Annotation of loncom/homework/structuretags.pm, revision 1.236
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.236 ! albertel 4: # $Id: structuretags.pm,v 1.235 2004/02/13 23:59:24 albertel Exp $
1.74 albertel 5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
14: #
15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
27: #
1.33 albertel 28: # 2/19 Guy
1.44 ng 29: # 6/26/2001 fixed extra web display at end of <web></web> tags
1.60 www 30: # 8/17,8/18,8/20 Gerd Kortemeyer
1.54 www 31:
1.133 sakharuk 32:
1.1 albertel 33: package Apache::structuretags;
34:
35: use strict;
36: use Apache::lonnet;
1.101 sakharuk 37: use Apache::File();
1.147 www 38: use Apache::lonmenu;
1.210 albertel 39: use Apache::lonlocal;
1.231 sakharuk 40: use Apache::lonxml;
1.1 albertel 41:
1.78 harris41 42: BEGIN {
1.193 www 43: &Apache::lonxml::register('Apache::structuretags',('block','languageblock','instructorcomment','while','randomlist','problem','library','web','tex','part','preduedate','postanswerdate','solved','notsolved','startouttext','endouttext',
1.197 www 44: 'simpleeditbutton','definetag'));
1.10 albertel 45: }
46:
47: sub start_web {
1.159 albertel 48: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.200 albertel 49: my $bodytext=&Apache::lonxml::get_all_text("/web",$parser);
50: if ($target eq 'web') {
51: return $bodytext;
1.159 albertel 52: }
53: return '';
1.10 albertel 54: }
55:
56: sub end_web {
1.44 ng 57: return '';
1.10 albertel 58: }
59:
60: sub start_tex {
1.159 albertel 61: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.198 sakharuk 62: my $result='';
1.200 albertel 63: my $bodytext=&Apache::lonxml::get_all_text("/tex",$parser);
64: if ($target eq 'tex') {
65: return $bodytext.' ';
1.159 albertel 66: }
1.198 sakharuk 67: return $result;;
1.10 albertel 68: }
69:
70: sub end_tex {
1.44 ng 71: return '';
1.9 albertel 72: }
73:
1.48 albertel 74: sub page_start {
1.159 albertel 75: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
76: my %found;
1.207 albertel 77: foreach my $taginside (@$tagstack) {
1.159 albertel 78: foreach my $taglookedfor ('html','body','form') {
79: if ($taginside =~ /^$taglookedfor$/i) {$found{$taglookedfor} = 1;}
80: }
81: }
82:
83: my $result;
84: my $head_tag_start;
85: if (!defined($found{'html'})) {
86: $result=&Apache::londefdef::start_html($target,$token,$tagstack,
87: $parstack,$parser,$safeeval);
1.218 albertel 88: $head_tag_start='<head>'.&Apache::lonmenu::registerurl(undef,$target);
1.159 albertel 89: }
90: my $body_tag_start;
91: if (!defined($found{'body'})) {
92: $body_tag_start='<body onLoad="'.&Apache::lonmenu::loadevents().'" '.
93: 'onUnload="'.&Apache::lonmenu::unloadevents().'" ';
94: my $background=&Apache::lonxml::get_param('background',$parstack,
95: $safeeval);
1.199 www 96: if ($ENV{'browser.imagesuppress'} eq 'on') { $background=''; }
1.159 albertel 97: if ($background) {
98: $Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=
99: $background;
100: $body_tag_start.='background="'.$background.'" ';
101: } else {
102: my $bgcolor=&Apache::lonxml::get_param('bgcolor',$parstack,
103: $safeeval);
1.199 www 104: if (($bgcolor) && ($ENV{'browser.blackwhite'} ne 'on')) {
1.159 albertel 105: $body_tag_start.='bgcolor="'.$bgcolor.'" ';
106: } else {
107: $body_tag_start.='bgcolor="#ffffff"';
108: }
1.199 www 109: }
110: if ($ENV{'browser.fontenhance'} eq 'on') {
111: $body_tag_start.=' style="font-size: x-large;" ';
1.159 albertel 112: }
113: $body_tag_start.='>'.&Apache::lonmenu::menubuttons(undef,$target,1);
114: if ($target eq 'web' && $ENV{'request.state'} ne 'construct') {
1.165 albertel 115: my ($symb,undef,undef,undef,$publicuser)=
116: &Apache::lonxml::whichuser();
117: if ($symb eq '' && !$publicuser) {
1.159 albertel 118: my $help = &Apache::loncommon::help_open_topic("Ambiguous_Reference");
1.211 albertel 119: $help=&mt("Browsing resource, all submissions are temporary.")."<br />";
1.159 albertel 120: $body_tag_start.=$help;
121: }
122: }
123: }
124: my $form_tag_start;
125: if (!defined($found{'form'})) {
126: $form_tag_start='<form name="lonhomework" method="POST" action="'.
127: $ENV{'request.uri'}.'">';
128: }
129: return ($result,$head_tag_start,$body_tag_start,$form_tag_start);
1.105 albertel 130: }
131:
1.141 matthew 132: #use Time::HiRes();
1.105 albertel 133: sub get_resource_name {
1.159 albertel 134: my ($parstack,$safeeval)=@_;
1.204 albertel 135: if (defined($Apache::lonhomework::name)) {
136: return $Apache::lonhomework::name;
137: }
1.159 albertel 138: my $name=&Apache::lonnet::gettitle();
139: if ($name eq '') {
140: $name=&Apache::lonnet::EXT('resource.title');
141: if ($name eq 'con_lost') { $name = ''; }
142: }
1.204 albertel 143: if ($name!~/\S+/) {
144: $name=$ENV{'request.uri'};
1.205 albertel 145: $name=~s-.*/([^/]+)$-$1-;
1.204 albertel 146: }
1.159 albertel 147: $Apache::lonhomework::name=$name;
148: return $name;
1.105 albertel 149: }
150:
151: sub setup_rndseed {
1.159 albertel 152: my ($safeeval)=@_;
153: my $rndseed;
1.162 albertel 154: my ($symb)=&Apache::lonxml::whichuser();
155: if ($ENV{'request.state'} eq "construct" || $symb eq '') {
1.159 albertel 156: $rndseed=$ENV{'form.rndseed'};
157: if (!$rndseed) {
1.162 albertel 158: $rndseed=$Apache::lonhomework::history{'rndseed'};
159: if (!$rndseed) {
160: $rndseed=time;
161: $ENV{'form.rndseed'}=$rndseed;
162: }
163: }
1.210 albertel 164: if ($ENV{'form.resetdata'} eq &mt('New Problem Variation') ||
165: $ENV{'form.newrandomization'} eq &mt('New Randomization')) {
1.190 albertel 166: srand(time);
167: $rndseed=int(rand(2100000000));
1.159 albertel 168: $ENV{'form.rndseed'}=$rndseed;
1.180 albertel 169: delete($ENV{'form.resetdata'});
170: delete($ENV{'form.newrandomization'});
1.159 albertel 171: }
1.187 albertel 172: if (defined($rndseed) && $rndseed ne int($rndseed)) {
173: $rndseed=join(',',&Math::Random::random_seed_from_phrase($rndseed));
174: }
1.221 albertel 175: if ($safeeval) {
176: &Apache::lonxml::debug("Setting rndseed to $rndseed");
177: &Apache::run::run('$external::randomseed='.$rndseed.';',$safeeval);
178: }
1.159 albertel 179: }
180: return $rndseed;
1.105 albertel 181: }
182:
183: sub problem_edit_header {
1.159 albertel 184: return '<input type="hidden" name="submitted" value="edit" />
1.210 albertel 185: <input type="hidden" name="problemmode" value="'.&mt('Edit').'" />
186: <input type="submit" name="problemmode" value="'.&mt('Discard Edits and View').'" />
187: <input type="submit" name="problemmode" value="'.&mt('EditXML').'" />
188: <input type="submit" name="Undo" value="'.&mt('undo').'" /> <hr />
189: <input type="submit" name="submit" value="'.&mt('Submit Changes and Edit').'" />
1.229 www 190: <input type="submit" name="submit" value="'.&mt('Submit Changes and View').'" /><table><tr><td>'.
191: &Apache::loncommon::help_open_topic('Problem_Editor_XML_Index',
192: 'Problem Editing Help').'</td><td>'.
193: &Apache::loncommon::help_open_faq(5).
194: &Apache::loncommon::help_open_bug('Authoring').'</td></tr></table>'.
1.228 www 195: '<table border="0"><tr><td bgcolor="#DDDDDD">';
1.105 albertel 196: }
197:
198: sub problem_edit_footer {
1.210 albertel 199: return '</td></tr></table><br /><input type="submit" name="submit" value="'.&mt('Submit Changes and Edit').'" />
200: <input type="submit" name="submit" value="'.&mt('Submit Changes and View').'" />';
1.105 albertel 201: }
202:
1.235 albertel 203: sub option {
204: my ($value,$name) = @_;
205: my $result ="<option value='".$value."' ";
206: if ($ENV{'form.'.$name} eq $value) {
207: $result.=" selected='on' ";
208: }
209: $result.='>';
210: return $result;
211: }
212:
1.105 albertel 213: sub problem_web_to_edit_header {
1.159 albertel 214: my ($rndseed)=@_;
1.210 albertel 215: my $result.='<input type="hidden" name="problemmode" value="'.&mt('View').'" />
216: <input type="submit" name="problemmode" value="'.&mt('Edit').'" />
217: <input type="submit" name="problemmode" value="'.&mt('EditXML').'" />
218: <input type="submit" name="newrandomization" value="'.&mt('New Randomization').'" />
219: <input type="submit" name="resetdata" value="'.&mt('Reset Submissions').'" />
220: <nobr><input type="submit" name="changerandseed" value="'.&mt('Change Random Seed To:').'" />
1.175 albertel 221: <input type="text" name="rndseed" width="10" value="'.
222: $rndseed.'"
223: onChange="javascript:document.lonhomework.changerandseed.click()" /></nobr>
1.105 albertel 224: <input type="checkbox" name="showallfoils" ';
1.159 albertel 225: if (defined($ENV{'form.showallfoils'})) { $result.='checked="on"'; }
1.228 www 226: $result.= ' />'.&mt(' Show All Foils').
227: &Apache::loncommon::help_open_topic('Problem_Editor_Testing_Area','Testing Problems').
228: '<hr />';
1.235 albertel 229: $result.="
230: <nobr>
231: Problem Status:
232: <select name='problemstate'>
233: <option name=''></option>
234: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
235: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
236: ".&option('CANNOT_ANSWER_tries' ,'problemstate').&mt("Open with full tries")."</option>
237: ".&option('CANNOT_ANSWER_correct','problemstate').&mt("Open and correct")."</option>
238: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Answer")."</option>
239: </select>
240: </nobr>
241: <nobr>
242: Problem Type:
243: <select name='problemtype'>
244: <option name=''></option>
245: ".&option('exam' ,'problemtype')."Exam Problem</option>
246: ".&option('problem','problemtype')."Homework problem</option>
247: ".&option('survey' ,'problemtype')."Survey Question</option>
248: </select>
249: </nobr>
250: <nobr>
251: Feedback Mode:
252: <select name='problemstatus'>
253: <option value=''></option>
254: ".&option('yes','problemstatus')."Show Feedback</option>
255: ".&option('no', 'problemstatus')."Don\'t Show Feedback</option>
256: </select>
257: <input type='submit' name='changeproblemmode' value='Change' />
258: </nobr>
259: <hr />";
1.159 albertel 260: my $numtoanalyze=$ENV{'form.numtoanalyze'};
1.176 albertel 261: if (!$numtoanalyze) { $numtoanalyze=20; }
1.210 albertel 262: $result.= '<input type="submit" name="problemmode" value='.
263: &mt('"Calculate answers').'" /> for
1.136 albertel 264: <input type="text" name="numtoanalyze" value="'.
1.210 albertel 265: $numtoanalyze.'" size="5" /> '.&mt('versions of this problem').
266: '.'.&Apache::loncommon::help_open_topic("Analyze_Problem",
1.176 albertel 267: '',undef,undef,300).
1.210 albertel 268: '<hr />';
1.159 albertel 269: return $result;
1.48 albertel 270: }
271:
1.65 albertel 272: sub initialize_storage {
1.159 albertel 273: %Apache::lonhomework::results=();
1.162 albertel 274: %Apache::lonhomework::history=();
1.159 albertel 275: my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser();
1.162 albertel 276: if ($ENV{'request.state'} eq 'construct' || $symb eq '') {
1.159 albertel 277: %Apache::lonhomework::history=
278: &Apache::lonnet::tmprestore($ENV{'request.uri'},'',$domain,$name);
279: my ($temp)=keys %Apache::lonhomework::history ;
280: &Apache::lonxml::debug("Return message of $temp");
281: } else {
282: %Apache::lonhomework::history=
283: &Apache::lonnet::restore($symb,$courseid,$domain,$name);
284: }
285: #ignore error conditions
1.67 albertel 286: my ($temp)=keys %Apache::lonhomework::history ;
1.159 albertel 287: if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); }
1.65 albertel 288: }
289:
290: # -------------------------------------------------------------finalize_storage
291: # Stores away the result has to a student's environment
292: # checks form.grade_ for specific values, other wises stores
293: # to the running users environment
294: sub finalize_storage {
1.159 albertel 295: my $result;
296: my ($temp) = keys %Apache::lonhomework::results;
297: if ( $temp ne '' ) {
298: my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser();
1.162 albertel 299: if ($ENV{'request.state'} eq 'construct' || $symb eq '') {
300: $Apache::lonhomework::results{'rndseed'}=$ENV{'form.rndseed'};
1.159 albertel 301: $result=&Apache::lonnet::tmpstore(\%Apache::lonhomework::results,
302: $ENV{'request.uri'},'',$domain,$name);
303: &Apache::lonxml::debug('Construct Store return message:'.$result);
304: } else {
305: $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,
306: $symb,$courseid,$domain,$name);
307: &Apache::lonxml::debug('Store return message:'.$result);
308: }
1.67 albertel 309: }
1.159 albertel 310: return $result;
1.65 albertel 311: }
312:
313: sub checkout_msg {
1.211 albertel 314: my %lt=&Apache::lonlocal::texthash(
315: 'resource'=>'The resource needs to be checked out',
316: 'id_expln'=>'As a resource gets checked out, a unique timestamped ID is given to it, and a permanent record is left in the system.',
317: 'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',
318: 'checkout'=>'Check out Exam for Viewing',
319: 'checkout?'=>'Check out Exam?');
1.159 albertel 320: return (<<ENDCHECKOUT);
1.211 albertel 321: <h2>$lt{'resource'}</h2>
322: <p>$lt{'id_expln'}</p>
323: <font color="red">
324: <p>$lt{'warning'}</p>
1.91 albertel 325: </font>
326: <form name="checkout" method="POST" action="$ENV{'request.uri'}">
327: <input type="hidden" name="doescheckout" value="yes" />
1.211 albertel 328: <input type="button" name="checkoutbutton" value="$lt{'checkout'}" onClick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />
1.65 albertel 329: </form>
330: ENDCHECKOUT
331: }
332:
1.204 albertel 333: sub init_problem_globals {
334: my ($type)=@_;
335: #initialize globals
336: if ($type eq 'problem') {
337: $Apache::inputtags::part='0';
338: @Apache::inputtags::partlist=('0');
339: $Apache::lonhomework::problemstatus=
340: &Apache::lonnet::EXT('resource.0.problemstatus');
1.235 albertel 341: &Apache::lonxml::debug("problem status is $Apache::lonhomework::problemstatus");
342: &Apache::lonxml::debug("env probstat is ".$ENV{'form.problemstatus'});
343: if ($ENV{'request.state'} eq 'construct' &&
344: defined($ENV{'form.problemstatus'})) {
345: $Apache::lonhomework::problemstatus=$ENV{'form.problemstatus'};
346: }
1.204 albertel 347: } else {
348: $Apache::inputtags::part='';
349: @Apache::inputtags::partlist=();
350: $Apache::lonhomework::problemstatus='';
351: }
352: @Apache::inputtags::responselist = ();
353: @Apache::inputtags::importlist = ();
354: @Apache::inputtags::previous=();
355: @Apache::inputtags::previous_version=();
356: $Apache::structuretags::printanswer='No';
357: @Apache::structuretags::whileconds=();
358: @Apache::structuretags::whilebody=();
359: @Apache::structuretags::whileline=();
360: $Apache::lonhomework::scantronmode=0;
361: undef($Apache::lonhomework::name);
362:
363: }
364:
365: sub reset_problem_globals {
366: my ($type)=@_;
367: undef(%Apache::lonhomework::history);
368: undef(%Apache::lonhomework::results);
369: undef($Apache::inputtags::part);
1.208 albertel 370: #don't undef this, lonhomework.pm takes care of this, we use this to
371: #detect if we try to do 2 problems in one file
372: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 373: undef($Apache::lonhomework::name);
374: }
375:
1.9 albertel 376: sub start_problem {
1.159 albertel 377: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.19 albertel 378:
1.184 albertel 379: if ( $Apache::inputtags::part ne '' ||
380: $Apache::lonhomework::parsing_a_problem) {
381: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
382: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser);
1.159 albertel 383: return '';
384: }
1.184 albertel 385:
386: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 387: &init_problem_globals('problem');
1.166 albertel 388:
389: if (defined($ENV{'scantron.maxquest'})) {
390: $Apache::lonhomework::scantronmode=1;
391: }
1.161 albertel 392:
1.159 albertel 393: if ($target ne 'analyze') {
394: &initialize_storage();
395: if ($target eq 'web') {
396: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
397: }
398: $Apache::lonhomework::type=&Apache::lonnet::EXT('resource.0.type');
399: &Apache::lonxml::debug("Found this to be of type :$Apache::lonhomework::type:");
400: }
1.164 albertel 401: if ($Apache::lonhomework::type eq '' ) {
1.159 albertel 402: my $uri=$ENV{'request.uri'};
403: if ($uri=~/\.(\w+)$/) {
404: $Apache::lonhomework::type=$1;
405: &Apache::lonxml::debug("Using type of $1");
406: } else {
407: $Apache::lonhomework::type='problem';
408: &Apache::lonxml::debug("Using default type, problem, :$uri:");
409: }
1.87 albertel 410: }
1.58 www 411:
1.159 albertel 412: #added vars to the scripting enviroment
1.213 albertel 413: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.24 albertel 414: &Apache::run::run($expression,$safeeval);
1.159 albertel 415: my $status;
416: my $accessmsg;
417:
418: #should get back a <html> or the neccesary stuff to start XML/MathML
419: my ($result,$head_tag_start,$body_tag_start,$form_tag_start)=
420: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
421: if ($target eq 'tex' and $ENV{'request.symb'} =~ m/\.page_/) {$result='';}
422:
423: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval); }
424: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
425: $target eq 'tex') {
426: #handle exam checkout
427: if ($Apache::lonhomework::type eq 'exam') {
428: my $token=
429: $Apache::lonhomework::history{"resource.0.outtoken"};
430: if (($ENV{'form.doescheckout'}) && (!$token)) {
431: $token=&Apache::lonxml::maketoken();
432: $Apache::lonhomework::history{"resource.0.outtoken"}=
433: $token;
434: }
435: $body_tag_start.=&Apache::lonxml::printtokenheader($target,$token);
1.142 albertel 436: }
1.159 albertel 437:
438: #handle rand seed in construction space
439: my $rndseed=&setup_rndseed($safeeval);
1.162 albertel 440: my ($symb)=&Apache::lonxml::whichuser();
1.163 albertel 441: if ($ENV{'request.state'} ne "construct" && $symb eq '') {
1.162 albertel 442: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
443: $rndseed.'" />'.
444: '<input type="submit" name="resetdata"
1.211 albertel 445: value="'.&mt('New Problem Variation').'" />'.
1.164 albertel 446: '<input type="hidden" name="username"
1.185 albertel 447: value="'.$ENV{'form.username'}.'" /> <br />';
1.162 albertel 448: }
1.159 albertel 449: ($status,$accessmsg) = &Apache::lonhomework::check_access('0');
450: push (@Apache::inputtags::status,$status);
451: my $expression='$external::datestatus="'.$status.'";';
452: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
453: &Apache::run::run($expression,$safeeval);
454: &Apache::lonxml::debug("Got $status");
455: if (( $status eq 'CLOSED' ) ||
456: ( $status eq 'UNCHECKEDOUT') ||
457: ( $status eq 'BANNED') ||
1.216 albertel 458: ( $status eq 'UNAVAILABLE') ||
459: ( $status eq 'INVALID_ACCESS')) {
1.159 albertel 460: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser);
461: if ( $target eq "web" ) {
462: $result.= $head_tag_start.'</head>';
463: my $msg=$body_tag_start;
464: if ($status eq 'UNAVAILABLE') {
1.211 albertel 465: $result.='<h1>'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</h1>';
1.159 albertel 466: } else {
1.211 albertel 467: $result.='<h1>'.&mt('Not open to be viewed').'</h1>';
1.159 albertel 468: }
1.216 albertel 469: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.159 albertel 470: $msg.='The problem '.$accessmsg;
471: } elsif ($status eq 'UNCHECKEDOUT') {
472: $msg.=&checkout_msg;
473: }
474: $result.=$msg.'<br />';
475: } elsif ($target eq 'tex') {
476: $result.='\begin{document}\noindent \vskip 1 mm \begin{minipage}{\textwidth}\vskip 0 mm';
477: if ($status eq 'UNAVAILABLE') {
1.211 albertel 478: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 479: } else {
1.211 albertel 480: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 481: }
482: }
483: } elsif ($target eq 'web') {
484: my $name= &get_resource_name($parstack,$safeeval);
1.227 albertel 485: $result.="$head_tag_start<title>$name</title></head>
1.158 sakharuk 486: $body_tag_start \n $form_tag_start".
1.227 albertel 487: '<input type="hidden" name="submitted" value="yes" />';
488: # create a page header and exit
489: if ($ENV{'request.state'} eq "construct") {
490: $result.= &problem_web_to_edit_header($ENV{'form.rndseed'});
491: }
492: # if we are viewing someone else preserve that info
493: if (defined $ENV{'form.grade_symb'}) {
494: foreach my $field ('symb','courseid','domain','username') {
495: $result .= '<input type="hidden" name="grade_'.$field.
496: '" value="'.$ENV{"form.grade_$field"}.'" />'."\n";
1.159 albertel 497: }
498: }
499: } elsif ($target eq 'tex') {
1.192 sakharuk 500: my $startminipage = '';
1.191 sakharuk 501: if (not $ENV{'form.problem_split'}=~/yes/) {
1.192 sakharuk 502: $startminipage = '\begin{minipage}{\textwidth}';
1.178 sakharuk 503: }
1.159 albertel 504: my $id = $Apache::inputtags::part;
505: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.223 sakharuk 506: my $packages=&Apache::lonnet::metadata($ENV{'request.uri'},'packages');
507: my @packages = split /,/,$packages;
508: my $allow_print_points = 0;
509: foreach my $partial_key (@packages) {
1.230 albertel 510: if ($partial_key=~m/^part_0$/) {
1.223 sakharuk 511: $allow_print_points=1;
1.159 albertel 512: }
513: }
514: my $duedate = &Apache::lonnet::EXT("resource.$id.duedate");
515: $duedate = POSIX::strftime("%c",localtime($duedate));
516: my $temp_file;
517: my $filename = "/home/httpd/prtspool/$ENV{'user.name'}_$ENV{'user.domain'}_printout.due";
518: if (-e $filename) {
519: $temp_file = Apache::File->new($filename);
520: } else {
521: $temp_file = Apache::File->new('>>'.$filename);
522: }
523: my @due_file_content = <$temp_file>;
524: my $due_file_content = $due_file_content[$#due_file_content];
525: chomp $due_file_content;
1.231 sakharuk 526: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval));
1.159 albertel 527: if ($due_file_content ne $duedate) {
528: $temp_file = Apache::File->new('>'.$filename);
529: print $temp_file "$duedate\n";
530: if (not $ENV{'request.symb'} =~ m/\.page_/) {
531: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
1.206 sakharuk 532: $result .= '\begin{document} \typeout{STAMPOFPASSEDRESOURCESTART Resource <h2>"'.$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 533: } else {
1.206 sakharuk 534: $result .= '\begin{document} \typeout{STAMPOFPASSEDRESOURCESTART Resource <h2>"'.$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}{'.$name_of_resourse.'}';
1.159 albertel 535: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
536: }
1.104 sakharuk 537: } else {
1.159 albertel 538: $result .= '\vskip 1mm\textit{Due date: '.$duedate.'} \\\\\\\\';
1.104 sakharuk 539: }
1.101 sakharuk 540: } else {
1.159 albertel 541: if (not $ENV{'request.symb'} =~ m/\.page_/) {
1.206 sakharuk 542: $result .= '\begin{document} \typeout{STAMPOFPASSEDRESOURCESTART Resource <h2>"'.$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}{'.$name_of_resourse.'}';
1.159 albertel 543: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
544: } else {
545: $result .= '\vskip 1mm \\\\\\\\';
546: }
547: }
1.99 sakharuk 548: }
1.159 albertel 549: } elsif ($target eq 'edit') {
550: $result.=$head_tag_start."</head>".$body_tag_start.$form_tag_start.
551: &problem_edit_header();
1.226 albertel 552: $Apache::lonxml::warnings_error_header=
553: &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 554: my $temp=&Apache::edit::insertlist($target,$token);
555: $result.=$temp;
556: } elsif ($target eq 'modified') {
557: $result=$token->[4];
558: $result.=&Apache::edit::handle_insert();
559: } else {
560: # page_start returned a starting result, delete it if we don't need it
561: $result = '';
1.99 sakharuk 562: }
1.159 albertel 563: return $result;
1.9 albertel 564: }
565:
566: sub end_problem {
1.159 albertel 567: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
568: my $result='';
569: my $status=$Apache::inputtags::status['-1'];
570: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
571: $target eq 'tex') {
572: if ( $target eq 'grade' && $Apache::inputtags::part eq '0' &&
1.232 albertel 573: ($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode)) {
1.159 albertel 574: # if part is zero, no <part>s existed, so we need to the grading
575: &Apache::inputtags::grade;
576: } elsif ( ($target eq 'web' || $target eq 'tex') &&
577: $Apache::inputtags::part eq '0' &&
578: $status ne 'UNCHECKEDOUT') {
579: # if part is zero, no <part>s existed, so we need show the current
580: # grading status
581: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
582: $result.= $gradestatus;
583: }
584: if (
585: (($target eq 'web') && ($ENV{'request.state'} ne 'construct')) ||
586: ($target eq 'answer') || ($target eq 'tex')
587: ) {
1.227 albertel 588: if ($target ne 'tex' &&
589: $ENV{'form.answer_output_mode'} ne 'tex') {
590: $result.="</form></body>\n";
1.159 albertel 591: }
592: if ($target eq 'web') {
593: $result.=&Apache::lonxml::xmlend();
594: } elsif ($target eq 'tex') {
1.178 sakharuk 595: my $endminipage = '';
1.191 sakharuk 596: if (not $ENV{'form.problem_split'}=~/yes/) {
1.178 sakharuk 597: $endminipage = '\end{minipage}';
598: }
1.174 sakharuk 599: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.159 albertel 600: if (not $ENV{'request.symb'} =~ m/\.page_/) {
1.178 sakharuk 601: $result .= $endminipage.'\end{document} ';
1.159 albertel 602: } else {
603: $result .= '';
604: }
605: }
606: }
607: if ($target eq 'grade') {
608: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
609: &finalize_storage();
610: }
1.172 albertel 611: if ($target eq 'answer' && ($ENV{'request.state'} eq 'construct')
1.173 albertel 612: && $ENV{'form.answer_output_mode'} ne 'tex') {
1.172 albertel 613: $result.='</html>'; # normally we get it from xmlend, but in CSTR
614: # we always show answer mode too.
1.159 albertel 615: }
616: } elsif ($target eq 'meta') {
617: if ($Apache::inputtags::part eq '0') {
1.179 albertel 618: @Apache::inputtags::response=();
1.159 albertel 619: $result=&Apache::response::mandatory_part_meta;
620: }
1.215 albertel 621: $result.=&Apache::response::meta_part_order();
1.159 albertel 622: } elsif ($target eq 'edit') {
623: &Apache::lonxml::debug("in end_problem with $target, edit");
624: $result = &problem_edit_footer();
625: }
1.155 albertel 626:
1.177 albertel 627: if ($ENV{'request.state'} eq 'construct' && $target eq 'web') {
628: &Apache::inputtags::check_for_duplicate_ids();
629: }
1.204 albertel 630:
631: &reset_problem_globals('problem');
1.159 albertel 632:
633: return $result;
1.48 albertel 634: }
635:
1.108 albertel 636:
1.48 albertel 637: sub start_library {
1.159 albertel 638: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
639: my ($result,$head_tag_start,$body_tag_start,$form_tag_start);
1.204 albertel 640: if ($$tagstack[0] eq 'library') { &init_problem_globals('library') };
1.159 albertel 641: if ($target eq 'edit') {
642: ($result,$head_tag_start,$body_tag_start,$form_tag_start)=
643: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
644: $result.=$head_tag_start."</head>".$body_tag_start.$form_tag_start.
645: &problem_edit_header();
646: my $temp=&Apache::edit::insertlist($target,$token);
647: $result.=$temp;
648: } elsif ($target eq 'modified') {
649: $result=$token->[4];
650: $result.=&Apache::edit::handle_insert();
651: } elsif ($target eq 'web' && $$tagstack[0] ne 'problem' &&
652: $ENV{'request.state'} eq "construct" ) {
653: ($result,$head_tag_start,$body_tag_start,$form_tag_start)=
654: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
655: my $name=&get_resource_name($parstack,$safeeval);
656: my $rndseed=&setup_rndseed($safeeval);
657: $result.="$head_tag_start<title>$name</title></head>
1.105 albertel 658: $body_tag_start \n $form_tag_start".
1.159 albertel 659: '<input type="hidden" name="submitted" value="yes" />';
660: $result.=&problem_web_to_edit_header($rndseed);
661: }
662: return $result;
1.48 albertel 663: }
664:
665: sub end_library {
1.159 albertel 666: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
667: my $result='';
668: if ($target eq 'edit') {
669: $result=&problem_edit_footer();
670: } elsif ($target eq 'web' && $$tagstack[0] ne 'problem' &&
671: $ENV{'request.state'} eq "construct") {
672: $result.='</form></body>'.&Apache::lonxml::xmlend();
673: }
1.204 albertel 674: if ($$tagstack[0] eq 'library') { &reset_problem_globals('library') };
1.159 albertel 675: return $result;
1.197 www 676: }
677:
678: sub start_definetag {
679: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
680:
681: my $result;
682:
683: my $name = $token->[2]->{'name'};
684: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser);
685: if ($name=~/^\//) {
686: $result=
687: '<br /><table bgcolor="#FFBBBB"><tr><th>END <tt>'.$name.'</tt></th></tr>';
688: } else {
689: $result=
690: '<br /><table bgcolor="#BBFFBB"><tr><th>BEGIN <tt>'.$name.'</tt></th></tr>';
691: }
692: $skip=~s/\</\<\;/gs;
693: $skip=~s/\>/\>\;/gs;
694: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
695: return $result;
696: }
697:
698: sub end_definetag {
699: return '';
1.1 albertel 700: }
701:
702: sub start_block {
1.201 albertel 703: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 704:
705: my $result;
1.1 albertel 706:
1.160 albertel 707: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.131 albertel 708: $target eq 'tex' || $target eq 'analyze') {
1.159 albertel 709: my $code = $token->[2]->{'condition'};
1.201 albertel 710: if (defined($code)) {
1.137 albertel 711: if (!$Apache::lonxml::default_homework_loaded) {
712: &Apache::lonxml::default_homework_load($safeeval);
713: }
1.131 albertel 714: $result = &Apache::run::run($code,$safeeval);
715: &Apache::lonxml::debug("block :$code: returned :$result:");
716: } else {
717: $result='1';
718: }
719: if ( ! $result ) {
1.201 albertel 720: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 721: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
722: }
723: $result='';
724: } elsif ($target eq 'edit') {
725: $result .=&Apache::edit::tag_start($target,$token);
726: $result .=&Apache::edit::text_arg('Test Condition:','condition',
727: $token,40);
728: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
729: } elsif ($target eq 'modified') {
730: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
731: $safeeval,'condition');
732: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 733: }
1.131 albertel 734: return $result;
1.1 albertel 735: }
736:
737: sub end_block {
1.167 www 738: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
739: my $result;
740: if ($target eq "edit") {
741: $result.= &Apache::edit::tag_end($target,$token,'');
742: }
743: return $result;
744: }
745:
746: sub start_languageblock {
1.201 albertel 747: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 748:
749: my $result;
750:
751: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
752: $target eq 'tex' || $target eq 'analyze') {
1.201 albertel 753: my $include = $token->[2]->{'include'};
754: my $exclude = $token->[2]->{'exclude'};
755: my %languages=&Apache::loncommon::display_languages();
756: $result='1';
757: if ($include) {
758: $result='';
759: foreach (split(/\,/,$include)) {
760: if ($languages{$_}) { $result='1'; }
761: }
762: }
763: if ($exclude) {
764: foreach (split(/\,/,$exclude)) {
765: if ($languages{$_}) { $result='0'; }
766: }
767: }
768: if ( ! $result ) {
769: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
770: $style);
771: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
772: }
773: $result='';
1.167 www 774: } elsif ($target eq 'edit') {
775: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 776: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 777: $token,40);
1.211 albertel 778: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 779: $token,40);
780: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
781: } elsif ($target eq 'modified') {
782: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 783: $safeeval,'include',
784: 'exclude');
1.167 www 785: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
786: }
787: return $result;
788: }
789:
790: sub end_languageblock {
1.170 www 791: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
792: my $result;
1.201 albertel 793: if ($target eq "edit") {
1.170 www 794: $result.= &Apache::edit::tag_end($target,$token,'');
795: }
796: return $result;
797: }
798:
799: sub start_instructorcomment {
1.201 albertel 800: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 801:
802: my $result;
803:
804: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
805: $target eq 'tex' || $target eq 'analyze') {
806: $result=($ENV{'request.role'}=~/^(in|cc|au|ca|li)/);
807: if ( ! $result ) {
1.201 albertel 808: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
809: $parser,$style);
1.170 www 810: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
811: }
812: $result='';
813: } elsif ($target eq 'edit') {
814: $result .=&Apache::edit::tag_start($target,$token);
815: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
816: }
817: return $result;
818: }
819:
820: sub end_instructorcomment {
1.159 albertel 821: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 822: my $result;
823: if ($target eq "edit") {
824: $result.= &Apache::edit::tag_end($target,$token,'');
825: }
826: return $result;
1.4 tsai 827: }
828:
829: sub start_while {
1.159 albertel 830: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
831:
1.160 albertel 832: my $result;
1.161 albertel 833: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.160 albertel 834: $target eq 'tex' || $target eq 'analyze') {
835: my $code = $token->[2]->{'condition'};
1.4 tsai 836:
1.160 albertel 837: push( @Apache::structuretags::whileconds, $code);
838: if (!$Apache::lonxml::default_homework_loaded) {
839: &Apache::lonxml::default_homework_load($safeeval);
840: }
841: my $result = &Apache::run::run($code,$safeeval);
1.161 albertel 842: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser);
1.160 albertel 843: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 844: push( @Apache::structuretags::whileline, $token->[5]);
845: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 846: if ( $result ) {
847: &Apache::lonxml::newparser($parser,\$bodytext);
848: }
849: } elsif ($target eq 'edit') {
850: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 851: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 852: $token,40);
853: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
854: } elsif ($target eq 'modified') {
855: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
856: $safeeval,'condition');
857: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 858: }
1.160 albertel 859: return $result;
1.4 tsai 860: }
861:
862: sub end_while {
1.159 albertel 863: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 864: my $result;
865:
866: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
867: $target eq 'tex' || $target eq 'analyze') {
868: my $code = pop(@Apache::structuretags::whileconds);
869: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 870: my $line = pop(@Apache::structuretags::whileline);
871: my $return = &Apache::run::run($code,$safeeval);
872: my $starttime=time;
873: my $error=0;
874: while ($return) {
875: if (time-$starttime >
876: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
877: $return = 0; $error=1; next;
878: }
879: $result.=&Apache::scripttag::xmlparse($bodytext);
880: $return = &Apache::run::run($code,$safeeval);
881: }
882: if ($error) {
1.211 albertel 883: &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 884: }
885: } elsif ($target eq "edit") {
886: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 887: }
1.160 albertel 888: return $result;
1.1 albertel 889: }
1.6 tsai 890:
1.160 albertel 891: # <randomlist show="1">
1.6 tsai 892: # <tag1>..</tag1>
893: # <tag2>..</tag2>
894: # <tag3>..</tag3>
1.160 albertel 895: # ...
1.6 tsai 896: # </randomlist>
897: sub start_randomlist {
1.159 albertel 898: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
899: my $result;
900: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
901: $target eq 'tex' || $target eq 'analyze') {
902: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
903: my $b_parser= HTML::TokeParser->new(\$body);
904: my $b_tok;
905: my @randomlist;
906: my $list_item;
907: while($b_tok = $b_parser->get_token() ) {
908: if($b_tok->[0] eq 'S') { # start tag
909: # get content of the tag until matching end tag
910: # get all text upto the matching tag
911: # and push the content into @randomlist
912: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
913: $b_parser);
914: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
915: push(@randomlist,$list_item);
916: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
917: # $list_item</b>";
918: }
919: if($b_tok->[0] eq 'T') { # text
920: # what to do with text in between tags?
921: # print "<b>TEXT $b_tok->[1]</b><br />";
922: }
923: # if($b_tok->[0] eq 'E') { # end tag, should not happen
924: # print "<b>END-TAG $b_tok->[1]</b><br />";
925: # }
926: }
927: my @idx_arr = (0 .. $#randomlist);
928: &Apache::structuretags::shuffle(\@idx_arr);
929: my $bodytext = '';
930: my $show=$#randomlist;
931: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
932: $showarg--;
933: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
934: for(0 .. $show) {
935: $bodytext .= "$randomlist[ $idx_arr[$_] ]";
936: }
937: &Apache::lonxml::newparser($parser,\$bodytext);
938: } elsif ($target eq 'edit' ) {
939: $result .=&Apache::edit::tag_start($target,$token);
940: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
941: $token,5);
942: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
943: } elsif ($target eq 'modified' ) {
944: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
945: $safeeval,'show');
946: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
947: }
948: return $result;
1.7 tsai 949: }
950:
951: sub shuffle {
952: my $a=shift;
953: my $i;
1.70 albertel 954: if (defined(@$a)) {
1.159 albertel 955: &Apache::response::setrandomnumber();
956: for($i=@$a;--$i;) {
957: my $j=int(&Math::Random::random_uniform() * ($i+1));
958: next if $i == $j;
959: @$a[$i,$j] = @$a[$j,$i];
960: }
1.7 tsai 961: }
1.6 tsai 962: }
963:
964: sub end_randomlist {
1.159 albertel 965: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
966: my $result;
967: if ($target eq 'edit' ) {
968: $result=&Apache::edit::tag_end($target,$token,
969: 'End Randomly Parsed Block');
970: }
971: return $result;
1.6 tsai 972: }
973:
1.11 albertel 974: sub start_part {
1.159 albertel 975: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
976: my $result='';
977: my $id= &Apache::lonxml::get_param('id',$parstack,$safeeval);
978: if ($id eq '') { $id = $Apache::lonxml::curdepth; }
979: $Apache::inputtags::part=$id;
1.177 albertel 980: push(@Apache::inputtags::partlist,$id);
981: @Apache::inputtags::response=();
1.159 albertel 982: @Apache::inputtags::previous=();
983: @Apache::inputtags::previous_version=();
1.169 albertel 984: $Apache::lonhomework::problemstatus=
985: &Apache::lonnet::EXT("resource.$id.problemstatus");
1.159 albertel 986: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.214 albertel 987: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.209 albertel 988: &Apache::run::run($expression,$safeeval);
1.159 albertel 989:
990: if ($target eq 'meta') {
1.224 www 991: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
992: return &Apache::response::mandatory_part_meta.
993: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 994: } elsif ($target eq 'web' || $target eq 'grade' ||
995: $target eq 'answer' || $target eq 'tex') {
996: if ($hidden) {
997: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser);
998: } else {
999: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
1000: push (@Apache::inputtags::status,$status);
1001: my $expression='$external::datestatus="'.$status.'";';
1002: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
1003: &Apache::run::run($expression,$safeeval);
1.216 albertel 1004: if (( $status eq 'CLOSED' ) ||
1005: ( $status eq 'UNCHECKEDOUT') ||
1006: ( $status eq 'BANNED') ||
1007: ( $status eq 'UNAVAILABLE') ||
1008: ( $status eq 'INVALID_ACCESS')) {
1.159 albertel 1009: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser);
1010: if ( $target eq "web" ) {
1.211 albertel 1011: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 1012: } elsif ( $target eq 'tex' ) {
1.195 sakharuk 1013: if (not $ENV{'form.problem_split'}=~/yes/) {
1.211 albertel 1014: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 1015: } else {
1.211 albertel 1016: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 1017: }
1.159 albertel 1018: }
1019: } else {
1020: if ($target eq 'tex') {
1.195 sakharuk 1021: if (not $ENV{'form.problem_split'}=~/yes/) {
1022: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1023: }
1.159 albertel 1024: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.230 albertel 1025: my $allkeys=&Apache::lonnet::metadata($ENV{'request.uri'},'packages');
1.222 sakharuk 1026: my @allkeys = split /,/,$allkeys;
1027: my $allow_print_points = 0;
1028: foreach my $partial_key (@allkeys) {
1.230 albertel 1029: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 1030: if ($1 ne '0') {$allow_print_points=1;}
1031: }
1032: }
1033: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
1.233 www 1034: } elsif ($target eq 'web') {
1035: $result.='<a name="'.&Apache::lonnet::escape($Apache::inputtags::part).'" />';
1.159 albertel 1036: }
1037: }
1038: }
1039: } elsif ($target eq 'edit') {
1040: $result.=&Apache::edit::tag_start($target,$token);
1041: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
1042: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 1043: ' '.
1044: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 1045: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
1046: } elsif ($target eq 'modified') {
1047: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 1048: $safeeval,'id','display');
1.159 albertel 1049: if ($constructtag) {
1.225 albertel 1050: #limiting ids to only letters numbers, and space
1.224 www 1051: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 1052: $result = &Apache::edit::rebuild_tag($token);
1053: $result.=&Apache::edit::handle_insert();
1054: }
1055: }
1056: return $result;
1.11 albertel 1057: }
1058:
1059: sub end_part {
1.159 albertel 1060: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1061: &Apache::lonxml::debug("in end_part $target ");
1062: my $status=$Apache::inputtags::status['-1'];
1063: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1064: my $result='';
1065: if ( $target eq 'meta' ) {
1066: $result='';
1.232 albertel 1067: } elsif ($target eq 'grade' &&
1068: ($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1069: !$hidden) {
1.159 albertel 1070: $result=&Apache::inputtags::grade;
1071: } elsif (($target eq 'web' || $target eq 'tex') && !$hidden ) {
1072: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
1073: $target);
1.212 albertel 1074: if ($Apache::lonhomework::type eq 'exam' && $target eq 'tex') {
1075: $gradestatus='';
1076: }
1.159 albertel 1077: $result=$gradestatus;
1.181 albertel 1078: } elsif ($target eq 'edit') {
1079: $result=&Apache::edit::end_table();
1.159 albertel 1080: }
1081: pop @Apache::inputtags::status;
1082: $Apache::inputtags::part='';
1083: return $result;
1.11 albertel 1084: }
1.1 albertel 1085:
1.25 albertel 1086: sub start_preduedate {
1.159 albertel 1087: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1088: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' || $target eq 'tex') {
1.236 ! albertel 1089: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.159 albertel 1090: if ($Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 ! albertel 1091: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
! 1092: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.159 albertel 1093: &Apache::lonxml::get_all_text("/preduedate",$parser);
1094: }
1.24 albertel 1095: }
1.159 albertel 1096: return '';
1.24 albertel 1097: }
1098:
1.25 albertel 1099: sub end_preduedate {
1.159 albertel 1100: return '';
1.24 albertel 1101: }
1102:
1.25 albertel 1103: sub start_postanswerdate {
1.159 albertel 1104: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.234 albertel 1105: if ($target eq 'web' || $target eq 'grade') {
1.159 albertel 1106: if ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER') {
1107: &Apache::lonxml::get_all_text("/postanswerdate",$parser);
1108: }
1109: } elsif ($target eq 'tex') {
1.234 albertel 1110: &Apache::lonxml::get_all_text("/postanswerdate",$parser);
1.159 albertel 1111: }
1112: return '';
1.24 albertel 1113: }
1114:
1.25 albertel 1115: sub end_postanswerdate {
1.159 albertel 1116: return '';
1.24 albertel 1117: }
1118:
1.25 albertel 1119: sub start_notsolved {
1.159 albertel 1120: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1121: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1122: $target eq 'tex') {
1123: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1124: &Apache::lonxml::debug("not solved has :$gradestatus:");
1125: if ($gradestatus =~ /^correct/) {
1126: &Apache::lonxml::debug("skipping");
1127: &Apache::lonxml::get_all_text("/notsolved",$parser);
1128: }
1.24 albertel 1129: }
1.159 albertel 1130: return '';
1.24 albertel 1131: }
1132:
1.25 albertel 1133: sub end_notsolved {
1.159 albertel 1134: return '';
1.24 albertel 1135: }
1136:
1137: sub start_solved {
1.159 albertel 1138: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1139: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1140: $target eq 'tex') {
1141: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1142: if ($gradestatus !~ /^correct/) {
1143: &Apache::lonxml::get_all_text("/solved",$parser);
1144: }
1.24 albertel 1145: }
1.159 albertel 1146: return '';
1.24 albertel 1147: }
1148:
1149: sub end_solved {
1.159 albertel 1150: return '';
1.24 albertel 1151: }
1.34 albertel 1152:
1153: sub start_startouttext {
1.159 albertel 1154: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1155: my @result=(''.'');
1156: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1157: return (@result);
1.34 albertel 1158: }
1.159 albertel 1159:
1.34 albertel 1160: sub end_startouttext {
1.159 albertel 1161: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1162: my $result='';
1163: my $text='';
1164:
1165: if ($target eq 'edit') {
1166: $text=&Apache::lonxml::get_all_text("endouttext",$parser);
1.211 albertel 1167: $result.=&Apache::edit::start_table($token)."<tr><td>".&mt('Text Block')."</td>
1168: <td>".&mt('Delete:').
1.159 albertel 1169: &Apache::edit::deletelist($target,$token)
1170: ."</td>
1.42 albertel 1171: <td>".
1.159 albertel 1172: &Apache::edit::insertlist($target,$token).
1173: &Apache::edit::end_row().
1174: &Apache::edit::start_spanning_row()."\n"
1.188 bowersj2 1175: . &Apache::loncommon::helpLatexCheatsheet () .
1.159 albertel 1176: &Apache::edit::editfield($token->[1],$text,"",80,4);
1177: }
1178: if ($target eq 'modified') {
1.219 albertel 1179: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 1180: }
1181: if ($target eq 'tex') {
1182: $result .= '\noindent ';
1183: }
1184: return $result;
1.34 albertel 1185: }
1.159 albertel 1186:
1.34 albertel 1187: sub start_endouttext {
1.159 albertel 1188: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1189: my $result='';
1190: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
1191: if ($target eq "modified") {
1192: $result='<endouttext />'.
1193: &Apache::edit::handle_insertafter('startouttext'); }
1194: return $result;
1.34 albertel 1195: }
1.159 albertel 1196:
1.34 albertel 1197: sub end_endouttext {
1.159 albertel 1198: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1199: my @result=('','');
1200: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
1201: return (@result);
1.34 albertel 1202: }
1.159 albertel 1203:
1.45 albertel 1204: sub delete_startouttext {
1.159 albertel 1205: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1206: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser);
1207: my $text=$$parser['-1']->get_text("/endouttext");
1208: my $ntoken=$$parser['-1']->get_token();
1209: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
1210: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
1211: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
1212: # they did the last time round
1213: &Apache::lonxml::increasedepth($ntoken);
1214: &Apache::lonxml::decreasedepth($ntoken);
1215: return 1;
1.193 www 1216: }
1217:
1218: sub start_simpleeditbutton {
1219: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1220: my $result='';
1221: if (($target eq 'web') &&
1222: (&Apache::lonnet::allowed('srm',$ENV{'request.course.id'}))) {
1.220 www 1223: my $url=$ENV{'request.noversionuri'};
1.193 www 1224: $url=~s/\?.*$//;
1.194 www 1225: $result='<table width="100%" bgcolor="#FFFFAA" border="2"><tr><td>'.
1.211 albertel 1226: '<a href="'.$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 1227: &Apache::loncommon::help_open_topic('Caching').'</td></tr></table><br />';
1.193 www 1228: }
1229: return $result;
1230: }
1231:
1232: sub end_simpleeditbutton {
1233: return '';
1.45 albertel 1234: }
1.34 albertel 1235:
1.1 albertel 1236: 1;
1237: __END__
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