1.src

编译工作台 是本人编写的用于编译原理教学的工具

//这是一个pascal源文件

prog id ( id , id ) semi
var
	id , id : array [ digits .. digits ] of integer semi
	id : real semi

function id ( id , id : array [ digits .. digits ] of real semi id : integer ) : real semi
begin
	id assignop num
end semi

procedure id semi
begin
	if id relop id then
	begin
		while id relop id do
		begin
			id ( id , id , id ) semi
			id assignop id mulop num
		end
	end
	else
		id ( id , id , id )
end semi

begin
	id assignop ( id addop id ) mulop id addop id semi
	id ( id , id ) semi
	if id relop id then id ( id , id ) else id ( id , id ) semi
	while id relop id do
	begin
		id assignop id semi
		id ( id )
	end
end