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+/*=============================================================================*\
+ * File: gfsmEnum.def
+ * Author: Bryan Jurish <moocow@ling.uni-potsdam.de>
+ * Description: finite state machine library: enumerations: inline definitions
+ *
+ * Copyright (c) 2004 Bryan Jurish.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *=============================================================================*/
+
+#include <glib.h>
+#include <gfsmUtils.h>
+
+/*======================================================================
+ * Methods: Constructors etc.
+ */
+
+/*--------------------------------------------------------------
+ * new_full()
+ */
+GFSM_INLINE
+gfsmEnum *gfsm_enum_new_full(gfsmDupFunc key_dup_func,
+ GHashFunc key_hash_func,
+ GEqualFunc key_equal_func,
+ GDestroyNotify key_destroy_func)
+{
+ gfsmEnum *en = g_new(gfsmEnum,1);
+ en->table = g_hash_table_new_full(key_hash_func,
+ key_equal_func,
+ key_destroy_func,
+ NULL);
+ en->nxtval = 0;
+ en->key_dup = key_dup_func;
+ return en;
+}
+
+/*--------------------------------------------------------------
+ * clear()
+ */
+GFSM_INLINE
+void gfsm_enum_clear(gfsmEnum *en)
+{
+ g_hash_table_foreach_remove(en->table, gfsm_hash_clear_func, NULL);
+ en->nxtval = 0;
+}
+
+/*--------------------------------------------------------------
+ * free()
+ */
+GFSM_INLINE
+void gfsm_enum_free(gfsmEnum *en)
+{
+ g_hash_table_destroy(en->table);
+ g_free(en);
+}
+
+
+/*======================================================================
+ * Methods: Accessors
+ */
+
+/*--------------------------------------------------------------
+ * lookup_extended()
+ */
+GFSM_INLINE
+gboolean gfsm_enum_lookup_extended(gfsmEnum *en,
+ gconstpointer lookup_key,
+ gpointer *stored_key,
+ gpointer *stored_val)
+{
+ return g_hash_table_lookup_extended(en->table, lookup_key, stored_key, stored_val);
+}
+
+/*--------------------------------------------------------------
+ * lookup()
+ */
+GFSM_INLINE
+guint gfsm_enum_lookup(gfsmEnum *en, gconstpointer key)
+{
+ gpointer s_val;
+ if (g_hash_table_lookup_extended(en->table, key, NULL, &s_val)) return GPOINTER_TO_UINT(s_val);
+ return gfsmEnumNone;
+}
+
+
+/*--------------------------------------------------------------
+ * insert_full()
+ */
+GFSM_INLINE
+guint gfsm_enum_insert_full(gfsmEnum *en, gpointer key, guint val)
+{
+ gpointer s_key, s_val;
+ if (g_hash_table_lookup_extended(en->table, key, &s_key, &s_val)) {
+ //-- already present: steal it & replace
+ if (val == gfsmEnumNone) {
+ val = GPOINTER_TO_UINT(s_val);
+ } else {
+ g_hash_table_steal(en->table, s_key);
+ g_hash_table_insert(en->table, s_key, GUINT_TO_POINTER(val));
+ }
+ }
+ else {
+ //-- no key already present: insert a new one
+ if (en->key_dup) s_key = (*(en->key_dup))(key);
+ else s_key = key;
+ if (val == gfsmEnumNone) val = en->nxtval;
+ g_hash_table_insert(en->table, s_key, GUINT_TO_POINTER(val));
+ }
+
+ //-- keep track of available values
+ if (val >= en->nxtval) en->nxtval = val+1;
+
+ return val;
+}