c# - Is there a .NET library that can do string permutations or string expansion? -

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what i'm looking library or code of classes can used expand construction strings variations , permutations. following (syntax mine, may different):

construction string: [ff]oo [bbß]ar|f(oo|oe) output strings:   foo bar   foo bar   foo bar   foo bar   foo ßar   foo ßar   foo   foe

while wouldn't hard build myself, if it's around, why bother reinventing wheel?

this doesn't follows syntax, use in projects , runs smooth: permutations, combinations, , variations using c# generics


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