From: Jani Monoses <jani@...>
Date: 2004-09-23T20:00:42+09:00
Subject: Re: String#pad  ?

Martin DeMello wrote:
> Jani Monoses <jani@iv.ro> wrote:
> 
>>Hello
>>
>>is there a nicer way of padding a string to a power of two length than for example
>>
>>data = data.ljust((data.length+3) & ~3)
>>
>>this looks too much like C :)
>
> 
> And doesn't even work :)

It does work the power of two is 4.That's why I said for example :)
Ok my question meant a generic power of two but pasted the line from an actual program, my 
bad.


> class Fixnum
>   def lg
>     self.to_s(2).length - 1
>   end
> end
> 
> class String
>   def ljust_pow2
>     self.ljust(2 ** (self.length.lg + 1))
>   end
> end
> 
> p "hello world".ljust_pow2

This is even more work that the line above :(

Jani