Annotation of loncom/xml/scripttag.pm, revision 1.152

1.1       albertel    1: # The LearningOnline Network with CAPA
                      2: # <script> definiton
1.58      www         3: #
1.152   ! faziophi    4: # $Id: scripttag.pm,v 1.151 2008/12/11 21:28:59 raeburn Exp $
1.58      www         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: #
1.116     www        28: 
1.47      albertel   29: package Apache::scripttag;
1.1       albertel   30: 
                     31: use strict;
1.3       albertel   32: use Apache::lonnet;
1.145     albertel   33: use Apache::lonlocal;
                     34: use Apache::style();
1.1       albertel   35: 
1.47      albertel   36: #Globals
                     37: # this used to pass around the standard callsub arguments to a tag func
                     38: # so xmlparse can reenter the inner_xmlparse loop.
                     39: 
                     40: @Apache::scripttag::parser_env = ();
1.61      harris41   41: BEGIN {
1.62      albertel   42:   &Apache::lonxml::register('Apache::scripttag',
                     43: 			    ('script','scriptlib','parserlib','import',
                     44: 			     'window','display','storetc','physnet',
1.123     albertel   45: 			     'standalone','comment','num','parse','algebra',
1.86      albertel   46: 			     'LONCAPA_INTERNAL_TURN_STYLE_ON',
1.150     raeburn    47: 			     'LONCAPA_INTERNAL_TURN_STYLE_OFF'));
1.81      albertel   48: }
                     49: 
                     50: sub start_LONCAPA_INTERNAL_TURN_STYLE_ON {
                     51:     $Apache::lonxml::usestyle=1;
1.89      albertel   52:     $Apache::lonxml::style_values='';
1.81      albertel   53:     return ('','no');
                     54: }
                     55: 
                     56: sub end_LONCAPA_INTERNAL_TURN_STYLE_ON {
1.91      albertel   57:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
                     58:     my $end=&Apache::lonxml::get_param('end',$parstack,$safeeval);
                     59:     if (defined($end)) {
                     60: 	&Apache::lonxml::end_tag($tagstack,$parstack,$token);
                     61:     }
1.100     albertel   62:     return ('','no');
                     63: }
                     64: 
                     65: sub start_LONCAPA_INTERNAL_TURN_STYLE_OFF {
                     66:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
                     67:     $Apache::lonxml::usestyle=0;
                     68:     my $end=&Apache::lonxml::get_param('end',$parstack,$safeeval);
                     69:     if (!$end) {
                     70: 	$Apache::lonxml::style_values=$$parstack[-1];
                     71: 	$Apache::lonxml::style_end_values=$$parstack[-1];
                     72:     } else {
                     73: 	$Apache::lonxml::style_values=$Apache::lonxml::style_end_values;
                     74: 	$Apache::lonxml::style_end_values='';
                     75:     }
                     76:     return ('','no');
                     77: }
                     78: 
                     79: sub end_LONCAPA_INTERNAL_TURN_STYLE_OFF {
1.86      albertel   80:     return ('','no');
                     81: }
                     82: 
1.1       albertel   83: sub start_script {
1.40      albertel   84:   my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.47      albertel   85:   @Apache::scripttag::parser_env = @_;
1.24      albertel   86:   my $result='';
1.39      albertel   87:   my $type= &Apache::lonxml::get_param('type',$parstack,$safeeval);
                     88:   &Apache::lonxml::debug("found type of $type");
1.17      albertel   89:   if ($type eq "loncapa/perl") {
                     90:     if ( $target eq "modified" ) {
1.103     albertel   91: 	$result=$token->[4].&Apache::edit::modifiedfield('/script',$parser);
1.54      albertel   92:     } elsif ( $target eq 'web' || $target eq 'tex' ||
1.130     albertel   93: 	      $target eq 'grade' || $target eq 'webgrade' ||
                     94: 	      $target eq 'answer' || $target eq 'analyze' ) {
1.107     albertel   95: 	my $bodytext=&Apache::lonxml::get_all_text_unbalanced("/script",$parser);
1.79      albertel   96: 	if (!$Apache::lonxml::default_homework_loaded) {
                     97: 	    &Apache::lonxml::default_homework_load($safeeval);
                     98: 	}
                     99: 	&Apache::run::run($bodytext,$safeeval);
1.88      albertel  100: 	if (($target eq 'answer') &&
1.126     albertel  101: 	    ($env{'form.answer_output_mode'} ne 'tex') &&
1.88      albertel  102: 	    ($Apache::lonhomework::viewgrades == 'F')) {
1.79      albertel  103: 	    $Apache::lonxml::evaluate--;
1.138     albertel  104: 	    my (undef,undef,$udom,$uname)=&Apache::lonnet::whichuser();
1.118     www       105: 	    my $windowopen=&Apache::lonhtmlcommon::javascript_docopen();
1.135     albertel  106: 	    my $start_page =
                    107: 		&Apache::loncommon::start_page('Script Vars', undef,
                    108: 					       {'only_body' => 1,
                    109: 						'bgcolor'   => '#FFFFFF',
                    110: 						'js_ready'  => 1,});
                    111: 	    my $end_page =
                    112: 		&Apache::loncommon::end_page({'js_ready' => 1,});
                    113: 
1.140     albertel  114: 	    $uname =~s/\W//g;
                    115: 	    $udom  =~s/\W//g;
1.145     albertel  116: 	    my $function_name = 
                    117: 		join('_','LONCAPA_scriptvars',$uname,$udom,
                    118: 		     $env{'form.counter'},$Apache::lonxml::curdepth);
1.141     albertel  119: 	    my $script_var ="<script type=\"text/javascript\">
1.124     albertel  120: // <![CDATA[
1.145     albertel  121:     function $function_name() {newWindow=open('','new_W','width=500,height=500,scrollbars=1,resizable=yes');newWindow.$windowopen;newWindow.document.writeln('$start_page<pre>";
1.99      albertel  122: 	    my $listing=&Apache::run::dump($target,$safeeval);
1.128     albertel  123: 	    $listing=~s/\\/\\\\/g;
1.99      albertel  124: 	    $listing=~s/\'/\\\'/g;
1.141     albertel  125: 	    $script_var.=$listing;
                    126: 	    $script_var.= "<\\/pre>$end_page');newWindow.document.close();newWindow.focus()}
1.124     albertel  127: // ]]>
1.145     albertel  128: </script><a href=\"javascript:$function_name();void(0);\">".&mt('Script Vars')."</a><br />";
1.141     albertel  129: 	    &Apache::lonxml::add_script_result($script_var);
1.79      albertel  130: 	}
1.28      albertel  131:     } elsif ($target eq "edit" ) {
1.41      albertel  132:       #&Apache::run::run($bodytext,$safeeval);
                    133:       #$result="<br /> &lt;$token->[1]&gt; output: <br />$bodytext<br />Source:<br />";
1.107     albertel  134: 	my $bodytext=&Apache::lonxml::get_all_text_unbalanced("/script",$parser);
1.103     albertel  135: 	$result=&Apache::edit::tag_start($target,$token,'Script');
                    136: 	$result.=&Apache::edit::editfield($token->[1],$bodytext,'',80,4);
1.107     albertel  137:     } elsif ($target eq 'meta') {
                    138: 	my $bodytext=&Apache::lonxml::get_all_text_unbalanced("/script",$parser);
1.17      albertel  139:     }
                    140:   } else {
1.108     matthew   141:       my $bodytext=&Apache::lonxml::get_all_text_unbalanced("/script",$parser);
1.144     albertel  142:       if ($target ne "meta" && $target ne 'tex' && $target ne 'answer') {
1.112     albertel  143: 	  $result = $token->[4];
                    144: 	  $result.=$bodytext;
                    145:       }
1.13      albertel  146:   }
1.24      albertel  147:   return $result;
1.17      albertel  148: }
1.13      albertel  149: 
1.17      albertel  150: sub end_script {
1.40      albertel  151:   my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.28      albertel  152:   if ( $target eq "meta" ) { return ''; } 
1.39      albertel  153:   my $type = &Apache::lonxml::get_param('type',$parstack,$safeeval);
1.29      albertel  154:   my $result='';
                    155:   #other script blocks need to survive
1.115     albertel  156:   if ($type ne "loncapa/perl" && $target ne 'tex') {
1.53      albertel  157:     return $token->[2];
                    158:   } elsif ($target eq 'edit' ) {
                    159:     return &Apache::edit::end_table();
1.78      albertel  160:   } elsif ($target eq 'answer') {
1.53      albertel  161:     $Apache::lonxml::evaluate++;
                    162:   }
1.28      albertel  163:   return '';
1.24      albertel  164: }
                    165: 
                    166: sub start_display {
1.40      albertel  167:   my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.119     albertel  168:   @Apache::scripttag::parser_env = @_;
1.48      albertel  169:   my $result;
1.39      albertel  170: 
1.24      albertel  171:   if ( $target eq "modified" ) {
1.103     albertel  172:       $result=$token->[4].&Apache::edit::modifiedfield("/display",$parser);
1.54      albertel  173:   } elsif ( $target eq 'web' || $target eq 'tex' ||
1.130     albertel  174: 	    $target eq 'grade' || $target eq 'webgrade' ||
                    175: 	    $target eq 'answer' || $target eq 'analyze') {
1.107     albertel  176:       my $bodytext=&Apache::lonxml::get_all_text_unbalanced("/display",$parser);
1.80      albertel  177:       if (!$Apache::lonxml::default_homework_loaded) {
                    178: 	  &Apache::lonxml::default_homework_load($safeeval);
                    179:       }
                    180:       $result=&Apache::run::run($bodytext,$safeeval);
                    181:       if ($target eq 'grade' || $target eq 'answer' ||
                    182: 	  $target eq 'analyze') {
1.114     albertel  183: 	  # grade/answer/analyxe should produce no output but if we
                    184: 	  # are redirecting, the redirecter should know what to do
                    185: 	  # with the output
                    186: 	  if (!$Apache::lonxml::redirection) { $result=''; }
1.80      albertel  187:       }
1.101     albertel  188:       $Apache::lonxml::post_evaluate=0;
1.48      albertel  189:   } elsif ($target eq "edit" ) {
1.110     albertel  190:     my $bodytext=&Apache::lonxml::get_all_text_unbalanced("/display",$parser);
1.48      albertel  191:     #$result = 
                    192:     #  "<br /> &lt;$token->[1]&gt; output: <br />$bodytext<br />Source:<br />";
                    193:     #$result.=&Apache::edit::editfield($token->[1],$bodytext,'',40,1);
                    194:     $result=&Apache::edit::tag_start($target,$token,'Script With Display');
1.77      albertel  195:     $result.=&Apache::edit::editfield($token->[1],$bodytext,'',80,1)
1.107     albertel  196:   } elsif ($target eq 'meta') {
                    197:       my $bodytext=&Apache::lonxml::get_all_text_unbalanced("/display",$parser);
1.24      albertel  198:   }
                    199:   return $result;
                    200: }
                    201: 
                    202: sub end_display {
1.48      albertel  203:   my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
                    204:   if ($target eq 'edit' ) { return &Apache::edit::end_table(); }
                    205:   return '';
1.1       albertel  206: }
1.3       albertel  207: 
                    208: sub start_scriptlib {
1.40      albertel  209:   my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.37      albertel  210:   my $bodytext;
                    211:   my $result ='';
                    212:   my $error='';
                    213: 
1.106     albertel  214:   if ($target eq 'web' || $target eq 'tex' || $target eq 'grade' ||
                    215:       $target eq 'meta' || $target eq 'edit' || $target eq 'answer' ||
1.137     albertel  216:       $target eq 'analyze' || $target eq 'webgrade') {
1.37      albertel  217:     $bodytext=$$parser[$#$parser]->get_text("/scriptlib");
                    218:     $bodytext=&Apache::run::evaluate($bodytext,$safeeval,
                    219: 				     $$parstack[$#$parstack]);
                    220:     my $location=&Apache::lonnet::filelocation($Apache::lonxml::pwd['-1'],
                    221: 					       $bodytext);
                    222:     my $script=&Apache::lonnet::getfile($location);
                    223:     if ($script == -1) {
                    224:       if ($target eq 'edit') {
1.145     albertel  225:         $error='</tr><tr><td>'.&mt('Errors').'</td><td colspan="2"><b>'.&mt(' Unable to find [_1]','<span class="LC_filename">'.$location.'</span>').'</b></td>'."\n";
1.37      albertel  226:       } else {
                    227: 	&Apache::lonxml::error("<b> Unable to find <i>$location</i> for scriptlib</b>");
                    228: 	return "";
                    229:       }
                    230:     }
                    231:     &Apache::run::run($script,$safeeval);
                    232:     #&Apache::lonxml::debug("ran $bodytext:<br />".&Apache::lonnet::getfile($bodytext)."<br />");
1.18      albertel  233:   }
1.13      albertel  234:   if ($target eq "edit" ) {
1.37      albertel  235:     $result=
1.49      albertel  236:       &Apache::edit::tag_start($target,$token,'New Script Functions').
1.83      matthew   237: 	&Apache::edit::editline($token->[1],$bodytext,'scriptlib',40).
                    238:             &Apache::edit::browse(undef,'textnode').
1.49      albertel  239: 	  $error.'</td></tr>'.
                    240: 	    &Apache::edit::end_table();
1.37      albertel  241:   }
                    242:   if ($target eq "modified" ) {
1.103     albertel  243:       $result=$token->[4].&Apache::edit::modifiedfield("/scriptlib",$parser);
1.3       albertel  244:   }
                    245:   return $result;
                    246: }
                    247: 
1.37      albertel  248: sub end_scriptlib {
1.40      albertel  249:   my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.49      albertel  250:   my @result;
                    251:   if ($target eq "edit" ) { $result[1]='no'; }
                    252:   return @result;
1.37      albertel  253: }
1.4       albertel  254: 
                    255: sub start_parserlib {
1.40      albertel  256:   my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.37      albertel  257:   my $bodytext;
1.7       albertel  258:   my $result ="";
1.37      albertel  259:   my $error='';
1.106     albertel  260:   if ($target eq 'web' || $target eq 'tex' || $target eq 'grade' ||
                    261:       $target eq 'meta' || $target eq 'edit' || $target eq 'answer' ||
1.137     albertel  262:       $target eq 'analyze' || $target eq 'webgrade') {
1.37      albertel  263:     $bodytext=$$parser[$#$parser]->get_text("/parserlib");
                    264:     $bodytext=&Apache::run::evaluate($bodytext,$safeeval,
                    265: 				     $$parstack[$#$parstack]);
                    266:     my $location=&Apache::lonnet::filelocation($Apache::lonxml::pwd['-1'],
                    267: 					       $bodytext);
                    268:     my $styletext=&Apache::lonnet::getfile($location);
                    269:     #&Apache::lonxml::debug("found :$bodytext: in :$location: with :$styletext:");
                    270:     if ($styletext == -1) {
                    271:       if ($target eq 'edit') {
                    272: 	$error='</tr><tr><td>Errors</td><td colspan="2"><b> Unable to find <i>'.$location.'</i></b></td>'."\n";
                    273:       } else {
                    274: 	&Apache::lonxml::error("<b> Unable to find <i>$location</i> for parserlib</b>");
                    275: 	return "";
                    276:       }
                    277:     }
                    278:     %$style = ( %$style , &Apache::style::styleparser($target,$styletext));
1.18      albertel  279:   }
1.13      albertel  280:   if ($target eq "edit" ) {
1.37      albertel  281:     $result=
1.49      albertel  282:       &Apache::edit::tag_start($target,$token,'New Tag Definitions').
1.68      albertel  283: 	&Apache::edit::editline($token->[1],$bodytext,'',40).
1.49      albertel  284: 	  $error.'</td></tr>'.
                    285: 	    &Apache::edit::end_table();
1.37      albertel  286:   }
                    287:   if ($target eq "modified" ) {
1.103     albertel  288:       $result=$token->[4].&Apache::edit::modifiedfield("/parserlib",$parser);
1.7       albertel  289:   }
                    290:   return $result;
1.4       albertel  291: }
                    292: 
                    293: sub end_parserlib {
1.40      albertel  294:   my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.49      albertel  295:   my @result;
                    296:   if ($target eq "edit" ) { $result[1]='no'; }
                    297:   return @result;
1.6       albertel  298: }
                    299: 
1.30      sakharuk  300: sub start_window {
1.105     albertel  301:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
                    302:     my $result = '';
1.137     albertel  303:     if ($target eq 'web' || $target eq 'webgrade') {
1.105     albertel  304: 	&Apache::lonxml::startredirection;
                    305:     } elsif ($target eq 'tex') {
                    306: 	$result = '\unskip\footnote{';
                    307:     } elsif ($target eq 'edit') {
                    308: 	$result.=&Apache::edit::tag_start($target,$token);
                    309: 	$result.=&Apache::edit::text_arg('Text of Link:','linktext',$token,70);
1.131     albertel  310: 	$result.=&Apache::edit::text_arg('Height:','height',$token,5);
                    311: 	$result.=&Apache::edit::text_arg('Width:','width',$token,5);
1.146     albertel  312: 	$result.=&Apache::edit::text_arg('Mime Type:','mimetype',$token,5);
1.105     albertel  313: 	$result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
                    314:     } elsif ($target eq 'modified') {
                    315: 	my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.129     raeburn   316: 						     $safeeval,'linktext',
1.146     albertel  317: 						     'width','height',
                    318: 						     'mimetype');
1.105     albertel  319: 	if ($constructtag) { $result=&Apache::edit::rebuild_tag($token); }
                    320:     }
                    321:     return $result;  
1.19      sakharuk  322: }
                    323: 
1.30      sakharuk  324: sub end_window {
1.40      albertel  325:   my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.30      sakharuk  326:   my $result;
1.137     albertel  327:   if ($target eq 'web' || $target eq 'webgrade') {
1.34      albertel  328:     my $output=&Apache::lonxml::endredirection;
1.97      albertel  329:     $output =~ s/[\n\r]/ /g;
1.98      albertel  330: #    $output = &HTML::Entities::encode($output,'<>&"\'');
                    331:     $output =~ s/\'/\\\'/g;
1.92      albertel  332:     my $linktext= &Apache::lonxml::get_param('linktext',$parstack,$safeeval);
                    333:     if (!$linktext) { $linktext='<sup>*</sup>'; }
                    334:     my $width= &Apache::lonxml::get_param('width',$parstack,$safeeval);
                    335:     if (!$width) { $width='500'; }
                    336:     my $height= &Apache::lonxml::get_param('height',$parstack,$safeeval);
                    337:     if (!$height) { $height='200'; }
1.146     albertel  338:     my $mimetype= &Apache::lonxml::get_param('mimetype',$parstack,$safeeval)
                    339: 	          || 'text/html';
1.135     albertel  340: 
1.146     albertel  341:     my ($start_page,$end_page);
                    342:     if ($mimetype eq 'text/html') {
                    343: 	$start_page =
                    344: 	    &Apache::loncommon::start_page($linktext, undef,
                    345: 					   {'only_body' => 1,
                    346: 					    'bgcolor'   => '#FFFFFF',
                    347: 					    'js_ready'  => 1,});
                    348: 	$end_page =
                    349: 	    &Apache::loncommon::end_page({'js_ready' => 1,});
                    350:     }
1.136     albertel  351:     $result = "<script type=\"text/javascript\">
                    352: //<!--
                    353:  function LONCAPA_newwindow_$Apache::lonxml::curdepth() {
1.147     albertel  354: newWindow=open(".&Apache::lonhtmlcommon::javascript_nothing().",'new_W');
                    355: newWindow.close();
1.136     albertel  356: newWindow=open(".&Apache::lonhtmlcommon::javascript_nothing().",'new_W','width=$width,height=$height,scrollbars=1');
1.146     albertel  357: newWindow.".&Apache::lonhtmlcommon::javascript_docopen($mimetype).";
1.136     albertel  358: newWindow.document.writeln('$start_page $output $end_page');
                    359: newWindow.document.close();}
                    360: //-->
                    361: </script><a href=\"javascript:LONCAPA_newwindow_$Apache::lonxml::curdepth();void(0);\">$linktext</a>";
1.35      sakharuk  362:   } elsif ($target eq 'tex') {
                    363:       $result = '}';
1.30      sakharuk  364:   } else {
1.35      sakharuk  365:       $result = '';
1.30      sakharuk  366:   }
1.20      sakharuk  367:   return $result; 
1.19      sakharuk  368: }
                    369: 
1.6       albertel  370: sub start_import {
1.40      albertel  371:   my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.31      albertel  372:   my $bodytext=$$parser[$#$parser]->get_text("/import");
1.7       albertel  373:   my $result ="";
1.13      albertel  374: 
                    375:   $bodytext=Apache::run::evaluate($bodytext,$safeeval,$$parstack[$#$parstack]);
1.14      albertel  376: 
1.135     albertel  377:   if ($target eq 'web' ||  $target eq 'webgrade' || $target eq 'grade' 
                    378:       || $target eq 'answer' || $target eq 'tex' || $target eq 'analyze' ) {
1.46      albertel  379:     # FIXME this probably needs to be smart about construction vs.
                    380:     # non construction space.
                    381:     my $location=&Apache::lonnet::filelocation($Apache::lonxml::pwd['-1'],$bodytext);
                    382:     my $file=&Apache::lonnet::getfile($location);
                    383:     if ($file == -1) {
                    384:       &Apache::lonxml::error("<b> Unable to find <i>$bodytext as $location</i> for import</b>");
                    385:       return "";
                    386:     }
1.13      albertel  387: 
1.46      albertel  388:     my $dir=$location;
                    389:     $dir=~s:/[^/]*$::;
                    390:     #  &Apache::lonxml::debug("directory $dir $location file $file \n<b>END</b>\n");
1.142     albertel  391:     my $id= &Apache::lonxml::get_id($parstack,$safeeval);
1.57      albertel  392:     if (!$id) { $id=$Apache::lonxml::curdepth; }
                    393:     push(@Apache::inputtags::import,$id);
1.90      albertel  394:     push(@Apache::inputtags::importlist,$id);
1.87      sakharuk  395: 
1.144     albertel  396:     &Apache::lonxml::newparser($parser,\$file,$dir);
1.87      sakharuk  397: 
1.56      albertel  398:   } elsif ($target eq "edit" ) {
1.46      albertel  399:     $result.=&Apache::edit::tag_start($target,$token);
1.68      albertel  400:     $result.=&Apache::edit::editline($token->[1],$bodytext,'',40);
1.83      matthew   401:     $result.=&Apache::edit::browse(undef,'textnode');
1.46      albertel  402:     #FIXME this need to convert $bodytext to be a contruction space reference
                    403:     #my $location=&Apache::lonnet::filelocation($Apache::lonxml::pwd['-1'],$bodytext);
                    404:     #$result.="Click<a href=\"$location\">here</a> to edit<br />"
1.56      albertel  405:   } elsif ($target eq 'modified') {
1.103     albertel  406:       $result=$token->[4].&Apache::edit::modifiedfield("/import",$parser);
1.56      albertel  407:   } elsif ($target eq 'meta') {
1.142     albertel  408:     my $id= &Apache::lonxml::get_id($parstack,$safeeval);
1.57      albertel  409:     $result.='<import part="'.$Apache::inputtags::part;
                    410:     if ($id) {
                    411:       $result.='" id="'.$id;
                    412:     }
                    413:     $result.='">';
1.56      albertel  414:     $result.=$bodytext;
                    415:     $result.='</import>';
1.46      albertel  416:   }
                    417:   return $result;
1.6       albertel  418: }
                    419: 
                    420: sub end_import {
1.69      albertel  421:   my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.57      albertel  422:   pop(@Apache::inputtags::import);
1.69      albertel  423:   my $result;
1.120     albertel  424:   if ($target eq 'edit' ) { $result=&Apache::edit::end_row.
                    425: 				&Apache::edit::end_table(); }
1.69      albertel  426:   return $result;
1.1       albertel  427: }
1.42      sakharuk  428: 
                    429: sub start_storetc {
1.43      albertel  430:   my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.42      sakharuk  431:   my $result = '';
                    432:   &Apache::lonxml::startredirection;
                    433:   return $result; 
                    434: }
                    435: 
                    436: sub end_storetc {
1.43      albertel  437:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.42      sakharuk  438:     my $result;
                    439:     my $output=&Apache::lonxml::endredirection;
                    440:     $output =~ s/\"/\&quot\;/g;
1.52      albertel  441:     $result = '{\bf '.$output.'.}}\write\tcfile{\protect\tcpc{ '.$output.'.}{\the\value{relpage}}}';
                    442:     return $result;
1.42      sakharuk  443: }
                    444: 
                    445: 
                    446: sub start_physnet {
1.45      sakharuk  447:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.50      www       448:     my $bodytext = '/adm/includes/physnet.sty';
1.45      sakharuk  449:     my $location=&Apache::lonnet::filelocation($Apache::lonxml::pwd['-1'],$bodytext);
                    450:     my $cbistyletext=&Apache::lonnet::getfile($location);
1.42      sakharuk  451: 
1.45      sakharuk  452:     %$style = (%$style,&Apache::style::styleparser($target,$cbistyletext));
1.59      albertel  453:     $$parser['-1']->unget_token($token);
                    454: #    if ( defined($$style{'physnet'}) ) {
                    455: #        &Apache::lonxml::newparser($parser,\$$style{'physnet'});
                    456: #    }
1.45      sakharuk  457:     return "";
                    458: }
1.42      sakharuk  459: 
1.45      sakharuk  460: sub end_physnet {
1.47      albertel  461:   return '';
1.42      sakharuk  462: }
1.62      albertel  463: 
                    464: sub start_standalone {
                    465:   my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.75      albertel  466:   my $result='';
1.137     albertel  467:   if ($target eq 'web' || $target eq 'webgrade') {
1.126     albertel  468:     if ( $env{'request.course.id'} ) {
1.133     albertel  469:       my $inside = &Apache::lonxml::get_all_text("/standalone",$parser,$style);
1.75      albertel  470:     } else {
                    471:       $result='<table bgcolor="#E1E1E1" border="2"><tr><td>';
                    472:     }
1.62      albertel  473:   }
1.75      albertel  474:   return $result;
1.62      albertel  475: }
                    476: 
                    477: sub end_standalone {
1.75      albertel  478:   my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
                    479:   my $result='';
1.137     albertel  480:   if ($target eq 'web' || $target eq 'webgrade' ) {
1.126     albertel  481:     if ( $env{'request.course.id'} ) {
1.75      albertel  482:     } else {
                    483:       $result='</td></tr></table>';
                    484:     }
                    485:   }
                    486:   return $result;
1.74      albertel  487: }
                    488: 
                    489: sub start_comment {
                    490:   my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
                    491:   my $result='';
                    492:   if ($target eq 'edit') {
                    493:     $result=&Apache::edit::tag_start($target,$token);
1.133     albertel  494:     my $bodytext=&Apache::lonxml::get_all_text("/comment",$parser,$style);
1.77      albertel  495:     $result.=&Apache::edit::editfield($token->[1],$bodytext,'',80,4)
1.74      albertel  496:   } elsif ( $target eq 'modified') {
1.103     albertel  497:     $result=$token->[4].&Apache::edit::modifiedfield("/comment",$parser);
1.137     albertel  498:   } elsif ( $target eq 'web'    || $target eq 'tex'  || $target eq 'grade'   ||
                    499: 	    $target eq 'answer' || $target eq 'meta' || $target eq 'analyze' ||
                    500: 	    $target eq 'webgrade') {
1.74      albertel  501:     #normally throw away comments
1.133     albertel  502:     my $bodytext=&Apache::lonxml::get_all_text("/comment",$parser,$style);
1.74      albertel  503:   }
                    504:   return $result;
                    505: }
                    506: 
                    507: sub end_comment {
                    508:   my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
                    509:   if ($target eq 'edit' ) { return &Apache::edit::end_table(); }
1.62      albertel  510:   return '';
                    511: }
                    512: 
1.42      sakharuk  513: 
1.47      albertel  514: sub xmlparse {
                    515:   my ($string) = @_;
1.111     albertel  516:   &Apache::lonxml::debug("xmlparse recursion starting with $string");
1.113     albertel  517:   # Apache::run::evaluate does an 'eval' on the name of the subroutine
                    518:   # if it detects something that looks like a subroutine, this ends up calling
                    519:   # things without any arguments and since perl is nice enough to pass
                    520:   # along the default arguments when you don't explicitly say no arguments
                    521:   # if you call &xmlparse, it gets &xmlparse passed as it argument.
                    522:   # Same thing soccurs with &chemparse.
1.111     albertel  523:   if ($string eq '&xmlparse') { return '&xmlparse'; }
1.113     albertel  524:   if ($string eq '&chemparse') { return '&chemparse'; }
1.47      albertel  525:   my ($target,$token,$tagstack,$parstack,$oldparser,$safeeval,$style)=
                    526:     @Apache::scripttag::parser_env;
                    527:   my @parser;
                    528:   &Apache::lonxml::newparser(\@parser,\$string);
1.132     albertel  529:   &Apache::lonxml::startredirection();
1.47      albertel  530:   my $result=&Apache::lonxml::inner_xmlparse($target,$tagstack,
                    531: 					     $parstack,\@parser,
                    532: 					     $safeeval,$style);
1.132     albertel  533:   $result.=&Apache::lonxml::endredirection();
1.122     albertel  534:   &Apache::lonxml::debug("target is $target xmlparse recursion ending with $result");
1.47      albertel  535:   return $result;
                    536: }
1.3       albertel  537: 
1.122     albertel  538: sub start_num {
                    539:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
                    540:     my $result = '';
                    541:     my $inside = &Apache::lonxml::get_all_text_unbalanced("/num",$parser);
1.137     albertel  542:     if ($target eq 'tex' || $target eq 'web' || $target eq 'webgrade') {
1.122     albertel  543: 	$inside=&Apache::run::evaluate($inside,$safeeval,$$parstack[-1]);
                    544: 	if (!$Apache::lonxml::default_homework_loaded) {
                    545: 	    &Apache::lonxml::default_homework_load($safeeval);
                    546: 	}
                    547: 	@Apache::scripttag::parser_env = @_;
                    548: 	my $format=&Apache::lonxml::get_param('format',$parstack,$safeeval);
                    549: 	$result=&Apache::run::run("return &prettyprint(q\0$inside\0,q\0$format\0);",$safeeval);
                    550:     }    
                    551:     return $result;
                    552: }
                    553: 
                    554: sub end_num {
                    555:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
                    556:     my $result = '';
                    557:     return $result;
                    558: }
                    559: 
                    560: sub start_parse {
                    561:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
                    562:     my $result = '';
1.137     albertel  563:     if ( $target eq 'web'    || $target eq 'tex'    ||
                    564: 	 $target eq 'grade'  || $target eq 'answer' ||
                    565: 	 $target eq 'analyze'|| $target eq 'webgrade') {
1.122     albertel  566: 	my $inside = &Apache::lonxml::get_all_text_unbalanced("/parse",$parser);
                    567: 	$inside=&Apache::run::evaluate($inside,$safeeval,$$parstack[-1]);
                    568: 	if (!$Apache::lonxml::default_homework_loaded) {
                    569: 	    &Apache::lonxml::default_homework_load($safeeval);
                    570: 	}
                    571: 	@Apache::scripttag::parser_env = @_;
                    572: 	$result=&Apache::run::run("return &xmlparse(q\0$inside\0);",$safeeval);
1.134     albertel  573: 	if ($target eq 'grade' || $target eq 'answer' ||
                    574: 	    $target eq 'analyze') {
                    575: 	    # grade/answer/analyxe should produce no output but if we
                    576: 	    # are redirecting, the redirecter should know what to do
                    577: 	    # with the output
                    578: 	    if (!$Apache::lonxml::redirection) { $result=''; }
                    579: 	}
1.122     albertel  580:     }
                    581:     return $result;
                    582: }
                    583: 
                    584: sub end_parse {
                    585:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
                    586:     my $result = '';
                    587:     return $result;
                    588: }
1.123     albertel  589: 
                    590: sub start_algebra {
                    591:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
                    592:     my $result = '';
1.137     albertel  593:     if ( $target eq 'web'     || $target eq 'tex'    ||
                    594: 	 $target eq 'grade'   || $target eq 'answer' ||
                    595: 	 $target eq 'analyze' || $target eq 'webgrade') {
1.123     albertel  596: 	my $inside = &Apache::lonxml::get_all_text_unbalanced("/algebra",$parser);
                    597: 	$inside = &Apache::run::evaluate($inside,$safeeval,$$parstack[-1]);
                    598: 	if ($target eq 'web' || $target eq 'tex' || $target eq 'analyze') {
1.125     albertel  599: 	    my $style=&Apache::lonxml::get_param('style',$parstack,$safeeval);
1.152   ! faziophi  600: 	    $result=&Apache::lontexconvert::algebra($inside,undef,$target,$style,$parstack,$safeeval);
1.123     albertel  601: 	}
                    602: 	$Apache::lonxml::post_evaluate=0;
                    603:     }
                    604:     return $result;
                    605: }
                    606: 
                    607: sub end_algebra {
                    608:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style) = @_;
                    609:     my $result = '';
                    610:     return $result;
                    611: }
                    612: 
1.1       albertel  613: 1;
                    614: __END__
1.149     jms       615: 
                    616: =pod
                    617: 
                    618: =head1 NAME
                    619: 
                    620: Apache::scripttag.pm
                    621: 
                    622: =head1 SYNOPSIS
                    623: 
                    624: implements <script>, <scriptlib>, <parserlib>,
                    625: and <import>
                    626: 
                    627: This is part of the LearningOnline Network with CAPA project
                    628: described at http://www.lon-capa.org.
                    629: 
                    630: =cut
                    631: 

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