Live Search

if params['search_text'].strip.length > 0

       terms = params['search_text'].split.collect do |word|
            "^#{word.downcase}"
          end

        b=[];
          terms.to_s.each_byte { |byte| (b.push(byte.chr) if
!b.include?(byte.chr)) if byte.chr.match(/\W+/) }

        b.each do |c|
          terms=terms.to_s.gsub(c) { "\\#{c}"}.to_a
        end

          @users = User.find(
            :all,
            :conditions => [
              ( ["(LOWER(email) RLIKE?)"] * terms.size ).join(" AND "),
              * terms.flatten
              ]
          )

Hi, I'm trying to implemented a live search that only finds data that is
prefixed with the user input (i.e. input=> 'bo' -> output => 'bob'
'bot'). Furthermore, I need to be able to accept a variable number of
special characters. In the middle of my code I replaced special
characters with '\', but I'm not sure how to ESCAPE '\' in the SQL at
the end.

Anyway, if there's a better way to do this, please let me know!!

Thanks!