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Fortran Language Server (beta)

https://travis-ci.org/hansec/fortran-language-server.svg?branch=master https://ci.appveyor.com/api/projects/status/github/hansec/fortran-language-server?branch=master&svg=true

A FORTRAN implementation of the Language Server Protocol using Python (2.7+).

Note: This language server is currently in the early stages of development. Not all features are supported or planned.

Language Server Features

Document Symbols:

https://raw.githubusercontent.com/hansec/fortran-language-server/master/images/fortls_outline.png

Auto Completion:

https://raw.githubusercontent.com/hansec/fortran-language-server/master/images/fortls_autocomplete.gif

Go to definition:

https://raw.githubusercontent.com/hansec/fortran-language-server/master/images/fortls_gotodef.gif

Hover:

https://raw.githubusercontent.com/hansec/fortran-language-server/master/images/fortls_hover.gif

Diagnostics:

  • Multiple use of the same variable name
  • Unknown module in USE statement
  • Variable masking definition from parent scope

https://raw.githubusercontent.com/hansec/fortran-language-server/master/images/fortls_diag.png

Installation

pip install fortran-language-server

Configuration

Project specific settings can be specified by placing a JSON file named .fortls (example below) in the root_dir directory.

Setup module search paths:

By default all files with the suffix F,F77,F90,F95,F03,F08,FOR,FPP (case-insensitive) in the root_dir directory, specified during initialization, and all its sub-directories are parsed and included in the project.

Directories and files can be excluded from the project by specifying their paths (relative to root_dir) in the excl_paths variable in the .fortls file. Excluded directories also exclude all sub-directories.

Module directories can also be specified manually by specifying their paths (relative to root_dir) in the mod_dirs variable in the .fortls file. When mod_dirs is specified directories are not added recursively, so any nested sub directories must be explicitly listed. However, root_dir does not need to be specified manually as it is always included.

{
  "mod_dirs": ["subdir1", "subdir2"],
  "excl_paths": ["subdir3", "subdir1/file_to_skip.F90"]
}

Bug reports

When filing bugs please provide example code to reproduce the observed issue.

License

This project is made available under the MIT License.