hapax-lsp
A language server for Squarp Hapax instrument definitions: diagnostics, highlighting, completion and a fix-all action, in any editor with an LSP client.
Validation comes from hapax-tui, so the editor reports exactly what hapax validate reports.
Install
Requires Python 3.13+.
uv tool install hapax-lsp
This puts hapax-lsp on your PATH; it speaks LSP over stdio.
Settings
| Setting | Default | Meaning |
|---|---|---|
fw |
3.21 |
Target Hapax OS, 1.12 to 3.21 |
warn |
warn in ~/.config/hapax/config.toml, else true |
Report warnings as well as errors |
Send them as initializationOptions, or as workspace/didChangeConfiguration settings under a hapax key.
Neovim (0.11+)
This repo is also a Neovim plugin. Install it with your plugin manager and enable the server, for example with lazy.nvim:
{ "claytron/hapax-lsp", config = function() vim.lsp.enable("hapax") end }
Instrument definitions are .txt files, so ftdetect/hapax.lua marks a .txt buffer as hapax when its first non-comment line is a whole directive (VERSION 1, TRACKNAME My Synth, TYPE POLY, ...) or a section header like [CC].
Other .txt files stay text.
Highlighting comes from semantic tokens, linked to your colour scheme's @lsp.type.* groups.
Run the fix-all action with vim.lsp.buf.code_action().
Other editors
Map Hapax .txt files to a hapax language however your editor allows, for example by the directory you keep instruments in, and run hapax-lsp for it.
Development
uv sync
uv run pytest
1 maintainer
Metadata
1 maintainer
Release files for hapax-lsp 0.1.2
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Source distribution (sdist)
| File | Size | Uploaded | Provenance | |
|---|---|---|---|---|
| hapax_lsp-0.1.2.tar.gz | 24.7 kB | With provenance | Details |
Built distribution (wheel)
| File | Interpreter | ABI | Platform | Reset |
|---|---|---|---|---|
| hapax_lsp-0.1.2-py3-none-any.whl | Python 3 | none | any | Details |
Total release size: 30.7 kB
Release files / hapax_lsp-0.1.2.tar.gz
| Download URL | hapax_lsp-0.1.2.tar.gz |
|---|---|
| Size | 24.7 kB |
| Tags | Source |
|
SHA-256 checksum How to use checksums |
0a108c3414a7e539b1396306d7c884179b86a7e79ee2488eab06f9cd2ea40d21
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twine/7.0.0 CPython/3.13.16
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| Download URL | hapax_lsp-0.1.2-py3-none-any.whl |
|---|---|
| Size | 6.0 kB |
| Tags | Python 3 |
|
SHA-256 checksum How to use checksums |
df10fcaa2fdcccd32fb77c7b77e89c7fd4c4a270fa62e9d2d4dae2d4a206e448
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Yes |
| Uploaded via |
twine/7.0.0 CPython/3.13.16
|
Provenance
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PyPI Publish Attestation
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Signed by GitHub Actions, verified by PyPI on Oct 24, 2026.
Transparency logSecurity for hapax-lsp 0.1.2
Provenance
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Full provenance
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Attestation for hapax_lsp-0.1.2.tar.gz
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PyPI verified that this artifact, at this checksum, originated from the publisher listed below.
Signed by GitHub Actions, verified by PyPI on Oct 24, 2026.
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