public static function filter($text, $replacementText = null)
{
if (self::$words === null) {
self::$words = file(dirname(__FILE__) . self::BAD_WORDS_FILE, FILE_IGNORE_NEW_LINES);
}
if (extension_loaded('mbstring')) {
mb_internal_encoding("UTF-8");
foreach (self::$words as $word) {
$notFuzzyMatching = true;
$word = trim($word);
// detect empty lines and comments:
if (self::isCommentOrEmpty($word)) {
continue;
}
// fuzzy matching:
if (self::isFuzzyMatchingMb($word)) {
$notFuzzyMatching = false;
$word = trim($word, '[]');
}
// masked word:
$masked = self::getMaskedWordMb($word, $replacementText);
// compose regexp for the word:
$regexp = mb_substr($word, 0, 1);
for ($i = 1; $i < mb_strlen($word); $i++) {
$regexp .= "[^\\p{L}]*";
$regexp .= preg_quote(mb_substr($word, $i, 1));
}
// if not fuzzy matching:
if ($notFuzzyMatching) {
$regexp = "(^|[^\\p{L}])" . $regexp . "([^\\p{L}]|\$)";
$masked = '$1' . $masked . '$2';
}
$text = preg_replace("/{$regexp}/ui", $masked, $text);
}
} else {
foreach (self::$words as $word) {
$notFuzzyMatching = true;
$word = trim($word);
// detect empty lines and comments:
if (self::isCommentOrEmpty($word)) {
continue;
}
// fuzzy matching:
if (self::isFuzzyMatching($word)) {
$notFuzzyMatching = false;
$word = trim($word, '[]');
}
// masked word:
$masked = $replacementText !== null ? $replacementText : self::getMaskedWord($word);
// compose regexp for the word:
$regexp = substr($word, 0, 1);
for ($i = 1; $i < strlen($word); $i++) {
$regexp .= "[^\\p{L}]*";
$regexp .= preg_quote(substr($word, $i, 1));
}
// if not fuzzy matching:
if ($notFuzzyMatching) {
$regexp = "(^|[^\\p{L}])" . $regexp . "([^\\p{L}]|\$)";
$masked = '$1' . $masked . '$2';
}
$text = preg_replace("/{$regexp}/i", $masked, $text);
}
}
return $text;
}
/**
* @dataProvider dataFuzzyNegativeUnicode
*/
public function testFuzzyNegativeUnicode($input, $output)
{
WiseChatFilter::$words = array('[balls]', '[kość]');
if (extension_loaded(self::$mbExtension)) {
$this->assertEquals($output, WiseChatFilter::filter($input));
}
}
