Your question:

Objectives: The purpose of this assignment is to familiarize you with: ✓ The fundamental concepts of programming paradigms. ✓ The design issues of the various language constructs. ✓ The criteria used for evaluating programming languages and language constructs. ✓ The primary formal method for describing the syntax of programming language-BNF 1. What three extensions are common to most EBNFs?

Assignment Help Answers with Step-by-Step Explanation:

• `{n}` specifies exactly `n` occurrences.

For example, if you have a non-terminal symbol "digit," you can use EBNF to describe a sequence of digits in a number like this:

3. Grouping: EBNF allows you to group elements together using parentheses `(` and `)`. This is useful for specifying the order of operations in complex expressions.

For example, if you want to specify that addition has higher precedence than multiplication in an expression grammar, you can use grouping like this: