Annotation of loncom/homework/structuretags.pm, revision 1.197
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.197 ! www 4: # $Id: structuretags.pm,v 1.196 2003/07/16 19:36:02 www 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)=@_;
1.182 albertel 47: if (!($target eq 'web' || $target eq 'edit' || $target eq 'modified' ||
48: $target eq 'answer' || $target eq 'grade' || $target eq 'meta' )) {
49: my $bodytext=&Apache::lonxml::get_all_text("/web",$parser);
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)=@_;
1.182 albertel 60: if (!($target eq 'tex' || $target eq 'edit' || $target eq 'modified' ||
61: $target eq 'answer' || $target eq 'grade' || $target eq 'meta' )) {
62: &Apache::lonxml::debug("tex 1");
63: my $bodytext=&Apache::lonxml::get_all_text("/tex",$parser);
1.159 albertel 64: }
65: return '';
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;
75: foreach my $taginside ($tagstack) {
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: $safeeval);
94: if ($background) {
95: $Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=
96: $background;
97: $body_tag_start.='background="'.$background.'" ';
98: } else {
99: my $bgcolor=&Apache::lonxml::get_param('bgcolor',$parstack,
100: $safeeval);
101: if ($bgcolor) {
102: $body_tag_start.='bgcolor="'.$bgcolor.'" ';
103: } else {
104: $body_tag_start.='bgcolor="#ffffff"';
105: }
106: }
107: $body_tag_start.='>'.&Apache::lonmenu::menubuttons(undef,$target,1);
108: if ($target eq 'web' && $ENV{'request.state'} ne 'construct') {
1.165 albertel 109: my ($symb,undef,undef,undef,$publicuser)=
110: &Apache::lonxml::whichuser();
111: if ($symb eq '' && !$publicuser) {
1.159 albertel 112: my $help = &Apache::loncommon::help_open_topic("Ambiguous_Reference");
1.162 albertel 113: $help="Browsing resource, all submissions are temporary.<br />";
1.159 albertel 114: $body_tag_start.=$help;
115: }
116: }
117: }
118: my $form_tag_start;
119: if (!defined($found{'form'})) {
120: $form_tag_start='<form name="lonhomework" method="POST" action="'.
121: $ENV{'request.uri'}.'">';
122: }
123: return ($result,$head_tag_start,$body_tag_start,$form_tag_start);
1.105 albertel 124: }
125:
1.141 matthew 126: #use Time::HiRes();
1.105 albertel 127: sub get_resource_name {
1.159 albertel 128: my ($parstack,$safeeval)=@_;
129: my $name=&Apache::lonnet::gettitle();
130: if ($name eq '') {
131: $name=&Apache::lonnet::EXT('resource.title');
132: if ($name eq 'con_lost') { $name = ''; }
133: }
134: $Apache::lonhomework::name=$name;
135: return $name;
1.105 albertel 136: }
137:
138: sub setup_rndseed {
1.159 albertel 139: my ($safeeval)=@_;
140: my $rndseed;
1.162 albertel 141: my ($symb)=&Apache::lonxml::whichuser();
142: if ($ENV{'request.state'} eq "construct" || $symb eq '') {
1.159 albertel 143: $rndseed=$ENV{'form.rndseed'};
144: if (!$rndseed) {
1.162 albertel 145: $rndseed=$Apache::lonhomework::history{'rndseed'};
146: if (!$rndseed) {
147: $rndseed=time;
148: $ENV{'form.rndseed'}=$rndseed;
149: }
150: }
1.175 albertel 151: if ($ENV{'form.resetdata'} eq 'New Problem Variation' ||
152: $ENV{'form.newrandomization'} eq 'New Randomization') {
1.190 albertel 153: srand(time);
154: $rndseed=int(rand(2100000000));
1.159 albertel 155: $ENV{'form.rndseed'}=$rndseed;
1.180 albertel 156: delete($ENV{'form.resetdata'});
157: delete($ENV{'form.newrandomization'});
1.159 albertel 158: }
1.187 albertel 159: if (defined($rndseed) && $rndseed ne int($rndseed)) {
160: $rndseed=join(',',&Math::Random::random_seed_from_phrase($rndseed));
161: }
1.159 albertel 162: &Apache::lonxml::debug("Setting rndseed to $rndseed");
163: &Apache::run::run('$external::randomseed='.$rndseed.';',$safeeval);
164: }
165: return $rndseed;
1.105 albertel 166: }
167:
168: sub problem_edit_header {
1.159 albertel 169: return '<input type="hidden" name="submitted" value="edit" />
1.105 albertel 170: <input type="hidden" name="problemmode" value="Edit" />
171: <input type="submit" name="problemmode" value="Discard Edits and View" />
172: <input type="submit" name="problemmode" value="EditXML" />
173: <input type="submit" name="Undo" value="undo" /> <hr />
1.135 www 174: <input type="submit" name="submit" value="Submit Changes and Edit" />
175: <input type="submit" name="submit" value="Submit Changes and View" /><br /><p> </p><table border="0"><tr><td bgcolor="#DDDDDD">
1.105 albertel 176: ';
177: }
178:
179: sub problem_edit_footer {
1.159 albertel 180: return '</td></tr></table><br /><input type="submit" name="submit" value="Submit Changes and Edit" />
1.105 albertel 181: <input type="submit" name="submit" value="Submit Changes and View" />';
182: }
183:
184: sub problem_web_to_edit_header {
1.159 albertel 185: my ($rndseed)=@_;
186: my $result.='<input type="hidden" name="problemmode" value="View" />
1.105 albertel 187: <input type="submit" name="problemmode" value="Edit" />
188: <input type="submit" name="problemmode" value="EditXML" />
1.175 albertel 189: <input type="submit" name="newrandomization" value="New Randomization" />
1.105 albertel 190: <input type="submit" name="resetdata" value="Reset Submissions" />
1.175 albertel 191: <nobr><input type="submit" name="changerandseed" value="Change Random Seed To:" />
192: <input type="text" name="rndseed" width="10" value="'.
193: $rndseed.'"
194: onChange="javascript:document.lonhomework.changerandseed.click()" /></nobr>
1.105 albertel 195: <input type="checkbox" name="showallfoils" ';
1.159 albertel 196: if (defined($ENV{'form.showallfoils'})) { $result.='checked="on"'; }
197: $result.= ' /> Show All Foils
1.105 albertel 198: <hr />';
1.159 albertel 199: my $numtoanalyze=$ENV{'form.numtoanalyze'};
1.176 albertel 200: if (!$numtoanalyze) { $numtoanalyze=20; }
201: $result.= '<input type="submit" name="problemmode" value="Calculate answers" /> for
1.136 albertel 202: <input type="text" name="numtoanalyze" value="'.
1.176 albertel 203: $numtoanalyze.'" size="5" /> versions of this problem.'.
204: &Apache::loncommon::help_open_topic("Analyze_Problem",
205: '',undef,undef,300).
206: '<hr />';
1.159 albertel 207: return $result;
1.48 albertel 208: }
209:
1.65 albertel 210: sub initialize_storage {
1.159 albertel 211: %Apache::lonhomework::results=();
1.162 albertel 212: %Apache::lonhomework::history=();
1.159 albertel 213: my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser();
1.162 albertel 214: if ($ENV{'request.state'} eq 'construct' || $symb eq '') {
1.159 albertel 215: %Apache::lonhomework::history=
216: &Apache::lonnet::tmprestore($ENV{'request.uri'},'',$domain,$name);
217: my ($temp)=keys %Apache::lonhomework::history ;
218: &Apache::lonxml::debug("Return message of $temp");
219: } else {
220: %Apache::lonhomework::history=
221: &Apache::lonnet::restore($symb,$courseid,$domain,$name);
222: }
223: #ignore error conditions
1.67 albertel 224: my ($temp)=keys %Apache::lonhomework::history ;
1.159 albertel 225: if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); }
1.65 albertel 226: }
227:
228: # -------------------------------------------------------------finalize_storage
229: # Stores away the result has to a student's environment
230: # checks form.grade_ for specific values, other wises stores
231: # to the running users environment
232: sub finalize_storage {
1.159 albertel 233: my $result;
234: my ($temp) = keys %Apache::lonhomework::results;
235: if ( $temp ne '' ) {
236: my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser();
1.162 albertel 237: if ($ENV{'request.state'} eq 'construct' || $symb eq '') {
238: $Apache::lonhomework::results{'rndseed'}=$ENV{'form.rndseed'};
1.159 albertel 239: $result=&Apache::lonnet::tmpstore(\%Apache::lonhomework::results,
240: $ENV{'request.uri'},'',$domain,$name);
241: &Apache::lonxml::debug('Construct Store return message:'.$result);
242: } else {
243: $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,
244: $symb,$courseid,$domain,$name);
245: &Apache::lonxml::debug('Store return message:'.$result);
246: }
1.67 albertel 247: }
1.159 albertel 248: return $result;
1.65 albertel 249: }
250:
251: sub checkout_msg {
1.159 albertel 252: return (<<ENDCHECKOUT);
1.65 albertel 253: <h2>The resource needs to be checked out</h2>
254: As a resource gets checked out, a unique timestamped ID is given to it, and a
255: permanent record is left in the system.<p />
256: <font color=red>
257: Checking out resources is subject to course policies, and may exclude future
258: credit even if done erroneously.<p />
1.91 albertel 259: </font>
260: <form name="checkout" method="POST" action="$ENV{'request.uri'}">
261: <input type="hidden" name="doescheckout" value="yes" />
262: <input type="button" name="checkoutbutton" value="Check out Exam for Viewing" onClick="javascript:if (confirm('Check out Exam?')) { document.checkout.submit(); }" />
1.65 albertel 263: </form>
264: ENDCHECKOUT
265: }
266:
1.9 albertel 267: sub start_problem {
1.159 albertel 268: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.19 albertel 269:
1.184 albertel 270: if ( $Apache::inputtags::part ne '' ||
271: $Apache::lonhomework::parsing_a_problem) {
272: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
273: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser);
1.159 albertel 274: return '';
275: }
1.184 albertel 276:
277: $Apache::lonhomework::parsing_a_problem=1;
1.161 albertel 278: #initialize globals
1.159 albertel 279: $Apache::inputtags::part='0';
1.177 albertel 280: @Apache::inputtags::partlist=('0');
1.159 albertel 281: @Apache::inputtags::responselist = ();
1.177 albertel 282: @Apache::inputtags::importlist = ();
1.159 albertel 283: @Apache::inputtags::previous=();
284: @Apache::inputtags::previous_version=();
285: $Apache::structuretags::printanswer='No';
1.161 albertel 286: @Apache::structuretags::whileconds=();
287: @Apache::structuretags::whilebody=();
288: @Apache::structuretags::whileline=();
1.166 albertel 289: $Apache::lonhomework::scantronmode=0;
1.169 albertel 290: $Apache::lonhomework::problemstatus=
291: &Apache::lonnet::EXT('resource.0.problemstatus');
1.166 albertel 292:
293: if (defined($ENV{'scantron.maxquest'})) {
294: $Apache::lonhomework::scantronmode=1;
295: }
1.161 albertel 296:
1.159 albertel 297: if ($target ne 'analyze') {
298: &initialize_storage();
299: if ($target eq 'web') {
300: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
301: }
302: $Apache::lonhomework::type=&Apache::lonnet::EXT('resource.0.type');
303: &Apache::lonxml::debug("Found this to be of type :$Apache::lonhomework::type:");
304: }
1.164 albertel 305: if ($Apache::lonhomework::type eq '' ) {
1.159 albertel 306: my $uri=$ENV{'request.uri'};
307: if ($uri=~/\.(\w+)$/) {
308: $Apache::lonhomework::type=$1;
309: &Apache::lonxml::debug("Using type of $1");
310: } else {
311: $Apache::lonhomework::type='problem';
312: &Apache::lonxml::debug("Using default type, problem, :$uri:");
313: }
1.87 albertel 314: }
1.58 www 315:
1.159 albertel 316: #added vars to the scripting enviroment
317: my $expression='$external::part='.$Apache::inputtags::part.';';
1.24 albertel 318: &Apache::run::run($expression,$safeeval);
1.159 albertel 319: my $status;
320: my $accessmsg;
321:
322: #should get back a <html> or the neccesary stuff to start XML/MathML
323: my ($result,$head_tag_start,$body_tag_start,$form_tag_start)=
324: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
325: if ($target eq 'tex' and $ENV{'request.symb'} =~ m/\.page_/) {$result='';}
326:
327: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval); }
328: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
329: $target eq 'tex') {
330: #handle exam checkout
331: if ($Apache::lonhomework::type eq 'exam') {
332: my $token=
333: $Apache::lonhomework::history{"resource.0.outtoken"};
334: if (($ENV{'form.doescheckout'}) && (!$token)) {
335: $token=&Apache::lonxml::maketoken();
336: $Apache::lonhomework::history{"resource.0.outtoken"}=
337: $token;
338: }
339: $body_tag_start.=&Apache::lonxml::printtokenheader($target,$token);
1.142 albertel 340: }
1.159 albertel 341:
342: #handle rand seed in construction space
343: my $rndseed=&setup_rndseed($safeeval);
1.162 albertel 344: my ($symb)=&Apache::lonxml::whichuser();
1.163 albertel 345: if ($ENV{'request.state'} ne "construct" && $symb eq '') {
1.162 albertel 346: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
347: $rndseed.'" />'.
348: '<input type="submit" name="resetdata"
1.164 albertel 349: value="New Problem Variation" />'.
350: '<input type="hidden" name="username"
1.185 albertel 351: value="'.$ENV{'form.username'}.'" /> <br />';
1.162 albertel 352: }
1.159 albertel 353: ($status,$accessmsg) = &Apache::lonhomework::check_access('0');
354: push (@Apache::inputtags::status,$status);
355: my $expression='$external::datestatus="'.$status.'";';
356: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
357: &Apache::run::run($expression,$safeeval);
358: &Apache::lonxml::debug("Got $status");
359: if (( $status eq 'CLOSED' ) ||
360: ( $status eq 'UNCHECKEDOUT') ||
361: ( $status eq 'BANNED') ||
362: ( $status eq 'UNAVAILABLE')) {
363: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser);
364: if ( $target eq "web" ) {
365: $result.= $head_tag_start.'</head>';
366: my $msg=$body_tag_start;
367: if ($status eq 'UNAVAILABLE') {
368: $result.='<h1>Unable to determine if this resource is open due to network problems. Please try again later.</h1>';
369: } else {
370: $result.='<h1>Not open to be viewed</h1>';
371: }
372: if ($status eq 'CLOSED') {
373: $msg.='The problem '.$accessmsg;
374: } elsif ($status eq 'UNCHECKEDOUT') {
375: $msg.=&checkout_msg;
376: }
377: $result.=$msg.'<br />';
378: } elsif ($target eq 'tex') {
379: $result.='\begin{document}\noindent \vskip 1 mm \begin{minipage}{\textwidth}\vskip 0 mm';
380: if ($status eq 'UNAVAILABLE') {
381: $result.='Unable to determine if this resource is open due to network problems. Please try again later.\vskip 0 mm ';
382: } else {
383: $result.="Problem is not open to be viewed. It $accessmsg \\vskip 0 mm ";
384: }
385: }
386: } elsif ($target eq 'web') {
387: my $name= &get_resource_name($parstack,$safeeval);
388: if ($status eq 'CAN_ANSWER') {
389: # create a page header and exit
390: $result.="$head_tag_start<title>$name</title></head>
1.158 sakharuk 391: $body_tag_start \n $form_tag_start".
1.159 albertel 392: '<input type="hidden" name="submitted" value="yes" />';
393: if ($ENV{'request.state'} eq "construct") {
1.187 albertel 394: $result.= &problem_web_to_edit_header($ENV{'form.rndseed'});
1.159 albertel 395: }
396: # if we are viewing someone else preserve that info
397: if (defined $ENV{'form.grade_symb'}) {
398: foreach my $field ('symb','courseid','domain','username') {
399: $result .= '<input type="hidden" name="grade_'.$field.
400: '" value="'.$ENV{"form.grade_$field"}.'" />'."\n";
401: }
402: }
403: } elsif ($status eq 'SHOW_ANSWER' || $status eq 'CANNOT_ANSWER'
404: || $status eq 'CLOSED' || $status eq 'UNAVALAILABLE') {
405: $result.=$head_tag_start.
406: "<title>$name</title></head>\n$body_tag_start\n";
407: }
408: } elsif ($target eq 'tex') {
1.192 sakharuk 409: my $startminipage = '';
1.191 sakharuk 410: if (not $ENV{'form.problem_split'}=~/yes/) {
1.192 sakharuk 411: $startminipage = '\begin{minipage}{\textwidth}';
1.178 sakharuk 412: }
1.159 albertel 413: my $name= &Apache::lonxml::get_param('name',$parstack,$safeeval);
414: if ($name eq '') {
415: $name=&Apache::lonnet::EXT('resource.title');
416: if ($name eq 'con_lost') { $name = ''; }
417: }
418: $Apache::lonhomework::name=$name;
419: my $id = $Apache::inputtags::part;
420: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
421: my $allkeys=&Apache::lonnet::metadata($ENV{'request.uri'},'keys');
422: my @allkeys = split /,/,$allkeys;
423: my $allow_print_points = 0;
424: foreach my $partial_key (@allkeys) {
425: if ($partial_key=~m/weight/) {
426: $allow_print_points++;
427: }
428: }
429: my $duedate = &Apache::lonnet::EXT("resource.$id.duedate");
430: $duedate = POSIX::strftime("%c",localtime($duedate));
431: my $temp_file;
432: my $filename = "/home/httpd/prtspool/$ENV{'user.name'}_$ENV{'user.domain'}_printout.due";
433: if (-e $filename) {
434: $temp_file = Apache::File->new($filename);
435: } else {
436: $temp_file = Apache::File->new('>>'.$filename);
437: }
438: my @due_file_content = <$temp_file>;
439: my $due_file_content = $due_file_content[$#due_file_content];
440: chomp $due_file_content;
441: my $name_of_resourse= &get_resource_name($parstack,$safeeval);
442: if ($due_file_content ne $duedate) {
443: $temp_file = Apache::File->new('>'.$filename);
444: print $temp_file "$duedate\n";
445: if (not $ENV{'request.symb'} =~ m/\.page_/) {
446: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
1.178 sakharuk 447: $result .= '\begin{document} \typeout{STAMPOFPASSEDRESOURCESTART Resource <h2>"'.$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 448: } else {
1.178 sakharuk 449: $result .= '\begin{document} \typeout{STAMPOFPASSEDRESOURCESTART Resource <h2>"'.$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 450: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
451: }
1.104 sakharuk 452: } else {
1.159 albertel 453: $result .= '\vskip 1mm\textit{Due date: '.$duedate.'} \\\\\\\\';
1.104 sakharuk 454: }
1.101 sakharuk 455: } else {
1.159 albertel 456: if (not $ENV{'request.symb'} =~ m/\.page_/) {
1.178 sakharuk 457: $result .= '\begin{document} \typeout{STAMPOFPASSEDRESOURCESTART Resource <h2>"'.$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 458: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
459: } else {
460: $result .= '\vskip 1mm \\\\\\\\';
461: }
462: }
1.99 sakharuk 463: }
1.159 albertel 464: } elsif ($target eq 'edit') {
465: $result.=$head_tag_start."</head>".$body_tag_start.$form_tag_start.
466: &problem_edit_header();
467: my $temp=&Apache::edit::insertlist($target,$token);
468: $result.=$temp;
469: } elsif ($target eq 'modified') {
470: $result=$token->[4];
471: $result.=&Apache::edit::handle_insert();
472: } else {
473: # page_start returned a starting result, delete it if we don't need it
474: $result = '';
1.99 sakharuk 475: }
1.159 albertel 476: return $result;
1.9 albertel 477: }
478:
479: sub end_problem {
1.159 albertel 480: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
481: my $result='';
482: my $status=$Apache::inputtags::status['-1'];
483: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
484: $target eq 'tex') {
485: if ( $target eq 'grade' && $Apache::inputtags::part eq '0' &&
486: $status eq 'CAN_ANSWER' ) {
487: # if part is zero, no <part>s existed, so we need to the grading
488: &Apache::inputtags::grade;
489: } elsif ( ($target eq 'web' || $target eq 'tex') &&
490: $Apache::inputtags::part eq '0' &&
491: $status ne 'UNCHECKEDOUT') {
492: # if part is zero, no <part>s existed, so we need show the current
493: # grading status
494: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
495: $result.= $gradestatus;
496: }
497: if (
498: (($target eq 'web') && ($ENV{'request.state'} ne 'construct')) ||
499: ($target eq 'answer') || ($target eq 'tex')
500: ) {
501: if ($status eq 'CAN_ANSWER') {
1.172 albertel 502: if ($target ne 'tex' &&
503: $ENV{'form.answer_output_mode'} ne 'tex') {
504: $result.="</form></body>\n";
1.159 albertel 505: }
506: } elsif ($status eq 'SHOW_ANSWER' || $status eq 'CANNOT_ANSWER' ||
507: $status eq 'UNCHECKEDOUT' ) {
1.189 sakharuk 508: if ($target ne 'tex' &&
509: $ENV{'form.answer_output_mode'} ne 'tex') {
1.159 albertel 510: $result.="</body>\n";
511: }
512: }
513: if ($target eq 'web') {
514: $result.=&Apache::lonxml::xmlend();
515: } elsif ($target eq 'tex') {
1.178 sakharuk 516: my $endminipage = '';
1.191 sakharuk 517: if (not $ENV{'form.problem_split'}=~/yes/) {
1.178 sakharuk 518: $endminipage = '\end{minipage}';
519: }
1.174 sakharuk 520: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.159 albertel 521: if (not $ENV{'request.symb'} =~ m/\.page_/) {
1.178 sakharuk 522: $result .= $endminipage.'\end{document} ';
1.159 albertel 523: } else {
524: $result .= '';
525: }
526: }
527: }
528: if ($target eq 'grade') {
529: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
530: &finalize_storage();
531: }
1.172 albertel 532: if ($target eq 'answer' && ($ENV{'request.state'} eq 'construct')
1.173 albertel 533: && $ENV{'form.answer_output_mode'} ne 'tex') {
1.172 albertel 534: $result.='</html>'; # normally we get it from xmlend, but in CSTR
535: # we always show answer mode too.
1.159 albertel 536: }
537: } elsif ($target eq 'meta') {
538: if ($Apache::inputtags::part eq '0') {
1.179 albertel 539: @Apache::inputtags::response=();
1.159 albertel 540: $result=&Apache::response::mandatory_part_meta;
541: }
542: } elsif ($target eq 'edit') {
543: &Apache::lonxml::debug("in end_problem with $target, edit");
544: $result = &problem_edit_footer();
545: }
1.155 albertel 546:
1.177 albertel 547: if ($ENV{'request.state'} eq 'construct' && $target eq 'web') {
548: &Apache::inputtags::check_for_duplicate_ids();
549: }
1.159 albertel 550: undef(%Apache::lonhomework::history);
551: undef(%Apache::lonhomework::results);
552: undef($Apache::inputtags::part);
553: undef($Apache::lonhomework::parsing_a_problem);
554:
555: return $result;
1.48 albertel 556: }
557:
1.108 albertel 558:
1.48 albertel 559: sub start_library {
1.159 albertel 560: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
561: my ($result,$head_tag_start,$body_tag_start,$form_tag_start);
1.109 albertel 562:
1.159 albertel 563: if ($target eq 'edit') {
564: ($result,$head_tag_start,$body_tag_start,$form_tag_start)=
565: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
566: $result.=$head_tag_start."</head>".$body_tag_start.$form_tag_start.
567: &problem_edit_header();
568: my $temp=&Apache::edit::insertlist($target,$token);
569: $result.=$temp;
570: } elsif ($target eq 'modified') {
571: $result=$token->[4];
572: $result.=&Apache::edit::handle_insert();
573: } elsif ($target eq 'web' && $$tagstack[0] ne 'problem' &&
574: $ENV{'request.state'} eq "construct" ) {
575: ($result,$head_tag_start,$body_tag_start,$form_tag_start)=
576: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
577: my $name=&get_resource_name($parstack,$safeeval);
578: my $rndseed=&setup_rndseed($safeeval);
579: $result.="$head_tag_start<title>$name</title></head>
1.105 albertel 580: $body_tag_start \n $form_tag_start".
1.159 albertel 581: '<input type="hidden" name="submitted" value="yes" />';
582: $result.=&problem_web_to_edit_header($rndseed);
583: }
584: return $result;
1.48 albertel 585: }
586:
587: sub end_library {
1.159 albertel 588: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
589: my $result='';
590: if ($target eq 'edit') {
591: $result=&problem_edit_footer();
592: } elsif ($target eq 'web' && $$tagstack[0] ne 'problem' &&
593: $ENV{'request.state'} eq "construct") {
594: $result.='</form></body>'.&Apache::lonxml::xmlend();
595: }
596: return $result;
1.197 ! www 597: }
! 598:
! 599: sub start_definetag {
! 600: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
! 601:
! 602: my $result;
! 603:
! 604: my $name = $token->[2]->{'name'};
! 605: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser);
! 606: if ($name=~/^\//) {
! 607: $result=
! 608: '<br /><table bgcolor="#FFBBBB"><tr><th>END <tt>'.$name.'</tt></th></tr>';
! 609: } else {
! 610: $result=
! 611: '<br /><table bgcolor="#BBFFBB"><tr><th>BEGIN <tt>'.$name.'</tt></th></tr>';
! 612: }
! 613: $skip=~s/\</\<\;/gs;
! 614: $skip=~s/\>/\>\;/gs;
! 615: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
! 616: return $result;
! 617: }
! 618:
! 619: sub end_definetag {
! 620: return '';
1.1 albertel 621: }
622:
623: sub start_block {
1.131 albertel 624: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
625:
626: my $result;
1.1 albertel 627:
1.160 albertel 628: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.131 albertel 629: $target eq 'tex' || $target eq 'analyze') {
1.159 albertel 630: my $code = $token->[2]->{'condition'};
1.131 albertel 631: if ($code) {
1.137 albertel 632: if (!$Apache::lonxml::default_homework_loaded) {
633: &Apache::lonxml::default_homework_load($safeeval);
634: }
1.131 albertel 635: $result = &Apache::run::run($code,$safeeval);
636: &Apache::lonxml::debug("block :$code: returned :$result:");
637: } else {
638: $result='1';
639: }
640: if ( ! $result ) {
1.146 albertel 641: my $skip=&Apache::lonxml::get_all_text("/block",$parser);
1.131 albertel 642: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
643: }
644: $result='';
645: } elsif ($target eq 'edit') {
646: $result .=&Apache::edit::tag_start($target,$token);
647: $result .=&Apache::edit::text_arg('Test Condition:','condition',
648: $token,40);
649: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
650: } elsif ($target eq 'modified') {
651: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
652: $safeeval,'condition');
653: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 654: }
1.131 albertel 655: return $result;
1.1 albertel 656: }
657:
658: sub end_block {
1.167 www 659: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
660: my $result;
661: if ($target eq "edit") {
662: $result.= &Apache::edit::tag_end($target,$token,'');
663: }
664: return $result;
665: }
666:
667: sub start_languageblock {
668: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
669:
670: my $result;
671:
672: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
673: $target eq 'tex' || $target eq 'analyze') {
1.186 albertel 674: &Apache::lonxml::startredirection();
1.167 www 675: } elsif ($target eq 'edit') {
676: $result .=&Apache::edit::tag_start($target,$token);
677: $result .=&Apache::edit::text_arg('Include Language:','include',
678: $token,40);
679: $result .=&Apache::edit::text_arg('Exclude Language:','exclude',
680: $token,40);
681: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
682: } elsif ($target eq 'modified') {
683: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 684: $safeeval,'include',
685: 'exclude');
1.167 www 686: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
687: }
688: return $result;
689: }
690:
691: sub end_languageblock {
1.170 www 692: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
693: my $result;
1.186 albertel 694:
695: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
696: $target eq 'tex' || $target eq 'analyze') {
697: my $text=&Apache::lonxml::endredirection();
698: my $include= &Apache::lonxml::get_param('include',$parstack,$safeeval);
699: my $exclude= &Apache::lonxml::get_param('exclude',$parstack,$safeeval);
700: my %languages=&Apache::loncommon::display_languages();
701: $result='1';
702: if ($include) {
703: $result='';
704: foreach (split(/\,/,$include)) {
705: if ($languages{$_}) { $result='1'; }
706: }
707: }
708: if ($exclude) {
709: foreach (split(/\,/,$exclude)) {
710: if ($languages{$_}) { $result='0'; }
711: }
712: }
713: if ( ! $result ) {
714: $result='';
715: } else {
716: $result=$text;
717: }
718: } elsif ($target eq "edit") {
1.170 www 719: $result.= &Apache::edit::tag_end($target,$token,'');
720: }
721: return $result;
722: }
723:
724: sub start_instructorcomment {
725: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
726:
727: my $result;
728:
729: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
730: $target eq 'tex' || $target eq 'analyze') {
731: $result=($ENV{'request.role'}=~/^(in|cc|au|ca|li)/);
732: if ( ! $result ) {
733: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",$parser);
734: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
735: }
736: $result='';
737: } elsif ($target eq 'edit') {
738: $result .=&Apache::edit::tag_start($target,$token);
739: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
740: }
741: return $result;
742: }
743:
744: sub end_instructorcomment {
1.159 albertel 745: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 746: my $result;
747: if ($target eq "edit") {
748: $result.= &Apache::edit::tag_end($target,$token,'');
749: }
750: return $result;
1.4 tsai 751: }
752:
753: sub start_while {
1.159 albertel 754: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
755:
1.160 albertel 756: my $result;
1.161 albertel 757: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.160 albertel 758: $target eq 'tex' || $target eq 'analyze') {
759: my $code = $token->[2]->{'condition'};
1.4 tsai 760:
1.160 albertel 761: push( @Apache::structuretags::whileconds, $code);
762: if (!$Apache::lonxml::default_homework_loaded) {
763: &Apache::lonxml::default_homework_load($safeeval);
764: }
765: my $result = &Apache::run::run($code,$safeeval);
1.161 albertel 766: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser);
1.160 albertel 767: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 768: push( @Apache::structuretags::whileline, $token->[5]);
769: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 770: if ( $result ) {
771: &Apache::lonxml::newparser($parser,\$bodytext);
772: }
773: } elsif ($target eq 'edit') {
774: $result .=&Apache::edit::tag_start($target,$token);
775: $result .=&Apache::edit::text_arg('Test Condition:','condition',
776: $token,40);
777: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
778: } elsif ($target eq 'modified') {
779: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
780: $safeeval,'condition');
781: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 782: }
1.160 albertel 783: return $result;
1.4 tsai 784: }
785:
786: sub end_while {
1.159 albertel 787: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 788: my $result;
789:
790: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
791: $target eq 'tex' || $target eq 'analyze') {
792: my $code = pop(@Apache::structuretags::whileconds);
793: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 794: my $line = pop(@Apache::structuretags::whileline);
795: my $return = &Apache::run::run($code,$safeeval);
796: my $starttime=time;
797: my $error=0;
798: while ($return) {
799: if (time-$starttime >
800: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
801: $return = 0; $error=1; next;
802: }
803: $result.=&Apache::scripttag::xmlparse($bodytext);
804: $return = &Apache::run::run($code,$safeeval);
805: }
806: if ($error) {
807: &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 '.$line.'</pre>');
1.160 albertel 808: }
809: } elsif ($target eq "edit") {
810: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 811: }
1.160 albertel 812: return $result;
1.1 albertel 813: }
1.6 tsai 814:
1.160 albertel 815: # <randomlist show="1">
1.6 tsai 816: # <tag1>..</tag1>
817: # <tag2>..</tag2>
818: # <tag3>..</tag3>
1.160 albertel 819: # ...
1.6 tsai 820: # </randomlist>
821: sub start_randomlist {
1.159 albertel 822: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
823: my $result;
824: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
825: $target eq 'tex' || $target eq 'analyze') {
826: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
827: my $b_parser= HTML::TokeParser->new(\$body);
828: my $b_tok;
829: my @randomlist;
830: my $list_item;
831: while($b_tok = $b_parser->get_token() ) {
832: if($b_tok->[0] eq 'S') { # start tag
833: # get content of the tag until matching end tag
834: # get all text upto the matching tag
835: # and push the content into @randomlist
836: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
837: $b_parser);
838: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
839: push(@randomlist,$list_item);
840: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
841: # $list_item</b>";
842: }
843: if($b_tok->[0] eq 'T') { # text
844: # what to do with text in between tags?
845: # print "<b>TEXT $b_tok->[1]</b><br />";
846: }
847: # if($b_tok->[0] eq 'E') { # end tag, should not happen
848: # print "<b>END-TAG $b_tok->[1]</b><br />";
849: # }
850: }
851: my @idx_arr = (0 .. $#randomlist);
852: &Apache::structuretags::shuffle(\@idx_arr);
853: my $bodytext = '';
854: my $show=$#randomlist;
855: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
856: $showarg--;
857: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
858: for(0 .. $show) {
859: $bodytext .= "$randomlist[ $idx_arr[$_] ]";
860: }
861: &Apache::lonxml::newparser($parser,\$bodytext);
862: } elsif ($target eq 'edit' ) {
863: $result .=&Apache::edit::tag_start($target,$token);
864: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
865: $token,5);
866: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
867: } elsif ($target eq 'modified' ) {
868: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
869: $safeeval,'show');
870: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
871: }
872: return $result;
1.7 tsai 873: }
874:
875: sub shuffle {
876: my $a=shift;
877: my $i;
1.70 albertel 878: if (defined(@$a)) {
1.159 albertel 879: &Apache::response::setrandomnumber();
880: for($i=@$a;--$i;) {
881: my $j=int(&Math::Random::random_uniform() * ($i+1));
882: next if $i == $j;
883: @$a[$i,$j] = @$a[$j,$i];
884: }
1.7 tsai 885: }
1.6 tsai 886: }
887:
888: sub end_randomlist {
1.159 albertel 889: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
890: my $result;
891: if ($target eq 'edit' ) {
892: $result=&Apache::edit::tag_end($target,$token,
893: 'End Randomly Parsed Block');
894: }
895: return $result;
1.6 tsai 896: }
897:
1.11 albertel 898: sub start_part {
1.159 albertel 899: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
900: my $result='';
901: my $id= &Apache::lonxml::get_param('id',$parstack,$safeeval);
902: if ($id eq '') { $id = $Apache::lonxml::curdepth; }
903: $Apache::inputtags::part=$id;
1.177 albertel 904: push(@Apache::inputtags::partlist,$id);
905: @Apache::inputtags::response=();
1.159 albertel 906: @Apache::inputtags::previous=();
907: @Apache::inputtags::previous_version=();
1.169 albertel 908: $Apache::lonhomework::problemstatus=
909: &Apache::lonnet::EXT("resource.$id.problemstatus");
1.159 albertel 910: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
911:
912: if ($target eq 'meta') {
913: return &Apache::response::mandatory_part_meta;
914: } elsif ($target eq 'web' || $target eq 'grade' ||
915: $target eq 'answer' || $target eq 'tex') {
916: if ($hidden) {
917: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser);
918: } else {
919: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
920: push (@Apache::inputtags::status,$status);
921: my $expression='$external::datestatus="'.$status.'";';
922: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
923: &Apache::run::run($expression,$safeeval);
924: if ( $status eq 'CLOSED' ) {
925: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser);
926: if ( $target eq "web" ) {
927: $result="<br />Part is not open to be viewed. It $accessmsg<br />";
928: } elsif ( $target eq 'tex' ) {
1.195 sakharuk 929: if (not $ENV{'form.problem_split'}=~/yes/) {
930: $result="\\end{minipage}\\vskip 0 mm Part is not open to be viewed. It $accessmsg \\\\\\begin{minipage}{\\textwidth}";
931: } else {
932: $result="\\vskip 0 mm Part is not open to be viewed. It $accessmsg \\\\";
933: }
1.159 albertel 934: }
935: } else {
936: if ($target eq 'tex') {
1.195 sakharuk 937: if (not $ENV{'form.problem_split'}=~/yes/) {
938: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
939: }
1.159 albertel 940: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
941: if ($Apache::lonhomework::type eq 'exam') { $result .= '\fbox{\textit{'.$weight.' pt}}';}
942: }
943: }
944: }
945: } elsif ($target eq 'edit') {
946: $result.=&Apache::edit::tag_start($target,$token);
947: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
948: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
949: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
950: } elsif ($target eq 'modified') {
951: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
952: $safeeval,'id');
953: if ($constructtag) {
954: $result = &Apache::edit::rebuild_tag($token);
955: $result.=&Apache::edit::handle_insert();
956: }
957: }
958: return $result;
1.11 albertel 959: }
960:
961: sub end_part {
1.159 albertel 962: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
963: &Apache::lonxml::debug("in end_part $target ");
964: my $status=$Apache::inputtags::status['-1'];
965: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
966: my $result='';
967: if ( $target eq 'meta' ) {
968: $result='';
969: } elsif ( $target eq 'grade' && $status eq 'CAN_ANSWER' && !$hidden) {
970: $result=&Apache::inputtags::grade;
971: } elsif (($target eq 'web' || $target eq 'tex') && !$hidden ) {
972: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
973: $target);
974: if ($Apache::lonhomework::type eq 'exam') {$gradestatus='';}
975: $result=$gradestatus;
1.181 albertel 976: } elsif ($target eq 'edit') {
977: $result=&Apache::edit::end_table();
1.159 albertel 978: }
979: pop @Apache::inputtags::status;
980: $Apache::inputtags::part='';
981: return $result;
1.11 albertel 982: }
1.1 albertel 983:
1.25 albertel 984: sub start_preduedate {
1.159 albertel 985: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
986: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' || $target eq 'tex') {
987: if ($Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
988: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER' &&
989: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER') {
990: &Apache::lonxml::get_all_text("/preduedate",$parser);
991: }
1.24 albertel 992: }
1.159 albertel 993: return '';
1.24 albertel 994: }
995:
1.25 albertel 996: sub end_preduedate {
1.159 albertel 997: return '';
1.24 albertel 998: }
999:
1.25 albertel 1000: sub start_postanswerdate {
1.159 albertel 1001: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1002: if ($target eq 'web' || $target eq 'grade' || $target eq 'tex') {
1003: if ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER') {
1004: &Apache::lonxml::get_all_text("/postanswerdate",$parser);
1005: }
1006: } elsif ($target eq 'tex') {
1007: return '\vskip 0 mm \noindent';
1008: }
1009: return '';
1.24 albertel 1010: }
1011:
1.25 albertel 1012: sub end_postanswerdate {
1.159 albertel 1013: return '';
1.24 albertel 1014: }
1015:
1.25 albertel 1016: sub start_notsolved {
1.159 albertel 1017: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1018: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1019: $target eq 'tex') {
1020: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1021: &Apache::lonxml::debug("not solved has :$gradestatus:");
1022: if ($gradestatus =~ /^correct/) {
1023: &Apache::lonxml::debug("skipping");
1024: &Apache::lonxml::get_all_text("/notsolved",$parser);
1025: }
1.24 albertel 1026: }
1.159 albertel 1027: return '';
1.24 albertel 1028: }
1029:
1.25 albertel 1030: sub end_notsolved {
1.159 albertel 1031: return '';
1.24 albertel 1032: }
1033:
1034: sub start_solved {
1.159 albertel 1035: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1036: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1037: $target eq 'tex') {
1038: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1039: if ($gradestatus !~ /^correct/) {
1040: &Apache::lonxml::get_all_text("/solved",$parser);
1041: }
1.24 albertel 1042: }
1.159 albertel 1043: return '';
1.24 albertel 1044: }
1045:
1046: sub end_solved {
1.159 albertel 1047: return '';
1.24 albertel 1048: }
1.34 albertel 1049:
1050: sub start_startouttext {
1.159 albertel 1051: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1052: my @result=(''.'');
1053: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1054: return (@result);
1.34 albertel 1055: }
1.159 albertel 1056:
1.34 albertel 1057: sub end_startouttext {
1.159 albertel 1058: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1059: my $result='';
1060: my $text='';
1061:
1062: if ($target eq 'edit') {
1063: $text=&Apache::lonxml::get_all_text("endouttext",$parser);
1064: $result.=&Apache::edit::start_table($token)."<tr><td>Text Block</td>
1.42 albertel 1065: <td>Delete:".
1.159 albertel 1066: &Apache::edit::deletelist($target,$token)
1067: ."</td>
1.42 albertel 1068: <td>".
1.159 albertel 1069: &Apache::edit::insertlist($target,$token).
1070: &Apache::edit::end_row().
1071: &Apache::edit::start_spanning_row()."\n"
1.188 bowersj2 1072: . &Apache::loncommon::helpLatexCheatsheet () .
1.159 albertel 1073: &Apache::edit::editfield($token->[1],$text,"",80,4);
1074: }
1075: if ($target eq 'modified') {
1076: $text=&Apache::lonxml::get_all_text("endouttext",$parser);
1077: $result='<startouttext />'.&Apache::edit::modifiedfield();
1078: }
1079: if ($target eq 'tex') {
1080: $result .= '\noindent ';
1081: }
1082: return $result;
1.34 albertel 1083: }
1.159 albertel 1084:
1.34 albertel 1085: sub start_endouttext {
1.159 albertel 1086: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1087: my $result='';
1088: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
1089: if ($target eq "modified") {
1090: $result='<endouttext />'.
1091: &Apache::edit::handle_insertafter('startouttext'); }
1092: return $result;
1.34 albertel 1093: }
1.159 albertel 1094:
1.34 albertel 1095: sub end_endouttext {
1.159 albertel 1096: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1097: my @result=('','');
1098: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
1099: return (@result);
1.34 albertel 1100: }
1.159 albertel 1101:
1.45 albertel 1102: sub delete_startouttext {
1.159 albertel 1103: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1104: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser);
1105: my $text=$$parser['-1']->get_text("/endouttext");
1106: my $ntoken=$$parser['-1']->get_token();
1107: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
1108: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
1109: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
1110: # they did the last time round
1111: &Apache::lonxml::increasedepth($ntoken);
1112: &Apache::lonxml::decreasedepth($ntoken);
1113: return 1;
1.193 www 1114: }
1115:
1116: sub start_simpleeditbutton {
1117: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1118: my $result='';
1119: if (($target eq 'web') &&
1120: (&Apache::lonnet::allowed('srm',$ENV{'request.course.id'}))) {
1121: my $url=$ENV{'REQUEST_URI'};
1122: $url=~s/\?.*$//;
1.194 www 1123: $result='<table width="100%" bgcolor="#FFFFAA" border="2"><tr><td>'.
1.196 www 1124: '<a href="'.$url.'/smpedit">Simple Problem Editor</a> - Note: it can take up to 10 minutes for changes to take effect for all users.'.
1125: &Apache::loncommon::help_open_topic('Caching').'</td></tr></table><br />';
1.193 www 1126: }
1127: return $result;
1128: }
1129:
1130: sub end_simpleeditbutton {
1131: return '';
1.45 albertel 1132: }
1.34 albertel 1133:
1.1 albertel 1134: 1;
1135: __END__
FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>
![[BACK]](/icons/back.gif){kind=icon}
Return to structuretags.pm CVS log ![[TXT]](/icons/text.gif){kind=icon}
![[DIR]](/icons/dir.gif){kind=icon}
Up to [LON-CAPA] / loncom / homework