Added chat protocol register. Changed all chat_type fields to use it.

git-svn-id: http://svn.irssi.org/repos/irssi/trunk@640 dbcabf3a-b0e7-0310-adc4-f8d773084564

src/core/chat-protocols.c

@@ -0,0 +1,172 @@
+/*
+ chat-protocol.c : irssi
+
+    Copyright (C) 2000 Timo Sirainen
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program 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 General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+*/
+
+#include "module.h"
+#include "chat-protocols.h"
+
+typedef struct {
+	int id;
+	char *name;
+	char *fullname;
+	char *chatnet;
+} PROTOCOL_REC;
+
+static int id_counter;
+static GSList *protocols;
+
+void *chat_protocol_check_cast(void *object, int type_pos, const char *id)
+{
+	return object == NULL ||
+		chat_protocol_lookup(id) !=
+		G_STRUCT_MEMBER(int, object, type_pos) ? NULL : object;
+}
+
+static PROTOCOL_REC *chat_protocol_find(const char *name)
+{
+	GSList *tmp;
+
+	g_return_val_if_fail(name != NULL, NULL);
+
+	for (tmp = protocols; tmp != NULL; tmp = tmp->next) {
+		PROTOCOL_REC *rec = tmp->data;
+
+		if (g_strcasecmp(rec->name, name) == 0)
+			return rec;
+	}
+
+	return NULL;
+}
+
+static PROTOCOL_REC *chat_protocol_find_id(int id)
+{
+	GSList *tmp;
+
+	g_return_val_if_fail(id > 0, NULL);
+
+	for (tmp = protocols; tmp != NULL; tmp = tmp->next) {
+		PROTOCOL_REC *rec = tmp->data;
+
+		if (rec->id == id)
+			return rec;
+	}
+
+	return NULL;
+}
+
+/* Register new chat protocol. */
+void chat_protocol_register(const char *name,
+			    const char *fullname,
+			    const char *chatnet)
+{
+	PROTOCOL_REC *rec;
+
+	g_return_if_fail(name != NULL);
+	g_return_if_fail(fullname != NULL);
+	g_return_if_fail(chatnet != NULL);
+
+	if (chat_protocol_find(name) != NULL)
+		return;
+
+	rec = g_new0(PROTOCOL_REC, 1);
+	rec->id = ++id_counter;
+	rec->name = g_strdup(name);
+	rec->fullname = g_strdup(fullname);
+	rec->chatnet = g_strdup(chatnet);
+	protocols = g_slist_append(protocols, rec);
+}
+
+static void chat_protocol_destroy(PROTOCOL_REC *rec)
+{
+	g_return_if_fail(rec != NULL);
+
+	protocols = g_slist_remove(protocols, rec);
+
+	g_free(rec->name);
+	g_free(rec->fullname);
+	g_free(rec->chatnet);
+	g_free(rec);
+}
+
+/* Unregister chat protocol. */
+void chat_protocol_unregister(const char *name)
+{
+	PROTOCOL_REC *rec;
+
+	g_return_if_fail(name != NULL);
+
+	rec = chat_protocol_find(name);
+	if (rec != NULL) chat_protocol_destroy(rec);
+}
+
+/* Return the ID for the specified chat protocol. */
+int chat_protocol_lookup(const char *name)
+{
+	PROTOCOL_REC *rec;
+
+	g_return_val_if_fail(name != NULL, -1);
+
+	rec = chat_protocol_find(name);
+	return rec == NULL ? -1 : rec->id;
+}
+
+/* Return the name for the specified chat protocol ID. */
+const char *chat_protocol_get_name(int id)
+{
+	PROTOCOL_REC *rec;
+
+	g_return_val_if_fail(id > 0, NULL);
+
+        rec = chat_protocol_find_id(id);
+	return rec == NULL ? NULL : rec->name;
+}
+
+/* Return the full name for the specified chat protocol ID. */
+const char *chat_protocol_get_fullname(int id)
+{
+	PROTOCOL_REC *rec;
+
+	g_return_val_if_fail(id > 0, NULL);
+
+        rec = chat_protocol_find_id(id);
+	return rec == NULL ? NULL : rec->fullname;
+}
+
+/* Return the chatnet identifier name for the specified chat protocol ID. */
+const char *chat_protocol_get_chatnet(int id)
+{
+	PROTOCOL_REC *rec;
+
+	g_return_val_if_fail(id > 0, NULL);
+
+        rec = chat_protocol_find_id(id);
+	return rec == NULL ? NULL : rec->chatnet;
+}
+
+void chat_protocols_init(void)
+{
+	id_counter = 0;
+	protocols = NULL;
+}
+
+void chat_protocols_deinit(void)
+{
+	while (protocols != NULL)
+                chat_protocol_destroy(protocols->data);
+}