Annotation of loncom/homework/structuretags.pm, revision 1.240
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.240 ! albertel 4: # $Id: structuretags.pm,v 1.239 2004/02/16 19:50:10 albertel 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: }
1.237 albertel 162: $ENV{'form.rndseed'}=$rndseed;
1.162 albertel 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 $rndseed;
1.105 albertel 181: }
182:
183: sub problem_edit_header {
1.159 albertel 184: return '<input type="hidden" name="submitted" value="edit" />
1.210 albertel 185: <input type="hidden" name="problemmode" value="'.&mt('Edit').'" />
186: <input type="submit" name="problemmode" value="'.&mt('Discard Edits and View').'" />
187: <input type="submit" name="problemmode" value="'.&mt('EditXML').'" />
188: <input type="submit" name="Undo" value="'.&mt('undo').'" /> <hr />
189: <input type="submit" name="submit" value="'.&mt('Submit Changes and Edit').'" />
1.229 www 190: <input type="submit" name="submit" value="'.&mt('Submit Changes and View').'" /><table><tr><td>'.
191: &Apache::loncommon::help_open_topic('Problem_Editor_XML_Index',
192: 'Problem Editing Help').'</td><td>'.
193: &Apache::loncommon::help_open_faq(5).
194: &Apache::loncommon::help_open_bug('Authoring').'</td></tr></table>'.
1.228 www 195: '<table border="0"><tr><td bgcolor="#DDDDDD">';
1.105 albertel 196: }
197:
198: sub problem_edit_footer {
1.210 albertel 199: return '</td></tr></table><br /><input type="submit" name="submit" value="'.&mt('Submit Changes and Edit').'" />
200: <input type="submit" name="submit" value="'.&mt('Submit Changes and View').'" />';
1.105 albertel 201: }
202:
1.235 albertel 203: sub option {
204: my ($value,$name) = @_;
205: my $result ="<option value='".$value."' ";
206: if ($ENV{'form.'.$name} eq $value) {
207: $result.=" selected='on' ";
208: }
209: $result.='>';
210: return $result;
211: }
212:
1.105 albertel 213: sub problem_web_to_edit_header {
1.159 albertel 214: my ($rndseed)=@_;
1.210 albertel 215: my $result.='<input type="hidden" name="problemmode" value="'.&mt('View').'" />
216: <input type="submit" name="problemmode" value="'.&mt('Edit').'" />
217: <input type="submit" name="problemmode" value="'.&mt('EditXML').'" />
218: <input type="submit" name="newrandomization" value="'.&mt('New Randomization').'" />
219: <input type="submit" name="resetdata" value="'.&mt('Reset Submissions').'" />
220: <nobr><input type="submit" name="changerandseed" value="'.&mt('Change Random Seed To:').'" />
1.175 albertel 221: <input type="text" name="rndseed" width="10" value="'.
222: $rndseed.'"
223: onChange="javascript:document.lonhomework.changerandseed.click()" /></nobr>
1.105 albertel 224: <input type="checkbox" name="showallfoils" ';
1.159 albertel 225: if (defined($ENV{'form.showallfoils'})) { $result.='checked="on"'; }
1.228 www 226: $result.= ' />'.&mt(' Show All Foils').
227: &Apache::loncommon::help_open_topic('Problem_Editor_Testing_Area','Testing Problems').
228: '<hr />';
1.235 albertel 229: $result.="
230: <nobr>
231: Problem Status:
232: <select name='problemstate'>
233: <option name=''></option>
234: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
235: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
236: ".&option('CANNOT_ANSWER_tries' ,'problemstate').&mt("Open with full tries")."</option>
237: ".&option('CANNOT_ANSWER_correct','problemstate').&mt("Open and correct")."</option>
238: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Answer")."</option>
239: </select>
240: </nobr>
241: <nobr>
242: Problem Type:
243: <select name='problemtype'>
244: <option name=''></option>
245: ".&option('exam' ,'problemtype')."Exam Problem</option>
246: ".&option('problem','problemtype')."Homework problem</option>
247: ".&option('survey' ,'problemtype')."Survey Question</option>
248: </select>
249: </nobr>
250: <nobr>
251: Feedback Mode:
252: <select name='problemstatus'>
253: <option value=''></option>
254: ".&option('yes','problemstatus')."Show Feedback</option>
255: ".&option('no', 'problemstatus')."Don\'t Show Feedback</option>
256: </select>
257: <input type='submit' name='changeproblemmode' value='Change' />
258: </nobr>
259: <hr />";
1.159 albertel 260: my $numtoanalyze=$ENV{'form.numtoanalyze'};
1.176 albertel 261: if (!$numtoanalyze) { $numtoanalyze=20; }
1.210 albertel 262: $result.= '<input type="submit" name="problemmode" value='.
263: &mt('"Calculate answers').'" /> for
1.136 albertel 264: <input type="text" name="numtoanalyze" value="'.
1.210 albertel 265: $numtoanalyze.'" size="5" /> '.&mt('versions of this problem').
266: '.'.&Apache::loncommon::help_open_topic("Analyze_Problem",
1.176 albertel 267: '',undef,undef,300).
1.210 albertel 268: '<hr />';
1.159 albertel 269: return $result;
1.48 albertel 270: }
271:
1.65 albertel 272: sub initialize_storage {
1.159 albertel 273: %Apache::lonhomework::results=();
1.162 albertel 274: %Apache::lonhomework::history=();
1.159 albertel 275: my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser();
1.162 albertel 276: if ($ENV{'request.state'} eq 'construct' || $symb eq '') {
1.159 albertel 277: %Apache::lonhomework::history=
278: &Apache::lonnet::tmprestore($ENV{'request.uri'},'',$domain,$name);
279: my ($temp)=keys %Apache::lonhomework::history ;
280: &Apache::lonxml::debug("Return message of $temp");
281: } else {
282: %Apache::lonhomework::history=
283: &Apache::lonnet::restore($symb,$courseid,$domain,$name);
284: }
285: #ignore error conditions
1.67 albertel 286: my ($temp)=keys %Apache::lonhomework::history ;
1.159 albertel 287: if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); }
1.65 albertel 288: }
289:
290: # -------------------------------------------------------------finalize_storage
291: # Stores away the result has to a student's environment
292: # checks form.grade_ for specific values, other wises stores
293: # to the running users environment
294: sub finalize_storage {
1.159 albertel 295: my $result;
296: my ($temp) = keys %Apache::lonhomework::results;
297: if ( $temp ne '' ) {
298: my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser();
1.162 albertel 299: if ($ENV{'request.state'} eq 'construct' || $symb eq '') {
300: $Apache::lonhomework::results{'rndseed'}=$ENV{'form.rndseed'};
1.159 albertel 301: $result=&Apache::lonnet::tmpstore(\%Apache::lonhomework::results,
302: $ENV{'request.uri'},'',$domain,$name);
303: &Apache::lonxml::debug('Construct Store return message:'.$result);
304: } else {
305: $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,
306: $symb,$courseid,$domain,$name);
307: &Apache::lonxml::debug('Store return message:'.$result);
308: }
1.67 albertel 309: }
1.159 albertel 310: return $result;
1.65 albertel 311: }
312:
313: sub checkout_msg {
1.211 albertel 314: my %lt=&Apache::lonlocal::texthash(
315: 'resource'=>'The resource needs to be checked out',
316: 'id_expln'=>'As a resource gets checked out, a unique timestamped ID is given to it, and a permanent record is left in the system.',
317: 'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',
318: 'checkout'=>'Check out Exam for Viewing',
319: 'checkout?'=>'Check out Exam?');
1.159 albertel 320: return (<<ENDCHECKOUT);
1.211 albertel 321: <h2>$lt{'resource'}</h2>
322: <p>$lt{'id_expln'}</p>
323: <font color="red">
324: <p>$lt{'warning'}</p>
1.91 albertel 325: </font>
326: <form name="checkout" method="POST" action="$ENV{'request.uri'}">
327: <input type="hidden" name="doescheckout" value="yes" />
1.211 albertel 328: <input type="button" name="checkoutbutton" value="$lt{'checkout'}" onClick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />
1.65 albertel 329: </form>
330: ENDCHECKOUT
331: }
332:
1.204 albertel 333: sub init_problem_globals {
334: my ($type)=@_;
335: #initialize globals
336: if ($type eq 'problem') {
337: $Apache::inputtags::part='0';
338: @Apache::inputtags::partlist=('0');
339: $Apache::lonhomework::problemstatus=
340: &Apache::lonnet::EXT('resource.0.problemstatus');
1.235 albertel 341: &Apache::lonxml::debug("problem status is $Apache::lonhomework::problemstatus");
342: &Apache::lonxml::debug("env probstat is ".$ENV{'form.problemstatus'});
343: if ($ENV{'request.state'} eq 'construct' &&
344: defined($ENV{'form.problemstatus'})) {
345: $Apache::lonhomework::problemstatus=$ENV{'form.problemstatus'};
346: }
1.204 albertel 347: } else {
348: $Apache::inputtags::part='';
349: @Apache::inputtags::partlist=();
350: $Apache::lonhomework::problemstatus='';
351: }
352: @Apache::inputtags::responselist = ();
353: @Apache::inputtags::importlist = ();
354: @Apache::inputtags::previous=();
355: @Apache::inputtags::previous_version=();
356: $Apache::structuretags::printanswer='No';
357: @Apache::structuretags::whileconds=();
358: @Apache::structuretags::whilebody=();
359: @Apache::structuretags::whileline=();
360: $Apache::lonhomework::scantronmode=0;
361: undef($Apache::lonhomework::name);
362:
363: }
364:
365: sub reset_problem_globals {
366: my ($type)=@_;
367: undef(%Apache::lonhomework::history);
368: undef(%Apache::lonhomework::results);
369: undef($Apache::inputtags::part);
1.208 albertel 370: #don't undef this, lonhomework.pm takes care of this, we use this to
371: #detect if we try to do 2 problems in one file
372: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 373: undef($Apache::lonhomework::name);
374: }
375:
1.240 ! albertel 376: sub set_problem_status {
! 377: my ($part)=@_;
! 378: if ($ENV{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
! 379: $Apache::lonhomework::history{"resource.$part.solved"}=
! 380: 'correct_by_student';
! 381: }
! 382: }
! 383:
1.9 albertel 384: sub start_problem {
1.159 albertel 385: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.19 albertel 386:
1.184 albertel 387: if ( $Apache::inputtags::part ne '' ||
388: $Apache::lonhomework::parsing_a_problem) {
389: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
390: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser);
1.159 albertel 391: return '';
392: }
1.184 albertel 393:
394: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 395: &init_problem_globals('problem');
1.166 albertel 396:
397: if (defined($ENV{'scantron.maxquest'})) {
398: $Apache::lonhomework::scantronmode=1;
399: }
1.161 albertel 400:
1.159 albertel 401: if ($target ne 'analyze') {
402: &initialize_storage();
403: if ($target eq 'web') {
404: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
1.238 albertel 405: }
1.240 ! albertel 406: if ($ENV{'request.state'} eq 'construct') { &set_problem_status('0'); }
1.159 albertel 407: $Apache::lonhomework::type=&Apache::lonnet::EXT('resource.0.type');
1.237 albertel 408: if (($ENV{'request.state'} eq 'construct') &&
409: defined($ENV{'form.problemtype'})) {
410: $Apache::lonhomework::type=$ENV{'form.problemtype'};
411: }
1.240 ! albertel 412: &Apache::lonxml::debug("Found this to be of type :$Apache::ltonhomework::type:");
1.159 albertel 413: }
1.164 albertel 414: if ($Apache::lonhomework::type eq '' ) {
1.159 albertel 415: my $uri=$ENV{'request.uri'};
416: if ($uri=~/\.(\w+)$/) {
417: $Apache::lonhomework::type=$1;
418: &Apache::lonxml::debug("Using type of $1");
419: } else {
420: $Apache::lonhomework::type='problem';
421: &Apache::lonxml::debug("Using default type, problem, :$uri:");
422: }
1.87 albertel 423: }
1.58 www 424:
1.159 albertel 425: #added vars to the scripting enviroment
1.213 albertel 426: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.24 albertel 427: &Apache::run::run($expression,$safeeval);
1.159 albertel 428: my $status;
429: my $accessmsg;
430:
431: #should get back a <html> or the neccesary stuff to start XML/MathML
432: my ($result,$head_tag_start,$body_tag_start,$form_tag_start)=
433: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
434: if ($target eq 'tex' and $ENV{'request.symb'} =~ m/\.page_/) {$result='';}
435:
436: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval); }
437: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
438: $target eq 'tex') {
439: #handle exam checkout
440: if ($Apache::lonhomework::type eq 'exam') {
441: my $token=
442: $Apache::lonhomework::history{"resource.0.outtoken"};
443: if (($ENV{'form.doescheckout'}) && (!$token)) {
444: $token=&Apache::lonxml::maketoken();
445: $Apache::lonhomework::history{"resource.0.outtoken"}=
446: $token;
447: }
448: $body_tag_start.=&Apache::lonxml::printtokenheader($target,$token);
1.142 albertel 449: }
1.159 albertel 450:
451: #handle rand seed in construction space
452: my $rndseed=&setup_rndseed($safeeval);
1.162 albertel 453: my ($symb)=&Apache::lonxml::whichuser();
1.163 albertel 454: if ($ENV{'request.state'} ne "construct" && $symb eq '') {
1.162 albertel 455: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
456: $rndseed.'" />'.
457: '<input type="submit" name="resetdata"
1.211 albertel 458: value="'.&mt('New Problem Variation').'" />'.
1.164 albertel 459: '<input type="hidden" name="username"
1.185 albertel 460: value="'.$ENV{'form.username'}.'" /> <br />';
1.162 albertel 461: }
1.159 albertel 462: ($status,$accessmsg) = &Apache::lonhomework::check_access('0');
463: push (@Apache::inputtags::status,$status);
464: my $expression='$external::datestatus="'.$status.'";';
465: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
466: &Apache::run::run($expression,$safeeval);
467: &Apache::lonxml::debug("Got $status");
468: if (( $status eq 'CLOSED' ) ||
469: ( $status eq 'UNCHECKEDOUT') ||
470: ( $status eq 'BANNED') ||
1.216 albertel 471: ( $status eq 'UNAVAILABLE') ||
472: ( $status eq 'INVALID_ACCESS')) {
1.159 albertel 473: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser);
474: if ( $target eq "web" ) {
475: $result.= $head_tag_start.'</head>';
476: my $msg=$body_tag_start;
477: if ($status eq 'UNAVAILABLE') {
1.211 albertel 478: $result.='<h1>'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</h1>';
1.159 albertel 479: } else {
1.211 albertel 480: $result.='<h1>'.&mt('Not open to be viewed').'</h1>';
1.159 albertel 481: }
1.216 albertel 482: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.159 albertel 483: $msg.='The problem '.$accessmsg;
484: } elsif ($status eq 'UNCHECKEDOUT') {
485: $msg.=&checkout_msg;
486: }
487: $result.=$msg.'<br />';
488: } elsif ($target eq 'tex') {
489: $result.='\begin{document}\noindent \vskip 1 mm \begin{minipage}{\textwidth}\vskip 0 mm';
490: if ($status eq 'UNAVAILABLE') {
1.211 albertel 491: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 492: } else {
1.211 albertel 493: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 494: }
495: }
496: } elsif ($target eq 'web') {
497: my $name= &get_resource_name($parstack,$safeeval);
1.227 albertel 498: $result.="$head_tag_start<title>$name</title></head>
1.158 sakharuk 499: $body_tag_start \n $form_tag_start".
1.227 albertel 500: '<input type="hidden" name="submitted" value="yes" />';
501: # create a page header and exit
502: if ($ENV{'request.state'} eq "construct") {
503: $result.= &problem_web_to_edit_header($ENV{'form.rndseed'});
504: }
505: # if we are viewing someone else preserve that info
506: if (defined $ENV{'form.grade_symb'}) {
507: foreach my $field ('symb','courseid','domain','username') {
508: $result .= '<input type="hidden" name="grade_'.$field.
509: '" value="'.$ENV{"form.grade_$field"}.'" />'."\n";
1.159 albertel 510: }
511: }
512: } elsif ($target eq 'tex') {
1.192 sakharuk 513: my $startminipage = '';
1.191 sakharuk 514: if (not $ENV{'form.problem_split'}=~/yes/) {
1.192 sakharuk 515: $startminipage = '\begin{minipage}{\textwidth}';
1.178 sakharuk 516: }
1.159 albertel 517: my $id = $Apache::inputtags::part;
518: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.223 sakharuk 519: my $packages=&Apache::lonnet::metadata($ENV{'request.uri'},'packages');
520: my @packages = split /,/,$packages;
521: my $allow_print_points = 0;
522: foreach my $partial_key (@packages) {
1.230 albertel 523: if ($partial_key=~m/^part_0$/) {
1.223 sakharuk 524: $allow_print_points=1;
1.159 albertel 525: }
526: }
527: my $duedate = &Apache::lonnet::EXT("resource.$id.duedate");
528: $duedate = POSIX::strftime("%c",localtime($duedate));
529: my $temp_file;
530: my $filename = "/home/httpd/prtspool/$ENV{'user.name'}_$ENV{'user.domain'}_printout.due";
531: if (-e $filename) {
532: $temp_file = Apache::File->new($filename);
533: } else {
534: $temp_file = Apache::File->new('>>'.$filename);
535: }
536: my @due_file_content = <$temp_file>;
537: my $due_file_content = $due_file_content[$#due_file_content];
538: chomp $due_file_content;
1.231 sakharuk 539: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval));
1.159 albertel 540: if ($due_file_content ne $duedate) {
541: $temp_file = Apache::File->new('>'.$filename);
542: print $temp_file "$duedate\n";
543: if (not $ENV{'request.symb'} =~ m/\.page_/) {
544: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
1.206 sakharuk 545: $result .= '\begin{document} \typeout{STAMPOFPASSEDRESOURCESTART Resource <h2>"'.$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 546: } else {
1.206 sakharuk 547: $result .= '\begin{document} \typeout{STAMPOFPASSEDRESOURCESTART Resource <h2>"'.$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}{'.$name_of_resourse.'}';
1.159 albertel 548: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
549: }
1.104 sakharuk 550: } else {
1.159 albertel 551: $result .= '\vskip 1mm\textit{Due date: '.$duedate.'} \\\\\\\\';
1.104 sakharuk 552: }
1.101 sakharuk 553: } else {
1.159 albertel 554: if (not $ENV{'request.symb'} =~ m/\.page_/) {
1.206 sakharuk 555: $result .= '\begin{document} \typeout{STAMPOFPASSEDRESOURCESTART Resource <h2>"'.$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}{'.$name_of_resourse.'}';
1.159 albertel 556: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
557: } else {
558: $result .= '\vskip 1mm \\\\\\\\';
559: }
560: }
1.99 sakharuk 561: }
1.159 albertel 562: } elsif ($target eq 'edit') {
563: $result.=$head_tag_start."</head>".$body_tag_start.$form_tag_start.
564: &problem_edit_header();
1.226 albertel 565: $Apache::lonxml::warnings_error_header=
566: &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 567: my $temp=&Apache::edit::insertlist($target,$token);
568: $result.=$temp;
569: } elsif ($target eq 'modified') {
570: $result=$token->[4];
571: $result.=&Apache::edit::handle_insert();
572: } else {
573: # page_start returned a starting result, delete it if we don't need it
574: $result = '';
1.99 sakharuk 575: }
1.159 albertel 576: return $result;
1.9 albertel 577: }
578:
579: sub end_problem {
1.159 albertel 580: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
581: my $result='';
582: my $status=$Apache::inputtags::status['-1'];
583: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
584: $target eq 'tex') {
585: if ( $target eq 'grade' && $Apache::inputtags::part eq '0' &&
1.232 albertel 586: ($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode)) {
1.159 albertel 587: # if part is zero, no <part>s existed, so we need to the grading
588: &Apache::inputtags::grade;
589: } elsif ( ($target eq 'web' || $target eq 'tex') &&
590: $Apache::inputtags::part eq '0' &&
591: $status ne 'UNCHECKEDOUT') {
592: # if part is zero, no <part>s existed, so we need show the current
593: # grading status
594: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
595: $result.= $gradestatus;
596: }
597: if (
598: (($target eq 'web') && ($ENV{'request.state'} ne 'construct')) ||
599: ($target eq 'answer') || ($target eq 'tex')
600: ) {
1.227 albertel 601: if ($target ne 'tex' &&
602: $ENV{'form.answer_output_mode'} ne 'tex') {
603: $result.="</form></body>\n";
1.159 albertel 604: }
605: if ($target eq 'web') {
606: $result.=&Apache::lonxml::xmlend();
607: } elsif ($target eq 'tex') {
1.178 sakharuk 608: my $endminipage = '';
1.191 sakharuk 609: if (not $ENV{'form.problem_split'}=~/yes/) {
1.178 sakharuk 610: $endminipage = '\end{minipage}';
611: }
1.174 sakharuk 612: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.159 albertel 613: if (not $ENV{'request.symb'} =~ m/\.page_/) {
1.178 sakharuk 614: $result .= $endminipage.'\end{document} ';
1.159 albertel 615: } else {
616: $result .= '';
617: }
618: }
619: }
620: if ($target eq 'grade') {
621: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
622: &finalize_storage();
623: }
1.172 albertel 624: if ($target eq 'answer' && ($ENV{'request.state'} eq 'construct')
1.173 albertel 625: && $ENV{'form.answer_output_mode'} ne 'tex') {
1.172 albertel 626: $result.='</html>'; # normally we get it from xmlend, but in CSTR
627: # we always show answer mode too.
1.159 albertel 628: }
629: } elsif ($target eq 'meta') {
630: if ($Apache::inputtags::part eq '0') {
1.179 albertel 631: @Apache::inputtags::response=();
1.159 albertel 632: $result=&Apache::response::mandatory_part_meta;
633: }
1.215 albertel 634: $result.=&Apache::response::meta_part_order();
1.159 albertel 635: } elsif ($target eq 'edit') {
636: &Apache::lonxml::debug("in end_problem with $target, edit");
637: $result = &problem_edit_footer();
638: }
1.155 albertel 639:
1.177 albertel 640: if ($ENV{'request.state'} eq 'construct' && $target eq 'web') {
641: &Apache::inputtags::check_for_duplicate_ids();
642: }
1.204 albertel 643:
644: &reset_problem_globals('problem');
1.159 albertel 645:
646: return $result;
1.48 albertel 647: }
648:
1.108 albertel 649:
1.48 albertel 650: sub start_library {
1.159 albertel 651: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
652: my ($result,$head_tag_start,$body_tag_start,$form_tag_start);
1.204 albertel 653: if ($$tagstack[0] eq 'library') { &init_problem_globals('library') };
1.159 albertel 654: if ($target eq 'edit') {
655: ($result,$head_tag_start,$body_tag_start,$form_tag_start)=
656: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
657: $result.=$head_tag_start."</head>".$body_tag_start.$form_tag_start.
658: &problem_edit_header();
659: my $temp=&Apache::edit::insertlist($target,$token);
660: $result.=$temp;
661: } elsif ($target eq 'modified') {
662: $result=$token->[4];
663: $result.=&Apache::edit::handle_insert();
664: } elsif ($target eq 'web' && $$tagstack[0] ne 'problem' &&
665: $ENV{'request.state'} eq "construct" ) {
666: ($result,$head_tag_start,$body_tag_start,$form_tag_start)=
667: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
668: my $name=&get_resource_name($parstack,$safeeval);
669: my $rndseed=&setup_rndseed($safeeval);
670: $result.="$head_tag_start<title>$name</title></head>
1.105 albertel 671: $body_tag_start \n $form_tag_start".
1.159 albertel 672: '<input type="hidden" name="submitted" value="yes" />';
673: $result.=&problem_web_to_edit_header($rndseed);
674: }
675: return $result;
1.48 albertel 676: }
677:
678: sub end_library {
1.159 albertel 679: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
680: my $result='';
681: if ($target eq 'edit') {
682: $result=&problem_edit_footer();
683: } elsif ($target eq 'web' && $$tagstack[0] ne 'problem' &&
684: $ENV{'request.state'} eq "construct") {
685: $result.='</form></body>'.&Apache::lonxml::xmlend();
686: }
1.204 albertel 687: if ($$tagstack[0] eq 'library') { &reset_problem_globals('library') };
1.159 albertel 688: return $result;
1.197 www 689: }
690:
691: sub start_definetag {
692: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
693:
694: my $result;
695:
696: my $name = $token->[2]->{'name'};
697: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser);
698: if ($name=~/^\//) {
699: $result=
700: '<br /><table bgcolor="#FFBBBB"><tr><th>END <tt>'.$name.'</tt></th></tr>';
701: } else {
702: $result=
703: '<br /><table bgcolor="#BBFFBB"><tr><th>BEGIN <tt>'.$name.'</tt></th></tr>';
704: }
705: $skip=~s/\</\<\;/gs;
706: $skip=~s/\>/\>\;/gs;
707: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
708: return $result;
709: }
710:
711: sub end_definetag {
712: return '';
1.1 albertel 713: }
714:
715: sub start_block {
1.201 albertel 716: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 717:
718: my $result;
1.1 albertel 719:
1.160 albertel 720: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.131 albertel 721: $target eq 'tex' || $target eq 'analyze') {
1.159 albertel 722: my $code = $token->[2]->{'condition'};
1.201 albertel 723: if (defined($code)) {
1.137 albertel 724: if (!$Apache::lonxml::default_homework_loaded) {
725: &Apache::lonxml::default_homework_load($safeeval);
726: }
1.131 albertel 727: $result = &Apache::run::run($code,$safeeval);
728: &Apache::lonxml::debug("block :$code: returned :$result:");
729: } else {
730: $result='1';
731: }
732: if ( ! $result ) {
1.201 albertel 733: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 734: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
735: }
736: $result='';
737: } elsif ($target eq 'edit') {
738: $result .=&Apache::edit::tag_start($target,$token);
739: $result .=&Apache::edit::text_arg('Test Condition:','condition',
740: $token,40);
741: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
742: } elsif ($target eq 'modified') {
743: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
744: $safeeval,'condition');
745: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 746: }
1.131 albertel 747: return $result;
1.1 albertel 748: }
749:
750: sub end_block {
1.167 www 751: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
752: my $result;
753: if ($target eq "edit") {
754: $result.= &Apache::edit::tag_end($target,$token,'');
755: }
756: return $result;
757: }
758:
759: sub start_languageblock {
1.201 albertel 760: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 761:
762: my $result;
763:
764: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
765: $target eq 'tex' || $target eq 'analyze') {
1.201 albertel 766: my $include = $token->[2]->{'include'};
767: my $exclude = $token->[2]->{'exclude'};
768: my %languages=&Apache::loncommon::display_languages();
769: $result='1';
770: if ($include) {
771: $result='';
772: foreach (split(/\,/,$include)) {
773: if ($languages{$_}) { $result='1'; }
774: }
775: }
776: if ($exclude) {
777: foreach (split(/\,/,$exclude)) {
778: if ($languages{$_}) { $result='0'; }
779: }
780: }
781: if ( ! $result ) {
782: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
783: $style);
784: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
785: }
786: $result='';
1.167 www 787: } elsif ($target eq 'edit') {
788: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 789: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 790: $token,40);
1.211 albertel 791: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 792: $token,40);
793: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
794: } elsif ($target eq 'modified') {
795: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 796: $safeeval,'include',
797: 'exclude');
1.167 www 798: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
799: }
800: return $result;
801: }
802:
803: sub end_languageblock {
1.170 www 804: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
805: my $result;
1.201 albertel 806: if ($target eq "edit") {
1.170 www 807: $result.= &Apache::edit::tag_end($target,$token,'');
808: }
809: return $result;
810: }
811:
812: sub start_instructorcomment {
1.201 albertel 813: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 814:
815: my $result;
816:
817: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
818: $target eq 'tex' || $target eq 'analyze') {
819: $result=($ENV{'request.role'}=~/^(in|cc|au|ca|li)/);
820: if ( ! $result ) {
1.201 albertel 821: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
822: $parser,$style);
1.170 www 823: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
824: }
825: $result='';
826: } elsif ($target eq 'edit') {
827: $result .=&Apache::edit::tag_start($target,$token);
828: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
829: }
830: return $result;
831: }
832:
833: sub end_instructorcomment {
1.159 albertel 834: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 835: my $result;
836: if ($target eq "edit") {
837: $result.= &Apache::edit::tag_end($target,$token,'');
838: }
839: return $result;
1.4 tsai 840: }
841:
842: sub start_while {
1.159 albertel 843: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
844:
1.160 albertel 845: my $result;
1.161 albertel 846: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.160 albertel 847: $target eq 'tex' || $target eq 'analyze') {
848: my $code = $token->[2]->{'condition'};
1.4 tsai 849:
1.160 albertel 850: push( @Apache::structuretags::whileconds, $code);
851: if (!$Apache::lonxml::default_homework_loaded) {
852: &Apache::lonxml::default_homework_load($safeeval);
853: }
854: my $result = &Apache::run::run($code,$safeeval);
1.161 albertel 855: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser);
1.160 albertel 856: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 857: push( @Apache::structuretags::whileline, $token->[5]);
858: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 859: if ( $result ) {
860: &Apache::lonxml::newparser($parser,\$bodytext);
861: }
862: } elsif ($target eq 'edit') {
863: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 864: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 865: $token,40);
866: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
867: } elsif ($target eq 'modified') {
868: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
869: $safeeval,'condition');
870: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 871: }
1.160 albertel 872: return $result;
1.4 tsai 873: }
874:
875: sub end_while {
1.159 albertel 876: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 877: my $result;
878:
879: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
880: $target eq 'tex' || $target eq 'analyze') {
881: my $code = pop(@Apache::structuretags::whileconds);
882: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 883: my $line = pop(@Apache::structuretags::whileline);
884: my $return = &Apache::run::run($code,$safeeval);
885: my $starttime=time;
886: my $error=0;
887: while ($return) {
888: if (time-$starttime >
889: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
890: $return = 0; $error=1; next;
891: }
892: $result.=&Apache::scripttag::xmlparse($bodytext);
893: $return = &Apache::run::run($code,$safeeval);
894: }
895: if ($error) {
1.211 albertel 896: &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 897: }
898: } elsif ($target eq "edit") {
899: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 900: }
1.160 albertel 901: return $result;
1.1 albertel 902: }
1.6 tsai 903:
1.160 albertel 904: # <randomlist show="1">
1.6 tsai 905: # <tag1>..</tag1>
906: # <tag2>..</tag2>
907: # <tag3>..</tag3>
1.160 albertel 908: # ...
1.6 tsai 909: # </randomlist>
910: sub start_randomlist {
1.159 albertel 911: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
912: my $result;
913: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
914: $target eq 'tex' || $target eq 'analyze') {
915: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
916: my $b_parser= HTML::TokeParser->new(\$body);
917: my $b_tok;
918: my @randomlist;
919: my $list_item;
920: while($b_tok = $b_parser->get_token() ) {
921: if($b_tok->[0] eq 'S') { # start tag
922: # get content of the tag until matching end tag
923: # get all text upto the matching tag
924: # and push the content into @randomlist
925: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
926: $b_parser);
927: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
928: push(@randomlist,$list_item);
929: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
930: # $list_item</b>";
931: }
932: if($b_tok->[0] eq 'T') { # text
933: # what to do with text in between tags?
934: # print "<b>TEXT $b_tok->[1]</b><br />";
935: }
936: # if($b_tok->[0] eq 'E') { # end tag, should not happen
937: # print "<b>END-TAG $b_tok->[1]</b><br />";
938: # }
939: }
940: my @idx_arr = (0 .. $#randomlist);
941: &Apache::structuretags::shuffle(\@idx_arr);
942: my $bodytext = '';
943: my $show=$#randomlist;
944: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
945: $showarg--;
946: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
947: for(0 .. $show) {
948: $bodytext .= "$randomlist[ $idx_arr[$_] ]";
949: }
950: &Apache::lonxml::newparser($parser,\$bodytext);
951: } elsif ($target eq 'edit' ) {
952: $result .=&Apache::edit::tag_start($target,$token);
953: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
954: $token,5);
955: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
956: } elsif ($target eq 'modified' ) {
957: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
958: $safeeval,'show');
959: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
960: }
961: return $result;
1.7 tsai 962: }
963:
964: sub shuffle {
965: my $a=shift;
966: my $i;
1.70 albertel 967: if (defined(@$a)) {
1.159 albertel 968: &Apache::response::setrandomnumber();
969: for($i=@$a;--$i;) {
970: my $j=int(&Math::Random::random_uniform() * ($i+1));
971: next if $i == $j;
972: @$a[$i,$j] = @$a[$j,$i];
973: }
1.7 tsai 974: }
1.6 tsai 975: }
976:
977: sub end_randomlist {
1.159 albertel 978: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
979: my $result;
980: if ($target eq 'edit' ) {
981: $result=&Apache::edit::tag_end($target,$token,
982: 'End Randomly Parsed Block');
983: }
984: return $result;
1.6 tsai 985: }
986:
1.11 albertel 987: sub start_part {
1.159 albertel 988: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
989: my $result='';
990: my $id= &Apache::lonxml::get_param('id',$parstack,$safeeval);
991: if ($id eq '') { $id = $Apache::lonxml::curdepth; }
992: $Apache::inputtags::part=$id;
1.177 albertel 993: push(@Apache::inputtags::partlist,$id);
994: @Apache::inputtags::response=();
1.159 albertel 995: @Apache::inputtags::previous=();
996: @Apache::inputtags::previous_version=();
1.169 albertel 997: $Apache::lonhomework::problemstatus=
998: &Apache::lonnet::EXT("resource.$id.problemstatus");
1.159 albertel 999: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.214 albertel 1000: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.209 albertel 1001: &Apache::run::run($expression,$safeeval);
1.159 albertel 1002:
1003: if ($target eq 'meta') {
1.224 www 1004: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
1005: return &Apache::response::mandatory_part_meta.
1006: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 1007: } elsif ($target eq 'web' || $target eq 'grade' ||
1008: $target eq 'answer' || $target eq 'tex') {
1009: if ($hidden) {
1010: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser);
1011: } else {
1012: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
1013: push (@Apache::inputtags::status,$status);
1014: my $expression='$external::datestatus="'.$status.'";';
1015: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
1016: &Apache::run::run($expression,$safeeval);
1.240 ! albertel 1017: if ($ENV{'request.state'} eq 'construct') {
! 1018: &set_problem_status($Apache::inputtags::part);
! 1019: }
1.216 albertel 1020: if (( $status eq 'CLOSED' ) ||
1021: ( $status eq 'UNCHECKEDOUT') ||
1022: ( $status eq 'BANNED') ||
1023: ( $status eq 'UNAVAILABLE') ||
1024: ( $status eq 'INVALID_ACCESS')) {
1.159 albertel 1025: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser);
1026: if ( $target eq "web" ) {
1.211 albertel 1027: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 1028: } elsif ( $target eq 'tex' ) {
1.195 sakharuk 1029: if (not $ENV{'form.problem_split'}=~/yes/) {
1.211 albertel 1030: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 1031: } else {
1.211 albertel 1032: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 1033: }
1.159 albertel 1034: }
1035: } else {
1036: if ($target eq 'tex') {
1.195 sakharuk 1037: if (not $ENV{'form.problem_split'}=~/yes/) {
1038: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1039: }
1.159 albertel 1040: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.230 albertel 1041: my $allkeys=&Apache::lonnet::metadata($ENV{'request.uri'},'packages');
1.222 sakharuk 1042: my @allkeys = split /,/,$allkeys;
1043: my $allow_print_points = 0;
1044: foreach my $partial_key (@allkeys) {
1.230 albertel 1045: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 1046: if ($1 ne '0') {$allow_print_points=1;}
1047: }
1048: }
1049: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
1.233 www 1050: } elsif ($target eq 'web') {
1051: $result.='<a name="'.&Apache::lonnet::escape($Apache::inputtags::part).'" />';
1.159 albertel 1052: }
1053: }
1054: }
1055: } elsif ($target eq 'edit') {
1056: $result.=&Apache::edit::tag_start($target,$token);
1057: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
1058: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 1059: ' '.
1060: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 1061: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
1062: } elsif ($target eq 'modified') {
1063: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 1064: $safeeval,'id','display');
1.159 albertel 1065: if ($constructtag) {
1.225 albertel 1066: #limiting ids to only letters numbers, and space
1.224 www 1067: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 1068: $result = &Apache::edit::rebuild_tag($token);
1069: $result.=&Apache::edit::handle_insert();
1070: }
1071: }
1072: return $result;
1.11 albertel 1073: }
1074:
1075: sub end_part {
1.159 albertel 1076: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1077: &Apache::lonxml::debug("in end_part $target ");
1078: my $status=$Apache::inputtags::status['-1'];
1079: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1080: my $result='';
1081: if ( $target eq 'meta' ) {
1082: $result='';
1.232 albertel 1083: } elsif ($target eq 'grade' &&
1084: ($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1085: !$hidden) {
1.159 albertel 1086: $result=&Apache::inputtags::grade;
1087: } elsif (($target eq 'web' || $target eq 'tex') && !$hidden ) {
1088: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
1089: $target);
1.212 albertel 1090: if ($Apache::lonhomework::type eq 'exam' && $target eq 'tex') {
1091: $gradestatus='';
1092: }
1.159 albertel 1093: $result=$gradestatus;
1.181 albertel 1094: } elsif ($target eq 'edit') {
1095: $result=&Apache::edit::end_table();
1.159 albertel 1096: }
1097: pop @Apache::inputtags::status;
1098: $Apache::inputtags::part='';
1099: return $result;
1.11 albertel 1100: }
1.1 albertel 1101:
1.25 albertel 1102: sub start_preduedate {
1.159 albertel 1103: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1104: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' || $target eq 'tex') {
1.236 albertel 1105: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.159 albertel 1106: if ($Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 1107: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
1108: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.159 albertel 1109: &Apache::lonxml::get_all_text("/preduedate",$parser);
1110: }
1.24 albertel 1111: }
1.159 albertel 1112: return '';
1.24 albertel 1113: }
1114:
1.25 albertel 1115: sub end_preduedate {
1.159 albertel 1116: return '';
1.24 albertel 1117: }
1118:
1.25 albertel 1119: sub start_postanswerdate {
1.159 albertel 1120: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.234 albertel 1121: if ($target eq 'web' || $target eq 'grade') {
1.159 albertel 1122: if ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER') {
1123: &Apache::lonxml::get_all_text("/postanswerdate",$parser);
1124: }
1125: } elsif ($target eq 'tex') {
1.234 albertel 1126: &Apache::lonxml::get_all_text("/postanswerdate",$parser);
1.159 albertel 1127: }
1128: return '';
1.24 albertel 1129: }
1130:
1.25 albertel 1131: sub end_postanswerdate {
1.159 albertel 1132: return '';
1.24 albertel 1133: }
1134:
1.25 albertel 1135: sub start_notsolved {
1.159 albertel 1136: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1137: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1138: $target eq 'tex') {
1139: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1140: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 1141: if ($gradestatus =~ /^correct/ &&
1142: &Apache::response::show_answer()) {
1.159 albertel 1143: &Apache::lonxml::debug("skipping");
1144: &Apache::lonxml::get_all_text("/notsolved",$parser);
1145: }
1.24 albertel 1146: }
1.159 albertel 1147: return '';
1.24 albertel 1148: }
1149:
1.25 albertel 1150: sub end_notsolved {
1.159 albertel 1151: return '';
1.24 albertel 1152: }
1153:
1154: sub start_solved {
1.159 albertel 1155: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1156: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1157: $target eq 'tex') {
1158: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 1159: if ($gradestatus !~ /^correct/ ||
1160: !&Apache::response::show_answer()) {
1.159 albertel 1161: &Apache::lonxml::get_all_text("/solved",$parser);
1162: }
1.24 albertel 1163: }
1.159 albertel 1164: return '';
1.24 albertel 1165: }
1166:
1167: sub end_solved {
1.159 albertel 1168: return '';
1.24 albertel 1169: }
1.34 albertel 1170:
1171: sub start_startouttext {
1.159 albertel 1172: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1173: my @result=(''.'');
1174: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1175: return (@result);
1.34 albertel 1176: }
1.159 albertel 1177:
1.34 albertel 1178: sub end_startouttext {
1.159 albertel 1179: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1180: my $result='';
1181: my $text='';
1182:
1183: if ($target eq 'edit') {
1184: $text=&Apache::lonxml::get_all_text("endouttext",$parser);
1.211 albertel 1185: $result.=&Apache::edit::start_table($token)."<tr><td>".&mt('Text Block')."</td>
1186: <td>".&mt('Delete:').
1.159 albertel 1187: &Apache::edit::deletelist($target,$token)
1188: ."</td>
1.42 albertel 1189: <td>".
1.159 albertel 1190: &Apache::edit::insertlist($target,$token).
1191: &Apache::edit::end_row().
1192: &Apache::edit::start_spanning_row()."\n"
1.188 bowersj2 1193: . &Apache::loncommon::helpLatexCheatsheet () .
1.159 albertel 1194: &Apache::edit::editfield($token->[1],$text,"",80,4);
1195: }
1196: if ($target eq 'modified') {
1.219 albertel 1197: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 1198: }
1199: if ($target eq 'tex') {
1200: $result .= '\noindent ';
1201: }
1202: return $result;
1.34 albertel 1203: }
1.159 albertel 1204:
1.34 albertel 1205: sub start_endouttext {
1.159 albertel 1206: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1207: my $result='';
1208: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
1209: if ($target eq "modified") {
1210: $result='<endouttext />'.
1211: &Apache::edit::handle_insertafter('startouttext'); }
1212: return $result;
1.34 albertel 1213: }
1.159 albertel 1214:
1.34 albertel 1215: sub end_endouttext {
1.159 albertel 1216: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1217: my @result=('','');
1218: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
1219: return (@result);
1.34 albertel 1220: }
1.159 albertel 1221:
1.45 albertel 1222: sub delete_startouttext {
1.159 albertel 1223: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1224: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser);
1225: my $text=$$parser['-1']->get_text("/endouttext");
1226: my $ntoken=$$parser['-1']->get_token();
1227: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
1228: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
1229: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
1230: # they did the last time round
1231: &Apache::lonxml::increasedepth($ntoken);
1232: &Apache::lonxml::decreasedepth($ntoken);
1233: return 1;
1.193 www 1234: }
1235:
1236: sub start_simpleeditbutton {
1237: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1238: my $result='';
1239: if (($target eq 'web') &&
1240: (&Apache::lonnet::allowed('srm',$ENV{'request.course.id'}))) {
1.220 www 1241: my $url=$ENV{'request.noversionuri'};
1.193 www 1242: $url=~s/\?.*$//;
1.194 www 1243: $result='<table width="100%" bgcolor="#FFFFAA" border="2"><tr><td>'.
1.211 albertel 1244: '<a href="'.$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 1245: &Apache::loncommon::help_open_topic('Caching').'</td></tr></table><br />';
1.193 www 1246: }
1247: return $result;
1248: }
1249:
1250: sub end_simpleeditbutton {
1251: return '';
1.45 albertel 1252: }
1.34 albertel 1253:
1.1 albertel 1254: 1;
1255: __END__
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