From: David Alan Black <dblack@...>
Date: 2002-04-16T04:10:07+09:00
Subject: Re: Pascal to Ruby

Hello --

On Tue, 16 Apr 2002, Chris wrote:

> In article <46487A0D3619D511BF860000F6B99827D2C1CA@PRESGGS17>,
>  "Firestone, Mark - Technical Support"
>  <mark.firestone@gossgraphic.co.uk> wrote:
>
> > Well, ya... I have a bunch of text, in (in pascal terms) an array of string.
> >
> > I want to be able to insert somewhere so...
>
> Something like this perchance?
>
> class String
>    def insert ( position, insert_string )
>       "#{self[0...position]}#{insert_string}#{self[position+1..-1]}"
>    end
> end
>
> "foo".insert 1, "bar"    #    "fbaroo"

I was trying something along similar lines with Array.  I don't know if it's
useful but I really like all the verbs in it:

  class Array
    def insert(e,i)
      m,n = self[0..i-1], self[i..-1]
      replace m
      push e
      concat n
      return self
    end
  end

:-)

See also the earlier discussions of the pros and cons of a Perl-like
"splice" method in Ruby.


David

-- 
David Alan Black
home: dblack@candle.superlink.net
work: blackdav@shu.edu
Web:  http://pirate.shu.edu/~blackdav