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No error for big text length (bug #264133)

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This commit is contained in:
Jakub Vrana 2011-01-10 17:23:47 +01:00
parent 5e4450ba11
commit 13155372b5
1 changed files with 12 additions and 2 deletions
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14
adminer/include/functions.inc.php
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@ -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>");
}