From: Park Heesob <phasis@...>
Date: 2002-08-07T09:22:54+09:00
Subject: Re: sort problem

Hi,

"Ian Macdonald" <ian@caliban.org> wrote in message
news:20020806235442.GA17078@caliban.org...
> Hi,
>
> I have a file with data like this:
>
> ina1
> ina15
> inb12
> ina9
> inc10
> inda12
> inef14
> inab14
> inzz8
> inzz80
> inzz9
>
> etc.
>
> I want to sort it alphabetically on the first part of the string, then
> numerically on the second part.
>
....
>
>
> Ruby
> ----
>
> $/ = nil
> foo = gets.split("\n")
> r = /^([a-z]+)([0-9]+)$/
> foo = foo.sort {|a,b| c,d = r.match(a)[1,2]
>                       e,f = r.match(b)[1,2]
>                       c <=> e or d.to_i <=> f.to_i}
> puts foo
>
>
>
> So, what's wrong with the Ruby code? This is Ruby 1.6.7, in case that
> matters.
>
Try this:

$/ = nil
foo = gets.split("\n")
r = /^([a-z]+)([0-9]+)$/
foo = foo.sort {|a,b| c,d = r.match(a)[1,2]
                      e,f = r.match(b)[1,2]
                      (c <=> e).nonzero? || d.to_i <=> f.to_i}
puts foo

> Ian
> --
> Ian Macdonald               | Somewhere in Tenafly, New Jersey, a
> ian@caliban.org             | chiropractor is viewing "Leave it to
>                             | Beaver"!
>                             |
>                             |
>
Park Heesob