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Describe the capabilities of CFG.

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By Dipali Umre

  1. Describing Programming Languages: CFG is like a set of rules that help us describe how sentences (or in this case, code) are structured in programming languages. It’s a tool that programmers and language designers use to define the syntax of programming languages.
  2. Automatic Parser Construction: With a well-designed CFG, we can create parsers – which are programs that analyze code and make sense of its structure – automatically. This means if we have a CFG for a programming language, we can build tools to check if code follows the rules of that language without needing to do it manually.
  3. Handling Expressions: CFGs can also handle expressions in programming languages. This means they can help us understand things like arithmetic operations or logical comparisons. CFGs can even consider things like the order of operations (like multiplication before addition) and parentheses in expressions.
  4. Dealing with Nested Structures: CFGs are handy for describing nested structures in code. For example, they can help us ensure that for every open parenthesis, there’s a corresponding closing one, or that each ‘if’ statement has a corresponding ‘else’. Essentially, CFGs help us manage the complexity of programming languages by describing how different parts of the code fit together.
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