Deane-
My response is embedded.
-Josh
[EMAIL PROTECTED] wrote on 04/19/2006 12:46:24
PM:
> 1. URL parsing ([EMAIL PROTECTED])
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Wed, 19 Apr 2006 10:04:35 -0500
> From: [EMAIL PROTECTED]
> Subject: URL parsing
> To: [email protected]
> Message-ID:
>
<[EMAIL PROTECTED]>
>
> Content-Type: text/plain; charset="us-ascii"
>
> I'm doing some splitting of URLs, and things are getting more and more
> complicated, what with suddenly needing to allow two, three, or even
four
> character TLDs (.us, .gov, .info). I originally thought I'd only need to
> pass a few common threes--such as .com.
>
> Is there a standard Perl library routine (can't use CPAN) that divides
up
> URLs? This seems like a common enough task that this particular wheel
> might already exist. All I need to do is split something like
> "foo.bar.com" into "foo" and "bar.com". It's for the second bit, the
> domain, where this issue is suddenly sprouting horns and a pointy tail.
> Oh, it also needs to ignore any trailing thingies like
> "foo.bar.com/ignore/this/".
Not sure of any package, but I know there is an orielly PHP email
verification example with everything that was current as of the printing I
have for their php book in 2004. I also believe ICANN keeps a current list
of valid ones somewhere upon their site.
>
> Current code is:
>
> if ($in =~ /^[^\.]+?\.(com|gov|net|org)$/) {
> $domain = $in;
> } else {
> $in =~ m{^(.*)\.(.+\.(com|gov|net|org)).*$};
> $domain = $2;
> $child = $1;
> }
As far as I know, aside from the ISO 2-letter country abbreviations, the
TLDs are: biz, com, gov, info, net, museum, org
Though i'm not positive about museum.
>
> where $in is the URL, less any prefix. The prefixes, "http://"; or
> "https://";, are already handled by preceding lines, as are any "trailing
> thingies."
>
> I've thought of using [a-z]{2,4} to replace the list in the regexps, but
> that places a big ol' "CAVEAT EMPTOR" in front of the users--one I hope
> might be avoidable. Plus, I'm afraid of other things popping up, like,
oh,
> "dnr.state.wi.us", which is a real URL for Wisconsin DNR, or something
> like "foo.us.gov". Both of which would FAIL the current code, as well
as
> the [a-z]{2,4} kludge.
>
> HELP!
>
> TIA,
>
> Deane
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