[gtksourceview: 1/3] c.lang: highlight C11 Unicode literals

[Christian Hergert <chergert src gnome org>]

commit 94592d7b862bd29e89e6ada8b3f0bc3b15f9a0e8
Author: Elias Aebi <353-eyelash users noreply gitlab gnome org>
Date:   Wed Apr 27 09:16:17 2022 +0200

    c.lang: highlight C11 Unicode literals

 data/language-specs/c.lang | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/data/language-specs/c.lang b/data/language-specs/c.lang
index 48c7f9c4..0f3f31f3 100644
--- a/data/language-specs/c.lang
+++ b/data/language-specs/c.lang
@@ -125,7 +125,7 @@
     </context>
 
     <context id="string" style-ref="string" end-at-line-end="true" class="string" 
class-disabled="no-spell-check">
-      <start>L?"</start>
+      <start>(L|u8|u|U)?"</start>
       <end>"</end>
       <include>
         <context ref="printf"/>
@@ -137,7 +137,7 @@
     </context>
 
     <context id="char" style-ref="char" class="string">
-      <match>L?'(\%{escaped-character}|.)'</match>
+      <match>(L|u8|u|U)?'(\%{escaped-character}|.)'</match>
     </context>
 
     <!-- http://www.lysator.liu.se/c/ANSI-C-grammar-l.html -->