In April of 2002, the XML Working Group of the W3C announced it was considering a revision of XML namespaces that would permit the assignment of a namespace prefix to the null string.
在2002年4月，W3C的XML工作组宣布它正在考虑修订XML名称空间，可能会允许把名称空间前缀指定为空字符串。
The XML community developed XML canonical form for such purposes, and the W3C RDF working group required the same sort of form for RDF while it was developing RDF conformance test suites.
为此，XML社区开发了xml范式，而且当W3C RDF工作组在开发rdf一致性测试套件时需要同种形式的RDF。
The XML Query working group, chartered in September 1999, was tasked with creating a flexible query language to extract data from XML documents.
XML Query 工作组在 1999 年 9 月正式成立，任务是创建一种灵活的查询语言来从 XML 文档中抽取数据。
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