| Commit message (Collapse) | Author | Age |
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Problem:
A number in 'iskeyword', 'isfname' or 'isident' that overflows (e.g. via
a modeline) hits abort() or an assert in getdigits_int().
Solution:
Parse the numbers non-strictly so an out-of-range value gives E474.
Fixes #42409
AI-assisted
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Problem: nvim_set_option_value() dry runs skip checks in did_set_*
callbacks. This logic also prepares values needed to apply the option,
such as tab widths or a compiled regexp. Moving the checks into
validation callbacks needs a way to save that work for did_set_*.
Solution: Store prepared values in optset_T so did_set_* can consume
them after the option is stored. Dry runs perform the same validation,
then free the prepared values without changing live state.
This extends dry-run validation for:
- 'cedit': reject invalid command-line window keys.
- 'completeitemalign': require each completion column exactly once.
- 'cursorlineopt': reject empty values and conflicting line modes.
- 'encoding': accept only UTF-8 and its aliases.
- 'fileencoding': reject lists and local changes with 'nomodifiable'.
- 'messagesopt': require mandatory fields and enforce numeric limits.
- 'spellcapcheck': return regexp errors, including under :silent!.
- 'spellsuggest': reject conflicting suggestion modes.
- 'varsofttabstop' and 'vartabstop': reject invalid tab widths.
- 'wildmode': reject more than four completion stages.
'makeencoding' also uses the shared encoding preparation.
Separating value preparation exposed a bug in 'vartabstop' and
'varsofttabstop': failed assignments could discard local tab widths, and
global assignments could overwrite them. Fix this by preparing new
widths separately and applying them only after a valid local assignment.
AI-assisted
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#42352
Problem:
- nvim_buf_call() aborts (assert) when called from an expression evaluated
for a window in another tabpage ('foldexpr', 'statusline'), because
`curwin` is not in `curtab`.
- After it returns, `curwin` is wrong if it switched windows.
- `vim._with{win=…, keepcwd=true}` does not undo `:lcd` if `win` is in
another tabpage.
Solution:
- Allow `curwin` outside `curtab`, and restore if it was outside
`curtab` at `ctx_switch()`.
- Find the target window in any tabpage when restoring its dirs.
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Problem:
`nvim_set_option_value('fo', {'c','r','o'}, {operation='remove'})` does
nothing on "jcqrol": the items are joined into one `:set-=` value, which
only matches a contiguous substring. Removing map keys, e.g. {'eol','space'}
from 'listchars', never matches. `vim.opt:remove{…}` inherits this.
(Regression from f34ee3da80e8; 429338e74bf4 fixed the case where the
flags are adjacent and in order.)
Solution:
Remove each item separately.
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Problem:
nvim_parse_cmd("'btab", {}) and typing ":'btab" crash, parse_cmdline()
continues with a NULL eap->cmd after an invalid :tab address.
Solution:
Fail if parse_command_modifiers() set an error.
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Problem:
Only the stdio channel can "own" a server (self-exit on close). After
:restart the TUI reconnects over a socket, so the restarted server does
not have "self-exit" behavior when the channel closes (e.g. by UI
disconnect, host-terminal close, etc.), which leaves a dangling server.
Solution:
- Introduce `nvim_chan_set`. (`nvim_set_client_info` doesn't fit:
exposing it to Lua would require a `channel` param, which is not
backwards-compatible, plus it's awkward because it doesn't merge info.)
- Broadcast per-channel properties in the "restart" UI event as an
opaque dict (a potentially useful pattern for other UI-events in the
future).
- UIs are expected to restore the channel properties on restart.
- `nvim_get_chan_info()` reports "detach".
- Remove `nvim__chan_set_detach()`.
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Problem:
nvim_open_term() sizes the terminal from the current window, which may
have 0 rows (bordered float, 'cmdheight' taking all rows). libvterm
aborts when resizing from 0 rows.
Solution:
In `terminal_alloc()`, treat zero width/height as the pty default
(80x24), like jobstart(term=true).
Open question:
nvim_win_get_height() on such a float returns -1 (winheight() returns 0).
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Problem: Repeated default fields and field-by-field assertions obscure
the values that each functional test is meant to check.
Solution: Add eq_partial() to check selected record fields while
preserving list length and order. Use local helpers to fill fixed
expected defaults where tests need full equality. Keep explicit absence
checks and test-specific values at the call sites.
AI-assisted
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Problem:
When `unpacker_parse_redraw()` fails, it closes the unpacker without
setting `unpack_error`, so `chan_close_on_err()` gets a NULL message.
A pending request fails with an empty error (`RPC: (null)`).
c04d0734a728 fixed the crash that followed (advancing the closed
unpacker), but not the silent close itself.
Repro:
Self-attach (`nvim_ui_attach` on a loopback `sockconnect()` channel)
closes the channel without a visible reason, either while
`nvim_ui_attach` is pending or at the next redraw.
Solution:
Set an error msg when `unpacker_parse_redraw()` fails.
Note:
Self-attach fails for accidental reasons, not by design:
- An incoming "redraw" notif is always parsed "as a UI client"
(`handle_ui_client_redraw`), whose `grid_line` buffer is only
allocated in a UI client process. A loopback channel is both ends, so
it parses its own redraw stream as if it were the TUI.
- Even if parsing worked, `parse_msgpack()` drops redraw events unless
`ui_client_attached`, and a `sockconnect()` client has no notification
callback.
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Problem:
`nvim_mcursor` is not fully baked, and not strongly motivated,
currently. The main programmatic interface for cursors is the
"nvim.multicursor" extmarks namespace.
Solution:
Drop `nvim_mcursor`. Add an internal hook so that multicursor can react
when extmarks are added to the "nvim.multicursor" namespace.
TODO:
If extmarks/namespaces are clumsy to work with, we should _fix that_
rather than adding wrappers.
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refactor(charset)!: delete 'isprint' and cleanup 'iskeyword' and friends
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In the `enc=utf-8` only world, the 'isprint' option is quite obsolete.
The function is only consulted for decoded U+0080 to U+00FF chars
whose printability is defined by the unicode charset, just like
higher codepoints. Meanwhile, invalid `\x80` to `\xFF` bytes are always
unprintable.
Disentangle 'iskeyword', 'isfname' and 'isident' from each other by
giving them all separate bitsets. Now these can be updated individually.
These updaters can back out of errors gracefully, no need for extra
panic logic in option[str].c to restore partially updated chartabs.
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Problem:
API append, prepend, and remove operations reach the option setter as
full replacements. This can clear an expression's untrusted flag and
allow it to write files, unlike equivalent :set operations.
Solution:
Pass replacement status through the option setters so merges preserve
the existing value's trust restrictions.
AI-assisted
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Problem:
nvim_cmd() duplicates Ex parsing: it sets the address type and default
range itself and builds the whole command line in build_cmdline_str().
Solution:
Build only the range, command name and arguments, and let
parse_cmdline() fill in exarg_T.
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Problem: Option validators and setters repeatedly pass error buffers and
their sizes separately. Some setters return messages in static storage.
Solution:
- Add CharBuf for borrowed writable storage, with its length including
space for a terminating NUL.
- Move option error buffers to the callers that report errors. Preserve
existing buffer sizes, truncation, and calls that do not need a
message.
- Consolidate option error formatting and the duplicated code that lists
valid option values.
- Return error messages directly from do_one_set_option().
- Remove unused arguments from get_option_newval() and
set_option_value_for().
- Handle legacy TTY assignments in the existing callers and remove the
redundant compatibility wrapper.
- Reuse CharBuf for Tree-sitter query errors.
- Pass CharBuf through the statusline and statuscolumn builders,
retaining the buffer sizes provided by their callers, including title
formatting.
AI-assisted
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Problem:
Dict schema checks are mixed into individual option validators.
Solution:
Check schemas before calling option validators. Remove the redundant
checks and callback entries.
AI-assisted
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Problem:
nvim_set_option_value() dry runs skip checks in did_set_* callbacks.
Solution:
Split validation out of these callbacks so dry runs and normal
assignments use the same checks.
Read 'mkspellmem' limits when building spell files. Keep the
'spellsuggest' limit unchanged when an assignment fails.
AI-assisted
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Problem:
nvim_set_option_value() with dry_run=true accepts invalid values such as
foldmethod='nonsense'. Validation is mixed with side effects in the
did_set_* callbacks, so dry runs skip it.
Solution:
Split value validation out of the did_set_* callbacks into separate
validation_cb callbacks. Use these checks for both normal assignments
and nvim_set_option_value() dry runs. Keep side effects in did_set_*.
Replace direct foldenable/foldlevel assignments in C folding commands
with setters. This gives C commands the same OptionSet and
synchronization behavior as Lua assignments.
Use normal setters for 'tabstop' and 'vartabstop' in :retab so C code
indentation and folds based on indentation use the new tab widths.
Direct assignments could leave them using the old widths.
:retab temporarily turns off 'list' to calculate tab widths. Previously,
:retab -1 reported an error and returned without restoring 'list'. Check
the argument before turning 'list' off, so an invalid argument leaves
the option unchanged.
AI-assisted
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Problem: Autocmd callbacks currently have to rely on curwin, which may
already have changed by the time they run. This is especially noticeable
for WinNew, WinClosed, WinResized and WinScrolled.
Solution: Track the window in the autocmd context and expose it as ev.win.
Pass it explicitly for the window events that need it.
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test(ci): non fatal errors for [NULL] safety in vim_snprintf
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This is a bit more boilerplate because of painful impedance mismatch (is
augroup names the root source of truth? is ids the source of truth? who
knows? what does truth even mean?), but show an error reflecting what
the caller actually tried (they passed in an invalid id, not a null
string)
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Problem:
`getdigits_int(pp, strict, def)` returns `def` only when the number
fails to parse or overflows, never when the text parses to a literal
`0`, so `%.0` leaves `maxwid` at 0. Both render paths then break down:
`l > maxwid` is always true and `while (l >= maxwid)` consumes the whole
string, so `%.0f` comes out as `<` and `%.0l` as `0>3`.
Vim guards for this right after the same call. Nvim had the guard too
until 3344cffe7b ("getdigits: introduce `strict`, `def` parameters"),
which folded it into the new `def` argument and so changed what a
literal zero means. The neighbouring `minwid` call was translated
correctly.
Solution:
Fall back to 50 when the parsed width is not positive, as Vim does.
AI-assisted
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Problem:
Both handle lookups write into the same `Error` before either one is
checked, and `api_set_error()` unconditionally `xmalloc`s `err->msg`
without freeing what is already there. When both handles are invalid,
the message allocated for the window is silently overwritten by the one
for the buffer and leaked.
Solution:
Check the window before looking up the buffer. As a side effect the
reported error no longer names the buffer when the window was wrong too.
AI-assisted
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Problem:
`find_window_by_handle()` returns NULL only after `VALIDATE_INT` has
already set `err`, so the `api_set_error()` that followed allocated a
second message over the first pointer and leaked it.
Solution:
Drop the redundant call and keep the helper's message, which is already
set and better worded.
AI-assisted
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Problem:
`shada_read()` rebuilds `v:oldfiles` for any "forced" read, which first
*clears* the list. For an in-memory caller such as multicursor, the list
is never repopulated. So `v:oldfiles` is empty after `Q` + edit.
Solution:
Rebuild `v:oldfiles` only when `kShaDaGetOldfiles` is requested.
`shada_read_everything()` (`:rshada[!]`, startup) always requests it.
old bug from 411a06c8b6e9
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Other (squashed) commits:
fix(tui): emit ui_send output atomically with the frame
Problem:
tui_ui_send() writes directly to the TTY, bypassing the output buffer.
Sequences sent via nvim_ui_send() (e.g. kitty multiple-cursors, or
visual-dot-repeat) always arrive in a separate TTY write from the frame
they were computed for. This manifests as "tearing", or e.g. in the case
of multicursor the terminal renders text with stale cursor overlays.
Solution:
- tui_ui_send(): while a frame is being assembled (pending invalid
regions or buffered output), buffer instead of writing directly.
- Out-of-frame sends (tty queries, clear-on-disable) still write
immediately.
- mcursor.lua: emit the terminal-cursor update at the end of the redraw
cycle (`on_end`, when screen positions are final) instead of
vim.schedule().
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Problem:
Literal path comparison ignored one trailing slash for every buffer name,
including URIs. Generic URI syntax does not make a non-empty path
equivalent to the same path with a trailing slash, so distinct URI
buffers collapsed into one.
Solution:
Require equal lengths when comparing URI buffer names, while retaining
trailing-separator normalization for filesystem paths.
AI-assisted
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Problem:
Undo places the cursor wherever the cursor happened to sit at "save
time" (`uh_cursor` is sampled lazily on the first change).
Examples:
- `i` preserves, but `a` does not
- `diw`, `atest<Esc>`, `d^` abandon the original position
- `D`, `o` restore it (by accident).
Solution:
`composite` tracks the pending atom (and its `origin`) across frames.
A `stuffed` continuation frame inherits the `origin` + prepped redo.
Store `origin` info in the undo header, so undo can restore it.
- Not for a mid-command undo break (i_CTRL-G_u).
- Undoing a mapping restores where the mapping started (which
technically may be different than where the "edit" started).
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Problem:
A deadly signal arriving during teardown can kill Nvim while it is
preserving swapfiles. `os_exit()` ignores deadly signals via
`signal_reject_deadly()`, but `signal_teardown()` => `uv_signal_stop()`
resets them to the default behavior, so SIGHUP arriving after that
kills the process:
[Process exited 129] // 128 + SIGHUP
This is a race when closing a pty: kernel sends SIGHUP to foreground
process group *and* the reads return EOF, so `chanclose()` on a TUI job
prepares to exit twice. This means it is unpredictable whether Nvim
exits 1 or is terminated.
Solution:
Ignore deadly signals once the watchers are closed. Only SIGKILL
interrupts it now.
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Problem:
A mark created by `nvim_buf_set_extmark()` while an undo block is open
never comes back on redo.
Analysis:
Undo deletes the text it covers and collapses the range; redo replays
the splices, which re-insert the text but cannot re-expand the mark.
`extmark_set()` records a position only for a mark it moves, not for one
it creates.
Solution:
Record the created position for redo; undo leaves the mark to the splice
replay, since it did not exist before the edit. Each side of a paired
mark gets its own entry. Redo also revives a mark that undo invalidated,
else its position returns but its highlight does not.
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Problem:
A mark moved by nvim_buf_set_extmark() during an edit is misplaced by
undo and redo. Only splices ("edits") are recorded, and replaying them
reproduces the shifts they caused, never the explicit set: the mark ends
up wherever the text pushed it.
Solution:
When an open undo block moves an existing mark, record both positions.
Undo restores the pre-set position, redo re-applies the set.
Partially reverts 18334a4a0cd9 ; ExtmarkSavePos.row/col were unused
because nothing recorded an explicit move, but now `extmark_set()` does.
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Problem:
The default 'ruler' is implemented in C instead of the 'statusline' DSL.
Solution:
Replace the C implementation with a default 'rulerformat' expression.
This is a continuation of #1248 and #33036.
Advantages:
- configuration is more discoverable, the default being a useful example
- users and plugins can augment the default
- code reuse and less C code to maintain
- ui2: due to the use of an item group with `minwid`, it can expand
instead of truncating when the content gets too long, which is
particularly useful for locales with long translations of Top/Bot/All
Implementation details:
As is the case for 'statusline', when trying to set 'rulerformat' to an
empty string, the default expression is restored instead, mimicking how
previously the default C implementation would have been activated.
Just like before, `:set rulerformat=` and `:set rulerformat&` have the
same effect, and the ruler is disabled with `:set noruler`.
The default expression uses an item group with `%=`, unlike the fallback
in the previous default statusline `%-14.(%l,%c%V%) %P`, because the
total width and how it is configured is immediately clear without
documentation, it is a more useful pattern in general that works when
both sides have flexible width, and it also works for vim, which is
useful for configuration sharing/reuse.
A truncation marker `%<` is added at the end to mimic how at small
screen widths, the scroll percentage would disappear first, so that the
cursor position can remain fully visible.
BREAKING CHANGES:
- `&rulerformat` can no longer be set to an empty string
- ui2: the default ruler is no longer of fixed width, but can expand
- at very small screen widths (< 36 columns)
- ui2: it will no longer try to shrink white-space before truncating
- it truncates gradually from the right, whereas previously, the
scroll percentage would disappear all at once
- l10n can no longer add a space after the comma between line and column
(this was only done for one language: Ukrainian)
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Problem: Traditionally, the ruler in the last line is one cell shorter
than in the statusline, leaving the last cell of the screen blank.
According to code comments, this is in order to prevent unwanted
scrolling on "some" (unspecified, but presumably ancient) terminals.
Berkeley vi is more specific in its `vs_modeline` function: dumb
terminals with hardware scroll, SunOS 4.1.1 and Ultrix 4.2 curses.
(n)curses still has a similar limitation in `(w)addstr`, but apparently
only for historical reasons.
Maintaining the different widths leads to awkward inconsistencies when
the ruler is configured with 'rulerformat', except for the special case
where it contains a top-level `%=`. Shifting the ruler in the last line
to the left would be a solution, but the empty cell at the end doesn't
seem to be relevant anymore.
Solution: extend the ruler in the last line all the way to the right
edge of the screen, just like in the statusline. The exact same amount
of place will be available to the rest of the UI as before.
BREAKING CHANGE:
- the default ruler width is now 18 cells
- the last cell of the screen is no longer empty
Closes #41076
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Problem:
Cannot assign Lua functions/closures to "func" ('completefunc',
'tagfun', …) or "expr" ('foldexpr', 'indentexpr', …) options.
Solution:
- Store "func"/"expr" options as `Callback` instead of string.
- Delete oceans of copy-pasted code.
- BREAKING: LuaRef returned via RPC/Vimscript is now represented as
`"<Lua N: file:line>"` (like what `:map` shows) instead of `nil`.
- Note: `man.vim` still uses `v:lua` string, bc it's a vimscript ftplugin.
Helped-by: Lewis Russell <lewis6991@gmail.com>
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Problem:
Want `gQ` for _le multicursor_.
Solution:
- Don't use `gQ` for exmode.
- Introduce `:exmode`.
- Introduce `[count]q:` as an alias to `:exmode`.
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Problem:
POSIX-compatible Ex-mode requires special-cases all over the codebase to
match various quirks that don't actually matter to users.
- The main utility of *interactive* Ex-mode is its REPL behavior, and
that can be achieved with `cmdwin`, which also gains extra UX
benefits.
- The main utility of *non-interactive* `nvim -es` is for shell
scripting, where Ex-mode quirks are mostly unhelpful (e.g. the
"Entering Ex mode" message).
Solution:
- Reimplement *interactive* Ex-mode as a "persistent, insert-mode
cmdwin" in Lua.
- "nvim -e/-E" is simply an alias to "gQ".
- Reframe *non-interactive* Ex-mode (`nvim -es`) as "script mode".
- Drop POSIX Ex-mode quirks.
Improvements:
- "nvim -V1 -es" output ends with a final newline!
- "nvim -V1 -es" no longer shows the "Entering Ex mode" msg. (This was
pointless noise, unwanted for scripting purposes.)
- stdin is no longer typeahead. Scripts (":lua io.read()") can read
stdin as data.
- Empty line is a no-op: a stray blank line no longer moves the cursor
(deviates from POSIX ex "+1"), no longer exits 1 at EOF (E501).
Preserved behavior:
- cursor starts at "$"
- mode()=="cv" (for non-interactive)
- mul |
