#ifndef KEYMAP_H
#define KEYMAP_H
+/* The maximum byte size consumed by push_key_description.
+ All callers should assure that at least this size of memory is
+ allocated at the place pointed by the second argument.
+
+ There are 6 modifiers, each consumes 2 chars.
+ The octal form of a character code consumes
+ (1 + CHARACTERBITS / 3 + 1) chars (including backslash at the head).
+ We need one more byte for string terminator `\0'. */
+#define KEY_DESCRIPTION_SIZE ((2 * 6) + 1 + (CHARACTERBITS / 3) + 1 + 1)
+
#define KEYMAPP(m) (!NILP (get_keymap (m, 0, 0)))
extern Lisp_Object Qkeymap, Qmenu_bar;
extern Lisp_Object Qremap;
EXFUN (Fcommand_remapping, 3);
EXFUN (Fkey_binding, 4);
EXFUN (Fkey_description, 2);
+extern char *push_key_description (EMACS_INT, char *, int);
EXFUN (Fsingle_key_description, 2);
EXFUN (Fwhere_is_internal, 5);
EXFUN (Fcurrent_active_maps, 2);