nl_tokens: Add the file extname associated processors .
pl_tokens: function addFileExtnameAssociatedProcessor ( extnames , processorName , existedMap ) { if ( ! extnames ) { return ; } if ( ! Array . isArray ( extnames ) ) { extnames = [ extnames ] ; } extnames . forEach ( k => { k = k . toLowerCase ( ) ; let processors = existedMap [ k ] ; if ( <mask> . isArray ( processors ) ) { processors . push ( processorName ) ; } else if ( processors ) { existedMap [ k ] = [ processors , processorName ] ; } else { existedMap [ k ] = processorName ; } } ) ; }