协同编辑器中版本管理的设计与实现

Design and Implement of Version Management in Collaborative Editor

协同编辑系统支持多人同时对同一文档进行操作,其中的版本控制问题与单用户编辑器相比显得更为复杂,尤为重要。然而已有的协同编辑系统基本上都未考虑版本控制问题。该文主要讨论现已开发的协同编辑器CoEditor中的版本管理功能的设计与实现。考虑到空间和时间效率以及协同工作的需要,这里以差值保存文档内容,通过版本字典、操作的置换和冲突检测等技术实现了版本管理的主要功能。

Supporting many persons to operate on a document at the same time is a basic function in collaborative editing system.Compared with single user editor,version control is more complex and important.But ,the fact is many existing collaborative editing system do not consider the above -mentioned problem.In this paper,the design and implemention of version management in collaborative editor -CoEditor is discussed.Considering the need of space,efficiency and cooperative work,the content of a document is storied using difference value.In order to support the function of version management ,many technologies such as version dictionary,operative replacement and conflict detection are adopted.