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Message |
< Erlang ~ Newbie: distel erl-complete |
| Long John Silver |
 Posted: Sun Jul 13, 2008 2:44 pm |
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Joined: 29 Jan 2008
Posts: 5
Location: Monza - Italy
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Hello all!
I'm new to the forum, new to erlang. I want to learn to make some simple programs and decided to start with erlang.
I am reading Armstrong book and I am facing my first problems.
I use distel with emacs on my linux box which seems to be quite a standard choice but the main function I suppose to use of distel "erl-complete" does not work. No errors or other messages, simply nothing.
Maybe some wrong setup of emacs.
Here below is my setup taken somewhere in the web:
Code: ;; This is needed for Erlang mode setup
(setq erlang-root-dir "/usr/lib64/erlang")
(setq load-path (cons "/usr/lib64/erlang/lib/tools-2.6/emacs" load-path))
(setq exec-path (cons "/usr//lib64/erlang/bin" exec-path))
(require 'erlang-start)
;; This is needed for Distel setup
(let ((distel-dir "/usr/share/distel/ebin"))
(unless (member distel-dir load-path)
;; Add distel-dir to the end of load-path
(setq load-path (append load-path (list distel-dir)))))
(require 'distel)
(distel-setup)
;; Some Erlang customizations
(add-hook 'erlang-mode-hook
(lambda ()
;; when starting an Erlang shell in Emacs, default in the node name
(setq inferior-erlang-machine-options '("-sname" "emacs"))
;; add Erlang functions to an imenu menu
(imenu-add-to-menubar "imenu")))
;; A number of the erlang-extended-mode key bindings are useful in the shell too
(defconst distel-shell-keys
'(("\C-\M-i" erl-complete)
("\M-?" erl-complete)
("\M-." erl-find-source-under-point)
("\M-," erl-find-source-unwind)
("\M-*" erl-find-source-unwind)
)
"Additional keys to bind when in Erlang shell.")
(add-hook 'erlang-shell-mode-hook
(lambda ()
;; add some Distel bindings to the Erlang shell
(dolist (spec distel-shell-keys)
(define-key erlang-shell-mode-map (car spec) (cadr spec)))))
Thanks in advance for your help
LJS |
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| michal |
| Posted: Tue Jul 15, 2008 7:17 am |
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User
Joined: 20 Jul 2006
Posts: 44
Location: London
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Hi,
I use distel with wrangler (refactoring tool for Erlang) downloaded from http://www.cs.kent.ac.uk/projects/forse/ Installation procedure says you need to add the following to your ~/.emacs file:
Code:
(add-to-list 'load-path "/home/michal/dev/distel-wrangler-0.3/elisp")
(require 'distel)
(distel-setup)
and following to your ~/.erlang file:
Code:
code:add_pathz("/home/michal/dev/distel-wrangler-0.3/ebin").
Then you also need to start erlang node with short name, let's say: erl -sname emacs, and the first time you will try to use any of the distel features like M-? for listing available module functions, distel will ask you for the host name. Give it emacs@nameofyourhost.
If the above works, start extending your .emacs file with other hooks and features found in the web.
/Michal |
_________________
http://www.erlang-consulting.com |
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| Long John Silver |
| Posted: Sat Jul 26, 2008 12:22 pm |
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Joined: 29 Jan 2008
Posts: 5
Location: Monza - Italy
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I use Gentoo and cannot find a wrangler ebuild. While distel is available in Gentoo repository.
Anyway I do not see anything wrong in my setup. It is similar to the one you posted. Any other idea?
LJS |
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| Long John Silver |
| Posted: Thu Aug 07, 2008 9:46 am |
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Joined: 29 Jan 2008
Posts: 5
Location: Monza - Italy
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OK maybe I found the problem.
It seems that the distel is not connected to any node or it cannot connetc.
How can I check this?
LJS |
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| Mazen |
| Posted: Thu Aug 07, 2008 9:51 am |
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Joined: 20 Jul 2006
Posts: 164
Location: London
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nodes(). in the shell gives you a list of nodes it is connected to, it will be empty if it is not connected to anything (needless to say  )
use net_kernel:connect(Nodename). to connect to the other node. If that doesn't work (it will return true/false) then check the cookie of the node and make sure it is the same. |
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| Long John Silver |
| Posted: Thu Aug 07, 2008 8:05 pm |
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Joined: 29 Jan 2008
Posts: 5
Location: Monza - Italy
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I started an elang shell from a terminal with
Then I started a shell in emacs and tried to connect to the node above:
[code]3> net_kernel:connect(emacs).
false.[code]
Why?
What's the problem?
Cookies should be set by the file .erlang.cookie in my /home
LJS[/code] |
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| Mazen |
| Posted: Fri Aug 08, 2008 8:39 am |
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Joined: 20 Jul 2006
Posts: 164
Location: London
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your emacs node's nodename is probably not emacs... it's emacs@something...
try net_kernel:connect('emacs@something')
also, when trouble shooting, explicitly check that the cookies are the same. |
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| Long John Silver |
| Posted: Fri Aug 08, 2008 9:22 am |
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Joined: 29 Jan 2008
Posts: 5
Location: Monza - Italy
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Now I cannot try but yesterday night I made some test.
From an erlang shell in emacs:
Code: >node().
>nonode@nohost
or something similar.
I tried to open the shell after having activated the erlang-mode (in this case -sname is set to emacs) but I get an error.
Maybe the problem is the firewall (iptables)?
Is it possible?
LJS |
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| wuji |
| Posted: Mon Aug 27, 2012 6:52 am |
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Joined: 10 Aug 2012
Posts: 654
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| landy54321 |
| Posted: Wed Aug 29, 2012 2:53 am |
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Joined: 29 Aug 2012
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| dongdongwu |
| Posted: Thu Sep 20, 2012 2:09 am |
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