Commit: runtime(toml): update syntax script and fix highlight of dates and escapes

[Christian Brabandt]

runtime(toml): update syntax script and fix highlight of dates and escapes

Commit: https://github.com/vim/vim/commit/c6f6f1602dcd63d0e175f826b12bbe58be878d58
Author: Martin Tournoij <mar...@arp242.net>
Date: Tue Mar 10 20:02:05 2026 +0000

runtime(toml): update syntax script and fix highlight of dates and escapes

From upstream:
https://github.com/cespare/vim-toml/pull/69
https://github.com/cespare/vim-toml/pull/70

closes: #19591

Signed-off-by: Martin Tournoij <mar...@arp242.net>
Signed-off-by: Christian Brabandt <c...@256bit.org>

diff --git a/runtime/syntax/toml.vim b/runtime/syntax/toml.vim
index 961e03340..c91c1c3ba 100644
--- a/runtime/syntax/toml.vim
+++ b/runtime/syntax/toml.vim
@@ -3,13 +3,14 @@
" Homepage: https://github.com/cespare/vim-toml
" Maintainer: Aman Verma
" Previous Maintainer: Caleb Spare <ces...@gmail.com>
-" Last Change: May 5, 2025
+" Last Change: Mar 10, 2026

if exists('b:current_syntax')
finish
endif

-syn match tomlEscape /\[btnfr"/\]/ display contained
+syn match tomlEscape /\[betnfr"/\]/ display contained
+syn match tomlEscape /\x\x\{2}/ contained
syn match tomlEscape /\u\x\{4}/ contained
syn match tomlEscape /\U\x\{8}/ contained
syn match tomlLineEscape /\$/ contained
@@ -37,8 +38,8 @@ syn match tomlBoolean /\<\%(true\|false\)\>/ display

" https://tools.ietf.org/html/rfc3339
syn match tomlDate /\d\{4\}-\d\{2\}-\d\{2\}/ display
-syn match tomlDate /\d\{2\}:\d\{2\}:\d\{2\}\%(\.\d\+\)\?/ display
-syn match tomlDate /\d\{4\}-\d\{2\}-\d\{2\}[T ]\d\{2\}:\d\{2\}:\d\{2\}\%(\.\d\+\)\?\%(Z\|[+-]\d\{2\}:\d\{2\}\)\?/ display
+syn match tomlDate /\d\{2\}:\d\{2\}\%(:\d\{2\}\%(\.\d\+\)\?\)\?/ display
+syn match tomlDate /\d\{4\}-\d\{2\}-\d\{2\}[Tt ]\d\{2\}:\d\{2\}\%(:\d\{2\}\%(\.\d\+\)\?\)\?\%([Zz]\|[+-]\d\{2\}:\d\{2\}\)\?/ display

syn match tomlDotInKey / [^.]+\zs\./ contained display
syn match tomlKey / (^|[{,])\s*\zs[[:alnum:]._-]+\ze\s*\=/ contains=tomlDotInKey display