From 062655c9d20b69c1f4df3e1b72e2dc08924b6e54 Mon Sep 17 00:00:00 2001
From: 5BNeumann <146111161+5BNeumann@users.noreply.github.com>
Date: Mon, 21 Sep 2026 01:39:23 +0200
Subject: [PATCH 1/2] Update nim.yaml to nim 2.0+

Add support for multiline comments and string as well as fix the old single line comments and strings.
---
 runtime/syntax/nim.yaml | 34 +++++++++++++++++++++++++++++-----
 1 file changed, 29 insertions(+), 5 deletions(-)

diff --git a/runtime/syntax/nim.yaml b/runtime/syntax/nim.yaml
index 45f73d173b..3b64d55da8 100644
--- a/runtime/syntax/nim.yaml
+++ b/runtime/syntax/nim.yaml
@@ -17,11 +17,35 @@ rules:
     - constant.number: "\\b0[ocC][0-7][0-7_]+\\b"
     - constant.number: "\\b0[bB][01][01_]+\\b"
     - constant.number: "\\b[0-9_]((\\.?)[0-9_]+)?[eE][+\\-][0-9][0-9_]+\\b"
-    - constant.string: "\"(\\\\.|[^\"])*\"|'(\\\\.|[^'])*'"
-    - comment: "[[:space:]]*(?:[^\\\\]|^)#.*$"
+    
+    - constant.string:
+        start: "\""
+        end: "\""
+        skip: "\\\\."
+        rules:
+            - constant.specialChar: "\\\\([\"'abceflnprtv\\\\]|\\d+|x[0-9A-Fa-f]{2}|u[0-9A-Fa-f]{4}|u\\{[0-9A-Fa-f]+\\})"
+
+    - constant.string:
+        start: "'"
+        end: "'"
+        skip: "\\\\."
+        rules:
+            - constant.specialChar: "\\\\([\"'abceflnprtv\\\\]|\\d+|x[0-9A-Fa-f]{2}|u[0-9A-Fa-f]{4}|u\\{[0-9A-Fa-f]+\\})"
+
+    - constant.string:
+        start: "\"\"\""
+        end: "\"\"\""
+        skip: "\\\\."
+        rules:
+            - constant.specialChar: "\\\\([\"'abceflnprtv\\\\]|\\d+|x[0-9A-Fa-f]{2}|u[0-9A-Fa-f]{4}|u\\{[0-9A-Fa-f]+\\})"
+
+    - comment:
+        start: "#"
+        end: "$"
+        rules:
+            - todo: "(TODO|FIXME|XXX):?"
     - comment:
         start: "\\#\\["
         end: "\\]\\#"
-        rules: []
-
-    - todo: "(TODO|FIXME|XXX):?"
+        rules:
+            - todo: "(TODO|FIXME|XXX):?"

From 3a7e88984118e0180b684c0516b6ab62630d1274 Mon Sep 17 00:00:00 2001
From: 5BNeumann <flyalalu2@gmail.com>
Date: Tue, 22 Sep 2026 03:53:55 +0200
Subject: [PATCH 2/2] Fix issues in the updated syntax The muti-line comment is
 now a raw string (I had support for special chars which shouldn't have been
 the case) and raw string litterals should work too. (Although I did test
 them, there might be edge cases I missed)

I borrowed more rules from the C syntax to make `'` chars instead of
strings. (I honnestly forgot this behavior the first time round)

I also fixed multi-line comments by moving the higher up, the single
line comment was taking priority on the closing tag which caused
issues.
---
 runtime/syntax/nim.yaml | 25 ++++++++++++++++---------
 1 file changed, 16 insertions(+), 9 deletions(-)

diff --git a/runtime/syntax/nim.yaml b/runtime/syntax/nim.yaml
index 3b64d55da8..71cc5b47d7 100644
--- a/runtime/syntax/nim.yaml
+++ b/runtime/syntax/nim.yaml
@@ -20,32 +20,39 @@ rules:
     
     - constant.string:
         start: "\""
-        end: "\""
+        end: "(\"|$)"
         skip: "\\\\."
         rules:
             - constant.specialChar: "\\\\([\"'abceflnprtv\\\\]|\\d+|x[0-9A-Fa-f]{2}|u[0-9A-Fa-f]{4}|u\\{[0-9A-Fa-f]+\\})"
 
     - constant.string:
-        start: "'"
-        end: "'"
+        start: "(r|R)\""
+        end: "(\"|$)"
         skip: "\\\\."
-        rules:
-            - constant.specialChar: "\\\\([\"'abceflnprtv\\\\]|\\d+|x[0-9A-Fa-f]{2}|u[0-9A-Fa-f]{4}|u\\{[0-9A-Fa-f]+\\})"
+        rules: []
 
     - constant.string:
         start: "\"\"\""
         end: "\"\"\""
         skip: "\\\\."
+        rules: []
+
+    - constant.string:
+        start: "'"
+        end: "('|$)"
+        skip: "\\\\."
         rules:
+            - error: "[[:graph:]]{2,}'"
             - constant.specialChar: "\\\\([\"'abceflnprtv\\\\]|\\d+|x[0-9A-Fa-f]{2}|u[0-9A-Fa-f]{4}|u\\{[0-9A-Fa-f]+\\})"
 
     - comment:
-        start: "#"
-        end: "$"
+        start: "#\\["
+        end: "\\]#"
         rules:
             - todo: "(TODO|FIXME|XXX):?"
+
     - comment:
-        start: "\\#\\["
-        end: "\\]\\#"
+        start: "#"
+        end: "$"
         rules:
             - todo: "(TODO|FIXME|XXX):?"