func Open(file string) (*Reader, error) {
	// TODO: Deal with closing file.
	f, err := os.Open(file)
	if err != nil {
		return nil, err
	}
	fi, err := f.Stat()
	if err != nil {
		f.Close()
		return nil, err
	}
	return NewReader(f, fi.Size())
}
func Open(file string) (*Reader, error) {
	
	f, err := os.Open(file)
	if err != nil {
		return nil, err
	}
	fi, err := f.Stat()
	if err != nil {
		f.Close()
		return nil, err
	}
	return NewReader(f, fi.Size())
}
func Open ( file string ) ( * Reader , error ) { // TODO: Deal with closing file. f , err := os . Open ( file ) if err != nil { return nil , err } fi , err := f . Stat ( ) if err != nil { f . Close ( ) return nil , err } return NewReader ( f , fi . Size ( ) ) }
// Open opens a file for reading.
Open opens a file for reading .