SearchWP's built in lenient accent conversion table

from-class.indexer.php

<?php

$conversions = array(
	'À' => 'a', 'Á' => 'a', 'Â' => 'a', 'Ã' => 'a', 'Ä' => 'a', 'Å' => 'a', 'Æ' => 'a', 'à' => 'a', 'á' => 'a', 'â' => 'a', 'ã' => 'a', 'ä' => 'a', 'å' => 'a', 'æ' => 'a',
	'Ò' => 'o', 'Ó' => 'o', 'Ô' => 'o', 'Õ' => 'o', 'Ö' => 'o', 'Ø' => 'o', 'ò' => 'o', 'ó' => 'o', 'ô' => 'o', 'õ' => 'o', 'ö' => 'o', 'ø' => 'o',
	'È' => 'e', 'É' => 'e', 'Ê' => 'e', 'Ë' => 'e', 'è' => 'e', 'é' => 'e', 'ê' => 'e', 'ë' => 'e', 'ð' => 'e',
	'Ç' => 'c', 'ç' => 'c',
	'Ð' => 'd',
	'Ì' => 'i', 'Í' => 'i', 'Î' => 'i', 'Ï' => 'i', 'ì' => 'i', 'í' => 'i', 'î' => 'i', 'ï' => 'i',
	'Ù' => 'u', 'Ú' => 'u', 'Û' => 'u', 'Ü' => 'u', 'ù' => 'u', 'ú' => 'u', 'û' => 'u', 'ü' => 'u',
	'Ñ' => 'n', 'ñ' => 'n',
	'Þ' => 't',
	'ß' => 's',
	'ÿ' => 'y', 'ý' => 'y',

	// greek
	'Ά' => 'Α', 'ά' => 'α', 'Έ' => 'Ε', 'έ' => 'ε', 'Ή' => 'Η', 'ή' => 'η', 'Ί' => 'Ι', 'ί' => 'ι', 'Ό' => 'Ο', 'ό' => 'ο', 'Ύ' => 'Υ', 'ύ' => 'υ', 'Ώ' => 'Ω', 'ώ' => 'ω', 'ϊ' => 'ι', 'ϋ' => 'υ', 'Ϊ' => 'ι', 'Ϋ' => 'Υ',
);