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Evgeni Chasnovski 7219b816ea fix(lsp): limit number of created highlight groups (#39133)
* fix(api): allow silencing "Too many highlight groups" error

Problem: Using Lua's `vim.api.nvim_set_hl(0, 'New', {...})` can fail if
  there are too many existing highlight groups. However, this error can
  not be silenced with `pcall`.

Solution: Make it possible to silence in `nvim_set_hl` and
  `nvim_get_hl_id_by_name`.

* fix(lsp): limit number of groups created by `document_color()`

Problem: A file can contain many string colors that would be highlighted
  by an LSP server. If this number crosses 19999 (maximum number of
  allowed highlight groups), there are general issues with creating
  other highlight groups, which can break functionality outside of
  `vim.lsp.document_color`.

Solution: Limit number of highlight groups that are created by
  `vim.lsp.document_color` to 10000 (half of allowed maximum).
  This is not a 100% solution (since there can exist more than 10000
  other highlight groups), but explicitly checking number of groups is
  slow and 10000 should (hopefully) be enough for most use cases.
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Neovim

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Neovim is a project that seeks to aggressively refactor Vim in order to:

See the Introduction wiki page and Roadmap for more information.

Features

See :help nvim-features for the full list, and :help news for noteworthy changes in the latest version!

Install from package

Pre-built packages for Windows, macOS, and Linux are found on the Releases page.

Managed packages are in Homebrew, Debian, Ubuntu, Fedora, Arch Linux, Void Linux, Gentoo, and more!

Install from source

See BUILD.md and supported platforms for details.

The build is CMake-based, but a Makefile is provided as a convenience. After installing the dependencies, run the following command.

make CMAKE_BUILD_TYPE=RelWithDebInfo
sudo make install

To install to a non-default location:

make CMAKE_BUILD_TYPE=RelWithDebInfo CMAKE_INSTALL_PREFIX=/full/path/
make install

CMake hints for inspecting the build:

  • cmake --build build --target help lists all build targets.
  • build/CMakeCache.txt (or cmake -LAH build/) contains the resolved values of all CMake variables.
  • build/compile_commands.json shows the full compiler invocations for each translation unit.

Transitioning from Vim

See :help nvim-from-vim for instructions.

Project layout

├─ cmake/           CMake utils
├─ cmake.config/    CMake defines
├─ cmake.deps/      subproject to fetch and build dependencies (optional)
├─ runtime/         plugins and docs
├─ src/nvim/        application source code (see src/nvim/README.md)
│  ├─ api/          API subsystem
│  ├─ eval/         Vimscript subsystem
│  ├─ event/        event-loop subsystem
│  ├─ generators/   code generation (pre-compilation)
│  ├─ lib/          generic data structures
│  ├─ lua/          Lua subsystem
│  ├─ msgpack_rpc/  RPC subsystem
│  ├─ os/           low-level platform code
│  └─ tui/          built-in UI
└─ test/            tests (see test/README.md)

License

Neovim contributions since b17d96 are licensed under the Apache 2.0 license, except for contributions copied from Vim (identified by the vim-patch token). See LICENSE.txt for details.

Description
Vim-fork focused on extensibility and usability
Readme 437 MiB
Languages
Vim Script 40.2%
Lua 32%
C 27%
CMake 0.4%
Zig 0.1%
Other 0.1%