json_unnessacary.php (34014B)
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 * @version CVS: $Id: JSON.php,v 1.31 2006/06/28 05:54:17 migurski Exp $ 55 * @license http://www.opensource.org/licenses/bsd-license.php 56 * @link http://pear.php.net/pepr/pepr-proposal-show.php?id=198 57 */ 58 59 /** 60 * Marker constant for Services_JSON::decode(), used to flag stack state 61 */ 62 define('SERVICES_JSON_SLICE', 1); 63 64 /** 65 * Marker constant for Services_JSON::decode(), used to flag stack state 66 */ 67 define('SERVICES_JSON_IN_STR', 2); 68 69 /** 70 * Marker constant for Services_JSON::decode(), used to flag stack state 71 */ 72 define('SERVICES_JSON_IN_ARR', 3); 73 74 /** 75 * Marker constant for Services_JSON::decode(), used to flag stack state 76 */ 77 define('SERVICES_JSON_IN_OBJ', 4); 78 79 /** 80 * Marker constant for Services_JSON::decode(), used to flag stack state 81 */ 82 define('SERVICES_JSON_IN_CMT', 5); 83 84 /** 85 * Behavior switch for Services_JSON::decode() 86 */ 87 define('SERVICES_JSON_LOOSE_TYPE', 16); 88 89 /** 90 * Behavior switch for Services_JSON::decode() 91 */ 92 define('SERVICES_JSON_SUPPRESS_ERRORS', 32); 93 94 /** 95 * Converts to and from JSON format. 96 * 97 * Brief example of use: 98 * 99 * <code> 100 * // create a new instance of Services_JSON 101 * $json = new Services_JSON(); 102 * 103 * // convert a complexe value to JSON notation, and send it to the browser 104 * $value = array('foo', 'bar', array(1, 2, 'baz'), array(3, array(4))); 105 * $output = $json->encode($value); 106 * 107 * print($output); 108 * // prints: ["foo","bar",[1,2,"baz"],[3,[4]]] 109 * 110 * // accept incoming POST data, assumed to be in JSON notation 111 * $input = file_get_contents('php://input', 1000000); 112 * $value = $json->decode($input); 113 * </code> 114 */ 115 class Services_JSON 116 { 117 /** 118 * constructs a new JSON instance 119 * 120 * @param int $use object behavior flags; combine with boolean-OR 121 * 122 * possible values: 123 * - SERVICES_JSON_LOOSE_TYPE: loose typing. 124 * "{...}" syntax creates associative arrays 125 * instead of objects in decode(). 126 * - SERVICES_JSON_SUPPRESS_ERRORS: error suppression. 127 * Values which can't be encoded (e.g. resources) 128 * appear as NULL instead of throwing errors. 129 * By default, a deeply-nested resource will 130 * bubble up with an error, so all return values 131 * from encode() should be checked with isError() 132 */ 133 function Services_JSON($use = 0) 134 { 135 $this->use = $use; 136 } 137 138 /** 139 * convert a string from one UTF-16 char to one UTF-8 char 140 * 141 * Normally should be handled by mb_convert_encoding, but 142 * provides a slower PHP-only method for installations 143 * that lack the multibye string extension. 144 * 145 * @param string $utf16 UTF-16 character 146 * @return string UTF-8 character 147 * @access private 148 */ 149 function utf162utf8($utf16) 150 { 151 // oh please oh please oh please oh please oh please 152 if(function_exists('mb_convert_encoding')) { 153 return mb_convert_encoding($utf16, 'UTF-8', 'UTF-16'); 154 } 155 156 $bytes = (ord($utf16{0}) << 8) | ord($utf16{1}); 157 158 switch(true) { 159 case ((0x7F & $bytes) == $bytes): 160 // this case should never be reached, because we are in ASCII range 161 // see: http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8 162 return chr(0x7F & $bytes); 163 164 case (0x07FF & $bytes) == $bytes: 165 // return a 2-byte UTF-8 character 166 // see: http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8 167 return chr(0xC0 | (($bytes >> 6) & 0x1F)) 168 . chr(0x80 | ($bytes & 0x3F)); 169 170 case (0xFFFF & $bytes) == $bytes: 171 // return a 3-byte UTF-8 character 172 // see: http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8 173 return chr(0xE0 | (($bytes >> 12) & 0x0F)) 174 . chr(0x80 | (($bytes >> 6) & 0x3F)) 175 . chr(0x80 | ($bytes & 0x3F)); 176 } 177 178 // ignoring UTF-32 for now, sorry 179 return ''; 180 } 181 182 /** 183 * convert a string from one UTF-8 char to one UTF-16 char 184 * 185 * Normally should be handled by mb_convert_encoding, but 186 * provides a slower PHP-only method for installations 187 * that lack the multibye string extension. 188 * 189 * @param string $utf8 UTF-8 character 190 * @return string UTF-16 character 191 * @access private 192 */ 193 function utf82utf16($utf8) 194 { 195 // oh please oh please oh please oh please oh please 196 if(function_exists('mb_convert_encoding')) { 197 return mb_convert_encoding($utf8, 'UTF-16', 'UTF-8'); 198 } 199 200 switch(strlen($utf8)) { 201 case 1: 202 // this case should never be reached, because we are in ASCII range 203 // see: http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8 204 return $utf8; 205 206 case 2: 207 // return a UTF-16 character from a 2-byte UTF-8 char 208 // see: http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8 209 return chr(0x07 & (ord($utf8{0}) >> 2)) 210 . chr((0xC0 & (ord($utf8{0}) << 6)) 211 | (0x3F & ord($utf8{1}))); 212 213 case 3: 214 // return a UTF-16 character from a 3-byte UTF-8 char 215 // see: http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8 216 return chr((0xF0 & (ord($utf8{0}) << 4)) 217 | (0x0F & (ord($utf8{1}) >> 2))) 218 . chr((0xC0 & (ord($utf8{1}) << 6)) 219 | (0x7F & ord($utf8{2}))); 220 } 221 222 // ignoring UTF-32 for now, sorry 223 return ''; 224 } 225 226 /** 227 * encodes an arbitrary variable into JSON format 228 * 229 * @param mixed $var any number, boolean, string, array, or object to be encoded. 230 * see argument 1 to Services_JSON() above for array-parsing behavior. 231 * if var is a strng, note that encode() always expects it 232 * to be in ASCII or UTF-8 format! 233 * 234 * @return mixed JSON string representation of input var or an error if a problem occurs 235 * @access public 236 */ 237 function encode($var) 238 { 239 switch (gettype($var)) { 240 case 'boolean': 241 return $var ? 'true' : 'false'; 242 243 case 'NULL': 244 return 'null'; 245 246 case 'integer': 247 return (int) $var; 248 249 case 'double': 250 case 'float': 251 return (float) $var; 252 253 case 'string': 254 // STRINGS ARE EXPECTED TO BE IN ASCII OR UTF-8 FORMAT 255 $ascii = ''; 256 $strlen_var = strlen($var); 257 258 /* 259 * Iterate over every character in the string, 260 * escaping with a slash or encoding to UTF-8 where necessary 261 */ 262 for ($c = 0; $c < $strlen_var; ++$c) { 263 264 $ord_var_c = ord($var{$c}); 265 266 switch (true) { 267 case $ord_var_c == 0x08: 268 $ascii .= '\b'; 269 break; 270 case $ord_var_c == 0x09: 271 $ascii .= '\t'; 272 break; 273 case $ord_var_c == 0x0A: 274 $ascii .= '\n'; 275 break; 276 case $ord_var_c == 0x0C: 277 $ascii .= '\f'; 278 break; 279 case $ord_var_c == 0x0D: 280 $ascii .= '\r'; 281 break; 282 283 case $ord_var_c == 0x22: 284 case $ord_var_c == 0x2F: 285 case $ord_var_c == 0x5C: 286 // double quote, slash, slosh 287 $ascii .= '\\'.$var{$c}; 288 break; 289 290 case (($ord_var_c >= 0x20) && ($ord_var_c <= 0x7F)): 291 // characters U-00000000 - U-0000007F (same as ASCII) 292 $ascii .= $var{$c}; 293 break; 294 295 case (($ord_var_c & 0xE0) == 0xC0): 296 // characters U-00000080 - U-000007FF, mask 110XXXXX 297 // see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8 298 $char = pack('C*', $ord_var_c, ord($var{$c + 1})); 299 $c += 1; 300 $utf16 = $this->utf82utf16($char); 301 $ascii .= sprintf('\u%04s', bin2hex($utf16)); 302 break; 303 304 case (($ord_var_c & 0xF0) == 0xE0): 305 // characters U-00000800 - U-0000FFFF, mask 1110XXXX 306 // see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8 307 $char = pack('C*', $ord_var_c, 308 ord($var{$c + 1}), 309 ord($var{$c + 2})); 310 $c += 2; 311 $utf16 = $this->utf82utf16($char); 312 $ascii .= sprintf('\u%04s', bin2hex($utf16)); 313 break; 314 315 case (($ord_var_c & 0xF8) == 0xF0): 316 // characters U-00010000 - U-001FFFFF, mask 11110XXX 317 // see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8 318 $char = pack('C*', $ord_var_c, 319 ord($var{$c + 1}), 320 ord($var{$c + 2}), 321 ord($var{$c + 3})); 322 $c += 3; 323 $utf16 = $this->utf82utf16($char); 324 $ascii .= sprintf('\u%04s', bin2hex($utf16)); 325 break; 326 327 case (($ord_var_c & 0xFC) == 0xF8): 328 // characters U-00200000 - U-03FFFFFF, mask 111110XX 329 // see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8 330 $char = pack('C*', $ord_var_c, 331 ord($var{$c + 1}), 332 ord($var{$c + 2}), 333 ord($var{$c + 3}), 334 ord($var{$c + 4})); 335 $c += 4; 336 $utf16 = $this->utf82utf16($char); 337 $ascii .= sprintf('\u%04s', bin2hex($utf16)); 338 break; 339 340 case (($ord_var_c & 0xFE) == 0xFC): 341 // characters U-04000000 - U-7FFFFFFF, mask 1111110X 342 // see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8 343 $char = pack('C*', $ord_var_c, 344 ord($var{$c + 1}), 345 ord($var{$c + 2}), 346 ord($var{$c + 3}), 347 ord($var{$c + 4}), 348 ord($var{$c + 5})); 349 $c += 5; 350 $utf16 = $this->utf82utf16($char); 351 $ascii .= sprintf('\u%04s', bin2hex($utf16)); 352 break; 353 } 354 } 355 356 return '"'.$ascii.'"'; 357 358 case 'array': 359 /* 360 * As per JSON spec if any array key is not an integer 361 * we must treat the the whole array as an object. We 362 * also try to catch a sparsely populated associative 363 * array with numeric keys here because some JS engines 364 * will create an array with empty indexes up to 365 * max_index which can cause memory issues and because 366 * the keys, which may be relevant, will be remapped 367 * otherwise. 368 * 369 * As per the ECMA and JSON specification an object may 370 * have any string as a property. Unfortunately due to 371 * a hole in the ECMA specification if the key is a 372 * ECMA reserved word or starts with a digit the 373 * parameter is only accessible using ECMAScript's 374 * bracket notation. 375 */ 376 377 // treat as a JSON object 378 if (is_array($var) && count($var) && (array_keys($var) !== range(0, sizeof($var) - 1))) { 379 $properties = array_map(array($this, 'name_value'), 380 array_keys($var), 381 array_values($var)); 382 383 foreach($properties as $property) { 384 if(Services_JSON::isError($property)) { 385 return $property; 386 } 387 } 388 389 return '{' . join(',', $properties) . '}'; 390 } 391 392 // treat it like a regular array 393 $elements = array_map(array($this, 'encode'), $var); 394 395 foreach($elements as $element) { 396 if(Services_JSON::isError($element)) { 397 return $element; 398 } 399 } 400 401 return '[' . join(',', $elements) . ']'; 402 403 case 'object': 404 $vars = get_object_vars($var); 405 406 $properties = array_map(array($this, 'name_value'), 407 array_keys($vars), 408 array_values($vars)); 409 410 foreach($properties as $property) { 411 if(Services_JSON::isError($property)) { 412 return $property; 413 } 414 } 415 416 return '{' . join(',', $properties) . '}'; 417 418 default: 419 return ($this->use & SERVICES_JSON_SUPPRESS_ERRORS) 420 ? 'null' 421 : new Services_JSON_Error(gettype($var)." can not be encoded as JSON string"); 422 } 423 } 424 425 /** 426 * array-walking function for use in generating JSON-formatted name-value pairs 427 * 428 * @param string $name name of key to use 429 * @param mixed $value reference to an array element to be encoded 430 * 431 * @return string JSON-formatted name-value pair, like '"name":value' 432 * @access private 433 */ 434 function name_value($name, $value) 435 { 436 $encoded_value = $this->encode($value); 437 438 if(Services_JSON::isError($encoded_value)) { 439 return $encoded_value; 440 } 441 442 return $this->encode(strval($name)) . ':' . $encoded_value; 443 } 444 445 /** 446 * reduce a string by removing leading and trailing comments and whitespace 447 * 448 * @param $str string string value to strip of comments and whitespace 449 * 450 * @return string string value stripped of comments and whitespace 451 * @access private 452 */ 453 function reduce_string($str) 454 { 455 $str = preg_replace(array( 456 457 // eliminate single line comments in '// ...' form 458 '#^\s*//(.+)$#m', 459 460 // eliminate multi-line comments in '/* ... */' form, at start of string 461 '#^\s*/\*(.+)\*/#Us', 462 463 // eliminate multi-line comments in '/* ... */' form, at end of string 464 '#/\*(.+)\*/\s*$#Us' 465 466 ), '', $str); 467 468 // eliminate extraneous space 469 return trim($str); 470 } 471 472 /** 473 * decodes a JSON string into appropriate variable 474 * 475 * @param string $str JSON-formatted string 476 * 477 * @return mixed number, boolean, string, array, or object 478 * corresponding to given JSON input string. 479 * See argument 1 to Services_JSON() above for object-output behavior. 480 * Note that decode() always returns strings 481 * in ASCII or UTF-8 format! 482 * @access public 483 */ 484 function decode($str) 485 { 486 $str = $this->reduce_string($str); 487 488 switch (strtolower($str)) { 489 case 'true': 490 return true; 491 492 case 'false': 493 return false; 494 495 case 'null': 496 return null; 497 498 default: 499 $m = array(); 500 501 if (is_numeric($str)) { 502 // Lookie-loo, it's a number 503 504 // This would work on its own, but I'm trying to be 505 // good about returning integers where appropriate: 506 // return (float)$str; 507 508 // Return float or int, as appropriate 509 return ((float)$str == (integer)$str) 510 ? (integer)$str 511 : (float)$str; 512 513 } elseif (preg_match('/^("|\').*(\1)$/s', $str, $m) && $m[1] == $m[2]) { 514 // STRINGS RETURNED IN UTF-8 FORMAT 515 $delim = substr($str, 0, 1); 516 $chrs = substr($str, 1, -1); 517 $utf8 = ''; 518 $strlen_chrs = strlen($chrs); 519 520 for ($c = 0; $c < $strlen_chrs; ++$c) { 521 522 $substr_chrs_c_2 = substr($chrs, $c, 2); 523 $ord_chrs_c = ord($chrs{$c}); 524 525 switch (true) { 526 case $substr_chrs_c_2 == '\b': 527 $utf8 .= chr(0x08); 528 ++$c; 529 break; 530 case $substr_chrs_c_2 == '\t': 531 $utf8 .= chr(0x09); 532 ++$c; 533 break; 534 case $substr_chrs_c_2 == '\n': 535 $utf8 .= chr(0x0A); 536 ++$c; 537 break; 538 case $substr_chrs_c_2 == '\f': 539 $utf8 .= chr(0x0C); 540 ++$c; 541 break; 542 case $substr_chrs_c_2 == '\r': 543 $utf8 .= chr(0x0D); 544 ++$c; 545 break; 546 547 case $substr_chrs_c_2 == '\\"': 548 case $substr_chrs_c_2 == '\\\'': 549 case $substr_chrs_c_2 == '\\\\': 550 case $substr_chrs_c_2 == '\\/': 551 if (($delim == '"' && $substr_chrs_c_2 != '\\\'') || 552 ($delim == "'" && $substr_chrs_c_2 != '\\"')) { 553 $utf8 .= $chrs{++$c}; 554 } 555 break; 556 557 case preg_match('/\\\u[0-9A-F]{4}/i', substr($chrs, $c, 6)): 558 // single, escaped unicode character 559 $utf16 = chr(hexdec(substr($chrs, ($c + 2), 2))) 560 . chr(hexdec(substr($chrs, ($c + 4), 2))); 561 $utf8 .= $this->utf162utf8($utf16); 562 $c += 5; 563 break; 564 565 case ($ord_chrs_c >= 0x20) && ($ord_chrs_c <= 0x7F): 566 $utf8 .= $chrs{$c}; 567 break; 568 569 case ($ord_chrs_c & 0xE0) == 0xC0: 570 // characters U-00000080 - U-000007FF, mask 110XXXXX 571 //see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8 572 $utf8 .= substr($chrs, $c, 2); 573 ++$c; 574 break; 575 576 case ($ord_chrs_c & 0xF0) == 0xE0: 577 // characters U-00000800 - U-0000FFFF, mask 1110XXXX 578 // see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8 579 $utf8 .= substr($chrs, $c, 3); 580 $c += 2; 581 break; 582 583 case ($ord_chrs_c & 0xF8) == 0xF0: 584 // characters U-00010000 - U-001FFFFF, mask 11110XXX 585 // see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8 586 $utf8 .= substr($chrs, $c, 4); 587 $c += 3; 588 break; 589 590 case ($ord_chrs_c & 0xFC) == 0xF8: 591 // characters U-00200000 - U-03FFFFFF, mask 111110XX 592 // see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8 593 $utf8 .= substr($chrs, $c, 5); 594 $c += 4; 595 break; 596 597 case ($ord_chrs_c & 0xFE) == 0xFC: 598 // characters U-04000000 - U-7FFFFFFF, mask 1111110X 599 // see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8 600 $utf8 .= substr($chrs, $c, 6); 601 $c += 5; 602 break; 603 604 } 605 606 } 607 608 return $utf8; 609 610 } elseif (preg_match('/^\[.*\]$/s', $str) || preg_match('/^\{.*\}$/s', $str)) { 611 // array, or object notation 612 613 if ($str{0} == '[') { 614 $stk = array(SERVICES_JSON_IN_ARR); 615 $arr = array(); 616 } else { 617 if ($this->use & SERVICES_JSON_LOOSE_TYPE) { 618 $stk = array(SERVICES_JSON_IN_OBJ); 619 $obj = array(); 620 } else { 621 $stk = array(SERVICES_JSON_IN_OBJ); 622 $obj = new stdClass(); 623 } 624 } 625 626 array_push($stk, array('what' => SERVICES_JSON_SLICE, 627 'where' => 0, 628 'delim' => false)); 629 630 $chrs = substr($str, 1, -1); 631 $chrs = $this->reduce_string($chrs); 632 633 if ($chrs == '') { 634 if (reset($stk) == SERVICES_JSON_IN_ARR) { 635 return $arr; 636 637 } else { 638 return $obj; 639 640 } 641 } 642 643 //print("\nparsing {$chrs}\n"); 644 645 $strlen_chrs = strlen($chrs); 646 647 for ($c = 0; $c <= $strlen_chrs; ++$c) { 648 649 $top = end($stk); 650 $substr_chrs_c_2 = substr($chrs, $c, 2); 651 652 if (($c == $strlen_chrs) || (($chrs{$c} == ',') && ($top['what'] == SERVICES_JSON_SLICE))) { 653 // found a comma that is not inside a string, array, etc., 654 // OR we've reached the end of the character list 655 $slice = substr($chrs, $top['where'], ($c - $top['where'])); 656 array_push($stk, array('what' => SERVICES_JSON_SLICE, 'where' => ($c + 1), 'delim' => false)); 657 //print("Found split at {$c}: ".substr($chrs, $top['where'], (1 + $c - $top['where']))."\n"); 658 659 if (reset($stk) == SERVICES_JSON_IN_ARR) { 660 // we are in an array, so just push an element onto the stack 661 array_push($arr, $this->decode($slice)); 662 663 } elseif (reset($stk) == SERVICES_JSON_IN_OBJ) { 664 // we are in an object, so figure 665 // out the property name and set an 666 // element in an associative array, 667 // for now 668 $parts = array(); 669 670 if (preg_match('/^\s*(["\'].*[^\\\]["\'])\s*:\s*(\S.*),?$/Uis', $slice, $parts)) { 671 // "name":value pair 672 $key = $this->decode($parts[1]); 673 $val = $this->decode($parts[2]); 674 675 if ($this->use & SERVICES_JSON_LOOSE_TYPE) { 676 $obj[$key] = $val; 677 } else { 678 $obj->$key = $val; 679 } 680 } elseif (preg_match('/^\s*(\w+)\s*:\s*(\S.*),?$/Uis', $slice, $parts)) { 681 // name:value pair, where name is unquoted 682 $key = $parts[1]; 683 $val = $this->decode($parts[2]); 684 685 if ($this->use & SERVICES_JSON_LOOSE_TYPE) { 686 $obj[$key] = $val; 687 } else { 688 $obj->$key = $val; 689 } 690 } 691 692 } 693 694 } elseif ((($chrs{$c} == '"') || ($chrs{$c} == "'")) && ($top['what'] != SERVICES_JSON_IN_STR)) { 695 // found a quote, and we are not inside a string 696 array_push($stk, array('what' => SERVICES_JSON_IN_STR, 'where' => $c, 'delim' => $chrs{$c})); 697 //print("Found start of string at {$c}\n"); 698 699 } elseif (($chrs{$c} == $top['delim']) && 700 ($top['what'] == SERVICES_JSON_IN_STR) && 701 ((strlen(substr($chrs, 0, $c)) - strlen(rtrim(substr($chrs, 0, $c), '\\'))) % 2 != 1)) { 702 // found a quote, we're in a string, and it's not escaped 703 // we know that it's not escaped becase there is _not_ an 704 // odd number of backslashes at the end of the string so far 705 array_pop($stk); 706 //print("Found end of string at {$c}: ".substr($chrs, $top['where'], (1 + 1 + $c - $top['where']))."\n"); 707 708 } elseif (($chrs{$c} == '[') && 709 in_array($top['what'], array(SERVICES_JSON_SLICE, SERVICES_JSON_IN_ARR, SERVICES_JSON_IN_OBJ))) { 710 // found a left-bracket, and we are in an array, object, or slice 711 array_push($stk, array('what' => SERVICES_JSON_IN_ARR, 'where' => $c, 'delim' => false)); 712 //print("Found start of array at {$c}\n"); 713 714 } elseif (($chrs{$c} == ']') && ($top['what'] == SERVICES_JSON_IN_ARR)) { 715 // found a right-bracket, and we're in an array 716 array_pop($stk); 717 //print("Found end of array at {$c}: ".substr($chrs, $top['where'], (1 + $c - $top['where']))."\n"); 718 719 } elseif (($chrs{$c} == '{') && 720 in_array($top['what'], array(SERVICES_JSON_SLICE, SERVICES_JSON_IN_ARR, SERVICES_JSON_IN_OBJ))) { 721 // found a left-brace, and we are in an array, object, or slice 722 array_push($stk, array('what' => SERVICES_JSON_IN_OBJ, 'where' => $c, 'delim' => false)); 723 //print("Found start of object at {$c}\n"); 724 725 } elseif (($chrs{$c} == '}') && ($top['what'] == SERVICES_JSON_IN_OBJ)) { 726 // found a right-brace, and we're in an object 727 array_pop($stk); 728 //print("Found end of object at {$c}: ".substr($chrs, $top['where'], (1 + $c - $top['where']))."\n"); 729 730 } elseif (($substr_chrs_c_2 == '/*') && 731 in_array($top['what'], array(SERVICES_JSON_SLICE, SERVICES_JSON_IN_ARR, SERVICES_JSON_IN_OBJ))) { 732 // found a comment start, and we are in an array, object, or slice 733 array_push($stk, array('what' => SERVICES_JSON_IN_CMT, 'where' => $c, 'delim' => false)); 734 $c++; 735 //print("Found start of comment at {$c}\n"); 736 737 } elseif (($substr_chrs_c_2 == '*/') && ($top['what'] == SERVICES_JSON_IN_CMT)) { 738 // found a comment end, and we're in one now 739 array_pop($stk); 740 $c++; 741 742 for ($i = $top['where']; $i <= $c; ++$i) 743 $chrs = substr_replace($chrs, ' ', $i, 1); 744 745 //print("Found end of comment at {$c}: ".substr($chrs, $top['where'], (1 + $c - $top['where']))."\n"); 746 747 } 748 749 } 750 751 if (reset($stk) == SERVICES_JSON_IN_ARR) { 752 return $arr; 753 754 } elseif (reset($stk) == SERVICES_JSON_IN_OBJ) { 755 return $obj; 756 757 } 758 759 } 760 } 761 } 762 763 /** 764 * @todo Ultimately, this should just call PEAR::isError() 765 */ 766 function isError($data, $code = null) 767 { 768 if (class_exists('pear')) { 769 return PEAR::isError($data, $code); 770 } elseif (is_object($data) && (get_class($data) == 'services_json_error' || 771 is_subclass_of($data, 'services_json_error'))) { 772 return true; 773 } 774 775 return false; 776 } 777 } 778 779 if (class_exists('PEAR_Error')) { 780 781 class Services_JSON_Error extends PEAR_Error 782 { 783 function Services_JSON_Error($message = 'unknown error', $code = null, 784 $mode = null, $options = null, $userinfo = null) 785 { 786 parent::PEAR_Error($message, $code, $mode, $options, $userinfo); 787 } 788 } 789 790 } else { 791 792 /** 793 * @todo Ultimately, this class shall be descended from PEAR_Error 794 */ 795 class Services_JSON_Error 796 { 797 function Services_JSON_Error($message = 'unknown error', $code = null, 798 $mode = null, $options = null, $userinfo = null) 799 { 800 801 } 802 } 803 804 } 805 806 ?>