def _fix(self, fmt='<STR_LIT:i>'):
fmt = self.endian + fmt<EOL>fix = self.read(struct.calcsize(fmt))<EOL>if fix:<EOL><INDENT>return struct.unpack(fmt, fix)[<NUM_LIT:0>]<EOL><DEDENT>else:<EOL><INDENT>raise EOFError<EOL><DEDENT>
Read pre- or suffix of line at current position with given
format `fmt` (default 'i').