From: Tim Pease <tim.pease@...>
Date: 2007-01-31T04:42:23+09:00
Subject: Re: Howto parse or eval a config-file?

On 1/30/07, James Edward Gray II <james@grayproductions.net> wrote:
> On Jan 30, 2007, at 1:30 PM, ChrisKaelin wrote:
>
> > I'm currently looking for a simple way to parse a configuration file
> > in a ruby-script. Is eval a good way to do that? YAML seems a bit an
> > overkill to learn for such a small task...
>
> YAML is pretty darn simple.  You be the judge...
>
> > the config-file:
> >
> > Conf = {
> >       'host'        => 'localhost',
> >       'title'       => 'TIITEL',
> >       'mailhost'    => 'mailhost'
> > }
>
> The equivalent YAML:
>
> ---
> host: localhost
> title: TIITEL
> mailhost: mailhost
>
> > the eval-code:
> >
> > begin
> >               eval File.new(configFile).read
> >               rescue ScriptError=>e
> >               warn("An error occurred while reading #{$configFile}: ", e)
> >       else
> >               $host             = Conf['host']
> >               $title            = Conf['title']
> >               $mailhost         = Conf['mailhost']
> > end
>
> And loading code:
>
> conf = File.open("path/to/conf.yaml") { |f| YAML.load(f) }
>

conf = YAML.load_file("path/to/conf.yaml")

TwP