CODEWITHSUNDEEP
cperlparsing
chaitu
chaitu

Reputation: 1206

Is there any way to parse to C program files using perl

I want to parse C program files (.c extension) using perl. I want the parsing to be done in such a fashion like a sample c program may contain statement like 

printf ("%d => Hello",x);

let x be a integer variable in the program. So when i parse the above line, is there any way of getting x value. Remember, i want to parse only one line and get the value of x, i cant parse any previous lines to obtain the value of x. Is there any way to obtain the actual value of x dynamically or is it better to parse object files.

Upvotes: 2

Views: 810

Answers (2)

Asherah
Asherah

Reputation: 19347

No. Think about it:

int x = rand();
printf("%d", x);

How could you possibly know what x is without running the program?

Upvotes: 7

MByD
MByD

Reputation: 137322

There is no tool in the world that may reliably find the value of x using the line printf ("%d => Hello",x); only. The value depends on previous lines, and maybe on user input, which is not in the source code at all.

Edit

On the other hand, there are a lot of tools that work with C code, such as static analyzers, debuggers, interpreters and so on. You might want to look for one of those options.

Upvotes: 10

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