1 <?php

     2 /**

     3  * Smarty Internal Plugin Compile Eval

     4  *

     5  * Compiles the {eval} tag.

     6  *

     7  * @package Smarty

     8  * @subpackage Compiler

     9  * @author Uwe Tews

    10  */

    11 

    12 /**

    13  * Smarty Internal Plugin Compile Eval Class

    14  *

    15  * @package Smarty

    16  * @subpackage Compiler

    17  */

    18 class Smarty_Internal_Compile_Eval extends Smarty_Internal_CompileBase {

    19 

    20     /**

    21      * Attribute definition: Overwrites base class.

    22      *

    23      * @var array

    24      * @see Smarty_Internal_CompileBase

    25      */

    26     public $required_attributes = array('var');

    27     /**

    28      * Attribute definition: Overwrites base class.

    29      *

    30      * @var array

    31      * @see Smarty_Internal_CompileBase

    32      */

    33     public $optional_attributes = array('assign');

    34     /**

    35      * Attribute definition: Overwrites base class.

    36      *

    37      * @var array

    38      * @see Smarty_Internal_CompileBase

    39      */

    40     public $shorttag_order = array('var','assign');

    41 

    42     /**

    43      * Compiles code for the {eval} tag

    44      *

    45      * @param array  $args     array with attributes from parser

    46      * @param object $compiler compiler object

    47      * @return string compiled code

    48      */

    49     public function compile($args, $compiler)

    50     {

    51         $this->required_attributes = array('var');

    52         $this->optional_attributes = array('assign');

    53         // check and get attributes

    54         $_attr = $this->getAttributes($compiler, $args);

    55         if (isset($_attr['assign'])) {

    56               // output will be stored in a smarty variable instead of beind displayed

    57             $_assign = $_attr['assign'];

    58         }

    59 

    60         // create template object

    61         $_output = "\$_template = new {$compiler->smarty->template_class}('eval:'.".$_attr['var'].", \$_smarty_tpl->smarty, \$_smarty_tpl);";

    62         //was there an assign attribute?

    63         if (isset($_assign)) {

    64             $_output .= "\$_smarty_tpl->assign($_assign,\$_template->fetch());";

    65         } else {

    66             $_output .= "echo \$_template->fetch();";

    67         }

    68         return "<?php $_output ?>";

    69     }

    70 

    71 }

    72 

    73 ?>