smarty/Smarty_Compiler.class.php
changeset 0 c63de9eb7045
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/smarty/Smarty_Compiler.class.php	Sun Mar 23 14:59:33 2008 -0400
@@ -0,0 +1,2325 @@
+<?php
+
+/**
+ * Project:     Smarty: the PHP compiling template engine
+ * File:        Smarty_Compiler.class.php
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ * @link http://smarty.php.net/
+ * @author Monte Ohrt <monte at ohrt dot com>
+ * @author Andrei Zmievski <andrei@php.net>
+ * @version 2.6.19
+ * @copyright 2001-2005 New Digital Group, Inc.
+ * @package Smarty
+ */
+
+/* $Id: Smarty_Compiler.class.php 2736 2007-09-16 14:47:53Z mohrt $ */
+
+/**
+ * Template compiling class
+ * @package Smarty
+ */
+class Smarty_Compiler extends Smarty {
+
+    // internal vars
+    /**#@+
+     * @access private
+     */
+    var $_folded_blocks         =   array();    // keeps folded template blocks
+    var $_current_file          =   null;       // the current template being compiled
+    var $_current_line_no       =   1;          // line number for error messages
+    var $_capture_stack         =   array();    // keeps track of nested capture buffers
+    var $_plugin_info           =   array();    // keeps track of plugins to load
+    var $_init_smarty_vars      =   false;
+    var $_permitted_tokens      =   array('true','false','yes','no','on','off','null');
+    var $_db_qstr_regexp        =   null;        // regexps are setup in the constructor
+    var $_si_qstr_regexp        =   null;
+    var $_qstr_regexp           =   null;
+    var $_func_regexp           =   null;
+    var $_reg_obj_regexp        =   null;
+    var $_var_bracket_regexp    =   null;
+    var $_num_const_regexp      =   null;
+    var $_dvar_guts_regexp      =   null;
+    var $_dvar_regexp           =   null;
+    var $_cvar_regexp           =   null;
+    var $_svar_regexp           =   null;
+    var $_avar_regexp           =   null;
+    var $_mod_regexp            =   null;
+    var $_var_regexp            =   null;
+    var $_parenth_param_regexp  =   null;
+    var $_func_call_regexp      =   null;
+    var $_obj_ext_regexp        =   null;
+    var $_obj_start_regexp      =   null;
+    var $_obj_params_regexp     =   null;
+    var $_obj_call_regexp       =   null;
+    var $_cacheable_state       =   0;
+    var $_cache_attrs_count     =   0;
+    var $_nocache_count         =   0;
+    var $_cache_serial          =   null;
+    var $_cache_include         =   null;
+
+    var $_strip_depth           =   0;
+    var $_additional_newline    =   "\n";
+
+    /**#@-*/
+    /**
+     * The class constructor.
+     */
+    function Smarty_Compiler()
+    {
+        // matches double quoted strings:
+        // "foobar"
+        // "foo\"bar"
+        $this->_db_qstr_regexp = '"[^"\\\\]*(?:\\\\.[^"\\\\]*)*"';
+
+        // matches single quoted strings:
+        // 'foobar'
+        // 'foo\'bar'
+        $this->_si_qstr_regexp = '\'[^\'\\\\]*(?:\\\\.[^\'\\\\]*)*\'';
+
+        // matches single or double quoted strings
+        $this->_qstr_regexp = '(?:' . $this->_db_qstr_regexp . '|' . $this->_si_qstr_regexp . ')';
+
+        // matches bracket portion of vars
+        // [0]
+        // [foo]
+        // [$bar]
+        $this->_var_bracket_regexp = '\[\$?[\w\.]+\]';
+
+        // matches numerical constants
+        // 30
+        // -12
+        // 13.22
+        $this->_num_const_regexp = '(?:\-?\d+(?:\.\d+)?)';
+
+        // matches $ vars (not objects):
+        // $foo
+        // $foo.bar
+        // $foo.bar.foobar
+        // $foo[0]
+        // $foo[$bar]
+        // $foo[5][blah]
+        // $foo[5].bar[$foobar][4]
+        $this->_dvar_math_regexp = '(?:[\+\*\/\%]|(?:-(?!>)))';
+        $this->_dvar_math_var_regexp = '[\$\w\.\+\-\*\/\%\d\>\[\]]';
+        $this->_dvar_guts_regexp = '\w+(?:' . $this->_var_bracket_regexp
+                . ')*(?:\.\$?\w+(?:' . $this->_var_bracket_regexp . ')*)*(?:' . $this->_dvar_math_regexp . '(?:' . $this->_num_const_regexp . '|' . $this->_dvar_math_var_regexp . ')*)?';
+        $this->_dvar_regexp = '\$' . $this->_dvar_guts_regexp;
+
+        // matches config vars:
+        // #foo#
+        // #foobar123_foo#
+        $this->_cvar_regexp = '\#\w+\#';
+
+        // matches section vars:
+        // %foo.bar%
+        $this->_svar_regexp = '\%\w+\.\w+\%';
+
+        // matches all valid variables (no quotes, no modifiers)
+        $this->_avar_regexp = '(?:' . $this->_dvar_regexp . '|'
+           . $this->_cvar_regexp . '|' . $this->_svar_regexp . ')';
+
+        // matches valid variable syntax:
+        // $foo
+        // $foo
+        // #foo#
+        // #foo#
+        // "text"
+        // "text"
+        $this->_var_regexp = '(?:' . $this->_avar_regexp . '|' . $this->_qstr_regexp . ')';
+
+        // matches valid object call (one level of object nesting allowed in parameters):
+        // $foo->bar
+        // $foo->bar()
+        // $foo->bar("text")
+        // $foo->bar($foo, $bar, "text")
+        // $foo->bar($foo, "foo")
+        // $foo->bar->foo()
+        // $foo->bar->foo->bar()
+        // $foo->bar($foo->bar)
+        // $foo->bar($foo->bar())
+        // $foo->bar($foo->bar($blah,$foo,44,"foo",$foo[0].bar))
+        $this->_obj_ext_regexp = '\->(?:\$?' . $this->_dvar_guts_regexp . ')';
+        $this->_obj_restricted_param_regexp = '(?:'
+                . '(?:' . $this->_var_regexp . '|' . $this->_num_const_regexp . ')(?:' . $this->_obj_ext_regexp . '(?:\((?:(?:' . $this->_var_regexp . '|' . $this->_num_const_regexp . ')'
+                . '(?:\s*,\s*(?:' . $this->_var_regexp . '|' . $this->_num_const_regexp . '))*)?\))?)*)';
+        $this->_obj_single_param_regexp = '(?:\w+|' . $this->_obj_restricted_param_regexp . '(?:\s*,\s*(?:(?:\w+|'
+                . $this->_var_regexp . $this->_obj_restricted_param_regexp . ')))*)';
+        $this->_obj_params_regexp = '\((?:' . $this->_obj_single_param_regexp
+                . '(?:\s*,\s*' . $this->_obj_single_param_regexp . ')*)?\)';
+        $this->_obj_start_regexp = '(?:' . $this->_dvar_regexp . '(?:' . $this->_obj_ext_regexp . ')+)';
+        $this->_obj_call_regexp = '(?:' . $this->_obj_start_regexp . '(?:' . $this->_obj_params_regexp . ')?(?:' . $this->_dvar_math_regexp . '(?:' . $this->_num_const_regexp . '|' . $this->_dvar_math_var_regexp . ')*)?)';
+        
+        // matches valid modifier syntax:
+        // |foo
+        // |@foo
+        // |foo:"bar"
+        // |foo:$bar
+        // |foo:"bar":$foobar
+        // |foo|bar
+        // |foo:$foo->bar
+        $this->_mod_regexp = '(?:\|@?\w+(?::(?:\w+|' . $this->_num_const_regexp . '|'
+           . $this->_obj_call_regexp . '|' . $this->_avar_regexp . '|' . $this->_qstr_regexp .'))*)';
+
+        // matches valid function name:
+        // foo123
+        // _foo_bar
+        $this->_func_regexp = '[a-zA-Z_]\w*';
+
+        // matches valid registered object:
+        // foo->bar
+        $this->_reg_obj_regexp = '[a-zA-Z_]\w*->[a-zA-Z_]\w*';
+
+        // matches valid parameter values:
+        // true
+        // $foo
+        // $foo|bar
+        // #foo#
+        // #foo#|bar
+        // "text"
+        // "text"|bar
+        // $foo->bar
+        $this->_param_regexp = '(?:\s*(?:' . $this->_obj_call_regexp . '|'
+           . $this->_var_regexp . '|' . $this->_num_const_regexp  . '|\w+)(?>' . $this->_mod_regexp . '*)\s*)';
+
+        // matches valid parenthesised function parameters:
+        //
+        // "text"
+        //    $foo, $bar, "text"
+        // $foo|bar, "foo"|bar, $foo->bar($foo)|bar
+        $this->_parenth_param_regexp = '(?:\((?:\w+|'
+                . $this->_param_regexp . '(?:\s*,\s*(?:(?:\w+|'
+                . $this->_param_regexp . ')))*)?\))';
+
+        // matches valid function call:
+        // foo()
+        // foo_bar($foo)
+        // _foo_bar($foo,"bar")
+        // foo123($foo,$foo->bar(),"foo")
+        $this->_func_call_regexp = '(?:' . $this->_func_regexp . '\s*(?:'
+           . $this->_parenth_param_regexp . '))';
+    }
+
+    /**
+     * compile a resource
+     *
+     * sets $compiled_content to the compiled source
+     * @param string $resource_name
+     * @param string $source_content
+     * @param string $compiled_content
+     * @return true
+     */
+    function _compile_file($resource_name, $source_content, &$compiled_content)
+    {
+
+        if ($this->security) {
+            // do not allow php syntax to be executed unless specified
+            if ($this->php_handling == SMARTY_PHP_ALLOW &&
+                !$this->security_settings['PHP_HANDLING']) {
+                $this->php_handling = SMARTY_PHP_PASSTHRU;
+            }
+        }
+
+        $this->_load_filters();
+
+        $this->_current_file = $resource_name;
+        $this->_current_line_no = 1;
+        $ldq = preg_quote($this->left_delimiter, '~');
+        $rdq = preg_quote($this->right_delimiter, '~');
+
+        // run template source through prefilter functions
+        if (count($this->_plugins['prefilter']) > 0) {
+            foreach ($this->_plugins['prefilter'] as $filter_name => $prefilter) {
+                if ($prefilter === false) continue;
+                if ($prefilter[3] || is_callable($prefilter[0])) {
+                    $source_content = call_user_func_array($prefilter[0],
+                                                            array($source_content, &$this));
+                    $this->_plugins['prefilter'][$filter_name][3] = true;
+                } else {
+                    $this->_trigger_fatal_error("[plugin] prefilter '$filter_name' is not implemented");
+                }
+            }
+        }
+
+        /* fetch all special blocks */
+        $search = "~{$ldq}\*(.*?)\*{$rdq}|{$ldq}\s*literal\s*{$rdq}(.*?){$ldq}\s*/literal\s*{$rdq}|{$ldq}\s*php\s*{$rdq}(.*?){$ldq}\s*/php\s*{$rdq}~s";
+
+        preg_match_all($search, $source_content, $match,  PREG_SET_ORDER);
+        $this->_folded_blocks = $match;
+        reset($this->_folded_blocks);
+
+        /* replace special blocks by "{php}" */
+        $source_content = preg_replace($search.'e', "'"
+                                       . $this->_quote_replace($this->left_delimiter) . 'php'
+                                       . "' . str_repeat(\"\n\", substr_count('\\0', \"\n\")) .'"
+                                       . $this->_quote_replace($this->right_delimiter)
+                                       . "'"
+                                       , $source_content);
+
+        /* Gather all template tags. */
+        preg_match_all("~{$ldq}\s*(.*?)\s*{$rdq}~s", $source_content, $_match);
+        $template_tags = $_match[1];
+        /* Split content by template tags to obtain non-template content. */
+        $text_blocks = preg_split("~{$ldq}.*?{$rdq}~s", $source_content);
+
+        /* loop through text blocks */
+        for ($curr_tb = 0, $for_max = count($text_blocks); $curr_tb < $for_max; $curr_tb++) {
+            /* match anything resembling php tags */
+            if (preg_match_all('~(<\?(?:\w+|=)?|\?>|language\s*=\s*[\"\']?\s*php\s*[\"\']?)~is', $text_blocks[$curr_tb], $sp_match)) {
+                /* replace tags with placeholders to prevent recursive replacements */
+                $sp_match[1] = array_unique($sp_match[1]);
+                usort($sp_match[1], '_smarty_sort_length');
+                for ($curr_sp = 0, $for_max2 = count($sp_match[1]); $curr_sp < $for_max2; $curr_sp++) {
+                    $text_blocks[$curr_tb] = str_replace($sp_match[1][$curr_sp],'%%%SMARTYSP'.$curr_sp.'%%%',$text_blocks[$curr_tb]);
+                }
+                /* process each one */
+                for ($curr_sp = 0, $for_max2 = count($sp_match[1]); $curr_sp < $for_max2; $curr_sp++) {
+                    if ($this->php_handling == SMARTY_PHP_PASSTHRU) {
+                        /* echo php contents */
+                        $text_blocks[$curr_tb] = str_replace('%%%SMARTYSP'.$curr_sp.'%%%', '<?php echo \''.str_replace("'", "\'", $sp_match[1][$curr_sp]).'\'; ?>'."\n", $text_blocks[$curr_tb]);
+                    } else if ($this->php_handling == SMARTY_PHP_QUOTE) {
+                        /* quote php tags */
+                        $text_blocks[$curr_tb] = str_replace('%%%SMARTYSP'.$curr_sp.'%%%', htmlspecialchars($sp_match[1][$curr_sp]), $text_blocks[$curr_tb]);
+                    } else if ($this->php_handling == SMARTY_PHP_REMOVE) {
+                        /* remove php tags */
+                        $text_blocks[$curr_tb] = str_replace('%%%SMARTYSP'.$curr_sp.'%%%', '', $text_blocks[$curr_tb]);
+                    } else {
+                        /* SMARTY_PHP_ALLOW, but echo non php starting tags */
+                        $sp_match[1][$curr_sp] = preg_replace('~(<\?(?!php|=|$))~i', '<?php echo \'\\1\'?>'."\n", $sp_match[1][$curr_sp]);
+                        $text_blocks[$curr_tb] = str_replace('%%%SMARTYSP'.$curr_sp.'%%%', $sp_match[1][$curr_sp], $text_blocks[$curr_tb]);
+                    }
+                }
+            }
+        }
+        
+        /* Compile the template tags into PHP code. */
+        $compiled_tags = array();
+        for ($i = 0, $for_max = count($template_tags); $i < $for_max; $i++) {
+            $this->_current_line_no += substr_count($text_blocks[$i], "\n");
+            $compiled_tags[] = $this->_compile_tag($template_tags[$i]);
+            $this->_current_line_no += substr_count($template_tags[$i], "\n");
+        }
+        if (count($this->_tag_stack)>0) {
+            list($_open_tag, $_line_no) = end($this->_tag_stack);
+            $this->_syntax_error("unclosed tag \{$_open_tag} (opened line $_line_no).", E_USER_ERROR, __FILE__, __LINE__);
+            return;
+        }
+
+        /* Reformat $text_blocks between 'strip' and '/strip' tags,
+           removing spaces, tabs and newlines. */
+        $strip = false;
+        for ($i = 0, $for_max = count($compiled_tags); $i < $for_max; $i++) {
+            if ($compiled_tags[$i] == '{strip}') {
+                $compiled_tags[$i] = '';
+                $strip = true;
+                /* remove leading whitespaces */
+                $text_blocks[$i + 1] = ltrim($text_blocks[$i + 1]);
+            }
+            if ($strip) {
+                /* strip all $text_blocks before the next '/strip' */
+                for ($j = $i + 1; $j < $for_max; $j++) {
+                    /* remove leading and trailing whitespaces of each line */
+                    $text_blocks[$j] = preg_replace('![\t ]*[\r\n]+[\t ]*!', '', $text_blocks[$j]);
+                    if ($compiled_tags[$j] == '{/strip}') {                       
+                        /* remove trailing whitespaces from the last text_block */
+                        $text_blocks[$j] = rtrim($text_blocks[$j]);
+                    }
+                    $text_blocks[$j] = "<?php echo '" . strtr($text_blocks[$j], array("'"=>"\'", "\\"=>"\\\\")) . "'; ?>";
+                    if ($compiled_tags[$j] == '{/strip}') {
+                        $compiled_tags[$j] = "\n"; /* slurped by php, but necessary
+                                    if a newline is following the closing strip-tag */
+                        $strip = false;
+                        $i = $j;
+                        break;
+                    }
+                }
+            }
+        }
+        $compiled_content = '';
+        
+        $tag_guard = '%%%SMARTYOTG' . md5(uniqid(rand(), true)) . '%%%';
+        
+        /* Interleave the compiled contents and text blocks to get the final result. */
+        for ($i = 0, $for_max = count($compiled_tags); $i < $for_max; $i++) {
+            if ($compiled_tags[$i] == '') {
+                // tag result empty, remove first newline from following text block
+                $text_blocks[$i+1] = preg_replace('~^(\r\n|\r|\n)~', '', $text_blocks[$i+1]);
+            }
+            // replace legit PHP tags with placeholder
+            $text_blocks[$i] = str_replace('<?', $tag_guard, $text_blocks[$i]);
+            $compiled_tags[$i] = str_replace('<?', $tag_guard, $compiled_tags[$i]);
+            
+            $compiled_content .= $text_blocks[$i] . $compiled_tags[$i];
+        }
+        $compiled_content .= str_replace('<?', $tag_guard, $text_blocks[$i]);
+
+        // escape php tags created by interleaving
+        $compiled_content = str_replace('<?', "<?php echo '<?' ?>\n", $compiled_content);
+        $compiled_content = preg_replace("~(?<!')language\s*=\s*[\"\']?\s*php\s*[\"\']?~", "<?php echo 'language=php' ?>\n", $compiled_content);
+
+        // recover legit tags
+        $compiled_content = str_replace($tag_guard, '<?', $compiled_content); 
+        
+        // remove \n from the end of the file, if any
+        if (strlen($compiled_content) && (substr($compiled_content, -1) == "\n") ) {
+            $compiled_content = substr($compiled_content, 0, -1);
+        }
+
+        if (!empty($this->_cache_serial)) {
+            $compiled_content = "<?php \$this->_cache_serials['".$this->_cache_include."'] = '".$this->_cache_serial."'; ?>" . $compiled_content;
+        }
+
+        // run compiled template through postfilter functions
+        if (count($this->_plugins['postfilter']) > 0) {
+            foreach ($this->_plugins['postfilter'] as $filter_name => $postfilter) {
+                if ($postfilter === false) continue;
+                if ($postfilter[3] || is_callable($postfilter[0])) {
+                    $compiled_content = call_user_func_array($postfilter[0],
+                                                              array($compiled_content, &$this));
+                    $this->_plugins['postfilter'][$filter_name][3] = true;
+                } else {
+                    $this->_trigger_fatal_error("Smarty plugin error: postfilter '$filter_name' is not implemented");
+                }
+            }
+        }
+
+        // put header at the top of the compiled template
+        $template_header = "<?php /* Smarty version ".$this->_version.", created on ".strftime("%Y-%m-%d %H:%M:%S")."\n";
+        $template_header .= "         compiled from ".strtr(urlencode($resource_name), array('%2F'=>'/', '%3A'=>':'))." */ ?>\n";
+
+        /* Emit code to load needed plugins. */
+        $this->_plugins_code = '';
+        if (count($this->_plugin_info)) {
+            $_plugins_params = "array('plugins' => array(";
+            foreach ($this->_plugin_info as $plugin_type => $plugins) {
+                foreach ($plugins as $plugin_name => $plugin_info) {
+                    $_plugins_params .= "array('$plugin_type', '$plugin_name', '" . strtr($plugin_info[0], array("'" => "\\'", "\\" => "\\\\")) . "', $plugin_info[1], ";
+                    $_plugins_params .= $plugin_info[2] ? 'true),' : 'false),';
+                }
+            }
+            $_plugins_params .= '))';
+            $plugins_code = "<?php require_once(SMARTY_CORE_DIR . 'core.load_plugins.php');\nsmarty_core_load_plugins($_plugins_params, \$this); ?>\n";
+            $template_header .= $plugins_code;
+            $this->_plugin_info = array();
+            $this->_plugins_code = $plugins_code;
+        }
+
+        if ($this->_init_smarty_vars) {
+            $template_header .= "<?php require_once(SMARTY_CORE_DIR . 'core.assign_smarty_interface.php');\nsmarty_core_assign_smarty_interface(null, \$this); ?>\n";
+            $this->_init_smarty_vars = false;
+        }
+
+        $compiled_content = $template_header . $compiled_content;
+        return true;
+    }
+
+    /**
+     * Compile a template tag
+     *
+     * @param string $template_tag
+     * @return string
+     */
+    function _compile_tag($template_tag)
+    {
+        /* Matched comment. */
+        if (substr($template_tag, 0, 1) == '*' && substr($template_tag, -1) == '*')
+            return '';
+        
+        /* Split tag into two three parts: command, command modifiers and the arguments. */
+        if(! preg_match('~^(?:(' . $this->_num_const_regexp . '|' . $this->_obj_call_regexp . '|' . $this->_var_regexp
+                . '|\/?' . $this->_reg_obj_regexp . '|\/?' . $this->_func_regexp . ')(' . $this->_mod_regexp . '*))
+                      (?:\s+(.*))?$
+                    ~xs', $template_tag, $match)) {
+            $this->_syntax_error("unrecognized tag: $template_tag", E_USER_ERROR, __FILE__, __LINE__);
+        }
+        
+        $tag_command = $match[1];
+        $tag_modifier = isset($match[2]) ? $match[2] : null;
+        $tag_args = isset($match[3]) ? $match[3] : null;
+
+        if (preg_match('~^' . $this->_num_const_regexp . '|' . $this->_obj_call_regexp . '|' . $this->_var_regexp . '$~', $tag_command)) {
+            /* tag name is a variable or object */
+            $_return = $this->_parse_var_props($tag_command . $tag_modifier);
+            return "<?php echo $_return; ?>" . $this->_additional_newline;
+        }
+
+        /* If the tag name is a registered object, we process it. */
+        if (preg_match('~^\/?' . $this->_reg_obj_regexp . '$~', $tag_command)) {
+            return $this->_compile_registered_object_tag($tag_command, $this->_parse_attrs($tag_args), $tag_modifier);
+        }
+
+        switch ($tag_command) {
+            case 'include':
+                return $this->_compile_include_tag($tag_args);
+
+            case 'include_php':
+                return $this->_compile_include_php_tag($tag_args);
+
+            case 'if':
+                $this->_push_tag('if');
+                return $this->_compile_if_tag($tag_args);
+
+            case 'else':
+                list($_open_tag) = end($this->_tag_stack);
+                if ($_open_tag != 'if' && $_open_tag != 'elseif')
+                    $this->_syntax_error('unexpected {else}', E_USER_ERROR, __FILE__, __LINE__);
+                else
+                    $this->_push_tag('else');
+                return '<?php else: ?>';
+
+            case 'elseif':
+                list($_open_tag) = end($this->_tag_stack);
+                if ($_open_tag != 'if' && $_open_tag != 'elseif')
+                    $this->_syntax_error('unexpected {elseif}', E_USER_ERROR, __FILE__, __LINE__);
+                if ($_open_tag == 'if')
+                    $this->_push_tag('elseif');
+                return $this->_compile_if_tag($tag_args, true);
+
+            case '/if':
+                $this->_pop_tag('if');
+                return '<?php endif; ?>';
+
+            case 'capture':
+                return $this->_compile_capture_tag(true, $tag_args);
+
+            case '/capture':
+                return $this->_compile_capture_tag(false);
+
+            case 'ldelim':
+                return $this->left_delimiter;
+
+            case 'rdelim':
+                return $this->right_delimiter;
+
+            case 'section':
+                $this->_push_tag('section');
+                return $this->_compile_section_start($tag_args);
+
+            case 'sectionelse':
+                $this->_push_tag('sectionelse');
+                return "<?php endfor; else: ?>";
+                break;
+
+            case '/section':
+                $_open_tag = $this->_pop_tag('section');
+                if ($_open_tag == 'sectionelse')
+                    return "<?php endif; ?>";
+                else
+                    return "<?php endfor; endif; ?>";
+
+            case 'foreach':
+                $this->_push_tag('foreach');
+                return $this->_compile_foreach_start($tag_args);
+                break;
+
+            case 'foreachelse':
+                $this->_push_tag('foreachelse');
+                return "<?php endforeach; else: ?>";
+
+            case '/foreach':
+                $_open_tag = $this->_pop_tag('foreach');
+                if ($_open_tag == 'foreachelse')
+                    return "<?php endif; unset(\$_from); ?>";
+                else
+                    return "<?php endforeach; endif; unset(\$_from); ?>";
+                break;
+
+            case 'strip':
+            case '/strip':
+                if (substr($tag_command, 0, 1)=='/') {
+                    $this->_pop_tag('strip');
+                    if (--$this->_strip_depth==0) { /* outermost closing {/strip} */
+                        $this->_additional_newline = "\n";
+                        return '{' . $tag_command . '}';
+                    }
+                } else {
+                    $this->_push_tag('strip');
+                    if ($this->_strip_depth++==0) { /* outermost opening {strip} */
+                        $this->_additional_newline = "";
+                        return '{' . $tag_command . '}';
+                    }
+                }
+                return '';
+
+            case 'php':
+                /* handle folded tags replaced by {php} */
+                list(, $block) = each($this->_folded_blocks);
+                $this->_current_line_no += substr_count($block[0], "\n");
+                /* the number of matched elements in the regexp in _compile_file()
+                   determins the type of folded tag that was found */
+                switch (count($block)) {
+                    case 2: /* comment */
+                        return '';
+
+                    case 3: /* literal */
+                        return "<?php echo '" . strtr($block[2], array("'"=>"\'", "\\"=>"\\\\")) . "'; ?>" . $this->_additional_newline;
+
+                    case 4: /* php */
+                        if ($this->security && !$this->security_settings['PHP_TAGS']) {
+                            $this->_syntax_error("(secure mode) php tags not permitted", E_USER_WARNING, __FILE__, __LINE__);
+                            return;
+                        }
+                        return '<?php ' . $block[3] .' ?>';
+                }
+                break;
+
+            case 'insert':
+                return $this->_compile_insert_tag($tag_args);
+
+            default:
+                if ($this->_compile_compiler_tag($tag_command, $tag_args, $output)) {
+                    return $output;
+                } else if ($this->_compile_block_tag($tag_command, $tag_args, $tag_modifier, $output)) {
+                    return $output;
+                } else if ($this->_compile_custom_tag($tag_command, $tag_args, $tag_modifier, $output)) {
+                    return $output;                    
+                } else {
+                    $this->_syntax_error("unrecognized tag '$tag_command'", E_USER_ERROR, __FILE__, __LINE__);
+                }
+
+        }
+    }
+
+
+    /**
+     * compile the custom compiler tag
+     *
+     * sets $output to the compiled custom compiler tag
+     * @param string $tag_command
+     * @param string $tag_args
+     * @param string $output
+     * @return boolean
+     */
+    function _compile_compiler_tag($tag_command, $tag_args, &$output)
+    {
+        $found = false;
+        $have_function = true;
+
+        /*
+         * First we check if the compiler function has already been registered
+         * or loaded from a plugin file.
+         */
+        if (isset($this->_plugins['compiler'][$tag_command])) {
+            $found = true;
+            $plugin_func = $this->_plugins['compiler'][$tag_command][0];
+            if (!is_callable($plugin_func)) {
+                $message = "compiler function '$tag_command' is not implemented";
+                $have_function = false;
+            }
+        }
+        /*
+         * Otherwise we need to load plugin file and look for the function
+         * inside it.
+         */
+        else if ($plugin_file = $this->_get_plugin_filepath('compiler', $tag_command)) {
+            $found = true;
+
+            include_once $plugin_file;
+
+            $plugin_func = 'smarty_compiler_' . $tag_command;
+            if (!is_callable($plugin_func)) {
+                $message = "plugin function $plugin_func() not found in $plugin_file\n";
+                $have_function = false;
+            } else {
+                $this->_plugins['compiler'][$tag_command] = array($plugin_func, null, null, null, true);
+            }
+        }
+
+        /*
+         * True return value means that we either found a plugin or a
+         * dynamically registered function. False means that we didn't and the
+         * compiler should now emit code to load custom function plugin for this
+         * tag.
+         */
+        if ($found) {
+            if ($have_function) {
+                $output = call_user_func_array($plugin_func, array($tag_args, &$this));
+                if($output != '') {
+                $output = '<?php ' . $this->_push_cacheable_state('compiler', $tag_command)
+                                   . $output
+                                   . $this->_pop_cacheable_state('compiler', $tag_command) . ' ?>';
+                }
+            } else {
+                $this->_syntax_error($message, E_USER_WARNING, __FILE__, __LINE__);
+            }
+            return true;
+        } else {
+            return false;
+        }
+    }
+
+
+    /**
+     * compile block function tag
+     *
+     * sets $output to compiled block function tag
+     * @param string $tag_command
+     * @param string $tag_args
+     * @param string $tag_modifier
+     * @param string $output
+     * @return boolean
+     */
+    function _compile_block_tag($tag_command, $tag_args, $tag_modifier, &$output)
+    {
+        if (substr($tag_command, 0, 1) == '/') {
+            $start_tag = false;
+            $tag_command = substr($tag_command, 1);
+        } else
+            $start_tag = true;
+
+        $found = false;
+        $have_function = true;
+
+        /*
+         * First we check if the block function has already been registered
+         * or loaded from a plugin file.
+         */
+        if (isset($this->_plugins['block'][$tag_command])) {
+            $found = true;
+            $plugin_func = $this->_plugins['block'][$tag_command][0];
+            if (!is_callable($plugin_func)) {
+                $message = "block function '$tag_command' is not implemented";
+                $have_function = false;
+            }
+        }
+        /*
+         * Otherwise we need to load plugin file and look for the function
+         * inside it.
+         */
+        else if ($plugin_file = $this->_get_plugin_filepath('block', $tag_command)) {
+            $found = true;
+
+            include_once $plugin_file;
+
+            $plugin_func = 'smarty_block_' . $tag_command;
+            if (!function_exists($plugin_func)) {
+                $message = "plugin function $plugin_func() not found in $plugin_file\n";
+                $have_function = false;
+            } else {
+                $this->_plugins['block'][$tag_command] = array($plugin_func, null, null, null, true);
+
+            }
+        }
+
+        if (!$found) {
+            return false;
+        } else if (!$have_function) {
+            $this->_syntax_error($message, E_USER_WARNING, __FILE__, __LINE__);
+            return true;
+        }
+
+        /*
+         * Even though we've located the plugin function, compilation
+         * happens only once, so the plugin will still need to be loaded
+         * at runtime for future requests.
+         */
+        $this->_add_plugin('block', $tag_command);
+
+        if ($start_tag)
+            $this->_push_tag($tag_command);
+        else
+            $this->_pop_tag($tag_command);
+
+        if ($start_tag) {
+            $output = '<?php ' . $this->_push_cacheable_state('block', $tag_command);
+            $attrs = $this->_parse_attrs($tag_args);
+            $_cache_attrs='';
+            $arg_list = $this->_compile_arg_list('block', $tag_command, $attrs, $_cache_attrs);
+            $output .= "$_cache_attrs\$this->_tag_stack[] = array('$tag_command', array(".implode(',', $arg_list).')); ';
+            $output .= '$_block_repeat=true;' . $this->_compile_plugin_call('block', $tag_command).'($this->_tag_stack[count($this->_tag_stack)-1][1], null, $this, $_block_repeat);';
+            $output .= 'while ($_block_repeat) { ob_start(); ?>';
+        } else {
+            $output = '<?php $_block_content = ob_get_contents(); ob_end_clean(); ';
+            $_out_tag_text = $this->_compile_plugin_call('block', $tag_command).'($this->_tag_stack[count($this->_tag_stack)-1][1], $_block_content, $this, $_block_repeat)';
+            if ($tag_modifier != '') {
+                $this->_parse_modifiers($_out_tag_text, $tag_modifier);
+            }
+            $output .= '$_block_repeat=false;echo ' . $_out_tag_text . '; } ';
+            $output .= " array_pop(\$this->_tag_stack); " . $this->_pop_cacheable_state('block', $tag_command) . '?>';
+        }
+
+        return true;
+    }
+
+
+    /**
+     * compile custom function tag
+     *
+     * @param string $tag_command
+     * @param string $tag_args
+     * @param string $tag_modifier
+     * @return string
+     */
+    function _compile_custom_tag($tag_command, $tag_args, $tag_modifier, &$output)
+    {
+        $found = false;
+        $have_function = true;
+
+        /*
+         * First we check if the custom function has already been registered
+         * or loaded from a plugin file.
+         */
+        if (isset($this->_plugins['function'][$tag_command])) {
+            $found = true;
+            $plugin_func = $this->_plugins['function'][$tag_command][0];
+            if (!is_callable($plugin_func)) {
+                $message = "custom function '$tag_command' is not implemented";
+                $have_function = false;
+            }
+        }
+        /*
+         * Otherwise we need to load plugin file and look for the function
+         * inside it.
+         */
+        else if ($plugin_file = $this->_get_plugin_filepath('function', $tag_command)) {
+            $found = true;
+
+            include_once $plugin_file;
+
+            $plugin_func = 'smarty_function_' . $tag_command;
+            if (!function_exists($plugin_func)) {
+                $message = "plugin function $plugin_func() not found in $plugin_file\n";
+                $have_function = false;
+            } else {
+                $this->_plugins['function'][$tag_command] = array($plugin_func, null, null, null, true);
+
+            }
+        }
+
+        if (!$found) {
+            return false;
+        } else if (!$have_function) {
+            $this->_syntax_error($message, E_USER_WARNING, __FILE__, __LINE__);
+            return true;
+        }
+
+        /* declare plugin to be loaded on display of the template that
+           we compile right now */
+        $this->_add_plugin('function', $tag_command);
+
+        $_cacheable_state = $this->_push_cacheable_state('function', $tag_command);
+        $attrs = $this->_parse_attrs($tag_args);
+        $_cache_attrs = '';
+        $arg_list = $this->_compile_arg_list('function', $tag_command, $attrs, $_cache_attrs);
+
+        $output = $this->_compile_plugin_call('function', $tag_command).'(array('.implode(',', $arg_list)."), \$this)";
+        if($tag_modifier != '') {
+            $this->_parse_modifiers($output, $tag_modifier);
+        }
+
+        if($output != '') {
+            $output =  '<?php ' . $_cacheable_state . $_cache_attrs . 'echo ' . $output . ';'
+                . $this->_pop_cacheable_state('function', $tag_command) . "?>" . $this->_additional_newline;
+        }
+
+        return true;
+    }
+
+    /**
+     * compile a registered object tag
+     *
+     * @param string $tag_command
+     * @param array $attrs
+     * @param string $tag_modifier
+     * @return string
+     */
+    function _compile_registered_object_tag($tag_command, $attrs, $tag_modifier)
+    {
+        if (substr($tag_command, 0, 1) == '/') {
+            $start_tag = false;
+            $tag_command = substr($tag_command, 1);
+        } else {
+            $start_tag = true;
+        }
+
+        list($object, $obj_comp) = explode('->', $tag_command);
+
+        $arg_list = array();
+        if(count($attrs)) {
+            $_assign_var = false;
+            foreach ($attrs as $arg_name => $arg_value) {
+                if($arg_name == 'assign') {
+                    $_assign_var = $arg_value;
+                    unset($attrs['assign']);
+                    continue;
+                }
+                if (is_bool($arg_value))
+                    $arg_value = $arg_value ? 'true' : 'false';
+                $arg_list[] = "'$arg_name' => $arg_value";
+            }
+        }
+
+        if($this->_reg_objects[$object][2]) {
+            // smarty object argument format
+            $args = "array(".implode(',', (array)$arg_list)."), \$this";
+        } else {
+            // traditional argument format
+            $args = implode(',', array_values($attrs));
+            if (empty($args)) {
+                $args = '';
+            }
+        }
+
+        $prefix = '';
+        $postfix = '';
+        $newline = '';
+        if(!is_object($this->_reg_objects[$object][0])) {
+            $this->_trigger_fatal_error("registered '$object' is not an object" , $this->_current_file, $this->_current_line_no, __FILE__, __LINE__);
+        } elseif(!empty($this->_reg_objects[$object][1]) && !in_array($obj_comp, $this->_reg_objects[$object][1])) {
+            $this->_trigger_fatal_error("'$obj_comp' is not a registered component of object '$object'", $this->_current_file, $this->_current_line_no, __FILE__, __LINE__);
+        } elseif(method_exists($this->_reg_objects[$object][0], $obj_comp)) {
+            // method
+            if(in_array($obj_comp, $this->_reg_objects[$object][3])) {
+                // block method
+                if ($start_tag) {
+                    $prefix = "\$this->_tag_stack[] = array('$obj_comp', $args); ";
+                    $prefix .= "\$_block_repeat=true; \$this->_reg_objects['$object'][0]->$obj_comp(\$this->_tag_stack[count(\$this->_tag_stack)-1][1], null, \$this, \$_block_repeat); ";
+                    $prefix .= "while (\$_block_repeat) { ob_start();";
+                    $return = null;
+                    $postfix = '';
+                } else {
+                    $prefix = "\$_obj_block_content = ob_get_contents(); ob_end_clean(); \$_block_repeat=false;";
+                    $return = "\$this->_reg_objects['$object'][0]->$obj_comp(\$this->_tag_stack[count(\$this->_tag_stack)-1][1], \$_obj_block_content, \$this, \$_block_repeat)";
+                    $postfix = "} array_pop(\$this->_tag_stack);";
+                }
+            } else {
+                // non-block method
+                $return = "\$this->_reg_objects['$object'][0]->$obj_comp($args)";
+            }
+        } else {
+            // property
+            $return = "\$this->_reg_objects['$object'][0]->$obj_comp";
+        }
+
+        if($return != null) {
+            if($tag_modifier != '') {
+                $this->_parse_modifiers($return, $tag_modifier);
+            }
+
+            if(!empty($_assign_var)) {
+                $output = "\$this->assign('" . $this->_dequote($_assign_var) ."',  $return);";
+            } else {
+                $output = 'echo ' . $return . ';';
+                $newline = $this->_additional_newline;
+            }
+        } else {
+            $output = '';
+        }
+
+        return '<?php ' . $prefix . $output . $postfix . "?>" . $newline;
+    }
+
+    /**
+     * Compile {insert ...} tag
+     *
+     * @param string $tag_args
+     * @return string
+     */
+    function _compile_insert_tag($tag_args)
+    {
+        $attrs = $this->_parse_attrs($tag_args);
+        $name = $this->_dequote($attrs['name']);
+
+        if (empty($name)) {
+            return $this->_syntax_error("missing insert name", E_USER_ERROR, __FILE__, __LINE__);
+        }
+        
+        if (!preg_match('~^\w+$~', $name)) {
+            return $this->_syntax_error("'insert: 'name' must be an insert function name", E_USER_ERROR, __FILE__, __LINE__);
+        }
+
+        if (!empty($attrs['script'])) {
+            $delayed_loading = true;
+        } else {
+            $delayed_loading = false;
+        }
+
+        foreach ($attrs as $arg_name => $arg_value) {
+            if (is_bool($arg_value))
+                $arg_value = $arg_value ? 'true' : 'false';
+            $arg_list[] = "'$arg_name' => $arg_value";
+        }
+
+        $this->_add_plugin('insert', $name, $delayed_loading);
+
+        $_params = "array('args' => array(".implode(', ', (array)$arg_list)."))";
+
+        return "<?php require_once(SMARTY_CORE_DIR . 'core.run_insert_handler.php');\necho smarty_core_run_insert_handler($_params, \$this); ?>" . $this->_additional_newline;
+    }
+
+    /**
+     * Compile {include ...} tag
+     *
+     * @param string $tag_args
+     * @return string
+     */
+    function _compile_include_tag($tag_args)
+    {
+        $attrs = $this->_parse_attrs($tag_args);
+        $arg_list = array();
+
+        if (empty($attrs['file'])) {
+            $this->_syntax_error("missing 'file' attribute in include tag", E_USER_ERROR, __FILE__, __LINE__);
+        }
+
+        foreach ($attrs as $arg_name => $arg_value) {
+            if ($arg_name == 'file') {
+                $include_file = $arg_value;
+                continue;
+            } else if ($arg_name == 'assign') {
+                $assign_var = $arg_value;
+                continue;
+            }
+            if (is_bool($arg_value))
+                $arg_value = $arg_value ? 'true' : 'false';
+            $arg_list[] = "'$arg_name' => $arg_value";
+        }
+
+        $output = '<?php ';
+
+        if (isset($assign_var)) {
+            $output .= "ob_start();\n";
+        }
+
+        $output .=
+            "\$_smarty_tpl_vars = \$this->_tpl_vars;\n";
+
+
+        $_params = "array('smarty_include_tpl_file' => " . $include_file . ", 'smarty_include_vars' => array(".implode(',', (array)$arg_list)."))";
+        $output .= "\$this->_smarty_include($_params);\n" .
+        "\$this->_tpl_vars = \$_smarty_tpl_vars;\n" .
+        "unset(\$_smarty_tpl_vars);\n";
+
+        if (isset($assign_var)) {
+            $output .= "\$this->assign(" . $assign_var . ", ob_get_contents()); ob_end_clean();\n";
+        }
+
+        $output .= ' ?>';
+
+        return $output;
+
+    }
+
+    /**
+     * Compile {include ...} tag
+     *
+     * @param string $tag_args
+     * @return string
+     */
+    function _compile_include_php_tag($tag_args)
+    {
+        $attrs = $this->_parse_attrs($tag_args);
+
+        if (empty($attrs['file'])) {
+            $this->_syntax_error("missing 'file' attribute in include_php tag", E_USER_ERROR, __FILE__, __LINE__);
+        }
+
+        $assign_var = (empty($attrs['assign'])) ? '' : $this->_dequote($attrs['assign']);
+        $once_var = (empty($attrs['once']) || $attrs['once']=='false') ? 'false' : 'true';
+
+        $arg_list = array();
+        foreach($attrs as $arg_name => $arg_value) {
+            if($arg_name != 'file' AND $arg_name != 'once' AND $arg_name != 'assign') {
+                if(is_bool($arg_value))
+                    $arg_value = $arg_value ? 'true' : 'false';
+                $arg_list[] = "'$arg_name' => $arg_value";
+            }
+        }
+
+        $_params = "array('smarty_file' => " . $attrs['file'] . ", 'smarty_assign' => '$assign_var', 'smarty_once' => $once_var, 'smarty_include_vars' => array(".implode(',', $arg_list)."))";
+
+        return "<?php require_once(SMARTY_CORE_DIR . 'core.smarty_include_php.php');\nsmarty_core_smarty_include_php($_params, \$this); ?>" . $this->_additional_newline;
+    }
+
+
+    /**
+     * Compile {section ...} tag
+     *
+     * @param string $tag_args
+     * @return string
+     */
+    function _compile_section_start($tag_args)
+    {
+        $attrs = $this->_parse_attrs($tag_args);
+        $arg_list = array();
+
+        $output = '<?php ';
+        $section_name = $attrs['name'];
+        if (empty($section_name)) {
+            $this->_syntax_error("missing section name", E_USER_ERROR, __FILE__, __LINE__);
+        }
+
+        $output .= "unset(\$this->_sections[$section_name]);\n";
+        $section_props = "\$this->_sections[$section_name]";
+
+        foreach ($attrs as $attr_name => $attr_value) {
+            switch ($attr_name) {
+                case 'loop':
+                    $output .= "{$section_props}['loop'] = is_array(\$_loop=$attr_value) ? count(\$_loop) : max(0, (int)\$_loop); unset(\$_loop);\n";
+                    break;
+
+                case 'show':
+                    if (is_bool($attr_value))
+                        $show_attr_value = $attr_value ? 'true' : 'false';
+                    else
+                        $show_attr_value = "(bool)$attr_value";
+                    $output .= "{$section_props}['show'] = $show_attr_value;\n";
+                    break;
+
+                case 'name':
+                    $output .= "{$section_props}['$attr_name'] = $attr_value;\n";
+                    break;
+
+                case 'max':
+                case 'start':
+                    $output .= "{$section_props}['$attr_name'] = (int)$attr_value;\n";
+                    break;
+
+                case 'step':
+                    $output .= "{$section_props}['$attr_name'] = ((int)$attr_value) == 0 ? 1 : (int)$attr_value;\n";
+                    break;
+
+                default:
+                    $this->_syntax_error("unknown section attribute - '$attr_name'", E_USER_ERROR, __FILE__, __LINE__);
+                    break;
+            }
+        }
+
+        if (!isset($attrs['show']))
+            $output .= "{$section_props}['show'] = true;\n";
+
+        if (!isset($attrs['loop']))
+            $output .= "{$section_props}['loop'] = 1;\n";
+
+        if (!isset($attrs['max']))
+            $output .= "{$section_props}['max'] = {$section_props}['loop'];\n";
+        else
+            $output .= "if ({$section_props}['max'] < 0)\n" .
+                       "    {$section_props}['max'] = {$section_props}['loop'];\n";
+
+        if (!isset($attrs['step']))
+            $output .= "{$section_props}['step'] = 1;\n";
+
+        if (!isset($attrs['start']))
+            $output .= "{$section_props}['start'] = {$section_props}['step'] > 0 ? 0 : {$section_props}['loop']-1;\n";
+        else {
+            $output .= "if ({$section_props}['start'] < 0)\n" .
+                       "    {$section_props}['start'] = max({$section_props}['step'] > 0 ? 0 : -1, {$section_props}['loop'] + {$section_props}['start']);\n" .
+                       "else\n" .
+                       "    {$section_props}['start'] = min({$section_props}['start'], {$section_props}['step'] > 0 ? {$section_props}['loop'] : {$section_props}['loop']-1);\n";
+        }
+
+        $output .= "if ({$section_props}['show']) {\n";
+        if (!isset($attrs['start']) && !isset($attrs['step']) && !isset($attrs['max'])) {
+            $output .= "    {$section_props}['total'] = {$section_props}['loop'];\n";
+        } else {
+            $output .= "    {$section_props}['total'] = min(ceil(({$section_props}['step'] > 0 ? {$section_props}['loop'] - {$section_props}['start'] : {$section_props}['start']+1)/abs({$section_props}['step'])), {$section_props}['max']);\n";
+        }
+        $output .= "    if ({$section_props}['total'] == 0)\n" .
+                   "        {$section_props}['show'] = false;\n" .
+                   "} else\n" .
+                   "    {$section_props}['total'] = 0;\n";
+
+        $output .= "if ({$section_props}['show']):\n";
+        $output .= "
+            for ({$section_props}['index'] = {$section_props}['start'], {$section_props}['iteration'] = 1;
+                 {$section_props}['iteration'] <= {$section_props}['total'];
+                 {$section_props}['index'] += {$section_props}['step'], {$section_props}['iteration']++):\n";
+        $output .= "{$section_props}['rownum'] = {$section_props}['iteration'];\n";
+        $output .= "{$section_props}['index_prev'] = {$section_props}['index'] - {$section_props}['step'];\n";
+        $output .= "{$section_props}['index_next'] = {$section_props}['index'] + {$section_props}['step'];\n";
+        $output .= "{$section_props}['first']      = ({$section_props}['iteration'] == 1);\n";
+        $output .= "{$section_props}['last']       = ({$section_props}['iteration'] == {$section_props}['total']);\n";
+
+        $output .= "?>";
+
+        return $output;
+    }
+
+
+    /**
+     * Compile {foreach ...} tag.
+     *
+     * @param string $tag_args
+     * @return string
+     */
+    function _compile_foreach_start($tag_args)
+    {
+        $attrs = $this->_parse_attrs($tag_args);
+        $arg_list = array();
+
+        if (empty($attrs['from'])) {
+            return $this->_syntax_error("foreach: missing 'from' attribute", E_USER_ERROR, __FILE__, __LINE__);
+        }
+        $from = $attrs['from'];
+
+        if (empty($attrs['item'])) {
+            return $this->_syntax_error("foreach: missing 'item' attribute", E_USER_ERROR, __FILE__, __LINE__);
+        }
+        $item = $this->_dequote($attrs['item']);
+        if (!preg_match('~^\w+$~', $item)) {
+            return $this->_syntax_error("foreach: 'item' must be a variable name (literal string)", E_USER_ERROR, __FILE__, __LINE__);
+        }
+
+        if (isset($attrs['key'])) {
+            $key  = $this->_dequote($attrs['key']);
+            if (!preg_match('~^\w+$~', $key)) {
+                return $this->_syntax_error("foreach: 'key' must to be a variable name (literal string)", E_USER_ERROR, __FILE__, __LINE__);
+            }
+            $key_part = "\$this->_tpl_vars['$key'] => ";
+        } else {
+            $key = null;
+            $key_part = '';
+        }
+
+        if (isset($attrs['name'])) {
+            $name = $attrs['name'];
+        } else {
+            $name = null;
+        }
+
+        $output = '<?php ';
+        $output .= "\$_from = $from; if (!is_array(\$_from) && !is_object(\$_from)) { settype(\$_from, 'array'); }";
+        if (isset($name)) {
+            $foreach_props = "\$this->_foreach[$name]";
+            $output .= "{$foreach_props} = array('total' => count(\$_from), 'iteration' => 0);\n";
+            $output .= "if ({$foreach_props}['total'] > 0):\n";
+            $output .= "    foreach (\$_from as $key_part\$this->_tpl_vars['$item']):\n";
+            $output .= "        {$foreach_props}['iteration']++;\n";
+        } else {
+            $output .= "if (count(\$_from)):\n";
+            $output .= "    foreach (\$_from as $key_part\$this->_tpl_vars['$item']):\n";
+        }
+        $output .= '?>';
+
+        return $output;
+    }
+
+
+    /**
+     * Compile {capture} .. {/capture} tags
+     *
+     * @param boolean $start true if this is the {capture} tag
+     * @param string $tag_args
+     * @return string
+     */
+
+    function _compile_capture_tag($start, $tag_args = '')
+    {
+        $attrs = $this->_parse_attrs($tag_args);
+
+        if ($start) {
+            $buffer = isset($attrs['name']) ? $attrs['name'] : "'default'";
+            $assign = isset($attrs['assign']) ? $attrs['assign'] : null;
+            $append = isset($attrs['append']) ? $attrs['append'] : null;
+            
+            $output = "<?php ob_start(); ?>";
+            $this->_capture_stack[] = array($buffer, $assign, $append);
+        } else {
+            list($buffer, $assign, $append) = array_pop($this->_capture_stack);
+            $output = "<?php \$this->_smarty_vars['capture'][$buffer] = ob_get_contents(); ";
+            if (isset($assign)) {
+                $output .= " \$this->assign($assign, ob_get_contents());";
+            }
+            if (isset($append)) {
+                $output .= " \$this->append($append, ob_get_contents());";
+            }
+            $output .= "ob_end_clean(); ?>";
+        }
+
+        return $output;
+    }
+
+    /**
+     * Compile {if ...} tag
+     *
+     * @param string $tag_args
+     * @param boolean $elseif if true, uses elseif instead of if
+     * @return string
+     */
+    function _compile_if_tag($tag_args, $elseif = false)
+    {
+
+        /* Tokenize args for 'if' tag. */
+        preg_match_all('~(?>
+                ' . $this->_obj_call_regexp . '(?:' . $this->_mod_regexp . '*)? | # valid object call
+                ' . $this->_var_regexp . '(?:' . $this->_mod_regexp . '*)?    | # var or quoted string
+                \-?0[xX][0-9a-fA-F]+|\-?\d+(?:\.\d+)?|\.\d+|!==|===|==|!=|<>|<<|>>|<=|>=|\&\&|\|\||\(|\)|,|\!|\^|=|\&|\~|<|>|\||\%|\+|\-|\/|\*|\@    | # valid non-word token
+                \b\w+\b                                                        | # valid word token
+                \S+                                                           # anything else
+                )~x', $tag_args, $match);
+
+        $tokens = $match[0];
+
+        if(empty($tokens)) {
+            $_error_msg = $elseif ? "'elseif'" : "'if'";
+            $_error_msg .= ' statement requires arguments'; 
+            $this->_syntax_error($_error_msg, E_USER_ERROR, __FILE__, __LINE__);
+        }
+            
+                
+        // make sure we have balanced parenthesis
+        $token_count = array_count_values($tokens);
+        if(isset($token_count['(']) && $token_count['('] != $token_count[')']) {
+            $this->_syntax_error("unbalanced parenthesis in if statement", E_USER_ERROR, __FILE__, __LINE__);
+        }
+
+        $is_arg_stack = array();
+
+        for ($i = 0; $i < count($tokens); $i++) {
+
+            $token = &$tokens[$i];
+
+            switch (strtolower($token)) {
+                case '!':
+                case '%':
+                case '!==':
+                case '==':
+                case '===':
+                case '>':
+                case '<':
+                case '!=':
+                case '<>':
+                case '<<':
+                case '>>':
+                case '<=':
+                case '>=':
+                case '&&':
+                case '||':
+                case '|':
+                case '^':
+                case '&':
+                case '~':
+                case ')':
+                case ',':
+                case '+':
+                case '-':
+                case '*':
+                case '/':
+                case '@':
+                    break;
+
+                case 'eq':
+                    $token = '==';
+                    break;
+
+                case 'ne':
+                case 'neq':
+                    $token = '!=';
+                    break;
+
+                case 'lt':
+                    $token = '<';
+                    break;
+
+                case 'le':
+                case 'lte':
+                    $token = '<=';
+                    break;
+
+                case 'gt':
+                    $token = '>';
+                    break;
+
+                case 'ge':
+                case 'gte':
+                    $token = '>=';
+                    break;
+
+                case 'and':
+                    $token = '&&';
+                    break;
+
+                case 'or':
+                    $token = '||';
+                    break;
+
+                case 'not':
+                    $token = '!';
+                    break;
+
+                case 'mod':
+                    $token = '%';
+                    break;
+
+                case '(':
+                    array_push($is_arg_stack, $i);
+                    break;
+
+                case 'is':
+                    /* If last token was a ')', we operate on the parenthesized
+                       expression. The start of the expression is on the stack.
+                       Otherwise, we operate on the last encountered token. */
+                    if ($tokens[$i-1] == ')')
+                        $is_arg_start = array_pop($is_arg_stack);
+                    else
+                        $is_arg_start = $i-1;
+                    /* Construct the argument for 'is' expression, so it knows
+                       what to operate on. */
+                    $is_arg = implode(' ', array_slice($tokens, $is_arg_start, $i - $is_arg_start));
+
+                    /* Pass all tokens from next one until the end to the
+                       'is' expression parsing function. The function will
+                       return modified tokens, where the first one is the result
+                       of the 'is' expression and the rest are the tokens it
+                       didn't touch. */
+                    $new_tokens = $this->_parse_is_expr($is_arg, array_slice($tokens, $i+1));
+
+                    /* Replace the old tokens with the new ones. */
+                    array_splice($tokens, $is_arg_start, count($tokens), $new_tokens);
+
+                    /* Adjust argument start so that it won't change from the
+                       current position for the next iteration. */
+                    $i = $is_arg_start;
+                    break;
+
+                default:
+                    if(preg_match('~^' . $this->_func_regexp . '$~', $token) ) {
+                            // function call
+                            if($this->security &&
+                               !in_array($token, $this->security_settings['IF_FUNCS'])) {
+                                $this->_syntax_error("(secure mode) '$token' not allowed in if statement", E_USER_ERROR, __FILE__, __LINE__);
+                            }
+                    } elseif(preg_match('~^' . $this->_var_regexp . '$~', $token) && (strpos('+-*/^%&|', substr($token, -1)) === false) && isset($tokens[$i+1]) && $tokens[$i+1] == '(') {
+                        // variable function call
+                        $this->_syntax_error("variable function call '$token' not allowed in if statement", E_USER_ERROR, __FILE__, __LINE__);                      
+                    } elseif(preg_match('~^' . $this->_obj_call_regexp . '|' . $this->_var_regexp . '(?:' . $this->_mod_regexp . '*)$~', $token)) {
+                        // object or variable
+                        $token = $this->_parse_var_props($token);
+                    } elseif(is_numeric($token)) {
+                        // number, skip it
+                    } else {
+                        $this->_syntax_error("unidentified token '$token'", E_USER_ERROR, __FILE__, __LINE__);
+                    }
+                    break;
+            }
+        }
+
+        if ($elseif)
+            return '<?php elseif ('.implode(' ', $tokens).'): ?>';
+        else
+            return '<?php if ('.implode(' ', $tokens).'): ?>';
+    }
+
+
+    function _compile_arg_list($type, $name, $attrs, &$cache_code) {
+        $arg_list = array();
+
+        if (isset($type) && isset($name)
+            && isset($this->_plugins[$type])
+            && isset($this->_plugins[$type][$name])
+            && empty($this->_plugins[$type][$name][4])
+            && is_array($this->_plugins[$type][$name][5])
+            ) {
+            /* we have a list of parameters that should be cached */
+            $_cache_attrs = $this->_plugins[$type][$name][5];
+            $_count = $this->_cache_attrs_count++;
+            $cache_code = "\$_cache_attrs =& \$this->_smarty_cache_attrs('$this->_cache_serial','$_count');";
+
+        } else {
+            /* no parameters are cached */
+            $_cache_attrs = null;
+        }
+
+        foreach ($attrs as $arg_name => $arg_value) {
+            if (is_bool($arg_value))
+                $arg_value = $arg_value ? 'true' : 'false';
+            if (is_null($arg_value))
+                $arg_value = 'null';
+            if ($_cache_attrs && in_array($arg_name, $_cache_attrs)) {
+                $arg_list[] = "'$arg_name' => (\$this->_cache_including) ? \$_cache_attrs['$arg_name'] : (\$_cache_attrs['$arg_name']=$arg_value)";
+            } else {
+                $arg_list[] = "'$arg_name' => $arg_value";
+            }
+        }
+        return $arg_list;
+    }
+
+    /**
+     * Parse is expression
+     *
+     * @param string $is_arg
+     * @param array $tokens
+     * @return array
+     */
+    function _parse_is_expr($is_arg, $tokens)
+    {
+        $expr_end = 0;
+        $negate_expr = false;
+
+        if (($first_token = array_shift($tokens)) == 'not') {
+            $negate_expr = true;
+            $expr_type = array_shift($tokens);
+        } else
+            $expr_type = $first_token;
+
+        switch ($expr_type) {
+            case 'even':
+                if (isset($tokens[$expr_end]) && $tokens[$expr_end] == 'by') {
+                    $expr_end++;
+                    $expr_arg = $tokens[$expr_end++];
+                    $expr = "!(1 & ($is_arg / " . $this->_parse_var_props($expr_arg) . "))";
+                } else
+                    $expr = "!(1 & $is_arg)";
+                break;
+
+            case 'odd':
+                if (isset($tokens[$expr_end]) && $tokens[$expr_end] == 'by') {
+                    $expr_end++;
+                    $expr_arg = $tokens[$expr_end++];
+                    $expr = "(1 & ($is_arg / " . $this->_parse_var_props($expr_arg) . "))";
+                } else
+                    $expr = "(1 & $is_arg)";
+                break;
+
+            case 'div':
+                if (@$tokens[$expr_end] == 'by') {
+                    $expr_end++;
+                    $expr_arg = $tokens[$expr_end++];
+                    $expr = "!($is_arg % " . $this->_parse_var_props($expr_arg) . ")";
+                } else {
+                    $this->_syntax_error("expecting 'by' after 'div'", E_USER_ERROR, __FILE__, __LINE__);
+                }
+                break;
+
+            default:
+                $this->_syntax_error("unknown 'is' expression - '$expr_type'", E_USER_ERROR, __FILE__, __LINE__);
+                break;
+        }
+
+        if ($negate_expr) {
+            $expr = "!($expr)";
+        }
+
+        array_splice($tokens, 0, $expr_end, $expr);
+
+        return $tokens;
+    }
+
+
+    /**
+     * Parse attribute string
+     *
+     * @param string $tag_args
+     * @return array
+     */
+    function _parse_attrs($tag_args)
+    {
+
+        /* Tokenize tag attributes. */
+        preg_match_all('~(?:' . $this->_obj_call_regexp . '|' . $this->_qstr_regexp . ' | (?>[^"\'=\s]+)
+                         )+ |
+                         [=]
+                        ~x', $tag_args, $match);
+        $tokens       = $match[0];
+
+        $attrs = array();
+        /* Parse state:
+            0 - expecting attribute name
+            1 - expecting '='
+            2 - expecting attribute value (not '=') */
+        $state = 0;
+
+        foreach ($tokens as $token) {
+            switch ($state) {
+                case 0:
+                    /* If the token is a valid identifier, we set attribute name
+                       and go to state 1. */
+                    if (preg_match('~^\w+$~', $token)) {
+                        $attr_name = $token;
+                        $state = 1;
+                    } else
+                        $this->_syntax_error("invalid attribute name: '$token'", E_USER_ERROR, __FILE__, __LINE__);
+                    break;
+
+                case 1:
+                    /* If the token is '=', then we go to state 2. */
+                    if ($token == '=') {
+                        $state = 2;
+                    } else
+                        $this->_syntax_error("expecting '=' after attribute name '$last_token'", E_USER_ERROR, __FILE__, __LINE__);
+                    break;
+
+                case 2:
+                    /* If token is not '=', we set the attribute value and go to
+                       state 0. */
+                    if ($token != '=') {
+                        /* We booleanize the token if it's a non-quoted possible
+                           boolean value. */
+                        if (preg_match('~^(on|yes|true)$~', $token)) {
+                            $token = 'true';
+                        } else if (preg_match('~^(off|no|false)$~', $token)) {
+                            $token = 'false';
+                        } else if ($token == 'null') {
+                            $token = 'null';
+                        } else if (preg_match('~^' . $this->_num_const_regexp . '|0[xX][0-9a-fA-F]+$~', $token)) {
+                            /* treat integer literally */
+                        } else if (!preg_match('~^' . $this->_obj_call_regexp . '|' . $this->_var_regexp . '(?:' . $this->_mod_regexp . ')*$~', $token)) {
+                            /* treat as a string, double-quote it escaping quotes */
+                            $token = '"'.addslashes($token).'"';
+                        }
+
+                        $attrs[$attr_name] = $token;
+                        $state = 0;
+                    } else
+                        $this->_syntax_error("'=' cannot be an attribute value", E_USER_ERROR, __FILE__, __LINE__);
+                    break;
+            }
+            $last_token = $token;
+        }
+
+        if($state != 0) {
+            if($state == 1) {
+                $this->_syntax_error("expecting '=' after attribute name '$last_token'", E_USER_ERROR, __FILE__, __LINE__);
+            } else {
+                $this->_syntax_error("missing attribute value", E_USER_ERROR, __FILE__, __LINE__);
+            }
+        }
+
+        $this->_parse_vars_props($attrs);
+
+        return $attrs;
+    }
+
+    /**
+     * compile multiple variables and section properties tokens into
+     * PHP code
+     *
+     * @param array $tokens
+     */
+    function _parse_vars_props(&$tokens)
+    {
+        foreach($tokens as $key => $val) {
+            $tokens[$key] = $this->_parse_var_props($val);
+        }
+    }
+
+    /**
+     * compile single variable and section properties token into
+     * PHP code
+     *
+     * @param string $val
+     * @param string $tag_attrs
+     * @return string
+     */
+    function _parse_var_props($val)
+    {
+        $val = trim($val);
+
+        if(preg_match('~^(' . $this->_obj_call_regexp . '|' . $this->_dvar_regexp . ')(' . $this->_mod_regexp . '*)$~', $val, $match)) {
+            // $ variable or object
+            $return = $this->_parse_var($match[1]);
+            $modifiers = $match[2];
+            if (!empty($this->default_modifiers) && !preg_match('~(^|\|)smarty:nodefaults($|\|)~',$modifiers)) {
+                $_default_mod_string = implode('|',(array)$this->default_modifiers);
+                $modifiers = empty($modifiers) ? $_default_mod_string : $_default_mod_string . '|' . $modifiers;
+            }
+            $this->_parse_modifiers($return, $modifiers);
+            return $return;
+        } elseif (preg_match('~^' . $this->_db_qstr_regexp . '(?:' . $this->_mod_regexp . '*)$~', $val)) {
+                // double quoted text
+                preg_match('~^(' . $this->_db_qstr_regexp . ')('. $this->_mod_regexp . '*)$~', $val, $match);
+                $return = $this->_expand_quoted_text($match[1]);
+                if($match[2] != '') {
+                    $this->_parse_modifiers($return, $match[2]);
+                }
+                return $return;
+            }
+        elseif(preg_match('~^' . $this->_num_const_regexp . '(?:' . $this->_mod_regexp . '*)$~', $val)) {
+                // numerical constant
+                preg_match('~^(' . $this->_num_const_regexp . ')('. $this->_mod_regexp . '*)$~', $val, $match);
+                if($match[2] != '') {
+                    $this->_parse_modifiers($match[1], $match[2]);
+                    return $match[1];
+                }
+            }
+        elseif(preg_match('~^' . $this->_si_qstr_regexp . '(?:' . $this->_mod_regexp . '*)$~', $val)) {
+                // single quoted text
+                preg_match('~^(' . $this->_si_qstr_regexp . ')('. $this->_mod_regexp . '*)$~', $val, $match);
+                if($match[2] != '') {
+                    $this->_parse_modifiers($match[1], $match[2]);
+                    return $match[1];
+                }
+            }
+        elseif(preg_match('~^' . $this->_cvar_regexp . '(?:' . $this->_mod_regexp . '*)$~', $val)) {
+                // config var
+                return $this->_parse_conf_var($val);
+            }
+        elseif(preg_match('~^' . $this->_svar_regexp . '(?:' . $this->_mod_regexp . '*)$~', $val)) {
+                // section var
+                return $this->_parse_section_prop($val);
+            }
+        elseif(!in_array($val, $this->_permitted_tokens) && !is_numeric($val)) {
+            // literal string
+            return $this->_expand_quoted_text('"' . strtr($val, array('\\' => '\\\\', '"' => '\\"')) .'"');
+        }
+        return $val;
+    }
+
+    /**
+     * expand quoted text with embedded variables
+     *
+     * @param string $var_expr
+     * @return string
+     */
+    function _expand_quoted_text($var_expr)
+    {
+        // if contains unescaped $, expand it
+        if(preg_match_all('~(?:\`(?<!\\\\)\$' . $this->_dvar_guts_regexp . '(?:' . $this->_obj_ext_regexp . ')*\`)|(?:(?<!\\\\)\$\w+(\[[a-zA-Z0-9]+\])*)~', $var_expr, $_match)) {
+            $_match = $_match[0];
+            $_replace = array();
+            foreach($_match as $_var) {
+                $_replace[$_var] = '".(' . $this->_parse_var(str_replace('`','',$_var)) . ')."';
+            }
+            $var_expr = strtr($var_expr, $_replace);
+            $_return = preg_replace('~\.""|(?<!\\\\)""\.~', '', $var_expr);
+        } else {
+            $_return = $var_expr;
+        }
+        // replace double quoted literal string with single quotes
+        $_return = preg_replace('~^"([\s\w]+)"$~',"'\\1'",$_return);
+        return $_return;
+    }
+
+    /**
+     * parse variable expression into PHP code
+     *
+     * @param string $var_expr
+     * @param string $output
+     * @return string
+     */
+    function _parse_var($var_expr)
+    {
+        $_has_math = false;
+        $_math_vars = preg_split('~('.$this->_dvar_math_regexp.'|'.$this->_qstr_regexp.')~', $var_expr, -1, PREG_SPLIT_DELIM_CAPTURE);
+
+        if(count($_math_vars) > 1) {
+            $_first_var = "";
+            $_complete_var = "";
+            $_output = "";
+            // simple check if there is any math, to stop recursion (due to modifiers with "xx % yy" as parameter)
+            foreach($_math_vars as $_k => $_math_var) {
+                $_math_var = $_math_vars[$_k];
+
+                if(!empty($_math_var) || is_numeric($_math_var)) {
+                    // hit a math operator, so process the stuff which came before it
+                    if(preg_match('~^' . $this->_dvar_math_regexp . '$~', $_math_var)) {
+                        $_has_math = true;
+                        if(!empty($_complete_var) || is_numeric($_complete_var)) {
+                            $_output .= $this->_parse_var($_complete_var);
+                        }
+
+                        // just output the math operator to php
+                        $_output .= $_math_var;
+
+                        if(empty($_first_var))
+                            $_first_var = $_complete_var;
+
+                        $_complete_var = "";
+                    } else {
+                        $_complete_var .= $_math_var;
+                    }
+                }
+            }
+            if($_has_math) {
+                if(!empty($_complete_var) || is_numeric($_complete_var))
+                    $_output .= $this->_parse_var($_complete_var);
+
+                // get the modifiers working (only the last var from math + modifier is left)
+                $var_expr = $_complete_var;
+            }
+        }
+
+        // prevent cutting of first digit in the number (we _definitly_ got a number if the first char is a digit)
+        if(is_numeric(substr($var_expr, 0, 1)))
+            $_var_ref = $var_expr;
+        else
+            $_var_ref = substr($var_expr, 1);
+        
+        if(!$_has_math) {
+            
+            // get [foo] and .foo and ->foo and (...) pieces
+            preg_match_all('~(?:^\w+)|' . $this->_obj_params_regexp . '|(?:' . $this->_var_bracket_regexp . ')|->\$?\w+|\.\$?\w+|\S+~', $_var_ref, $match);
+                        
+            $_indexes = $match[0];
+            $_var_name = array_shift($_indexes);
+
+            /* Handle $smarty.* variable references as a special case. */
+            if ($_var_name == 'smarty') {
+                /*
+                 * If the reference could be compiled, use the compiled output;
+                 * otherwise, fall back on the $smarty variable generated at
+                 * run-time.
+                 */
+                if (($smarty_ref = $this->_compile_smarty_ref($_indexes)) !== null) {
+                    $_output = $smarty_ref;
+                } else {
+                    $_var_name = substr(array_shift($_indexes), 1);
+                    $_output = "\$this->_smarty_vars['$_var_name']";
+                }
+            } elseif(is_numeric($_var_name) && is_numeric(substr($var_expr, 0, 1))) {
+                // because . is the operator for accessing arrays thru inidizes we need to put it together again for floating point numbers
+                if(count($_indexes) > 0)
+                {
+                    $_var_name .= implode("", $_indexes);
+                    $_indexes = array();
+                }
+                $_output = $_var_name;
+            } else {
+                $_output = "\$this->_tpl_vars['$_var_name']";
+            }
+
+            foreach ($_indexes as $_index) {
+                if (substr($_index, 0, 1) == '[') {
+                    $_index = substr($_index, 1, -1);
+                    if (is_numeric($_index)) {
+                        $_output .= "[$_index]";
+                    } elseif (substr($_index, 0, 1) == '$') {
+                        if (strpos($_index, '.') !== false) {
+                            $_output .= '[' . $this->_parse_var($_index) . ']';
+                        } else {
+                            $_output .= "[\$this->_tpl_vars['" . substr($_index, 1) . "']]";
+                        }
+                    } else {
+                        $_var_parts = explode('.', $_index);
+                        $_var_section = $_var_parts[0];
+                        $_var_section_prop = isset($_var_parts[1]) ? $_var_parts[1] : 'index';
+                        $_output .= "[\$this->_sections['$_var_section']['$_var_section_prop']]";
+                    }
+                } else if (substr($_index, 0, 1) == '.') {
+                    if (substr($_index, 1, 1) == '$')
+                        $_output .= "[\$this->_tpl_vars['" . substr($_index, 2) . "']]";
+                    else
+                        $_output .= "['" . substr($_index, 1) . "']";
+                } else if (substr($_index,0,2) == '->') {
+                    if(substr($_index,2,2) == '__') {
+                        $this->_syntax_error('call to internal object members is not allowed', E_USER_ERROR, __FILE__, __LINE__);
+                    } elseif($this->security && substr($_index, 2, 1) == '_') {
+                        $this->_syntax_error('(secure) call to private object member is not allowed', E_USER_ERROR, __FILE__, __LINE__);
+                    } elseif (substr($_index, 2, 1) == '$') {
+                        if ($this->security) {
+                            $this->_syntax_error('(secure) call to dynamic object member is not allowed', E_USER_ERROR, __FILE__, __LINE__);
+                        } else {
+                            $_output .= '->{(($_var=$this->_tpl_vars[\''.substr($_index,3).'\']) && substr($_var,0,2)!=\'__\') ? $_var : $this->trigger_error("cannot access property \\"$_var\\"")}';
+                        }
+                    } else {
+                        $_output .= $_index;
+                    }
+                } elseif (substr($_index, 0, 1) == '(') {
+                    $_index = $this->_parse_parenth_args($_index);
+                    $_output .= $_index;
+                } else {
+                    $_output .= $_index;
+                }
+            }
+        }
+
+        return $_output;
+    }
+
+    /**
+     * parse arguments in function call parenthesis
+     *
+     * @param string $parenth_args
+     * @return string
+     */
+    function _parse_parenth_args($parenth_args)
+    {
+        preg_match_all('~' . $this->_param_regexp . '~',$parenth_args, $match);
+        $orig_vals = $match = $match[0];
+        $this->_parse_vars_props($match);
+        $replace = array();
+        for ($i = 0, $count = count($match); $i < $count; $i++) {
+            $replace[$orig_vals[$i]] = $match[$i];
+        }
+        return strtr($parenth_args, $replace);
+    }
+
+    /**
+     * parse configuration variable expression into PHP code
+     *
+     * @param string $conf_var_expr
+     */
+    function _parse_conf_var($conf_var_expr)
+    {
+        $parts = explode('|', $conf_var_expr, 2);
+        $var_ref = $parts[0];
+        $modifiers = isset($parts[1]) ? $parts[1] : '';
+
+        $var_name = substr($var_ref, 1, -1);
+
+        $output = "\$this->_config[0]['vars']['$var_name']";
+
+        $this->_parse_modifiers($output, $modifiers);
+
+        return $output;
+    }
+
+    /**
+     * parse section property expression into PHP code
+     *
+     * @param string $section_prop_expr
+     * @return string
+     */
+    function _parse_section_prop($section_prop_expr)
+    {
+        $parts = explode('|', $section_prop_expr, 2);
+        $var_ref = $parts[0];
+        $modifiers = isset($parts[1]) ? $parts[1] : '';
+
+        preg_match('!%(\w+)\.(\w+)%!', $var_ref, $match);
+        $section_name = $match[1];
+        $prop_name = $match[2];
+
+        $output = "\$this->_sections['$section_name']['$prop_name']";
+
+        $this->_parse_modifiers($output, $modifiers);
+
+        return $output;
+    }
+
+
+    /**
+     * parse modifier chain into PHP code
+     *
+     * sets $output to parsed modified chain
+     * @param string $output
+     * @param string $modifier_string
+     */
+    function _parse_modifiers(&$output, $modifier_string)
+    {
+        preg_match_all('~\|(@?\w+)((?>:(?:'. $this->_qstr_regexp . '|[^|]+))*)~', '|' . $modifier_string, $_match);
+        list(, $_modifiers, $modifier_arg_strings) = $_match;
+
+        for ($_i = 0, $_for_max = count($_modifiers); $_i < $_for_max; $_i++) {
+            $_modifier_name = $_modifiers[$_i];
+
+            if($_modifier_name == 'smarty') {
+                // skip smarty modifier
+                continue;
+            }
+
+            preg_match_all('~:(' . $this->_qstr_regexp . '|[^:]+)~', $modifier_arg_strings[$_i], $_match);
+            $_modifier_args = $_match[1];
+
+            if (substr($_modifier_name, 0, 1) == '@') {
+                $_map_array = false;
+                $_modifier_name = substr($_modifier_name, 1);
+            } else {
+                $_map_array = true;
+            }
+
+            if (empty($this->_plugins['modifier'][$_modifier_name])
+                && !$this->_get_plugin_filepath('modifier', $_modifier_name)
+                && function_exists($_modifier_name)) {
+                if ($this->security && !in_array($_modifier_name, $this->security_settings['MODIFIER_FUNCS'])) {
+                    $this->_trigger_fatal_error("[plugin] (secure mode) modifier '$_modifier_name' is not allowed" , $this->_current_file, $this->_current_line_no, __FILE__, __LINE__);
+                } else {
+                    $this->_plugins['modifier'][$_modifier_name] = array($_modifier_name,  null, null, false);
+                }
+            }
+            $this->_add_plugin('modifier', $_modifier_name);
+
+            $this->_parse_vars_props($_modifier_args);
+
+            if($_modifier_name == 'default') {
+                // supress notifications of default modifier vars and args
+                if(substr($output, 0, 1) == '$') {
+                    $output = '@' . $output;
+                }
+                if(isset($_modifier_args[0]) && substr($_modifier_args[0], 0, 1) == '$') {
+                    $_modifier_args[0] = '@' . $_modifier_args[0];
+                }
+            }
+            if (count($_modifier_args) > 0)
+                $_modifier_args = ', '.implode(', ', $_modifier_args);
+            else
+                $_modifier_args = '';
+
+            if ($_map_array) {
+                $output = "((is_array(\$_tmp=$output)) ? \$this->_run_mod_handler('$_modifier_name', true, \$_tmp$_modifier_args) : " . $this->_compile_plugin_call('modifier', $_modifier_name) . "(\$_tmp$_modifier_args))";
+
+            } else {
+
+                $output = $this->_compile_plugin_call('modifier', $_modifier_name)."($output$_modifier_args)";
+
+            }
+        }
+    }
+
+
+    /**
+     * add plugin
+     *
+     * @param string $type
+     * @param string $name
+     * @param boolean? $delayed_loading
+     */
+    function _add_plugin($type, $name, $delayed_loading = null)
+    {
+        if (!isset($this->_plugin_info[$type])) {
+            $this->_plugin_info[$type] = array();
+        }
+        if (!isset($this->_plugin_info[$type][$name])) {
+            $this->_plugin_info[$type][$name] = array($this->_current_file,
+                                                      $this->_current_line_no,
+                                                      $delayed_loading);
+        }
+    }
+
+
+    /**
+     * Compiles references of type $smarty.foo
+     *
+     * @param string $indexes
+     * @return string
+     */
+    function _compile_smarty_ref(&$indexes)
+    {
+        /* Extract the reference name. */
+        $_ref = substr($indexes[0], 1);
+        foreach($indexes as $_index_no=>$_index) {
+            if (substr($_index, 0, 1) != '.' && $_index_no<2 || !preg_match('~^(\.|\[|->)~', $_index)) {
+                $this->_syntax_error('$smarty' . implode('', array_slice($indexes, 0, 2)) . ' is an invalid reference', E_USER_ERROR, __FILE__, __LINE__);
+            }
+        }
+
+        switch ($_ref) {
+            case 'now':
+                $compiled_ref = 'time()';
+                $_max_index = 1;
+                break;
+
+            case 'foreach':
+                array_shift($indexes);
+                $_var = $this->_parse_var_props(substr($indexes[0], 1));
+                $_propname = substr($indexes[1], 1);
+                $_max_index = 1;
+                switch ($_propname) {
+                    case 'index':
+                        array_shift($indexes);
+                        $compiled_ref = "(\$this->_foreach[$_var]['iteration']-1)";
+                        break;
+                        
+                    case 'first':
+                        array_shift($indexes);
+                        $compiled_ref = "(\$this->_foreach[$_var]['iteration'] <= 1)";
+                        break;
+
+                    case 'last':
+                        array_shift($indexes);
+                        $compiled_ref = "(\$this->_foreach[$_var]['iteration'] == \$this->_foreach[$_var]['total'])";
+                        break;
+                        
+                    case 'show':
+                        array_shift($indexes);
+                        $compiled_ref = "(\$this->_foreach[$_var]['total'] > 0)";
+                        break;
+                        
+                    default:
+                        unset($_max_index);
+                        $compiled_ref = "\$this->_foreach[$_var]";
+                }
+                break;
+
+            case 'section':
+                array_shift($indexes);
+                $_var = $this->_parse_var_props(substr($indexes[0], 1));
+                $compiled_ref = "\$this->_sections[$_var]";
+                break;
+
+            case 'get':
+                $compiled_ref = ($this->request_use_auto_globals) ? '$_GET' : "\$GLOBALS['HTTP_GET_VARS']";
+                break;
+
+            case 'post':
+                $compiled_ref = ($this->request_use_auto_globals) ? '$_POST' : "\$GLOBALS['HTTP_POST_VARS']";
+                break;
+
+            case 'cookies':
+                $compiled_ref = ($this->request_use_auto_globals) ? '$_COOKIE' : "\$GLOBALS['HTTP_COOKIE_VARS']";
+                break;
+
+            case 'env':
+                $compiled_ref = ($this->request_use_auto_globals) ? '$_ENV' : "\$GLOBALS['HTTP_ENV_VARS']";
+                break;
+
+            case 'server':
+                $compiled_ref = ($this->request_use_auto_globals) ? '$_SERVER' : "\$GLOBALS['HTTP_SERVER_VARS']";
+                break;
+
+            case 'session':
+                $compiled_ref = ($this->request_use_auto_globals) ? '$_SESSION' : "\$GLOBALS['HTTP_SESSION_VARS']";
+                break;
+
+            /*
+             * These cases are handled either at run-time or elsewhere in the
+             * compiler.
+             */
+            case 'request':
+                if ($this->request_use_auto_globals) {
+                    $compiled_ref = '$_REQUEST';
+                    break;
+                } else {
+                    $this->_init_smarty_vars = true;
+                }
+                return null;
+
+            case 'capture':
+                return null;
+
+            case 'template':
+                $compiled_ref = "'$this->_current_file'";
+                $_max_index = 1;
+                break;
+
+            case 'version':
+                $compiled_ref = "'$this->_version'";
+                $_max_index = 1;
+                break;
+
+            case 'const':
+                if ($this->security && !$this->security_settings['ALLOW_CONSTANTS']) {
+                    $this->_syntax_error("(secure mode) constants not permitted",
+                                         E_USER_WARNING, __FILE__, __LINE__);
+                    return;
+                }
+                array_shift($indexes);
+                if (preg_match('!^\.\w+$!', $indexes[0])) {
+                    $compiled_ref = '@' . substr($indexes[0], 1);
+                } else {
+                    $_val = $this->_parse_var_props(substr($indexes[0], 1));
+                    $compiled_ref = '@constant(' . $_val . ')';
+                }
+                $_max_index = 1;
+                break;
+
+            case 'config':
+                $compiled_ref = "\$this->_config[0]['vars']";
+                $_max_index = 3;
+                break;
+
+            case 'ldelim':
+                $compiled_ref = "'$this->left_delimiter'";
+                break;
+
+            case 'rdelim':
+                $compiled_ref = "'$this->right_delimiter'";
+                break;
+                
+            default:
+                $this->_syntax_error('$smarty.' . $_ref . ' is an unknown reference', E_USER_ERROR, __FILE__, __LINE__);
+                break;
+        }
+
+        if (isset($_max_index) && count($indexes) > $_max_index) {
+            $this->_syntax_error('$smarty' . implode('', $indexes) .' is an invalid reference', E_USER_ERROR, __FILE__, __LINE__);
+        }
+
+        array_shift($indexes);
+        return $compiled_ref;
+    }
+
+    /**
+     * compiles call to plugin of type $type with name $name
+     * returns a string containing the function-name or method call
+     * without the paramter-list that would have follow to make the
+     * call valid php-syntax
+     *
+     * @param string $type
+     * @param string $name
+     * @return string
+     */
+    function _compile_plugin_call($type, $name) {
+        if (isset($this->_plugins[$type][$name])) {
+            /* plugin loaded */
+            if (is_array($this->_plugins[$type][$name][0])) {
+                return ((is_object($this->_plugins[$type][$name][0][0])) ?
+                        "\$this->_plugins['$type']['$name'][0][0]->"    /* method callback */
+                        : (string)($this->_plugins[$type][$name][0][0]).'::'    /* class callback */
+                       ). $this->_plugins[$type][$name][0][1];
+
+            } else {
+                /* function callback */
+                return $this->_plugins[$type][$name][0];
+
+            }
+        } else {
+            /* plugin not loaded -> auto-loadable-plugin */
+            return 'smarty_'.$type.'_'.$name;
+
+        }
+    }
+
+    /**
+     * load pre- and post-filters
+     */
+    function _load_filters()
+    {
+        if (count($this->_plugins['prefilter']) > 0) {
+            foreach ($this->_plugins['prefilter'] as $filter_name => $prefilter) {
+                if ($prefilter === false) {
+                    unset($this->_plugins['prefilter'][$filter_name]);
+                    $_params = array('plugins' => array(array('prefilter', $filter_name, null, null, false)));
+                    require_once(SMARTY_CORE_DIR . 'core.load_plugins.php');
+                    smarty_core_load_plugins($_params, $this);
+                }
+            }
+        }
+        if (count($this->_plugins['postfilter']) > 0) {
+            foreach ($this->_plugins['postfilter'] as $filter_name => $postfilter) {
+                if ($postfilter === false) {
+                    unset($this->_plugins['postfilter'][$filter_name]);
+                    $_params = array('plugins' => array(array('postfilter', $filter_name, null, null, false)));
+                    require_once(SMARTY_CORE_DIR . 'core.load_plugins.php');
+                    smarty_core_load_plugins($_params, $this);
+                }
+            }
+        }
+    }
+
+
+    /**
+     * Quote subpattern references
+     *
+     * @param string $string
+     * @return string
+     */
+    function _quote_replace($string)
+    {
+        return strtr($string, array('\\' => '\\\\', '$' => '\\$'));
+    }
+
+    /**
+     * display Smarty syntax error
+     *
+     * @param string $error_msg
+     * @param integer $error_type
+     * @param string $file
+     * @param integer $line
+     */
+    function _syntax_error($error_msg, $error_type = E_USER_ERROR, $file=null, $line=null)
+    {
+        $this->_trigger_fatal_error("syntax error: $error_msg", $this->_current_file, $this->_current_line_no, $file, $line, $error_type);
+    }
+
+
+    /**
+     * check if the compilation changes from cacheable to
+     * non-cacheable state with the beginning of the current
+     * plugin. return php-code to reflect the transition.
+     * @return string
+     */
+    function _push_cacheable_state($type, $name) {
+        $_cacheable = !isset($this->_plugins[$type][$name]) || $this->_plugins[$type][$name][4];
+        if ($_cacheable
+            || 0<$this->_cacheable_state++) return '';
+        if (!isset($this->_cache_serial)) $this->_cache_serial = md5(uniqid('Smarty'));
+        $_ret = 'if ($this->caching && !$this->_cache_including): echo \'{nocache:'
+            . $this->_cache_serial . '#' . $this->_nocache_count
+            . '}\'; endif;';
+        return $_ret;
+    }
+
+
+    /**
+     * check if the compilation changes from non-cacheable to
+     * cacheable state with the end of the current plugin return
+     * php-code to reflect the transition.
+     * @return string
+     */
+    function _pop_cacheable_state($type, $name) {
+        $_cacheable = !isset($this->_plugins[$type][$name]) || $this->_plugins[$type][$name][4];
+        if ($_cacheable
+            || --$this->_cacheable_state>0) return '';
+        return 'if ($this->caching && !$this->_cache_including): echo \'{/nocache:'
+            . $this->_cache_serial . '#' . ($this->_nocache_count++)
+            . '}\'; endif;';
+    }
+
+
+    /**
+     * push opening tag-name, file-name and line-number on the tag-stack
+     * @param string the opening tag's name
+     */
+    function _push_tag($open_tag)
+    {
+        array_push($this->_tag_stack, array($open_tag, $this->_current_line_no));
+    }
+
+    /**
+     * pop closing tag-name
+     * raise an error if this stack-top doesn't match with the closing tag
+     * @param string the closing tag's name
+     * @return string the opening tag's name
+     */
+    function _pop_tag($close_tag)
+    {
+        $message = '';
+        if (count($this->_tag_stack)>0) {
+            list($_open_tag, $_line_no) = array_pop($this->_tag_stack);
+            if ($close_tag == $_open_tag) {
+                return $_open_tag;
+            }
+            if ($close_tag == 'if' && ($_open_tag == 'else' || $_open_tag == 'elseif' )) {
+                return $this->_pop_tag($close_tag);
+            }
+            if ($close_tag == 'section' && $_open_tag == 'sectionelse') {
+                $this->_pop_tag($close_tag);
+                return $_open_tag;
+            }
+            if ($close_tag == 'foreach' && $_open_tag == 'foreachelse') {
+                $this->_pop_tag($close_tag);
+                return $_open_tag;
+            }
+            if ($_open_tag == 'else' || $_open_tag == 'elseif') {
+                $_open_tag = 'if';
+            } elseif ($_open_tag == 'sectionelse') {
+                $_open_tag = 'section';
+            } elseif ($_open_tag == 'foreachelse') {
+                $_open_tag = 'foreach';
+            }
+            $message = " expected {/$_open_tag} (opened line $_line_no).";
+        }
+        $this->_syntax_error("mismatched tag {/$close_tag}.$message",
+                             E_USER_ERROR, __FILE__, __LINE__);
+    }
+
+}
+
+/**
+ * compare to values by their string length
+ *
+ * @access private
+ * @param string $a
+ * @param string $b
+ * @return 0|-1|1
+ */
+function _smarty_sort_length($a, $b)
+{
+    if($a == $b)
+        return 0;
+
+    if(strlen($a) == strlen($b))
+        return ($a > $b) ? -1 : 1;
+
+    return (strlen($a) > strlen($b)) ? -1 : 1;
+}
+
+
+/* vim: set et: */
+
+?>