From a64c488e21829182582bb43b2c9e399fe6ff2149 Mon Sep 17 00:00:00 2001
From: Hugo Sales <hugo@hsal.es>
Date: Wed, 24 Nov 2021 15:53:23 +0000
Subject: [PATCH] [PLUGINS] Add StemWord plugin, which stems words, given a
 language. Currently used for tags

---
 plugins/StemWord/StemWord.php  | 37 ++++++++++++++++++++++++++++++++++
 plugins/StemWord/composer.json |  5 +++++
 2 files changed, 42 insertions(+)
 create mode 100644 plugins/StemWord/StemWord.php
 create mode 100644 plugins/StemWord/composer.json

diff --git a/plugins/StemWord/StemWord.php b/plugins/StemWord/StemWord.php
new file mode 100644
index 0000000000..899e8ac529
--- /dev/null
+++ b/plugins/StemWord/StemWord.php
@@ -0,0 +1,37 @@
+<?php
+
+declare(strict_types = 1);
+
+// {{{ License
+
+// This file is part of GNU social - https://www.gnu.org/software/social
+//
+// GNU social is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// GNU social is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU Affero General Public License for more details.
+//
+// You should have received a copy of the GNU Affero General Public License
+// along with GNU social.  If not, see <http://www.gnu.org/licenses/>.
+
+// }}}
+
+namespace Plugin\StemWord;
+
+use App\Core\Event;
+use App\Core\Modules\Plugin;
+use Wamania\Snowball\StemmerFactory;
+
+class StemWord extends Plugin
+{
+    public function onStemWord(string $language, string $word, string &$out)
+    {
+        $out = StemmerFactory::create($language)->stem($word);
+        return Event::stop;
+    }
+}
diff --git a/plugins/StemWord/composer.json b/plugins/StemWord/composer.json
new file mode 100644
index 0000000000..4c472d8bdf
--- /dev/null
+++ b/plugins/StemWord/composer.json
@@ -0,0 +1,5 @@
+{
+  "require": {
+    "wamania/php-stemmer": "^3.0"
+  }
+}