/**
* Fetch configuration and check whether XSLT is properly supported.
* @return boolean True iff XSLT support is present.
*/
static function checkSupport()
{
self::$externalCommand = Config::getVar('cli', 'xslt_command');
self::$externalParameterSnippet = Config::getVar('cli', 'xslt_parameter_option');
// Determine the appropriate XSLT processor for the system
if (self::$externalCommand) {
// check the external command to check for %xsl and %xml parameter substitution
if (strpos(self::$externalCommand, '%xsl') === false) {
return false;
}
if (strpos(self::$externalCommand, '%xml') === false) {
return false;
}
self::$processor = 'External';
} elseif (extension_loaded('xsl') && extension_loaded('dom')) {
// XSL/DOM modules present
self::$processor = 'PHP';
} else {
// no XSLT support
return false;
}
}