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   1  <?php
   2  /**
   3  * Smarty Internal Plugin Compile If
   4  *
   5  * Compiles the {if} {else} {elseif} {/if} tags
   6  *
   7  * @package Smarty
   8  * @subpackage Compiler
   9  * @author Uwe Tews
  10  */
  11  
  12  /**
  13  * Smarty Internal Plugin Compile If Class
  14  *
  15  * @package Smarty
  16  * @subpackage Compiler
  17  */
  18  class Smarty_Internal_Compile_If extends Smarty_Internal_CompileBase {
  19  
  20      /**
  21      * Compiles code for the {if} tag
  22      *
  23      * @param array  $args       array with attributes from parser
  24      * @param object $compiler   compiler object
  25      * @param array  $parameter  array with compilation parameter
  26      * @return string compiled code
  27      */
  28      public function compile($args, $compiler, $parameter)
  29      {
  30          // check and get attributes
  31          $_attr = $this->getAttributes($compiler, $args);
  32          $this->openTag($compiler, 'if', array(1, $compiler->nocache));
  33          // must whole block be nocache ?
  34          $compiler->nocache = $compiler->nocache | $compiler->tag_nocache;
  35  
  36          if (!array_key_exists("if condition",$parameter)) {
  37              $compiler->trigger_template_error("missing if condition", $compiler->lex->taglineno);
  38          }
  39  
  40          if (is_array($parameter['if condition'])) {
  41              if ($compiler->nocache) {
  42                  $_nocache = ',true';
  43                  // create nocache var to make it know for further compiling
  44                  if (is_array($parameter['if condition']['var'])) {
  45                      $compiler->template->tpl_vars[trim($parameter['if condition']['var']['var'], "'")] = new Smarty_variable(null, true);
  46                  } else {
  47                      $compiler->template->tpl_vars[trim($parameter['if condition']['var'], "'")] = new Smarty_variable(null, true);
  48                  }
  49              } else {
  50                  $_nocache = '';
  51              }
  52              if (is_array($parameter['if condition']['var'])) {
  53                  $_output = "<?php if (!isset(\$_smarty_tpl->tpl_vars[".$parameter['if condition']['var']['var']."]) || !is_array(\$_smarty_tpl->tpl_vars[".$parameter['if condition']['var']['var']."]->value)) \$_smarty_tpl->createLocalArrayVariable(".$parameter['if condition']['var']['var']."$_nocache);\n";
  54                  $_output .= "if (\$_smarty_tpl->tpl_vars[".$parameter['if condition']['var']['var']."]->value".$parameter['if condition']['var']['smarty_internal_index']." = ".$parameter['if condition']['value']."){?>";
  55              } else {
  56                  $_output = "<?php if (!isset(\$_smarty_tpl->tpl_vars[".$parameter['if condition']['var']."])) \$_smarty_tpl->tpl_vars[".$parameter['if condition']['var']."] = new Smarty_Variable(null{$_nocache});";
  57                  $_output .= "if (\$_smarty_tpl->tpl_vars[".$parameter['if condition']['var']."]->value = ".$parameter['if condition']['value']."){?>";
  58              }
  59              return $_output;
  60          } else {
  61              return "<?php if ({$parameter['if condition']}){?>";
  62          }
  63      }
  64  
  65  }
  66  
  67  /**
  68  * Smarty Internal Plugin Compile Else Class
  69  *
  70  * @package Smarty
  71  * @subpackage Compiler
  72  */
  73  class Smarty_Internal_Compile_Else extends Smarty_Internal_CompileBase {
  74  
  75      /**
  76      * Compiles code for the {else} tag
  77      *
  78      * @param array  $args       array with attributes from parser
  79      * @param object $compiler   compiler object
  80      * @param array  $parameter  array with compilation parameter
  81      * @return string compiled code
  82      */
  83      public function compile($args, $compiler, $parameter)
  84      {
  85          list($nesting, $compiler->tag_nocache) = $this->closeTag($compiler, array('if', 'elseif'));
  86          $this->openTag($compiler, 'else', array($nesting, $compiler->tag_nocache));
  87  
  88          return "<?php }else{ ?>";
  89      }
  90  
  91  }
  92  
  93  /**
  94  * Smarty Internal Plugin Compile ElseIf Class
  95  *
  96  * @package Smarty
  97  * @subpackage Compiler
  98  */
  99  class Smarty_Internal_Compile_Elseif extends Smarty_Internal_CompileBase {
 100  
 101      /**
 102      * Compiles code for the {elseif} tag
 103      *
 104      * @param array  $args       array with attributes from parser
 105      * @param object $compiler   compiler object
 106      * @param array  $parameter  array with compilation parameter
 107      * @return string compiled code
 108      */
 109      public function compile($args, $compiler, $parameter)
 110      {
 111          // check and get attributes
 112          $_attr = $this->getAttributes($compiler, $args);
 113  
 114          list($nesting, $compiler->tag_nocache) = $this->closeTag($compiler, array('if', 'elseif'));
 115  
 116          if (!array_key_exists("if condition",$parameter)) {
 117              $compiler->trigger_template_error("missing elseif condition", $compiler->lex->taglineno);
 118          }
 119  
 120          if (is_array($parameter['if condition'])) {
 121              $condition_by_assign = true;
 122              if ($compiler->nocache) {
 123                  $_nocache = ',true';
 124                  // create nocache var to make it know for further compiling
 125                  if (is_array($parameter['if condition']['var'])) {
 126                      $compiler->template->tpl_vars[trim($parameter['if condition']['var']['var'], "'")] = new Smarty_variable(null, true);
 127                  } else {
 128                      $compiler->template->tpl_vars[trim($parameter['if condition']['var'], "'")] = new Smarty_variable(null, true);
 129                  }
 130              } else {
 131                  $_nocache = '';
 132              }
 133          } else {
 134              $condition_by_assign = false;
 135          }
 136  
 137          if (empty($compiler->prefix_code)) {
 138              if ($condition_by_assign) {
 139                  $this->openTag($compiler, 'elseif', array($nesting + 1, $compiler->tag_nocache));
 140                  if (is_array($parameter['if condition']['var'])) {
 141                      $_output = "<?php }else{ if (!isset(\$_smarty_tpl->tpl_vars[" . $parameter['if condition']['var']['var'] . "]) || !is_array(\$_smarty_tpl->tpl_vars[" . $parameter['if condition']['var']['var'] . "]->value)) \$_smarty_tpl->createLocalArrayVariable(" . $parameter['if condition']['var']['var'] . "$_nocache);\n";
 142                      $_output .= "if (\$_smarty_tpl->tpl_vars[" . $parameter['if condition']['var']['var'] . "]->value" . $parameter['if condition']['var']['smarty_internal_index'] . " = " . $parameter['if condition']['value'] . "){?>";
 143                  } else {
 144                      $_output = "<?php  }else{ if (!isset(\$_smarty_tpl->tpl_vars[" . $parameter['if condition']['var'] . "])) \$_smarty_tpl->tpl_vars[" . $parameter['if condition']['var'] . "] = new Smarty_Variable(null{$_nocache});";
 145                      $_output .= "if (\$_smarty_tpl->tpl_vars[" . $parameter['if condition']['var'] . "]->value = " . $parameter['if condition']['value'] . "){?>";
 146                  }
 147                  return $_output;
 148              } else {
 149                  $this->openTag($compiler, 'elseif', array($nesting, $compiler->tag_nocache));
 150                  return "<?php }elseif({$parameter['if condition']}){?>";
 151              }
 152          } else {
 153              $tmp = '';
 154              foreach ($compiler->prefix_code as $code)
 155              $tmp .= $code;
 156              $compiler->prefix_code = array();
 157              $this->openTag($compiler, 'elseif', array($nesting + 1, $compiler->tag_nocache));
 158              if ($condition_by_assign) {
 159                  if (is_array($parameter['if condition']['var'])) {
 160                      $_output = "<?php }else{?>{$tmp}<?php  if (!isset(\$_smarty_tpl->tpl_vars[" . $parameter['if condition']['var']['var'] . "]) || !is_array(\$_smarty_tpl->tpl_vars[" . $parameter['if condition']['var']['var'] . "]->value)) \$_smarty_tpl->createLocalArrayVariable(" . $parameter['if condition']['var']['var'] . "$_nocache);\n";
 161                      $_output .= "if (\$_smarty_tpl->tpl_vars[" . $parameter['if condition']['var']['var'] . "]->value" . $parameter['if condition']['var']['smarty_internal_index'] . " = " . $parameter['if condition']['value'] . "){?>";
 162                  } else {
 163                      $_output = "<?php }else{?>{$tmp}<?php if (!isset(\$_smarty_tpl->tpl_vars[" . $parameter['if condition']['var'] . "])) \$_smarty_tpl->tpl_vars[" . $parameter['if condition']['var'] . "] = new Smarty_Variable(null{$_nocache});";
 164                      $_output .= "if (\$_smarty_tpl->tpl_vars[" . $parameter['if condition']['var'] . "]->value = " . $parameter['if condition']['value'] . "){?>";
 165                  }
 166                  return $_output;
 167              } else {
 168                  return "<?php }else{?>{$tmp}<?php if ({$parameter['if condition']}){?>";
 169              }
 170          }
 171      }
 172  
 173  }
 174  
 175  /**
 176  * Smarty Internal Plugin Compile Ifclose Class
 177  *
 178  * @package Smarty
 179  * @subpackage Compiler
 180  */
 181  class Smarty_Internal_Compile_Ifclose extends Smarty_Internal_CompileBase {
 182  
 183      /**
 184      * Compiles code for the {/if} tag
 185      *
 186      * @param array  $args       array with attributes from parser
 187      * @param object $compiler   compiler object
 188      * @param array  $parameter  array with compilation parameter
 189      * @return string compiled code
 190      */
 191      public function compile($args, $compiler, $parameter)
 192      {
 193          // must endblock be nocache?
 194          if ($compiler->nocache) {
 195              $compiler->tag_nocache = true;
 196          }
 197          list($nesting, $compiler->nocache) = $this->closeTag($compiler, array('if', 'else', 'elseif'));
 198          $tmp = '';
 199          for ($i = 0; $i < $nesting; $i++) {
 200              $tmp .= '}';
 201          }
 202          return "<?php {$tmp}?>";
 203      }
 204  
 205  }
 206  
 207  ?>