From: "Jesús Gabriel y Galán" <jgabrielygalan@...>
Date: 2008-05-14T22:10:23+09:00
Subject: Re: Handling of arrays

On Wed, May 14, 2008 at 6:38 AM, Clement Ow
<clement.ow@asia.bnpparibas.com> wrote:
> Jesús Gabriel y Galán wrote:
>  >
>  > Hope this helps,
>  >
>  > Jesus.
>
>  thanks Jesus, that was really helpful! However I altered the code alil
>  cause ruby rendered an error to me saying that it cant convert Array
>  into string (hmmm, dunno if that's normal) for this line(suppose it's
>  for the arrays in the hash, exceptions_by_path):
>
> >files = exceptions_by_path.inject(Dir.glob("#{path}/*")) {|result,
>  ex| result.reject{|x| x =~ Regexp.new(ex)}}

Sorry, that's what I get for not testing the code. I think (I'm a bit
dense right
now, so this might not work) that what I meant was this:

exceptions_by_path = {}
exceptions_by_path["/home/jesus"] = ["\.txt", "\.sql"]
exceptions_by_path["/home/jesus/applications"] = ["\.sh", "\.bin"]
# [...]

and then

paths.each do |path|
  files = exceptions_by_path[path].inject(Dir.glob("#{path}/*")) {|result,
ex| result.reject{|x| x =~ Regexp.new(ex)}}
end

so you get the exceptions for that path, which is an Array that should
work with
inject as I was expecting.

>  And btw dont get me wrong, Struct is sweet too, just that i didnt want
>  to have a fixed number of exceptions for each path. ;)

FileInfo = Struct.new :exceptions, :other_value, :yet_another
paths_info = {}
paths_info["/home/jesus"] = FileInfo.new(["\.txt", "\.sql"], "other
value", "another")

The number of exceptions is not fixed, as you can see above,
I am storing an array in the :exceptions field, so each path can
have a different number of exception patterns.

Jesus.