Write a BNF grammar that describes the structure of a nonterminal called . Assume that contains an optional + sign followed by exactly two decimal digits, the first of which cannot be a 0. Thus 23, +91, and +40 are legal, but 9, +01, and 123 are not. Using your grammar from Exercise 5a, show a parse tree for the value +90.

part 4 and 5

Please help 8. The known Grammar as follows: S à AX X à or AX | ️(epsilon) A à CY Y à and CY | ️(epsilon) C à not C | (S) | 0 | 1 Question C. Please do a stack implementation for strings: (0 or 1) and 1

In this problem you are provided with a CFG/BNF and you are to determine which of the following strings are inside of the described grammar G defined by G={V,E,R,S} where V={ } E={ a, b, c, +, -, *, /, () } R=[ --> + - | --> * | / | --> ( ) | --> a | b | c ] S= 0 (b) a Oa+a*(a) Oa(b) O-b*a/b (b+b) Oa (b+d)-c/a Oa+c+b+a+c-a a +- c

Rewrite the following EBNF grammar in BNF. <decl> → <ident_list> : (int | float | char); <ident_list> → <identifier>{,<identifier}.

Please help me with this Principles of Programming Languages homework Question.   Thanks!

Context-Free Grammar (CFG)

Process Programming Contr New Information Machine Networks Modelling Constraint Computational Learning Resor Complexity Proteins Analysis Software Algorithms Engineering Optimisation Model Foundations Constraints Applications Systems Logic Reasoning Dig Theory Data Refinement Games Search Neural Models Inference

The processor will submit a request that cannot be met in the cache while the write buffer will return a block to the main memory. What are some possible next steps in this scenario?

I need help developing a parser that can take a sentence generated by the context-free grammar and parse it into a parse tree, which can be used to represent the structure of the sentence. Like the example given