From: Robert Klemme <shortcutter@...>
Date: 2007-02-14T22:55:15+09:00
Subject: Re: Dynamic function calls

On 14.02.2007 14:46, Tomas Fischer wrote:
> Hi,
> 
> I want to write an installer, which checks, if sth. is present on the
> target system and if not, the installer will install it. For example,
> the installer checks if zip is installed.
> 
> So I have tons of check functions and corresponding install funtions:
> 
> def check_zip
>   ...
>   return true / false
> end
> 
> def install_zip
>   ...
>   system(apt-get install zip)
> end
> 
> My idea is to use an array, which contains the result of the checking
> process
> array= [zip, ...] means, that we have to install zip. Is it possible to
> "connect" it
> to the corresponding install function?
> 
> for each element in array
>   call install_ array[index]
> end

array.each do |name|
   send "install_#{name}"
end

Kind regards

	robert