#define file_tell ftell
#endif
+static SCM obarrays;
+
/* Hash table read constants. */
static Lisp_Object Qhash_table, Qdata;
static Lisp_Object Qtest, Qsize;
\f
static Lisp_Object initial_obarray;
-/* `oblookup' stores the bucket number here, for the sake of Funintern. */
-
-static size_t oblookup_last_bucket_number;
+Lisp_Object
+obhash (Lisp_Object obarray)
+{
+ Lisp_Object tem = scm_hashq_get_handle (obarrays, obarray);
+ if (SCM_UNLIKELY (scm_is_false (tem)))
+ tem = scm_hashq_create_handle_x (obarrays, obarray,
+ scm_make_obarray ());
+ return scm_cdr (tem);
+}
/* Get an error if OBARRAY is not an obarray.
If it is one, return it. */
tem = oblookup (obarray, SSDATA (string),
SCHARS (string),
SBYTES (string));
- if (!INTEGERP (tem))
+ if (SYMBOLP (tem))
return tem;
if (!NILP (Vpurify_flag))
string = Fpurecopy (string);
- sym = Fmake_symbol (string);
- if (EQ (obarray, initial_obarray))
- XSYMBOL (sym)->interned = SYMBOL_INTERNED_IN_INITIAL_OBARRAY;
- else
- XSYMBOL (sym)->interned = SYMBOL_INTERNED;
+ sym = scm_intern (scm_from_utf8_stringn (SSDATA (string),
+ SBYTES (string)),
+ obhash (obarray));
+ initialize_symbol (sym, string);
if ((SREF (string, 0) == ':')
&& EQ (obarray, initial_obarray))
SET_SYMBOL_VAL (XSYMBOL (sym), sym);
}
- ptr = aref_addr (obarray, XINT (tem));
- if (SYMBOLP (*ptr))
- set_symbol_next (sym, XSYMBOL (*ptr));
- else
- set_symbol_next (sym, NULL);
- *ptr = sym;
- return sym;
+ return scm_intern (scm_from_utf8_stringn (SSDATA (string),
+ SBYTES (string)),
+ obhash (obarray));
}
DEFUN ("intern-soft", Fintern_soft, Sintern_soft, 1, 2, 0,
else
return tem;
}
+
+DEFUN ("find-symbol", Ffind_symbol, Sfind_symbol, 1, 2, 0,
+ doc: /* find-symbol */)
+ (Lisp_Object string, Lisp_Object obarray)
+{
+ Lisp_Object tem;
+
+ obarray = check_obarray (NILP (obarray) ? Vobarray : obarray);
+ CHECK_STRING (string);
+
+ tem = oblookup (obarray, SSDATA (string), SCHARS (string), SBYTES (string));
+ if (INTEGERP (tem))
+ return scm_values (scm_list_2 (Qnil, Qnil));
+ else
+ return scm_values (scm_list_2 (tem, Qt));
+}
\f
DEFUN ("unintern", Funintern, Sunintern, 1, 2, 0,
doc: /* Delete the symbol named NAME, if any, from OBARRAY.
usage: (unintern NAME OBARRAY) */)
(Lisp_Object name, Lisp_Object obarray)
{
- register Lisp_Object string, tem;
- size_t hash;
+ Lisp_Object string;
+ Lisp_Object tem;
- if (NILP (obarray)) obarray = Vobarray;
+ if (NILP (obarray))
+ obarray = Vobarray;
obarray = check_obarray (obarray);
if (SYMBOLP (name))
- string = SYMBOL_NAME (name);
- else
- {
- CHECK_STRING (name);
- string = name;
- }
-
- tem = oblookup (obarray, SSDATA (string),
- SCHARS (string),
- SBYTES (string));
- if (INTEGERP (tem))
- return Qnil;
- /* If arg was a symbol, don't delete anything but that symbol itself. */
- if (SYMBOLP (name) && !EQ (name, tem))
- return Qnil;
-
- /* There are plenty of other symbols which will screw up the Emacs
- session if we unintern them, as well as even more ways to use
- `setq' or `fset' or whatnot to make the Emacs session
- unusable. Let's not go down this silly road. --Stef */
- /* if (EQ (tem, Qnil) || EQ (tem, Qt))
- error ("Attempt to unintern t or nil"); */
-
- XSYMBOL (tem)->interned = SYMBOL_UNINTERNED;
-
- hash = oblookup_last_bucket_number;
-
- if (EQ (AREF (obarray, hash), tem))
{
- if (XSYMBOL (tem)->next)
- {
- Lisp_Object sym;
- XSETSYMBOL (sym, XSYMBOL (tem)->next);
- ASET (obarray, hash, sym);
- }
- else
- ASET (obarray, hash, make_number (0));
+ if (! EQ (name,
+ scm_find_symbol (scm_symbol_to_string (name),
+ obhash (obarray))))
+ return Qnil;
+ string = SYMBOL_NAME (name);
}
else
{
- Lisp_Object tail, following;
-
- for (tail = AREF (obarray, hash);
- XSYMBOL (tail)->next;
- tail = following)
- {
- XSETSYMBOL (following, XSYMBOL (tail)->next);
- if (EQ (following, tem))
- {
- set_symbol_next (tail, XSYMBOL (following)->next);
- break;
- }
- }
+ CHECK_STRING (name);
+ string = name;
+
}
- return Qt;
+ return (scm_is_true (scm_unintern (name, obhash (obarray))) ? Qt : Qnil);
}
\f
/* Return the symbol in OBARRAY whose names matches the string
Lisp_Object
oblookup (Lisp_Object obarray, register const char *ptr, ptrdiff_t size, ptrdiff_t size_byte)
{
- size_t hash;
- size_t obsize;
- register Lisp_Object tail;
- Lisp_Object bucket, tem;
+ Lisp_Object sym;
+ Lisp_Object string2 = scm_from_utf8_stringn (ptr, size_byte);
obarray = check_obarray (obarray);
- obsize = ASIZE (obarray);
- hash = hash_string (ptr, size_byte) % obsize;
- bucket = AREF (obarray, hash);
- oblookup_last_bucket_number = hash;
- if (EQ (bucket, make_number (0)))
- ;
- else if (!SYMBOLP (bucket))
- error ("Bad data in guts of obarray"); /* Like CADR error message. */
+ sym = scm_find_symbol (string2, obhash (obarray));
+ if (scm_is_true (sym)
+ && scm_is_true (scm_module_variable (symbol_module, sym)))
+ return sym;
else
- for (tail = bucket; ; XSETSYMBOL (tail, XSYMBOL (tail)->next))
- {
- if (SBYTES (SYMBOL_NAME (tail)) == size_byte
- && SCHARS (SYMBOL_NAME (tail)) == size
- && !memcmp (SDATA (SYMBOL_NAME (tail)), ptr, size_byte))
- return tail;
- else if (XSYMBOL (tail)->next == 0)
- break;
- }
- XSETINT (tem, hash);
- return tem;
+ return make_number (0);
}
\f
void
map_obarray (Lisp_Object obarray, void (*fn) (Lisp_Object, Lisp_Object), Lisp_Object arg)
{
- ptrdiff_t i;
- register Lisp_Object tail;
+ Lisp_Object proc (Lisp_Object sym)
+ {
+ Lisp_Object tem = Ffind_symbol (SYMBOL_NAME (sym), obarray);
+ if (scm_is_true (scm_c_value_ref (tem, 1))
+ && EQ (sym, scm_c_value_ref (tem, 0)))
+ fn (sym, arg);
+ return SCM_UNSPECIFIED;
+ }
CHECK_VECTOR (obarray);
- for (i = ASIZE (obarray) - 1; i >= 0; i--)
- {
- tail = AREF (obarray, i);
- if (SYMBOLP (tail))
- while (1)
- {
- (*fn) (tail, arg);
- if (XSYMBOL (tail)->next == 0)
- break;
- XSETSYMBOL (tail, XSYMBOL (tail)->next);
- }
- }
+ scm_obarray_for_each (scm_c_make_gsubr ("proc", 1, 0, 0, proc),
+ obhash (obarray));
}
static void
initial_obarray = Vobarray;
staticpro (&initial_obarray);
+ obarrays = scm_make_hash_table (SCM_UNDEFINED);
+ scm_hashq_set_x (obarrays, Vobarray, SCM_UNDEFINED);
+
Qunbound = Fmake_symbol (build_pure_c_string ("unbound"));
/* Set temporary dummy values to Qnil and Vpurify_flag to satisfy the
NILP (Vpurify_flag) check in intern_c_string. */
HCoop / bpt / emacs.git / blobdiff