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      * Array of template elements

    23      *

    24      * @var array

    25      */

    26     public $subtrees = Array();

    27 

    28     /**

    29      * Create root of parse tree for template elements

    30      *

    31      * @param object $parser parse object

    32      */

    33     public function __construct($parser) {

    34         $this->parser = $parser;

    35     }

    36 

    37     /**

    38      * Append buffer to subtree

    39      *

    40      * @param Smarty_Internal_ParseTree $subtree

    41      */

    42     public function append_subtree(Smarty_Internal_ParseTree $subtree) {

    43         if (!empty($subtree->subtrees)) {

    44             $this->subtrees = array_merge($this->subtrees, $subtree->subtrees);

    45         } else {

    46             if ($subtree->data !== '') {

    47                 $this->subtrees[] = $subtree;

    48             }

    49         }

    50     }

    51 

    52     /**

    53      * Sanitize and merge subtree buffers together

    54      *

    55      * @return string template code content

    56      */

    57     public function to_smarty_php() {

    58         $code = '';

    59         for ($key = 0, $cnt = count($this->subtrees); $key < $cnt; $key++) {

    60             if ($this->subtrees[$key] instanceof Smarty_Internal_ParseTree_Text) {

    61                 $subtree = $this->subtrees[$key]->to_smarty_php();

    62                 while ($key + 1 < $cnt && ($this->subtrees[$key + 1] instanceof Smarty_Internal_ParseTree_Text || $this->subtrees[$key + 1]->data == '')) {

    63                     $key++;

    64                     if ($this->subtrees[$key]->data == '') {

    65                         continue;

    66                     }

    67                     $subtree .= $this->subtrees[$key]->to_smarty_php();

    68                 }

    69                 if ($subtree == '') {

    70                     continue;

    71                 }

    72                 $code .= preg_replace('/((<%)|(%>)|(<\?php)|(<\?)|(\?>)|(<\/?script))/', "<?php echo '\$1'; ?>\n", $subtree);

    73                 continue;

    74             }

    75             if ($this->subtrees[$key] instanceof Smarty_Internal_ParseTree_Tag) {

    76                 $subtree = $this->subtrees[$key]->to_smarty_php();

    77                 while ($key + 1 < $cnt && ($this->subtrees[$key + 1] instanceof Smarty_Internal_ParseTree_Tag || $this->subtrees[$key + 1]->data == '')) {

    78                     $key++;

    79                     if ($this->subtrees[$key]->data == '') {

    80                         continue;

    81                     }

    82                     $subtree = $this->parser->compiler->appendCode($subtree, $this->subtrees[$key]->to_smarty_php());

    83                 }

    84                 if ($subtree == '') {

    85                     continue;

    86                 }

    87                 $code .= $subtree;

    88                 continue;

    89             }

    90             $code .= $this->subtrees[$key]->to_smarty_php();

    91         }

    92         return $code;

    93     }

    94 }