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vim-patch:9.1.1742: complete: preinsert does not work well with 'autocomplete' (#35692)

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Problem:  complete: preinsert does not work well with preinsert
Solution: Make "preinsert" completeopt value work with autocompletion
          (Girish Palya)

This change extends Insert mode autocompletion so that 'preinsert' also
works when 'autocomplete' is enabled.

Try: `:set ac cot=preinsert`

See `:help 'cot'` for more details.

closes: vim/vim#18213

fa6fd41a94

Co-authored-by: Girish Palya <girishji@gmail.com>
This commit is contained in:
zeertzjq
2025-09-09 11:35:41 +08:00
committed by GitHub
parent c553008e74
commit eb19206e03
16 changed files with 382 additions and 78 deletions
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34
src/nvim/options.lua
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@@ -1483,10 +1483,11 @@ local options = {
values = { '.', 'w', 'b', 'u', 'k', 'kspell', 's', 'i', 'd', ']', 't', 'U', 'f', 'F', 'o' },
deny_duplicates = true,
desc = [=[
This option specifies how keyword completion |ins-completion| works
when CTRL-P or CTRL-N are used. It is also used for whole-line
completion |i_CTRL-X_CTRL-L|. It indicates the type of completion
and the places to scan. It is a comma-separated list of flags:
This option controls how completion |ins-completion| behaves when
using CTRL-P, CTRL-N, or |ins-autocompletion|. It is also used for
whole-line completion |i_CTRL-X_CTRL-L|. It indicates the type of
completion and the places to scan. It is a comma-separated list of
flags:
. scan the current buffer ('wrapscan' is ignored)
w scan buffers from other windows
b scan other loaded buffers that are in the buffer list
@@ -1531,9 +1532,11 @@ local options = {
(gzipped files for example). Unloaded buffers are not scanned for
whole-line completion.
As you can see, CTRL-N and CTRL-P can be used to do any 'iskeyword'-
based expansion (e.g., dictionary |i_CTRL-X_CTRL-K|, included patterns
|i_CTRL-X_CTRL-I|, tags |i_CTRL-X_CTRL-]| and normal expansions).
CTRL-N, CTRL-P, and |ins-autocompletion| can be used for any
'iskeyword'-based completion (dictionary |i_CTRL-X_CTRL-K|, included
patterns |i_CTRL-X_CTRL-I|, tags |i_CTRL-X_CTRL-]|, and normal
expansions). With the "F" and "o" flags in 'complete', non-keywords
can also be completed.
An optional match limit can be specified for a completion source by
appending a caret ("^") followed by a {count} to the source flag.
@@ -1697,17 +1700,22 @@ local options = {
with "menu" or "menuone". Overrides "preview".
preinsert
Preinsert the portion of the first candidate word that is
not part of the current completion leader and using the
|hl-ComplMatchIns| highlight group. In order for it to
work, "fuzzy" must not be set and "menuone" must be set.
When autocompletion is not enabled, inserts the part of the
first candidate word beyond the current completion leader,
highlighted with |hl-ComplMatchIns|. The cursor does not
move. Requires "fuzzy" unset and "menuone" in 'completeopt'.
When 'autocomplete' is enabled, inserts the longest common
prefix of matches (from all shown items or buffer-specific
matches), highlighted with |hl-PreInsert|. This occurs only
when no menu item is selected. Press CTRL-Y to accept.
preview Show extra information about the currently selected
completion in the preview window. Only works in
combination with "menu" or "menuone".
Only "fuzzy", "popup" and "preview" have an effect when 'autocomplete'
is enabled.
Only "fuzzy", "popup", "preinsert" and "preview" have an effect when
'autocomplete' is enabled.
This option does not apply to |cmdline-completion|. See 'wildoptions'
for that.