新建 文本文档.txt

自上而下语法分析器设计

P pset[]={
		1,$E,{$T,$EP,0,0},//E->TE'
		2,$EP,{$PLUS,$T,$EP,0},
		3,$EP,{0,0,0,0},
		4,$T,{$F,$TP,0,0},
		5,$TP,{$MUL,$F,$TP,0},
		6,$TP,{0,0,0,0},
		7,$F,{$LPAR,$E,$RPAR,0},
		8,$F,{$INT,0,0,0},
		9,$EP,{$MINUS,$T,$EP,0},
		10,$TP,{$DIV,$F,$TP,0},
		0,0,0
};

//LL1分析表,表中元素为产生式的编号
int lltab[5][8] = {
	//  i,+,*,(,),#,-,/
		1,0,0,1,0,0,0,0,   //E
		0,2,0,0,3,3,9,0,   //E'
		4,0,0,4,0,0,0,0,  //T
		0,6,5,0,6,6,6,10,  //T'
		8,0,0,7,0,0,0,0,    //F

};