Regex nested asterisk -


i found regular expression in old system i'm working on. 

(\s*)*

i'm pretty sure " * " @ end redundant want make sure not doing before remove it. it's causing performance issue when it's used in regex.matches() method point hangs entire system if string used parameter has 25+ spaces

does knows if particular syntax has special functionality?

ps: pretty huge system can't test every posible scenario

assuming inner * greedy, then, yes, think outer 1 redundant. outer * attempts repeat sub-match, there ever 1 instance of sub-match because it's greedy.


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