loncom/homework/structuretags.pm - view

File: [LON-CAPA] / loncom / homework / structuretags.pm
Revision 1.202: download - view: text, annotated - select for diffs
Wed Aug 13 15:25:59 2003 UTC (20 years, 8 months ago) by sakharuk
Branches: MAIN
CVS tags: HEAD

Changes to print table of contents for the
1. Sequence of problems;
2. Sequence of files (problems/html/xml/...);
3. Sequence of all problems from the course;
4. Subdirectory;
with exact indication of numbers of pages where particular problem is printed.

1: # The LearningOnline Network with CAPA 2: # definition of tags that give a structure to a document 3: # 4: # $Id: structuretags.pm,v 1.202 2003/08/13 15:25:59 sakharuk Exp $ 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: # 28: # 2/19 Guy 29: # 6/26/2001 fixed extra web display at end of <web></web> tags 30: # 8/17,8/18,8/20 Gerd Kortemeyer 31: 32: 33: package Apache::structuretags; 34: 35: use strict; 36: use Apache::lonnet; 37: use Apache::File(); 38: use Apache::lonmenu; 39: 40: BEGIN { 41: &Apache::lonxml::register('Apache::structuretags',('block','languageblock','instructorcomment','while','randomlist','problem','library','web','tex','part','preduedate','postanswerdate','solved','notsolved','startouttext','endouttext', 42: 'simpleeditbutton','definetag')); 43: } 44: 45: sub start_web { 46: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; 47: my $bodytext=&Apache::lonxml::get_all_text("/web",$parser); 48: if ($target eq 'web') { 49: return $bodytext; 50: } 51: return ''; 52: } 53: 54: sub end_web { 55: return ''; 56: } 57: 58: sub start_tex { 59: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; 60: my $result=''; 61: my $bodytext=&Apache::lonxml::get_all_text("/tex",$parser); 62: if ($target eq 'tex') { 63: return $bodytext.' '; 64: } 65: return $result;; 66: } 67: 68: sub end_tex { 69: return ''; 70: } 71: 72: sub page_start { 73: my ($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: $safeeval); 94: if ($ENV{'browser.imagesuppress'} eq 'on') { $background=''; } 95: if ($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: $safeeval); 102: if (($bgcolor) && ($ENV{'browser.blackwhite'} ne 'on')) { 103: $body_tag_start.='bgcolor="'.$bgcolor.'" '; 104: } else { 105: $body_tag_start.='bgcolor="#ffffff"'; 106: } 107: } 108: if ($ENV{'browser.fontenhance'} eq 'on') { 109: $body_tag_start.=' style="font-size: x-large;" '; 110: } 111: $body_tag_start.='>'.&Apache::lonmenu::menubuttons(undef,$target,1); 112: if ($target eq 'web' && $ENV{'request.state'} ne 'construct') { 113: my ($symb,undef,undef,undef,$publicuser)= 114: &Apache::lonxml::whichuser(); 115: if ($symb eq '' && !$publicuser) { 116: my $help = &Apache::loncommon::help_open_topic("Ambiguous_Reference"); 117: $help="Browsing resource, all submissions are temporary.<br />"; 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,$form_tag_start); 128: } 129: 130: #use Time::HiRes(); 131: sub get_resource_name { 132: my ($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 $name; 140: } 141: 142: sub setup_rndseed { 143: my ($safeeval)=@_; 144: my $rndseed; 145: my ($symb)=&Apache::lonxml::whichuser(); 146: if ($ENV{'request.state'} eq "construct" || $symb eq '') { 147: $rndseed=$ENV{'form.rndseed'}; 148: if (!$rndseed) { 149: $rndseed=$Apache::lonhomework::history{'rndseed'}; 150: if (!$rndseed) { 151: $rndseed=time; 152: $ENV{'form.rndseed'}=$rndseed; 153: } 154: } 155: if ($ENV{'form.resetdata'} eq 'New Problem Variation' || 156: $ENV{'form.newrandomization'} eq 'New Randomization') { 157: srand(time); 158: $rndseed=int(rand(2100000000)); 159: $ENV{'form.rndseed'}=$rndseed; 160: delete($ENV{'form.resetdata'}); 161: delete($ENV{'form.newrandomization'}); 162: } 163: if (defined($rndseed) && $rndseed ne int($rndseed)) { 164: $rndseed=join(',',&Math::Random::random_seed_from_phrase($rndseed)); 165: } 166: &Apache::lonxml::debug("Setting rndseed to $rndseed"); 167: &Apache::run::run('$external::randomseed='.$rndseed.';',$safeeval); 168: } 169: return $rndseed; 170: } 171: 172: sub problem_edit_header { 173: return '<input type="hidden" name="submitted" value="edit" /> 174: <input type="hidden" name="problemmode" value="Edit" /> 175: <input type="submit" name="problemmode" value="Discard Edits and View" /> 176: <input type="submit" name="problemmode" value="EditXML" /> 177: <input type="submit" name="Undo" value="undo" /> <hr /> 178: <input type="submit" name="submit" value="Submit Changes and Edit" /> 179: <input type="submit" name="submit" value="Submit Changes and View" /><br /><p> </p><table border="0"><tr><td bgcolor="#DDDDDD"> 180: '; 181: } 182: 183: sub problem_edit_footer { 184: return '</td></tr></table><br /><input type="submit" name="submit" value="Submit Changes and Edit" /> 185: <input type="submit" name="submit" value="Submit Changes and View" />'; 186: } 187: 188: sub problem_web_to_edit_header { 189: my ($rndseed)=@_; 190: my $result.='<input type="hidden" name="problemmode" value="View" /> 191: <input type="submit" name="problemmode" value="Edit" /> 192: <input type="submit" name="problemmode" value="EditXML" /> 193: <input type="submit" name="newrandomization" value="New Randomization" /> 194: <input type="submit" name="resetdata" value="Reset Submissions" /> 195: <nobr><input type="submit" name="changerandseed" value="Change Random Seed To:" /> 196: <input type="text" name="rndseed" width="10" value="'. 197: $rndseed.'" 198: onChange="javascript:document.lonhomework.changerandseed.click()" /></nobr> 199: <input type="checkbox" name="showallfoils" '; 200: if (defined($ENV{'form.showallfoils'})) { $result.='checked="on"'; } 201: $result.= ' /> Show All Foils 202: <hr />'; 203: my $numtoanalyze=$ENV{'form.numtoanalyze'}; 204: if (!$numtoanalyze) { $numtoanalyze=20; } 205: $result.= '<input type="submit" name="problemmode" value="Calculate answers" /> for 206: <input type="text" name="numtoanalyze" value="'. 207: $numtoanalyze.'" size="5" /> versions of this problem.'. 208: &Apache::loncommon::help_open_topic("Analyze_Problem", 209: '',undef,undef,300). 210: '<hr />'; 211: return $result; 212: } 213: 214: sub initialize_storage { 215: %Apache::lonhomework::results=(); 216: %Apache::lonhomework::history=(); 217: my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser(); 218: if ($ENV{'request.state'} eq 'construct' || $symb eq '') { 219: %Apache::lonhomework::history= 220: &Apache::lonnet::tmprestore($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,$name); 226: } 227: #ignore error conditions 228: my ($temp)=keys %Apache::lonhomework::history ; 229: if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); } 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 { 237: my $result; 238: my ($temp) = keys %Apache::lonhomework::results; 239: if ( $temp ne '' ) { 240: my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser(); 241: if ($ENV{'request.state'} eq 'construct' || $symb eq '') { 242: $Apache::lonhomework::results{'rndseed'}=$ENV{'form.rndseed'}; 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: } 251: } 252: return $result; 253: } 254: 255: sub checkout_msg { 256: return (<<ENDCHECKOUT); 257: <h2>The resource needs to be checked out</h2> 258: As a resource gets checked out, a unique timestamped ID is given to it, and a 259: permanent record is left in the system.<p /> 260: <font color=red> 261: Checking out resources is subject to course policies, and may exclude future 262: credit even if done erroneously.<p /> 263: </font> 264: <form name="checkout" method="POST" action="$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(); }" /> 267: </form> 268: ENDCHECKOUT 269: } 270: 271: sub start_problem { 272: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; 273: 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); 278: return ''; 279: } 280: 281: $Apache::lonhomework::parsing_a_problem=1; 282: #initialize globals 283: $Apache::inputtags::part='0'; 284: @Apache::inputtags::partlist=('0'); 285: @Apache::inputtags::responselist = (); 286: @Apache::inputtags::importlist = (); 287: @Apache::inputtags::previous=(); 288: @Apache::inputtags::previous_version=(); 289: $Apache::structuretags::printanswer='No'; 290: @Apache::structuretags::whileconds=(); 291: @Apache::structuretags::whilebody=(); 292: @Apache::structuretags::whileline=(); 293: $Apache::lonhomework::scantronmode=0; 294: $Apache::lonhomework::problemstatus= 295: &Apache::lonnet::EXT('resource.0.problemstatus'); 296: 297: if (defined($ENV{'scantron.maxquest'})) { 298: $Apache::lonhomework::scantronmode=1; 299: } 300: 301: if ($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: } 309: if ($Apache::lonhomework::type eq '' ) { 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: } 318: } 319: 320: #added vars to the scripting enviroment 321: my $expression='$external::part='.$Apache::inputtags::part.';'; 322: &Apache::run::run($expression,$safeeval); 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); 344: } 345: 346: #handle rand seed in construction space 347: my $rndseed=&setup_rndseed($safeeval); 348: my ($symb)=&Apache::lonxml::whichuser(); 349: if ($ENV{'request.state'} ne "construct" && $symb eq '') { 350: $form_tag_start.='<input type="hidden" name="rndseed" value="'. 351: $rndseed.'" />'. 352: '<input type="submit" name="resetdata" 353: value="New Problem Variation" />'. 354: '<input type="hidden" name="username" 355: value="'.$ENV{'form.username'}.'" /> <br />'; 356: } 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> 395: $body_tag_start \n $form_tag_start". 396: '<input type="hidden" name="submitted" value="yes" />'; 397: if ($ENV{'request.state'} eq "construct") { 398: $result.= &problem_web_to_edit_header($ENV{'form.rndseed'}); 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') { 413: my $startminipage = ''; 414: if (not $ENV{'form.problem_split'}=~/yes/) { 415: $startminipage = '\begin{minipage}{\textwidth}'; 416: } 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') { 451: $result .= '\begin{document} \typeout{STAMPOFPASSEDRESOURCESTART Resource <h2>"'.$name_of_resourse.'"</h2> located in <br /><small><b>'.$ENV{'request.uri'}.'</b></small><br /> STAMPOFPASSEDRESOURCEEND}\addcontentsline{toc}{subsection}{'.$name_of_resourse.'} \noindent\textit{Due date: '.$duedate.'} \vskip 1 mm\noindent '.$startminipage; 452: } else { 453: $result .= '\begin{document} \typeout{STAMPOFPASSEDRESOURCESTART Resource <h2>"'.$name_of_resourse.'"</h2> located in <br /><small><b>'.$ENV{'request.uri'}.'</b></small><br /> STAMPOFPASSEDRESOURCEEND}\addcontentsline{toc}{subsection}{'.$name_of_resourse.'} \noindent \vskip 1 mm \noindent'.$startminipage; 454: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) { $result .= '\fbox{\textit{'.$weight.' pt}}';} 455: } 456: } else { 457: $result .= '\vskip 1mm\textit{Due date: '.$duedate.'} \\\\\\\\'; 458: } 459: } else { 460: if (not $ENV{'request.symb'} =~ m/\.page_/) { 461: $result .= '\begin{document} \typeout{STAMPOFPASSEDRESOURCESTART Resource <h2>"'.$name_of_resourse.'"</h2> located in <br /><small><b>'.$ENV{'request.uri'}.'</b></small><br /> STAMPOFPASSEDRESOURCEEND}\addcontentsline{toc}{subsection}{'.$name_of_resourse.'} \noindent \vskip 1 mm\noindent'.$startminipage; 462: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) { $result .= '\fbox{\textit{'.$weight.' pt}}';} 463: } else { 464: $result .= '\vskip 1mm \\\\\\\\'; 465: } 466: } 467: } 468: } elsif ($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 = ''; 479: } 480: return $result; 481: } 482: 483: sub end_problem { 484: my ($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') { 506: if ($target ne 'tex' && 507: $ENV{'form.answer_output_mode'} ne 'tex') { 508: $result.="</form></body>\n"; 509: } 510: } elsif ($status eq 'SHOW_ANSWER' || $status eq 'CANNOT_ANSWER' || 511: $status eq 'UNCHECKEDOUT' ) { 512: if ($target ne 'tex' && 513: $ENV{'form.answer_output_mode'} ne 'tex') { 514: $result.="</body>\n"; 515: } 516: } 517: if ($target eq 'web') { 518: $result.=&Apache::lonxml::xmlend(); 519: } elsif ($target eq 'tex') { 520: my $endminipage = ''; 521: if (not $ENV{'form.problem_split'}=~/yes/) { 522: $endminipage = '\end{minipage}'; 523: } 524: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}'; 525: if (not $ENV{'request.symb'} =~ m/\.page_/) { 526: $result .= $endminipage.'\end{document} '; 527: } else { 528: $result .= ''; 529: } 530: } 531: } 532: if ($target eq 'grade') { 533: &Apache::lonhomework::showhash(%Apache::lonhomework::results); 534: &finalize_storage(); 535: } 536: if ($target eq 'answer' && ($ENV{'request.state'} eq 'construct') 537: && $ENV{'form.answer_output_mode'} ne 'tex') { 538: $result.='</html>'; # normally we get it from xmlend, but in CSTR 539: # we always show answer mode too. 540: } 541: } elsif ($target eq 'meta') { 542: if ($Apache::inputtags::part eq '0') { 543: @Apache::inputtags::response=(); 544: $result=&Apache::response::mandatory_part_meta; 545: } 546: } elsif ($target eq 'edit') { 547: &Apache::lonxml::debug("in end_problem with $target, edit"); 548: $result = &problem_edit_footer(); 549: } 550: 551: if ($ENV{'request.state'} eq 'construct' && $target eq 'web') { 552: &Apache::inputtags::check_for_duplicate_ids(); 553: } 554: undef(%Apache::lonhomework::history); 555: undef(%Apache::lonhomework::results); 556: undef($Apache::inputtags::part); 557: undef($Apache::lonhomework::parsing_a_problem); 558: 559: return $result; 560: } 561: 562: 563: sub start_library { 564: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; 565: my ($result,$head_tag_start,$body_tag_start,$form_tag_start); 566: 567: if ($target eq 'edit') { 568: ($result,$head_tag_start,$body_tag_start,$form_tag_start)= 569: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval); 570: $result.=$head_tag_start."</head>".$body_tag_start.$form_tag_start. 571: &problem_edit_header(); 572: my $temp=&Apache::edit::insertlist($target,$token); 573: $result.=$temp; 574: } elsif ($target eq 'modified') { 575: $result=$token->[4]; 576: $result.=&Apache::edit::handle_insert(); 577: } elsif ($target eq 'web' && $$tagstack[0] ne 'problem' && 578: $ENV{'request.state'} eq "construct" ) { 579: ($result,$head_tag_start,$body_tag_start,$form_tag_start)= 580: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval); 581: my $name=&get_resource_name($parstack,$safeeval); 582: my $rndseed=&setup_rndseed($safeeval); 583: $result.="$head_tag_start<title>$name</title></head> 584: $body_tag_start \n $form_tag_start". 585: '<input type="hidden" name="submitted" value="yes" />'; 586: $result.=&problem_web_to_edit_header($rndseed); 587: } 588: return $result; 589: } 590: 591: sub end_library { 592: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; 593: my $result=''; 594: if ($target eq 'edit') { 595: $result=&problem_edit_footer(); 596: } elsif ($target eq 'web' && $$tagstack[0] ne 'problem' && 597: $ENV{'request.state'} eq "construct") { 598: $result.='</form></body>'.&Apache::lonxml::xmlend(); 599: } 600: return $result; 601: } 602: 603: sub start_definetag { 604: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; 605: 606: my $result; 607: 608: my $name = $token->[2]->{'name'}; 609: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser); 610: if ($name=~/^\//) { 611: $result= 612: '<br /><table bgcolor="#FFBBBB"><tr><th>END <tt>'.$name.'</tt></th></tr>'; 613: } else { 614: $result= 615: '<br /><table bgcolor="#BBFFBB"><tr><th>BEGIN <tt>'.$name.'</tt></th></tr>'; 616: } 617: $skip=~s/\</\&lt\;/gs; 618: $skip=~s/\>/\&gt\;/gs; 619: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>'; 620: return $result; 621: } 622: 623: sub end_definetag { 624: return ''; 625: } 626: 627: sub start_block { 628: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; 629: 630: my $result; 631: 632: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' || 633: $target eq 'tex' || $target eq 'analyze') { 634: my $code = $token->[2]->{'condition'}; 635: if (defined($code)) { 636: if (!$Apache::lonxml::default_homework_loaded) { 637: &Apache::lonxml::default_homework_load($safeeval); 638: } 639: $result = &Apache::run::run($code,$safeeval); 640: &Apache::lonxml::debug("block :$code: returned :$result:"); 641: } else { 642: $result='1'; 643: } 644: if ( ! $result ) { 645: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style); 646: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]"); 647: } 648: $result=''; 649: } elsif ($target eq 'edit') { 650: $result .=&Apache::edit::tag_start($target,$token); 651: $result .=&Apache::edit::text_arg('Test Condition:','condition', 652: $token,40); 653: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row(); 654: } elsif ($target eq 'modified') { 655: my $constructtag=&Apache::edit::get_new_args($token,$parstack, 656: $safeeval,'condition'); 657: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); } 658: } 659: return $result; 660: } 661: 662: sub end_block { 663: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; 664: my $result; 665: if ($target eq "edit") { 666: $result.= &Apache::edit::tag_end($target,$token,''); 667: } 668: return $result; 669: } 670: 671: sub start_languageblock { 672: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_; 673: 674: my $result; 675: 676: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' || 677: $target eq 'tex' || $target eq 'analyze') { 678: my $include = $token->[2]->{'include'}; 679: my $exclude = $token->[2]->{'exclude'}; 680: my %languages=&Apache::loncommon::display_languages(); 681: $result='1'; 682: if ($include) { 683: $result=''; 684: foreach (split(/\,/,$include)) { 685: if ($languages{$_}) { $result='1'; } 686: } 687: } 688: if ($exclude) { 689: foreach (split(/\,/,$exclude)) { 690: if ($languages{$_}) { $result='0'; } 691: } 692: } 693: if ( ! $result ) { 694: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser, 695: $style); 696: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]"); 697: } 698: $result=''; 699: } elsif ($target eq 'edit') { 700: $result .=&Apache::edit::tag_start($target,$token); 701: $result .=&Apache::edit::text_arg('Include Language:','include', 702: $token,40); 703: $result .=&Apache::edit::text_arg('Exclude Language:','exclude', 704: $token,40); 705: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row(); 706: } elsif ($target eq 'modified') { 707: my $constructtag=&Apache::edit::get_new_args($token,$parstack, 708: $safeeval,'include', 709: 'exclude'); 710: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); } 711: } 712: return $result; 713: } 714: 715: sub end_languageblock { 716: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; 717: my $result; 718: if ($target eq "edit") { 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,$safeeval,$style)=@_; 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", 734: $parser,$style); 735: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]"); 736: } 737: $result=''; 738: } elsif ($target eq 'edit') { 739: $result .=&Apache::edit::tag_start($target,$token); 740: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row(); 741: } 742: return $result; 743: } 744: 745: sub end_instructorcomment { 746: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; 747: my $result; 748: if ($target eq "edit") { 749: $result.= &Apache::edit::tag_end($target,$token,''); 750: } 751: return $result; 752: } 753: 754: sub start_while { 755: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; 756: 757: my $result; 758: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' || 759: $target eq 'tex' || $target eq 'analyze') { 760: my $code = $token->[2]->{'condition'}; 761: 762: push( @Apache::structuretags::whileconds, $code); 763: if (!$Apache::lonxml::default_homework_loaded) { 764: &Apache::lonxml::default_homework_load($safeeval); 765: } 766: my $result = &Apache::run::run($code,$safeeval); 767: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser); 768: push( @Apache::structuretags::whilebody, $bodytext); 769: push( @Apache::structuretags::whileline, $token->[5]); 770: &Apache::lonxml::debug("s code $code got -$result-"); 771: if ( $result ) { 772: &Apache::lonxml::newparser($parser,\$bodytext); 773: } 774: } elsif ($target eq 'edit') { 775: $result .=&Apache::edit::tag_start($target,$token); 776: $result .=&Apache::edit::text_arg('Test Condition:','condition', 777: $token,40); 778: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row(); 779: } elsif ($target eq 'modified') { 780: my $constructtag=&Apache::edit::get_new_args($token,$parstack, 781: $safeeval,'condition'); 782: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); } 783: } 784: return $result; 785: } 786: 787: sub end_while { 788: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; 789: my $result; 790: 791: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' || 792: $target eq 'tex' || $target eq 'analyze') { 793: my $code = pop(@Apache::structuretags::whileconds); 794: my $bodytext = pop(@Apache::structuretags::whilebody); 795: my $line = pop(@Apache::structuretags::whileline); 796: my $return = &Apache::run::run($code,$safeeval); 797: my $starttime=time; 798: my $error=0; 799: while ($return) { 800: if (time-$starttime > 801: $Apache::lonnet::perlvar{'lonScriptTimeout'}) { 802: $return = 0; $error=1; next; 803: } 804: $result.=&Apache::scripttag::xmlparse($bodytext); 805: $return = &Apache::run::run($code,$safeeval); 806: } 807: if ($error) { 808: &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>'); 809: } 810: } elsif ($target eq "edit") { 811: $result.= &Apache::edit::tag_end($target,$token,''); 812: } 813: return $result; 814: } 815: 816: # <randomlist show="1"> 817: # <tag1>..</tag1> 818: # <tag2>..</tag2> 819: # <tag3>..</tag3> 820: # ... 821: # </randomlist> 822: sub start_randomlist { 823: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; 824: my $result; 825: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' || 826: $target eq 'tex' || $target eq 'analyze') { 827: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser); 828: my $b_parser= HTML::TokeParser->new(\$body); 829: my $b_tok; 830: my @randomlist; 831: my $list_item; 832: while($b_tok = $b_parser->get_token() ) { 833: if($b_tok->[0] eq 'S') { # start tag 834: # get content of the tag until matching end tag 835: # get all text upto the matching tag 836: # and push the content into @randomlist 837: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1], 838: $b_parser); 839: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>"; 840: push(@randomlist,$list_item); 841: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4], 842: # $list_item</b>"; 843: } 844: if($b_tok->[0] eq 'T') { # text 845: # what to do with text in between tags? 846: # print "<b>TEXT $b_tok->[1]</b><br />"; 847: } 848: # if($b_tok->[0] eq 'E') { # end tag, should not happen 849: # print "<b>END-TAG $b_tok->[1]</b><br />"; 850: # } 851: } 852: my @idx_arr = (0 .. $#randomlist); 853: &Apache::structuretags::shuffle(\@idx_arr); 854: my $bodytext = ''; 855: my $show=$#randomlist; 856: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval); 857: $showarg--; 858: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; } 859: for(0 .. $show) { 860: $bodytext .= "$randomlist[ $idx_arr[$_] ]"; 861: } 862: &Apache::lonxml::newparser($parser,\$bodytext); 863: } elsif ($target eq 'edit' ) { 864: $result .=&Apache::edit::tag_start($target,$token); 865: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show', 866: $token,5); 867: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row(); 868: } elsif ($target eq 'modified' ) { 869: my $constructtag=&Apache::edit::get_new_args($token,$parstack, 870: $safeeval,'show'); 871: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); } 872: } 873: return $result; 874: } 875: 876: sub shuffle { 877: my $a=shift; 878: my $i; 879: if (defined(@$a)) { 880: &Apache::response::setrandomnumber(); 881: for($i=@$a;--$i;) { 882: my $j=int(&Math::Random::random_uniform() * ($i+1)); 883: next if $i == $j; 884: @$a[$i,$j] = @$a[$j,$i]; 885: } 886: } 887: } 888: 889: sub end_randomlist { 890: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; 891: my $result; 892: if ($target eq 'edit' ) { 893: $result=&Apache::edit::tag_end($target,$token, 894: 'End Randomly Parsed Block'); 895: } 896: return $result; 897: } 898: 899: sub start_part { 900: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; 901: my $result=''; 902: my $id= &Apache::lonxml::get_param('id',$parstack,$safeeval); 903: if ($id eq '') { $id = $Apache::lonxml::curdepth; } 904: $Apache::inputtags::part=$id; 905: push(@Apache::inputtags::partlist,$id); 906: @Apache::inputtags::response=(); 907: @Apache::inputtags::previous=(); 908: @Apache::inputtags::previous_version=(); 909: $Apache::lonhomework::problemstatus= 910: &Apache::lonnet::EXT("resource.$id.problemstatus"); 911: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part); 912: 913: if ($target eq 'meta') { 914: return &Apache::response::mandatory_part_meta; 915: } elsif ($target eq 'web' || $target eq 'grade' || 916: $target eq 'answer' || $target eq 'tex') { 917: if ($hidden) { 918: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser); 919: } else { 920: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id); 921: push (@Apache::inputtags::status,$status); 922: my $expression='$external::datestatus="'.$status.'";'; 923: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";'; 924: &Apache::run::run($expression,$safeeval); 925: if ( $status eq 'CLOSED' ) { 926: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser); 927: if ( $target eq "web" ) { 928: $result="<br />Part is not open to be viewed. It $accessmsg<br />"; 929: } elsif ( $target eq 'tex' ) { 930: if (not $ENV{'form.problem_split'}=~/yes/) { 931: $result="\\end{minipage}\\vskip 0 mm Part is not open to be viewed. It $accessmsg \\\\\\begin{minipage}{\\textwidth}"; 932: } else { 933: $result="\\vskip 0 mm Part is not open to be viewed. It $accessmsg \\\\"; 934: } 935: } 936: } else { 937: if ($target eq 'tex') { 938: if (not $ENV{'form.problem_split'}=~/yes/) { 939: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent'; 940: } 941: my $weight = &Apache::lonnet::EXT("resource.$id.weight"); 942: if ($Apache::lonhomework::type eq 'exam') { $result .= '\fbox{\textit{'.$weight.' pt}}';} 943: } 944: } 945: } 946: } elsif ($target eq 'edit') { 947: $result.=&Apache::edit::tag_start($target,$token); 948: $result.=&Apache::edit::text_arg('Part ID:','id',$token). 949: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help"). 950: &Apache::edit::end_row().&Apache::edit::start_spanning_row(); 951: } elsif ($target eq 'modified') { 952: my $constructtag=&Apache::edit::get_new_args($token,$parstack, 953: $safeeval,'id'); 954: if ($constructtag) { 955: $result = &Apache::edit::rebuild_tag($token); 956: $result.=&Apache::edit::handle_insert(); 957: } 958: } 959: return $result; 960: } 961: 962: sub end_part { 963: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; 964: &Apache::lonxml::debug("in end_part $target "); 965: my $status=$Apache::inputtags::status['-1']; 966: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part); 967: my $result=''; 968: if ( $target eq 'meta' ) { 969: $result=''; 970: } elsif ( $target eq 'grade' && $status eq 'CAN_ANSWER' && !$hidden) { 971: $result=&Apache::inputtags::grade; 972: } elsif (($target eq 'web' || $target eq 'tex') && !$hidden ) { 973: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part, 974: $target); 975: if ($Apache::lonhomework::type eq 'exam') {$gradestatus='';} 976: $result=$gradestatus; 977: } elsif ($target eq 'edit') { 978: $result=&Apache::edit::end_table(); 979: } 980: pop @Apache::inputtags::status; 981: $Apache::inputtags::part=''; 982: return $result; 983: } 984: 985: sub start_preduedate { 986: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; 987: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' || $target eq 'tex') { 988: if ($Apache::inputtags::status['-1'] ne 'CAN_ANSWER' && 989: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER' && 990: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER') { 991: &Apache::lonxml::get_all_text("/preduedate",$parser); 992: } 993: } 994: return ''; 995: } 996: 997: sub end_preduedate { 998: return ''; 999: } 1000: 1001: sub start_postanswerdate { 1002: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; 1003: if ($target eq 'web' || $target eq 'grade' || $target eq 'tex') { 1004: if ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER') { 1005: &Apache::lonxml::get_all_text("/postanswerdate",$parser); 1006: } 1007: } elsif ($target eq 'tex') { 1008: return '\vskip 0 mm \noindent'; 1009: } 1010: return ''; 1011: } 1012: 1013: sub end_postanswerdate { 1014: return ''; 1015: } 1016: 1017: sub start_notsolved { 1018: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; 1019: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' || 1020: $target eq 'tex') { 1021: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"}; 1022: &Apache::lonxml::debug("not solved has :$gradestatus:"); 1023: if ($gradestatus =~ /^correct/) { 1024: &Apache::lonxml::debug("skipping"); 1025: &Apache::lonxml::get_all_text("/notsolved",$parser); 1026: } 1027: } 1028: return ''; 1029: } 1030: 1031: sub end_notsolved { 1032: return ''; 1033: } 1034: 1035: sub start_solved { 1036: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; 1037: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' || 1038: $target eq 'tex') { 1039: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"}; 1040: if ($gradestatus !~ /^correct/) { 1041: &Apache::lonxml::get_all_text("/solved",$parser); 1042: } 1043: } 1044: return ''; 1045: } 1046: 1047: sub end_solved { 1048: return ''; 1049: } 1050: 1051: sub start_startouttext { 1052: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; 1053: my @result=(''.''); 1054: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); } 1055: return (@result); 1056: } 1057: 1058: sub end_startouttext { 1059: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; 1060: my $result=''; 1061: my $text=''; 1062: 1063: if ($target eq 'edit') { 1064: $text=&Apache::lonxml::get_all_text("endouttext",$parser); 1065: $result.=&Apache::edit::start_table($token)."<tr><td>Text Block</td> 1066: <td>Delete:". 1067: &Apache::edit::deletelist($target,$token) 1068: ."</td> 1069: <td>". 1070: &Apache::edit::insertlist($target,$token). 1071: &Apache::edit::end_row(). 1072: &Apache::edit::start_spanning_row()."\n" 1073: . &Apache::loncommon::helpLatexCheatsheet () . 1074: &Apache::edit::editfield($token->[1],$text,"",80,4); 1075: } 1076: if ($target eq 'modified') { 1077: $text=&Apache::lonxml::get_all_text("endouttext",$parser); 1078: $result='<startouttext />'.&Apache::edit::modifiedfield(); 1079: } 1080: if ($target eq 'tex') { 1081: $result .= '\noindent '; 1082: } 1083: return $result; 1084: } 1085: 1086: sub start_endouttext { 1087: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; 1088: my $result=''; 1089: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; } 1090: if ($target eq "modified") { 1091: $result='<endouttext />'. 1092: &Apache::edit::handle_insertafter('startouttext'); } 1093: return $result; 1094: } 1095: 1096: sub end_endouttext { 1097: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; 1098: my @result=('',''); 1099: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); } 1100: return (@result); 1101: } 1102: 1103: sub delete_startouttext { 1104: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; 1105: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser); 1106: my $text=$$parser['-1']->get_text("/endouttext"); 1107: my $ntoken=$$parser['-1']->get_token(); 1108: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext"); 1109: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken); 1110: # Deleting 2 parallel tag pairs, but we need the numbers later to look like 1111: # they did the last time round 1112: &Apache::lonxml::increasedepth($ntoken); 1113: &Apache::lonxml::decreasedepth($ntoken); 1114: return 1; 1115: } 1116: 1117: sub start_simpleeditbutton { 1118: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_; 1119: my $result=''; 1120: if (($target eq 'web') && 1121: (&Apache::lonnet::allowed('srm',$ENV{'request.course.id'}))) { 1122: my $url=$ENV{'REQUEST_URI'}; 1123: $url=~s/\?.*$//; 1124: $result='<table width="100%" bgcolor="#FFFFAA" border="2"><tr><td>'. 1125: '<a href="'.$url.'/smpedit">Simple Problem Editor</a> - Note: it can take up to 10 minutes for changes to take effect for all users.'. 1126: &Apache::loncommon::help_open_topic('Caching').'</td></tr></table><br />'; 1127: } 1128: return $result; 1129: } 1130: 1131: sub end_simpleeditbutton { 1132: return ''; 1133: } 1134: 1135: 1; 1136: __END__