executing Ruby from Emacs buffer

executing Ruby from Emacs buffer

[ishi soichi]

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Cococa Emacs 23.2
GNU Emacs 23.2.1 (x86_64-apple-darwin10.4.0, NS apple-appkit-1038.32) of
2010-08-27
ruby 1.9.3p0 (2011-10-30 revision 33570) [x86_64-darwin10.8.0]

I am not sure if this question is to be asked here, but I'll try.

I'm trying to run Ruby codes from Emacs.

(defun execute-ruby ()
  (interactive)
  (let (buf)
    (setq buf
  (get-buffer-create "*result ruby execution*"))
    (call-process-region
     (region-beginning) (region-end) "ruby" nil buf nil)
    (display-buffer buf)))

as you can see, this piece of Elisp code runs a region where Ruby code is
written.

# -*- encoding: utf-8 -*-
require 'twitter'
Twitter.configure do |config|
  config.consumer_key = ''
  config.consumer_secret = ''
  config.oauth_token = ''
  config.oauth_token_secret = ''
end
p Twitter.user_timeline("soujiro0725").first.text


The Ruby code utilizes a gem library, called 'twitter', which enables to
tweet or get timelines by writing simple codes.
Of course, this particular gem library is installed and it perfectly runs
in a regular shell, such as zsh or bash.

But for some reason, it gives an error when executed in Emacs buffer.

ruby_twitter.rb:2:in `require': no such file to load -- twitter (LoadError)
from ruby_twitter.rb:2

Looks like Emacs cannot find the gem library.

How can I have Emacs find the proper library or gems?

soichi

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Re: executing Ruby from Emacs buffer

[Xah Lee]

On May 10, 3:28 am, ishi soichi <soichi...@gmail.com> wrote:
> Cococa Emacs 23.2
> GNU Emacs 23.2.1 (x86_64-apple-darwin10.4.0, NS apple-appkit-1038.32) of
> 2010-08-27
> ruby 1.9.3p0 (2011-10-30 revision 33570) [x86_64-darwin10.8.0]
>
> I am not sure if this question is to be asked here, but I'll try.
>
> I'm trying to run Ruby codes from Emacs.
>
> (defun execute-ruby ()
>   (interactive)
>   (let (buf)
>     (setq buf
>   (get-buffer-create "*result ruby execution*"))
>     (call-process-region
>      (region-beginning) (region-end) "ruby" nil buf nil)
>     (display-buffer buf)))
>
> as you can see, this piece of Elisp code runs a region where Ruby code is
> written.
>
> # -*- encoding: utf-8 -*-
> require 'twitter'
> Twitter.configure do |config|
>   config.consumer_key = ''
>   config.consumer_secret = ''
>   config.oauth_token = ''
>   config.oauth_token_secret = ''
> end
> p Twitter.user_timeline("soujiro0725").first.text
>
> The Ruby code utilizes a gem library, called 'twitter', which enables to
> tweet or get timelines by writing simple codes.
> Of course, this particular gem library is installed and it perfectly runs
> in a regular shell, such as zsh or bash.
>
> But for some reason, it gives an error when executed in Emacs buffer.
>
> ruby_twitter.rb:2:in `require': no such file to load -- twitter (LoadError)
> from ruby_twitter.rb:2
>
> Looks like Emacs cannot find the gem library.
>
> How can I have Emacs find the proper library or gems?

the issue is for the ruby interpreter to know it's lib paths, not
emacs. So, i don't think your issue lies in emacs.

this might be what you need or helpful.

〈Emacs Lisp Wrapper for Perl/Python/Ruby Scripts〉
http://xahlee.org/emacs/elisp_perl_wrapper.html

feel free to ask if you have more questions.

 Xah

Re: executing Ruby from Emacs buffer

[Andrea Crotti]

ishi soichi <soichi777@gmail.com> writes:

> Cococa Emacs 23.2
>
> GNU Emacs 23.2.1 (x86_64-apple-darwin10.4.0, NS apple-appkit-1038.32)
> of 2010-08-27
> ruby 1.9.3p0 (2011-10-30 revision 33570) [x86_64-darwin10.8.0]
>
> I am not sure if this question is to be asked here, but I'll try.
>
> I'm trying to run Ruby codes from Emacs.
>
> (defun execute-ruby ()
>   (interactive)
>   (let (buf)
>     (setq buf
>  (get-buffer-create "*result ruby execution*"))
>     (call-process-region
>      (region-beginning) (region-end) "ruby" nil buf nil)
>     (display-buffer buf)))
>
> as you can see, this piece of Elisp code runs a region where Ruby code
> is written.
>
> # -*- encoding: utf-8 -*-
> require 'twitter'
> Twitter.configure do |config|
>   config.consumer_key = ''
>   config.consumer_secret = ''
>   config.oauth_token = ''
>   config.oauth_token_secret = ''
> end
> p Twitter.user_timeline("soujiro0725").first.text
>
>
> The Ruby code utilizes a gem library, called 'twitter', which enables
> to tweet or get timelines by writing simple codes.
> Of course, this particular gem library is installed and it perfectly
> runs in a regular shell, such as zsh or bash.
>
> But for some reason, it gives an error when executed in Emacs buffer.
>
> ruby_twitter.rb:2:in `require': no such file to load -- twitter
> (LoadError)
> from ruby_twitter.rb:2
>
> Looks like Emacs cannot find the gem library.
>
> How can I have Emacs find the proper library or gems?
>
> soichi

I think that if you are calling ruby as an external process than emacs
doesn't have anything to do with the fact that a library is not found.
More probably it's not the right interpreter or something similar..

Anyway ruby-mode http://emacswiki.org/emacs/RubyMode does all these
things and more, why not try that?

-- 
GNU Emacs 24.1.50.2 (x86_64-unknown-linux-gnu, GTK+ Version 3.4.1)
 of 2012-04-29 on dell

Re: executing Ruby from Emacs buffer

[Peter Dyballa]

Am 10.05.2012 um 12:28 schrieb ishi soichi:

>     (region-beginning) (region-end) "ruby" nil buf nil)

Assume you have two ruby binaries on your system. One of them, installed via Fink or Macports or such, is configured to use the gem library, the other, Apple's one, not. In shell you could invoke 'which ruby'. Then substitute the simple "ruby" string with the absolute pathname returned in shell. Could be this works better...

--
Greetings

  Pete

Computers are good at following instructions, but not at reading your mind.
	- D. E. Knuth, The TeXbook, Addison-Wesley 1984, 1986, 1996, p. 9