From b1990ceb2622c18f99c75b980dfd4ca8a0f0ed6c Mon Sep 17 00:00:00 2001
From: "Jan T. Sott" <git@idleberg.com>
Date: Fri, 3 Dec 2021 18:51:42 +0100
Subject: [PATCH] enh(nsis) Update defines pattern to allow `!` (#3417)

Defines can include `!`-characters, as seen in this example: https://nsis.sourceforge.io/Check_if_a_file_exists_at_compile_time
---
 CHANGES.md            | 3 ++-
 src/languages/nsis.js | 2 +-
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/CHANGES.md b/CHANGES.md
index a0b1160598..7d6636393f 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -7,6 +7,7 @@ Grammars:
 - enh(swift) add SE-0290 unavailability condition (#3382) [Bradley Mackey][]
 - fix(fsharp) Highlight operators, match type names only in type annotations, support quoted identifiers, and other smaller fixes. [Melvyn Laïly][]
 - enh(java) add `sealed` and `non-sealed` keywords (#3386) [Bradley Mackey][]
+- enh(nsis) Update defines pattern to allow `!` (#3417) [idleberg][]
 - fix(clojure) Several issues with Clojure highlighting (#3397) [Björn Ebbinghaus][]
   - fix(clojure) `comment` macro catches more than it should (#3395)
   - fix(clojure) `$` in symbol breaks highlighting
@@ -31,7 +32,7 @@ Themes:
 [Björn Ebbinghaus]: https://github.com/MrEbbinghaus
 [Josh Goebel]: https://github.com/joshgoebel
 [Samia Ali]: https://github.com/samiaab1990
-
+[idleberg]: https://github.com/idleberg
 
 ## Version 11.3.1
 
diff --git a/src/languages/nsis.js b/src/languages/nsis.js
index fa3b2e547f..fd64106d27 100644
--- a/src/languages/nsis.js
+++ b/src/languages/nsis.js
@@ -153,7 +153,7 @@ export default function(hljs) {
   const DEFINES = {
     // ${defines}
     className: 'variable',
-    begin: /\$+\{[\w.:-]+\}/
+    begin: /\$+\{[\!\w.:-]+\}/
   };
 
   const VARIABLES = {