From 30974a5403a070c7af56bcd9554ffc74e834ebcf Mon Sep 17 00:00:00 2001
From: REKHA SUTHAR <71004640+rekha0suthar@users.noreply.github.com>
Date: Tue, 28 Jul 2026 12:56:34 +0530
Subject: [PATCH] fix: handle Windows backslash path separator in grep search
 results

On Windows, ripgrep outputs file paths with a backslash prefix (e.g.
`.\path\to\file`) instead of the forward-slash prefix (`./path/to/file`)
used on Unix systems. The existing check only matched `./`, causing the
grep_search tool to return no results on Windows.

Added `line.startsWith(".\\")` to the path-detection condition so that
Windows-style paths are correctly identified as file headers.

Fixes #13027
---
 core/util/grepSearch.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/core/util/grepSearch.ts b/core/util/grepSearch.ts
index be5b7ee082f..73ac3f72262 100644
--- a/core/util/grepSearch.ts
+++ b/core/util/grepSearch.ts
@@ -57,7 +57,7 @@ export function formatGrepSearchResults(
 
   let resultLines: string[] = [];
   for (const line of results.split("\n").filter((l) => !!l)) {
-    if (line.startsWith("./") || line === "--") {
+    if (line.startsWith("./") || line.startsWith(".\\") || line === "--") {
       processResult(resultLines); // process previous result
       resultLines = [line];
       numResults++;