#+TITLE:   lang/fortran
#+DATE:    October 22, 2021
#+SINCE:   v3.0.0 (#5676)
#+STARTUP: inlineimages nofold

* Table of Contents :TOC_3:noexport:
- [[#description][Description]]
  - [[#maintainers][Maintainers]]
  - [[#module-flags][Module Flags]]
  - [[#plugins][Plugins]]
- [[#prerequisites][Prerequisites]]
  - [[#arch-linux][Arch Linux]]
- [[#features][Features]]
- [[#configuration][Configuration]]
- [[#troubleshooting][Troubleshooting]]

* Description

This module enables a complete, modern development environment for the [[https://fortran-lang.org/][Fortran]]
language. Initially released in 1956 (a year before Lisp 1.0), Fortran is the
original high-performance computation language and is still widely used in
science and academia. Popular versions of the language include Fortran 77 and
Fortran 90, with further extensions in the 1995 and 2008 varieties. Today,
Fortran has joined the modern age with its own [[https://github.com/fortran-lang/fpm][package manager]], [[https://fortran-lang.org/packages/][package
registry]], and [[https://fortran-lang.discourse.group/][Discourse community]].

In particular, this module features:

+ Support for all major Fortran varieties.
+ Auto-formatting via =fprettier=.
+ Integration with the =fpm= package manager.
+ LSP support via [[https://github.com/gnikit/fortls][fortls]].

#+begin_quote
After a career of writing Fortran on Mainframes and Windows machines, my
now-retired Dad is switching to Linux. Imagine my surprise when I learned that
off-the-shelf setups for Fortran on Linux basically don't exist! Well, until
now... Cheers Dad, hope this helps.
#+end_quote

** Maintainers
+ [[https://github.com/fosskers][@fosskers]] (Author)

** Module Flags
+ =+lsp= Activate =fortls= for Fortran projects.

** Plugins

* Prerequisites

For minimum functionality, this module requires =gfortran=. For most project
management tasks you will also need [[https://github.com/fortran-lang/fpm][fpm]], the Fortran Package Manager.

** Arch Linux

=gfortran= is available from the official repositories:

#+begin_example
sudo pacman -S gcc-fortran
#+end_example

Whereas =fpm= and =fortls= are available from the AUR and thus must be installed
with an AUR-compatible tool like [[https://github.com/fosskers/aura][Aura]]:

#+begin_example
sudo aura -A fortran-fpm fortls
#+end_example

* Features
# An in-depth list of features, how to use them, and their dependencies.

* Configuration
# How to configure this module, including common problems and how to address them.

* Troubleshooting
# Common issues and their solution, or places to look for help.