Andrew Welch wrote:

  Hi Andrew,

> I can't see what you're getting at, but I can't convert it
> into a working example:

> matches('hello', 'a?e?f?m?r?r?')"

> returns true, which suggests the regex needs work... but I
> don't know regex's well enough to correct it.

  I think the point is to sort the word to match as well,
and to try to match it against the regex as a whole:

    hello:
      matches('ehllo', '^a?e?f?m?r?r?$')
      false
    farm:
      matches('afmr', '^a?e?f?m?r?r?$')
      true
    farmer:
      matches('aefmrr', '^a?e?f?m?r?r?$')
      true

  Regards,

--drkm



















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