PHPTAL-NP-0.7.0/libs/PHPTAL/Attribute/TAL/Content.php

   1 <?php
   2 /* vim: set expandtab tabstop=4 shiftwidth=4: */
   3 //
   4 //  Copyright (c) 2003 Laurent Bedubourg
   5 //
   6 //  This library is free software; you can redistribute it and/or
   7 //  modify it under the terms of the GNU Lesser General Public
   8 //  License as published by the Free Software Foundation; either
   9 //  version 2.1 of the License, or (at your option) any later version.
  10 //
  11 //  This library is distributed in the hope that it will be useful,
  12 //  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 //  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14 //  Lesser General Public License for more details.
  15 //
  16 //  You should have received a copy of the GNU Lesser General Public
  17 //  License along with this library; if not, write to the Free Software
  18 //  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19 //
  20 //  Authors: Laurent Bedubourg <laurent.bedubourg@free.fr>
  21 //
  22
  23 /**
  24  * Handle tal:content attributes
  25  *
  26  * @author Laurent Bedubourg <laurent.bedubourg@free.fr>
  27  */
  28 class PHPTAL_Attribute_TAL_Content extends PHPTAL_Attribute
  29 {
  30     function activate(&$g, &$tag)
  31     {
  32         if (preg_match('/\|\s*?\bdefault\b/sm', $this->expression)) {
  33             $g->doOBStart();
  34             foreach ($tag->_children as $child) {
  35                 $err = $child->generateCode($g);
  36                 if (PEAR::isError($err)) { return $err; }
  37             }
  38             $g->doOBEnd('$__default__');
  39             $default = true;
  40         }
  41
  42         $g->setSource($tag->name(), $tag->line);
  43         $exp = new PHPTAL_Expression($g, $tag, $this->expression);
  44         $exp->setPolicy(_PHPTAL_ES_RECEIVER_IS_OUTPUT);
  45         $err = $exp->generate();
  46         if (PEAR::isError($err)) { return $err; }
  47
  48         if (isset($default)) { $g->execute('unset($__default__)'); }
  49     }
  50 }
  51
  52 ?>