From: Brian Candler <b.candler@...>
Date: 2011-02-10T17:37:40+09:00
Subject: Re: Ruby coding help

Tridib Bandopadhyay wrote in post #980711:
> Hello All
>
> I want to code a method within a ruby source code. Is there any syntax
> to call that method(Which I coded) while writing a program in ruby.

Certainly. What exactly are you trying to do?

You can run arbitrary code from a string using eval(), or from a file 
using load(). This code can define methods.

Once a method is defined, then you can just call it in the usual way.

If you want to call a method with a name which is not known until 
runtime, use send().

>> str = "module M; def self.foo; puts 'whee!'; end; end"
=> "module M; def self.foo; puts 'whee!'; end; end"
>> eval str
=> nil
>> M.foo
whee!
=> nil
>> a = "M"
=> "M"
>> b = "foo"
=> "foo"
>> Object.const_get(a).send(b)
whee!
=> nil

-- 
Posted via http://www.ruby-forum.com/.