/**
Evaluate template expressions in string
@return mixed
@param $_str string
@public
**/
public static function resolve($_str)
{
// Analyze string for correct framework expression syntax
$_str = preg_replace_callback('/{(' . '(?:' . '(?:' . '@\\w+(?:\\[[^\\]]+\\]|\\.\\w+)*|' . '\'[^\']*\'|"[^"]*"|' . '(?:\\d+\\.)?\\d*(?:e[+\\-]?\\d+)?|' . 'NULL|TRUE|FALSE|' . '\\w+\\h*(?=\\(.*\\))' . ')(?!\\h*[@\\w\'"])|' . '[\\h\\.\\-\\/()+*,%!?=<>|&:]' . ')+' . ')}/i', function ($_expr) {
// Evaluate expression
return eval('return ' . preg_replace_callback('/(?<=@)\\w+(?:\\[[^\\]]+\\]|\\.\\w+)*/', function ($_var) {
$_val = F3::get($_var[0]);
// Retrieve variable contents
return is_object($_val) && !method_exists($_val, '__set_state') ? (string) $_val : var_export($_val, TRUE);
}, preg_replace_callback('/(\\w+)\\h*\\(([^\\)]*)\\)/', function ($_val) {
// Transform empty array to NULL
return $_val[1] . trim($_val[2]) == 'array' ? 'NULL' : (F3::allowed($_val[1]) ? $_val[0] : '\'' . $_val[0] . '\'');
}, $_expr[1])) . ';');
}, $_str);
$_error = preg_last_error();
if ($_error != PREG_NO_ERROR) {
// Display PCRE-specific error message
trigger_error(constant('self::TEXT_PCRE' . $_error));
return FALSE;
}
// Remove control characters except whitespaces
return preg_replace('/[\\x00-\\x08\\x0B\\x0C\\x0E-\\x1F]/', '', $_str);
}
/**
Evaluate template expressions in string
@return mixed
@param $_str string
@public
**/
public static function resolve($_str)
{
// Analyze string for correct framework expression syntax
$_str = preg_replace_callback('/\\{(' . '(?:' . '@\\w+\\b(?:\\[[^\\]]+\\]|\\.\\w+\\b)*|' . '\\w*\\h*[\\(\\,\\)]|' . '[\\h\\?\\.\\+\\-\\*\\/%!=<>&\\|:]|' . '\'[^\']*\'|"[^"]*"|\\d*\\.?\\d+(?:e\\d+)*|' . 'NULL|TRUE|FALSE' . ')+' . ')\\}/i', function ($_expr) {
// Find and replace variables
return eval('return (string)' . preg_replace_callback('/@(\\w+\\b(?:\\[[^\\]]+\\]|\\.\\w+\\b)*)/', function ($_var) {
$_val = F3::get($_var[1]);
// Retrieve variable contents
return !is_object($_val) || method_exists($_val, '__set_state') ? var_export($_val, TRUE) : (string) $_val;
}, preg_replace_callback('/(\\w+)\\h*\\(([^\\)]*)\\)/', function ($_val) {
return $_val[1] . trim($_val[2]) == 'array' ? '\'\'' : (F3::allowed($_val[1]) ? $_val[0] : '\'' . $_val[0] . '\'');
}, $_expr[1])) . ';');
}, (string) $_str);
if (preg_last_error() != PREG_NO_ERROR) {
trigger_error(self::TEXT_PCRELimit);
return FALSE;
}
return $_str;
}
