XL语言编译器





XL语言的词汇:



EOI : 输入结束

SEMI: 匹配单个字符

PLUS: 匹配单个字符 +

TIMES: 匹配单个字符 *

LP: 匹配单个字符 (

RP: 匹配单个字符 )

NUM_OR_ID: 匹配十进制整数或标识符-XL Compiler XL language vocabulary: EOI: input end of the SEMI: matches a single character '　'　PLUS: matches a single character '+'　TIMES: Matches a single character '*'　LP: matches a single character ' ('　RP: Match single character ' )'　NUM_OR_ID: Match decimal integer or identifier