From ddfb47be9ee1df22ae25927431560912d8e5677a Mon Sep 17 00:00:00 2001
From: Jan <meis@imbi.uni-heidelberg.de>
Date: Sun, 7 Nov 2021 13:09:15 +0100
Subject: [PATCH 1/2] Add backtick to list of quote characters for syntax
 highlighting.

---
 syntax/r.json | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/syntax/r.json b/syntax/r.json
index 69e57cb08..dd8233a87 100644
--- a/syntax/r.json
+++ b/syntax/r.json
@@ -248,6 +248,27 @@
                             "name": "constant.character.escape.r"
                         }
                     ]
+                },
+                {
+                    "begin": "`",
+                    "beginCaptures": {
+                        "0": {
+                            "name": "punctuation.definition.string.begin.r"
+                        }
+                    },
+                    "end": "`",
+                    "endCaptures": {
+                        "0": {
+                            "name": "punctuation.definition.string.end.r"
+                        }
+                    },
+                    "name": "string.quoted.single.r",
+                    "patterns": [
+                        {
+                            "match": "\\\\.",
+                            "name": "constant.character.escape.r"
+                        }
+                    ]
                 }
             ]
         },

From edb8cea34fdad10849a6014300267c34d6598409 Mon Sep 17 00:00:00 2001
From: Jan <meis@imbi.uni-heidelberg.de>
Date: Sun, 7 Nov 2021 14:43:28 +0100
Subject: [PATCH 2/2] backticks denote nonstandard variable names and should
 therefore be coloured like variables

---
 syntax/r.json | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/syntax/r.json b/syntax/r.json
index dd8233a87..821fadbe3 100644
--- a/syntax/r.json
+++ b/syntax/r.json
@@ -262,11 +262,11 @@
                             "name": "punctuation.definition.string.end.r"
                         }
                     },
-                    "name": "string.quoted.single.r",
+                    "name": "variable.parameter.r",
                     "patterns": [
                         {
                             "match": "\\\\.",
-                            "name": "constant.character.escape.r"
+                            "name": "variable.parameter.r"
                         }
                     ]
                 }