Question

find the match alone answer
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Answer 1

Explanation:

A sentence containing a single dot marks the end of the required portion of a file. It may or may not be the EOF. If I use flex and bison to parse this file, how can I match this line using some regular expression? Or is there some other way? I cannot use "." in Flex grammar as it can come anywhere in any portion, may be as a part of some word, mail id, etc.