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   1  <?php
   2  /**
   3   * Smarty Internal Plugin Compile Section
   4   *
   5   * Compiles the {section} {sectionelse} {/section} tags
   6   *
   7   * @package Smarty
   8   * @subpackage Compiler
   9   * @author Uwe Tews
  10   */
  11  
  12  /**
  13   * Smarty Internal Plugin Compile Section Class
  14   * 
  15   * @package Smarty
  16   * @subpackage Compiler
  17   */
  18  class Smarty_Internal_Compile_Section 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('name', 'loop');
  27      /**
  28       * Attribute definition: Overwrites base class.
  29       *
  30       * @var array
  31       * @see Smarty_Internal_CompileBase
  32       */
  33      public $shorttag_order = array('name', 'loop');
  34      /**
  35       * Attribute definition: Overwrites base class.
  36       *
  37       * @var array
  38       * @see Smarty_Internal_CompileBase
  39       */
  40      public $optional_attributes = array('start', 'step', 'max', 'show');
  41  
  42      /**
  43       * Compiles code for the {section} 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          // check and get attributes
  52          $_attr = $this->getAttributes($compiler, $args);
  53  
  54          $this->openTag($compiler, 'section', array('section', $compiler->nocache));
  55          // maybe nocache because of nocache variables
  56          $compiler->nocache = $compiler->nocache | $compiler->tag_nocache;
  57  
  58          $output = "<?php ";
  59  
  60          $section_name = $_attr['name'];
  61  
  62          $output .= "if (isset(\$_smarty_tpl->tpl_vars['smarty']->value['section'][$section_name])) unset(\$_smarty_tpl->tpl_vars['smarty']->value['section'][$section_name]);\n";
  63          $section_props = "\$_smarty_tpl->tpl_vars['smarty']->value['section'][$section_name]";
  64  
  65          foreach ($_attr as $attr_name => $attr_value) {
  66              switch ($attr_name) {
  67                  case 'loop':
  68                      $output .= "{$section_props}['loop'] = is_array(\$_loop=$attr_value) ? count(\$_loop) : max(0, (int)\$_loop); unset(\$_loop);\n";
  69                      break;
  70  
  71                  case 'show':
  72                      if (is_bool($attr_value))
  73                          $show_attr_value = $attr_value ? 'true' : 'false';
  74                      else
  75                          $show_attr_value = "(bool)$attr_value";
  76                      $output .= "{$section_props}['show'] = $show_attr_value;\n";
  77                      break;
  78  
  79                  case 'name':
  80                      $output .= "{$section_props}['$attr_name'] = $attr_value;\n";
  81                      break;
  82  
  83                  case 'max':
  84                  case 'start':
  85                      $output .= "{$section_props}['$attr_name'] = (int)$attr_value;\n";
  86                      break;
  87  
  88                  case 'step':
  89                      $output .= "{$section_props}['$attr_name'] = ((int)$attr_value) == 0 ? 1 : (int)$attr_value;\n";
  90                      break;
  91              }
  92          }
  93  
  94          if (!isset($_attr['show']))
  95              $output .= "{$section_props}['show'] = true;\n";
  96  
  97          if (!isset($_attr['loop']))
  98              $output .= "{$section_props}['loop'] = 1;\n";
  99  
 100          if (!isset($_attr['max']))
 101              $output .= "{$section_props}['max'] = {$section_props}['loop'];\n";
 102          else
 103              $output .= "if ({$section_props}['max'] < 0)\n" . "    {$section_props}['max'] = {$section_props}['loop'];\n";
 104  
 105          if (!isset($_attr['step']))
 106              $output .= "{$section_props}['step'] = 1;\n";
 107  
 108          if (!isset($_attr['start']))
 109              $output .= "{$section_props}['start'] = {$section_props}['step'] > 0 ? 0 : {$section_props}['loop']-1;\n";
 110          else {
 111              $output .= "if ({$section_props}['start'] < 0)\n" . "    {$section_props}['start'] = max({$section_props}['step'] > 0 ? 0 : -1, {$section_props}['loop'] + {$section_props}['start']);\n" . "else\n" . "    {$section_props}['start'] = min({$section_props}['start'], {$section_props}['step'] > 0 ? {$section_props}['loop'] : {$section_props}['loop']-1);\n";
 112          }
 113  
 114          $output .= "if ({$section_props}['show']) {\n";
 115          if (!isset($_attr['start']) && !isset($_attr['step']) && !isset($_attr['max'])) {
 116              $output .= "    {$section_props}['total'] = {$section_props}['loop'];\n";
 117          } else {
 118              $output .= "    {$section_props}['total'] = min(ceil(({$section_props}['step'] > 0 ? {$section_props}['loop'] - {$section_props}['start'] : {$section_props}['start']+1)/abs({$section_props}['step'])), {$section_props}['max']);\n";
 119          }
 120          $output .= "    if ({$section_props}['total'] == 0)\n" . "        {$section_props}['show'] = false;\n" . "} else\n" . "    {$section_props}['total'] = 0;\n";
 121  
 122          $output .= "if ({$section_props}['show']):\n";
 123          $output .= "
 124              for ({$section_props}['index'] = {$section_props}['start'], {$section_props}['iteration'] = 1;
 125                   {$section_props}['iteration'] <= {$section_props}['total'];
 126                   {$section_props}['index'] += {$section_props}['step'], {$section_props}['iteration']++):\n";
 127          $output .= "{$section_props}['rownum'] = {$section_props}['iteration'];\n";
 128          $output .= "{$section_props}['index_prev'] = {$section_props}['index'] - {$section_props}['step'];\n";
 129          $output .= "{$section_props}['index_next'] = {$section_props}['index'] + {$section_props}['step'];\n";
 130          $output .= "{$section_props}['first']      = ({$section_props}['iteration'] == 1);\n";
 131          $output .= "{$section_props}['last']       = ({$section_props}['iteration'] == {$section_props}['total']);\n";
 132  
 133          $output .= "?>";
 134          return $output;
 135      }
 136  
 137  }
 138  
 139  /**
 140   * Smarty Internal Plugin Compile Sectionelse Class
 141   * 
 142   * @package Smarty
 143   * @subpackage Compiler
 144   */
 145  class Smarty_Internal_Compile_Sectionelse extends Smarty_Internal_CompileBase {
 146  
 147      /**
 148       * Compiles code for the {sectionelse} tag
 149       *
 150       * @param array  $args     array with attributes from parser
 151       * @param object $compiler compiler object
 152       * @return string compiled code
 153       */
 154      public function compile($args, $compiler)
 155      {
 156          // check and get attributes
 157          $_attr = $this->getAttributes($compiler, $args);
 158  
 159          list($openTag, $nocache) = $this->closeTag($compiler, array('section'));
 160          $this->openTag($compiler, 'sectionelse', array('sectionelse', $nocache));
 161  
 162          return "<?php endfor; else: ?>";
 163      }
 164  
 165  }
 166  
 167  /**
 168   * Smarty Internal Plugin Compile Sectionclose Class
 169   * 
 170   * @package Smarty
 171   * @subpackage Compiler
 172   */
 173  class Smarty_Internal_Compile_Sectionclose extends Smarty_Internal_CompileBase {
 174  
 175      /**
 176       * Compiles code for the {/section} tag
 177       *
 178       * @param array  $args     array with attributes from parser
 179       * @param object $compiler compiler object
 180       * @return string compiled code
 181       */
 182      public function compile($args, $compiler)
 183      {
 184          // check and get attributes
 185          $_attr = $this->getAttributes($compiler, $args);
 186  
 187          // must endblock be nocache?
 188          if ($compiler->nocache) {
 189              $compiler->tag_nocache = true;
 190          }
 191  
 192          list($openTag, $compiler->nocache) = $this->closeTag($compiler, array('section', 'sectionelse'));
 193  
 194          if ($openTag == 'sectionelse') {
 195              return "<?php endif; ?>";
 196          } else {
 197              return "<?php endfor; endif; ?>";
 198          }
 199      }
 200  
 201  }
 202  
 203  ?>