Commit: runtime(sudoers): highlight usernames with hyphens, digits, underscores

[Christian Brabandt]

runtime(sudoers): highlight usernames with hyphens, digits, underscores

Commit: https://github.com/vim/vim/commit/a39d7c26171d1629628788e80a7b062f8c5103e1
Author: Bozhidar Batsov <bozh...@batsov.dev>
Date: Fri Feb 13 15:49:02 2026 +0000

runtime(sudoers): highlight usernames with hyphens, digits, underscores

The username/group/netgroup patterns used \l\+ which only matched
lowercase letters. Linux usernames commonly contain hyphens, digits,
and underscores (e.g. www-data, deploy01, test_user).

Update the pattern to \l[-a-z0-9_]* to allow matching the additional
characters "-_" and numbers.

fixes: #18963
closes: #19396

Signed-off-by: Bozhidar Batsov <bozh...@batsov.dev>
Signed-off-by: Christian Brabandt <c...@256bit.org>

diff --git a/runtime/syntax/sudoers.vim b/runtime/syntax/sudoers.vim
index 4cdf598be..3154614d8 100644
--- a/runtime/syntax/sudoers.vim
+++ b/runtime/syntax/sudoers.vim
@@ -4,8 +4,9 @@
" Previous Maintainer: Nikolai Weibull <n...@bitwi.se>
" Latest Revision: 2024 Sep 02
" Recent Changes: Support for #include and #includedir.
-" Added many new options (Samuel D. Leslie)
-" Update allowed Tag_Spec Runas_Spec syntax items
+" 2018 Aug 28 by Vim project Added many new options (Samuel D. Leslie)
+" 2024 Sep 09 by Vim project Update allowed Tag_Spec Runas_Spec syntax items
+" 2026 Feb 13 by Vim project update regex for matching usernames #19396

if exists("b:current_syntax")
finish
@@ -35,28 +36,28 @@ syn keyword sudoersAlias Host_Alias nextgroup=sudoersHostAlias skip
syn keyword sudoersAlias Cmnd_Alias nextgroup=sudoersCmndAlias skipwhite skipnl

syn match sudoersUserAlias contained '\<\u[A-Z0-9_]*\>' nextgroup=sudoersUserAliasEquals skipwhite skipnl
-syn match sudoersUserNameInList contained '\<\l\+\>' nextgroup=@sudoersUserList skipwhite skipnl
+syn match sudoersUserNameInList contained '\<\l[-a-z0-9_]*\>' nextgroup=@sudoersUserList skipwhite skipnl
syn match sudoersUIDInList contained '#\d\+\>' nextgroup=@sudoersUserList skipwhite skipnl
-syn match sudoersGroupInList contained '%\l\+\>' nextgroup=@sudoersUserList skipwhite skipnl
-syn match sudoersUserNetgroupInList contained '+\l\+\>' nextgroup=@sudoersUserList skipwhite skipnl
+syn match sudoersGroupInList contained '%\l[-a-z0-9_]*\>' nextgroup=@sudoersUserList skipwhite skipnl
+syn match sudoersUserNetgroupInList contained '+\l[-a-z0-9_]*\>' nextgroup=@sudoersUserList skipwhite skipnl
syn match sudoersUserAliasInList contained '\<\u[A-Z0-9_]*\>' nextgroup=@sudoersUserList skipwhite skipnl

-syn match sudoersUserName contained '\<\l\+\>' nextgroup=@sudoersParameter skipwhite skipnl
+syn match sudoersUserName contained '\<\l[-a-z0-9_]*\>' nextgroup=@sudoersParameter skipwhite skipnl
syn match sudoersUID contained '#\d\+\>' nextgroup=@sudoersParameter skipwhite skipnl
-syn match sudoersGroup contained '%\l\+\>' nextgroup=@sudoersParameter skipwhite skipnl
-syn match sudoersUserNetgroup contained '+\l\+\>' nextgroup=@sudoersParameter skipwhite skipnl
+syn match sudoersGroup contained '%\l[-a-z0-9_]*\>' nextgroup=@sudoersParameter skipwhite skipnl
+syn match sudoersUserNetgroup contained '+\l[-a-z0-9_]*\>' nextgroup=@sudoersParameter skipwhite skipnl
syn match sudoersUserAliasRef contained '\<\u[A-Z0-9_]*\>' nextgroup=@sudoersParameter skipwhite skipnl

-syn match sudoersUserNameInSpec contained '\<\l\+\>' nextgroup=@sudoersUserSpec skipwhite skipnl
+syn match sudoersUserNameInSpec contained '\<\l[-a-z0-9_]*\>' nextgroup=@sudoersUserSpec skipwhite skipnl
syn match sudoersUIDInSpec contained '#\d\+\>' nextgroup=@sudoersUserSpec skipwhite skipnl
-syn match sudoersGroupInSpec contained '%\l\+\>' nextgroup=@sudoersUserSpec skipwhite skipnl
-syn match sudoersUserNetgroupInSpec contained '+\l\+\>' nextgroup=@sudoersUserSpec skipwhite skipnl
+syn match sudoersGroupInSpec contained '%\l[-a-z0-9_]*\>' nextgroup=@sudoersUserSpec skipwhite skipnl
+syn match sudoersUserNetgroupInSpec contained '+\l[-a-z0-9_]*\>' nextgroup=@sudoersUserSpec skipwhite skipnl
syn match sudoersUserAliasInSpec contained '\<\u[A-Z0-9_]*\>' nextgroup=@sudoersUserSpec skipwhite skipnl

-syn match sudoersUserNameInRunas contained '\<\l\+\>' nextgroup=@sudoersUserRunas skipwhite skipnl
+syn match sudoersUserNameInRunas contained '\<\l[-a-z0-9_]*\>' nextgroup=@sudoersUserRunas skipwhite skipnl
syn match sudoersUIDInRunas contained '#\d\+\>' nextgroup=@sudoersUserRunas skipwhite skipnl
-syn match sudoersGroupInRunas contained '%\l\+\>' nextgroup=@sudoersUserRunas skipwhite skipnl
-syn match sudoersUserNetgroupInRunas contained '+\l\+\>' nextgroup=@sudoersUserRunas skipwhite skipnl
+syn match sudoersGroupInRunas contained '%\l[-a-z0-9_]*\>' nextgroup=@sudoersUserRunas skipwhite skipnl
+syn match sudoersUserNetgroupInRunas contained '+\l[-a-z0-9_]*\>' nextgroup=@sudoersUserRunas skipwhite skipnl
syn match sudoersUserAliasInRunas contained '\<\u[A-Z0-9_]*\>' nextgroup=@sudoersUserRunas skipwhite skipnl

syn match sudoersHostAlias contained '\<\u[A-Z0-9_]*\>' nextgroup=sudoersHostAliasEquals skipwhite skipnl