From: "Aurélien Aptel" <aurelien.aptel+emacs@gmail.com>
To: "Óscar Fuentes" <ofv@wanadoo.es>
Cc: Tom Tromey <tom@tromey.com>,
syohex@gmail.com,
Emacs development discussions <emacs-devel@gnu.org>
Subject: Re: good examples of Emacs modules?
Date: Thu, 31 Mar 2016 23:29:19 +0200 [thread overview]
Message-ID: <CA+5B0FMs08XnqRLvFD+EzAMohoDYxffXLE92bwwD4=EmesFJCA@mail.gmail.com> (raw)
In-Reply-To: <87twjm5rc3.fsf@wanadoo.es>
Hi all,
On Thu, Mar 31, 2016 at 10:23 PM, Óscar Fuentes <ofv@wanadoo.es> wrote:
> consequences.) How objects created by the module system interact with
> garbage collection is an start.
Every emacs_value allocated inside a Lisp-exposed function becomes
invalid when control of the function ends (when it exits) unless you
return that value or you mark it global with the the
env->make_global_ref() API call.
As I was googling for a browseable emacs git repo to look quickly at
emacs-module.h I've noticed that Syohei Yoshida (cc'ed) has figured a
lot of things out by himself (kudos to you!) and has already made some
simple and not-so-simple modules:
- dead simple module that exposes an ioctl syscall to Lisp
https://github.com/syohex/emacs-eject
- json parser/encoder
https://github.com/syohex/emacs-parson
this one is interesting because he has done some benchmarks!
- libGeoIP binding
https://github.com/syohex/emacs-geoip
- libbarcode binding
https://github.com/syohex/emacs-barcode
- libmemcached binding
https://github.com/syohex/emacs-memcached
- libyaml binding
https://github.com/syohex/emacs-libyaml
- libqrencode binding
https://github.com/syohex/emacs-qrencode
- embedded Lua interpreter
https://github.com/syohex/emacs-lua
- embedded Ruby interpreter
https://github.com/syohex/emacs-mruby-test
- wrapper that lets you implement modules in Nim
https://github.com/yuutayamada/nim-emacs-module
I've looked briefly at most of them and I think they are good
examples. Especially how he only implements low-level functionality of
package xyz in a xyz-core module which is exactly how I envisioned it.
- Tom Tromey has also made a binding on libffi which means you can
call C stuff from Lisp without writing a module.
https://github.com/tromey/emacs-ffi
It seems the japanese-speaking Emacs community has picked up on the
modules feature quite fast. I found several article/blog about it. Too
bad I can't read it, it looks interesting :)
- article on how the emacs-eject module was done
http://syohex.hatenablog.com/entry/2015/12/16/185458
- article on the module feature with *benchmarks* and side-by-side
code comparison. Very cool!
http://coldnew.github.io/blog/2015/01/03_emacsdynamic/
Syohei, I really like what you did and I would be interested in your
feedback on what could be improved, what should we add&optimize in the
module API, etc.
Thanks!
next prev parent reply other threads:[~2016-03-31 21:29 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-03-30 23:17 good examples of Emacs modules? Paul Eggert
2016-03-31 14:49 ` Aurélien Aptel
2016-03-31 15:34 ` Óscar Fuentes
2016-03-31 16:53 ` Eli Zaretskii
2016-03-31 17:07 ` Óscar Fuentes
2016-03-31 17:39 ` Eli Zaretskii
2016-03-31 20:23 ` Óscar Fuentes
2016-03-31 21:29 ` Aurélien Aptel [this message]
2016-03-31 21:59 ` Óscar Fuentes
2016-04-01 7:18 ` Eli Zaretskii
2016-04-01 13:20 ` Óscar Fuentes
2016-04-01 14:02 ` Eli Zaretskii
2016-04-02 2:10 ` Syohei Yoshida
2016-05-03 20:48 ` Philipp Stephani
2016-05-03 22:16 ` Stefan Monnier
2016-04-01 6:23 ` Eli Zaretskii
2016-04-01 13:25 ` Óscar Fuentes
2016-04-01 14:07 ` Eli Zaretskii
2016-05-03 20:54 ` Philipp Stephani
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