Javascript: extract URLs from string (inc. querystring) and return array

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I just use URI.js — makes it easy.

var source = "Hello www.example.com,\n"
    + "http://google.com is a search engine, like http://www.bing.com\n"
    + "http://exämple.org/foo.html?baz=la#bumm is an IDN URL,\n"
    + "http://123.123.123.123/foo.html is IPv4 and "
    + "http://fe80:0000:0000:0000:0204:61ff:fe9d:f156/foobar.html is IPv6.\n"
    + "links can also be in parens (http://example.org) "
    + "or quotes »http://example.org«.";

var result = URI.withinString(source, function(url) {
    return "<a>" + url + "</a>";
});

/* result is:
Hello <a>www.example.com</a>,
<a>http://google.com</a> is a search engine, like <a>http://www.bing.com</a>
<a>http://exämple.org/foo.html?baz=la#bumm</a> is an IDN URL,
<a>http://123.123.123.123/foo.html</a> is IPv4 and <a>http://fe80:0000:0000:0000:0204:61ff:fe9d:f156/foobar.html</a> is IPv6.
links can also be in parens (<a>http://example.org</a>) or quotes »<a>http://example.org</a>«.
*/

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