Annotation of loncom/homework/structuretags.pm, revision 1.265
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.265 ! sakharuk 4: # $Id: structuretags.pm,v 1.264 2004/08/13 15:54:06 sakharuk 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: #
1.254 www 28: ###
1.54 www 29:
1.133 sakharuk 30:
1.1 albertel 31: package Apache::structuretags;
32:
33: use strict;
34: use Apache::lonnet;
1.101 sakharuk 35: use Apache::File();
1.147 www 36: use Apache::lonmenu;
1.210 albertel 37: use Apache::lonlocal;
1.231 sakharuk 38: use Apache::lonxml;
1.1 albertel 39:
1.78 harris41 40: BEGIN {
1.248 albertel 41: &Apache::lonxml::register('Apache::structuretags',('block','languageblock','instructorcomment','while','randomlist','problem','library','web','tex','part','preduedate','postanswerdate','solved','notsolved','problemtype','startouttext','endouttext','simpleeditbutton','definetag'));
1.10 albertel 42: }
43:
44: sub start_web {
1.159 albertel 45: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.200 albertel 46: my $bodytext=&Apache::lonxml::get_all_text("/web",$parser);
47: if ($target eq 'web') {
48: return $bodytext;
1.159 albertel 49: }
50: return '';
1.10 albertel 51: }
52:
53: sub end_web {
1.44 ng 54: return '';
1.10 albertel 55: }
56:
57: sub start_tex {
1.159 albertel 58: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.198 sakharuk 59: my $result='';
1.200 albertel 60: my $bodytext=&Apache::lonxml::get_all_text("/tex",$parser);
61: if ($target eq 'tex') {
62: return $bodytext.' ';
1.159 albertel 63: }
1.198 sakharuk 64: return $result;;
1.10 albertel 65: }
66:
67: sub end_tex {
1.44 ng 68: return '';
1.9 albertel 69: }
70:
1.48 albertel 71: sub page_start {
1.159 albertel 72: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
73: my %found;
1.207 albertel 74: foreach my $taginside (@$tagstack) {
1.159 albertel 75: foreach my $taglookedfor ('html','body','form') {
76: if ($taginside =~ /^$taglookedfor$/i) {$found{$taglookedfor} = 1;}
77: }
78: }
79:
80: my $result;
81: my $head_tag_start;
82: if (!defined($found{'html'})) {
83: $result=&Apache::londefdef::start_html($target,$token,$tagstack,
84: $parstack,$parser,$safeeval);
1.254 www 85: $head_tag_start='<head>'.&Apache::lonmenu::registerurl(undef,$target).
1.261 www 86: &Apache::lonhtmlcommon::htmlareaheaders().
87: &Apache::lonhtmlcommon::spellheader();
1.159 albertel 88: }
89: my $body_tag_start;
90: if (!defined($found{'body'})) {
91: $body_tag_start='<body onLoad="'.&Apache::lonmenu::loadevents().'" '.
92: 'onUnload="'.&Apache::lonmenu::unloadevents().'" ';
93: my $background=&Apache::lonxml::get_param('background',$parstack,
94: $safeeval);
1.199 www 95: if ($ENV{'browser.imagesuppress'} eq 'on') { $background=''; }
1.159 albertel 96: if ($background) {
97: $Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=
98: $background;
99: $body_tag_start.='background="'.$background.'" ';
100: } else {
101: my $bgcolor=&Apache::lonxml::get_param('bgcolor',$parstack,
102: $safeeval);
1.199 www 103: if (($bgcolor) && ($ENV{'browser.blackwhite'} ne 'on')) {
1.159 albertel 104: $body_tag_start.='bgcolor="'.$bgcolor.'" ';
105: } else {
106: $body_tag_start.='bgcolor="#ffffff"';
107: }
1.199 www 108: }
109: if ($ENV{'browser.fontenhance'} eq 'on') {
110: $body_tag_start.=' style="font-size: x-large;" ';
1.159 albertel 111: }
112: $body_tag_start.='>'.&Apache::lonmenu::menubuttons(undef,$target,1);
113: if ($target eq 'web' && $ENV{'request.state'} ne 'construct') {
1.165 albertel 114: my ($symb,undef,undef,undef,$publicuser)=
115: &Apache::lonxml::whichuser();
116: if ($symb eq '' && !$publicuser) {
1.159 albertel 117: my $help = &Apache::loncommon::help_open_topic("Ambiguous_Reference");
1.211 albertel 118: $help=&mt("Browsing resource, all submissions are temporary.")."<br />";
1.159 albertel 119: $body_tag_start.=$help;
120: }
121: }
1.245 albertel 122: $body_tag_start.=&Apache::lonxml::message_location();
1.159 albertel 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();
1.247 albertel 155: if ($ENV{'request.state'} eq "construct" || $symb eq '' ||
156: $Apache::lonhomework::history{'resource.CODE'}) {
1.159 albertel 157: $rndseed=$ENV{'form.rndseed'};
158: if (!$rndseed) {
1.162 albertel 159: $rndseed=$Apache::lonhomework::history{'rndseed'};
160: if (!$rndseed) {
161: $rndseed=time;
162: }
1.237 albertel 163: $ENV{'form.rndseed'}=$rndseed;
1.162 albertel 164: }
1.210 albertel 165: if ($ENV{'form.resetdata'} eq &mt('New Problem Variation') ||
166: $ENV{'form.newrandomization'} eq &mt('New Randomization')) {
1.190 albertel 167: srand(time);
168: $rndseed=int(rand(2100000000));
1.159 albertel 169: $ENV{'form.rndseed'}=$rndseed;
1.180 albertel 170: delete($ENV{'form.resetdata'});
171: delete($ENV{'form.newrandomization'});
1.159 albertel 172: }
1.187 albertel 173: if (defined($rndseed) && $rndseed ne int($rndseed)) {
174: $rndseed=join(',',&Math::Random::random_seed_from_phrase($rndseed));
175: }
1.247 albertel 176: if ($Apache::lonhomework::history{'resource.CODE'}) {
177: $rndseed=&Apache::lonnet::rndseed();
178: }
1.221 albertel 179: if ($safeeval) {
180: &Apache::lonxml::debug("Setting rndseed to $rndseed");
1.250 albertel 181: &Apache::run::run('$external::randomseed="'.$rndseed.'";',$safeeval);
1.221 albertel 182: }
1.159 albertel 183: }
184: return $rndseed;
1.105 albertel 185: }
186:
187: sub problem_edit_header {
1.159 albertel 188: return '<input type="hidden" name="submitted" value="edit" />
1.210 albertel 189: <input type="hidden" name="problemmode" value="'.&mt('Edit').'" />
1.243 matthew 190: <input type="submit" name="problemmode" accesskey="d" value="'.&mt('Discard Edits and View').'" />
191: <input type="submit" name="problemmode" accesskey="x" value="'.&mt('EditXML').'" />
192: <input type="submit" name="Undo" accesskey="u" value="'.&mt('undo').'" /> <hr />
193: <input type="submit" name="submit" accesskey="s" value="'.&mt('Submit Changes and Edit').'" />
194: <input type="submit" name="submit" accesskey="v" value="'.&mt('Submit Changes and View').'" /><table><tr><td>'.
1.260 albertel 195: &Apache::loncommon::help_open_menu('','Problem Editing Help','Problem_Editor_XML_Index','',5,'Authoring',undef,undef,undef,'Problem Editing Help')
196: .'</td></tr></table>'.
1.228 www 197: '<table border="0"><tr><td bgcolor="#DDDDDD">';
1.105 albertel 198: }
199:
200: sub problem_edit_footer {
1.210 albertel 201: return '</td></tr></table><br /><input type="submit" name="submit" value="'.&mt('Submit Changes and Edit').'" />
1.255 www 202: <input type="submit" name="submit" value="'.&mt('Submit Changes and View').'" />'.
203: &Apache::lonhtmlcommon::htmlareaselectactive(@Apache::lonxml::htmlareafields).
204: "\n</form>\n</body>\n</html>";
1.105 albertel 205: }
206:
1.235 albertel 207: sub option {
208: my ($value,$name) = @_;
209: my $result ="<option value='".$value."' ";
210: if ($ENV{'form.'.$name} eq $value) {
211: $result.=" selected='on' ";
212: }
213: $result.='>';
214: return $result;
215: }
216:
1.105 albertel 217: sub problem_web_to_edit_header {
1.159 albertel 218: my ($rndseed)=@_;
1.210 albertel 219: my $result.='<input type="hidden" name="problemmode" value="'.&mt('View').'" />
1.243 matthew 220: <input type="submit" name="problemmode" accesskey="e" value="'.&mt('Edit').'" />
221: <input type="submit" name="problemmode" accesskey="x" value="'.&mt('EditXML').'" />
222: <input type="submit" name="newrandomization" accesskey="a" value="'.&mt('New Randomization').'" />
223: <input type="submit" name="resetdata" accesskey="r" value="'.&mt('Reset Submissions').'" />
1.210 albertel 224: <nobr><input type="submit" name="changerandseed" value="'.&mt('Change Random Seed To:').'" />
1.175 albertel 225: <input type="text" name="rndseed" width="10" value="'.
226: $rndseed.'"
227: onChange="javascript:document.lonhomework.changerandseed.click()" /></nobr>
1.105 albertel 228: <input type="checkbox" name="showallfoils" ';
1.159 albertel 229: if (defined($ENV{'form.showallfoils'})) { $result.='checked="on"'; }
1.228 www 230: $result.= ' />'.&mt(' Show All Foils').
231: &Apache::loncommon::help_open_topic('Problem_Editor_Testing_Area','Testing Problems').
232: '<hr />';
1.235 albertel 233: $result.="
234: <nobr>
235: Problem Status:
236: <select name='problemstate'>
237: <option name=''></option>
238: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
239: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
240: ".&option('CANNOT_ANSWER_tries' ,'problemstate').&mt("Open with full tries")."</option>
241: ".&option('CANNOT_ANSWER_correct','problemstate').&mt("Open and correct")."</option>
242: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Answer")."</option>
243: </select>
244: </nobr>
245: <nobr>
246: Problem Type:
247: <select name='problemtype'>
248: <option name=''></option>
1.242 albertel 249: ".&option('exam' ,'problemtype').&mt("Exam Problem")."</option>
250: ".&option('problem','problemtype').&mt("Homework problem")."</option>
251: ".&option('survey' ,'problemtype').&mt("Survey Question")."</option>
1.235 albertel 252: </select>
253: </nobr>
254: <nobr>
255: Feedback Mode:
256: <select name='problemstatus'>
257: <option value=''></option>
1.242 albertel 258: ".&option('yes','problemstatus').&mt("Show Feedback")."</option>
259: ".&option('no', 'problemstatus').&mt("Don't Show Feedback")."</option>
1.235 albertel 260: </select>
261: </nobr>
1.242 albertel 262: <input type='submit' name='changeproblemmode' value='".&mt("Change")."' />
1.235 albertel 263: <hr />";
1.159 albertel 264: my $numtoanalyze=$ENV{'form.numtoanalyze'};
1.176 albertel 265: if (!$numtoanalyze) { $numtoanalyze=20; }
1.210 albertel 266: $result.= '<input type="submit" name="problemmode" value='.
267: &mt('"Calculate answers').'" /> for
1.136 albertel 268: <input type="text" name="numtoanalyze" value="'.
1.210 albertel 269: $numtoanalyze.'" size="5" /> '.&mt('versions of this problem').
270: '.'.&Apache::loncommon::help_open_topic("Analyze_Problem",
1.176 albertel 271: '',undef,undef,300).
1.210 albertel 272: '<hr />';
1.159 albertel 273: return $result;
1.48 albertel 274: }
275:
1.65 albertel 276: sub initialize_storage {
1.159 albertel 277: %Apache::lonhomework::results=();
1.162 albertel 278: %Apache::lonhomework::history=();
1.159 albertel 279: my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser();
1.162 albertel 280: if ($ENV{'request.state'} eq 'construct' || $symb eq '') {
1.159 albertel 281: %Apache::lonhomework::history=
282: &Apache::lonnet::tmprestore($ENV{'request.uri'},'',$domain,$name);
283: my ($temp)=keys %Apache::lonhomework::history ;
284: &Apache::lonxml::debug("Return message of $temp");
285: } else {
286: %Apache::lonhomework::history=
287: &Apache::lonnet::restore($symb,$courseid,$domain,$name);
288: }
289: #ignore error conditions
1.67 albertel 290: my ($temp)=keys %Apache::lonhomework::history ;
1.159 albertel 291: if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); }
1.65 albertel 292: }
293:
294: # -------------------------------------------------------------finalize_storage
295: # Stores away the result has to a student's environment
296: # checks form.grade_ for specific values, other wises stores
297: # to the running users environment
298: sub finalize_storage {
1.159 albertel 299: my $result;
300: my ($temp) = keys %Apache::lonhomework::results;
301: if ( $temp ne '' ) {
302: my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser();
1.162 albertel 303: if ($ENV{'request.state'} eq 'construct' || $symb eq '') {
304: $Apache::lonhomework::results{'rndseed'}=$ENV{'form.rndseed'};
1.159 albertel 305: $result=&Apache::lonnet::tmpstore(\%Apache::lonhomework::results,
306: $ENV{'request.uri'},'',$domain,$name);
307: &Apache::lonxml::debug('Construct Store return message:'.$result);
308: } else {
309: $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,
310: $symb,$courseid,$domain,$name);
311: &Apache::lonxml::debug('Store return message:'.$result);
312: }
1.67 albertel 313: }
1.159 albertel 314: return $result;
1.65 albertel 315: }
316:
317: sub checkout_msg {
1.211 albertel 318: my %lt=&Apache::lonlocal::texthash(
319: 'resource'=>'The resource needs to be checked out',
320: 'id_expln'=>'As a resource gets checked out, a unique timestamped ID is given to it, and a permanent record is left in the system.',
321: 'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',
322: 'checkout'=>'Check out Exam for Viewing',
323: 'checkout?'=>'Check out Exam?');
1.159 albertel 324: return (<<ENDCHECKOUT);
1.211 albertel 325: <h2>$lt{'resource'}</h2>
326: <p>$lt{'id_expln'}</p>
327: <font color="red">
328: <p>$lt{'warning'}</p>
1.91 albertel 329: </font>
330: <form name="checkout" method="POST" action="$ENV{'request.uri'}">
331: <input type="hidden" name="doescheckout" value="yes" />
1.211 albertel 332: <input type="button" name="checkoutbutton" value="$lt{'checkout'}" onClick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />
1.65 albertel 333: </form>
334: ENDCHECKOUT
335: }
336:
1.252 albertel 337: sub firstaccess_msg {
1.253 albertel 338: my ($time,$symb)=@_;
339: my ($map)=&Apache::lonnet::decode_symb($symb);
340: my $foldertitle=&Apache::lonnet::gettitle($map);
341: &Apache::lonxml::debug("map is $map title is $foldertitle");
1.252 albertel 342: return (<<ENDCHECKOUT);
1.253 albertel 343: <h2>The resources in "$foldertitle" are open for a limited time. Once you click the 'Show Resource' button below you have $time to complete all resources "$foldertitle".</h2>
1.252 albertel 344: <form name="markaccess" method="POST" action="$ENV{'request.uri'}">
345: <input type="hidden" name="markaccess" value="yes" />
346: <input type="button" name="accessbutton" value="Show Resource" onClick="javascript:if (confirm('Start Timer?')) { document.markaccess.submit(); }" />
347: </form>
348: ENDCHECKOUT
349: }
350:
1.204 albertel 351: sub init_problem_globals {
352: my ($type)=@_;
353: #initialize globals
354: if ($type eq 'problem') {
355: $Apache::inputtags::part='0';
356: @Apache::inputtags::partlist=('0');
1.241 albertel 357:
358: $Apache::lonhomework::problemstatus=&get_problem_status('0')
1.204 albertel 359: } else {
360: $Apache::inputtags::part='';
361: @Apache::inputtags::partlist=();
362: $Apache::lonhomework::problemstatus='';
363: }
364: @Apache::inputtags::responselist = ();
365: @Apache::inputtags::importlist = ();
366: @Apache::inputtags::previous=();
367: @Apache::inputtags::previous_version=();
368: $Apache::structuretags::printanswer='No';
369: @Apache::structuretags::whileconds=();
370: @Apache::structuretags::whilebody=();
371: @Apache::structuretags::whileline=();
372: $Apache::lonhomework::scantronmode=0;
373: undef($Apache::lonhomework::name);
374:
375: }
376:
377: sub reset_problem_globals {
378: my ($type)=@_;
379: undef(%Apache::lonhomework::history);
380: undef(%Apache::lonhomework::results);
381: undef($Apache::inputtags::part);
1.208 albertel 382: #don't undef this, lonhomework.pm takes care of this, we use this to
383: #detect if we try to do 2 problems in one file
384: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 385: undef($Apache::lonhomework::name);
386: }
387:
1.241 albertel 388: sub set_problem_state {
1.240 albertel 389: my ($part)=@_;
390: if ($ENV{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
391: $Apache::lonhomework::history{"resource.$part.solved"}=
392: 'correct_by_student';
393: }
394: }
395:
1.241 albertel 396: sub get_problem_status {
397: my ($part)=@_;
398: my $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
399: &Apache::lonxml::debug("problem status for $part is $problem_status");
400: &Apache::lonxml::debug("env probstat is ".$ENV{'form.problemstatus'});
401: if ($ENV{'request.state'} eq 'construct' &&
402: defined($ENV{'form.problemstatus'})) {
403: $problem_status=$ENV{'form.problemstatus'};
404: }
405: return $problem_status;
406: }
407:
1.9 albertel 408: sub start_problem {
1.159 albertel 409: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.19 albertel 410:
1.184 albertel 411: if ( $Apache::inputtags::part ne '' ||
412: $Apache::lonhomework::parsing_a_problem) {
413: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
414: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser);
1.159 albertel 415: return '';
416: }
1.184 albertel 417:
418: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 419: &init_problem_globals('problem');
1.166 albertel 420:
421: if (defined($ENV{'scantron.maxquest'})) {
422: $Apache::lonhomework::scantronmode=1;
423: }
1.161 albertel 424:
1.246 albertel 425: &initialize_storage();
1.159 albertel 426: if ($target ne 'analyze') {
427: if ($target eq 'web') {
428: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
1.238 albertel 429: }
1.241 albertel 430: if ($ENV{'request.state'} eq 'construct') { &set_problem_state('0'); }
1.159 albertel 431: $Apache::lonhomework::type=&Apache::lonnet::EXT('resource.0.type');
1.237 albertel 432: if (($ENV{'request.state'} eq 'construct') &&
433: defined($ENV{'form.problemtype'})) {
434: $Apache::lonhomework::type=$ENV{'form.problemtype'};
435: }
1.240 albertel 436: &Apache::lonxml::debug("Found this to be of type :$Apache::ltonhomework::type:");
1.159 albertel 437: }
1.164 albertel 438: if ($Apache::lonhomework::type eq '' ) {
1.159 albertel 439: my $uri=$ENV{'request.uri'};
440: if ($uri=~/\.(\w+)$/) {
441: $Apache::lonhomework::type=$1;
442: &Apache::lonxml::debug("Using type of $1");
443: } else {
444: $Apache::lonhomework::type='problem';
445: &Apache::lonxml::debug("Using default type, problem, :$uri:");
446: }
1.87 albertel 447: }
1.58 www 448:
1.159 albertel 449: #added vars to the scripting enviroment
1.213 albertel 450: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 451: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 452: &Apache::run::run($expression,$safeeval);
1.159 albertel 453: my $status;
454: my $accessmsg;
455:
456: #should get back a <html> or the neccesary stuff to start XML/MathML
457: my ($result,$head_tag_start,$body_tag_start,$form_tag_start)=
458: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
459: if ($target eq 'tex' and $ENV{'request.symb'} =~ m/\.page_/) {$result='';}
460:
461: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval); }
462: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
463: $target eq 'tex') {
464: #handle exam checkout
465: if ($Apache::lonhomework::type eq 'exam') {
466: my $token=
467: $Apache::lonhomework::history{"resource.0.outtoken"};
468: if (($ENV{'form.doescheckout'}) && (!$token)) {
469: $token=&Apache::lonxml::maketoken();
470: $Apache::lonhomework::history{"resource.0.outtoken"}=
471: $token;
472: }
473: $body_tag_start.=&Apache::lonxml::printtokenheader($target,$token);
1.142 albertel 474: }
1.252 albertel 475: if ($ENV{'form.markaccess'}) {
476: &Apache::lonnet::set_first_access('map');
477: }
1.159 albertel 478: #handle rand seed in construction space
479: my $rndseed=&setup_rndseed($safeeval);
1.162 albertel 480: my ($symb)=&Apache::lonxml::whichuser();
1.163 albertel 481: if ($ENV{'request.state'} ne "construct" && $symb eq '') {
1.162 albertel 482: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
483: $rndseed.'" />'.
484: '<input type="submit" name="resetdata"
1.211 albertel 485: value="'.&mt('New Problem Variation').'" />'.
1.164 albertel 486: '<input type="hidden" name="username"
1.185 albertel 487: value="'.$ENV{'form.username'}.'" /> <br />';
1.162 albertel 488: }
1.159 albertel 489: ($status,$accessmsg) = &Apache::lonhomework::check_access('0');
490: push (@Apache::inputtags::status,$status);
491: my $expression='$external::datestatus="'.$status.'";';
492: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
493: &Apache::run::run($expression,$safeeval);
494: &Apache::lonxml::debug("Got $status");
495: if (( $status eq 'CLOSED' ) ||
496: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 497: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 498: ( $status eq 'BANNED') ||
1.216 albertel 499: ( $status eq 'UNAVAILABLE') ||
500: ( $status eq 'INVALID_ACCESS')) {
1.159 albertel 501: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser);
502: if ( $target eq "web" ) {
503: $result.= $head_tag_start.'</head>';
504: my $msg=$body_tag_start;
505: if ($status eq 'UNAVAILABLE') {
1.245 albertel 506: $msg.='<h1>'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</h1>';
1.253 albertel 507: } elsif ($status ne 'NOT_YET_VIEWED') {
1.245 albertel 508: $msg.='<h1>'.&mt('Not open to be viewed').'</h1>';
1.159 albertel 509: }
1.216 albertel 510: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.159 albertel 511: $msg.='The problem '.$accessmsg;
512: } elsif ($status eq 'UNCHECKEDOUT') {
513: $msg.=&checkout_msg;
1.252 albertel 514: } elsif ($status eq 'NOT_YET_VIEWED') {
1.253 albertel 515: $msg.=&firstaccess_msg($accessmsg,$symb);
1.159 albertel 516: }
517: $result.=$msg.'<br />';
518: } elsif ($target eq 'tex') {
519: $result.='\begin{document}\noindent \vskip 1 mm \begin{minipage}{\textwidth}\vskip 0 mm';
520: if ($status eq 'UNAVAILABLE') {
1.211 albertel 521: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 522: } else {
1.211 albertel 523: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 524: }
525: }
526: } elsif ($target eq 'web') {
527: my $name= &get_resource_name($parstack,$safeeval);
1.227 albertel 528: $result.="$head_tag_start<title>$name</title></head>
1.158 sakharuk 529: $body_tag_start \n $form_tag_start".
1.227 albertel 530: '<input type="hidden" name="submitted" value="yes" />';
531: # create a page header and exit
532: if ($ENV{'request.state'} eq "construct") {
533: $result.= &problem_web_to_edit_header($ENV{'form.rndseed'});
534: }
535: # if we are viewing someone else preserve that info
536: if (defined $ENV{'form.grade_symb'}) {
537: foreach my $field ('symb','courseid','domain','username') {
538: $result .= '<input type="hidden" name="grade_'.$field.
539: '" value="'.$ENV{"form.grade_$field"}.'" />'."\n";
1.159 albertel 540: }
541: }
542: } elsif ($target eq 'tex') {
1.192 sakharuk 543: my $startminipage = '';
1.191 sakharuk 544: if (not $ENV{'form.problem_split'}=~/yes/) {
1.192 sakharuk 545: $startminipage = '\begin{minipage}{\textwidth}';
1.178 sakharuk 546: }
1.159 albertel 547: my $id = $Apache::inputtags::part;
548: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.223 sakharuk 549: my $packages=&Apache::lonnet::metadata($ENV{'request.uri'},'packages');
550: my @packages = split /,/,$packages;
551: my $allow_print_points = 0;
552: foreach my $partial_key (@packages) {
1.230 albertel 553: if ($partial_key=~m/^part_0$/) {
1.223 sakharuk 554: $allow_print_points=1;
1.159 albertel 555: }
556: }
557: my $duedate = &Apache::lonnet::EXT("resource.$id.duedate");
558: $duedate = POSIX::strftime("%c",localtime($duedate));
559: my $temp_file;
560: my $filename = "/home/httpd/prtspool/$ENV{'user.name'}_$ENV{'user.domain'}_printout.due";
561: if (-e $filename) {
562: $temp_file = Apache::File->new($filename);
563: } else {
564: $temp_file = Apache::File->new('>>'.$filename);
565: }
566: my @due_file_content = <$temp_file>;
567: my $due_file_content = $due_file_content[$#due_file_content];
568: chomp $due_file_content;
1.257 sakharuk 569: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
1.159 albertel 570: if ($due_file_content ne $duedate) {
571: $temp_file = Apache::File->new('>'.$filename);
572: print $temp_file "$duedate\n";
573: if (not $ENV{'request.symb'} =~ m/\.page_/) {
574: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
1.206 sakharuk 575: $result .= '\begin{document} \typeout{STAMPOFPASSEDRESOURCESTART Resource <h2>"'.$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 576: } else {
1.206 sakharuk 577: $result .= '\begin{document} \typeout{STAMPOFPASSEDRESOURCESTART Resource <h2>"'.$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}{'.$name_of_resourse.'}';
1.159 albertel 578: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
579: }
1.104 sakharuk 580: } else {
1.159 albertel 581: $result .= '\vskip 1mm\textit{Due date: '.$duedate.'} \\\\\\\\';
1.104 sakharuk 582: }
1.101 sakharuk 583: } else {
1.159 albertel 584: if (not $ENV{'request.symb'} =~ m/\.page_/) {
1.206 sakharuk 585: $result .= '\begin{document} \typeout{STAMPOFPASSEDRESOURCESTART Resource <h2>"'.$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}{'.$name_of_resourse.'}';
1.159 albertel 586: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
587: } else {
588: $result .= '\vskip 1mm \\\\\\\\';
589: }
590: }
1.99 sakharuk 591: }
1.159 albertel 592: } elsif ($target eq 'edit') {
593: $result.=$head_tag_start."</head>".$body_tag_start.$form_tag_start.
594: &problem_edit_header();
1.226 albertel 595: $Apache::lonxml::warnings_error_header=
596: &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 597: my $temp=&Apache::edit::insertlist($target,$token);
598: $result.=$temp;
599: } elsif ($target eq 'modified') {
600: $result=$token->[4];
601: $result.=&Apache::edit::handle_insert();
602: } else {
603: # page_start returned a starting result, delete it if we don't need it
604: $result = '';
1.99 sakharuk 605: }
1.159 albertel 606: return $result;
1.9 albertel 607: }
608:
609: sub end_problem {
1.159 albertel 610: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
611: my $result='';
612: my $status=$Apache::inputtags::status['-1'];
613: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
614: $target eq 'tex') {
1.249 albertel 615: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 616: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 617: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
618: &Apache::inputtags::grade;
619: } else {
620: # move any submission data to .hidden
621: &Apache::inputtags::hidealldata($Apache::inputtags::part);
622: }
1.159 albertel 623: } elsif ( ($target eq 'web' || $target eq 'tex') &&
624: $Apache::inputtags::part eq '0' &&
1.252 albertel 625: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED') {
1.159 albertel 626: # if part is zero, no <part>s existed, so we need show the current
627: # grading status
628: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
629: $result.= $gradestatus;
630: }
631: if (
632: (($target eq 'web') && ($ENV{'request.state'} ne 'construct')) ||
633: ($target eq 'answer') || ($target eq 'tex')
634: ) {
1.227 albertel 635: if ($target ne 'tex' &&
636: $ENV{'form.answer_output_mode'} ne 'tex') {
1.254 www 637: $result.="</form>";
638: $result.=&Apache::lonhtmlcommon::htmlareaselectactive(@Apache::lonxml::htmlareafields);
639: $result.="</body>\n";
1.159 albertel 640: }
641: if ($target eq 'web') {
642: $result.=&Apache::lonxml::xmlend();
643: } elsif ($target eq 'tex') {
1.178 sakharuk 644: my $endminipage = '';
1.191 sakharuk 645: if (not $ENV{'form.problem_split'}=~/yes/) {
1.178 sakharuk 646: $endminipage = '\end{minipage}';
647: }
1.257 sakharuk 648: if ($ENV{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 649: $result.=&Apache::lonxml::xmlend($target,$parser);
1.257 sakharuk 650: $result=~s/<\/html>//;
1.159 albertel 651: } else {
1.262 sakharuk 652: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
653: if (not $ENV{'request.symb'} =~ m/\.page_/) {
654: $result .= $endminipage.'\end{document} ';
655: } else {
656: $result .= '';
657: }
1.159 albertel 658: }
659: }
660: }
661: if ($target eq 'grade') {
662: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
663: &finalize_storage();
664: }
1.172 albertel 665: if ($target eq 'answer' && ($ENV{'request.state'} eq 'construct')
1.173 albertel 666: && $ENV{'form.answer_output_mode'} ne 'tex') {
1.172 albertel 667: $result.='</html>'; # normally we get it from xmlend, but in CSTR
668: # we always show answer mode too.
1.159 albertel 669: }
670: } elsif ($target eq 'meta') {
671: if ($Apache::inputtags::part eq '0') {
1.179 albertel 672: @Apache::inputtags::response=();
1.159 albertel 673: $result=&Apache::response::mandatory_part_meta;
674: }
1.215 albertel 675: $result.=&Apache::response::meta_part_order();
1.258 albertel 676: $result.=&Apache::response::meta_response_order();
1.159 albertel 677: } elsif ($target eq 'edit') {
678: &Apache::lonxml::debug("in end_problem with $target, edit");
679: $result = &problem_edit_footer();
680: }
1.155 albertel 681:
1.177 albertel 682: if ($ENV{'request.state'} eq 'construct' && $target eq 'web') {
683: &Apache::inputtags::check_for_duplicate_ids();
684: }
1.204 albertel 685:
686: &reset_problem_globals('problem');
1.159 albertel 687:
688: return $result;
1.48 albertel 689: }
690:
1.108 albertel 691:
1.48 albertel 692: sub start_library {
1.159 albertel 693: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
694: my ($result,$head_tag_start,$body_tag_start,$form_tag_start);
1.244 albertel 695: if ($$tagstack[0] eq 'library') {
696: &init_problem_globals('library');
697: $Apache::lonhomework::type='problem';
698: }
1.159 albertel 699: if ($target eq 'edit') {
700: ($result,$head_tag_start,$body_tag_start,$form_tag_start)=
701: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
702: $result.=$head_tag_start."</head>".$body_tag_start.$form_tag_start.
703: &problem_edit_header();
704: my $temp=&Apache::edit::insertlist($target,$token);
705: $result.=$temp;
706: } elsif ($target eq 'modified') {
707: $result=$token->[4];
708: $result.=&Apache::edit::handle_insert();
709: } elsif ($target eq 'web' && $$tagstack[0] ne 'problem' &&
710: $ENV{'request.state'} eq "construct" ) {
711: ($result,$head_tag_start,$body_tag_start,$form_tag_start)=
712: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
713: my $name=&get_resource_name($parstack,$safeeval);
714: my $rndseed=&setup_rndseed($safeeval);
715: $result.="$head_tag_start<title>$name</title></head>
1.105 albertel 716: $body_tag_start \n $form_tag_start".
1.159 albertel 717: '<input type="hidden" name="submitted" value="yes" />';
718: $result.=&problem_web_to_edit_header($rndseed);
719: }
720: return $result;
1.48 albertel 721: }
722:
723: sub end_library {
1.159 albertel 724: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
725: my $result='';
726: if ($target eq 'edit') {
727: $result=&problem_edit_footer();
728: } elsif ($target eq 'web' && $$tagstack[0] ne 'problem' &&
729: $ENV{'request.state'} eq "construct") {
730: $result.='</form></body>'.&Apache::lonxml::xmlend();
731: }
1.204 albertel 732: if ($$tagstack[0] eq 'library') { &reset_problem_globals('library') };
1.159 albertel 733: return $result;
1.197 www 734: }
735:
736: sub start_definetag {
737: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
738:
739: my $result;
740:
741: my $name = $token->[2]->{'name'};
742: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser);
743: if ($name=~/^\//) {
744: $result=
745: '<br /><table bgcolor="#FFBBBB"><tr><th>END <tt>'.$name.'</tt></th></tr>';
746: } else {
747: $result=
748: '<br /><table bgcolor="#BBFFBB"><tr><th>BEGIN <tt>'.$name.'</tt></th></tr>';
749: }
750: $skip=~s/\</\<\;/gs;
751: $skip=~s/\>/\>\;/gs;
752: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
753: return $result;
754: }
755:
756: sub end_definetag {
757: return '';
1.1 albertel 758: }
759:
760: sub start_block {
1.201 albertel 761: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 762:
763: my $result;
1.1 albertel 764:
1.160 albertel 765: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.131 albertel 766: $target eq 'tex' || $target eq 'analyze') {
1.159 albertel 767: my $code = $token->[2]->{'condition'};
1.201 albertel 768: if (defined($code)) {
1.137 albertel 769: if (!$Apache::lonxml::default_homework_loaded) {
770: &Apache::lonxml::default_homework_load($safeeval);
771: }
1.131 albertel 772: $result = &Apache::run::run($code,$safeeval);
773: &Apache::lonxml::debug("block :$code: returned :$result:");
774: } else {
775: $result='1';
776: }
777: if ( ! $result ) {
1.201 albertel 778: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 779: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
780: }
781: $result='';
782: } elsif ($target eq 'edit') {
783: $result .=&Apache::edit::tag_start($target,$token);
784: $result .=&Apache::edit::text_arg('Test Condition:','condition',
785: $token,40);
786: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
787: } elsif ($target eq 'modified') {
788: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
789: $safeeval,'condition');
790: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 791: }
1.131 albertel 792: return $result;
1.1 albertel 793: }
794:
795: sub end_block {
1.167 www 796: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
797: my $result;
798: if ($target eq "edit") {
799: $result.= &Apache::edit::tag_end($target,$token,'');
800: }
801: return $result;
802: }
803:
804: sub start_languageblock {
1.201 albertel 805: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 806:
807: my $result;
808:
809: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
810: $target eq 'tex' || $target eq 'analyze') {
1.201 albertel 811: my $include = $token->[2]->{'include'};
812: my $exclude = $token->[2]->{'exclude'};
813: my %languages=&Apache::loncommon::display_languages();
814: $result='1';
815: if ($include) {
816: $result='';
817: foreach (split(/\,/,$include)) {
818: if ($languages{$_}) { $result='1'; }
819: }
820: }
821: if ($exclude) {
822: foreach (split(/\,/,$exclude)) {
823: if ($languages{$_}) { $result='0'; }
824: }
825: }
826: if ( ! $result ) {
827: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
828: $style);
829: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
830: }
831: $result='';
1.167 www 832: } elsif ($target eq 'edit') {
833: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 834: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 835: $token,40);
1.211 albertel 836: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 837: $token,40);
838: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
839: } elsif ($target eq 'modified') {
840: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 841: $safeeval,'include',
842: 'exclude');
1.167 www 843: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
844: }
845: return $result;
846: }
847:
848: sub end_languageblock {
1.170 www 849: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
850: my $result;
1.201 albertel 851: if ($target eq "edit") {
1.170 www 852: $result.= &Apache::edit::tag_end($target,$token,'');
853: }
854: return $result;
855: }
856:
857: sub start_instructorcomment {
1.201 albertel 858: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 859:
860: my $result;
861:
862: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
863: $target eq 'tex' || $target eq 'analyze') {
864: $result=($ENV{'request.role'}=~/^(in|cc|au|ca|li)/);
865: if ( ! $result ) {
1.201 albertel 866: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
867: $parser,$style);
1.170 www 868: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
869: }
870: $result='';
871: } elsif ($target eq 'edit') {
872: $result .=&Apache::edit::tag_start($target,$token);
873: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
874: }
875: return $result;
876: }
877:
878: sub end_instructorcomment {
1.159 albertel 879: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 880: my $result;
881: if ($target eq "edit") {
882: $result.= &Apache::edit::tag_end($target,$token,'');
883: }
884: return $result;
1.4 tsai 885: }
886:
887: sub start_while {
1.159 albertel 888: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
889:
1.160 albertel 890: my $result;
1.161 albertel 891: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.160 albertel 892: $target eq 'tex' || $target eq 'analyze') {
893: my $code = $token->[2]->{'condition'};
1.4 tsai 894:
1.160 albertel 895: push( @Apache::structuretags::whileconds, $code);
896: if (!$Apache::lonxml::default_homework_loaded) {
897: &Apache::lonxml::default_homework_load($safeeval);
898: }
899: my $result = &Apache::run::run($code,$safeeval);
1.161 albertel 900: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser);
1.160 albertel 901: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 902: push( @Apache::structuretags::whileline, $token->[5]);
903: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 904: if ( $result ) {
905: &Apache::lonxml::newparser($parser,\$bodytext);
906: }
907: } elsif ($target eq 'edit') {
908: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 909: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 910: $token,40);
911: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
912: } elsif ($target eq 'modified') {
913: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
914: $safeeval,'condition');
915: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 916: }
1.160 albertel 917: return $result;
1.4 tsai 918: }
919:
920: sub end_while {
1.159 albertel 921: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 922: my $result;
923:
924: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
925: $target eq 'tex' || $target eq 'analyze') {
926: my $code = pop(@Apache::structuretags::whileconds);
927: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 928: my $line = pop(@Apache::structuretags::whileline);
929: my $return = &Apache::run::run($code,$safeeval);
930: my $starttime=time;
931: my $error=0;
932: while ($return) {
933: if (time-$starttime >
934: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
935: $return = 0; $error=1; next;
936: }
937: $result.=&Apache::scripttag::xmlparse($bodytext);
938: $return = &Apache::run::run($code,$safeeval);
939: }
940: if ($error) {
1.211 albertel 941: &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 942: }
943: } elsif ($target eq "edit") {
944: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 945: }
1.160 albertel 946: return $result;
1.1 albertel 947: }
1.6 tsai 948:
1.160 albertel 949: # <randomlist show="1">
1.6 tsai 950: # <tag1>..</tag1>
951: # <tag2>..</tag2>
952: # <tag3>..</tag3>
1.160 albertel 953: # ...
1.6 tsai 954: # </randomlist>
955: sub start_randomlist {
1.159 albertel 956: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
957: my $result;
958: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
959: $target eq 'tex' || $target eq 'analyze') {
960: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
961: my $b_parser= HTML::TokeParser->new(\$body);
962: my $b_tok;
963: my @randomlist;
964: my $list_item;
965: while($b_tok = $b_parser->get_token() ) {
966: if($b_tok->[0] eq 'S') { # start tag
967: # get content of the tag until matching end tag
968: # get all text upto the matching tag
969: # and push the content into @randomlist
970: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
971: $b_parser);
972: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
973: push(@randomlist,$list_item);
974: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
975: # $list_item</b>";
976: }
977: if($b_tok->[0] eq 'T') { # text
978: # what to do with text in between tags?
979: # print "<b>TEXT $b_tok->[1]</b><br />";
980: }
981: # if($b_tok->[0] eq 'E') { # end tag, should not happen
982: # print "<b>END-TAG $b_tok->[1]</b><br />";
983: # }
984: }
985: my @idx_arr = (0 .. $#randomlist);
986: &Apache::structuretags::shuffle(\@idx_arr);
987: my $bodytext = '';
988: my $show=$#randomlist;
989: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
990: $showarg--;
991: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
992: for(0 .. $show) {
993: $bodytext .= "$randomlist[ $idx_arr[$_] ]";
994: }
995: &Apache::lonxml::newparser($parser,\$bodytext);
996: } elsif ($target eq 'edit' ) {
997: $result .=&Apache::edit::tag_start($target,$token);
998: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
999: $token,5);
1000: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1001: } elsif ($target eq 'modified' ) {
1002: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1003: $safeeval,'show');
1004: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1005: }
1006: return $result;
1.7 tsai 1007: }
1008:
1009: sub shuffle {
1010: my $a=shift;
1011: my $i;
1.70 albertel 1012: if (defined(@$a)) {
1.251 albertel 1013: &Apache::response::pushrandomnumber();
1.159 albertel 1014: for($i=@$a;--$i;) {
1015: my $j=int(&Math::Random::random_uniform() * ($i+1));
1016: next if $i == $j;
1017: @$a[$i,$j] = @$a[$j,$i];
1018: }
1.251 albertel 1019: &Apache::response::poprandomnumber();
1.7 tsai 1020: }
1.6 tsai 1021: }
1022:
1023: sub end_randomlist {
1.159 albertel 1024: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1025: my $result;
1026: if ($target eq 'edit' ) {
1027: $result=&Apache::edit::tag_end($target,$token,
1028: 'End Randomly Parsed Block');
1029: }
1030: return $result;
1.6 tsai 1031: }
1032:
1.11 albertel 1033: sub start_part {
1.159 albertel 1034: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1035: my $result='';
1036: my $id= &Apache::lonxml::get_param('id',$parstack,$safeeval);
1037: if ($id eq '') { $id = $Apache::lonxml::curdepth; }
1038: $Apache::inputtags::part=$id;
1.177 albertel 1039: push(@Apache::inputtags::partlist,$id);
1040: @Apache::inputtags::response=();
1.159 albertel 1041: @Apache::inputtags::previous=();
1042: @Apache::inputtags::previous_version=();
1.241 albertel 1043: $Apache::lonhomework::problemstatus=&get_problem_status($id);
1.159 albertel 1044: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 1045: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
1046: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1047:
1.214 albertel 1048: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 1049: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 1050: &Apache::run::run($expression,$safeeval);
1.159 albertel 1051:
1052: if ($target eq 'meta') {
1.224 www 1053: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
1054: return &Apache::response::mandatory_part_meta.
1055: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 1056: } elsif ($target eq 'web' || $target eq 'grade' ||
1057: $target eq 'answer' || $target eq 'tex') {
1058: if ($hidden) {
1059: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser);
1060: } else {
1061: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
1062: push (@Apache::inputtags::status,$status);
1063: my $expression='$external::datestatus="'.$status.'";';
1064: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
1065: &Apache::run::run($expression,$safeeval);
1.240 albertel 1066: if ($ENV{'request.state'} eq 'construct') {
1.241 albertel 1067: &set_problem_state($Apache::inputtags::part);
1.240 albertel 1068: }
1.216 albertel 1069: if (( $status eq 'CLOSED' ) ||
1070: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1071: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 1072: ( $status eq 'BANNED') ||
1073: ( $status eq 'UNAVAILABLE') ||
1074: ( $status eq 'INVALID_ACCESS')) {
1.159 albertel 1075: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser);
1076: if ( $target eq "web" ) {
1.211 albertel 1077: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 1078: } elsif ( $target eq 'tex' ) {
1.195 sakharuk 1079: if (not $ENV{'form.problem_split'}=~/yes/) {
1.211 albertel 1080: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 1081: } else {
1.211 albertel 1082: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 1083: }
1.159 albertel 1084: }
1085: } else {
1086: if ($target eq 'tex') {
1.195 sakharuk 1087: if (not $ENV{'form.problem_split'}=~/yes/) {
1.264 sakharuk 1088: if ($$tagstack[-2] eq 'td') {
1089: $result.='\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1090: } else {
1091: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1092: }
1.195 sakharuk 1093: }
1.159 albertel 1094: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.230 albertel 1095: my $allkeys=&Apache::lonnet::metadata($ENV{'request.uri'},'packages');
1.222 sakharuk 1096: my @allkeys = split /,/,$allkeys;
1097: my $allow_print_points = 0;
1098: foreach my $partial_key (@allkeys) {
1.230 albertel 1099: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 1100: if ($1 ne '0') {$allow_print_points=1;}
1101: }
1102: }
1103: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
1.233 www 1104: } elsif ($target eq 'web') {
1105: $result.='<a name="'.&Apache::lonnet::escape($Apache::inputtags::part).'" />';
1.159 albertel 1106: }
1107: }
1108: }
1109: } elsif ($target eq 'edit') {
1110: $result.=&Apache::edit::tag_start($target,$token);
1111: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
1112: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 1113: ' '.
1114: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 1115: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
1116: } elsif ($target eq 'modified') {
1117: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 1118: $safeeval,'id','display');
1.159 albertel 1119: if ($constructtag) {
1.225 albertel 1120: #limiting ids to only letters numbers, and space
1.224 www 1121: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 1122: $result = &Apache::edit::rebuild_tag($token);
1123: $result.=&Apache::edit::handle_insert();
1124: }
1125: }
1126: return $result;
1.11 albertel 1127: }
1128:
1129: sub end_part {
1.159 albertel 1130: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1131: &Apache::lonxml::debug("in end_part $target ");
1132: my $status=$Apache::inputtags::status['-1'];
1133: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1134: my $result='';
1135: if ( $target eq 'meta' ) {
1136: $result='';
1.249 albertel 1137: } elsif ($target eq 'grade') {
1138: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1139: !$hidden) {
1140: $result=&Apache::inputtags::grade;
1141: } else {
1142: # move any submission data to .hidden
1143: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1144: }
1.159 albertel 1145: } elsif (($target eq 'web' || $target eq 'tex') && !$hidden ) {
1146: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
1147: $target);
1.212 albertel 1148: if ($Apache::lonhomework::type eq 'exam' && $target eq 'tex') {
1149: $gradestatus='';
1150: }
1.159 albertel 1151: $result=$gradestatus;
1.265 ! sakharuk 1152: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 1153: } elsif ($target eq 'edit') {
1154: $result=&Apache::edit::end_table();
1.159 albertel 1155: }
1156: pop @Apache::inputtags::status;
1157: $Apache::inputtags::part='';
1158: return $result;
1.11 albertel 1159: }
1.1 albertel 1160:
1.25 albertel 1161: sub start_preduedate {
1.159 albertel 1162: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1163: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' || $target eq 'tex') {
1.236 albertel 1164: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.159 albertel 1165: if ($Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 1166: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
1167: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.159 albertel 1168: &Apache::lonxml::get_all_text("/preduedate",$parser);
1169: }
1.24 albertel 1170: }
1.159 albertel 1171: return '';
1.24 albertel 1172: }
1173:
1.25 albertel 1174: sub end_preduedate {
1.159 albertel 1175: return '';
1.24 albertel 1176: }
1177:
1.25 albertel 1178: sub start_postanswerdate {
1.159 albertel 1179: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.234 albertel 1180: if ($target eq 'web' || $target eq 'grade') {
1.159 albertel 1181: if ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER') {
1182: &Apache::lonxml::get_all_text("/postanswerdate",$parser);
1183: }
1184: } elsif ($target eq 'tex') {
1.234 albertel 1185: &Apache::lonxml::get_all_text("/postanswerdate",$parser);
1.159 albertel 1186: }
1187: return '';
1.24 albertel 1188: }
1189:
1.25 albertel 1190: sub end_postanswerdate {
1.159 albertel 1191: return '';
1.24 albertel 1192: }
1193:
1.25 albertel 1194: sub start_notsolved {
1.159 albertel 1195: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1196: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1197: $target eq 'tex') {
1198: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1199: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 1200: if ($gradestatus =~ /^correct/ &&
1201: &Apache::response::show_answer()) {
1.159 albertel 1202: &Apache::lonxml::debug("skipping");
1203: &Apache::lonxml::get_all_text("/notsolved",$parser);
1204: }
1.24 albertel 1205: }
1.159 albertel 1206: return '';
1.24 albertel 1207: }
1208:
1.25 albertel 1209: sub end_notsolved {
1.159 albertel 1210: return '';
1.24 albertel 1211: }
1212:
1213: sub start_solved {
1.159 albertel 1214: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1215: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1216: $target eq 'tex') {
1217: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 1218: if ($gradestatus !~ /^correct/ ||
1219: !&Apache::response::show_answer()) {
1.159 albertel 1220: &Apache::lonxml::get_all_text("/solved",$parser);
1221: }
1.24 albertel 1222: }
1.159 albertel 1223: return '';
1.24 albertel 1224: }
1225:
1226: sub end_solved {
1.248 albertel 1227: return '';
1228: }
1229:
1230: sub start_problemtype {
1231: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1232: my $result;
1233: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1234: $target eq 'tex' || $target eq 'analyze') {
1235: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
1236: if (!defined($mode)) { $mode='show'; }
1237: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
1238: my $found=0;
1239: foreach my $type (split(',',$for)) {
1240: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
1241: }
1242: if ($mode eq 'show' && !$found) {
1243: &Apache::lonxml::get_all_text("/problemtype",$parser);
1244: }
1245: if ($mode eq 'hide' && $found) {
1246: &Apache::lonxml::get_all_text("/problemtype",$parser);
1247: }
1248: } elsif ($target eq 'edit') {
1249: $result .=&Apache::edit::tag_start($target,$token);
1250: $result.=&Apache::edit::select_arg('Mode:','mode',
1251: [['show','Show'],
1252: ['hide','Hide']]
1253: ,$token);
1254: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
1255: [ ['exam','Exam/Quiz Problem'],
1256: ['survey','Survey'],
1257: ['problem','Homework Problem'] ]
1258: ,$token);
1259: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1260: } elsif ($target eq 'modified') {
1261: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1262: $safeeval,'mode','for');
1263: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1264: }
1265: return $result;
1266: }
1267:
1268: sub end_problemtype {
1.159 albertel 1269: return '';
1.24 albertel 1270: }
1.34 albertel 1271:
1272: sub start_startouttext {
1.159 albertel 1273: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1274: my @result=(''.'');
1275: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1276: return (@result);
1.34 albertel 1277: }
1.159 albertel 1278:
1.34 albertel 1279: sub end_startouttext {
1.159 albertel 1280: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1281: my $result='';
1282: my $text='';
1283:
1284: if ($target eq 'edit') {
1285: $text=&Apache::lonxml::get_all_text("endouttext",$parser);
1.211 albertel 1286: $result.=&Apache::edit::start_table($token)."<tr><td>".&mt('Text Block')."</td>
1287: <td>".&mt('Delete:').
1.159 albertel 1288: &Apache::edit::deletelist($target,$token)
1289: ."</td>
1.42 albertel 1290: <td>".
1.159 albertel 1291: &Apache::edit::insertlist($target,$token).
1292: &Apache::edit::end_row().
1293: &Apache::edit::start_spanning_row()."\n"
1.188 bowersj2 1294: . &Apache::loncommon::helpLatexCheatsheet () .
1.255 www 1295: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 1296: }
1297: if ($target eq 'modified') {
1.219 albertel 1298: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 1299: }
1300: if ($target eq 'tex') {
1301: $result .= '\noindent ';
1302: }
1303: return $result;
1.34 albertel 1304: }
1.159 albertel 1305:
1.34 albertel 1306: sub start_endouttext {
1.159 albertel 1307: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1308: my $result='';
1309: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
1310: if ($target eq "modified") {
1311: $result='<endouttext />'.
1312: &Apache::edit::handle_insertafter('startouttext'); }
1313: return $result;
1.34 albertel 1314: }
1.159 albertel 1315:
1.34 albertel 1316: sub end_endouttext {
1.159 albertel 1317: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1318: my @result=('','');
1319: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
1320: return (@result);
1.34 albertel 1321: }
1.159 albertel 1322:
1.45 albertel 1323: sub delete_startouttext {
1.159 albertel 1324: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1325: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser);
1326: my $text=$$parser['-1']->get_text("/endouttext");
1327: my $ntoken=$$parser['-1']->get_token();
1328: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
1329: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
1330: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
1331: # they did the last time round
1332: &Apache::lonxml::increasedepth($ntoken);
1333: &Apache::lonxml::decreasedepth($ntoken);
1334: return 1;
1.193 www 1335: }
1336:
1337: sub start_simpleeditbutton {
1338: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1339: my $result='';
1340: if (($target eq 'web') &&
1341: (&Apache::lonnet::allowed('srm',$ENV{'request.course.id'}))) {
1.220 www 1342: my $url=$ENV{'request.noversionuri'};
1.193 www 1343: $url=~s/\?.*$//;
1.194 www 1344: $result='<table width="100%" bgcolor="#FFFFAA" border="2"><tr><td>'.
1.211 albertel 1345: '<a href="'.$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 1346: &Apache::loncommon::help_open_topic('Caching').'</td></tr></table><br />';
1.193 www 1347: }
1348: return $result;
1349: }
1350:
1351: sub end_simpleeditbutton {
1352: return '';
1.45 albertel 1353: }
1.34 albertel 1354:
1.1 albertel 1355: 1;
1356: __END__
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