Reverting r76928, causes segfault

diff --git a/includes/IP.php b/includes/IP.php
index 356c770..9aeba39 100644 (file)
--- a/includes/IP.php
+++ b/includes/IP.php
@@ -42,7 +42,7 @@ define( 'RE_IPV6_ADD',
        '|' . // has no "::"
                RE_IPV6_WORD . '(?::' . RE_IPV6_WORD . '){7}' .
        '|' . // contains one "::" in the middle (awkward regex for PCRE 4.0+ compatibility)
-               RE_IPV6_WORD . '(?::(?P<abn>(?!(?P=abn)):(?P<iabn>))?' . RE_IPV6_WORD . '){1,6}(?P=iabn)' .
+               RE_IPV6_WORD . '(?::(?!(?P=abn))(?P<abn>:(?P<iabn>))?' . RE_IPV6_WORD . '){1,6}(?P=iabn)' .
                // NOTE: (?!(?P=abn)) fails iff "::" used twice; (?P=iabn) passes iff a "::" was found.
                
                // Better regexp (PCRE 7.2+ only), allows intuitive regex concatenation