Feyo wrote:
> I'm trying to figure out how to write efficiently write a regex for
> domain names with a particular top level domain. Let's say, I want to
> grab all domain names with country codes .us, .au, and .de.
>
> I could create three different regexs that would work:
> regex = re.compile(r'[\w\-\.]+\.us)
> regex = re.compile(r'[\w\-\.]+\.au)
> regex = re.compile(r'[\w\-\.]+\.de)
>
> How would I write one to accommodate all three, or, better yet, to
> accommodate a list of them that I can pass into a method call? Thanks!
Just a point of interest: A correctly formed domain name may have a
trailing period at the end of the TLD [1]. Example:
foo.bar.com.
Though you do not often see this, it's worth accommodating "just in
case"...
[1]
http://homepages.tesco.net/J.deBoynePollard/FGA/web-fully-qualified-domain-name.html
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