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Add tests for undotree(). Helped-by: Björn Linse <bjorn.linse@gmail.com> When "curhead" points to a valid head, the value of "newhead" is meaningless (and really should be set to null). The undo state for a buffer is _logically_ the enum: enum UndoState { CurrentHead(head), NewHead(head), EmptyTree } nvim _represents_ this as: whenever `curbuf->b_u_curhead` is nonnull it should be used as the current head, and `curbuf->b_u_newhead` is ignored. If the there is a current head, then this will be redoed on the next redo, and its parent will be undone on next undo. Only if `b_u_curhead` is NULL, `b_u_newhead` will be used as the head to undo (and it is not possible to redo). Also both can be NULL, to indicate an empty undotree. (To be fair, this only strictly true when calling undo.c from the outside, in some places _within_ a function in undo.c both values might be meaningful) Apparently `undotree()` breaks this non-abstraction, this _cosmetic_ issue can easily be fixed by `ex_substitute` also saving and restoring `b_u_newhead`, but is doesn't reflect any error really how `u_undo_and_forget` manipulates the _actual_ state of the undo tree.
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DebianNeovim 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 external UIs without modifications to the core
- Improve extensibility with a new plugin architecture
For more details, see the wiki!
What's been done so far
- RPC API based on MessagePack
- Embedded terminal emulator
- Asynchronous job control
- Shared data (shada) among multiple editor instances
- XDG base directories support
- libuv-based platform/OS/"mch" layer
- Pushdown automaton input model
- 1000s of new tests
- Legacy tests converted to Lua tests
See :help nvim-features for a comprehensive list.
What's being worked on now
See the Roadmap.
How do I get it?
There is a Debian package, homebrew formula, PKGBUILD for Arch Linux, RPM, and more. See the wiki!
License
Neovim is licensed under the terms of the Apache 2.0 license, except for parts that were contributed under the Vim license.
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Contributions committed before b17d96 remain under the Vim license.
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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.
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You can also sponsor the development of Vim. Vim sponsors can vote for
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