How to extract Variables and Method using source code C

D

I need to extract variables e methods in code C. I want export to xml

Code C.

e.g.

include <stdio.h>
char a,b;
int main(void){}
int method1(){} 

XML or similar.

my output:

<"Variable">
   <"Char", "a">
   <"Char", "b">
<"/Variable">

<"method">
   <"main">
   <"method1">
<"/method">

Please, help-me =)