Macro question regarding single quotes

[Richard Harvey Chapman <hchapman-gcc-help@xxxxxxxx>]

I'd like to shorten-up so redundant code in a switch statement by using 
a macro for each case. The following code illustrates the problem. In 
short, is there a way to write the PARSE(a,b) macro that will work in 
the manner shown below?


Thanks,

H.

========

#include <stdio.h>

int varAB = 1;
int varFG = 2;

#define TEST1(a,b)  printf("'%c' '%c' = %d\n", *#a, *#b, var##a##b)
#define TEST2(a,b)  printf("'%c' '%c' = %d\n", #a[0], #b[0], var##a##b)

int ParseAB(void) { return(0); }
int ParseCD(void) { return(0); }
int ParseEF(void) { return(0); }

// * not allowed in case statement
#define PARSE(a,b)   case (*#a << 8) | *#b: \
                      status = Parse##a##b();     \
                      break

// ends up being literally 'a' and 'b'
#define PARSE2(a,b)   case ('a' << 8) | 'b': \
                       status = Parse##a##b();     \
                       break

int main()
{
 int status = 0;

 TEST1(A,B);
 TEST2(F,G);

 switch (('A' << 8) | 'B')
 {
 // This is what the output of the PARSE macro should be:
 case ('A' << 8) | 'B':
   status = ParseAB();
   break;

 // This is how I'd like to use the macro.
 PARSE(C,D);
 PARSE(E,F);

 default:
   status = -1;
 }

 return(0);
}