array(), 'functions' => array() ); $GLOBALS['__XML_ARGUMENTS'] = array(); // Handle it over to the parser parseXmlData($templateContent); // Call the call-back function doCallXmlCallbackFunction(); } else { // Template not found displayMessage('{%message,XML_TEMPLATE_404=' . $template . '%}'); } } // Parses the XML content function parseXmlData ($content) { // Do we have recode? if (function_exists('recode')) { // Convert 'HTML' to UTF-8 $content = recode('html..utf8', $content); } else { // No fallback ATM debug_report_bug('PHP extension recode is missing. Please install it.'); } // Create a new XML parser $xmlParser = xml_parser_create(); // Force case-folding to on xml_parser_set_option($xmlParser, XML_OPTION_CASE_FOLDING, true); // Set UTF-8 xml_parser_set_option($xmlParser, XML_OPTION_TARGET_ENCODING, 'UTF-8'); // Set handler call-backs xml_set_element_handler($xmlParser, 'startXmlElement', 'endXmlElement'); xml_set_character_data_handler($xmlParser, 'xmlCharacterHandler'); // Now parse the XML tree if (!xml_parse($xmlParser, $content)) { // Error found in XML! //* DEBUG: */ die('
'.htmlentities($content).'
'); debug_report_bug(__FUNCTION__, __LINE__, 'Error found in XML. errorMessage=' . xml_error_string(xml_get_error_code($xmlParser)) . ', line=' . xml_get_current_line_number($xmlParser)); } // END - if // Free the parser xml_parser_free($xmlParser); } // Calls the found call-back function function doCallXmlCallbackFunction () { // Loop through all added entries foreach ($GLOBALS['__XML_CALLBACKS']['callbacks'] as $callback) { // Do we have the entry? if ((isset($GLOBALS['__XML_CALLBACKS']['functions'][$callback])) && (isset($GLOBALS['__XML_ARGUMENTS'][$callback]))) { // Run all function callbacks foreach ($GLOBALS['__XML_CALLBACKS']['functions'][$callback] as $function) { // Trim all function names $function = trim($function); // If the function is empty, simply skip to the (maybe) next one if (empty($function)) { // Skip this continue; } // END - if // Now construct the call-back function's name with 'Execute' at the end $callbackName = $callback . 'Execute'; // Is it there? if (!function_exists($callbackName)) { debug_report_bug(__FUNCTION__, __LINE__, 'callback=' . $callback . ',function=' . $function . 'arguments()=' . count($GLOBALS['__XML_ARGUMENTS'][$callback]) . ' - execute call-back not found.'); } // END - if // Call it call_user_func_array($callbackName, array($function, $GLOBALS['__XML_ARGUMENTS'][$callback])); } // END - foreach } else { // Not found debug_report_bug(__FUNCTION__, __LINE__, 'Entry in callbacks does exist, but not in functions, callback= ' . $callback); } } // END - foreach } //----------------------------------------------------------------------------- // Call-back functions for XML parser //----------------------------------------------------------------------------- // Starts an element function startXmlElement ($resource, $element, $attributes) { // Call-back function for given element $elementCallback = 'doXml' . capitalizeUnderscoreString($element); // Is the call-back function there? if (!function_exists($elementCallback)) { // Not there debug_report_bug(__FUNCTION__, __LINE__, 'Missing call-back function ' . $elementCallback . ', please add it.'); } // END - if // Call the call-back function call_user_func_array($elementCallback, array($resource, $attributes)); } // Ends an element function endXmlElement ($resource, $element) { // Out-of-function for now } // Handle characters function xmlCharacterHandler ($resource, $characters) { // Trim spaces away $characters = trim($characters); // Do we have some to handle? if (strlen($characters) == 0) { // Nothing to handle return; } // END - if // @TODO Handle characters die(__FUNCTION__ . ':characters[]='.strlen($characters)); } // Checks if given type is valid, makes all lower-case function isInvalidXmlType ($type) { // All lower-case $type = strtolower(trim($type)); // Is it found? return (in_array($type, array('string', 'array', 'bool', 'int', 'callback'))); } // Checks if given condition is valid function isXmlConditionValid ($condition) { // Trim and make lower-case $condition = trim(strtolower($condition)); // Is it valid? return (in_array($condition, array('equals'))); } // Checks if given value is valid/verifyable function isXmlValueValid ($type, $value) { // Depends on type, so build a call-back $callbackFunction = 'isXmlType' . trim(capitalizeUnderscoreString($type)); // Is the call-back function there? if (!function_exists($callbackFunction)) { // Not there debug_report_bug(__FUNCTION__, __LINE__, 'Missing call-back function ' . $callbackFunction . ', please add it.'); } // END - if // Call and return it return call_user_func_array($callbackFunction, array($value)); } // Converts given condition into a symbol function convertXmlContion ($condition) { // Default is an invalid one $return = '???'; // Detect the condition again switch ($condition) { case 'EQUALS': // Equals $return = '='; break; default: // Unknown condition debug_report_bug(__FUNCTION__, __LINE__, 'Condition ' . $condition . ' is unknown/unsupported.'); break; } // END - switch // Return it return $return; } // "Getter" for sql part back from given array function getSqlPartFromXmlArray ($columns) { // Init SQL $SQL = ''; // Walk through all entries foreach ($columns as $columnArray) { // Init SQL part $sqlPart = ''; // Do we have a table/alias if (!empty($columnArray['table'])) { // Pre-add it $sqlPart .= $columnArray['table'] . '.'; } // END - if // Add column $sqlPart .= '`' . $columnArray['column'] . '`'; // Is a function and alias set? if ((!empty($columnArray['function'])) && (!empty($columnArray['alias']))) { // Add both $sqlPart = $columnArray['function'] . '(' . $sqlPart . ') AS `' . $columnArray['alias'] . '`'; } // END - if // Add finished SQL part to the query $SQL .= $sqlPart . ','; } // END - foreach // Return it without last commata return substr($SQL, 0, -1); } // Searches in given XML array for value and returns the parent index function searchXmlArray ($value, $columns, $childKey) { // Default is not found $return = false; // Walk through whole array foreach ($columns as $key => $columnArray) { // Make sure the element is there assert(isset($columnArray[$childKey])); // Now is it what we are looking for? if ($columnArray[$childKey] == $value) { // Remember this match $return = $key; // And abort any further searches break; } // END - foreach } // END - foreach // Return key/false return $return; } // [EOF] ?>