Question: In all cases means the empty string and S is the Start Symbol 5. (10 pts) Construct an Extended BNF grammar defining identifiers in a

In all cases means the empty string and S is the Start Symbol

5. (10 pts) Construct an Extended BNF grammar defining identifiers in a programming language.

The rules for valid identifiers are:

(i) Identifiers may have at most 10 symbols.

(ii) The symbols include all the alphanumeric characters and underscore.

(iii) A valid identifier must start with a letter or an underscore.

Make sure your grammar is unambiguous.

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