From: Navindra Umanee <navindra@...>
Date: 2005-02-08T10:45:39+09:00
Subject: Re: Delayed string interpolation

Hal Fulton <hal9000@hypermetrics.com> wrote:
>    def interp(x,y)
>      "The sum of #{x} and #{y} is #{x+y}"
>    end
> 
>    str = interp(210,27)  #  "The sum of 210 and 27 is 237"

Unless I'm mistaken, this recomputes the whole string every time
interp is called.  I wanted to compute the common parts of the string,
cache it somewhere, and then compute the rest in another context.

Hence, a 2-step interpolation.

Cheers,
Navin.