From 299c78612d6d025b9c36fd7205064d0fc7309baf Mon Sep 17 00:00:00 2001
From: tony newell <tony.newell@pobox.com>
Date: Mon, 26 Feb 2024 10:38:38 +0000
Subject: [PATCH] Fix csharp doc commments

---
 src/google/protobuf/compiler/csharp/csharp_doc_comment.cc | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/src/google/protobuf/compiler/csharp/csharp_doc_comment.cc b/src/google/protobuf/compiler/csharp/csharp_doc_comment.cc
index 423033e101..56a7ab232e 100644
--- a/src/google/protobuf/compiler/csharp/csharp_doc_comment.cc
+++ b/src/google/protobuf/compiler/csharp/csharp_doc_comment.cc
@@ -54,7 +54,13 @@ void WriteDocCommentBodyImpl(io::Printer* printer, SourceLocation location) {
           printer->Print("///\n");
         }
         last_was_empty = false;
-        printer->Print("///$line$\n", "line", *it);
+        // If the comment has an extra slash at the start then this can cause the C# compiler
+        // to complain when generating the XML documentation
+        // Issue https://github.com/grpc/grpc/issues/35905
+        if (line[0] == '/') {
+            line.replace(0,1,"&#x2F;");
+        }
+        printer->Print("///$line$\n", "line", line);
       }
     }
     printer->Print("/// </summary>\n");