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@bhauman
Created December 2, 2009 02:08
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sometimes you you ask for a hostname and you want to offer your user the option of entering the 'http://' or not
def scheme_host(url)
begin
p_uri = URI.parse(url)
p_uri.scheme = 'http'
return nil if p_uri.host == 'http'
p_uri.host = url if !p_uri.host
p_uri.select(:scheme, :host).join('://')
rescue URI::InvalidURIError
nil
rescue URI::InvalidComponentError
nil
end
end
#shoulda tests
scheme_host('google.com').should == 'http://google.com'
scheme_host('http://google.com').should == 'http://google.com'
scheme_host('http://goog__le.com').should == nil
scheme_host('http://http://goog__le.com').should == nil
scheme_host('http://').should be_nil
scheme_host('/google.com').should be_nil
scheme_host('http:/google.com').should be_nil
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