Commit: runtime(syntax): Add Regexp default highlight group

[Christian Brabandt]

runtime(syntax): Add Regexp default highlight group

Commit: https://github.com/vim/vim/commit/5cbadec2e63b0e38c7c1fe4ae9c07b07123299b8
Author: Doug Kearns <dougk...@gmail.com>
Date: Tue Aug 25 20:28:49 2026 +0000

runtime(syntax): Add Regexp default highlight group

Most syntax files currently use String or Normal for highlighting
regular expression literals; these should have a dedicated group.

closes: #21141

Signed-off-by: Doug Kearns <dougk...@gmail.com>
Signed-off-by: Christian Brabandt <c...@256bit.org>

diff --git a/runtime/doc/syntax.txt b/runtime/doc/syntax.txt
index 1f63ccd4a..f04300148 100644
--- a/runtime/doc/syntax.txt
+++ b/runtime/doc/syntax.txt
@@ -1,4 +1,4 @@
-*syntax.txt* For Vim version 9.2. Last change: 2026 Aug 13
+*syntax.txt* For Vim version 9.2. Last change: 2026 Aug 24


VIM REFERENCE MANUAL by Bram Moolenaar
@@ -230,6 +230,7 @@ you can see the actual color, except for "Ignore"):
Character a character constant: 'c', '
'
Number a number constant: 234, 0xff
Boolean a boolean constant: TRUE, false
+ Regexp a regular expression constant: /ab*c/
Float a floating point constant: 2.3e10

*Identifier any variable name
diff --git a/runtime/syntax/help.vim b/runtime/syntax/help.vim
index cd962886a..9eae50a9a 100644
--- a/runtime/syntax/help.vim
+++ b/runtime/syntax/help.vim
@@ -2,7 +2,7 @@
" Language: Vim help file
" Maintainer: Doug Kearns <dougk...@gmail.com>
" Former Maintainer: Bram Moolenaar <Br...@vim.org>
-" Last Change: 2026 Aug 02
+" Last Change: 2026 Aug 24

" Quit when a (custom) syntax file was already loaded
if exists("b:current_syntax")
@@ -177,6 +177,7 @@ syn match helpString " [* ]String \+[a-z].*"
syn match helpCharacter " [* ]Character \+[a-z].*"
syn match helpNumber " [* ]Number \+[a-z].*"
syn match helpBoolean " [* ]Boolean \+[a-z].*"
+syn match helpRegexp " [* ]Regexp \+[a-z].*"
syn match helpFloat " [* ]Float \+[a-z].*"
syn match helpIdentifier " [* ]Identifier \+[a-z].*"
syn match helpFunction " [* ]Function \+[a-z].*"
@@ -271,6 +272,7 @@ hi def link helpString String
hi def link helpCharacter Character
hi def link helpNumber Number
hi def link helpBoolean Boolean
+hi def link helpRegexp Regexp
hi def link helpFloat Float
hi def link helpIdentifier Identifier
hi def link helpFunction Function
diff --git a/runtime/syntax/syncolor.vim b/runtime/syntax/syncolor.vim
index 28324ebe2..2ccb0a4df 100644
--- a/runtime/syntax/syncolor.vim
+++ b/runtime/syntax/syncolor.vim
@@ -1,6 +1,6 @@
" Vim syntax support file
" Maintainer: The Vim Project <https://github.com/vim/vim>
-" Last Change: 2026 Jul 22
+" Last Change: 2026 Aug 24
" Former Maintainer: Bram Moolenaar <Br...@vim.org>

" This file sets up the default methods for highlighting.
@@ -72,6 +72,7 @@ SynLink String Constant
SynLink Character Constant
SynLink Number Constant
SynLink Boolean Constant
+SynLink Regexp Constant
SynLink Float Number
SynLink Function Identifier
SynLink Conditional Statement
diff --git a/runtime/syntax/vim.vim b/runtime/syntax/vim.vim
index 9e553ef35..2fb67f368 100644
--- a/runtime/syntax/vim.vim
+++ b/runtime/syntax/vim.vim
@@ -2,7 +2,7 @@
" Language: Vim script
" Maintainer: Hirohito Higashi <h.east.727 ATMARK gmail.com>
" Doug Kearns <dougk...@gmail.com>
-" Last Change: 2026 Aug 22
+" Last Change: 2026 Aug 24
" Former Maintainer: Charles E. Campbell

" DO NOT CHANGE DIRECTLY.
@@ -180,7 +180,7 @@ syn match vimUserAutoEvent contained "\<\h\w*\>" skipwhite skipnl nextgroup=vimU

" Highlight commonly used Groupnames {{{2
" GEN_SYN_VIM: vimGroup, START_STR='syn keyword vimGroup contained', END_STR=''
-syn keyword vimGroup contained Added Bold BoldItalic Boolean Changed Character Comment Conditional Constant Debug Define Delimiter Error Exception Float Function Identifier Ignore Include Italic Keyword Label Macro Number Operator PreCondit PreProc Removed Repeat Special SpecialChar SpecialComment Statement StorageClass String Structure Tag Todo Type Typedef Underlined
+syn keyword vimGroup contained Added Bold BoldItalic Boolean Changed Character Comment Conditional Constant Debug Define Delimiter Error Exception Float Function Identifier Ignore Include Italic Keyword Label Macro Number Operator PreCondit PreProc Regexp Removed Repeat Special SpecialChar SpecialComment Statement StorageClass String Structure Tag Todo Type Typedef Underlined

" Default highlighting groups {{{2
" GEN_SYN_VIM: vimHLGroup, START_STR='syn keyword vimHLGroup contained', END_STR=''