From 19f32f7b0981bdfc0da30df011ce1ef3df44dbe5 Mon Sep 17 00:00:00 2001
From: Mark Felder <feld@feld.me>
Date: Thu, 31 Jul 2025 18:17:58 -0700
Subject: [PATCH] Strip hashtag prefixes

Users may actually type in a literal hashtag into the search, so this will ensure it still returns results.
---
 lib/pleroma/hashtag.ex        |  2 ++
 test/pleroma/hashtag_test.exs | 20 ++++++++++++++++++++
 2 files changed, 22 insertions(+)

diff --git a/lib/pleroma/hashtag.ex b/lib/pleroma/hashtag.ex
index 8cffe840f..507bc09bd 100644
--- a/lib/pleroma/hashtag.ex
+++ b/lib/pleroma/hashtag.ex
@@ -141,6 +141,8 @@ defmodule Pleroma.Hashtag do
       |> String.trim()
       |> String.split(~r/\s+/)
       |> Enum.filter(&(&1 != ""))
+      |> Enum.map(&String.trim_leading(&1, "#"))
+      |> Enum.filter(&(&1 != ""))
 
     if Enum.empty?(search_terms) do
       []
diff --git a/test/pleroma/hashtag_test.exs b/test/pleroma/hashtag_test.exs
index d15c7d1d9..0e16b8155 100644
--- a/test/pleroma/hashtag_test.exs
+++ b/test/pleroma/hashtag_test.exs
@@ -122,5 +122,25 @@ defmodule Pleroma.HashtagTest do
       assert "racecar" in results
       assert "nascar" in results
     end
+
+    test "handles hashtag symbols in search query" do
+      {:ok, _} = Hashtag.get_or_create_by_name("computer")
+      {:ok, _} = Hashtag.get_or_create_by_name("laptop")
+      {:ok, _} = Hashtag.get_or_create_by_name("phone")
+
+      results_with_hash = Hashtag.search("#computer #laptop")
+      results_without_hash = Hashtag.search("computer laptop")
+
+      assert results_with_hash == results_without_hash
+
+      results_mixed = Hashtag.search("#computer laptop #phone")
+      assert "computer" in results_mixed
+      assert "laptop" in results_mixed
+      assert "phone" in results_mixed
+
+      results_only_hash = Hashtag.search("#computer")
+      results_no_hash = Hashtag.search("computer")
+      assert results_only_hash == results_no_hash
+    end
   end
 end