ee5342a8882c2fc7631fcffb5497e6597747887cTim Reddehase # does not escape special characters outside the matches :-(
ee5342a8882c2fc7631fcffb5497e6597747887cTim Reddehase #highlight.format { |word| "<span class=\"highlight\">#{h word}</span>" }
ee5342a8882c2fc7631fcffb5497e6597747887cTim Reddehase html = h highlight.format { |word| "#BEGIN##{word}#END#" }
ee5342a8882c2fc7631fcffb5497e6597747887cTim Reddehase html.gsub( /#BEGIN#(.+?)#END#/, "<span class='highlight'>\\1</span>" ).html_safe