+ − <?php
+ − /* 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,v 1.31 2006/06/28 05:54:17 migurski Exp $
+ − * @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);
+ −
+ − /**
+ − * Converts to and from JSON format.
+ − *
+ − * @example <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);
+ − </code>
+ − *
+ − */
+ − class Services_JSON
+ − {
+ − /**
+ − * constructs a new JSON instance
+ − *
+ − * @param int $use object behavior flags; combine with boolean-OR
+ − *
+ − * possible values:
+ − * - SERVICES_JSON_LOOSE_TYPE: loose typing.
+ − * "{...}" syntax creates associative arrays
+ − * instead of objects in decode().
+ − * - SERVICES_JSON_SUPPRESS_ERRORS: error suppression.
+ − * Values which can't be encoded (e.g. resources)
+ − * appear as NULL instead of throwing errors.
+ − * By default, a deeply-nested resource will
+ − * bubble up with an error, so all return values
+ − * from encode() should be checked with isError()
+ − */
+ − function Services_JSON($use = 0)
+ − {
+ − $this->use = $use;
+ − }
+ −
+ − /**
+ − * 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(function_exists('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(function_exists('mb_convert_encoding')) {
+ − return mb_convert_encoding($utf8, 'UTF-16', 'UTF-8');
+ − }
+ −
+ − switch(strlen($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
+ − *
+ − * @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 = '';
+ − $strlen_var = strlen($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
+ − $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):
+ − // 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):
+ − // 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
+ − $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):
+ − // 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':
+ − $vars = get_object_vars($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
+ − $delim = substr($str, 0, 1);
+ − $chrs = substr($str, 1, -1);
+ − $utf8 = '';
+ − $strlen_chrs = strlen($chrs);
+ −
+ − for ($c = 0; $c < $strlen_chrs; ++$c) {
+ −
+ − $substr_chrs_c_2 = substr($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', substr($chrs, $c, 6)):
+ − // single, escaped unicode character
+ − $utf16 = chr(hexdec(substr($chrs, ($c + 2), 2)))
+ − . chr(hexdec(substr($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
+ − $utf8 .= substr($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
+ − $utf8 .= substr($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
+ − $utf8 .= substr($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
+ − $utf8 .= substr($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
+ − $utf8 .= substr($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));
+ −
+ − $chrs = substr($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");
+ −
+ − $strlen_chrs = strlen($chrs);
+ −
+ − for ($c = 0; $c <= $strlen_chrs; ++$c) {
+ −
+ − $top = end($stk);
+ − $substr_chrs_c_2 = substr($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
+ − $slice = substr($chrs, $top['where'], ($c - $top['where']));
+ − array_push($stk, array('what' => SERVICES_JSON_SLICE, 'where' => ($c + 1), 'delim' => false));
+ − //print("Found split at {$c}: ".substr($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*:\s*(\S.*),?$/Uis', $slice, $parts)) {
+ − // "name":value pair
+ − $key = $this->decode($parts[1]);
+ − $val = $this->decode($parts[2]);
+ −
+ − if ($this->use & SERVICES_JSON_LOOSE_TYPE) {
+ − $obj[$key] = $val;
+ − } else {
+ − $obj->$key = $val;
+ − }
+ − } elseif (preg_match('/^\s*(\w+)\s*:\s*(\S.*),?$/Uis', $slice, $parts)) {
+ − // name:value pair, where name is unquoted
+ − $key = $parts[1];
+ − $val = $this->decode($parts[2]);
+ −
+ − 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) &&
+ − ((strlen(substr($chrs, 0, $c)) - strlen(rtrim(substr($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 {$c}: ".substr($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 {$c}: ".substr($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 {$c}: ".substr($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}: ".substr($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;
+ − }
+ − }
+ −
+ − 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)
+ − {
+ −
+ − }
+ − }
+ −
+ − }
+ −
+ − ?>