new file mode 100644
--- /dev/null
+++ b/library/smarty/lexer/smarty_internal_configfileparser.y
@@ -0,0 +1,362 @@
+/**
+* Smarty Internal Plugin Configfileparser
+*
+* This is the config file parser
+*
+*
+* @package Smarty
+* @subpackage Config
+* @author Uwe Tews
+*/
+%name TPC_
+%declare_class {
+/**
+* Smarty Internal Plugin Configfileparse
+*
+* This is the config file parser.
+* It is generated from the smarty_internal_configfileparser.y file
+* @package Smarty
+* @subpackage Compiler
+* @author Uwe Tews
+*/
+class Smarty_Internal_Configfileparser
+}
+%include_class
+{
+ /**
+ * result status
+ *
+ * @var bool
+ */
+ public $successful = true;
+ /**
+ * return value
+ *
+ * @var mixed
+ */
+ public $retvalue = 0;
+ /**
+ * @var
+ */
+ public $yymajor;
+ /**
+ * lexer object
+ *
+ * @var Smarty_Internal_Configfilelexer
+ */
+ private $lex;
+ /**
+ * internal error flag
+ *
+ * @var bool
+ */
+ private $internalError = false;
+ /**
+ * compiler object
+ *
+ * @var Smarty_Internal_Config_File_Compiler
+ */
+ public $compiler = null;
+ /**
+ * smarty object
+ *
+ * @var Smarty
+ */
+ public $smarty = null;
+ /**
+ * copy of config_overwrite property
+ *
+ * @var bool
+ */
+ private $configOverwrite = false;
+ /**
+ * copy of config_read_hidden property
+ *
+ * @var bool
+ */
+ private $configReadHidden = false;
+ /**
+ * helper map
+ *
+ * @var array
+ */
+ private static $escapes_single = Array('\\' => '\\',
+ '\'' => '\'');
+
+ /**
+ * constructor
+ *
+ * @param Smarty_Internal_Configfilelexer $lex
+ * @param Smarty_Internal_Config_File_Compiler $compiler
+ */
+ function __construct(Smarty_Internal_Configfilelexer $lex, Smarty_Internal_Config_File_Compiler $compiler)
+ {
+ // set instance object
+ self::instance($this);
+ $this->lex = $lex;
+ $this->smarty = $compiler->smarty;
+ $this->compiler = $compiler;
+ $this->configOverwrite = $this->smarty->config_overwrite;
+ $this->configReadHidden = $this->smarty->config_read_hidden;
+ }
+
+ /**
+ * @param null $new_instance
+ *
+ * @return null
+ */
+ public static function &instance($new_instance = null)
+ {
+ static $instance = null;
+ if (isset($new_instance) && is_object($new_instance)) {
+ $instance = $new_instance;
+ }
+ return $instance;
+ }
+
+ /**
+ * parse optional boolean keywords
+ *
+ * @param string $str
+ *
+ * @return bool
+ */
+ private function parse_bool($str)
+ {
+ $str = strtolower($str);
+ if (in_array($str, array('on', 'yes', 'true'))) {
+ $res = true;
+ } else {
+ $res = false;
+ }
+ return $res;
+ }
+
+ /**
+ * parse single quoted string
+ * remove outer quotes
+ * unescape inner quotes
+ *
+ * @param string $qstr
+ *
+ * @return string
+ */
+ private static function parse_single_quoted_string($qstr)
+ {
+ $escaped_string = substr($qstr, 1, strlen($qstr) - 2); //remove outer quotes
+
+ $ss = preg_split('/(\\\\.)/', $escaped_string, - 1, PREG_SPLIT_DELIM_CAPTURE);
+
+ $str = "";
+ foreach ($ss as $s) {
+ if (strlen($s) === 2 && $s[0] === '\\') {
+ if (isset(self::$escapes_single[$s[1]])) {
+ $s = self::$escapes_single[$s[1]];
+ }
+ }
+ $str .= $s;
+ }
+ return $str;
+ }
+
+ /**
+ * parse double quoted string
+ *
+ * @param string $qstr
+ *
+ * @return string
+ */
+ private static function parse_double_quoted_string($qstr)
+ {
+ $inner_str = substr($qstr, 1, strlen($qstr) - 2);
+ return stripcslashes($inner_str);
+ }
+
+ /**
+ * parse triple quoted string
+ *
+ * @param string $qstr
+ *
+ * @return string
+ */
+ private static function parse_tripple_double_quoted_string($qstr)
+ {
+ return stripcslashes($qstr);
+ }
+
+ /**
+ * set a config variable in target array
+ *
+ * @param array $var
+ * @param array $target_array
+ */
+ private function set_var(Array $var, Array &$target_array)
+ {
+ $key = $var["key"];
+ $value = $var["value"];
+
+ if ($this->configOverwrite || !isset($target_array['vars'][$key])) {
+ $target_array['vars'][$key] = $value;
+ } else {
+ settype($target_array['vars'][$key], 'array');
+ $target_array['vars'][$key][] = $value;
+ }
+ }
+
+ /**
+ * add config variable to global vars
+ *
+ * @param array $vars
+ */
+ private function add_global_vars(Array $vars)
+ {
+ if (!isset($this->compiler->config_data['vars'])) {
+ $this->compiler->config_data['vars'] = Array();
+ }
+ foreach ($vars as $var) {
+ $this->set_var($var, $this->compiler->config_data);
+ }
+ }
+
+ /**
+ * add config variable to section
+ *
+ * @param string $section_name
+ * @param array $vars
+ */
+ private function add_section_vars($section_name, Array $vars)
+ {
+ if (!isset($this->compiler->config_data['sections'][$section_name]['vars'])) {
+ $this->compiler->config_data['sections'][$section_name]['vars'] = Array();
+ }
+ foreach ($vars as $var) {
+ $this->set_var($var, $this->compiler->config_data['sections'][$section_name]);
+ }
+ }
+}
+
+%token_prefix TPC_
+
+%parse_accept
+{
+ $this->successful = !$this->internalError;
+ $this->internalError = false;
+ $this->retvalue = $this->_retvalue;
+}
+
+%syntax_error
+{
+ $this->internalError = true;
+ $this->yymajor = $yymajor;
+ $this->compiler->trigger_config_file_error();
+}
+
+%stack_overflow
+{
+ $this->internalError = true;
+ $this->compiler->trigger_config_file_error("Stack overflow in configfile parser");
+}
+
+// Complete config file
+start(res) ::= global_vars sections. {
+ res = null;
+}
+
+// Global vars
+global_vars(res) ::= var_list(vl). {
+ $this->add_global_vars(vl);
+ res = null;
+}
+
+// Sections
+sections(res) ::= sections section. {
+ res = null;
+}
+
+sections(res) ::= . {
+ res = null;
+}
+
+section(res) ::= OPENB SECTION(i) CLOSEB newline var_list(vars). {
+ $this->add_section_vars(i, vars);
+ res = null;
+}
+
+section(res) ::= OPENB DOT SECTION(i) CLOSEB newline var_list(vars). {
+ if ($this->configReadHidden) {
+ $this->add_section_vars(i, vars);
+ }
+ res = null;
+}
+
+// Var list
+var_list(res) ::= var_list(vl) newline. {
+ res = vl;
+}
+
+var_list(res) ::= var_list(vl) var(v). {
+ res = array_merge(vl, Array(v));
+}
+
+var_list(res) ::= . {
+ res = Array();
+}
+
+
+// Var
+var(res) ::= ID(id) EQUAL value(v). {
+ res = Array("key" => id, "value" => v);
+}
+
+
+value(res) ::= FLOAT(i). {
+ res = (float) i;
+}
+
+value(res) ::= INT(i). {
+ res = (int) i;
+}
+
+value(res) ::= BOOL(i). {
+ res = $this->parse_bool(i);
+}
+
+value(res) ::= SINGLE_QUOTED_STRING(i). {
+ res = self::parse_single_quoted_string(i);
+}
+
+value(res) ::= DOUBLE_QUOTED_STRING(i). {
+ res = self::parse_double_quoted_string(i);
+}
+
+value(res) ::= TRIPPLE_QUOTES(i) TRIPPLE_TEXT(c) TRIPPLE_QUOTES_END(ii). {
+ res = self::parse_tripple_double_quoted_string(c);
+}
+
+value(res) ::= TRIPPLE_QUOTES(i) TRIPPLE_QUOTES_END(ii). {
+ res = '';
+}
+
+value(res) ::= NAKED_STRING(i). {
+ res = i;
+}
+
+// NOTE: this is not a valid rule
+// It is added hier to produce a usefull error message on a missing '=';
+value(res) ::= OTHER(i). {
+ res = i;
+}
+
+
+// Newline and comments
+newline(res) ::= NEWLINE. {
+ res = null;
+}
+
+newline(res) ::= COMMENTSTART NEWLINE. {
+ res = null;
+}
+
+newline(res) ::= COMMENTSTART NAKED_STRING NEWLINE. {
+ res = null;
+}