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I am having trouble matching a pattern of this format: p#.g.com where # is not a 1 or a 2. For instance if the pattern is p1.g.com, I don't need to match. If it it p2.g.com, I don't need to match.

But if it is any other number, such as p3.g.com or p29.g.com, then I need to match.

My current pattern is r"(?P<url>p([^1,2])\.g\.com)", but this fails if the pattern is p##.g.com, basically any two digit number it fails on. There is no upper limit on the #, so it could be a 3 or 999 or anything in between.

I also tried r"(?P<url>p([^1,2])\d+\.g\.com)" but that does not match any number beginning with a 1 or a 2. For instance 11 or 23 are not matched, which I do want matched.

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  • try, p\d+\.g\.com ? Commented Oct 19, 2021 at 4:33
  • That's going to match p1.g.com and p2.g.com, which I don't want. Commented Oct 19, 2021 at 4:37

1 Answer 1

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Try this regex:

p(?:[03-9]|\d{2,})\.g\.com

Demo

Explanation:

  • Matches character p
  • Start of non-capturing group
    • Match one of:
      • The digits 0 or 3-9
      • Any double digit number like 10 or higher
  • Matches character .g.com
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