915 Commits

Author SHA1 Message Date
93c2d5bf7f patch 9.1.1526: completion: search completion match may differ in case
Problem:  completion: search completion match may differ in case
          (techntools)
Solution: add "exacttext" to 'wildoptions' value (Girish Palya)

This flag does the following:

exacttext
      When this flag is present, search pattern completion
      (e.g., in |/|, |?|, |:s|, |:g|, |:v|, and |:vim|)
      shows exact buffer text as menu items, without
      preserving regex artifacts like position
      anchors (e.g., |/\<|). This provides more intuitive
      menu items that match the actual buffer text. However,
      searches may be less accurate since the pattern is not
      preserved exactly.
      By default, Vim preserves the typed pattern (with
      anchors) and appends the matched word. This preserves
      search correctness, especially when using regular
      expressions or with 'smartcase' enabled. However, the
      case of the appended matched word may not exactly
      match the case of the word in the buffer.

fixes: #17654
closes: #17667

Signed-off-by: Girish Palya <girishji@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
2025-07-08 21:29:02 +02:00
ba11e78f1d patch 9.1.1512: completion: can only complete from keyword characters
Problem:  completion: can only complete from keyword characters
Solution: remove this restriction, allow completion functions when
          called from i_CTRL-N/i_CTRL-P to be triggered from non-keyword
          characters (Girish Palya)

Previously, functions specified in the `'complete'` option were
restricted to starting completion only from keyword characters (as
introduced in PR 17065). This change removes that restriction.

With this change, user-defined functions (e.g., `omnifunc`, `userfunc`)
used in `'complete'` can now initiate completion even when triggered
from non-keyword characters. This makes it easier to reuse existing
functions alongside other sources without having to consider whether the
cursor is on a keyword or non-keyword character, or worry about where
the replacement should begin (i.e., the `findstart=1` return value).

The logic for both the “collection” and “filtering” phases now fully
respects each source’s specified start column. This also extends to
fuzzy matching, making completions more predictable.

Internally, this builds on previously merged infrastructure that tracks
per-source metadata. This PR focuses on applying that metadata to
compute the leader string and insertion text appropriately for each
match.

Also, a memory corruption has been fixed in prepare_cpt_compl_funcs().

closes: #17651

Signed-off-by: Girish Palya <girishji@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
2025-07-05 16:11:44 +02:00
4ade668fb6 patch 9.1.1507: symlinks are resolved on :cd commands
Problem:  File paths change from symlink to target path after :cd command
          when editing files through symbolic links
Solution: Add "~" flag to 'cpoptions' to control symlink resolution.
          When not included (default), symlinks are resolved maintaining
          backward compatibility. When included, symlinks are preserved
          providing the improved behavior. (glepnir)

related: neovim/neovim#15695
closes: #17628

Signed-off-by: glepnir <glephunter@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
2025-07-03 20:44:50 +02:00
651edf33eb runtime(doc): Tweak documentation style
closes: #17638

Signed-off-by: Hirohito Higashi <h.east.727@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
2025-07-01 22:07:50 +02:00
7a4cf4b256 patch 9.1.1495: Wayland: uses $XDG_SEAT to determine seat
Problem:  Wayland: uses $XDG_SEAT to determine seat to use
          (dr0bz, after v9.1.1485)
Solution: Do not try to determine the seat from $XDG_SEAT, remove the
          code that checks for this environment variable (Foxe Chen).

related: https://github.com/vim/vim/issues/5157#issuecomment-3015248239
closes: #17625

Signed-off-by: Foxe Chen <chen.foxe@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
2025-06-29 18:00:46 +02:00
6b49fba8c8 patch 9.1.1490: 'wildchar' does not work in search contexts
Problem:  'wildchar' does not work in search contexts
Solution: implement search completion when 'wildchar' is typed
          (Girish Palya).

This change enhances Vim's command-line completion by extending
'wildmode' behavior to search pattern contexts, including:

- '/' and '?' search commands
- ':s', ':g', ':v', and ':vim' commands

Completions preserve the exact regex pattern typed by the user,
appending the completed word directly to the original input. This
ensures that all regex elements — such as '<', '^', grouping brackets
'()', wildcards '\*', '.', and other special characters — remain intact
and in their original positions.

---

**Use Case**

While searching (using `/` or `?`) for lines containing a pattern like
`"foobar"`, you can now type a partial pattern (e.g., `/f`) followed by
a trigger key (`wildchar`) to open a **popup completion menu** showing
all matching words.

This offers two key benefits:

1. **Precision**: Select the exact word you're looking for without
typing it fully.
2. **Memory aid**: When you can’t recall a full function or variable
name, typing a few letters helps you visually identify and complete the
correct symbol.

---

**What’s New**

Completion is now supported in the following contexts:

- `/` and `?` search commands
- `:s`, `:g`, `:v`, and `:vimgrep` ex-commands

---

**Design Notes**

- While `'wildchar'` (usually `<Tab>`) triggers completion, you'll have
to use `<CTRL-V><Tab>` or "\t" to search for a literal tab.
- **Responsiveness**: Search remains responsive because it checks for
user input frequently.

---

**Try It Out**

Basic setup using the default `<Tab>` as the completion trigger:

```vim
set wim=noselect,full wop=pum wmnu
```

Now type:

```
/foo<Tab>
```

This opens a completion popup for matches containing "foo".
For matches beginning with "foo" type `/\<foo<Tab>`.

---

**Optional: Autocompletion**

For automatic popup menu completion as you type in search or `:`
commands, include this in your `.vimrc`:

```vim
vim9script
set wim=noselect:lastused,full wop=pum wcm=<C-@> wmnu

autocmd CmdlineChanged [:/?] CmdComplete()

def CmdComplete()
  var [cmdline, curpos, cmdmode] = [getcmdline(), getcmdpos(),
expand('<afile>') == ':']
  var trigger_char = '\%(\w\|[*/:.-]\)$'
  var not_trigger_char = '^\%(\d\|,\|+\|-\)\+$'  # Exclude numeric range
  if getchar(1, {number: true}) == 0  # Typehead is empty, no more
pasted input
      && !wildmenumode() && curpos == cmdline->len() + 1
      && (!cmdmode || (cmdline =~ trigger_char && cmdline !~
not_trigger_char))
    SkipCmdlineChanged()
    feedkeys("\<C-@>", "t")
    timer_start(0, (_) => getcmdline()->substitute('\%x00', '',
'ge')->setcmdline())  # Remove <C-@>
  endif
enddef

def SkipCmdlineChanged(key = ''): string
  set ei+=CmdlineChanged
  timer_start(0, (_) => execute('set ei-=CmdlineChanged'))
  return key == '' ? '' : ((wildmenumode() ? "\<C-E>" : '') .. key)
enddef

**Optional: Preserve history recall behavior**
cnoremap <expr> <Up> SkipCmdlineChanged("\<Up>")
cnoremap <expr> <Down> SkipCmdlineChanged("\<Down>")

**Optional: Customize popup height**
autocmd CmdlineEnter : set bo+=error | exec $'set ph={max([10,
winheight(0) - 4])}'
autocmd CmdlineEnter [/?] set bo+=error | set ph=8
autocmd CmdlineLeave [:/?] set bo-=error ph&
```

closes: #17570

Signed-off-by: Girish Palya <girishji@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
2025-06-28 19:59:36 +02:00
73b9650519 patch 9.1.1486: documentation issues with Wayland
Problem:  documentation issues with Wayland
          (after v9.1.1485)
Solution: Tweak documentation style. Capitalize the first letter of
          Wayland (Hirohito Higashi)

related: #17619

Signed-off-by: Hirohito Higashi <h.east.727@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
2025-06-28 18:18:21 +02:00
b90c2395b2 patch 9.1.1485: missing Wayland clipboard support
Problem:  missing Wayland clipboard support
Solution: make it work (Foxe Chen)

fixes: #5157
closes: #17097

Signed-off-by: Foxe Chen <chen.foxe@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
2025-06-27 21:10:35 +02:00
1c00af2a24 runtime(doc): Remove obsolete labelling from 'h' occasion in :help 'highlight'
The 'h' occasion is now used for "matched text of currently inserted
completion" (defaulting to ComplMatchIns).

closes: #17572

Signed-off-by: Doug Kearns <dougkearns@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
2025-06-18 19:12:07 +02:00
631a50ceb9 runtime(doc): mention cannot ignored events in eventignorewin
closes: #17545

Signed-off-by: glepnir <glephunter@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
2025-06-15 16:05:10 +02:00
91af4c4180 runtime(doc): improve the wording of 'sts', 'varts' and 'varsts' values
closes: #17522

Co-authored-by: Christian Brabandt <cb@256bit.org>
Signed-off-by: Damien Lejay <damien@lejay.be>
Signed-off-by: Christian Brabandt <cb@256bit.org>
2025-06-12 21:56:19 +02:00
053aee01f7 runtime(doc): add more pointers to 'completeopt'
Before this commit, I had trouble finding information about configuring
the insert mode completion. In particular, it was not clear that the
'wildopt' config that I already had in my vimrc does not apply here.

Also, `insert.txt` barely mentioned 'completeopt' except when
describing popups (I was more interested in bash-like behavior
where the unique prefix of all completions is completed first).

I'm hoping these edits will make the relevant docs easier to find.

closes: #17515

Signed-off-by: Ilya Grigoriev <ilyagr@users.noreply.github.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
2025-06-11 21:07:35 +02:00
bfa16364f1 runtime(doc): update documentation on tabstop settings
Unify the treatment of tabstop, correct errors and deprecate smarttab
usage.

closes: #17444

Signed-off-by: Damien Lejay <damien@lejay.be>
Signed-off-by: Christian Brabandt <cb@256bit.org>
2025-06-10 21:12:31 +02:00
8f7256a5ee runtime(doc): fix some style issues and remove obsolete docs
Signed-off-by: Hirohito Higashi <h.east.727@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
2025-06-07 18:31:42 +02:00
002548b81e runtime(doc): Add missing 'wfb' (winfixbuf) tag
closes: #17455

Signed-off-by: Doug Kearns <dougkearns@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
2025-06-05 21:18:09 +02:00
d6c9ac97a0 runtime(doc): clarify the effect of 'smarttab'
closes: #17426

Signed-off-by: Damien Lejay <damien@lejay.be>
Signed-off-by: Christian Brabandt <cb@256bit.org>
2025-06-04 21:19:18 +02:00
bfeefc474a runtime(doc): clarify the effect of exclusive single char selections
closes: #17410

Co-authored-by: zeertzjq <zeertzjq@outlook.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
2025-06-02 19:56:57 +02:00
95ea0b0f8d runtime(doc): make 'shiftwidth' setting more precise
closes: #17414

Signed-off-by: Damien Lejay <damien@lejay.be>
Signed-off-by: Christian Brabandt <cb@256bit.org>
2025-06-01 19:10:36 +02:00
8cc6d8b187 patch 9.1.1419: It is difficult to ignore all but some events
Problem:  It is difficult to ignore all but some events.
Solution: Add support for a "-" prefix syntax in '(win)eventignore' that
          subtracts an event from the ignored set if present
          (Luuk van Baal).

closes: #17392

Signed-off-by: Luuk van Baal <luukvbaal@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
2025-05-31 12:10:31 +02:00
6b2c1ad054 runtime(doc): clarify behaviour of set maxcombine=0
related: #17400

Signed-off-by: Christian Brabandt <cb@256bit.org>
2025-05-30 17:43:42 +02:00
a4a3f712e2 runtime(doc): clarify tabstop settings and guidance
closes: #17381

Signed-off-by: Damien Lejay <damien@lejay.be>
Co-authored-by: Aliaksei Budavei <32549825+zzzyxwvut@users.noreply.github.com>
Co-authored-by: Christian Brabandt <cb@256bit.org>
2025-05-30 17:36:37 +02:00
d65cdadb7b runtime(doc): Fix typos and language in documentation for tabpanel.
closes: #17407

Signed-off-by: Christ van Willegen <cvwillegen@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
2025-05-30 16:05:58 +02:00
f0c7090a38 runtime(doc): trailing whitespace in options.txt, delete it.
Signed-off-by: Christian Brabandt <cb@256bit.org>
2025-05-26 21:18:19 +02:00
a6172f8c5c runtime(doc): Correct allowed characters at :help 'filetype'
closes: #17366

Signed-off-by: Doug Kearns <dougkearns@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
2025-05-26 20:32:35 +02:00
14f6da5ba8 patch 9.1.1409: using f-flag in 'complete' conflicts with Neovim
Problem:  using f-flag in 'complete' conflicts with Neovims filename
          completion (glepnir, after v9.1.1301).
Solution: use upper-case "F" flag for completion functions
          (Girish Palya).

fixes: #17347
closes: #17378

Signed-off-by: Girish Palya <girishji@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
2025-05-26 19:04:25 +02:00
0546068aae patch 9.1.1408: not easily possible to complete from register content
Problem:  not easily possible to complete from register content
Solution: add register-completion submode using i_CTRL-X_CTRL-R
          (glepnir)

closes: #17354

Signed-off-by: glepnir <glephunter@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
2025-05-26 18:25:57 +02:00
7b9eb6389d patch 9.1.1396: 'errorformat' is a global option
Problem:  The 'grepformat' option is global option, but it would be
          useful to have it buffer-local, similar to 'errorformat' and
          other quickfix related options (Dani Dickstein)
Solution: Add the necessary code to support global-local 'grepformat',
          allowing different buffers to parse different grep output
          formats (glepnir)

fixes: #17316
closes: #17315

Signed-off-by: glepnir <glephunter@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
2025-05-16 19:49:23 +02:00
be5bd4d629 patch 9.1.1391: Vim does not have a vertical tabpanel
Problem:  Vim does not have a tabpanel
Solution: include the tabpanel feature
          (Naruhiko Nishino, thinca)

closes: #17263

Co-authored-by: thinca <thinca@gmail.com>
Signed-off-by: Naruhiko Nishino <naru123456789@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
2025-05-14 21:20:28 +02:00
0553f2ff0d runtime(doc): clarify single/multibyte support for 'fillchars'
closes: #17287

Co-authored-by: zeertzjq <zeertzjq@outlook.com>
Signed-off-by: Hirohito Higashi <h.east.727@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
2025-05-10 14:56:17 +02:00
dc314053e1 patch 9.1.1374: completion: 'smartcase' not respected when filtering matches
Problem:  Currently, 'smartcase' is respected when completing keywords
          using <C-N>, <C-P>, <C-X><C-N>, and <C-X><C-P>. However, when
          a user continues typing and the completion menu is filtered
          using cached matches, 'smartcase' is not applied. This leads
          to poor-quality or irrelevant completion suggestions, as shown
          in the example below.
Solution: When filtering cached completion items after typing additional
          characters, apply case-sensitive comparison if 'smartcase' is
          enabled and the typed pattern includes uppercase characters.
          This ensures consistent and expected completion behavior.
          (Girish Palya)

closes: #17271

Signed-off-by: Girish Palya <girishji@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
2025-05-08 23:28:52 +02:00
48b19b29ee patch 9.1.1368: GTK3 and GTK4 will drop numeric cursor support.
Problem:  GTK3 and GTK4 will drop numeric cursor support.
Solution: Adopt GTK3 code and use CSS cursor convention (Drew Vogel).

closes: #14610

Signed-off-by: Drew Vogel <dvogel@github>
Signed-off-by: Christian Brabandt <cb@256bit.org>
2025-05-07 21:36:03 +02:00
fb08192ca7 runtime(doc): clarify the use of 'tagfunc', update a comment in tags.c
related: #17228

Signed-off-by: Christian Brabandt <cb@256bit.org>
2025-04-30 19:35:09 +02:00
fa8b7db99a runtime(doc): tweak documentation style in options.txt
closes: #17229

Signed-off-by: Hirohito Higashi <h.east.727@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
2025-04-30 19:12:37 +02:00
ffc89e47d0 runtime(doc): clarify complete_match() and 'isexpand' option
clarify complete_match() documentation to better explain its backward
search behavior, argument handling, and return value format and add an
example of isexpand

closes: #17212

Signed-off-by: glepnir <glephunter@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
2025-04-27 14:59:17 +02:00
bcd5995b40 patch 9.1.1341: cannot define completion triggers
Problem:  Cannot define completion triggers and act upon it
Solution: add the new option 'isexpand' and add the complete_match()
          function to return the completion matches according to the
          'isexpand' setting (glepnir)

Currently, completion trigger position is determined solely by the
'iskeyword' pattern (\k\+$), which causes issues when users need
different completion behaviors - such as triggering after '/' for
comments or '.' for methods. Modifying 'iskeyword' to include these
characters has undesirable side effects on other Vim functionality that
relies on keyword definitions.

Introduce a new buffer-local option 'isexpand' that allows specifying
different completion triggers and add the complete_match() function that
finds the appropriate start column for completion based on these
triggers, scanning backwards from cursor position.

This separation of concerns allows customized completion behavior
without affecting iskeyword-dependent features. The option's
buffer-local nature enables per-filetype completion triggers.

closes: #16716

Signed-off-by: glepnir <glephunter@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
2025-04-24 21:48:35 +02:00
2398460232 runtime(doc): clarify 'includeexpr' is not used for <cfile>
fixes: #17139

Signed-off-by: Christian Brabandt <cb@256bit.org>
2025-04-19 11:55:26 +02:00
cb3b752f95 runtime(doc): clarify "nearest" value for 'completeopt'
closes: #17146

Signed-off-by: Girish Palya <girishji@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
2025-04-18 18:52:28 +02:00
0ac1eb3555 patch 9.1.1311: completion: not possible to limit number of matches
Problem:  completion: not possible to limit number of matches
Solution: allow to limit the matches for 'complete' sources by using the
          "{flag}^{limit}" notation (Girish Palya)

This change extends the 'complete'  option to support limiting the
number of matches returned from individual completion sources.

**Rationale:** In large files, certain sources (such as the current
buffer) can generate an overwhelming number of matches, which may cause
more relevant results from other sources (e.g., LSP or tags) to be
pushed out of view. By specifying per-source match limits, the
completion menu remains balanced and diverse, improving visibility and
relevance of suggestions.

A caret (`^`) followed by a number can be appended to a source flag to
specify the maximum number of matches for that source. For example:
```
  :set complete=.^9,w,u,t^5
```
In this configuration:
- The current buffer (`.`) will return up to 9 matches.
- The tag completion (`t`) will return up to 5 matches.
- Other sources (`w`, `u`) are not limited.

This feature is fully backward-compatible and does not affect behavior
when the `^count` suffix is not used.

The caret (`^`) was chosen as the delimiter because it is least likely
to appear in file names.

closes: #17087

Signed-off-by: Girish Palya <girishji@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
2025-04-16 20:18:33 +02:00
b156588eb7 patch 9.1.1308: completion: cannot order matches by distance to cursor
Problem:  During insert-mode completion, the most relevant match is often
          the one closest to the cursor—frequently just above the current line.
          However, both `<C-N>` and `<C-P>` tend to rank candidates from the
          current buffer that appear above the cursor near the bottom of the
          completion menu, rather than near the top. This ordering can feel
          unintuitive, especially when `noselect` is active, as it doesn't
          prioritize the most contextually relevant suggestions.

Solution: This change introduces a new sub-option value "nearest" for the
          'completeopt' setting. When enabled, matches from the current buffer
          are prioritized based on their proximity to the cursor position,
          improving the relevance of suggestions during completion
          (Girish Palya).

Key Details:
- Option: "nearest" added to 'completeopt'
- Applies to: Matches from the current buffer only
- Effect: Sorts completion candidates by their distance from the cursor
- Interaction with other options:
  - Has no effect if the `fuzzy` option is also present

This feature is helpful especially when working within large buffers where
multiple similar matches may exist at different locations.

You can test this feature with auto-completion using the snippet below. Try it
in a large file like `vim/src/insexpand.c`, where you'll encounter many
potential matches. You'll notice that the popup menu now typically surfaces the
most relevant matches—those closest to the cursor—at the top. Sorting by
spatial proximity (i.e., contextual relevance) often produces more useful
matches than sorting purely by lexical distance ("fuzzy").

Another way to sort matches is by recency, using an LRU (Least Recently Used)
cache—essentially ranking candidates based on how recently they were used.
However, this is often overkill in practice, as spatial proximity (as provided
by the "nearest" option) is usually sufficient to surface the most relevant
matches.

```vim
set cot=menuone,popup,noselect,nearest inf

def SkipTextChangedIEvent(): string
    # Suppress next event caused by <c-e> (or <c-n> when no matches found)
    set eventignore+=TextChangedI
    timer_start(1, (_) => {
        set eventignore-=TextChangedI
    })
    return ''
enddef

autocmd TextChangedI * InsComplete()

def InsComplete()
    if getcharstr(1) == '' && getline('.')->strpart(0, col('.') - 1) =~ '\k$'
        SkipTextChangedIEvent()
        feedkeys("\<c-n>", "n")
    endif
enddef

inoremap <silent> <c-e> <c-r>=<SID>SkipTextChangedIEvent()<cr><c-e>

inoremap <silent><expr> <tab>   pumvisible() ? "\<c-n>" : "\<tab>"
inoremap <silent><expr> <s-tab> pumvisible() ? "\<c-p>" : "\<s-tab>"
```

closes: #17076

Signed-off-by: Girish Palya <girishji@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
2025-04-15 20:16:00 +02:00
cbe53191d0 patch 9.1.1301: completion: cannot configure completion functions with 'complete'
Problem:  completion: cannot configure completion functions with
          'complete'
Solution: add support for setting completion functions using the f and o
          flag for 'complete' (Girish Palya)

This change adds two new values to the `'complete'` (`'cpt'`) option:
- `f` – invokes the function specified by the `'completefunc'` option
- `f{func}` – invokes a specific function `{func}` (can be a string or `Funcref`)

These new flags extend keyword completion behavior (e.g., via `<C-N>` /
`<C-P>`) by allowing function-based sources to participate in standard keyword
completion.

**Key behaviors:**

- Multiple `f{func}` values can be specified, and all will be called in order.
- Functions should follow the interface defined in `:help complete-functions`.
- When using `f{func}`, escaping is required for spaces (with `\`) and commas
  (with `\\`) in `Funcref` names.
- If a function sets `'refresh'` to `'always'`, it will be re-invoked on every
  change to the input text. Otherwise, Vim will attempt to reuse and filter
  existing matches as the input changes, which matches the default behavior of
  other completion sources.
- Matches are inserted at the keyword boundary for consistency with other completion methods.
- If finding matches is time-consuming, `complete_check()` can be used to
  maintain responsiveness.
- Completion matches are gathered in the sequence defined by the `'cpt'`
  option, preserving source priority.

This feature increases flexibility of standard completion mechanism and may
reduce the need for external completion plugins for many users.

**Examples:**

Complete matches from [LSP](https://github.com/yegappan/lsp) client. Notice the use of `refresh: always` and `function()`.

```vim
set cpt+=ffunction("g:LspCompletor"\\,\ [5]). # maxitems = 5

def! g:LspCompletor(maxitems: number, findstart: number, base: string): any
    if findstart == 1
        return g:LspOmniFunc(findstart, base)
    endif
    return {words: g:LspOmniFunc(findstart, base)->slice(0, maxitems), refresh: 'always'}
enddef
autocmd VimEnter * g:LspOptionsSet({ autoComplete: false, omniComplete: true })
```

Complete matches from `:iabbrev`.

```vim
set cpt+=fAbbrevCompletor

def! g:AbbrevCompletor(findstart: number, base: string): any
    if findstart > 0
        var prefix = getline('.')->strpart(0, col('.') - 1)->matchstr('\S\+$')
        if prefix->empty()
            return -2
        endif
        return col('.') - prefix->len() - 1
    endif
    var lines = execute('ia', 'silent!')
    if lines =~? gettext('No abbreviation found')
        return v:none  # Suppresses warning message
    endif
    var items = []
    for line in lines->split("\n")
        var m = line->matchlist('\v^i\s+\zs(\S+)\s+(.*)$')
        if m->len() > 2 && m[1]->stridx(base) == 0
            items->add({ word: m[1], info: m[2], dup: 1 })
        endif
    endfor
    return items->empty() ? v:none :
        items->sort((v1, v2) => v1.word < v2.word ? -1 : v1.word ==# v2.word ? 0 : 1)
enddef
```

**Auto-completion:**

Vim's standard completion frequently checks for user input while searching for
new matches. It is responsive irrespective of file size. This makes it
well-suited for smooth auto-completion. You can try with above examples:

```vim
set cot=menuone,popup,noselect inf

autocmd TextChangedI * InsComplete()

def InsComplete()
    if getcharstr(1) == '' && getline('.')->strpart(0, col('.') - 1) =~ '\k$'
        SkipTextChangedIEvent()
        feedkeys("\<c-n>", "n")
    endif
enddef

inoremap <silent> <c-e> <c-r>=<SID>SkipTextChangedIEvent()<cr><c-e>

def SkipTextChangedIEvent(): string
    # Suppress next event caused by <c-e> (or <c-n> when no matches found)
    set eventignore+=TextChangedI
    timer_start(1, (_) => {
        set eventignore-=TextChangedI
    })
    return ''
enddef
```

closes: #17065

Co-authored-by: Christian Brabandt <cb@256bit.org>
Co-authored-by: zeertzjq <zeertzjq@outlook.com>
Co-authored-by: glepnir <glephunter@gmail.com>
Signed-off-by: Girish Palya <girishji@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
2025-04-14 22:13:15 +02:00
f4b1a60dd1 runtime(doc): update options.txt and clarify 'wildmode' further
related: #17100

Co-authored-by: Girish Palya <girishji@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
2025-04-13 18:09:50 +02:00
d4dbf822dc patch 9.1.1296: completion: incorrect truncation logic
Problem:  completion: incorrect truncation logic (after: v9.1.1284)
Solution: replace string allocation with direct screen rendering and
          fixe RTL/LTR truncation calculations (glepnir)

closes: #17081

Signed-off-by: glepnir <glephunter@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
2025-04-12 18:39:16 +02:00
eded33621b runtime(doc): Improve 'wildmode' setting desciption
closes: #17100

Signed-off-by: Girish Palya <girishji@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
2025-04-12 18:03:32 +02:00
ab2fe65fbf runtime(doc): correct backslash escaping comma example
closes: #17096

Signed-off-by: Qiming zhao <chemzqm@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
2025-04-12 11:40:17 +02:00
b71f1309a2 patch 9.1.1288: Using wrong window in ll_resize_stack()
Problem:  Using wrong window in ll_resize_stack()
          (after v9.1.1287)
Solution: Use "wp" instead of "curwin", even though they are always the
          same value.  Fix typos in documentation (zeertzjq).

closes: #17080

Signed-off-by: zeertzjq <zeertzjq@outlook.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
2025-04-08 20:31:21 +02:00
b87620466c patch 9.1.1284: not possible to configure pum truncation char
Problem:  not possible to configure the completion menu truncation
          character
Solution: add the "trunc" suboption to the 'fillchars' setting to
          configure the truncation indicator (glepnir).

closes: #17006

Co-authored-by: zeertzjq <zeertzjq@outlook.com>
Signed-off-by: glepnir <glephunter@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
2025-04-07 21:05:16 +02:00
2afdb3a65b runtime(doc): Fix minor typo in options.txt
closes: #17060

Signed-off-by: clach04 <clach04@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
2025-04-06 17:37:12 +02:00
88d41ab270 patch 9.1.1283: quickfix stack is limited to 10 items
Problem:  quickfix and location-list stack is limited to 10 items
Solution: add the 'chistory' and 'lhistory' options to configure a
          larger quickfix/location list stack
          (64-bitman)

closes: #16920

Co-authored-by: Hirohito Higashi <h.east.727@gmail.com>
Signed-off-by: 64-bitman <60551350+64-bitman@users.noreply.github.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
2025-04-06 17:20:39 +02:00
9aa120f7ad patch 9.1.1276: inline word diff treats multibyte chars as word char
Problem:  inline word diff treats multibyte chars as word char
          (after 9.1.1243)
Solution: treat all non-alphanumeric characters as non-word characters
          (Yee Cheng Chin)

Previously inline word diff simply used Vim's definition of keyword to
determine what is a word, which leads to multi-byte character classes
such as emojis and CJK (Chinese/Japanese/Korean) characters all
classifying as word characters, leading to entire sentences being
grouped as a single word which does not provide meaningful information
in a diff highlight.

Fix this by treating all non-alphanumeric characters (with class number
above 2) as non-word characters, as there is usually no benefit in using
word diff on them. These include CJK characters, emojis, and also
subscript/superscript numbers. Meanwhile, multi-byte characters like
Cyrillic and Greek letters will still continue to considered as words.

Note that this is slightly inconsistent with how words are defined
elsewhere, as Vim usually considers any character with class >=2 to be
a "word".

related: #16881 (diff inline highlight)
closes: #17050

Signed-off-by: Yee Cheng Chin <ychin.git@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
2025-04-04 19:16:21 +02:00
5a307c361c patch 9.1.1252: typos in code and docs related to 'diffopt' "inline:"
Problem:  Typos in code and docs related to 'diffopt' "inline:".
          (after v9.1.1243)
Solution: Fix typos and slightly improve the docs.
          (zeertzjq)

closes: #16997

Signed-off-by: zeertzjq <zeertzjq@outlook.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
2025-03-28 19:04:06 +01:00