```ruby
class ApplicationController < ActionController::Base
  # Prevent CSRF attacks by raising an exception.
  # For APIs, you may want to use :null_session instead.
  protect_from_forgery with: :exception

  def shelfmarkToOrder(shelfmark)
    letters = shelfmark.match(/^((Folio )|(Pamph. )|(Ref. ))?[A-Z]+/)[0]

    if(letters[0..4] == "Ref. ")
      letters = letters[5..letters.length]
    #else if(inHub && letters[0..4] == "Folio. N")

    end

    #TODO: if hub, lcSection, etc
    subclass = HubLcSection.where(:letters => letters).first

    if(!subclass)
      return -1
    end



    token = Integer(subclass.token)

    digits = Integer(shelfmark.match(/(\d+)/)[0])
    digits = digits.to_s.rjust(4, "0") # add prepending 0s

    res = Float(token.to_s + '.' + digits)
    return res;
  end

end
```

Add floating digit of precision for shelfmarks
user
```ruby
class ApplicationController < ActionController::Base
  # Prevent CSRF attacks by raising an exception.
  # For APIs, you may want to use :null_session instead.
  protect_from_forgery with: :exception

  def shelfmarkToOrder(shelfmark)
    letters = shelfmark.match(/^((Folio )|(Pamph. )|(Ref. ))?[A-Z]+/)[0]

    if(letters[0..4] == "Ref. ")
      letters = letters[5..letters.length]
    #else if(inHub && letters[0..4] == "Folio. N")

    end

    #TODO: if hub, lcSection, etc
    subclass = HubLcSection.where(:letters => letters).first

    if(!subclass)
      return -1
    end



    token = Integer(subclass.token)

    digits = Integer(shelfmark.match(/(\d+)/)[0])
    digits = digits.to_s.rjust(5, "0") # add prepending 0s

    res = Float(token.to_s + '.' + digits)
    return res;
  end

end
```
assistant