Is there a common algorithm to cut urls from some string?
For example:
string1 = "bla bla bla http://bla.domain.com more blah blah nohttp.domain.with.no.protocol more text bla bla"
(string2, urls) = wild_magic_appears(string1)
string2 = "bla bla bla more blah blah more text bla bla"
urls = ["http://bla.domain.com", "nohttp.domain.with.no.protocol"]
I know that regex is the best solution for that, but I'm interested in non-regex solution
In C# you can do this for urls that starts with "http://"
string str1 = "bla bla bla http://bla.domain.com more blah blah nohttp.domain.with.no.protocol";
string [] array = str1.Split(' ');
Listr<string> urls= new List<string>();
foreach(var s in array)
{
if(s.StartsWith("http://")) // you can add here other conditions that match url
urls.Add(s);
}
Ruby,split colon and spaces.
only for urls starts with http:// and your string part don't have a colon.
>a = "bla bla bla http://bla.domain.com more blah blah nohttp.domain.with.no.protocol more text bla bla"
>a.split(":")[0].to_s[-4..-1] + ":" + a.split(":")[1].split()[0].to_s
=> "http://bla.domain.com"
for urls with only dots.I can't think of a good solution.
Think of a new solution.just to split "http://" or "https://". This one is better to deal with user's colon.
>a = "bla bla bla http://bla.domain.com more blah blah nohttp.domain.with.no.protocol more text bla bla"
>("http://"+a.split("http://")[1].to_s).split()[0]
=>"http://bla.domain.com"