IP字符串的简单拆分。
> (lispworks:split-sequence "." "127.0.0.1")
("127" "0" "0" "1")URL的简单分割：
> (lispworks:split-sequence ".:/" "http://127.0.0.1/foo/bar.html"
:coalesce-separators t)
("http" "127" "0" "0" "1" "foo" "bar" "html")