output.txt

词法分析,里面有一个bug,")"后面不能跟其他符号,但是这个更像是自己作的,程序很简单,我自己做了大修改,加了很多注释

请输入文件名:
input.txt
*********************************
             词法分析
*********************************
(13,0)   program
**error**
标识符长度溢出!
(24,0)   ;
(18,0)   var
(21,1)   m
(25,0)   :
(9,0)   integer
(24,0)   ;
(7,0)   function
(21,2)   fib
(27,0)   (
(21,3)   n
(25,0)   :
(9,0)   integer
(28,0)   )
(25,0)   :
(9,0)   integer
(24,0)   ;
(1,0)   begin
(8,0)   if
(21,3)   n
(38,0)   =
(22,0)   0
(5,0)   else
(8,0)   if
(21,3)   n
(38,0)   =
(22,1)   1
(16,0)   then
(21,2)   fib
(44,0)   :=
(5,0)   else
(21,2)   fib
(27,0)   (
(21,3)   n
(35,0)   -
(22,1)   1
(28,0)   )
(34,0)   +
(21,2)   fib
(27,0)   (
(21,3)   n
(35,0)   -
(22,2)   2
(28,0)   )
(6,0)   end
(24,0)   ;
(1,0)   begin
(14,0)   read
(27,0)   (
(21,1)   m
(28,0)   )
(24,0)   ;
(20,0)   write
(27,0)   (
(21,1)   m
(28,0)   )
(28,0)   )
(6,0)   end
(26,0)   .