outfilea.txt

一个编译原理的词法分析程序,功能都已经完备了,可以从文件读入,输出分析完成的各个词

关键字 符号 标识符 数字
  0      1     2    3  
err of upper: (0,"VAR")
(2,"tmp1")
(1,",")
(2,"AB")
(1,",")
(2,"c123")
(1,":")
err of upper: (0,"INTEGER")
(1,";")
err of upper: (0,"BEGIN")
(2,"tmp1")
(1,":")
(1,"=")
(3,"123")
(1,"*")
(3,"23")
(1,"+")
(3,"93")
(1,"*")
(3,"5")
(1,";")
(2,"AB")
(1,":")
(1,"=")
(1,"(")
(2,"tmp1")
(1,"+")
(3,"5")
(1,")")
(1,"*")
(2,"tmp1")
(1,";")
(2,"c123")
(1,":")
(1,"=")
(2,"AB")
(1,"+")
(2,"tmp1")
(1,";")
err of upper: (0,"IF")
(2,"c123")
(1,"*")
(2,"AB")
(1,">=")
(2,"tmp1")
(1,"+")
(3,"12")
err of upper: (0,"THEN")
err of upper: (0,"WHILE")
(2,"c123")
(1,"+")
(2,"AB")
(1,">")
(3,"10")
err of upper: (0,"DO")
err of upper: (0,"BEGIN")
(2,"tmp1")
(1,":")
(1,"=")
(2,"c123")
(1,";")
err of upper: (0,"PROCEDURE")
(2,"proc23CE")
(1,"(")
(2,"a1")
(1,",")
(2,"b2c")
(1,")")
(1,";")
err of upper: (0,"BEGIN")
err of upper: (0,"PROCEDURE")
(2,"proc34T")
(1,";")
err of upper: (0,"BEGIN")
(2,"AB")
(1,":")
(1,"=")
(3,"324")
(1,"*")
(2,"c123")
(1,";")
err of upper: (0,"END")
err of upper: (0,"END")
err of upper: (0,"END")
err of upper: (0,"ELSE")
err of upper: (0,"IF")
(3,"10")
(1,">")
(3,"12")
err of upper: (0,"THEN")
(2,"c123")
(1,":")
(1,"=")
(3,"10")
(1,";")
err of upper: (0,"ELSE")
(2,"tmp1")
(1,":")
(1,"=")
(2,"c123")
(1,";")