Grammar construction methods for extended deterministic expressions

01/04/2023

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by   Xiaoying Mou, et al.

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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.