vim-hew

Vim/Neovim syntax highlighting and editor support for the Hew programming language.

Installation

lazy.nvim (Neovim)

{ 'hew-lang/vim-hew' }

vim-plug

Plug 'hew-lang/vim-hew'

packer.nvim (Neovim)

use 'hew-lang/vim-hew'

Manual

Copy the contents to your Vim runtime directory:

# Vim
mkdir -p ~/.vim && cp -r syntax ftdetect ftplugin indent ~/.vim/

# Neovim
mkdir -p ~/.config/nvim && cp -r syntax ftdetect ftplugin indent ~/.config/nvim/

Features

• Full syntax highlighting (keywords, types, actors, supervisors, strings, numbers, comments, operators, attributes)
• Filetype detection for .hew files
• Comment formatting (//, /* */)
• Indentation support (cindent-based)

Formatting

If you have the hew compiler installed, you can format the current buffer with:

:%!hew fmt %

Or add an autocommand to format on save:

autocmd BufWritePre *.hew silent! execute ':%!hew fmt %'

Syntax verification

Run the syntax smoke test with Vim:

vim -Nu NONE -i NONE -n -es -S test/syntax.vim

The fixture covers dotted paths, .{ } imports, and contextual .Variant forms. Retired syntax is highlighted as an error; the compiler names the legacy path and turbofish diagnostics E_PATH_LEGACY_SEPARATOR and E_LEGACY_TURBOFISH; removed glob imports use E_IMPORT_GLOB_REMOVED.

License

Apache-2.0