• NateNate60@lemmy.worldOP
    2·
    4 hours ago

    They said—

    A line with exactly 0 or 1 characters, or a line with a sequence of 1 or 3 or more characters, repeated at least twice

    Note—

    …or a line with a sequence of 1 or 3 or more characters, repeated at least twice

    It should be—

    …or a line with a sequence of 2 or more characters, repeated at least twice

    The regex in the post will match “abab”. Their original description (line 2 of this comment) will not match “abab”.

    • MummifiedClient5000
      3·
      3 hours ago

      I agree, you’re right about the part after the pipe and RegalPotoo’s explanation was not entirely correct.