regex 2 match C function

[jai]

hi, can anyone give me the regex to match C-style functions. given a C source file, the regex should match all the C functions and add a header b4 the function. the functions may be of the form

int 
function(int a, char *b) {
 ... 
 return 0;
}

the regex should match:

int
function(int a, char *b)

and print:

------------------------------------------------------
/* Function : function()
      Input:
        int a :
        char *b:
      
      Output:
        int :
 
     Author :
     Date :
*/

int
function(int a, char *b)
-----------------------------------------------------------

thanks -jai