Problem:
Multigrid UIs have to find out which window to send the input by using
the Nvim focus rules, which are not fully documented.
Furthermore,`getmousepos()` has several problems when multigrid is
enabled, with the main one being that screenrow and screencol are window
relative instead of screen relative, due to the fact that the UI don't
send any absolute coordinates.
Solution:
Allow passing 0 as grid to `nvim_input_mouse`, with absolute
coordinates, which lets nvim determine the actual window to send the
mouse input to. This works as long as nvim is in charge of the window
positioning. If the UI repositions or resizes the windows, it can still
pass the grid it determines like before.
Problem: attrs allocation and fuzzy growarray could leak on early
returns
Solution: Ensure proper cleanup of allocated memory on exit paths
(glepnir)
closes: vim/vim#18038c7c10f8c11
Co-authored-by: glepnir <glephunter@gmail.com>
These are not needed after #35129 but making uncrustify still play nice
with them was a bit tricky.
Unfortunately `uncrustify --update-config-with-doc` breaks strings
with backslashes. This issue has been reported upstream,
and in the meanwhile auto-update on every single run has been disabled.
Problem: fuzzy-matching can be improved
Solution: Implement a better fuzzy matching algorithm
(Girish Palya)
Replace fuzzy matching algorithm with improved fzy-based implementation
The
[current](https://www.forrestthewoods.com/blog/reverse_engineering_sublime_texts_fuzzy_match/)
fuzzy matching algorithm has several accuracy issues:
* It struggles with CamelCase
* It fails to prioritize matches at the beginning of strings, often
ranking middle matches higher.
After evaluating alternatives (see my comments
[here](https://github.com/vim/vim/issues/17531#issuecomment-3112046897)
and
[here](https://github.com/vim/vim/issues/17531#issuecomment-3121593900)),
I chose to adopt the [fzy](https://github.com/jhawthorn/fzy) algorithm,
which:
* Resolves the aforementioned issues.
* Performs better.
Implementation details
This version is based on the original fzy
[algorithm](https://github.com/jhawthorn/fzy/blob/master/src/match.c),
with one key enhancement: **multibyte character support**.
* The original implementation supports only ASCII.
* This patch replaces ascii lookup tables with function calls, making it
compatible with multibyte character sets.
* Core logic (`match_row()` and `match_positions()`) remains faithful to
the original, but now operates on codepoints rather than single-byte
characters.
Performance
Tested against a dataset of **90,000 Linux kernel filenames**. Results
(in milliseconds) show a **\~2x performance improvement** over the
current fuzzy matching algorithm.
```
Search String Current Algo FZY Algo
-------------------------------------------------
init 131.759 66.916
main 83.688 40.861
sig 98.348 39.699
index 109.222 30.738
ab 72.222 44.357
cd 83.036 54.739
a 58.94 62.242
b 43.612 43.442
c 64.39 67.442
k 40.585 36.371
z 34.708 22.781
w 38.033 30.109
cpa 82.596 38.116
arz 84.251 23.964
zzzz 35.823 22.75
dimag 110.686 29.646
xa 43.188 29.199
nha 73.953 31.001
nedax 94.775 29.568
dbue 79.846 25.902
fp 46.826 31.641
tr 90.951 55.883
kw 38.875 23.194
rp 101.575 55.775
kkkkkkkkkkkkkkkkkkkkkkkkkkkkk 48.519 30.921
```
```vim
vim9script
var haystack = readfile('/Users/gp/linux.files')
var needles = ['init', 'main', 'sig', 'index', 'ab', 'cd', 'a', 'b',
'c', 'k',
'z', 'w', 'cpa', 'arz', 'zzzz', 'dimag', 'xa', 'nha', 'nedax',
'dbue',
'fp', 'tr', 'kw', 'rp', 'kkkkkkkkkkkkkkkkkkkkkkkkkkkkk']
for needle in needles
var start = reltime()
var tmp = matchfuzzy(haystack, needle)
echom $'{needle}' (start->reltime()->reltimefloat() * 1000)
endfor
```
Additional changes
* Removed the "camelcase" option from both matchfuzzy() and
matchfuzzypos(), as it's now obsolete with the improved algorithm.
related: neovim/neovim#34101fixesvim/vim#17531closes: vim/vim#179007e0df5eee9
Co-authored-by: Girish Palya <girishji@gmail.com>
Problem: Vim crashes during omnifunc completion inside the command-line
window ("q:") if the completion item attempts to open an "info"
preview window. This leads to a failed assert during execution.
Solution: Avoid opening preview windows while inside the command-line
window to prevent the crash (Girish Palya).
closes: vim/vim#17764e4fdb1e4e7
Co-authored-by: Girish Palya <girishji@gmail.com>
Problem: When items are combined with user-defined highlight attributes
(e.g., strikethrough), trunc inherits these attributes, making
the text difficult to read.
Solution: trunc now uses the original Pmenu and PmenuSel highlight
attributes (glepnir)
closes: vim/vim#173400816f17e9a
Co-authored-by: glepnir <glephunter@gmail.com>
Problem: UIs implementing ext_cmdline/message must also implement
ext_popupmenu in order to get cmdline completion with
wildoptions+=pum.
Solution: Allow marking a window as the ext_cmdline window through
nvim_open_win(), including prompt offset. Anchor the cmdline-
completion popupmenu to this window.
Problem: Parts of the popup menu were rendered twice when the popup was
at maximum width because the truncation flag was being set too
liberally.
Solution: Make the truncation condition more precise by only setting it
when there's exactly one character of space remaining
(glepnir).
closes: vim/vim#1710832f2bb6e1e
Co-authored-by: glepnir <glephunter@gmail.com>
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: vim/vim#17006b87620466c
Co-authored-by: glepnir <glephunter@gmail.com>
Problem: Mixing vim_strsize() with mb_ptr2cells() in pum_redraw().
Solution: Change vim_strsize() to mb_string2cells() (zeertzjq).
Since vim_strsize() uses ptr2cells() for the cell width of each char, it
is strange to mix it with mb_ptr2cells(), which is used both just below
and in pum_screen_puts_with_attr(), and screen_puts_len() also uses
something similar. Meanwhile mb_string2cells() uses mb_ptr2cells() for
the cell width of each char.
Note that the vim_strsize() and mb_string2cells() actually return the
same value here, as the transstr() above makes sure the string only
contains printable chars, and ptr2cells() and mb_ptr2cells() only return
different values for unprintable chars.
closes: vim/vim#1700390e52490b3
Problem: missing test condition for 'pummaxwidth' setting, pummaxwidth
not effective when width is 32 and height is 10
(after v9.1.1250)
Solution: add missing comparison condition in pum_width()
(glepnir)
closes: vim/vim#16999532c5aec6f
Co-authored-by: glepnir <glephunter@gmail.com>
Problem: cannot set the maximum popup menu width
(Lucas Mior)
Solution: add the new global option value 'pummaxwidth'
(glepnir)
fixes: vim/vim#10901closes: vim/vim#1694388d75934c3
Co-authored-by: glepnir <glephunter@gmail.com>
Problem:
"use_float" in the if-condition causes a new buffer to be generated on every execution.
Solution:
- Remove the incorrect use_float check from the condition.
- Use buf_clear to properly clear the existing buffer.
Problem:
1. The original info text is truncated in pum_set_preview_text.
2. There is an extra newline character at the end of the info text.
3. Incorrect usage of plines_win leads to errors in calculating the window height.
Solution:
1. Improved string handling in pum_preview_set_text to safely process line content without modifying the original text. Now, the preview info is correctly preserved while splitting lines.
2. Do not append a trailing newline to the preview buffer when one is present at the end.
3. Set w_widher_inner in advance; otherwise, plines_win cannot correctly calculate the wrapped line height.
Problem: wildmenu highlighting in popup can be improved
Solution: Check if the completion items contain submatches of the
entered text (Girish Palya).
This update enables highlighting in the popup menu even when the matched
fragment or pattern appears within an item (string) rather than only at the
beginning. This is especially useful for custom completion, where menu items
may not always start with the typed pattern.
For specific use cases, refer to the two examples in
https://github.com/vim/vim/pull/16759
A sliding window approach is used with direct string comparison. Performance
is not a concern, as highlighting is applied only to displayed lines, even if
the menu list is arbitrarily long.
closes: vim/vim#167854ec46f3210
Co-authored-by: Girish Palya <girishji@gmail.com>
Problem:
popup floating window is closed and recreated for each item selection,
this is a bit wasteful.
Solution:
- Hide the preview win (instead of closing it) when the menu is still displayed:
1. When selected_item is -1.
2. When switching from an item with an "info" field to one without.
- When pum is undisplayed it is still closed.
Problem: Popup menu internal error with some abbr in completion item.
Solution: Don't compute attributes when there is no corresponding text.
Reduce indent in pum_redraw() while at it (zeertzjq).
fixes: vim/vim#16427closes: vim/vim#164353a0cc36c69
Problem: when popup preview buffer has filetype like markdown and ts
is enabled, the extmark clean and update not correct, if add the extmark
sync there has lots of duplicate codes like nvim_buf_set_lines.
Solution: use nvim_buf_set_lines api internally to set info to popup
preview buffer.
Problem: completion may crash, completion highlight wrong with preview
window (after v9.1.0954)
Solution: correctly calculate scroll offset, check for preview window
when adding extra highlighting
(glepnir)
when there have a preview window prepare_tagpreview
will change curwin to preview window and this may cause
ComplMatchIns check condition not correct. check wp is curwin
and also the type of wp is not a preview or poup info
fixes: https://github.com/vim/vim/issues/16284
closes: https://github.com/vim/vim/pull/162838d0bb6dc9f
Problem: popupmenu.c can be improved
Solution: slightly refactor the logic
(glepnir)
closes: vim/vim#16271
Replace some if blocks and combine user attr abstract to an inline
function.
89a107efd1
Co-authored-by: glepnir <glephunter@gmail.com>
Problem: wrong MIN macro in popupmenu.c (after v9.1.0921)
(zeertzjq)
Solution: change it to MAX()
618c4d36ca
Co-authored-by: Christian Brabandt <cb@256bit.org>
Co-authored-by: glepnir <glephunter@gmail.com>
Problem: popupmenu logic is a bit convoluted
Solution: slightly refactor logic and use MIN/MAX() macros to simplify
(glepnir)
Define the MAX/MIN macros. Since we support some older platforms, C
compilers may not be as smart. This helps reduce unnecessary if
statements and redundant ternary expressions. Pre-calculate some
expressions by defining variables. Remove unnecessary parentheses.
Adjust certain lines to avoid exceeding 80 columns.
closes: vim/vim#16205c942f84aad
Co-authored-by: glepnir <glephunter@gmail.com>
Problem: Float preview window still exist when back at original.
Or no info item is selected.
Solution: if selected is -1 or no info is selected, if float preview
window exist close it first.
Problem: Option metadata like list of valid values for an option and
option flags are not listed in the `options.lua` file and are instead
manually defined in C, which means option metadata is split between
several places.
Solution: Put metadata such as list of valid values for an option and
option flags in `options.lua`, and autogenerate the corresponding C
variables and enums.
Supersedes #28659
Co-authored-by: glepnir <glephunter@gmail.com>
Problem: using wrong highlight group for spaces for popupmenu
Solution: use original attribute instead of combined attributed
(glepnir)
closes: vim/vim#15978bc10be7a40
Co-authored-by: glepnir <glephunter@gmail.com>
Problem: Selecting an item in the right-click menu when clicking to the
left/right of it is confusing, especially in a UI that doesn't
support 'mousemoveevent'.
Solution: Don't select an item when clicking to the left/right of the
right-click menu.
Problem: some missing changes from v9.1.0771
Solution: use correct highlighting attribute and adjust comments
(glepnir)
closes: vim/vim#158367baa014d0f
Co-authored-by: glepnir <glephunter@gmail.com>
Problem: Currently completion attribute hl_group is combined with
all items, which is redundant and confusing with kind_hlgroup
Solution: Renamed to abbr_hlgroup and combine it only with the abbr item
(glepnir).
closes: vim/vim#158180fe17f8ffb
Co-authored-by: glepnir <glephunter@gmail.com>
Problem: fixed order of items in insert-mode completion menu
Solution: Introduce the 'completeitemalign' option with default
value "abbr,kind,menu" (glepnir).
Adding an new option `completeitemalign` abbr is `cia` to custom
the complete-item order in popupmenu.
closes: vim/vim#14006closes: vim/vim#157606a89c94a9e
Problem: cannot set special highlight kind in popupmenu
Solution: add kind_hlgroup item to complete function
(glepnir)
closes: vim/vim#1556138f99a1f0d
Co-authored-by: glepnir <glephunter@gmail.com>
Problem: Rename of pum hl_group is incomplete in source.
Solution: Also rename the test function. Rename to user_hlattr in code
to avoid confusion with pum_extra. Add test with matched text
highlighting (zeertzjq).
closes: vim/vim#153484100852e09
Problem: cannot mark deprecated attributes in completion menu
Solution: add hl_group to the Dictionary of supported completion fields
(glepnir)
closes: vim/vim#15314508e7856ec
Co-authored-by: glepnir <glephunter@gmail.com>
Problem: Right release selects immediately when pum is truncated.
Solution: Use pum_height instead of pum_size when checking click row.
Don't place it above mouse row when there is more space below.
(zeertzjq)
fixes: vim/vim#15101closes: vim/vim#15102761a420c66
Problem: matched text is highlighted case-sensitively
Solution: use MB_STRNICMP, update highlighting when the base changes
(glepnir)
fixes: vim/vim#15021closes: vim/vim#15023f189138b39
Co-authored-by: glepnir <glephunter@gmail.com>
Problem: Matched text isn't highlighted in cmdline pum.
Solution: Use cmdline completion pattern in cmdline mode.
(zeertzjq)
closes: vim/vim#15029d8c9340fc6
Cherry-pick syntax.txt change from runtime update.
