mirror of
https://github.com/smarty-php/smarty.git
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630 lines
29 KiB
PHP
630 lines
29 KiB
PHP
<?php
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/**
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* Smarty Internal Plugin Smarty Template Compiler Base
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*
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* This file contains the basic classes and methodes for compiling Smarty templates with lexer/parser
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*
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* @package Smarty
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* @subpackage Compiler
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* @author Uwe Tews
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*/
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/**
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* Main abstract compiler class
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*
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* @package Smarty
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* @subpackage Compiler
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*/
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abstract class Smarty_Internal_TemplateCompilerBase {
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/**
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* hash for nocache sections
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*
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* @var mixed
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*/
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private $nocache_hash = null;
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/**
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* suppress generation of nocache code
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*
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* @var bool
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*/
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public $suppressNocacheProcessing = false;
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/**
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* suppress generation of merged template code
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*
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* @var bool
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*/
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public $suppressMergedTemplates = false;
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/**
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* compile tag objects
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*
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* @var array
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*/
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public static $_tag_objects = array();
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/**
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* tag stack
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*
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* @var array
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*/
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public $_tag_stack = array();
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/**
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* current template
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*
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* @var Smarty_Internal_Template
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*/
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public $template = null;
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/**
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* merged templates
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*
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* @var array
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*/
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public $merged_templates = array();
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/**
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* flag when compiling {block}
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*
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* @var bool
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*/
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public $inheritance = false;
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/**
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* plugins loaded by default plugin handler
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*
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* @var array
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*/
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public $default_handler_plugins = array();
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/**
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* saved preprocessed modifier list
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*
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* @var mixed
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*/
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public $default_modifier_list = null;
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/**
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* force compilation of complete template as nocache
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* @var boolean
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*/
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public $forceNocache = false;
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/**
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* suppress Smarty header code in compiled template
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* @var bool
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*/
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public $suppressHeader = false;
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/**
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* suppress template property header code in compiled template
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* @var bool
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*/
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public $suppressTemplatePropertyHeader = false;
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/**
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* flag if compiled template file shall we written
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* @var bool
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*/
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public $write_compiled_code = true;
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/**
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* flag if currently a template function is compiled
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* @var bool
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*/
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public $compiles_template_function = false;
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/**
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* called subfuntions from template function
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* @var array
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*/
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public $called_functions = array();
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/**
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* flags for used modifier plugins
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* @var array
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*/
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public $modifier_plugins = array();
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/**
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* Initialize compiler
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*/
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public function __construct()
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{
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$this->nocache_hash = str_replace('.', '-', uniqid(rand(), true));
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}
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/**
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* Method to compile a Smarty template
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*
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* @param Smarty_Internal_Template $template template object to compile
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* @return bool true if compiling succeeded, false if it failed
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*/
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public function compileTemplate(Smarty_Internal_Template $template)
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{
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if (empty($template->properties['nocache_hash'])) {
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$template->properties['nocache_hash'] = $this->nocache_hash;
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} else {
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$this->nocache_hash = $template->properties['nocache_hash'];
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}
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// flag for nochache sections
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$this->nocache = false;
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$this->tag_nocache = false;
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// save template object in compiler class
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$this->template = $template;
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// reset has noche code flag
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$this->template->has_nocache_code = false;
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$this->smarty->_current_file = $saved_filepath = $this->template->source->filepath;
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// template header code
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$template_header = '';
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if (!$this->suppressHeader) {
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$template_header .= "<?php /* Smarty version " . Smarty::SMARTY_VERSION . ", created on " . strftime("%Y-%m-%d %H:%M:%S") . "\n";
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$template_header .= " compiled from \"" . $this->template->source->filepath . "\" */ ?>\n";
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}
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do {
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// flag for aborting current and start recompile
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$this->abort_and_recompile = false;
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// get template source
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$_content = $template->source->content;
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// run prefilter if required
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if (isset($this->smarty->autoload_filters['pre']) || isset($this->smarty->registered_filters['pre'])) {
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$template->source->content = $_content = Smarty_Internal_Filter_Handler::runFilter('pre', $_content, $template);
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}
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// on empty template just return header
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if ($_content == '') {
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if ($this->suppressTemplatePropertyHeader) {
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$code = '';
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} else {
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$code = $template_header . $template->createTemplateCodeFrame();
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}
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return $code;
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}
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// call compiler
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$_compiled_code = $this->doCompile($_content);
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} while ($this->abort_and_recompile);
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$this->template->source->filepath = $saved_filepath;
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// free memory
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unset($this->parser->root_buffer, $this->parser->current_buffer, $this->parser, $this->lex, $this->template);
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self::$_tag_objects = array();
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// return compiled code to template object
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$merged_code = '';
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if (!$this->suppressMergedTemplates && !empty($this->merged_templates)) {
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foreach ($this->merged_templates as $code) {
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$merged_code .= $code;
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}
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// run postfilter if required on merged code
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if (isset($this->smarty->autoload_filters['post']) || isset($this->smarty->registered_filters['post'])) {
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$merged_code = Smarty_Internal_Filter_Handler::runFilter('post', $merged_code, $template);
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}
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}
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// run postfilter if required on compiled template code
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if (isset($this->smarty->autoload_filters['post']) || isset($this->smarty->registered_filters['post'])) {
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$_compiled_code = Smarty_Internal_Filter_Handler::runFilter('post', $_compiled_code, $template);
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}
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if ($this->suppressTemplatePropertyHeader) {
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$code = $_compiled_code . $merged_code;
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} else {
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$code = $template_header . $template->createTemplateCodeFrame($_compiled_code) . $merged_code;
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}
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return $code;
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}
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/**
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* Compile Tag
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*
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* This is a call back from the lexer/parser
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* It executes the required compile plugin for the Smarty tag
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*
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* @param string $tag tag name
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* @param array $args array with tag attributes
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* @param array $parameter array with compilation parameter
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* @return string compiled code
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*/
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public function compileTag($tag, $args, $parameter = array())
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{
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// $args contains the attributes parsed and compiled by the lexer/parser
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// assume that tag does compile into code, but creates no HTML output
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$this->has_code = true;
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$this->has_output = false;
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// log tag/attributes
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if (isset($this->smarty->get_used_tags) && $this->smarty->get_used_tags) {
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$this->template->used_tags[] = array($tag, $args);
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}
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// check nocache option flag
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if (in_array("'nocache'",$args) || in_array(array('nocache'=>'true'),$args)
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|| in_array(array('nocache'=>'"true"'),$args) || in_array(array('nocache'=>"'true'"),$args)) {
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$this->tag_nocache = true;
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}
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// compile the smarty tag (required compile classes to compile the tag are autoloaded)
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if (($_output = $this->callTagCompiler($tag, $args, $parameter)) === false) {
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if (isset($this->smarty->template_functions[$tag])) {
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// template defined by {template} tag
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$args['_attr']['name'] = "'" . $tag . "'";
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$_output = $this->callTagCompiler('call', $args, $parameter);
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}
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}
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if ($_output !== false) {
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if ($_output !== true) {
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// did we get compiled code
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if ($this->has_code) {
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// Does it create output?
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if ($this->has_output) {
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$_output .= "\n";
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}
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// return compiled code
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return $_output;
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}
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}
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// tag did not produce compiled code
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return '';
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} else {
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// map_named attributes
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if (isset($args['_attr'])) {
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foreach ($args['_attr'] as $key => $attribute) {
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if (is_array($attribute)) {
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$args = array_merge($args, $attribute);
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}
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}
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}
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// not an internal compiler tag
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if (strlen($tag) < 6 || substr($tag, -5) != 'close') {
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// check if tag is a registered object
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if (isset($this->smarty->registered_objects[$tag]) && isset($parameter['object_methode'])) {
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$methode = $parameter['object_methode'];
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if (!in_array($methode, $this->smarty->registered_objects[$tag][3]) &&
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(empty($this->smarty->registered_objects[$tag][1]) || in_array($methode, $this->smarty->registered_objects[$tag][1]))) {
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return $this->callTagCompiler('private_object_function', $args, $parameter, $tag, $methode);
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} elseif (in_array($methode, $this->smarty->registered_objects[$tag][3])) {
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return $this->callTagCompiler('private_object_block_function', $args, $parameter, $tag, $methode);
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} else {
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return $this->trigger_template_error ('unallowed methode "' . $methode . '" in registered object "' . $tag . '"', $this->lex->taglineno);
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}
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}
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// check if tag is registered
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foreach (array(Smarty::PLUGIN_COMPILER, Smarty::PLUGIN_FUNCTION, Smarty::PLUGIN_BLOCK) as $plugin_type) {
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if (isset($this->smarty->registered_plugins[$plugin_type][$tag])) {
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// if compiler function plugin call it now
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if ($plugin_type == Smarty::PLUGIN_COMPILER) {
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$new_args = array();
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foreach ($args as $key => $mixed) {
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if (is_array($mixed)) {
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$new_args = array_merge($new_args, $mixed);
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} else {
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$new_args[$key] = $mixed;
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}
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}
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if (!$this->smarty->registered_plugins[$plugin_type][$tag][1]) {
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$this->tag_nocache = true;
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}
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$function = $this->smarty->registered_plugins[$plugin_type][$tag][0];
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if (!is_array($function)) {
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return $function($new_args, $this);
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} else if (is_object($function[0])) {
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return $this->smarty->registered_plugins[$plugin_type][$tag][0][0]->$function[1]($new_args, $this);
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} else {
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return call_user_func_array($function, array($new_args, $this));
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}
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}
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// compile registered function or block function
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if ($plugin_type == Smarty::PLUGIN_FUNCTION || $plugin_type == Smarty::PLUGIN_BLOCK) {
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return $this->callTagCompiler('private_registered_' . $plugin_type, $args, $parameter, $tag);
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}
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}
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}
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// check plugins from plugins folder
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foreach ($this->smarty->plugin_search_order as $plugin_type) {
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if ($plugin_type == Smarty::PLUGIN_BLOCK && $this->smarty->loadPlugin('smarty_compiler_' . $tag) && (!isset($this->smarty->security_policy) || $this->smarty->security_policy->isTrustedTag($tag, $this))) {
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$plugin = 'smarty_compiler_' . $tag;
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if (is_callable($plugin)) {
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// convert arguments format for old compiler plugins
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$new_args = array();
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foreach ($args as $key => $mixed) {
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if (is_array($mixed)) {
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$new_args = array_merge($new_args, $mixed);
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} else {
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$new_args[$key] = $mixed;
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}
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}
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return $plugin($new_args, $this->smarty);
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}
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if (class_exists($plugin, false)) {
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$plugin_object = new $plugin;
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if (method_exists($plugin_object, 'compile')) {
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return $plugin_object->compile($args, $this);
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}
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}
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throw new SmartyException("Plugin \"{$tag}\" not callable");
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} else {
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if ($function = $this->getPlugin($tag, $plugin_type)) {
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if(!isset($this->smarty->security_policy) || $this->smarty->security_policy->isTrustedTag($tag, $this)) {
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return $this->callTagCompiler('private_' . $plugin_type . '_plugin', $args, $parameter, $tag, $function);
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}
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}
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}
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}
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if (is_callable($this->smarty->default_plugin_handler_func)) {
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$found = false;
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// look for already resolved tags
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foreach ($this->smarty->plugin_search_order as $plugin_type) {
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if (isset($this->default_handler_plugins[$plugin_type][$tag])) {
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$found = true;
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break;
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}
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}
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if (!$found) {
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// call default handler
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foreach ($this->smarty->plugin_search_order as $plugin_type) {
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if ($this->getPluginFromDefaultHandler($tag, $plugin_type)) {
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$found = true;
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break;
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}
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}
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}
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if ($found) {
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// if compiler function plugin call it now
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if ($plugin_type == Smarty::PLUGIN_COMPILER) {
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$new_args = array();
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foreach ($args as $mixed) {
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$new_args = array_merge($new_args, $mixed);
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}
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$function = $this->default_handler_plugins[$plugin_type][$tag][0];
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if (!is_array($function)) {
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return $function($new_args, $this);
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} else if (is_object($function[0])) {
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return $this->default_handler_plugins[$plugin_type][$tag][0][0]->$function[1]($new_args, $this);
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} else {
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return call_user_func_array($function, array($new_args, $this));
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}
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} else {
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return $this->callTagCompiler('private_registered_' . $plugin_type, $args, $parameter, $tag);
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}
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}
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}
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} else {
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// compile closing tag of block function
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$base_tag = substr($tag, 0, -5);
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// check if closing tag is a registered object
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if (isset($this->smarty->registered_objects[$base_tag]) && isset($parameter['object_methode'])) {
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$methode = $parameter['object_methode'];
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if (in_array($methode, $this->smarty->registered_objects[$base_tag][3])) {
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return $this->callTagCompiler('private_object_block_function', $args, $parameter, $tag, $methode);
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} else {
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return $this->trigger_template_error ('unallowed closing tag methode "' . $methode . '" in registered object "' . $base_tag . '"', $this->lex->taglineno);
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}
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}
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// registered block tag ?
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if (isset($this->smarty->registered_plugins[Smarty::PLUGIN_BLOCK][$base_tag]) || isset($this->default_handler_plugins[Smarty::PLUGIN_BLOCK][$base_tag])) {
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return $this->callTagCompiler('private_registered_block', $args, $parameter, $tag);
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}
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// block plugin?
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if ($function = $this->getPlugin($base_tag, Smarty::PLUGIN_BLOCK)) {
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return $this->callTagCompiler('private_block_plugin', $args, $parameter, $tag, $function);
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}
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if ($this->smarty->loadPlugin('smarty_compiler_' . $tag)) {
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$plugin = 'smarty_compiler_' . $tag;
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if (is_callable($plugin)) {
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return $plugin($args, $this->smarty);
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}
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if (class_exists($plugin, false)) {
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$plugin_object = new $plugin;
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if (method_exists($plugin_object, 'compile')) {
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return $plugin_object->compile($args, $this);
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}
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}
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throw new SmartyException("Plugin \"{$tag}\" not callable");
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}
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}
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$this->trigger_template_error ("unknown tag \"" . $tag . "\"", $this->lex->taglineno);
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}
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}
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/**
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* lazy loads internal compile plugin for tag and calls the compile methode
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*
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* compile objects cached for reuse.
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* class name format: Smarty_Internal_Compile_TagName
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* plugin filename format: Smarty_Internal_Tagname.php
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*
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* @param string $tag tag name
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* @param array $args list of tag attributes
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* @param mixed $param1 optional parameter
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* @param mixed $param2 optional parameter
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* @param mixed $param3 optional parameter
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* @return string compiled code
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*/
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public function callTagCompiler($tag, $args, $param1 = null, $param2 = null, $param3 = null)
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{
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// re-use object if already exists
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if (isset(self::$_tag_objects[$tag])) {
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// compile this tag
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return self::$_tag_objects[$tag]->compile($args, $this, $param1, $param2, $param3);
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}
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// lazy load internal compiler plugin
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$class_name = 'Smarty_Internal_Compile_' . $tag;
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if ($this->smarty->loadPlugin($class_name)) {
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// check if tag allowed by security
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if (!isset($this->smarty->security_policy) || $this->smarty->security_policy->isTrustedTag($tag, $this)) {
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// use plugin if found
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self::$_tag_objects[$tag] = new $class_name;
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// compile this tag
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return self::$_tag_objects[$tag]->compile($args, $this, $param1, $param2, $param3);
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}
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}
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// no internal compile plugin for this tag
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return false;
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}
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/**
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* Check for plugins and return function name
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*
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* @param string $pugin_name name of plugin or function
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* @param string $plugin_type type of plugin
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* @return string call name of function
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*/
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public function getPlugin($plugin_name, $plugin_type)
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{
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$function = null;
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if ($this->template->caching && ($this->nocache || $this->tag_nocache)) {
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if (isset($this->template->required_plugins['nocache'][$plugin_name][$plugin_type])) {
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$function = $this->template->required_plugins['nocache'][$plugin_name][$plugin_type]['function'];
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} else if (isset($this->template->required_plugins['compiled'][$plugin_name][$plugin_type])) {
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$this->template->required_plugins['nocache'][$plugin_name][$plugin_type] = $this->template->required_plugins['compiled'][$plugin_name][$plugin_type];
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$function = $this->template->required_plugins['nocache'][$plugin_name][$plugin_type]['function'];
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}
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} else {
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if (isset($this->template->required_plugins['compiled'][$plugin_name][$plugin_type])) {
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$function = $this->template->required_plugins['compiled'][$plugin_name][$plugin_type]['function'];
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} else if (isset($this->template->required_plugins['nocache'][$plugin_name][$plugin_type])) {
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$this->template->required_plugins['compiled'][$plugin_name][$plugin_type] = $this->template->required_plugins['nocache'][$plugin_name][$plugin_type];
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$function = $this->template->required_plugins['compiled'][$plugin_name][$plugin_type]['function'];
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}
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}
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if (isset($function)) {
|
|
if ($plugin_type == 'modifier') {
|
|
$this->modifier_plugins[$plugin_name] = true;
|
|
}
|
|
return $function;
|
|
}
|
|
// loop through plugin dirs and find the plugin
|
|
$function = 'smarty_' . $plugin_type . '_' . $plugin_name;
|
|
$file = $this->smarty->loadPlugin($function, false);
|
|
|
|
if (is_string($file)) {
|
|
if ($this->template->caching && ($this->nocache || $this->tag_nocache)) {
|
|
$this->template->required_plugins['nocache'][$plugin_name][$plugin_type]['file'] = $file;
|
|
$this->template->required_plugins['nocache'][$plugin_name][$plugin_type]['function'] = $function;
|
|
} else {
|
|
$this->template->required_plugins['compiled'][$plugin_name][$plugin_type]['file'] = $file;
|
|
$this->template->required_plugins['compiled'][$plugin_name][$plugin_type]['function'] = $function;
|
|
}
|
|
if ($plugin_type == 'modifier') {
|
|
$this->modifier_plugins[$plugin_name] = true;
|
|
}
|
|
return $function;
|
|
}
|
|
if (is_callable($function)) {
|
|
// plugin function is defined in the script
|
|
return $function;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Check for plugins by default plugin handler
|
|
*
|
|
* @param string $tag name of tag
|
|
* @param string $plugin_type type of plugin
|
|
* @return boolean true if found
|
|
*/
|
|
public function getPluginFromDefaultHandler($tag, $plugin_type)
|
|
{
|
|
$callback = null;
|
|
$script = null;
|
|
$result = call_user_func_array(
|
|
$this->smarty->default_plugin_handler_func,
|
|
array($tag, $plugin_type, $this->template, &$callback, &$script)
|
|
);
|
|
if ($result) {
|
|
if ($script !== null) {
|
|
if (is_file($script)) {
|
|
if ($this->template->caching && ($this->nocache || $this->tag_nocache)) {
|
|
$this->template->required_plugins['nocache'][$tag][$plugin_type]['file'] = $script;
|
|
$this->template->required_plugins['nocache'][$tag][$plugin_type]['function'] = $callback;
|
|
} else {
|
|
$this->template->required_plugins['compiled'][$tag][$plugin_type]['file'] = $script;
|
|
$this->template->required_plugins['compiled'][$tag][$plugin_type]['function'] = $callback;
|
|
}
|
|
include_once $script;
|
|
} else {
|
|
$this->trigger_template_error("Default plugin handler: Returned script file \"{$script}\" for \"{$tag}\" not found");
|
|
}
|
|
}
|
|
if (!is_string($callback) && !(is_array($callback) && is_string($callback[0]) && is_string($callback[1]))) {
|
|
$this->trigger_template_error("Default plugin handler: Returned callback for \"{$tag}\" must be a static function name or array of class and function name");
|
|
}
|
|
if (is_callable($callback)) {
|
|
$this->default_handler_plugins[$plugin_type][$tag] = array($callback, true, array());
|
|
return true;
|
|
} else {
|
|
$this->trigger_template_error("Default plugin handler: Returned callback for \"{$tag}\" not callable");
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Inject inline code for nocache template sections
|
|
*
|
|
* This method gets the content of each template element from the parser.
|
|
* If the content is compiled code and it should be not cached the code is injected
|
|
* into the rendered output.
|
|
*
|
|
* @param string $content content of template element
|
|
* @param boolean $is_code true if content is compiled code
|
|
* @return string content
|
|
*/
|
|
public function processNocacheCode($content, $is_code)
|
|
{
|
|
// If the template is not evaluated and we have a nocache section and or a nocache tag
|
|
if ($is_code && !empty($content)) {
|
|
// generate replacement code
|
|
if ((!($this->template->source->recompiled) || $this->forceNocache) && $this->template->caching && !$this->suppressNocacheProcessing &&
|
|
($this->nocache || $this->tag_nocache || $this->forceNocache == 2)) {
|
|
$this->template->has_nocache_code = true;
|
|
$_output = str_replace("'", "\'", $content);
|
|
$_output = str_replace('\\\\', '\\\\\\', $_output);
|
|
$_output = str_replace("^#^", "'", $_output);
|
|
$_output = "<?php echo '/*%%SmartyNocache:{$this->nocache_hash}%%*/" . $_output . "/*/%%SmartyNocache:{$this->nocache_hash}%%*/';?>\n";
|
|
// make sure we include modifer plugins for nocache code
|
|
foreach ($this->modifier_plugins as $plugin_name => $dummy) {
|
|
if (isset($this->template->required_plugins['compiled'][$plugin_name]['modifier'])) {
|
|
$this->template->required_plugins['nocache'][$plugin_name]['modifier'] = $this->template->required_plugins['compiled'][$plugin_name]['modifier'];
|
|
}
|
|
}
|
|
} else {
|
|
$_output = $content;
|
|
}
|
|
} else {
|
|
$_output = $content;
|
|
}
|
|
$this->modifier_plugins = array();
|
|
$this->suppressNocacheProcessing = false;
|
|
$this->tag_nocache = false;
|
|
return $_output;
|
|
}
|
|
|
|
/**
|
|
* display compiler error messages without dying
|
|
*
|
|
* If parameter $args is empty it is a parser detected syntax error.
|
|
* In this case the parser is called to obtain information about expected tokens.
|
|
*
|
|
* If parameter $args contains a string this is used as error message
|
|
*
|
|
* @param string $args individual error message or null
|
|
* @param string $line line-number
|
|
* @throws SmartyCompilerException when an unexpected token is found
|
|
*/
|
|
public function trigger_template_error($args = null, $line = null)
|
|
{
|
|
// get template source line which has error
|
|
if (!isset($line)) {
|
|
$line = $this->lex->line;
|
|
}
|
|
$match = preg_split("/\n/", $this->lex->data);
|
|
$error_text = 'Syntax Error in template "' . $this->template->source->filepath . '" on line ' . $line . ' "' . htmlspecialchars(trim(preg_replace('![\t\r\n]+!',' ',$match[$line-1]))) . '" ';
|
|
if (isset($args)) {
|
|
// individual error message
|
|
$error_text .= $args;
|
|
} else {
|
|
// expected token from parser
|
|
$error_text .= ' - Unexpected "' . $this->lex->value.'"';
|
|
if (count($this->parser->yy_get_expected_tokens($this->parser->yymajor)) <= 4 ) {
|
|
foreach ($this->parser->yy_get_expected_tokens($this->parser->yymajor) as $token) {
|
|
$exp_token = $this->parser->yyTokenName[$token];
|
|
if (isset($this->lex->smarty_token_names[$exp_token])) {
|
|
// token type from lexer
|
|
$expect[] = '"' . $this->lex->smarty_token_names[$exp_token] . '"';
|
|
} else {
|
|
// otherwise internal token name
|
|
$expect[] = $this->parser->yyTokenName[$token];
|
|
}
|
|
}
|
|
$error_text .= ', expected one of: ' . implode(' , ', $expect);
|
|
}
|
|
}
|
|
throw new SmartyCompilerException($error_text);
|
|
}
|
|
|
|
}
|
|
|
|
?>
|