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   1  <?php
   2  /**

   3   * Smarty Internal Plugin Compile Break

   4   *

   5   * Compiles the {break} tag

   6   *

   7   * @package Smarty

   8   * @subpackage Compiler

   9   * @author Uwe Tews

  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       * @return string compiled code

  41       */
  42      public function compile($args, $compiler, $parameter)
  43      {
  44          static $_is_loopy = array('for' => true, 'foreach' => true, 'while' => true, 'section' => true);
  45          // check and get attributes

  46          $_attr = $this->getAttributes($compiler, $args);
  47  
  48          if ($_attr['nocache'] === true) {
  49              $compiler->trigger_template_error('nocache option not allowed', $compiler->lex->taglineno);
  50          }
  51  
  52          if (isset($_attr['levels'])) {
  53              if (!is_numeric($_attr['levels'])) {
  54                  $compiler->trigger_template_error('level attribute must be a numeric constant', $compiler->lex->taglineno);
  55              }
  56              $_levels = $_attr['levels'];
  57          } else {
  58              $_levels = 1;
  59          }
  60          $level_count = $_levels;
  61          $stack_count = count($compiler->_tag_stack) - 1;
  62          while ($level_count > 0 && $stack_count >= 0) {
  63              if (isset($_is_loopy[$compiler->_tag_stack[$stack_count][0]])) {
  64                  $level_count--;
  65              }
  66              $stack_count--;
  67          }
  68          if ($level_count != 0) {
  69              $compiler->trigger_template_error("cannot break {$_levels} level(s)", $compiler->lex->taglineno);
  70          }
  71          $compiler->has_code = true;
  72          return "<?php break {$_levels}?>";
  73      }
  74  
  75  }
  76  
  77  ?>