You should have received a copy of the GNU General Public License
along with GNU Emacs; see the file COPYING. If not, write to
-the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
+the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA. */
#include <config.h>
#endif /* 0 */
DEFUN ("keymapp", Fkeymapp, Skeymapp, 1, 1, 0,
- "Return t if ARG is a keymap.\n\
+ "Return t if OBJECT is a keymap.\n\
\n\
A keymap is a list (keymap . ALIST),\n\
or a symbol whose function definition is itself a keymap.\n\
{
return get_keymap_1 (object, 1, 0);
}
+\f
+/* Return the parent map of the keymap MAP, or nil if it has none.
+ We assume that MAP is a valid keymap. */
+
+DEFUN ("keymap-parent", Fkeymap_parent, Skeymap_parent, 1, 1, 0,
+ "Return the parent keymap of KEYMAP.")
+ (keymap)
+ Lisp_Object keymap;
+{
+ Lisp_Object list;
+
+ keymap = get_keymap_1 (keymap, 1, 1);
+
+ /* Skip past the initial element `keymap'. */
+ list = XCONS (keymap)->cdr;
+ for (; CONSP (list); list = XCONS (list)->cdr)
+ {
+ /* See if there is another `keymap'. */
+ if (EQ (Qkeymap, XCONS (list)->car))
+ return list;
+ }
+
+ return Qnil;
+}
+
+/* Set the parent keymap of MAP to PARENT. */
+
+DEFUN ("set-keymap-parent", Fset_keymap_parent, Sset_keymap_parent, 2, 2, 0,
+ "Modify KEYMAP to set its parent map to PARENT.\n\
+PARENT should be nil or another keymap.")
+ (keymap, parent)
+ Lisp_Object keymap, parent;
+{
+ Lisp_Object list, prev;
+ int i;
+
+ keymap = get_keymap_1 (keymap, 1, 1);
+ if (!NILP (parent))
+ parent = get_keymap_1 (parent, 1, 1);
+
+ /* Skip past the initial element `keymap'. */
+ prev = keymap;
+ while (1)
+ {
+ list = XCONS (prev)->cdr;
+ /* If there is a parent keymap here, replace it.
+ If we came to the end, add the parent in PREV. */
+ if (! CONSP (list) || EQ (Qkeymap, XCONS (list)->car))
+ {
+ /* If we already have the right parent, return now
+ so that we avoid the loops below. */
+ if (EQ (XCONS (prev)->cdr, parent))
+ return parent;
+
+ XCONS (prev)->cdr = parent;
+ break;
+ }
+ prev = list;
+ }
+
+ /* Scan through for submaps, and set their parents too. */
+
+ for (list = XCONS (keymap)->cdr; CONSP (list); list = XCONS (list)->cdr)
+ {
+ /* Stop the scan when we come to the parent. */
+ if (EQ (XCONS (list)->car, Qkeymap))
+ break;
+
+ /* If this element holds a prefix map, deal with it. */
+ if (CONSP (XCONS (list)->car)
+ && CONSP (XCONS (XCONS (list)->car)->cdr))
+ fix_submap_inheritance (keymap, XCONS (XCONS (list)->car)->car,
+ XCONS (XCONS (list)->car)->cdr);
+
+ if (VECTORP (XCONS (list)->car))
+ for (i = 0; i < XVECTOR (XCONS (list)->car)->size; i++)
+ if (CONSP (XVECTOR (XCONS (list)->car)->contents[i]))
+ fix_submap_inheritance (keymap, make_number (i),
+ XVECTOR (XCONS (list)->car)->contents[i]);
+ }
+
+ return parent;
+}
+
+/* EVENT is defined in MAP as a prefix, and SUBMAP is its definition.
+ if EVENT is also a prefix in MAP's parent,
+ make sure that SUBMAP inherits that definition as its own parent. */
+
+fix_submap_inheritance (map, event, submap)
+ Lisp_Object map, event, submap;
+{
+ Lisp_Object map_parent, parent_entry;
+
+ /* SUBMAP is a cons that we found as a key binding.
+ Discard the other things found in a menu key binding. */
+ if (CONSP (submap)
+ && STRINGP (XCONS (submap)->car))
+ {
+ submap = XCONS (submap)->cdr;
+ /* Also remove a menu help string, if any,
+ following the menu item name. */
+ if (CONSP (submap) && STRINGP (XCONS (submap)->car))
+ submap = XCONS (submap)->cdr;
+ /* Also remove the sublist that caches key equivalences, if any. */
+ if (CONSP (submap)
+ && CONSP (XCONS (submap)->car))
+ {
+ Lisp_Object carcar;
+ carcar = XCONS (XCONS (submap)->car)->car;
+ if (NILP (carcar) || VECTORP (carcar))
+ submap = XCONS (submap)->cdr;
+ }
+ }
+
+ /* If it isn't a keymap now, there's no work to do. */
+ if (! CONSP (submap)
+ || ! EQ (XCONS (submap)->car, Qkeymap))
+ return;
+
+ map_parent = Fkeymap_parent (map);
+ if (! NILP (map_parent))
+ parent_entry = access_keymap (map_parent, event, 0, 0);
+ else
+ parent_entry = Qnil;
+ /* If MAP's parent has something other than a keymap,
+ our own submap shadows it completely, so use nil as SUBMAP's parent. */
+ if (! (CONSP (parent_entry) && EQ (XCONS (parent_entry)->car, Qkeymap)))
+ parent_entry = Qnil;
+
+ if (! EQ (parent_entry, submap))
+ Fset_keymap_parent (submap, parent_entry);
+}
+\f
/* Look up IDX in MAP. IDX may be any sort of event.
Note that this does only one level of lookup; IDX must be a single
event, not a sequence.
val = XCONS (binding)->cdr;
if (noprefix && CONSP (val) && EQ (XCONS (val)->car, Qkeymap))
return Qnil;
+ if (CONSP (val))
+ fix_submap_inheritance (map, idx, val);
return val;
}
if (t_ok && EQ (XCONS (binding)->car, Qt))
val = XVECTOR (binding)->contents[XFASTINT (idx)];
if (noprefix && CONSP (val) && EQ (XCONS (val)->car, Qkeymap))
return Qnil;
+ if (CONSP (val))
+ fix_submap_inheritance (map, idx, val);
return val;
}
}
make it a prefix in this map, and make its definition
inherit the other prefix definition. */
inherit = access_keymap (keymap, c, 0, 0);
+#if 0
+ /* This code is needed to do the right thing in the following case:
+ keymap A inherits from B,
+ you define KEY as a prefix in A,
+ then later you define KEY as a prefix in B.
+ We want the old prefix definition in A to inherit from that in B.
+ It is hard to do that retroactively, so this code
+ creates the prefix in B right away.
+
+ But it turns out that this code causes problems immediately
+ when the prefix in A is defined: it causes B to define KEY
+ as a prefix with no subcommands.
+
+ So I took out this code. */
if (NILP (inherit))
{
/* If there's an inherited keymap
if (!NILP (tail))
inherit = define_as_prefix (tail, c);
}
+#endif
cmd = nconc2 (cmd, inherit);
store_in_keymap (keymap, c, cmd);
If a second optional argument MAPVAR is given, the map is stored as\n\
its value instead of as COMMAND's value; but COMMAND is still defined\n\
as a function.")
- (name, mapvar)
- Lisp_Object name, mapvar;
+ (command, mapvar)
+ Lisp_Object command, mapvar;
{
Lisp_Object map;
map = Fmake_sparse_keymap (Qnil);
- Ffset (name, map);
+ Ffset (command, map);
if (!NILP (mapvar))
Fset (mapvar, map);
else
- Fset (name, map);
- return name;
+ Fset (command, map);
+ return command;
}
DEFUN ("use-global-map", Fuse_global_map, Suse_global_map, 1, 1, 0,
{
keymap = get_keymap (keymap);
current_global_map = keymap;
- record_asynch_buffer_change ();
return Qnil;
}
keymap = get_keymap (keymap);
current_buffer->keymap = keymap;
- record_asynch_buffer_change ();
return Qnil;
}
"Find all keymaps accessible via prefix characters from KEYMAP.\n\
Returns a list of elements of the form (KEYS . MAP), where the sequence\n\
KEYS starting from KEYMAP gets you to MAP. These elements are ordered\n\
-so that the KEYS increase in length. The first element is (\"\" . KEYMAP).\n\
+so that the KEYS increase in length. The first element is ([] . KEYMAP).\n\
An optional argument PREFIX, if non-nil, should be a key sequence;\n\
then the value includes only maps for prefixes that start with PREFIX.")
- (startmap, prefix)
- Lisp_Object startmap, prefix;
+ (keymap, prefix)
+ Lisp_Object keymap, prefix;
{
Lisp_Object maps, good_maps, tail;
int prefixlen = 0;
/* If a prefix was specified, start with the keymap (if any) for
that prefix, so we don't waste time considering other prefixes. */
Lisp_Object tem;
- tem = Flookup_key (startmap, prefix, Qt);
+ tem = Flookup_key (keymap, prefix, Qt);
/* Flookup_key may give us nil, or a number,
if the prefix is not defined in this particular map.
It might even give us a list that isn't a keymap. */
}
else
maps = Fcons (Fcons (Fmake_vector (make_number (0), Qnil),
- get_keymap (startmap)),
+ get_keymap (keymap)),
Qnil);
/* For each map in the list maps,
/* This function cannot GC. */
DEFUN ("text-char-description", Ftext_char_description, Stext_char_description, 1, 1, 0,
- "Return a pretty description of file-character CHAR.\n\
+ "Return a pretty description of file-character CHARACTER.\n\
Control characters turn into \"^char\", etc.")
- (chr)
- Lisp_Object chr;
+ (character)
+ Lisp_Object character;
{
char tem[6];
- CHECK_NUMBER (chr, 0);
+ CHECK_NUMBER (character, 0);
- *push_text_char_description (XINT (chr) & 0377, tem) = 0;
+ *push_text_char_description (XINT (character) & 0377, tem) = 0;
return build_string (tem);
}
describe_map (Fcdr (elt), Fcar (elt),
transl ? describe_translation : describe_command,
- partial, sub_shadows, &seen);
+ partial, sub_shadows, &seen, nomenu);
skip: ;
}
UNGCPRO;
}
+static int previous_description_column;
+
static void
describe_command (definition)
Lisp_Object definition;
{
register Lisp_Object tem1;
+ int column = current_column ();
+ int description_column;
- Findent_to (make_number (16), make_number (1));
+ /* If column 16 is no good, go to col 32;
+ but don't push beyond that--go to next line instead. */
+ if (column > 30)
+ {
+ insert_char ('\n');
+ description_column = 32;
+ }
+ else if (column > 14 || (column > 10 && previous_description_column == 32))
+ description_column = 32;
+ else
+ description_column = 16;
+
+ Findent_to (make_number (description_column), make_number (1));
+ previous_description_column = description_column;
if (SYMBOLP (definition))
{
/* Describe the contents of map MAP, assuming that this map itself is
reached by the sequence of prefix keys KEYS (a string or vector).
- PARTIAL, SHADOW are as in `describe_map_tree' above. */
+ PARTIAL, SHADOW, NOMENU are as in `describe_map_tree' above. */
static void
-describe_map (map, keys, elt_describer, partial, shadow, seen)
+describe_map (map, keys, elt_describer, partial, shadow, seen, nomenu)
register Lisp_Object map;
Lisp_Object keys;
int (*elt_describer) ();
int partial;
Lisp_Object shadow;
Lisp_Object *seen;
+ int nomenu;
{
Lisp_Object elt_prefix;
Lisp_Object tail, definition, event;
if (! (SYMBOLP (event) || INTEGERP (event)))
continue;
+ if (nomenu && EQ (event, Qmenu_bar))
+ continue;
+
definition = get_keyelt (XCONS (XCONS (tail)->car)->cdr, 0);
/* Don't show undefined commands or suppressed commands. */
if (first)
{
+ previous_description_column = 0;
insert ("\n", 1);
first = 0;
}
DEFUN ("apropos-internal", Fapropos_internal, Sapropos_internal, 1, 2, 0,
"Show all symbols whose names contain match for REGEXP.\n\
-If optional 2nd arg PRED is non-nil, (funcall PRED SYM) is done\n\
+If optional 2nd arg PREDICATE is non-nil, (funcall PREDICATE SYMBOL) is done\n\
for each symbol and a symbol is mentioned only if that returns non-nil.\n\
Return list of symbols found.")
- (string, pred)
- Lisp_Object string, pred;
+ (regexp, predicate)
+ Lisp_Object regexp, predicate;
{
struct gcpro gcpro1, gcpro2;
- CHECK_STRING (string, 0);
- apropos_predicate = pred;
+ CHECK_STRING (regexp, 0);
+ apropos_predicate = predicate;
GCPRO2 (apropos_predicate, apropos_accumulate);
apropos_accumulate = Qnil;
- map_obarray (Vobarray, apropos_accum, string);
+ map_obarray (Vobarray, apropos_accum, regexp);
apropos_accumulate = Fsort (apropos_accumulate, Qstring_lessp);
UNGCPRO;
return apropos_accumulate;
staticpro (&Qnon_ascii);
defsubr (&Skeymapp);
+ defsubr (&Skeymap_parent);
+ defsubr (&Sset_keymap_parent);
defsubr (&Smake_keymap);
defsubr (&Smake_sparse_keymap);
defsubr (&Scopy_keymap);
HCoop / bpt / emacs.git / blobdiff