lib/api/smarty/sysplugins/smarty_internal_parsetree_template.php

   1 <?php
   2 /**
   3  * Smarty Internal Plugin Templateparser Parse Tree
   4  * These are classes to build parse tree in the template parser
   5  *
   6  * @package    Smarty
   7  * @subpackage Compiler
   8  * @author     Thue Kristensen
   9  * @author     Uwe Tews
  10  */
  11
  12 /**
  13  * Template element
  14  *
  15  * @package    Smarty
  16  * @subpackage Compiler
  17  * @ignore
  18  */
  19 class Smarty_Internal_ParseTree_Template extends Smarty_Internal_ParseTree
  20 {
  21
  22     /**
  23      * Array of template elements
  24      *
  25      * @var array
  26      */
  27     public $subtrees = Array();
  28
  29     /**
  30      * Create root of parse tree for template elements
  31      *
  32      * @param object $parser parse object
  33      */
  34     public function __construct($parser)
  35     {
  36         $this->parser = $parser;
  37     }
  38
  39     /**
  40      * Append buffer to subtree
  41      *
  42      * @param Smarty_Internal_ParseTree $subtree
  43      */
  44     public function append_subtree(Smarty_Internal_ParseTree $subtree)
  45     {
  46         if (!empty($subtree->subtrees)) {
  47             $this->subtrees = array_merge($this->subtrees, $subtree->subtrees);
  48         } else {
  49             if ($subtree->data !== '') {
  50                 $this->subtrees[] = $subtree;
  51             }
  52         }
  53     }
  54
  55     /**
  56      * Sanitize and merge subtree buffers together
  57      *
  58      * @return string template code content
  59      */
  60     public function to_smarty_php()
  61     {
  62         $code = '';
  63         for ($key = 0, $cnt = count($this->subtrees); $key < $cnt; $key ++) {
  64             if ($this->subtrees[$key] instanceof Smarty_Internal_ParseTree_Text) {
  65                 $subtree = $this->subtrees[$key]->to_smarty_php();
  66                 while ($key + 1 < $cnt && ($this->subtrees[$key + 1] instanceof Smarty_Internal_ParseTree_Text || $this->subtrees[$key + 1]->data == '')) {
  67                     $key ++;
  68                     if ($this->subtrees[$key]->data == '') {
  69                         continue;
  70                     }
  71                     $subtree .= $this->subtrees[$key]->to_smarty_php();
  72                 }
  73                 if ($subtree == '') {
  74                     continue;
  75                 }
  76                 $code .= preg_replace('/((<%)|(%>)|(<\?php)|(<\?)|(\?>)|(<\/?script))/', "<?php echo '\$1'; ?>\n", $subtree);
  77                 continue;
  78             }
  79             if ($this->subtrees[$key] instanceof Smarty_Internal_ParseTree_Tag) {
  80                 $subtree = $this->subtrees[$key]->to_smarty_php();
  81                 while ($key + 1 < $cnt && ($this->subtrees[$key + 1] instanceof Smarty_Internal_ParseTree_Tag || $this->subtrees[$key + 1]->data == '')) {
  82                     $key ++;
  83                     if ($this->subtrees[$key]->data == '') {
  84                         continue;
  85                     }
  86                     $subtree = $this->parser->compiler->appendCode($subtree, $this->subtrees[$key]->to_smarty_php());
  87                 }
  88                 if ($subtree == '') {
  89                     continue;
  90                 }
  91                 $code .= $subtree;
  92                 continue;
  93             }
  94             $code .= $this->subtrees[$key]->to_smarty_php();
  95         }
  96         return $code;
  97     }
  98 }