/************************************************************* file: common.h* date: 2006-03-28* author: wuzuyang* describe: none;*************************************************************/#ifndef COMMON_H#define COMMON_Htypedef enum{	ERROR, UNKNOWN,	LEXER_DONE,	// success!	IF, THEN, ELSE, WHILE, DO, BEGIN, END,	//9	ID, NUM,	//11	AND, OR,	LT, LE, GT, GE, EQ,	//18	ASSIGN, PLUS, MINUS, MUL, DIV,	//23	LP, RP, SEMI}TokenType;typedef struct{	TokenType type;	char *name;}Token;typedef enum{	INERROR,	START,	DONE,	INID,	INNUM,	INLE,	// LT & LE	INGE,	// GT & GE	INEQ,	// EQ & ASSIGN	INCOMMENT}ScannerState;typedef enum{	ST_ERROR,	ST_NORMAL,	// undefined, but not error	ST_EXP,	// expression	ST_IF, ST_THEN, ST_WHILE, ST_ASSIGN, ST_BEGIN}StatementType;#endif