1 files changed, 44 insertions, 0 deletions
diff --git a/includes/libs/replacers/HashtableReplacer.php b/includes/libs/replacers/HashtableReplacer.php
new file mode 100644
index 00000000..b3c219d4
--- /dev/null
+++ b/includes/libs/replacers/HashtableReplacer.php
@@ -0,0 +1,44 @@
+<?php
+/**
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ * http://www.gnu.org/copyleft/gpl.html
+ *
+ * @file
+ */
+
+/**
+ * Class to perform replacement based on a simple hashtable lookup
+ */
+class HashtableReplacer extends Replacer {
+	private $table, $index;
+
+	/**
+	 * @param array $table
+	 * @param int $index
+	 */
+	public function __construct( $table, $index = 0 ) {
+		$this->table = $table;
+		$this->index = $index;
+	}
+
+	/**
+	 * @param array $matches
+	 * @return mixed
+	 */
+	public function replace( array $matches ) {
+		return $this->table[$matches[$this->index]];
+	}
+}
+