degesch: add an /unalias command

degesch.c

@@ -6856,6 +6856,27 @@ handle_command_alias (struct handler_args *a)
 	return true;
 }
 
+static bool
+handle_command_unalias (struct handler_args *a)
+{
+	if (!*a->arguments)
+		return false;
+
+	struct str_map *aliases = get_aliases_config (a->ctx);
+	while (*a->arguments)
+	{
+		char *name = cut_word (&a->arguments);
+		if (!str_map_find (aliases, name))
+			log_global_error (a->ctx, "No such alias: #s", name);
+		else
+		{
+			str_map_set (aliases, name, NULL);
+			log_global_status (a->ctx, "Alias removed: #s", name);
+		}
+	}
+	return true;
+}
+
 static bool
 handle_command_msg (struct handler_args *a)
 {
@@ -7455,6 +7476,9 @@ g_command_handlers[] =
 	{ "alias",      "List or set aliases",
 	  "[<name> <definition>]",
 	  handle_command_alias,      0 },
+	{ "unalias",    "Unset aliases",
+	  "<name>...",
+	  handle_command_unalias,    0 },
 
 	{ "msg",        "Send message to a nick or channel",
 	  "<target> <message>",