Define the non-terminal using regular expression to represent inte- ger (may be positive or negative). For negative integers, use ~ for minus sign. You will use it the later questions. The question above is the one i need answered, i am just adding the questions below in order to possibly help in creating an answer that will be used in the later questions(the ones below) Define a BNF grammar for a list of integers, where empty list is [] and non-empty lists look like [1], [1, 3], [1,2,4], or [~2, 5, 7] etc. Define a BNF grammar for a list of integers using nil and ::. For example, 2::2::~3::nil is a list consisting of 2, 2, ~3

Computer Networking: A Top-Down Approach (7th Edition)
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Author:James Kurose, Keith Ross
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Define the non-terminal <Int> using regular expression to represent inte-
ger (may be positive or negative). For negative integers, use ~ for minus
sign. You will use it the later questions.

The question above is the one i need answered, i am just adding the questions below in order to possibly help in creating an answer that will be used in the later questions(the ones below)


Define a BNF grammar for a list of integers, where empty list is [] and
non-empty lists look like [1], [1, 3], [1,2,4], or [~2, 5, 7] etc.
Define a BNF grammar for a list of integers using nil and ::. For example,
2::2::~3::nil is a list consisting of 2, 2, ~3. 

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