屏幕编辑程序Y—edit的研制

Research and Design of the Screen Oriented Display Editor Program, Y-edit

摘要: 编辑程序是计算机系统中基本应用软件包之一。文章论述了北京钢铁学院软件开发室研制成功的屏幕编辑程序Y—edit的主要设计思想和结构特点
Y—edit是在Unix操作系统支持下,用C语言编写的,具有很好的可移植性。采用终端虚拟化的方法,Y—edit可以在任何终端使用。定义了控制命令和对应控制键的语法,给用户提供了自己定义控制命令和对应控制键的便利。采用GaP工作区域结构和简化控制命令。以提高响应速度。
通过研制Y—edit,为设计系统应用程序提供了成功的经验。

Abstract: The Editorial program is one of the basic software package in a computer system The paper deals with the main idea and structure of the screen oriented (visual) display editor, for convenience called Y-edit, developed at software Development Center, Peking University of Iron and Steel Tech.
Y-edit written in C language is highly portable, running under unix operating system.It works at all kinds of visual terminals,by utilizing virtual terminal.The grammer between the control commands and corresponding control keys is defined, providing the user with the facility to define his own control commands and the corresponding control keys.
The responsive speed is elevated by the use of Gap working-area structure and simplified input control command.The success of Y-edit has provided ample experience in designing a system pratical program.