class ActiveModel::AttributeMethods::ClassMethods::AttributeMethodMatcher

def initialize(options = {})
  options.symbolize_keys!
  @prefix, @suffix = options[:prefix] || '', options[:suffix] || ''
  @regex = /^(#{Regexp.escape(@prefix)})(.+?)(#{Regexp.escape(@suffix)})$/
end

def match(method_name)
  if matchdata = @regex.match(method_name)
    AttributeMethodMatch.new(method_missing_target, matchdata[2])
  else
    nil
  end
end

def method_missing_target
  :"#{prefix}attribute#{suffix}"
end

def method_name(attr_name)
  "#{prefix}#{attr_name}#{suffix}"
end