git.pond.sub.org Git - eow/blob - static/dojo-release-1.1.1/dojo/tests/resources/JSON.php

   1 <?php
   2 /* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */
   3
   4 /**
   5  * Converts to and from JSON format.
   6  *
   7  * JSON (JavaScript Object Notation) is a lightweight data-interchange
   8  * format. It is easy for humans to read and write. It is easy for machines
   9  * to parse and generate. It is based on a subset of the JavaScript
  10  * Programming Language, Standard ECMA-262 3rd Edition - December 1999.
  11  * This feature can also be found in  Python. JSON is a text format that is
  12  * completely language independent but uses conventions that are familiar
  13  * to programmers of the C-family of languages, including C, C++, C#, Java,
  14  * JavaScript, Perl, TCL, and many others. These properties make JSON an
  15  * ideal data-interchange language.
  16  *
  17  * This package provides a simple encoder and decoder for JSON notation. It
  18  * is intended for use with client-side Javascript applications that make
  19  * use of HTTPRequest to perform server communication functions - data can
  20  * be encoded into JSON notation for use in a client-side javascript, or
  21  * decoded from incoming Javascript requests. JSON format is native to
  22  * Javascript, and can be directly eval()'ed with no further parsing
  23  * overhead
  24  *
  25  * All strings should be in ASCII or UTF-8 format!
  26  *
  27  * LICENSE: Redistribution and use in source and binary forms, with or
  28  * without modification, are permitted provided that the following
  29  * conditions are met: Redistributions of source code must retain the
  30  * above copyright notice, this list of conditions and the following
  31  * disclaimer. Redistributions in binary form must reproduce the above
  32  * copyright notice, this list of conditions and the following disclaimer
  33  * in the documentation and/or other materials provided with the
  34  * distribution.
  35  *
  36  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
  37  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
  38  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
  39  * NO EVENT SHALL CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
  40  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
  41  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
  42  * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
  43  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
  44  * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
  45  * USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
  46  * DAMAGE.
  47  *
  48  * @category
  49  * @package     Services_JSON
  50  * @author      Michal Migurski <mike-json@teczno.com>
  51  * @author      Matt Knapp <mdknapp[at]gmail[dot]com>
  52  * @author      Brett Stimmerman <brettstimmerman[at]gmail[dot]com>
  53  * @copyright   2005 Michal Migurski
  54  * @license     http://www.opensource.org/licenses/bsd-license.php
  55  * @link        http://pear.php.net/pepr/pepr-proposal-show.php?id=198
  56  */
  57
  58 /**
  59  * Marker constant for Services_JSON::decode(), used to flag stack state
  60  */
  61 define('SERVICES_JSON_SLICE',   1);
  62
  63 /**
  64  * Marker constant for Services_JSON::decode(), used to flag stack state
  65  */
  66 define('SERVICES_JSON_IN_STR',  2);
  67
  68 /**
  69  * Marker constant for Services_JSON::decode(), used to flag stack state
  70  */
  71 define('SERVICES_JSON_IN_ARR',  4);
  72
  73 /**
  74  * Marker constant for Services_JSON::decode(), used to flag stack state
  75  */
  76 define('SERVICES_JSON_IN_OBJ',  8);
  77
  78 /**
  79  * Marker constant for Services_JSON::decode(), used to flag stack state
  80  */
  81 define('SERVICES_JSON_IN_CMT', 16);
  82
  83 /**
  84  * Behavior switch for Services_JSON::decode()
  85  */
  86 define('SERVICES_JSON_LOOSE_TYPE', 10);
  87
  88 /**
  89  * Behavior switch for Services_JSON::decode()
  90  */
  91 define('SERVICES_JSON_STRICT_TYPE', 11);
  92
  93 /**
  94  * Converts to and from JSON format.
  95  *
  96  * Brief example of use:
  97  *
  98  * <code>
  99  * // create a new instance of Services_JSON
 100  * $json = new Services_JSON();
 101  *
 102  * // convert a complexe value to JSON notation, and send it to the browser
 103  * $value = array('foo', 'bar', array(1, 2, 'baz'), array(3, array(4)));
 104  * $output = $json->encode($value);
 105  *
 106  * print($output);
 107  * // prints: ["foo","bar",[1,2,"baz"],[3,[4]]]
 108  *
 109  * // accept incoming POST data, assumed to be in JSON notation
 110  * $input = file_get_contents('php://input', 1000000);
 111  * $value = $json->decode($input);
 112  * </code>
 113  */
 114 class Services_JSON
 115 {
 116    /**
 117     * constructs a new JSON instance
 118     *
 119     * @param    int     $use    object behavior: when encoding or decoding,
 120     *                           be loose or strict about object/array usage
 121     *
 122     *                           possible values:
 123     *                           - SERVICES_JSON_STRICT_TYPE: strict typing, default.
 124     *                                                        "{...}" syntax creates objects in decode().
 125     *                           - SERVICES_JSON_LOOSE_TYPE:  loose typing.
 126     *                                                        "{...}" syntax creates associative arrays in decode().
 127     */
 128     function Services_JSON($use = SERVICES_JSON_STRICT_TYPE)
 129     {
 130         $this->use = $use;
 131     }
 132
 133    /**
 134     * convert a string from one UTF-16 char to one UTF-8 char
 135     *
 136     * Normally should be handled by mb_convert_encoding, but
 137     * provides a slower PHP-only method for installations
 138     * that lack the multibye string extension.
 139     *
 140     * @param    string  $utf16  UTF-16 character
 141     * @return   string  UTF-8 character
 142     * @access   private
 143     */
 144     function utf162utf8($utf16)
 145     {
 146         // oh please oh please oh please oh please oh please
 147         if(function_exists('mb_convert_encoding'))
 148             return mb_convert_encoding($utf16, 'UTF-8', 'UTF-16');
 149
 150         $bytes = (ord($utf16{0}) << 8) | ord($utf16{1});
 151
 152         switch(true) {
 153             case ((0x7F & $bytes) == $bytes):
 154                 // this case should never be reached, because we are in ASCII range
 155                 // see: http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
 156                 return chr(0x7F & $bytes);
 157
 158             case (0x07FF & $bytes) == $bytes:
 159                 // return a 2-byte UTF-8 character
 160                 // see: http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
 161                 return chr(0xC0 | (($bytes >> 6) & 0x1F))
 162                      . chr(0x80 | ($bytes & 0x3F));
 163
 164             case (0xFFFF & $bytes) == $bytes:
 165                 // return a 3-byte UTF-8 character
 166                 // see: http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
 167                 return chr(0xE0 | (($bytes >> 12) & 0x0F))
 168                      . chr(0x80 | (($bytes >> 6) & 0x3F))
 169                      . chr(0x80 | ($bytes & 0x3F));
 170         }
 171
 172         // ignoring UTF-32 for now, sorry
 173         return '';
 174     }
 175
 176    /**
 177     * convert a string from one UTF-8 char to one UTF-16 char
 178     *
 179     * Normally should be handled by mb_convert_encoding, but
 180     * provides a slower PHP-only method for installations
 181     * that lack the multibye string extension.
 182     *
 183     * @param    string  $utf8   UTF-8 character
 184     * @return   string  UTF-16 character
 185     * @access   private
 186     */
 187     function utf82utf16($utf8)
 188     {
 189         // oh please oh please oh please oh please oh please
 190         if(function_exists('mb_convert_encoding'))
 191             return mb_convert_encoding($utf8, 'UTF-16', 'UTF-8');
 192
 193         switch(strlen($utf8)) {
 194             case 1:
 195                 // this case should never be reached, because we are in ASCII range
 196                 // see: http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
 197                 return $utf8;
 198
 199             case 2:
 200                 // return a UTF-16 character from a 2-byte UTF-8 char
 201                 // see: http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
 202                 return chr(0x07 & (ord($utf8{0}) >> 2))
 203                      . chr((0xC0 & (ord($utf8{0}) << 6))
 204                          | (0x3F & ord($utf8{1})));
 205
 206             case 3:
 207                 // return a UTF-16 character from a 3-byte UTF-8 char
 208                 // see: http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
 209                 return chr((0xF0 & (ord($utf8{0}) << 4))
 210                          | (0x0F & (ord($utf8{1}) >> 2)))
 211                      . chr((0xC0 & (ord($utf8{1}) << 6))
 212                          | (0x7F & ord($utf8{2})));
 213         }
 214
 215         // ignoring UTF-32 for now, sorry
 216         return '';
 217     }
 218
 219    /**
 220     * encodes an arbitrary variable into JSON format
 221     *
 222     * @param    mixed   $var    any number, boolean, string, array, or object to be encoded.
 223     *                           see argument 1 to Services_JSON() above for array-parsing behavior.
 224     *                           if var is a strng, note that encode() always expects it
 225     *                           to be in ASCII or UTF-8 format!
 226     *
 227     * @return   string  JSON string representation of input var
 228     * @access   public
 229     */
 230     function encode($var)
 231     {
 232         switch (gettype($var)) {
 233             case 'boolean':
 234                 return $var ? 'true' : 'false';
 235
 236             case 'NULL':
 237                 return 'null';
 238
 239             case 'integer':
 240                 return (int) $var;
 241
 242             case 'double':
 243             case 'float':
 244                 return (float) $var;
 245
 246             case 'string':
 247                 // STRINGS ARE EXPECTED TO BE IN ASCII OR UTF-8 FORMAT
 248                 $ascii = '';
 249                 $strlen_var = strlen($var);
 250
 251                /*
 252                 * Iterate over every character in the string,
 253                 * escaping with a slash or encoding to UTF-8 where necessary
 254                 */
 255                 for ($c = 0; $c < $strlen_var; ++$c) {
 256
 257                     $ord_var_c = ord($var{$c});
 258
 259                     switch (true) {
 260                         case $ord_var_c == 0x08:
 261                             $ascii .= '\b';
 262                             break;
 263                         case $ord_var_c == 0x09:
 264                             $ascii .= '\t';
 265                             break;
 266                         case $ord_var_c == 0x0A:
 267                             $ascii .= '\n';
 268                             break;
 269                         case $ord_var_c == 0x0C:
 270                             $ascii .= '\f';
 271                             break;
 272                         case $ord_var_c == 0x0D:
 273                             $ascii .= '\r';
 274                             break;
 275
 276                         case $ord_var_c == 0x22:
 277                         case $ord_var_c == 0x2F:
 278                         case $ord_var_c == 0x5C:
 279                             // double quote, slash, slosh
 280                             $ascii .= '\\'.$var{$c};
 281                             break;
 282
 283                         case (($ord_var_c >= 0x20) && ($ord_var_c <= 0x7F)):
 284                             // characters U-00000000 - U-0000007F (same as ASCII)
 285                             $ascii .= $var{$c};
 286                             break;
 287
 288                         case (($ord_var_c & 0xE0) == 0xC0):
 289                             // characters U-00000080 - U-000007FF, mask 110XXXXX
 290                             // see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
 291                             $char = pack('C*', $ord_var_c, ord($var{$c + 1}));
 292                             $c += 1;
 293                             $utf16 = $this->utf82utf16($char);
 294                             $ascii .= sprintf('\u%04s', bin2hex($utf16));
 295                             break;
 296
 297                         case (($ord_var_c & 0xF0) == 0xE0):
 298                             // characters U-00000800 - U-0000FFFF, mask 1110XXXX
 299                             // see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
 300                             $char = pack('C*', $ord_var_c,
 301                                          ord($var{$c + 1}),
 302                                          ord($var{$c + 2}));
 303                             $c += 2;
 304                             $utf16 = $this->utf82utf16($char);
 305                             $ascii .= sprintf('\u%04s', bin2hex($utf16));
 306                             break;
 307
 308                         case (($ord_var_c & 0xF8) == 0xF0):
 309                             // characters U-00010000 - U-001FFFFF, mask 11110XXX
 310                             // see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
 311                             $char = pack('C*', $ord_var_c,
 312                                          ord($var{$c + 1}),
 313                                          ord($var{$c + 2}),
 314                                          ord($var{$c + 3}));
 315                             $c += 3;
 316                             $utf16 = $this->utf82utf16($char);
 317                             $ascii .= sprintf('\u%04s', bin2hex($utf16));
 318                             break;
 319
 320                         case (($ord_var_c & 0xFC) == 0xF8):
 321                             // characters U-00200000 - U-03FFFFFF, mask 111110XX
 322                             // see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
 323                             $char = pack('C*', $ord_var_c,
 324                                          ord($var{$c + 1}),
 325                                          ord($var{$c + 2}),
 326                                          ord($var{$c + 3}),
 327                                          ord($var{$c + 4}));
 328                             $c += 4;
 329                             $utf16 = $this->utf82utf16($char);
 330                             $ascii .= sprintf('\u%04s', bin2hex($utf16));
 331                             break;
 332
 333                         case (($ord_var_c & 0xFE) == 0xFC):
 334                             // characters U-04000000 - U-7FFFFFFF, mask 1111110X
 335                             // see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
 336                             $char = pack('C*', $ord_var_c,
 337                                          ord($var{$c + 1}),
 338                                          ord($var{$c + 2}),
 339                                          ord($var{$c + 3}),
 340                                          ord($var{$c + 4}),
 341                                          ord($var{$c + 5}));
 342                             $c += 5;
 343                             $utf16 = $this->utf82utf16($char);
 344                             $ascii .= sprintf('\u%04s', bin2hex($utf16));
 345                             break;
 346                     }
 347                 }
 348
 349                 return '"'.$ascii.'"';
 350
 351             case 'array':
 352                /*
 353                 * As per JSON spec if any array key is not an integer
 354                 * we must treat the the whole array as an object. We
 355                 * also try to catch a sparsely populated associative
 356                 * array with numeric keys here because some JS engines
 357                 * will create an array with empty indexes up to
 358                 * max_index which can cause memory issues and because
 359                 * the keys, which may be relevant, will be remapped
 360                 * otherwise.
 361                 *
 362                 * As per the ECMA and JSON specification an object may
 363                 * have any string as a property. Unfortunately due to
 364                 * a hole in the ECMA specification if the key is a
 365                 * ECMA reserved word or starts with a digit the
 366                 * parameter is only accessible using ECMAScript's
 367                 * bracket notation.
 368                 */
 369
 370                 // treat as a JSON object
 371                 if (is_array($var) && count($var) && (array_keys($var) !== range(0, sizeof($var) - 1))) {
 372                     return '{' .
 373                            join(',', array_map(array($this, 'name_value'),
 374                                                array_keys($var),
 375                                                array_values($var)))
 376                            . '}';
 377                 }
 378
 379                 // treat it like a regular array
 380                 return '[' . join(',', array_map(array($this, 'encode'), $var)) . ']';
 381
 382             case 'object':
 383                 $vars = get_object_vars($var);
 384                 return '{' .
 385                        join(',', array_map(array($this, 'name_value'),
 386                                            array_keys($vars),
 387                                            array_values($vars)))
 388                        . '}';
 389
 390             default:
 391                 return '';
 392         }
 393     }
 394
 395    /**
 396     * array-walking function for use in generating JSON-formatted name-value pairs
 397     *
 398     * @param    string  $name   name of key to use
 399     * @param    mixed   $value  reference to an array element to be encoded
 400     *
 401     * @return   string  JSON-formatted name-value pair, like '"name":value'
 402     * @access   private
 403     */
 404     function name_value($name, $value)
 405     {
 406         return $this->encode(strval($name)) . ':' . $this->encode($value);
 407     }
 408
 409    /**
 410     * reduce a string by removing leading and trailing comments and whitespace
 411     *
 412     * @param    $str    string      string value to strip of comments and whitespace
 413     *
 414     * @return   string  string value stripped of comments and whitespace
 415     * @access   private
 416     */
 417     function reduce_string($str)
 418     {
 419         $str = preg_replace(array(
 420
 421                 // eliminate single line comments in '// ...' form
 422                 '#^\s*//(.+)$#m',
 423
 424                 // eliminate multi-line comments in '/* ... */' form, at start of string
 425                 '#^\s*/\*(.+)\*/#Us',
 426
 427                 // eliminate multi-line comments in '/* ... */' form, at end of string
 428                 '#/\*(.+)\*/\s*$#Us'
 429
 430             ), '', $str);
 431
 432         // eliminate extraneous space
 433         return trim($str);
 434     }
 435
 436    /**
 437     * decodes a JSON string into appropriate variable
 438     *
 439     * @param    string  $str    JSON-formatted string
 440     *
 441     * @return   mixed   number, boolean, string, array, or object
 442     *                   corresponding to given JSON input string.
 443     *                   See argument 1 to Services_JSON() above for object-output behavior.
 444     *                   Note that decode() always returns strings
 445     *                   in ASCII or UTF-8 format!
 446     * @access   public
 447     */
 448     function decode($str)
 449     {
 450         $str = $this->reduce_string($str);
 451
 452         switch (strtolower($str)) {
 453             case 'true':
 454                 return true;
 455
 456             case 'false':
 457                 return false;
 458
 459             case 'null':
 460                 return null;
 461
 462             default:
 463                 if (is_numeric($str)) {
 464                     // Lookie-loo, it's a number
 465
 466                     // This would work on its own, but I'm trying to be
 467                     // good about returning integers where appropriate:
 468                     // return (float)$str;
 469
 470                     // Return float or int, as appropriate
 471                     return ((float)$str == (integer)$str)
 472                         ? (integer)$str
 473                         : (float)$str;
 474
 475                 } elseif (preg_match('/^("|\').*(\1)$/s', $str, $m) && $m[1] == $m[2]) {
 476                     // STRINGS RETURNED IN UTF-8 FORMAT
 477                     $delim = substr($str, 0, 1);
 478                     $chrs = substr($str, 1, -1);
 479                     $utf8 = '';
 480                     $strlen_chrs = strlen($chrs);
 481
 482                     for ($c = 0; $c < $strlen_chrs; ++$c) {
 483
 484                         $substr_chrs_c_2 = substr($chrs, $c, 2);
 485                         $ord_chrs_c = ord($chrs{$c});
 486
 487                         switch (true) {
 488                             case $substr_chrs_c_2 == '\b':
 489                                 $utf8 .= chr(0x08);
 490                                 ++$c;
 491                                 break;
 492                             case $substr_chrs_c_2 == '\t':
 493                                 $utf8 .= chr(0x09);
 494                                 ++$c;
 495                                 break;
 496                             case $substr_chrs_c_2 == '\n':
 497                                 $utf8 .= chr(0x0A);
 498                                 ++$c;
 499                                 break;
 500                             case $substr_chrs_c_2 == '\f':
 501                                 $utf8 .= chr(0x0C);
 502                                 ++$c;
 503                                 break;
 504                             case $substr_chrs_c_2 == '\r':
 505                                 $utf8 .= chr(0x0D);
 506                                 ++$c;
 507                                 break;
 508
 509                             case $substr_chrs_c_2 == '\\"':
 510                             case $substr_chrs_c_2 == '\\\'':
 511                             case $substr_chrs_c_2 == '\\\\':
 512                             case $substr_chrs_c_2 == '\\/':
 513                                 if (($delim == '"' && $substr_chrs_c_2 != '\\\'') ||
 514                                    ($delim == "'" && $substr_chrs_c_2 != '\\"')) {
 515                                     $utf8 .= $chrs{++$c};
 516                                 }
 517                                 break;
 518
 519                             case preg_match('/\\\u[0-9A-F]{4}/i', substr($chrs, $c, 6)):
 520                                 // single, escaped unicode character
 521                                 $utf16 = chr(hexdec(substr($chrs, ($c + 2), 2)))
 522                                        . chr(hexdec(substr($chrs, ($c + 4), 2)));
 523                                 $utf8 .= $this->utf162utf8($utf16);
 524                                 $c += 5;
 525                                 break;
 526
 527                             case ($ord_chrs_c >= 0x20) && ($ord_chrs_c <= 0x7F):
 528                                 $utf8 .= $chrs{$c};
 529                                 break;
 530
 531                             case ($ord_chrs_c & 0xE0) == 0xC0:
 532                                 // characters U-00000080 - U-000007FF, mask 110XXXXX
 533                                 //see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
 534                                 $utf8 .= substr($chrs, $c, 2);
 535                                 ++$c;
 536                                 break;
 537
 538                             case ($ord_chrs_c & 0xF0) == 0xE0:
 539                                 // characters U-00000800 - U-0000FFFF, mask 1110XXXX
 540                                 // see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
 541                                 $utf8 .= substr($chrs, $c, 3);
 542                                 $c += 2;
 543                                 break;
 544
 545                             case ($ord_chrs_c & 0xF8) == 0xF0:
 546                                 // characters U-00010000 - U-001FFFFF, mask 11110XXX
 547                                 // see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
 548                                 $utf8 .= substr($chrs, $c, 4);
 549                                 $c += 3;
 550                                 break;
 551
 552                             case ($ord_chrs_c & 0xFC) == 0xF8:
 553                                 // characters U-00200000 - U-03FFFFFF, mask 111110XX
 554                                 // see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
 555                                 $utf8 .= substr($chrs, $c, 5);
 556                                 $c += 4;
 557                                 break;
 558
 559                             case ($ord_chrs_c & 0xFE) == 0xFC:
 560                                 // characters U-04000000 - U-7FFFFFFF, mask 1111110X
 561                                 // see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
 562                                 $utf8 .= substr($chrs, $c, 6);
 563                                 $c += 5;
 564                                 break;
 565
 566                         }
 567
 568                     }
 569
 570                     return $utf8;
 571
 572                 } elseif (preg_match('/^\[.*\]$/s', $str) || preg_match('/^\{.*\}$/s', $str)) {
 573                     // array, or object notation
 574
 575                     if ($str{0} == '[') {
 576                         $stk = array(SERVICES_JSON_IN_ARR);
 577                         $arr = array();
 578                     } else {
 579                         if ($this->use == SERVICES_JSON_LOOSE_TYPE) {
 580                             $stk = array(SERVICES_JSON_IN_OBJ);
 581                             $obj = array();
 582                         } else {
 583                             $stk = array(SERVICES_JSON_IN_OBJ);
 584                             $obj = new stdClass();
 585                         }
 586                     }
 587
 588                     array_push($stk, array('what'  => SERVICES_JSON_SLICE,
 589                                            'where' => 0,
 590                                            'delim' => false));
 591
 592                     $chrs = substr($str, 1, -1);
 593                     $chrs = $this->reduce_string($chrs);
 594
 595                     if ($chrs == '') {
 596                         if (reset($stk) == SERVICES_JSON_IN_ARR) {
 597                             return $arr;
 598
 599                         } else {
 600                             return $obj;
 601
 602                         }
 603                     }
 604
 605                     //print("\nparsing {$chrs}\n");
 606
 607                     $strlen_chrs = strlen($chrs);
 608
 609                     for ($c = 0; $c <= $strlen_chrs; ++$c) {
 610
 611                         $top = end($stk);
 612                         $substr_chrs_c_2 = substr($chrs, $c, 2);
 613
 614                         if (($c == $strlen_chrs) || (($chrs{$c} == ',') && ($top['what'] == SERVICES_JSON_SLICE))) {
 615                             // found a comma that is not inside a string, array, etc.,
 616                             // OR we've reached the end of the character list
 617                             $slice = substr($chrs, $top['where'], ($c - $top['where']));
 618                             array_push($stk, array('what' => SERVICES_JSON_SLICE, 'where' => ($c + 1), 'delim' => false));
 619                             //print("Found split at {$c}: ".substr($chrs, $top['where'], (1 + $c - $top['where']))."\n");
 620
 621                             if (reset($stk) == SERVICES_JSON_IN_ARR) {
 622                                 // we are in an array, so just push an element onto the stack
 623                                 array_push($arr, $this->decode($slice));
 624
 625                             } elseif (reset($stk) == SERVICES_JSON_IN_OBJ) {
 626                                 // we are in an object, so figure
 627                                 // out the property name and set an
 628                                 // element in an associative array,
 629                                 // for now
 630                                 if (preg_match('/^\s*(["\'].*[^\\\]["\'])\s*:\s*(\S.*),?$/Uis', $slice, $parts)) {
 631                                     // "name":value pair
 632                                     $key = $this->decode($parts[1]);
 633                                     $val = $this->decode($parts[2]);
 634
 635                                     if ($this->use == SERVICES_JSON_LOOSE_TYPE) {
 636                                         $obj[$key] = $val;
 637                                     } else {
 638                                         $obj->$key = $val;
 639                                     }
 640                                 } elseif (preg_match('/^\s*(\w+)\s*:\s*(\S.*),?$/Uis', $slice, $parts)) {
 641                                     // name:value pair, where name is unquoted
 642                                     $key = $parts[1];
 643                                     $val = $this->decode($parts[2]);
 644
 645                                     if ($this->use == SERVICES_JSON_LOOSE_TYPE) {
 646                                         $obj[$key] = $val;
 647                                     } else {
 648                                         $obj->$key = $val;
 649                                     }
 650                                 }
 651
 652                             }
 653
 654                         } elseif ((($chrs{$c} == '"') || ($chrs{$c} == "'")) && ($top['what'] != SERVICES_JSON_IN_STR)) {
 655                             // found a quote, and we are not inside a string
 656                             array_push($stk, array('what' => SERVICES_JSON_IN_STR, 'where' => $c, 'delim' => $chrs{$c}));
 657                             //print("Found start of string at {$c}\n");
 658
 659                         } elseif (($chrs{$c} == $top['delim']) &&
 660                                  ($top['what'] == SERVICES_JSON_IN_STR) &&
 661                                  (($chrs{$c - 1} != '\\') ||
 662                                  ($chrs{$c - 1} == '\\' && $chrs{$c - 2} == '\\'))) {
 663                             // found a quote, we're in a string, and it's not escaped
 664                             array_pop($stk);
 665                             //print("Found end of string at {$c}: ".substr($chrs, $top['where'], (1 + 1 + $c - $top['where']))."\n");
 666
 667                         } elseif (($chrs{$c} == '[') &&
 668                                  in_array($top['what'], array(SERVICES_JSON_SLICE, SERVICES_JSON_IN_ARR, SERVICES_JSON_IN_OBJ))) {
 669                             // found a left-bracket, and we are in an array, object, or slice
 670                             array_push($stk, array('what' => SERVICES_JSON_IN_ARR, 'where' => $c, 'delim' => false));
 671                             //print("Found start of array at {$c}\n");
 672
 673                         } elseif (($chrs{$c} == ']') && ($top['what'] == SERVICES_JSON_IN_ARR)) {
 674                             // found a right-bracket, and we're in an array
 675                             array_pop($stk);
 676                             //print("Found end of array at {$c}: ".substr($chrs, $top['where'], (1 + $c - $top['where']))."\n");
 677
 678                         } elseif (($chrs{$c} == '{') &&
 679                                  in_array($top['what'], array(SERVICES_JSON_SLICE, SERVICES_JSON_IN_ARR, SERVICES_JSON_IN_OBJ))) {
 680                             // found a left-brace, and we are in an array, object, or slice
 681                             array_push($stk, array('what' => SERVICES_JSON_IN_OBJ, 'where' => $c, 'delim' => false));
 682                             //print("Found start of object at {$c}\n");
 683
 684                         } elseif (($chrs{$c} == '}') && ($top['what'] == SERVICES_JSON_IN_OBJ)) {
 685                             // found a right-brace, and we're in an object
 686                             array_pop($stk);
 687                             //print("Found end of object at {$c}: ".substr($chrs, $top['where'], (1 + $c - $top['where']))."\n");
 688
 689                         } elseif (($substr_chrs_c_2 == '/*') &&
 690                                  in_array($top['what'], array(SERVICES_JSON_SLICE, SERVICES_JSON_IN_ARR, SERVICES_JSON_IN_OBJ))) {
 691                             // found a comment start, and we are in an array, object, or slice
 692                             array_push($stk, array('what' => SERVICES_JSON_IN_CMT, 'where' => $c, 'delim' => false));
 693                             $c++;
 694                             //print("Found start of comment at {$c}\n");
 695
 696                         } elseif (($substr_chrs_c_2 == '*/') && ($top['what'] == SERVICES_JSON_IN_CMT)) {
 697                             // found a comment end, and we're in one now
 698                             array_pop($stk);
 699                             $c++;
 700
 701                             for ($i = $top['where']; $i <= $c; ++$i)
 702                                 $chrs = substr_replace($chrs, ' ', $i, 1);
 703
 704                             //print("Found end of comment at {$c}: ".substr($chrs, $top['where'], (1 + $c - $top['where']))."\n");
 705
 706                         }
 707
 708                     }
 709
 710                     if (reset($stk) == SERVICES_JSON_IN_ARR) {
 711                         return $arr;
 712
 713                     } elseif (reset($stk) == SERVICES_JSON_IN_OBJ) {
 714                         return $obj;
 715
 716                     }
 717
 718                 }
 719         }
 720     }
 721
 722 }
 723
 724 ?>