No error for big text length (bug #264133)

diff --git a/adminer/include/functions.inc.php b/adminer/include/functions.inc.php
index 41e597dd4211465e0217e22307ef53010861373a..2d82cb786a3cceddba3013c15e2cd6a8d464f1ff 100644 (file)
--- a/adminer/include/functions.inc.php
+++ b/adminer/include/functions.inc.php
@@ -542,6 +542,16 @@ function is_utf8($val) {
        return (preg_match('~~u', $val) && !preg_match('~[\\0-\\x8\\xB\\xC\\xE-\\x1F]~', $val));
 }
 
+/** Create repeat pattern for preg
+* @param string
+* @param int
+* @return string
+*/
+function repeat_pattern($pattern, $length) {
+       // fix for Compilation failed: number too big in {} quantifier
+       return str_repeat("$pattern{0,65535}", $length / 65535) . "$pattern{0," . ($length % 65535) . "}"; // can create {0,0} which is OK
+}
+
 /** Shorten UTF-8 string
 * @param string
 * @param int
@@ -549,8 +559,8 @@ function is_utf8($val) {
 * @return string escaped string with appended ...
 */
 function shorten_utf8($string, $length = 80, $suffix = "") {
-       if (!preg_match("(^([\t\r\n -\x{FFFF}]{0,$length})($)?)u", $string, $match)) { // ~s causes trash in $match[2] under some PHP versions, (.|\n) is slow
-               preg_match("(^([\t\r\n -~]{0,$length})($)?)", $string, $match);
+       if (!preg_match("(^(" . repeat_pattern("[\t\r\n -\x{FFFF}]", $length) . ")($)?)u", $string, $match)) { // ~s causes trash in $match[2] under some PHP versions, (.|\n) is slow
+               preg_match("(^(" . repeat_pattern("[\t\r\n -~]", $length) . ")($)?)", $string, $match);
        }
        return h($match[1]) . $suffix . (isset($match[2]) ? "" : "<i>...</i>");
 }