From 2229e7fe8ebb8f95eb2dbca7c1df423ff22a4a65 Mon Sep 17 00:00:00 2001
From: schtandard <bwilde@posteo.de>
Date: Fri, 18 Jun 2021 18:55:14 +0200
Subject: [PATCH 1/4] Recognize wider syntax for magic comments

---
 src/languages/latex.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/languages/latex.js b/src/languages/latex.js
index 408e1d86b5..5efc55b869 100644
--- a/src/languages/latex.js
+++ b/src/languages/latex.js
@@ -105,7 +105,7 @@ export default function(hljs) {
   };
   const MAGIC_COMMENT = {
     className: 'meta',
-    begin: '% !TeX',
+    begin: /% ?!(?:T[eE]X|tex|BIB|bib)/,
     end: '$',
     relevance: 10
   };

From 21809c4e97d87f97fd893dad847c9638379c57c7 Mon Sep 17 00:00:00 2001
From: schtandard <bwilde@posteo.de>
Date: Fri, 18 Jun 2021 18:58:24 +0200
Subject: [PATCH 2/4] Update CHANGES.md

---
 CHANGES.md | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/CHANGES.md b/CHANGES.md
index 358345934d..2858a2b664 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -12,6 +12,7 @@ Grammars:
 - enh(elixir) updated list of keywords (#3212) [Angelika Tyborska][]
 - fix(elixir) fixed number detection when numbers start with a zero (#3212) [Angelika Tyborska][]
 - fix(ps1) Flag highlighted incorrectly (#3167) [Pankaj Patil][]
+- fix(latex) Allow wider syntax for magic comments (#3243) [Benedikt Wilde][]
 
 [Stel Abrego]: https://github.com/stelcodes
 [Josh Goebel]: https://github.com/joshgoebel
@@ -21,6 +22,7 @@ Grammars:
 [Konrad Rudolph]: https://github.com/klmr
 [tebeco]: https://github.com/tebeco
 [Pankaj Patil]: https://github.com/patil2099
+[Benedikt Wilde]: https://github.com/schtandard
 
 
 ## Version 11.0.0

From b6b641f0180663c8eb4d830b1a414ee249b3d6a7 Mon Sep 17 00:00:00 2001
From: schtandard <bwilde@posteo.de>
Date: Fri, 18 Jun 2021 19:07:20 +0200
Subject: [PATCH 3/4] Add tests for new variants

---
 test/markup/latex/comments.expect.txt | 7 +++++++
 test/markup/latex/comments.txt        | 7 +++++++
 2 files changed, 14 insertions(+)

diff --git a/test/markup/latex/comments.expect.txt b/test/markup/latex/comments.expect.txt
index 69290f0496..abff4e9f73 100644
--- a/test/markup/latex/comments.expect.txt
+++ b/test/markup/latex/comments.expect.txt
@@ -2,3 +2,10 @@
 foo<span class="hljs-comment">%</span>
 <span class="hljs-meta">% !TeX program = pdflatex</span>
 <span class="hljs-comment">%% !TeX encoding = utf8</span>
+<span class="hljs-meta">%!TEX spellcheck = en-US</span>
+<span class="hljs-comment">%  !TeX foo</span>
+<span class="hljs-meta">% !tex foo</span>
+<span class="hljs-comment">% !tEx foo</span>
+<span class="hljs-meta">% !BIB foo</span>
+<span class="hljs-meta">%!bib foo</span>
+<span class="hljs-comment">% !Bib foo</span>
diff --git a/test/markup/latex/comments.txt b/test/markup/latex/comments.txt
index c12ec09044..2aa4c51ed1 100644
--- a/test/markup/latex/comments.txt
+++ b/test/markup/latex/comments.txt
@@ -2,3 +2,10 @@
 foo%
 % !TeX program = pdflatex
 %% !TeX encoding = utf8
+%!TEX spellcheck = en-US
+%  !TeX foo
+% !tex foo
+% !tEx foo
+% !BIB foo
+%!bib foo
+% !Bib foo

From 0f91db3fef1b2e0c807310061288ba4d0a6220ce Mon Sep 17 00:00:00 2001
From: Benedikt Wilde <schtandard@users.noreply.github.com>
Date: Fri, 18 Jun 2021 19:48:59 +0200
Subject: [PATCH 4/4] Do not use non-capturing group.

Co-authored-by: Josh Goebel <me@joshgoebel.com>
---
 src/languages/latex.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/languages/latex.js b/src/languages/latex.js
index 5efc55b869..61f34d3907 100644
--- a/src/languages/latex.js
+++ b/src/languages/latex.js
@@ -105,7 +105,7 @@ export default function(hljs) {
   };
   const MAGIC_COMMENT = {
     className: 'meta',
-    begin: /% ?!(?:T[eE]X|tex|BIB|bib)/,
+    begin: /% ?!(T[eE]X|tex|BIB|bib)/,
     end: '$',
     relevance: 10
   };