From d82dea382865f939711567805333c4721ac728fc Mon Sep 17 00:00:00 2001
From: Oscar Spencer <oscar@grain-lang.org>
Date: Sun, 5 Jun 2022 22:47:08 -0400
Subject: [PATCH] fix: Only highlight valid string escapes (#118)

---
 editor-extensions/vscode/syntaxes/grain.json | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/editor-extensions/vscode/syntaxes/grain.json b/editor-extensions/vscode/syntaxes/grain.json
index 998d1eb..c1eefd9 100644
--- a/editor-extensions/vscode/syntaxes/grain.json
+++ b/editor-extensions/vscode/syntaxes/grain.json
@@ -829,7 +829,11 @@
       "patterns": [
         {
           "name": "constant.character.escape.grain",
-          "match": "(\\\\\\d{1,3}|\\\\x[A-Fa-f0-9]{1,2}|\\\\u[A-Fa-f0-9]{4}|\\\\u\\{[A-Fa-f0-9]{1,6}\\}|\\\\.)"
+          "match": "(\\\\\\d{1,3}|\\\\x[A-Fa-f0-9]{1,2}|\\\\u[A-Fa-f0-9]{4}|\\\\u\\{[A-Fa-f0-9]{1,6}\\}|\\\\[bftvrn'\"\\\\])"
+        },
+        {
+          "name": "invalid.illegal.grain",
+          "match": "\\\\."
         }
       ]
     },