基于DOM的XML文档支持系统

作为ＳＧＭＬ的子集，元标记语言ＸＭＬ及其相关技术正得到越来越广泛的应用，文档对象模型是一种平台无关、语言无关的标准接口，是ＸＭＬ、ＨＴＭＬ、文档互操作的基础，首先论述了ＸＭＬ的应用前景和应用现状，然后提出了基于ＤＯＭ的ＸＭＬ文档支持系统，系统为用户提供一套组件，用来完成ＸＭＬ文档的生成、表现、文档转换等工作，系统同时提供ＤＯＭ１．０所定义的对外功能接口以支持Ｗｅｂ的互操作。

XML DOCUMENT SUPPORT SYSTEM BASED ON DOM

As a subset of SGML, meta markup language Extensible Markup Language (XML) and related technologies are used more broadly. Document Object Model(DOM) is the basis of the implementation of document interoperation,it is a set of platform independence and language independence interfaces. First, the paper discusses the applied trend and current situation of XML , then an XML Document Support System Based on DOM is addressed. The system is composed of 2 parts: Kernel component and User component. Kernel component is divided into 3 entities: Parser, Document Access and XSL Format. Parser analyzs input XML or DTD file and generates internal document object tree like data organization which is maintenanced by Document Access. Standard interfaces defined by DOM version 1.0 are implemented in Document Access. For the lack of definition on DTD operation, we also provided the interfaces for DTD. XSL Format is used to give XML document different presentations such as display and print. User component provides users a set of components to accomplish the creation of XML document, the presentation of XML document, and the conversion between different document format. Because the architecture is component faced, users can choose required function flexiblely.