Merge d9b4d321d0 into a0d8c2b86e

Problem:
The `gx` mapping has too much logic in it, so the logic is not in user
configs or plugins, and it lacks test coverage.

Solution:
Move the logic into `vim.ui.open()`.

.github/workflows/backport.yml

@@ -26,3 +26,21 @@ jobs:
           pull_title: "${pull_title}"
           label_pattern: "^ci:backport ([^ ]+)$"
           github_token: ${{ steps.app-token.outputs.token }}
+
+      - name: Create failed backport label
+        if: ${{ steps.backport.outputs.was_successful == 'false' }}
+        uses: actions/github-script@v7
+        with:
+          script: |
+            github.rest.issues.addLabels({
+              issue_number: context.issue.number,
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+              labels: ['needs:backport']
+            })
+
+      - name: Enable automerge
+        if: ${{ steps.backport.outputs.was_successful == 'true' }}
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        run: gh pr merge --rebase --auto ${{ steps.backport.outputs.created_pull_numbers }}

.github/workflows/reviewers_add.yml

@@ -5,7 +5,7 @@ on:
   workflow_call:
 jobs:
   request-reviewer:
-    if: github.event.pull_request.state == 'open' && github.event.pull_request.draft == false
+    if: github.event.pull_request.state == 'open' && github.event.pull_request.draft == false && !endsWith(github.actor, '[bot]')
     runs-on: ubuntu-latest
     permissions:
       pull-requests: write

cmake.deps/deps.txt

@@ -7,8 +7,8 @@ LUAJIT_SHA256 2b5514bd6a6573cb6111b43d013e952cbaf46762d14ebe26c872ddb80b5a84e0
 LUA_URL https://www.lua.org/ftp/lua-5.1.5.tar.gz
 LUA_SHA256 2640fc56a795f29d28ef15e13c34a47e223960b0240e8cb0a82d9b0738695333
 
-UNIBILIUM_URL https://github.com/neovim/unibilium/archive/d72c3598e7ac5d1ebf86ee268b8b4ed95c0fa628.tar.gz
-UNIBILIUM_SHA256 9c4747c862ab5e3076dcf8fa8f0ea7a6b50f20ec5905618b9536655596797487
+UNIBILIUM_URL https://github.com/neovim/unibilium/archive/v2.1.2.tar.gz
+UNIBILIUM_SHA256 370ecb07fbbc20d91d1b350c55f1c806b06bf86797e164081ccc977fc9b3af7a
 
 LUV_URL https://github.com/luvit/luv/releases/download/1.48.0-2/luv-1.48.0-2.tar.gz
 LUV_SHA256 2c3a1ddfebb4f6550293a40ee789f7122e97647eede51511f57203de48c03b7a
@@ -38,18 +38,18 @@ LIBICONV_SHA256 8f74213b56238c85a50a5329f77e06198771e70dd9a739779f4c02f65d971313
 UTF8PROC_URL https://github.com/JuliaStrings/utf8proc/archive/3de4596fbe28956855df2ecb3c11c0bbc3535838.tar.gz
 UTF8PROC_SHA256 fb4a16bb659b58afb7f921fcc8928d0b3c1fcab135366c8a4f9ca7de1b1cfada
 
-TREESITTER_C_URL https://github.com/tree-sitter/tree-sitter-c/archive/v0.21.3.tar.gz
-TREESITTER_C_SHA256 75a3780df6114cd37496761c4a7c9fd900c78bee3a2707f590d78c0ca3a24368
-TREESITTER_LUA_URL https://github.com/tree-sitter-grammars/tree-sitter-lua/archive/v0.1.0.tar.gz
-TREESITTER_LUA_SHA256 230cfcbfa74ed1f7b8149e9a1f34c2efc4c589a71fe0f5dc8560622f8020d722
+TREESITTER_C_URL https://github.com/tree-sitter/tree-sitter-c/archive/v0.23.0.tar.gz
+TREESITTER_C_SHA256 ee58c925e2e507c23d735aad46bf7fb0af31ca06d6f4f41bc008216d9232b0cb
+TREESITTER_LUA_URL https://github.com/tree-sitter-grammars/tree-sitter-lua/archive/v0.2.0.tar.gz
+TREESITTER_LUA_SHA256 6c41227cd0a59047b19d31f0031d4d901f08bfd78d6fc7f55c89e5b8374c794e
 TREESITTER_VIM_URL https://github.com/neovim/tree-sitter-vim/archive/v0.4.0.tar.gz
 TREESITTER_VIM_SHA256 9f856f8b4a10ab43348550fa2d3cb2846ae3d8e60f45887200549c051c66f9d5
 TREESITTER_VIMDOC_URL https://github.com/neovim/tree-sitter-vimdoc/archive/v3.0.0.tar.gz
 TREESITTER_VIMDOC_SHA256 a639bf92bf57bfa1cdc90ca16af27bfaf26a9779064776dd4be34c1ef1453f6c
 TREESITTER_QUERY_URL https://github.com/tree-sitter-grammars/tree-sitter-query/archive/v0.4.0.tar.gz
 TREESITTER_QUERY_SHA256 d3a423ab66dc62b2969625e280116678a8a22582b5ff087795222108db2f6a6e
-TREESITTER_MARKDOWN_URL https://github.com/MDeiml/tree-sitter-markdown/archive/v0.2.3.tar.gz
-TREESITTER_MARKDOWN_SHA256 4909d6023643f1afc3ab219585d4035b7403f3a17849782ab803c5f73c8a31d5
+TREESITTER_MARKDOWN_URL https://github.com/tree-sitter-grammars/tree-sitter-markdown/archive/v0.3.2.tar.gz
+TREESITTER_MARKDOWN_SHA256 5dac48a6d971eb545aab665d59a18180d21963afc781bbf40f9077c06cb82ae5
 TREESITTER_URL https://github.com/tree-sitter/tree-sitter/archive/v0.23.0.tar.gz
 TREESITTER_SHA256 6403b361b0014999e96f61b9c84d6950d42f0c7d6e806be79382e0232e48a11b
 

runtime/autoload/netrw.vim

@@ -23,6 +23,7 @@
 "   2024 Aug 15 by Vim Project: style changes, prevent E121 (#15501)
 "   2024 Aug 22 by Vim Project: fix mf-selection highlight (#15551)
 "   2024 Aug 22 by Vim Project: adjust echo output of mx command (#15550)
+"   2024 Sep 15 by Vim Project: more strict confirmation dialog (#15680)
 "   }}}
 " Former Maintainer:	Charles E Campbell
 " GetLatestVimScripts: 1075 1 :AutoInstall: netrw.vim
@@ -11275,7 +11276,7 @@ fun! s:NetrwLocalRm(path) range
     let ok= s:NetrwLocalRmFile(a:path,fname,all)
     if ok =~# 'q\%[uit]' || ok == "no"
      break
-    elseif ok =~# 'a\%[ll]'
+    elseif ok =~# '^a\%[ll]$'
      let all= 1
     endif
    endfor
@@ -11304,7 +11305,7 @@ fun! s:NetrwLocalRm(path) range
     let ok= s:NetrwLocalRmFile(a:path,curword,all)
     if ok =~# 'q\%[uit]' || ok == "no"
      break
-    elseif ok =~# 'a\%[ll]'
+    elseif ok =~# '^a\%[ll]$'
      let all= 1
     endif
     let ctr= ctr + 1
@@ -11351,12 +11352,12 @@ fun! s:NetrwLocalRmFile(path,fname,all)
 "    call Decho("response: ok<".ok.">",'~'.expand("<slnum>"))
     let ok= substitute(ok,'\[{y(es)},n(o),a(ll),q(uit)]\s*','','e')
 "    call Decho("response: ok<".ok."> (after sub)",'~'.expand("<slnum>"))
-    if ok =~# 'a\%[ll]'
+    if ok =~# '^a\%[ll]$'
      let all= 1
     endif
    endif
 
-   if all || ok =~# 'y\%[es]' || ok == ""
+   if all || ok =~# '^y\%[es]$' || ok == ""
     let ret= s:NetrwDelete(rmfile)
 "    call Decho("errcode=".v:shell_error." ret=".ret,'~'.expand("<slnum>"))
    endif
@@ -11372,13 +11373,13 @@ fun! s:NetrwLocalRmFile(path,fname,all)
     if ok == ""
      let ok="no"
     endif
-    if ok =~# 'a\%[ll]'
+    if ok =~# '^a\%[ll]$'
      let all= 1
     endif
    endif
    let rmfile= substitute(rmfile,'[\/]$','','e')
 
-   if all || ok =~# 'y\%[es]' || ok == ""
+   if all || ok =~# '^y\%[es]$' || ok == ""
     if delete(rmfile,"rf")
      call netrw#ErrorMsg(s:ERROR,"unable to delete directory <".rmfile.">!",103)
     endif

runtime/compiler/README.txt

@@ -4,6 +4,8 @@ They are used with the ":compiler" command.
 These scripts usually set options, for example 'errorformat'.
 See ":help write-compiler-plugin".
 
+To undo the effect of a compiler plugin, use the make compiler plugin.
+
 If you want to write your own compiler plugin, have a look at the other files
 for how to do it, the format is simple.
 

runtime/compiler/groff.vim

@@ -0,0 +1,45 @@
+" Vim compiler file
+" Compiler:     Groff
+" Maintainer:   Konfekt
+" Last Change:	2024 Sep 8
+"
+" Expects output file extension, say `:make html` or `:make pdf`.
+" Supported devices as of Sept 2024 are: (x)html, pdf, ps, dvi, lj4, lbp ...
+" Adjust command-line flags, language, encoding by buffer-local/global variables
+" groff_compiler_args, groff_compiler_lang, and groff_compiler_encoding,
+" which default to '', &spelllang and 'utf8'.
+
+if exists("current_compiler")
+  finish
+endif
+
+let s:keepcpo = &cpo
+set cpo&vim
+
+let current_compiler = 'groff'
+
+silent! function s:groff_compiler_lang()
+  let lang = get(b:, 'groff_compiler_lang',
+      \ &spell ? matchstr(&spelllang, '^\a\a') : '')
+  if lang ==# 'en' | let lang = '' | endif
+  return empty(lang) ? '' : '-m'..lang
+endfunction
+
+" Requires output format (= device) to be set by user after :make.
+execute 'CompilerSet makeprg=groff'..escape(
+    \ ' '..s:groff_compiler_lang()..
+    \ ' -K'..get(b:, 'groff_compiler_encoding', get(g:, 'groff_compiler_encoding', 'utf8'))..
+    \ ' '..get(b:, 'groff_compiler_args', get(g:, 'groff_compiler_args', ''))..
+    \ ' -mom -T$* -- %:S > %:r:S.$*', ' ')
+" From Gavin Freeborn's https://github.com/Gavinok/vim-troff under Vim License
+" https://github.com/Gavinok/vim-troff/blob/91017b1423caa80aba541c997909a4f810edd275/compiler/troff.vim#L39
+CompilerSet errorformat=%o:<standard\ input>\ (%f):%l:%m,
+			\%o:\ <standard\ input>\ (%f):%l:%m,
+			\%o:%f:%l:%m,
+			\%o:\ %f:%l:%m,
+			\%f:%l:\ macro\ %trror:%m,
+			\%f:%l:%m,
+			\%W%tarning:\ file\ '%f'\\,\ around\ line\ %l:,%Z%m
+
+let &cpo = s:keepcpo
+unlet s:keepcpo

runtime/compiler/make.vim

@@ -0,0 +1,13 @@
+" Vim compiler plugin
+"
+" Maintainer:	The Vim Project <https://github.com/vim/vim>
+" Last Change:	2024 Sep 10
+" Original Author: Konfekt
+"
+" This compiler plugin is used to reset previously set compiler options.
+
+if exists("g:current_compiler") | unlet g:current_compiler | endif
+if exists("b:current_compiler") | unlet b:current_compiler | endif
+
+CompilerSet makeprg&
+CompilerSet errorformat&

runtime/compiler/pandoc.vim

@@ -1,10 +1,12 @@
 " Vim compiler file
 " Compiler:     Pandoc
 " Maintainer:   Konfekt
-" Last Change:	2024 Aug 20
+" Last Change:	2024 Sep 8
 "
 " Expects output file extension, say `:make html` or `:make pdf`.
 " Passes additional arguments to pandoc, say `:make html --self-contained`.
+" Adjust command-line flags by buffer-local/global variable
+" b/g:pandoc_compiler_args which defaults to empty.
 
 if exists("current_compiler")
   finish
@@ -40,18 +42,21 @@ silent! function s:PandocFiletype(filetype) abort
   endif
 endfunction
 
-let b:pandoc_compiler_from = get(b:, 'pandoc_compiler_from', s:PandocFiletype(&filetype))
-let b:pandoc_compiler_lang = get(b:, 'pandoc_compiler_lang', &spell ? matchstr(&spelllang, '^\a\a') : '')
+silent! function s:PandocLang()
+  let lang = get(b:, 'pandoc_compiler_lang',
+      \ &spell ? matchstr(&spelllang, '^\a\a') : '')
+  if lang ==# 'en' | let lang = '' | endif
+  return empty(lang) ? '' : '--metadata lang='..lang
+endfunction
 
 execute 'CompilerSet makeprg=pandoc'..escape(
-      \ ' --standalone' .
-      \ (b:pandoc_compiler_from ==# 'markdown' && (getline(1) =~# '^%\s\+\S\+' || (search('^title:\s+\S+', 'cnw') > 0)) ?
-      \ '' : ' --metadata title=%:t:r:S') .
-      \ (empty(b:pandoc_compiler_lang) ?
-      \ '' : ' --metadata lang='..b:pandoc_compiler_lang) .
-      \ ' --from='..b:pandoc_compiler_from .
-      \ ' '..get(b:, 'pandoc_compiler_args', get(g:, 'pandoc_compiler_args', '')) .
-      \ ' --output %:r:S.$* -- %:S', ' ')
+    \ ' --standalone'..
+    \ (s:PandocFiletype(&filetype) ==# 'markdown' && (getline(1) =~# '^%\s\+\S\+' || (search('^title:\s+\S+', 'cnw') > 0)) ?
+    \ '' : ' --metadata title=%:t:r:S')..
+    \ ' '..s:PandocLang()..
+    \ ' --from='..s:PandocFiletype(&filetype)..
+    \ ' '..get(b:, 'pandoc_compiler_args', get(g:, 'pandoc_compiler_args', ''))..
+    \ ' --output %:r:S.$* -- %:S', ' ')
 CompilerSet errorformat=\"%f\",\ line\ %l:\ %m
 
 let &cpo = s:keepcpo

runtime/doc/builtin.txt

@@ -6201,6 +6201,9 @@ search({pattern} [, {flags} [, {stopline} [, {timeout} [, {skip}]]]]) *search()*
 		The value must not be negative.  A zero value is like not
 		giving the argument.
 
+		Note: the timeout is only considered when searching, not
+		while evaluating the {skip} expression.
+
 		If the {skip} expression is given it is evaluated with the
 		cursor positioned on the start of a match.  If it evaluates to
 		non-zero this match is skipped.  This can be used, for

runtime/doc/lua.txt

@@ -2230,6 +2230,12 @@ vim.tbl_count({t})                                           *vim.tbl_count()*
 vim.tbl_deep_extend({behavior}, {...})                 *vim.tbl_deep_extend()*
     Merges recursively two or more tables.
 
+    Only values that are empty tables or tables that are not |lua-list|s
+    (indexed by consecutive integers starting from 1) are merged recursively.
+    This is useful for merging nested tables like default and user
+    configurations where lists should be treated as literals (i.e., are
+    overwritten instead of merged).
+
     Parameters: ~
       • {behavior}  (`'error'|'keep'|'force'`) Decides what to do if a key is
                     found in more than one map:
@@ -2553,7 +2559,7 @@ vim.ui.input({opts}, {on_confirm})                            *vim.ui.input()*
                       typed (it might be an empty string if nothing was
                       entered), or `nil` if the user aborted the dialog.
 
-vim.ui.open({path})                                            *vim.ui.open()*
+vim.ui.open({path}, {opt})                                     *vim.ui.open()*
     Opens `path` with the system default handler (macOS `open`, Windows
     `explorer.exe`, Linux `xdg-open`, …), or returns (but does not show) an
     error message on failure.
@@ -2564,6 +2570,8 @@ vim.ui.open({path})                                            *vim.ui.open()*
         -- Asynchronous.
         vim.ui.open("https://neovim.io/")
         vim.ui.open("~/path/to/file")
+        -- Use the "osurl" command to handle the path or URL.
+        vim.ui.open("gh#neovim/neovim!29490", { cmd = { 'osurl' } })
         -- Synchronous (wait until the process exits).
         local cmd, err = vim.ui.open("$VIMRUNTIME")
         if cmd then
@@ -2573,6 +2581,8 @@ vim.ui.open({path})                                            *vim.ui.open()*
 
     Parameters: ~
       • {path}  (`string`) Path or URL to open
+      • {opt}   (`{ cmd?: string[] }?`) Options
+                • cmd string[]|nil Command used to open the path or URL.
 
     Return (multiple): ~
         (`vim.SystemObj?`) Command object, or nil if not found.

runtime/doc/news.txt

@@ -189,11 +189,15 @@ TREESITTER
 
 TUI
 
-• TODO
+• |log| messages written by the builtin UI client (TUI, |--remote-ui|) are
+  now prefixed with "ui" instead of "?".
 
 UI
 
-• TODO
+• |vim.ui.open()| (by default bound to |gx|) accepts an `opt.cmd` parameter
+  which controls the tool used to open the given path or URL. If you want to
+  globally set this, you can override vim.ui.open using the same approach
+  described at |vim.paste()|.
 
 ==============================================================================
 CHANGED FEATURES                                                 *news-changed*
@@ -214,9 +218,6 @@ These existing features changed their behavior.
   more emoji characters than before, including those encoded with multiple
   emoji codepoints combined with ZWJ (zero width joiner) codepoints.
 
-• |vim.tbl_deep_extend()| no longer ignores any values for which |vim.isarray()|
-  returns `true`.
-
 ==============================================================================
 REMOVED FEATURES                                                 *news-removed*
 

runtime/doc/options.txt

@@ -6713,7 +6713,7 @@ A jump table for the options with a short description can be found at |Q_op|.
 			global
 	When on, the title of the window will be set to the value of
 	'titlestring' (if it is not empty), or to:
-		filename [+=-] (path) - NVIM
+		filename [+=-] (path) - Nvim
 	Where:
 		filename	the name of the file being edited
 		-		indicates the file cannot be modified, 'ma' off
@@ -6721,7 +6721,7 @@ A jump table for the options with a short description can be found at |Q_op|.
 		=		indicates the file is read-only
 		=+		indicates the file is read-only and modified
 		(path)		is the path of the file being edited
-		- NVIM		the server name |v:servername| or "NVIM"
+		- Nvim		the server name |v:servername| or "Nvim"
 
 							*'titlelen'*
 'titlelen'		number	(default 85)

runtime/doc/quickfix.txt

@@ -1262,6 +1262,7 @@ not "b:current_compiler".  What the command actually does is the following:
 
 For writing a compiler plugin, see |write-compiler-plugin|.
 
+Use the |compiler-make| plugin to undo the effect of a compiler plugin.
 
 DOTNET							*compiler-dotnet*
 
@@ -1277,7 +1278,6 @@ Example: limit output to only display errors, and suppress the project name: >
 	let dotnet_show_project_file = v:false
 	compiler dotnet
 <
-
 GCC					*quickfix-gcc*	*compiler-gcc*
 
 There's one variable you can set for the GCC compiler:
@@ -1294,6 +1294,24 @@ Commonly used compiler options can be added to 'makeprg' by setting the
 g:javac_makeprg_params variable.  For example: >
 	let g:javac_makeprg_params = "-Xlint:all -encoding utf-8"
 <
+GNU MAKE						*compiler-make*
+
+Since the default make program is "make", the compiler plugin for make,
+:compiler make, will reset the 'makeprg' and 'errorformat' option to
+the default values and unlet any variables that may have been set by a
+previous compiler plugin.
+
+GROFF					*quickfix-groff* *compiler-groff*
+
+The GROFF compiler plugin uses the mom macro set (documented in the groff_mom
+manpage) as input and expects that the output file type extension is passed to
+make, say :make html or :make pdf.
+
+Additional arguments can be passed to groff by setting them in
+`b:groff_compiler_args` or `g:groff_compiler_args`. The `language` argument
+passed to groff is set using 'spelllang'; it can be overridden by setting
+`b:groff_compiler_lang`. The default enconding is `UTF-8` and can be changed
+by setting `b:groff_compiler_encoding` or `g:groff_compiler_encoding`.
 
 PANDOC					*quickfix-pandoc* *compiler-pandoc*
 
@@ -1307,8 +1325,7 @@ Additional arguments can be passed to pandoc:
 
 The `--from` argument is an educated guess using the buffer file type;
 it can be overridden by setting `b:pandoc_compiler_from`.
-Likewise the `--metadata lang` argument is set using `&spelllang`;
-it can be overridden by setting `b:pandoc_compiler_lang`.
+The `--metadata lang` argument is set using 'spelllang';
 If `--from=markdown` is assumed and no title set in a title header or
 YAML block, then the filename (without extension) is used as the title.
 

runtime/doc/syntax.txt

@@ -1683,6 +1683,12 @@ In order to highlight nested parens with different colors, define colors for
 or >
 	:hi javaParen ctermfg=blue guifg=#0000ff
 
+Certain modifiers are incompatible with each other, e.g. `abstract` and
+`final`: >
+	:syn list javaConceptKind
+and can be differently highlighted as a group than other modifiers with >
+	:hi link javaConceptKind NonText
+
 If you notice highlighting errors while scrolling backwards, which are fixed
 when redrawing with CTRL-L, try setting the "g:java_minlines" variable to
 a larger number: >

runtime/doc/windows.txt

@@ -53,11 +53,17 @@ active		  yes		 yes		  'a'
 hidden		  no		 yes		  'h'
 inactive	  no		 no		  ' '
 
-Note: All CTRL-W commands can also be executed with |:wincmd|, for those
-places where a Normal mode command can't be used or is inconvenient.
+							*buffer-reuse*
+Each buffer has a unique number and the number will not change within a Vim
+session.  The |bufnr()| and |bufname()| functions can be used to convert
+between a buffer name and the buffer number.  There is one exception: if a new
+empty buffer is created and it is not modified, the buffer will be re-used
+when loading another file into that buffer. This also means the buffer number
+will not change.
 
 The main Vim window can hold several split windows.  There are also tab pages
 |tab-page|, each of which can hold multiple windows.
+
 					*window-ID* *winid* *windowid*
 Each window has a unique identifier called the window ID.  This identifier
 will not change within a Vim session. The |win_getid()| and |win_id2tabwin()|
@@ -69,9 +75,6 @@ across tabs.  For most functions that take a window ID or a window number, the
 window number only applies to the current tab, while the window ID can refer
 to a window in any tab.
 
-Each buffer has a unique number and the number will not change within a Vim
-session.  The |bufnr()| and |bufname()| functions can be used to convert
-between a buffer name and the buffer number.
 
 ==============================================================================
 2. Starting Vim						*windows-starting*
@@ -468,6 +471,10 @@ These commands can also be executed with ":wincmd":
 			:exe nr .. "wincmd w"
 <		This goes to window "nr".
 
+Note: All CTRL-W commands can also be executed with |:wincmd|, for those
+places where a Normal mode command can't be used or is inconvenient (e.g.
+in a browser-based terminal).
+
 ==============================================================================
 5. Moving windows around				*window-moving*
 

runtime/ftplugin/dot.lua

@@ -0,0 +1,3 @@
+vim.bo.commentstring = '// %s'
+
+vim.b.undo_ftplugin = (vim.b.undo_ftplugin or '') .. '\n setl commentstring<'

runtime/ftplugin/faust.lua

@@ -0,0 +1,3 @@
+vim.bo.commentstring = '// %s'
+
+vim.b.undo_ftplugin = (vim.b.undo_ftplugin or '') .. '\n setl commentstring<'

runtime/ftplugin/spec.vim

@@ -2,8 +2,9 @@
 " Filename: spec.vim
 " Maintainer: Igor Gnatenko i.gnatenko.brain@gmail.com
 " Former Maintainer: Gustavo Niemeyer <niemeyer@conectiva.com> (until March 2014)
-" Last Change: Mon Jun 01 21:15 MSK 2015 Igor Gnatenko
-" Update by Zdenek Dohnal, 2022 May 17
+" Last Change: 2015 Jun 01
+"  Update by Zdenek Dohnal, 2022 May 17
+"  2024 Sep 10 by Vim Project: add epoch support for spec changelog, #15537
 
 if exists("b:did_ftplugin")
 	finish
@@ -66,9 +67,11 @@ if !exists("*s:SpecChangelog")
 		endif
 		let line = 0
 		let name = ""
+		let epoch = ""
 		let ver = ""
 		let rel = ""
 		let nameline = -1
+		let epochline = -1
 		let verline = -1
 		let relline = -1
 		let chgline = -1
@@ -77,6 +80,9 @@ if !exists("*s:SpecChangelog")
 			if name == "" && linestr =~? '^Name:'
 				let nameline = line
 				let name = substitute(strpart(linestr,5), '^[	 ]*\([^ 	]\+\)[		]*$','\1','')
+			elseif epoch == "" && linestr =~? '^Epoch:'
+				let epochline = line
+				let epoch = substitute(strpart(linestr,6), '^[     ]*\([^         ]\+\)[          ]*$','\1','')
 			elseif ver == "" && linestr =~? '^Version:'
 				let verline = line
 				let ver = substitute(strpart(linestr,8), '^[	 ]*\([^ 	]\+\)[		]*$','\1','')
@@ -93,6 +99,7 @@ if !exists("*s:SpecChangelog")
 		if nameline != -1 && verline != -1 && relline != -1
 			let include_release_info = exists("g:spec_chglog_release_info")
 			let name = s:ParseRpmVars(name, nameline)
+			let epoch = s:ParseRpmVars(epoch, epochline)
 			let ver = s:ParseRpmVars(ver, verline)
 			let rel = s:ParseRpmVars(rel, relline)
 		else
@@ -117,6 +124,9 @@ if !exists("*s:SpecChangelog")
 		if chgline != -1
 			let tmptime = v:lc_time
 			language time C
+			if strlen(epoch)
+				let ver = epoch.":".ver
+			endif
 			let parsed_format = "* ".strftime(format)." - ".ver."-".rel
 			execute "language time" tmptime
 			let release_info = "+ ".name."-".ver."-".rel

runtime/ftplugin/stata.lua

@@ -0,0 +1,3 @@
+vim.bo.commentstring = '// %s'
+
+vim.b.undo_ftplugin = (vim.b.undo_ftplugin or '') .. '\n setl commentstring<'

runtime/ftplugin/supercollider.lua

@@ -0,0 +1,3 @@
+vim.bo.commentstring = '// %s'
+
+vim.b.undo_ftplugin = (vim.b.undo_ftplugin or '') .. '\n setl commentstring<'

runtime/ftplugin/swift.lua

@@ -0,0 +1,3 @@
+vim.bo.commentstring = '// %s'
+
+vim.b.undo_ftplugin = vim.b.undo_ftplugin .. ' | setl commentstring<'

runtime/lua/tohtml.lua

@@ -1293,9 +1293,25 @@ local function opt_to_global_state(opt, title)
   local fonts = {}
   if opt.font then
     fonts = type(opt.font) == 'string' and { opt.font } or opt.font --[[@as (string[])]]
+    for i, v in pairs(fonts) do
+      fonts[i] = ('"%s"'):format(v)
+    end
   elseif vim.o.guifont:match('^[^:]+') then
-    table.insert(fonts, vim.o.guifont:match('^[^:]+'))
+    -- Example:
+    -- Input: "Font,Escape\,comma, Ignore space after comma"
+    -- Output: { "Font","Escape,comma","Ignore space after comma" }
+    local prev = ''
+    for name in vim.gsplit(vim.o.guifont:match('^[^:]+'), ',', { trimempty = true }) do
+      if vim.endswith(name, '\\') then
+        prev = prev .. vim.trim(name:sub(1, -2) .. ',')
+      elseif vim.trim(name) ~= '' then
+        table.insert(fonts, ('"%s%s"'):format(prev, vim.trim(name)))
+        prev = ''
+      end
+    end
   end
+  -- Generic family names (monospace here) must not be quoted
+  -- because the browser recognizes them as font families.
   table.insert(fonts, 'monospace')
   --- @type vim.tohtml.state.global
   local state = {

runtime/lua/vim/_comment.lua

@@ -9,8 +9,8 @@
 local function get_commentstring(ref_position)
   local buf_cs = vim.bo.commentstring
 
-  local has_ts_parser, ts_parser = pcall(vim.treesitter.get_parser)
-  if not has_ts_parser then
+  local ts_parser = vim.treesitter._get_parser()
+  if not ts_parser then
     return buf_cs
   end
 

runtime/lua/vim/_defaults.lua

@@ -189,23 +189,25 @@ end
 --- Default menus
 do
   --- Right click popup menu
-  local function def_menu(ctx)
-    vim.cmd([[
-      anoremenu PopUp.Go\ to\ definition      <Cmd>lua vim.lsp.buf.definition()<CR>
-      amenu     PopUp.Open\ in\ web\ browser  gx
-      anoremenu PopUp.Inspect                 <Cmd>Inspect<CR>
-      anoremenu PopUp.-1-                     <Nop>
-      vnoremenu PopUp.Cut                     "+x
-      vnoremenu PopUp.Copy                    "+y
-      anoremenu PopUp.Paste                   "+gP
-      vnoremenu PopUp.Paste                   "+P
-      vnoremenu PopUp.Delete                  "_x
-      nnoremenu PopUp.Select\ All             ggVG
-      vnoremenu PopUp.Select\ All             gg0oG$
-      inoremenu PopUp.Select\ All             <C-Home><C-O>VG
-      anoremenu PopUp.-2-                     <Nop>
-      anoremenu PopUp.How-to\ disable\ mouse  <Cmd>help disable-mouse<CR>
+  vim.cmd([[
+    anoremenu PopUp.Go\ to\ definition      <Cmd>lua vim.lsp.buf.definition()<CR>
+    amenu     PopUp.Open\ in\ web\ browser  gx
+    anoremenu PopUp.Inspect                 <Cmd>Inspect<CR>
+    anoremenu PopUp.-1-                     <Nop>
+    vnoremenu PopUp.Cut                     "+x
+    vnoremenu PopUp.Copy                    "+y
+    anoremenu PopUp.Paste                   "+gP
+    vnoremenu PopUp.Paste                   "+P
+    vnoremenu PopUp.Delete                  "_x
+    nnoremenu PopUp.Select\ All             ggVG
+    vnoremenu PopUp.Select\ All             gg0oG$
+    inoremenu PopUp.Select\ All             <C-Home><C-O>VG
+    anoremenu PopUp.-2-                     <Nop>
+    anoremenu PopUp.How-to\ disable\ mouse  <Cmd>help disable-mouse<CR>
+  ]])
 
+  local function enable_ctx_menu(ctx)
+    vim.cmd([[
       amenu disable PopUp.Go\ to\ definition
       amenu disable PopUp.Open\ in\ web\ browser
     ]])
@@ -216,7 +218,6 @@ do
       vim.cmd([[anoremenu enable PopUp.Go\ to\ definition]])
     end
   end
-  def_menu()
 
   local nvim_popupmenu_augroup = vim.api.nvim_create_augroup('nvim_popupmenu', {})
   vim.api.nvim_create_autocmd('MenuPopup', {
@@ -228,7 +229,7 @@ do
       local urls = require('vim.ui')._get_urls()
       local url = vim.startswith(urls[1], 'http')
       local ctx = url and 'url' or (vim.lsp.get_clients({ bufnr = 0 })[1] and 'lsp' or nil)
-      def_menu(ctx)
+      enable_ctx_menu(ctx)
     end,
   })
 end

runtime/lua/vim/_meta/options.lua

@@ -7255,7 +7255,7 @@ vim.go.tm = vim.go.timeoutlen
 
 --- When on, the title of the window will be set to the value of
 --- 'titlestring' (if it is not empty), or to:
---- 	filename [+=-] (path) - NVIM
+--- 	filename [+=-] (path) - Nvim
 --- Where:
 --- 	filename	the name of the file being edited
 --- 	-		indicates the file cannot be modified, 'ma' off
@@ -7263,7 +7263,7 @@ vim.go.tm = vim.go.timeoutlen
 --- 	=		indicates the file is read-only
 --- 	=+		indicates the file is read-only and modified
 --- 	(path)		is the path of the file being edited
---- 	- NVIM		the server name `v:servername` or "NVIM"
+--- 	- Nvim		the server name `v:servername` or "Nvim"
 ---
 --- @type boolean
 vim.o.title = false

runtime/lua/vim/_meta/vimfn.lua

@@ -6703,7 +6703,7 @@ function vim.fn.printf(fmt, expr1) end
 --- If the buffer doesn't exist or isn't a prompt buffer, an empty
 --- string is returned.
 ---
---- @param buf any
+--- @param buf integer|string
 --- @return any
 function vim.fn.prompt_getprompt(buf) end
 
@@ -6738,8 +6738,8 @@ function vim.fn.prompt_getprompt(buf) end
 ---    endfunc
 ---    call prompt_setcallback(bufnr(), function('s:TextEntered'))
 ---
---- @param buf any
---- @param expr any
+--- @param buf integer|string
+--- @param expr string|function
 --- @return any
 function vim.fn.prompt_setcallback(buf, expr) end
 
@@ -6751,8 +6751,8 @@ function vim.fn.prompt_setcallback(buf, expr) end
 --- mode.  Without setting a callback Vim will exit Insert mode,
 --- as in any buffer.
 ---
---- @param buf any
---- @param expr any
+--- @param buf integer|string
+--- @param expr string|function
 --- @return any
 function vim.fn.prompt_setinterrupt(buf, expr) end
 
@@ -6763,8 +6763,8 @@ function vim.fn.prompt_setinterrupt(buf, expr) end
 ---   call prompt_setprompt(bufnr(''), 'command: ')
 --- <
 ---
---- @param buf any
---- @param text any
+--- @param buf integer|string
+--- @param text string
 --- @return any
 function vim.fn.prompt_setprompt(buf, text) end
 
@@ -7421,6 +7421,9 @@ function vim.fn.screenstring(row, col) end
 --- The value must not be negative.  A zero value is like not
 --- giving the argument.
 ---
+--- Note: the timeout is only considered when searching, not
+--- while evaluating the {skip} expression.
+---
 --- If the {skip} expression is given it is evaluated with the
 --- cursor positioned on the start of a match.  If it evaluates to
 --- non-zero this match is skipped.  This can be used, for

runtime/lua/vim/filetype.lua

@@ -280,12 +280,7 @@ local extension = {
   cfi = 'cf',
   hgrc = 'cfg',
   cfg = detect.cfg,
-  cfG = detect.cfg,
-  cFg = detect.cfg,
-  cFG = detect.cfg,
   Cfg = detect.cfg,
-  CfG = detect.cfg,
-  CFg = detect.cfg,
   CFG = detect.cfg,
   chf = 'ch',
   chai = 'chaiscript',
@@ -370,12 +365,7 @@ local extension = {
   drt = 'dart',
   ds = 'datascript',
   dat = detect.dat,
-  daT = detect.dat,
-  dAt = detect.dat,
-  dAT = detect.dat,
   Dat = detect.dat,
-  DaT = detect.dat,
-  DAt = detect.dat,
   DAT = detect.dat,
   dcd = 'dcd',
   decl = detect.decl,
@@ -658,12 +648,7 @@ local extension = {
   kt = 'kotlin',
   ktm = 'kotlin',
   sub = 'krl',
-  suB = 'krl',
-  sUb = 'krl',
-  sUB = 'krl',
   Sub = 'krl',
-  SuB = 'krl',
-  SUb = 'krl',
   SUB = 'krl',
   ks = 'kscript',
   k = 'kwt',
@@ -699,12 +684,7 @@ local extension = {
   lite = 'lite',
   livemd = 'livebook',
   log = detect.log,
-  loG = detect.log,
-  lOg = detect.log,
-  lOG = detect.log,
   Log = detect.log,
-  LoG = detect.log,
-  LOg = detect.log,
   LOG = detect.log,
   lgt = 'logtalk',
   lotos = 'lotos',
@@ -773,12 +753,7 @@ local extension = {
   mmp = 'mmp',
   mms = detect.mms,
   mod = detect.mod,
-  moD = detect.mod,
-  mOd = detect.mod,
-  mOD = detect.mod,
   Mod = detect.mod,
-  MoD = detect.mod,
-  MOd = detect.mod,
   MOD = detect.mod,
   DEF = 'modula2',
   m3 = 'modula3',
@@ -948,12 +923,7 @@ local extension = {
   ih = 'ppwiz',
   action = 'privoxy',
   prg = detect.prg,
-  prG = detect.prg,
-  pRg = detect.prg,
-  pRG = detect.prg,
   Prg = detect.prg,
-  PrG = detect.prg,
-  PRg = detect.prg,
   PRG = detect.prg,
   pc = 'proc',
   pdb = 'prolog',
@@ -1133,12 +1103,7 @@ local extension = {
   sqr = 'sqr',
   nut = 'squirrel',
   src = detect.src,
-  srC = detect.src,
-  sRc = detect.src,
-  sRC = detect.src,
   Src = detect.src,
-  SrC = detect.src,
-  SRc = detect.src,
   SRC = detect.src,
   s28 = 'srec',
   s37 = 'srec',
@@ -1164,15 +1129,11 @@ local extension = {
   svelte = 'svelte',
   svg = 'svg',
   swift = 'swift',
+  swiftinterface = 'swift',
   swig = 'swig',
   swg = 'swig',
   sys = detect.sys,
-  syS = detect.sys,
-  sYs = detect.sys,
-  sYS = detect.sys,
   Sys = detect.sys,
-  SyS = detect.sys,
-  SYs = detect.sys,
   SYS = detect.sys,
   svh = 'systemverilog',
   sv = 'systemverilog',

runtime/lua/vim/health.lua

@@ -285,8 +285,8 @@ local path2name = function(path)
     -- Remove everything up to the last /lua/ folder
     path = path:gsub('^.*/lua/', '')
 
-    -- Remove the filename (health.lua)
-    path = vim.fs.dirname(path)
+    -- Remove the filename (health.lua) or (health/init.lua)
+    path = vim.fs.dirname(path:gsub('/init%.lua$', ''))
 
     -- Change slashes to dots
     path = path:gsub('/', '.')

runtime/lua/vim/lsp/buf.lua

@@ -447,11 +447,9 @@ function M.document_symbol(opts)
   request_with_opts(ms.textDocument_documentSymbol, params, opts)
 end
 
---- @param call_hierarchy_items lsp.CallHierarchyItem[]?
+--- @param call_hierarchy_items lsp.CallHierarchyItem[]
+--- @return lsp.CallHierarchyItem?
 local function pick_call_hierarchy_item(call_hierarchy_items)
-  if not call_hierarchy_items then
-    return
-  end
   if #call_hierarchy_items == 1 then
     return call_hierarchy_items[1]
   end
@@ -476,7 +474,7 @@ local function call_hierarchy(method)
       vim.notify(err.message, vim.log.levels.WARN)
       return
     end
-    if not result then
+    if not result or vim.tbl_isempty(result) then
       vim.notify('No item resolved', vim.log.levels.WARN)
       return
     end

runtime/lua/vim/lsp/inlay_hint.lua

@@ -43,17 +43,16 @@ function M.on_inlayhint(err, result, ctx, _)
     return
   end
   local bufnr = assert(ctx.bufnr)
-  if util.buf_versions[bufnr] ~= ctx.version then
+  if
+    util.buf_versions[bufnr] ~= ctx.version
+    or not result
+    or not api.nvim_buf_is_loaded(bufnr)
+    or not bufstates[bufnr].enabled
+  then
     return
   end
   local client_id = ctx.client_id
-  if not result then
-    return
-  end
   local bufstate = bufstates[bufnr]
-  if not bufstate.enabled then
-    return
-  end
   if not (bufstate.client_hints and bufstate.version) then
     bufstate.client_hints = vim.defaulttable()
     bufstate.version = ctx.version
@@ -77,12 +76,7 @@ function M.on_inlayhint(err, result, ctx, _)
     local col = position.character
     if col > 0 then
       local line = lines[position.line + 1] or ''
-      local ok, convert_result
-      ok, convert_result = pcall(util._str_byteindex_enc, line, col, client.offset_encoding)
-      if ok then
-        return convert_result
-      end
-      return math.min(#line, col)
+      return util._str_byteindex_enc(line, col, client.offset_encoding)
     end
     return col
   end

runtime/lua/vim/lsp/semantic_tokens.lua

@@ -140,12 +140,7 @@ local function tokens_to_ranges(data, bufnr, client, request)
     local function _get_byte_pos(col)
       if col > 0 then
         local buf_line = lines[line + 1] or ''
-        local ok, result
-        ok, result = pcall(util._str_byteindex_enc, buf_line, col, client.offset_encoding)
-        if ok then
-          return result
-        end
-        return math.min(#buf_line, col)
+        return util._str_byteindex_enc(buf_line, col, client.offset_encoding)
       end
       return col
     end

runtime/lua/vim/lsp/util.lua

@@ -119,6 +119,7 @@ end
 ---@param encoding string|nil utf-8|utf-16|utf-32|nil defaults to utf-16
 ---@return integer `encoding` index of `index` in `line`
 function M._str_utfindex_enc(line, index, encoding)
+  local len32, len16 = vim.str_utfindex(line)
   if not encoding then
     encoding = 'utf-16'
   end
@@ -129,9 +130,15 @@ function M._str_utfindex_enc(line, index, encoding)
       return #line
     end
   elseif encoding == 'utf-16' then
+    if not index or index > len16 then
+      return len16
+    end
     local _, col16 = vim.str_utfindex(line, index)
     return col16
   elseif encoding == 'utf-32' then
+    if not index or index > len32 then
+      return len32
+    end
     local col32, _ = vim.str_utfindex(line, index)
     return col32
   else
@@ -147,6 +154,12 @@ end
 ---@param encoding string utf-8|utf-16|utf-32| defaults to utf-16
 ---@return integer byte (utf-8) index of `encoding` index `index` in `line`
 function M._str_byteindex_enc(line, index, encoding)
+  local len = #line
+  if index > len then
+    -- LSP spec: if character > line length, default to the line length.
+    -- https://microsoft.github.io/language-server-protocol/specifications/lsp/3.17/specification/#position
+    return len
+  end
   if not encoding then
     encoding = 'utf-16'
   end
@@ -154,7 +167,7 @@ function M._str_byteindex_enc(line, index, encoding)
     if index then
       return index
     else
-      return #line
+      return len
     end
   elseif encoding == 'utf-16' then
     return vim.str_byteindex(line, index, true)
@@ -165,9 +178,6 @@ function M._str_byteindex_enc(line, index, encoding)
   end
 end
 
-local _str_utfindex_enc = M._str_utfindex_enc
-local _str_byteindex_enc = M._str_byteindex_enc
-
 --- Replaces text in a range with new text.
 ---
 --- CAUTION: Changes in-place!
@@ -334,12 +344,7 @@ local function get_line_byte_from_position(bufnr, position, offset_encoding)
   -- character
   if col > 0 then
     local line = get_line(bufnr, position.line) or ''
-    local ok, result
-    ok, result = pcall(_str_byteindex_enc, line, col, offset_encoding)
-    if ok then
-      return result
-    end
-    return math.min(#line, col)
+    return M._str_byteindex_enc(line, col, offset_encoding or 'utf-16')
   end
   return col
 end
@@ -436,14 +441,15 @@ function M.apply_text_edits(text_edits, bufnr, offset_encoding)
         e.end_col = last_line_len
         has_eol_text_edit = true
       else
-        -- If the replacement is over the end of a line (i.e. e.end_col is out of bounds and the
+        -- If the replacement is over the end of a line (i.e. e.end_col is equal to the line length and the
         -- replacement text ends with a newline We can likely assume that the replacement is assumed
         -- to be meant to replace the newline with another newline and we need to make sure this
         -- doesn't add an extra empty line. E.g. when the last line to be replaced contains a '\r'
         -- in the file some servers (clangd on windows) will include that character in the line
         -- while nvim_buf_set_text doesn't count it as part of the line.
         if
-          e.end_col > last_line_len
+          e.end_col >= last_line_len
+          and text_edit.range['end'].character > e.end_col
           and #text_edit.newText > 0
           and string.sub(text_edit.newText, -1) == '\n'
         then
@@ -1795,17 +1801,9 @@ function M.locations_to_items(locations, offset_encoding)
       local row = pos.line
       local end_row = end_pos.line
       local line = lines[row] or ''
-      local line_len = vim.fn.strcharlen(line)
       local end_line = lines[end_row] or ''
-      local end_line_len = vim.fn.strcharlen(end_line)
-      -- LSP spec: if character > line length, default to the line length.
-      -- https://microsoft.github.io/language-server-protocol/specifications/lsp/3.17/specification/#position
-      local col = pos.character <= line_len
-          and M._str_byteindex_enc(line, pos.character, offset_encoding)
-        or line_len
-      local end_col = end_pos.character <= end_line_len
-          and M._str_byteindex_enc(end_line, end_pos.character, offset_encoding)
-        or end_line_len
+      local col = M._str_byteindex_enc(line, pos.character, offset_encoding)
+      local end_col = M._str_byteindex_enc(end_line, end_pos.character, offset_encoding)
 
       table.insert(items, {
         filename = filename,
@@ -1935,7 +1933,7 @@ local function make_position_param(window, offset_encoding)
     return { line = 0, character = 0 }
   end
 
-  col = _str_utfindex_enc(line, col, offset_encoding)
+  col = M._str_utfindex_enc(line, col, offset_encoding)
 
   return { line = row, character = col }
 end
@@ -2117,11 +2115,7 @@ function M.character_offset(buf, row, col, offset_encoding)
     )
     offset_encoding = vim.lsp.get_clients({ bufnr = buf })[1].offset_encoding
   end
-  -- If the col is past the EOL, use the line length.
-  if col > #line then
-    return _str_utfindex_enc(line, nil, offset_encoding)
-  end
-  return _str_utfindex_enc(line, col, offset_encoding)
+  return M._str_utfindex_enc(line, col, offset_encoding)
 end
 
 --- Helper function to return nested values in language server settings

runtime/lua/vim/shared.lua

@@ -354,6 +354,12 @@ function vim.tbl_isempty(t)
   return next(t) == nil
 end
 
+--- We only merge empty tables or tables that are not list-like (indexed by consecutive integers
+--- starting from 1)
+local function can_merge(v)
+  return type(v) == 'table' and (vim.tbl_isempty(v) or not vim.islist(v))
+end
+
 --- Recursive worker for tbl_extend
 --- @param behavior 'error'|'keep'|'force'
 --- @param deep_extend boolean
@@ -368,7 +374,7 @@ local function tbl_extend_rec(behavior, deep_extend, ...)
     local tbl = select(i, ...) --[[@as table<any,any>]]
     if tbl then
       for k, v in pairs(tbl) do
-        if deep_extend and type(v) == 'table' and type(ret[k]) == 'table' then
+        if deep_extend and can_merge(v) and can_merge(ret[k]) then
           ret[k] = tbl_extend_rec(behavior, true, ret[k], v)
         elseif behavior ~= 'force' and ret[k] ~= nil then
           if behavior == 'error' then
@@ -421,6 +427,11 @@ end
 
 --- Merges recursively two or more tables.
 ---
+--- Only values that are empty tables or tables that are not |lua-list|s (indexed by consecutive
+--- integers starting from 1) are merged recursively. This is useful for merging nested tables
+--- like default and user configurations where lists should be treated as literals (i.e., are
+--- overwritten instead of merged).
+---
 ---@see |vim.tbl_extend()|
 ---
 ---@generic T1: table

runtime/lua/vim/treesitter.lua

@@ -74,14 +74,14 @@ end
 
 --- Returns the parser for a specific buffer and attaches it to the buffer
 ---
---- If needed, this will create the parser.
+--- If needed, this will create the parser. If no parser can be found or created, returns `nil`.
 ---
 ---@param bufnr (integer|nil) Buffer the parser should be tied to (default: current buffer)
 ---@param lang (string|nil) Language of this parser (default: from buffer filetype)
 ---@param opts (table|nil) Options to pass to the created language tree
 ---
----@return vim.treesitter.LanguageTree object to use for parsing
-function M.get_parser(bufnr, lang, opts)
+---@return vim.treesitter.LanguageTree? object to use for parsing, or `nil` if not found
+function M._get_parser(bufnr, lang, opts)
   opts = opts or {}
 
   if bufnr == nil or bufnr == 0 then
@@ -94,18 +94,14 @@ function M.get_parser(bufnr, lang, opts)
 
   if not valid_lang(lang) then
     if not parsers[bufnr] then
-      error(
-        string.format(
-          'There is no parser available for buffer %d and one could not be'
-            .. ' created because lang could not be determined. Either pass lang'
-            .. ' or set the buffer filetype',
-          bufnr
-        )
-      )
+      return nil
     end
   elseif parsers[bufnr] == nil or parsers[bufnr]:lang() ~= lang then
-    assert(lang, 'lang should be valid')
-    parsers[bufnr] = M._create_parser(bufnr, lang, opts)
+    local parser = vim.F.npcall(M._create_parser, bufnr, lang, opts)
+    if not parser then
+      return nil
+    end
+    parsers[bufnr] = parser
   end
 
   parsers[bufnr]:register_cbs(opts.buf_attach_cbs)
@@ -113,6 +109,29 @@ function M.get_parser(bufnr, lang, opts)
   return parsers[bufnr]
 end
 
+--- Returns the parser for a specific buffer and attaches it to the buffer
+---
+--- If needed, this will create the parser.
+---
+---@param bufnr (integer|nil) Buffer the parser should be tied to (default: current buffer)
+---@param lang (string|nil) Language of this parser (default: from buffer filetype)
+---@param opts (table|nil) Options to pass to the created language tree
+---
+---@return vim.treesitter.LanguageTree object to use for parsing
+function M.get_parser(bufnr, lang, opts)
+  -- TODO(ribru17): Remove _get_parser and move that logic back here once the breaking function
+  -- signature change is acceptable.
+  local parser = M._get_parser(bufnr, lang, opts)
+  if not parser then
+    vim.notify_once(
+      'WARNING: vim.treesitter.get_parser will return nil instead of raising an error in Neovim 0.12',
+      vim.log.levels.WARN
+    )
+    error('Parser not found.')
+  end
+  return parser
+end
+
 --- Returns a string parser
 ---
 ---@param str string Text to parse
@@ -386,7 +405,7 @@ function M.get_node(opts)
 
   local ts_range = { row, col, row, col }
 
-  local root_lang_tree = M.get_parser(bufnr, opts.lang)
+  local root_lang_tree = M._get_parser(bufnr, opts.lang)
   if not root_lang_tree then
     return
   end
@@ -419,7 +438,11 @@ end
 ---@param lang (string|nil) Language of the parser (default: from buffer filetype)
 function M.start(bufnr, lang)
   bufnr = bufnr or api.nvim_get_current_buf()
-  local parser = M.get_parser(bufnr, lang)
+  local parser = M._get_parser(bufnr, lang)
+  if not parser then
+    vim.notify('No parser for the given buffer.', vim.log.levels.WARN)
+    return
+  end
   M.highlighter.new(parser)
 end
 

runtime/lua/vim/treesitter/_fold.lua

@@ -114,7 +114,7 @@ local function compute_folds_levels(bufnr, info, srow, erow, parse_injections)
   srow = srow or 0
   erow = erow or api.nvim_buf_line_count(bufnr)
 
-  local parser = ts.get_parser(bufnr)
+  local parser = assert(ts._get_parser(bufnr))
 
   parser:parse(parse_injections and { srow, erow } or nil)
 
@@ -392,7 +392,7 @@ function M.foldexpr(lnum)
   lnum = lnum or vim.v.lnum
   local bufnr = api.nvim_get_current_buf()
 
-  local parser = vim.F.npcall(ts.get_parser, bufnr)
+  local parser = ts._get_parser(bufnr)
   if not parser then
     return '0'
   end

runtime/lua/vim/treesitter/_query_linter.lua

@@ -172,7 +172,7 @@ function M.lint(buf, opts)
     --- @type (table|nil)
     local parser_info = vim.F.npcall(vim.treesitter.language.inspect, lang)
 
-    local parser = vim.treesitter.get_parser(buf)
+    local parser = assert(vim.treesitter._get_parser(buf), 'query parser not found.')
     parser:parse()
     parser:for_each_tree(function(tree, ltree)
       if ltree:lang() == 'query' then

runtime/lua/vim/treesitter/dev.lua

@@ -76,10 +76,9 @@ end
 ---
 ---@package
 function TSTreeView:new(bufnr, lang)
-  local ok, parser = pcall(vim.treesitter.get_parser, bufnr or 0, lang)
-  if not ok then
-    local err = parser --[[ @as string ]]
-    return nil, 'No parser available for the given buffer:\n' .. err
+  local parser = vim.treesitter._get_parser(bufnr or 0, lang)
+  if not parser then
+    return nil, 'No parser available for the given buffer.'
   end
 
   -- For each child tree (injected language), find the root of the tree and locate the node within
@@ -539,7 +538,7 @@ local edit_ns = api.nvim_create_namespace('treesitter/dev-edit')
 local function update_editor_highlights(query_win, base_win, lang)
   local base_buf = api.nvim_win_get_buf(base_win)
   local query_buf = api.nvim_win_get_buf(query_win)
-  local parser = vim.treesitter.get_parser(base_buf, lang)
+  local parser = assert(vim.treesitter._get_parser(base_buf, lang))
   api.nvim_buf_clear_namespace(base_buf, edit_ns, 0, -1)
   local query_content = table.concat(api.nvim_buf_get_lines(query_buf, 0, -1, false), '\n')
 
@@ -596,8 +595,8 @@ function M.edit_query(lang)
   end
   vim.cmd(cmd)
 
-  local ok, parser = pcall(vim.treesitter.get_parser, buf, lang)
-  if not ok then
+  local parser = vim.treesitter._get_parser(buf, lang)
+  if not parser then
     return nil, 'No parser available for the given buffer'
   end
   lang = parser:lang()

runtime/lua/vim/ui.lua

@@ -117,6 +117,8 @@ end
 --- -- Asynchronous.
 --- vim.ui.open("https://neovim.io/")
 --- vim.ui.open("~/path/to/file")
+--- -- Use the "osurl" command to handle the path or URL.
+--- vim.ui.open("gh#neovim/neovim!29490", { cmd = { 'osurl' } })
 --- -- Synchronous (wait until the process exits).
 --- local cmd, err = vim.ui.open("$VIMRUNTIME")
 --- if cmd then
@@ -125,23 +127,26 @@ end
 --- ```
 ---
 ---@param path? string Path or URL to open, or `nil` to get path or URL at cursor.
+---@param opt? { cmd?: string[] } Options
+---     - cmd string[]|nil Command used to open the path or URL.
 ---
 ---@return vim.SystemObj|nil # Command object, or nil if not found.
 ---@return nil|string # Error message on failure, or nil on success.
 ---
 ---@see |vim.system()|
-function M.open(path)
+function M.open(path, opt)
   vim.validate({
     path = { path, 'string', true },
   })
 
+  opt = opt or {}
   local function do_open(uri)
-    local cmd --- @type string[]
-    local opts --- @type vim.SystemOpts
+    local cmd ---@type string[]
+    local job_opt = { text = true, detach = true } --- @type vim.SystemOpts
 
-    opts = { text = true, detach = true }
-
-    if vim.fn.has('mac') == 1 then
+    if opt.cmd then
+      cmd = vim.list_extend(opt.cmd --[[@as string[] ]], { uri })
+    elseif vim.fn.has('mac') == 1 then
       cmd = { 'open', uri }
     elseif vim.fn.has('win32') == 1 then
       if vim.fn.executable('rundll32') == 1 then
@@ -149,19 +154,19 @@ function M.open(path)
       else
         return nil, 'vim.ui.open: rundll32 not found'
       end
+    elseif vim.fn.executable('xdg-open') == 1 then
+      cmd = { 'xdg-open', uri }
+      job_opt.stdout = false
+      job_opt.stderr = false
     elseif vim.fn.executable('wslview') == 1 then
       cmd = { 'wslview', uri }
     elseif vim.fn.executable('explorer.exe') == 1 then
       cmd = { 'explorer.exe', uri }
-    elseif vim.fn.executable('xdg-open') == 1 then
-      cmd = { 'xdg-open', uri }
-      opts.stdout = false
-      opts.stderr = false
     else
       return nil, 'vim.ui.open: no handler found (tried: wslview, explorer.exe, xdg-open)'
     end
 
-    return vim.system(cmd, opts), nil
+    return vim.system(cmd, job_opt), nil
   end
 
   local function do_open2(uri)

runtime/lua/vim/vimhelp.lua

@@ -33,7 +33,7 @@ end
 --- Show a table of contents for the help buffer in a loclist
 function M.show_toc()
   local bufnr = vim.api.nvim_get_current_buf()
-  local parser = vim.treesitter.get_parser(bufnr, 'vimdoc')
+  local parser = assert(vim.treesitter._get_parser(bufnr, 'vimdoc'), 'vimdoc parser not found.')
   local query = vim.treesitter.query.parse(
     parser:lang(),
     [[

runtime/queries/markdown_inline/highlights.scm

@@ -45,6 +45,11 @@
   (link_destination) @_url
   (#set! @_label url @_url))
 
+(image
+  (image_description) @_label
+  (link_destination) @_url
+  (#set! @_label url @_url))
+
 ; Conceal image links
 (image
   [

runtime/queries/query/highlights.scm

@@ -33,7 +33,10 @@
   ")"
 ] @punctuation.bracket
 
-":" @punctuation.delimiter
+[
+  ":"
+  "/"
+] @punctuation.delimiter
 
 [
   "@"

runtime/syntax/dosini.vim

@@ -1,12 +1,12 @@
 " Vim syntax file
 " Language:               Configuration File (ini file) for MSDOS/MS Windows
-" Version:                2.3
+" Version:                2.4
 " Original Author:        Sean M. McKee <mckee@misslink.net>
 " Previous Maintainer:    Nima Talebi <nima@it.net.au>
 " Current Maintainer:     Hong Xu <hong@topbug.net>
 " Homepage:               http://www.vim.org/scripts/script.php?script_id=3747
 " Repository:             https://github.com/xuhdev/syntax-dosini.vim
-" Last Change:            2023 Aug 20
+" Last Change:            2024 Sept 08
 
 
 " quit when a syntax file was already loaded
@@ -27,7 +27,7 @@ syn match  dosiniNumber   "=\zs\s*\d\+\s*$"
 syn match  dosiniNumber   "=\zs\s*\d*\.\d\+\s*$"
 syn match  dosiniNumber   "=\zs\s*\d\+e[+-]\=\d\+\s*$"
 syn region dosiniHeader   start="^\s*\[" end="\]"
-syn match  dosiniComment  "^[#;].*$"
+syn match  dosiniComment  "^[#;].*$" contains=@Spell
 syn region dosiniSection  start="\s*\[.*\]" end="\ze\s*\[.*\]" fold
       \ contains=dosiniLabel,dosiniValue,dosiniNumber,dosiniHeader,dosiniComment
 

runtime/syntax/idlang.vim

@@ -1,7 +1,8 @@
 " Interactive Data Language syntax file (IDL, too  [:-)]
 " Maintainer: Aleksandar Jelenak <ajelenak AT yahoo.com>
-" Last change: 2011 Apr 11
-" Created by: Hermann Rochholz <Hermann.Rochholz AT gmx.de>
+" Created By: Hermann Rochholz <Hermann.Rochholz AT gmx.de>
+" Last Change: 2011 Apr 11
+"  2024 Sep 10 by Vim Project: update syntax script, #15419
 
 " Remove any old syntax stuff hanging around
 " quit when a syntax file was already loaded
@@ -16,7 +17,7 @@ syn match idlangStatement "^\s*function\s"
 syn keyword idlangStatement return continue mod do break
 syn keyword idlangStatement compile_opt forward_function goto
 syn keyword idlangStatement begin common end of
-syn keyword idlangStatement inherits on_ioerror begin
+syn keyword idlangStatement inherits on_error on_ioerror begin
 
 syn keyword idlangConditional if else then for while case switch
 syn keyword idlangConditional endcase endelse endfor endswitch
@@ -82,7 +83,7 @@ syn keyword idlangRoutine CALL_EXTERNAL CALL_FUNCTION CALL_METHOD
 syn keyword idlangRoutine CALL_PROCEDURE CATCH CD CEIL CHEBYSHEV CHECK_MATH
 syn keyword idlangRoutine CHISQR_CVF CHISQR_PDF CHOLDC CHOLSOL CINDGEN
 syn keyword idlangRoutine CIR_3PNT CLOSE CLUST_WTS CLUSTER COLOR_CONVERT
-syn keyword idlangRoutine COLOR_QUAN COLORMAP_APPLICABLE COMFIT COMMON
+syn keyword idlangRoutine COLOR_QUAN COLORMAP_APPLICABLE COMFIT
 syn keyword idlangRoutine COMPLEX COMPLEXARR COMPLEXROUND
 syn keyword idlangRoutine COMPUTE_MESH_NORMALS COND CONGRID CONJ
 syn keyword idlangRoutine CONSTRAINED_MIN CONTOUR CONVERT_COORD CONVOL
@@ -98,7 +99,7 @@ syn keyword idlangRoutine CW_PALETTE_EDITOR_GET CW_PALETTE_EDITOR_SET
 syn keyword idlangRoutine CW_PDMENU CW_RGBSLIDER CW_TMPL CW_ZOOM DBLARR
 syn keyword idlangRoutine DCINDGEN DCOMPLEX DCOMPLEXARR DEFINE_KEY DEFROI
 syn keyword idlangRoutine DEFSYSV DELETE_SYMBOL DELLOG DELVAR DERIV DERIVSIG
-syn keyword idlangRoutine DETERM DEVICE DFPMIN DIALOG_MESSAGE
+syn keyword idlangRoutine DETERM DEVICE DFPMIN DIAG_MATRIX DIALOG_MESSAGE
 syn keyword idlangRoutine DIALOG_PICKFILE DIALOG_PRINTERSETUP
 syn keyword idlangRoutine DIALOG_PRINTJOB DIALOG_READ_IMAGE
 syn keyword idlangRoutine DIALOG_WRITE_IMAGE DIGITAL_FILTER DILATE DINDGEN
@@ -155,7 +156,7 @@ syn keyword idlangRoutine MPEG_PUT MPEG_SAVE MSG_CAT_CLOSE MSG_CAT_COMPILE
 syn keyword idlangRoutine MSG_CAT_OPEN MULTI N_ELEMENTS N_PARAMS N_TAGS
 syn keyword idlangRoutine NEWTON NORM OBJ_CLASS OBJ_DESTROY OBJ_ISA OBJ_NEW
 syn keyword idlangRoutine OBJ_VALID OBJARR ON_ERROR ON_IOERROR ONLINE_HELP
-syn keyword idlangRoutine OPEN OPENR OPENW OPLOT OPLOTERR P_CORRELATE
+syn keyword idlangRoutine OPEN OPENR OPENW OPENU OPLOT OPLOTERR P_CORRELATE
 syn keyword idlangRoutine PARTICLE_TRACE PCOMP PLOT PLOT_3DBOX PLOT_FIELD
 syn keyword idlangRoutine PLOTERR PLOTS PNT_LINE POINT_LUN POLAR_CONTOUR
 syn keyword idlangRoutine POLAR_SURFACE POLY POLY_2D POLY_AREA POLY_FIT

runtime/syntax/java.vim

@@ -3,7 +3,7 @@
 " Maintainer:		Aliaksei Budavei <0x000c70 AT gmail DOT com>
 " Former Maintainer:	Claudio Fleiner <claudio@fleiner.com>
 " Repository:		https://github.com/zzzyxwvut/java-vim.git
-" Last Change:		2024 Aug 26
+" Last Change:		2024 Sep 11
 
 " Please check :help java.vim for comments on some of the options available.
 
@@ -157,13 +157,20 @@ endif
 " testing in a project without attendant confusion for IDEs, with the
 " ".java\=" extension used for a production version and an arbitrary
 " extension used for a testing version.
-if fnamemodify(bufname("%"), ":t") =~ '^module-info\%(\.class\>\)\@!'
+if fnamemodify(bufname("%"), ":t") =~ '^module-info\>\%(\.class\>\)\@!'
   syn keyword javaModuleStorageClass	module transitive
   syn keyword javaModuleStmt		open requires exports opens uses provides
   syn keyword javaModuleExternal	to with
   hi def link javaModuleStorageClass	StorageClass
   hi def link javaModuleStmt		Statement
   hi def link javaModuleExternal	Include
+
+  if !exists("g:java_ignore_javadoc") && g:main_syntax != 'jsp'
+    syn match javaDocProvidesTag	contained "@provides\_s\+\S\+" contains=javaDocParam
+    syn match javaDocUsesTag		contained "@uses\_s\+\S\+" contains=javaDocParam
+    hi def link javaDocProvidesTag	Special
+    hi def link javaDocUsesTag		Special
+  endif
 endif
 
 " Fancy parameterised types (JLS-17, §4.5).
@@ -335,29 +342,99 @@ if !exists("g:java_ignore_javadoc") && g:main_syntax != 'jsp'
     call s:ReportOnce(v:exception)
   endtry
 
-  syn region javaDocComment	start="/\*\*" end="\*/" keepend contains=javaCommentTitle,@javaHtml,javaDocTags,javaDocSeeTag,javaDocCodeTag,javaDocSnippetTag,javaTodo,javaCommentError,javaSpaceError,@Spell fold
-  exec 'syn region javaCommentTitle contained matchgroup=javaDocComment start="/\*\*" matchgroup=javaCommentTitle end="\.$" end="\.[ \t\r]\@=" end="\%(^\s*\**\s*\)\@' . s:ff.Peek('80', '') . '<=@"me=s-2,he=s-1 end="\*/"me=s-1,he=s-1 contains=@javaHtml,javaCommentStar,javaTodo,javaCommentError,javaSpaceError,@Spell,javaDocTags,javaDocSeeTag,javaDocCodeTag,javaDocSnippetTag'
-  syn region javaCommentTitle	contained matchgroup=javaDocComment start="/\*\*\s*\r\=\n\=\s*\**\s*\%({@return\>\)\@=" matchgroup=javaCommentTitle end="}\%(\s*\.*\)*" contains=@javaHtml,javaCommentStar,javaTodo,javaCommentError,javaSpaceError,@Spell,javaDocTags,javaDocSeeTag,javaDocCodeTag,javaDocSnippetTag
-  syn region javaDocTags	contained start="{@\%(li\%(teral\|nk\%(plain\)\=\)\|inherit[Dd]oc\|doc[rR]oot\|value\)\>" end="}"
-  syn match  javaDocTags	contained "@\%(param\|exception\|throws\|since\)\s\+\S\+" contains=javaDocParam
-  syn match  javaDocParam	contained "\s\S\+"
-  syn match  javaDocTags	contained "@\%(version\|author\|return\|deprecated\|serial\%(Field\|Data\)\=\)\>"
-  syn region javaDocSeeTag	contained matchgroup=javaDocTags start="@see\s\+" matchgroup=NONE end="\_."re=e-1 contains=javaDocSeeTagParam
-  syn match  javaDocSeeTagParam	contained @"\_[^"]\+"\|<a\s\+\_.\{-}</a>\|\%(\k\|\.\)*\%(#\k\+\%((\_[^)]*)\)\=\)\=@ contains=@javaHtml extend
+  syn region javaDocComment	start="/\*\*" end="\*/" keepend contains=javaCommentTitle,@javaHtml,@javaDocTags,javaTodo,javaCommentError,javaSpaceError,@Spell fold
+  exec 'syn region javaCommentTitle contained matchgroup=javaDocComment start="/\*\*" matchgroup=javaCommentTitle end="\.$" end="\.[ \t\r]\@=" end="\%(^\s*\**\s*\)\@' . s:ff.Peek('80', '') . '<=@"me=s-2,he=s-1 end="\*/"me=s-1,he=s-1 contains=@javaHtml,javaCommentStar,javaTodo,javaCommentError,javaSpaceError,@Spell,@javaDocTags'
+  syn region javaCommentTitle	contained matchgroup=javaDocComment start="/\*\*\s*\r\=\n\=\s*\**\s*\%({@return\>\)\@=" matchgroup=javaCommentTitle end="}\%(\s*\.*\)*" contains=@javaHtml,javaCommentStar,javaTodo,javaCommentError,javaSpaceError,@Spell,@javaDocTags,javaTitleSkipBlock
+  syn region javaCommentTitle	contained matchgroup=javaDocComment start="/\*\*\s*\r\=\n\=\s*\**\s*\%({@summary\>\)\@=" matchgroup=javaCommentTitle end="}" contains=@javaHtml,javaCommentStar,javaTodo,javaCommentError,javaSpaceError,@Spell,@javaDocTags,javaTitleSkipBlock
+  " The members of javaDocTags are sub-grouped according to the Java
+  " version of their introduction, and sub-group members in turn are
+  " arranged in alphabetical order, so that future newer members can
+  " be pre-sorted and appended without disturbing the current member
+  " placement.
+  " Since they only have significance in javaCommentTitle, neither
+  " javaDocSummaryTag nor javaDocReturnTitleTag are defined.
+  syn cluster javaDocTags	contains=javaDocAuthorTag,javaDocDeprecatedTag,javaDocExceptionTag,javaDocParamTag,javaDocReturnTag,javaDocSeeTag,javaDocVersionTag,javaDocSinceTag,javaDocLinkTag,javaDocSerialTag,javaDocSerialDataTag,javaDocSerialFieldTag,javaDocThrowsTag,javaDocDocRootTag,javaDocInheritDocTag,javaDocLinkplainTag,javaDocValueTag,javaDocCodeTag,javaDocLiteralTag,javaDocHiddenTag,javaDocIndexTag,javaDocProvidesTag,javaDocUsesTag,javaDocSystemPropertyTag,javaDocSnippetTag,javaDocSpecTag
+
+  " Anticipate non-standard inline tags in {@return} and {@summary}.
+  syn region javaTitleSkipBlock	contained transparent start="{\%(@\%(return\|summary\)\>\)\@!" end="}"
+  syn match  javaDocDocRootTag	contained "{@docRoot}"
+  syn match  javaDocInheritDocTag contained "{@inheritDoc}"
+  syn region javaIndexSkipBlock	contained transparent start="{\%(@index\>\)\@!" end="}" contains=javaIndexSkipBlock,javaDocIndexTag
+  syn region javaDocIndexTag	contained start="{@index\>" end="}" contains=javaDocIndexTag,javaIndexSkipBlock
+  syn region javaLinkSkipBlock	contained transparent start="{\%(@link\>\)\@!" end="}" contains=javaLinkSkipBlock,javaDocLinkTag
+  syn region javaDocLinkTag	contained start="{@link\>" end="}" contains=javaDocLinkTag,javaLinkSkipBlock
+  syn region javaLinkplainSkipBlock contained transparent start="{\%(@linkplain\>\)\@!" end="}" contains=javaLinkplainSkipBlock,javaDocLinkplainTag
+  syn region javaDocLinkplainTag contained start="{@linkplain\>" end="}" contains=javaDocLinkplainTag,javaLinkplainSkipBlock
+  syn region javaLiteralSkipBlock contained transparent start="{\%(@literal\>\)\@!" end="}" contains=javaLiteralSkipBlock,javaDocLiteralTag
+  syn region javaDocLiteralTag	contained start="{@literal\>" end="}" contains=javaDocLiteralTag,javaLiteralSkipBlock
+  syn region javaSystemPropertySkipBlock contained transparent start="{\%(@systemProperty\>\)\@!" end="}" contains=javaSystemPropertySkipBlock,javaDocSystemPropertyTag
+  syn region javaDocSystemPropertyTag contained start="{@systemProperty\>" end="}" contains=javaDocSystemPropertyTag,javaSystemPropertySkipBlock
+  syn region javaValueSkipBlock	contained transparent start="{\%(@value\>\)\@!" end="}" contains=javaValueSkipBlock,javaDocValueTag
+  syn region javaDocValueTag	contained start="{@value\>" end="}" contains=javaDocValueTag,javaValueSkipBlock
+
+  syn match  javaDocParam	contained "\s\zs\S\+"
+  syn match  javaDocExceptionTag contained "@exception\s\+\S\+" contains=javaDocParam
+  syn match  javaDocParamTag	contained "@param\s\+\S\+" contains=javaDocParam
+  syn match  javaDocSinceTag	contained "@since\s\+\S\+" contains=javaDocParam
+  syn match  javaDocThrowsTag	contained "@throws\s\+\S\+" contains=javaDocParam
+  syn match  javaDocSpecTag	contained "@spec\_s\+\S\+\ze\_s\+\S\+" contains=javaDocParam
+
+  syn match  javaDocAuthorTag	contained "@author\>"
+  syn match  javaDocDeprecatedTag contained "@deprecated\>"
+  syn match  javaDocHiddenTag	contained "@hidden\>"
+  syn match  javaDocReturnTag	contained "@return\>"
+  syn match  javaDocSerialTag	contained "@serial\>"
+  syn match  javaDocSerialDataTag contained "@serialData\>"
+  syn match  javaDocSerialFieldTag contained "@serialField\>"
+  syn match  javaDocVersionTag	contained "@version\>"
+
+  syn match  javaDocSeeTag	contained "@see\>" nextgroup=javaDocSeeTag1,javaDocSeeTag2,javaDocSeeTag3,javaDocSeeTagStar skipwhite skipempty
+  syn match  javaDocSeeTagStar	contained "^\s*\*\+\%(\s*{\=@\|/\|$\)\@!" nextgroup=javaDocSeeTag1,javaDocSeeTag2,javaDocSeeTag3 skipwhite skipempty
+  syn match  javaDocSeeTag1	contained @"\_[^"]\+"@
+  syn match  javaDocSeeTag2	contained @<a\s\+\_.\{-}</a>@ contains=@javaHtml extend
+  syn match  javaDocSeeTag3	contained @["< \t]\@!\%(\k\|[/.]\)*\%(##\=\k\+\%((\_[^)]*)\)\=\)\=@ nextgroup=javaDocSeeTag3Label skipwhite skipempty
+  syn match  javaDocSeeTag3Label contained @\k\%(\k\+\s*\)*$@
+
   syn region javaCodeSkipBlock	contained transparent start="{\%(@code\>\)\@!" end="}" contains=javaCodeSkipBlock,javaDocCodeTag
   syn region javaDocCodeTag	contained start="{@code\>" end="}" contains=javaDocCodeTag,javaCodeSkipBlock
+
   exec 'syn region javaDocSnippetTagAttr contained transparent matchgroup=javaHtmlArg start=/\<\%(class\|file\|id\|lang\|region\)\%(\s*=\)\@=/ matchgroup=javaHtmlString end=/:$/ end=/\%(=\s*\)\@' . s:ff.Peek('80', '') . '<=\%("[^"]\+"\|' . "\x27[^\x27]\\+\x27" . '\|\%([.\\/-]\|\k\)\+\)/ nextgroup=javaDocSnippetTagAttr skipwhite skipnl'
   syn region javaSnippetSkipBlock contained transparent start="{\%(@snippet\>\)\@!" end="}" contains=javaSnippetSkipBlock,javaDocSnippetTag,javaCommentMarkupTag
   syn region javaDocSnippetTag	contained start="{@snippet\>" end="}" contains=javaDocSnippetTag,javaSnippetSkipBlock,javaDocSnippetTagAttr,javaCommentMarkupTag
 
   syntax case match
   hi def link javaDocComment		Comment
+  hi def link javaDocSeeTagStar		javaDocComment
   hi def link javaCommentTitle		SpecialComment
-  hi def link javaDocTags		Special
-  hi def link javaDocCodeTag		Special
-  hi def link javaDocSnippetTag		Special
-  hi def link javaDocSeeTagParam	Function
   hi def link javaDocParam		Function
+
+  hi def link javaDocAuthorTag		Special
+  hi def link javaDocCodeTag		Special
+  hi def link javaDocDeprecatedTag	Special
+  hi def link javaDocDocRootTag		Special
+  hi def link javaDocExceptionTag	Special
+  hi def link javaDocHiddenTag		Special
+  hi def link javaDocIndexTag		Special
+  hi def link javaDocInheritDocTag	Special
+  hi def link javaDocLinkTag		Special
+  hi def link javaDocLinkplainTag	Special
+  hi def link javaDocLiteralTag		Special
+  hi def link javaDocParamTag		Special
+  hi def link javaDocReturnTag		Special
+  hi def link javaDocSeeTag		Special
+  hi def link javaDocSeeTag1		String
+  hi def link javaDocSeeTag2		Special
+  hi def link javaDocSeeTag3		Function
+  hi def link javaDocSerialTag		Special
+  hi def link javaDocSerialDataTag	Special
+  hi def link javaDocSerialFieldTag	Special
+  hi def link javaDocSinceTag		Special
+  hi def link javaDocSnippetTag		Special
+  hi def link javaDocSpecTag		Special
+  hi def link javaDocSystemPropertyTag	Special
+  hi def link javaDocThrowsTag		Special
+  hi def link javaDocValueTag		Special
+  hi def link javaDocVersionTag		Special
 endif
 
 " match the special comment /**/
@@ -586,7 +663,7 @@ hi def link javaStorageClass		StorageClass
 hi def link javaMethodDecl		javaStorageClass
 hi def link javaClassDecl		javaStorageClass
 hi def link javaScopeDecl		javaStorageClass
-hi def link javaConceptKind		NonText
+hi def link javaConceptKind		javaStorageClass
 
 hi def link javaBoolean			Boolean
 hi def link javaSpecial			Special

runtime/syntax/spec.vim

@@ -4,6 +4,7 @@
 " Maintainer:  Igor Gnatenko i.gnatenko.brain@gmail.com
 " Former Maintainer:  Donovan Rebbechi elflord@panix.com (until March 2014)
 " Last Change: 2020 May 25
+"  2024 Sep 10 by Vim Project: add file triggers support, #15569
 
 " quit when a syntax file was already loaded
 if exists("b:current_syntax")
@@ -111,7 +112,7 @@ syn region specDescriptionArea matchgroup=specSection start='^%description' end=
 syn region specPackageArea matchgroup=specSection start='^%package' end='^%'me=e-1 contains=specPackageOpts,specPreAmble,specComment
 
 "%% Scripts Section %%
-syn region specScriptArea matchgroup=specSection start='^%\(prep\|generate_buildrequires\|conf\|build\|install\|clean\|check\|pre\|postun\|preun\|post\|posttrans\)\>' skip='^%{\|^%\(define\|patch\d*\|configure\|GNUconfigure\|setup\|autosetup\|autopatch\|find_lang\|make_build\|makeinstall\|make_install\)\>' end='^%'me=e-1 contains=specSpecialVariables,specVariables,@specCommands,specVariables,shDo,shFor,shCaseEsac,specNoNumberHilite,specCommandOpts,shComment,shIf,specSpecialChar,specMacroIdentifier,specSectionMacroArea,specSectionMacroBracketArea,shOperator,shQuote1,shQuote2
+syn region specScriptArea matchgroup=specSection start='^%\(prep\|generate_buildrequires\|conf\|build\|install\|clean\|check\|pre\|postun\|preun\|post\|posttrans\|filetriggerin\|filetriggerun\|filetriggerpostun\|transfiletriggerin\|transfiletriggerun\|transfiletriggerpostun\)\>' skip='^%{\|^%\(define\|patch\d*\|configure\|GNUconfigure\|setup\|autosetup\|autopatch\|find_lang\|make_build\|makeinstall\|make_install\)\>' end='^%'me=e-1 contains=specSpecialVariables,specVariables,@specCommands,specVariables,shDo,shFor,shCaseEsac,specNoNumberHilite,specCommandOpts,shComment,shIf,specSpecialChar,specMacroIdentifier,specSectionMacroArea,specSectionMacroBracketArea,shOperator,shQuote1,shQuote2
 
 "%% Changelog Section %%
 syn region specChangelogArea matchgroup=specSection start='^%changelog' end='^%'me=e-1 contains=specEmail,specURL,specWeekday,specMonth,specNumber,specComment,specLicense

runtime/syntax/vim.vim

@@ -685,7 +685,7 @@ if !exists("g:vimsyn_noerror") && !exists("g:vimsyn_novimfunctionerror")
  syn match	vimBufnrWarn	/\<bufnr\s*(\s*["']\.['"]\s*)/
 endif
 
-syn match vimNotFunc	"\<if\>\|\<el\%[seif]\>\|\<retu\%[rn]\>\|\<while\>"	skipwhite nextgroup=vimOper,vimOperParen,vimVar,vimFunc,vimNotation
+syn match vimNotFunc	"\<if\>\|\<el\%[seif]\>\|\<retu\%[rn]\>\|\<while\>"	skipwhite nextgroup=@vimExprList,vimNotation
 
 " Match: {{{2
 " =====

scripts/bump_deps.lua

@@ -81,6 +81,14 @@ local function get_dependency(dependency_name)
       repo = 'luvit/luv',
       symbol = 'LUV',
     },
+    ['unibilium'] = {
+      repo = 'neovim/unibilium',
+      symbol = 'UNIBILIUM',
+    },
+    ['utf8proc'] = {
+      repo = 'JuliaStrings/utf8proc',
+      symbol = 'UTF8PROC',
+    },
     ['tree-sitter'] = {
       repo = 'tree-sitter/tree-sitter',
       symbol = 'TREESITTER',
@@ -90,11 +98,11 @@ local function get_dependency(dependency_name)
       symbol = 'TREESITTER_C',
     },
     ['tree-sitter-lua'] = {
-      repo = 'MunifTanjim/tree-sitter-lua',
+      repo = 'tree-sitter-grammars/tree-sitter-lua',
       symbol = 'TREESITTER_LUA',
     },
     ['tree-sitter-vim'] = {
-      repo = 'neovim/tree-sitter-vim',
+      repo = 'tree-sitter-grammars/tree-sitter-vim',
       symbol = 'TREESITTER_VIM',
     },
     ['tree-sitter-vimdoc'] = {
@@ -102,9 +110,21 @@ local function get_dependency(dependency_name)
       symbol = 'TREESITTER_VIMDOC',
     },
     ['tree-sitter-query'] = {
-      repo = 'nvim-treesitter/tree-sitter-query',
+      repo = 'tree-sitter-grammars/tree-sitter-query',
       symbol = 'TREESITTER_QUERY',
     },
+    ['tree-sitter-markdown'] = {
+      repo = 'tree-sitter-grammars/tree-sitter-markdown',
+      symbol = 'TREESITTER_MARKDOWN',
+    },
+    ['wasmtime'] = {
+      repo = 'bytecodealliance/wasmtime',
+      symbol = 'WASMTIME',
+    },
+    ['uncrustify'] = {
+      repo = 'uncrustify/uncrustify',
+      symbol = 'UNCRUSTIFY',
+    },
   }
   local dependency = dependency_table[dependency_name]
   if dependency == nil then

scripts/gen_help_html.lua

@@ -786,7 +786,7 @@ local function parse_buf(fname, parser_path)
   if parser_path then
     vim.treesitter.language.add('vimdoc', { path = parser_path })
   end
-  local lang_tree = vim.treesitter.get_parser(buf)
+  local lang_tree = assert(vim.treesitter._get_parser(buf), 'vimdoc parser not found.')
   return lang_tree, buf
 end
 

src/.valgrind.supp

@@ -10,7 +10,7 @@
   Memcheck:Leak
   fun:malloc
   fun:uv_spawn
-  fun:libuv_process_spawn
-  fun:process_spawn
+  fun:libuv_proc_spawn
+  fun:proc_spawn
   fun:job_start
 }

src/clint.py

@@ -848,7 +848,7 @@ def CheckIncludes(filename, lines, error):
             or filename.endswith('.in.h')
             or FileInfo(filename).RelativePath() in {
         'func_attr.h',
-        'os/pty_process.h',
+        'os/pty_proc.h',
     }):
         return
 
@@ -869,7 +869,7 @@ def CheckIncludes(filename, lines, error):
             "src/nvim/msgpack_rpc/unpacker.h",
             "src/nvim/option.h",
             "src/nvim/os/pty_conpty_win.h",
-            "src/nvim/os/pty_process_win.h",
+            "src/nvim/os/pty_proc_win.h",
                              ]
 
     skip_headers = [

src/nvim/CMakeLists.txt

@@ -417,10 +417,10 @@ list(SORT NVIM_HEADERS)
 
 foreach(sfile ${NVIM_SOURCES})
   get_filename_component(f ${sfile} NAME)
-  if(WIN32 AND ${f} MATCHES "^(pty_process_unix.c)$")
+  if(WIN32 AND ${f} MATCHES "^(pty_proc_unix.c)$")
     list(REMOVE_ITEM NVIM_SOURCES ${sfile})
   endif()
-  if(NOT WIN32 AND ${f} MATCHES "^(pty_process_win.c)$")
+  if(NOT WIN32 AND ${f} MATCHES "^(pty_proc_win.c)$")
     list(REMOVE_ITEM NVIM_SOURCES ${sfile})
   endif()
   if(NOT WIN32 AND ${f} MATCHES "^(pty_conpty_win.c)$")
@@ -436,7 +436,7 @@ foreach(hfile ${NVIM_HEADERS})
   if(WIN32 AND ${f} MATCHES "^(unix_defs.h)$")
     list(REMOVE_ITEM NVIM_HEADERS ${hfile})
   endif()
-  if(WIN32 AND ${f} MATCHES "^(pty_process_unix.h)$")
+  if(WIN32 AND ${f} MATCHES "^(pty_proc_unix.h)$")
     list(REMOVE_ITEM NVIM_HEADERS ${hfile})
   endif()
   if(NOT WIN32 AND ${f} MATCHES "^(win_defs.h)$")
@@ -832,12 +832,12 @@ find_program(CLANG_TIDY_PRG clang-tidy)
 set(EXCLUDE_CLANG_TIDY typval_encode.c.h ui_events.in.h)
 if(WIN32)
   list(APPEND EXCLUDE_CLANG_TIDY
-    os/pty_process_unix.h
+    os/pty_proc_unix.h
     os/unix_defs.h)
 else()
   list(APPEND EXCLUDE_CLANG_TIDY
     os/win_defs.h
-    os/pty_process_win.h
+    os/pty_proc_win.h
     os/pty_conpty_win.h
     os/os_win_console.h)
 endif()

src/nvim/api/vim.c

@@ -70,7 +70,7 @@
 #include "nvim/optionstr.h"
 #include "nvim/os/input.h"
 #include "nvim/os/os_defs.h"
-#include "nvim/os/process.h"
+#include "nvim/os/proc.h"
 #include "nvim/popupmenu.h"
 #include "nvim/pos_defs.h"
 #include "nvim/runtime.h"

src/nvim/buffer.c

@@ -3338,7 +3338,7 @@ void maketitle(void)
 
 #define SPACE_FOR_FNAME (sizeof(buf) - 100)
 #define SPACE_FOR_DIR   (sizeof(buf) - 20)
-#define SPACE_FOR_ARGNR (sizeof(buf) - 10)  // At least room for " - NVIM".
+#define SPACE_FOR_ARGNR (sizeof(buf) - 10)  // At least room for " - Nvim".
       char *buf_p = buf;
       if (curbuf->b_fname == NULL) {
         const size_t size = xstrlcpy(buf_p, _("[No Name]"),
@@ -3412,7 +3412,7 @@ void maketitle(void)
 
       append_arg_number(curwin, buf_p, (int)(SPACE_FOR_ARGNR - (size_t)(buf_p - buf)));
 
-      xstrlcat(buf_p, " - NVIM", (sizeof(buf) - (size_t)(buf_p - buf)));
+      xstrlcat(buf_p, " - Nvim", (sizeof(buf) - (size_t)(buf_p - buf)));
 
       if (maxlen > 0) {
         // Make it shorter by removing a bit in the middle.

src/nvim/channel.c

@@ -19,7 +19,7 @@
 #include "nvim/eval/typval.h"
 #include "nvim/event/loop.h"
 #include "nvim/event/multiqueue.h"
-#include "nvim/event/process.h"
+#include "nvim/event/proc.h"
 #include "nvim/event/rstream.h"
 #include "nvim/event/socket.h"
 #include "nvim/event/stream.h"
@@ -88,7 +88,7 @@ void channel_free_all_mem(void)
 bool channel_close(uint64_t id, ChannelPart part, const char **error)
 {
   Channel *chan;
-  Process *proc;
+  Proc *proc;
 
   const char *dummy;
   if (!error) {
@@ -139,8 +139,8 @@ bool channel_close(uint64_t id, ChannelPart part, const char **error)
     if (part == kChannelPartStderr || part == kChannelPartAll) {
       rstream_may_close(&proc->err);
     }
-    if (proc->type == kProcessTypePty && part == kChannelPartAll) {
-      pty_process_close_master(&chan->stream.pty);
+    if (proc->type == kProcTypePty && part == kChannelPartAll) {
+      pty_proc_close_master(&chan->stream.pty);
     }
 
     break;
@@ -289,7 +289,7 @@ static void channel_destroy(Channel *chan)
   }
 
   if (chan->streamtype == kChannelStreamProc) {
-    process_free(&chan->stream.proc);
+    proc_free(&chan->stream.proc);
   }
 
   callback_reader_free(&chan->on_data);
@@ -376,7 +376,7 @@ Channel *channel_job_start(char **argv, const char *exepath, CallbackReader on_s
       *status_out = 0;
       return NULL;
     }
-    chan->stream.pty = pty_process_init(&main_loop, chan);
+    chan->stream.pty = pty_proc_init(&main_loop, chan);
     if (pty_width > 0) {
       chan->stream.pty.width = pty_width;
     }
@@ -384,22 +384,22 @@ Channel *channel_job_start(char **argv, const char *exepath, CallbackReader on_s
       chan->stream.pty.height = pty_height;
     }
   } else {
-    chan->stream.uv = libuv_process_init(&main_loop, chan);
+    chan->stream.uv = libuv_proc_init(&main_loop, chan);
   }
 
-  Process *proc = &chan->stream.proc;
+  Proc *proc = &chan->stream.proc;
   proc->argv = argv;
   proc->exepath = exepath;
-  proc->cb = channel_process_exit_cb;
+  proc->cb = channel_proc_exit_cb;
   proc->events = chan->events;
   proc->detach = detach;
   proc->cwd = cwd;
   proc->env = env;
   proc->overlapped = overlapped;
 
-  char *cmd = xstrdup(process_get_exepath(proc));
+  char *cmd = xstrdup(proc_get_exepath(proc));
   bool has_out, has_err;
-  if (proc->type == kProcessTypePty) {
+  if (proc->type == kProcTypePty) {
     has_out = true;
     has_err = false;
   } else {
@@ -410,7 +410,7 @@ Channel *channel_job_start(char **argv, const char *exepath, CallbackReader on_s
 
   bool has_in = stdin_mode == kChannelStdinPipe;
 
-  int status = process_spawn(proc, has_in, has_out, has_err);
+  int status = proc_spawn(proc, has_in, has_out, has_err);
   if (status) {
     semsg(_(e_jobspawn), os_strerror(status), cmd);
     xfree(cmd);
@@ -760,7 +760,7 @@ void channel_reader_callbacks(Channel *chan, CallbackReader *reader)
   }
 }
 
-static void channel_process_exit_cb(Process *proc, int status, void *data)
+static void channel_proc_exit_cb(Proc *proc, int status, void *data)
 {
   Channel *chan = data;
   if (chan->term) {
@@ -847,7 +847,7 @@ static void term_write(const char *buf, size_t size, void *data)
 static void term_resize(uint16_t width, uint16_t height, void *data)
 {
   Channel *chan = data;
-  pty_process_resize(&chan->stream.pty, width, height);
+  pty_proc_resize(&chan->stream.pty, width, height);
 }
 
 static inline void term_delayed_free(void **argv)
@@ -867,7 +867,7 @@ static inline void term_delayed_free(void **argv)
 static void term_close(void *data)
 {
   Channel *chan = data;
-  process_stop(&chan->stream.proc);
+  proc_stop(&chan->stream.proc);
   multiqueue_put(chan->events, term_delayed_free, data);
 }
 
@@ -907,7 +907,7 @@ bool channel_job_running(uint64_t id)
   Channel *chan = find_channel(id);
   return (chan
           && chan->streamtype == kChannelStreamProc
-          && !process_is_stopped(&chan->stream.proc));
+          && !proc_is_stopped(&chan->stream.proc));
 }
 
 Dictionary channel_info(uint64_t id, Arena *arena)
@@ -924,8 +924,8 @@ Dictionary channel_info(uint64_t id, Arena *arena)
   switch (chan->streamtype) {
   case kChannelStreamProc: {
     stream_desc = "job";
-    if (chan->stream.proc.type == kProcessTypePty) {
-      const char *name = pty_process_tty_name(&chan->stream.pty);
+    if (chan->stream.proc.type == kProcTypePty) {
+      const char *name = pty_proc_tty_name(&chan->stream.pty);
       PUT_C(info, "pty", CSTR_TO_ARENA_OBJ(arena, name));
     }
 

src/nvim/channel.h

@@ -7,11 +7,11 @@
 #include "nvim/channel_defs.h"  // IWYU pragma: keep
 #include "nvim/eval/typval_defs.h"
 #include "nvim/event/defs.h"
-#include "nvim/event/libuv_process.h"
+#include "nvim/event/libuv_proc.h"
 #include "nvim/macros_defs.h"
 #include "nvim/map_defs.h"
 #include "nvim/msgpack_rpc/channel_defs.h"
-#include "nvim/os/pty_process.h"
+#include "nvim/os/pty_proc.h"
 #include "nvim/types_defs.h"
 
 struct Channel {
@@ -21,9 +21,9 @@ struct Channel {
 
   ChannelStreamType streamtype;
   union {
-    Process proc;
-    LibuvProcess uv;
-    PtyProcess pty;
+    Proc proc;
+    LibuvProc uv;
+    PtyProc pty;
     RStream socket;
     StdioPair stdio;
     StderrState err;

src/nvim/drawline.c

@@ -170,28 +170,26 @@ static void margin_columns_win(win_T *wp, int *left_col, int *right_col)
   // cache previous calculations depending on w_virtcol
   static int saved_w_virtcol;
   static win_T *prev_wp;
+  static int prev_width1;
+  static int prev_width2;
   static int prev_left_col;
   static int prev_right_col;
-  static int prev_col_off;
 
   int cur_col_off = win_col_off(wp);
-  int width1;
-  int width2;
+  int width1 = wp->w_width_inner - cur_col_off;
+  int width2 = width1 + win_col_off2(wp);
 
   if (saved_w_virtcol == wp->w_virtcol && prev_wp == wp
-      && prev_col_off == cur_col_off) {
+      && prev_width1 == width1 && prev_width2 == width2) {
     *right_col = prev_right_col;
     *left_col = prev_left_col;
     return;
   }
 
-  width1 = wp->w_width_inner - cur_col_off;
-  width2 = width1 + win_col_off2(wp);
-
   *left_col = 0;
   *right_col = width1;
 
-  if (wp->w_virtcol >= (colnr_T)width1) {
+  if (wp->w_virtcol >= (colnr_T)width1 && width2 > 0) {
     *right_col = width1 + ((wp->w_virtcol - width1) / width2 + 1) * width2;
   }
   if (wp->w_virtcol >= (colnr_T)width1 && width2 > 0) {
@@ -202,8 +200,9 @@ static void margin_columns_win(win_T *wp, int *left_col, int *right_col)
   prev_left_col = *left_col;
   prev_right_col = *right_col;
   prev_wp = wp;
+  prev_width1 = width1;
+  prev_width2 = width2;
   saved_w_virtcol = wp->w_virtcol;
-  prev_col_off = cur_col_off;
 }
 
 /// Put a single char from an UTF-8 buffer into a line buffer.

src/nvim/eval.c

@@ -32,7 +32,7 @@
 #include "nvim/eval/vars.h"
 #include "nvim/event/loop.h"
 #include "nvim/event/multiqueue.h"
-#include "nvim/event/process.h"
+#include "nvim/event/proc.h"
 #include "nvim/event/time.h"
 #include "nvim/ex_cmds.h"
 #include "nvim/ex_docmd.h"
@@ -8506,7 +8506,7 @@ Channel *find_job(uint64_t id, bool show_error)
 {
   Channel *data = find_channel(id);
   if (!data || data->streamtype != kChannelStreamProc
-      || process_is_stopped(&data->stream.proc)) {
+      || proc_is_stopped(&data->stream.proc)) {
     if (show_error) {
       if (data && data->streamtype != kChannelStreamProc) {
         emsg(_(e_invchanjob));

src/nvim/eval.lua

@@ -8044,7 +8044,7 @@ M.funcs = {
 
     ]=],
     name = 'prompt_getprompt',
-    params = { { 'buf', 'any' } },
+    params = { { 'buf', 'integer|string' } },
     signature = 'prompt_getprompt({buf})',
   },
   prompt_setcallback = {
@@ -8084,7 +8084,7 @@ M.funcs = {
 
     ]=],
     name = 'prompt_setcallback',
-    params = { { 'buf', 'any' }, { 'expr', 'any' } },
+    params = { { 'buf', 'integer|string' }, { 'expr', 'string|function' } },
     signature = 'prompt_setcallback({buf}, {expr})',
   },
   prompt_setinterrupt = {
@@ -8101,7 +8101,7 @@ M.funcs = {
 
     ]=],
     name = 'prompt_setinterrupt',
-    params = { { 'buf', 'any' }, { 'expr', 'any' } },
+    params = { { 'buf', 'integer|string' }, { 'expr', 'string|function' } },
     signature = 'prompt_setinterrupt({buf}, {expr})',
   },
   prompt_setprompt = {
@@ -8116,7 +8116,7 @@ M.funcs = {
       <
     ]=],
     name = 'prompt_setprompt',
-    params = { { 'buf', 'any' }, { 'text', 'any' } },
+    params = { { 'buf', 'integer|string' }, { 'text', 'string' } },
     signature = 'prompt_setprompt({buf}, {text})',
   },
   pum_getpos = {
@@ -8927,6 +8927,9 @@ M.funcs = {
       The value must not be negative.  A zero value is like not
       giving the argument.
 
+      Note: the timeout is only considered when searching, not
+      while evaluating the {skip} expression.
+
       If the {skip} expression is given it is evaluated with the
       cursor positioned on the start of a match.  If it evaluates to
       non-zero this match is skipped.  This can be used, for

src/nvim/eval/funcs.c

@@ -49,7 +49,7 @@
 #include "nvim/event/defs.h"
 #include "nvim/event/loop.h"
 #include "nvim/event/multiqueue.h"
-#include "nvim/event/process.h"
+#include "nvim/event/proc.h"
 #include "nvim/event/time.h"
 #include "nvim/ex_cmds.h"
 #include "nvim/ex_cmds_defs.h"
@@ -101,7 +101,7 @@
 #include "nvim/os/fs.h"
 #include "nvim/os/os.h"
 #include "nvim/os/os_defs.h"
-#include "nvim/os/pty_process.h"
+#include "nvim/os/pty_proc.h"
 #include "nvim/os/shell.h"
 #include "nvim/os/stdpaths_defs.h"
 #include "nvim/os/time.h"
@@ -3770,7 +3770,7 @@ static void f_jobpid(typval_T *argvars, typval_T *rettv, EvalFuncData fptr)
     return;
   }
 
-  Process *proc = &data->stream.proc;
+  Proc *proc = &data->stream.proc;
   rettv->vval.v_number = proc->pid;
 }
 
@@ -3796,13 +3796,13 @@ static void f_jobresize(typval_T *argvars, typval_T *rettv, EvalFuncData fptr)
     return;
   }
 
-  if (data->stream.proc.type != kProcessTypePty) {
+  if (data->stream.proc.type != kProcTypePty) {
     emsg(_(e_channotpty));
     return;
   }
 
-  pty_process_resize(&data->stream.pty, (uint16_t)argvars[1].vval.v_number,
-                     (uint16_t)argvars[2].vval.v_number);
+  pty_proc_resize(&data->stream.pty, (uint16_t)argvars[1].vval.v_number,
+                  (uint16_t)argvars[2].vval.v_number);
   rettv->vval.v_number = 1;
 }
 
@@ -4077,7 +4077,7 @@ static void f_jobstop(typval_T *argvars, typval_T *rettv, EvalFuncData fptr)
     // Ignore return code, but show error later.
     channel_close(data->id, kChannelPartRpc, &error);
   }
-  process_stop(&data->stream.proc);
+  proc_stop(&data->stream.proc);
   rettv->vval.v_number = 1;
   if (error) {
     emsg(error);
@@ -4113,10 +4113,10 @@ static void f_jobwait(typval_T *argvars, typval_T *rettv, EvalFuncData fptr)
         || !(chan = find_channel((uint64_t)TV_LIST_ITEM_TV(arg)->vval.v_number))
         || chan->streamtype != kChannelStreamProc) {
       jobs[i] = NULL;  // Invalid job.
-    } else if (process_is_stopped(&chan->stream.proc)) {
+    } else if (proc_is_stopped(&chan->stream.proc)) {
       // Job is stopped but not fully destroyed.
       // Ensure all callbacks on its event queue are executed. #15402
-      process_wait(&chan->stream.proc, -1, NULL);
+      proc_wait(&chan->stream.proc, -1, NULL);
       jobs[i] = NULL;  // Invalid job.
     } else {
       jobs[i] = chan;
@@ -4144,8 +4144,8 @@ static void f_jobwait(typval_T *argvars, typval_T *rettv, EvalFuncData fptr)
     if (jobs[i] == NULL) {
       continue;  // Invalid job, will assign status=-3 below.
     }
-    int status = process_wait(&jobs[i]->stream.proc, remaining,
-                              waiting_jobs);
+    int status = proc_wait(&jobs[i]->stream.proc, remaining,
+                           waiting_jobs);
     if (status < 0) {
       break;  // Interrupted (CTRL-C) or timeout, skip remaining jobs.
     }
@@ -7641,7 +7641,7 @@ static void get_xdg_var_list(const XDGVarType xdg, typval_T *rettv)
     return;
   }
   const void *iter = NULL;
-  const char *appname = get_appname();
+  const char *appname = get_appname(false);
   do {
     size_t dir_len;
     const char *dir;
@@ -8207,7 +8207,7 @@ static void f_termopen(typval_T *argvars, typval_T *rettv, EvalFuncData fptr)
     return;
   }
 
-  int pid = chan->stream.pty.process.pid;
+  int pid = chan->stream.pty.proc.pid;
 
   // "./…" => "/home/foo/…"
   vim_FullName(cwd, NameBuff, sizeof(NameBuff), false);

src/nvim/event/defs.h

@@ -142,30 +142,31 @@ struct socket_watcher {
 };
 
 typedef enum {
-  kProcessTypeUv,
-  kProcessTypePty,
-} ProcessType;
+  kProcTypeUv,
+  kProcTypePty,
+} ProcType;
 
-typedef struct process Process;
-typedef void (*process_exit_cb)(Process *proc, int status, void *data);
-typedef void (*internal_process_cb)(Process *proc);
+/// OS process
+typedef struct proc Proc;
+typedef void (*proc_exit_cb)(Proc *proc, int status, void *data);
+typedef void (*internal_proc_cb)(Proc *proc);
 
-struct process {
-  ProcessType type;
+struct proc {
+  ProcType type;
   Loop *loop;
   void *data;
   int pid, status, refcount;
   uint8_t exit_signal;  // Signal used when killing (on Windows).
-  uint64_t stopped_time;  // process_stop() timestamp
+  uint64_t stopped_time;  // proc_stop() timestamp
   const char *cwd;
   char **argv;
   const char *exepath;
   dict_T *env;
   Stream in;
   RStream out, err;
-  /// Exit handler. If set, user must call process_free().
-  process_exit_cb cb;
-  internal_process_cb internal_exit_cb, internal_close_cb;
+  /// Exit handler. If set, user must call proc_free().
+  proc_exit_cb cb;
+  internal_proc_cb internal_exit_cb, internal_close_cb;
   bool closed, detach, overlapped, fwd_err;
   MultiQueue *events;
 };

src/nvim/event/libuv_proc.c

@@ -5,9 +5,9 @@
 
 #include "nvim/eval/typval.h"
 #include "nvim/event/defs.h"
-#include "nvim/event/libuv_process.h"
+#include "nvim/event/libuv_proc.h"
 #include "nvim/event/loop.h"
-#include "nvim/event/process.h"
+#include "nvim/event/proc.h"
 #include "nvim/log.h"
 #include "nvim/os/os.h"
 #include "nvim/os/os_defs.h"
@@ -15,15 +15,15 @@
 #include "nvim/ui_client.h"
 
 #ifdef INCLUDE_GENERATED_DECLARATIONS
-# include "event/libuv_process.c.generated.h"
+# include "event/libuv_proc.c.generated.h"
 #endif
 
 /// @returns zero on success, or negative error code
-int libuv_process_spawn(LibuvProcess *uvproc)
+int libuv_proc_spawn(LibuvProc *uvproc)
   FUNC_ATTR_NONNULL_ALL
 {
-  Process *proc = (Process *)uvproc;
-  uvproc->uvopts.file = process_get_exepath(proc);
+  Proc *proc = (Proc *)uvproc;
+  uvproc->uvopts.file = proc_get_exepath(proc);
   uvproc->uvopts.args = proc->argv;
   uvproc->uvopts.flags = UV_PROCESS_WINDOWS_HIDE;
 #ifdef MSWIN
@@ -101,7 +101,7 @@ int libuv_process_spawn(LibuvProcess *uvproc)
   return status;
 }
 
-void libuv_process_close(LibuvProcess *uvproc)
+void libuv_proc_close(LibuvProc *uvproc)
   FUNC_ATTR_NONNULL_ARG(1)
 {
   uv_close((uv_handle_t *)&uvproc->uv, close_cb);
@@ -109,11 +109,11 @@ void libuv_process_close(LibuvProcess *uvproc)
 
 static void close_cb(uv_handle_t *handle)
 {
-  Process *proc = handle->data;
+  Proc *proc = handle->data;
   if (proc->internal_close_cb) {
     proc->internal_close_cb(proc);
   }
-  LibuvProcess *uvproc = (LibuvProcess *)proc;
+  LibuvProc *uvproc = (LibuvProc *)proc;
   if (uvproc->uvopts.env) {
     os_free_fullenv(uvproc->uvopts.env);
   }
@@ -121,7 +121,7 @@ static void close_cb(uv_handle_t *handle)
 
 static void exit_cb(uv_process_t *handle, int64_t status, int term_signal)
 {
-  Process *proc = handle->data;
+  Proc *proc = handle->data;
 #if defined(MSWIN)
   // Use stored/expected signal.
   term_signal = proc->exit_signal;
@@ -130,10 +130,10 @@ static void exit_cb(uv_process_t *handle, int64_t status, int term_signal)
   proc->internal_exit_cb(proc);
 }
 
-LibuvProcess libuv_process_init(Loop *loop, void *data)
+LibuvProc libuv_proc_init(Loop *loop, void *data)
 {
-  LibuvProcess rv = {
-    .process = process_init(loop, kProcessTypeUv, data)
+  LibuvProc rv = {
+    .proc = proc_init(loop, kProcTypeUv, data)
   };
   return rv;
 }

src/nvim/event/libuv_proc.h

@@ -5,12 +5,12 @@
 #include "nvim/event/defs.h"
 
 typedef struct {
-  Process process;
+  Proc proc;
   uv_process_t uv;
   uv_process_options_t uvopts;
   uv_stdio_container_t uvstdio[4];
-} LibuvProcess;
+} LibuvProc;
 
 #ifdef INCLUDE_GENERATED_DECLARATIONS
-# include "event/libuv_process.h.generated.h"
+# include "event/libuv_proc.h.generated.h"
 #endif

src/nvim/event/loop.h

@@ -16,15 +16,14 @@ struct loop {
   uv_loop_t uv;
   MultiQueue *events;
   MultiQueue *thread_events;
-  // Immediate events:
-  //    "Processed after exiting uv_run() (to avoid recursion), but before
-  //    returning from loop_poll_events()." 502aee690c98
-  // Practical consequence (for main_loop): these events are processed by
-  //    state_enter()..os_inchar()
-  // whereas "regular" events (main_loop.events) are processed by
-  //    state_enter()..VimState.execute()
-  // But state_enter()..os_inchar() can be "too early" if you want the event
-  // to trigger UI updates and other user-activity-related side-effects.
+  // Immediate events.
+  // - "Processed after exiting `uv_run()` (to avoid recursion), but before returning from
+  //   `loop_poll_events()`." 502aee690c98
+  // - Practical consequence (for `main_loop`):
+  //    - these are processed by `state_enter()..input_get()` whereas "regular" events
+  //      (`main_loop.events`) are processed by `state_enter()..VimState.execute()`
+  //    - `state_enter()..input_get()` can be "too early" if you want the event to trigger UI
+  //      updates and other user-activity-related side-effects.
   MultiQueue *fast_events;
 
   // used by process/job-control subsystem

src/nvim/event/proc.c

@@ -4,24 +4,24 @@
 #include <uv.h>
 
 #include "klib/klist.h"
-#include "nvim/event/libuv_process.h"
+#include "nvim/event/libuv_proc.h"
 #include "nvim/event/loop.h"
 #include "nvim/event/multiqueue.h"
-#include "nvim/event/process.h"
+#include "nvim/event/proc.h"
 #include "nvim/event/rstream.h"
 #include "nvim/event/stream.h"
 #include "nvim/event/wstream.h"
 #include "nvim/globals.h"
 #include "nvim/log.h"
 #include "nvim/main.h"
-#include "nvim/os/process.h"
-#include "nvim/os/pty_process.h"
+#include "nvim/os/proc.h"
+#include "nvim/os/pty_proc.h"
 #include "nvim/os/shell.h"
 #include "nvim/os/time.h"
 #include "nvim/ui_client.h"
 
 #ifdef INCLUDE_GENERATED_DECLARATIONS
-# include "event/process.c.generated.h"
+# include "event/proc.c.generated.h"
 #endif
 
 // Time for a process to exit cleanly before we send KILL.
@@ -33,13 +33,13 @@
 void __gcov_flush(void);
 #endif
 
-static bool process_is_tearing_down = false;
+static bool proc_is_tearing_down = false;
 
 // Delay exit until handles are closed, to avoid deadlocks
 static int exit_need_delay = 0;
 
 /// @returns zero on success, or negative error code
-int process_spawn(Process *proc, bool in, bool out, bool err)
+int proc_spawn(Proc *proc, bool in, bool out, bool err)
   FUNC_ATTR_NONNULL_ALL
 {
   // forwarding stderr contradicts with processing it internally
@@ -70,11 +70,11 @@ int process_spawn(Process *proc, bool in, bool out, bool err)
 
   int status;
   switch (proc->type) {
-  case kProcessTypeUv:
-    status = libuv_process_spawn((LibuvProcess *)proc);
+  case kProcTypeUv:
+    status = libuv_proc_spawn((LibuvProc *)proc);
     break;
-  case kProcessTypePty:
-    status = pty_process_spawn((PtyProcess *)proc);
+  case kProcTypePty:
+    status = pty_proc_spawn((PtyProc *)proc);
     break;
   }
 
@@ -89,12 +89,12 @@ int process_spawn(Process *proc, bool in, bool out, bool err)
       uv_close((uv_handle_t *)&proc->err.s.uv.pipe, NULL);
     }
 
-    if (proc->type == kProcessTypeUv) {
-      uv_close((uv_handle_t *)&(((LibuvProcess *)proc)->uv), NULL);
+    if (proc->type == kProcTypeUv) {
+      uv_close((uv_handle_t *)&(((LibuvProc *)proc)->uv), NULL);
     } else {
-      process_close(proc);
+      proc_close(proc);
     }
-    process_free(proc);
+    proc_free(proc);
     proc->status = -1;
     return status;
   }
@@ -102,52 +102,52 @@ int process_spawn(Process *proc, bool in, bool out, bool err)
   if (in) {
     stream_init(NULL, &proc->in, -1, (uv_stream_t *)&proc->in.uv.pipe);
     proc->in.internal_data = proc;
-    proc->in.internal_close_cb = on_process_stream_close;
+    proc->in.internal_close_cb = on_proc_stream_close;
     proc->refcount++;
   }
 
   if (out) {
     stream_init(NULL, &proc->out.s, -1, (uv_stream_t *)&proc->out.s.uv.pipe);
     proc->out.s.internal_data = proc;
-    proc->out.s.internal_close_cb = on_process_stream_close;
+    proc->out.s.internal_close_cb = on_proc_stream_close;
     proc->refcount++;
   }
 
   if (err) {
     stream_init(NULL, &proc->err.s, -1, (uv_stream_t *)&proc->err.s.uv.pipe);
     proc->err.s.internal_data = proc;
-    proc->err.s.internal_close_cb = on_process_stream_close;
+    proc->err.s.internal_close_cb = on_proc_stream_close;
     proc->refcount++;
   }
 
-  proc->internal_exit_cb = on_process_exit;
+  proc->internal_exit_cb = on_proc_exit;
   proc->internal_close_cb = decref;
   proc->refcount++;
   kl_push(WatcherPtr, proc->loop->children, proc);
-  DLOG("new: pid=%d exepath=[%s]", proc->pid, process_get_exepath(proc));
+  DLOG("new: pid=%d exepath=[%s]", proc->pid, proc_get_exepath(proc));
   return 0;
 }
 
-void process_teardown(Loop *loop) FUNC_ATTR_NONNULL_ALL
+void proc_teardown(Loop *loop) FUNC_ATTR_NONNULL_ALL
 {
-  process_is_tearing_down = true;
+  proc_is_tearing_down = true;
   kl_iter(WatcherPtr, loop->children, current) {
-    Process *proc = (*current)->data;
-    if (proc->detach || proc->type == kProcessTypePty) {
+    Proc *proc = (*current)->data;
+    if (proc->detach || proc->type == kProcTypePty) {
       // Close handles to process without killing it.
-      CREATE_EVENT(loop->events, process_close_handles, proc);
+      CREATE_EVENT(loop->events, proc_close_handles, proc);
     } else {
-      process_stop(proc);
+      proc_stop(proc);
     }
   }
 
   // Wait until all children exit and all close events are processed.
   LOOP_PROCESS_EVENTS_UNTIL(loop, loop->events, -1,
                             kl_empty(loop->children) && multiqueue_empty(loop->events));
-  pty_process_teardown(loop);
+  pty_proc_teardown(loop);
 }
 
-void process_close_streams(Process *proc) FUNC_ATTR_NONNULL_ALL
+void proc_close_streams(Proc *proc) FUNC_ATTR_NONNULL_ALL
 {
   wstream_may_close(&proc->in);
   rstream_may_close(&proc->out);
@@ -162,7 +162,7 @@ void process_close_streams(Process *proc) FUNC_ATTR_NONNULL_ALL
 /// @return Exit code of the process. proc->status will have the same value.
 ///         -1 if the timeout expired while the process is still running.
 ///         -2 if the user interrupted the wait.
-int process_wait(Process *proc, int ms, MultiQueue *events)
+int proc_wait(Proc *proc, int ms, MultiQueue *events)
   FUNC_ATTR_NONNULL_ARG(1)
 {
   if (!proc->refcount) {
@@ -186,7 +186,7 @@ int process_wait(Process *proc, int ms, MultiQueue *events)
   // Assume that a user hitting CTRL-C does not like the current job.  Kill it.
   if (got_int) {
     got_int = false;
-    process_stop(proc);
+    proc_stop(proc);
     if (ms == -1) {
       // We can only return if all streams/handles are closed and the job
       // exited.
@@ -214,7 +214,7 @@ int process_wait(Process *proc, int ms, MultiQueue *events)
 }
 
 /// Ask a process to terminate and eventually kill if it doesn't respond
-void process_stop(Process *proc) FUNC_ATTR_NONNULL_ALL
+void proc_stop(Proc *proc) FUNC_ATTR_NONNULL_ALL
 {
   bool exited = (proc->status >= 0);
   if (exited || proc->stopped_time) {
@@ -224,13 +224,13 @@ void process_stop(Process *proc) FUNC_ATTR_NONNULL_ALL
   proc->exit_signal = SIGTERM;
 
   switch (proc->type) {
-  case kProcessTypeUv:
+  case kProcTypeUv:
     os_proc_tree_kill(proc->pid, SIGTERM);
     break;
-  case kProcessTypePty:
+  case kProcTypePty:
     // close all streams for pty processes to send SIGHUP to the process
-    process_close_streams(proc);
-    pty_process_close_master((PtyProcess *)proc);
+    proc_close_streams(proc);
+    pty_proc_close_master((PtyProc *)proc);
     break;
   }
 
@@ -240,7 +240,7 @@ void process_stop(Process *proc) FUNC_ATTR_NONNULL_ALL
 }
 
 /// Frees process-owned resources.
-void process_free(Process *proc) FUNC_ATTR_NONNULL_ALL
+void proc_free(Proc *proc) FUNC_ATTR_NONNULL_ALL
 {
   if (proc->argv != NULL) {
     shell_free_argv(proc->argv);
@@ -249,19 +249,19 @@ void process_free(Process *proc) FUNC_ATTR_NONNULL_ALL
 }
 
 /// Sends SIGKILL (or SIGTERM..SIGKILL for PTY jobs) to processes that did
-/// not terminate after process_stop().
+/// not terminate after proc_stop().
 static void children_kill_cb(uv_timer_t *handle)
 {
   Loop *loop = handle->loop->data;
 
   kl_iter(WatcherPtr, loop->children, current) {
-    Process *proc = (*current)->data;
+    Proc *proc = (*current)->data;
     bool exited = (proc->status >= 0);
     if (exited || !proc->stopped_time) {
       continue;
     }
     uint64_t term_sent = UINT64_MAX == proc->stopped_time;
-    if (kProcessTypePty != proc->type || term_sent) {
+    if (kProcTypePty != proc->type || term_sent) {
       proc->exit_signal = SIGKILL;
       os_proc_tree_kill(proc->pid, SIGKILL);
     } else {
@@ -275,19 +275,19 @@ static void children_kill_cb(uv_timer_t *handle)
   }
 }
 
-static void process_close_event(void **argv)
+static void proc_close_event(void **argv)
 {
-  Process *proc = argv[0];
+  Proc *proc = argv[0];
   if (proc->cb) {
     // User (hint: channel_job_start) is responsible for calling
-    // process_free().
+    // proc_free().
     proc->cb(proc, proc->status, proc->data);
   } else {
-    process_free(proc);
+    proc_free(proc);
   }
 }
 
-static void decref(Process *proc)
+static void decref(Proc *proc)
 {
   if (--proc->refcount != 0) {
     return;
@@ -303,13 +303,13 @@ static void decref(Process *proc)
   }
   assert(node);
   kl_shift_at(WatcherPtr, loop->children, node);
-  CREATE_EVENT(proc->events, process_close_event, proc);
+  CREATE_EVENT(proc->events, proc_close_event, proc);
 }
 
-static void process_close(Process *proc)
+static void proc_close(Proc *proc)
   FUNC_ATTR_NONNULL_ARG(1)
 {
-  if (process_is_tearing_down && (proc->detach || proc->type == kProcessTypePty)
+  if (proc_is_tearing_down && (proc->detach || proc->type == kProcTypePty)
       && proc->closed) {
     // If a detached/pty process dies while tearing down it might get closed
     // twice.
@@ -319,17 +319,17 @@ static void process_close(Process *proc)
   proc->closed = true;
 
   if (proc->detach) {
-    if (proc->type == kProcessTypeUv) {
-      uv_unref((uv_handle_t *)&(((LibuvProcess *)proc)->uv));
+    if (proc->type == kProcTypeUv) {
+      uv_unref((uv_handle_t *)&(((LibuvProc *)proc)->uv));
     }
   }
 
   switch (proc->type) {
-  case kProcessTypeUv:
-    libuv_process_close((LibuvProcess *)proc);
+  case kProcTypeUv:
+    libuv_proc_close((LibuvProc *)proc);
     break;
-  case kProcessTypePty:
-    pty_process_close((PtyProcess *)proc);
+  case kProcTypePty:
+    pty_proc_close((PtyProc *)proc);
     break;
   }
 }
@@ -338,7 +338,7 @@ static void process_close(Process *proc)
 ///
 /// @param proc     Process, for which an output stream should be flushed.
 /// @param stream   Stream to flush.
-static void flush_stream(Process *proc, RStream *stream)
+static void flush_stream(Proc *proc, RStream *stream)
   FUNC_ATTR_NONNULL_ARG(1)
 {
   if (!stream || stream->s.closed) {
@@ -382,16 +382,16 @@ static void flush_stream(Process *proc, RStream *stream)
   }
 }
 
-static void process_close_handles(void **argv)
+static void proc_close_handles(void **argv)
 {
-  Process *proc = argv[0];
+  Proc *proc = argv[0];
 
   exit_need_delay++;
   flush_stream(proc, &proc->out);
   flush_stream(proc, &proc->err);
 
-  process_close_streams(proc);
-  process_close(proc);
+  proc_close_streams(proc);
+  proc_close(proc);
   exit_need_delay--;
 }
 
@@ -426,7 +426,7 @@ void exit_from_channel(int status)
   multiqueue_put(main_loop.fast_events, exit_event, (void *)(intptr_t)status);
 }
 
-static void on_process_exit(Process *proc)
+static void on_proc_exit(Proc *proc)
 {
   Loop *loop = proc->loop;
   ILOG("exited: pid=%d status=%d stoptime=%" PRIu64, proc->pid, proc->status,
@@ -439,13 +439,13 @@ static void on_process_exit(Process *proc)
   // Process has terminated, but there could still be data to be read from the
   // OS. We are still in the libuv loop, so we cannot call code that polls for
   // more data directly. Instead delay the reading after the libuv loop by
-  // queueing process_close_handles() as an event.
+  // queueing proc_close_handles() as an event.
   MultiQueue *queue = proc->events ? proc->events : loop->events;
-  CREATE_EVENT(queue, process_close_handles, proc);
+  CREATE_EVENT(queue, proc_close_handles, proc);
 }
 
-static void on_process_stream_close(Stream *stream, void *data)
+static void on_proc_stream_close(Stream *stream, void *data)
 {
-  Process *proc = data;
+  Proc *proc = data;
   decref(proc);
 }

src/nvim/event/proc.h

@@ -6,9 +6,9 @@
 #include "nvim/event/defs.h"  // IWYU pragma: keep
 #include "nvim/types_defs.h"
 
-static inline Process process_init(Loop *loop, ProcessType type, void *data)
+static inline Proc proc_init(Loop *loop, ProcType type, void *data)
 {
-  return (Process) {
+  return (Proc) {
     .type = type,
     .data = data,
     .loop = loop,
@@ -33,17 +33,17 @@ static inline Process process_init(Loop *loop, ProcessType type, void *data)
 }
 
 /// Get the path to the executable of the process.
-static inline const char *process_get_exepath(Process *proc)
+static inline const char *proc_get_exepath(Proc *proc)
 {
   return proc->exepath != NULL ? proc->exepath : proc->argv[0];
 }
 
-static inline bool process_is_stopped(Process *proc)
+static inline bool proc_is_stopped(Proc *proc)
 {
   bool exited = (proc->status >= 0);
   return exited || (proc->stopped_time != 0);
 }
 
 #ifdef INCLUDE_GENERATED_DECLARATIONS
-# include "event/process.h.generated.h"
+# include "event/proc.h.generated.h"
 #endif

src/nvim/event/stream.c

@@ -94,14 +94,17 @@ void stream_init(Loop *loop, Stream *stream, int fd, uv_stream_t *uvstream)
   stream->events = NULL;
 }
 
-void stream_close(Stream *stream, stream_close_cb on_stream_close, void *data, bool rstream)
+void stream_may_close(Stream *stream, bool rstream)
   FUNC_ATTR_NONNULL_ARG(1)
 {
+  if (stream->closed) {
+    return;
+  }
   assert(!stream->closed);
   DLOG("closing Stream: %p", (void *)stream);
   stream->closed = true;
-  stream->close_cb = on_stream_close;
-  stream->close_cb_data = data;
+  stream->close_cb = NULL;
+  stream->close_cb_data = NULL;
 
 #ifdef MSWIN
   if (UV_TTY == uv_guess_handle(stream->fd)) {
@@ -115,13 +118,6 @@ void stream_close(Stream *stream, stream_close_cb on_stream_close, void *data, b
   }
 }
 
-void stream_may_close(Stream *stream, bool rstream)
-{
-  if (!stream->closed) {
-    stream_close(stream, NULL, NULL, rstream);
-  }
-}
-
 void stream_close_handle(Stream *stream, bool rstream)
   FUNC_ATTR_NONNULL_ALL
 {

src/nvim/fileio.c

@@ -3264,18 +3264,12 @@ static void vim_mktempdir(void)
   char tmp[TEMP_FILE_PATH_MAXLEN];
   char path[TEMP_FILE_PATH_MAXLEN];
   char user[40] = { 0 };
-  char appname[40] = { 0 };
 
   os_get_username(user, sizeof(user));
   // Usernames may contain slashes! #19240
   memchrsub(user, '/', '_', sizeof(user));
   memchrsub(user, '\\', '_', sizeof(user));
 
-  // Appname may be a relative path, replace slashes to make it name-like.
-  xstrlcpy(appname, get_appname(), sizeof(appname));
-  memchrsub(appname, '/', '%', sizeof(appname));
-  memchrsub(appname, '\\', '%', sizeof(appname));
-
   // Make sure the umask doesn't remove the executable bit.
   // "repl" has been reported to use "0177".
   mode_t umask_save = umask(0077);
@@ -3283,14 +3277,15 @@ static void vim_mktempdir(void)
     // Expand environment variables, leave room for "/tmp/nvim.<user>/XXXXXX/999999999".
     expand_env((char *)temp_dirs[i], tmp, TEMP_FILE_PATH_MAXLEN - 64);
     if (!os_isdir(tmp)) {
+      if (strequal("$TMPDIR", temp_dirs[i])) {
+        WLOG("$TMPDIR tempdir not a directory (or does not exist): %s", tmp);
+      }
       continue;
     }
 
     // "/tmp/" exists, now try to create "/tmp/nvim.<user>/".
     add_pathsep(tmp);
-
-    xstrlcat(tmp, appname, sizeof(tmp));
-    xstrlcat(tmp, ".", sizeof(tmp));
+    xstrlcat(tmp, "nvim.", sizeof(tmp));
     xstrlcat(tmp, user, sizeof(tmp));
     os_mkdir(tmp, 0700);  // Always create, to avoid a race.
     bool owned = os_file_owned(tmp);

src/nvim/getchar.c

@@ -1858,7 +1858,7 @@ static void getchar_common(typval_T *argvars, typval_T *rettv)
       if (!char_avail()) {
         // Flush screen updates before blocking.
         ui_flush();
-        os_inchar(NULL, 0, -1, typebuf.tb_change_cnt, main_loop.events);
+        input_get(NULL, 0, -1, typebuf.tb_change_cnt, main_loop.events);
         if (!multiqueue_empty(main_loop.events)) {
           state_handle_k_event();
           continue;
@@ -2981,7 +2981,7 @@ int inchar(uint8_t *buf, int maxlen, long wait_time)
       uint8_t dum[DUM_LEN + 1];
 
       while (true) {
-        len = os_inchar(dum, DUM_LEN, 0, 0, NULL);
+        len = input_get(dum, DUM_LEN, 0, 0, NULL);
         if (len == 0 || (len == 1 && dum[0] == Ctrl_C)) {
           break;
         }
@@ -2997,7 +2997,7 @@ int inchar(uint8_t *buf, int maxlen, long wait_time)
 
     // Fill up to a third of the buffer, because each character may be
     // tripled below.
-    len = os_inchar(buf, maxlen / 3, (int)wait_time, tb_change_cnt, NULL);
+    len = input_get(buf, maxlen / 3, (int)wait_time, tb_change_cnt, NULL);
   }
 
   // If the typebuf was changed further down, it is like nothing was added by

src/nvim/highlight.c

@@ -370,12 +370,15 @@ void update_window_hl(win_T *wp, bool invalid)
 
   // determine window specific background set in 'winhighlight'
   bool float_win = wp->w_floating && !wp->w_config.external;
-  if (float_win && hl_def[HLF_NFLOAT] != 0) {
+  if (float_win && hl_def[HLF_NFLOAT] != 0 && ns_id > 0) {
     wp->w_hl_attr_normal = hl_def[HLF_NFLOAT];
   } else if (hl_def[HLF_COUNT] > 0) {
     wp->w_hl_attr_normal = hl_def[HLF_COUNT];
+  } else if (float_win) {
+    wp->w_hl_attr_normal = HL_ATTR(HLF_NFLOAT) > 0
+                           ? HL_ATTR(HLF_NFLOAT) : highlight_attr[HLF_NFLOAT];
   } else {
-    wp->w_hl_attr_normal = float_win ? HL_ATTR(HLF_NFLOAT) : 0;
+    wp->w_hl_attr_normal = 0;
   }
 
   if (wp->w_floating) {

src/nvim/input.c

@@ -37,7 +37,7 @@
 /// @param[in]  str  Prompt: question to ask user. Is always followed by
 ///                  " (y/n)?".
 /// @param[in]  direct  Determines what function to use to get user input. If
-///                     true then os_inchar() will be used, otherwise vgetc().
+///                     true then input_get() will be used, otherwise vgetc().
 ///                     I.e. when direct is true then characters are obtained
 ///                     directly from the user without buffers involved.
 ///
@@ -111,7 +111,7 @@ int get_keystroke(MultiQueue *events)
 
     // First time: blocking wait.  Second time: wait up to 100ms for a
     // terminal code to complete.
-    n = os_inchar(buf + len, maxlen, len == 0 ? -1 : 100, 0, events);
+    n = input_get(buf + len, maxlen, len == 0 ? -1 : 100, 0, events);
     if (n > 0) {
       // Replace zero and K_SPECIAL by a special key code.
       n = fix_input_buffer(buf + len, n);

src/nvim/log.c

@@ -29,6 +29,7 @@
 #include "nvim/os/stdpaths_defs.h"
 #include "nvim/os/time.h"
 #include "nvim/path.h"
+#include "nvim/ui_client.h"
 
 /// Cached location of the expanded log file path decided by log_path_init().
 static char log_file_path[MAXPATHL + 1] = { 0 };
@@ -322,20 +323,28 @@ static bool v_do_log_to_file(FILE *log_file, int log_level, const char *context,
     millis = (int)curtime.tv_usec / 1000;
   }
 
+  bool ui = !!ui_client_channel_id;  // Running as a UI client (--remote-ui).
+
+  // Regenerate the name when:
+  // - UI client (to ensure "ui" is in the name)
+  // - not set yet
+  // - no v:servername yet
+  bool regen = ui || name[0] == NUL || name[0] == '?';
+
   // Get a name for this Nvim instance.
   // TODO(justinmk): expose this as v:name ?
-  if (name[0] == NUL) {
-    // Parent servername.
+  if (regen) {
+    // Parent servername ($NVIM).
     const char *parent = path_tail(os_getenv(ENV_NVIM));
     // Servername. Empty until starting=false.
     const char *serv = path_tail(get_vim_var_str(VV_SEND_SERVER));
     if (parent[0] != NUL) {
-      snprintf(name, sizeof(name), "%s/c", parent);  // "/c" indicates child.
+      snprintf(name, sizeof(name), ui ? "ui/c/%s" : "c/%s", parent);  // "c/" = child of $NVIM.
     } else if (serv[0] != NUL) {
-      snprintf(name, sizeof(name), "%s", serv);
+      snprintf(name, sizeof(name), ui ? "ui/%s" : "%s", serv);
     } else {
       int64_t pid = os_get_pid();
-      snprintf(name, sizeof(name), "?.%-5" PRId64, pid);
+      snprintf(name, sizeof(name), "%s.%-5" PRId64, ui ? "ui" : "?", pid);
     }
   }
 
@@ -348,10 +357,6 @@ static bool v_do_log_to_file(FILE *log_file, int log_level, const char *context,
                      log_levels[log_level], date_time, millis, name,
                      (context == NULL ? "" : context),
                      func_name, line_num);
-  if (name[0] == '?') {
-    // No v:servername yet. Clear `name` so that the next log can try again.
-    name[0] = NUL;
-  }
 
   if (rv < 0) {
     return false;

src/nvim/main.c

@@ -43,7 +43,7 @@
 #include "nvim/eval/userfunc.h"
 #include "nvim/event/loop.h"
 #include "nvim/event/multiqueue.h"
-#include "nvim/event/process.h"
+#include "nvim/event/proc.h"
 #include "nvim/event/stream.h"
 #include "nvim/ex_cmds.h"
 #include "nvim/ex_docmd.h"
@@ -174,7 +174,7 @@ bool event_teardown(void)
   loop_poll_events(&main_loop, 0);  // Drain thread_events, fast_events.
   input_stop();
   channel_teardown();
-  process_teardown(&main_loop);
+  proc_teardown(&main_loop);
   timer_teardown();
   server_teardown();
   signal_teardown();
@@ -266,7 +266,7 @@ int main(int argc, char **argv)
 
   if (argc > 1 && STRICMP(argv[1], "-ll") == 0) {
     if (argc == 2) {
-      print_mainerr(err_arg_missing, argv[1]);
+      print_mainerr(err_arg_missing, argv[1], NULL);
       exit(1);
     }
     nlua_run_script(argv, argc, 3);
@@ -357,10 +357,8 @@ int main(int argc, char **argv)
   assert(!ui_client_channel_id && !use_builtin_ui);
   // Nvim server...
 
-  int listen_rv = server_init(params.listen_addr);
-  if (listen_rv != 0) {
-    mainerr("Failed to --listen", listen_rv < 0
-            ? os_strerror(listen_rv) : (listen_rv == 1 ? "empty address" : NULL));
+  if (!server_init(params.listen_addr)) {
+    mainerr(IObuff, NULL, NULL);
   }
 
   TIME_MSG("expanding arguments");
@@ -1053,7 +1051,7 @@ static void command_line_scan(mparm_T *parmp)
     // "+" or "+{number}" or "+/{pat}" or "+{command}" argument.
     if (argv[0][0] == '+' && !had_minmin) {
       if (parmp->n_commands >= MAX_ARG_CMDS) {
-        mainerr(err_extra_cmd, NULL);
+        mainerr(err_extra_cmd, NULL, NULL);
       }
       argv_idx = -1;  // skip to next argument
       if (argv[0][1] == NUL) {
@@ -1074,7 +1072,7 @@ static void command_line_scan(mparm_T *parmp)
           parmp->no_swap_file = true;
         } else {
           if (parmp->edit_type > EDIT_STDIN) {
-            mainerr(err_too_many_args, argv[0]);
+            mainerr(err_too_many_args, argv[0], NULL);
           }
           parmp->had_stdin_file = true;
           parmp->edit_type = EDIT_STDIN;
@@ -1137,7 +1135,7 @@ static void command_line_scan(mparm_T *parmp)
           nlua_disable_preload = true;
         } else {
           if (argv[0][argv_idx]) {
-            mainerr(err_opt_unknown, argv[0]);
+            mainerr(err_opt_unknown, argv[0], NULL);
           }
           had_minmin = true;
         }
@@ -1211,7 +1209,7 @@ static void command_line_scan(mparm_T *parmp)
         break;
       case 'q':    // "-q" QuickFix mode
         if (parmp->edit_type != EDIT_NONE) {
-          mainerr(err_too_many_args, argv[0]);
+          mainerr(err_too_many_args, argv[0], NULL);
         }
         parmp->edit_type = EDIT_QF;
         if (argv[0][argv_idx]) {  // "-q{errorfile}"
@@ -1240,7 +1238,7 @@ static void command_line_scan(mparm_T *parmp)
         break;
       case 't':    // "-t {tag}" or "-t{tag}" jump to tag
         if (parmp->edit_type != EDIT_NONE) {
-          mainerr(err_too_many_args, argv[0]);
+          mainerr(err_too_many_args, argv[0], NULL);
         }
         parmp->edit_type = EDIT_TAG;
         if (argv[0][argv_idx]) {  // "-t{tag}"
@@ -1274,7 +1272,7 @@ static void command_line_scan(mparm_T *parmp)
       case 'c':    // "-c{command}" or "-c {command}" exec command
         if (argv[0][argv_idx] != NUL) {
           if (parmp->n_commands >= MAX_ARG_CMDS) {
-            mainerr(err_extra_cmd, NULL);
+            mainerr(err_extra_cmd, NULL, NULL);
           }
           parmp->commands[parmp->n_commands++] = argv[0] + argv_idx;
           argv_idx = -1;
@@ -1291,19 +1289,19 @@ static void command_line_scan(mparm_T *parmp)
         break;
 
       default:
-        mainerr(err_opt_unknown, argv[0]);
+        mainerr(err_opt_unknown, argv[0], NULL);
       }
 
       // Handle option arguments with argument.
       if (want_argument) {
         // Check for garbage immediately after the option letter.
         if (argv[0][argv_idx] != NUL) {
-          mainerr(err_opt_garbage, argv[0]);
+          mainerr(err_opt_garbage, argv[0], NULL);
         }
 
         argc--;
         if (argc < 1 && c != 'S') {  // -S has an optional argument
-          mainerr(err_arg_missing, argv[0]);
+          mainerr(err_arg_missing, argv[0], NULL);
         }
         argv++;
         argv_idx = -1;
@@ -1312,7 +1310,7 @@ static void command_line_scan(mparm_T *parmp)
         case 'c':    // "-c {command}" execute command
         case 'S':    // "-S {file}" execute Vim script
           if (parmp->n_commands >= MAX_ARG_CMDS) {
-            mainerr(err_extra_cmd, NULL);
+            mainerr(err_extra_cmd, NULL, NULL);
           }
           if (c == 'S') {
             char *a;
@@ -1343,7 +1341,7 @@ static void command_line_scan(mparm_T *parmp)
           if (strequal(argv[-1], "--cmd")) {
             // "--cmd {command}" execute command
             if (parmp->n_pre_commands >= MAX_ARG_CMDS) {
-              mainerr(err_extra_cmd, NULL);
+              mainerr(err_extra_cmd, NULL, NULL);
             }
             parmp->pre_commands[parmp->n_pre_commands++] = argv[0];
           } else if (strequal(argv[-1], "--listen")) {
@@ -1425,7 +1423,7 @@ scripterror:
 
       // Check for only one type of editing.
       if (parmp->edit_type > EDIT_STDIN) {
-        mainerr(err_too_many_args, argv[0]);
+        mainerr(err_too_many_args, argv[0], NULL);
       }
       parmp->edit_type = EDIT_FILE;
 
@@ -1472,7 +1470,7 @@ scripterror:
   }
 
   if (embedded_mode && (silent_mode || parmp->luaf)) {
-    mainerr(_("--embed conflicts with -es/-Es/-l"), NULL);
+    mainerr(_("--embed conflicts with -es/-Es/-l"), NULL, NULL);
   }
 
   // If there is a "+123" or "-c" command, set v:swapcommand to the first one.
@@ -2135,28 +2133,30 @@ static int execute_env(char *env)
   return OK;
 }
 
-/// Prints the following then exits:
-/// - An error message `errstr`
-/// - A string `str` if not null
+/// Prints a message of the form "{msg1}: {msg2}: {msg3}", then exits with code 1.
 ///
-/// @param errstr  string containing an error message
-/// @param str     string to append to the primary error message, or NULL
-static void mainerr(const char *errstr, const char *str)
+/// @param msg1  error message
+/// @param msg2  extra message, or NULL
+/// @param msg3  extra message, or NULL
+static void mainerr(const char *msg1, const char *msg2, const char *msg3)
   FUNC_ATTR_NORETURN
 {
-  print_mainerr(errstr, str);
+  print_mainerr(msg1, msg2, msg3);
   os_exit(1);
 }
 
-static void print_mainerr(const char *errstr, const char *str)
+static void print_mainerr(const char *msg1, const char *msg2, const char *msg3)
 {
   char *prgname = path_tail(argv0);
 
   signal_stop();              // kill us with CTRL-C here, if you like
 
-  fprintf(stderr, "%s: %s", prgname, _(errstr));
-  if (str != NULL) {
-    fprintf(stderr, ": \"%s\"", str);
+  fprintf(stderr, "%s: %s", prgname, _(msg1));
+  if (msg2 != NULL) {
+    fprintf(stderr, ": \"%s\"", msg2);
+  }
+  if (msg3 != NULL) {
+    fprintf(stderr, ": \"%s\"", msg3);
   }
   fprintf(stderr, _("\nMore info with \""));
   fprintf(stderr, "%s -h\"\n", prgname);
@@ -2207,7 +2207,7 @@ static void usage(void)
   printf(_("  --headless            Don't start a user interface\n"));
   printf(_("  --listen <address>    Serve RPC API from this address\n"));
   printf(_("  --remote[-subcommand] Execute commands remotely on a server\n"));
-  printf(_("  --server <address>    Specify RPC server to send commands to\n"));
+  printf(_("  --server <address>    Connect to this Nvim server\n"));
   printf(_("  --startuptime <file>  Write startup timing messages to <file>\n"));
   printf(_("\nSee \":help startup-options\" for all options.\n"));
 }

src/nvim/memline.c

@@ -84,7 +84,7 @@
 #include "nvim/os/input.h"
 #include "nvim/os/os.h"
 #include "nvim/os/os_defs.h"
-#include "nvim/os/process.h"
+#include "nvim/os/proc.h"
 #include "nvim/os/time.h"
 #include "nvim/os/time_defs.h"
 #include "nvim/path.h"
@@ -743,7 +743,7 @@ static void add_b0_fenc(ZeroBlock *b0p, buf_T *buf)
 /// @param swap_fname Name of the swapfile. If it's from before a reboot, the result is 0.
 ///
 /// @return PID, or 0 if process is not running or the swapfile is from before a reboot.
-static int swapfile_process_running(const ZeroBlock *b0p, const char *swap_fname)
+static int swapfile_proc_running(const ZeroBlock *b0p, const char *swap_fname)
 {
   FileInfo st;
   double uptime;
@@ -1214,7 +1214,7 @@ void ml_recover(bool checkext)
       msg(_("Recovery completed. Buffer contents equals file contents."), 0);
     }
     msg_puts(_("\nYou may want to delete the .swp file now."));
-    if (swapfile_process_running(b0p, fname_used)) {
+    if (swapfile_proc_running(b0p, fname_used)) {
       // Warn there could be an active Vim on the same file, the user may
       // want to kill it.
       msg_puts(_("\nNote: process STILL RUNNING: "));
@@ -1462,7 +1462,7 @@ char *make_percent_swname(char *dir, char *dir_end, const char *name)
 }
 
 // PID of swapfile owner, or zero if not running.
-static int process_running;
+static int proc_running;
 
 /// For Vimscript "swapinfo()".
 ///
@@ -1488,7 +1488,7 @@ void swapfile_dict(const char *fname, dict_T *d)
         tv_dict_add_str_len(d, S_LEN("fname"), b0.b0_fname,
                             B0_FNAME_SIZE_ORG);
 
-        tv_dict_add_nr(d, S_LEN("pid"), swapfile_process_running(&b0, fname));
+        tv_dict_add_nr(d, S_LEN("pid"), swapfile_proc_running(&b0, fname));
         tv_dict_add_nr(d, S_LEN("mtime"), char_to_long(b0.b0_mtime));
         tv_dict_add_nr(d, S_LEN("dirty"), b0.b0_dirty ? 1 : 0);
         tv_dict_add_nr(d, S_LEN("inode"), char_to_long(b0.b0_ino));
@@ -1572,7 +1572,7 @@ static time_t swapfile_info(char *fname)
         if (char_to_long(b0.b0_pid) != 0) {
           msg_puts(_("\n        process ID: "));
           msg_outnum((int)char_to_long(b0.b0_pid));
-          if ((process_running = swapfile_process_running(&b0, fname))) {
+          if ((proc_running = swapfile_proc_running(&b0, fname))) {
             msg_puts(_(" (STILL RUNNING)"));
           }
         }
@@ -1640,7 +1640,7 @@ static bool swapfile_unchanged(char *fname)
   }
 
   // process must be known and not running.
-  if (char_to_long(b0.b0_pid) == 0 || swapfile_process_running(&b0, fname)) {
+  if (char_to_long(b0.b0_pid) == 0 || swapfile_proc_running(&b0, fname)) {
     ret = false;
   }
 
@@ -3399,7 +3399,7 @@ static char *findswapname(buf_T *buf, char **dirp, char *old_fname, bool *found_
         fd = os_open(fname, O_RDONLY, 0);
         if (fd >= 0) {
           if (read_eintr(fd, &b0, sizeof(b0)) == sizeof(b0)) {
-            process_running = swapfile_process_running(&b0, fname);
+            proc_running = swapfile_proc_running(&b0, fname);
 
             // If the swapfile has the same directory as the
             // buffer don't compare the directory names, they can
@@ -3459,7 +3459,7 @@ static char *findswapname(buf_T *buf, char **dirp, char *old_fname, bool *found_
             choice = SEA_CHOICE_READONLY;
           }
 
-          process_running = 0;  // Set by attention_message..swapfile_info.
+          proc_running = 0;  // Set by attention_message..swapfile_info.
           if (choice == SEA_CHOICE_NONE) {
             // Show info about the existing swapfile.
             attention_message(buf, fname);
@@ -3491,12 +3491,12 @@ static char *findswapname(buf_T *buf, char **dirp, char *old_fname, bool *found_
               = do_dialog(VIM_WARNING,
                           _("VIM - ATTENTION"),
                           name,
-                          process_running
+                          proc_running
                           ? _("&Open Read-Only\n&Edit anyway\n&Recover\n&Quit\n&Abort")
                           : _("&Open Read-Only\n&Edit anyway\n&Recover\n&Delete it\n&Quit\n&Abort"),
                           1, NULL, false);
 
-            if (process_running && dialog_result >= 4) {
+            if (proc_running && dialog_result >= 4) {
               // compensate for missing "Delete it" button
               dialog_result++;
             }

src/nvim/msgpack_rpc/channel.c

@@ -14,7 +14,7 @@
 #include "nvim/event/defs.h"
 #include "nvim/event/loop.h"
 #include "nvim/event/multiqueue.h"
-#include "nvim/event/process.h"
+#include "nvim/event/proc.h"
 #include "nvim/event/rstream.h"
 #include "nvim/event/wstream.h"
 #include "nvim/globals.h"

src/nvim/msgpack_rpc/channel.h

@@ -12,7 +12,7 @@
 
 /// HACK: os/input.c drains this queue immediately before blocking for input.
 ///       Events on this queue are async-safe, but they need the resolved state
-///       of os_inchar(), so they are processed "just-in-time".
+///       of input_get(), so they are processed "just-in-time".
 EXTERN MultiQueue *ch_before_blocking_events INIT( = NULL);
 
 #ifdef INCLUDE_GENERATED_DECLARATIONS

src/nvim/msgpack_rpc/server.c

@@ -11,12 +11,14 @@
 #include "nvim/event/socket.h"
 #include "nvim/garray.h"
 #include "nvim/garray_defs.h"
+#include "nvim/globals.h"
 #include "nvim/log.h"
 #include "nvim/main.h"
 #include "nvim/memory.h"
 #include "nvim/msgpack_rpc/server.h"
 #include "nvim/os/os.h"
 #include "nvim/os/stdpaths_defs.h"
+#include "nvim/types_defs.h"
 
 #define MAX_CONNECTIONS 32
 #define ENV_LISTEN "NVIM_LISTEN_ADDRESS"  // deprecated
@@ -27,37 +29,31 @@ static garray_T watchers = GA_EMPTY_INIT_VALUE;
 # include "msgpack_rpc/server.c.generated.h"
 #endif
 
-/// Initializes the module
+/// Initializes resources, handles `--listen`, starts the primary server at v:servername.
 ///
-/// @returns 0: success, 1: validation error, 2: already listening, -errno: failed to bind/listen.
-int server_init(const char *listen_addr)
+/// @returns true on success, false on fatal error (message stored in IObuff)
+bool server_init(const char *listen_addr)
 {
+  bool ok = true;
   bool must_free = false;
+  TriState user_arg = kTrue;  // User-provided --listen arg.
   ga_init(&watchers, sizeof(SocketWatcher *), 1);
 
   // $NVIM_LISTEN_ADDRESS (deprecated)
   if ((!listen_addr || listen_addr[0] == '\0') && os_env_exists(ENV_LISTEN)) {
+    user_arg = kFalse;  // User-provided env var.
     listen_addr = os_getenv(ENV_LISTEN);
   }
 
   if (!listen_addr || listen_addr[0] == '\0') {
+    user_arg = kNone;  // Autogenerated server address.
     listen_addr = server_address_new(NULL);
     must_free = true;
   }
 
-  if (!listen_addr) {
-    abort();  // Cannot happen.
-  }
-
   int rv = server_start(listen_addr);
 
-  if (os_env_exists(ENV_LISTEN)) {
-    // Unset $NVIM_LISTEN_ADDRESS, it's a liability hereafter. It is "input only", it must not be
-    // leaked to child jobs or :terminal.
-    os_unsetenv(ENV_LISTEN);
-  }
-
-  // TODO(justinmk): this is for logging_spec. Can remove this after nvim_log #7062 is merged.
+  // TODO(justinmk): this is for log_spec. Can remove this after nvim_log #7062 is merged.
   if (os_env_exists("__NVIM_TEST_LOG")) {
     ELOG("test log message");
   }
@@ -66,7 +62,28 @@ int server_init(const char *listen_addr)
     xfree((char *)listen_addr);
   }
 
-  return rv;
+  if (rv == 0 || user_arg == kNone) {
+    // The autogenerated servername can fail if the user has a broken $XDG_RUNTIME_DIR. #30282
+    // But that is not fatal (startup will continue, logged in $NVIM_LOGFILE, empty v:servername).
+    goto end;
+  }
+
+  (void)snprintf(IObuff, IOSIZE,
+                 user_arg ==
+                 kTrue ? "Failed to --listen: %s: \"%s\""
+                       : "Failed $NVIM_LISTEN_ADDRESS: %s: \"%s\"",
+                 rv < 0 ? os_strerror(rv) : (rv == 1 ? "empty address" : "?"),
+                 listen_addr);
+  ok = false;
+
+end:
+  if (os_env_exists(ENV_LISTEN)) {
+    // Unset $NVIM_LISTEN_ADDRESS, it's a liability hereafter. It is "input only", it must not be
+    // leaked to child jobs or :terminal.
+    os_unsetenv(ENV_LISTEN);
+  }
+
+  return ok;
 }
 
 /// Teardown a single server
@@ -97,17 +114,19 @@ void server_teardown(void)
 /// - Windows: "\\.\pipe\<name>.<pid>.<counter>"
 /// - Other: "/tmp/nvim.user/xxx/<name>.<pid>.<counter>"
 char *server_address_new(const char *name)
+  FUNC_ATTR_WARN_UNUSED_RESULT FUNC_ATTR_NONNULL_RET
 {
   static uint32_t count = 0;
   char fmt[ADDRESS_MAX_SIZE];
-  const char *appname = get_appname();
 #ifdef MSWIN
+  (void)get_appname(true);
   int r = snprintf(fmt, sizeof(fmt), "\\\\.\\pipe\\%s.%" PRIu64 ".%" PRIu32,
-                   name ? name : appname, os_get_pid(), count++);
+                   name ? name : NameBuff, os_get_pid(), count++);
 #else
   char *dir = stdpaths_get_xdg_var(kXDGRuntimeDir);
+  (void)get_appname(true);
   int r = snprintf(fmt, sizeof(fmt), "%s/%s.%" PRIu64 ".%" PRIu32,
-                   dir, name ? name : appname, os_get_pid(), count++);
+                   dir, name ? name : NameBuff, os_get_pid(), count++);
   xfree(dir);
 #endif
   if ((size_t)r >= sizeof(fmt)) {

src/nvim/normal.c

@@ -6597,11 +6597,11 @@ static void nv_open(cmdarg_T *cap)
 static void nv_event(cmdarg_T *cap)
 {
   // Garbage collection should have been executed before blocking for events in
-  // the `os_inchar` in `state_enter`, but we also disable it here in case the
-  // `os_inchar` branch was not executed (!multiqueue_empty(loop.events), which
+  // the `input_get` in `state_enter`, but we also disable it here in case the
+  // `input_get` branch was not executed (!multiqueue_empty(loop.events), which
   // could have `may_garbage_collect` set to true in `normal_check`).
   //
-  // That is because here we may run code that calls `os_inchar`
+  // That is because here we may run code that calls `input_get`
   // later(`f_confirm` or `get_keystroke` for example), but in these cases it is
   // not safe to perform garbage collection because there could be unreferenced
   // lists or dicts being used.

src/nvim/option.c

@@ -210,39 +210,53 @@ static void set_init_default_backupskip(void)
   OptIndex opt_idx = kOptBackupskip;
 
   ga_init(&ga, 1, 100);
-  for (size_t n = 0; n < ARRAY_SIZE(names); n++) {
+  for (size_t i = 0; i < ARRAY_SIZE(names); i++) {
     bool mustfree = true;
     char *p;
+    size_t plen;
 #ifdef UNIX
-    if (*names[n] == NUL) {
+    if (*names[i] == NUL) {
 # ifdef __APPLE__
       p = "/private/tmp";
+      plen = STRLEN_LITERAL("/private/tmp");
 # else
       p = "/tmp";
+      plen = STRLEN_LITERAL("/tmp");
 # endif
       mustfree = false;
     } else
 #endif
     {
-      p = vim_getenv(names[n]);
+      p = vim_getenv(names[i]);
+      plen = 0;  // will be calcuated below
     }
     if (p != NULL && *p != NUL) {
-      // First time count the NUL, otherwise count the ','.
-      const size_t len = strlen(p) + 3;
-      char *item = xmalloc(len);
-      xstrlcpy(item, p, len);
-      add_pathsep(item);
-      xstrlcat(item, "*", len);
-      if (find_dup_item(ga.ga_data, item, options[opt_idx].flags)
-          == NULL) {
-        ga_grow(&ga, (int)len);
-        if (!GA_EMPTY(&ga)) {
-          strcat(ga.ga_data, ",");
+      bool has_trailing_path_sep = false;
+
+      if (plen == 0) {
+        // the value was retrieved from the environment
+        plen = strlen(p);
+        // does the value include a trailing path separator?
+        if (after_pathsep(p, p + plen)) {
+          has_trailing_path_sep = true;
         }
-        strcat(ga.ga_data, p);
-        add_pathsep(ga.ga_data);
-        strcat(ga.ga_data, "*");
-        ga.ga_len += (int)len;
+      }
+
+      // item size needs to be large enough to include "/*" and a trailing NUL
+      // note: the value (and therefore plen) may already include a path separator
+      size_t itemsize = plen + (has_trailing_path_sep ? 0 : 1) + 2;
+      char *item = xmalloc(itemsize);
+      // add a preceeding comma as a separator after the first item
+      size_t itemseplen = (ga.ga_len == 0) ? 0 : 1;
+
+      size_t itemlen = (size_t)vim_snprintf(item, itemsize, "%s%s*", p,
+                                            has_trailing_path_sep ? "" : PATHSEPSTR);
+
+      if (find_dup_item(ga.ga_data, item, itemlen, options[opt_idx].flags) == NULL) {
+        ga_grow(&ga, (int)(itemseplen + itemlen + 1));
+        ga.ga_len += vim_snprintf((char *)ga.ga_data + ga.ga_len,
+                                  itemseplen + itemlen + 1,
+                                  "%s%s", (itemseplen > 0) ? "," : "", item);
       }
       xfree(item);
     }
@@ -526,7 +540,8 @@ static void set_string_default(OptIndex opt_idx, char *val, bool allocated)
 
 /// For an option value that contains comma separated items, find "newval" in
 /// "origval".  Return NULL if not found.
-static char *find_dup_item(char *origval, const char *newval, uint32_t flags)
+static char *find_dup_item(char *origval, const char *newval, const size_t newvallen,
+                           uint32_t flags)
   FUNC_ATTR_NONNULL_ARG(2)
 {
   if (origval == NULL) {
@@ -535,11 +550,10 @@ static char *find_dup_item(char *origval, const char *newval, uint32_t flags)
 
   int bs = 0;
 
-  const size_t newlen = strlen(newval);
   for (char *s = origval; *s != NUL; s++) {
     if ((!(flags & P_COMMA) || s == origval || (s[-1] == ',' && !(bs & 1)))
-        && strncmp(s, newval, newlen) == 0
-        && (!(flags & P_COMMA) || s[newlen] == ',' || s[newlen] == NUL)) {
+        && strncmp(s, newval, newvallen) == 0
+        && (!(flags & P_COMMA) || s[newvallen] == ',' || s[newvallen] == NUL)) {
       return s;
     }
     // Count backslashes.  Only a comma with an even number of backslashes
@@ -697,10 +711,10 @@ void set_helplang_default(const char *lang)
   }
   p_hlg = xmemdupz(lang, lang_len);
   // zh_CN becomes "cn", zh_TW becomes "tw".
-  if (STRNICMP(p_hlg, "zh_", 3) == 0 && strlen(p_hlg) >= 5) {
+  if (STRNICMP(p_hlg, "zh_", 3) == 0 && lang_len >= 5) {
     p_hlg[0] = (char)TOLOWER_ASC(p_hlg[3]);
     p_hlg[1] = (char)TOLOWER_ASC(p_hlg[4]);
-  } else if (strlen(p_hlg) >= 1 && *p_hlg == 'C') {
+  } else if (lang_len && *p_hlg == 'C') {
     // any C like setting, such as C.UTF-8, becomes "en"
     p_hlg[0] = 'e';
     p_hlg[1] = 'n';
@@ -950,7 +964,7 @@ static char *stropt_get_newval(int nextchar, OptIndex opt_idx, char **argp, void
     int len = 0;
     if (op == OP_REMOVING || (flags & P_NODUP)) {
       len = (int)strlen(newval);
-      s = find_dup_item(origval, newval, flags);
+      s = find_dup_item(origval, newval, (size_t)len, flags);
 
       // do not add if already there
       if ((op == OP_ADDING || op == OP_PREPENDING) && s != NULL) {
@@ -1464,11 +1478,10 @@ int do_set(char *arg, int opt_flags)
         }
 
         if (errmsg != NULL) {
-          xstrlcpy(IObuff, _(errmsg), IOSIZE);
-          int i = (int)strlen(IObuff) + 2;
+          int i = vim_snprintf((char *)IObuff, IOSIZE, "%s", _(errmsg)) + 2;
           if (i + (arg - startarg) < IOSIZE) {
             // append the argument with the error
-            xstrlcat(IObuff, ": ", IOSIZE);
+            xstrlcpy(IObuff + i - 2, ": ", (size_t)(IOSIZE - i + 2));
             assert(arg >= startarg);
             memmove(IObuff + i, startarg, (size_t)(arg - startarg));
             IObuff[i + (arg - startarg)] = NUL;
@@ -5431,7 +5444,8 @@ void set_context_in_set_cmd(expand_T *xp, char *arg, int opt_flags)
     xp->xp_pattern = arg;
     return;
   }
-  char *p = arg + strlen(arg) - 1;
+  char *const argend = arg + strlen(arg);
+  char *p = argend - 1;
   if (*p == ' ' && *(p - 1) != '\\') {
     xp->xp_pattern = p + 1;
     return;
@@ -5618,7 +5632,7 @@ void set_context_in_set_cmd(expand_T *xp, char *arg, int opt_flags)
   // Triple-backslashed escaped file names (e.g. 'path') can also be
   // delimited by space.
   if ((flags & P_EXPAND) || (flags & P_COMMA) || (flags & P_COLON)) {
-    for (p = arg + strlen(arg) - 1; p > xp->xp_pattern; p--) {
+    for (p = argend - 1; p > xp->xp_pattern; p--) {
       // count number of backslashes before ' ' or ','
       if (*p == ' ' || *p == ',' || (*p == ':' && (flags & P_COLON))) {
         char *s = p;
@@ -5642,7 +5656,7 @@ void set_context_in_set_cmd(expand_T *xp, char *arg, int opt_flags)
   // An option that is a list of single-character flags should always start
   // at the end as we don't complete words.
   if (flags & P_FLAGLIST) {
-    xp->xp_pattern = arg + strlen(arg);
+    xp->xp_pattern = argend;
   }
 
   // Some options can either be using file/dir expansions, or custom value
@@ -5952,7 +5966,7 @@ int ExpandSettingSubtract(expand_T *xp, regmatch_T *regmatch, int *numMatches, c
 
     int count = 0;
 
-    (*matches)[count++] = xstrdup(option_val);
+    (*matches)[count++] = xmemdupz(option_val, num_flags);
 
     if (num_flags > 1) {
       // If more than one flags, split the flags up and expose each

src/nvim/options.lua

@@ -9047,7 +9047,7 @@ return {
       desc = [=[
         When on, the title of the window will be set to the value of
         'titlestring' (if it is not empty), or to:
-        	filename [+=-] (path) - NVIM
+        	filename [+=-] (path) - Nvim
         Where:
         	filename	the name of the file being edited
         	-		indicates the file cannot be modified, 'ma' off
@@ -9055,11 +9055,11 @@ return {
         	=		indicates the file is read-only
         	=+		indicates the file is read-only and modified
         	(path)		is the path of the file being edited
-        	- NVIM		the server name |v:servername| or "NVIM"
+        	- Nvim		the server name |v:servername| or "Nvim"
       ]=],
       full_name = 'title',
       scope = { 'global' },
-      short_desc = N_('Vim set the title of the window'),
+      short_desc = N_('set the title of the window'),
       type = 'boolean',
       varname = 'p_title',
     },

src/nvim/os/env.c

@@ -344,7 +344,7 @@ char *os_getenvname_at_index(size_t index)
 #endif
 }
 
-/// Get the process ID of the Neovim process.
+/// Get the process ID of the Nvim process.
 ///
 /// @return the process ID.
 int64_t os_get_pid(void)

src/nvim/os/input.c

@@ -33,12 +33,6 @@
 #define READ_BUFFER_SIZE 0xfff
 #define INPUT_BUFFER_SIZE ((READ_BUFFER_SIZE * 4) + MAX_KEY_CODE_LEN)
 
-typedef enum {
-  kInputNone,
-  kInputAvail,
-  kInputEof,
-} InbufPollResult;
-
 static RStream read_stream = { .s.closed = true };  // Input before UI starts.
 static char input_buffer[INPUT_BUFFER_SIZE];
 static char *input_read_pos = input_buffer;
@@ -84,57 +78,76 @@ static void cursorhold_event(void **argv)
 static void create_cursorhold_event(bool events_enabled)
 {
   // If events are enabled and the queue has any items, this function should not
-  // have been called (inbuf_poll would return kInputAvail).
+  // have been called (`inbuf_poll` would return `kTrue`).
   // TODO(tarruda): Cursorhold should be implemented as a timer set during the
   // `state_check` callback for the states where it can be triggered.
   assert(!events_enabled || multiqueue_empty(main_loop.events));
   multiqueue_put(main_loop.events, cursorhold_event, NULL);
 }
 
-static void restart_cursorhold_wait(int tb_change_cnt)
+static void reset_cursorhold_wait(int tb_change_cnt)
 {
   cursorhold_time = 0;
   cursorhold_tb_change_cnt = tb_change_cnt;
 }
 
-/// Low level input function
+/// Reads OS input into `buf`, and consumes pending events while waiting (if `ms != 0`).
 ///
-/// Wait until either the input buffer is non-empty or, if `events` is not NULL
-/// until `events` is non-empty.
-int os_inchar(uint8_t *buf, int maxlen, int ms, int tb_change_cnt, MultiQueue *events)
+/// - Consumes available input received from the OS.
+/// - Consumes pending events.
+/// - Manages CursorHold events.
+/// - Handles EOF conditions.
+///
+/// Originally based on the Vim `mch_inchar` function.
+///
+/// @param buf Buffer to store consumed input.
+/// @param maxlen Maximum bytes to read into `buf`, or 0 to skip reading.
+/// @param ms Timeout in milliseconds. -1 for indefinite wait, 0 for no wait.
+/// @param tb_change_cnt Used to detect when typeahead changes.
+/// @param events (optional) Events to process.
+/// @return Bytes read into buf, or 0 if no input was read
+int input_get(uint8_t *buf, int maxlen, int ms, int tb_change_cnt, MultiQueue *events)
 {
   // This check is needed so that feeding typeahead from RPC can prevent CursorHold.
   if (tb_change_cnt != cursorhold_tb_change_cnt) {
-    restart_cursorhold_wait(tb_change_cnt);
+    reset_cursorhold_wait(tb_change_cnt);
   }
 
-  if (maxlen && input_available()) {
-    restart_cursorhold_wait(tb_change_cnt);
-    size_t to_read = MIN((size_t)maxlen, input_available());
-    memcpy(buf, input_read_pos, to_read);
-    input_read_pos += to_read;
-    return (int)to_read;
-  }
+#define TRY_READ() \
+  do { \
+    if (maxlen && input_available()) { \
+      reset_cursorhold_wait(tb_change_cnt); \
+      assert(maxlen >= 0); \
+      size_t to_read = MIN((size_t)maxlen, input_available()); \
+      memcpy(buf, input_read_pos, to_read); \
+      input_read_pos += to_read; \
+      /* This is safe because INPUT_BUFFER_SIZE fits in an int. */ \
+      assert(to_read <= INT_MAX); \
+      return (int)to_read; \
+    } \
+  } while (0)
+
+  TRY_READ();
 
   // No risk of a UI flood, so disable CTRL-C "interrupt" behavior if it's mapped.
   if ((mapped_ctrl_c | curbuf->b_mapped_ctrl_c) & get_real_state()) {
     ctrl_c_interrupts = false;
   }
 
-  InbufPollResult result;
+  TriState result;  ///< inbuf_poll result.
   if (ms >= 0) {
-    if ((result = inbuf_poll(ms, events)) == kInputNone) {
+    if ((result = inbuf_poll(ms, events)) == kFalse) {
       return 0;
     }
   } else {
     uint64_t wait_start = os_hrtime();
     cursorhold_time = MIN(cursorhold_time, (int)p_ut);
-    if ((result = inbuf_poll((int)p_ut - cursorhold_time, events)) == kInputNone) {
+    if ((result = inbuf_poll((int)p_ut - cursorhold_time, events)) == kFalse) {
       if (read_stream.s.closed && silent_mode) {
         // Drained eventloop & initial input; exit silent/batch-mode (-es/-Es).
         read_error_exit();
       }
-      restart_cursorhold_wait(tb_change_cnt);
+      reset_cursorhold_wait(tb_change_cnt);
       if (trigger_cursorhold() && !typebuf_changed(tb_change_cnt)) {
         create_cursorhold_event(events == main_loop.events);
       } else {
@@ -153,32 +166,26 @@ int os_inchar(uint8_t *buf, int maxlen, int ms, int tb_change_cnt, MultiQueue *e
     return 0;
   }
 
-  if (maxlen && input_available()) {
-    restart_cursorhold_wait(tb_change_cnt);
-    // Safe to convert `to_read` to int, it will never overflow since
-    // INPUT_BUFFER_SIZE fits in an int
-    size_t to_read = MIN((size_t)maxlen, input_available());
-    memcpy(buf, input_read_pos, to_read);
-    input_read_pos += to_read;
-    return (int)to_read;
-  }
+  TRY_READ();
 
   // If there are events, return the keys directly
   if (maxlen && pending_events(events)) {
     return push_event_key(buf, maxlen);
   }
 
-  if (result == kInputEof) {
+  if (result == kNone) {
     read_error_exit();
   }
 
   return 0;
+
+#undef TRY_READ
 }
 
 // Check if a character is available for reading
 bool os_char_avail(void)
 {
-  return inbuf_poll(0, NULL) == kInputAvail;
+  return inbuf_poll(0, NULL) == kTrue;
 }
 
 /// Poll for fast events. `got_int` will be set to `true` if CTRL-C was typed.
@@ -463,15 +470,22 @@ bool input_blocking(void)
   return blocking;
 }
 
-// This is a replacement for the old `WaitForChar` function in os_unix.c
-static InbufPollResult inbuf_poll(int ms, MultiQueue *events)
+/// Checks for (but does not read) available input, and consumes `main_loop.events` while waiting.
+///
+/// @param ms Timeout in milliseconds. -1 for indefinite wait, 0 for no wait.
+/// @param events (optional) Queue to check for pending events.
+/// @return TriState:
+///   - kTrue: Input/events available
+///   - kFalse: No input/events
+///   - kNone: EOF reached on the input stream
+static TriState inbuf_poll(int ms, MultiQueue *events)
 {
   if (os_input_ready(events)) {
-    return kInputAvail;
+    return kTrue;
   }
 
   if (do_profiling == PROF_YES && ms) {
-    prof_inchar_enter();
+    prof_input_start();
   }
 
   if ((ms == -1 || ms > 0) && events != main_loop.events && !input_eof) {
@@ -479,20 +493,18 @@ static InbufPollResult inbuf_poll(int ms, MultiQueue *events)
     blocking = true;
     multiqueue_process_events(ch_before_blocking_events);
   }
-  DLOG("blocking... events_enabled=%d events_pending=%d", events != NULL,
-       events && !multiqueue_empty(events));
-  LOOP_PROCESS_EVENTS_UNTIL(&main_loop, NULL, ms,
-                            os_input_ready(events) || input_eof);
+  DLOG("blocking... events=%s", !!events ? "true" : "false");
+  LOOP_PROCESS_EVENTS_UNTIL(&main_loop, NULL, ms, os_input_ready(events) || input_eof);
   blocking = false;
 
   if (do_profiling == PROF_YES && ms) {
-    prof_inchar_exit();
+    prof_input_end();
   }
 
   if (os_input_ready(events)) {
-    return kInputAvail;
+    return kTrue;
   }
-  return input_eof ? kInputEof : kInputNone;
+  return input_eof ? kNone : kFalse;
 }
 
 static size_t input_read_cb(RStream *stream, const char *buf, size_t c, void *data, bool at_eof)
@@ -533,8 +545,8 @@ static void process_ctrl_c(void)
   }
 }
 
-// Helper function used to push bytes from the 'event' key sequence partially
-// between calls to os_inchar when maxlen < 3
+/// Pushes bytes from the "event" key sequence (KE_EVENT) partially between calls to input_get when
+/// `maxlen < 3`.
 static int push_event_key(uint8_t *buf, int maxlen)
 {
   static const uint8_t key[3] = { K_SPECIAL, KS_EXTRA, KE_EVENT };

src/nvim/os/proc.c

@@ -37,24 +37,24 @@
 
 #include "nvim/log.h"
 #include "nvim/memory.h"
-#include "nvim/os/process.h"
+#include "nvim/os/proc.h"
 
 #ifdef MSWIN
 # include "nvim/api/private/helpers.h"
 #endif
 
 #ifdef INCLUDE_GENERATED_DECLARATIONS
-# include "os/process.c.generated.h"
+# include "os/proc.c.generated.h"
 #endif
 
 #ifdef MSWIN
-static bool os_proc_tree_kill_rec(HANDLE process, int sig)
+static bool os_proc_tree_kill_rec(HANDLE proc, int sig)
 {
-  if (process == NULL) {
+  if (proc == NULL) {
     return false;
   }
   PROCESSENTRY32 pe;
-  DWORD pid = GetProcessId(process);
+  DWORD pid = GetProcessId(proc);
 
   if (pid != 0) {
     HANDLE h = CreateToolhelp32Snapshot(TH32CS_SNAPPROCESS, 0);
@@ -77,7 +77,7 @@ static bool os_proc_tree_kill_rec(HANDLE process, int sig)
   }
 
 theend:
-  return (bool)TerminateProcess(process, (unsigned)sig);
+  return (bool)TerminateProcess(proc, (unsigned)sig);
 }
 /// Kills process `pid` and its descendants recursively.
 bool os_proc_tree_kill(int pid, int sig)

src/nvim/os/proc.h

@@ -7,5 +7,5 @@
 #endif
 
 #ifdef INCLUDE_GENERATED_DECLARATIONS
-# include "os/process.h.generated.h"
+# include "os/proc.h.generated.h"
 #endif

src/nvim/os/pty_conpty_win.c

@@ -143,7 +143,7 @@ finished:
   return conpty_object;
 }
 
-bool os_conpty_spawn(conpty_t *conpty_object, HANDLE *process_handle, wchar_t *name,
+bool os_conpty_spawn(conpty_t *conpty_object, HANDLE *proc_handle, wchar_t *name,
                      wchar_t *cmd_line, wchar_t *cwd, wchar_t *env)
 {
   PROCESS_INFORMATION pi = { 0 };
@@ -159,7 +159,7 @@ bool os_conpty_spawn(conpty_t *conpty_object, HANDLE *process_handle, wchar_t *n
                       &pi)) {
     return false;
   }
-  *process_handle = pi.hProcess;
+  *proc_handle = pi.hProcess;
   return true;
 }
 

src/nvim/os/pty_proc.h

@@ -0,0 +1,7 @@
+#pragma once
+
+#ifdef MSWIN
+# include "nvim/os/pty_proc_win.h"
+#else
+# include "nvim/os/pty_proc_unix.h"
+#endif

src/nvim/os/pty_proc_unix.c

@@ -34,16 +34,16 @@
 #include "nvim/eval/typval.h"
 #include "nvim/event/defs.h"
 #include "nvim/event/loop.h"
-#include "nvim/event/process.h"
+#include "nvim/event/proc.h"
 #include "nvim/log.h"
 #include "nvim/os/fs.h"
 #include "nvim/os/os_defs.h"
-#include "nvim/os/pty_process.h"
-#include "nvim/os/pty_process_unix.h"
+#include "nvim/os/pty_proc.h"
+#include "nvim/os/pty_proc_unix.h"
 #include "nvim/types_defs.h"
 
 #ifdef INCLUDE_GENERATED_DECLARATIONS
-# include "os/pty_process_unix.c.generated.h"
+# include "os/pty_proc_unix.c.generated.h"
 #endif
 
 #if defined(__sun) && !defined(HAVE_FORKPTY)
@@ -158,7 +158,7 @@ static pid_t forkpty(int *amaster, char *name, struct termios *termp, struct win
 #endif
 
 /// @returns zero on success, or negative error code
-int pty_process_spawn(PtyProcess *ptyproc)
+int pty_proc_spawn(PtyProc *ptyproc)
   FUNC_ATTR_NONNULL_ALL
 {
   // termios initialized at first use
@@ -168,7 +168,7 @@ int pty_process_spawn(PtyProcess *ptyproc)
   }
 
   int status = 0;  // zero or negative error code (libuv convention)
-  Process *proc = (Process *)ptyproc;
+  Proc *proc = (Proc *)ptyproc;
   assert(proc->err.s.closed);
   uv_signal_start(&proc->loop->children_watcher, chld_handler, SIGCHLD);
   ptyproc->winsize = (struct winsize){ ptyproc->height, ptyproc->width, 0, 0 };
@@ -224,29 +224,29 @@ error:
   return status;
 }
 
-const char *pty_process_tty_name(PtyProcess *ptyproc)
+const char *pty_proc_tty_name(PtyProc *ptyproc)
 {
   return ptsname(ptyproc->tty_fd);
 }
 
-void pty_process_resize(PtyProcess *ptyproc, uint16_t width, uint16_t height)
+void pty_proc_resize(PtyProc *ptyproc, uint16_t width, uint16_t height)
   FUNC_ATTR_NONNULL_ALL
 {
   ptyproc->winsize = (struct winsize){ height, width, 0, 0 };
   ioctl(ptyproc->tty_fd, TIOCSWINSZ, &ptyproc->winsize);
 }
 
-void pty_process_close(PtyProcess *ptyproc)
+void pty_proc_close(PtyProc *ptyproc)
   FUNC_ATTR_NONNULL_ALL
 {
-  pty_process_close_master(ptyproc);
-  Process *proc = (Process *)ptyproc;
+  pty_proc_close_master(ptyproc);
+  Proc *proc = (Proc *)ptyproc;
   if (proc->internal_close_cb) {
     proc->internal_close_cb(proc);
   }
 }
 
-void pty_process_close_master(PtyProcess *ptyproc) FUNC_ATTR_NONNULL_ALL
+void pty_proc_close_master(PtyProc *ptyproc) FUNC_ATTR_NONNULL_ALL
 {
   if (ptyproc->tty_fd >= 0) {
     close(ptyproc->tty_fd);
@@ -254,12 +254,12 @@ void pty_process_close_master(PtyProcess *ptyproc) FUNC_ATTR_NONNULL_ALL
   }
 }
 
-void pty_process_teardown(Loop *loop)
+void pty_proc_teardown(Loop *loop)
 {
   uv_signal_stop(&loop->children_watcher);
 }
 
-static void init_child(PtyProcess *ptyproc)
+static void init_child(PtyProc *ptyproc)
   FUNC_ATTR_NONNULL_ALL
 {
 #if defined(HAVE__NSGETENVIRON)
@@ -277,13 +277,13 @@ static void init_child(PtyProcess *ptyproc)
   signal(SIGTERM, SIG_DFL);
   signal(SIGALRM, SIG_DFL);
 
-  Process *proc = (Process *)ptyproc;
+  Proc *proc = (Proc *)ptyproc;
   if (proc->cwd && os_chdir(proc->cwd) != 0) {
     ELOG("chdir(%s) failed: %s", proc->cwd, strerror(errno));
     return;
   }
 
-  const char *prog = process_get_exepath(proc);
+  const char *prog = proc_get_exepath(proc);
 
   assert(proc->env);
   environ = tv_dict_to_env(proc->env);
@@ -388,7 +388,7 @@ static void chld_handler(uv_signal_t *handle, int signum)
   Loop *loop = handle->loop->data;
 
   kl_iter(WatcherPtr, loop->children, current) {
-    Process *proc = (*current)->data;
+    Proc *proc = (*current)->data;
     do {
       pid = waitpid(proc->pid, &stat, WNOHANG);
     } while (pid < 0 && errno == EINTR);
@@ -406,10 +406,10 @@ static void chld_handler(uv_signal_t *handle, int signum)
   }
 }
 
-PtyProcess pty_process_init(Loop *loop, void *data)
+PtyProc pty_proc_init(Loop *loop, void *data)
 {
-  PtyProcess rv;
-  rv.process = process_init(loop, kProcessTypePty, data);
+  PtyProc rv;
+  rv.proc = proc_init(loop, kProcTypePty, data);
   rv.width = 80;
   rv.height = 24;
   rv.tty_fd = -1;

src/nvim/os/pty_proc_unix.h

@@ -1,5 +1,5 @@
 #pragma once
-// IWYU pragma: private, include "nvim/os/pty_process.h"
+// IWYU pragma: private, include "nvim/os/pty_proc.h"
 
 #include <stdint.h>
 #include <sys/ioctl.h>
@@ -7,12 +7,12 @@
 #include "nvim/event/defs.h"
 
 typedef struct {
-  Process process;
+  Proc proc;
   uint16_t width, height;
   struct winsize winsize;
   int tty_fd;
-} PtyProcess;
+} PtyProc;
 
 #ifdef INCLUDE_GENERATED_DECLARATIONS
-# include "os/pty_process_unix.h.generated.h"
+# include "os/pty_proc_unix.h.generated.h"
 #endif

src/nvim/os/pty_proc_win.c

@@ -10,20 +10,20 @@
 #include "nvim/memory.h"
 #include "nvim/os/os.h"
 #include "nvim/os/pty_conpty_win.h"
-#include "nvim/os/pty_process_win.h"
+#include "nvim/os/pty_proc_win.h"
 
 #ifdef INCLUDE_GENERATED_DECLARATIONS
-# include "os/pty_process_win.c.generated.h"
+# include "os/pty_proc_win.c.generated.h"
 #endif
 
-static void CALLBACK pty_process_finish1(void *context, BOOLEAN unused)
+static void CALLBACK pty_proc_finish1(void *context, BOOLEAN unused)
   FUNC_ATTR_NONNULL_ALL
 {
-  PtyProcess *ptyproc = (PtyProcess *)context;
-  Process *proc = (Process *)ptyproc;
+  PtyProc *ptyproc = (PtyProc *)context;
+  Proc *proc = (Proc *)ptyproc;
 
   os_conpty_free(ptyproc->conpty);
-  // NB: pty_process_finish1() is called on a separate thread,
+  // NB: pty_proc_finish1() is called on a separate thread,
   // but the timer only works properly if it's started by the main thread.
   loop_schedule_fast(proc->loop, event_create(start_wait_eof_timer, ptyproc));
 }
@@ -31,7 +31,7 @@ static void CALLBACK pty_process_finish1(void *context, BOOLEAN unused)
 static void start_wait_eof_timer(void **argv)
   FUNC_ATTR_NONNULL_ALL
 {
-  PtyProcess *ptyproc = (PtyProcess *)argv[0];
+  PtyProc *ptyproc = (PtyProc *)argv[0];
 
   if (ptyproc->finish_wait != NULL) {
     uv_timer_start(&ptyproc->wait_eof_timer, wait_eof_timer_cb, 200, 200);
@@ -39,15 +39,15 @@ static void start_wait_eof_timer(void **argv)
 }
 
 /// @returns zero on success, or negative error code.
-int pty_process_spawn(PtyProcess *ptyproc)
+int pty_proc_spawn(PtyProc *ptyproc)
   FUNC_ATTR_NONNULL_ALL
 {
-  Process *proc = (Process *)ptyproc;
+  Proc *proc = (Proc *)ptyproc;
   int status = 0;
   conpty_t *conpty_object = NULL;
   char *in_name = NULL;
   char *out_name = NULL;
-  HANDLE process_handle = NULL;
+  HANDLE proc_handle = NULL;
   uv_connect_t *in_req = NULL;
   uv_connect_t *out_req = NULL;
   wchar_t *cmd_line = NULL;
@@ -69,7 +69,7 @@ int pty_process_spawn(PtyProcess *ptyproc)
     uv_pipe_connect(in_req,
                     &proc->in.uv.pipe,
                     in_name,
-                    pty_process_connect_cb);
+                    pty_proc_connect_cb);
   }
 
   if (!proc->out.s.closed) {
@@ -77,7 +77,7 @@ int pty_process_spawn(PtyProcess *ptyproc)
     uv_pipe_connect(out_req,
                     &proc->out.s.uv.pipe,
                     out_name,
-                    pty_process_connect_cb);
+                    pty_proc_connect_cb);
   }
 
   if (proc->cwd != NULL) {
@@ -105,7 +105,7 @@ int pty_process_spawn(PtyProcess *ptyproc)
   }
 
   if (!os_conpty_spawn(conpty_object,
-                       &process_handle,
+                       &proc_handle,
                        NULL,
                        cmd_line,
                        cwd,
@@ -114,42 +114,42 @@ int pty_process_spawn(PtyProcess *ptyproc)
     status = (int)GetLastError();
     goto cleanup;
   }
-  proc->pid = (int)GetProcessId(process_handle);
+  proc->pid = (int)GetProcessId(proc_handle);
 
   uv_timer_init(&proc->loop->uv, &ptyproc->wait_eof_timer);
   ptyproc->wait_eof_timer.data = (void *)ptyproc;
   if (!RegisterWaitForSingleObject(&ptyproc->finish_wait,
-                                   process_handle,
-                                   pty_process_finish1,
+                                   proc_handle,
+                                   pty_proc_finish1,
                                    ptyproc,
                                    INFINITE,
                                    WT_EXECUTEDEFAULT | WT_EXECUTEONLYONCE)) {
     abort();
   }
 
-  // Wait until pty_process_connect_cb is called.
+  // Wait until pty_proc_connect_cb is called.
   while ((in_req != NULL && in_req->handle != NULL)
          || (out_req != NULL && out_req->handle != NULL)) {
     uv_run(&proc->loop->uv, UV_RUN_ONCE);
   }
 
   ptyproc->conpty = conpty_object;
-  ptyproc->process_handle = process_handle;
+  ptyproc->proc_handle = proc_handle;
   conpty_object = NULL;
-  process_handle = NULL;
+  proc_handle = NULL;
 
 cleanup:
   if (status) {
     // In the case of an error of MultiByteToWideChar or CreateProcessW.
-    ELOG("pty_process_spawn(%s): %s: error code: %d",
+    ELOG("pty_proc_spawn(%s): %s: error code: %d",
          proc->argv[0], emsg, status);
     status = os_translate_sys_error(status);
   }
   os_conpty_free(conpty_object);
   xfree(in_name);
   xfree(out_name);
-  if (process_handle != NULL) {
-    CloseHandle(process_handle);
+  if (proc_handle != NULL) {
+    CloseHandle(proc_handle);
   }
   xfree(in_req);
   xfree(out_req);
@@ -159,32 +159,32 @@ cleanup:
   return status;
 }
 
-const char *pty_process_tty_name(PtyProcess *ptyproc)
+const char *pty_proc_tty_name(PtyProc *ptyproc)
 {
   return "?";
 }
 
-void pty_process_resize(PtyProcess *ptyproc, uint16_t width, uint16_t height)
+void pty_proc_resize(PtyProc *ptyproc, uint16_t width, uint16_t height)
   FUNC_ATTR_NONNULL_ALL
 {
   os_conpty_set_size(ptyproc->conpty, width, height);
 }
 
-void pty_process_close(PtyProcess *ptyproc)
+void pty_proc_close(PtyProc *ptyproc)
   FUNC_ATTR_NONNULL_ALL
 {
-  Process *proc = (Process *)ptyproc;
+  Proc *proc = (Proc *)ptyproc;
 
-  pty_process_close_master(ptyproc);
+  pty_proc_close_master(ptyproc);
 
   if (ptyproc->finish_wait != NULL) {
     UnregisterWaitEx(ptyproc->finish_wait, NULL);
     ptyproc->finish_wait = NULL;
     uv_close((uv_handle_t *)&ptyproc->wait_eof_timer, NULL);
   }
-  if (ptyproc->process_handle != NULL) {
-    CloseHandle(ptyproc->process_handle);
-    ptyproc->process_handle = NULL;
+  if (ptyproc->proc_handle != NULL) {
+    CloseHandle(ptyproc->proc_handle);
+    ptyproc->proc_handle = NULL;
   }
 
   if (proc->internal_close_cb) {
@@ -192,17 +192,17 @@ void pty_process_close(PtyProcess *ptyproc)
   }
 }
 
-void pty_process_close_master(PtyProcess *ptyproc)
+void pty_proc_close_master(PtyProc *ptyproc)
   FUNC_ATTR_NONNULL_ALL
 {
 }
 
-void pty_process_teardown(Loop *loop)
+void pty_proc_teardown(Loop *loop)
   FUNC_ATTR_NONNULL_ALL
 {
 }
 
-static void pty_process_connect_cb(uv_connect_t *req, int status)
+static void pty_proc_connect_cb(uv_connect_t *req, int status)
   FUNC_ATTR_NONNULL_ALL
 {
   assert(status == 0);
@@ -212,23 +212,23 @@ static void pty_process_connect_cb(uv_connect_t *req, int status)
 static void wait_eof_timer_cb(uv_timer_t *wait_eof_timer)
   FUNC_ATTR_NONNULL_ALL
 {
-  PtyProcess *ptyproc = wait_eof_timer->data;
-  Process *proc = (Process *)ptyproc;
+  PtyProc *ptyproc = wait_eof_timer->data;
+  Proc *proc = (Proc *)ptyproc;
 
   assert(ptyproc->finish_wait != NULL);
   if (proc->out.s.closed || proc->out.did_eof || !uv_is_readable(proc->out.s.uvstream)) {
     uv_timer_stop(&ptyproc->wait_eof_timer);
-    pty_process_finish2(ptyproc);
+    pty_proc_finish2(ptyproc);
   }
 }
 
-static void pty_process_finish2(PtyProcess *ptyproc)
+static void pty_proc_finish2(PtyProc *ptyproc)
   FUNC_ATTR_NONNULL_ALL
 {
-  Process *proc = (Process *)ptyproc;
+  Proc *proc = (Proc *)ptyproc;
 
   DWORD exit_code = 0;
-  GetExitCodeProcess(ptyproc->process_handle, &exit_code);
+  GetExitCodeProcess(ptyproc->proc_handle, &exit_code);
   proc->status = proc->exit_signal ? 128 + proc->exit_signal : (int)exit_code;
 
   proc->internal_exit_cb(proc);
@@ -427,14 +427,14 @@ cleanup:
   return rc;
 }
 
-PtyProcess pty_process_init(Loop *loop, void *data)
+PtyProc pty_proc_init(Loop *loop, void *data)
 {
-  PtyProcess rv;
-  rv.process = process_init(loop, kProcessTypePty, data);
+  PtyProc rv;
+  rv.proc = proc_init(loop, kProcTypePty, data);
   rv.width = 80;
   rv.height = 24;
   rv.conpty = NULL;
   rv.finish_wait = NULL;
-  rv.process_handle = NULL;
+  rv.proc_handle = NULL;
   return rv;
 }

src/nvim/os/pty_proc_win.h

@@ -1,20 +1,20 @@
 #pragma once
-// IWYU pragma: private, include "nvim/os/pty_process.h"
+// IWYU pragma: private, include "nvim/os/pty_proc.h"
 
 #include <uv.h>
 
-#include "nvim/event/process.h"
+#include "nvim/event/proc.h"
 #include "nvim/lib/queue_defs.h"
 #include "nvim/os/pty_conpty_win.h"
 
 typedef struct pty_process {
-  Process process;
+  Proc proc;
   uint16_t width, height;
   conpty_t *conpty;
   HANDLE finish_wait;
-  HANDLE process_handle;
+  HANDLE proc_handle;
   uv_timer_t wait_eof_timer;
-} PtyProcess;
+} PtyProc;
 
 // Structure used by build_cmd_line()
 typedef struct arg_node {
@@ -23,5 +23,5 @@ typedef struct arg_node {
 } ArgNode;
 
 #ifdef INCLUDE_GENERATED_DECLARATIONS
-# include "os/pty_process_win.h.generated.h"
+# include "os/pty_proc_win.h.generated.h"
 #endif

src/nvim/os/pty_process.h

@@ -1,7 +0,0 @@
-#pragma once
-
-#ifdef MSWIN
-# include "nvim/os/pty_process_win.h"
-#else
-# include "nvim/os/pty_process_unix.h"
-#endif

src/nvim/os/shell.c

@@ -14,10 +14,10 @@
 #include "nvim/eval.h"
 #include "nvim/eval/typval_defs.h"
 #include "nvim/event/defs.h"
-#include "nvim/event/libuv_process.h"
+#include "nvim/event/libuv_proc.h"
 #include "nvim/event/loop.h"
 #include "nvim/event/multiqueue.h"
-#include "nvim/event/process.h"
+#include "nvim/event/proc.h"
 #include "nvim/event/rstream.h"
 #include "nvim/event/stream.h"
 #include "nvim/event/wstream.h"
@@ -872,12 +872,12 @@ static int do_os_system(char **argv, const char *input, size_t len, char **outpu
   char prog[MAXPATHL];
   xstrlcpy(prog, argv[0], MAXPATHL);
 
-  LibuvProcess uvproc = libuv_process_init(&main_loop, &buf);
-  Process *proc = &uvproc.process;
+  LibuvProc uvproc = libuv_proc_init(&main_loop, &buf);
+  Proc *proc = &uvproc.proc;
   MultiQueue *events = multiqueue_new_child(main_loop.events);
   proc->events = events;
   proc->argv = argv;
-  int status = process_spawn(proc, has_input, true, true);
+  int status = proc_spawn(proc, has_input, true, true);
   if (status) {
     loop_poll_events(&main_loop, 0);
     // Failed, probably 'shell' is not executable.
@@ -910,7 +910,7 @@ static int do_os_system(char **argv, const char *input, size_t len, char **outpu
 
     if (!wstream_write(&proc->in, input_buffer)) {
       // couldn't write, stop the process and tell the user about it
-      process_stop(proc);
+      proc_stop(proc);
       return -1;
     }
     // close the input stream after everything is written
@@ -927,7 +927,7 @@ static int do_os_system(char **argv, const char *input, size_t len, char **outpu
     msg_no_more = true;
     lines_left = -1;
   }
-  int exitcode = process_wait(proc, -1, NULL);
+  int exitcode = proc_wait(proc, -1, NULL);
   if (!got_int && out_data_decide_throttle(0)) {
     // Last chunk of output was skipped; display it now.
     out_data_ring(NULL, SIZE_MAX);
@@ -1292,7 +1292,7 @@ static void shell_write_cb(Stream *stream, void *data, int status)
     msg_schedule_semsg(_("E5677: Error writing input to shell-command: %s"),
                        uv_err_name(status));
   }
-  stream_close(stream, NULL, NULL, false);
+  stream_may_close(stream, false);
 }
 
 /// Applies 'shellxescape' (p_sxe) and 'shellxquote' (p_sxq) to a command.

src/nvim/os/stdpaths.c

@@ -63,22 +63,32 @@ static const char *const xdg_defaults[] = {
 #endif
 };
 
-/// Get the value of $NVIM_APPNAME or "nvim" if not set.
+/// Gets the value of $NVIM_APPNAME, or "nvim" if not set.
+///
+/// @param namelike Write "name-like" value (no path separators) in `NameBuff`.
 ///
 /// @return $NVIM_APPNAME value
-const char *get_appname(void)
+const char *get_appname(bool namelike)
 {
   const char *env_val = os_getenv("NVIM_APPNAME");
   if (env_val == NULL || *env_val == NUL) {
     env_val = "nvim";
   }
+
+  if (namelike) {
+    // Appname may be a relative path, replace slashes to make it name-like.
+    xstrlcpy(NameBuff, env_val, sizeof(NameBuff));
+    memchrsub(NameBuff, '/', '-', sizeof(NameBuff));
+    memchrsub(NameBuff, '\\', '-', sizeof(NameBuff));
+  }
+
   return env_val;
 }
 
 /// Ensure that APPNAME is valid. Must be a name or relative path.
 bool appname_is_valid(void)
 {
-  const char *appname = get_appname();
+  const char *appname = get_appname(false);
   if (path_is_absolute(appname)
       // TODO(justinmk): on Windows, path_is_absolute says "/" is NOT absolute. Should it?
       || strequal(appname, "/")
@@ -193,7 +203,7 @@ char *get_xdg_home(const XDGVarType idx)
   FUNC_ATTR_WARN_UNUSED_RESULT
 {
   char *dir = stdpaths_get_xdg_var(idx);
-  const char *appname = get_appname();
+  const char *appname = get_appname(false);
   size_t appname_len = strlen(appname);
   assert(appname_len < (IOSIZE - sizeof("-data")));
 

src/nvim/profile.c

@@ -383,19 +383,19 @@ void set_context_in_profile_cmd(expand_T *xp, const char *arg)
   xp->xp_context = EXPAND_NOTHING;
 }
 
-static proftime_T inchar_time;
+static proftime_T wait_time;
 
 /// Called when starting to wait for the user to type a character.
-void prof_inchar_enter(void)
+void prof_input_start(void)
 {
-  inchar_time = profile_start();
+  wait_time = profile_start();
 }
 
 /// Called when finished waiting for the user to type a character.
-void prof_inchar_exit(void)
+void prof_input_end(void)
 {
-  inchar_time = profile_end(inchar_time);
-  profile_set_wait(profile_add(profile_get_wait(), inchar_time));
+  wait_time = profile_end(wait_time);
+  profile_set_wait(profile_add(profile_get_wait(), wait_time));
 }
 
 /// @return  true when a function defined in the current script should be
@@ -950,8 +950,8 @@ void time_msg(const char *mesg, const proftime_T *start)
 /// Initializes the `time_fd` stream for the --startuptime report.
 ///
 /// @param fname startuptime report file path
-/// @param process_name name of the current Nvim process to write in the report.
-void time_init(const char *fname, const char *process_name)
+/// @param proc_name name of the current Nvim process to write in the report.
+void time_init(const char *fname, const char *proc_name)
 {
   const size_t bufsize = 8192;  // Big enough for the entire --startuptime report.
   time_fd = fopen(fname, "a");
@@ -972,7 +972,7 @@ void time_init(const char *fname, const char *process_name)
     semsg("time_init: setvbuf failed: %d %s", r, uv_err_name(r));
     return;
   }
-  fprintf(time_fd, "--- Startup times for process: %s ---\n", process_name);
+  fprintf(time_fd, "--- Startup times for process: %s ---\n", proc_name);
 }
 
 /// Flushes the startuptimes to disk for the current process

src/nvim/quickfix.c

@@ -6875,7 +6875,8 @@ bool set_ref_in_quickfix(int copyID)
       // In a location list window and none of the other windows is
       // referring to this location list. Mark the location list
       // context as still in use.
-      if (mark_quickfix_ctx(win->w_llist_ref, copyID)) {
+      if (mark_quickfix_ctx(win->w_llist_ref, copyID)
+          || mark_quickfix_user_data(win->w_llist_ref, copyID)) {
         return true;
       }
     }

src/nvim/runtime.c

@@ -1559,7 +1559,7 @@ static inline char *add_env_sep_dirs(char *dest, const char *const val, const ch
     return dest;
   }
   const void *iter = NULL;
-  const char *appname = get_appname();
+  const char *appname = get_appname(false);
   const size_t appname_len = strlen(appname);
   do {
     size_t dir_len;
@@ -1626,7 +1626,7 @@ static inline char *add_dir(char *dest, const char *const dir, const size_t dir_
     if (!after_pathsep(dest - 1, dest)) {
       *dest++ = PATHSEP;
     }
-    const char *appname = get_appname();
+    const char *appname = get_appname(false);
     size_t appname_len = strlen(appname);
     assert(appname_len < (IOSIZE - sizeof("-data")));
     xmemcpyz(IObuff, appname, appname_len);
@@ -1697,7 +1697,7 @@ char *runtimepath_default(bool clean_arg)
   size_t config_len = 0;
   size_t vimruntime_len = 0;
   size_t libdir_len = 0;
-  const char *appname = get_appname();
+  const char *appname = get_appname(false);
   size_t appname_len = strlen(appname);
   if (data_home != NULL) {
     data_len = strlen(data_home);

src/nvim/state.c

@@ -74,10 +74,9 @@ getkey:
       }
       // Flush screen updates before blocking.
       ui_flush();
-      // Call `os_inchar` directly to block for events or user input without
-      // consuming anything from `input_buffer`(os/input.c) or calling the
-      // mapping engine.
-      os_inchar(NULL, 0, -1, typebuf.tb_change_cnt, main_loop.events);
+      // Call `input_get` directly to block for events or user input without consuming anything from
+      // `os/input.c:input_buffer` or calling the mapping engine.
+      input_get(NULL, 0, -1, typebuf.tb_change_cnt, main_loop.events);
       // If an event was put into the queue, we send K_EVENT directly.
       if (!input_available() && !multiqueue_empty(main_loop.events)) {
         key = K_EVENT;

src/nvim/ui_client.c

@@ -22,6 +22,7 @@
 #include "nvim/memory_defs.h"
 #include "nvim/msgpack_rpc/channel.h"
 #include "nvim/msgpack_rpc/channel_defs.h"
+#include "nvim/os/os.h"
 #include "nvim/os/os_defs.h"
 #include "nvim/tui/tui.h"
 #include "nvim/tui/tui_defs.h"
@@ -126,6 +127,11 @@ void ui_client_run(bool remote_ui)
 
   ui_client_attach(width, height, term, rgb);
 
+  // TODO(justinmk): this is for log_spec. Can remove this after nvim_log #7062 is merged.
+  if (os_env_exists("__NVIM_TEST_LOG")) {
+    ELOG("test log message");
+  }
+
   // os_exit() will be invoked when the client channel detaches
   while (true) {
     LOOP_PROCESS_EVENTS(&main_loop, resize_events, -1);

src/nvim/ui_client.h

@@ -14,7 +14,7 @@ EXTERN size_t grid_line_buf_size INIT( = 0);
 EXTERN schar_T *grid_line_buf_char INIT( = NULL);
 EXTERN sattr_T *grid_line_buf_attr INIT( = NULL);
 
-// ID of the ui client channel. If zero, the client is not running.
+// Client-side UI channel. Zero during early startup or if not a (--remote-ui) UI client.
 EXTERN uint64_t ui_client_channel_id INIT( = 0);
 
 // exit status from embedded nvim process

test/README.md

@@ -103,7 +103,7 @@ Debugging tests
     DBG 2022-06-15T18:37:45.227 T57.58016.0/c UI: stop
     INF 2022-06-15T18:37:45.227 T57.58016.0/c os_exit:595: Nvim exit: 0
     DBG 2022-06-15T18:37:45.229 T57.58016.0   read_cb:118: closing Stream (0x7fd5d700ea18): EOF (end of file)
-    INF 2022-06-15T18:37:45.229 T57.58016.0   on_process_exit:400: exited: pid=58017 status=0 stoptime=0
+    INF 2022-06-15T18:37:45.229 T57.58016.0   on_proc_exit:400: exited: pid=58017 status=0 stoptime=0
   ```
 - You can set `$GDB` to [run functional tests under gdbserver](https://github.com/neovim/neovim/pull/1527):
 

test/client/session.lua

@@ -114,6 +114,7 @@ function Session:request(method, ...)
   return true, result
 end
 
+--- Runs the event loop.
 function Session:run(request_cb, notification_cb, setup_cb, timeout)
   local function on_request(method, args, response)
     coroutine_exec(request_cb, method, args, function(status, result, flag)