1: <?php
 2: /**
 3:  * Smarty Internal Plugin Compile Break
 4:  * Compiles the {break} tag
 5:  *
 6:  * @package    Smarty
 7:  * @subpackage Compiler
 8:  * @author     Uwe Tews
 9:  */
10: 
11: /**
12:  * Smarty Internal Plugin Compile Break Class
13:  *
14:  * @package    Smarty
15:  * @subpackage Compiler
16:  */
17: class Smarty_Internal_Compile_Break extends Smarty_Internal_CompileBase
18: {
19:     /**
20:      * Attribute definition: Overwrites base class.
21:      *
22:      * @var array
23:      * @see Smarty_Internal_CompileBase
24:      */
25:     public $optional_attributes = array('levels');
26:     /**
27:      * Attribute definition: Overwrites base class.
28:      *
29:      * @var array
30:      * @see Smarty_Internal_CompileBase
31:      */
32:     public $shorttag_order = array('levels');
33: 
34:     /**
35:      * Compiles code for the {break} tag
36:      *
37:      * @param  array  $args      array with attributes from parser
38:      * @param  object $compiler  compiler object
39:      * @param  array  $parameter array with compilation parameter
40:      *
41:      * @return string compiled code
42:      */
43:     public function compile($args, $compiler, $parameter)
44:     {
45:         static $_is_loopy = array('for' => true, 'foreach' => true, 'while' => true, 'section' => true);
46:         // check and get attributes
47:         $_attr = $this->getAttributes($compiler, $args);
48: 
49:         if ($_attr['nocache'] === true) {
50:             $compiler->trigger_template_error('nocache option not allowed', $compiler->lex->taglineno);
51:         }
52: 
53:         if (isset($_attr['levels'])) {
54:             if (!is_numeric($_attr['levels'])) {
55:                 $compiler->trigger_template_error('level attribute must be a numeric constant', $compiler->lex->taglineno);
56:             }
57:             $_levels = $_attr['levels'];
58:         } else {
59:             $_levels = 1;
60:         }
61:         $level_count = $_levels;
62:         $stack_count = count($compiler->_tag_stack) - 1;
63:         while ($level_count > 0 && $stack_count >= 0) {
64:             if (isset($_is_loopy[$compiler->_tag_stack[$stack_count][0]])) {
65:                 $level_count --;
66:             }
67:             $stack_count --;
68:         }
69:         if ($level_count != 0) {
70:             $compiler->trigger_template_error("cannot break {$_levels} level(s)", $compiler->lex->taglineno);
71:         }
72: 
73:         return "<?php break {$_levels};?>";
74:     }
75: }
76: