#define	CSEGSIZE	(512-2*sizeof(int)) typedef struct Code{	struct Code	*prev;	char	*firstFree;	char	segment[CSEGSIZE];}Code; Code	*CodeStoreChar(Code*, char);Code	*CodeGetBlock(void);void	CodeFreeBlock(Code*);Code	*CodeStoreString(Code*, char*);Code	*CodeAppend(Code*, Code*);void	CodeWrite(Biobuf*, Code*);Code	*CodeMarkLine(Code*, int);