1 <?php

     2 /**

     3  * Smarty Internal Plugin Compile Eval

     4  * Compiles the {eval} tag.

     5  *

     6  * @package    Smarty

     7  * @subpackage Compiler

     8  * @author     Uwe Tews

     9  */

    10 

    11 /**

    12  * Smarty Internal Plugin Compile Eval Class

    13  *

    14  * @package    Smarty

    15  * @subpackage Compiler

    16  */

    17 class Smarty_Internal_Compile_Eval extends Smarty_Internal_CompileBase {

    18     /**

    19      * Attribute definition: Overwrites base class.

    20      *

    21      * @var array

    22      * @see Smarty_Internal_CompileBase

    23      */

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

    25     /**

    26      * Attribute definition: Overwrites base class.

    27      *

    28      * @var array

    29      * @see Smarty_Internal_CompileBase

    30      */

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

    32     /**

    33      * Attribute definition: Overwrites base class.

    34      *

    35      * @var array

    36      * @see Smarty_Internal_CompileBase

    37      */

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

    39 

    40     /**

    41      * Compiles code for the {eval} tag

    42      *

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

    44      * @param  object $compiler compiler object

    45      *

    46      * @return string compiled code

    47      */

    48     public function compile($args, $compiler) {

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

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

    51         // check and get attributes

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

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

    54             // output will be stored in a smarty variable instead of being displayed

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

    56         }

    57 

    58         // create template object

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

    60         //was there an assign attribute?

    61         if (isset($_assign)) {

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

    63         } else {

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

    65         }

    66 

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

    68     }

    69 }