Extended regular expressions with counting and interleaving are widely used in practice. However the related theoretical studies for this kind of expressions currently cannot meet the need of practical work. This paper develops syntax definitions for extended deterministic expressions and their subclasses, hope to completely solve the long-standing problem that there are no syntax definitions for this kind of expressions, which has become an important reason for restricting the use of extended expressions.

翻译：带有计数和交错操作的扩展正则表达式在实践中被广泛应用。然而，目前关于此类表达式的相关理论研究尚无法满足实际工作的需求。本文为扩展确定性表达式及其子类开发了语法定义，旨在彻底解决长期以来此类表达式缺乏语法定义的问题——这一不足已成为制约扩展表达式使用的重要原因。