mirror of
https://github.com/EGroupware/egroupware.git
synced 2024-11-24 00:43:20 +01:00
706 lines
25 KiB
PHP
706 lines
25 KiB
PHP
<?php
|
|
|
|
$GLOBALS['_HORDE_STRING_CHARSET'] = 'iso-8859-1';
|
|
|
|
/**
|
|
* The String:: class provides static methods for charset and locale safe
|
|
* string manipulation.
|
|
*
|
|
* $Horde: framework/Util/String.php,v 1.43.6.38 2009-09-15 16:36:14 jan Exp $
|
|
*
|
|
* Copyright 2003-2009 The Horde Project (http://www.horde.org/)
|
|
*
|
|
* See the enclosed file COPYING for license information (LGPL). If you
|
|
* did not receive this file, see http://www.fsf.org/copyleft/lgpl.html.
|
|
*
|
|
* @author Jan Schneider <jan@horde.org>
|
|
* @since Horde 3.0
|
|
* @package Horde_Util
|
|
*/
|
|
class String {
|
|
|
|
/**
|
|
* Caches the result of extension_loaded() calls.
|
|
*
|
|
* @param string $ext The extension name.
|
|
*
|
|
* @return boolean Is the extension loaded?
|
|
*
|
|
* @see Util::extensionExists()
|
|
*/
|
|
function extensionExists($ext)
|
|
{
|
|
static $cache = array();
|
|
|
|
if (!isset($cache[$ext])) {
|
|
$cache[$ext] = extension_loaded($ext);
|
|
}
|
|
|
|
return $cache[$ext];
|
|
}
|
|
|
|
/**
|
|
* Sets a default charset that the String:: methods will use if none is
|
|
* explicitly specified.
|
|
*
|
|
* @param string $charset The charset to use as the default one.
|
|
*/
|
|
function setDefaultCharset($charset)
|
|
{
|
|
$GLOBALS['_HORDE_STRING_CHARSET'] = $charset;
|
|
if (String::extensionExists('mbstring') &&
|
|
function_exists('mb_regex_encoding')) {
|
|
$old_error = error_reporting(0);
|
|
mb_regex_encoding(String::_mbstringCharset($charset));
|
|
error_reporting($old_error);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Converts a string from one charset to another.
|
|
*
|
|
* Works only if either the iconv or the mbstring extension
|
|
* are present and best if both are available.
|
|
* The original string is returned if conversion failed or none
|
|
* of the extensions were available.
|
|
*
|
|
* @param mixed $input The data to be converted. If $input is an an array,
|
|
* the array's values get converted recursively.
|
|
* @param string $from The string's current charset.
|
|
* @param string $to The charset to convert the string to. If not
|
|
* specified, the global variable
|
|
* $_HORDE_STRING_CHARSET will be used.
|
|
*
|
|
* @return mixed The converted input data.
|
|
*/
|
|
function convertCharset($input, $from, $to = null)
|
|
{
|
|
/* Don't bother converting numbers. */
|
|
if (is_numeric($input)) {
|
|
return $input;
|
|
}
|
|
|
|
/* Get the user's default character set if none passed in. */
|
|
if (is_null($to)) {
|
|
$to = $GLOBALS['_HORDE_STRING_CHARSET'];
|
|
}
|
|
|
|
/* If the from and to character sets are identical, return now. */
|
|
if ($from == $to) {
|
|
return $input;
|
|
}
|
|
$from = String::lower($from);
|
|
$to = String::lower($to);
|
|
if ($from == $to) {
|
|
return $input;
|
|
}
|
|
|
|
if (is_array($input)) {
|
|
$tmp = array();
|
|
reset($input);
|
|
while (list($key, $val) = each($input)) {
|
|
$tmp[String::_convertCharset($key, $from, $to)] = String::convertCharset($val, $from, $to);
|
|
}
|
|
return $tmp;
|
|
}
|
|
if (is_object($input)) {
|
|
// PEAR_Error objects are almost guaranteed to contain recursion,
|
|
// which will cause a segfault in PHP. We should never reach
|
|
// this line, but add a check and a log message to help the devs
|
|
// track down and fix this issue.
|
|
if (is_a($input, 'PEAR_Error')) {
|
|
Horde::logMessage('Called convertCharset() on a PEAR_Error object. ' . print_r($input, true), __FILE__, __LINE__, PEAR_LOG_DEBUG);
|
|
return '';
|
|
}
|
|
$vars = get_object_vars($input);
|
|
while (list($key, $val) = each($vars)) {
|
|
$input->$key = String::convertCharset($val, $from, $to);
|
|
}
|
|
return $input;
|
|
}
|
|
|
|
if (!is_string($input)) {
|
|
return $input;
|
|
}
|
|
|
|
return String::_convertCharset($input, $from, $to);
|
|
}
|
|
|
|
/**
|
|
* Internal function used to do charset conversion.
|
|
*
|
|
* @access private
|
|
*
|
|
* @param string $input See String::convertCharset().
|
|
* @param string $from See String::convertCharset().
|
|
* @param string $to See String::convertCharset().
|
|
*
|
|
* @return string The converted string.
|
|
*/
|
|
function _convertCharset($input, $from, $to)
|
|
{
|
|
$output = '';
|
|
$from_check = (($from == 'iso-8859-1') || ($from == 'us-ascii'));
|
|
$to_check = (($to == 'iso-8859-1') || ($to == 'us-ascii'));
|
|
|
|
/* Use utf8_[en|de]code() if possible and if the string isn't too
|
|
* large (less than 16 MB = 16 * 1024 * 1024 = 16777216 bytes) - these
|
|
* functions use more memory. */
|
|
if (strlen($input) < 16777216 || !(String::extensionExists('iconv') || String::extensionExists('mbstring'))) {
|
|
if ($from_check && ($to == 'utf-8')) {
|
|
return utf8_encode($input);
|
|
}
|
|
|
|
if (($from == 'utf-8') && $to_check) {
|
|
return utf8_decode($input);
|
|
}
|
|
}
|
|
|
|
/* First try iconv with transliteration. */
|
|
if (($from != 'utf7-imap') &&
|
|
($to != 'utf7-imap') &&
|
|
String::extensionExists('iconv')) {
|
|
/* We need to tack an extra character temporarily because of a bug
|
|
* in iconv() if the last character is not a 7 bit ASCII
|
|
* character. */
|
|
$oldTrackErrors = ini_set('track_errors', 1);
|
|
unset($php_errormsg);
|
|
$output = @iconv($from, $to . '//TRANSLIT', $input . 'x');
|
|
$output = (isset($php_errormsg)) ? false : String::substr($output, 0, -1, $to);
|
|
ini_set('track_errors', $oldTrackErrors);
|
|
}
|
|
|
|
/* Next try mbstring. */
|
|
if (!$output && String::extensionExists('mbstring')) {
|
|
$old_error = error_reporting(0);
|
|
$output = mb_convert_encoding($input, $to, String::_mbstringCharset($from));
|
|
error_reporting($old_error);
|
|
}
|
|
|
|
/* At last try imap_utf7_[en|de]code if appropriate. */
|
|
if (!$output && String::extensionExists('imap')) {
|
|
if ($from_check && ($to == 'utf7-imap')) {
|
|
return @imap_utf7_encode($input);
|
|
}
|
|
if (($from == 'utf7-imap') && $to_check) {
|
|
return @imap_utf7_decode($input);
|
|
}
|
|
}
|
|
|
|
return (!$output) ? $input : $output;
|
|
}
|
|
|
|
/**
|
|
* Makes a string lowercase.
|
|
*
|
|
* @param string $string The string to be converted.
|
|
* @param boolean $locale If true the string will be converted based on a
|
|
* given charset, locale independent else.
|
|
* @param string $charset If $locale is true, the charset to use when
|
|
* converting. If not provided the current charset.
|
|
*
|
|
* @return string The string with lowercase characters
|
|
*/
|
|
function lower($string, $locale = false, $charset = null)
|
|
{
|
|
static $lowers;
|
|
|
|
if ($locale) {
|
|
/* The existence of mb_strtolower() depends on the platform. */
|
|
if (String::extensionExists('mbstring') &&
|
|
function_exists('mb_strtolower')) {
|
|
if (is_null($charset)) {
|
|
$charset = $GLOBALS['_HORDE_STRING_CHARSET'];
|
|
}
|
|
$old_error = error_reporting(0);
|
|
$ret = mb_strtolower($string, String::_mbstringCharset($charset));
|
|
error_reporting($old_error);
|
|
if (!empty($ret)) {
|
|
return $ret;
|
|
}
|
|
}
|
|
return strtolower($string);
|
|
}
|
|
|
|
if (!isset($lowers)) {
|
|
$lowers = array();
|
|
}
|
|
if (!isset($lowers[$string])) {
|
|
$language = setlocale(LC_CTYPE, 0);
|
|
setlocale(LC_CTYPE, 'C');
|
|
$lowers[$string] = strtolower($string);
|
|
setlocale(LC_CTYPE, $language);
|
|
}
|
|
|
|
return $lowers[$string];
|
|
}
|
|
|
|
/**
|
|
* Makes a string uppercase.
|
|
*
|
|
* @param string $string The string to be converted.
|
|
* @param boolean $locale If true the string will be converted based on a
|
|
* given charset, locale independent else.
|
|
* @param string $charset If $locale is true, the charset to use when
|
|
* converting. If not provided the current charset.
|
|
*
|
|
* @return string The string with uppercase characters
|
|
*/
|
|
function upper($string, $locale = false, $charset = null)
|
|
{
|
|
static $uppers;
|
|
|
|
if ($locale) {
|
|
/* The existence of mb_strtoupper() depends on the
|
|
* platform. */
|
|
if (function_exists('mb_strtoupper')) {
|
|
if (is_null($charset)) {
|
|
$charset = $GLOBALS['_HORDE_STRING_CHARSET'];
|
|
}
|
|
$old_error = error_reporting(0);
|
|
$ret = mb_strtoupper($string, String::_mbstringCharset($charset));
|
|
error_reporting($old_error);
|
|
if (!empty($ret)) {
|
|
return $ret;
|
|
}
|
|
}
|
|
return strtoupper($string);
|
|
}
|
|
|
|
if (!isset($uppers)) {
|
|
$uppers = array();
|
|
}
|
|
if (!isset($uppers[$string])) {
|
|
$language = setlocale(LC_CTYPE, 0);
|
|
setlocale(LC_CTYPE, 'C');
|
|
$uppers[$string] = strtoupper($string);
|
|
setlocale(LC_CTYPE, $language);
|
|
}
|
|
|
|
return $uppers[$string];
|
|
}
|
|
|
|
/**
|
|
* Returns a string with the first letter capitalized if it is
|
|
* alphabetic.
|
|
*
|
|
* @param string $string The string to be capitalized.
|
|
* @param boolean $locale If true the string will be converted based on a
|
|
* given charset, locale independent else.
|
|
* @param string $charset The charset to use, defaults to current charset.
|
|
*
|
|
* @return string The capitalized string.
|
|
*/
|
|
function ucfirst($string, $locale = false, $charset = null)
|
|
{
|
|
if ($locale) {
|
|
$first = String::substr($string, 0, 1, $charset);
|
|
if (String::isAlpha($first, $charset)) {
|
|
$string = String::upper($first, true, $charset) . String::substr($string, 1, null, $charset);
|
|
}
|
|
} else {
|
|
$string = String::upper(substr($string, 0, 1), false) . substr($string, 1);
|
|
}
|
|
return $string;
|
|
}
|
|
|
|
/**
|
|
* Returns part of a string.
|
|
*
|
|
* @param string $string The string to be converted.
|
|
* @param integer $start The part's start position, zero based.
|
|
* @param integer $length The part's length.
|
|
* @param string $charset The charset to use when calculating the part's
|
|
* position and length, defaults to current
|
|
* charset.
|
|
*
|
|
* @return string The string's part.
|
|
*/
|
|
function substr($string, $start, $length = null, $charset = null)
|
|
{
|
|
if (is_null($length)) {
|
|
$length = String::length($string, $charset) - $start;
|
|
}
|
|
|
|
if ($length == 0) {
|
|
return '';
|
|
}
|
|
|
|
/* Try mbstring. */
|
|
if (String::extensionExists('mbstring')) {
|
|
if (is_null($charset)) {
|
|
$charset = $GLOBALS['_HORDE_STRING_CHARSET'];
|
|
}
|
|
$old_error = error_reporting(0);
|
|
$ret = mb_substr($string, $start, $length, String::_mbstringCharset($charset));
|
|
error_reporting($old_error);
|
|
/* mb_substr() returns empty string on failure. */
|
|
if (strlen($ret)) {
|
|
return $ret;
|
|
}
|
|
}
|
|
|
|
/* Try iconv. */
|
|
if (function_exists('iconv_substr')) {
|
|
if (is_null($charset)) {
|
|
$charset = $GLOBALS['_HORDE_STRING_CHARSET'];
|
|
}
|
|
|
|
$old_error = error_reporting(0);
|
|
$ret = iconv_substr($string, $start, $length, $charset);
|
|
error_reporting($old_error);
|
|
/* iconv_substr() returns false on failure. */
|
|
if ($ret !== false) {
|
|
return $ret;
|
|
}
|
|
}
|
|
|
|
return substr($string, $start, $length);
|
|
}
|
|
|
|
/**
|
|
* Returns the character (not byte) length of a string.
|
|
*
|
|
* @param string $string The string to return the length of.
|
|
* @param string $charset The charset to use when calculating the string's
|
|
* length.
|
|
*
|
|
* @return string The string's part.
|
|
*/
|
|
function length($string, $charset = null)
|
|
{
|
|
if (is_null($charset)) {
|
|
$charset = $GLOBALS['_HORDE_STRING_CHARSET'];
|
|
}
|
|
$charset = String::lower($charset);
|
|
if (String::extensionExists('mbstring')) {
|
|
$old_error = error_reporting(0);
|
|
$ret = mb_strlen($string, String::_mbstringCharset($charset));
|
|
error_reporting($old_error);
|
|
if (!empty($ret)) {
|
|
return $ret;
|
|
}
|
|
}
|
|
if ($charset == 'utf-8' || $charset == 'utf8') {
|
|
return strlen(utf8_decode($string));
|
|
}
|
|
return strlen($string);
|
|
}
|
|
|
|
/**
|
|
* Returns the numeric position of the first occurrence of $needle
|
|
* in the $haystack string.
|
|
*
|
|
* @param string $haystack The string to search through.
|
|
* @param string $needle The string to search for.
|
|
* @param integer $offset Allows to specify which character in haystack
|
|
* to start searching.
|
|
* @param string $charset The charset to use when searching for the
|
|
* $needle string.
|
|
*
|
|
* @return integer The position of first occurrence.
|
|
*/
|
|
function pos($haystack, $needle, $offset = 0, $charset = null)
|
|
{
|
|
if (String::extensionExists('mbstring')) {
|
|
if (is_null($charset)) {
|
|
$charset = $GLOBALS['_HORDE_STRING_CHARSET'];
|
|
}
|
|
$track_errors = ini_set('track_errors', 1);
|
|
$old_error = error_reporting(0);
|
|
$ret = mb_strpos($haystack, $needle, $offset, String::_mbstringCharset($charset));
|
|
error_reporting($old_error);
|
|
ini_set('track_errors', $track_errors);
|
|
if (!isset($php_errormsg)) {
|
|
return $ret;
|
|
}
|
|
}
|
|
return strpos($haystack, $needle, $offset);
|
|
}
|
|
|
|
/**
|
|
* Returns a string padded to a certain length with another string.
|
|
*
|
|
* This method behaves exactly like str_pad but is multibyte safe.
|
|
*
|
|
* @param string $input The string to be padded.
|
|
* @param integer $length The length of the resulting string.
|
|
* @param string $pad The string to pad the input string with. Must
|
|
* be in the same charset like the input string.
|
|
* @param const $type The padding type. One of STR_PAD_LEFT,
|
|
* STR_PAD_RIGHT, or STR_PAD_BOTH.
|
|
* @param string $charset The charset of the input and the padding
|
|
* strings.
|
|
*
|
|
* @return string The padded string.
|
|
*/
|
|
function pad($input, $length, $pad = ' ', $type = STR_PAD_RIGHT,
|
|
$charset = null)
|
|
{
|
|
$mb_length = String::length($input, $charset);
|
|
$sb_length = strlen($input);
|
|
$pad_length = String::length($pad, $charset);
|
|
|
|
/* Return if we already have the length. */
|
|
if ($mb_length >= $length) {
|
|
return $input;
|
|
}
|
|
|
|
/* Shortcut for single byte strings. */
|
|
if ($mb_length == $sb_length && $pad_length == strlen($pad)) {
|
|
return str_pad($input, $length, $pad, $type);
|
|
}
|
|
|
|
switch ($type) {
|
|
case STR_PAD_LEFT:
|
|
$left = $length - $mb_length;
|
|
$output = String::substr(str_repeat($pad, ceil($left / $pad_length)), 0, $left, $charset) . $input;
|
|
break;
|
|
case STR_PAD_BOTH:
|
|
$left = floor(($length - $mb_length) / 2);
|
|
$right = ceil(($length - $mb_length) / 2);
|
|
$output = String::substr(str_repeat($pad, ceil($left / $pad_length)), 0, $left, $charset) .
|
|
$input .
|
|
String::substr(str_repeat($pad, ceil($right / $pad_length)), 0, $right, $charset);
|
|
break;
|
|
case STR_PAD_RIGHT:
|
|
$right = $length - $mb_length;
|
|
$output = $input . String::substr(str_repeat($pad, ceil($right / $pad_length)), 0, $right, $charset);
|
|
break;
|
|
}
|
|
|
|
return $output;
|
|
}
|
|
|
|
/**
|
|
* Wraps the text of a message.
|
|
*
|
|
* @since Horde 3.2
|
|
*
|
|
* @param string $string String containing the text to wrap.
|
|
* @param integer $width Wrap the string at this number of
|
|
* characters.
|
|
* @param string $break Character(s) to use when breaking lines.
|
|
* @param boolean $cut Whether to cut inside words if a line
|
|
* can't be wrapped.
|
|
* @param string $charset Character set to use when breaking lines.
|
|
* @param boolean $line_folding Whether to apply line folding rules per
|
|
* RFC 822 or similar. The correct break
|
|
* characters including leading whitespace
|
|
* have to be specified too.
|
|
*
|
|
* @return string String containing the wrapped text.
|
|
*/
|
|
function wordwrap($string, $width = 75, $break = "\n", $cut = false,
|
|
$charset = null, $line_folding = false)
|
|
{
|
|
/* Get the user's default character set if none passed in. */
|
|
if (is_null($charset)) {
|
|
$charset = $GLOBALS['_HORDE_STRING_CHARSET'];
|
|
}
|
|
$charset = String::_mbstringCharset($charset);
|
|
$string = String::convertCharset($string, $charset, 'utf-8');
|
|
$wrapped = '';
|
|
|
|
while (String::length($string, 'utf-8') > $width) {
|
|
$line = String::substr($string, 0, $width, 'utf-8');
|
|
$string = String::substr($string, String::length($line, 'utf-8'), null, 'utf-8');
|
|
// Make sure didn't cut a word, unless we want hard breaks anyway.
|
|
if (!$cut && preg_match('/^(.+?)((\s|\r?\n).*)/us', $string, $match)) {
|
|
$line .= $match[1];
|
|
$string = $match[2];
|
|
}
|
|
// Wrap at existing line breaks.
|
|
if (preg_match('/^(.*?)(\r?\n)(.*)$/u', $line, $match)) {
|
|
$wrapped .= $match[1] . $match[2];
|
|
$string = $match[3] . $string;
|
|
continue;
|
|
}
|
|
// Wrap at the last colon or semicolon followed by a whitespace if
|
|
// doing line folding.
|
|
if ($line_folding &&
|
|
preg_match('/^(.*?)(;|:)(\s+.*)$/u', $line, $match)) {
|
|
$wrapped .= $match[1] . $match[2] . $break;
|
|
$string = $match[3] . $string;
|
|
continue;
|
|
}
|
|
// Wrap at the last whitespace of $line.
|
|
if ($line_folding) {
|
|
$sub = '(.+[^\s])';
|
|
} else {
|
|
$sub = '(.*)';
|
|
}
|
|
if (preg_match('/^' . $sub . '(\s+)(.*)$/u', $line, $match)) {
|
|
$wrapped .= $match[1] . $break;
|
|
$string = ($line_folding ? $match[2] : '') . $match[3] . $string;
|
|
continue;
|
|
}
|
|
// Hard wrap if necessary.
|
|
if ($cut) {
|
|
$wrapped .= $line . $break;
|
|
continue;
|
|
}
|
|
$wrapped .= $line;
|
|
}
|
|
|
|
return String::convertCharset($wrapped . $string, 'utf-8', $charset);
|
|
}
|
|
|
|
/**
|
|
* Wraps the text of a message.
|
|
*
|
|
* @param string $text String containing the text to wrap.
|
|
* @param integer $length Wrap $text at this number of characters.
|
|
* @param string $break_char Character(s) to use when breaking lines.
|
|
* @param string $charset Character set to use when breaking lines.
|
|
* @param boolean $quote Ignore lines that are wrapped with the '>'
|
|
* character (RFC 2646)? If true, we don't
|
|
* remove any padding whitespace at the end of
|
|
* the string.
|
|
*
|
|
* @return string String containing the wrapped text.
|
|
*/
|
|
function wrap($text, $length = 80, $break_char = "\n", $charset = null,
|
|
$quote = false)
|
|
{
|
|
$paragraphs = array();
|
|
|
|
foreach (preg_split('/\r?\n/', $text) as $input) {
|
|
if ($quote && (strpos($input, '>') === 0)) {
|
|
$line = $input;
|
|
} else {
|
|
/* We need to handle the Usenet-style signature line
|
|
* separately; since the space after the two dashes is
|
|
* REQUIRED, we don't want to trim the line. */
|
|
if ($input != '-- ') {
|
|
$input = rtrim($input);
|
|
}
|
|
$line = String::wordwrap($input, $length, $break_char, false, $charset);
|
|
}
|
|
|
|
$paragraphs[] = $line;
|
|
}
|
|
|
|
return implode($break_char, $paragraphs);
|
|
}
|
|
|
|
/**
|
|
* Returns true if the every character in the parameter is an alphabetic
|
|
* character.
|
|
*
|
|
* @param $string The string to test.
|
|
* @param $charset The charset to use when testing the string.
|
|
*
|
|
* @return boolean True if the parameter was alphabetic only.
|
|
*/
|
|
function isAlpha($string, $charset = null)
|
|
{
|
|
if (!String::extensionExists('mbstring')) {
|
|
return ctype_alpha($string);
|
|
}
|
|
|
|
$charset = String::_mbstringCharset($charset);
|
|
$old_charset = mb_regex_encoding();
|
|
$old_error = error_reporting(0);
|
|
|
|
if ($charset != $old_charset) {
|
|
mb_regex_encoding($charset);
|
|
}
|
|
$alpha = !mb_ereg_match('[^[:alpha:]]', $string);
|
|
if ($charset != $old_charset) {
|
|
mb_regex_encoding($old_charset);
|
|
}
|
|
|
|
error_reporting($old_error);
|
|
|
|
return $alpha;
|
|
}
|
|
|
|
/**
|
|
* Returns true if ever character in the parameter is a lowercase letter in
|
|
* the current locale.
|
|
*
|
|
* @param $string The string to test.
|
|
* @param $charset The charset to use when testing the string.
|
|
*
|
|
* @return boolean True if the parameter was lowercase.
|
|
*/
|
|
function isLower($string, $charset = null)
|
|
{
|
|
return ((String::lower($string, true, $charset) === $string) &&
|
|
String::isAlpha($string, $charset));
|
|
}
|
|
|
|
/**
|
|
* Returns true if every character in the parameter is an uppercase letter
|
|
* in the current locale.
|
|
*
|
|
* @param string $string The string to test.
|
|
* @param string $charset The charset to use when testing the string.
|
|
*
|
|
* @return boolean True if the parameter was uppercase.
|
|
*/
|
|
function isUpper($string, $charset = null)
|
|
{
|
|
return ((String::upper($string, true, $charset) === $string) &&
|
|
String::isAlpha($string, $charset));
|
|
}
|
|
|
|
/**
|
|
* Performs a multibyte safe regex match search on the text provided.
|
|
*
|
|
* @since Horde 3.1
|
|
*
|
|
* @param string $text The text to search.
|
|
* @param array $regex The regular expressions to use, without perl
|
|
* regex delimiters (e.g. '/' or '|').
|
|
* @param string $charset The character set of the text.
|
|
*
|
|
* @return array The matches array from the first regex that matches.
|
|
*/
|
|
function regexMatch($text, $regex, $charset = null)
|
|
{
|
|
if (!empty($charset)) {
|
|
$regex = String::convertCharset($regex, $charset, 'utf-8');
|
|
$text = String::convertCharset($text, $charset, 'utf-8');
|
|
}
|
|
|
|
$matches = array();
|
|
foreach ($regex as $val) {
|
|
if (preg_match('/' . $val . '/u', $text, $matches)) {
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (!empty($charset)) {
|
|
$matches = String::convertCharset($matches, 'utf-8', $charset);
|
|
}
|
|
|
|
return $matches;
|
|
}
|
|
|
|
/**
|
|
* Workaround charsets that don't work with mbstring functions.
|
|
*
|
|
* @access private
|
|
*
|
|
* @param string $charset The original charset.
|
|
*
|
|
* @return string The charset to use with mbstring functions.
|
|
*/
|
|
function _mbstringCharset($charset)
|
|
{
|
|
/* mbstring functions do not handle the 'ks_c_5601-1987' &
|
|
* 'ks_c_5601-1989' charsets. However, these charsets are used, for
|
|
* example, by various versions of Outlook to send Korean characters.
|
|
* Use UHC (CP949) encoding instead. See, e.g.,
|
|
* http://lists.w3.org/Archives/Public/ietf-charsets/2001AprJun/0030.html */
|
|
if (in_array(String::lower($charset), array('ks_c_5601-1987', 'ks_c_5601-1989'))) {
|
|
$charset = 'UHC';
|
|
}
|
|
|
|
return $charset;
|
|
}
|
|
|
|
}
|