In some languages, it is expected that a function declaration be terminated by syntax that includes the function name. For example, in MODULA-2, a function is declared as shown below:
PROCEDURE P ;
END P ;
Is it possible to verify such a requirement using a syntax analyzer? If yes, explain how to do it. If not, provide an alternative explanation.
From what I understand, this part should be the job of semantic analysis, something like verifying the scope of variables, particularly that of "P," and in general, I believe the answer should be no. Well, I don't see how in the process of syntax analysis, this part can be verified. For example, if we generate the syntax analysis tree or parse tree, one way we could verify that the termination of the function is correct is by ensuring that there are at least 2 derivations to reach the leaves where "P" would be, but this wouldn't necessarily indicate that this is correct. For instance, if there were recursion or another call to "P" in the code block, the idea wouldn't work.
and well jeje,and ... how would the syntax analysis tree be? I've tried to do it, but what I'm doing doesn't make much sense. Any ideas on how I could guide myself to do it?"
thanks for your time