normalize_space

# File lib/rexml/functions.rb, line 224
    def Functions::normalize_space( string=nil )
      string = string(@@context[:node]) if string.nil?
      if string.kind_of? Array
        string.collect{|x| string.to_s.strip.gsub(/\s+/m, ' ') if string}
      else
        string.to_s.strip.gsub(/\s+/m, ' ')
      end
    end