From: Euan Mee <lucid@...>
Date: 2002-04-10T14:41:49+09:00
Subject: Re: Easy character comparisons

On 10 Apr 2002, David wrote (more or less):
> On Wed, 10 Apr 2002, Sean O'Dell wrote:
> > Today I spent a little time debugging something I "didn't expect."  I
> > evaluated (using if) string[index] against a single character in a string
> > and for awhile, I couldn't figure out why it wasn't working.  Then I
> > realized that string[index] returns a number, not a string containing a
> > single character.  Example:
> >                 "string"[0] == "s"  =>  false
> > I ended up having to change the expression to something like this:
> >                "string"[0..0] == "s"  =>  true
> > Is there a more elegant way of doing this sort of comparison?  My fudged way
> > seems awkward.
> 
>
> You could do:
>
>                            "string"[0].chr == "s"
>
> Not shorter, but maybe nicer-looking.

For me (a  relative Nuby) this seems by far the most legible of the 
alternatives posted.



Cheers,
     Euan