From d17a6affb1d0f8876c094bb37315c9a235a7b5dc Mon Sep 17 00:00:00 2001
From: Tan Le <tan.le@hey.com>
Date: Tue, 28 Jun 2022 13:17:54 +1000
Subject: [PATCH] Fix template highlight of braces in CPP lexer (#1839)

---
 lib/rouge/lexers/cpp.rb | 1 +
 spec/visual/samples/cpp | 7 +++++++
 2 files changed, 8 insertions(+)

diff --git a/lib/rouge/lexers/cpp.rb b/lib/rouge/lexers/cpp.rb
index d78261e8e7..e9694267a2 100644
--- a/lib/rouge/lexers/cpp.rb
+++ b/lib/rouge/lexers/cpp.rb
@@ -71,6 +71,7 @@ def self.reserved
         rule %r/\bnullptr\b/, Name::Builtin
         rule %r/(?:u8|u|U|L)?R"([a-zA-Z0-9_{}\[\]#<>%:;.?*\+\-\/\^&|~!=,"']{,16})\(.*?\)\1"/m, Str
         rule %r/(::|<=>)/, Operator
+        rule %r/[{}]/, Punctuation
       end
 
       state :classname do
diff --git a/spec/visual/samples/cpp b/spec/visual/samples/cpp
index a08ab960cb..b738ec6f4e 100644
--- a/spec/visual/samples/cpp
+++ b/spec/visual/samples/cpp
@@ -112,6 +112,13 @@ void forward_args(F f, Args... args) {
     f(std::forward<Args>(args)...);
 }
 
+// using auto
+template<auto F = requires { foo(); }>
+void func();
+
+template<auto F = []{}>
+void func();
+
 // namespace
 namespace printing {
     inline namespace latest {