degesch: get rid of partial command name matching

degesch.c

@@ -7591,38 +7591,16 @@ handle_command_help (struct handler_args *a)
 	return true;
 }
 
-static int
-command_handler_cmp_by_length (const void *a, const void *b)
-{
-	const struct command_handler *first  = a;
-	const struct command_handler *second = b;
-	return strlen (first->name) - strlen (second->name);
-}
-
 static void
-init_partial_matching_user_command_map (struct str_map *partial)
+init_user_command_map (struct str_map *map)
 {
-	// Trivially create a partial matching map
+	str_map_init (map);
-	str_map_init (partial);
+	map->key_xfrm = tolower_ascii_strxfrm;
-	partial->key_xfrm = tolower_ascii_strxfrm;
 
-	// We process them from the longest to the shortest one,
+	for (size_t i = 0; i < N_ELEMENTS (g_command_handlers); i++)
-	// so that common prefixes favor shorter entries
-	struct command_handler *by_length[N_ELEMENTS (g_command_handlers)];
-	for (size_t i = 0; i < N_ELEMENTS (by_length); i++)
-		by_length[i] = &g_command_handlers[i];
-	qsort (by_length, N_ELEMENTS (by_length), sizeof *by_length,
-		command_handler_cmp_by_length);
-
-	for (size_t i = N_ELEMENTS (by_length); i--; )
 	{
-		char *copy = xstrdup (by_length[i]->name);
+		struct command_handler *handler = &g_command_handlers[i];
-		for (size_t part = strlen (copy); part; part--)
+		str_map_set (map, handler->name, handler);
-		{
-			copy[part] = '\0';
-			str_map_set (partial, copy, by_length[i]);
-		}
-		free (copy);
 	}
 }
 
@@ -7631,10 +7609,10 @@ process_user_command
 	(struct app_context *ctx, const char *command_name, char *input)
 {
 	static bool initialized = false;
-	static struct str_map partial;
+	static struct str_map map;
 	if (!initialized)
 	{
-		init_partial_matching_user_command_map (&partial);
+		init_user_command_map (&map);
 		initialized = true;
 	}