From: Giampiero Zanchi <cidza@...>
Date: 2011-10-18T18:16:27+09:00
Subject: Re: Ruby functions to split numbers

ideal one wrote in post #1026668:
> HI All,
>        I have couple of requirements to be handled in ruby, it will be
> great if anyone can shed some light on this.
>
> 1) i have a 8 digit number, to be used in my code as 2 parts(split),
> like shown below.
>
> Number = "34502305"   # I put them in double quotes, so that leading
> zeros are preserved.
> Var1 = 345      # split firs 3 digits always
> Var2 = 02305    # split remaining digits with preserving leading Zero if
> it exists
>
> i tried doing something like this, not sure if its correct
>
>  sprintf("%2d", number)
>
> I am not able to preserve leading zero or i get fixnum to string error
>
> Cheers

if your numbers are Fixnum, maybe you can do

n = 34502305
n2 = n % 100_000
n1 = (n - n2) / 100_000
s1 = n1.to_s.rjust(3,"0")
s2 = n2.to_s.rjust(5,"0")

of course it does not do the trick in some situations, eg when n < 
100_000

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