159 albertel 1098: return '';
1.24 albertel 1099: }
1100:
1101: sub end_solved {
1.159 albertel 1102: return '';
1.24 albertel 1103: }
1.34 albertel 1104:
1105: sub start_startouttext {
1.159 albertel 1106: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1107: my @result=(''.'');
1108: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1109: return (@result);
1.34 albertel 1110: }
1.159 albertel 1111:
1.34 albertel 1112: sub end_startouttext {
1.159 albertel 1113: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1114: my $result='';
1115: my $text='';
1116:
1117: if ($target eq 'edit') {
1118: $text=&Apache::lonxml::get_all_text("endouttext",$parser);
1.211 albertel 1119: $result.=&Apache::edit::start_table($token)."<tr><td>".&mt('Text Block')."</td>
1120: <td>".&mt('Delete:').
1.159 albertel 1121: &Apache::edit::deletelist($target,$token)
1122: ."</td>
1.42 albertel 1123: <td>".
1.159 albertel 1124: &Apache::edit::insertlist($target,$token).
1125: &Apache::edit::end_row().
1126: &Apache::edit::start_spanning_row()."\n"
1.188 bowersj2 1127: . &Apache::loncommon::helpLatexCheatsheet () .
1.159 albertel 1128: &Apache::edit::editfield($token->[1],$text,"",80,4);
1129: }
1130: if ($target eq 'modified') {
1.219 albertel 1131: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 1132: }
1133: if ($target eq 'tex') {
1134: $result .= '\noindent ';
1135: }
1136: return $result;
1.34 albertel 1137: }
1.159 albertel 1138:
1.34 albertel 1139: sub start_endouttext {
1.159 albertel 1140: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1141: my $result='';
1142: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
1143: if ($target eq "modified") {
1144: $result='<endouttext />'.
1145: &Apache::edit::handle_insertafter('startouttext'); }
1146: return $result;
1.34 albertel 1147: }
1.159 albertel 1148:
1.34 albertel 1149: sub end_endouttext {
1.159 albertel 1150: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1151: my @result=('','');
1152: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
1153: return (@result);
1.34 albertel 1154: }
1.159 albertel 1155:
1.45 albertel 1156: sub delete_startouttext {
1.159 albertel 1157: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1158: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser);
1159: my $text=$$parser['-1']->get_text("/endouttext");
1160: my $ntoken=$$parser['-1']->get_token();
1161: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
1162: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
1163: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
1164: # they did the last time round
1165: &Apache::lonxml::increasedepth($ntoken);
1166: &Apache::lonxml::decreasedepth($ntoken);
1167: return 1;
1.193 www 1168: }
1169:
1170: sub start_simpleeditbutton {
1171: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1172: my $result='';
1173: if (($target eq 'web') &&
1174: (&Apache::lonnet::allowed('srm',$ENV{'request.course.id'}))) {
1.220 www 1175: my $url=$ENV{'request.noversionuri'};
1.193 www 1176: $url=~s/\?.*$//;
1.194 www 1177: $result='<table width="100%" bgcolor="#FFFFAA" border="2"><tr><td>'.
1.211 albertel 1178: '<a href="'.$url.'/smpedit">'.&mt('Simple Problem Editor').'</a> - '.&mt('Note: it can take up to 10 minutes for changes to take effect for all users.').
1.196 www 1179: &Apache::loncommon::help_open_topic('Caching').'</td></tr></table><br />';
1.193 www 1180: }
1181: return $result;
1182: }
1183:
1184: sub end_simpleeditbutton {
1185: return '';
1.45 albertel 1186: }
1.34 albertel 1187:
1.1 albertel 1188: 1;
1189: __END__
FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>
![[BACK]](/icons/back.gif){kind=icon}
Return to structuretags.pm CVS log ![[TXT]](/icons/text.gif){kind=icon}
![[DIR]](/icons/dir.gif){kind=icon}
Up to [LON-CAPA] / loncom / homework