Do extended UTF8->ASCII transliteration using a large conversion table.

3.0/modules/transliterate/module.info

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+name = "Transliterate"
+description = "Transliterate UTF8 text to ASCII equivalents."
+version = 1

3.0/modules/transliterate/tests/Transliterate_Helper_Test.php

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+<?php defined("SYSPATH") or die("No direct script access.");
+/**
+ * Gallery - a web based photo album viewer and editor
+ * Copyright (C) 2000-2011 Bharat Mediratta
+ *
+ * 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.
+ */
+class Transliterate_Helper_Test extends Gallery_Unit_Test_Case {
+  public function utf8_to_ascii_test() {
+    $this->assert_equal("Te glossa mou edosan ellenike",
+                        transliterate::utf8_to_ascii("Τη γλώσσα μου έδωσαν ελληνική"));
+    $this->assert_equal("Na bierieghu pustynnykh voln",
+                        transliterate::utf8_to_ascii("На берегу пустынных волн"));
+    $this->assert_equal("vepxis tqaosani shot`a rust`aveli",
+                        transliterate::utf8_to_ascii("ვეპხის ტყაოსანი შოთა რუსთაველი"));
+    $this->assert_equal("WoNengTunXiaBoLiErBuShangShenTi",
+                        transliterate::utf8_to_ascii("我能吞下玻璃而不伤身体"));
+  }
+}