Question

I have this much

Code snippet:

int *filePointer;
float *valPtr;

*valPtr = 5.6;

filePointer = ∑

I would like to replace all pointer variables as follows, for example

1. *filePointer have to be converted to *filePointer_p.
2. filePointer have to be converted to filePointer.
3. valPtr have to be converted to valPtr_p

How can I do it using Regular Expression.

Answer 1

It sounds to me like you might be asking how to use regular expressions as a generic tool to rename all pointer variables in source code. I am assuming that the provided snippet is just an example.

If my understanding of your goal is correct, it is not possible to do that with regular expressions. A regular expression would not be able to determine reliably from the context if a variable is a pointer. Consider, for example, a=b;. a and b could be pointers or they could be most anything else. A regular expression by itself would not be able to determine that.