起動時に読まれない 1 /blog/wp-includes/class-json.php
呼出し元 :json_encode()
json_encode()関数を持っている環境では必要ありません。
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 | <?php if ( ! class_exists( 'Services_JSON' ) ) : /* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */ /** * Converts to and from JSON format. * * JSON (JavaScript Object Notation) is a lightweight data-interchange * format. It is easy for humans to read and write. It is easy for machines * to parse and generate. It is based on a subset of the JavaScript * Programming Language, Standard ECMA-262 3rd Edition - December 1999. * This feature can also be found in Python. JSON is a text format that is * completely language independent but uses conventions that are familiar * to programmers of the C-family of languages, including C, C++, C#, Java, * JavaScript, Perl, TCL, and many others. These properties make JSON an * ideal data-interchange language. * * This package provides a simple encoder and decoder for JSON notation. It * is intended for use with client-side Javascript applications that make * use of HTTPRequest to perform server communication functions - data can * be encoded into JSON notation for use in a client-side javascript, or * decoded from incoming Javascript requests. JSON format is native to * Javascript, and can be directly eval()'ed with no further parsing * overhead * * All strings should be in ASCII or UTF-8 format! * * LICENSE: Redistribution and use in source and binary forms, with or * without modification, are permitted provided that the following * conditions are met: Redistributions of source code must retain the * above copyright notice, this list of conditions and the following * disclaimer. Redistributions in binary form must reproduce the above * copyright notice, this list of conditions and the following disclaimer * in the documentation and/or other materials provided with the * distribution. * * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN * NO EVENT SHALL CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE * USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH * DAMAGE. * * @category * @package Services_JSON * @author Michal Migurski <mike-json@teczno.com> * @author Matt Knapp <mdknapp[at]gmail[dot]com> * @author Brett Stimmerman <brettstimmerman[at]gmail[dot]com> * @copyright 2005 Michal Migurski * @version CVS: $Id: JSON.php 305040 2010-11-02 23:19:03Z alan_k $ * @license http://www.opensource.org/licenses/bsd-license.php * @link http://pear.php.net/pepr/pepr-proposal-show.php?id=198 */ /** * Marker constant for Services_JSON::decode(), used to flag stack state */ define('SERVICES_JSON_SLICE', 1); /** * Marker constant for Services_JSON::decode(), used to flag stack state */ define('SERVICES_JSON_IN_STR', 2); /** * Marker constant for Services_JSON::decode(), used to flag stack state */ define('SERVICES_JSON_IN_ARR', 3); /** * Marker constant for Services_JSON::decode(), used to flag stack state */ define('SERVICES_JSON_IN_OBJ', 4); /** * Marker constant for Services_JSON::decode(), used to flag stack state */ define('SERVICES_JSON_IN_CMT', 5); /** * Behavior switch for Services_JSON::decode() */ define('SERVICES_JSON_LOOSE_TYPE', 16); /** * Behavior switch for Services_JSON::decode() */ define('SERVICES_JSON_SUPPRESS_ERRORS', 32); /** * Behavior switch for Services_JSON::decode() */ define('SERVICES_JSON_USE_TO_JSON', 64); /** * Converts to and from JSON format. * * Brief example of use: * * <code> * // create a new instance of Services_JSON * $json = new Services_JSON(); * * // convert a complexe value to JSON notation, and send it to the browser * $value = array('foo', 'bar', array(1, 2, 'baz'), array(3, array(4))); * $output = $json->encode($value); * * print($output); * // prints: ["foo","bar",[1,2,"baz"],[3,[4]]] * * // accept incoming POST data, assumed to be in JSON notation * $input = file_get_contents('php://input', 1000000); * $value = $json->decode($input); * */ class Services_JSON { /** * constructs a new JSON instance * * @param int $use object behavior flags; combine with boolean-OR * * possible values: * - SERVICES_JSON_LOOSE_TYPE: loose typing. * "{...}" syntax creates associative arrays * instead of objects in decode(). * - SERVICES_JSON_SUPPRESS_ERRORS: error suppression. * Values which can't be encoded (e.g. resources) * appear as NULL instead of throwing errors. * By default, a deeply-nested resource will * bubble up with an error, so all return values * from encode() should be checked with isError() * - SERVICES_JSON_USE_TO_JSON: call toJSON when serializing objects * It serializes the return value from the toJSON call rather * than the object it'self, toJSON can return associative arrays, * strings or numbers, if you return an object, make sure it does * not have a toJSON method, otherwise an error will occur. */ function Services_JSON($use = 0) { $this->use = $use; $this->_mb_strlen = function_exists('mb_strlen'); $this->_mb_convert_encoding = function_exists('mb_convert_encoding'); $this->_mb_substr = function_exists('mb_substr'); } // private - cache the mbstring lookup results.. var $_mb_strlen = false; var $_mb_substr = false; var $_mb_convert_encoding = false; /** * convert a string from one UTF-16 char to one UTF-8 char * * Normally should be handled by mb_convert_encoding, but * provides a slower PHP-only method for installations * that lack the multibye string extension. * * @param string $utf16 UTF-16 character * @return string UTF-8 character * @access private */ function utf162utf8($utf16) { // oh please oh please oh please oh please oh please if($this->_mb_convert_encoding) { return mb_convert_encoding($utf16, 'UTF-8', 'UTF-16'); } $bytes = (ord($utf16{0}) << 8) | ord($utf16{1}); switch(true) { case ((0x7F & $bytes) == $bytes): // this case should never be reached, because we are in ASCII range // see: http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8 return chr(0x7F & $bytes); case (0x07FF & $bytes) == $bytes: // return a 2-byte UTF-8 character // see: http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8 return chr(0xC0 | (($bytes >> 6) & 0x1F)) . chr(0x80 | ($bytes & 0x3F)); case (0xFFFF & $bytes) == $bytes: // return a 3-byte UTF-8 character // see: http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8 return chr(0xE0 | (($bytes >> 12) & 0x0F)) . chr(0x80 | (($bytes >> 6) & 0x3F)) . chr(0x80 | ($bytes & 0x3F)); } // ignoring UTF-32 for now, sorry return ''; } /** * convert a string from one UTF-8 char to one UTF-16 char * * Normally should be handled by mb_convert_encoding, but * provides a slower PHP-only method for installations * that lack the multibye string extension. * * @param string $utf8 UTF-8 character * @return string UTF-16 character * @access private */ function utf82utf16($utf8) { // oh please oh please oh please oh please oh please if($this->_mb_convert_encoding) { return mb_convert_encoding($utf8, 'UTF-16', 'UTF-8'); } switch($this->strlen8($utf8)) { case 1: // this case should never be reached, because we are in ASCII range // see: http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8 return $utf8; case 2: // return a UTF-16 character from a 2-byte UTF-8 char // see: http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8 return chr(0x07 & (ord($utf8{0}) >> 2)) . chr((0xC0 & (ord($utf8{0}) << 6)) | (0x3F & ord($utf8{1}))); case 3: // return a UTF-16 character from a 3-byte UTF-8 char // see: http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8 return chr((0xF0 & (ord($utf8{0}) << 4)) | (0x0F & (ord($utf8{1}) >> 2))) . chr((0xC0 & (ord($utf8{1}) << 6)) | (0x7F & ord($utf8{2}))); } // ignoring UTF-32 for now, sorry return ''; } /** * encodes an arbitrary variable into JSON format (and sends JSON Header) * * @param mixed $var any number, boolean, string, array, or object to be encoded. * see argument 1 to Services_JSON() above for array-parsing behavior. * if var is a strng, note that encode() always expects it * to be in ASCII or UTF-8 format! * * @return mixed JSON string representation of input var or an error if a problem occurs * @access public */ function encode($var) { header('Content-type: application/json'); return $this->encodeUnsafe($var); } /** * encodes an arbitrary variable into JSON format without JSON Header - warning - may allow XSS!!!!) * * @param mixed $var any number, boolean, string, array, or object to be encoded. * see argument 1 to Services_JSON() above for array-parsing behavior. * if var is a strng, note that encode() always expects it * to be in ASCII or UTF-8 format! * * @return mixed JSON string representation of input var or an error if a problem occurs * @access public */ function encodeUnsafe($var) { // see bug #16908 - regarding numeric locale printing $lc = setlocale(LC_NUMERIC, 0); setlocale(LC_NUMERIC, 'C'); $ret = $this->_encode($var); setlocale(LC_NUMERIC, $lc); return $ret; } /** * PRIVATE CODE that does the work of encodes an arbitrary variable into JSON format * * @param mixed $var any number, boolean, string, array, or object to be encoded. * see argument 1 to Services_JSON() above for array-parsing behavior. * if var is a strng, note that encode() always expects it * to be in ASCII or UTF-8 format! * * @return mixed JSON string representation of input var or an error if a problem occurs * @access public */ function _encode($var) { switch (gettype($var)) { case 'boolean': return $var ? 'true' : 'false'; case 'NULL': return 'null'; case 'integer': return (int) $var; case 'double': case 'float': return (float) $var; case 'string': // STRINGS ARE EXPECTED TO BE IN ASCII OR UTF-8 FORMAT $ascii = ''; $strlen_var = $this->strlen8($var); /* * Iterate over every character in the string, * escaping with a slash or encoding to UTF-8 where necessary */ for ($c = 0; $c < $strlen_var; ++$c) { $ord_var_c = ord($var{$c}); switch (true) { case $ord_var_c == 0x08: $ascii .= '\b'; break; case $ord_var_c == 0x09: $ascii .= '\t'; break; case $ord_var_c == 0x0A: $ascii .= '\n'; break; case $ord_var_c == 0x0C: $ascii .= '\f'; break; case $ord_var_c == 0x0D: $ascii .= '\r'; break; case $ord_var_c == 0x22: case $ord_var_c == 0x2F: case $ord_var_c == 0x5C: // double quote, slash, slosh $ascii .= '\\'.$var{$c}; break; case (($ord_var_c >= 0x20) && ($ord_var_c <= 0x7F)): // characters U-00000000 - U-0000007F (same as ASCII) $ascii .= $var{$c}; break; case (($ord_var_c & 0xE0) == 0xC0): // characters U-00000080 - U-000007FF, mask 110XXXXX // see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8 if ($c+1 >= $strlen_var) { $c += 1; $ascii .= '?'; break; } $char = pack('C*', $ord_var_c, ord($var{$c + 1})); $c += 1; $utf16 = $this->utf82utf16($char); $ascii .= sprintf('\u%04s', bin2hex($utf16)); break; case (($ord_var_c & 0xF0) == 0xE0): if ($c+2 >= $strlen_var) { $c += 2; $ascii .= '?'; break; } // characters U-00000800 - U-0000FFFF, mask 1110XXXX // see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8 $char = pack('C*', $ord_var_c, @ord($var{$c + 1}), @ord($var{$c + 2})); $c += 2; $utf16 = $this->utf82utf16($char); $ascii .= sprintf('\u%04s', bin2hex($utf16)); break; case (($ord_var_c & 0xF8) == 0xF0): if ($c+3 >= $strlen_var) { $c += 3; $ascii .= '?'; break; } // characters U-00010000 - U-001FFFFF, mask 11110XXX // see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8 $char = pack('C*', $ord_var_c, ord($var{$c + 1}), ord($var{$c + 2}), ord($var{$c + 3})); $c += 3; $utf16 = $this->utf82utf16($char); $ascii .= sprintf('\u%04s', bin2hex($utf16)); break; case (($ord_var_c & 0xFC) == 0xF8): // characters U-00200000 - U-03FFFFFF, mask 111110XX // see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8 if ($c+4 >= $strlen_var) { $c += 4; $ascii .= '?'; break; } $char = pack('C*', $ord_var_c, ord($var{$c + 1}), ord($var{$c + 2}), ord($var{$c + 3}), ord($var{$c + 4})); $c += 4; $utf16 = $this->utf82utf16($char); $ascii .= sprintf('\u%04s', bin2hex($utf16)); break; case (($ord_var_c & 0xFE) == 0xFC): if ($c+5 >= $strlen_var) { $c += 5; $ascii .= '?'; break; } // characters U-04000000 - U-7FFFFFFF, mask 1111110X // see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8 $char = pack('C*', $ord_var_c, ord($var{$c + 1}), ord($var{$c + 2}), ord($var{$c + 3}), ord($var{$c + 4}), ord($var{$c + 5})); $c += 5; $utf16 = $this->utf82utf16($char); $ascii .= sprintf('\u%04s', bin2hex($utf16)); break; } } return '"'.$ascii.'"'; case 'array': /* * As per JSON spec if any array key is not an integer * we must treat the the whole array as an object. We * also try to catch a sparsely populated associative * array with numeric keys here because some JS engines * will create an array with empty indexes up to * max_index which can cause memory issues and because * the keys, which may be relevant, will be remapped * otherwise. * * As per the ECMA and JSON specification an object may * have any string as a property. Unfortunately due to * a hole in the ECMA specification if the key is a * ECMA reserved word or starts with a digit the * parameter is only accessible using ECMAScript's * bracket notation. */ // treat as a JSON object if (is_array($var) && count($var) && (array_keys($var) !== range(0, sizeof($var) - 1))) { $properties = array_map(array($this, 'name_value'), array_keys($var), array_values($var)); foreach($properties as $property) { if(Services_JSON::isError($property)) { return $property; } } return '{' . join(',', $properties) . '}'; } // treat it like a regular array $elements = array_map(array($this, '_encode'), $var); foreach($elements as $element) { if(Services_JSON::isError($element)) { return $element; } } return '[' . join(',', $elements) . ']'; case 'object': // support toJSON methods. if (($this->use & SERVICES_JSON_USE_TO_JSON) && method_exists($var, 'toJSON')) { // this may end up allowing unlimited recursion // so we check the return value to make sure it's not got the same method. $recode = $var->toJSON(); if (method_exists($recode, 'toJSON')) { return ($this->use & SERVICES_JSON_SUPPRESS_ERRORS) ? 'null' : new Services_JSON_Error(get_class($var). " toJSON returned an object with a toJSON method."); } return $this->_encode( $recode ); } $vars = get_object_vars($var); $properties = array_map(array($this, 'name_value'), array_keys($vars), array_values($vars)); foreach($properties as $property) { if(Services_JSON::isError($property)) { return $property; } } return '{' . join(',', $properties) . '}'; default: return ($this->use & SERVICES_JSON_SUPPRESS_ERRORS) ? 'null' : new Services_JSON_Error(gettype($var)." can not be encoded as JSON string"); } } /** * array-walking function for use in generating JSON-formatted name-value pairs * * @param string $name name of key to use * @param mixed $value reference to an array element to be encoded * * @return string JSON-formatted name-value pair, like '"name":value' * @access private */ function name_value($name, $value) { $encoded_value = $this->_encode($value); if(Services_JSON::isError($encoded_value)) { return $encoded_value; } return $this->_encode(strval($name)) . ':' . $encoded_value; } /** * reduce a string by removing leading and trailing comments and whitespace * * @param $str string string value to strip of comments and whitespace * * @return string string value stripped of comments and whitespace * @access private */ function reduce_string($str) { $str = preg_replace(array( // eliminate single line comments in '// ...' form '#^\s*//(.+)$#m', // eliminate multi-line comments in '/* ... */' form, at start of string '#^\s*/\*(.+)\*/#Us', // eliminate multi-line comments in '/* ... */' form, at end of string '#/\*(.+)\*/\s*$#Us' ), '', $str); // eliminate extraneous space return trim($str); } /** * decodes a JSON string into appropriate variable * * @param string $str JSON-formatted string * * @return mixed number, boolean, string, array, or object * corresponding to given JSON input string. * See argument 1 to Services_JSON() above for object-output behavior. * Note that decode() always returns strings * in ASCII or UTF-8 format! * @access public */ function decode($str) { $str = $this->reduce_string($str); switch (strtolower($str)) { case 'true': return true; case 'false': return false; case 'null': return null; default: $m = array(); if (is_numeric($str)) { // Lookie-loo, it's a number // This would work on its own, but I'm trying to be // good about returning integers where appropriate: // return (float)$str; // Return float or int, as appropriate return ((float)$str == (integer)$str) ? (integer)$str : (float)$str; } elseif (preg_match('/^("|\').*(\1)$/s', $str, $m) && $m[1] == $m[2]) { // STRINGS RETURNED IN UTF-8 FORMAT $delim = $this->substr8($str, 0, 1); $chrs = $this->substr8($str, 1, -1); $utf8 = ''; $strlen_chrs = $this->strlen8($chrs); for ($c = 0; $c < $strlen_chrs; ++$c) { $substr_chrs_c_2 = $this->substr8($chrs, $c, 2); $ord_chrs_c = ord($chrs{$c}); switch (true) { case $substr_chrs_c_2 == '\b': $utf8 .= chr(0x08); ++$c; break; case $substr_chrs_c_2 == '\t': $utf8 .= chr(0x09); ++$c; break; case $substr_chrs_c_2 == '\n': $utf8 .= chr(0x0A); ++$c; break; case $substr_chrs_c_2 == '\f': $utf8 .= chr(0x0C); ++$c; break; case $substr_chrs_c_2 == '\r': $utf8 .= chr(0x0D); ++$c; break; case $substr_chrs_c_2 == '\\"': case $substr_chrs_c_2 == '\\\'': case $substr_chrs_c_2 == '\\\\': case $substr_chrs_c_2 == '\\/': if (($delim == '"' && $substr_chrs_c_2 != '\\\'') || ($delim == "'" && $substr_chrs_c_2 != '\\"')) { $utf8 .= $chrs{++$c}; } break; case preg_match('/\\\u[0-9A-F]{4}/i', $this->substr8($chrs, $c, 6)): // single, escaped unicode character $utf16 = chr(hexdec($this->substr8($chrs, ($c + 2), 2))) . chr(hexdec($this->substr8($chrs, ($c + 4), 2))); $utf8 .= $this->utf162utf8($utf16); $c += 5; break; case ($ord_chrs_c >= 0x20) && ($ord_chrs_c <= 0x7F): $utf8 .= $chrs{$c}; break; case ($ord_chrs_c & 0xE0) == 0xC0: // characters U-00000080 - U-000007FF, mask 110XXXXX //see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8 $utf8 .= $this->substr8($chrs, $c, 2); ++$c; break; case ($ord_chrs_c & 0xF0) == 0xE0: // characters U-00000800 - U-0000FFFF, mask 1110XXXX // see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8 $utf8 .= $this->substr8($chrs, $c, 3); $c += 2; break; case ($ord_chrs_c & 0xF8) == 0xF0: // characters U-00010000 - U-001FFFFF, mask 11110XXX // see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8 $utf8 .= $this->substr8($chrs, $c, 4); $c += 3; break; case ($ord_chrs_c & 0xFC) == 0xF8: // characters U-00200000 - U-03FFFFFF, mask 111110XX // see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8 $utf8 .= $this->substr8($chrs, $c, 5); $c += 4; break; case ($ord_chrs_c & 0xFE) == 0xFC: // characters U-04000000 - U-7FFFFFFF, mask 1111110X // see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8 $utf8 .= $this->substr8($chrs, $c, 6); $c += 5; break; } } return $utf8; } elseif (preg_match('/^\[.*\]$/s', $str) || preg_match('/^\{.*\}$/s', $str)) { // array, or object notation if ($str{0} == '[') { $stk = array(SERVICES_JSON_IN_ARR); $arr = array(); } else { if ($this->use & SERVICES_JSON_LOOSE_TYPE) { $stk = array(SERVICES_JSON_IN_OBJ); $obj = array(); } else { $stk = array(SERVICES_JSON_IN_OBJ); $obj = new stdClass(); } } array_push($stk, array('what' => SERVICES_JSON_SLICE, 'where' => 0, 'delim' => false)); $chrs = $this->substr8($str, 1, -1); $chrs = $this->reduce_string($chrs); if ($chrs == '') { if (reset($stk) == SERVICES_JSON_IN_ARR) { return $arr; } else { return $obj; } } //print("\nparsing {$chrs}\n"); $strlen_chrs = $this->strlen8($chrs); for ($c = 0; $c <= $strlen_chrs; ++$c) { $top = end($stk); $substr_chrs_c_2 = $this->substr8($chrs, $c, 2); if (($c == $strlen_chrs) || (($chrs{$c} == ',') && ($top['what'] == SERVICES_JSON_SLICE))) { // found a comma that is not inside a string, array, etc., // OR we've reached the end of the character list $slice = $this->substr8($chrs, $top['where'], ($c - $top['where'])); array_push($stk, array('what' => SERVICES_JSON_SLICE, 'where' => ($c + 1), 'delim' => false)); //print("Found split at {$c}: ".$this->substr8($chrs, $top['where'], (1 + $c - $top['where']))."\n"); if (reset($stk) == SERVICES_JSON_IN_ARR) { // we are in an array, so just push an element onto the stack array_push($arr, $this->decode($slice)); } elseif (reset($stk) == SERVICES_JSON_IN_OBJ) { // we are in an object, so figure // out the property name and set an // element in an associative array, // for now $parts = array(); if (preg_match('/^\s*(["\'].*[^\\\]["\'])\s*:/Uis', $slice, $parts)) { // "name":value pair $key = $this->decode($parts[1]); $val = $this->decode(trim(substr($slice, strlen($parts[0])), ", \t\n\r\0\x0B")); if ($this->use & SERVICES_JSON_LOOSE_TYPE) { $obj[$key] = $val; } else { $obj->$key = $val; } } elseif (preg_match('/^\s*(\w+)\s*:/Uis', $slice, $parts)) { // name:value pair, where name is unquoted $key = $parts[1]; $val = $this->decode(trim(substr($slice, strlen($parts[0])), ", \t\n\r\0\x0B")); if ($this->use & SERVICES_JSON_LOOSE_TYPE) { $obj[$key] = $val; } else { $obj->$key = $val; } } } } elseif ((($chrs{$c} == '"') || ($chrs{$c} == "'")) && ($top['what'] != SERVICES_JSON_IN_STR)) { // found a quote, and we are not inside a string array_push($stk, array('what' => SERVICES_JSON_IN_STR, 'where' => $c, 'delim' => $chrs{$c})); //print("Found start of string at {$c}\n"); } elseif (($chrs{$c} == $top['delim']) && ($top['what'] == SERVICES_JSON_IN_STR) && (($this->strlen8($this->substr8($chrs, 0, $c)) - $this->strlen8(rtrim($this->substr8($chrs, 0, $c), '\\'))) % 2 != 1)) { // found a quote, we're in a string, and it's not escaped // we know that it's not escaped becase there is _not_ an // odd number of backslashes at the end of the string so far array_pop($stk); //print("Found end of string at {$c}: ".$this->substr8($chrs, $top['where'], (1 + 1 + $c - $top['where']))."\n"); } elseif (($chrs{$c} == '[') && in_array($top['what'], array(SERVICES_JSON_SLICE, SERVICES_JSON_IN_ARR, SERVICES_JSON_IN_OBJ))) { // found a left-bracket, and we are in an array, object, or slice array_push($stk, array('what' => SERVICES_JSON_IN_ARR, 'where' => $c, 'delim' => false)); //print("Found start of array at {$c}\n"); } elseif (($chrs{$c} == ']') && ($top['what'] == SERVICES_JSON_IN_ARR)) { // found a right-bracket, and we're in an array array_pop($stk); //print("Found end of array at {$c}: ".$this->substr8($chrs, $top['where'], (1 + $c - $top['where']))."\n"); } elseif (($chrs{$c} == '{') && in_array($top['what'], array(SERVICES_JSON_SLICE, SERVICES_JSON_IN_ARR, SERVICES_JSON_IN_OBJ))) { // found a left-brace, and we are in an array, object, or slice array_push($stk, array('what' => SERVICES_JSON_IN_OBJ, 'where' => $c, 'delim' => false)); //print("Found start of object at {$c}\n"); } elseif (($chrs{$c} == '}') && ($top['what'] == SERVICES_JSON_IN_OBJ)) { // found a right-brace, and we're in an object array_pop($stk); //print("Found end of object at {$c}: ".$this->substr8($chrs, $top['where'], (1 + $c - $top['where']))."\n"); } elseif (($substr_chrs_c_2 == '/*') && in_array($top['what'], array(SERVICES_JSON_SLICE, SERVICES_JSON_IN_ARR, SERVICES_JSON_IN_OBJ))) { // found a comment start, and we are in an array, object, or slice array_push($stk, array('what' => SERVICES_JSON_IN_CMT, 'where' => $c, 'delim' => false)); $c++; //print("Found start of comment at {$c}\n"); } elseif (($substr_chrs_c_2 == '*/') && ($top['what'] == SERVICES_JSON_IN_CMT)) { // found a comment end, and we're in one now array_pop($stk); $c++; for ($i = $top['where']; $i <= $c; ++$i) $chrs = substr_replace($chrs, ' ', $i, 1); //print("Found end of comment at {$c}: ".$this->substr8($chrs, $top['where'], (1 + $c - $top['where']))."\n"); } } if (reset($stk) == SERVICES_JSON_IN_ARR) { return $arr; } elseif (reset($stk) == SERVICES_JSON_IN_OBJ) { return $obj; } } } } /** * @todo Ultimately, this should just call PEAR::isError() */ function isError($data, $code = null) { if (class_exists('pear')) { return PEAR::isError($data, $code); } elseif (is_object($data) && (get_class($data) == 'services_json_error' || is_subclass_of($data, 'services_json_error'))) { return true; } return false; } /** * Calculates length of string in bytes * @param string * @return integer length */ function strlen8( $str ) { if ( $this->_mb_strlen ) { return mb_strlen( $str, "8bit" ); } return strlen( $str ); } /** * Returns part of a string, interpreting $start and $length as number of bytes. * @param string * @param integer start * @param integer length * @return integer length */ function substr8( $string, $start, $length=false ) { if ( $length === false ) { $length = $this->strlen8( $string ) - $start; } if ( $this->_mb_substr ) { return mb_substr( $string, $start, $length, "8bit" ); } return substr( $string, $start, $length ); } } if (class_exists('PEAR_Error')) { class Services_JSON_Error extends PEAR_Error { function Services_JSON_Error($message = 'unknown error', $code = null, $mode = null, $options = null, $userinfo = null) { parent::PEAR_Error($message, $code, $mode, $options, $userinfo); } } } else { /** * @todo Ultimately, this class shall be descended from PEAR_Error */ class Services_JSON_Error { function Services_JSON_Error($message = 'unknown error', $code = null, $mode = null, $options = null, $userinfo = null) { } } } endif; |