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Comment by cmpb | Hacker News Reader

  SuperExpressive()
    .anythingButString('aeiou')
    .toRegex();
  // ->
  /(?:[^a][^e][^i][^o][^u])/

There's got to be a better way to express that in Regex, right?

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Hmmm.... 'beiou' isn't 'aeiou', but it isn't matched by that pattern. It seems like you need /(?:[^a]....|.[^e]...|..[^i]..|...[^o].|....[^u])/.

Wow, what a horribly named function for a library that aims to make regular expressions more readable. The name very strongly suggests it should match anything but the string aeiou, so that it would match for instance the string a, but that is not what it does at all.

Not without look-ahead/look-behind

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