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Admin
Looks like Java. In which case, there is a dedicated URL object with some useful functions for getting those parts by name. I suppose this is on the level of rolling your own date-handling code.
Admin
Why are they passing "\." to the split function? Does it treat any string as regex?
Admin
And more to the point, why they convert (almost) all British domains into
co.ukorac.ukorgov.ukor whatever. (www.nhs.ukandwww.parliament.ukand a few recent things would he OK, but not the rest.)Admin
Possibly, because the code-monkey thought "Not my problem."
Admin
You're assuming that the code monkey thought.
Admin
Note that finding the authorative domain part of a domain is not a trivial task. The best way is to use a public resource like the Mozilla Public Suffix List: https://wiki.mozilla.org/Public_Suffix_List
Admin
My guess: As the all-parts-but-the first approach didn't work out as the intended TL+1 result, the went for TLD only. And the
breakjust did the job. — Another high-performance hero was born… ("See, they just added a single word and fixed the entire code base!")Admin
It's really difficult to know how many pieces to chop off the front of a hostname to get the top-level domain name, so difficult that it's done by reference to a set of rules that changes in a semi-regular fashion and that you need to re-download periodically. You really can't guess it correctly any other way; there are too many complicated exceptions. (Without that list, you simply can't evaluate the safety constraints for cookies correctly.)
Those rules are written in Javascript, of course. People whose code runs in a web-browser may not realise they exist.
Admin
It is not as bad as doing your own date parsing; in that it is not so complex a decent developer with some careful attention to detail can't get it right. However its certainly true that URL parsing is complex enough with options components, N subdomains, rules about implied schemes, alternate host representations, that doing it correctly is a lot of work and you almost certainly shouldn't.
But lets be real here 9/10 devs out there are going be faced with an URL parsing problem and are going to just say 'regex derp derp'
Admin
Assuming this is Java, yes. String.split() treats the parameter as a regex, so you always have to remember to escape special characters like '.'. That particular WTF is on Java, not whoever wrote this code.
Admin
my sites, have many sub-domains - one per protocol..... so ftp.example.com www.example.com etc.etc.
Admin
Why are those two very very clearly governmental organisations not in the .gov.uk part?!
Admin
Because any system involving human judgment must NOT be completely systematic; that's why.
Devs get all twitchy whenever a rule has exceptions. The rest of humanity prefers a world of mostly exceptions with a few (and partly contradictory) organizing rules loosely followed sometimes. It has been, is, and will be ever thus.
Admin
In my experience, it's more when the rules to go by are too vague or otherwise poorly defined. Exceptions aren't a problem when the specification is clear.
Admin
Hello, everyone. I was wondering if there are any game developers here? I need some help with code and graphic design.