a0f13095aa
This happens in an operation which both increases topline and also inserts new lines somewhere in the remaining are. So before drawing any line, win_update() is performing two grid_scroll operations. === A B C D E^ F === Consider that new line will be inserted after line E and screen also scrolled up to line C. First the topline will be adjusted (x is the scrolling region, ! invalid/empty space created by the scroll): === C x D x E^ x F x ! x ! x === and then space is inserted for the new line === C D E^ ! x F x ! x === The problem is that we are now assuming that any invalid area ! created by a scroll is filled with actual contents (by win_line etc) before it is scrolled again. But in this case the last invalid line ! gets scrolled. Ideally we should make win_update smarter and just scroll valid lines for the later scroll (it is just wasteful to scroll the larger area anyway), but for the 0.4 releasejust make the compositor ignore such an invalid line (as it will get overdrawn anyway later).
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Neovim is a project that seeks to aggressively refactor Vim in order to:
- Simplify maintenance and encourage contributions
- Split the work between multiple developers
- Enable advanced UIs without modifications to the core
- Maximize extensibility
See the Introduction wiki page and Roadmap for more information.
Features
- Modern GUIs
- API access from any language including C/C++, C#, Clojure, D, Elixir, Go, Haskell, Java, JavaScript/Node.js, Julia, Lisp, Lua, Perl, Python, Racket, Ruby, Rust
- Embedded, scriptable terminal emulator
- Asynchronous job control
- Shared data (shada) among multiple editor instances
- XDG base directories support
- Compatible with most Vim plugins, including Ruby and Python plugins
See :help nvim-features for the full list!
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, Gentoo, and more!
Install from source
The build is CMake-based, but a Makefile is provided as a convenience.
make CMAKE_BUILD_TYPE=RelWithDebInfo
sudo make install
To install to a non-default location:
make CMAKE_INSTALL_PREFIX=/full/path/
make install
To skip bundled (third-party/*) dependencies:
- Install the dependencies using a package manager.
sudo apt install gperf luajit luarocks libuv1-dev libluajit-5.1-dev libunibilium-dev libmsgpack-dev libtermkey-dev libvterm-dev sudo luarocks build mpack sudo luarocks build lpeg sudo luarocks build inspect - Build with
USE_BUNDLED=OFF:make CMAKE_BUILD_TYPE=RelWithDebInfo USE_BUNDLED=OFF sudo make install
To inspect the build, these CMake features are useful:
cmake --build build --target helplists all build targets.build/CMakeCache.txt(orcmake -LAH build/) contains the resolved values of all CMake variables.build/compile_commands.jsonshows the full compiler invocations for each translation unit.
See the Building Neovim wiki page for details.
Transitioning from Vim
See :help nvim-from-vim for instructions.
Project layout
├─ ci/ build automation
├─ cmake/ build scripts
├─ runtime/ user plugins/docs
├─ src/nvim/ application source code (see src/nvim/README.md)
│ ├─ api/ API subsystem
│ ├─ eval/ VimL 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
├─ third-party/ CMake subproject to build dependencies
└─ test/ tests (see test/README.md)
License
Neovim is licensed under the terms of the Apache 2.0 license, except for parts that were contributed under the Vim license.
-
Contributions committed before b17d96 remain under the Vim license.
-
Contributions committed after b17d96 are licensed under Apache 2.0 unless those contributions were copied from Vim (identified in the commit logs by the
vim-patchtoken).
See LICENSE for details.
Vim is Charityware. You can use and copy it as much as you like, but you are
encouraged to make a donation for needy children in Uganda. Please see the
kcc section of the vim docs or visit the ICCF web site, available at these URLs:
http://iccf-holland.org/
http://www.vim.org/iccf/
http://www.iccf.nl/
You can also sponsor the development of Vim. Vim sponsors can vote for
features. The money goes to Uganda anyway.