support grep -v

1 files changed, 5 insertions, 4 deletions

diff --git a/it.class b/it.class
index 8e8be22..c537ae7 100644
--- a/it.class
+++ b/it.class
@@ -459,16 +459,17 @@ static function replace($replacements, $string, $p = array())
 
 /**
  * Returns only the array elements matching the given regex
- * @param $pattern Regex to match against
- * @param $array   array to grep
+ * @param $pattern     Regex to match against
+ * @param $array       array to grep
+ * @param $p           parameters for it::match or 'invert' => true to return non-matching lines
  * @return New array
  */
 static function grep($pattern, $array, $p = array())
 {
 	if (!preg_match('/\\\\[wb]|[!\x80-\xff]|\[\[:/i', $pattern) && !$p)
-		$result = preg_grep('!' . $pattern . '!i' . (ini_get('default_charset') == 'utf-8' ? 'u' : ''), $array); # fast path for simple patterns
+		$result = preg_grep('!' . $pattern . '!i' . (ini_get('default_charset') == 'utf-8' ? 'u' : ''), $array, $p['invert'] ? PREG_GREP_INVERT : 0); # fast path
 	else
-		$result = preg_grep(it::convertregex($pattern, $p), $array);
+		$result = preg_grep(it::convertregex($pattern, $p), $array, $p['invert'] ? PREG_GREP_INVERT : 0);
 
 	return $result;
 }