fortran-linter 1.0.7

A linter for Fortran files

Fortran syntax checker

Installation

There are 2 ways of installing the linter. The recommended one is through pip

pip install fortran-linter

The other way is to clone this repository and install it from the local copy:

git clone https://github.com/cphyc/fortran-syntax.git
pip install .

Please note that depending on your installation, you may have to add sudo to the pip install line. This is due to the fact that the package is shipped with a script fortran-linter. For some installation, the creation of this file may require root access.

Usage

This tool checks for fortran syntax against a few rules. To print a list of all the warnings for a file, run:

fortran-linter myfile.f90 --syntax-only

To try to fix the warnings in place, do:

fortran-linter myfile.f90 -i

The original file will be backuped into myfile.f90.orig. All the safe fixes will be done and stored in the file myfile.f90.

For more help, you can type

fortran-linter -h

Rules

Currently, the following things are checked:

• punctuation should be followed by a space, this include ,, ; and )..
• The following special characters are surrounded by at least one space: ::, =.
• A line should not exceed 120 characters (this is somehow already extreme).
• One should use use mpi instead of include "mpif.h". Note that this is not fixed by default as it may break codes where include "mpif.h" follows and implicit none statement.
• Spaces are preferred over tabs, trailing whitespaces are cleaned.
• Warnings are raised if you use real(8) :: foo. One should rather use integer, parameter :: dp = selected_real_kind(15); real(dp) :: foo or use iso_fortran_env; real(real64) :: foo

TODO list

• TESTS
• support for other editor(s), e.g. Atom, Vim, …
• add more rules (this one will never end)
• ship on pip