Patch shell cursor (#59)

* 调整代码减少bug

* 修复换行光标bug

Co-authored-by: longjin <longjin@RinGoTek.cn>

kernel/filesystem/VFS/VFS.c

@@ -398,7 +398,6 @@ uint64_t do_open(const char *filename, int flags)
 
     // 寻找文件
     struct vfs_dir_entry_t *dentry = vfs_path_walk(path, 0);
-
     if (dentry == NULL && flags & O_CREAT)
     {
         // 先找到倒数第二级目录

kernel/lib/libUI/textui.c

@@ -181,7 +181,8 @@ static int __textui_putchar_window(struct textui_window_t *window, uint16_t char
         ++vline->index;
         textui_refresh_characters(window, window->vline_operating, vline->index - 1, 1);
         // 换行
-        if (vline->index >= window->chars_per_line)
+        // 加入光标后，因为会识别光标，所以需超过该行最大字符数才能创建新行
+        if (vline->index > window->chars_per_line)
         {
             __textui_new_line(window, window->vline_operating);
         }
@@ -295,7 +296,7 @@ int textui_putchar(uint16_t character, uint32_t FRcolor, uint32_t BKcolor)
 /**
  * @brief 初始化text ui框架
  *
- * @return int
+ * @return int 
  */
 int textui_init()
 {