nl_tokens: Creates a function which checks whether or not a given file should be ignored .
pl_tokens: function parseWhiteList ( files ) { if ( ! files || ! Array . isArray ( files ) ) { return null } const ig = ignore ( ) const igN = ignore ( ) let hasN = false for ( const file of files ) { if ( typeof file === "string" && file ) { const body = file . replace ( SLASH_AT_BEGIN_AND_END , "" ) if ( file . startsWith ( "!" ) ) { igN . <mask> ( ` ${ body } ` ) igN . add ( ` ${ body } ` ) hasN = true } else { ig . add ( ` ${ body } ` ) ig . add ( ` ${ body } ` ) } } } return hasN ? or ( ig . createFilter ( ) , not ( igN . createFilter ( ) ) ) : ig . createFilter ( ) }