SGML文档处理工具的研究

A toolkit for SGML document processing

ＩＳＯ 国际标准ＳＧＭＬ是用于文档描述和交换的通用置标语言，尤其在超媒体系统中得到广泛应用． 作者开发的一种支持各类ＳＧＭＬ 应用系统的工具——ｓｇｍ ｌｔｏｏｌ，可动态解释ＤＴＤ 和ＳＧＭＬ文档，并保存到面向对象数据库ＯＳＣＡＲ 中．ＯＳＣＡＲ中规范的ＳＧＭＬ数据结构可作为其它ＳＧＭＬ应用系统的基础． 详细讨论了ｓｇｍ ｌｔｏｏｌ的实现技术，重点介绍用ｓｇｍ ｌｔｏｏｌ解释ＳＧＭＬ语言的词法分析、语法分析及语义处理等层次的技术．

SGML is an international standard for the structure definition,description and exchange of documents.It has also been widely used in hypermedia systems.This paper presents ideas and methods to develop a SGML tool,sgmltool.With sgmltool,SGML documents are interpreted into formal data forms and stored into the object\|oriented datebase system OSCAR from which the SGML documents are easily accessed by SGML applications.The emphases of the paper are the techniques used in the SGML processing modules like lexical parsing,syntactic parsing and semantic translation.