text: <?php
  /**
   * Smarty Internal Plugin Compile Foreach
   *
   * Compiles the {foreach} {foreachelse} {/foreach} tags
   *
   * @package Smarty
   * @subpackage Compiler
   * @author Uwe Tews
   */
  
  /**
   * Smarty Internal Plugin Compile Foreach Class
   *
   * @package Smarty
   * @subpackage Compiler
   */
  class Smarty_Internal_Compile_Foreach extends Smarty_Internal_CompileBase
  {
      /**
       * Attribute definition: Overwrites base class.
       *
       * @var array
       * @see Smarty_Internal_CompileBase
       */
      public $required_attributes = array('from', 'item');
      /**
       * Attribute definition: Overwrites base class.
       *
       * @var array
       * @see Smarty_Internal_CompileBase
       */
      public $optional_attributes = array('name', 'key');
      /**
       * Attribute definition: Overwrites base class.
       *
       * @var array
       * @see Smarty_Internal_CompileBase
       */
      public $shorttag_order = array('from','item','key','name');
  
      /**
       * Compiles code for the {foreach} tag
       *
       * @param  array  $args      array with attributes from parser
       * @param  object $compiler  compiler object
       * @param  array  $parameter array with compilation parameter
       * @return string compiled code
       */
      public function compile($args, $compiler, $parameter)
      {
          $tpl = $compiler->template;
          // check and get attributes
          $_attr = $this->getAttributes($compiler, $args);
  
          $from = $_attr['from'];
          $item = $_attr['item'];
          if (!strncmp("\$_smarty_tpl->tpl_vars[$item]", $from, strlen($item) + 24)) {
              $compiler->trigger_template_error("item variable {$item} may not be the same variable as at 'from'", $compiler->lex->taglineno);
          }
  
          if (isset($_attr['key'])) {
              $key = $_attr['key'];
          } else {
              $key = null;
          }
  
          $this->openTag($compiler, 'foreach', array('foreach', $compiler->nocache, $item, $key));
          // maybe nocache because of nocache variables
          $compiler->nocache = $compiler->nocache | $compiler->tag_nocache;
  
          if (isset($_attr['name'])) {
              $name = $_attr['name'];
              $has_name = true;
              $SmartyVarName = '$smarty.foreach.' . trim($name, '\'"') . '.';
          } else {
              $name = null;
              $has_name = false;
          }
          $ItemVarName = '$' . trim($item, '\'"') . '@';
          // evaluates which Smarty variables and properties have to be computed
          if ($has_name) {
              $usesSmartyFirst = strpos($tpl->source->content, $SmartyVarName . 'first') !== false;
              $usesSmartyLast = strpos($tpl->source->content, $SmartyVarName . 'last') !== false;
              $usesSmartyIndex = strpos($tpl->source->content, $SmartyVarName . 'index') !== false;
              $usesSmartyIteration = strpos($tpl->source->content, $SmartyVarName . 'iteration') !== false;
              $usesSmartyShow = strpos($tpl->source->content, $SmartyVarName . 'show') !== false;
              $usesSmartyTotal = strpos($tpl->source->content, $SmartyVarName . 'total') !== false;
          } else {
              $usesSmartyFirst = false;
              $usesSmartyLast = false;
              $usesSmartyTotal = false;
              $usesSmartyShow = false;
          }
  
          $usesPropFirst = $usesSmartyFirst || strpos($tpl->source->content, $ItemVarName . 'first') !== false;
          $usesPropLast = $usesSmartyLast || strpos($tpl->source->content, $ItemVarName . 'last') !== false;
          $usesPropIndex = $usesPropFirst || strpos($tpl->source->content, $ItemVarName . 'index') !== false;
          $usesPropIteration = $usesPropLast || strpos($tpl->source->content, $ItemVarName . 'iteration') !== false;
          $usesPropShow = strpos($tpl->source->content, $ItemVarName . 'show') !== false;
          $usesPropTotal = $usesSmartyTotal || $usesSmartyShow || $usesPropShow || $usesPropLast || strpos($tpl->source->content, $ItemVarName . 'total') !== false;
          // generate output code
          $output = "<?php ";
          $output .= " \$_smarty_tpl->tpl_vars[$item] = new Smarty_Variable; \$_smarty_tpl->tpl_vars[$item]->_loop = false;\n";
          if ($key != null) {
              $output .= " \$_smarty_tpl->tpl_vars[$key] = new Smarty_Variable;\n";
          }
          $output .= " \$_from = $from; if (!is_array(\$_from) && !is_object(\$_from)) { settype(\$_from, 'array');}\n";
          if ($usesPropTotal) {
              $output .= " \$_smarty_tpl->tpl_vars[$item]->total= \$_smarty_tpl->_count(\$_from);\n";
          }
          if ($usesPropIteration) {
              $output .= " \$_smarty_tpl->tpl_vars[$item]->iteration=0;\n";
          }
          if ($usesPropIndex) {
              $output .= " \$_smarty_tpl->tpl_vars[$item]->index=-1;\n";
          }
          if ($usesPropShow) {
              $output .= " \$_smarty_tpl->tpl_vars[$item]->show = (\$_smarty_tpl->tpl_vars[$item]->total > 0);\n";
          }
          if ($has_name) {
              if ($usesSmartyTotal) {
                  $output .= " \$_smarty_tpl->tpl_vars['smarty']->value['foreach'][$name]['total'] = \$_smarty_tpl->tpl_vars[$item]->total;\n";
              }
              if ($usesSmartyIteration) {
                  $output .= " \$_smarty_tpl->tpl_vars['smarty']->value['foreach'][$name]['iteration']=0;\n";
              }
              if ($usesSmartyIndex) {
                  $output .= " \$_smarty_tpl->tpl_vars['smarty']->value['foreach'][$name]['index']=-1;\n";
              }
              if ($usesSmartyShow) {
                  $output .= " \$_smarty_tpl->tpl_vars['smarty']->value['foreach'][$name]['show']=(\$_smarty_tpl->tpl_vars[$item]->total > 0);\n";
              }
          }
          $output .= "foreach (\$_from as \$_smarty_tpl->tpl_vars[$item]->key => \$_smarty_tpl->tpl_vars[$item]->value) {\n\$_smarty_tpl->tpl_vars[$item]->_loop = true;\n";
          if ($key != null) {
              $output .= " \$_smarty_tpl->tpl_vars[$key]->value = \$_smarty_tpl->tpl_vars[$item]->key;\n";
          }
          if ($usesPropIteration) {
              $output .= " \$_smarty_tpl->tpl_vars[$item]->iteration++;\n";
          }
          if ($usesPropIndex) {
              $output .= " \$_smarty_tpl->tpl_vars[$item]->index++;\n";
          }
          if ($usesPropFirst) {
              $output .= " \$_smarty_tpl->tpl_vars[$item]->first = \$_smarty_tpl->tpl_vars[$item]->index === 0;\n";
          }
          if ($usesPropLast) {
              $output .= " \$_smarty_tpl->tpl_vars[$item]->last = \$_smarty_tpl->tpl_vars[$item]->iteration === \$_smarty_tpl->tpl_vars[$item]->total;\n";
          }
          if ($has_name) {
              if ($usesSmartyFirst) {
                  $output .= " \$_smarty_tpl->tpl_vars['smarty']->value['foreach'][$name]['first'] = \$_smarty_tpl->tpl_vars[$item]->first;\n";
              }
              if ($usesSmartyIteration) {
                  $output .= " \$_smarty_tpl->tpl_vars['smarty']->value['foreach'][$name]['iteration']++;\n";
              }
              if ($usesSmartyIndex) {
                  $output .= " \$_smarty_tpl->tpl_vars['smarty']->value['foreach'][$name]['index']++;\n";
              }
              if ($usesSmartyLast) {
                  $output .= " \$_smarty_tpl->tpl_vars['smarty']->value['foreach'][$name]['last'] = \$_smarty_tpl->tpl_vars[$item]->last;\n";
              }
          }
          $output .= "?>";
  
          return $output;
      }
  }
  
  /**
   * Smarty Internal Plugin Compile Foreachelse Class
   *
   * @package Smarty
   * @subpackage Compiler
   */
  class Smarty_Internal_Compile_Foreachelse extends Smarty_Internal_CompileBase
  {
      /**
       * Compiles code for the {foreachelse} tag
       *
       * @param  array  $args      array with attributes from parser
       * @param  object $compiler  compiler object
       * @param  array  $parameter array with compilation parameter
       * @return string compiled code
       */
      public function compile($args, $compiler, $parameter)
      {
          // check and get attributes
          $_attr = $this->getAttributes($compiler, $args);
  
          list($openTag, $nocache, $item, $key) = $this->closeTag($compiler, array('foreach'));
          $this->openTag($compiler, 'foreachelse', array('foreachelse', $nocache, $item, $key));
  
          return "<?php }\nif (!\$_smarty_tpl->tpl_vars[$item]->_loop) {\n?>";
      }
  
  }
  
  /**
   * Smarty Internal Plugin Compile Foreachclose Class
   *
   * @package Smarty
   * @subpackage Compiler
   */
  class Smarty_Internal_Compile_Foreachclose extends Smarty_Internal_CompileBase
  {
      /**
       * Compiles code for the {/foreach} tag
       *
       * @param  array  $args      array with attributes from parser
       * @param  object $compiler  compiler object
       * @param  array  $parameter array with compilation parameter
       * @return string compiled code
       */
      public function compile($args, $compiler, $parameter)
      {
          // check and get attributes
          $_attr = $this->getAttributes($compiler, $args);
          // must endblock be nocache?
          if ($compiler->nocache) {
              $compiler->tag_nocache = true;
          }
  
          list($openTag, $compiler->nocache, $item, $key) = $this->closeTag($compiler, array('foreach', 'foreachelse'));
  
          return "<?php } ?>";
      }
  
  }
  