bfw: comparison library/smarty/libs/sysplugins/smarty_internal

equal deleted inserted replaced

--1:000000000000
+:4869aea77e21
+<?php
+/**
+* Smarty Internal Plugin Smarty Template Compiler Base
+* This file contains the basic classes and methods for compiling Smarty templates with lexer/parser
+*
+* @package    Smarty
+* @subpackage Compiler
+* @author     Uwe Tews
+*/
+/**
+* Main abstract compiler class
+*
+* @package    Smarty
+* @subpackage Compiler
+*/
+abstract class Smarty_Internal_TemplateCompilerBase {
+/**
+* Smarty object
+*
+* @var Smarty
+*/
+public $smarty = null;
+/**
+* hash for nocache sections
+*
+* @var mixed
+*/
+public $nocache_hash = null;
+/**
+* suppress generation of nocache code
+*
+* @var bool
+*/
+public $suppressNocacheProcessing = false;
+/**
+* compile tag objects
+*
+* @var array
+*/
+public static $_tag_objects = array();
+/**
+* tag stack
+*
+* @var array
+*/
+public $_tag_stack = array();
+/**
+* current template
+*
+* @var Smarty_Internal_Template
+*/
+public $template = null;
+/**
+* merged included sub template data
+*
+* @var array
+*/
+public $mergedSubTemplatesData = array();
+/**
+* merged sub template code
+*
+* @var array
+*/
+public $mergedSubTemplatesCode = array();
+/**
+* collected template properties during compilation
+*
+* @var array
+*/
+public $templateProperties = array();
+/**
+* sources which must be compiled
+*
+* @var array
+*/
+public $sources = array();
+/**
+* flag that we are inside {block}
+*
+* @var bool
+*/
+public $inheritance = false;
+/**
+* flag when compiling inheritance child template
+*
+* @var bool
+*/
+public $inheritance_child = false;
+/**
+* uid of templates called by {extends} for recursion check
+*
+* @var array
+*/
+public $extends_uid = array();
+/**
+* source line offset for error messages
+*
+* @var int
+*/
+public $trace_line_offset = 0;
+/**
+* trace uid
+*
+* @var string
+*/
+public $trace_uid = '';
+/**
+* trace file path
+*
+* @var string
+*/
+public $trace_filepath = '';
+/**
+* stack for tracing file and line of nested {block} tags
+*
+* @var array
+*/
+public $trace_stack = array();
+/**
+* plugins loaded by default plugin handler
+*
+* @var array
+*/
+public $default_handler_plugins = array();
+/**
+* saved preprocessed modifier list
+*
+* @var mixed
+*/
+public $default_modifier_list = null;
+/**
+* force compilation of complete template as nocache
+*
+* @var boolean
+*/
+public $forceNocache = false;
+/**
+* suppress Smarty header code in compiled template
+*
+* @var bool
+*/
+public $suppressHeader = false;
+/**
+* suppress template property header code in compiled template
+*
+* @var bool
+*/
+public $suppressTemplatePropertyHeader = false;
+/**
+* suppress pre and post filter
+*
+* @var bool
+*/
+public $suppressFilter = false;
+/**
+* flag if compiled template file shall we written
+*
+* @var bool
+*/
+public $write_compiled_code = true;
+/**
+* flag if currently a template function is compiled
+*
+* @var bool
+*/
+public $compiles_template_function = false;
+/**
+* called sub functions from template function
+*
+* @var array
+*/
+public $called_functions = array();
+/**
+* compiled template function code
+*
+* @var string
+*/
+public $templateFunctionCode = '';
+/**
+* php_handling setting either from Smarty or security
+*
+* @var int
+*/
+public $php_handling = 0;
+/**
+* flags for used modifier plugins
+*
+* @var array
+*/
+public $modifier_plugins = array();
+/**
+* type of already compiled modifier
+*
+* @var array
+*/
+public $known_modifier_type = array();
+/**
+* parent compiler object for merged subtemplates and template functions
+*
+* @var Smarty_Internal_TemplateCompilerBase
+*/
+public $parent_compiler = null;
+/**
+* Flag true when compiling nocache section
+*
+* @var bool
+*/
+public $nocache = false;
+/**
+* Flag true when tag is compiled as nocache
+*
+* @var bool
+*/
+public $tag_nocache = false;
+/**
+* Flag to restart parsing
+*
+* @var bool
+*/
+public $abort_and_recompile = false;
+/**
+* Compiled tag prefix code
+*
+* @var array
+*/
+public $prefix_code = array();
+/**
+* Prefix code  stack
+*
+* @var array
+*/
+public $prefixCodeStack = array();
+/**
+* Tag has compiled code
+*
+* @var bool
+*/
+public $has_code = false;
+/**
+* A variable string was compiled
+*
+* @var bool
+*/
+public $has_variable_string = false;
+/**
+* Tag creates output
+*
+* @var bool
+*/
+public $has_output = false;
+/**
+* Strip preg pattern
+*
+* @var string
+*/
+public $stripRegEx = '![\t ]*[\r\n]+[\t ]*!';
+/**
+* method to compile a Smarty template
+*
+* @param  mixed $_content template source
+*
+* @return bool  true if compiling succeeded, false if it failed
+*/
+abstract protected function doCompile($_content);
+/**
+* Initialize compiler
+*/
+public function __construct() {
+$this->nocache_hash = str_replace(array('.', ','), '_', uniqid(rand(), true));
+}
+/**
+* Method to compile a Smarty template
+*
+* @param  Smarty_Internal_Template $template template object to compile
+* @param  bool $nocache true is shall be compiled in nocache mode
+* @param null|Smarty_Internal_TemplateCompilerBase $parent_compiler
+*
+* @return bool true if compiling succeeded, false if it failed
+*/
+public function compileTemplate(Smarty_Internal_Template $template, $nocache = null, $parent_compiler = null) {
+// save template object in compiler class
+$this->template = $template;
+if (isset($this->template->smarty->security_policy)) {
+$this->php_handling = $this->template->smarty->security_policy->php_handling;
+} else {
+$this->php_handling = $this->template->smarty->php_handling;
+}
+$this->parent_compiler = $parent_compiler ? $parent_compiler : $this;
+$nocache = isset($nocache) ? $nocache : false;
+if (empty($template->properties['nocache_hash'])) {
+$template->properties['nocache_hash'] = $this->nocache_hash;
+} else {
+$this->nocache_hash = $template->properties['nocache_hash'];
+}
+$save_source = $this->template->source;
+// template header code
+$template_header = '';
+if (!$this->suppressHeader) {
+$template_header .= "<?php /* Smarty version " . Smarty::SMARTY_VERSION . ", created on " . strftime("%Y-%m-%d %H:%M:%S") . "\n";
+$template_header .= "         compiled from \"" . $this->template->source->filepath . "\" */ ?>\n";
+}
+if (empty($this->template->source->components)) {
+$this->sources = array($template->source);
+} else {
+// we have array of inheritance templates by extends: resource
+$this->sources = array_reverse($template->source->components);
+}
+$loop = 0;
+// the $this->sources array can get additional elements while compiling by the {extends} tag
+while ($this->template->source = array_shift($this->sources)) {
+$this->smarty->_current_file = $this->template->source->filepath;
+if ($this->smarty->debugging) {
+Smarty_Internal_Debug::start_compile($this->template);
+}
+$no_sources = count($this->sources);
+$this->parent_compiler->template->properties['file_dependency'][$this->template->source->uid] = array($this->template->source->filepath, $this->template->source->timestamp, $this->template->source->type);
+$loop++;
+if ($no_sources) {
+$this->inheritance_child = true;
+} else {
+$this->inheritance_child = false;
+}
+do {
+// flag for nochache sections
+$this->nocache = $nocache;
+$this->tag_nocache = false;
+// reset has nocache code flag
+$this->template->has_nocache_code = false;
+$this->has_variable_string = false;
+$this->prefix_code = array();
+$_compiled_code = '';
+// flag for aborting current and start recompile
+$this->abort_and_recompile = false;
+// get template source
+$_content = $this->template->source->content;
+if ($_content != '') {
+// run prefilter if required
+if ((isset($this->smarty->autoload_filters['pre']) || isset($this->smarty->registered_filters['pre'])) && !$this->suppressFilter) {
+$_content = Smarty_Internal_Filter_Handler::runFilter('pre', $_content, $template);
+}
+// call compiler
+$_compiled_code = $this->doCompile($_content, true);
+}
+} while ($this->abort_and_recompile);
+if ($this->smarty->debugging) {
+Smarty_Internal_Debug::end_compile($this->template);
+}
+}
+// restore source
+$this->template->source = $save_source;
+unset($save_source);
+$this->smarty->_current_file = $this->template->source->filepath;
+// free memory
+unset($this->parser->root_buffer, $this->parser->current_buffer, $this->parser, $this->lex);
+self::$_tag_objects = array();
+// return compiled code to template object
+$merged_code = '';
+if (!empty($this->mergedSubTemplatesCode)) {
+foreach ($this->mergedSubTemplatesCode as $code) {
+$merged_code .= $code;
+}
+}
+// run postfilter if required on compiled template code
+if ((isset($this->smarty->autoload_filters['post']) || isset($this->smarty->registered_filters['post'])) && !$this->suppressFilter && $_compiled_code != '') {
+$_compiled_code = Smarty_Internal_Filter_Handler::runFilter('post', $_compiled_code, $template);
+}
+if ($this->suppressTemplatePropertyHeader) {
+$_compiled_code .= $merged_code;
+} else {
+$_compiled_code = $template_header . Smarty_Internal_Extension_CodeFrame::create($template, $_compiled_code) . $merged_code;
+}
+if (!empty($this->templateFunctionCode)) {
+// run postfilter if required on compiled template code
+if ((isset($this->smarty->autoload_filters['post']) || isset($this->smarty->registered_filters['post'])) && !$this->suppressFilter) {
+$_compiled_code .= Smarty_Internal_Filter_Handler::runFilter('post', $this->templateFunctionCode, $template);
+} else {
+$_compiled_code .= $this->templateFunctionCode;
+}
+}
+// unset content because template inheritance could have replace source with parent code
+unset ($template->source->content);
+$this->parent_compiler = null;
+$this->template = null;
+return $_compiled_code;
+}
+/**
+* Compile Tag
+* This is a call back from the lexer/parser
+*
+* Save current prefix code
+* Compile tag
+* Merge tag prefix code with saved one
+* (required nested tags in attributes)
+*
+* @param  string $tag tag name
+* @param  array $args array with tag attributes
+* @param  array $parameter array with compilation parameter
+*
+* @throws SmartyCompilerException
+* @throws SmartyException
+* @return string compiled code
+*/
+public function compileTag($tag, $args, $parameter = array()) {
+$this->prefixCodeStack[] = $this->prefix_code;
+$this->prefix_code = array();
+$result = $this->compileTag2($tag, $args, $parameter);
+$this->prefix_code = array_merge($this->prefix_code, array_pop($this->prefixCodeStack));
+return $result;
+}
+/**
+* Compile Tag
+*
+* @param  string $tag tag name
+* @param  array $args array with tag attributes
+* @param  array $parameter array with compilation parameter
+*
+* @throws SmartyCompilerException
+* @throws SmartyException
+* @return string compiled code
+*/
+private function compileTag2($tag, $args, $parameter) {
+$plugin_type = '';
+// $args contains the attributes parsed and compiled by the lexer/parser
+// assume that tag does compile into code, but creates no HTML output
+$this->has_code = true;
+$this->has_output = false;
+// log tag/attributes
+if (isset($this->smarty->get_used_tags) && $this->smarty->get_used_tags) {
+$this->template->used_tags[] = array($tag, $args);
+}
+// check nocache option flag
+if (in_array("'nocache'", $args) || in_array(array('nocache' => 'true'), $args) || in_array(array('nocache' => '"true"'), $args) || in_array(array('nocache' => "'true'"), $args)
+) {
+$this->tag_nocache = true;
+}
+// compile the smarty tag (required compile classes to compile the tag are autoloaded)
+if (($_output = $this->callTagCompiler($tag, $args, $parameter)) === false) {
+if (isset($this->parent_compiler->templateProperties['tpl_function'][$tag])) {
+// template defined by {template} tag
+$args['_attr']['name'] = "'" . $tag . "'";
+$_output = $this->callTagCompiler('call', $args, $parameter);
+}
+}
+if ($_output !== false) {
+if ($_output !== true) {
+// did we get compiled code
+if ($this->has_code) {
+// Does it create output?
+if ($this->has_output) {
+$_output .= "\n";
+}
+// return compiled code
+return $_output;
+}
+}
+// tag did not produce compiled code
+return null;
+} else {
+// map_named attributes
+if (isset($args['_attr'])) {
+foreach ($args['_attr'] as $key => $attribute) {
+if (is_array($attribute)) {
+$args = array_merge($args, $attribute);
+}
+}
+}
+// not an internal compiler tag
+if (strlen($tag) < 6 || substr($tag, -5) != 'close') {
+// check if tag is a registered object
+if (isset($this->smarty->registered_objects[$tag]) && isset($parameter['object_method'])) {
+$method = $parameter['object_method'];
+if (!in_array($method, $this->smarty->registered_objects[$tag][3]) && (empty($this->smarty->registered_objects[$tag][1]) || in_array($method, $this->smarty->registered_objects[$tag][1]))
+) {
+return $this->callTagCompiler('private_object_function', $args, $parameter, $tag, $method);
+} elseif (in_array($method, $this->smarty->registered_objects[$tag][3])) {
+return $this->callTagCompiler('private_object_block_function', $args, $parameter, $tag, $method);
+} else {
+// throw exception
+$this->trigger_template_error('not allowed method "' . $method . '" in registered object "' . $tag . '"', $this->lex->taglineno);
+}
+}
+// check if tag is registered
+foreach (array(Smarty::PLUGIN_COMPILER, Smarty::PLUGIN_FUNCTION, Smarty::PLUGIN_BLOCK) as $plugin_type) {
+if (isset($this->smarty->registered_plugins[$plugin_type][$tag])) {
+// if compiler function plugin call it now
+if ($plugin_type == Smarty::PLUGIN_COMPILER) {
+$new_args = array();
+foreach ($args as $key => $mixed) {
+if (is_array($mixed)) {
+$new_args = array_merge($new_args, $mixed);
+} else {
+$new_args[$key] = $mixed;
+}
+}
+if (!$this->smarty->registered_plugins[$plugin_type][$tag][1]) {
+$this->tag_nocache = true;
+}
+$function = $this->smarty->registered_plugins[$plugin_type][$tag][0];
+if (!is_array($function)) {
+return $function($new_args, $this);
+} elseif (is_object($function[0])) {
+return $this->smarty->registered_plugins[$plugin_type][$tag][0][0]->$function[1]($new_args, $this);
+} else {
+return call_user_func_array($function, array($new_args, $this));
+}
+}
+// compile registered function or block function
+if ($plugin_type == Smarty::PLUGIN_FUNCTION || $plugin_type == Smarty::PLUGIN_BLOCK) {
+return $this->callTagCompiler('private_registered_' . $plugin_type, $args, $parameter, $tag);
+}
+}
+}
+// check plugins from plugins folder
+foreach ($this->smarty->plugin_search_order as $plugin_type) {
+if ($plugin_type == Smarty::PLUGIN_COMPILER && $this->smarty->loadPlugin('smarty_compiler_' . $tag) && (!isset($this->smarty->security_policy) || $this->smarty->security_policy->isTrustedTag($tag, $this))) {
+$plugin = 'smarty_compiler_' . $tag;
+if (is_callable($plugin)) {
+// convert arguments format for old compiler plugins
+$new_args = array();
+foreach ($args as $key => $mixed) {
+if (is_array($mixed)) {
+$new_args = array_merge($new_args, $mixed);
+} else {
+$new_args[$key] = $mixed;
+}
+}
+return $plugin($new_args, $this->smarty);
+}
+if (class_exists($plugin, false)) {
+$plugin_object = new $plugin;
+if (method_exists($plugin_object, 'compile')) {
+return $plugin_object->compile($args, $this);
+}
+}
+throw new SmartyException("Plugin \"{$tag}\" not callable");
+} else {
+if ($function = $this->getPlugin($tag, $plugin_type)) {
+if (!isset($this->smarty->security_policy) || $this->smarty->security_policy->isTrustedTag($tag, $this)) {
+return $this->callTagCompiler('private_' . $plugin_type . '_plugin', $args, $parameter, $tag, $function);
+}
+}
+}
+}
+if (is_callable($this->smarty->default_plugin_handler_func)) {
+$found = false;
+// look for already resolved tags
+foreach ($this->smarty->plugin_search_order as $plugin_type) {
+if (isset($this->default_handler_plugins[$plugin_type][$tag])) {
+$found = true;
+break;
+}
+}
+if (!$found) {
+// call default handler
+foreach ($this->smarty->plugin_search_order as $plugin_type) {
+if ($this->getPluginFromDefaultHandler($tag, $plugin_type)) {
+$found = true;
+break;
+}
+}
+}
+if ($found) {
+// if compiler function plugin call it now
+if ($plugin_type == Smarty::PLUGIN_COMPILER) {
+$new_args = array();
+foreach ($args as $mixed) {
+$new_args = array_merge($new_args, $mixed);
+}
+$function = $this->default_handler_plugins[$plugin_type][$tag][0];
+if (!is_array($function)) {
+return $function($new_args, $this);
+} elseif (is_object($function[0])) {
+return $this->default_handler_plugins[$plugin_type][$tag][0][0]->$function[1]($new_args, $this);
+} else {
+return call_user_func_array($function, array($new_args, $this));
+}
+} else {
+return $this->callTagCompiler('private_registered_' . $plugin_type, $args, $parameter, $tag);
+}
+}
+}
+} else {
+// compile closing tag of block function
+$base_tag = substr($tag, 0, -5);
+// check if closing tag is a registered object
+if (isset($this->smarty->registered_objects[$base_tag]) && isset($parameter['object_method'])) {
+$method = $parameter['object_method'];
+if (in_array($method, $this->smarty->registered_objects[$base_tag][3])) {
+return $this->callTagCompiler('private_object_block_function', $args, $parameter, $tag, $method);
+} else {
+// throw exception
+$this->trigger_template_error('not allowed closing tag method "' . $method . '" in registered object "' . $base_tag . '"', $this->lex->taglineno);
+}
+}
+// registered block tag ?
+if (isset($this->smarty->registered_plugins[Smarty::PLUGIN_BLOCK][$base_tag]) || isset($this->default_handler_plugins[Smarty::PLUGIN_BLOCK][$base_tag])) {
+return $this->callTagCompiler('private_registered_block', $args, $parameter, $tag);
+}
+// block plugin?
+if ($function = $this->getPlugin($base_tag, Smarty::PLUGIN_BLOCK)) {
+return $this->callTagCompiler('private_block_plugin', $args, $parameter, $tag, $function);
+}
+// registered compiler plugin ?
+if (isset($this->smarty->registered_plugins[Smarty::PLUGIN_COMPILER][$tag])) {
+// if compiler function plugin call it now
+$args = array();
+if (!$this->smarty->registered_plugins[Smarty::PLUGIN_COMPILER][$tag][1]) {
+$this->tag_nocache = true;
+}
+$function = $this->smarty->registered_plugins[Smarty::PLUGIN_COMPILER][$tag][0];
+if (!is_array($function)) {
+return $function($args, $this);
+} elseif (is_object($function[0])) {
+return $this->smarty->registered_plugins[Smarty::PLUGIN_COMPILER][$tag][0][0]->$function[1]($args, $this);
+} else {
+return call_user_func_array($function, array($args, $this));
+}
+}
+if ($this->smarty->loadPlugin('smarty_compiler_' . $tag)) {
+$plugin = 'smarty_compiler_' . $tag;
+if (is_callable($plugin)) {
+return $plugin($args, $this->smarty);
+}
+if (class_exists($plugin, false)) {
+$plugin_object = new $plugin;
+if (method_exists($plugin_object, 'compile')) {
+return $plugin_object->compile($args, $this);
+}
+}
+throw new SmartyException("Plugin \"{$tag}\" not callable");
+}
+}
+$this->trigger_template_error("unknown tag \"" . $tag . "\"", $this->lex->taglineno);
+}
+}
+/**
+* compile variable
+*
+* @param string $variable
+*
+* @return string
+*/
+public function compileVariable($variable) {
+if (strpos($variable, '(') == 0) {
+// not a variable variable
+$var = trim($variable, '\'');
+$this->tag_nocache = $this->tag_nocache | $this->template->getVariable($var, null, true, false)->nocache;
+$this->template->properties['variables'][$var] = $this->tag_nocache | $this->nocache;
+}
+return '$_smarty_tpl->tpl_vars[' . $variable . ']->value';
+}
+/**
+* This method is called from parser to process a text content section
+* - remove text from inheritance child templates as they may generate output
+* - strip text if strip is enabled
+*
+* @param string $text
+*
+* @return null|\Smarty_Internal_ParseTree_Text
+*/
+public function processText($text) {
+if ($this->parser->strip) {
+return new Smarty_Internal_ParseTree_Text($this->parser, preg_replace($this->stripRegEx, '', $text));
+} else {
+return new Smarty_Internal_ParseTree_Text($this->parser, $text);
+}
+}
+/**
+* lazy loads internal compile plugin for tag and calls the compile method
+* compile objects cached for reuse.
+* class name format:  Smarty_Internal_Compile_TagName
+* plugin filename format: Smarty_Internal_Tagname.php
+*
+* @param  string $tag tag name
+* @param  array $args list of tag attributes
+* @param  mixed $param1 optional parameter
+* @param  mixed $param2 optional parameter
+* @param  mixed $param3 optional parameter
+*
+* @return string compiled code
+*/
+public function callTagCompiler($tag, $args, $param1 = null, $param2 = null, $param3 = null) {
+// check if tag allowed by security
+if (!isset($this->smarty->security_policy) || $this->smarty->security_policy->isTrustedTag($tag, $this)) {
+// re-use object if already exists
+if (!isset(self::$_tag_objects[$tag])) {
+// lazy load internal compiler plugin
+$class_name = 'Smarty_Internal_Compile_' . $tag;
+if ($this->smarty->loadPlugin($class_name)) {
+self::$_tag_objects[$tag] = new $class_name;
+} else {
+return false;
+}
+}
+// compile this tag
+return self::$_tag_objects[$tag]->compile($args, $this, $param1, $param2, $param3);
+}
+// no internal compile plugin for this tag
+return false;
+}
+/**
+* Check for plugins and return function name
+*
+* @param         $plugin_name
+* @param  string $plugin_type type of plugin
+*
+* @return string call name of function
+*/
+public function getPlugin($plugin_name, $plugin_type) {
+$function = null;
+if ($this->template->caching && ($this->nocache || $this->tag_nocache)) {
+if (isset($this->template->required_plugins['nocache'][$plugin_name][$plugin_type])) {
+$function = $this->template->required_plugins['nocache'][$plugin_name][$plugin_type]['function'];
+} elseif (isset($this->template->required_plugins['compiled'][$plugin_name][$plugin_type])) {
+$this->template->required_plugins['nocache'][$plugin_name][$plugin_type] = $this->template->required_plugins['compiled'][$plugin_name][$plugin_type];
+$function = $this->template->required_plugins['nocache'][$plugin_name][$plugin_type]['function'];
+}
+} else {
+if (isset($this->template->required_plugins['compiled'][$plugin_name][$plugin_type])) {
+$function = $this->template->required_plugins['compiled'][$plugin_name][$plugin_type]['function'];
+} elseif (isset($this->template->required_plugins['nocache'][$plugin_name][$plugin_type])) {
+$this->template->required_plugins['compiled'][$plugin_name][$plugin_type] = $this->template->required_plugins['nocache'][$plugin_name][$plugin_type];
+$function = $this->template->required_plugins['compiled'][$plugin_name][$plugin_type]['function'];
+}
+}
+if (isset($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;
+$script = null;
+$cacheable = true;
+$result = call_user_func_array($this->smarty->default_plugin_handler_func, array($tag, $plugin_type, $this->template, &$callback, &$script, &$cacheable));
+if ($result) {
+$this->tag_nocache = $this->tag_nocache || !$cacheable;
+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;
+}
+require_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;
+}
+/**
+* Append code segments and remove unneeded ?> <?php transitions
+*
+* @param string $left
+* @param string $right
+*
+* @return string
+*/
+public function appendCode($left, $right) {
+if (preg_match('/\s*\?>\s*$/', $left) && preg_match('/^\s*<\?php\s+/', $right)) {
+$left = preg_replace('/\s*\?>\s*$/', "\n", $left);
+$left .= preg_replace('/^\s*<\?php\s+/', '', $right);
+} else {
+$left .= $right;
+}
+return $left;
+}
+/**
+* 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->template->has_nocache_code = true;
+$_output = addcslashes($content, '\'\\');
+$_output = str_replace("^#^", "'", $_output);
+$_output = "<?php echo '/*%%SmartyNocache:{$this->nocache_hash}%%*/" . $_output . "/*/%%SmartyNocache:{$this->nocache_hash}%%*/';?>\n";
+// make sure we include modifier 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;
+}
+/**
+* Generate nocache code string
+*
+* @param string $code PHP code
+*
+* @return string
+*/
+public function makeNocacheCode($code) {
+return "echo '/*%%SmartyNocache:{$this->nocache_hash}%%*/<?php " . str_replace("^#^", "'", addcslashes($code, '\'\\')) . "?>/*/%%SmartyNocache:{$this->nocache_hash}%%*/';\n";
+}
+/**
+*  push current file and line offset on stack for tracing {block} source lines
+*
+* @param string $file new filename
+* @param string $uid uid of file
+* @param int $line line offset to source
+* @param bool $debug false debug end_compile shall not be called
+*/
+public function pushTrace($file, $uid, $line, $debug = true) {
+if ($this->smarty->debugging && $debug) {
+Smarty_Internal_Debug::end_compile($this->template);
+}
+array_push($this->trace_stack, array($this->smarty->_current_file, $this->trace_filepath, $this->trace_uid, $this->trace_line_offset));
+$this->trace_filepath = $this->smarty->_current_file = $file;
+$this->trace_uid = $uid;
+$this->trace_line_offset = $line;
+if ($this->smarty->debugging) {
+Smarty_Internal_Debug::start_compile($this->template);
+}
+}
+/**
+*  restore file and line offset
+*/
+public function popTrace() {
+if ($this->smarty->debugging) {
+Smarty_Internal_Debug::end_compile($this->template);
+}
+$r = array_pop($this->trace_stack);
+$this->smarty->_current_file = $r[0];
+$this->trace_filepath = $r[1];
+$this->trace_uid = $r[2];
+$this->trace_line_offset = $r[3];
+if ($this->smarty->debugging) {
+Smarty_Internal_Debug::start_compile($this->template);
+}
+}
+/**
+* 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;
+}
+//        $line += $this->trace_line_offset;
+$match = preg_split("/\n/", $this->lex->data);
+$error_text = 'Syntax error in template "' . (empty($this->trace_filepath) ? $this->template->source->filepath : $this->trace_filepath) . '"  on line ' . ($line + $this->trace_line_offset) . ' "' . trim(preg_replace('![\t\r\n]+!', ' ', $match[$line - 1])) . '" ';
+if (isset($args)) {
+// individual error message
+$error_text .= $args;
+} else {
+$expect = array();
+// 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(' , ', $expect);
+}
+}
+$e = new SmartyCompilerException($error_text);
+$e->line = $line;
+$e->source = trim(preg_replace('![\t\r\n]+!', ' ', $match[$line - 1]));
+$e->desc = $args;
+$e->template = $this->template->source->filepath;
+throw $e;
+}
+}