+// Private function to determine wether we have a special expression function avaible
+// (mostly located in wrapper-functions.php)
+function isExpressionFunctionAvaiable ($data) {
+ // Get the enty we need
+ $entry = $data['matches'][4][$data['key']];
+
+ // Do we have cache?
+ if (!isset($GLOBALS['expression_function_available'][$entry])) {
+ // Init function name
+ $functionName = 'get';
+
+ // Explode it in an array
+ foreach (explode('_', $entry) as $piece) {
+ // Add non-empty parts
+ if (!empty($piece)) {
+ // Add it
+ $functionName .= capitalizeUnderscoreString($piece);
+ } // END - if
+ } // END - foreach
+
+ // Is that function there?
+ if (function_exists($functionName)) {
+ // Cache it all
+ $GLOBALS['expression_function_name'][$entry] = $functionName;
+ $GLOBALS['expression_function_available'][$entry] = true;
+ } else {
+ // Not avaiable
+ logDebugMessage(__FUNCTION__, __LINE__, 'Expression function ' . $functionName . ' not found. Please consider adding it to improve execution speed.');
+
+ // And cache it
+ $GLOBALS['expression_function_available'][$entry] = false;
+ }
+ } elseif ($GLOBALS['expression_function_available'][$entry] == false) {
+ // Debug message
+ logDebugMessage(__FUNCTION__, __LINE__, 'Expression function for entry ' . $entry . ' requested but not found.');
+ }
+
+ // Return cache
+ return $GLOBALS['expression_function_available'][$entry];
+}
+
+// Getter for above expression function
+function getExpressionFunction ($data) {
+ // Get the enty we need
+ $entry = $data['matches'][4][$data['key']];
+
+ // Return it
+ return $GLOBALS['expression_function_name'][$entry];
+}
+