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6657531f
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Andreas Kohlbecker
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<?php
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/**
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* @file
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* Converts to and from JSON format.
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*
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* JSON (JavaScript Object Notation) is a lightweight data-interchange
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* format. It is easy for humans to read and write. It is easy for machines
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* to parse and generate. It is based on a subset of the JavaScript
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* Programming Language, Standard ECMA-262 3rd Edition - December 1999.
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* This feature can also be found in Python. JSON is a text format that is
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* completely language independent but uses conventions that are familiar
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* to programmers of the C-family of languages, including C, C++, C#, Java,
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* JavaScript, Perl, TCL, and many others. These properties make JSON an
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* ideal data-interchange language.
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*
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* This package provides a simple encoder and decoder for JSON notation. It
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* is intended for use with client-side Javascript applications that make
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* use of HTTPRequest to perform server communication functions - data can
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* be encoded into JSON notation for use in a client-side javascript, or
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* decoded from incoming Javascript requests. JSON format is native to
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* Javascript, and can be directly eval()'ed with no further parsing
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* overhead
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*
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* All strings should be in ASCII or UTF-8 format!
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*
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* LICENSE: Redistribution and use in source and binary forms, with or
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* without modification, are permitted provided that the following
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* conditions are met: Redistributions of source code must retain the
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* above copyright notice, this list of conditions and the following
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* disclaimer. Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following disclaimer
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* in the documentation and/or other materials provided with the
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* distribution.
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*
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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
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* NO EVENT SHALL CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
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* TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
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* USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
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* DAMAGE.
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*
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* @category
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* @package Services_JSON
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* @author Michal Migurski <mike-json@teczno.com>
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* @author Matt Knapp <mdknapp[at]gmail[dot]com>
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* @author Brett Stimmerman <brettstimmerman[at]gmail[dot]com>
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* @copyright 2005 Michal Migurski
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* @version CVS: $Id: JSON.php,v 1.30 2006/03/08 16:10:20 migurski Exp $
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* @license http://www.opensource.org/licenses/bsd-license.php
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* @link http://pear.php.net/pepr/pepr-proposal-show.php?id=198
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*/
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/**
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* Marker constant for Services_JSON::decode(), used to flag stack state.
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*/
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define('SERVICES_JSON_SLICE', 1);
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/**
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* Marker constant for Services_JSON::decode(), used to flag stack state.
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*/
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define('SERVICES_JSON_IN_STR', 2);
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/**
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* Marker constant for Services_JSON::decode(), used to flag stack state.
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*/
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define('SERVICES_JSON_IN_ARR', 3);
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/**
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* Marker constant for Services_JSON::decode(), used to flag stack state.
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*/
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define('SERVICES_JSON_IN_OBJ', 4);
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/**
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* Marker constant for Services_JSON::decode(), used to flag stack state.
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*/
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define('SERVICES_JSON_IN_CMT', 5);
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/**
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* Behavior switch for Services_JSON::decode().
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*/
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define('SERVICES_JSON_LOOSE_TYPE', 16);
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/**
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* Behavior switch for Services_JSON::decode().
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*/
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define('SERVICES_JSON_SUPPRESS_ERRORS', 32);
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/**
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* Converts to and from JSON format.
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*
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* Brief example of use:
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*
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* <code>
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* // create a new instance of Services_JSON
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* $json = new Services_JSON();
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*
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* // convert a complexe value to JSON notation, and send it to the browser
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* $value = array('foo', 'bar', array(1, 2, 'baz'), array(3, array(4)));
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* $output = $json->encode($value);
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*
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* print($output);
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* // prints: ["foo","bar",[1,2,"baz"],[3,[4]]]
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*
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* // accept incoming POST data, assumed to be in JSON notation
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* $input = file_get_contents('php://input', 1000000);
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* $value = $json->decode($input);
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* <endcode>
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*/
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class Services_JSON {
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/**
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* Constructs a new JSON instance.
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*
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* @param int $use
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* object behavior flags; combine with boolean-OR.
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* possible values:
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* - SERVICES_JSON_LOOSE_TYPE: loose typing.
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* "{...}" syntax creates associative arrays
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* instead of objects in decode().
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* - SERVICES_JSON_SUPPRESS_ERRORS: error suppression.
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* Values which can't be encoded (e.g. resources)
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* appear as NULL instead of throwing errors.
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* By default, a deeply-nested resource will bubble up with an error,
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* so all return values from encode() should be checked with isError().
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*/
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function __construct($use = 0) {
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$this->use = $use;
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}
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/**
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* Convert a string from one UTF-16 char to one UTF-8 char.
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*
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* Normally should be handled by mb_convert_encoding, but
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* provides a slower PHP-only method for installations
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* that lack the multibye string extension.
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*
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* @access private
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*
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* @param string $utf16
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* UTF-16 character.
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*
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* @return string
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* UTF-8 character.
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*/
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function utf162utf8($utf16) {
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// Oh please oh please oh please oh please oh please.
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if (function_exists('mb_convert_encoding')) {
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return mb_convert_encoding($utf16, 'UTF-8', 'UTF-16');
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}
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$bytes = (ord($utf16{0}) << 8) | ord($utf16{1});
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switch (TRUE) {
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case ((0x7F & $bytes) == $bytes):
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// This case should never be reached, because we are in ASCII range.
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// @see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
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return chr(0x7F & $bytes);
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case (0x07FF & $bytes) == $bytes:
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// Return a 2-byte UTF-8 character.
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// @see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
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return chr(0xC0 | (($bytes >> 6) & 0x1F))
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. chr(0x80 | ($bytes & 0x3F));
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case (0xFFFF & $bytes) == $bytes:
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// Return a 3-byte UTF-8 character.
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// @see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
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return chr(0xE0 | (($bytes >> 12) & 0x0F))
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. chr(0x80 | (($bytes >> 6) & 0x3F))
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. chr(0x80 | ($bytes & 0x3F));
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}
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// Ignoring UTF-32 for now, sorry.
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return '';
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}
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/**
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* convert a string from one UTF-8 char to one UTF-16 char.
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*
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* Normally should be handled by mb_convert_encoding, but
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* provides a slower PHP-only method for installations
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* that lack the multibye string extension.
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*
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* @access private
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*
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* @param string $utf8
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* UTF-8 character.
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*
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* @return string
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* UTF-16 character.
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*/
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function utf82utf16($utf8) {
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// Oh please oh please oh please oh please oh please.
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if (function_exists('mb_convert_encoding')) {
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return mb_convert_encoding($utf8, 'UTF-16', 'UTF-8');
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}
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switch (strlen($utf8)) {
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case 1:
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// This case should never be reached, because we are in ASCII range.
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// @see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
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return $utf8;
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case 2:
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// Return a UTF-16 character from a 2-byte UTF-8 char.
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// @see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
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return chr(0x07 & (ord($utf8{0}) >> 2))
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. chr((0xC0 & (ord($utf8{0}) << 6))
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| (0x3F & ord($utf8{1})));
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case 3:
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// Return a UTF-16 character from a 3-byte UTF-8 char.
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// @see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
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return chr((0xF0 & (ord($utf8{0}) << 4))
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| (0x0F & (ord($utf8{1}) >> 2)))
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. chr((0xC0 & (ord($utf8{1}) << 6))
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| (0x7F & ord($utf8{2})));
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}
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// Ignoring UTF-32 for now, sorry.
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return '';
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}
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| 228 |
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/**
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* Encodes an arbitrary variable into JSON format.
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*
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* @access public
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| 232 |
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*
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* @param mixed $var
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* Any number, boolean, string, array, or object to be encoded.
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* See argument 1 to Services_JSON() above for array-parsing behavior.
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| 236 |
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* If var is a string, note that encode() always expects it
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* to be in ASCII or UTF-8 format!
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| 238 |
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*
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| 239 |
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* @return mixed
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| 240 |
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* JSON string representation of input var or an error if a problem occurs.
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*/
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| 242 |
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function encode($var) {
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| 243 |
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switch (gettype($var)) {
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case 'boolean':
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return $var ? 'TRUE' : 'FALSE';
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| 246 |
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| 247 |
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case 'NULL':
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| 248 |
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return 'NULL';
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| 250 |
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case 'integer':
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| 251 |
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return (int) $var;
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| 252 |
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| 253 |
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case 'double':
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| 254 |
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case 'float':
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| 255 |
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return (float) $var;
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| 256 |
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| 257 |
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case 'string':
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| 258 |
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// STRINGS ARE EXPECTED TO BE IN ASCII OR UTF-8 FORMAT.
|
| 259 |
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$ascii = '';
|
| 260 |
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$strlen_var = strlen($var);
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| 261 |
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|
| 262 |
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/*
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| 263 |
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* Iterate over every character in the string,
|
| 264 |
|
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* escaping with a slash or encoding to UTF-8 where necessary.
|
| 265 |
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*/
|
| 266 |
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for ($c = 0; $c < $strlen_var; ++$c) {
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| 267 |
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|
| 268 |
|
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$ord_var_c = ord($var{$c});
|
| 269 |
|
|
|
| 270 |
|
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switch (TRUE) {
|
| 271 |
|
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case $ord_var_c == 0x08:
|
| 272 |
|
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$ascii .= '\b';
|
| 273 |
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break;
|
| 274 |
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|
|
| 275 |
|
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case $ord_var_c == 0x09:
|
| 276 |
|
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$ascii .= '\t';
|
| 277 |
|
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break;
|
| 278 |
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|
| 279 |
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case $ord_var_c == 0x0A:
|
| 280 |
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$ascii .= '\n';
|
| 281 |
|
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break;
|
| 282 |
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|
|
| 283 |
|
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case $ord_var_c == 0x0C:
|
| 284 |
|
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$ascii .= '\f';
|
| 285 |
|
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break;
|
| 286 |
|
|
|
| 287 |
|
|
case $ord_var_c == 0x0D:
|
| 288 |
|
|
$ascii .= '\r';
|
| 289 |
|
|
break;
|
| 290 |
|
|
|
| 291 |
|
|
case $ord_var_c == 0x22:
|
| 292 |
|
|
case $ord_var_c == 0x2F:
|
| 293 |
|
|
case $ord_var_c == 0x5C:
|
| 294 |
|
|
// Double quote, slash, slosh.
|
| 295 |
|
|
$ascii .= '\\' . $var{$c};
|
| 296 |
|
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break;
|
| 297 |
|
|
|
| 298 |
|
|
case (($ord_var_c >= 0x20) && ($ord_var_c <= 0x7F)):
|
| 299 |
|
|
// Characters U-00000000 - U-0000007F (same as ASCII).
|
| 300 |
|
|
$ascii .= $var{$c};
|
| 301 |
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break;
|
| 302 |
|
|
|
| 303 |
|
|
case (($ord_var_c & 0xE0) == 0xC0):
|
| 304 |
|
|
// Characters U-00000080 - U-000007FF, mask 110XXXXX.
|
| 305 |
|
|
// @see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
|
| 306 |
|
|
$char = pack('C*', $ord_var_c, ord($var{$c + 1}));
|
| 307 |
|
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$c += 1;
|
| 308 |
|
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$utf16 = $this->utf82utf16($char);
|
| 309 |
|
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$ascii .= sprintf('\u%04s', bin2hex($utf16));
|
| 310 |
|
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break;
|
| 311 |
|
|
|
| 312 |
|
|
case (($ord_var_c & 0xF0) == 0xE0):
|
| 313 |
|
|
// Characters U-00000800 - U-0000FFFF, mask 1110XXXX.
|
| 314 |
|
|
// @see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
|
| 315 |
|
|
$char = pack('C*', $ord_var_c,
|
| 316 |
|
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ord($var{$c + 1}),
|
| 317 |
|
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ord($var{$c + 2}));
|
| 318 |
|
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$c += 2;
|
| 319 |
|
|
$utf16 = $this->utf82utf16($char);
|
| 320 |
|
|
$ascii .= sprintf('\u%04s', bin2hex($utf16));
|
| 321 |
|
|
break;
|
| 322 |
|
|
|
| 323 |
|
|
case (($ord_var_c & 0xF8) == 0xF0):
|
| 324 |
|
|
// Characters U-00010000 - U-001FFFFF, mask 11110XXX.
|
| 325 |
|
|
// @see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
|
| 326 |
|
|
$char = pack('C*', $ord_var_c,
|
| 327 |
|
|
ord($var{$c + 1}),
|
| 328 |
|
|
ord($var{$c + 2}),
|
| 329 |
|
|
ord($var{$c + 3}));
|
| 330 |
|
|
$c += 3;
|
| 331 |
|
|
$utf16 = $this->utf82utf16($char);
|
| 332 |
|
|
$ascii .= sprintf('\u%04s', bin2hex($utf16));
|
| 333 |
|
|
break;
|
| 334 |
|
|
|
| 335 |
|
|
case (($ord_var_c & 0xFC) == 0xF8):
|
| 336 |
|
|
// Characters U-00200000 - U-03FFFFFF, mask 111110XX.
|
| 337 |
|
|
// @see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
|
| 338 |
|
|
$char = pack('C*', $ord_var_c,
|
| 339 |
|
|
ord($var{$c + 1}),
|
| 340 |
|
|
ord($var{$c + 2}),
|
| 341 |
|
|
ord($var{$c + 3}),
|
| 342 |
|
|
ord($var{$c + 4}));
|
| 343 |
|
|
$c += 4;
|
| 344 |
|
|
$utf16 = $this->utf82utf16($char);
|
| 345 |
|
|
$ascii .= sprintf('\u%04s', bin2hex($utf16));
|
| 346 |
|
|
break;
|
| 347 |
|
|
|
| 348 |
|
|
case (($ord_var_c & 0xFE) == 0xFC):
|
| 349 |
|
|
// Characters U-04000000 - U-7FFFFFFF, mask 1111110X.
|
| 350 |
|
|
// @see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
|
| 351 |
|
|
$char = pack('C*', $ord_var_c,
|
| 352 |
|
|
ord($var{$c + 1}),
|
| 353 |
|
|
ord($var{$c + 2}),
|
| 354 |
|
|
ord($var{$c + 3}),
|
| 355 |
|
|
ord($var{$c + 4}),
|
| 356 |
|
|
ord($var{$c + 5}));
|
| 357 |
|
|
$c += 5;
|
| 358 |
|
|
$utf16 = $this->utf82utf16($char);
|
| 359 |
|
|
$ascii .= sprintf('\u%04s', bin2hex($utf16));
|
| 360 |
|
|
break;
|
| 361 |
|
|
}
|
| 362 |
|
|
}
|
| 363 |
|
|
|
| 364 |
|
|
return '"' . $ascii . '"';
|
| 365 |
|
|
|
| 366 |
|
|
case 'array':
|
| 367 |
|
|
/*
|
| 368 |
|
|
As per JSON spec if any array key is not an integer
|
| 369 |
|
|
we must treat the the whole array as an object. We
|
| 370 |
|
|
also try to catch a sparsely populated associative
|
| 371 |
|
|
array with numeric keys here because some JS engines
|
| 372 |
|
|
will create an array with empty indexes up to
|
| 373 |
|
|
max_index which can cause memory issues and because
|
| 374 |
|
|
the keys, which may be relevant, will be remapped
|
| 375 |
|
|
otherwise.
|
| 376 |
|
|
|
| 377 |
|
|
As per the ECMA and JSON specification an object may
|
| 378 |
|
|
have any string as a property. Unfortunately due to
|
| 379 |
|
|
a hole in the ECMA specification if the key is a
|
| 380 |
|
|
ECMA reserved word or starts with a digit the
|
| 381 |
|
|
parameter is only accessible using ECMAScript's
|
| 382 |
|
|
bracket notation.
|
| 383 |
|
|
*/
|
| 384 |
|
|
|
| 385 |
|
|
// Treat as a JSON object.
|
| 386 |
|
|
if (is_array($var) && count($var) && (array_keys($var) !== range(0, sizeof($var) - 1))) {
|
| 387 |
|
|
$properties = array_map(array($this, 'name_value'),
|
| 388 |
|
|
array_keys($var),
|
| 389 |
|
|
array_values($var));
|
| 390 |
|
|
|
| 391 |
|
|
foreach ($properties as $property) {
|
| 392 |
|
|
if (Services_JSON::isError($property)) {
|
| 393 |
|
|
return $property;
|
| 394 |
|
|
}
|
| 395 |
|
|
}
|
| 396 |
|
|
|
| 397 |
|
|
return '{' . join(',', $properties) . '}';
|
| 398 |
|
|
}
|
| 399 |
|
|
|
| 400 |
|
|
// Treat it like a regular array.
|
| 401 |
|
|
$elements = array_map(array($this, 'encode'), $var);
|
| 402 |
|
|
|
| 403 |
|
|
foreach ($elements as $element) {
|
| 404 |
|
|
if (Services_JSON::isError($element)) {
|
| 405 |
|
|
return $element;
|
| 406 |
|
|
}
|
| 407 |
|
|
}
|
| 408 |
|
|
|
| 409 |
|
|
return '[' . join(',', $elements) . ']';
|
| 410 |
|
|
|
| 411 |
|
|
case 'object':
|
| 412 |
|
|
$vars = get_object_vars($var);
|
| 413 |
|
|
|
| 414 |
|
|
$properties = array_map(array($this, 'name_value'),
|
| 415 |
|
|
array_keys($vars),
|
| 416 |
|
|
array_values($vars));
|
| 417 |
|
|
|
| 418 |
|
|
foreach ($properties as $property) {
|
| 419 |
|
|
if (Services_JSON::isError($property)) {
|
| 420 |
|
|
return $property;
|
| 421 |
|
|
}
|
| 422 |
|
|
}
|
| 423 |
|
|
|
| 424 |
|
|
return '{' . join(',', $properties) . '}';
|
| 425 |
|
|
|
| 426 |
|
|
default:
|
| 427 |
|
|
return ($this->use & SERVICES_JSON_SUPPRESS_ERRORS)
|
| 428 |
|
|
? 'null'
|
| 429 |
|
|
: new Services_JSON_Error(gettype($var) . " can not be encoded as JSON string");
|
| 430 |
|
|
}
|
| 431 |
|
|
}
|
| 432 |
|
|
|
| 433 |
|
|
/**
|
| 434 |
|
|
* Array-walking function used in generating JSON-formatted name-value pairs.
|
| 435 |
|
|
*
|
| 436 |
|
|
* @access private
|
| 437 |
|
|
*
|
| 438 |
|
|
* @param string $name
|
| 439 |
|
|
* Name of key to use.
|
| 440 |
|
|
* @param mixed $value
|
| 441 |
|
|
* Reference to an array element to be encoded.
|
| 442 |
|
|
*
|
| 443 |
|
|
* @return string
|
| 444 |
|
|
* JSON-formatted name-value pair, like '"name":value'.
|
| 445 |
|
|
*/
|
| 446 |
|
|
function name_value($name, $value) {
|
| 447 |
|
|
$encoded_value = $this->encode($value);
|
| 448 |
|
|
|
| 449 |
|
|
if (Services_JSON::isError($encoded_value)) {
|
| 450 |
|
|
return $encoded_value;
|
| 451 |
|
|
}
|
| 452 |
|
|
|
| 453 |
|
|
return $this->encode(strval($name)) . ':' . $encoded_value;
|
| 454 |
|
|
}
|
| 455 |
|
|
|
| 456 |
|
|
/**
|
| 457 |
|
|
* Reduce a string by removing leading and trailing comments and whitespace.
|
| 458 |
|
|
*
|
| 459 |
|
|
* @access private
|
| 460 |
|
|
*
|
| 461 |
|
|
* @param string $str
|
| 462 |
|
|
* String value to strip of comments and whitespace.
|
| 463 |
|
|
*
|
| 464 |
|
|
* @return string
|
| 465 |
|
|
* String value stripped of comments and whitespace.array.
|
| 466 |
|
|
*/
|
| 467 |
|
|
function reduce_string($str) {
|
| 468 |
|
|
$str = preg_replace(array(
|
| 469 |
|
|
// Eliminate single line comments in '// ...' form.
|
| 470 |
|
|
'#^\s*//(.+)$#m',
|
| 471 |
|
|
// Eliminate multi-line comments in '/* ... */' form, at start of string
|
| 472 |
|
|
'#^\s*/\*(.+)\*/#Us',
|
| 473 |
|
|
// Eliminate multi-line comments in '/* ... */' form, at end of string.
|
| 474 |
|
|
'#/\*(.+)\*/\s*$#Us',
|
| 475 |
|
|
), '', $str);
|
| 476 |
|
|
|
| 477 |
|
|
// Eliminate extraneous space.
|
| 478 |
|
|
return trim($str);
|
| 479 |
|
|
}
|
| 480 |
|
|
|
| 481 |
|
|
/**
|
| 482 |
|
|
* Decodes a JSON string into an appropriate variable.
|
| 483 |
|
|
*
|
| 484 |
|
|
* See argument 1 to Services_JSON() for object-output behavior.
|
| 485 |
|
|
* Note that decode() always returns strings in ASCII or UTF-8 format!
|
| 486 |
|
|
*
|
| 487 |
|
|
* @access public
|
| 488 |
|
|
*
|
| 489 |
|
|
* @param string $str
|
| 490 |
|
|
* JSON-formatted string
|
| 491 |
|
|
*
|
| 492 |
|
|
* @return mixed
|
| 493 |
|
|
* Number, boolean, string, array, or object corresponding to given
|
| 494 |
|
|
* JSON input string.
|
| 495 |
|
|
*/
|
| 496 |
|
|
function decode($str) {
|
| 497 |
|
|
$str = $this->reduce_string($str);
|
| 498 |
|
|
|
| 499 |
|
|
switch (strtolower($str)) {
|
| 500 |
|
|
case 'true':
|
| 501 |
|
|
return TRUE;
|
| 502 |
|
|
|
| 503 |
|
|
case 'false':
|
| 504 |
|
|
return FALSE;
|
| 505 |
|
|
|
| 506 |
|
|
case 'null':
|
| 507 |
|
|
return NULL;
|
| 508 |
|
|
|
| 509 |
|
|
default:
|
| 510 |
|
|
$m = array();
|
| 511 |
|
|
|
| 512 |
|
|
if (is_numeric($str)) {
|
| 513 |
|
|
// Lookie-loo, it's a number.
|
| 514 |
|
|
// This would work on its own, but I'm trying to be
|
| 515 |
|
|
// good about returning integers where appropriate:
|
| 516 |
|
|
// return (float)$str;
|
| 517 |
|
|
// Return float or int, as appropriate.
|
| 518 |
|
|
return ((float) $str == (integer) $str)
|
| 519 |
|
|
? (integer) $str
|
| 520 |
|
|
: (float) $str;
|
| 521 |
|
|
|
| 522 |
|
|
}
|
| 523 |
|
|
elseif (preg_match('/^("|\').*(\1)$/s', $str, $m) && $m[1] == $m[2]) {
|
| 524 |
|
|
// STRINGS RETURNED IN UTF-8 FORMAT.
|
| 525 |
|
|
$delim = substr($str, 0, 1);
|
| 526 |
|
|
$chrs = substr($str, 1, -1);
|
| 527 |
|
|
$utf8 = '';
|
| 528 |
|
|
$strlen_chrs = strlen($chrs);
|
| 529 |
|
|
|
| 530 |
|
|
for ($c = 0; $c < $strlen_chrs; ++$c) {
|
| 531 |
|
|
|
| 532 |
|
|
$substr_chrs_c_2 = substr($chrs, $c, 2);
|
| 533 |
|
|
$ord_chrs_c = ord($chrs{$c});
|
| 534 |
|
|
|
| 535 |
|
|
switch (TRUE) {
|
| 536 |
|
|
case $substr_chrs_c_2 == '\b':
|
| 537 |
|
|
$utf8 .= chr(0x08);
|
| 538 |
|
|
++$c;
|
| 539 |
|
|
break;
|
| 540 |
|
|
|
| 541 |
|
|
case $substr_chrs_c_2 == '\t':
|
| 542 |
|
|
$utf8 .= chr(0x09);
|
| 543 |
|
|
++$c;
|
| 544 |
|
|
break;
|
| 545 |
|
|
|
| 546 |
|
|
case $substr_chrs_c_2 == '\n':
|
| 547 |
|
|
$utf8 .= chr(0x0A);
|
| 548 |
|
|
++$c;
|
| 549 |
|
|
break;
|
| 550 |
|
|
|
| 551 |
|
|
case $substr_chrs_c_2 == '\f':
|
| 552 |
|
|
$utf8 .= chr(0x0C);
|
| 553 |
|
|
++$c;
|
| 554 |
|
|
break;
|
| 555 |
|
|
|
| 556 |
|
|
case $substr_chrs_c_2 == '\r':
|
| 557 |
|
|
$utf8 .= chr(0x0D);
|
| 558 |
|
|
++$c;
|
| 559 |
|
|
break;
|
| 560 |
|
|
|
| 561 |
|
|
case $substr_chrs_c_2 == '\\"':
|
| 562 |
|
|
case $substr_chrs_c_2 == '\\\'':
|
| 563 |
|
|
case $substr_chrs_c_2 == '\\\\':
|
| 564 |
|
|
case $substr_chrs_c_2 == '\\/':
|
| 565 |
|
|
if (($delim == '"' && $substr_chrs_c_2 != '\\\'') ||
|
| 566 |
|
|
($delim == "'" && $substr_chrs_c_2 != '\\"')) {
|
| 567 |
|
|
$utf8 .= $chrs{++$c};
|
| 568 |
|
|
}
|
| 569 |
|
|
break;
|
| 570 |
|
|
|
| 571 |
|
|
case preg_match('/\\\u[0-9A-F]{4}/i', substr($chrs, $c, 6)):
|
| 572 |
|
|
// Single, escaped unicode character.
|
| 573 |
|
|
$utf16 = chr(hexdec(substr($chrs, ($c + 2), 2)))
|
| 574 |
|
|
. chr(hexdec(substr($chrs, ($c + 4), 2)));
|
| 575 |
|
|
$utf8 .= $this->utf162utf8($utf16);
|
| 576 |
|
|
$c += 5;
|
| 577 |
|
|
break;
|
| 578 |
|
|
|
| 579 |
|
|
case ($ord_chrs_c >= 0x20) && ($ord_chrs_c <= 0x7F):
|
| 580 |
|
|
$utf8 .= $chrs{$c};
|
| 581 |
|
|
break;
|
| 582 |
|
|
|
| 583 |
|
|
case ($ord_chrs_c & 0xE0) == 0xC0:
|
| 584 |
|
|
// Characters U-00000080 - U-000007FF, mask 110XXXXX.
|
| 585 |
|
|
// @see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
|
| 586 |
|
|
$utf8 .= substr($chrs, $c, 2);
|
| 587 |
|
|
++$c;
|
| 588 |
|
|
break;
|
| 589 |
|
|
|
| 590 |
|
|
case ($ord_chrs_c & 0xF0) == 0xE0:
|
| 591 |
|
|
// Characters U-00000800 - U-0000FFFF, mask 1110XXXX.
|
| 592 |
|
|
// @see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
|
| 593 |
|
|
$utf8 .= substr($chrs, $c, 3);
|
| 594 |
|
|
$c += 2;
|
| 595 |
|
|
break;
|
| 596 |
|
|
|
| 597 |
|
|
case ($ord_chrs_c & 0xF8) == 0xF0:
|
| 598 |
|
|
// Characters U-00010000 - U-001FFFFF, mask 11110XXX.
|
| 599 |
|
|
// @see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
|
| 600 |
|
|
$utf8 .= substr($chrs, $c, 4);
|
| 601 |
|
|
$c += 3;
|
| 602 |
|
|
break;
|
| 603 |
|
|
|
| 604 |
|
|
case ($ord_chrs_c & 0xFC) == 0xF8:
|
| 605 |
|
|
// Characters U-00200000 - U-03FFFFFF, mask 111110XX.
|
| 606 |
|
|
// @see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
|
| 607 |
|
|
$utf8 .= substr($chrs, $c, 5);
|
| 608 |
|
|
$c += 4;
|
| 609 |
|
|
break;
|
| 610 |
|
|
|
| 611 |
|
|
case ($ord_chrs_c & 0xFE) == 0xFC:
|
| 612 |
|
|
// Characters U-04000000 - U-7FFFFFFF, mask 1111110X.
|
| 613 |
|
|
// @see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
|
| 614 |
|
|
$utf8 .= substr($chrs, $c, 6);
|
| 615 |
|
|
$c += 5;
|
| 616 |
|
|
break;
|
| 617 |
|
|
}
|
| 618 |
|
|
}
|
| 619 |
|
|
|
| 620 |
|
|
return $utf8;
|
| 621 |
|
|
|
| 622 |
|
|
}
|
| 623 |
|
|
elseif (preg_match('/^\[.*\]$/s', $str) || preg_match('/^\{.*\}$/s', $str)) {
|
| 624 |
|
|
// Array, or object notation.
|
| 625 |
|
|
if ($str{0} == '[') {
|
| 626 |
|
|
$stk = array(SERVICES_JSON_IN_ARR);
|
| 627 |
|
|
$arr = array();
|
| 628 |
|
|
}
|
| 629 |
|
|
else {
|
| 630 |
|
|
if ($this->use & SERVICES_JSON_LOOSE_TYPE) {
|
| 631 |
|
|
$stk = array(SERVICES_JSON_IN_OBJ);
|
| 632 |
|
|
$obj = array();
|
| 633 |
|
|
}
|
| 634 |
|
|
else {
|
| 635 |
|
|
$stk = array(SERVICES_JSON_IN_OBJ);
|
| 636 |
|
|
$obj = new stdClass();
|
| 637 |
|
|
}
|
| 638 |
|
|
}
|
| 639 |
|
|
|
| 640 |
|
|
array_push($stk, array(
|
| 641 |
|
|
'what' => SERVICES_JSON_SLICE,
|
| 642 |
|
|
'where' => 0,
|
| 643 |
|
|
'delim' => FALSE,
|
| 644 |
|
|
));
|
| 645 |
|
|
|
| 646 |
|
|
$chrs = substr($str, 1, -1);
|
| 647 |
|
|
$chrs = $this->reduce_string($chrs);
|
| 648 |
|
|
|
| 649 |
|
|
if ($chrs == '') {
|
| 650 |
|
|
if (reset($stk) == SERVICES_JSON_IN_ARR) {
|
| 651 |
|
|
return $arr;
|
| 652 |
|
|
}
|
| 653 |
|
|
else {
|
| 654 |
|
|
return $obj;
|
| 655 |
|
|
}
|
| 656 |
|
|
}
|
| 657 |
|
|
|
| 658 |
|
|
// print("\nparsing {$chrs}\n");
|
| 659 |
|
|
$strlen_chrs = strlen($chrs);
|
| 660 |
|
|
|
| 661 |
|
|
for ($c = 0; $c <= $strlen_chrs; ++$c) {
|
| 662 |
|
|
$top = end($stk);
|
| 663 |
|
|
$substr_chrs_c_2 = substr($chrs, $c, 2);
|
| 664 |
|
|
|
| 665 |
|
|
if (($c == $strlen_chrs) || (($chrs{$c} == ',') && ($top['what'] == SERVICES_JSON_SLICE))) {
|
| 666 |
|
|
// Found a comma that is not inside a string, array, etc.,
|
| 667 |
|
|
// OR we've reached the end of the character list.
|
| 668 |
|
|
$slice = substr($chrs, $top['where'], ($c - $top['where']));
|
| 669 |
|
|
array_push($stk, array(
|
| 670 |
|
|
'what' => SERVICES_JSON_SLICE,
|
| 671 |
|
|
'where' => ($c + 1),
|
| 672 |
|
|
'delim' => FALSE,
|
| 673 |
|
|
));
|
| 674 |
|
|
|
| 675 |
|
|
// print("Found split at {$c}: ".substr($chrs, $top['where'], (1 + $c - $top['where']))."\n");
|
| 676 |
|
|
if (reset($stk) == SERVICES_JSON_IN_ARR) {
|
| 677 |
|
|
// We are in an array, so just push an element onto the stack.
|
| 678 |
|
|
array_push($arr, $this->decode($slice));
|
| 679 |
|
|
}
|
| 680 |
|
|
elseif (reset($stk) == SERVICES_JSON_IN_OBJ) {
|
| 681 |
|
|
// We are in an object, so figure
|
| 682 |
|
|
// out the property name and set an
|
| 683 |
|
|
// element in an associative array,
|
| 684 |
|
|
// for now.
|
| 685 |
|
|
$parts = array();
|
| 686 |
|
|
|
| 687 |
|
|
if (preg_match('/^\s*(["\'].*[^\\\]["\'])\s*:\s*(\S.*),?$/Uis', $slice, $parts)) {
|
| 688 |
|
|
// "name":value pair.
|
| 689 |
|
|
$key = $this->decode($parts[1]);
|
| 690 |
|
|
$val = $this->decode($parts[2]);
|
| 691 |
|
|
|
| 692 |
|
|
if ($this->use & SERVICES_JSON_LOOSE_TYPE) {
|
| 693 |
|
|
$obj[$key] = $val;
|
| 694 |
|
|
}
|
| 695 |
|
|
else {
|
| 696 |
|
|
$obj->$key = $val;
|
| 697 |
|
|
}
|
| 698 |
|
|
}
|
| 699 |
|
|
elseif (preg_match('/^\s*(\w+)\s*:\s*(\S.*),?$/Uis', $slice, $parts)) {
|
| 700 |
|
|
// Name:value pair, where name is unquoted.
|
| 701 |
|
|
$key = $parts[1];
|
| 702 |
|
|
$val = $this->decode($parts[2]);
|
| 703 |
|
|
|
| 704 |
|
|
if ($this->use & SERVICES_JSON_LOOSE_TYPE) {
|
| 705 |
|
|
$obj[$key] = $val;
|
| 706 |
|
|
}
|
| 707 |
|
|
else {
|
| 708 |
|
|
$obj->$key = $val;
|
| 709 |
|
|
}
|
| 710 |
|
|
}
|
| 711 |
|
|
}
|
| 712 |
|
|
}
|
| 713 |
|
|
elseif ((($chrs{$c} == '"') || ($chrs{$c} == "'")) && ($top['what'] != SERVICES_JSON_IN_STR)) {
|
| 714 |
|
|
// Found a quote, and we are not inside a string.
|
| 715 |
|
|
array_push($stk, array(
|
| 716 |
|
|
'what' => SERVICES_JSON_IN_STR,
|
| 717 |
|
|
'where' => $c,
|
| 718 |
|
|
'delim' => $chrs{$c},
|
| 719 |
|
|
));
|
| 720 |
|
|
// print("Found start of string at {$c}\n");
|
| 721 |
|
|
}
|
| 722 |
|
|
elseif (($chrs{$c} == $top['delim']) &&
|
| 723 |
|
|
($top['what'] == SERVICES_JSON_IN_STR) &&
|
| 724 |
|
|
(($chrs{$c - 1} != '\\') ||
|
| 725 |
|
|
($chrs{$c - 1} == '\\' && $chrs{$c - 2} == '\\'))) {
|
| 726 |
|
|
// Found a quote, we're in a string, and it's not escaped.
|
| 727 |
|
|
array_pop($stk);
|
| 728 |
|
|
// print("Found end of string at {$c}: ".substr($chrs, $top['where'], (1 + 1 + $c - $top['where']))."\n");
|
| 729 |
|
|
|
| 730 |
|
|
}
|
| 731 |
|
|
elseif (($chrs{$c} == '[') && in_array($top['what'], array(
|
| 732 |
|
|
SERVICES_JSON_SLICE,
|
| 733 |
|
|
SERVICES_JSON_IN_ARR,
|
| 734 |
|
|
SERVICES_JSON_IN_OBJ,
|
| 735 |
|
|
))) {
|
| 736 |
|
|
// Fund a left-bracket, and we are in an array, object, or slice.
|
| 737 |
|
|
array_push($stk, array(
|
| 738 |
|
|
'what' => SERVICES_JSON_IN_ARR,
|
| 739 |
|
|
'where' => $c,
|
| 740 |
|
|
'delim' => FALSE,
|
| 741 |
|
|
));
|
| 742 |
|
|
// print("Found start of array at {$c}\n");
|
| 743 |
|
|
|
| 744 |
|
|
}
|
| 745 |
|
|
elseif (($chrs{$c} == ']') && ($top['what'] == SERVICES_JSON_IN_ARR)) {
|
| 746 |
|
|
// Found a right-bracket, and we're in an array.
|
| 747 |
|
|
array_pop($stk);
|
| 748 |
|
|
// print("Found end of array at {$c}: ".substr($chrs, $top['where'], (1 + $c - $top['where']))."\n");
|
| 749 |
|
|
}
|
| 750 |
|
|
elseif (($chrs{$c} == '{') &&
|
| 751 |
|
|
in_array($top['what'], array(SERVICES_JSON_SLICE, SERVICES_JSON_IN_ARR, SERVICES_JSON_IN_OBJ))) {
|
| 752 |
|
|
// Found a left-brace, and we are in an array, object, or slice.
|
| 753 |
|
|
array_push($stk, array('what' => SERVICES_JSON_IN_OBJ, 'where' => $c, 'delim' => FALSE));
|
| 754 |
|
|
// print("Found start of object at {$c}\n");
|
| 755 |
|
|
}
|
| 756 |
|
|
elseif (($chrs{$c} == '}') && ($top['what'] == SERVICES_JSON_IN_OBJ)) {
|
| 757 |
|
|
// Found a right-brace, and we're in an object.
|
| 758 |
|
|
array_pop($stk);
|
| 759 |
|
|
// print("Found end of object at {$c}: ".substr($chrs, $top['where'], (1 + $c - $top['where']))."\n");
|
| 760 |
|
|
}
|
| 761 |
|
|
elseif (($substr_chrs_c_2 == '/*') &&
|
| 762 |
|
|
in_array($top['what'], array(SERVICES_JSON_SLICE, SERVICES_JSON_IN_ARR, SERVICES_JSON_IN_OBJ))) {
|
| 763 |
|
|
// Found a comment start, and we are in an array, object, or slice.
|
| 764 |
|
|
array_push($stk, array('what' => SERVICES_JSON_IN_CMT, 'where' => $c, 'delim' => FALSE));
|
| 765 |
|
|
$c++;
|
| 766 |
|
|
// print("Found start of comment at {$c}\n");
|
| 767 |
|
|
}
|
| 768 |
|
|
elseif (($substr_chrs_c_2 == '*/') && ($top['what'] == SERVICES_JSON_IN_CMT)) {
|
| 769 |
|
|
// Found a comment end, and we're in one now.
|
| 770 |
|
|
array_pop($stk);
|
| 771 |
|
|
$c++;
|
| 772 |
|
|
|
| 773 |
|
|
for ($i = $top['where']; $i <= $c; ++$i) {
|
| 774 |
|
|
$chrs = substr_replace($chrs, ' ', $i, 1);
|
| 775 |
|
|
}
|
| 776 |
|
|
// print("Found end of comment at {$c}: ".substr($chrs, $top['where'], (1 + $c - $top['where']))."\n");
|
| 777 |
|
|
}
|
| 778 |
|
|
}
|
| 779 |
|
|
|
| 780 |
|
|
if (reset($stk) == SERVICES_JSON_IN_ARR) {
|
| 781 |
|
|
return $arr;
|
| 782 |
|
|
}
|
| 783 |
|
|
elseif (reset($stk) == SERVICES_JSON_IN_OBJ) {
|
| 784 |
|
|
return $obj;
|
| 785 |
|
|
}
|
| 786 |
|
|
}
|
| 787 |
|
|
}
|
| 788 |
|
|
}
|
| 789 |
|
|
|
| 790 |
|
|
/**
|
| 791 |
|
|
* @todo Ultimately, this should just call PEAR::isError().
|
| 792 |
|
|
*/
|
| 793 |
|
|
function isError($data, $code = NULL) {
|
| 794 |
|
|
if (class_exists('pear')) {
|
| 795 |
|
|
return PEAR::isError($data, $code);
|
| 796 |
|
|
}
|
| 797 |
|
|
elseif (is_object($data) && (get_class($data) == 'services_json_error' ||
|
| 798 |
|
|
is_subclass_of($data, 'services_json_error'))) {
|
| 799 |
|
|
return TRUE;
|
| 800 |
|
|
}
|
| 801 |
|
|
|
| 802 |
|
|
return FALSE;
|
| 803 |
|
|
}
|
| 804 |
|
|
}
|
| 805 |
|
|
|
| 806 |
|
|
if (class_exists('PEAR_Error')) {
|
| 807 |
|
|
|
| 808 |
|
|
class Services_JSON_Error extends PEAR_Error {
|
| 809 |
|
|
/**
|
| 810 |
|
|
* @todo document this function.
|
| 811 |
|
|
*
|
| 812 |
|
|
* @param unknown_type $message
|
| 813 |
|
|
* @param unknown_type $code
|
| 814 |
|
|
* @param unknown_type $mode
|
| 815 |
|
|
* @param unknown_type $options
|
| 816 |
|
|
* @param unknown_type $userinfo
|
| 817 |
|
|
*/
|
| 818 |
|
|
function __construct($message = 'unknown error', $code = NULL,
|
| 819 |
|
|
$mode = NULL, $options = NULL, $userinfo = NULL) {
|
| 820 |
|
|
parent::__construct($message, $code, $mode, $options, $userinfo);
|
| 821 |
|
|
}
|
| 822 |
|
|
}
|
| 823 |
|
|
|
| 824 |
|
|
}
|
| 825 |
|
|
else {
|
| 826 |
|
|
/**
|
| 827 |
|
|
* @todo Ultimately, this class shall be descended from PEAR_Error.
|
| 828 |
|
|
*/
|
| 829 |
|
|
class Services_JSON_Error {
|
| 830 |
|
|
/**
|
| 831 |
|
|
* @todo document this function
|
| 832 |
|
|
*
|
| 833 |
|
|
* @param unknown_type $message
|
| 834 |
|
|
* @param unknown_type $code
|
| 835 |
|
|
* @param unknown_type $mode
|
| 836 |
|
|
* @param unknown_type $options
|
| 837 |
|
|
* @param unknown_type $userinfo
|
| 838 |
|
|
*/
|
| 839 |
|
|
function __construct($message = 'unknown error', $code = NULL,
|
| 840 |
|
|
$mode = NULL, $options = NULL, $userinfo = NULL) {
|
| 841 |
|
|
|
| 842 |
|
|
}
|
| 843 |
|
|
}
|
| 844 |
|
|
}
|