--- lbbs/include/editor.h	2025/06/08 09:25:53	1.1
+++ lbbs/include/editor.h	2025/11/04 14:58:55	1.10
@@ -1,18 +1,10 @@
-/***************************************************************************
-						   editor.h  -  description
-							 -------------------
-	copyright            : (C) 2004-2025 by Leaflet
-	email                : leaflet@leafok.com
- ***************************************************************************/
-
-/***************************************************************************
- *                                                                         *
- *   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 3 of the License, or     *
- *   (at your option) any later version.                                   *
- *                                                                         *
- ***************************************************************************/
+/* SPDX-License-Identifier: GPL-3.0-or-later */
+/*
+ * editor
+ *   - user interactive full-screen text editor
+ *
+ * Copyright (C) 2004-2025  Leaflet <leaflet@leafok.com>
+ */
 
 #ifndef _EDITOR_H_
 #define _EDITOR_H_
@@ -24,18 +16,35 @@
 
 struct editor_data_t
 {
-	char *p_data_lines[MAX_EDITOR_DATA_LINES];
-	long data_line_total;
 	char *p_display_lines[MAX_EDITOR_DATA_LINES];
-	long display_line_lengths[MAX_EDITOR_DATA_LINES];
+	long display_line_lengths[MAX_EDITOR_DATA_LINES]; // string length of display line
+	int display_line_widths[MAX_EDITOR_DATA_LINES];	  // display width of display line
 	long display_line_total;
 };
 typedef struct editor_data_t EDITOR_DATA;
 
+struct editor_ctx_t
+{
+	int reach_begin;
+	int reach_end;
+	long line_cursor;
+	char msg[MSG_EXT_MAX_LEN];
+};
+typedef struct editor_ctx_t EDITOR_CTX;
+
+extern int editor_memory_pool_init(void);
+extern void editor_memory_pool_cleanup(void);
+
 extern EDITOR_DATA *editor_data_load(const char *p_data);
 extern long editor_data_save(const EDITOR_DATA *p_editor_data, char *p_data, size_t buf_len);
 extern void editor_data_cleanup(EDITOR_DATA *p_editor_data);
 
 extern int editor_display(EDITOR_DATA *p_editor_data);
 
+extern int editor_data_insert(EDITOR_DATA *p_editor_data, long *p_display_line, long *p_offset,
+							  const char *str, int str_len, long *p_last_updated_line);
+
+extern int editor_data_delete(EDITOR_DATA *p_editor_data, long *p_display_line, long *p_offset,
+							  long *p_last_updated_line, int del_line);
+
 #endif //_EDITOR_H_