diff --git a/lib/libft/srcs/format/ft_tabstr.c b/lib/libft/srcs/format/ft_tabstr.c
index 89b8dca..f7c55a3 100644
--- a/lib/libft/srcs/format/ft_tabstr.c
+++ b/lib/libft/srcs/format/ft_tabstr.c
@@ -19,6 +19,8 @@ char	*ft_tabstr(char **tab)
 	char	*out;
 	char	*tmp;
 
+	if (!tab)
+		return (NULL);
 	i = -1;
 	alloc_count = 0;
 	while (tab[++i])
diff --git a/srcs/parsing/drawio/drawio_ast_utils.c b/srcs/parsing/drawio/drawio_ast_utils.c
index f15dae1..96e2f9e 100644
--- a/srcs/parsing/drawio/drawio_ast_utils.c
+++ b/srcs/parsing/drawio/drawio_ast_utils.c
@@ -41,7 +41,10 @@ t_dio_node	get_cmd_txt(t_ast_n *node)
 	{
 		txt.cmd = ft_sprintf("%s%s", NL, node->cmd);
 		txt.cmd = replace_left_red(txt.cmd);
-		args = ft_tabstr(node->args);
+		if (node->args && node->args[0])
+			args = ft_tabstr(node->args);
+		else
+			args = ft_strdup("");
 		txt.args = ft_sprintf("%s%s%s", NL, args, NL);
 		free(args);
 		txt.files = ft_sprintf("redir: UNCHECKED\n");
diff --git a/srcs/parsing/heredoc.c b/srcs/parsing/heredoc.c
index f81df06..1e5b369 100644
--- a/srcs/parsing/heredoc.c
+++ b/srcs/parsing/heredoc.c
@@ -13,7 +13,7 @@ void	read_hereinput(char *limiter)
 	r = read(0, &c, 1);
 	if (r == 0)
 	{
-		ft_fprintf (2, "etdsttdt\n");
+		ft_fprintf (2, "\n");
 		exit(EXIT_SUCCESS);
 	}
 	while (r && c != '\n' && c != '\0')
diff --git a/srcs/parsing/tokenizer/tokenizer.c b/srcs/parsing/tokenizer/tokenizer.c
index 73c991c..02c3712 100644
--- a/srcs/parsing/tokenizer/tokenizer.c
+++ b/srcs/parsing/tokenizer/tokenizer.c
@@ -152,19 +152,19 @@ t_node	*tokenize(char *str)
 	head = tokenize_base(str);
 	if (!head)
 		return (NULL);
-	debug_token_list(head, "tokenize_base");
+	// debug_token_list(head, "tokenize_base");
 	if (!trim_nodes(head))
 		return (NULL);
-	debug_token_list(head, "trim_nodes");
+	// debug_token_list(head, "trim_nodes");
 	if (!unstick_nodes(head))
 		return (NULL);
-	debug_token_list(head, "unstick_nodes");
+	// debug_token_list(head, "unstick_nodes");
 	stick_quote_node(head, 39);
 	stick_quote_node(head, '"');
-	debug_token_list(head, "stick quote node");
+	// debug_token_list(head, "stick quote node");
 	if (!trim_nodes(head))
 		return (NULL);
-	debug_token_list(head, "trim_nodes");
+	// debug_token_list(head, "trim_nodes");
 	set_token(head);
 	del_void_nodes(&head);
 	debug_token_list(head, "tokenizer");