PHPTAL-NP-0.7.0/libs/PHPTAL/Attribute/TAL/Define.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 class PHPTAL_Attribute_TAL_Define extends PHPTAL_Attribute
  24 {
  25     function activate(&$g, &$tag)
  26     {
  27         if (preg_match('/\|\s*?\bdefault\b/sm', $this->expression)) {
  28             $g->doOBStart();
  29             $err = $tag->generateContent($g);
  30             if (PEAR::isError($err)) { return $err; }
  31             $g->doOBEnd('$__default__');
  32             $default = true;
  33         }
  34
  35         // use node content to set variable
  36         if (preg_match('/^[a-z0-9_]+$/i', $this->expression)) {
  37             $g->doOBStart();
  38             $err = $tag->generateContent($g);
  39             if (PEAR::isError($err)) { return $err; }
  40             $g->doOBEndInContext($this->expression);
  41         } else {
  42             $exp = new PHPTAL_Expression($g, $tag, $this->expression);
  43             $exp->setPolicy(_PHPTAL_ES_RECEIVER_IS_CONTEXT);
  44             $err = $exp->generate();
  45             if (PEAR::isError($err)) { return $err; }
  46         }
  47         if (isset($default)) { $g->execute('unset($__default__)'); }
  48     }
  49 }
  50
  51 ?>