File:  [LON-CAPA] / loncom / xml / scripttag.pm
Revision 1.47: download - view: text, annotated - select for diffs
Thu Jul 12 15:53:44 2001 UTC (22 years, 10 months ago) by albertel
Branches: MAIN
CVS tags: HEAD
- &xmlparse() should work well now.

    1: # The LearningOnline Network with CAPA
    2: # <script> definiton
    3: # 2/21 Guy
    4: 
    5: package Apache::scripttag;
    6: 
    7: use strict;
    8: use Apache::lonnet;
    9: use Apache::style;
   10: 
   11: #Globals
   12: # this used to pass around the standard callsub arguments to a tag func
   13: # so xmlparse can reenter the inner_xmlparse loop.
   14: 
   15: @Apache::scripttag::parser_env = ();
   16: sub BEGIN {
   17:   &Apache::lonxml::register('Apache::scripttag',('script','scriptlib',
   18: 						 'parserlib','import',
   19:                                                  'window','display',
   20:                                                  'storetc','physnet'));
   21: }
   22: 
   23: sub start_script {
   24:   my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
   25:   @Apache::scripttag::parser_env = @_;
   26:   my $result='';
   27:   my $type= &Apache::lonxml::get_param('type',$parstack,$safeeval);
   28:   &Apache::lonxml::debug("found type of $type");
   29:   if ($type eq "loncapa/perl") {
   30:     my $bodytext=&Apache::lonxml::get_all_text("/script",$$parser[$#$parser]);
   31:     if ( $target eq "modified" ) {
   32:       $result=$token->[4].&Apache::edit::modifiedfield();
   33:     } elsif ( $target eq "web" || $target eq "grade" ) {
   34:       &Apache::run::run($bodytext,$safeeval);
   35:     } elsif ($target eq "edit" ) {
   36:       #&Apache::run::run($bodytext,$safeeval);
   37:       #$result="<br /> &lt;$token->[1]&gt; output: <br />$bodytext<br />Source:<br />";
   38:       $result=&Apache::edit::tag_start($target,$token,'Script');
   39:       $result.=&Apache::edit::editfield($token->[1],$bodytext,'',50,4);
   40:     }
   41:   } else {
   42:     if ($target ne "meta") { $result = $token->[4]; }
   43:   }
   44:   return $result;
   45: }
   46: 
   47: sub end_script {
   48:   my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
   49:   if ( $target eq "meta" ) { return ''; } 
   50:   my $type = &Apache::lonxml::get_param('type',$parstack,$safeeval);
   51:   my $result='';
   52:   #other script blocks need to survive
   53:   if ($type ne "loncapa/perl") { return $token->[2]; }
   54:   if ($target eq 'edit' ) { return &Apache::edit::end_table(); }
   55:   return '';
   56: }
   57: 
   58: sub start_display {
   59:   my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
   60: 
   61:   my $bodytext=&Apache::lonxml::get_all_text("/display",$$parser[$#$parser]);
   62: 
   63:   if ( $target eq "modified" ) {
   64:   }
   65:   my $result=&Apache::run::run($bodytext,$safeeval);
   66:   if ($target eq 'grade' ) {
   67:     # grade should produce no output
   68:     $result='';
   69:   }
   70:   if ($target eq "edit" ) {
   71:     $result = 
   72:       "<br /> &lt;$token->[1]&gt; output: <br />$bodytext<br />Source:<br />";
   73:     $result.=&Apache::edit::editfield($token->[1],$bodytext,'',40,1);
   74:   }
   75:   return $result;
   76: }
   77: 
   78: sub end_display {
   79:   return ''
   80: }
   81: 
   82: sub start_scriptlib {
   83:   my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
   84:   my $bodytext;
   85:   my $result ='';
   86:   my $error='';
   87: 
   88:   if ($target eq 'web' || $target eq 'grade' || $target eq 'meta' || $target eq 'edit') {
   89:     $bodytext=$$parser[$#$parser]->get_text("/scriptlib");
   90:     $bodytext=&Apache::run::evaluate($bodytext,$safeeval,
   91: 				     $$parstack[$#$parstack]);
   92:     my $location=&Apache::lonnet::filelocation($Apache::lonxml::pwd['-1'],
   93: 					       $bodytext);
   94:     my $script=&Apache::lonnet::getfile($location);
   95:     if ($script == -1) {
   96:       if ($target eq 'edit') {
   97:         $error='</tr><tr><td>Errors</td><td colspan="2"><b> Unable to find <i>'.$location.'</i></b></td>'."\n";
   98:       } else {
   99: 	&Apache::lonxml::error("<b> Unable to find <i>$location</i> for scriptlib</b>");
  100: 	return "";
  101:       }
  102:     }
  103:     &Apache::run::run($script,$safeeval);
  104:     #&Apache::lonxml::debug("ran $bodytext:<br />".&Apache::lonnet::getfile($bodytext)."<br />");
  105:   }
  106:   if ($target eq "edit" ) {
  107:     $result=
  108:       &Apache::edit::tag_start($target,$token).
  109: 	&Apache::edit::editfield($token->[1],$bodytext,'New Script Functions',40,1).
  110: 	  $error;
  111:   }
  112:   if ($target eq "modified" ) {
  113:     $bodytext=$$parser[$#$parser]->get_text("/scriptlib");
  114:     $result=&Apache::edit::modifiedfield($token);
  115:     &Apache::lonxml::debug($result);
  116:   }
  117:   return $result;
  118: }
  119: 
  120: sub end_scriptlib {
  121:   my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
  122:   my $result='';
  123: #  if ($target eq "edit" ) { $result=" "; }
  124:   return $result;
  125: }
  126: 
  127: sub start_parserlib {
  128:   my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
  129:   my $bodytext;
  130:   my $result ="";
  131:   my $error='';
  132:   if ($target eq 'web' || $target eq 'grade' || $target eq 'meta' || $target eq 'edit') {
  133:     $bodytext=$$parser[$#$parser]->get_text("/parserlib");
  134:     $bodytext=&Apache::run::evaluate($bodytext,$safeeval,
  135: 				     $$parstack[$#$parstack]);
  136:     my $location=&Apache::lonnet::filelocation($Apache::lonxml::pwd['-1'],
  137: 					       $bodytext);
  138:     my $styletext=&Apache::lonnet::getfile($location);
  139:     #&Apache::lonxml::debug("found :$bodytext: in :$location: with :$styletext:");
  140:     if ($styletext == -1) {
  141:       if ($target eq 'edit') {
  142: 	$error='</tr><tr><td>Errors</td><td colspan="2"><b> Unable to find <i>'.$location.'</i></b></td>'."\n";
  143:       } else {
  144: 	&Apache::lonxml::error("<b> Unable to find <i>$location</i> for parserlib</b>");
  145: 	return "";
  146:       }
  147:     }
  148:     %$style = ( %$style , &Apache::style::styleparser($target,$styletext));
  149:   }
  150:   if ($target eq "edit" ) {
  151:     $result=
  152:       &Apache::edit::tag_start($target,$token).
  153: 	&Apache::edit::editfield($token->[1],$bodytext,"New Tag Definitions",40,1).
  154: 	  $error;
  155:   }
  156:   if ($target eq "modified" ) {
  157:     $bodytext=$$parser[$#$parser]->get_text("/parserlib");
  158:     $result=&Apache::edit::modifiedfield($token);
  159:     &Apache::lonxml::debug($result);
  160:   }
  161:   return $result;
  162: }
  163: 
  164: sub end_parserlib {
  165:   my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
  166:   my $result='';
  167: #  if ($target eq "edit" ) { 
  168: #    $result=&Apache::edit::tag_end($target,$token);
  169: #  }
  170:   return $result;
  171: }
  172: 
  173: sub start_window {
  174:   my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
  175:   my $result = '';
  176:   if ($target eq 'web') {
  177:     &Apache::lonxml::startredirection;
  178:   }  elsif ($target eq 'tex') {
  179:        $result = '\unskip\footnote{';
  180:    }
  181:   return $result;  
  182: }
  183: 
  184: sub end_window {
  185:   my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
  186:   my $result;
  187:   if ($target eq 'web') {
  188:     my $output=&Apache::lonxml::endredirection;
  189:     $output =~ s/\"/\&quot\;/g;
  190:     $result = "<a href=\"javascript:newWindow=open(\'\',\'new_W\',\'width=500,height=200,scrollbars=1\');newWindow.document.open(\'text/html\',\'replace\');newWindow.document.writeln(\'<html><head><title>newwindow</title></head><body bgcolor=&quot;#FFFFFF&quot;> $output </body></html>\');newWindow.document.close();void(0);\"><sup>*</sup></a>";
  191:   } elsif ($target eq 'tex') {
  192:       $result = '}';
  193:   } else {
  194:       $result = '';
  195:   }
  196:   return $result; 
  197: }
  198: 
  199: sub start_import {
  200:   my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
  201:   my $bodytext=$$parser[$#$parser]->get_text("/import");
  202:   my $result ="";
  203: 
  204:   $bodytext=Apache::run::evaluate($bodytext,$safeeval,$$parstack[$#$parstack]);
  205: 
  206:   if ($target eq 'web' || $target eq 'grade') {
  207:     # FIXME this probably needs to be smart about construction vs.
  208:     # non construction space.
  209:     my $location=&Apache::lonnet::filelocation($Apache::lonxml::pwd['-1'],$bodytext);
  210:     my $file=&Apache::lonnet::getfile($location);
  211:     if ($file == -1) {
  212:       &Apache::lonxml::error("<b> Unable to find <i>$bodytext as $location</i> for import</b>");
  213:       return "";
  214:     }
  215: 
  216:     my $dir=$location;
  217:     $dir=~s:/[^/]*$::;
  218:     #  &Apache::lonxml::debug("directory $dir $location file $file \n<b>END</b>\n");
  219:     &Apache::lonxml::newparser($parser,\$file,$dir);
  220:   }
  221:   if ($target eq "edit" ) {
  222:     $result.=&Apache::edit::tag_start($target,$token);
  223:     $result.=&Apache::edit::editfield($token->[1],$bodytext,'',40,1);
  224:     #FIXME this need to convert $bodytext to be a contruction space reference
  225:     #my $location=&Apache::lonnet::filelocation($Apache::lonxml::pwd['-1'],$bodytext);
  226:     #$result.="Click<a href=\"$location\">here</a> to edit<br />"
  227:   }
  228:   if ($target eq 'modified') {
  229:     $bodytext=$$parser[$#$parser]->get_text("/import");
  230:     $result=&Apache::edit::modifiedfield($token);
  231:     &Apache::lonxml::debug($result);
  232:   }
  233:   return $result;
  234: }
  235: 
  236: sub end_import {
  237:   return '';
  238: }
  239: 
  240: sub start_storetc {
  241:   my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
  242:   my $result = '';
  243:   &Apache::lonxml::startredirection;
  244:   return $result; 
  245: }
  246: 
  247: sub end_storetc {
  248:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
  249:     my $result;
  250:     my $output=&Apache::lonxml::endredirection;
  251:     $output =~ s/\"/\&quot\;/g;
  252:     $result = "{\bf $output.}}\write\tcfile{\protect\tcpc{ $output.}{\the\value{relpage}}}";
  253:     return $result; 
  254: }
  255: 
  256: 
  257: sub start_physnet {
  258:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
  259:     my $bodytext = '/msu/physnet/cbi.sty';
  260:     my $location=&Apache::lonnet::filelocation($Apache::lonxml::pwd['-1'],$bodytext);
  261:     my $cbistyletext=&Apache::lonnet::getfile($location);
  262: 
  263:     %$style = (%$style,&Apache::style::styleparser($target,$cbistyletext));
  264:     if ( defined($$style{'physnet'}) ) {
  265:         &Apache::lonxml::newparser($parser,\$$style{'physnet'});
  266:     }
  267:     return "";
  268: }
  269: 
  270: sub end_physnet {
  271:   return '';
  272: }
  273: 
  274: sub xmlparse {
  275:   my ($string) = @_;
  276:   &Apache::lonxml::debug("Got $string");
  277:   my ($target,$token,$tagstack,$parstack,$oldparser,$safeeval,$style)=
  278:     @Apache::scripttag::parser_env;
  279:   my @parser;
  280:   &Apache::lonxml::newparser(\@parser,\$string);
  281:   my $result=&Apache::lonxml::inner_xmlparse($target,$tagstack,
  282: 					     $parstack,\@parser,
  283: 					     $safeeval,$style);
  284:   return $result;
  285: }
  286: 
  287: 1;
  288: __END__

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