lex.pl0

来自「编译实验的源程序代码 比较简单」· PL0 代码 · 共 13 行

PROGRAM CONST VAR PROCEDURE
BEGIN END GALL DO ODD
WHILE WRITE READ IF THEN 
ELSE REPEAT DOWHILE RETURN
ABCDEFGHIJKLMNOPQISTUVWSYZ
ABCDEFGHIJ
ABC1234567890 A2S3
A1 Z9 C AZ
0 1 9 12 12345 1234567890
+= ++ -- -= # <>
+ - * / = <= >= := () , ;
8B ELSE 
END.