<?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_decode_numericentity - Decode HTML numeric string reference to character
   * - mb_encode_numericentity - Encode character to HTML numeric string reference
   * - mb_convert_case         - Perform case folding on a string
   * - mb_detect_encoding      - Detect character encoding
   * - 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_str_split            - Convert a string to an array
   * - 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 another
   * - 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_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
  {
      public const MB_CASE_FOLD = \PHP_INT_MAX;
  
      private const SIMPLE_CASE_FOLD = [
          ['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"],
          ['μ', 's', 'ι',        'σ', 'β',        'θ',        'φ',        'π',        'κ',        'ρ',        'ε',        "\xE1\xB9\xA1", 'ι'],
      ];
  
      private static $encodingList = ['ASCII', 'UTF-8'];
      private static $language = 'neutral';
      private static $internalEncoding = 'UTF-8';
  
      public static function mb_convert_encoding($s, $toEncoding, $fromEncoding = null)
      {
          if (\is_array($fromEncoding) || (null !== $fromEncoding && false !== strpos($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]+/', [__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, $fromEncoding, &...$vars)
      {
          $ok = true;
          array_walk_recursive($vars, function (&$v) use (&$ok, $toEncoding, $fromEncoding) {
              if (false === $v = self::mb_convert_encoding($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_decode_numericentity($s, $convmap, $encoding = null)
      {
          if (null !== $s && !\is_scalar($s) && !(\is_object($s) && method_exists($s, '__toString'))) {
              trigger_error('mb_decode_numericentity() expects parameter 1 to be string, '.\gettype($s).' given', \E_USER_WARNING);
  
              return null;
          }
  
          if (!\is_array($convmap) || (80000 > \PHP_VERSION_ID && !$convmap)) {
              return false;
          }
  
          if (null !== $encoding && !\is_scalar($encoding)) {
              trigger_error('mb_decode_numericentity() expects parameter 3 to be string, '.\gettype($s).' given', \E_USER_WARNING);
  
              return '';  // Instead of null (cf. mb_encode_numericentity).
          }
  
          $s = (string) $s;
          if ('' === $s) {
              return '';
          }
  
          $encoding = self::getEncoding($encoding);
  
          if ('UTF-8' === $encoding) {
              $encoding = null;
              if (!preg_match('//u', $s)) {
                  $s = @iconv('UTF-8', 'UTF-8//IGNORE', $s);
              }
          } else {
              $s = iconv($encoding, 'UTF-8//IGNORE', $s);
          }
  
          $cnt = floor(\count($convmap) / 4) * 4;
  
          for ($i = 0; $i < $cnt; $i += 4) {
              // collector_decode_htmlnumericentity ignores $convmap[$i + 3]
              $convmap[$i] += $convmap[$i + 2];
              $convmap[$i + 1] += $convmap[$i + 2];
          }
  
          $s = preg_replace_callback('/&#(?:0*([0-9]+)|x0*([0-9a-fA-F]+))(?!&);?/', function (array $m) use ($cnt, $convmap) {
              $c = isset($m[2]) ? (int) hexdec($m[2]) : $m[1];
              for ($i = 0; $i < $cnt; $i += 4) {
                  if ($c >= $convmap[$i] && $c <= $convmap[$i + 1]) {
                      return self::mb_chr($c - $convmap[$i + 2]);
                  }
              }
  
              return $m[0];
          }, $s);
  
          if (null === $encoding) {
              return $s;
          }
  
          return iconv('UTF-8', $encoding.'//IGNORE', $s);
      }
  
      public static function mb_encode_numericentity($s, $convmap, $encoding = null, $is_hex = false)
      {
          if (null !== $s && !\is_scalar($s) && !(\is_object($s) && method_exists($s, '__toString'))) {
              trigger_error('mb_encode_numericentity() expects parameter 1 to be string, '.\gettype($s).' given', \E_USER_WARNING);
  
              return null;
          }
  
          if (!\is_array($convmap) || (80000 > \PHP_VERSION_ID && !$convmap)) {
              return false;
          }
  
          if (null !== $encoding && !\is_scalar($encoding)) {
              trigger_error('mb_encode_numericentity() expects parameter 3 to be string, '.\gettype($s).' given', \E_USER_WARNING);
  
              return null;  // Instead of '' (cf. mb_decode_numericentity).
          }
  
          if (null !== $is_hex && !\is_scalar($is_hex)) {
              trigger_error('mb_encode_numericentity() expects parameter 4 to be boolean, '.\gettype($s).' given', \E_USER_WARNING);
  
              return null;
          }
  
          $s = (string) $s;
          if ('' === $s) {
              return '';
          }
  
          $encoding = self::getEncoding($encoding);
  
          if ('UTF-8' === $encoding) {
              $encoding = null;
              if (!preg_match('//u', $s)) {
                  $s = @iconv('UTF-8', 'UTF-8//IGNORE', $s);
              }
          } else {
              $s = iconv($encoding, 'UTF-8//IGNORE', $s);
          }
  
          static $ulenMask = ["\xC0" => 2, "\xD0" => 2, "\xE0" => 3, "\xF0" => 4];
  
          $cnt = floor(\count($convmap) / 4) * 4;
          $i = 0;
          $len = \strlen($s);
          $result = '';
  
          while ($i < $len) {
              $ulen = $s[$i] < "\x80" ? 1 : $ulenMask[$s[$i] & "\xF0"];
              $uchr = substr($s, $i, $ulen);
              $i += $ulen;
              $c = self::mb_ord($uchr);
  
              for ($j = 0; $j < $cnt; $j += 4) {
                  if ($c >= $convmap[$j] && $c <= $convmap[$j + 1]) {
                      $cOffset = ($c + $convmap[$j + 2]) & $convmap[$j + 3];
                      $result .= $is_hex ? sprintf('&#x%X;', $cOffset) : '&#'.$cOffset.';';
                      continue 2;
                  }
              }
              $result .= $uchr;
          }
  
          if (null === $encoding) {
              return $result;
          }
  
          return iconv('UTF-8', $encoding.'//IGNORE', $result);
      }
  
      public static function mb_convert_case($s, $mode, $encoding = null)
      {
          $s = (string) $s;
          if ('' === $s) {
              return '';
          }
  
          $encoding = self::getEncoding($encoding);
  
          if ('UTF-8' === $encoding) {
              $encoding = null;
              if (!preg_match('//u', $s)) {
                  $s = @iconv('UTF-8', 'UTF-8//IGNORE', $s);
              }
          } else {
              $s = iconv($encoding, 'UTF-8//IGNORE', $s);
          }
  
          if (\MB_CASE_TITLE == $mode) {
              static $titleRegexp = null;
              if (null === $titleRegexp) {
                  $titleRegexp = self::getData('titleCaseRegexp');
              }
              $s = preg_replace_callback($titleRegexp, [__CLASS__, 'title_case'], $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) {
                      static $caseFolding = null;
                      if (null === $caseFolding) {
                          $caseFolding = self::getData('caseFolding');
                      }
                      $s = strtr($s, $caseFolding);
                  }
  
                  static $lower = null;
                  if (null === $lower) {
                      $lower = self::getData('lowerCase');
                  }
                  $map = $lower;
              }
  
              static $ulenMask = ["\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;
          }
  
          $normalizedEncoding = self::getEncoding($encoding);
  
          if ('UTF-8' === $normalizedEncoding || false !== @iconv($normalizedEncoding, $normalizedEncoding, ' ')) {
              self::$internalEncoding = $normalizedEncoding;
  
              return true;
          }
  
          if (80000 > \PHP_VERSION_ID) {
              return false;
          }
  
          throw new \ValueError(sprintf('Argument #1 ($encoding) must be a valid encoding, "%s" given', $encoding));
      }
  
      public static function mb_language($lang = null)
      {
          if (null === $lang) {
              return self::$language;
          }
  
          switch ($normalizedLang = strtolower($lang)) {
              case 'uni':
              case 'neutral':
                  self::$language = $normalizedLang;
  
                  return true;
          }
  
          if (80000 > \PHP_VERSION_ID) {
              return false;
          }
  
          throw new \ValueError(sprintf('Argument #1 ($language) must be a valid language, "%s" given', $lang));
      }
  
      public static function mb_list_encodings()
      {
          return ['UTF-8'];
      }
  
      public static function mb_encoding_aliases($encoding)
      {
          switch (strtoupper($encoding)) {
              case 'UTF8':
              case 'UTF-8':
                  return ['utf8'];
          }
  
          return false;
      }
  
      public static function mb_check_encoding($var = null, $encoding = null)
      {
          if (PHP_VERSION_ID < 70200 && \is_array($var)) {
              trigger_error('mb_check_encoding() expects parameter 1 to be string, array given', \E_USER_WARNING);
  
              return null;
          }
  
          if (null === $encoding) {
              if (null === $var) {
                  return false;
              }
              $encoding = self::$internalEncoding;
          }
  
          if (!\is_array($var)) {
              return self::mb_detect_encoding($var, [$encoding]) || false !== @iconv($encoding, $encoding, $var);
          }
  
          foreach ($var as $key => $value) {
              if (!self::mb_check_encoding($key, $encoding)) {
                  return false;
              }
              if (!self::mb_check_encoding($value, $encoding)) {
                  return false;
              }
          }
  
          return true;
  
      }
  
      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;
                      }
                      // no break
                  case 'ASCII':
                  case 'UTF8':
                  case 'UTF-8':
              }
          }
  
          self::$encodingList = $encodingList;
  
          return true;
      }
  
      public static function mb_strlen($s, $encoding = null)
      {
          $encoding = self::getEncoding($encoding);
          if ('CP850' === $encoding || 'ASCII' === $encoding) {
              return \strlen($s);
          }
  
          return @iconv_strlen($s, $encoding);
      }
  
      public static function mb_strpos($haystack, $needle, $offset = 0, $encoding = null)
      {
          $encoding = self::getEncoding($encoding);
          if ('CP850' === $encoding || 'ASCII' === $encoding) {
              return strpos($haystack, $needle, $offset);
          }
  
          $needle = (string) $needle;
          if ('' === $needle) {
              if (80000 > \PHP_VERSION_ID) {
                  trigger_error(__METHOD__.': Empty delimiter', \E_USER_WARNING);
  
                  return false;
              }
  
              return 0;
          }
  
          return iconv_strpos($haystack, $needle, $offset, $encoding);
      }
  
      public static function mb_strrpos($haystack, $needle, $offset = 0, $encoding = null)
      {
          $encoding = self::getEncoding($encoding);
          if ('CP850' === $encoding || 'ASCII' === $encoding) {
              return strrpos($haystack, $needle, $offset);
          }
  
          if ($offset != (int) $offset) {
              $offset = 0;
          } elseif ($offset = (int) $offset) {
              if ($offset < 0) {
                  if (0 > $offset += self::mb_strlen($needle)) {
                      $haystack = self::mb_substr($haystack, 0, $offset, $encoding);
                  }
                  $offset = 0;
              } else {
                  $haystack = self::mb_substr($haystack, $offset, 2147483647, $encoding);
              }
          }
  
          $pos = '' !== $needle || 80000 > \PHP_VERSION_ID
              ? iconv_strrpos($haystack, $needle, $encoding)
              : self::mb_strlen($haystack, $encoding);
  
          return false !== $pos ? $offset + $pos : false;
      }
  
      public static function mb_str_split($string, $split_length = 1, $encoding = null)
      {
          if (null !== $string && !\is_scalar($string) && !(\is_object($string) && method_exists($string, '__toString'))) {
              trigger_error('mb_str_split() expects parameter 1 to be string, '.\gettype($string).' given', \E_USER_WARNING);
  
              return null;
          }
  
          if (1 > $split_length = (int) $split_length) {
              if (80000 > \PHP_VERSION_ID) {
                  trigger_error('The length of each segment must be greater than zero', \E_USER_WARNING);
  
                  return false;
              }
  
              throw new \ValueError('Argument #2 ($length) must be greater than 0');
          }
  
          if (null === $encoding) {
              $encoding = mb_internal_encoding();
          }
  
          if ('UTF-8' === $encoding = self::getEncoding($encoding)) {
              $rx = '/(';
              while (65535 < $split_length) {
                  $rx .= '.{65535}';
                  $split_length -= 65535;
              }
              $rx .= '.{'.$split_length.'})/us';
  
              return preg_split($rx, $string, -1, \PREG_SPLIT_DELIM_CAPTURE | \PREG_SPLIT_NO_EMPTY);
          }
  
          $result = [];
          $length = mb_strlen($string, $encoding);
  
          for ($i = 0; $i < $length; $i += $split_length) {
              $result[] = mb_substr($string, $i, $split_length, $encoding);
          }
  
          return $result;
      }
  
      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 (null === $c) {
              return 'none';
          }
          if (0 === strcasecmp($c, 'none')) {
              return true;
          }
          if (80000 > \PHP_VERSION_ID) {
              return false;
          }
          if (\is_int($c) || 'long' === $c || 'entity' === $c) {
              return false;
          }
  
          throw new \ValueError('Argument #1 ($substitute_character) must be "none", "long", "entity" or a valid codepoint');
      }
  
      public static function mb_substr($s, $start, $length = null, $encoding = null)
      {
          $encoding = self::getEncoding($encoding);
          if ('CP850' === $encoding || 'ASCII' === $encoding) {
              return (string) substr($s, $start, null === $length ? 2147483647 : $length);
          }
  
          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 (string) iconv_substr($s, $start, $length, $encoding);
      }
  
      public static function mb_stripos($haystack, $needle, $offset = 0, $encoding = null)
      {
          [$haystack, $needle] = str_replace(self::SIMPLE_CASE_FOLD[0], self::SIMPLE_CASE_FOLD[1], [
              self::mb_convert_case($haystack, \MB_CASE_LOWER, $encoding),
              self::mb_convert_case($needle, \MB_CASE_LOWER, $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);
          if ('CP850' === $encoding || 'ASCII' === $encoding) {
              $pos = strrpos($haystack, $needle);
          } else {
              $needle = self::mb_substr($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, \MB_CASE_LOWER, $encoding);
          $needle = self::mb_convert_case($needle, \MB_CASE_LOWER, $encoding);
  
          $haystack = str_replace(self::SIMPLE_CASE_FOLD[0], self::SIMPLE_CASE_FOLD[1], $haystack);
          $needle = str_replace(self::SIMPLE_CASE_FOLD[0], self::SIMPLE_CASE_FOLD[1], $needle);
  
          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')
      {
          $info = [
              'internal_encoding' => self::$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);
          }
  
          if (1 === \strlen($s)) {
              return \ord($s);
          }
  
          $code = ($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;
      }
  
      public static function mb_str_pad(string $string, int $length, string $pad_string = ' ', int $pad_type = \STR_PAD_RIGHT, string $encoding = null): string
      {
          if (!\in_array($pad_type, [\STR_PAD_RIGHT, \STR_PAD_LEFT, \STR_PAD_BOTH], true)) {
              throw new \ValueError('mb_str_pad(): Argument #4 ($pad_type) must be STR_PAD_LEFT, STR_PAD_RIGHT, or STR_PAD_BOTH');
          }
  
          if (null === $encoding) {
              $encoding = self::mb_internal_encoding();
          }
  
          try {
              $validEncoding = @self::mb_check_encoding('', $encoding);
          } catch (\ValueError $e) {
              throw new \ValueError(sprintf('mb_str_pad(): Argument #5 ($encoding) must be a valid encoding, "%s" given', $encoding));
          }
  
          // BC for PHP 7.3 and lower
          if (!$validEncoding) {
              throw new \ValueError(sprintf('mb_str_pad(): Argument #5 ($encoding) must be a valid encoding, "%s" given', $encoding));
          }
  
          if (self::mb_strlen($pad_string, $encoding) <= 0) {
              throw new \ValueError('mb_str_pad(): Argument #3 ($pad_string) must be a non-empty string');
          }
  
          $paddingRequired = $length - self::mb_strlen($string, $encoding);
  
          if ($paddingRequired < 1) {
              return $string;
          }
  
          switch ($pad_type) {
              case \STR_PAD_LEFT:
                  return self::mb_substr(str_repeat($pad_string, $paddingRequired), 0, $paddingRequired, $encoding).$string;
              case \STR_PAD_RIGHT:
                  return $string.self::mb_substr(str_repeat($pad_string, $paddingRequired), 0, $paddingRequired, $encoding);
              default:
                  $leftPaddingLength = floor($paddingRequired / 2);
                  $rightPaddingLength = $paddingRequired - $leftPaddingLength;
  
                  return self::mb_substr(str_repeat($pad_string, $leftPaddingLength), 0, $leftPaddingLength, $encoding).$string.self::mb_substr(str_repeat($pad_string, $rightPaddingLength), 0, $rightPaddingLength, $encoding);
          }
      }
  
      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(array $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(array $s)
      {
          return self::mb_convert_case($s[1], \MB_CASE_UPPER, 'UTF-8').self::mb_convert_case($s[2], \MB_CASE_LOWER, '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;
          }
  
          if ('UTF-8' === $encoding) {
              return 'UTF-8';
          }
  
          $encoding = strtoupper($encoding);
  
          if ('8BIT' === $encoding || 'BINARY' === $encoding) {
              return 'CP850';
          }
  
          if ('UTF8' === $encoding) {
              return 'UTF-8';
          }
  
          return $encoding;
      }
  }