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修改更为准确的字符串处理函数

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This commit is contained in:
joyqi 2014-01-10 19:12:39 +08:00
parent daf8e1ee57
commit 68c4f7b912
2 changed files with 39 additions and 11 deletions
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37
var/Typecho/Common.php
View File

@ -731,15 +731,26 @@ EOF;
*/
public static function subStr($str, $start, $length, $trim = "...")
{
if (function_exists('mb_get_info')) {
$iLength = mb_strlen($str, self::$charset);
$str = mb_substr($str, $start, $length, self::$charset);
return ($length < $iLength - $start) ? $str . $trim : $str;
} else {
preg_match_all("/[\x01-\x7f]|[\xc2-\xdf][\x80-\xbf]|\xe0[\xa0-\xbf][\x80-\xbf]|[\xe1-\xef][\x80-\xbf][\x80-\xbf]|\xf0[\x90-\xbf][\x80-\xbf][\x80-\xbf]|[\xf1-\xf7][\x80-\xbf][\x80-\xbf][\x80-\xbf]/", $str, $info);
$str = join("", array_slice($info[0], $start, $length));
return ($length < (sizeof($info[0]) - $start)) ? $str . $trim : $str;
if (!strlen($str)) {
return '';
}
$iLength = self::strLen($str) - $start;
$tLength = $length < $iLength ? ($length - self::strLen($trim)) : $length;
if (function_exists('mb_get_info')) {
$str = mb_substr($str, $start, $tLength, self::$charset);
} else {
if ('UTF-8' == strtoupper(self::$charset)) {
if (preg_match_all("/./u", $str, $matches)) {
$str = implode('', array_slice($matches[0], $start, $tLength));
}
} else {
$str = substr($str, $start, $tLength);
}
}
return $length < $iLength ? ($str . $trim) : $str;
}
/**
@ -754,8 +765,8 @@ EOF;
if (function_exists('mb_get_info')) {
return mb_strlen($str, self::$charset);
} else {
preg_match_all("/[\x01-\x7f]|[\xc2-\xdf][\x80-\xbf]|\xe0[\xa0-\xbf][\x80-\xbf]|[\xe1-\xef][\x80-\xbf][\x80-\xbf]|\xf0[\x90-\xbf][\x80-\xbf][\x80-\xbf]|[\xf1-\xf7][\x80-\xbf][\x80-\xbf][\x80-\xbf]/", $str, $info);
return sizeof($info[0]);
return 'UTF-8' == strtoupper(self::$charset)
? strlen(utf8_decode($str)) : strlen($info[0]);
}
}
@ -792,12 +803,16 @@ EOF;
}
$str = $return;
} else if ('UTF-8' == strtoupper(self::$charset)) {
if (preg_match_all("/[\w" . preg_quote('_-') . "]+/u", $str, $matches)) {
$str = implode('-', $matches[0]);
}
} else {
$str = str_replace(array("'", ":", "\\", "/", '"'), "", $str);
$str = str_replace(array("+", ",", ' ', '，', ' ', ".", "?", "=", "&", "!", "<", ">", "(", ")", "[", "]", "{", "}"), "-", $str);
$str = trim($str, '-');
}
$str = trim($str, '-_');
$str = !strlen($str) ? $default : $str;
return substr($str, 0, $maxLength);
}

13
var/Widget/Upload.php
View File

@ -54,6 +54,19 @@ class Widget_Upload extends Widget_Abstract_Contents implements Widget_Interface
return self::makeUploadDir($path);
}
/**
* 获取安全的文件名
*
* @param string $name
* @static
* @access private
* @return string
*/
private static function getSafeName($name)
{
preg_split("/(\/|\\\|:)/"
}
/**
* 上传文件处理函数,如果需要实现自己的文件哈希或者特殊的文件系统,请在options表里把uploadHandle改成自己的函数
*