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/vendor/symfony/polyfill-mbstring/ -> Mbstring.php (source)

   1  <?php
   2  
   3  /*
   4   * This file is part of the Symfony package.
   5   *
   6   * (c) Fabien Potencier <fabien@symfony.com>
   7   *
   8   * For the full copyright and license information, please view the LICENSE
   9   * file that was distributed with this source code.
  10   */
  11  
  12  namespace Symfony\Polyfill\Mbstring;
  13  
  14  /**
  15   * Partial mbstring implementation in PHP, iconv based, UTF-8 centric.
  16   *
  17   * Implemented:
  18   * - mb_chr                  - Returns a specific character from its Unicode code point
  19   * - mb_convert_encoding     - Convert character encoding
  20   * - mb_convert_variables    - Convert character code in variable(s)
  21   * - mb_decode_mimeheader    - Decode string in MIME header field
  22   * - mb_encode_mimeheader    - Encode string for MIME header XXX NATIVE IMPLEMENTATION IS REALLY BUGGED
  23   * - mb_decode_numericentity - Decode HTML numeric string reference to character
  24   * - mb_encode_numericentity - Encode character to HTML numeric string reference
  25   * - mb_convert_case         - Perform case folding on a string
  26   * - mb_detect_encoding      - Detect character encoding
  27   * - mb_get_info             - Get internal settings of mbstring
  28   * - mb_http_input           - Detect HTTP input character encoding
  29   * - mb_http_output          - Set/Get HTTP output character encoding
  30   * - mb_internal_encoding    - Set/Get internal character encoding
  31   * - mb_list_encodings       - Returns an array of all supported encodings
  32   * - mb_ord                  - Returns the Unicode code point of a character
  33   * - mb_output_handler       - Callback function converts character encoding in output buffer
  34   * - mb_scrub                - Replaces ill-formed byte sequences with substitute characters
  35   * - mb_strlen               - Get string length
  36   * - mb_strpos               - Find position of first occurrence of string in a string
  37   * - mb_strrpos              - Find position of last occurrence of a string in a string
  38   * - mb_strtolower           - Make a string lowercase
  39   * - mb_strtoupper           - Make a string uppercase
  40   * - mb_substitute_character - Set/Get substitution character
  41   * - mb_substr               - Get part of string
  42   * - mb_stripos              - Finds position of first occurrence of a string within another, case insensitive
  43   * - mb_stristr              - Finds first occurrence of a string within another, case insensitive
  44   * - mb_strrchr              - Finds the last occurrence of a character in a string within another
  45   * - mb_strrichr             - Finds the last occurrence of a character in a string within another, case insensitive
  46   * - mb_strripos             - Finds position of last occurrence of a string within another, case insensitive
  47   * - mb_strstr               - Finds first occurrence of a string within another
  48   * - mb_strwidth             - Return width of string
  49   * - mb_substr_count         - Count the number of substring occurrences
  50   *
  51   * Not implemented:
  52   * - mb_convert_kana         - Convert "kana" one from another ("zen-kaku", "han-kaku" and more)
  53   * - mb_ereg_*               - Regular expression with multibyte support
  54   * - mb_parse_str            - Parse GET/POST/COOKIE data and set global variable
  55   * - mb_preferred_mime_name  - Get MIME charset string
  56   * - mb_regex_encoding       - Returns current encoding for multibyte regex as string
  57   * - mb_regex_set_options    - Set/Get the default options for mbregex functions
  58   * - mb_send_mail            - Send encoded mail
  59   * - mb_split                - Split multibyte string using regular expression
  60   * - mb_strcut               - Get part of string
  61   * - mb_strimwidth           - Get truncated string with specified width
  62   *
  63   * @author Nicolas Grekas <p@tchwork.com>
  64   *
  65   * @internal
  66   */
  67  final class Mbstring
  68  {
  69      const MB_CASE_FOLD = PHP_INT_MAX;
  70  
  71      private static $encodingList = array('ASCII', 'UTF-8');
  72      private static $language = 'neutral';
  73      private static $internalEncoding = 'UTF-8';
  74      private static $caseFold = array(
  75          array('µ', 'ſ', "\xCD\x85", 'ς', "\xCF\x90", "\xCF\x91", "\xCF\x95", "\xCF\x96", "\xCF\xB0", "\xCF\xB1", "\xCF\xB5", "\xE1\xBA\x9B", "\xE1\xBE\xBE"),
  76          array('μ', 's', 'ι',        'σ', 'β',        'θ',        'φ',        'π',        'κ',        'ρ',        'ε',        "\xE1\xB9\xA1", 'ι'),
  77      );
  78  
  79      public static function mb_convert_encoding($s, $toEncoding, $fromEncoding = null)
  80      {
  81          if (\is_array($fromEncoding) || false !== strpos($fromEncoding, ',')) {
  82              $fromEncoding = self::mb_detect_encoding($s, $fromEncoding);
  83          } else {
  84              $fromEncoding = self::getEncoding($fromEncoding);
  85          }
  86  
  87          $toEncoding = self::getEncoding($toEncoding);
  88  
  89          if ('BASE64' === $fromEncoding) {
  90              $s = base64_decode($s);
  91              $fromEncoding = $toEncoding;
  92          }
  93  
  94          if ('BASE64' === $toEncoding) {
  95              return base64_encode($s);
  96          }
  97  
  98          if ('HTML-ENTITIES' === $toEncoding || 'HTML' === $toEncoding) {
  99              if ('HTML-ENTITIES' === $fromEncoding || 'HTML' === $fromEncoding) {
 100                  $fromEncoding = 'Windows-1252';
 101              }
 102              if ('UTF-8' !== $fromEncoding) {
 103                  $s = iconv($fromEncoding, 'UTF-8//IGNORE', $s);
 104              }
 105  
 106              return preg_replace_callback('/[\x80-\xFF]+/', array(__CLASS__, 'html_encoding_callback'), $s);
 107          }
 108  
 109          if ('HTML-ENTITIES' === $fromEncoding) {
 110              $s = html_entity_decode($s, ENT_COMPAT, 'UTF-8');
 111              $fromEncoding = 'UTF-8';
 112          }
 113  
 114          return iconv($fromEncoding, $toEncoding.'//IGNORE', $s);
 115      }
 116  
 117      public static function mb_convert_variables($toEncoding, $fromEncoding, &$a = null, &$b = null, &$c = null, &$d = null, &$e = null, &$f = null)
 118      {
 119          $vars = array(&$a, &$b, &$c, &$d, &$e, &$f);
 120  
 121          $ok = true;
 122          array_walk_recursive($vars, function (&$v) use (&$ok, $toEncoding, $fromEncoding) {
 123              if (false === $v = Mbstring::mb_convert_encoding($v, $toEncoding, $fromEncoding)) {
 124                  $ok = false;
 125              }
 126          });
 127  
 128          return $ok ? $fromEncoding : false;
 129      }
 130  
 131      public static function mb_decode_mimeheader($s)
 132      {
 133          return iconv_mime_decode($s, 2, self::$internalEncoding);
 134      }
 135  
 136      public static function mb_encode_mimeheader($s, $charset = null, $transferEncoding = null, $linefeed = null, $indent = null)
 137      {
 138          trigger_error('mb_encode_mimeheader() is bugged. Please use iconv_mime_encode() instead', E_USER_WARNING);
 139      }
 140  
 141      public static function mb_decode_numericentity($s, $convmap, $encoding = null)
 142      {
 143          if (null !== $s && !\is_scalar($s) && !(\is_object($s) && \method_exists($s, '__toString'))) {
 144              trigger_error('mb_decode_numericentity() expects parameter 1 to be string, '.\gettype($s).' given', E_USER_WARNING);
 145  
 146              return null;
 147          }
 148  
 149          if (!\is_array($convmap) || !$convmap) {
 150              return false;
 151          }
 152  
 153          if (null !== $encoding && !\is_scalar($encoding)) {
 154              trigger_error('mb_decode_numericentity() expects parameter 3 to be string, '.\gettype($s).' given', E_USER_WARNING);
 155  
 156              return '';  // Instead of null (cf. mb_encode_numericentity).
 157          }
 158  
 159          $s = (string) $s;
 160          if ('' === $s) {
 161              return '';
 162          }
 163  
 164          $encoding = self::getEncoding($encoding);
 165  
 166          if ('UTF-8' === $encoding) {
 167              $encoding = null;
 168              if (!preg_match('//u', $s)) {
 169                  $s = @iconv('UTF-8', 'UTF-8//IGNORE', $s);
 170              }
 171          } else {
 172              $s = iconv($encoding, 'UTF-8//IGNORE', $s);
 173          }
 174  
 175          $cnt = floor(\count($convmap) / 4) * 4;
 176  
 177          for ($i = 0; $i < $cnt; $i += 4) {
 178              // collector_decode_htmlnumericentity ignores $convmap[$i + 3]
 179              $convmap[$i] += $convmap[$i + 2];
 180              $convmap[$i + 1] += $convmap[$i + 2];
 181          }
 182  
 183          $s = preg_replace_callback('/&#(?:0*([0-9]+)|x0*([0-9a-fA-F]+))(?!&);?/', function (array $m) use ($cnt, $convmap) {
 184              $c = isset($m[2]) ? (int) hexdec($m[2]) : $m[1];
 185              for ($i = 0; $i < $cnt; $i += 4) {
 186                  if ($c >= $convmap[$i] && $c <= $convmap[$i + 1]) {
 187                      return Mbstring::mb_chr($c - $convmap[$i + 2]);
 188                  }
 189              }
 190  
 191              return $m[0];
 192          }, $s);
 193  
 194          if (null === $encoding) {
 195              return $s;
 196          }
 197  
 198          return iconv('UTF-8', $encoding.'//IGNORE', $s);
 199      }
 200  
 201      public static function mb_encode_numericentity($s, $convmap, $encoding = null, $is_hex = false)
 202      {
 203          if (null !== $s && !\is_scalar($s) && !(\is_object($s) && \method_exists($s, '__toString'))) {
 204              trigger_error('mb_encode_numericentity() expects parameter 1 to be string, '.\gettype($s).' given', E_USER_WARNING);
 205  
 206              return null;
 207          }
 208  
 209          if (!\is_array($convmap) || !$convmap) {
 210              return false;
 211          }
 212  
 213          if (null !== $encoding && !\is_scalar($encoding)) {
 214              trigger_error('mb_encode_numericentity() expects parameter 3 to be string, '.\gettype($s).' given', E_USER_WARNING);
 215  
 216              return null;  // Instead of '' (cf. mb_decode_numericentity).
 217          }
 218  
 219          if (null !== $is_hex && !\is_scalar($is_hex)) {
 220              trigger_error('mb_encode_numericentity() expects parameter 4 to be boolean, '.\gettype($s).' given', E_USER_WARNING);
 221  
 222              return null;
 223          }
 224  
 225          $s = (string) $s;
 226          if ('' === $s) {
 227              return '';
 228          }
 229  
 230          $encoding = self::getEncoding($encoding);
 231  
 232          if ('UTF-8' === $encoding) {
 233              $encoding = null;
 234              if (!preg_match('//u', $s)) {
 235                  $s = @iconv('UTF-8', 'UTF-8//IGNORE', $s);
 236              }
 237          } else {
 238              $s = iconv($encoding, 'UTF-8//IGNORE', $s);
 239          }
 240  
 241          static $ulenMask = array("\xC0" => 2, "\xD0" => 2, "\xE0" => 3, "\xF0" => 4);
 242  
 243          $cnt = floor(\count($convmap) / 4) * 4;
 244          $i = 0;
 245          $len = \strlen($s);
 246          $result = '';
 247  
 248          while ($i < $len) {
 249              $ulen = $s[$i] < "\x80" ? 1 : $ulenMask[$s[$i] & "\xF0"];
 250              $uchr = substr($s, $i, $ulen);
 251              $i += $ulen;
 252              $c = self::mb_ord($uchr);
 253  
 254              for ($j = 0; $j < $cnt; $j += 4) {
 255                  if ($c >= $convmap[$j] && $c <= $convmap[$j + 1]) {
 256                      $cOffset = ($c + $convmap[$j + 2]) & $convmap[$j + 3];
 257                      $result .= $is_hex ? sprintf('&#x%X;', $cOffset) : '&#'.$cOffset.';';
 258                      continue 2;
 259                  }
 260              }
 261              $result .= $uchr;
 262          }
 263  
 264          if (null === $encoding) {
 265              return $result;
 266          }
 267  
 268          return iconv('UTF-8', $encoding.'//IGNORE', $result);
 269      }
 270  
 271      public static function mb_convert_case($s, $mode, $encoding = null)
 272      {
 273          $s = (string) $s;
 274          if ('' === $s) {
 275              return '';
 276          }
 277  
 278          $encoding = self::getEncoding($encoding);
 279  
 280          if ('UTF-8' === $encoding) {
 281              $encoding = null;
 282              if (!preg_match('//u', $s)) {
 283                  $s = @iconv('UTF-8', 'UTF-8//IGNORE', $s);
 284              }
 285          } else {
 286              $s = iconv($encoding, 'UTF-8//IGNORE', $s);
 287          }
 288  
 289          if (MB_CASE_TITLE == $mode) {
 290              static $titleRegexp = null;
 291              if (null === $titleRegexp) {
 292                  $titleRegexp = self::getData('titleCaseRegexp');
 293              }
 294              $s = preg_replace_callback($titleRegexp, array(__CLASS__, 'title_case'), $s);
 295          } else {
 296              if (MB_CASE_UPPER == $mode) {
 297                  static $upper = null;
 298                  if (null === $upper) {
 299                      $upper = self::getData('upperCase');
 300                  }
 301                  $map = $upper;
 302              } else {
 303                  if (self::MB_CASE_FOLD === $mode) {
 304                      $s = str_replace(self::$caseFold[0], self::$caseFold[1], $s);
 305                  }
 306  
 307                  static $lower = null;
 308                  if (null === $lower) {
 309                      $lower = self::getData('lowerCase');
 310                  }
 311                  $map = $lower;
 312              }
 313  
 314              static $ulenMask = array("\xC0" => 2, "\xD0" => 2, "\xE0" => 3, "\xF0" => 4);
 315  
 316              $i = 0;
 317              $len = \strlen($s);
 318  
 319              while ($i < $len) {
 320                  $ulen = $s[$i] < "\x80" ? 1 : $ulenMask[$s[$i] & "\xF0"];
 321                  $uchr = substr($s, $i, $ulen);
 322                  $i += $ulen;
 323  
 324                  if (isset($map[$uchr])) {
 325                      $uchr = $map[$uchr];
 326                      $nlen = \strlen($uchr);
 327  
 328                      if ($nlen == $ulen) {
 329                          $nlen = $i;
 330                          do {
 331                              $s[--$nlen] = $uchr[--$ulen];
 332                          } while ($ulen);
 333                      } else {
 334                          $s = substr_replace($s, $uchr, $i - $ulen, $ulen);
 335                          $len += $nlen - $ulen;
 336                          $i += $nlen - $ulen;
 337                      }
 338                  }
 339              }
 340          }
 341  
 342          if (null === $encoding) {
 343              return $s;
 344          }
 345  
 346          return iconv('UTF-8', $encoding.'//IGNORE', $s);
 347      }
 348  
 349      public static function mb_internal_encoding($encoding = null)
 350      {
 351          if (null === $encoding) {
 352              return self::$internalEncoding;
 353          }
 354  
 355          $encoding = self::getEncoding($encoding);
 356  
 357          if ('UTF-8' === $encoding || false !== @iconv($encoding, $encoding, ' ')) {
 358              self::$internalEncoding = $encoding;
 359  
 360              return true;
 361          }
 362  
 363          return false;
 364      }
 365  
 366      public static function mb_language($lang = null)
 367      {
 368          if (null === $lang) {
 369              return self::$language;
 370          }
 371  
 372          switch ($lang = strtolower($lang)) {
 373              case 'uni':
 374              case 'neutral':
 375                  self::$language = $lang;
 376  
 377                  return true;
 378          }
 379  
 380          return false;
 381      }
 382  
 383      public static function mb_list_encodings()
 384      {
 385          return array('UTF-8');
 386      }
 387  
 388      public static function mb_encoding_aliases($encoding)
 389      {
 390          switch (strtoupper($encoding)) {
 391              case 'UTF8':
 392              case 'UTF-8':
 393                  return array('utf8');
 394          }
 395  
 396          return false;
 397      }
 398  
 399      public static function mb_check_encoding($var = null, $encoding = null)
 400      {
 401          if (null === $encoding) {
 402              if (null === $var) {
 403                  return false;
 404              }
 405              $encoding = self::$internalEncoding;
 406          }
 407  
 408          return self::mb_detect_encoding($var, array($encoding)) || false !== @iconv($encoding, $encoding, $var);
 409      }
 410  
 411      public static function mb_detect_encoding($str, $encodingList = null, $strict = false)
 412      {
 413          if (null === $encodingList) {
 414              $encodingList = self::$encodingList;
 415          } else {
 416              if (!\is_array($encodingList)) {
 417                  $encodingList = array_map('trim', explode(',', $encodingList));
 418              }
 419              $encodingList = array_map('strtoupper', $encodingList);
 420          }
 421  
 422          foreach ($encodingList as $enc) {
 423              switch ($enc) {
 424                  case 'ASCII':
 425                      if (!preg_match('/[\x80-\xFF]/', $str)) {
 426                          return $enc;
 427                      }
 428                      break;
 429  
 430                  case 'UTF8':
 431                  case 'UTF-8':
 432                      if (preg_match('//u', $str)) {
 433                          return 'UTF-8';
 434                      }
 435                      break;
 436  
 437                  default:
 438                      if (0 === strncmp($enc, 'ISO-8859-', 9)) {
 439                          return $enc;
 440                      }
 441              }
 442          }
 443  
 444          return false;
 445      }
 446  
 447      public static function mb_detect_order($encodingList = null)
 448      {
 449          if (null === $encodingList) {
 450              return self::$encodingList;
 451          }
 452  
 453          if (!\is_array($encodingList)) {
 454              $encodingList = array_map('trim', explode(',', $encodingList));
 455          }
 456          $encodingList = array_map('strtoupper', $encodingList);
 457  
 458          foreach ($encodingList as $enc) {
 459              switch ($enc) {
 460                  default:
 461                      if (strncmp($enc, 'ISO-8859-', 9)) {
 462                          return false;
 463                      }
 464                      // no break
 465                  case 'ASCII':
 466                  case 'UTF8':
 467                  case 'UTF-8':
 468              }
 469          }
 470  
 471          self::$encodingList = $encodingList;
 472  
 473          return true;
 474      }
 475  
 476      public static function mb_strlen($s, $encoding = null)
 477      {
 478          $encoding = self::getEncoding($encoding);
 479          if ('CP850' === $encoding || 'ASCII' === $encoding) {
 480              return \strlen($s);
 481          }
 482  
 483          return @iconv_strlen($s, $encoding);
 484      }
 485  
 486      public static function mb_strpos($haystack, $needle, $offset = 0, $encoding = null)
 487      {
 488          $encoding = self::getEncoding($encoding);
 489          if ('CP850' === $encoding || 'ASCII' === $encoding) {
 490              return strpos($haystack, $needle, $offset);
 491          }
 492  
 493          $needle = (string) $needle;
 494          if ('' === $needle) {
 495              trigger_error(__METHOD__.': Empty delimiter', E_USER_WARNING);
 496  
 497              return false;
 498          }
 499  
 500          return iconv_strpos($haystack, $needle, $offset, $encoding);
 501      }
 502  
 503      public static function mb_strrpos($haystack, $needle, $offset = 0, $encoding = null)
 504      {
 505          $encoding = self::getEncoding($encoding);
 506          if ('CP850' === $encoding || 'ASCII' === $encoding) {
 507              return strrpos($haystack, $needle, $offset);
 508          }
 509  
 510          if ($offset != (int) $offset) {
 511              $offset = 0;
 512          } elseif ($offset = (int) $offset) {
 513              if ($offset < 0) {
 514                  $haystack = self::mb_substr($haystack, 0, $offset, $encoding);
 515                  $offset = 0;
 516              } else {
 517                  $haystack = self::mb_substr($haystack, $offset, 2147483647, $encoding);
 518              }
 519          }
 520  
 521          $pos = iconv_strrpos($haystack, $needle, $encoding);
 522  
 523          return false !== $pos ? $offset + $pos : false;
 524      }
 525  
 526      public static function mb_strtolower($s, $encoding = null)
 527      {
 528          return self::mb_convert_case($s, MB_CASE_LOWER, $encoding);
 529      }
 530  
 531      public static function mb_strtoupper($s, $encoding = null)
 532      {
 533          return self::mb_convert_case($s, MB_CASE_UPPER, $encoding);
 534      }
 535  
 536      public static function mb_substitute_character($c = null)
 537      {
 538          if (0 === strcasecmp($c, 'none')) {
 539              return true;
 540          }
 541  
 542          return null !== $c ? false : 'none';
 543      }
 544  
 545      public static function mb_substr($s, $start, $length = null, $encoding = null)
 546      {
 547          $encoding = self::getEncoding($encoding);
 548          if ('CP850' === $encoding || 'ASCII' === $encoding) {
 549              return substr($s, $start, null === $length ? 2147483647 : $length);
 550          }
 551  
 552          if ($start < 0) {
 553              $start = iconv_strlen($s, $encoding) + $start;
 554              if ($start < 0) {
 555                  $start = 0;
 556              }
 557          }
 558  
 559          if (null === $length) {
 560              $length = 2147483647;
 561          } elseif ($length < 0) {
 562              $length = iconv_strlen($s, $encoding) + $length - $start;
 563              if ($length < 0) {
 564                  return '';
 565              }
 566          }
 567  
 568          return (string) iconv_substr($s, $start, $length, $encoding);
 569      }
 570  
 571      public static function mb_stripos($haystack, $needle, $offset = 0, $encoding = null)
 572      {
 573          $haystack = self::mb_convert_case($haystack, self::MB_CASE_FOLD, $encoding);
 574          $needle = self::mb_convert_case($needle, self::MB_CASE_FOLD, $encoding);
 575  
 576          return self::mb_strpos($haystack, $needle, $offset, $encoding);
 577      }
 578  
 579      public static function mb_stristr($haystack, $needle, $part = false, $encoding = null)
 580      {
 581          $pos = self::mb_stripos($haystack, $needle, 0, $encoding);
 582  
 583          return self::getSubpart($pos, $part, $haystack, $encoding);
 584      }
 585  
 586      public static function mb_strrchr($haystack, $needle, $part = false, $encoding = null)
 587      {
 588          $encoding = self::getEncoding($encoding);
 589          if ('CP850' === $encoding || 'ASCII' === $encoding) {
 590              return strrchr($haystack, $needle, $part);
 591          }
 592          $needle = self::mb_substr($needle, 0, 1, $encoding);
 593          $pos = iconv_strrpos($haystack, $needle, $encoding);
 594  
 595          return self::getSubpart($pos, $part, $haystack, $encoding);
 596      }
 597  
 598      public static function mb_strrichr($haystack, $needle, $part = false, $encoding = null)
 599      {
 600          $needle = self::mb_substr($needle, 0, 1, $encoding);
 601          $pos = self::mb_strripos($haystack, $needle, $encoding);
 602  
 603          return self::getSubpart($pos, $part, $haystack, $encoding);
 604      }
 605  
 606      public static function mb_strripos($haystack, $needle, $offset = 0, $encoding = null)
 607      {
 608          $haystack = self::mb_convert_case($haystack, self::MB_CASE_FOLD, $encoding);
 609          $needle = self::mb_convert_case($needle, self::MB_CASE_FOLD, $encoding);
 610  
 611          return self::mb_strrpos($haystack, $needle, $offset, $encoding);
 612      }
 613  
 614      public static function mb_strstr($haystack, $needle, $part = false, $encoding = null)
 615      {
 616          $pos = strpos($haystack, $needle);
 617          if (false === $pos) {
 618              return false;
 619          }
 620          if ($part) {
 621              return substr($haystack, 0, $pos);
 622          }
 623  
 624          return substr($haystack, $pos);
 625      }
 626  
 627      public static function mb_get_info($type = 'all')
 628      {
 629          $info = array(
 630              'internal_encoding' => self::$internalEncoding,
 631              'http_output' => 'pass',
 632              'http_output_conv_mimetypes' => '^(text/|application/xhtml\+xml)',
 633              'func_overload' => 0,
 634              'func_overload_list' => 'no overload',
 635              'mail_charset' => 'UTF-8',
 636              'mail_header_encoding' => 'BASE64',
 637              'mail_body_encoding' => 'BASE64',
 638              'illegal_chars' => 0,
 639              'encoding_translation' => 'Off',
 640              'language' => self::$language,
 641              'detect_order' => self::$encodingList,
 642              'substitute_character' => 'none',
 643              'strict_detection' => 'Off',
 644          );
 645  
 646          if ('all' === $type) {
 647              return $info;
 648          }
 649          if (isset($info[$type])) {
 650              return $info[$type];
 651          }
 652  
 653          return false;
 654      }
 655  
 656      public static function mb_http_input($type = '')
 657      {
 658          return false;
 659      }
 660  
 661      public static function mb_http_output($encoding = null)
 662      {
 663          return null !== $encoding ? 'pass' === $encoding : 'pass';
 664      }
 665  
 666      public static function mb_strwidth($s, $encoding = null)
 667      {
 668          $encoding = self::getEncoding($encoding);
 669  
 670          if ('UTF-8' !== $encoding) {
 671              $s = iconv($encoding, 'UTF-8//IGNORE', $s);
 672          }
 673  
 674          $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, $wide);
 675  
 676          return ($wide << 1) + iconv_strlen($s, 'UTF-8');
 677      }
 678  
 679      public static function mb_substr_count($haystack, $needle, $encoding = null)
 680      {
 681          return substr_count($haystack, $needle);
 682      }
 683  
 684      public static function mb_output_handler($contents, $status)
 685      {
 686          return $contents;
 687      }
 688  
 689      public static function mb_chr($code, $encoding = null)
 690      {
 691          if (0x80 > $code %= 0x200000) {
 692              $s = \chr($code);
 693          } elseif (0x800 > $code) {
 694              $s = \chr(0xC0 | $code >> 6).\chr(0x80 | $code & 0x3F);
 695          } elseif (0x10000 > $code) {
 696              $s = \chr(0xE0 | $code >> 12).\chr(0x80 | $code >> 6 & 0x3F).\chr(0x80 | $code & 0x3F);
 697          } else {
 698              $s = \chr(0xF0 | $code >> 18).\chr(0x80 | $code >> 12 & 0x3F).\chr(0x80 | $code >> 6 & 0x3F).\chr(0x80 | $code & 0x3F);
 699          }
 700  
 701          if ('UTF-8' !== $encoding = self::getEncoding($encoding)) {
 702              $s = mb_convert_encoding($s, $encoding, 'UTF-8');
 703          }
 704  
 705          return $s;
 706      }
 707  
 708      public static function mb_ord($s, $encoding = null)
 709      {
 710          if ('UTF-8' !== $encoding = self::getEncoding($encoding)) {
 711              $s = mb_convert_encoding($s, 'UTF-8', $encoding);
 712          }
 713  
 714          if (1 === \strlen($s)) {
 715              return \ord($s);
 716          }
 717  
 718          $code = ($s = unpack('C*', substr($s, 0, 4))) ? $s[1] : 0;
 719          if (0xF0 <= $code) {
 720              return (($code - 0xF0) << 18) + (($s[2] - 0x80) << 12) + (($s[3] - 0x80) << 6) + $s[4] - 0x80;
 721          }
 722          if (0xE0 <= $code) {
 723              return (($code - 0xE0) << 12) + (($s[2] - 0x80) << 6) + $s[3] - 0x80;
 724          }
 725          if (0xC0 <= $code) {
 726              return (($code - 0xC0) << 6) + $s[2] - 0x80;
 727          }
 728  
 729          return $code;
 730      }
 731  
 732      private static function getSubpart($pos, $part, $haystack, $encoding)
 733      {
 734          if (false === $pos) {
 735              return false;
 736          }
 737          if ($part) {
 738              return self::mb_substr($haystack, 0, $pos, $encoding);
 739          }
 740  
 741          return self::mb_substr($haystack, $pos, null, $encoding);
 742      }
 743  
 744      private static function html_encoding_callback(array $m)
 745      {
 746          $i = 1;
 747          $entities = '';
 748          $m = unpack('C*', htmlentities($m[0], ENT_COMPAT, 'UTF-8'));
 749  
 750          while (isset($m[$i])) {
 751              if (0x80 > $m[$i]) {
 752                  $entities .= \chr($m[$i++]);
 753                  continue;
 754              }
 755              if (0xF0 <= $m[$i]) {
 756                  $c = (($m[$i++] - 0xF0) << 18) + (($m[$i++] - 0x80) << 12) + (($m[$i++] - 0x80) << 6) + $m[$i++] - 0x80;
 757              } elseif (0xE0 <= $m[$i]) {
 758                  $c = (($m[$i++] - 0xE0) << 12) + (($m[$i++] - 0x80) << 6) + $m[$i++] - 0x80;
 759              } else {
 760                  $c = (($m[$i++] - 0xC0) << 6) + $m[$i++] - 0x80;
 761              }
 762  
 763              $entities .= '&#'.$c.';';
 764          }
 765  
 766          return $entities;
 767      }
 768  
 769      private static function title_case(array $s)
 770      {
 771          return self::mb_convert_case($s[1], MB_CASE_UPPER, 'UTF-8').self::mb_convert_case($s[2], MB_CASE_LOWER, 'UTF-8');
 772      }
 773  
 774      private static function getData($file)
 775      {
 776          if (file_exists($file = __DIR__.'/Resources/unidata/'.$file.'.php')) {
 777              return require $file;
 778          }
 779  
 780          return false;
 781      }
 782  
 783      private static function getEncoding($encoding)
 784      {
 785          if (null === $encoding) {
 786              return self::$internalEncoding;
 787          }
 788  
 789          $encoding = strtoupper($encoding);
 790  
 791          if ('8BIT' === $encoding || 'BINARY' === $encoding) {
 792              return 'CP850';
 793          }
 794          if ('UTF8' === $encoding) {
 795              return 'UTF-8';
 796          }
 797  
 798          return $encoding;
 799      }
 800  }


Generated: Tue Apr 7 19:42:26 2020 Cross-referenced by PHPXref 0.7.1