Future Gadgets 42
If you love GNU/Emacs, If you love to program in an editor instead of big slow IDE but still enjoy to have a handy code editor then FG42 is the right choice for you.
If you need help, or even want to just say hello, try our IRC channel on freenode: #5hit.
In order to run FG42 you need GNU Emacs >= 25. FG42 uses several extensions internally
which each of the has different external dependencies. To gain more information about external
dependencies ( If we failed to tell you inside the FG42 ) just run the
In order to install FG42, issue the following commands:
# clonse the FG42 repository in ~/.fg42 directory $ git clone git://github.com/FG42/FG42.git ~/.fg42/ # You can clone it where ever your want $ cd ~/.fg42/ $ make install
Since the installer script uses
sudo, during the installation process,
you'll have to enter your password. Make sure that you're user account has
If you suffer from poor internet connection (like people in my homeland),
you can also download the tarball from release section and extract the tarball
$HOME directory. So you're going to end up with
.fg42 directory in
$HOME and all you have to do is to install it using
make install command.
NOTE: Please note that the tarball releases are still experimental and might have some issues since they contain the elisp packages as well. In case of any problem please report the issue.
Enjoy using FG42 ;)
After installation there would be a file at
~/.fg42.el which is the user specific
configuration of FG42. You can configure your copy of FG42 using this file.
Also you can generally use this file to configure Emacs as well.
Terms & Concepts
FG42 introduced some new features to the Vanilla Gnu/Emacs. So you migh encounter several of these features during your journey. It's a good idea to at least know what you're dealing with.
FG42 created around the idea of extensions. Each extension extends the FG42 functionality for a certain language or use case.
clojure extension adds support for a integrated development environment for
clojure language. All the configuration
related to this environment leave inside that extension. By default, all the extensions which ships with FG42 are enabled. In order
to disable any extension which you might not need, just comment them out in your user configuration file in
~/.fg42.el. For example
here is my own list:
In order to learn more about each extension you can use
Abilities are the smallest piece of configuration which add support for a certain functionality to FG42. Each extension contains several abilities.
Using abilities you can choose the set of abilities you like and disable those which you don't like. For example
ido are two different
library which conflicts with each other by we have an ability for each of them in the system, so you can choose which one to use and disable the other one.
In order to disable any ability, just add them to your configuration file in
~/.fg42.el. For example my current disabled abilities are:
(disable 'rbenv-global 'helm 'spell 'linum 'ivy 'smart-mode-line 'desktop-mode)
In the above list I disabled
helm because I want to use
ido. At the moment there is no way to find out about all the enabled abilities at runtime. Or
discover what abilities present in any extension (You can take a look at extension docs using
describe-extension command) at runtime. But I'll add something
If you're familiar with GNU/Emacs you're not going to have a problem with getting help. But just to clrearify here is a list of keybindings that may guide you during your experience:
|describe-extension||It's going to ask you an extension name and show you the documentation of that extension|
||describe-mode||All the information and keybindings of your current modes. e.g open of a
How to implement your own extension:
In this part we will explore the extensibility features of the FG42. As an example
we will add LaTeX autocompletion and other useful features to our emacs based on AUCTeX
and company-auctex company-auctex.
We can install the required package manually by
install M-x package-install RET company-auctex RET or the FG42
would do this for us based on its configurations.
Assume that our extension is called latex, to this end we are needed to create a file and a directory in the following
First we are going to explore the latex.el. your file needs to include these parts:
(require 'fpkg) (require 'fg42/extension) (require 'extensions/latex/init)
extensions/latex/init says to FG42 that the corresponding init file is in the latex directory and in the init.el file. after that, you must add the MELPA dependencies you wish to install and use, in our case:
There are other doc and extension functions you may like to implement for your versioning and documentation stuff. finally you have to provide your extension using:
At this point our latex.el is done and we have to implement the init.el file. extension customization, key-binding, and hooks on the major modes, etc. are configured in init.el. The only protocol you have to recall is that name of your init function should follow this pattern: lisp extensions/latex-initialize() and you have to provide it at the end.
(defun extensions/latex-initialize () ;LaTeX development initialization (require 'company-auctex) (add-hook 'latex-mode #'company-auctex-init)) (provide 'extensions/latex/init)
FG42 will add your package to its classpath and would load it on the related major mode. Finally you have to enable this extension in the yourfg42home/fg42-confilg.el file.
(activate-extensions 'latex etc)
you are done. enjoy using your extension!
If you ran into an issue and want to debug FG42, the best and easiest way is to turn on
debugging by uncommenting
(setq debug-on-error t) in your configuration (
and restarting FG42. After that you'll get a traceback for any exception in FG42.
what's with the name?
I'm a huge fan of Steins Gate anime and I follow its naming convensions on Future Gadgets 42.
Why we moved from Github ?
We're not happy with Microsoft buying Github and we don't trust a company like Microsoft because of their history and their strategies (For more information take a look at (Halloween documents). So we decided to move to Gitlab as an alternative and we are happy here so far.
FG42 is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or any later version.
FG42 is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
All the documents of FG42 that locate in 'doc' directories release under the term of GNU FDL.
Copyright (C) 2010-2018 Sameer Rahmani email@example.com