title: convert utf8 code point strings like <U+0161> to utf8
body: <p>I have a text file which contains some kind of fallback conversions of Unicode characters (the Unicode code points in angle brackets). So it contains e.g. <code>foo&lt;U+017E&gt;bar</code> which should be "foošbar". Is there an easy way in R to convert the whole file to UTF8 with these characters converted? Unfortunately I am on Windows and can't find a supported UTF-8 locale.</p>