Annotation of loncom/homework/structuretags.pm, revision 1.200.2.3
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') ||
366: ( $status eq 'UNAVAILABLE')) {
367: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser);
368: if ( $target eq "web" ) {
369: $result.= $head_tag_start.'</head>';
370: my $msg=$body_tag_start;
371: if ($status eq 'UNAVAILABLE') {
372: $result.='<h1>Unable to determine if this resource is open due to network problems. Please try again later.</h1>';
373: } else {
374: $result.='<h1>Not open to be viewed</h1>';
375: }
376: if ($status eq 'CLOSED') {
377: $msg.='The problem '.$accessmsg;
378: } elsif ($status eq 'UNCHECKEDOUT') {
379: $msg.=&checkout_msg;
380: }
381: $result.=$msg.'<br />';
382: } elsif ($target eq 'tex') {
383: $result.='\begin{document}\noindent \vskip 1 mm \begin{minipage}{\textwidth}\vskip 0 mm';
384: if ($status eq 'UNAVAILABLE') {
385: $result.='Unable to determine if this resource is open due to network problems. Please try again later.\vskip 0 mm ';
386: } else {
387: $result.="Problem is not open to be viewed. It $accessmsg \\vskip 0 mm ";
388: }
389: }
390: } elsif ($target eq 'web') {
391: my $name= &get_resource_name($parstack,$safeeval);
392: if ($status eq 'CAN_ANSWER') {
393: # create a page header and exit
394: $result.="$head_tag_start<title>$name</title></head>
1.158 sakharuk 395: $body_tag_start \n $form_tag_start".
1.159 albertel 396: '<input type="hidden" name="submitted" value="yes" />';
397: if ($ENV{'request.state'} eq "construct") {
1.187 albertel 398: $result.= &problem_web_to_edit_header($ENV{'form.rndseed'});
1.159 albertel 399: }
400: # if we are viewing someone else preserve that info
401: if (defined $ENV{'form.grade_symb'}) {
402: foreach my $field ('symb','courseid','domain','username') {
403: $result .= '<input type="hidden" name="grade_'.$field.
404: '" value="'.$ENV{"form.grade_$field"}.'" />'."\n";
405: }
406: }
407: } elsif ($status eq 'SHOW_ANSWER' || $status eq 'CANNOT_ANSWER'
408: || $status eq 'CLOSED' || $status eq 'UNAVALAILABLE') {
409: $result.=$head_tag_start.
410: "<title>$name</title></head>\n$body_tag_start\n";
411: }
412: } elsif ($target eq 'tex') {
1.192 sakharuk 413: my $startminipage = '';
1.191 sakharuk 414: if (not $ENV{'form.problem_split'}=~/yes/) {
1.192 sakharuk 415: $startminipage = '\begin{minipage}{\textwidth}';
1.178 sakharuk 416: }
1.159 albertel 417: my $name= &Apache::lonxml::get_param('name',$parstack,$safeeval);
418: if ($name eq '') {
419: $name=&Apache::lonnet::EXT('resource.title');
420: if ($name eq 'con_lost') { $name = ''; }
421: }
422: $Apache::lonhomework::name=$name;
423: my $id = $Apache::inputtags::part;
424: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
425: my $allkeys=&Apache::lonnet::metadata($ENV{'request.uri'},'keys');
426: my @allkeys = split /,/,$allkeys;
427: my $allow_print_points = 0;
428: foreach my $partial_key (@allkeys) {
429: if ($partial_key=~m/weight/) {
430: $allow_print_points++;
431: }
432: }
433: my $duedate = &Apache::lonnet::EXT("resource.$id.duedate");
434: $duedate = POSIX::strftime("%c",localtime($duedate));
435: my $temp_file;
436: my $filename = "/home/httpd/prtspool/$ENV{'user.name'}_$ENV{'user.domain'}_printout.due";
437: if (-e $filename) {
438: $temp_file = Apache::File->new($filename);
439: } else {
440: $temp_file = Apache::File->new('>>'.$filename);
441: }
442: my @due_file_content = <$temp_file>;
443: my $due_file_content = $due_file_content[$#due_file_content];
444: chomp $due_file_content;
445: my $name_of_resourse= &get_resource_name($parstack,$safeeval);
446: if ($due_file_content ne $duedate) {
447: $temp_file = Apache::File->new('>'.$filename);
448: print $temp_file "$duedate\n";
449: if (not $ENV{'request.symb'} =~ m/\.page_/) {
450: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
1.178 sakharuk 451: $result .= '\begin{document} \typeout{STAMPOFPASSEDRESOURCESTART Resource <h2>"'.$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 452: } else {
1.178 sakharuk 453: $result .= '\begin{document} \typeout{STAMPOFPASSEDRESOURCESTART Resource <h2>"'.$name_of_resourse.'"</h2> located in <br /><small><b>'.$ENV{'request.uri'}.'</b></small><br /> STAMPOFPASSEDRESOURCEEND} \noindent \vskip 1 mm \noindent'.$startminipage;
1.159 albertel 454: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
455: }
1.104 sakharuk 456: } else {
1.159 albertel 457: $result .= '\vskip 1mm\textit{Due date: '.$duedate.'} \\\\\\\\';
1.104 sakharuk 458: }
1.101 sakharuk 459: } else {
1.159 albertel 460: if (not $ENV{'request.symb'} =~ m/\.page_/) {
1.178 sakharuk 461: $result .= '\begin{document} \typeout{STAMPOFPASSEDRESOURCESTART Resource <h2>"'.$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 462: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
463: } else {
464: $result .= '\vskip 1mm \\\\\\\\';
465: }
466: }
1.99 sakharuk 467: }
1.159 albertel 468: } elsif ($target eq 'edit') {
469: $result.=$head_tag_start."</head>".$body_tag_start.$form_tag_start.
470: &problem_edit_header();
471: my $temp=&Apache::edit::insertlist($target,$token);
472: $result.=$temp;
473: } elsif ($target eq 'modified') {
474: $result=$token->[4];
475: $result.=&Apache::edit::handle_insert();
476: } else {
477: # page_start returned a starting result, delete it if we don't need it
478: $result = '';
1.99 sakharuk 479: }
1.159 albertel 480: return $result;
1.9 albertel 481: }
482:
483: sub end_problem {
1.159 albertel 484: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
485: my $result='';
486: my $status=$Apache::inputtags::status['-1'];
487: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
488: $target eq 'tex') {
489: if ( $target eq 'grade' && $Apache::inputtags::part eq '0' &&
490: $status eq 'CAN_ANSWER' ) {
491: # if part is zero, no <part>s existed, so we need to the grading
492: &Apache::inputtags::grade;
493: } elsif ( ($target eq 'web' || $target eq 'tex') &&
494: $Apache::inputtags::part eq '0' &&
495: $status ne 'UNCHECKEDOUT') {
496: # if part is zero, no <part>s existed, so we need show the current
497: # grading status
498: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
499: $result.= $gradestatus;
500: }
501: if (
502: (($target eq 'web') && ($ENV{'request.state'} ne 'construct')) ||
503: ($target eq 'answer') || ($target eq 'tex')
504: ) {
505: if ($status eq 'CAN_ANSWER') {
1.172 albertel 506: if ($target ne 'tex' &&
507: $ENV{'form.answer_output_mode'} ne 'tex') {
508: $result.="</form></body>\n";
1.159 albertel 509: }
510: } elsif ($status eq 'SHOW_ANSWER' || $status eq 'CANNOT_ANSWER' ||
511: $status eq 'UNCHECKEDOUT' ) {
1.189 sakharuk 512: if ($target ne 'tex' &&
513: $ENV{'form.answer_output_mode'} ne 'tex') {
1.159 albertel 514: $result.="</body>\n";
515: }
516: }
517: if ($target eq 'web') {
518: $result.=&Apache::lonxml::xmlend();
519: } elsif ($target eq 'tex') {
1.178 sakharuk 520: my $endminipage = '';
1.191 sakharuk 521: if (not $ENV{'form.problem_split'}=~/yes/) {
1.178 sakharuk 522: $endminipage = '\end{minipage}';
523: }
1.174 sakharuk 524: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.159 albertel 525: if (not $ENV{'request.symb'} =~ m/\.page_/) {
1.178 sakharuk 526: $result .= $endminipage.'\end{document} ';
1.159 albertel 527: } else {
528: $result .= '';
529: }
530: }
531: }
532: if ($target eq 'grade') {
533: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
534: &finalize_storage();
535: }
1.172 albertel 536: if ($target eq 'answer' && ($ENV{'request.state'} eq 'construct')
1.173 albertel 537: && $ENV{'form.answer_output_mode'} ne 'tex') {
1.172 albertel 538: $result.='</html>'; # normally we get it from xmlend, but in CSTR
539: # we always show answer mode too.
1.159 albertel 540: }
541: } elsif ($target eq 'meta') {
542: if ($Apache::inputtags::part eq '0') {
1.179 albertel 543: @Apache::inputtags::response=();
1.159 albertel 544: $result=&Apache::response::mandatory_part_meta;
545: }
1.200.2.3! albertel 546: $result.=&Apache::response::meta_part_order;
1.159 albertel 547: } elsif ($target eq 'edit') {
548: &Apache::lonxml::debug("in end_problem with $target, edit");
549: $result = &problem_edit_footer();
550: }
1.155 albertel 551:
1.177 albertel 552: if ($ENV{'request.state'} eq 'construct' && $target eq 'web') {
553: &Apache::inputtags::check_for_duplicate_ids();
554: }
1.159 albertel 555: undef(%Apache::lonhomework::history);
556: undef(%Apache::lonhomework::results);
557: undef($Apache::inputtags::part);
558: undef($Apache::lonhomework::parsing_a_problem);
559:
560: return $result;
1.48 albertel 561: }
562:
1.108 albertel 563:
1.48 albertel 564: sub start_library {
1.159 albertel 565: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
566: my ($result,$head_tag_start,$body_tag_start,$form_tag_start);
1.109 albertel 567:
1.159 albertel 568: if ($target eq 'edit') {
569: ($result,$head_tag_start,$body_tag_start,$form_tag_start)=
570: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
571: $result.=$head_tag_start."</head>".$body_tag_start.$form_tag_start.
572: &problem_edit_header();
573: my $temp=&Apache::edit::insertlist($target,$token);
574: $result.=$temp;
575: } elsif ($target eq 'modified') {
576: $result=$token->[4];
577: $result.=&Apache::edit::handle_insert();
578: } elsif ($target eq 'web' && $$tagstack[0] ne 'problem' &&
579: $ENV{'request.state'} eq "construct" ) {
580: ($result,$head_tag_start,$body_tag_start,$form_tag_start)=
581: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
582: my $name=&get_resource_name($parstack,$safeeval);
583: my $rndseed=&setup_rndseed($safeeval);
584: $result.="$head_tag_start<title>$name</title></head>
1.105 albertel 585: $body_tag_start \n $form_tag_start".
1.159 albertel 586: '<input type="hidden" name="submitted" value="yes" />';
587: $result.=&problem_web_to_edit_header($rndseed);
588: }
589: return $result;
1.48 albertel 590: }
591:
592: sub end_library {
1.159 albertel 593: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
594: my $result='';
595: if ($target eq 'edit') {
596: $result=&problem_edit_footer();
597: } elsif ($target eq 'web' && $$tagstack[0] ne 'problem' &&
598: $ENV{'request.state'} eq "construct") {
599: $result.='</form></body>'.&Apache::lonxml::xmlend();
600: }
601: return $result;
1.197 www 602: }
603:
604: sub start_definetag {
605: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
606:
607: my $result;
608:
609: my $name = $token->[2]->{'name'};
610: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser);
611: if ($name=~/^\//) {
612: $result=
613: '<br /><table bgcolor="#FFBBBB"><tr><th>END <tt>'.$name.'</tt></th></tr>';
614: } else {
615: $result=
616: '<br /><table bgcolor="#BBFFBB"><tr><th>BEGIN <tt>'.$name.'</tt></th></tr>';
617: }
618: $skip=~s/\</\<\;/gs;
619: $skip=~s/\>/\>\;/gs;
620: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
621: return $result;
622: }
623:
624: sub end_definetag {
625: return '';
1.1 albertel 626: }
627:
628: sub start_block {
1.131 albertel 629: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
630:
631: my $result;
1.1 albertel 632:
1.160 albertel 633: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.131 albertel 634: $target eq 'tex' || $target eq 'analyze') {
1.159 albertel 635: my $code = $token->[2]->{'condition'};
1.131 albertel 636: if ($code) {
1.137 albertel 637: if (!$Apache::lonxml::default_homework_loaded) {
638: &Apache::lonxml::default_homework_load($safeeval);
639: }
1.131 albertel 640: $result = &Apache::run::run($code,$safeeval);
641: &Apache::lonxml::debug("block :$code: returned :$result:");
642: } else {
643: $result='1';
644: }
645: if ( ! $result ) {
1.146 albertel 646: my $skip=&Apache::lonxml::get_all_text("/block",$parser);
1.131 albertel 647: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
648: }
649: $result='';
650: } elsif ($target eq 'edit') {
651: $result .=&Apache::edit::tag_start($target,$token);
652: $result .=&Apache::edit::text_arg('Test Condition:','condition',
653: $token,40);
654: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
655: } elsif ($target eq 'modified') {
656: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
657: $safeeval,'condition');
658: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 659: }
1.131 albertel 660: return $result;
1.1 albertel 661: }
662:
663: sub end_block {
1.167 www 664: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
665: my $result;
666: if ($target eq "edit") {
667: $result.= &Apache::edit::tag_end($target,$token,'');
668: }
669: return $result;
670: }
671:
672: sub start_languageblock {
673: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
674:
675: my $result;
676:
677: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
678: $target eq 'tex' || $target eq 'analyze') {
1.186 albertel 679: &Apache::lonxml::startredirection();
1.167 www 680: } elsif ($target eq 'edit') {
681: $result .=&Apache::edit::tag_start($target,$token);
682: $result .=&Apache::edit::text_arg('Include Language:','include',
683: $token,40);
684: $result .=&Apache::edit::text_arg('Exclude Language:','exclude',
685: $token,40);
686: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
687: } elsif ($target eq 'modified') {
688: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 689: $safeeval,'include',
690: 'exclude');
1.167 www 691: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
692: }
693: return $result;
694: }
695:
696: sub end_languageblock {
1.170 www 697: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
698: my $result;
1.186 albertel 699:
700: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
701: $target eq 'tex' || $target eq 'analyze') {
702: my $text=&Apache::lonxml::endredirection();
703: my $include= &Apache::lonxml::get_param('include',$parstack,$safeeval);
704: my $exclude= &Apache::lonxml::get_param('exclude',$parstack,$safeeval);
705: my %languages=&Apache::loncommon::display_languages();
706: $result='1';
707: if ($include) {
708: $result='';
709: foreach (split(/\,/,$include)) {
710: if ($languages{$_}) { $result='1'; }
711: }
712: }
713: if ($exclude) {
714: foreach (split(/\,/,$exclude)) {
715: if ($languages{$_}) { $result='0'; }
716: }
717: }
718: if ( ! $result ) {
719: $result='';
720: } else {
721: $result=$text;
722: }
723: } elsif ($target eq "edit") {
1.170 www 724: $result.= &Apache::edit::tag_end($target,$token,'');
725: }
726: return $result;
727: }
728:
729: sub start_instructorcomment {
730: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
731:
732: my $result;
733:
734: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
735: $target eq 'tex' || $target eq 'analyze') {
736: $result=($ENV{'request.role'}=~/^(in|cc|au|ca|li)/);
737: if ( ! $result ) {
738: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",$parser);
739: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
740: }
741: $result='';
742: } elsif ($target eq 'edit') {
743: $result .=&Apache::edit::tag_start($target,$token);
744: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
745: }
746: return $result;
747: }
748:
749: sub end_instructorcomment {
1.159 albertel 750: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 751: my $result;
752: if ($target eq "edit") {
753: $result.= &Apache::edit::tag_end($target,$token,'');
754: }
755: return $result;
1.4 tsai 756: }
757:
758: sub start_while {
1.159 albertel 759: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
760:
1.160 albertel 761: my $result;
1.161 albertel 762: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.160 albertel 763: $target eq 'tex' || $target eq 'analyze') {
764: my $code = $token->[2]->{'condition'};
1.4 tsai 765:
1.160 albertel 766: push( @Apache::structuretags::whileconds, $code);
767: if (!$Apache::lonxml::default_homework_loaded) {
768: &Apache::lonxml::default_homework_load($safeeval);
769: }
770: my $result = &Apache::run::run($code,$safeeval);
1.161 albertel 771: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser);
1.160 albertel 772: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 773: push( @Apache::structuretags::whileline, $token->[5]);
774: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 775: if ( $result ) {
776: &Apache::lonxml::newparser($parser,\$bodytext);
777: }
778: } elsif ($target eq 'edit') {
779: $result .=&Apache::edit::tag_start($target,$token);
780: $result .=&Apache::edit::text_arg('Test Condition:','condition',
781: $token,40);
782: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
783: } elsif ($target eq 'modified') {
784: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
785: $safeeval,'condition');
786: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 787: }
1.160 albertel 788: return $result;
1.4 tsai 789: }
790:
791: sub end_while {
1.159 albertel 792: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 793: my $result;
794:
795: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
796: $target eq 'tex' || $target eq 'analyze') {
797: my $code = pop(@Apache::structuretags::whileconds);
798: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 799: my $line = pop(@Apache::structuretags::whileline);
800: my $return = &Apache::run::run($code,$safeeval);
801: my $starttime=time;
802: my $error=0;
803: while ($return) {
804: if (time-$starttime >
805: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
806: $return = 0; $error=1; next;
807: }
808: $result.=&Apache::scripttag::xmlparse($bodytext);
809: $return = &Apache::run::run($code,$safeeval);
810: }
811: if ($error) {
812: &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 '.$line.'</pre>');
1.160 albertel 813: }
814: } elsif ($target eq "edit") {
815: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 816: }
1.160 albertel 817: return $result;
1.1 albertel 818: }
1.6 tsai 819:
1.160 albertel 820: # <randomlist show="1">
1.6 tsai 821: # <tag1>..</tag1>
822: # <tag2>..</tag2>
823: # <tag3>..</tag3>
1.160 albertel 824: # ...
1.6 tsai 825: # </randomlist>
826: sub start_randomlist {
1.159 albertel 827: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
828: my $result;
829: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
830: $target eq 'tex' || $target eq 'analyze') {
831: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
832: my $b_parser= HTML::TokeParser->new(\$body);
833: my $b_tok;
834: my @randomlist;
835: my $list_item;
836: while($b_tok = $b_parser->get_token() ) {
837: if($b_tok->[0] eq 'S') { # start tag
838: # get content of the tag until matching end tag
839: # get all text upto the matching tag
840: # and push the content into @randomlist
841: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
842: $b_parser);
843: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
844: push(@randomlist,$list_item);
845: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
846: # $list_item</b>";
847: }
848: if($b_tok->[0] eq 'T') { # text
849: # what to do with text in between tags?
850: # print "<b>TEXT $b_tok->[1]</b><br />";
851: }
852: # if($b_tok->[0] eq 'E') { # end tag, should not happen
853: # print "<b>END-TAG $b_tok->[1]</b><br />";
854: # }
855: }
856: my @idx_arr = (0 .. $#randomlist);
857: &Apache::structuretags::shuffle(\@idx_arr);
858: my $bodytext = '';
859: my $show=$#randomlist;
860: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
861: $showarg--;
862: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
863: for(0 .. $show) {
864: $bodytext .= "$randomlist[ $idx_arr[$_] ]";
865: }
866: &Apache::lonxml::newparser($parser,\$bodytext);
867: } elsif ($target eq 'edit' ) {
868: $result .=&Apache::edit::tag_start($target,$token);
869: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
870: $token,5);
871: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
872: } elsif ($target eq 'modified' ) {
873: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
874: $safeeval,'show');
875: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
876: }
877: return $result;
1.7 tsai 878: }
879:
880: sub shuffle {
881: my $a=shift;
882: my $i;
1.70 albertel 883: if (defined(@$a)) {
1.159 albertel 884: &Apache::response::setrandomnumber();
885: for($i=@$a;--$i;) {
886: my $j=int(&Math::Random::random_uniform() * ($i+1));
887: next if $i == $j;
888: @$a[$i,$j] = @$a[$j,$i];
889: }
1.7 tsai 890: }
1.6 tsai 891: }
892:
893: sub end_randomlist {
1.159 albertel 894: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
895: my $result;
896: if ($target eq 'edit' ) {
897: $result=&Apache::edit::tag_end($target,$token,
898: 'End Randomly Parsed Block');
899: }
900: return $result;
1.6 tsai 901: }
902:
1.11 albertel 903: sub start_part {
1.159 albertel 904: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
905: my $result='';
906: my $id= &Apache::lonxml::get_param('id',$parstack,$safeeval);
907: if ($id eq '') { $id = $Apache::lonxml::curdepth; }
908: $Apache::inputtags::part=$id;
1.177 albertel 909: push(@Apache::inputtags::partlist,$id);
910: @Apache::inputtags::response=();
1.159 albertel 911: @Apache::inputtags::previous=();
912: @Apache::inputtags::previous_version=();
1.169 albertel 913: $Apache::lonhomework::problemstatus=
914: &Apache::lonnet::EXT("resource.$id.problemstatus");
1.159 albertel 915: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
916:
917: if ($target eq 'meta') {
918: return &Apache::response::mandatory_part_meta;
919: } elsif ($target eq 'web' || $target eq 'grade' ||
920: $target eq 'answer' || $target eq 'tex') {
921: if ($hidden) {
922: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser);
923: } else {
924: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
925: push (@Apache::inputtags::status,$status);
926: my $expression='$external::datestatus="'.$status.'";';
927: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
928: &Apache::run::run($expression,$safeeval);
929: if ( $status eq 'CLOSED' ) {
930: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser);
931: if ( $target eq "web" ) {
932: $result="<br />Part is not open to be viewed. It $accessmsg<br />";
933: } elsif ( $target eq 'tex' ) {
1.195 sakharuk 934: if (not $ENV{'form.problem_split'}=~/yes/) {
935: $result="\\end{minipage}\\vskip 0 mm Part is not open to be viewed. It $accessmsg \\\\\\begin{minipage}{\\textwidth}";
936: } else {
937: $result="\\vskip 0 mm Part is not open to be viewed. It $accessmsg \\\\";
938: }
1.159 albertel 939: }
940: } else {
941: if ($target eq 'tex') {
1.195 sakharuk 942: if (not $ENV{'form.problem_split'}=~/yes/) {
943: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
944: }
1.159 albertel 945: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
946: if ($Apache::lonhomework::type eq 'exam') { $result .= '\fbox{\textit{'.$weight.' pt}}';}
947: }
948: }
949: }
950: } elsif ($target eq 'edit') {
951: $result.=&Apache::edit::tag_start($target,$token);
952: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
953: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
954: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
955: } elsif ($target eq 'modified') {
956: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
957: $safeeval,'id');
958: if ($constructtag) {
959: $result = &Apache::edit::rebuild_tag($token);
960: $result.=&Apache::edit::handle_insert();
961: }
962: }
963: return $result;
1.11 albertel 964: }
965:
966: sub end_part {
1.159 albertel 967: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
968: &Apache::lonxml::debug("in end_part $target ");
969: my $status=$Apache::inputtags::status['-1'];
970: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
971: my $result='';
972: if ( $target eq 'meta' ) {
973: $result='';
974: } elsif ( $target eq 'grade' && $status eq 'CAN_ANSWER' && !$hidden) {
975: $result=&Apache::inputtags::grade;
976: } elsif (($target eq 'web' || $target eq 'tex') && !$hidden ) {
977: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
978: $target);
1.200.2.2 albertel 979: if ($Apache::lonhomework::type eq 'exam' && $target eq 'tex') {
980: $gradestatus='';
981: }
1.159 albertel 982: $result=$gradestatus;
1.181 albertel 983: } elsif ($target eq 'edit') {
984: $result=&Apache::edit::end_table();
1.159 albertel 985: }
986: pop @Apache::inputtags::status;
987: $Apache::inputtags::part='';
988: return $result;
1.11 albertel 989: }
1.1 albertel 990:
1.25 albertel 991: sub start_preduedate {
1.159 albertel 992: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
993: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' || $target eq 'tex') {
994: if ($Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
995: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER' &&
996: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER') {
997: &Apache::lonxml::get_all_text("/preduedate",$parser);
998: }
1.24 albertel 999: }
1.159 albertel 1000: return '';
1.24 albertel 1001: }
1002:
1.25 albertel 1003: sub end_preduedate {
1.159 albertel 1004: return '';
1.24 albertel 1005: }
1006:
1.25 albertel 1007: sub start_postanswerdate {
1.159 albertel 1008: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1009: if ($target eq 'web' || $target eq 'grade' || $target eq 'tex') {
1010: if ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER') {
1011: &Apache::lonxml::get_all_text("/postanswerdate",$parser);
1012: }
1013: } elsif ($target eq 'tex') {
1014: return '\vskip 0 mm \noindent';
1015: }
1016: return '';
1.24 albertel 1017: }
1018:
1.25 albertel 1019: sub end_postanswerdate {
1.159 albertel 1020: return '';
1.24 albertel 1021: }
1022:
1.25 albertel 1023: sub start_notsolved {
1.159 albertel 1024: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1025: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1026: $target eq 'tex') {
1027: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1028: &Apache::lonxml::debug("not solved has :$gradestatus:");
1029: if ($gradestatus =~ /^correct/) {
1030: &Apache::lonxml::debug("skipping");
1031: &Apache::lonxml::get_all_text("/notsolved",$parser);
1032: }
1.24 albertel 1033: }
1.159 albertel 1034: return '';
1.24 albertel 1035: }
1036:
1.25 albertel 1037: sub end_notsolved {
1.159 albertel 1038: return '';
1.24 albertel 1039: }
1040:
1041: sub start_solved {
1.159 albertel 1042: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1043: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1044: $target eq 'tex') {
1045: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1046: if ($gradestatus !~ /^correct/) {
1047: &Apache::lonxml::get_all_text("/solved",$parser);
1048: }
1.24 albertel 1049: }
1.159 albertel 1050: return '';
1.24 albertel 1051: }
1052:
1053: sub end_solved {
1.159 albertel 1054: return '';
1.24 albertel 1055: }
1.34 albertel 1056:
1057: sub start_startouttext {
1.159 albertel 1058: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1059: my @result=(''.'');
1060: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1061: return (@result);
1.34 albertel 1062: }
1.159 albertel 1063:
1.34 albertel 1064: sub end_startouttext {
1.159 albertel 1065: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1066: my $result='';
1067: my $text='';
1068:
1069: if ($target eq 'edit') {
1070: $text=&Apache::lonxml::get_all_text("endouttext",$parser);
1071: $result.=&Apache::edit::start_table($token)."<tr><td>Text Block</td>
1.42 albertel 1072: <td>Delete:".
1.159 albertel 1073: &Apache::edit::deletelist($target,$token)
1074: ."</td>
1.42 albertel 1075: <td>".
1.159 albertel 1076: &Apache::edit::insertlist($target,$token).
1077: &Apache::edit::end_row().
1078: &Apache::edit::start_spanning_row()."\n"
1.188 bowersj2 1079: . &Apache::loncommon::helpLatexCheatsheet () .
1.159 albertel 1080: &Apache::edit::editfield($token->[1],$text,"",80,4);
1081: }
1082: if ($target eq 'modified') {
1083: $text=&Apache::lonxml::get_all_text("endouttext",$parser);
1084: $result='<startouttext />'.&Apache::edit::modifiedfield();
1085: }
1086: if ($target eq 'tex') {
1087: $result .= '\noindent ';
1088: }
1089: return $result;
1.34 albertel 1090: }
1.159 albertel 1091:
1.34 albertel 1092: sub start_endouttext {
1.159 albertel 1093: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1094: my $result='';
1095: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
1096: if ($target eq "modified") {
1097: $result='<endouttext />'.
1098: &Apache::edit::handle_insertafter('startouttext'); }
1099: return $result;
1.34 albertel 1100: }
1.159 albertel 1101:
1.34 albertel 1102: sub end_endouttext {
1.159 albertel 1103: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1104: my @result=('','');
1105: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
1106: return (@result);
1.34 albertel 1107: }
1.159 albertel 1108:
1.45 albertel 1109: sub delete_startouttext {
1.159 albertel 1110: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1111: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser);
1112: my $text=$$parser['-1']->get_text("/endouttext");
1113: my $ntoken=$$parser['-1']->get_token();
1114: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
1115: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
1116: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
1117: # they did the last time round
1118: &Apache::lonxml::increasedepth($ntoken);
1119: &Apache::lonxml::decreasedepth($ntoken);
1120: return 1;
1.193 www 1121: }
1122:
1123: sub start_simpleeditbutton {
1124: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1125: my $result='';
1126: if (($target eq 'web') &&
1127: (&Apache::lonnet::allowed('srm',$ENV{'request.course.id'}))) {
1128: my $url=$ENV{'REQUEST_URI'};
1129: $url=~s/\?.*$//;
1.194 www 1130: $result='<table width="100%" bgcolor="#FFFFAA" border="2"><tr><td>'.
1.196 www 1131: '<a href="'.$url.'/smpedit">Simple Problem Editor</a> - Note: it can take up to 10 minutes for changes to take effect for all users.'.
1132: &Apache::loncommon::help_open_topic('Caching').'</td></tr></table><br />';
1.193 www 1133: }
1134: return $result;
1135: }
1136:
1137: sub end_simpleeditbutton {
1138: return '';
1.45 albertel 1139: }
1.34 albertel 1140:
1.1 albertel 1141: 1;
1142: __END__
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