From: Piers Cawley <pdcawley@...>
Date: 2001-09-07T18:25:15+09:00
Subject: [ruby-talk:20975] Re: calling original method in overrided method?

Henry House <hajhouse@houseag.com> writes:

> I don't like the default behavior of String#to_i and String#to_f to return
> zero for any string that contains no recognizable numbers. I had thought to
> write overriding methods like so:
> 
> Class String
> 	def to_i
> 		fail "#{self} is not a valid integer" unless self =~ /^\d*$/

Note that this will only find you positive integers. Maybe you mean 
   
    self =~ /^[-+]?\d*$/

> 		# call original to_i
> 	end
> end
> 
> ...but I don't how (if it is possible?) to call the original to_i. Am I stuck
> with using a new method name or a custom string class?

Frankly I'd hope that 'super' would do the job, but it seems from the
rest of the thread that it doesn't...


-- 
Piers Cawley
www.iterative-software.com