--- /dev/null
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Polyfill\Mbstring;
+
+/**
+ * Partial mbstring implementation in PHP, iconv based, UTF-8 centric.
+ *
+ * Implemented:
+ * - mb_chr - Returns a specific character from its Unicode code point
+ * - mb_convert_encoding - Convert character encoding
+ * - mb_convert_variables - Convert character code in variable(s)
+ * - mb_decode_mimeheader - Decode string in MIME header field
+ * - mb_encode_mimeheader - Encode string for MIME header XXX NATIVE IMPLEMENTATION IS REALLY BUGGED
+ * - mb_convert_case - Perform case folding on a string
+ * - mb_get_info - Get internal settings of mbstring
+ * - mb_http_input - Detect HTTP input character encoding
+ * - mb_http_output - Set/Get HTTP output character encoding
+ * - mb_internal_encoding - Set/Get internal character encoding
+ * - mb_list_encodings - Returns an array of all supported encodings
+ * - mb_ord - Returns the Unicode code point of a character
+ * - mb_output_handler - Callback function converts character encoding in output buffer
+ * - mb_scrub - Replaces ill-formed byte sequences with substitute characters
+ * - mb_strlen - Get string length
+ * - mb_strpos - Find position of first occurrence of string in a string
+ * - mb_strrpos - Find position of last occurrence of a string in a string
+ * - mb_strtolower - Make a string lowercase
+ * - mb_strtoupper - Make a string uppercase
+ * - mb_substitute_character - Set/Get substitution character
+ * - mb_substr - Get part of string
+ * - mb_stripos - Finds position of first occurrence of a string within another, case insensitive
+ * - mb_stristr - Finds first occurrence of a string within another, case insensitive
+ * - mb_strrchr - Finds the last occurrence of a character in a string within another
+ * - mb_strrichr - Finds the last occurrence of a character in a string within another, case insensitive
+ * - mb_strripos - Finds position of last occurrence of a string within another, case insensitive
+ * - mb_strstr - Finds first occurrence of a string within anothers
+ * - mb_strwidth - Return width of string
+ * - mb_substr_count - Count the number of substring occurrences
+ *
+ * Not implemented:
+ * - mb_convert_kana - Convert "kana" one from another ("zen-kaku", "han-kaku" and more)
+ * - mb_decode_numericentity - Decode HTML numeric string reference to character
+ * - mb_encode_numericentity - Encode character to HTML numeric string reference
+ * - mb_ereg_* - Regular expression with multibyte support
+ * - mb_parse_str - Parse GET/POST/COOKIE data and set global variable
+ * - mb_preferred_mime_name - Get MIME charset string
+ * - mb_regex_encoding - Returns current encoding for multibyte regex as string
+ * - mb_regex_set_options - Set/Get the default options for mbregex functions
+ * - mb_send_mail - Send encoded mail
+ * - mb_split - Split multibyte string using regular expression
+ * - mb_strcut - Get part of string
+ * - mb_strimwidth - Get truncated string with specified width
+ *
+ * @author Nicolas Grekas <p@tchwork.com>
+ *
+ * @internal
+ */
+final class Mbstring
+{
+ const MB_CASE_FOLD = PHP_INT_MAX;
+
+ private static $encodingList = array('ASCII', 'UTF-8');
+ private static $language = 'neutral';
+ private static $internalEncoding = 'UTF-8';
+ private static $caseFold = array(
+ array('µ','ſ',"\xCD\x85",'ς',"\xCF\x90","\xCF\x91","\xCF\x95","\xCF\x96","\xCF\xB0","\xCF\xB1","\xCF\xB5","\xE1\xBA\x9B","\xE1\xBE\xBE"),
+ array('μ','s','ι', 'σ','β', 'θ', 'φ', 'π', 'κ', 'ρ', 'ε', "\xE1\xB9\xA1",'ι'),
+ );
+
+ public static function mb_convert_encoding($s, $toEncoding, $fromEncoding = null)
+ {
+ if (is_array($fromEncoding) || false !== strpos($fromEncoding, ',')) {
+ $fromEncoding = self::mb_detect_encoding($s, $fromEncoding);
+ } else {
+ $fromEncoding = self::getEncoding($fromEncoding);
+ }
+
+ $toEncoding = self::getEncoding($toEncoding);
+
+ if ('BASE64' === $fromEncoding) {
+ $s = base64_decode($s);
+ $fromEncoding = $toEncoding;
+ }
+
+ if ('BASE64' === $toEncoding) {
+ return base64_encode($s);
+ }
+
+ if ('HTML-ENTITIES' === $toEncoding || 'HTML' === $toEncoding) {
+ if ('HTML-ENTITIES' === $fromEncoding || 'HTML' === $fromEncoding) {
+ $fromEncoding = 'Windows-1252';
+ }
+ if ('UTF-8' !== $fromEncoding) {
+ $s = iconv($fromEncoding, 'UTF-8//IGNORE', $s);
+ }
+
+ return preg_replace_callback('/[\x80-\xFF]+/', array(__CLASS__, 'html_encoding_callback'), $s);
+ }
+
+ if ('HTML-ENTITIES' === $fromEncoding) {
+ $s = html_entity_decode($s, ENT_COMPAT, 'UTF-8');
+ $fromEncoding = 'UTF-8';
+ }
+
+ return iconv($fromEncoding, $toEncoding.'//IGNORE', $s);
+ }
+
+ public static function mb_convert_variables($toEncoding, $fromEncoding, &$a = null, &$b = null, &$c = null, &$d = null, &$e = null, &$f = null)
+ {
+ $vars = array(&$a, &$b, &$c, &$d, &$e, &$f);
+
+ $ok = true;
+ array_walk_recursive($vars, function (&$v) use (&$ok, $toEncoding, $fromEncoding) {
+ if (false === $v = Mbstring::mb_convert_encoding($v, $toEncoding, $fromEncoding)) {
+ $ok = false;
+ }
+ });
+
+ return $ok ? $fromEncoding : false;
+ }
+
+ public static function mb_decode_mimeheader($s)
+ {
+ return iconv_mime_decode($s, 2, self::$internalEncoding);
+ }
+
+ public static function mb_encode_mimeheader($s, $charset = null, $transferEncoding = null, $linefeed = null, $indent = null)
+ {
+ trigger_error('mb_encode_mimeheader() is bugged. Please use iconv_mime_encode() instead', E_USER_WARNING);
+ }
+
+ public static function mb_convert_case($s, $mode, $encoding = null)
+ {
+ if ('' === $s .= '') {
+ return '';
+ }
+
+ $encoding = self::getEncoding($encoding);
+
+ if ('UTF-8' === $encoding) {
+ $encoding = null;
+ } else {
+ $s = iconv($encoding, 'UTF-8//IGNORE', $s);
+ }
+
+ if (MB_CASE_TITLE == $mode) {
+ $s = preg_replace_callback('/\b\p{Ll}/u', array(__CLASS__, 'title_case_upper'), $s);
+ $s = preg_replace_callback('/\B[\p{Lu}\p{Lt}]+/u', array(__CLASS__, 'title_case_lower'), $s);
+ } else {
+ if (MB_CASE_UPPER == $mode) {
+ static $upper = null;
+ if (null === $upper) {
+ $upper = self::getData('upperCase');
+ }
+ $map = $upper;
+ } else {
+ if (self::MB_CASE_FOLD === $mode) {
+ $s = str_replace(self::$caseFold[0], self::$caseFold[1], $s);
+ }
+
+ static $lower = null;
+ if (null === $lower) {
+ $lower = self::getData('lowerCase');
+ }
+ $map = $lower;
+ }
+
+ static $ulenMask = array("\xC0" => 2, "\xD0" => 2, "\xE0" => 3, "\xF0" => 4);
+
+ $i = 0;
+ $len = strlen($s);
+
+ while ($i < $len) {
+ $ulen = $s[$i] < "\x80" ? 1 : $ulenMask[$s[$i] & "\xF0"];
+ $uchr = substr($s, $i, $ulen);
+ $i += $ulen;
+
+ if (isset($map[$uchr])) {
+ $uchr = $map[$uchr];
+ $nlen = strlen($uchr);
+
+ if ($nlen == $ulen) {
+ $nlen = $i;
+ do {
+ $s[--$nlen] = $uchr[--$ulen];
+ } while ($ulen);
+ } else {
+ $s = substr_replace($s, $uchr, $i - $ulen, $ulen);
+ $len += $nlen - $ulen;
+ $i += $nlen - $ulen;
+ }
+ }
+ }
+ }
+
+ if (null === $encoding) {
+ return $s;
+ }
+
+ return iconv('UTF-8', $encoding.'//IGNORE', $s);
+ }
+
+ public static function mb_internal_encoding($encoding = null)
+ {
+ if (null === $encoding) {
+ return self::$internalEncoding;
+ }
+
+ $encoding = self::getEncoding($encoding);
+
+ if ('UTF-8' === $encoding || false !== @iconv($encoding, $encoding, ' ')) {
+ self::$internalEncoding = $encoding;
+
+ return true;
+ }
+
+ return false;
+ }
+
+ public static function mb_language($lang = null)
+ {
+ if (null === $lang) {
+ return self::$language;
+ }
+
+ switch ($lang = strtolower($lang)) {
+ case 'uni':
+ case 'neutral':
+ self::$language = $lang;
+
+ return true;
+ }
+
+ return false;
+ }
+
+ public static function mb_list_encodings()
+ {
+ return array('UTF-8');
+ }
+
+ public static function mb_encoding_aliases($encoding)
+ {
+ switch (strtoupper($encoding)) {
+ case 'UTF8':
+ case 'UTF-8':
+ return array('utf8');
+ }
+
+ return false;
+ }
+
+ public static function mb_check_encoding($var = null, $encoding = null)
+ {
+ if (null === $encoding) {
+ if (null === $var) {
+ return false;
+ }
+ $encoding = self::$internalEncoding;
+ }
+
+ return self::mb_detect_encoding($var, array($encoding)) || false !== @iconv($encoding, $encoding, $var);
+ }
+
+ public static function mb_detect_encoding($str, $encodingList = null, $strict = false)
+ {
+ if (null === $encodingList) {
+ $encodingList = self::$encodingList;
+ } else {
+ if (!is_array($encodingList)) {
+ $encodingList = array_map('trim', explode(',', $encodingList));
+ }
+ $encodingList = array_map('strtoupper', $encodingList);
+ }
+
+ foreach ($encodingList as $enc) {
+ switch ($enc) {
+ case 'ASCII':
+ if (!preg_match('/[\x80-\xFF]/', $str)) {
+ return $enc;
+ }
+ break;
+
+ case 'UTF8':
+ case 'UTF-8':
+ if (preg_match('//u', $str)) {
+ return 'UTF-8';
+ }
+ break;
+
+ default:
+ if (0 === strncmp($enc, 'ISO-8859-', 9)) {
+ return $enc;
+ }
+ }
+ }
+
+ return false;
+ }
+
+ public static function mb_detect_order($encodingList = null)
+ {
+ if (null === $encodingList) {
+ return self::$encodingList;
+ }
+
+ if (!is_array($encodingList)) {
+ $encodingList = array_map('trim', explode(',', $encodingList));
+ }
+ $encodingList = array_map('strtoupper', $encodingList);
+
+ foreach ($encodingList as $enc) {
+ switch ($enc) {
+ default:
+ if (strncmp($enc, 'ISO-8859-', 9)) {
+ return false;
+ }
+ case 'ASCII':
+ case 'UTF8':
+ case 'UTF-8':
+ }
+ }
+
+ self::$encodingList = $encodingList;
+
+ return true;
+ }
+
+ public static function mb_strlen($s, $encoding = null)
+ {
+ switch ($encoding = self::getEncoding($encoding)) {
+ case 'ASCII':
+ case 'CP850':
+ return strlen($s);
+ }
+
+ return @iconv_strlen($s, $encoding);
+ }
+
+ public static function mb_strpos($haystack, $needle, $offset = 0, $encoding = null)
+ {
+ $encoding = self::getEncoding($encoding);
+
+ if ('' === $needle .= '') {
+ trigger_error(__METHOD__.': Empty delimiter', E_USER_WARNING);
+
+ return false;
+ }
+
+ return iconv_strpos($haystack, $needle, $offset, $encoding);
+ }
+
+ public static function mb_strrpos($haystack, $needle, $offset = 0, $encoding = null)
+ {
+ $encoding = self::getEncoding($encoding);
+
+ if ($offset != (int) $offset) {
+ $offset = 0;
+ } elseif ($offset = (int) $offset) {
+ if ($offset < 0) {
+ $haystack = self::mb_substr($haystack, 0, $offset, $encoding);
+ $offset = 0;
+ } else {
+ $haystack = self::mb_substr($haystack, $offset, 2147483647, $encoding);
+ }
+ }
+
+ $pos = iconv_strrpos($haystack, $needle, $encoding);
+
+ return false !== $pos ? $offset + $pos : false;
+ }
+
+ public static function mb_strtolower($s, $encoding = null)
+ {
+ return self::mb_convert_case($s, MB_CASE_LOWER, $encoding);
+ }
+
+ public static function mb_strtoupper($s, $encoding = null)
+ {
+ return self::mb_convert_case($s, MB_CASE_UPPER, $encoding);
+ }
+
+ public static function mb_substitute_character($c = null)
+ {
+ if (0 === strcasecmp($c, 'none')) {
+ return true;
+ }
+
+ return null !== $c ? false : 'none';
+ }
+
+ public static function mb_substr($s, $start, $length = null, $encoding = null)
+ {
+ $encoding = self::getEncoding($encoding);
+
+ if ($start < 0) {
+ $start = iconv_strlen($s, $encoding) + $start;
+ if ($start < 0) {
+ $start = 0;
+ }
+ }
+
+ if (null === $length) {
+ $length = 2147483647;
+ } elseif ($length < 0) {
+ $length = iconv_strlen($s, $encoding) + $length - $start;
+ if ($length < 0) {
+ return '';
+ }
+ }
+
+ return iconv_substr($s, $start, $length, $encoding).'';
+ }
+
+ public static function mb_stripos($haystack, $needle, $offset = 0, $encoding = null)
+ {
+ $haystack = self::mb_convert_case($haystack, self::MB_CASE_FOLD, $encoding);
+ $needle = self::mb_convert_case($needle, self::MB_CASE_FOLD, $encoding);
+
+ return self::mb_strpos($haystack, $needle, $offset, $encoding);
+ }
+
+ public static function mb_stristr($haystack, $needle, $part = false, $encoding = null)
+ {
+ $pos = self::mb_stripos($haystack, $needle, 0, $encoding);
+
+ return self::getSubpart($pos, $part, $haystack, $encoding);
+ }
+
+ public static function mb_strrchr($haystack, $needle, $part = false, $encoding = null)
+ {
+ $encoding = self::getEncoding($encoding);
+ $needle = self::mb_substr($needle, 0, 1, $encoding);
+ $pos = iconv_strrpos($haystack, $needle, $encoding);
+
+ return self::getSubpart($pos, $part, $haystack, $encoding);
+ }
+
+ public static function mb_strrichr($haystack, $needle, $part = false, $encoding = null)
+ {
+ $needle = self::mb_substr($needle, 0, 1, $encoding);
+ $pos = self::mb_strripos($haystack, $needle, $encoding);
+
+ return self::getSubpart($pos, $part, $haystack, $encoding);
+ }
+
+ public static function mb_strripos($haystack, $needle, $offset = 0, $encoding = null)
+ {
+ $haystack = self::mb_convert_case($haystack, self::MB_CASE_FOLD, $encoding);
+ $needle = self::mb_convert_case($needle, self::MB_CASE_FOLD, $encoding);
+
+ return self::mb_strrpos($haystack, $needle, $offset, $encoding);
+ }
+
+ public static function mb_strstr($haystack, $needle, $part = false, $encoding = null)
+ {
+ $pos = strpos($haystack, $needle);
+ if (false === $pos) {
+ return false;
+ }
+ if ($part) {
+ return substr($haystack, 0, $pos);
+ }
+
+ return substr($haystack, $pos);
+ }
+
+ public static function mb_get_info($type = 'all')
+ {
+ $info = array(
+ 'internal_encoding' => self::$internalEncoding,
+ 'http_output' => 'pass',
+ 'http_output_conv_mimetypes' => '^(text/|application/xhtml\+xml)',
+ 'func_overload' => 0,
+ 'func_overload_list' => 'no overload',
+ 'mail_charset' => 'UTF-8',
+ 'mail_header_encoding' => 'BASE64',
+ 'mail_body_encoding' => 'BASE64',
+ 'illegal_chars' => 0,
+ 'encoding_translation' => 'Off',
+ 'language' => self::$language,
+ 'detect_order' => self::$encodingList,
+ 'substitute_character' => 'none',
+ 'strict_detection' => 'Off',
+ );
+
+ if ('all' === $type) {
+ return $info;
+ }
+ if (isset($info[$type])) {
+ return $info[$type];
+ }
+
+ return false;
+ }
+
+ public static function mb_http_input($type = '')
+ {
+ return false;
+ }
+
+ public static function mb_http_output($encoding = null)
+ {
+ return null !== $encoding ? 'pass' === $encoding : 'pass';
+ }
+
+ public static function mb_strwidth($s, $encoding = null)
+ {
+ $encoding = self::getEncoding($encoding);
+
+ if ('UTF-8' !== $encoding) {
+ $s = iconv($encoding, 'UTF-8//IGNORE', $s);
+ }
+
+ $s = preg_replace('/[\x{1100}-\x{115F}\x{2329}\x{232A}\x{2E80}-\x{303E}\x{3040}-\x{A4CF}\x{AC00}-\x{D7A3}\x{F900}-\x{FAFF}\x{FE10}-\x{FE19}\x{FE30}-\x{FE6F}\x{FF00}-\x{FF60}\x{FFE0}-\x{FFE6}\x{20000}-\x{2FFFD}\x{30000}-\x{3FFFD}]/u', '', $s, -1, $wide);
+
+ return ($wide << 1) + iconv_strlen($s, 'UTF-8');
+ }
+
+ public static function mb_substr_count($haystack, $needle, $encoding = null)
+ {
+ return substr_count($haystack, $needle);
+ }
+
+ public static function mb_output_handler($contents, $status)
+ {
+ return $contents;
+ }
+
+ public static function mb_chr($code, $encoding = null)
+ {
+ if (0x80 > $code %= 0x200000) {
+ $s = chr($code);
+ } elseif (0x800 > $code) {
+ $s = chr(0xC0 | $code >> 6).chr(0x80 | $code & 0x3F);
+ } elseif (0x10000 > $code) {
+ $s = chr(0xE0 | $code >> 12).chr(0x80 | $code >> 6 & 0x3F).chr(0x80 | $code & 0x3F);
+ } else {
+ $s = chr(0xF0 | $code >> 18).chr(0x80 | $code >> 12 & 0x3F).chr(0x80 | $code >> 6 & 0x3F).chr(0x80 | $code & 0x3F);
+ }
+
+ if ('UTF-8' !== $encoding = self::getEncoding($encoding)) {
+ $s = mb_convert_encoding($s, $encoding, 'UTF-8');
+ }
+
+ return $s;
+ }
+
+ public static function mb_ord($s, $encoding = null)
+ {
+ if ('UTF-8' !== $encoding = self::getEncoding($encoding)) {
+ $s = mb_convert_encoding($s, 'UTF-8', $encoding);
+ }
+
+ $code = ($s = unpack('C*', substr($s, 0, 4))) ? $s[1] : 0;
+ if (0xF0 <= $code) {
+ return (($code - 0xF0) << 18) + (($s[2] - 0x80) << 12) + (($s[3] - 0x80) << 6) + $s[4] - 0x80;
+ }
+ if (0xE0 <= $code) {
+ return (($code - 0xE0) << 12) + (($s[2] - 0x80) << 6) + $s[3] - 0x80;
+ }
+ if (0xC0 <= $code) {
+ return (($code - 0xC0) << 6) + $s[2] - 0x80;
+ }
+
+ return $code;
+ }
+
+ private static function getSubpart($pos, $part, $haystack, $encoding)
+ {
+ if (false === $pos) {
+ return false;
+ }
+ if ($part) {
+ return self::mb_substr($haystack, 0, $pos, $encoding);
+ }
+
+ return self::mb_substr($haystack, $pos, null, $encoding);
+ }
+
+ private static function html_encoding_callback($m)
+ {
+ $i = 1;
+ $entities = '';
+ $m = unpack('C*', htmlentities($m[0], ENT_COMPAT, 'UTF-8'));
+
+ while (isset($m[$i])) {
+ if (0x80 > $m[$i]) {
+ $entities .= chr($m[$i++]);
+ continue;
+ }
+ if (0xF0 <= $m[$i]) {
+ $c = (($m[$i++] - 0xF0) << 18) + (($m[$i++] - 0x80) << 12) + (($m[$i++] - 0x80) << 6) + $m[$i++] - 0x80;
+ } elseif (0xE0 <= $m[$i]) {
+ $c = (($m[$i++] - 0xE0) << 12) + (($m[$i++] - 0x80) << 6) + $m[$i++] - 0x80;
+ } else {
+ $c = (($m[$i++] - 0xC0) << 6) + $m[$i++] - 0x80;
+ }
+
+ $entities .= '&#'.$c.';';
+ }
+
+ return $entities;
+ }
+
+ private static function title_case_lower($s)
+ {
+ return self::mb_convert_case($s[0], MB_CASE_LOWER, 'UTF-8');
+ }
+
+ private static function title_case_upper($s)
+ {
+ return self::mb_convert_case($s[0], MB_CASE_UPPER, 'UTF-8');
+ }
+
+ private static function getData($file)
+ {
+ if (file_exists($file = __DIR__.'/Resources/unidata/'.$file.'.php')) {
+ return require $file;
+ }
+
+ return false;
+ }
+
+ private static function getEncoding($encoding)
+ {
+ if (null === $encoding) {
+ return self::$internalEncoding;
+ }
+
+ $encoding = strtoupper($encoding);
+
+ if ('8BIT' === $encoding || 'BINARY' === $encoding) {
+ return 'CP850';
+ }
+ if ('UTF8' === $encoding) {
+ return 'UTF-8';
+ }
+
+ return $encoding;
+ }
+}
projects / yaffs-website / blobdiff