File:  [LON-CAPA] / loncom / xml / scripttag.pm
Revision 1.19: download - view: text, annotated - select for diffs
Mon Oct 9 14:09:41 2000 UTC (23 years, 8 months ago) by sakharuk
Branches: MAIN
CVS tags: HEAD
added footnote tag

    1: # The LearningOnline Network with CAPA
    2: # <script> definiton
    3: 
    4: 
    5: package Apache::scripttag; 
    6: 
    7: use strict;
    8: use Apache::lonnet;
    9: 
   10: sub BEGIN {
   11:   &Apache::lonxml::register('Apache::scripttag',('script','scriptlib',
   12: 						 'parserlib','import'));
   13: }
   14: 
   15: $Apache::scripttag::SCRIPT_RESULT='';
   16: sub start_script {
   17:   my ($target,$token,$parstack,$parser,$safeeval)=@_;
   18:   my $args ='';
   19:   if ( $#$parstack > -1 ) {
   20:     $args=$$parstack[$#$parstack];
   21:   }
   22:   my $type = &Apache::run::run("{$args;".'return $type}',$safeeval);
   23:   #&Apache::lonxml::debug("found type of $type");
   24:   $Apache::scripttag::SCRIPT_RESULT='';
   25:   if ($type eq "loncapa/perl") {
   26:     $safeeval->share('$SCRIPT_RESULT');
   27:     my $bodytext=&Apache::lonxml::get_all_text("script",$$parser[$#$parser]);
   28:     
   29:     if ( $target eq "modified" ) {
   30:     }
   31:     &Apache::run::run($bodytext,$safeeval);
   32:     
   33:     if ($target eq "edit" ) {
   34:       $Apache::scripttag::SCRIPT_RESULT = 
   35: 	"<br> &lt;$token->[1]&gt; output: <br>$bodytext<br>Source:<br>";
   36:       $Apache::scripttag::SCRIPT_RESULT.=&editfield($token->[1],$bodytext);
   37:     }
   38:   } else {
   39:     $Apache::scripttag::SCRIPT_RESULT = $token->[4];
   40:   }
   41:   return $Apache::scripttag::SCRIPT_RESULT;
   42: }
   43: 
   44: sub end_script {
   45:   my ($target,$token,$parstack,$parser,$safeeval)=@_;
   46:   return $token->[2]; 
   47: }
   48: 
   49: sub start_scriptlib {
   50:   my ($target,$token,$parstack,$parser,$safeeval)=@_;
   51:   my $bodytext=$$parser[$#$parser]->get_text("/scriptlib");
   52:   my $result ="";
   53: 
   54:   $bodytext=&Apache::run::evaluate($bodytext,$safeeval,
   55: 				   $$parstack[$#$parstack]);
   56:   my $location=&Apache::lonnet::filelocation($Apache::lonxml::pwd['-1'],
   57: 					     $bodytext);
   58:   my $script=&Apache::lonnet::getfile($location);
   59:   if ($script == -1) {
   60:     &Apache::lonxml::error("<b> Unable to find <i>$location</i> for scriptlib</b>");
   61:     return "";
   62:   }
   63:   &Apache::run::run($script,$safeeval);
   64:   #&Apache::lonxml::debug("ran $bodytext:<br>".&Apache::lonnet::getfile($bodytext)."<br>");
   65: 
   66:   if ($target eq "edit" ) {
   67:     $result.=&editfield($token->[1],$bodytext);
   68:   }
   69:   return $result;
   70: }
   71: 
   72: sub end_scriptlib {}
   73: 
   74: sub start_parserlib {
   75:   my ($target,$token,$parstack,$parser,$safeeval,$style)=@_;
   76:   my $bodytext=$$parser[$#$parser]->get_text("/parserlib");
   77:   my $result ="";
   78: 
   79:   $bodytext=&Apache::run::evaluate($bodytext,$safeeval,
   80: 				  $$parstack[$#$parstack]);
   81:   my $location=&Apache::lonnet::filelocation($Apache::lonxml::pwd['-1'],
   82: 					     $bodytext);
   83:   my $styletext=&Apache::lonnet::getfile($location);
   84:   if ($styletext == -1) {
   85:     &Apache::lonxml::error("<b> Unable to find <i>$location</i> for parserlib</b>");
   86:     return "";
   87:   }
   88:   %$style = ( %$style , &Apache::style::styleparser($target,$styletext));
   89: 
   90:   if ($target eq "edit" ) {
   91:     $result=&editfield($token->[1],$bodytext);
   92:   }
   93:   return $result;
   94: }
   95: 
   96: sub end_parserlib {
   97: }
   98: 
   99: sub start_footnote {
  100:   my ($target,$token,$parstack,$parser,$safeeval,$style)=@_;
  101:   my $result ="footnote";
  102:   return $result;  
  103: }
  104: 
  105: sub end_footnote {
  106:   my ($target,$token,$parstack,$parser,$safeeval,$style)=@_;
  107: 
  108: }
  109: 
  110: sub start_import {
  111:   my ($target,$token,$parstack,$parser,$safeeval,$style)=@_;
  112:   my $bodytext=$$parser[$#$parser]->get_text("/import");
  113:   my $result ="";
  114: 
  115:   $bodytext=Apache::run::evaluate($bodytext,$safeeval,$$parstack[$#$parstack]);
  116:   my $location=&Apache::lonnet::filelocation($Apache::lonxml::pwd['-1'],$bodytext);
  117:   my $file=&Apache::lonnet::getfile($location);
  118:   if ($file == -1) {
  119:     &Apache::lonxml::error("<b> Unable to find <i>$bodytext $location</i> for import</b>");
  120:     return "";
  121:   }
  122: 
  123:   my $dir=$location;
  124:   $dir=~s:/[^/]*$::;
  125:   &Apache::lonxml::newparser($parser,\$file,$dir);
  126: 
  127:   if ($target eq "edit" ) {
  128:     $result.=&editfield($token->[1],$bodytext);
  129:     $result.="Click<a href=\"/res/$bodytext\">here</a> to edit<br></br>"
  130:   }
  131: }
  132: 
  133: sub end_import {
  134: }
  135: 
  136: sub editfield {
  137:   my ($tag,$data)=@_;
  138:   
  139:   my $count=0;
  140:   my $maxlength=-1;
  141:   map { $count++;
  142: 	if (length($_) > $maxlength) { $maxlength = length ($_); }
  143:       } split ("\n", $data);
  144: 	  
  145:   return "<br></br>\n&lt;$tag&gt;<br></br>\n&nbsp;&nbsp;&nbsp;<textarea rows=\"$count\" cols=\"$maxlength\" name=homework_edit_".$Apache::lonxml::curdepth.">$data</textarea><br></br>\n&lt;/$tag&gt;<br></br>\n";
  146: }
  147: 
  148: sub getfilenothere {
  149:   my ($filename) = @_;
  150:   my $a="";
  151:   
  152:   $filename=~ s/^\s*(\S+)\s*$/$1/; ## strip off leading and trailing spaces
  153:   $filename="/home/httpd/html/res".$filename;
  154:   if (! -e $filename ) {
  155:     &Apache::lonnet::subscribe($filename);
  156:     &Apache::lonnet::repcopy($filename);
  157:   }
  158:   if (! -e $filename ) { return -1; };
  159:   my $fh=Apache::File->new($filename);
  160:   while (<$fh>) {
  161:       $a .=$_;
  162:   }
  163:   return $a
  164: }
  165: 
  166: 1;
  167: __END__

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