diff options
Diffstat (limited to 'src/keymap.h')
| -rw-r--r-- | src/keymap.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/src/keymap.h b/src/keymap.h index ec9d4cadbb1..a989f124b14 100644 --- a/src/keymap.h +++ b/src/keymap.h @@ -19,6 +19,16 @@ along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */ #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; @@ -30,6 +40,7 @@ EXFUN (Fdefine_key, 3); 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); |