Change repeat into extended command

include/config.h

@@ -483,13 +483,6 @@ typedef unsigned char uchar;
 #endif
 #endif
 
-/* The "repeat" key used in cmd.c as NHKF_DOAGAIN; if commented out or the
- * value is changed from C('A') to 0, it won't be bound to any keystroke
- * unless you use the run-time configuration file's BIND directive for it.
- * [Note: C() macro isn't defined yet but it will be before DOAGAIN is used.]
- */
-#define DOAGAIN C('A') /* repeat previous command; default is ^A, '\001' */
-
 /* CONFIG_ERROR_SECURE: If user makes NETHACKOPTIONS point to a file ...
  *  TRUE: Show the first error, nothing else.
  *  FALSE: Show all errors as normal, with line numbers and context.

include/decl.h

@@ -443,7 +443,6 @@ struct early_opt {
 /* special key functions */
 enum nh_keyfunc {
     NHKF_ESC = 0,
-    NHKF_DOAGAIN,
 
     NHKF_GETDIR_SELF,
     NHKF_GETDIR_SELF2,

include/extern.h

@@ -227,6 +227,7 @@ extern int do_reqmenu(void);
 extern int do_rush(void);
 extern int do_run(void);
 extern int do_fight(void);
+extern int do_repeat(void);
 extern char randomkey(void);
 extern void random_response(char *, int);
 extern int rnd_extcmd_idx(void);