PHPTAL-NP-0.7.0/libs/PHPTAL/Attribute/TAL/Repeat.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_Repeat extends PHPTAL_Attribute
  24 {
  25     var $in = "__in__";
  26     var $out = "__out__";
  27
  28     function start(&$g, &$tag)
  29     {
  30         $g->setSource($tag->name(), $tag->line);
  31
  32         $g->doComment('new loop');
  33         $exp = new PHPTAL_Expression($g, $tag, $this->expression);
  34         $exp->setPolicy(_PHPTAL_ES_RECEIVER_IS_TEMP);
  35         $err = $exp->prepare();
  36         if (PEAR::isError($err)) { return $err; }
  37
  38         $this->out = $exp->getReceiver();
  39         $temp = $g->newTemporaryVar();
  40         $exp->setReceiver($temp);
  41         $err = $exp->generate();   // now $temp points to the loop data
  42         if (PEAR::isError($err)) { return $err; }
  43
  44         $loop = $g->newTemporaryVar();
  45         $this->loop = $loop;
  46         $g->doAffectResult($loop,
  47                            '& new PHPTAL_LoopControler($__ctx__, "'. $this->out . '", '
  48                                                   . $temp .');');
  49         $g->doIf('PEAR::isError('.$loop.'->_error)');
  50         $g->doPrintVar($loop.'->_error');
  51         $g->doElse();
  52         // $g->execute($loop.'->prepare()');
  53         $g->doWhile($loop.'->isValid()');
  54
  55     }
  56
  57     function end(&$g, &$tag)
  58     {
  59         $g->execute($this->loop.'->next()');
  60         $g->endBlock();
  61         $g->endBlock();
  62         $g->doComment('end loop');
  63     }
  64 }