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395 lines
9.4 KiB
PHTML
395 lines
9.4 KiB
PHTML
5 years ago
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<?php
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/**
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* Smarty Internal Plugin Templateparser Parsetrees
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*
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* These are classes to build parsetrees in the template parser
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*
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* @package Smarty
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* @subpackage Compiler
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* @author Thue Kristensen
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* @author Uwe Tews
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*/
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/**
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* @package Smarty
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* @subpackage Compiler
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* @ignore
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*/
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abstract class _smarty_parsetree {
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/**
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* Parser object
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* @var object
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*/
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public $parser;
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/**
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* Buffer content
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* @var mixed
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*/
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public $data;
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/**
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* Return buffer
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*
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* @return string buffer content
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*/
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abstract public function to_smarty_php();
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}
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/**
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* A complete smarty tag.
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*
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* @package Smarty
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* @subpackage Compiler
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* @ignore
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*/
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class _smarty_tag extends _smarty_parsetree {
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/**
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* Saved block nesting level
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* @var int
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*/
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public $saved_block_nesting;
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/**
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* Create parse tree buffer for Smarty tag
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*
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* @param object $parser parser object
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* @param string $data content
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*/
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public function __construct($parser, $data)
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{
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$this->parser = $parser;
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$this->data = $data;
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$this->saved_block_nesting = $parser->block_nesting_level;
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}
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/**
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* Return buffer content
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*
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* @return string content
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*/
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public function to_smarty_php()
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{
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return $this->data;
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}
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/**
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* Return complied code that loads the evaluated outout of buffer content into a temporary variable
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*
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* @return string template code
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*/
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public function assign_to_var()
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{
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$var = sprintf('$_tmp%d', ++$this->parser->prefix_number);
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$this->parser->compiler->prefix_code[] = sprintf('<?php ob_start();?>%s<?php %s=ob_get_clean();?>', $this->data, $var);
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return $var;
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}
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}
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/**
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* Code fragment inside a tag.
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*
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* @package Smarty
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* @subpackage Compiler
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* @ignore
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*/
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class _smarty_code extends _smarty_parsetree {
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/**
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* Create parse tree buffer for code fragment
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*
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* @param object $parser parser object
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* @param string $data content
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*/
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public function __construct($parser, $data)
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{
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$this->parser = $parser;
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$this->data = $data;
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}
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/**
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* Return buffer content in parentheses
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*
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* @return string content
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*/
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public function to_smarty_php()
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{
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return sprintf("(%s)", $this->data);
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}
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}
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/**
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* Double quoted string inside a tag.
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*
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* @package Smarty
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* @subpackage Compiler
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* @ignore
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*/
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class _smarty_doublequoted extends _smarty_parsetree {
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/**
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* Create parse tree buffer for double quoted string subtrees
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*
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* @param object $parser parser object
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* @param _smarty_parsetree $subtree parsetree buffer
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*/
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public function __construct($parser, _smarty_parsetree $subtree)
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{
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$this->parser = $parser;
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$this->subtrees[] = $subtree;
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if ($subtree instanceof _smarty_tag) {
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$this->parser->block_nesting_level = count($this->parser->compiler->_tag_stack);
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}
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}
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/**
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* Append buffer to subtree
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*
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* @param _smarty_parsetree $subtree parsetree buffer
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*/
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public function append_subtree(_smarty_parsetree $subtree)
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{
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$last_subtree = count($this->subtrees) - 1;
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if ($last_subtree >= 0 && $this->subtrees[$last_subtree] instanceof _smarty_tag && $this->subtrees[$last_subtree]->saved_block_nesting < $this->parser->block_nesting_level) {
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if ($subtree instanceof _smarty_code) {
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$this->subtrees[$last_subtree]->data .= '<?php echo ' . $subtree->data . ';?>';
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} elseif ($subtree instanceof _smarty_dq_content) {
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$this->subtrees[$last_subtree]->data .= '<?php echo "' . $subtree->data . '";?>';
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} else {
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$this->subtrees[$last_subtree]->data .= $subtree->data;
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}
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} else {
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$this->subtrees[] = $subtree;
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}
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if ($subtree instanceof _smarty_tag) {
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$this->parser->block_nesting_level = count($this->parser->compiler->_tag_stack);
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}
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}
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/**
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* Merge subtree buffer content together
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*
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* @return string compiled template code
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*/
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public function to_smarty_php()
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{
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$code = '';
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foreach ($this->subtrees as $subtree) {
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if ($code !== "") {
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$code .= ".";
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}
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if ($subtree instanceof _smarty_tag) {
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$more_php = $subtree->assign_to_var();
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} else {
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$more_php = $subtree->to_smarty_php();
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}
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$code .= $more_php;
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if (!$subtree instanceof _smarty_dq_content) {
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$this->parser->compiler->has_variable_string = true;
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}
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}
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return $code;
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}
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}
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/**
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* Raw chars as part of a double quoted string.
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*
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* @package Smarty
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* @subpackage Compiler
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* @ignore
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*/
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class _smarty_dq_content extends _smarty_parsetree {
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/**
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* Create parse tree buffer with string content
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*
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* @param object $parser parser object
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* @param string $data string section
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*/
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public function __construct($parser, $data)
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{
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$this->parser = $parser;
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$this->data = $data;
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}
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/**
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* Return content as double quoted string
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*
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* @return string doubled quoted string
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*/
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public function to_smarty_php()
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{
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return '"' . $this->data . '"';
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}
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}
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/**
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* Template element
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*
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* @package Smarty
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* @subpackage Compiler
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* @ignore
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*/
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class _smarty_template_buffer extends _smarty_parsetree {
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/**
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* Array of template elements
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*
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* @var array
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*/
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public $subtrees = Array();
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/**
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* Create root of parse tree for template elements
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*
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* @param object $parser parse object
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*/
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public function __construct($parser)
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{
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$this->parser = $parser;
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}
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/**
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* Append buffer to subtree
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*
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* @param _smarty_parsetree $subtree
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*/
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public function append_subtree(_smarty_parsetree $subtree)
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{
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$this->subtrees[] = $subtree;
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}
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/**
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* Sanitize and merge subtree buffers together
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*
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* @return string template code content
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*/
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public function to_smarty_php()
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{
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$code = '';
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for ($key = 0, $cnt = count($this->subtrees); $key < $cnt; $key++) {
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if ($key + 2 < $cnt) {
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if ($this->subtrees[$key] instanceof _smarty_linebreak && $this->subtrees[$key + 1] instanceof _smarty_tag && $this->subtrees[$key + 1]->data == '' && $this->subtrees[$key + 2] instanceof _smarty_linebreak) {
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$key = $key + 1;
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continue;
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}
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if (substr($this->subtrees[$key]->data, -1) == '<' && $this->subtrees[$key + 1]->data == '' && substr($this->subtrees[$key + 2]->data, -1) == '?') {
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$key = $key + 2;
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continue;
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}
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}
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if (substr($code, -1) == '<') {
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$subtree = $this->subtrees[$key]->to_smarty_php();
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if (substr($subtree, 0, 1) == '?') {
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$code = substr($code, 0, strlen($code) - 1) . '<<?php ?>?' . substr($subtree, 1);
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} elseif ($this->parser->asp_tags && substr($subtree, 0, 1) == '%') {
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$code = substr($code, 0, strlen($code) - 1) . '<<?php ?>%' . substr($subtree, 1);
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} else {
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$code .= $subtree;
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}
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continue;
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}
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if ($this->parser->asp_tags && substr($code, -1) == '%') {
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$subtree = $this->subtrees[$key]->to_smarty_php();
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if (substr($subtree, 0, 1) == '>') {
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$code = substr($code, 0, strlen($code) - 1) . '%<?php ?>>' . substr($subtree, 1);
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} else {
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$code .= $subtree;
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}
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continue;
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}
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if (substr($code, -1) == '?') {
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$subtree = $this->subtrees[$key]->to_smarty_php();
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if (substr($subtree, 0, 1) == '>') {
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$code = substr($code, 0, strlen($code) - 1) . '?<?php ?>>' . substr($subtree, 1);
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} else {
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$code .= $subtree;
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}
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continue;
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}
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$code .= $this->subtrees[$key]->to_smarty_php();
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}
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return $code;
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}
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}
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/**
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* template text
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*
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* @package Smarty
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* @subpackage Compiler
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* @ignore
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*/
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class _smarty_text extends _smarty_parsetree {
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/**
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* Create template text buffer
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*
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* @param object $parser parser object
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* @param string $data text
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*/
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public function __construct($parser, $data)
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{
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$this->parser = $parser;
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$this->data = $data;
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}
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/**
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* Return buffer content
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*
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* @return strint text
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*/
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public function to_smarty_php()
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{
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return $this->data;
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}
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}
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/**
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* template linebreaks
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*
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* @package Smarty
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* @subpackage Compiler
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* @ignore
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*/
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class _smarty_linebreak extends _smarty_parsetree {
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/**
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* Create buffer with linebreak content
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*
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* @param object $parser parser object
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* @param string $data linebreak string
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*/
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public function __construct($parser, $data)
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{
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$this->parser = $parser;
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$this->data = $data;
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}
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/**
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* Return linebrak
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*
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* @return string linebreak
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*/
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public function to_smarty_php()
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{
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return $this->data;
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}
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}
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?>
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