faster it::replace, tests

1 files changed, 10 insertions, 5 deletions

diff --git a/it.class b/it.class
index 772364a..3055cb0 100644
--- a/it.class
+++ b/it.class
@@ -397,12 +397,17 @@ static function replace($replacements, $string, $p = array())
 	$patterns = array();
 
 	foreach (array_keys($replacements) as $pattern)
-		$patterns[] = it::convertregex($pattern, $p);
+		$patterns[] = !preg_match('/\\\\[wb]|[!\x80-\xff]|\[\[:/i', $pattern) && !$p ? "!$pattern!i" : it::convertregex($complex = $pattern, $p);
 
-	$oldlocale = setlocale(LC_CTYPE, 0);
-	setlocale(LC_CTYPE, 'de_CH');
-	$result = preg_replace($patterns, array_values($replacements), $string, isset($p['limit']) ? $p['limit'] : -1);
-	setlocale(LC_CTYPE, $oldlocale);
+	if (!$complex)
+		$result = preg_replace($patterns, array_values($replacements), $string);
+	else
+	{
+		$oldlocale = setlocale(LC_CTYPE, 0);
+		setlocale(LC_CTYPE, 'de_CH');
+		$result = preg_replace($patterns, array_values($replacements), $string, isset($p['limit']) ? $p['limit'] : -1);
+		setlocale(LC_CTYPE, $oldlocale);
+	}
 
 	return $result;
 }