879 lines
25 KiB
PHP
879 lines
25 KiB
PHP
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<?php
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/**
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* Multibyte handling methods.
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*
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* CakePHP(tm) : Rapid Development Framework (http://cakephp.org)
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* Copyright (c) Cake Software Foundation, Inc. (http://cakefoundation.org)
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*
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* Licensed under The MIT License
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* For full copyright and license information, please see the LICENSE.txt
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* Redistributions of files must retain the above copyright notice.
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*
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* @copyright Copyright (c) Cake Software Foundation, Inc. (http://cakefoundation.org)
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* @link http://cakephp.org CakePHP(tm) Project
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* @package Cake.I18n
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* @since CakePHP(tm) v 1.2.0.6833
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* @license http://www.opensource.org/licenses/mit-license.php MIT License
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*/
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/**
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* Multibyte handling methods.
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*
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* @package Cake.I18n
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*/
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class Multibyte {
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/**
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* Holds the case folding values
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*
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* @var array
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*/
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protected static $_caseFold = array();
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/**
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* Holds an array of Unicode code point ranges
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*
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* @var array
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*/
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protected static $_codeRange = array();
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/**
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* Holds the current code point range
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*
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* @var string
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*/
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protected static $_table = null;
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/**
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* Converts a multibyte character string
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* to the decimal value of the character
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*
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* @param string $string
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* @return array
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*/
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public static function utf8($string) {
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$map = array();
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$values = array();
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$find = 1;
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$length = strlen($string);
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for ($i = 0; $i < $length; $i++) {
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$value = ord($string[$i]);
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if ($value < 128) {
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$map[] = $value;
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} else {
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if (empty($values)) {
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$find = ($value < 224) ? 2 : 3;
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}
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$values[] = $value;
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if (count($values) === $find) {
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if ($find == 3) {
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$map[] = (($values[0] % 16) * 4096) + (($values[1] % 64) * 64) + ($values[2] % 64);
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} else {
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$map[] = (($values[0] % 32) * 64) + ($values[1] % 64);
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}
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$values = array();
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$find = 1;
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}
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}
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}
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return $map;
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}
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/**
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* Converts the decimal value of a multibyte character string
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* to a string
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*
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* @param array $array
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* @return string
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*/
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public static function ascii($array) {
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$ascii = '';
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foreach ($array as $utf8) {
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if ($utf8 < 128) {
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$ascii .= chr($utf8);
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} elseif ($utf8 < 2048) {
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$ascii .= chr(192 + (($utf8 - ($utf8 % 64)) / 64));
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$ascii .= chr(128 + ($utf8 % 64));
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} else {
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$ascii .= chr(224 + (($utf8 - ($utf8 % 4096)) / 4096));
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$ascii .= chr(128 + ((($utf8 % 4096) - ($utf8 % 64)) / 64));
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$ascii .= chr(128 + ($utf8 % 64));
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}
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}
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return $ascii;
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}
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/**
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* Find position of first occurrence of a case-insensitive string.
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*
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* @param string $haystack The string from which to get the position of the first occurrence of $needle.
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* @param string $needle The string to find in $haystack.
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* @param integer $offset The position in $haystack to start searching.
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* @return integer|boolean The numeric position of the first occurrence of $needle in the $haystack string,
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* or false if $needle is not found.
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*/
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public static function stripos($haystack, $needle, $offset = 0) {
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if (Multibyte::checkMultibyte($haystack)) {
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$haystack = Multibyte::strtoupper($haystack);
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$needle = Multibyte::strtoupper($needle);
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return Multibyte::strpos($haystack, $needle, $offset);
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}
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return stripos($haystack, $needle, $offset);
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}
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/**
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* Finds first occurrence of a string within another, case insensitive.
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*
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* @param string $haystack The string from which to get the first occurrence of $needle.
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* @param string $needle The string to find in $haystack.
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* @param boolean $part Determines which portion of $haystack this function returns.
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* If set to true, it returns all of $haystack from the beginning to the first occurrence of $needle.
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* If set to false, it returns all of $haystack from the first occurrence of $needle to the end,
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* Default value is false.
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* @return integer|boolean The portion of $haystack, or false if $needle is not found.
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*/
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public static function stristr($haystack, $needle, $part = false) {
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$php = (PHP_VERSION < 5.3);
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if (($php && $part) || Multibyte::checkMultibyte($haystack)) {
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$check = Multibyte::strtoupper($haystack);
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$check = Multibyte::utf8($check);
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$found = false;
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$haystack = Multibyte::utf8($haystack);
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$haystackCount = count($haystack);
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$needle = Multibyte::strtoupper($needle);
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$needle = Multibyte::utf8($needle);
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$needleCount = count($needle);
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$parts = array();
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$position = 0;
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while (($found === false) && ($position < $haystackCount)) {
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if (isset($needle[0]) && $needle[0] === $check[$position]) {
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for ($i = 1; $i < $needleCount; $i++) {
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if ($needle[$i] !== $check[$position + $i]) {
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break;
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}
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}
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if ($i === $needleCount) {
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$found = true;
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}
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}
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if (!$found) {
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$parts[] = $haystack[$position];
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unset($haystack[$position]);
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}
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$position++;
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}
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if ($found && $part && !empty($parts)) {
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return Multibyte::ascii($parts);
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} elseif ($found && !empty($haystack)) {
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return Multibyte::ascii($haystack);
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}
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return false;
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}
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if (!$php) {
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return stristr($haystack, $needle, $part);
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}
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return stristr($haystack, $needle);
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}
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/**
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* Get string length.
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*
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* @param string $string The string being checked for length.
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* @return integer The number of characters in string $string
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*/
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public static function strlen($string) {
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if (Multibyte::checkMultibyte($string)) {
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$string = Multibyte::utf8($string);
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return count($string);
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}
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return strlen($string);
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}
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/**
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* Find position of first occurrence of a string.
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*
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* @param string $haystack The string being checked.
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* @param string $needle The position counted from the beginning of haystack.
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* @param integer $offset The search offset. If it is not specified, 0 is used.
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* @return integer|boolean The numeric position of the first occurrence of $needle in the $haystack string.
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* If $needle is not found, it returns false.
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*/
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public static function strpos($haystack, $needle, $offset = 0) {
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if (Multibyte::checkMultibyte($haystack)) {
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$found = false;
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$haystack = Multibyte::utf8($haystack);
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$haystackCount = count($haystack);
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$needle = Multibyte::utf8($needle);
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$needleCount = count($needle);
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$position = $offset;
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while (($found === false) && ($position < $haystackCount)) {
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if (isset($needle[0]) && $needle[0] === $haystack[$position]) {
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for ($i = 1; $i < $needleCount; $i++) {
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if ($needle[$i] !== $haystack[$position + $i]) {
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break;
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}
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}
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if ($i === $needleCount) {
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$found = true;
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$position--;
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}
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}
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$position++;
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}
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if ($found) {
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return $position;
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}
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return false;
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}
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return strpos($haystack, $needle, $offset);
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}
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/**
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* Finds the last occurrence of a character in a string within another.
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*
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* @param string $haystack The string from which to get the last occurrence of $needle.
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* @param string $needle The string to find in $haystack.
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* @param boolean $part Determines which portion of $haystack this function returns.
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* If set to true, it returns all of $haystack from the beginning to the last occurrence of $needle.
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* If set to false, it returns all of $haystack from the last occurrence of $needle to the end,
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* Default value is false.
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* @return string|boolean The portion of $haystack. or false if $needle is not found.
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*/
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public static function strrchr($haystack, $needle, $part = false) {
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$check = Multibyte::utf8($haystack);
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$found = false;
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$haystack = Multibyte::utf8($haystack);
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$haystackCount = count($haystack);
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$matches = array_count_values($check);
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$needle = Multibyte::utf8($needle);
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$needleCount = count($needle);
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$parts = array();
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$position = 0;
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while (($found === false) && ($position < $haystackCount)) {
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if (isset($needle[0]) && $needle[0] === $check[$position]) {
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for ($i = 1; $i < $needleCount; $i++) {
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if ($needle[$i] !== $check[$position + $i]) {
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if ($needle[$i] === $check[($position + $i) - 1]) {
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$found = true;
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}
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unset($parts[$position - 1]);
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$haystack = array_merge(array($haystack[$position]), $haystack);
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break;
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}
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}
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if (isset($matches[$needle[0]]) && $matches[$needle[0]] > 1) {
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$matches[$needle[0]] = $matches[$needle[0]] - 1;
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} elseif ($i === $needleCount) {
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$found = true;
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}
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}
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if (!$found && isset($haystack[$position])) {
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$parts[] = $haystack[$position];
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unset($haystack[$position]);
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}
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$position++;
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}
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if ($found && $part && !empty($parts)) {
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return Multibyte::ascii($parts);
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} elseif ($found && !empty($haystack)) {
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return Multibyte::ascii($haystack);
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}
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return false;
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}
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/**
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* Finds the last occurrence of a character in a string within another, case insensitive.
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*
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* @param string $haystack The string from which to get the last occurrence of $needle.
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* @param string $needle The string to find in $haystack.
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* @param boolean $part Determines which portion of $haystack this function returns.
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* If set to true, it returns all of $haystack from the beginning to the last occurrence of $needle.
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* If set to false, it returns all of $haystack from the last occurrence of $needle to the end,
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* Default value is false.
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* @return string|boolean The portion of $haystack. or false if $needle is not found.
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*/
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public static function strrichr($haystack, $needle, $part = false) {
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$check = Multibyte::strtoupper($haystack);
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$check = Multibyte::utf8($check);
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$found = false;
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$haystack = Multibyte::utf8($haystack);
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$haystackCount = count($haystack);
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$matches = array_count_values($check);
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$needle = Multibyte::strtoupper($needle);
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$needle = Multibyte::utf8($needle);
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$needleCount = count($needle);
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$parts = array();
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$position = 0;
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while (($found === false) && ($position < $haystackCount)) {
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if (isset($needle[0]) && $needle[0] === $check[$position]) {
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for ($i = 1; $i < $needleCount; $i++) {
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if ($needle[$i] !== $check[$position + $i]) {
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if ($needle[$i] === $check[($position + $i) - 1]) {
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$found = true;
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}
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unset($parts[$position - 1]);
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$haystack = array_merge(array($haystack[$position]), $haystack);
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break;
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}
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}
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if (isset($matches[$needle[0]]) && $matches[$needle[0]] > 1) {
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$matches[$needle[0]] = $matches[$needle[0]] - 1;
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} elseif ($i === $needleCount) {
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$found = true;
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}
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}
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if (!$found && isset($haystack[$position])) {
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$parts[] = $haystack[$position];
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unset($haystack[$position]);
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}
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$position++;
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}
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if ($found && $part && !empty($parts)) {
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return Multibyte::ascii($parts);
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} elseif ($found && !empty($haystack)) {
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return Multibyte::ascii($haystack);
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}
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return false;
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}
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/**
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* Finds position of last occurrence of a string within another, case insensitive
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||
|
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*
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* @param string $haystack The string from which to get the position of the last occurrence of $needle.
|
||
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* @param string $needle The string to find in $haystack.
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||
|
|
* @param integer $offset The position in $haystack to start searching.
|
||
|
|
* @return integer|boolean The numeric position of the last occurrence of $needle in the $haystack string,
|
||
|
|
* or false if $needle is not found.
|
||
|
|
*/
|
||
|
|
public static function strripos($haystack, $needle, $offset = 0) {
|
||
|
|
if (Multibyte::checkMultibyte($haystack)) {
|
||
|
|
$found = false;
|
||
|
|
$haystack = Multibyte::strtoupper($haystack);
|
||
|
|
$haystack = Multibyte::utf8($haystack);
|
||
|
|
$haystackCount = count($haystack);
|
||
|
|
|
||
|
|
$matches = array_count_values($haystack);
|
||
|
|
|
||
|
|
$needle = Multibyte::strtoupper($needle);
|
||
|
|
$needle = Multibyte::utf8($needle);
|
||
|
|
$needleCount = count($needle);
|
||
|
|
|
||
|
|
$position = $offset;
|
||
|
|
|
||
|
|
while (($found === false) && ($position < $haystackCount)) {
|
||
|
|
if (isset($needle[0]) && $needle[0] === $haystack[$position]) {
|
||
|
|
for ($i = 1; $i < $needleCount; $i++) {
|
||
|
|
if ($needle[$i] !== $haystack[$position + $i]) {
|
||
|
|
if ($needle[$i] === $haystack[($position + $i) - 1]) {
|
||
|
|
$position--;
|
||
|
|
$found = true;
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if (!$offset && isset($matches[$needle[0]]) && $matches[$needle[0]] > 1) {
|
||
|
|
$matches[$needle[0]] = $matches[$needle[0]] - 1;
|
||
|
|
} elseif ($i === $needleCount) {
|
||
|
|
$found = true;
|
||
|
|
$position--;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
$position++;
|
||
|
|
}
|
||
|
|
return ($found) ? $position : false;
|
||
|
|
}
|
||
|
|
return strripos($haystack, $needle, $offset);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Find position of last occurrence of a string in a string.
|
||
|
|
*
|
||
|
|
* @param string $haystack The string being checked, for the last occurrence of $needle.
|
||
|
|
* @param string $needle The string to find in $haystack.
|
||
|
|
* @param integer $offset May be specified to begin searching an arbitrary number of characters into the string.
|
||
|
|
* Negative values will stop searching at an arbitrary point prior to the end of the string.
|
||
|
|
* @return integer|boolean The numeric position of the last occurrence of $needle in the $haystack string.
|
||
|
|
* If $needle is not found, it returns false.
|
||
|
|
*/
|
||
|
|
public static function strrpos($haystack, $needle, $offset = 0) {
|
||
|
|
if (Multibyte::checkMultibyte($haystack)) {
|
||
|
|
$found = false;
|
||
|
|
|
||
|
|
$haystack = Multibyte::utf8($haystack);
|
||
|
|
$haystackCount = count($haystack);
|
||
|
|
|
||
|
|
$matches = array_count_values($haystack);
|
||
|
|
|
||
|
|
$needle = Multibyte::utf8($needle);
|
||
|
|
$needleCount = count($needle);
|
||
|
|
|
||
|
|
$position = $offset;
|
||
|
|
|
||
|
|
while (($found === false) && ($position < $haystackCount)) {
|
||
|
|
if (isset($needle[0]) && $needle[0] === $haystack[$position]) {
|
||
|
|
for ($i = 1; $i < $needleCount; $i++) {
|
||
|
|
if ($needle[$i] !== $haystack[$position + $i]) {
|
||
|
|
if ($needle[$i] === $haystack[($position + $i) - 1]) {
|
||
|
|
$position--;
|
||
|
|
$found = true;
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if (!$offset && isset($matches[$needle[0]]) && $matches[$needle[0]] > 1) {
|
||
|
|
$matches[$needle[0]] = $matches[$needle[0]] - 1;
|
||
|
|
} elseif ($i === $needleCount) {
|
||
|
|
$found = true;
|
||
|
|
$position--;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
$position++;
|
||
|
|
}
|
||
|
|
return ($found) ? $position : false;
|
||
|
|
}
|
||
|
|
return strrpos($haystack, $needle, $offset);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Finds first occurrence of a string within another
|
||
|
|
*
|
||
|
|
* @param string $haystack The string from which to get the first occurrence of $needle.
|
||
|
|
* @param string $needle The string to find in $haystack
|
||
|
|
* @param boolean $part Determines which portion of $haystack this function returns.
|
||
|
|
* If set to true, it returns all of $haystack from the beginning to the first occurrence of $needle.
|
||
|
|
* If set to false, it returns all of $haystack from the first occurrence of $needle to the end,
|
||
|
|
* Default value is FALSE.
|
||
|
|
* @return string|boolean The portion of $haystack, or true if $needle is not found.
|
||
|
|
*/
|
||
|
|
public static function strstr($haystack, $needle, $part = false) {
|
||
|
|
$php = (PHP_VERSION < 5.3);
|
||
|
|
|
||
|
|
if (($php && $part) || Multibyte::checkMultibyte($haystack)) {
|
||
|
|
$check = Multibyte::utf8($haystack);
|
||
|
|
$found = false;
|
||
|
|
|
||
|
|
$haystack = Multibyte::utf8($haystack);
|
||
|
|
$haystackCount = count($haystack);
|
||
|
|
|
||
|
|
$needle = Multibyte::utf8($needle);
|
||
|
|
$needleCount = count($needle);
|
||
|
|
|
||
|
|
$parts = array();
|
||
|
|
$position = 0;
|
||
|
|
|
||
|
|
while (($found === false) && ($position < $haystackCount)) {
|
||
|
|
if (isset($needle[0]) && $needle[0] === $check[$position]) {
|
||
|
|
for ($i = 1; $i < $needleCount; $i++) {
|
||
|
|
if ($needle[$i] !== $check[$position + $i]) {
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if ($i === $needleCount) {
|
||
|
|
$found = true;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if (!$found) {
|
||
|
|
$parts[] = $haystack[$position];
|
||
|
|
unset($haystack[$position]);
|
||
|
|
}
|
||
|
|
$position++;
|
||
|
|
}
|
||
|
|
|
||
|
|
if ($found && $part && !empty($parts)) {
|
||
|
|
return Multibyte::ascii($parts);
|
||
|
|
} elseif ($found && !empty($haystack)) {
|
||
|
|
return Multibyte::ascii($haystack);
|
||
|
|
}
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (!$php) {
|
||
|
|
return strstr($haystack, $needle, $part);
|
||
|
|
}
|
||
|
|
return strstr($haystack, $needle);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Make a string lowercase
|
||
|
|
*
|
||
|
|
* @param string $string The string being lowercased.
|
||
|
|
* @return string with all alphabetic characters converted to lowercase.
|
||
|
|
*/
|
||
|
|
public static function strtolower($string) {
|
||
|
|
$utf8Map = Multibyte::utf8($string);
|
||
|
|
|
||
|
|
$length = count($utf8Map);
|
||
|
|
$lowerCase = array();
|
||
|
|
|
||
|
|
for ($i = 0; $i < $length; $i++) {
|
||
|
|
$char = $utf8Map[$i];
|
||
|
|
|
||
|
|
if ($char < 128) {
|
||
|
|
$str = strtolower(chr($char));
|
||
|
|
$strlen = strlen($str);
|
||
|
|
for ($ii = 0; $ii < $strlen; $ii++) {
|
||
|
|
$lower = ord(substr($str, $ii, 1));
|
||
|
|
}
|
||
|
|
$lowerCase[] = $lower;
|
||
|
|
$matched = true;
|
||
|
|
} else {
|
||
|
|
$matched = false;
|
||
|
|
$keys = self::_find($char, 'upper');
|
||
|
|
|
||
|
|
if (!empty($keys)) {
|
||
|
|
foreach ($keys as $key => $value) {
|
||
|
|
if ($keys[$key]['upper'] == $char && count($keys[$key]['lower'][0]) === 1) {
|
||
|
|
$lowerCase[] = $keys[$key]['lower'][0];
|
||
|
|
$matched = true;
|
||
|
|
break 1;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if ($matched === false) {
|
||
|
|
$lowerCase[] = $char;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return Multibyte::ascii($lowerCase);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Make a string uppercase
|
||
|
|
*
|
||
|
|
* @param string $string The string being uppercased.
|
||
|
|
* @return string with all alphabetic characters converted to uppercase.
|
||
|
|
*/
|
||
|
|
public static function strtoupper($string) {
|
||
|
|
$utf8Map = Multibyte::utf8($string);
|
||
|
|
|
||
|
|
$length = count($utf8Map);
|
||
|
|
$replaced = array();
|
||
|
|
$upperCase = array();
|
||
|
|
|
||
|
|
for ($i = 0; $i < $length; $i++) {
|
||
|
|
$char = $utf8Map[$i];
|
||
|
|
|
||
|
|
if ($char < 128) {
|
||
|
|
$str = strtoupper(chr($char));
|
||
|
|
$strlen = strlen($str);
|
||
|
|
for ($ii = 0; $ii < $strlen; $ii++) {
|
||
|
|
$upper = ord(substr($str, $ii, 1));
|
||
|
|
}
|
||
|
|
$upperCase[] = $upper;
|
||
|
|
$matched = true;
|
||
|
|
|
||
|
|
} else {
|
||
|
|
$matched = false;
|
||
|
|
$keys = self::_find($char);
|
||
|
|
$keyCount = count($keys);
|
||
|
|
|
||
|
|
if (!empty($keys)) {
|
||
|
|
foreach ($keys as $key => $value) {
|
||
|
|
$matched = false;
|
||
|
|
$replace = 0;
|
||
|
|
if ($length > 1 && count($keys[$key]['lower']) > 1) {
|
||
|
|
$j = 0;
|
||
|
|
|
||
|
|
for ($ii = 0, $count = count($keys[$key]['lower']); $ii < $count; $ii++) {
|
||
|
|
$nextChar = $utf8Map[$i + $ii];
|
||
|
|
|
||
|
|
if (isset($nextChar) && ($nextChar == $keys[$key]['lower'][$j + $ii])) {
|
||
|
|
$replace++;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if ($replace == $count) {
|
||
|
|
$upperCase[] = $keys[$key]['upper'];
|
||
|
|
$replaced = array_merge($replaced, array_values($keys[$key]['lower']));
|
||
|
|
$matched = true;
|
||
|
|
break 1;
|
||
|
|
}
|
||
|
|
} elseif ($length > 1 && $keyCount > 1) {
|
||
|
|
$j = 0;
|
||
|
|
for ($ii = 1; $ii < $keyCount; $ii++) {
|
||
|
|
$nextChar = $utf8Map[$i + $ii - 1];
|
||
|
|
|
||
|
|
if (in_array($nextChar, $keys[$ii]['lower'])) {
|
||
|
|
|
||
|
|
for ($jj = 0, $count = count($keys[$ii]['lower']); $jj < $count; $jj++) {
|
||
|
|
$nextChar = $utf8Map[$i + $jj];
|
||
|
|
|
||
|
|
if (isset($nextChar) && ($nextChar == $keys[$ii]['lower'][$j + $jj])) {
|
||
|
|
$replace++;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if ($replace == $count) {
|
||
|
|
$upperCase[] = $keys[$ii]['upper'];
|
||
|
|
$replaced = array_merge($replaced, array_values($keys[$ii]['lower']));
|
||
|
|
$matched = true;
|
||
|
|
break 2;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if ($keys[$key]['lower'][0] == $char) {
|
||
|
|
$upperCase[] = $keys[$key]['upper'];
|
||
|
|
$matched = true;
|
||
|
|
break 1;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if ($matched === false && !in_array($char, $replaced, true)) {
|
||
|
|
$upperCase[] = $char;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return Multibyte::ascii($upperCase);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Count the number of substring occurrences
|
||
|
|
*
|
||
|
|
* @param string $haystack The string being checked.
|
||
|
|
* @param string $needle The string being found.
|
||
|
|
* @return integer The number of times the $needle substring occurs in the $haystack string.
|
||
|
|
*/
|
||
|
|
public static function substrCount($haystack, $needle) {
|
||
|
|
$count = 0;
|
||
|
|
$haystack = Multibyte::utf8($haystack);
|
||
|
|
$haystackCount = count($haystack);
|
||
|
|
$matches = array_count_values($haystack);
|
||
|
|
$needle = Multibyte::utf8($needle);
|
||
|
|
$needleCount = count($needle);
|
||
|
|
|
||
|
|
if ($needleCount === 1 && isset($matches[$needle[0]])) {
|
||
|
|
return $matches[$needle[0]];
|
||
|
|
}
|
||
|
|
|
||
|
|
for ($i = 0; $i < $haystackCount; $i++) {
|
||
|
|
if (isset($needle[0]) && $needle[0] === $haystack[$i]) {
|
||
|
|
for ($ii = 1; $ii < $needleCount; $ii++) {
|
||
|
|
if ($needle[$ii] === $haystack[$i + 1]) {
|
||
|
|
if ((isset($needle[$ii + 1]) && $haystack[$i + 2]) && $needle[$ii + 1] !== $haystack[$i + 2]) {
|
||
|
|
$count--;
|
||
|
|
} else {
|
||
|
|
$count++;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return $count;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Get part of string
|
||
|
|
*
|
||
|
|
* @param string $string The string being checked.
|
||
|
|
* @param integer $start The first position used in $string.
|
||
|
|
* @param integer $length The maximum length of the returned string.
|
||
|
|
* @return string The portion of $string specified by the $string and $length parameters.
|
||
|
|
*/
|
||
|
|
public static function substr($string, $start, $length = null) {
|
||
|
|
if ($start === 0 && $length === null) {
|
||
|
|
return $string;
|
||
|
|
}
|
||
|
|
|
||
|
|
$string = Multibyte::utf8($string);
|
||
|
|
|
||
|
|
for ($i = 1; $i <= $start; $i++) {
|
||
|
|
unset($string[$i - 1]);
|
||
|
|
}
|
||
|
|
|
||
|
|
if ($length === null || count($string) < $length) {
|
||
|
|
return Multibyte::ascii($string);
|
||
|
|
}
|
||
|
|
$string = array_values($string);
|
||
|
|
|
||
|
|
$value = array();
|
||
|
|
for ($i = 0; $i < $length; $i++) {
|
||
|
|
$value[] = $string[$i];
|
||
|
|
}
|
||
|
|
return Multibyte::ascii($value);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Prepare a string for mail transport, using the provided encoding
|
||
|
|
*
|
||
|
|
* @param string $string value to encode
|
||
|
|
* @param string $charset charset to use for encoding. defaults to UTF-8
|
||
|
|
* @param string $newline
|
||
|
|
* @return string
|
||
|
|
*/
|
||
|
|
public static function mimeEncode($string, $charset = null, $newline = "\r\n") {
|
||
|
|
if (!Multibyte::checkMultibyte($string) && strlen($string) < 75) {
|
||
|
|
return $string;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (empty($charset)) {
|
||
|
|
$charset = Configure::read('App.encoding');
|
||
|
|
}
|
||
|
|
$charset = strtoupper($charset);
|
||
|
|
|
||
|
|
$start = '=?' . $charset . '?B?';
|
||
|
|
$end = '?=';
|
||
|
|
$spacer = $end . $newline . ' ' . $start;
|
||
|
|
|
||
|
|
$length = 75 - strlen($start) - strlen($end);
|
||
|
|
$length = $length - ($length % 4);
|
||
|
|
if ($charset === 'UTF-8') {
|
||
|
|
$parts = array();
|
||
|
|
$maxchars = floor(($length * 3) / 4);
|
||
|
|
$stringLength = strlen($string);
|
||
|
|
while ($stringLength > $maxchars) {
|
||
|
|
$i = (int)$maxchars;
|
||
|
|
$test = ord($string[$i]);
|
||
|
|
while ($test >= 128 && $test <= 191) {
|
||
|
|
$i--;
|
||
|
|
$test = ord($string[$i]);
|
||
|
|
}
|
||
|
|
$parts[] = base64_encode(substr($string, 0, $i));
|
||
|
|
$string = substr($string, $i);
|
||
|
|
$stringLength = strlen($string);
|
||
|
|
}
|
||
|
|
$parts[] = base64_encode($string);
|
||
|
|
$string = implode($spacer, $parts);
|
||
|
|
} else {
|
||
|
|
$string = chunk_split(base64_encode($string), $length, $spacer);
|
||
|
|
$string = preg_replace('/' . preg_quote($spacer) . '$/', '', $string);
|
||
|
|
}
|
||
|
|
return $start . $string . $end;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Return the Code points range for Unicode characters
|
||
|
|
*
|
||
|
|
* @param integer $decimal
|
||
|
|
* @return string
|
||
|
|
*/
|
||
|
|
protected static function _codepoint($decimal) {
|
||
|
|
if ($decimal > 128 && $decimal < 256) {
|
||
|
|
$return = '0080_00ff'; // Latin-1 Supplement
|
||
|
|
} elseif ($decimal < 384) {
|
||
|
|
$return = '0100_017f'; // Latin Extended-A
|
||
|
|
} elseif ($decimal < 592) {
|
||
|
|
$return = '0180_024F'; // Latin Extended-B
|
||
|
|
} elseif ($decimal < 688) {
|
||
|
|
$return = '0250_02af'; // IPA Extensions
|
||
|
|
} elseif ($decimal >= 880 && $decimal < 1024) {
|
||
|
|
$return = '0370_03ff'; // Greek and Coptic
|
||
|
|
} elseif ($decimal < 1280) {
|
||
|
|
$return = '0400_04ff'; // Cyrillic
|
||
|
|
} elseif ($decimal < 1328) {
|
||
|
|
$return = '0500_052f'; // Cyrillic Supplement
|
||
|
|
} elseif ($decimal < 1424) {
|
||
|
|
$return = '0530_058f'; // Armenian
|
||
|
|
} elseif ($decimal >= 7680 && $decimal < 7936) {
|
||
|
|
$return = '1e00_1eff'; // Latin Extended Additional
|
||
|
|
} elseif ($decimal < 8192) {
|
||
|
|
$return = '1f00_1fff'; // Greek Extended
|
||
|
|
} elseif ($decimal >= 8448 && $decimal < 8528) {
|
||
|
|
$return = '2100_214f'; // Letterlike Symbols
|
||
|
|
} elseif ($decimal < 8592) {
|
||
|
|
$return = '2150_218f'; // Number Forms
|
||
|
|
} elseif ($decimal >= 9312 && $decimal < 9472) {
|
||
|
|
$return = '2460_24ff'; // Enclosed Alphanumerics
|
||
|
|
} elseif ($decimal >= 11264 && $decimal < 11360) {
|
||
|
|
$return = '2c00_2c5f'; // Glagolitic
|
||
|
|
} elseif ($decimal < 11392) {
|
||
|
|
$return = '2c60_2c7f'; // Latin Extended-C
|
||
|
|
} elseif ($decimal < 11520) {
|
||
|
|
$return = '2c80_2cff'; // Coptic
|
||
|
|
} elseif ($decimal >= 65280 && $decimal < 65520) {
|
||
|
|
$return = 'ff00_ffef'; // Halfwidth and Fullwidth Forms
|
||
|
|
} else {
|
||
|
|
$return = false;
|
||
|
|
}
|
||
|
|
self::$_codeRange[$decimal] = $return;
|
||
|
|
return $return;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Find the related code folding values for $char
|
||
|
|
*
|
||
|
|
* @param integer $char decimal value of character
|
||
|
|
* @param string $type
|
||
|
|
* @return array
|
||
|
|
*/
|
||
|
|
protected static function _find($char, $type = 'lower') {
|
||
|
|
$found = array();
|
||
|
|
if (!isset(self::$_codeRange[$char])) {
|
||
|
|
$range = self::_codepoint($char);
|
||
|
|
if ($range === false) {
|
||
|
|
return null;
|
||
|
|
}
|
||
|
|
if (!Configure::configured('_cake_core_')) {
|
||
|
|
App::uses('PhpReader', 'Configure');
|
||
|
|
Configure::config('_cake_core_', new PhpReader(CAKE . 'Config' . DS));
|
||
|
|
}
|
||
|
|
Configure::load('unicode' . DS . 'casefolding' . DS . $range, '_cake_core_');
|
||
|
|
self::$_caseFold[$range] = Configure::read($range);
|
||
|
|
Configure::delete($range);
|
||
|
|
}
|
||
|
|
|
||
|
|
if (!self::$_codeRange[$char]) {
|
||
|
|
return null;
|
||
|
|
}
|
||
|
|
self::$_table = self::$_codeRange[$char];
|
||
|
|
$count = count(self::$_caseFold[self::$_table]);
|
||
|
|
|
||
|
|
for ($i = 0; $i < $count; $i++) {
|
||
|
|
if ($type === 'lower' && self::$_caseFold[self::$_table][$i][$type][0] === $char) {
|
||
|
|
$found[] = self::$_caseFold[self::$_table][$i];
|
||
|
|
} elseif ($type === 'upper' && self::$_caseFold[self::$_table][$i][$type] === $char) {
|
||
|
|
$found[] = self::$_caseFold[self::$_table][$i];
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return $found;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Check the $string for multibyte characters
|
||
|
|
* @param string $string value to test
|
||
|
|
* @return boolean
|
||
|
|
*/
|
||
|
|
public static function checkMultibyte($string) {
|
||
|
|
$length = strlen($string);
|
||
|
|
|
||
|
|
for ($i = 0; $i < $length; $i++) {
|
||
|
|
$value = ord(($string[$i]));
|
||
|
|
if ($value > 128) {
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
}
|