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+<?php
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+/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */
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+
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+/**
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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 1.31 2006/06/28 05:54:17 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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+/**
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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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+/**
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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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+/**
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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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+/**
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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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+/**
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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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+/**
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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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+/**
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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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+/**
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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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+ * </code>
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+ */
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+class Services_JSON
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+{
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+ /**
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+ * constructs a new JSON instance
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+ *
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+ * @param int $use object behavior flags; combine with boolean-OR
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+ *
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+ * possible values:
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+ * - SERVICES_JSON_LOOSE_TYPE: loose typing.
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+ * "{...}" syntax creates associative arrays
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+ * instead of objects in decode().
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+ * - SERVICES_JSON_SUPPRESS_ERRORS: error suppression.
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+ * Values which can't be encoded (e.g. resources)
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+ * appear as NULL instead of throwing errors.
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+ * By default, a deeply-nested resource will
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+ * bubble up with an error, so all return values
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+ * from encode() should be checked with isError()
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+ */
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+ function Services_JSON($use = 0)
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+ {
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+ $this->use = $use;
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+ }
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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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+ * @param string $utf16 UTF-16 character
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+ * @return string UTF-8 character
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+ * @access private
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+ */
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+ function utf162utf8($utf16)
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+ {
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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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+
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+ $bytes = (ord($utf16{0}) << 8) | ord($utf16{1});
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+
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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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+
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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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+
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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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+
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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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+ /**
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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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+ * @param string $utf8 UTF-8 character
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+ * @return string UTF-16 character
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+ * @access private
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+ */
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+ function utf82utf16($utf8)
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+ {
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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($utf8, 'UTF-16', 'UTF-8');
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+ }
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+
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+ switch(strlen($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 $utf8;
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+
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+ case 2:
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+ // return a UTF-16 character from a 2-byte UTF-8 char
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+ // see: http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
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+ return chr(0x07 & (ord($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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+
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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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+
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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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+ /**
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+ * encodes an arbitrary variable into JSON format
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+ *
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+ * @param mixed $var any number, boolean, string, array, or object to be encoded.
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+ * see argument 1 to Services_JSON() above for array-parsing behavior.
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+ * if var is a strng, note that encode() always expects it
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+ * to be in ASCII or UTF-8 format!
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+ *
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+ * @return mixed JSON string representation of input var or an error if a problem occurs
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+ * @access public
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+ */
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+ function encode($var)
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+ {
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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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+
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+ case 'NULL':
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+ return 'null';
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+
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+ case 'integer':
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+ return (int) $var;
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+
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+ case 'double':
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+ case 'float':
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+ return (float) $var;
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+
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+ case 'string':
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+ // STRINGS ARE EXPECTED TO BE IN ASCII OR UTF-8 FORMAT
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+ $ascii = '';
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+ $strlen_var = strlen($var);
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+
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+ /*
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+ * Iterate over every character in the string,
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+ * escaping with a slash or encoding to UTF-8 where necessary
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+ */
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+ for ($c = 0; $c < $strlen_var; ++$c) {
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+
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+ $ord_var_c = ord($var{$c});
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+
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+ switch (true) {
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+ case $ord_var_c == 0x08:
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+ $ascii .= '\b';
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+ break;
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+ case $ord_var_c == 0x09:
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+ $ascii .= '\t';
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+ break;
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+ case $ord_var_c == 0x0A:
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+ $ascii .= '\n';
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+ break;
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+ case $ord_var_c == 0x0C:
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+ $ascii .= '\f';
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+ break;
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+ case $ord_var_c == 0x0D:
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+ $ascii .= '\r';
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+ break;
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+
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+ case $ord_var_c == 0x22:
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+ case $ord_var_c == 0x2F:
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+ case $ord_var_c == 0x5C:
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+ // double quote, slash, slosh
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+ $ascii .= '\\'.$var{$c};
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+ break;
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+
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+ case (($ord_var_c >= 0x20) && ($ord_var_c <= 0x7F)):
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+ // characters U-00000000 - U-0000007F (same as ASCII)
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+ $ascii .= $var{$c};
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+ break;
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+
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+ case (($ord_var_c & 0xE0) == 0xC0):
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+ // characters U-00000080 - U-000007FF, mask 110XXXXX
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+ // see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
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+ $char = pack('C*', $ord_var_c, ord($var{$c + 1}));
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+ $c += 1;
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+ $utf16 = $this->utf82utf16($char);
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+ $ascii .= sprintf('\u%04s', bin2hex($utf16));
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+ break;
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+
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+ case (($ord_var_c & 0xF0) == 0xE0):
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+ // characters U-00000800 - U-0000FFFF, mask 1110XXXX
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|
|
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
|
+?>
|
pecesama