Annotation of loncom/homework/structuretags.pm, revision 1.260.2.4
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.260.2.4! albertel 4: # $Id: structuretags.pm,v 1.260.2.3 2004/08/25 20:12:15 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: #
1.254 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: }
1.260.2.1 albertel 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).
86: &Apache::lonhtmlcommon::htmlareaheaders();
1.159 albertel 87: }
88: my $body_tag_start;
89: if (!defined($found{'body'})) {
90: $body_tag_start='<body onLoad="'.&Apache::lonmenu::loadevents().'" '.
91: 'onUnload="'.&Apache::lonmenu::unloadevents().'" ';
92: my $background=&Apache::lonxml::get_param('background',$parstack,
93: $safeeval);
1.199 www 94: if ($ENV{'browser.imagesuppress'} eq 'on') { $background=''; }
1.159 albertel 95: if ($background) {
96: $Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=
97: $background;
98: $body_tag_start.='background="'.$background.'" ';
99: } else {
100: my $bgcolor=&Apache::lonxml::get_param('bgcolor',$parstack,
101: $safeeval);
1.199 www 102: if (($bgcolor) && ($ENV{'browser.blackwhite'} ne 'on')) {
1.159 albertel 103: $body_tag_start.='bgcolor="'.$bgcolor.'" ';
104: } else {
105: $body_tag_start.='bgcolor="#ffffff"';
106: }
1.199 www 107: }
108: if ($ENV{'browser.fontenhance'} eq 'on') {
109: $body_tag_start.=' style="font-size: x-large;" ';
1.159 albertel 110: }
111: $body_tag_start.='>'.&Apache::lonmenu::menubuttons(undef,$target,1);
112: if ($target eq 'web' && $ENV{'request.state'} ne 'construct') {
1.165 albertel 113: my ($symb,undef,undef,undef,$publicuser)=
114: &Apache::lonxml::whichuser();
115: if ($symb eq '' && !$publicuser) {
1.159 albertel 116: my $help = &Apache::loncommon::help_open_topic("Ambiguous_Reference");
1.211 albertel 117: $help=&mt("Browsing resource, all submissions are temporary.")."<br />";
1.159 albertel 118: $body_tag_start.=$help;
119: }
120: }
1.245 albertel 121: $body_tag_start.=&Apache::lonxml::message_location();
1.159 albertel 122: }
123: my $form_tag_start;
124: if (!defined($found{'form'})) {
125: $form_tag_start='<form name="lonhomework" method="POST" action="'.
126: $ENV{'request.uri'}.'">';
127: }
128: return ($result,$head_tag_start,$body_tag_start,$form_tag_start);
1.105 albertel 129: }
130:
1.141 matthew 131: #use Time::HiRes();
1.105 albertel 132: sub get_resource_name {
1.159 albertel 133: my ($parstack,$safeeval)=@_;
1.204 albertel 134: if (defined($Apache::lonhomework::name)) {
135: return $Apache::lonhomework::name;
136: }
1.159 albertel 137: my $name=&Apache::lonnet::gettitle();
138: if ($name eq '') {
139: $name=&Apache::lonnet::EXT('resource.title');
140: if ($name eq 'con_lost') { $name = ''; }
141: }
1.204 albertel 142: if ($name!~/\S+/) {
143: $name=$ENV{'request.uri'};
1.205 albertel 144: $name=~s-.*/([^/]+)$-$1-;
1.204 albertel 145: }
1.159 albertel 146: $Apache::lonhomework::name=$name;
147: return $name;
1.105 albertel 148: }
149:
150: sub setup_rndseed {
1.159 albertel 151: my ($safeeval)=@_;
152: my $rndseed;
1.162 albertel 153: my ($symb)=&Apache::lonxml::whichuser();
1.247 albertel 154: if ($ENV{'request.state'} eq "construct" || $symb eq '' ||
155: $Apache::lonhomework::history{'resource.CODE'}) {
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: }
1.247 albertel 175: if ($Apache::lonhomework::history{'resource.CODE'}) {
176: $rndseed=&Apache::lonnet::rndseed();
177: }
1.221 albertel 178: if ($safeeval) {
179: &Apache::lonxml::debug("Setting rndseed to $rndseed");
1.250 albertel 180: &Apache::run::run('$external::randomseed="'.$rndseed.'";',$safeeval);
1.221 albertel 181: }
1.159 albertel 182: }
183: return $rndseed;
1.105 albertel 184: }
185:
186: sub problem_edit_header {
1.159 albertel 187: return '<input type="hidden" name="submitted" value="edit" />
1.210 albertel 188: <input type="hidden" name="problemmode" value="'.&mt('Edit').'" />
1.243 matthew 189: <input type="submit" name="problemmode" accesskey="d" value="'.&mt('Discard Edits and View').'" />
190: <input type="submit" name="problemmode" accesskey="x" value="'.&mt('EditXML').'" />
191: <input type="submit" name="Undo" accesskey="u" value="'.&mt('undo').'" /> <hr />
192: <input type="submit" name="submit" accesskey="s" value="'.&mt('Submit Changes and Edit').'" />
193: <input type="submit" name="submit" accesskey="v" value="'.&mt('Submit Changes and View').'" /><table><tr><td>'.
1.260 albertel 194: &Apache::loncommon::help_open_menu('','Problem Editing Help','Problem_Editor_XML_Index','',5,'Authoring',undef,undef,undef,'Problem Editing Help')
195: .'</td></tr></table>'.
1.228 www 196: '<table border="0"><tr><td bgcolor="#DDDDDD">';
1.105 albertel 197: }
198:
199: sub problem_edit_footer {
1.210 albertel 200: return '</td></tr></table><br /><input type="submit" name="submit" value="'.&mt('Submit Changes and Edit').'" />
1.255 www 201: <input type="submit" name="submit" value="'.&mt('Submit Changes and View').'" />'.
202: &Apache::lonhtmlcommon::htmlareaselectactive(@Apache::lonxml::htmlareafields).
203: "\n</form>\n</body>\n</html>";
1.105 albertel 204: }
205:
1.235 albertel 206: sub option {
207: my ($value,$name) = @_;
208: my $result ="<option value='".$value."' ";
209: if ($ENV{'form.'.$name} eq $value) {
210: $result.=" selected='on' ";
211: }
212: $result.='>';
213: return $result;
214: }
215:
1.105 albertel 216: sub problem_web_to_edit_header {
1.159 albertel 217: my ($rndseed)=@_;
1.210 albertel 218: my $result.='<input type="hidden" name="problemmode" value="'.&mt('View').'" />
1.243 matthew 219: <input type="submit" name="problemmode" accesskey="e" value="'.&mt('Edit').'" />
220: <input type="submit" name="problemmode" accesskey="x" value="'.&mt('EditXML').'" />
221: <input type="submit" name="newrandomization" accesskey="a" value="'.&mt('New Randomization').'" />
222: <input type="submit" name="resetdata" accesskey="r" value="'.&mt('Reset Submissions').'" />
1.210 albertel 223: <nobr><input type="submit" name="changerandseed" value="'.&mt('Change Random Seed To:').'" />
1.175 albertel 224: <input type="text" name="rndseed" width="10" value="'.
225: $rndseed.'"
226: onChange="javascript:document.lonhomework.changerandseed.click()" /></nobr>
1.105 albertel 227: <input type="checkbox" name="showallfoils" ';
1.159 albertel 228: if (defined($ENV{'form.showallfoils'})) { $result.='checked="on"'; }
1.228 www 229: $result.= ' />'.&mt(' Show All Foils').
230: &Apache::loncommon::help_open_topic('Problem_Editor_Testing_Area','Testing Problems').
231: '<hr />';
1.235 albertel 232: $result.="
233: <nobr>
234: Problem Status:
235: <select name='problemstate'>
236: <option name=''></option>
237: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
238: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
239: ".&option('CANNOT_ANSWER_tries' ,'problemstate').&mt("Open with full tries")."</option>
240: ".&option('CANNOT_ANSWER_correct','problemstate').&mt("Open and correct")."</option>
241: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Answer")."</option>
242: </select>
243: </nobr>
244: <nobr>
245: Problem Type:
246: <select name='problemtype'>
247: <option name=''></option>
1.242 albertel 248: ".&option('exam' ,'problemtype').&mt("Exam Problem")."</option>
249: ".&option('problem','problemtype').&mt("Homework problem")."</option>
250: ".&option('survey' ,'problemtype').&mt("Survey Question")."</option>
1.235 albertel 251: </select>
252: </nobr>
253: <nobr>
254: Feedback Mode:
255: <select name='problemstatus'>
256: <option value=''></option>
1.242 albertel 257: ".&option('yes','problemstatus').&mt("Show Feedback")."</option>
258: ".&option('no', 'problemstatus').&mt("Don't Show Feedback")."</option>
1.235 albertel 259: </select>
260: </nobr>
1.242 albertel 261: <input type='submit' name='changeproblemmode' value='".&mt("Change")."' />
1.235 albertel 262: <hr />";
1.159 albertel 263: my $numtoanalyze=$ENV{'form.numtoanalyze'};
1.176 albertel 264: if (!$numtoanalyze) { $numtoanalyze=20; }
1.210 albertel 265: $result.= '<input type="submit" name="problemmode" value='.
266: &mt('"Calculate answers').'" /> for
1.136 albertel 267: <input type="text" name="numtoanalyze" value="'.
1.210 albertel 268: $numtoanalyze.'" size="5" /> '.&mt('versions of this problem').
269: '.'.&Apache::loncommon::help_open_topic("Analyze_Problem",
1.176 albertel 270: '',undef,undef,300).
1.210 albertel 271: '<hr />';
1.159 albertel 272: return $result;
1.48 albertel 273: }
274:
1.65 albertel 275: sub initialize_storage {
1.159 albertel 276: %Apache::lonhomework::results=();
1.162 albertel 277: %Apache::lonhomework::history=();
1.159 albertel 278: my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser();
1.162 albertel 279: if ($ENV{'request.state'} eq 'construct' || $symb eq '') {
1.159 albertel 280: %Apache::lonhomework::history=
281: &Apache::lonnet::tmprestore($ENV{'request.uri'},'',$domain,$name);
282: my ($temp)=keys %Apache::lonhomework::history ;
283: &Apache::lonxml::debug("Return message of $temp");
284: } else {
285: %Apache::lonhomework::history=
286: &Apache::lonnet::restore($symb,$courseid,$domain,$name);
287: }
288: #ignore error conditions
1.67 albertel 289: my ($temp)=keys %Apache::lonhomework::history ;
1.159 albertel 290: if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); }
1.65 albertel 291: }
292:
293: # -------------------------------------------------------------finalize_storage
294: # Stores away the result has to a student's environment
295: # checks form.grade_ for specific values, other wises stores
296: # to the running users environment
297: sub finalize_storage {
1.159 albertel 298: my $result;
299: my ($temp) = keys %Apache::lonhomework::results;
300: if ( $temp ne '' ) {
301: my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser();
1.162 albertel 302: if ($ENV{'request.state'} eq 'construct' || $symb eq '') {
303: $Apache::lonhomework::results{'rndseed'}=$ENV{'form.rndseed'};
1.159 albertel 304: $result=&Apache::lonnet::tmpstore(\%Apache::lonhomework::results,
305: $ENV{'request.uri'},'',$domain,$name);
306: &Apache::lonxml::debug('Construct Store return message:'.$result);
307: } else {
308: $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,
309: $symb,$courseid,$domain,$name);
310: &Apache::lonxml::debug('Store return message:'.$result);
311: }
1.67 albertel 312: }
1.159 albertel 313: return $result;
1.65 albertel 314: }
315:
316: sub checkout_msg {
1.211 albertel 317: my %lt=&Apache::lonlocal::texthash(
318: 'resource'=>'The resource needs to be checked out',
319: 'id_expln'=>'As a resource gets checked out, a unique timestamped ID is given to it, and a permanent record is left in the system.',
320: 'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',
321: 'checkout'=>'Check out Exam for Viewing',
322: 'checkout?'=>'Check out Exam?');
1.159 albertel 323: return (<<ENDCHECKOUT);
1.211 albertel 324: <h2>$lt{'resource'}</h2>
325: <p>$lt{'id_expln'}</p>
326: <font color="red">
327: <p>$lt{'warning'}</p>
1.91 albertel 328: </font>
329: <form name="checkout" method="POST" action="$ENV{'request.uri'}">
330: <input type="hidden" name="doescheckout" value="yes" />
1.211 albertel 331: <input type="button" name="checkoutbutton" value="$lt{'checkout'}" onClick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />
1.65 albertel 332: </form>
333: ENDCHECKOUT
334: }
335:
1.252 albertel 336: sub firstaccess_msg {
1.253 albertel 337: my ($time,$symb)=@_;
338: my ($map)=&Apache::lonnet::decode_symb($symb);
339: my $foldertitle=&Apache::lonnet::gettitle($map);
340: &Apache::lonxml::debug("map is $map title is $foldertitle");
1.252 albertel 341: return (<<ENDCHECKOUT);
1.253 albertel 342: <h2>The resources in "$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 343: <form name="markaccess" method="POST" action="$ENV{'request.uri'}">
344: <input type="hidden" name="markaccess" value="yes" />
345: <input type="button" name="accessbutton" value="Show Resource" onClick="javascript:if (confirm('Start Timer?')) { document.markaccess.submit(); }" />
346: </form>
347: ENDCHECKOUT
348: }
349:
1.204 albertel 350: sub init_problem_globals {
351: my ($type)=@_;
352: #initialize globals
353: if ($type eq 'problem') {
354: $Apache::inputtags::part='0';
355: @Apache::inputtags::partlist=('0');
1.260.2.4! albertel 356: $Apache::lonhomework::problemstatus=&get_problem_status('0');
! 357: $Apache::lonhomework::ignore_response_errors=0;
! 358: } elsif ($type eq 'library') {
1.204 albertel 359: $Apache::inputtags::part='';
360: @Apache::inputtags::partlist=();
361: $Apache::lonhomework::problemstatus='';
1.260.2.4! albertel 362: $Apache::lonhomework::ignore_response_errors=1;
1.204 albertel 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') {
649: $result.=&Apache::lonxml::xmlend();
650: $result=~s/<\/html>//;
651: }
1.174 sakharuk 652: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.159 albertel 653: if (not $ENV{'request.symb'} =~ m/\.page_/) {
1.178 sakharuk 654: $result .= $endminipage.'\end{document} ';
1.159 albertel 655: } else {
656: $result .= '';
657: }
658: }
659: }
660: if ($target eq 'grade') {
661: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
662: &finalize_storage();
663: }
1.172 albertel 664: if ($target eq 'answer' && ($ENV{'request.state'} eq 'construct')
1.173 albertel 665: && $ENV{'form.answer_output_mode'} ne 'tex') {
1.172 albertel 666: $result.='</html>'; # normally we get it from xmlend, but in CSTR
667: # we always show answer mode too.
1.159 albertel 668: }
669: } elsif ($target eq 'meta') {
670: if ($Apache::inputtags::part eq '0') {
1.179 albertel 671: @Apache::inputtags::response=();
1.159 albertel 672: $result=&Apache::response::mandatory_part_meta;
673: }
1.215 albertel 674: $result.=&Apache::response::meta_part_order();
1.258 albertel 675: $result.=&Apache::response::meta_response_order();
1.159 albertel 676: } elsif ($target eq 'edit') {
677: &Apache::lonxml::debug("in end_problem with $target, edit");
678: $result = &problem_edit_footer();
679: }
1.155 albertel 680:
1.177 albertel 681: if ($ENV{'request.state'} eq 'construct' && $target eq 'web') {
682: &Apache::inputtags::check_for_duplicate_ids();
683: }
1.204 albertel 684:
685: &reset_problem_globals('problem');
1.159 albertel 686:
687: return $result;
1.48 albertel 688: }
689:
1.108 albertel 690:
1.48 albertel 691: sub start_library {
1.159 albertel 692: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
693: my ($result,$head_tag_start,$body_tag_start,$form_tag_start);
1.244 albertel 694: if ($$tagstack[0] eq 'library') {
695: &init_problem_globals('library');
696: $Apache::lonhomework::type='problem';
697: }
1.159 albertel 698: if ($target eq 'edit') {
699: ($result,$head_tag_start,$body_tag_start,$form_tag_start)=
700: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
701: $result.=$head_tag_start."</head>".$body_tag_start.$form_tag_start.
702: &problem_edit_header();
703: my $temp=&Apache::edit::insertlist($target,$token);
704: $result.=$temp;
705: } elsif ($target eq 'modified') {
706: $result=$token->[4];
707: $result.=&Apache::edit::handle_insert();
708: } elsif ($target eq 'web' && $$tagstack[0] ne 'problem' &&
709: $ENV{'request.state'} eq "construct" ) {
710: ($result,$head_tag_start,$body_tag_start,$form_tag_start)=
711: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
712: my $name=&get_resource_name($parstack,$safeeval);
713: my $rndseed=&setup_rndseed($safeeval);
714: $result.="$head_tag_start<title>$name</title></head>
1.105 albertel 715: $body_tag_start \n $form_tag_start".
1.159 albertel 716: '<input type="hidden" name="submitted" value="yes" />';
717: $result.=&problem_web_to_edit_header($rndseed);
718: }
719: return $result;
1.48 albertel 720: }
721:
722: sub end_library {
1.159 albertel 723: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
724: my $result='';
725: if ($target eq 'edit') {
726: $result=&problem_edit_footer();
727: } elsif ($target eq 'web' && $$tagstack[0] ne 'problem' &&
728: $ENV{'request.state'} eq "construct") {
729: $result.='</form></body>'.&Apache::lonxml::xmlend();
730: }
1.204 albertel 731: if ($$tagstack[0] eq 'library') { &reset_problem_globals('library') };
1.159 albertel 732: return $result;
1.197 www 733: }
734:
735: sub start_definetag {
736: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
737:
738: my $result;
739:
740: my $name = $token->[2]->{'name'};
741: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser);
742: if ($name=~/^\//) {
743: $result=
744: '<br /><table bgcolor="#FFBBBB"><tr><th>END <tt>'.$name.'</tt></th></tr>';
745: } else {
746: $result=
747: '<br /><table bgcolor="#BBFFBB"><tr><th>BEGIN <tt>'.$name.'</tt></th></tr>';
748: }
749: $skip=~s/\</\<\;/gs;
750: $skip=~s/\>/\>\;/gs;
751: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
752: return $result;
753: }
754:
755: sub end_definetag {
756: return '';
1.1 albertel 757: }
758:
759: sub start_block {
1.201 albertel 760: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 761:
762: my $result;
1.1 albertel 763:
1.160 albertel 764: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.131 albertel 765: $target eq 'tex' || $target eq 'analyze') {
1.159 albertel 766: my $code = $token->[2]->{'condition'};
1.201 albertel 767: if (defined($code)) {
1.137 albertel 768: if (!$Apache::lonxml::default_homework_loaded) {
769: &Apache::lonxml::default_homework_load($safeeval);
770: }
1.131 albertel 771: $result = &Apache::run::run($code,$safeeval);
772: &Apache::lonxml::debug("block :$code: returned :$result:");
773: } else {
774: $result='1';
775: }
776: if ( ! $result ) {
1.201 albertel 777: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 778: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
779: }
780: $result='';
781: } elsif ($target eq 'edit') {
782: $result .=&Apache::edit::tag_start($target,$token);
783: $result .=&Apache::edit::text_arg('Test Condition:','condition',
784: $token,40);
785: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
786: } elsif ($target eq 'modified') {
787: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
788: $safeeval,'condition');
789: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 790: }
1.131 albertel 791: return $result;
1.1 albertel 792: }
793:
794: sub end_block {
1.167 www 795: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
796: my $result;
797: if ($target eq "edit") {
798: $result.= &Apache::edit::tag_end($target,$token,'');
799: }
800: return $result;
801: }
802:
803: sub start_languageblock {
1.201 albertel 804: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 805:
806: my $result;
807:
808: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
809: $target eq 'tex' || $target eq 'analyze') {
1.201 albertel 810: my $include = $token->[2]->{'include'};
811: my $exclude = $token->[2]->{'exclude'};
812: my %languages=&Apache::loncommon::display_languages();
813: $result='1';
814: if ($include) {
815: $result='';
816: foreach (split(/\,/,$include)) {
817: if ($languages{$_}) { $result='1'; }
818: }
819: }
820: if ($exclude) {
821: foreach (split(/\,/,$exclude)) {
822: if ($languages{$_}) { $result='0'; }
823: }
824: }
825: if ( ! $result ) {
826: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
827: $style);
828: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
829: }
830: $result='';
1.167 www 831: } elsif ($target eq 'edit') {
832: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 833: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 834: $token,40);
1.211 albertel 835: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 836: $token,40);
837: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
838: } elsif ($target eq 'modified') {
839: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 840: $safeeval,'include',
841: 'exclude');
1.167 www 842: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
843: }
844: return $result;
845: }
846:
847: sub end_languageblock {
1.170 www 848: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
849: my $result;
1.201 albertel 850: if ($target eq "edit") {
1.170 www 851: $result.= &Apache::edit::tag_end($target,$token,'');
852: }
853: return $result;
854: }
855:
856: sub start_instructorcomment {
1.201 albertel 857: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 858:
859: my $result;
860:
861: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
862: $target eq 'tex' || $target eq 'analyze') {
863: $result=($ENV{'request.role'}=~/^(in|cc|au|ca|li)/);
864: if ( ! $result ) {
1.201 albertel 865: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
866: $parser,$style);
1.170 www 867: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
868: }
869: $result='';
870: } elsif ($target eq 'edit') {
871: $result .=&Apache::edit::tag_start($target,$token);
872: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
873: }
874: return $result;
875: }
876:
877: sub end_instructorcomment {
1.159 albertel 878: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 879: my $result;
880: if ($target eq "edit") {
881: $result.= &Apache::edit::tag_end($target,$token,'');
882: }
883: return $result;
1.4 tsai 884: }
885:
886: sub start_while {
1.159 albertel 887: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
888:
1.160 albertel 889: my $result;
1.161 albertel 890: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.160 albertel 891: $target eq 'tex' || $target eq 'analyze') {
892: my $code = $token->[2]->{'condition'};
1.4 tsai 893:
1.160 albertel 894: push( @Apache::structuretags::whileconds, $code);
895: if (!$Apache::lonxml::default_homework_loaded) {
896: &Apache::lonxml::default_homework_load($safeeval);
897: }
898: my $result = &Apache::run::run($code,$safeeval);
1.161 albertel 899: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser);
1.160 albertel 900: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 901: push( @Apache::structuretags::whileline, $token->[5]);
902: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 903: if ( $result ) {
904: &Apache::lonxml::newparser($parser,\$bodytext);
905: }
906: } elsif ($target eq 'edit') {
907: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 908: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 909: $token,40);
910: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
911: } elsif ($target eq 'modified') {
912: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
913: $safeeval,'condition');
914: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 915: }
1.160 albertel 916: return $result;
1.4 tsai 917: }
918:
919: sub end_while {
1.159 albertel 920: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 921: my $result;
922:
923: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
924: $target eq 'tex' || $target eq 'analyze') {
925: my $code = pop(@Apache::structuretags::whileconds);
926: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 927: my $line = pop(@Apache::structuretags::whileline);
928: my $return = &Apache::run::run($code,$safeeval);
929: my $starttime=time;
930: my $error=0;
931: while ($return) {
932: if (time-$starttime >
933: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
934: $return = 0; $error=1; next;
935: }
936: $result.=&Apache::scripttag::xmlparse($bodytext);
937: $return = &Apache::run::run($code,$safeeval);
938: }
939: if ($error) {
1.211 albertel 940: &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 941: }
942: } elsif ($target eq "edit") {
943: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 944: }
1.160 albertel 945: return $result;
1.1 albertel 946: }
1.6 tsai 947:
1.160 albertel 948: # <randomlist show="1">
1.6 tsai 949: # <tag1>..</tag1>
950: # <tag2>..</tag2>
951: # <tag3>..</tag3>
1.160 albertel 952: # ...
1.6 tsai 953: # </randomlist>
954: sub start_randomlist {
1.159 albertel 955: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
956: my $result;
957: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
958: $target eq 'tex' || $target eq 'analyze') {
959: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
960: my $b_parser= HTML::TokeParser->new(\$body);
961: my $b_tok;
962: my @randomlist;
963: my $list_item;
964: while($b_tok = $b_parser->get_token() ) {
965: if($b_tok->[0] eq 'S') { # start tag
966: # get content of the tag until matching end tag
967: # get all text upto the matching tag
968: # and push the content into @randomlist
969: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
970: $b_parser);
971: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
972: push(@randomlist,$list_item);
973: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
974: # $list_item</b>";
975: }
976: if($b_tok->[0] eq 'T') { # text
977: # what to do with text in between tags?
978: # print "<b>TEXT $b_tok->[1]</b><br />";
979: }
980: # if($b_tok->[0] eq 'E') { # end tag, should not happen
981: # print "<b>END-TAG $b_tok->[1]</b><br />";
982: # }
983: }
984: my @idx_arr = (0 .. $#randomlist);
985: &Apache::structuretags::shuffle(\@idx_arr);
986: my $bodytext = '';
987: my $show=$#randomlist;
988: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
989: $showarg--;
990: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
991: for(0 .. $show) {
992: $bodytext .= "$randomlist[ $idx_arr[$_] ]";
993: }
994: &Apache::lonxml::newparser($parser,\$bodytext);
995: } elsif ($target eq 'edit' ) {
996: $result .=&Apache::edit::tag_start($target,$token);
997: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
998: $token,5);
999: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1000: } elsif ($target eq 'modified' ) {
1001: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1002: $safeeval,'show');
1003: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1004: }
1005: return $result;
1.7 tsai 1006: }
1007:
1008: sub shuffle {
1009: my $a=shift;
1010: my $i;
1.70 albertel 1011: if (defined(@$a)) {
1.251 albertel 1012: &Apache::response::pushrandomnumber();
1.159 albertel 1013: for($i=@$a;--$i;) {
1014: my $j=int(&Math::Random::random_uniform() * ($i+1));
1015: next if $i == $j;
1016: @$a[$i,$j] = @$a[$j,$i];
1017: }
1.251 albertel 1018: &Apache::response::poprandomnumber();
1.7 tsai 1019: }
1.6 tsai 1020: }
1021:
1022: sub end_randomlist {
1.159 albertel 1023: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1024: my $result;
1025: if ($target eq 'edit' ) {
1026: $result=&Apache::edit::tag_end($target,$token,
1027: 'End Randomly Parsed Block');
1028: }
1029: return $result;
1.6 tsai 1030: }
1031:
1.11 albertel 1032: sub start_part {
1.159 albertel 1033: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1034: my $result='';
1035: my $id= &Apache::lonxml::get_param('id',$parstack,$safeeval);
1036: if ($id eq '') { $id = $Apache::lonxml::curdepth; }
1037: $Apache::inputtags::part=$id;
1.177 albertel 1038: push(@Apache::inputtags::partlist,$id);
1039: @Apache::inputtags::response=();
1.159 albertel 1040: @Apache::inputtags::previous=();
1041: @Apache::inputtags::previous_version=();
1.241 albertel 1042: $Apache::lonhomework::problemstatus=&get_problem_status($id);
1.159 albertel 1043: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 1044: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
1045: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1046:
1.214 albertel 1047: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 1048: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 1049: &Apache::run::run($expression,$safeeval);
1.159 albertel 1050:
1051: if ($target eq 'meta') {
1.224 www 1052: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
1053: return &Apache::response::mandatory_part_meta.
1054: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 1055: } elsif ($target eq 'web' || $target eq 'grade' ||
1056: $target eq 'answer' || $target eq 'tex') {
1057: if ($hidden) {
1058: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser);
1059: } else {
1060: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
1061: push (@Apache::inputtags::status,$status);
1062: my $expression='$external::datestatus="'.$status.'";';
1063: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
1064: &Apache::run::run($expression,$safeeval);
1.240 albertel 1065: if ($ENV{'request.state'} eq 'construct') {
1.241 albertel 1066: &set_problem_state($Apache::inputtags::part);
1.240 albertel 1067: }
1.216 albertel 1068: if (( $status eq 'CLOSED' ) ||
1069: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1070: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 1071: ( $status eq 'BANNED') ||
1072: ( $status eq 'UNAVAILABLE') ||
1073: ( $status eq 'INVALID_ACCESS')) {
1.159 albertel 1074: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser);
1075: if ( $target eq "web" ) {
1.211 albertel 1076: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 1077: } elsif ( $target eq 'tex' ) {
1.195 sakharuk 1078: if (not $ENV{'form.problem_split'}=~/yes/) {
1.211 albertel 1079: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 1080: } else {
1.211 albertel 1081: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 1082: }
1.159 albertel 1083: }
1084: } else {
1085: if ($target eq 'tex') {
1.195 sakharuk 1086: if (not $ENV{'form.problem_split'}=~/yes/) {
1.260.2.1 albertel 1087: if ($$tagstack[-2] eq 'td') {
1088: $result.='\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1089: } else {
1090: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1091: }
1.195 sakharuk 1092: }
1.159 albertel 1093: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.230 albertel 1094: my $allkeys=&Apache::lonnet::metadata($ENV{'request.uri'},'packages');
1.222 sakharuk 1095: my @allkeys = split /,/,$allkeys;
1096: my $allow_print_points = 0;
1097: foreach my $partial_key (@allkeys) {
1.230 albertel 1098: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 1099: if ($1 ne '0') {$allow_print_points=1;}
1100: }
1101: }
1102: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
1.233 www 1103: } elsif ($target eq 'web') {
1104: $result.='<a name="'.&Apache::lonnet::escape($Apache::inputtags::part).'" />';
1.159 albertel 1105: }
1106: }
1107: }
1108: } elsif ($target eq 'edit') {
1109: $result.=&Apache::edit::tag_start($target,$token);
1110: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
1111: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 1112: ' '.
1113: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 1114: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
1115: } elsif ($target eq 'modified') {
1116: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 1117: $safeeval,'id','display');
1.159 albertel 1118: if ($constructtag) {
1.225 albertel 1119: #limiting ids to only letters numbers, and space
1.224 www 1120: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 1121: $result = &Apache::edit::rebuild_tag($token);
1122: $result.=&Apache::edit::handle_insert();
1123: }
1124: }
1125: return $result;
1.11 albertel 1126: }
1127:
1128: sub end_part {
1.159 albertel 1129: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1130: &Apache::lonxml::debug("in end_part $target ");
1131: my $status=$Apache::inputtags::status['-1'];
1132: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1133: my $result='';
1134: if ( $target eq 'meta' ) {
1135: $result='';
1.249 albertel 1136: } elsif ($target eq 'grade') {
1137: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1138: !$hidden) {
1139: $result=&Apache::inputtags::grade;
1140: } else {
1141: # move any submission data to .hidden
1142: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1143: }
1.159 albertel 1144: } elsif (($target eq 'web' || $target eq 'tex') && !$hidden ) {
1145: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
1146: $target);
1.212 albertel 1147: if ($Apache::lonhomework::type eq 'exam' && $target eq 'tex') {
1148: $gradestatus='';
1149: }
1.159 albertel 1150: $result=$gradestatus;
1.260.2.3 albertel 1151: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 1152: } elsif ($target eq 'edit') {
1153: $result=&Apache::edit::end_table();
1.159 albertel 1154: }
1155: pop @Apache::inputtags::status;
1156: $Apache::inputtags::part='';
1157: return $result;
1.11 albertel 1158: }
1.1 albertel 1159:
1.25 albertel 1160: sub start_preduedate {
1.159 albertel 1161: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1162: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' || $target eq 'tex') {
1.236 albertel 1163: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.159 albertel 1164: if ($Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 1165: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
1166: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.159 albertel 1167: &Apache::lonxml::get_all_text("/preduedate",$parser);
1168: }
1.24 albertel 1169: }
1.159 albertel 1170: return '';
1.24 albertel 1171: }
1172:
1.25 albertel 1173: sub end_preduedate {
1.159 albertel 1174: return '';
1.24 albertel 1175: }
1176:
1.25 albertel 1177: sub start_postanswerdate {
1.159 albertel 1178: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.234 albertel 1179: if ($target eq 'web' || $target eq 'grade') {
1.159 albertel 1180: if ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER') {
1181: &Apache::lonxml::get_all_text("/postanswerdate",$parser);
1182: }
1183: } elsif ($target eq 'tex') {
1.234 albertel 1184: &Apache::lonxml::get_all_text("/postanswerdate",$parser);
1.159 albertel 1185: }
1186: return '';
1.24 albertel 1187: }
1188:
1.25 albertel 1189: sub end_postanswerdate {
1.159 albertel 1190: return '';
1.24 albertel 1191: }
1192:
1.25 albertel 1193: sub start_notsolved {
1.159 albertel 1194: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1195: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1196: $target eq 'tex') {
1197: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1198: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 1199: if ($gradestatus =~ /^correct/ &&
1200: &Apache::response::show_answer()) {
1.159 albertel 1201: &Apache::lonxml::debug("skipping");
1202: &Apache::lonxml::get_all_text("/notsolved",$parser);
1203: }
1.24 albertel 1204: }
1.159 albertel 1205: return '';
1.24 albertel 1206: }
1207:
1.25 albertel 1208: sub end_notsolved {
1.159 albertel 1209: return '';
1.24 albertel 1210: }
1211:
1212: sub start_solved {
1.159 albertel 1213: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1214: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1215: $target eq 'tex') {
1216: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 1217: if ($gradestatus !~ /^correct/ ||
1218: !&Apache::response::show_answer()) {
1.159 albertel 1219: &Apache::lonxml::get_all_text("/solved",$parser);
1220: }
1.24 albertel 1221: }
1.159 albertel 1222: return '';
1.24 albertel 1223: }
1224:
1225: sub end_solved {
1.248 albertel 1226: return '';
1227: }
1228:
1229: sub start_problemtype {
1230: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1231: my $result;
1232: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1233: $target eq 'tex' || $target eq 'analyze') {
1234: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
1235: if (!defined($mode)) { $mode='show'; }
1236: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
1237: my $found=0;
1238: foreach my $type (split(',',$for)) {
1239: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
1240: }
1241: if ($mode eq 'show' && !$found) {
1242: &Apache::lonxml::get_all_text("/problemtype",$parser);
1243: }
1244: if ($mode eq 'hide' && $found) {
1245: &Apache::lonxml::get_all_text("/problemtype",$parser);
1246: }
1247: } elsif ($target eq 'edit') {
1248: $result .=&Apache::edit::tag_start($target,$token);
1249: $result.=&Apache::edit::select_arg('Mode:','mode',
1250: [['show','Show'],
1251: ['hide','Hide']]
1252: ,$token);
1253: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
1254: [ ['exam','Exam/Quiz Problem'],
1255: ['survey','Survey'],
1256: ['problem','Homework Problem'] ]
1257: ,$token);
1258: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1259: } elsif ($target eq 'modified') {
1260: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1261: $safeeval,'mode','for');
1262: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1263: }
1264: return $result;
1265: }
1266:
1267: sub end_problemtype {
1.159 albertel 1268: return '';
1.24 albertel 1269: }
1.34 albertel 1270:
1271: sub start_startouttext {
1.159 albertel 1272: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1273: my @result=(''.'');
1274: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1275: return (@result);
1.34 albertel 1276: }
1.159 albertel 1277:
1.34 albertel 1278: sub end_startouttext {
1.159 albertel 1279: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1280: my $result='';
1281: my $text='';
1282:
1283: if ($target eq 'edit') {
1284: $text=&Apache::lonxml::get_all_text("endouttext",$parser);
1.211 albertel 1285: $result.=&Apache::edit::start_table($token)."<tr><td>".&mt('Text Block')."</td>
1286: <td>".&mt('Delete:').
1.159 albertel 1287: &Apache::edit::deletelist($target,$token)
1288: ."</td>
1.42 albertel 1289: <td>".
1.159 albertel 1290: &Apache::edit::insertlist($target,$token).
1291: &Apache::edit::end_row().
1292: &Apache::edit::start_spanning_row()."\n"
1.188 bowersj2 1293: . &Apache::loncommon::helpLatexCheatsheet () .
1.255 www 1294: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 1295: }
1296: if ($target eq 'modified') {
1.219 albertel 1297: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 1298: }
1299: if ($target eq 'tex') {
1300: $result .= '\noindent ';
1301: }
1302: return $result;
1.34 albertel 1303: }
1.159 albertel 1304:
1.34 albertel 1305: sub start_endouttext {
1.159 albertel 1306: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1307: my $result='';
1308: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
1309: if ($target eq "modified") {
1310: $result='<endouttext />'.
1311: &Apache::edit::handle_insertafter('startouttext'); }
1312: return $result;
1.34 albertel 1313: }
1.159 albertel 1314:
1.34 albertel 1315: sub end_endouttext {
1.159 albertel 1316: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1317: my @result=('','');
1318: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
1319: return (@result);
1.34 albertel 1320: }
1.159 albertel 1321:
1.45 albertel 1322: sub delete_startouttext {
1.159 albertel 1323: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1324: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser);
1325: my $text=$$parser['-1']->get_text("/endouttext");
1326: my $ntoken=$$parser['-1']->get_token();
1327: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
1328: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
1329: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
1330: # they did the last time round
1331: &Apache::lonxml::increasedepth($ntoken);
1332: &Apache::lonxml::decreasedepth($ntoken);
1333: return 1;
1.193 www 1334: }
1335:
1336: sub start_simpleeditbutton {
1337: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1338: my $result='';
1339: if (($target eq 'web') &&
1340: (&Apache::lonnet::allowed('srm',$ENV{'request.course.id'}))) {
1.220 www 1341: my $url=$ENV{'request.noversionuri'};
1.193 www 1342: $url=~s/\?.*$//;
1.194 www 1343: $result='<table width="100%" bgcolor="#FFFFAA" border="2"><tr><td>'.
1.211 albertel 1344: '<a href="'.$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 1345: &Apache::loncommon::help_open_topic('Caching').'</td></tr></table><br />';
1.193 www 1346: }
1347: return $result;
1348: }
1349:
1350: sub end_simpleeditbutton {
1351: return '';
1.45 albertel 1352: }
1.34 albertel 1353:
1.1 albertel 1354: 1;
1355: __END__
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