Function            getc_match - get specific input, case dependent

  Syntax              char getc_match(boolean output, char *match);

  Prototype in        keyboard.h

  Remarks             getc_match accepts character input (via getk())
                      until one of the characters in the string match in
                      entered, case dependent ('a' != 'A'). Extended keys
                      never match (F10 will never be a match.) If output
                      = TRUE, the character is echoed to the screen via
                      putk().

  Return value        returns the key pressed.

  See also            getci_match(), getk(), getlogical(), getyn()

  Example             #include <keyboard.h>

                      main()
                      {
                           printf("Enter your choice (abcdHJ): ");
                           getc_match(1,"abcdHJ");
                      }

  Program output      Enter your choice (abcdHJ): H