CODEBOOK

An unholy spellchecker for code.

Report Bug · Request Feature

Usage

No setup needed. Code book will automatically detect the language you are editing and mark issues for you. Note, Codebook will only mark issues that you control, where they are initially defined.

Install

Codebook is currently only available for the Zed editor. To install, go to the Extension tab in Zed and look for "Codebook".

About

Codebook is a spellchecker for code. It binds together the venerable Tree Sitter and the fast spell checker Spellbook. Included is a Language Server for use in any editor. Everything is done in Rust to keep response times snappy and memory usage low.

Status

Codebook is being developed, but the Zed extension is now live!

Supported Languages

Language	Status
Markdown	✅
Plain Text	✅
C	✅
HTML	⚠️
CSS	⚠️
Go	⚠️
JavaScript	✅
TypeScript	✅
Python	✅
Rust	✅
TOML	✅

✅ = Good to go ⚠️ = Supported, but needs more testing

Configuration

Codebook supports both global and project-specific configuration. Configuration files use the TOML format, with project settings overriding global ones.

Global Configuration

The global configuration applies to all projects by default. Location depends on your operating system:

Linux/macOS: $XDG_CONFIG_HOME/codebook/codebook.toml or ~/.config/codebook/codebook.toml
Windows: %APPDATA%\codebook\codebook.toml

Project Configuration

Project-specific configuration is loaded from either codebook.toml or .codebook.toml in the project root. Codebook searches for this file starting from the current directory and moving up to parent directories.

Configuration Options

# List of dictionaries to use for spell checking
# Default: ["en_us"]
# Other options include "en_gb"
dictionaries = ["en_us", "en_gb"]

# Custom allowlist of words to ignore (case-insensitive)
# Codebook will add words here when you select "Add to dictionary"
# Default: []
words = ["codebook", "rustc"]

# Words that should always be flagged as incorrect
# Default: []
flag_words = ["todo", "fixme"]

# List of glob patterns for paths to ignore when spell checking
# Default: []
ignore_paths = ["target/**/*", "**/*.json", ".git/**/*"]

# List of regex patterns to ignore when spell checking
# Useful for domain-specific strings or patterns
# Default: []
ignore_patterns = [
    "^[ATCG]+$",             # DNA sequences
    "\\d{3}-\\d{2}-\\d{4}"   # Social Security Number format
]

# Whether to use global configuration (project config only)
# Set to false to completely ignore global settings
# Default: true
use_global = true

Configuration Precedence

Project configuration overrides global configuration
If use_global = false in project config, global settings are ignored entirely
If no project config exists, global config is used
If neither exists, default settings are used

Working with Configurations

Words added with "Add to dictionary" are stored in the project configuration
Project settings are saved automatically when words are added
Configuration files are automatically reloaded when they change

Goals

Spellchecking is complicated and opinions about how it should be done, especially with code, differs. This section is about the trade offs that steer decisions.

Privacy

No remote calls for spellchecking or analytics. Once dictionaries are cached, Codebook needs to be usable offline. Codebook will never send the contents of files to a remote server.

Don't be annoying

Codebook should have high signal and low noise. It should only highlight words that users have control over. For example, a misspelled word in an imported function should not be highlighted as the user can't do anything about it.

Efficient

All features will be weighed against their impact on CPU and memory. Codebook should be fast enough to spellcheck on every keystroke on even low-end hardware.

Features

Code-aware spell checking

Codebook will only check the parts of your code where a normal linter wouldn't. Comments, string literals and variable definitions for example. Codebook knows how to split camel case and snake case variables, and makes suggestions in the original case.

Language Server

Codebook comes with a language server. Originally developed for the Zed editor, this language server can be integrated into any editor that supports the language server protocol.

Dictionary Management

Codebook comes with a dictionary manager, which will automatically download and cache dictionaries for a large number of written languages.

Hierarchical Configuration

Codebook uses a hierarchical configuration system with global (user-level) and project-specific settings, giving you flexibility to set defaults and override them as needed per project.

Roadmap

Support more languages than US English
Support custom project dictionaries
Support per file extension dictionaries
Add code actions to correct spelling
Support hierarchical global and project configuration

Running Tests

Run test with make test after cloning.

Acknowledgments

Harper: https://writewithharper.com/
Harper Zed: https://github.com/Stef16Robbe/harper_zed
Spellbook: https://github.com/helix-editor/spellbook
cSpell for VSCode: https://marketplace.visualstudio.com/items?itemName=streetsidesoftware.code-spell-checker
Vale: https://github.com/errata-ai/vale-ls
TreeSitter Visualizer: https://intmainreturn0.com/ts-visualizer/
common-words: https://github.com/anvaka/common-words
Hunspell dictionaries in UTF-8: https://github.com/wooorm/dictionaries

Release

To update the Language server:

Run make release-lsp
Follow instructions
Go to GitHub Releases
Un-mark "prerelease" and publish

To update the Zed Extension:

Go to blopker/codebook-zed
Update the version in extension.toml
Run git submodule update --remote --merge extensions/codebook in zed/extensions
Make a PR to zed/extensions with the updated submodule

License

zakke27/codebook

ErrorLooks like something went wrong!

About

Resources

License

Uh oh!

Stars

Watchers

Forks

Releases

Packages 0

Languages

Error
Looks like something went wrong!

Packages