I have a question about how to match the following left-recursive rules. R=Er E=Ee/Eb/e
String 'ebr' will R match 'eebr' R=Er E=Ee/e/Eb String 'ebr' will R match 'eebr' -- 此致 礼 罗勇刚 Yours sincerely, Yonggang Luo
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