diff --git a/runtime/syntax/generator/vim.vim.base b/runtime/syntax/generator/vim.vim.base
index b3bc5ca..23e3423 100644
--- a/runtime/syntax/generator/vim.vim.base
+++ b/runtime/syntax/generator/vim.vim.base
@@ -2,7 +2,7 @@
 " Language:	   Vim script
 " Maintainer:	   Hirohito Higashi <h.east.727 ATMARK gmail.com>
 "	   Doug Kearns <dougkearns@gmail.com>
-" Last Change:	   2025 Jan 09
+" Last Change:	   2025 Jan 19
 " Former Maintainer: Charles E. Campbell
 
 " DO NOT CHANGE DIRECTLY.
@@ -192,13 +192,13 @@
 " Numbers {{{2
 " =======
 syn case ignore
-syn match	vimNumber	'\<\d\+\%(\.\d\+\%(e[+-]\=\d\+\)\=\)\='	skipwhite nextgroup=vimGlobal,vimSubst1,vimCommand,@vimComment
-syn match	vimNumber	'\<0b[01]\+'			skipwhite nextgroup=vimGlobal,vimSubst1,vimCommand,@vimComment
-syn match	vimNumber	'\<0o\=\o\+'			skipwhite nextgroup=vimGlobal,vimSubst1,vimCommand,@vimComment
-syn match	vimNumber	'\<0x\x\+'			skipwhite nextgroup=vimGlobal,vimSubst1,vimCommand,@vimComment
-syn match	vimNumber	'\<0z\>'			skipwhite nextgroup=vimGlobal,vimSubst1,vimCommand,@vimComment
-syn match	vimNumber	'\<0z\%(\x\x\)\+\%(\.\%(\x\x\)\+\)*'	skipwhite nextgroup=vimGlobal,vimSubst1,vimCommand,@vimComment
-syn match	vimNumber	'\%(^\|\A\)\zs#\x\{6}'		skipwhite nextgroup=vimGlobal,vimSubst1,vimCommand,@vimComment
+syn match	vimNumber	'\<\d\+\%(\.\d\+\%(e[+-]\=\d\+\)\=\)\='	skipwhite nextgroup=vimGlobal,vimSubst1,@vimComment
+syn match	vimNumber	'\<0b[01]\+'			skipwhite nextgroup=vimGlobal,vimSubst1,@vimComment
+syn match	vimNumber	'\<0o\=\o\+'			skipwhite nextgroup=vimGlobal,vimSubst1,@vimComment
+syn match	vimNumber	'\<0x\x\+'			skipwhite nextgroup=vimGlobal,vimSubst1,@vimComment
+syn match	vimNumber	'\<0z\>'			skipwhite nextgroup=vimGlobal,vimSubst1,@vimComment
+syn match	vimNumber	'\<0z\%(\x\x\)\+\%(\.\%(\x\x\)\+\)*'	skipwhite nextgroup=vimGlobal,vimSubst1,@vimComment
+syn match	vimNumber	'\%(^\|\A\)\zs#\x\{6}'		skipwhite nextgroup=vimGlobal,vimSubst1,@vimComment
 syn case match
 
 " All vimCommands are contained by vimIsCommand. {{{2
@@ -281,10 +281,12 @@
 " Operators: {{{2
 " =========
 syn cluster	vimOperGroup	contains=vimEnvvar,vimFunc,vimFuncVar,vimOper,vimOperParen,vimNumber,vimString,vimRegister,@vimContinue,vim9Comment,vimVar,vimBoolean,vimNull
-syn match	vimOper	"\a\@<!!"				skipwhite nextgroup=vimString,vimSpecFile
-syn match	vimOper	"||\|&&\|[-+*/%.]"			skipwhite nextgroup=vimString,vimSpecFile
-syn match	vimOper	"\%#=1\(==\|!=\|>=\|<=\|=\~\|!\~\|>\|<\|=\|!\~#\)[?#]\{0,2}"	skipwhite nextgroup=vimString,vimSpecFile
-syn match	vimOper	"\(\<is\|\<isnot\)[?#]\{0,2}\>"			skipwhite nextgroup=vimString,vimSpecFile
+syn match	vimOper	"\a\@<!!"			skipwhite nextgroup=vimString,vimSpecFile
+syn match	vimOper	"||\|&&\|[-+*/%.]"		skipwhite nextgroup=vimString,vimSpecFile
+syn match	vimOper	"="			skipwhite nextgroup=vimString,vimSpecFile
+syn match	vimOper	"\%#=1\%(==\|!=\|>=\|<=\|=\~\|!\~\|>\|<\)[?#]\="	skipwhite nextgroup=vimString,vimSpecFile
+syn match	vimOper	"\<is\%(not\)\=\>"		skipwhite nextgroup=vimString,vimSpecFile
+syn match	vimOper	"\<is\%(not\)\=[?#]"		skipwhite nextgroup=vimString,vimSpecFile
 syn region	vimOperParen 	matchgroup=vimParenSep	start="(" end=")" contains=@vimOperGroup
 syn region	vimOperParen	matchgroup=vimSep		start="#\={" end="}" contains=@vimOperGroup nextgroup=vimVar,vimFuncVar
 if !exists("g:vimsyn_noerror") && !exists("g:vimsyn_noopererror")
diff --git a/runtime/syntax/testdir/dumps/vim_expr_01.dump b/runtime/syntax/testdir/dumps/vim_expr_01.dump
index 7dfc6d4..ca2875d 100644
--- a/runtime/syntax/testdir/dumps/vim_expr_01.dump
+++ b/runtime/syntax/testdir/dumps/vim_expr_01.dump
@@ -17,4 +17,4 @@
 |e+0#af5f00255&|c|h|o| +0#0000000&|'+0#e000002&|f|o@1|'+0#e000e06&@1|'+0#e000002&| +0#0000000&@62
 |e+0#af5f00255&|c|h|o| +0#0000000&|'+0#e000002&|f|o@1|'+0#e000e06&@1|b+0#e000002&|a|r|'| +0#0000000&@59
 @75
-@57|1|5|,|1| @9|1|4|%| 
+@57|1|5|,|1| @10|9|%| 
diff --git a/runtime/syntax/testdir/dumps/vim_expr_02.dump b/runtime/syntax/testdir/dumps/vim_expr_02.dump
index 37e5b04..da1a0d9 100644
--- a/runtime/syntax/testdir/dumps/vim_expr_02.dump
+++ b/runtime/syntax/testdir/dumps/vim_expr_02.dump
@@ -17,4 +17,4 @@
 |e+0#af5f00255&|c|h|o| +0#0000000&|$+0#e000002&|'|'+0#e000e06&@1|f+0#e000002&|o@1|'| +0#0000000&@61
 |e+0#af5f00255&|c|h|o| +0#0000000&|$+0#e000002&|'|f|o@1|'+0#e000e06&@1|'+0#e000002&| +0#0000000&@61
 |e+0#af5f00255&|c|h|o| +0#0000000&|$+0#e000002&|'|f|o@1|'+0#e000e06&@1|b+0#e000002&|a|r|'| +0#0000000&@58
-@57|3|2|,|0|-|1| @7|3|6|%| 
+@57|3|2|,|0|-|1| @7|2|3|%| 
diff --git a/runtime/syntax/testdir/dumps/vim_expr_03.dump b/runtime/syntax/testdir/dumps/vim_expr_03.dump
index 178468d..74655c8 100644
--- a/runtime/syntax/testdir/dumps/vim_expr_03.dump
+++ b/runtime/syntax/testdir/dumps/vim_expr_03.dump
@@ -17,4 +17,4 @@
 |e+0#af5f00255&|c|h|o| +0#0000000&@1|0+0#e000002&|o|3|7@1| +0#0000000&@63
 |e+0#af5f00255&|c|h|o| +0#0000000&@1|0+0#e000002&|O|3|7@1| +0#0000000&@63
 |e+0#af5f00255&|c|h|o| +0#0000000&|-+0#af5f00255&|0+0#e000002&|3|7@1| +0#0000000&@64
-@57|5|0|,|1| @9|6|1|%| 
+@57|5|0|,|1| @9|3|9|%| 
diff --git a/runtime/syntax/testdir/dumps/vim_expr_04.dump b/runtime/syntax/testdir/dumps/vim_expr_04.dump
index 1a054e6..c760613 100644
--- a/runtime/syntax/testdir/dumps/vim_expr_04.dump
+++ b/runtime/syntax/testdir/dumps/vim_expr_04.dump
@@ -17,4 +17,4 @@
 |e+0#af5f00255&|c|h|o| +0#0000000&|1+0#e000002&|.|0|E|-|6| +0#0000000&@63
 |e+0#af5f00255&|c|h|o| +0#0000000&|-+0#af5f00255&|3+0#e000002&|.|1|4|1|6|e|+|8@1| +0#0000000&@58
 @75
-@57|6|8|,|1| @9|8|6|%| 
+@57|6|8|,|1| @9|5@1|%| 
diff --git a/runtime/syntax/testdir/dumps/vim_expr_05.dump b/runtime/syntax/testdir/dumps/vim_expr_05.dump
index 2c0a189..53f62dc 100644
--- a/runtime/syntax/testdir/dumps/vim_expr_05.dump
+++ b/runtime/syntax/testdir/dumps/vim_expr_05.dump
@@ -5,16 +5,16 @@
 |e+0#af5f00255&|c|h|o| +0#0000000&|0+0#e000002&|z|F@1|0@1|.|E|D|0|1|.|5|D|A|F| +0#0000000&@53
 >e+0#af5f00255&|c|h|o| +0#0000000&|0+0#e000002&|z|F@1|.|0@1|.|E|D|.|0|1|.|5|D|.|A|F| +0#0000000&@50
 @75
+|"+0#0000e05&| |O|p|e|r|a|t|o|r|s| +0#0000000&@63
 @75
-|"+0#0000e05&| |I|s@1|u|e| |#|1|6|2@1|1| |(|v|i|m|S|t|r|i|n|g| |b|e|c|o|m|e|s| |v|i|m|V|a|r| |w|h|e|n| |p|r|e|c|e|d|e|d| |b|y| |!|)| +0#0000000&@14
-|l+0#af5f00255&|e|t| +0#0000000&|b+0#00e0e07&|a|r| +0#0000000&|=+0#af5f00255&| +0#0000000&|!+0#af5f00255&|'+0#e000002&|g|:|b|a|r|'|-+0#af5f00255&|>|e+0#00e0e07&|x|i|s|t|s|(+0#e000e06&|)| +0#0000000&@46
-@75
-|~+0#4040ff13&| @73
-|~| @73
-|~| @73
-|~| @73
-|~| @73
-|~| @73
-|~| @73
-|~| @73
-| +0#0000000&@56|8|6|,|1| @9|B|o|t| 
+|"+0#0000e05&| |C|o|m|p|a|r|i|s|o|n| |-| |u|s|i|n|g| |'|i|g|n|o|r|c|a|s|e|'| +0#0000000&@42
+|e+0#af5f00255&|c|h|o| +0#0000000&|e+0#00e0e07&|x|p|r| +0#0000000&|=+0#af5f00255&@1| +0#0000000&@4|e+0#00e0e07&|x|p|r| +0#0000000&@53
+|e+0#af5f00255&|c|h|o| +0#0000000&|e+0#00e0e07&|x|p|r| +0#0000000&|!+0#af5f00255&|=| +0#0000000&@4|e+0#00e0e07&|x|p|r| +0#0000000&@53
+|e+0#af5f00255&|c|h|o| +0#0000000&|e+0#00e0e07&|x|p|r| +0#0000000&|>+0#af5f00255&| +0#0000000&@5|e+0#00e0e07&|x|p|r| +0#0000000&@53
+|e+0#af5f00255&|c|h|o| +0#0000000&|e+0#00e0e07&|x|p|r| +0#0000000&|>+0#af5f00255&|=| +0#0000000&@4|e+0#00e0e07&|x|p|r| +0#0000000&@53
+|e+0#af5f00255&|c|h|o| +0#0000000&|e+0#00e0e07&|x|p|r| +0#0000000&|<+0#af5f00255&| +0#0000000&@5|e+0#00e0e07&|x|p|r| +0#0000000&@53
+|e+0#af5f00255&|c|h|o| +0#0000000&|e+0#00e0e07&|x|p|r| +0#0000000&|<+0#af5f00255&|=| +0#0000000&@4|e+0#00e0e07&|x|p|r| +0#0000000&@53
+|e+0#af5f00255&|c|h|o| +0#0000000&|e+0#00e0e07&|x|p|r| +0#0000000&|=+0#af5f00255&|~| +0#0000000&@4|e+0#00e0e07&|x|p|r| +0#0000000&@53
+|e+0#af5f00255&|c|h|o| +0#0000000&|e+0#00e0e07&|x|p|r| +0#0000000&|!+0#af5f00255&|~| +0#0000000&@4|e+0#00e0e07&|x|p|r| +0#0000000&@53
+|e+0#af5f00255&|c|h|o| +0#0000000&|e+0#00e0e07&|x|p|r| +0#0000000&|i+0#af5f00255&|s| +0#0000000&@4|e+0#00e0e07&|x|p|r| +0#0000000&@53
+@57|8|6|,|1| @9|7|1|%| 
diff --git a/runtime/syntax/testdir/dumps/vim_expr_06.dump b/runtime/syntax/testdir/dumps/vim_expr_06.dump
new file mode 100644
index 0000000..9c58105
--- /dev/null
+++ b/runtime/syntax/testdir/dumps/vim_expr_06.dump
@@ -0,0 +1,20 @@
+|e+0#af5f00255#ffffff0|c|h|o| +0#0000000&|e+0#00e0e07&|x|p|r| +0#0000000&|i+0#af5f00255&|s| +0#0000000&@4|e+0#00e0e07&|x|p|r| +0#0000000&@53
+|e+0#af5f00255&|c|h|o| +0#0000000&|e+0#00e0e07&|x|p|r| +0#0000000&|i+0#af5f00255&|s|n|o|t| +0#0000000&@1|e+0#00e0e07&|x|p|r| +0#0000000&@53
+@75
+|"+0#0000e05&| |C|o|m|p|a|r|i|s|o|n| |-| |m|a|t|c|h| |c|a|s|e| +0#0000000&@49
+|e+0#af5f00255&|c|h|o| +0#0000000&|e+0#00e0e07&|x|p|r| +0#0000000&|=+0#af5f00255&@1|#| +0#0000000&@3|e+0#00e0e07&|x|p|r| +0#0000000&@53
+>e+0#af5f00255&|c|h|o| +0#0000000&|e+0#00e0e07&|x|p|r| +0#0000000&|!+0#af5f00255&|=|#| +0#0000000&@3|e+0#00e0e07&|x|p|r| +0#0000000&@53
+|e+0#af5f00255&|c|h|o| +0#0000000&|e+0#00e0e07&|x|p|r| +0#0000000&|>+0#af5f00255&|#| +0#0000000&@4|e+0#00e0e07&|x|p|r| +0#0000000&@53
+|e+0#af5f00255&|c|h|o| +0#0000000&|e+0#00e0e07&|x|p|r| +0#0000000&|>+0#af5f00255&|=|#| +0#0000000&@3|e+0#00e0e07&|x|p|r| +0#0000000&@53
+|e+0#af5f00255&|c|h|o| +0#0000000&|e+0#00e0e07&|x|p|r| +0#0000000&|<+0#af5f00255&|#| +0#0000000&@4|e+0#00e0e07&|x|p|r| +0#0000000&@53
+|e+0#af5f00255&|c|h|o| +0#0000000&|e+0#00e0e07&|x|p|r| +0#0000000&|<+0#af5f00255&|=|#| +0#0000000&@3|e+0#00e0e07&|x|p|r| +0#0000000&@53
+|e+0#af5f00255&|c|h|o| +0#0000000&|e+0#00e0e07&|x|p|r| +0#0000000&|=+0#af5f00255&|~|#| +0#0000000&@3|e+0#00e0e07&|x|p|r| +0#0000000&@53
+|e+0#af5f00255&|c|h|o| +0#0000000&|e+0#00e0e07&|x|p|r| +0#0000000&|!+0#af5f00255&|~|#| +0#0000000&@3|e+0#00e0e07&|x|p|r| +0#0000000&@53
+|e+0#af5f00255&|c|h|o| +0#0000000&|e+0#00e0e07&|x|p|r| +0#0000000&|i+0#af5f00255&|s|#| +0#0000000&@3|e+0#00e0e07&|x|p|r| +0#0000000&@53
+|e+0#af5f00255&|c|h|o| +0#0000000&|e+0#00e0e07&|x|p|r| +0#0000000&|i+0#af5f00255&|s|n|o|t|#| +0#0000000&|e+0#00e0e07&|x|p|r| +0#0000000&@53
+@75
+|"+0#0000e05&| |C|o|m|p|a|r|i|s|o|n| |-| |i|g|n|o|r|e| |c|a|s|e| +0#0000000&@48
+|e+0#af5f00255&|c|h|o| +0#0000000&|e+0#00e0e07&|x|p|r| +0#0000000&|=+0#af5f00255&@1|?| +0#0000000&@3|e+0#00e0e07&|x|p|r| +0#0000000&@53
+|e+0#af5f00255&|c|h|o| +0#0000000&|e+0#00e0e07&|x|p|r| +0#0000000&|!+0#af5f00255&|=|?| +0#0000000&@3|e+0#00e0e07&|x|p|r| +0#0000000&@53
+|e+0#af5f00255&|c|h|o| +0#0000000&|e+0#00e0e07&|x|p|r| +0#0000000&|>+0#af5f00255&|?| +0#0000000&@4|e+0#00e0e07&|x|p|r| +0#0000000&@53
+@57|1|0|4|,|1| @8|8|7|%| 
diff --git a/runtime/syntax/testdir/dumps/vim_expr_07.dump b/runtime/syntax/testdir/dumps/vim_expr_07.dump
new file mode 100644
index 0000000..c32edfd
--- /dev/null
+++ b/runtime/syntax/testdir/dumps/vim_expr_07.dump
@@ -0,0 +1,20 @@
+|e+0#af5f00255#ffffff0|c|h|o| +0#0000000&|e+0#00e0e07&|x|p|r| +0#0000000&|>+0#af5f00255&|?| +0#0000000&@4|e+0#00e0e07&|x|p|r| +0#0000000&@53
+|e+0#af5f00255&|c|h|o| +0#0000000&|e+0#00e0e07&|x|p|r| +0#0000000&|>+0#af5f00255&|=|?| +0#0000000&@3|e+0#00e0e07&|x|p|r| +0#0000000&@53
+|e+0#af5f00255&|c|h|o| +0#0000000&|e+0#00e0e07&|x|p|r| +0#0000000&|<+0#af5f00255&|?| +0#0000000&@4|e+0#00e0e07&|x|p|r| +0#0000000&@53
+|e+0#af5f00255&|c|h|o| +0#0000000&|e+0#00e0e07&|x|p|r| +0#0000000&|<+0#af5f00255&|=|?| +0#0000000&@3|e+0#00e0e07&|x|p|r| +0#0000000&@53
+|e+0#af5f00255&|c|h|o| +0#0000000&|e+0#00e0e07&|x|p|r| +0#0000000&|=+0#af5f00255&|~|?| +0#0000000&@3|e+0#00e0e07&|x|p|r| +0#0000000&@53
+>e+0#af5f00255&|c|h|o| +0#0000000&|e+0#00e0e07&|x|p|r| +0#0000000&|!+0#af5f00255&|~|?| +0#0000000&@3|e+0#00e0e07&|x|p|r| +0#0000000&@53
+|e+0#af5f00255&|c|h|o| +0#0000000&|e+0#00e0e07&|x|p|r| +0#0000000&|i+0#af5f00255&|s|?| +0#0000000&@3|e+0#00e0e07&|x|p|r| +0#0000000&@53
+|e+0#af5f00255&|c|h|o| +0#0000000&|e+0#00e0e07&|x|p|r| +0#0000000&|i+0#af5f00255&|s|n|o|t|?| +0#0000000&|e+0#00e0e07&|x|p|r| +0#0000000&@53
+@75
+|"+0#0000e05&| |U|n|r|e|p|o|r|t|e|d| |i|s@1|u|e| |(|i|n|c|o|r@1|e|c|t|l|y| |m|a|t|c|h|e|s| |a|s| |"+0#e000002&|e|c|h|o| |v|i|m|N|u|m|b|e|r| |*|v|i|m|C|o|m@1|a|n|d|*| |v|i|m
+|N|u|m|b|e|r|"|)+0#0000e05&| +0#0000000&@66
+|e+0#af5f00255&|c|h|o| +0#0000000&|4+0#e000002&|2| +0#0000000&|i+0#af5f00255&|s| +0#0000000&|4+0#e000002&|2| +0#0000000&@61
+@75
+|"+0#0000e05&| |I|s@1|u|e| |#|1|6|2@1|1| |(|v|i|m|S|t|r|i|n|g| |b|e|c|o|m|e|s| |v|i|m|V|a|r| |w|h|e|n| |p|r|e|c|e|d|e|d| |b|y| |!|)| +0#0000000&@14
+|l+0#af5f00255&|e|t| +0#0000000&|b+0#00e0e07&|a|r| +0#0000000&|=+0#af5f00255&| +0#0000000&|!+0#af5f00255&|'+0#e000002&|g|:|b|a|r|'|-+0#af5f00255&|>|e+0#00e0e07&|x|i|s|t|s|(+0#e000e06&|)| +0#0000000&@46
+@75
+|~+0#4040ff13&| @73
+|~| @73
+|~| @73
+| +0#0000000&@56|1|2@1|,|1| @8|B|o|t| 
diff --git a/runtime/syntax/testdir/input/vim_expr.vim b/runtime/syntax/testdir/input/vim_expr.vim
index 316f462..903db92 100644
--- a/runtime/syntax/testdir/input/vim_expr.vim
+++ b/runtime/syntax/testdir/input/vim_expr.vim
@@ -85,6 +85,46 @@
 echo 0zFF00.ED01.5DAF
 echo 0zFF.00.ED.01.5D.AF
 
+" Operators
+
+" Comparison - using 'ignorcase'
+echo expr ==     expr
+echo expr !=     expr
+echo expr >      expr
+echo expr >=     expr
+echo expr <      expr
+echo expr <=     expr
+echo expr =~     expr
+echo expr !~     expr
+echo expr is     expr
+echo expr isnot  expr
+
+" Comparison - match case
+echo expr ==#    expr
+echo expr !=#    expr
+echo expr >#     expr
+echo expr >=#    expr
+echo expr <#     expr
+echo expr <=#    expr
+echo expr =~#    expr
+echo expr !~#    expr
+echo expr is#    expr
+echo expr isnot# expr
+
+" Comparison - ignore case
+echo expr ==?    expr
+echo expr !=?    expr
+echo expr >?     expr
+echo expr >=?    expr
+echo expr <?     expr
+echo expr <=?    expr
+echo expr =~?    expr
+echo expr !~?    expr
+echo expr is?    expr
+echo expr isnot? expr
+
+" Unreported issue (incorrectly matches as "echo vimNumber *vimCommand* vimNumber")
+echo 42 is 42
 
 " Issue #16221 (vimString becomes vimVar when preceded by !)
 let bar = !'g:bar'->exists()
diff --git a/runtime/syntax/vim.vim b/runtime/syntax/vim.vim
index 04fc8c1..fc69a43 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 <dougkearns@gmail.com>
-" Last Change:	   2025 Jan 09
+" Last Change:	   2025 Jan 19
 " Former Maintainer: Charles E. Campbell
 
 " DO NOT CHANGE DIRECTLY.
@@ -95,21 +95,21 @@
 
 " Default highlighting groups {{{2
 " GEN_SYN_VIM: vimHLGroup, START_STR='syn keyword vimHLGroup contained', END_STR=''
-syn keyword vimHLGroup contained ErrorMsg IncSearch ModeMsg NonText StatusLine StatusLineNC EndOfBuffer VertSplit VisualNOS DiffText PmenuSbar TabLineSel TabLineFill Cursor lCursor QuickFixLine CursorLineSign CursorLineFold CurSearch PmenuKind PmenuKindSel PmenuMatch PmenuMatchSel PmenuExtra PmenuExtraSel ComplMatchIns Normal Directory LineNr CursorLineNr MoreMsg Question Search SpellBad SpellCap SpellRare SpellLocal PmenuThumb Pmenu PmenuSel SpecialKey Title WarningMsg WildMenu Folded FoldColumn SignColumn Visual DiffAdd DiffChange DiffDelete TabLine CursorColumn CursorLine ColorColumn MatchParen StatusLineTerm StatusLineTermNC ToolbarLine ToolbarButton Menu Tooltip Scrollbar CursorIM LineNrAbove LineNrBelow
+syn keyword vimHLGroup contained ErrorMsg IncSearch ModeMsg NonText StatusLine StatusLineNC EndOfBuffer VertSplit VisualNOS DiffText PmenuSbar TabLineSel TabLineFill Cursor lCursor QuickFixLine CursorLineSign CursorLineFold CurSearch PmenuKind PmenuKindSel PmenuMatch PmenuMatchSel PmenuExtra PmenuExtraSel Normal Directory LineNr CursorLineNr MoreMsg Question Search SpellBad SpellCap SpellRare SpellLocal PmenuThumb Pmenu PmenuSel SpecialKey Title WarningMsg WildMenu Folded FoldColumn SignColumn Visual DiffAdd DiffChange DiffDelete TabLine CursorColumn CursorLine ColorColumn MatchParen StatusLineTerm StatusLineTermNC ToolbarLine ToolbarButton Menu Tooltip Scrollbar CursorIM LineNrAbove LineNrBelow
 syn match vimHLGroup contained "\<Conceal\>"
 syn case match
 
 " Function Names {{{2
 " GEN_SYN_VIM: vimFuncName, START_STR='syn keyword vimFuncName contained', END_STR=''
-syn keyword vimFuncName contained abs acos add and append appendbufline argc argidx arglistid argv asin assert_beeps assert_equal assert_equalfile assert_exception assert_fails assert_false assert_inrange assert_match assert_nobeep assert_notequal assert_notmatch assert_report assert_true atan atan2 autocmd_add autocmd_delete autocmd_get balloon_gettext balloon_show balloon_split base64_decode base64_encode bindtextdomain blob2list browse browsedir bufadd bufexists buflisted bufload bufloaded bufname bufnr bufwinid bufwinnr byte2line byteidx byteidxcomp call ceil ch_canread ch_close ch_close_in ch_evalexpr ch_evalraw ch_getbufnr ch_getjob ch_info ch_log ch_logfile ch_open ch_read ch_readblob ch_readraw ch_sendexpr ch_sendraw ch_setoptions ch_status changenr char2nr
-syn keyword vimFuncName contained charclass charcol charidx chdir cindent clearmatches col complete complete_add complete_check complete_info confirm copy cos cosh count cscope_connection cursor debugbreak deepcopy delete deletebufline did_filetype diff diff_filler diff_hlID digraph_get digraph_getlist digraph_set digraph_setlist echoraw empty environ err_teapot escape eval eventhandler executable execute exepath exists exists_compiled exp expand expandcmd extend extendnew feedkeys filecopy filereadable filewritable filter finddir findfile flatten flattennew float2nr floor fmod fnameescape fnamemodify foldclosed foldclosedend foldlevel foldtext foldtextresult foreach foreground fullcommand funcref function garbagecollect get getbufinfo getbufline getbufoneline
+syn keyword vimFuncName contained abs acos add and append appendbufline argc argidx arglistid argv asin assert_beeps assert_equal assert_equalfile assert_exception assert_fails assert_false assert_inrange assert_match assert_nobeep assert_notequal assert_notmatch assert_report assert_true atan atan2 autocmd_add autocmd_delete autocmd_get balloon_gettext balloon_show balloon_split base64_decode base64_encode bindtextdomain blob2list blob2str browse browsedir bufadd bufexists buflisted bufload bufloaded bufname bufnr bufwinid bufwinnr byte2line byteidx byteidxcomp call ceil ch_canread ch_close ch_close_in ch_evalexpr ch_evalraw ch_getbufnr ch_getjob ch_info ch_log ch_logfile ch_open ch_read ch_readblob ch_readraw ch_sendexpr ch_sendraw ch_setoptions ch_status changenr
+syn keyword vimFuncName contained char2nr charclass charcol charidx chdir cindent clearmatches col complete complete_add complete_check complete_info confirm copy cos cosh count cscope_connection cursor debugbreak deepcopy delete deletebufline did_filetype diff diff_filler diff_hlID digraph_get digraph_getlist digraph_set digraph_setlist echoraw empty environ err_teapot escape eval eventhandler executable execute exepath exists exists_compiled exp expand expandcmd extend extendnew feedkeys filecopy filereadable filewritable filter finddir findfile flatten flattennew float2nr floor fmod fnameescape fnamemodify foldclosed foldclosedend foldlevel foldtext foldtextresult foreach foreground fullcommand funcref function garbagecollect get getbufinfo getbufline getbufoneline
 syn keyword vimFuncName contained getbufvar getcellpixels getcellwidths getchangelist getchar getcharmod getcharpos getcharsearch getcharstr getcmdcomplpat getcmdcompltype getcmdline getcmdpos getcmdprompt getcmdscreenpos getcmdtype getcmdwintype getcompletion getcurpos getcursorcharpos getcwd getenv getfontname getfperm getfsize getftime getftype getimstatus getjumplist getline getloclist getmarklist getmatches getmousepos getmouseshape getpid getpos getqflist getreg getreginfo getregion getregionpos getregtype getscriptinfo getstacktrace gettabinfo gettabvar gettabwinvar gettagstack gettext getwininfo getwinpos getwinposx getwinposy getwinvar glob glob2regpat globpath has has_key haslocaldir hasmapto histadd histdel histget histnr hlID hlexists hlget hlset hostname
 syn keyword vimFuncName contained iconv id indent index indexof input inputdialog inputlist inputrestore inputsave inputsecret insert instanceof interrupt invert isabsolutepath isdirectory isinf islocked isnan items job_getchannel job_info job_setoptions job_start job_status job_stop join js_decode js_encode json_decode json_encode keys keytrans len libcall libcallnr line line2byte lispindent list2blob list2str listener_add listener_flush listener_remove localtime log log10 luaeval map maparg mapcheck maplist mapnew mapset match matchadd matchaddpos matcharg matchbufline matchdelete matchend matchfuzzy matchfuzzypos matchlist matchstr matchstrlist matchstrpos max menu_info min mkdir mode mzeval nextnonblank nr2char or pathshorten perleval popup_atcursor popup_beval
 syn keyword vimFuncName contained popup_clear popup_close popup_create popup_dialog popup_filter_menu popup_filter_yesno popup_findecho popup_findinfo popup_findpreview popup_getoptions popup_getpos popup_hide popup_list popup_locate popup_menu popup_move popup_notification popup_setbuf popup_setoptions popup_settext popup_show pow prevnonblank printf prompt_getprompt prompt_setcallback prompt_setinterrupt prompt_setprompt prop_add prop_add_list prop_clear prop_find prop_list prop_remove prop_type_add prop_type_change prop_type_delete prop_type_get prop_type_list pum_getpos pumvisible py3eval pyeval pyxeval rand range readblob readdir readdirex readfile reduce reg_executing reg_recording reltime reltimefloat reltimestr remote_expr remote_foreground remote_peek
 syn keyword vimFuncName contained remote_read remote_send remote_startserver remove rename repeat resolve reverse round rubyeval screenattr screenchar screenchars screencol screenpos screenrow screenstring search searchcount searchdecl searchpair searchpairpos searchpos server2client serverlist setbufline setbufvar setcellwidths setcharpos setcharsearch setcmdline setcmdpos setcursorcharpos setenv setfperm setline setloclist setmatches setpos setqflist setreg settabvar settabwinvar settagstack setwinvar sha256 shellescape shiftwidth sign_define sign_getdefined sign_getplaced sign_jump sign_place sign_placelist sign_undefine sign_unplace sign_unplacelist simplify sin sinh slice sort sound_clear sound_playevent sound_playfile sound_stop soundfold spellbadword spellsuggest
-syn keyword vimFuncName contained split sqrt srand state str2float str2list str2nr strcharlen strcharpart strchars strdisplaywidth strftime strgetchar stridx string strlen strpart strptime strridx strtrans strutf16len strwidth submatch substitute swapfilelist swapinfo swapname synID synIDattr synIDtrans synconcealed synstack system systemlist tabpagebuflist tabpagenr tabpagewinnr tagfiles taglist tan tanh tempname term_dumpdiff term_dumpload term_dumpwrite term_getaltscreen term_getansicolors term_getattr term_getcursor term_getjob term_getline term_getscrolled term_getsize term_getstatus term_gettitle term_gettty term_list term_scrape term_sendkeys term_setansicolors term_setapi term_setkill term_setrestore term_setsize term_start term_wait terminalprops test_alloc_fail
-syn keyword vimFuncName contained test_autochdir test_feedinput test_garbagecollect_now test_garbagecollect_soon test_getvalue test_gui_event test_ignore_error test_mswin_event test_null_blob test_null_channel test_null_dict test_null_function test_null_job test_null_list test_null_partial test_null_string test_option_not_set test_override test_refcount test_setmouse test_settime test_srand_seed test_unknown test_void timer_info timer_pause timer_start timer_stop timer_stopall tolower toupper tr trim trunc type typename undofile undotree uniq utf16idx values virtcol virtcol2col visualmode wildmenumode win_execute win_findbuf win_getid win_gettype win_gotoid win_id2tabwin win_id2win win_move_separator win_move_statusline win_screenpos win_splitmove winbufnr wincol
-syn keyword vimFuncName contained windowsversion winheight winlayout winline winnr winrestcmd winrestview winsaveview winwidth wordcount writefile xor
+syn keyword vimFuncName contained split sqrt srand state str2blob str2float str2list str2nr strcharlen strcharpart strchars strdisplaywidth strftime strgetchar stridx string strlen strpart strptime strridx strtrans strutf16len strwidth submatch substitute swapfilelist swapinfo swapname synID synIDattr synIDtrans synconcealed synstack system systemlist tabpagebuflist tabpagenr tabpagewinnr tagfiles taglist tan tanh tempname term_dumpdiff term_dumpload term_dumpwrite term_getaltscreen term_getansicolors term_getattr term_getcursor term_getjob term_getline term_getscrolled term_getsize term_getstatus term_gettitle term_gettty term_list term_scrape term_sendkeys term_setansicolors term_setapi term_setkill term_setrestore term_setsize term_start term_wait terminalprops
+syn keyword vimFuncName contained test_alloc_fail test_autochdir test_feedinput test_garbagecollect_now test_garbagecollect_soon test_getvalue test_gui_event test_ignore_error test_mswin_event test_null_blob test_null_channel test_null_dict test_null_function test_null_job test_null_list test_null_partial test_null_string test_option_not_set test_override test_refcount test_setmouse test_settime test_srand_seed test_unknown test_void timer_info timer_pause timer_start timer_stop timer_stopall tolower toupper tr trim trunc type typename undofile undotree uniq utf16idx values virtcol virtcol2col visualmode wildmenumode win_execute win_findbuf win_getid win_gettype win_gotoid win_id2tabwin win_id2win win_move_separator win_move_statusline win_screenpos win_splitmove
+syn keyword vimFuncName contained winbufnr wincol windowsversion winheight winlayout winline winnr winrestcmd winrestview winsaveview winwidth wordcount writefile xor
 
 "--- syntax here and above generated by mkvimvim ---
 " Special Vim Highlighting (not automatic) {{{1
@@ -230,13 +230,13 @@
 " Numbers {{{2
 " =======
 syn case ignore
-syn match	vimNumber	'\<\d\+\%(\.\d\+\%(e[+-]\=\d\+\)\=\)\='	skipwhite nextgroup=vimGlobal,vimSubst1,vimCommand,@vimComment
-syn match	vimNumber	'\<0b[01]\+'			skipwhite nextgroup=vimGlobal,vimSubst1,vimCommand,@vimComment
-syn match	vimNumber	'\<0o\=\o\+'			skipwhite nextgroup=vimGlobal,vimSubst1,vimCommand,@vimComment
-syn match	vimNumber	'\<0x\x\+'			skipwhite nextgroup=vimGlobal,vimSubst1,vimCommand,@vimComment
-syn match	vimNumber	'\<0z\>'			skipwhite nextgroup=vimGlobal,vimSubst1,vimCommand,@vimComment
-syn match	vimNumber	'\<0z\%(\x\x\)\+\%(\.\%(\x\x\)\+\)*'	skipwhite nextgroup=vimGlobal,vimSubst1,vimCommand,@vimComment
-syn match	vimNumber	'\%(^\|\A\)\zs#\x\{6}'		skipwhite nextgroup=vimGlobal,vimSubst1,vimCommand,@vimComment
+syn match	vimNumber	'\<\d\+\%(\.\d\+\%(e[+-]\=\d\+\)\=\)\='	skipwhite nextgroup=vimGlobal,vimSubst1,@vimComment
+syn match	vimNumber	'\<0b[01]\+'			skipwhite nextgroup=vimGlobal,vimSubst1,@vimComment
+syn match	vimNumber	'\<0o\=\o\+'			skipwhite nextgroup=vimGlobal,vimSubst1,@vimComment
+syn match	vimNumber	'\<0x\x\+'			skipwhite nextgroup=vimGlobal,vimSubst1,@vimComment
+syn match	vimNumber	'\<0z\>'			skipwhite nextgroup=vimGlobal,vimSubst1,@vimComment
+syn match	vimNumber	'\<0z\%(\x\x\)\+\%(\.\%(\x\x\)\+\)*'	skipwhite nextgroup=vimGlobal,vimSubst1,@vimComment
+syn match	vimNumber	'\%(^\|\A\)\zs#\x\{6}'		skipwhite nextgroup=vimGlobal,vimSubst1,@vimComment
 syn case match
 
 " All vimCommands are contained by vimIsCommand. {{{2
@@ -319,10 +319,12 @@
 " Operators: {{{2
 " =========
 syn cluster	vimOperGroup	contains=vimEnvvar,vimFunc,vimFuncVar,vimOper,vimOperParen,vimNumber,vimString,vimRegister,@vimContinue,vim9Comment,vimVar,vimBoolean,vimNull
-syn match	vimOper	"\a\@<!!"				skipwhite nextgroup=vimString,vimSpecFile
-syn match	vimOper	"||\|&&\|[-+*/%.]"			skipwhite nextgroup=vimString,vimSpecFile
-syn match	vimOper	"\%#=1\(==\|!=\|>=\|<=\|=\~\|!\~\|>\|<\|=\|!\~#\)[?#]\{0,2}"	skipwhite nextgroup=vimString,vimSpecFile
-syn match	vimOper	"\(\<is\|\<isnot\)[?#]\{0,2}\>"			skipwhite nextgroup=vimString,vimSpecFile
+syn match	vimOper	"\a\@<!!"			skipwhite nextgroup=vimString,vimSpecFile
+syn match	vimOper	"||\|&&\|[-+*/%.]"		skipwhite nextgroup=vimString,vimSpecFile
+syn match	vimOper	"="			skipwhite nextgroup=vimString,vimSpecFile
+syn match	vimOper	"\%#=1\%(==\|!=\|>=\|<=\|=\~\|!\~\|>\|<\)[?#]\="	skipwhite nextgroup=vimString,vimSpecFile
+syn match	vimOper	"\<is\%(not\)\=\>"		skipwhite nextgroup=vimString,vimSpecFile
+syn match	vimOper	"\<is\%(not\)\=[?#]"		skipwhite nextgroup=vimString,vimSpecFile
 syn region	vimOperParen 	matchgroup=vimParenSep	start="(" end=")" contains=@vimOperGroup
 syn region	vimOperParen	matchgroup=vimSep		start="#\={" end="}" contains=@vimOperGroup nextgroup=vimVar,vimFuncVar
 if !exists("g:vimsyn_noerror") && !exists("g:vimsyn_noopererror")