From: Xavier Noria <fxn@...>
Date: 2007-09-19T20:46:30+09:00
Subject: Re: Indenting strings - elegant alternatives?

On Sep 19, 2007, at 1:13 PM, Ronald Fischer wrote:

> Just in case someone would like to contribute ideas of elegant code:
>
> PROBLEM:
>
> Given a string of lines (for example, "abc\nde\nfgh\n") and a  
> number n,
> produce a string of the same lines, but each line indented by n  
> spaces.
> If the original string does NOT end in \n, it is OK (but not required)
> to have it ending in \n in the result.
>
> Speed is not an issue; I'm mainly looking EITHER for compact/elegant
> code in Core Ruby (noing well that elegance is a very subjective
> criterium), OR for some library function which already has solved  
> this.
>
> Here is my own (pretty straightforward) solution to the problem:
>
> def indent(n,s)
>   (s.split.map {|x| (' '*n)+x}.join("\n"))+"\n"
> end

Another solution is:

   s.gsub(/^/, ' ' * n)

-- fxn