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724 lines
31 KiB
724 lines
31 KiB
<?php |
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/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */ |
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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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* @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', 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_OBJ', 8); |
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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', 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_LOOSE_TYPE', 10); |
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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_STRICT_TYPE', 11); |
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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 $use object behavior: when encoding or decoding, |
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* be loose or strict about object/array usage |
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* |
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* possible values: |
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* - SERVICES_JSON_STRICT_TYPE: strict typing, default. |
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* "{...}" syntax creates objects in decode(). |
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* - SERVICES_JSON_LOOSE_TYPE: loose typing. |
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* "{...}" syntax creates associative arrays in decode(). |
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*/ |
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function Services_JSON($use = SERVICES_JSON_STRICT_TYPE) |
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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($utf16, 'UTF-8', 'UTF-16'); |
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$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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|
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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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|
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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 |
|
* 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($utf8, 'UTF-16', 'UTF-8'); |
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switch(strlen($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 $ut8; |
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case 2: |
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// return a UTF-16 character from a 2-byte UTF-8 char |
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// see: http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8 |
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return chr(0x07 & (ord($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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/** |
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* encodes an arbitrary variable into JSON format |
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* |
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* @param mixed $var any number, boolean, string, array, or object to be encoded. |
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* see argument 1 to Services_JSON() above for array-parsing behavior. |
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* if var is a strng, note that encode() always expects it |
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* to be in ASCII or UTF-8 format! |
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* |
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* @return string JSON string representation of input var |
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* @access public |
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*/ |
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function encode($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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case 'NULL': |
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return 'null'; |
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case 'integer': |
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return (int) $var; |
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case 'double': |
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case 'float': |
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return (float) $var; |
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case 'string': |
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// STRINGS ARE EXPECTED TO BE IN ASCII OR UTF-8 FORMAT |
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$ascii = ''; |
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$strlen_var = strlen($var); |
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/* |
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* 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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$ord_var_c = ord($var{$c}); |
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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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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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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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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 (($ord_var_c & 0xF0) == 0xE0): |
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// characters U-00000800 - U-0000FFFF, mask 1110XXXX |
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// see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8 |
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$char = pack('C*', $ord_var_c, |
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ord($var{$c + 1}), |
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ord($var{$c + 2})); |
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$c += 2; |
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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 (($ord_var_c & 0xF8) == 0xF0): |
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// characters U-00010000 - U-001FFFFF, mask 11110XXX |
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// see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8 |
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$char = pack('C*', $ord_var_c, |
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ord($var{$c + 1}), |
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ord($var{$c + 2}), |
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ord($var{$c + 3})); |
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$c += 3; |
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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 (($ord_var_c & 0xFC) == 0xF8): |
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// characters U-00200000 - U-03FFFFFF, mask 111110XX |
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// see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8 |
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$char = pack('C*', $ord_var_c, |
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ord($var{$c + 1}), |
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ord($var{$c + 2}), |
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ord($var{$c + 3}), |
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ord($var{$c + 4})); |
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$c += 4; |
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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 (($ord_var_c & 0xFE) == 0xFC): |
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// characters U-04000000 - U-7FFFFFFF, mask 1111110X |
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// see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8 |
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$char = pack('C*', $ord_var_c, |
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ord($var{$c + 1}), |
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ord($var{$c + 2}), |
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ord($var{$c + 3}), |
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ord($var{$c + 4}), |
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ord($var{$c + 5})); |
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$c += 5; |
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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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} |
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|
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return '"'.$ascii.'"'; |
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|
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case 'array': |
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/* |
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* As per JSON spec if any array key is not an integer |
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* we must treat the the whole array as an object. We |
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* also try to catch a sparsely populated associative |
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* array with numeric keys here because some JS engines |
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* will create an array with empty indexes up to |
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* max_index which can cause memory issues and because |
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* the keys, which may be relevant, will be remapped |
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* otherwise. |
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* |
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* As per the ECMA and JSON specification an object may |
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* have any string as a property. Unfortunately due to |
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* a hole in the ECMA specification if the key is a |
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* ECMA reserved word or starts with a digit the |
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* parameter is only accessible using ECMAScript's |
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* bracket notation. |
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*/ |
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|
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// treat as a JSON object |
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if (is_array($var) && count($var) && (array_keys($var) !== range(0, sizeof($var) - 1))) { |
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return '{' . |
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join(',', array_map(array($this, 'name_value'), |
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array_keys($var), |
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array_values($var))) |
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. '}'; |
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} |
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|
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// treat it like a regular array |
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return '[' . join(',', array_map(array($this, 'encode'), $var)) . ']'; |
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|
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case 'object': |
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$vars = get_object_vars($var); |
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return '{' . |
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join(',', array_map(array($this, 'name_value'), |
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array_keys($vars), |
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array_values($vars))) |
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. '}'; |
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|
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default: |
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return ''; |
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} |
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} |
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|
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/** |
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* array-walking function for use in generating JSON-formatted name-value pairs |
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* |
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* @param string $name name of key to use |
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* @param mixed $value reference to an array element to be encoded |
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* |
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* @return string JSON-formatted name-value pair, like '"name":value' |
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* @access private |
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*/ |
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function name_value($name, $value) |
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{ |
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return $this->encode(strval($name)) . ':' . $this->encode($value); |
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} |
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|
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/** |
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* reduce a string by removing leading and trailing comments and whitespace |
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* |
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* @param $str string string value to strip of comments and whitespace |
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* |
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* @return string string value stripped of comments and whitespace |
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* @access private |
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*/ |
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function reduce_string($str) |
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{ |
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$str = preg_replace(array( |
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|
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// eliminate single line comments in '// ...' form |
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'#^\s*//(.+)$#m', |
|
|
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// eliminate multi-line comments in '/* ... */' form, at start of string |
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'#^\s*/\*(.+)\*/#Us', |
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|
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// eliminate multi-line comments in '/* ... */' form, at end of string |
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'#/\*(.+)\*/\s*$#Us' |
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|
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), '', $str); |
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|
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// eliminate extraneous space |
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return trim($str); |
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} |
|
|
|
/** |
|
* decodes a JSON string into appropriate variable |
|
* |
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* @param string $str JSON-formatted string |
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* |
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* @return mixed number, boolean, string, array, or object |
|
* corresponding to given JSON input string. |
|
* See argument 1 to Services_JSON() above for object-output behavior. |
|
* Note that decode() always returns strings |
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* in ASCII or UTF-8 format! |
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* @access public |
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*/ |
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function decode($str) |
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{ |
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$str = $this->reduce_string($str); |
|
|
|
switch (strtolower($str)) { |
|
case 'true': |
|
return true; |
|
|
|
case 'false': |
|
return false; |
|
|
|
case 'null': |
|
return null; |
|
|
|
default: |
|
if (is_numeric($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 |
|
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) && |
|
(($chrs{$c - 1} != '\\') || |
|
($chrs{$c - 1} == '\\' && $chrs{$c - 2} == '\\'))) { |
|
// found a quote, we're in a string, and it's not escaped |
|
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; |
|
|
|
} |
|
|
|
} |
|
} |
|
} |
|
|
|
} |
|
|
|
?>
|