[Rails] How to convert the HTML entities into UTF-8 character set, in ruby 1.8.7

Hi,

Is there away to convert the HTML entities into UTF-8 character set, in ruby 1.8.7? 

(For example, if we consider "ö", convert the entity number "ö" into "\303\266". Or at least converting the html entity to the character "ö" )

Thank you

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