Annotation of loncom/homework/structuretags.pm, revision 1.200.2.4
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.200.2.3 albertel 4: # $Id: structuretags.pm,v 1.200.2.2 2003/10/03 15:27:56 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;
1.1 albertel 39:
1.78 harris41 40: BEGIN {
1.193 www 41: &Apache::lonxml::register('Apache::structuretags',('block','languageblock','instructorcomment','while','randomlist','problem','library','web','tex','part','preduedate','postanswerdate','solved','notsolved','startouttext','endouttext',
1.197 www 42: 'simpleeditbutton','definetag'));
1.10 albertel 43: }
44:
45: sub start_web {
1.159 albertel 46: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.200 albertel 47: my $bodytext=&Apache::lonxml::get_all_text("/web",$parser);
48: if ($target eq 'web') {
49: return $bodytext;
1.159 albertel 50: }
51: return '';
1.10 albertel 52: }
53:
54: sub end_web {
1.44 ng 55: return '';
1.10 albertel 56: }
57:
58: sub start_tex {
1.159 albertel 59: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.198 sakharuk 60: my $result='';
1.200 albertel 61: my $bodytext=&Apache::lonxml::get_all_text("/tex",$parser);
62: if ($target eq 'tex') {
63: return $bodytext.' ';
1.159 albertel 64: }
1.198 sakharuk 65: return $result;;
1.10 albertel 66: }
67:
68: sub end_tex {
1.44 ng 69: return '';
1.9 albertel 70: }
71:
1.48 albertel 72: sub page_start {
1.159 albertel 73: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
74: my %found;
1.200.2.1 albertel 75: foreach my $taginside (@$tagstack) {
1.159 albertel 76: foreach my $taglookedfor ('html','body','form') {
77: if ($taginside =~ /^$taglookedfor$/i) {$found{$taglookedfor} = 1;}
78: }
79: }
80:
81: my $result;
82: my $head_tag_start;
83: if (!defined($found{'html'})) {
84: $result=&Apache::londefdef::start_html($target,$token,$tagstack,
85: $parstack,$parser,$safeeval);
86: $head_tag_start='<head>'.&Apache::lonmenu::registerurl(undef,$target);
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");
1.162 albertel 117: $help="Browsing resource, all submissions are temporary.<br />";
1.159 albertel 118: $body_tag_start.=$help;
119: }
120: }
121: }
122: my $form_tag_start;
123: if (!defined($found{'form'})) {
124: $form_tag_start='<form name="lonhomework" method="POST" action="'.
125: $ENV{'request.uri'}.'">';
126: }
127: return ($result,$head_tag_start,$body_tag_start,$form_tag_start);
1.105 albertel 128: }
129:
1.141 matthew 130: #use Time::HiRes();
1.105 albertel 131: sub get_resource_name {
1.159 albertel 132: my ($parstack,$safeeval)=@_;
133: my $name=&Apache::lonnet::gettitle();
134: if ($name eq '') {
135: $name=&Apache::lonnet::EXT('resource.title');
136: if ($name eq 'con_lost') { $name = ''; }
137: }
138: $Apache::lonhomework::name=$name;
139: return $name;
1.105 albertel 140: }
141:
142: sub setup_rndseed {
1.159 albertel 143: my ($safeeval)=@_;
144: my $rndseed;
1.162 albertel 145: my ($symb)=&Apache::lonxml::whichuser();
146: if ($ENV{'request.state'} eq "construct" || $symb eq '') {
1.159 albertel 147: $rndseed=$ENV{'form.rndseed'};
148: if (!$rndseed) {
1.162 albertel 149: $rndseed=$Apache::lonhomework::history{'rndseed'};
150: if (!$rndseed) {
151: $rndseed=time;
152: $ENV{'form.rndseed'}=$rndseed;
153: }
154: }
1.175 albertel 155: if ($ENV{'form.resetdata'} eq 'New Problem Variation' ||
156: $ENV{'form.newrandomization'} eq 'New Randomization') {
1.190 albertel 157: srand(time);
158: $rndseed=int(rand(2100000000));
1.159 albertel 159: $ENV{'form.rndseed'}=$rndseed;
1.180 albertel 160: delete($ENV{'form.resetdata'});
161: delete($ENV{'form.newrandomization'});
1.159 albertel 162: }
1.187 albertel 163: if (defined($rndseed) && $rndseed ne int($rndseed)) {
164: $rndseed=join(',',&Math::Random::random_seed_from_phrase($rndseed));
165: }
1.159 albertel 166: &Apache::lonxml::debug("Setting rndseed to $rndseed");
167: &Apache::run::run('$external::randomseed='.$rndseed.';',$safeeval);
168: }
169: return $rndseed;
1.105 albertel 170: }
171:
172: sub problem_edit_header {
1.159 albertel 173: return '<input type="hidden" name="submitted" value="edit" />
1.105 albertel 174: <input type="hidden" name="problemmode" value="Edit" />
175: <input type="submit" name="problemmode" value="Discard Edits and View" />
176: <input type="submit" name="problemmode" value="EditXML" />
177: <input type="submit" name="Undo" value="undo" /> <hr />
1.135 www 178: <input type="submit" name="submit" value="Submit Changes and Edit" />
179: <input type="submit" name="submit" value="Submit Changes and View" /><br /><p> </p><table border="0"><tr><td bgcolor="#DDDDDD">
1.105 albertel 180: ';
181: }
182:
183: sub problem_edit_footer {
1.159 albertel 184: return '</td></tr></table><br /><input type="submit" name="submit" value="Submit Changes and Edit" />
1.105 albertel 185: <input type="submit" name="submit" value="Submit Changes and View" />';
186: }
187:
188: sub problem_web_to_edit_header {
1.159 albertel 189: my ($rndseed)=@_;
190: my $result.='<input type="hidden" name="problemmode" value="View" />
1.105 albertel 191: <input type="submit" name="problemmode" value="Edit" />
192: <input type="submit" name="problemmode" value="EditXML" />
1.175 albertel 193: <input type="submit" name="newrandomization" value="New Randomization" />
1.105 albertel 194: <input type="submit" name="resetdata" value="Reset Submissions" />
1.175 albertel 195: <nobr><input type="submit" name="changerandseed" value="Change Random Seed To:" />
196: <input type="text" name="rndseed" width="10" value="'.
197: $rndseed.'"
198: onChange="javascript:document.lonhomework.changerandseed.click()" /></nobr>
1.105 albertel 199: <input type="checkbox" name="showallfoils" ';
1.159 albertel 200: if (defined($ENV{'form.showallfoils'})) { $result.='checked="on"'; }
201: $result.= ' /> Show All Foils
1.105 albertel 202: <hr />';
1.159 albertel 203: my $numtoanalyze=$ENV{'form.numtoanalyze'};
1.176 albertel 204: if (!$numtoanalyze) { $numtoanalyze=20; }
205: $result.= '<input type="submit" name="problemmode" value="Calculate answers" /> for
1.136 albertel 206: <input type="text" name="numtoanalyze" value="'.
1.176 albertel 207: $numtoanalyze.'" size="5" /> versions of this problem.'.
208: &Apache::loncommon::help_open_topic("Analyze_Problem",
209: '',undef,undef,300).
210: '<hr />';
1.159 albertel 211: return $result;
1.48 albertel 212: }
213:
1.65 albertel 214: sub initialize_storage {
1.159 albertel 215: %Apache::lonhomework::results=();
1.162 albertel 216: %Apache::lonhomework::history=();
1.159 albertel 217: my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser();
1.162 albertel 218: if ($ENV{'request.state'} eq 'construct' || $symb eq '') {
1.159 albertel 219: %Apache::lonhomework::history=
220: &Apache::lonnet::tmprestore($ENV{'request.uri'},'',$domain,$name);
221: my ($temp)=keys %Apache::lonhomework::history ;
222: &Apache::lonxml::debug("Return message of $temp");
223: } else {
224: %Apache::lonhomework::history=
225: &Apache::lonnet::restore($symb,$courseid,$domain,$name);
226: }
227: #ignore error conditions
1.67 albertel 228: my ($temp)=keys %Apache::lonhomework::history ;
1.159 albertel 229: if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); }
1.65 albertel 230: }
231:
232: # -------------------------------------------------------------finalize_storage
233: # Stores away the result has to a student's environment
234: # checks form.grade_ for specific values, other wises stores
235: # to the running users environment
236: sub finalize_storage {
1.159 albertel 237: my $result;
238: my ($temp) = keys %Apache::lonhomework::results;
239: if ( $temp ne '' ) {
240: my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser();
1.162 albertel 241: if ($ENV{'request.state'} eq 'construct' || $symb eq '') {
242: $Apache::lonhomework::results{'rndseed'}=$ENV{'form.rndseed'};
1.159 albertel 243: $result=&Apache::lonnet::tmpstore(\%Apache::lonhomework::results,
244: $ENV{'request.uri'},'',$domain,$name);
245: &Apache::lonxml::debug('Construct Store return message:'.$result);
246: } else {
247: $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,
248: $symb,$courseid,$domain,$name);
249: &Apache::lonxml::debug('Store return message:'.$result);
250: }
1.67 albertel 251: }
1.159 albertel 252: return $result;
1.65 albertel 253: }
254:
255: sub checkout_msg {
1.159 albertel 256: return (<<ENDCHECKOUT);
1.65 albertel 257: <h2>The resource needs to be checked out</h2>
258: As a resource gets checked out, a unique timestamped ID is given to it, and a
259: permanent record is left in the system.<p />
260: <font color=red>
261: Checking out resources is subject to course policies, and may exclude future
262: credit even if done erroneously.<p />
1.91 albertel 263: </font>
264: <form name="checkout" method="POST" action="$ENV{'request.uri'}">
265: <input type="hidden" name="doescheckout" value="yes" />
266: <input type="button" name="checkoutbutton" value="Check out Exam for Viewing" onClick="javascript:if (confirm('Check out Exam?')) { document.checkout.submit(); }" />
1.65 albertel 267: </form>
268: ENDCHECKOUT
269: }
270:
1.9 albertel 271: sub start_problem {
1.159 albertel 272: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.19 albertel 273:
1.184 albertel 274: if ( $Apache::inputtags::part ne '' ||
275: $Apache::lonhomework::parsing_a_problem) {
276: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
277: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser);
1.159 albertel 278: return '';
279: }
1.184 albertel 280:
281: $Apache::lonhomework::parsing_a_problem=1;
1.161 albertel 282: #initialize globals
1.159 albertel 283: $Apache::inputtags::part='0';
1.177 albertel 284: @Apache::inputtags::partlist=('0');
1.159 albertel 285: @Apache::inputtags::responselist = ();
1.177 albertel 286: @Apache::inputtags::importlist = ();
1.159 albertel 287: @Apache::inputtags::previous=();
288: @Apache::inputtags::previous_version=();
289: $Apache::structuretags::printanswer='No';
1.161 albertel 290: @Apache::structuretags::whileconds=();
291: @Apache::structuretags::whilebody=();
292: @Apache::structuretags::whileline=();
1.166 albertel 293: $Apache::lonhomework::scantronmode=0;
1.169 albertel 294: $Apache::lonhomework::problemstatus=
295: &Apache::lonnet::EXT('resource.0.problemstatus');
1.166 albertel 296:
297: if (defined($ENV{'scantron.maxquest'})) {
298: $Apache::lonhomework::scantronmode=1;
299: }
1.161 albertel 300:
1.159 albertel 301: if ($target ne 'analyze') {
302: &initialize_storage();
303: if ($target eq 'web') {
304: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
305: }
306: $Apache::lonhomework::type=&Apache::lonnet::EXT('resource.0.type');
307: &Apache::lonxml::debug("Found this to be of type :$Apache::lonhomework::type:");
308: }
1.164 albertel 309: if ($Apache::lonhomework::type eq '' ) {
1.159 albertel 310: my $uri=$ENV{'request.uri'};
311: if ($uri=~/\.(\w+)$/) {
312: $Apache::lonhomework::type=$1;
313: &Apache::lonxml::debug("Using type of $1");
314: } else {
315: $Apache::lonhomework::type='problem';
316: &Apache::lonxml::debug("Using default type, problem, :$uri:");
317: }
1.87 albertel 318: }
1.58 www 319:
1.159 albertel 320: #added vars to the scripting enviroment
321: my $expression='$external::part='.$Apache::inputtags::part.';';
1.24 albertel 322: &Apache::run::run($expression,$safeeval);
1.159 albertel 323: my $status;
324: my $accessmsg;
325:
326: #should get back a <html> or the neccesary stuff to start XML/MathML
327: my ($result,$head_tag_start,$body_tag_start,$form_tag_start)=
328: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
329: if ($target eq 'tex' and $ENV{'request.symb'} =~ m/\.page_/) {$result='';}
330:
331: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval); }
332: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
333: $target eq 'tex') {
334: #handle exam checkout
335: if ($Apache::lonhomework::type eq 'exam') {
336: my $token=
337: $Apache::lonhomework::history{"resource.0.outtoken"};
338: if (($ENV{'form.doescheckout'}) && (!$token)) {
339: $token=&Apache::lonxml::maketoken();
340: $Apache::lonhomework::history{"resource.0.outtoken"}=
341: $token;
342: }
343: $body_tag_start.=&Apache::lonxml::printtokenheader($target,$token);
1.142 albertel 344: }
1.159 albertel 345:
346: #handle rand seed in construction space
347: my $rndseed=&setup_rndseed($safeeval);
1.162 albertel 348: my ($symb)=&Apache::lonxml::whichuser();
1.163 albertel 349: if ($ENV{'request.state'} ne "construct" && $symb eq '') {
1.162 albertel 350: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
351: $rndseed.'" />'.
352: '<input type="submit" name="resetdata"
1.164 albertel 353: value="New Problem Variation" />'.
354: '<input type="hidden" name="username"
1.185 albertel 355: value="'.$ENV{'form.username'}.'" /> <br />';
1.162 albertel 356: }
1.159 albertel 357: ($status,$accessmsg) = &Apache::lonhomework::check_access('0');
358: push (@Apache::inputtags::status,$status);
359: my $expression='$external::datestatus="'.$status.'";';
360: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
361: &Apache::run::run($expression,$safeeval);
362: &Apache::lonxml::debug("Got $status");
363: if (( $status eq 'CLOSED' ) ||
364: ( $status eq 'UNCHECKEDOUT') ||
365: ( $status eq 'BANNED') ||
1.200.2.4! albertel 366: ( $status eq 'UNAVAILABLE') ||
! 367: ( $status eq 'INVALID_ACCESS')) {
1.159 albertel 368: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser);
369: if ( $target eq "web" ) {
370: $result.= $head_tag_start.'</head>';
371: my $msg=$body_tag_start;
372: if ($status eq 'UNAVAILABLE') {
373: $result.='<h1>Unable to determine if this resource is open due to network problems. Please try again later.</h1>';
374: } else {
375: $result.='<h1>Not open to be viewed</h1>';
376: }
1.200.2.4! albertel 377: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.159 albertel 378: $msg.='The problem '.$accessmsg;
379: } elsif ($status eq 'UNCHECKEDOUT') {
380: $msg.=&checkout_msg;
381: }
382: $result.=$msg.'<br />';
383: } elsif ($target eq 'tex') {
384: $result.='\begin{document}\noindent \vskip 1 mm \begin{minipage}{\textwidth}\vskip 0 mm';
385: if ($status eq 'UNAVAILABLE') {
386: $result.='Unable to determine if this resource is open due to network problems. Please try again later.\vskip 0 mm ';
387: } else {
388: $result.="Problem is not open to be viewed. It $accessmsg \\vskip 0 mm ";
389: }
390: }
391: } elsif ($target eq 'web') {
392: my $name= &get_resource_name($parstack,$safeeval);
393: if ($status eq 'CAN_ANSWER') {
394: # create a page header and exit
395: $result.="$head_tag_start<title>$name</title></head>
1.158 sakharuk 396: $body_tag_start \n $form_tag_start".
1.159 albertel 397: '<input type="hidden" name="submitted" value="yes" />';
398: if ($ENV{'request.state'} eq "construct") {
1.187 albertel 399: $result.= &problem_web_to_edit_header($ENV{'form.rndseed'});
1.159 albertel 400: }
401: # if we are viewing someone else preserve that info
402: if (defined $ENV{'form.grade_symb'}) {
403: foreach my $field ('symb','courseid','domain','username') {
404: $result .= '<input type="hidden" name="grade_'.$field.
405: '" value="'.$ENV{"form.grade_$field"}.'" />'."\n";
406: }
407: }
408: } elsif ($status eq 'SHOW_ANSWER' || $status eq 'CANNOT_ANSWER'
1.200.2.4! albertel 409: || $status eq 'CLOSED' || $status eq 'UNAVALAILABLE' ||
! 410: $status eq 'INVALID_ACCESS') {
1.159 albertel 411: $result.=$head_tag_start.
412: "<title>$name</title></head>\n$body_tag_start\n";
413: }
414: } elsif ($target eq 'tex') {
1.192 sakharuk 415: my $startminipage = '';
1.191 sakharuk 416: if (not $ENV{'form.problem_split'}=~/yes/) {
1.192 sakharuk 417: $startminipage = '\begin{minipage}{\textwidth}';
1.178 sakharuk 418: }
1.159 albertel 419: my $name= &Apache::lonxml::get_param('name',$parstack,$safeeval);
420: if ($name eq '') {
421: $name=&Apache::lonnet::EXT('resource.title');
422: if ($name eq 'con_lost') { $name = ''; }
423: }
424: $Apache::lonhomework::name=$name;
425: my $id = $Apache::inputtags::part;
426: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
427: my $allkeys=&Apache::lonnet::metadata($ENV{'request.uri'},'keys');
428: my @allkeys = split /,/,$allkeys;
429: my $allow_print_points = 0;
430: foreach my $partial_key (@allkeys) {
431: if ($partial_key=~m/weight/) {
432: $allow_print_points++;
433: }
434: }
435: my $duedate = &Apache::lonnet::EXT("resource.$id.duedate");
436: $duedate = POSIX::strftime("%c",localtime($duedate));
437: my $temp_file;
438: my $filename = "/home/httpd/prtspool/$ENV{'user.name'}_$ENV{'user.domain'}_printout.due";
439: if (-e $filename) {
440: $temp_file = Apache::File->new($filename);
441: } else {
442: $temp_file = Apache::File->new('>>'.$filename);
443: }
444: my @due_file_content = <$temp_file>;
445: my $due_file_content = $due_file_content[$#due_file_content];
446: chomp $due_file_content;
447: my $name_of_resourse= &get_resource_name($parstack,$safeeval);
448: if ($due_file_content ne $duedate) {
449: $temp_file = Apache::File->new('>'.$filename);
450: print $temp_file "$duedate\n";
451: if (not $ENV{'request.symb'} =~ m/\.page_/) {
452: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
1.178 sakharuk 453: $result .= '\begin{document} \typeout{STAMPOFPASSEDRESOURCESTART Resource <h2>"'.$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;
1.159 albertel 454: } else {
1.178 sakharuk 455: $result .= '\begin{document} \typeout{STAMPOFPASSEDRESOURCESTART Resource <h2>"'.$name_of_resourse.'"</h2> located in <br /><small><b>'.$ENV{'request.uri'}.'</b></small><br /> STAMPOFPASSEDRESOURCEEND} \noindent \vskip 1 mm \noindent'.$startminipage;
1.159 albertel 456: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
457: }
1.104 sakharuk 458: } else {
1.159 albertel 459: $result .= '\vskip 1mm\textit{Due date: '.$duedate.'} \\\\\\\\';
1.104 sakharuk 460: }
1.101 sakharuk 461: } else {
1.159 albertel 462: if (not $ENV{'request.symb'} =~ m/\.page_/) {
1.178 sakharuk 463: $result .= '\begin{document} \typeout{STAMPOFPASSEDRESOURCESTART Resource <h2>"'.$name_of_resourse.'"</h2> located in <br /><small><b>'.$ENV{'request.uri'}.'</b></small><br /> STAMPOFPASSEDRESOURCEEND} \noindent \vskip 1 mm\noindent'.$startminipage;
1.159 albertel 464: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
465: } else {
466: $result .= '\vskip 1mm \\\\\\\\';
467: }
468: }
1.99 sakharuk 469: }
1.159 albertel 470: } elsif ($target eq 'edit') {
471: $result.=$head_tag_start."</head>".$body_tag_start.$form_tag_start.
472: &problem_edit_header();
473: my $temp=&Apache::edit::insertlist($target,$token);
474: $result.=$temp;
475: } elsif ($target eq 'modified') {
476: $result=$token->[4];
477: $result.=&Apache::edit::handle_insert();
478: } else {
479: # page_start returned a starting result, delete it if we don't need it
480: $result = '';
1.99 sakharuk 481: }
1.159 albertel 482: return $result;
1.9 albertel 483: }
484:
485: sub end_problem {
1.159 albertel 486: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
487: my $result='';
488: my $status=$Apache::inputtags::status['-1'];
489: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
490: $target eq 'tex') {
491: if ( $target eq 'grade' && $Apache::inputtags::part eq '0' &&
492: $status eq 'CAN_ANSWER' ) {
493: # if part is zero, no <part>s existed, so we need to the grading
494: &Apache::inputtags::grade;
495: } elsif ( ($target eq 'web' || $target eq 'tex') &&
496: $Apache::inputtags::part eq '0' &&
497: $status ne 'UNCHECKEDOUT') {
498: # if part is zero, no <part>s existed, so we need show the current
499: # grading status
500: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
501: $result.= $gradestatus;
502: }
503: if (
504: (($target eq 'web') && ($ENV{'request.state'} ne 'construct')) ||
505: ($target eq 'answer') || ($target eq 'tex')
506: ) {
507: if ($status eq 'CAN_ANSWER') {
1.172 albertel 508: if ($target ne 'tex' &&
509: $ENV{'form.answer_output_mode'} ne 'tex') {
510: $result.="</form></body>\n";
1.159 albertel 511: }
512: } elsif ($status eq 'SHOW_ANSWER' || $status eq 'CANNOT_ANSWER' ||
1.200.2.4! albertel 513: $status eq 'UNCHECKEDOUT' || $status eq 'INVALID_ACCESS') {
1.189 sakharuk 514: if ($target ne 'tex' &&
515: $ENV{'form.answer_output_mode'} ne 'tex') {
1.159 albertel 516: $result.="</body>\n";
517: }
518: }
519: if ($target eq 'web') {
520: $result.=&Apache::lonxml::xmlend();
521: } elsif ($target eq 'tex') {
1.178 sakharuk 522: my $endminipage = '';
1.191 sakharuk 523: if (not $ENV{'form.problem_split'}=~/yes/) {
1.178 sakharuk 524: $endminipage = '\end{minipage}';
525: }
1.174 sakharuk 526: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.159 albertel 527: if (not $ENV{'request.symb'} =~ m/\.page_/) {
1.178 sakharuk 528: $result .= $endminipage.'\end{document} ';
1.159 albertel 529: } else {
530: $result .= '';
531: }
532: }
533: }
534: if ($target eq 'grade') {
535: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
536: &finalize_storage();
537: }
1.172 albertel 538: if ($target eq 'answer' && ($ENV{'request.state'} eq 'construct')
1.173 albertel 539: && $ENV{'form.answer_output_mode'} ne 'tex') {
1.172 albertel 540: $result.='</html>'; # normally we get it from xmlend, but in CSTR
541: # we always show answer mode too.
1.159 albertel 542: }
543: } elsif ($target eq 'meta') {
544: if ($Apache::inputtags::part eq '0') {
1.179 albertel 545: @Apache::inputtags::response=();
1.159 albertel 546: $result=&Apache::response::mandatory_part_meta;
547: }
548: } elsif ($target eq 'edit') {
549: &Apache::lonxml::debug("in end_problem with $target, edit");
550: $result = &problem_edit_footer();
551: }
1.155 albertel 552:
1.177 albertel 553: if ($ENV{'request.state'} eq 'construct' && $target eq 'web') {
554: &Apache::inputtags::check_for_duplicate_ids();
555: }
1.159 albertel 556: undef(%Apache::lonhomework::history);
557: undef(%Apache::lonhomework::results);
558: undef($Apache::inputtags::part);
559: undef($Apache::lonhomework::parsing_a_problem);
560:
561: return $result;
1.48 albertel 562: }
563:
1.108 albertel 564:
1.48 albertel 565: sub start_library {
1.159 albertel 566: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
567: my ($result,$head_tag_start,$body_tag_start,$form_tag_start);
1.109 albertel 568:
1.159 albertel 569: if ($target eq 'edit') {
570: ($result,$head_tag_start,$body_tag_start,$form_tag_start)=
571: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
572: $result.=$head_tag_start."</head>".$body_tag_start.$form_tag_start.
573: &problem_edit_header();
574: my $temp=&Apache::edit::insertlist($target,$token);
575: $result.=$temp;
576: } elsif ($target eq 'modified') {
577: $result=$token->[4];
578: $result.=&Apache::edit::handle_insert();
579: } elsif ($target eq 'web' && $$tagstack[0] ne 'problem' &&
580: $ENV{'request.state'} eq "construct" ) {
581: ($result,$head_tag_start,$body_tag_start,$form_tag_start)=
582: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
583: my $name=&get_resource_name($parstack,$safeeval);
584: my $rndseed=&setup_rndseed($safeeval);
585: $result.="$head_tag_start<title>$name</title></head>
1.105 albertel 586: $body_tag_start \n $form_tag_start".
1.159 albertel 587: '<input type="hidden" name="submitted" value="yes" />';
588: $result.=&problem_web_to_edit_header($rndseed);
589: }
590: return $result;
1.48 albertel 591: }
592:
593: sub end_library {
1.159 albertel 594: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
595: my $result='';
596: if ($target eq 'edit') {
597: $result=&problem_edit_footer();
598: } elsif ($target eq 'web' && $$tagstack[0] ne 'problem' &&
599: $ENV{'request.state'} eq "construct") {
600: $result.='</form></body>'.&Apache::lonxml::xmlend();
601: }
602: return $result;
1.197 www 603: }
604:
605: sub start_definetag {
606: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
607:
608: my $result;
609:
610: my $name = $token->[2]->{'name'};
611: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser);
612: if ($name=~/^\//) {
613: $result=
614: '<br /><table bgcolor="#FFBBBB"><tr><th>END <tt>'.$name.'</tt></th></tr>';
615: } else {
616: $result=
617: '<br /><table bgcolor="#BBFFBB"><tr><th>BEGIN <tt>'.$name.'</tt></th></tr>';
618: }
619: $skip=~s/\</\<\;/gs;
620: $skip=~s/\>/\>\;/gs;
621: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
622: return $result;
623: }
624:
625: sub end_definetag {
626: return '';
1.1 albertel 627: }
628:
629: sub start_block {
1.131 albertel 630: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
631:
632: my $result;
1.1 albertel 633:
1.160 albertel 634: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.131 albertel 635: $target eq 'tex' || $target eq 'analyze') {
1.159 albertel 636: my $code = $token->[2]->{'condition'};
1.131 albertel 637: if ($code) {
1.137 albertel 638: if (!$Apache::lonxml::default_homework_loaded) {
639: &Apache::lonxml::default_homework_load($safeeval);
640: }
1.131 albertel 641: $result = &Apache::run::run($code,$safeeval);
642: &Apache::lonxml::debug("block :$code: returned :$result:");
643: } else {
644: $result='1';
645: }
646: if ( ! $result ) {
1.146 albertel 647: my $skip=&Apache::lonxml::get_all_text("/block",$parser);
1.131 albertel 648: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
649: }
650: $result='';
651: } elsif ($target eq 'edit') {
652: $result .=&Apache::edit::tag_start($target,$token);
653: $result .=&Apache::edit::text_arg('Test Condition:','condition',
654: $token,40);
655: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
656: } elsif ($target eq 'modified') {
657: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
658: $safeeval,'condition');
659: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 660: }
1.131 albertel 661: return $result;
1.1 albertel 662: }
663:
664: sub end_block {
1.167 www 665: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
666: my $result;
667: if ($target eq "edit") {
668: $result.= &Apache::edit::tag_end($target,$token,'');
669: }
670: return $result;
671: }
672:
673: sub start_languageblock {
674: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
675:
676: my $result;
677:
678: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
679: $target eq 'tex' || $target eq 'analyze') {
1.186 albertel 680: &Apache::lonxml::startredirection();
1.167 www 681: } elsif ($target eq 'edit') {
682: $result .=&Apache::edit::tag_start($target,$token);
683: $result .=&Apache::edit::text_arg('Include Language:','include',
684: $token,40);
685: $result .=&Apache::edit::text_arg('Exclude Language:','exclude',
686: $token,40);
687: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
688: } elsif ($target eq 'modified') {
689: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 690: $safeeval,'include',
691: 'exclude');
1.167 www 692: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
693: }
694: return $result;
695: }
696:
697: sub end_languageblock {
1.170 www 698: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
699: my $result;
1.186 albertel 700:
701: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
702: $target eq 'tex' || $target eq 'analyze') {
703: my $text=&Apache::lonxml::endredirection();
704: my $include= &Apache::lonxml::get_param('include',$parstack,$safeeval);
705: my $exclude= &Apache::lonxml::get_param('exclude',$parstack,$safeeval);
706: my %languages=&Apache::loncommon::display_languages();
707: $result='1';
708: if ($include) {
709: $result='';
710: foreach (split(/\,/,$include)) {
711: if ($languages{$_}) { $result='1'; }
712: }
713: }
714: if ($exclude) {
715: foreach (split(/\,/,$exclude)) {
716: if ($languages{$_}) { $result='0'; }
717: }
718: }
719: if ( ! $result ) {
720: $result='';
721: } else {
722: $result=$text;
723: }
724: } elsif ($target eq "edit") {
1.170 www 725: $result.= &Apache::edit::tag_end($target,$token,'');
726: }
727: return $result;
728: }
729:
730: sub start_instructorcomment {
731: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
732:
733: my $result;
734:
735: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
736: $target eq 'tex' || $target eq 'analyze') {
737: $result=($ENV{'request.role'}=~/^(in|cc|au|ca|li)/);
738: if ( ! $result ) {
739: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",$parser);
740: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
741: }
742: $result='';
743: } elsif ($target eq 'edit') {
744: $result .=&Apache::edit::tag_start($target,$token);
745: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
746: }
747: return $result;
748: }
749:
750: sub end_instructorcomment {
1.159 albertel 751: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 752: my $result;
753: if ($target eq "edit") {
754: $result.= &Apache::edit::tag_end($target,$token,'');
755: }
756: return $result;
1.4 tsai 757: }
758:
759: sub start_while {
1.159 albertel 760: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
761:
1.160 albertel 762: my $result;
1.161 albertel 763: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.160 albertel 764: $target eq 'tex' || $target eq 'analyze') {
765: my $code = $token->[2]->{'condition'};
1.4 tsai 766:
1.160 albertel 767: push( @Apache::structuretags::whileconds, $code);
768: if (!$Apache::lonxml::default_homework_loaded) {
769: &Apache::lonxml::default_homework_load($safeeval);
770: }
771: my $result = &Apache::run::run($code,$safeeval);
1.161 albertel 772: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser);
1.160 albertel 773: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 774: push( @Apache::structuretags::whileline, $token->[5]);
775: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 776: if ( $result ) {
777: &Apache::lonxml::newparser($parser,\$bodytext);
778: }
779: } elsif ($target eq 'edit') {
780: $result .=&Apache::edit::tag_start($target,$token);
781: $result .=&Apache::edit::text_arg('Test Condition:','condition',
782: $token,40);
783: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
784: } elsif ($target eq 'modified') {
785: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
786: $safeeval,'condition');
787: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 788: }
1.160 albertel 789: return $result;
1.4 tsai 790: }
791:
792: sub end_while {
1.159 albertel 793: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 794: my $result;
795:
796: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
797: $target eq 'tex' || $target eq 'analyze') {
798: my $code = pop(@Apache::structuretags::whileconds);
799: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 800: my $line = pop(@Apache::structuretags::whileline);
801: my $return = &Apache::run::run($code,$safeeval);
802: my $starttime=time;
803: my $error=0;
804: while ($return) {
805: if (time-$starttime >
806: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
807: $return = 0; $error=1; next;
808: }
809: $result.=&Apache::scripttag::xmlparse($bodytext);
810: $return = &Apache::run::run($code,$safeeval);
811: }
812: if ($error) {
813: &Apache::lonxml::error('<pre>Code ran too long. It ran for more than '.$Apache::lonnet::perlvar{'lonScriptTimeout'}.' seconds occured while running <while$gt; on line '.$line.'</pre>');
1.160 albertel 814: }
815: } elsif ($target eq "edit") {
816: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 817: }
1.160 albertel 818: return $result;
1.1 albertel 819: }
1.6 tsai 820:
1.160 albertel 821: # <randomlist show="1">
1.6 tsai 822: # <tag1>..</tag1>
823: # <tag2>..</tag2>
824: # <tag3>..</tag3>
1.160 albertel 825: # ...
1.6 tsai 826: # </randomlist>
827: sub start_randomlist {
1.159 albertel 828: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
829: my $result;
830: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
831: $target eq 'tex' || $target eq 'analyze') {
832: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
833: my $b_parser= HTML::TokeParser->new(\$body);
834: my $b_tok;
835: my @randomlist;
836: my $list_item;
837: while($b_tok = $b_parser->get_token() ) {
838: if($b_tok->[0] eq 'S') { # start tag
839: # get content of the tag until matching end tag
840: # get all text upto the matching tag
841: # and push the content into @randomlist
842: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
843: $b_parser);
844: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
845: push(@randomlist,$list_item);
846: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
847: # $list_item</b>";
848: }
849: if($b_tok->[0] eq 'T') { # text
850: # what to do with text in between tags?
851: # print "<b>TEXT $b_tok->[1]</b><br />";
852: }
853: # if($b_tok->[0] eq 'E') { # end tag, should not happen
854: # print "<b>END-TAG $b_tok->[1]</b><br />";
855: # }
856: }
857: my @idx_arr = (0 .. $#randomlist);
858: &Apache::structuretags::shuffle(\@idx_arr);
859: my $bodytext = '';
860: my $show=$#randomlist;
861: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
862: $showarg--;
863: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
864: for(0 .. $show) {
865: $bodytext .= "$randomlist[ $idx_arr[$_] ]";
866: }
867: &Apache::lonxml::newparser($parser,\$bodytext);
868: } elsif ($target eq 'edit' ) {
869: $result .=&Apache::edit::tag_start($target,$token);
870: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
871: $token,5);
872: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
873: } elsif ($target eq 'modified' ) {
874: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
875: $safeeval,'show');
876: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
877: }
878: return $result;
1.7 tsai 879: }
880:
881: sub shuffle {
882: my $a=shift;
883: my $i;
1.70 albertel 884: if (defined(@$a)) {
1.159 albertel 885: &Apache::response::setrandomnumber();
886: for($i=@$a;--$i;) {
887: my $j=int(&Math::Random::random_uniform() * ($i+1));
888: next if $i == $j;
889: @$a[$i,$j] = @$a[$j,$i];
890: }
1.7 tsai 891: }
1.6 tsai 892: }
893:
894: sub end_randomlist {
1.159 albertel 895: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
896: my $result;
897: if ($target eq 'edit' ) {
898: $result=&Apache::edit::tag_end($target,$token,
899: 'End Randomly Parsed Block');
900: }
901: return $result;
1.6 tsai 902: }
903:
1.11 albertel 904: sub start_part {
1.159 albertel 905: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
906: my $result='';
907: my $id= &Apache::lonxml::get_param('id',$parstack,$safeeval);
908: if ($id eq '') { $id = $Apache::lonxml::curdepth; }
909: $Apache::inputtags::part=$id;
1.177 albertel 910: push(@Apache::inputtags::partlist,$id);
911: @Apache::inputtags::response=();
1.159 albertel 912: @Apache::inputtags::previous=();
913: @Apache::inputtags::previous_version=();
1.169 albertel 914: $Apache::lonhomework::problemstatus=
915: &Apache::lonnet::EXT("resource.$id.problemstatus");
1.159 albertel 916: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
917:
918: if ($target eq 'meta') {
919: return &Apache::response::mandatory_part_meta;
920: } elsif ($target eq 'web' || $target eq 'grade' ||
921: $target eq 'answer' || $target eq 'tex') {
922: if ($hidden) {
923: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser);
924: } else {
925: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
926: push (@Apache::inputtags::status,$status);
927: my $expression='$external::datestatus="'.$status.'";';
928: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
929: &Apache::run::run($expression,$safeeval);
1.200.2.4! albertel 930: if (( $status eq 'CLOSED' ) ||
! 931: ( $status eq 'UNCHECKEDOUT') ||
! 932: ( $status eq 'BANNED') ||
! 933: ( $status eq 'UNAVAILABLE') ||
! 934: ( $status eq 'INVALID_ACCESS')) {
1.159 albertel 935: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser);
936: if ( $target eq "web" ) {
937: $result="<br />Part is not open to be viewed. It $accessmsg<br />";
938: } elsif ( $target eq 'tex' ) {
1.195 sakharuk 939: if (not $ENV{'form.problem_split'}=~/yes/) {
940: $result="\\end{minipage}\\vskip 0 mm Part is not open to be viewed. It $accessmsg \\\\\\begin{minipage}{\\textwidth}";
941: } else {
942: $result="\\vskip 0 mm Part is not open to be viewed. It $accessmsg \\\\";
943: }
1.159 albertel 944: }
945: } else {
946: if ($target eq 'tex') {
1.195 sakharuk 947: if (not $ENV{'form.problem_split'}=~/yes/) {
948: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
949: }
1.159 albertel 950: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
951: if ($Apache::lonhomework::type eq 'exam') { $result .= '\fbox{\textit{'.$weight.' pt}}';}
952: }
953: }
954: }
955: } elsif ($target eq 'edit') {
956: $result.=&Apache::edit::tag_start($target,$token);
957: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
958: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
959: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
960: } elsif ($target eq 'modified') {
961: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
962: $safeeval,'id');
963: if ($constructtag) {
964: $result = &Apache::edit::rebuild_tag($token);
965: $result.=&Apache::edit::handle_insert();
966: }
967: }
968: return $result;
1.11 albertel 969: }
970:
971: sub end_part {
1.159 albertel 972: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
973: &Apache::lonxml::debug("in end_part $target ");
974: my $status=$Apache::inputtags::status['-1'];
975: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
976: my $result='';
977: if ( $target eq 'meta' ) {
978: $result='';
979: } elsif ( $target eq 'grade' && $status eq 'CAN_ANSWER' && !$hidden) {
980: $result=&Apache::inputtags::grade;
981: } elsif (($target eq 'web' || $target eq 'tex') && !$hidden ) {
982: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
983: $target);
1.200.2.2 albertel 984: if ($Apache::lonhomework::type eq 'exam' && $target eq 'tex') {
985: $gradestatus='';
986: }
1.159 albertel 987: $result=$gradestatus;
1.181 albertel 988: } elsif ($target eq 'edit') {
989: $result=&Apache::edit::end_table();
1.159 albertel 990: }
991: pop @Apache::inputtags::status;
992: $Apache::inputtags::part='';
993: return $result;
1.11 albertel 994: }
1.1 albertel 995:
1.25 albertel 996: sub start_preduedate {
1.159 albertel 997: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
998: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' || $target eq 'tex') {
999: if ($Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1000: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER' &&
1001: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER') {
1002: &Apache::lonxml::get_all_text("/preduedate",$parser);
1003: }
1.24 albertel 1004: }
1.159 albertel 1005: return '';
1.24 albertel 1006: }
1007:
1.25 albertel 1008: sub end_preduedate {
1.159 albertel 1009: return '';
1.24 albertel 1010: }
1011:
1.25 albertel 1012: sub start_postanswerdate {
1.159 albertel 1013: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1014: if ($target eq 'web' || $target eq 'grade' || $target eq 'tex') {
1015: if ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER') {
1016: &Apache::lonxml::get_all_text("/postanswerdate",$parser);
1017: }
1018: } elsif ($target eq 'tex') {
1019: return '\vskip 0 mm \noindent';
1020: }
1021: return '';
1.24 albertel 1022: }
1023:
1.25 albertel 1024: sub end_postanswerdate {
1.159 albertel 1025: return '';
1.24 albertel 1026: }
1027:
1.25 albertel 1028: sub start_notsolved {
1.159 albertel 1029: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1030: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1031: $target eq 'tex') {
1032: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1033: &Apache::lonxml::debug("not solved has :$gradestatus:");
1034: if ($gradestatus =~ /^correct/) {
1035: &Apache::lonxml::debug("skipping");
1036: &Apache::lonxml::get_all_text("/notsolved",$parser);
1037: }
1.24 albertel 1038: }
1.159 albertel 1039: return '';
1.24 albertel 1040: }
1041:
1.25 albertel 1042: sub end_notsolved {
1.159 albertel 1043: return '';
1.24 albertel 1044: }
1045:
1046: sub start_solved {
1.159 albertel 1047: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1048: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1049: $target eq 'tex') {
1050: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1051: if ($gradestatus !~ /^correct/) {
1052: &Apache::lonxml::get_all_text("/solved",$parser);
1053: }
1.24 albertel 1054: }
1.159 albertel 1055: return '';
1.24 albertel 1056: }
1057:
1058: sub end_solved {
1.159 albertel 1059: return '';
1.24 albertel 1060: }
1.34 albertel 1061:
1062: sub start_startouttext {
1.159 albertel 1063: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1064: my @result=(''.'');
1065: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1066: return (@result);
1.34 albertel 1067: }
1.159 albertel 1068:
1.34 albertel 1069: sub end_startouttext {
1.159 albertel 1070: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1071: my $result='';
1072: my $text='';
1073:
1074: if ($target eq 'edit') {
1075: $text=&Apache::lonxml::get_all_text("endouttext",$parser);
1076: $result.=&Apache::edit::start_table($token)."<tr><td>Text Block</td>
1.42 albertel 1077: <td>Delete:".
1.159 albertel 1078: &Apache::edit::deletelist($target,$token)
1079: ."</td>
1.42 albertel 1080: <td>".
1.159 albertel 1081: &Apache::edit::insertlist($target,$token).
1082: &Apache::edit::end_row().
1083: &Apache::edit::start_spanning_row()."\n"
1.188 bowersj2 1084: . &Apache::loncommon::helpLatexCheatsheet () .
1.159 albertel 1085: &Apache::edit::editfield($token->[1],$text,"",80,4);
1086: }
1087: if ($target eq 'modified') {
1088: $text=&Apache::lonxml::get_all_text("endouttext",$parser);
1089: $result='<startouttext />'.&Apache::edit::modifiedfield();
1090: }
1091: if ($target eq 'tex') {
1092: $result .= '\noindent ';
1093: }
1094: return $result;
1.34 albertel 1095: }
1.159 albertel 1096:
1.34 albertel 1097: sub start_endouttext {
1.159 albertel 1098: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1099: my $result='';
1100: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
1101: if ($target eq "modified") {
1102: $result='<endouttext />'.
1103: &Apache::edit::handle_insertafter('startouttext'); }
1104: return $result;
1.34 albertel 1105: }
1.159 albertel 1106:
1.34 albertel 1107: sub end_endouttext {
1.159 albertel 1108: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1109: my @result=('','');
1110: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
1111: return (@result);
1.34 albertel 1112: }
1.159 albertel 1113:
1.45 albertel 1114: sub delete_startouttext {
1.159 albertel 1115: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1116: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser);
1117: my $text=$$parser['-1']->get_text("/endouttext");
1118: my $ntoken=$$parser['-1']->get_token();
1119: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
1120: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
1121: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
1122: # they did the last time round
1123: &Apache::lonxml::increasedepth($ntoken);
1124: &Apache::lonxml::decreasedepth($ntoken);
1125: return 1;
1.193 www 1126: }
1127:
1128: sub start_simpleeditbutton {
1129: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1130: my $result='';
1131: if (($target eq 'web') &&
1132: (&Apache::lonnet::allowed('srm',$ENV{'request.course.id'}))) {
1133: my $url=$ENV{'REQUEST_URI'};
1134: $url=~s/\?.*$//;
1.194 www 1135: $result='<table width="100%" bgcolor="#FFFFAA" border="2"><tr><td>'.
1.196 www 1136: '<a href="'.$url.'/smpedit">Simple Problem Editor</a> - Note: it can take up to 10 minutes for changes to take effect for all users.'.
1137: &Apache::loncommon::help_open_topic('Caching').'</td></tr></table><br />';
1.193 www 1138: }
1139: return $result;
1140: }
1141:
1142: sub end_simpleeditbutton {
1143: return '';
1.45 albertel 1144: }
1.34 albertel 1145:
1.1 albertel 1146: 1;
1147: __END__
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