高性能的XML解析器OnceXMLParser

A High Performance XML Parser OnceXMLParser

XML(extensible markup language)解析器是分析、处理XML文档的基础软件.研究高性能验证型XML解析器的实现.开发了支持3种解析模型的XML解析器OnceXMLParser,该解析器通过了严格的XML兼容性测试和API兼容性测试.OnceXMLParser具有轻量级体系结构并进行了多方面的性能优化,包括高效的词法分析、基于统计分析的自动机实现、合理的资源分配策略以及语言层次上的优化.性能测试结果表明,OnceXMLParser具有出色的解析性能.

An XML （extensible markup language） parser is the fundamental software for analyzing and processing XML documents. The implementation of a high performance full-validating XML parser is studied in this paper. This research develops a OnceXMLParser which supports three kinds of parsing models. It passes the rigorous XML conformance testing and API （application programming interface） conformance testing. OnceXMLParser adopts light-weighted architecture and is optimized on many aspects including efficient lexical analysis, statistical automaton implementation, reasonable resource allocation strategies and some fine tunings on language level. Performance testing results show that OnceXMLParser has outstanding parsing efficiency.