The Design And Realization Of Validation Subsystem In XML Parser Based On Schema Validation

As a markup language, XML (eXtensible Markup Language) will be the next internet standard of information exchanging for its capability of representing various kind of data and interoperability through heterogenous applications. In order to record or obtain the information and data in XML file in the information exchange , we need to parse and edit XML file ,and XML parse is an important foundation in the XML application.According to such technique and applied background, the author does the work of the design and realization of XML parser based on schema validation. Because the group divides the work, the thesis is responsible for the design and realization of the validation subsystem. The thesis analyze the requirement analysis of the XML parser based on XML schema validation, build up the basic frame and structure of the XML parser based on XML schema validation, study the various standard interfaces of the XML parser and choose a suitable one as a base to design and realization, and the thesis analyze, design and realize the XML parser based on XML schema validation and describe the realization of lexical analysis, IO　operation　analysis　and validation analysis in detail.