616 lines
22 KiB
Plaintext
616 lines
22 KiB
Plaintext
*vim_diff.txt* Nvim
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NVIM REFERENCE MANUAL
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Differences between Nvim and Vim *vim-differences*
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Nvim differs from Vim in many ways, although editor and Vimscript (not
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Vim9script) features are mostly identical. This document is a complete and
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centralized reference of the differences.
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Type |gO| to see the table of contents.
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==============================================================================
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1. Configuration *nvim-config*
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- Use `$XDG_CONFIG_HOME/nvim/init.vim` instead of `.vimrc` for your |config|.
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- Use `$XDG_CONFIG_HOME/nvim` instead of `.vim` to store configuration files.
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- Use `$XDG_STATE_HOME/nvim/shada/main.shada` instead of `.viminfo` for persistent
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session information. |shada|
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==============================================================================
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2. Defaults *nvim-defaults*
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- Filetype detection is enabled by default. This can be disabled by adding
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":filetype off" to |init.vim|.
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- Syntax highlighting is enabled by default. This can be disabled by adding
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":syntax off" to |init.vim|.
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- 'autoindent' is enabled
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- 'autoread' is enabled
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- 'background' defaults to "dark" (unless set automatically by the terminal/UI)
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- 'backspace' defaults to "indent,eol,start"
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- 'backupdir' defaults to .,~/.local/state/nvim/backup// (|xdg|), auto-created
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- 'belloff' defaults to "all"
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- 'compatible' is always disabled
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- 'complete' excludes "i"
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- 'cscopeverbose' is enabled
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- 'directory' defaults to ~/.local/state/nvim/swap// (|xdg|), auto-created
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- 'display' defaults to "lastline,msgsep"
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- 'encoding' is UTF-8 (cf. 'fileencoding' for file-content encoding)
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- 'fillchars' defaults (in effect) to "vert:│,fold:·,sep:│"
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- 'formatoptions' defaults to "tcqj"
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- 'fsync' is disabled
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- 'hidden' is enabled
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- 'history' defaults to 10000 (the maximum)
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- 'hlsearch' is enabled
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- 'incsearch' is enabled
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- 'joinspaces' is disabled
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- 'langnoremap' is enabled
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- 'langremap' is disabled
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- 'laststatus' defaults to 2 (statusline is always shown)
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- 'listchars' defaults to "tab:> ,trail:-,nbsp:+"
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- 'nrformats' defaults to "bin,hex"
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- 'ruler' is enabled
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- 'sessionoptions' includes "unix,slash", excludes "options"
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- 'shortmess' includes "F", excludes "S"
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- 'showcmd' is enabled
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- 'sidescroll' defaults to 1
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- 'smarttab' is enabled
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- 'startofline' is disabled
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- 'switchbuf' defaults to "uselast"
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- 'tabpagemax' defaults to 50
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- 'tags' defaults to "./tags;,tags"
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- 'ttimeoutlen' defaults to 50
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- 'ttyfast' is always set
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- 'undodir' defaults to ~/.local/state/nvim/undo// (|xdg|), auto-created
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- 'viewoptions' includes "unix,slash", excludes "options"
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- 'viminfo' includes "!"
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- 'wildmenu' is enabled
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- 'wildoptions' defaults to "pum,tagfile"
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- |man.vim| plugin is enabled, so |:Man| is available by default.
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- |matchit| plugin is enabled. To disable it in your config: >
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:let loaded_matchit = 1
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- |g:vimsyn_embed| defaults to "l" to enable Lua highlighting
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Default Mappings ~
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*default-mappings*
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Nvim creates the following default mappings at |startup|. You can disable any
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of these in your config by simply removing the mapping, e.g. ":unmap Y".
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>
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nnoremap Y y$
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nnoremap <C-L> <Cmd>nohlsearch<Bar>diffupdate<Bar>normal! <C-L><CR>
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inoremap <C-U> <C-G>u<C-U>
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inoremap <C-W> <C-G>u<C-W>
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<
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Default Autocommands ~
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*default-autocmds*
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Default autocommands exist in the following groups. Use ":autocmd! {group}" to
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remove them and ":autocmd {group}" to see how they're defined.
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nvim_terminal:
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- BufReadCmd: Treats "term://" buffers as |terminal| buffers. |terminal-start|
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nvim_cmdwin:
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- CmdwinEnter: Limits syntax sync to maxlines=1 in the |cmdwin|.
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==============================================================================
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3. New Features *nvim-features*
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MAJOR COMPONENTS ~
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API |API|
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Job control |job-control|
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LSP framework |lsp|
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Lua scripting |lua|
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Parsing engine |treesitter|
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Providers
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Clipboard |provider-clipboard|
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Node.js plugins |provider-nodejs|
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Python plugins |provider-python|
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Ruby plugins |provider-ruby|
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Remote plugins |remote-plugin|
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Shared data |shada|
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Terminal emulator |terminal|
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Vimscript parser |nvim_parse_expression()|
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XDG base directories |xdg|
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USER EXPERIENCE ~
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Working intuitively and consistently is a major goal of Nvim.
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*feature-compile*
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- Nvim always includes ALL features, in contrast to Vim (which ships with
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various combinations of 100+ optional features). Think of it as a leaner
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version of Vim's "HUGE" build. This reduces surface area for bugs, and
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removes a common source of confusion and friction for users.
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- Nvim avoids features that cannot be provided on all platforms; instead that
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is delegated to external plugins/extensions. E.g. the `-X` platform-specific
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option is "sometimes" available in Vim (with potential surprises:
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http://stackoverflow.com/q/14635295).
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- Vim's internal test functions (test_autochdir(), test_settime(), etc.) are
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not exposed (nor implemented); instead Nvim has a robust API.
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- Behaviors, options, documentation are removed if they cost users more time
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than they save.
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Usability details have been improved where the benefit outweighs any
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backwards-compatibility cost. Some examples:
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- Directories for 'directory' and 'undodir' are auto-created.
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- Terminal features such as 'guicursor' are enabled where possible.
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Some features are built in that otherwise required external plugins:
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- Highlighting the yanked region, see |lua-highlight|.
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ARCHITECTURE ~
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External plugins run in separate processes. |remote-plugin| This improves
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stability and allows those plugins to work without blocking the editor. Even
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"legacy" Python and Ruby plugins which use the old Vim interfaces (|if_pyth|,
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|if_ruby|) run out-of-process.
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Platform and I/O facilities are built upon libuv. Nvim benefits from libuv
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features and bug fixes, and other projects benefit from improvements to libuv
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by Nvim developers.
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FEATURES ~
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Command-line highlighting:
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The expression prompt (|@=|, |c_CTRL-R_=|, |i_CTRL-R_=|) is highlighted
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using a built-in Vimscript expression parser. |expr-highlight|
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*E5408* *E5409*
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|input()|, |inputdialog()| support custom highlighting. |input()-highlight|
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*g:Nvim_color_cmdline*
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(Experimental) Command-line (|:|) is colored by callback defined in
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`g:Nvim_color_cmdline` (this callback is for testing only, and will be
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removed in the future).
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Commands:
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|:checkhealth|
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|:drop| is always available
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|:Man| is available by default, with many improvements such as completion
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|:sign-define| accepts a `numhl` argument, to highlight the line number
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|:match| can be invoked before highlight group is defined
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|:source| works with Lua and anonymous (no file) scripts
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Events:
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|RecordingEnter|
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|RecordingLeave|
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|SearchWrapped|
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|Signal|
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|TabNewEntered|
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|TermClose|
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|TermOpen|
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|UIEnter|
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|UILeave|
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Functions:
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|dictwatcheradd()| notifies a callback whenever a |Dict| is modified
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|dictwatcherdel()|
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|menu_get()|
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|msgpackdump()|, |msgpackparse()| provide msgpack de/serialization
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|stdpath()|
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|system()|, |systemlist()| can run {cmd} directly (without 'shell')
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|matchadd()| can be called before highlight group is defined
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Highlight groups:
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|highlight-blend| controls blend level for a highlight group
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|expr-highlight| highlight groups (prefixed with "Nvim")
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|hl-NormalFloat| highlights floating window
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|hl-NormalNC| highlights non-current windows
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|hl-MsgArea| highlights messages/cmdline area
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|hl-MsgSeparator| highlights separator for scrolled messages
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|hl-Substitute|
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|hl-TermCursor|
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|hl-TermCursorNC|
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|hl-WinSeparator| highlights window separators
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|hl-Whitespace| highlights 'listchars' whitespace
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Input/Mappings:
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ALT (|META|) chords always work (even in the |TUI|). Map |<M-| with any key:
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<M-1>, <M-BS>, <M-Del>, <M-Ins>, <M-/>, <M-\>, <M-Space>, <M-Enter>, etc.
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Case-sensitive: <M-a> and <M-A> are two different keycodes.
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ALT behaves like <Esc> if not mapped. |i_ALT| |v_ALT| |c_ALT|
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Normal commands:
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|gO| shows a filetype-defined "outline" of the current buffer.
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Options:
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'cpoptions' flags: |cpo-_|
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'display' flags: "msgsep" minimizes scrolling when showing messages
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'guicursor' works in the terminal
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'fillchars' flags: "msgsep" (see 'display'), "horiz", "horizup",
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"horizdown", "vertleft", "vertright", "verthoriz"
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'foldcolumn' supports up to 9 dynamic/fixed columns
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'inccommand' shows interactive results for |:substitute|-like commands
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'laststatus' global statusline support
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'pumblend' pseudo-transparent popupmenu
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'scrollback'
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'signcolumn' supports up to 9 dynamic/fixed columns
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'statusline' supports unlimited alignment sections
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'tabline' %@Func@foo%X can call any function on mouse-click
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'wildoptions' "pum" flag to use popupmenu for wildmode completion
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'winblend' pseudo-transparency in floating windows |api-floatwin|
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'winhighlight' window-local highlights
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Signs:
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Signs are removed if the associated line is deleted.
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Variables:
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|v:progpath| is always absolute ("full")
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|v:windowid| is always available (for use by external UIs)
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==============================================================================
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4. Changed features *nvim-features-changed*
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Nvim always builds with all features, in contrast to Vim which may have
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certain features removed/added at compile-time. |feature-compile|
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Some Vim features were changed in Nvim, and vice versa.
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If a Python interpreter is available on your `$PATH`, |:python| and |:python3|
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are always available and may be used simultaneously. See |provider-python|.
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|:redir| nested in |execute()| works.
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|mkdir()| behaviour changed:
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1. Assuming /tmp/foo does not exist and /tmp can be written to
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mkdir('/tmp/foo/bar', 'p', 0700) will create both /tmp/foo and /tmp/foo/bar
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with 0700 permissions. Vim mkdir will create /tmp/foo with 0755.
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2. If you try to create an existing directory with `'p'` (e.g. mkdir('/',
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'p')) mkdir() will silently exit. In Vim this was an error.
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3. mkdir() error messages now include strerror() text when mkdir fails.
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|string()| and |:echo| behaviour changed:
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1. No maximum recursion depth limit is applied to nested container
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structures.
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2. |string()| fails immediately on nested containers, not when recursion limit
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was exceeded.
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2. When |:echo| encounters duplicate containers like >
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let l = []
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echo [l, l]
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<
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it does not use "[...]" (was: "[[], [...]]", now: "[[], []]"). "..." is
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only used for recursive containers.
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3. |:echo| printing nested containers adds "@level" after "..." designating
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the level at which recursive container was printed: |:echo-self-refer|.
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Same thing applies to |string()| (though it uses construct like
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"{E724@level}"), but this is not reliable because |string()| continues to
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error out.
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4. Stringifyed infinite and NaN values now use |str2float()| and can be evaled
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back.
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5. (internal) Trying to print or stringify VAR_UNKNOWN in Vim results in
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nothing, E908, in Nvim it is internal error.
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|json_decode()| behaviour changed:
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1. It may output |msgpack-special-dict|.
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2. |msgpack-special-dict| is emitted also in case of duplicate keys, while in
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Vim it errors out.
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3. It accepts only valid JSON. Trailing commas are not accepted.
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|json_encode()| behaviour slightly changed: now |msgpack-special-dict| values
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are accepted, but |v:none| is not.
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Viminfo text files were replaced with binary (messagepack) ShaDa files.
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Additional differences:
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- |shada-c| has no effect.
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- |shada-s| now limits size of every item and not just registers.
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- 'viminfo' option got renamed to 'shada'. Old option is kept as an alias for
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compatibility reasons.
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- |:wviminfo| was renamed to |:wshada|, |:rviminfo| to |:rshada|. Old
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commands are still kept.
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- ShaDa file format was designed with forward and backward compatibility in
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mind. |shada-compatibility|
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- Some errors make ShaDa code keep temporary file in-place for user to decide
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what to do with it. Vim deletes temporary file in these cases.
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|shada-error-handling|
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- ShaDa file keeps search direction (|v:searchforward|), viminfo does not.
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|printf()| returns something meaningful when used with `%p` argument: in Vim
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it used to return useless address of the string (strings are copied to the
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newly allocated memory all over the place) and fail on types which cannot be
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coerced to strings. See |id()| for more details, currently it uses
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`printf("%p", {expr})` internally.
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|c_CTRL-R| pasting a non-special register into |cmdline| omits the last <CR>.
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|CursorMoved| always triggers when moving between windows.
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Lua interface (|lua.txt|):
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- `:lua print("a\0b")` will print `a^@b`, like with `:echomsg "a\nb"` . In Vim
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that prints `a` and `b` on separate lines, exactly like
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`:lua print("a\nb")` .
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- `:lua error('TEST')` emits the error “E5105: Error while calling lua chunk:
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[string "<VimL compiled string>"]:1: TEST”, whereas Vim emits only “TEST”.
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- Lua has direct access to Nvim |API| via `vim.api`.
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- Lua package.path and package.cpath are automatically updated according to
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'runtimepath': |lua-require|.
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Commands:
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|:doautocmd| does not warn about "No matching autocommands".
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Functions:
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|input()| and |inputdialog()| support for each other’s features (return on
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cancel and completion respectively) via dictionary argument (replaces all
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other arguments if used).
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|input()| and |inputdialog()| support user-defined cmdline highlighting.
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Highlight groups:
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|hl-ColorColumn|, |hl-CursorColumn| are lower priority than most other
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groups
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|hl-CurSearch| highlights match under cursor instead of last match found
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using |n| or |N|
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|hl-CursorLine| is low-priority unless foreground color is set
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|hl-VertSplit| superseded by |hl-WinSeparator|
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Macro/|recording| behavior
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Replay of a macro recorded during :lmap produces the same actions as when it
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was recorded. In Vim if a macro is recorded while using :lmap'ped keys then
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the behaviour during record and replay differs.
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'keymap' is implemented via :lmap instead of :lnoremap so that you can use
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macros and 'keymap' at the same time. This also means you can use |:imap| on
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the results of keys from 'keymap'.
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Mappings:
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- Creating a mapping for a simplifiable key (e.g. <C-I>) doesn't replace an
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existing mapping for its simplified form (e.g. <Tab>).
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- The rhs of a mapping is not simplified when it is defined.
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Motion:
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The |jumplist| avoids useless/phantom jumps.
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Normal commands:
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|Q| replays the last recorded macro instead of switching to Ex mode.
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Instead |gQ| can be used to enter Ex mode.
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Options:
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'ttimeout', 'ttimeoutlen' behavior was simplified
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|jumpoptions| "stack" behavior
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'shortmess' the "F" flag does not affect output from autocommands
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Shell:
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Shell output (|:!|, |:make|, …) is always routed through the UI, so it
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cannot "mess up" the screen. (You can still use "chansend(v:stderr,…)" if
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you want to mess up the screen :)
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Nvim throttles (skips) messages from shell commands (|:!|, |:grep|, |:make|)
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if there is too much output. No data is lost, this only affects display and
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improves performance. |:terminal| output is never throttled.
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|:!| does not support "interactive" commands. Use |:terminal| instead.
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(GUI Vim has a similar limitation, see ":help gui-pty" in Vim.)
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:!start is not special-cased on Windows.
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|system()| does not support writing/reading "backgrounded" commands. |E5677|
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Startup:
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|-e| and |-es| invoke the same "improved Ex mode" as -E and -Es.
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|-E| and |-Es| read stdin as text (into buffer 1).
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|-es| and |-Es| have improved behavior:
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- Quits automatically, don't need "-c qa!".
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- Skips swap-file dialog.
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|-s| reads Normal commands from stdin if the script name is "-".
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Reading text (instead of commands) from stdin |--|:
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- works by default: "-" file is optional
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- works in more cases: |-Es|, file args
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Syntax highlighting:
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syncolor.vim has been removed. Nvim now sets up default highlighting groups
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automatically for both light and dark backgrounds, regardless of whether or
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not syntax highlighting is enabled. This means that |:syntax-on| and
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|:syntax-enable| are now identical. Users who previously used an
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after/syntax/syncolor.vim file should transition that file into a
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colorscheme. |:colorscheme|
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TUI:
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*:set-termcap*
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Start Nvim with 'verbose' level 3 to show terminal capabilities: >
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nvim -V3
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<
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*'term'* *E529* *E530* *E531*
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'term' reflects the terminal type derived from |$TERM| and other environment
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checks. For debugging only; not reliable during startup. >
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:echo &term
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< "builtin_x" means one of the |builtin-terms| was chosen, because the expected
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terminfo file was not found on the system.
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Nvim will use 256-colour capability on Linux virtual terminals. Vim uses
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only 8 colours plus bright foreground on Linux VTs.
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Vim combines what is in its |builtin-terms| with what it reads from terminfo,
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and has a 'ttybuiltin' setting to control how that combination works. Nvim
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uses one or the other, it does not attempt to merge the two.
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UI/Display:
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|Visual| selection highlights the character at cursor. |visual-use|
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Vimscript compatibility:
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`count` does not alias to |v:count|
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`errmsg` does not alias to |v:errmsg|
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`shell_error` does not alias to |v:shell_error|
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`this_session` does not alias to |v:this_session|
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Working directory (Vim implemented some of these later than Nvim):
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- |DirChanged| and |DirChangedPre| can be triggered when switching to another
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window or tab.
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- |getcwd()| and |haslocaldir()| may throw errors if the tab page or window
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cannot be found. *E5000* *E5001* *E5002*
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- |haslocaldir()| checks for tab-local directory if and only if -1 is passed as
|
||
window number, and its only possible returns values are 0 and 1.
|
||
- `getcwd(-1)` is equivalent to `getcwd(-1, 0)` instead of returning the global
|
||
working directory. Use `getcwd(-1, -1)` to get the global working directory.
|
||
|
||
==============================================================================
|
||
5. Missing legacy features *nvim-features-missing*
|
||
|
||
Some legacy Vim features are not implemented:
|
||
|
||
- |if_lua|: Nvim Lua API is not compatible with Vim's "if_lua"
|
||
- *if_mzscheme*
|
||
- |if_py|: *python-bindeval* *python-Function* are not supported
|
||
- *if_tcl*
|
||
|
||
==============================================================================
|
||
6. Removed features *nvim-features-removed*
|
||
|
||
These Vim features were intentionally removed from Nvim.
|
||
|
||
Aliases:
|
||
ex (alias for "nvim -e")
|
||
exim (alias for "nvim -E")
|
||
gex (GUI)
|
||
gview (GUI)
|
||
gvim (GUI)
|
||
gvimdiff (GUI)
|
||
rgview (GUI)
|
||
rgvim (GUI)
|
||
rview
|
||
rvim
|
||
view (alias for "nvim -R")
|
||
vimdiff (alias for "nvim -d" |diff-mode|)
|
||
|
||
Commands:
|
||
:fixdel
|
||
:helpfind
|
||
:mode (no longer accepts an argument)
|
||
:open
|
||
:Print
|
||
:promptfind
|
||
:promptrepl
|
||
:scriptversion (always version 1)
|
||
:shell
|
||
:sleep! (does not hide the cursor; same as :sleep)
|
||
:smile
|
||
:tearoff
|
||
|
||
Compile-time features:
|
||
Emacs tags support
|
||
X11 integration (see |x11-selection|)
|
||
|
||
Eval:
|
||
Vim9script
|
||
*js_encode()*
|
||
*js_decode()*
|
||
*v:none* (used by Vim to represent JavaScript "undefined"); use |v:null| instead.
|
||
*v:sizeofint*
|
||
*v:sizeoflong*
|
||
*v:sizeofpointer*
|
||
|
||
Events:
|
||
*SigUSR1* Use |Signal| to detect `SIGUSR1` signal instead.
|
||
|
||
Highlight groups:
|
||
*hl-StatusLineTerm* *hl-StatusLineTermNC* are unnecessary because Nvim
|
||
supports 'winhighlight' window-local highlights.
|
||
For example, to mimic Vim's StatusLineTerm: >
|
||
hi StatusLineTerm ctermfg=black ctermbg=green
|
||
hi StatusLineTermNC ctermfg=green
|
||
autocmd TermOpen,WinEnter * if &buftype=='terminal'
|
||
\|setlocal winhighlight=StatusLine:StatusLineTerm,StatusLineNC:StatusLineTermNC
|
||
\|else|setlocal winhighlight=|endif
|
||
<
|
||
|
||
Options:
|
||
'antialias'
|
||
'bioskey' (MS-DOS)
|
||
'conskey' (MS-DOS)
|
||
*'cp'* *'nocompatible'* *'nocp'* *'compatible'* (Nvim is always "nocompatible".)
|
||
'cpoptions' (gjkHw<*- and all POSIX flags were removed)
|
||
*'cryptmethod'* *'cm'* *'key'* (Vim encryption implementation)
|
||
*'ed'* *'edcompatible'* *'noed'* *'noedcompatible'*
|
||
'encoding' ("utf-8" is always used)
|
||
'esckeys'
|
||
'guioptions' "t" flag was removed
|
||
*'guifontset'* *'gfs'* (Use 'guifont' instead.)
|
||
*'guipty'* (Nvim uses pipes and PTYs consistently on all platforms.)
|
||
'highlight' (Names of builtin |highlight-groups| cannot be changed.)
|
||
*'imactivatefunc'* *'imaf'*
|
||
*'imactivatekey'* *'imak'*
|
||
*'imstatusfunc'* *'imsf'*
|
||
*'macatsui'*
|
||
'maxmem' Nvim delegates memory-management to the OS.
|
||
'maxmemtot' Nvim delegates memory-management to the OS.
|
||
'maxcombine' (6 is always used)
|
||
*'prompt'* *'noprompt'*
|
||
*'restorescreen'* *'rs'* *'norestorescreen'* *'nors'*
|
||
'shelltype'
|
||
*'shortname'* *'sn'* *'noshortname'* *'nosn'*
|
||
*'swapsync'* *'sws'*
|
||
*'termencoding'* *'tenc'* (Vim 7.4.852 also removed this for Windows)
|
||
'textauto'
|
||
'textmode'
|
||
*'toolbar'* *'tb'*
|
||
*'toolbariconsize'* *'tbis'*
|
||
*'ttybuiltin'* *'tbi'* *'nottybuiltin'* *'notbi'*
|
||
*'ttymouse'* *'ttym'*
|
||
*'ttyscroll'* *'tsl'*
|
||
*'ttytype'* *'tty'*
|
||
'ttyfast'
|
||
'weirdinvert'
|
||
|
||
Startup:
|
||
--literal (file args are always literal; to expand wildcards on Windows, use
|
||
|:n| e.g. `nvim +"n *"`)
|
||
Easy mode: eview, evim, nvim -y
|
||
Restricted mode: rview, rvim, nvim -Z
|
||
Vi mode: nvim -v
|
||
|
||
Test functions:
|
||
test_alloc_fail()
|
||
test_autochdir()
|
||
test_disable_char_avail()
|
||
test_feedinput()
|
||
test_garbagecollect_soon
|
||
test_getvalue()
|
||
test_ignore_error()
|
||
test_null_blob()
|
||
test_null_channel()
|
||
test_null_dict()
|
||
test_null_function()
|
||
test_null_job()
|
||
test_null_list()
|
||
test_null_partial()
|
||
test_null_string()
|
||
test_option_not_set()
|
||
test_override()
|
||
test_refcount()
|
||
test_scrollbar()
|
||
test_setmouse()
|
||
test_settime()
|
||
test_srand_seed()
|
||
|
||
TUI:
|
||
*t_xx* *termcap-options* *t_AB* *t_Sb* *t_vb* *t_SI*
|
||
Nvim does not have special `t_XX` options nor <t_XX> keycodes to configure
|
||
terminal capabilities. Instead Nvim treats the terminal as any other UI,
|
||
e.g. 'guicursor' sets the terminal cursor style if possible.
|
||
|
||
*termcap*
|
||
Nvim never uses the termcap database, only |terminfo| and |builtin-terms|.
|
||
|
||
*xterm-8bit* *xterm-8-bit*
|
||
Xterm can be run in a mode where it uses true 8-bit CSI. Supporting this
|
||
requires autodetection of whether the terminal is in UTF-8 mode or non-UTF-8
|
||
mode, as the 8-bit CSI character has to be written differently in each case.
|
||
Vim issues a "request version" sequence to the terminal at startup and looks
|
||
at how the terminal is sending CSI. Nvim does not issue such a sequence and
|
||
always uses 7-bit control sequences.
|
||
|
||
==============================================================================
|
||
vim:tw=78:ts=8:sw=2:et:ft=help:norl:
|