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<?php |
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/* |
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Module: Document |
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Version: 2.01 |
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Description: Multilingual Content Module with tags and lists with search functions |
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Author: Written by Simon Roberts aka. Wishcraft ([email protected]) |
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Owner: Chronolabs |
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License: See /docs - GPL 2.0 |
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*/ |
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/* |
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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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* </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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* 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($utf16, 'UTF-8', 'UTF-16'); |
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} |
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$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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* @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($utf8, 'UTF-16', 'UTF-8'); |
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} |
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switch(strlen($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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/** |
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* encodes an arbitrary variable into JSON format (and sends JSON Header) |
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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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header('Document-type: application/json'); |
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return $this->encodeUnsafe($var); |
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} |
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/** |
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* encodes an arbitrary variable into JSON format without JSON Header - warning - may allow CSS!!!!) |
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* |
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* @param mixed $var any number, boolean, string, array, or object to be encoded. |
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* see argument 1 to Services_JSON() above for array-parsing behavior. |
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* if var is a strng, note that encode() always expects it |
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* to be in ASCII or UTF-8 format! |
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* |
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* @return mixed JSON string representation of input var or an error if a problem occurs |
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* @access public |
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*/ |
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function encodeUnsafe($var) |
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{ |
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// see bug #16908 - regarding numeric locale printing |
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$lc = setlocale(LC_NUMERIC, 0); |
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setlocale(LC_NUMERIC, 'C'); |
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$ret = $this->_encode($var); |
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setlocale(LC_NUMERIC, $lc); |
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return $ret; |
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} |
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/** |
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* PRIVATE CODE that does the work of 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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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) $var; |
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253
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case 'string': |
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// STRINGS ARE EXPECTED TO BE IN ASCII OR UTF-8 FORMAT |
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$ascii = ''; |
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256
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$strlen_var = strlen($var); |
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257
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258
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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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264
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$ord_var_c = ord($var{$c}); |
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265
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266
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switch (true) { |
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267
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case $ord_var_c == 0x08: |
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268
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$ascii .= '\b'; |
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269
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break; |
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270
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case $ord_var_c == 0x09: |
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271
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$ascii .= '\t'; |
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break; |
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273
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case $ord_var_c == 0x0A: |
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274
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$ascii .= '\n'; |
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275
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break; |
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case $ord_var_c == 0x0C: |
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277
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$ascii .= '\f'; |
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278
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break; |
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279
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case $ord_var_c == 0x0D: |
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280
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$ascii .= '\r'; |
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281
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break; |
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282
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283
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case $ord_var_c == 0x22: |
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284
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case $ord_var_c == 0x2F: |
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285
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case $ord_var_c == 0x5C: |
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286
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// double quote, slash, slosh |
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287
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$ascii .= '\\'.$var{$c}; |
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288
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break; |
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289
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290
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case (($ord_var_c >= 0x20) && ($ord_var_c <= 0x7F)): |
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291
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// characters U-00000000 - U-0000007F (same as ASCII) |
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292
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$ascii .= $var{$c}; |
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293
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break; |
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294
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295
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case (($ord_var_c & 0xE0) == 0xC0): |
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296
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// characters U-00000080 - U-000007FF, mask 110XXXXX |
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297
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// see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8 |
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298
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if ($c+1 >= $strlen_var) { |
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299
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$c += 1; |
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300
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$ascii .= '?'; |
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break; |
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} |
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303
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304
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$char = pack('C*', $ord_var_c, ord($var{$c + 1})); |
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305
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$c += 1; |
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306
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$utf16 = $this->utf82utf16($char); |
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307
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$ascii .= sprintf('\u%04s', bin2hex($utf16)); |
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308
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break; |
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309
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310
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case (($ord_var_c & 0xF0) == 0xE0): |
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311
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if ($c+2 >= $strlen_var) { |
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312
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$c += 2; |
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313
|
|
|
$ascii .= '?'; |
|
314
|
|
|
break; |
|
315
|
|
|
} |
|
316
|
|
|
// characters U-00000800 - U-0000FFFF, mask 1110XXXX |
|
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
|
|
|
$c += 2; |
|
322
|
|
|
$utf16 = $this->utf82utf16($char); |
|
323
|
|
|
$ascii .= sprintf('\u%04s', bin2hex($utf16)); |
|
324
|
|
|
break; |
|
325
|
|
|
|
|
326
|
|
|
case (($ord_var_c & 0xF8) == 0xF0): |
|
327
|
|
|
if ($c+3 >= $strlen_var) { |
|
328
|
|
|
$c += 3; |
|
329
|
|
|
$ascii .= '?'; |
|
330
|
|
|
break; |
|
331
|
|
|
} |
|
332
|
|
|
// characters U-00010000 - U-001FFFFF, mask 11110XXX |
|
333
|
|
|
// see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8 |
|
334
|
|
|
$char = pack('C*', $ord_var_c, |
|
335
|
|
|
ord($var{$c + 1}), |
|
336
|
|
|
ord($var{$c + 2}), |
|
337
|
|
|
ord($var{$c + 3})); |
|
338
|
|
|
$c += 3; |
|
339
|
|
|
$utf16 = $this->utf82utf16($char); |
|
340
|
|
|
$ascii .= sprintf('\u%04s', bin2hex($utf16)); |
|
341
|
|
|
break; |
|
342
|
|
|
|
|
343
|
|
|
case (($ord_var_c & 0xFC) == 0xF8): |
|
344
|
|
|
// characters U-00200000 - U-03FFFFFF, mask 111110XX |
|
345
|
|
|
// see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8 |
|
346
|
|
|
if ($c+4 >= $strlen_var) { |
|
347
|
|
|
$c += 4; |
|
348
|
|
|
$ascii .= '?'; |
|
349
|
|
|
break; |
|
350
|
|
|
} |
|
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
|
|
|
$c += 4; |
|
357
|
|
|
$utf16 = $this->utf82utf16($char); |
|
358
|
|
|
$ascii .= sprintf('\u%04s', bin2hex($utf16)); |
|
359
|
|
|
break; |
|
360
|
|
|
|
|
361
|
|
|
case (($ord_var_c & 0xFE) == 0xFC): |
|
362
|
|
|
if ($c+5 >= $strlen_var) { |
|
363
|
|
|
$c += 5; |
|
364
|
|
|
$ascii .= '?'; |
|
365
|
|
|
break; |
|
366
|
|
|
} |
|
367
|
|
|
// characters U-04000000 - U-7FFFFFFF, mask 1111110X |
|
368
|
|
|
// see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8 |
|
369
|
|
|
$char = pack('C*', $ord_var_c, |
|
370
|
|
|
ord($var{$c + 1}), |
|
371
|
|
|
ord($var{$c + 2}), |
|
372
|
|
|
ord($var{$c + 3}), |
|
373
|
|
|
ord($var{$c + 4}), |
|
374
|
|
|
ord($var{$c + 5})); |
|
375
|
|
|
$c += 5; |
|
376
|
|
|
$utf16 = $this->utf82utf16($char); |
|
377
|
|
|
$ascii .= sprintf('\u%04s', bin2hex($utf16)); |
|
378
|
|
|
break; |
|
379
|
|
|
} |
|
380
|
|
|
} |
|
381
|
|
|
return '"'.$ascii.'"'; |
|
382
|
|
|
|
|
383
|
|
|
case 'array': |
|
384
|
|
|
/* |
|
385
|
|
|
* As per JSON spec if any array key is not an integer |
|
386
|
|
|
* we must treat the the whole array as an object. We |
|
387
|
|
|
* also try to catch a sparsely populated associative |
|
388
|
|
|
* array with numeric keys here because some JS engines |
|
389
|
|
|
* will create an array with empty indexes up to |
|
390
|
|
|
* max_index which can cause memory issues and because |
|
391
|
|
|
* the keys, which may be relevant, will be remapped |
|
392
|
|
|
* otherwise. |
|
393
|
|
|
* |
|
394
|
|
|
* As per the ECMA and JSON specification an object may |
|
395
|
|
|
* have any string as a property. Unfortunately due to |
|
396
|
|
|
* a hole in the ECMA specification if the key is a |
|
397
|
|
|
* ECMA reserved word or starts with a digit the |
|
398
|
|
|
* parameter is only accessible using ECMAScript's |
|
399
|
|
|
* bracket notation. |
|
400
|
|
|
*/ |
|
401
|
|
|
|
|
402
|
|
|
// treat as a JSON object |
|
403
|
|
|
if (is_array($var) && count($var) && (array_keys($var) !== range(0, sizeof($var) - 1))) { |
|
404
|
|
|
$properties = array_map(array($this, 'name_value'), |
|
405
|
|
|
array_keys($var), |
|
406
|
|
|
array_values($var)); |
|
407
|
|
|
|
|
408
|
|
|
foreach($properties as $property) { |
|
409
|
|
|
if(Services_JSON::isError($property)) { |
|
|
|
|
|
|
410
|
|
|
return $property; |
|
411
|
|
|
} |
|
412
|
|
|
} |
|
413
|
|
|
|
|
414
|
|
|
return '{'.join(',', $properties).'}'; |
|
415
|
|
|
} |
|
416
|
|
|
|
|
417
|
|
|
// treat it like a regular array |
|
418
|
|
|
$elements = array_map(array($this, '_encode'), $var); |
|
419
|
|
|
|
|
420
|
|
|
foreach($elements as $element) { |
|
421
|
|
|
if(Services_JSON::isError($element)) { |
|
422
|
|
|
return $element; |
|
423
|
|
|
} |
|
424
|
|
|
} |
|
425
|
|
|
|
|
426
|
|
|
return '['.join(',', $elements).']'; |
|
427
|
|
|
|
|
428
|
|
|
case 'object': |
|
429
|
|
|
$vars = get_object_vars($var); |
|
430
|
|
|
|
|
431
|
|
|
$properties = array_map(array($this, 'name_value'), |
|
432
|
|
|
array_keys($vars), |
|
433
|
|
|
array_values($vars)); |
|
434
|
|
|
|
|
435
|
|
|
foreach($properties as $property) { |
|
436
|
|
|
if(Services_JSON::isError($property)) { |
|
437
|
|
|
return $property; |
|
438
|
|
|
} |
|
439
|
|
|
} |
|
440
|
|
|
|
|
441
|
|
|
return '{'.join(',', $properties).'}'; |
|
442
|
|
|
|
|
443
|
|
|
default: |
|
444
|
|
|
return ($this->use & SERVICES_JSON_SUPPRESS_ERRORS) |
|
445
|
|
|
? 'null' |
|
446
|
|
|
: new Services_JSON_Error(gettype($var)." can not be encoded as JSON string"); |
|
447
|
|
|
} |
|
448
|
|
|
} |
|
449
|
|
|
|
|
450
|
|
|
/** |
|
451
|
|
|
* array-walking function for use in generating JSON-formatted name-value pairs |
|
452
|
|
|
* |
|
453
|
|
|
* @param string $name name of key to use |
|
454
|
|
|
* @param mixed $value reference to an array element to be encoded |
|
455
|
|
|
* |
|
456
|
|
|
* @return string JSON-formatted name-value pair, like '"name":value' |
|
457
|
|
|
* @access private |
|
458
|
|
|
*/ |
|
459
|
|
|
function name_value($name, $value) |
|
|
|
|
|
|
460
|
|
|
{ |
|
461
|
|
|
$encoded_value = $this->_encode($value); |
|
462
|
|
|
|
|
463
|
|
|
if(Services_JSON::isError($encoded_value)) { |
|
|
|
|
|
|
464
|
|
|
return $encoded_value; |
|
|
|
|
|
|
465
|
|
|
} |
|
466
|
|
|
|
|
467
|
|
|
return $this->_encode(strval($name)).':'.$encoded_value; |
|
468
|
|
|
} |
|
469
|
|
|
|
|
470
|
|
|
/** |
|
471
|
|
|
* reduce a string by removing leading and trailing comments and whitespace |
|
472
|
|
|
* |
|
473
|
|
|
* @param $str string string value to strip of comments and whitespace |
|
474
|
|
|
* |
|
475
|
|
|
* @return string string value stripped of comments and whitespace |
|
476
|
|
|
* @access private |
|
477
|
|
|
*/ |
|
478
|
|
|
function reduce_string($str) |
|
|
|
|
|
|
479
|
|
|
{ |
|
480
|
|
|
$str = preg_replace(array( |
|
481
|
|
|
|
|
482
|
|
|
// eliminate single line comments in '// ...' form |
|
483
|
|
|
'#^\s*//(.+)$#m', |
|
484
|
|
|
|
|
485
|
|
|
// eliminate multi-line comments in '/* ... */' form, at start of string |
|
486
|
|
|
'#^\s*/\*(.+)\*/#Us', |
|
487
|
|
|
|
|
488
|
|
|
// eliminate multi-line comments in '/* ... */' form, at end of string |
|
489
|
|
|
'#/\*(.+)\*/\s*$#Us' |
|
490
|
|
|
|
|
491
|
|
|
), '', $str); |
|
492
|
|
|
|
|
493
|
|
|
// eliminate extraneous space |
|
494
|
|
|
return trim($str); |
|
495
|
|
|
} |
|
496
|
|
|
|
|
497
|
|
|
/** |
|
498
|
|
|
* decodes a JSON string into appropriate variable |
|
499
|
|
|
* |
|
500
|
|
|
* @param string $str JSON-formatted string |
|
501
|
|
|
* |
|
502
|
|
|
* @return mixed number, boolean, string, array, or object |
|
503
|
|
|
* corresponding to given JSON input string. |
|
504
|
|
|
* See argument 1 to Services_JSON() above for object-output behavior. |
|
505
|
|
|
* Note that decode() always returns strings |
|
506
|
|
|
* in ASCII or UTF-8 format! |
|
507
|
|
|
* @access public |
|
508
|
|
|
*/ |
|
509
|
|
|
function decode($str) |
|
|
|
|
|
|
510
|
|
|
{ |
|
511
|
|
|
$str = $this->reduce_string($str); |
|
512
|
|
|
|
|
513
|
|
|
switch (strtolower($str)) { |
|
514
|
|
|
case 'true': |
|
515
|
|
|
return true; |
|
516
|
|
|
|
|
517
|
|
|
case 'false': |
|
518
|
|
|
return false; |
|
519
|
|
|
|
|
520
|
|
|
case 'null': |
|
521
|
|
|
return null; |
|
522
|
|
|
|
|
523
|
|
|
default: |
|
524
|
|
|
$m = array(); |
|
525
|
|
|
|
|
526
|
|
|
if (is_numeric($str)) { |
|
527
|
|
|
// Lookie-loo, it's a number |
|
528
|
|
|
|
|
529
|
|
|
// This would work on its own, but I'm trying to be |
|
530
|
|
|
// good about returning integers where appropriate: |
|
531
|
|
|
// return (float)$str; |
|
532
|
|
|
|
|
533
|
|
|
// Return float or int, as appropriate |
|
534
|
|
|
return ((float)$str == (integer)$str) |
|
535
|
|
|
? (integer)$str |
|
536
|
|
|
: (float)$str; |
|
537
|
|
|
|
|
538
|
|
|
} elseif (preg_match('/^("|\').*(\1)$/s', $str, $m) && $m[1] == $m[2]) { |
|
539
|
|
|
// STRINGS RETURNED IN UTF-8 FORMAT |
|
540
|
|
|
$delim = substr($str, 0, 1); |
|
541
|
|
|
$chrs = substr($str, 1, -1); |
|
542
|
|
|
$utf8 = ''; |
|
543
|
|
|
$strlen_chrs = strlen($chrs); |
|
544
|
|
|
|
|
545
|
|
|
for ($c = 0; $c < $strlen_chrs; ++$c) { |
|
546
|
|
|
|
|
547
|
|
|
$substr_chrs_c_2 = substr($chrs, $c, 2); |
|
548
|
|
|
$ord_chrs_c = ord($chrs{$c}); |
|
549
|
|
|
|
|
550
|
|
|
switch (true) { |
|
|
|
|
|
|
551
|
|
|
case $substr_chrs_c_2 == '\b': |
|
552
|
|
|
$utf8 .= chr(0x08); |
|
553
|
|
|
++$c; |
|
554
|
|
|
break; |
|
555
|
|
|
case $substr_chrs_c_2 == '\t': |
|
556
|
|
|
$utf8 .= chr(0x09); |
|
557
|
|
|
++$c; |
|
558
|
|
|
break; |
|
559
|
|
|
case $substr_chrs_c_2 == '\n': |
|
560
|
|
|
$utf8 .= chr(0x0A); |
|
561
|
|
|
++$c; |
|
562
|
|
|
break; |
|
563
|
|
|
case $substr_chrs_c_2 == '\f': |
|
564
|
|
|
$utf8 .= chr(0x0C); |
|
565
|
|
|
++$c; |
|
566
|
|
|
break; |
|
567
|
|
|
case $substr_chrs_c_2 == '\r': |
|
568
|
|
|
$utf8 .= chr(0x0D); |
|
569
|
|
|
++$c; |
|
570
|
|
|
break; |
|
571
|
|
|
|
|
572
|
|
|
case $substr_chrs_c_2 == '\\"': |
|
573
|
|
|
case $substr_chrs_c_2 == '\\\'': |
|
574
|
|
|
case $substr_chrs_c_2 == '\\\\': |
|
575
|
|
|
case $substr_chrs_c_2 == '\\/': |
|
576
|
|
|
if (($delim == '"' && $substr_chrs_c_2 != '\\\'') || |
|
577
|
|
|
($delim == "'" && $substr_chrs_c_2 != '\\"')) { |
|
578
|
|
|
$utf8 .= $chrs{++$c}; |
|
579
|
|
|
} |
|
580
|
|
|
break; |
|
581
|
|
|
|
|
582
|
|
|
case preg_match('/\\\u[0-9A-F]{4}/i', substr($chrs, $c, 6)): |
|
583
|
|
|
// single, escaped unicode character |
|
584
|
|
|
$utf16 = chr(hexdec(substr($chrs, ($c + 2), 2))) |
|
|
|
|
|
|
585
|
|
|
.chr(hexdec(substr($chrs, ($c + 4), 2))); |
|
586
|
|
|
$utf8 .= $this->utf162utf8($utf16); |
|
587
|
|
|
$c += 5; |
|
588
|
|
|
break; |
|
589
|
|
|
|
|
590
|
|
|
case ($ord_chrs_c >= 0x20) && ($ord_chrs_c <= 0x7F): |
|
591
|
|
|
$utf8 .= $chrs{$c}; |
|
592
|
|
|
break; |
|
593
|
|
|
|
|
594
|
|
|
case ($ord_chrs_c & 0xE0) == 0xC0: |
|
595
|
|
|
// characters U-00000080 - U-000007FF, mask 110XXXXX |
|
596
|
|
|
//see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8 |
|
597
|
|
|
$utf8 .= substr($chrs, $c, 2); |
|
598
|
|
|
++$c; |
|
599
|
|
|
break; |
|
600
|
|
|
|
|
601
|
|
|
case ($ord_chrs_c & 0xF0) == 0xE0: |
|
602
|
|
|
// characters U-00000800 - U-0000FFFF, mask 1110XXXX |
|
603
|
|
|
// see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8 |
|
604
|
|
|
$utf8 .= substr($chrs, $c, 3); |
|
605
|
|
|
$c += 2; |
|
606
|
|
|
break; |
|
607
|
|
|
|
|
608
|
|
|
case ($ord_chrs_c & 0xF8) == 0xF0: |
|
609
|
|
|
// characters U-00010000 - U-001FFFFF, mask 11110XXX |
|
610
|
|
|
// see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8 |
|
611
|
|
|
$utf8 .= substr($chrs, $c, 4); |
|
612
|
|
|
$c += 3; |
|
613
|
|
|
break; |
|
614
|
|
|
|
|
615
|
|
|
case ($ord_chrs_c & 0xFC) == 0xF8: |
|
616
|
|
|
// characters U-00200000 - U-03FFFFFF, mask 111110XX |
|
617
|
|
|
// see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8 |
|
618
|
|
|
$utf8 .= substr($chrs, $c, 5); |
|
619
|
|
|
$c += 4; |
|
620
|
|
|
break; |
|
621
|
|
|
|
|
622
|
|
|
case ($ord_chrs_c & 0xFE) == 0xFC: |
|
623
|
|
|
// characters U-04000000 - U-7FFFFFFF, mask 1111110X |
|
624
|
|
|
// see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8 |
|
625
|
|
|
$utf8 .= substr($chrs, $c, 6); |
|
626
|
|
|
$c += 5; |
|
627
|
|
|
break; |
|
628
|
|
|
|
|
629
|
|
|
} |
|
630
|
|
|
|
|
631
|
|
|
} |
|
632
|
|
|
|
|
633
|
|
|
return $utf8; |
|
634
|
|
|
|
|
635
|
|
|
} elseif (preg_match('/^\[.*\]$/s', $str) || preg_match('/^\{.*\}$/s', $str)) { |
|
636
|
|
|
// array, or object notation |
|
637
|
|
|
|
|
638
|
|
|
if ($str{0} == '[') { |
|
639
|
|
|
$stk = array(SERVICES_JSON_IN_ARR); |
|
640
|
|
|
$arr = array(); |
|
641
|
|
|
} else { |
|
642
|
|
|
if ($this->use & SERVICES_JSON_LOOSE_TYPE) { |
|
643
|
|
|
$stk = array(SERVICES_JSON_IN_OBJ); |
|
644
|
|
|
$obj = array(); |
|
645
|
|
|
} else { |
|
646
|
|
|
$stk = array(SERVICES_JSON_IN_OBJ); |
|
647
|
|
|
$obj = new stdClass(); |
|
648
|
|
|
} |
|
649
|
|
|
} |
|
650
|
|
|
|
|
651
|
|
|
array_push($stk, array('what' => SERVICES_JSON_SLICE, |
|
652
|
|
|
'where' => 0, |
|
653
|
|
|
'delim' => false)); |
|
654
|
|
|
|
|
655
|
|
|
$chrs = substr($str, 1, -1); |
|
656
|
|
|
$chrs = $this->reduce_string($chrs); |
|
657
|
|
|
|
|
658
|
|
|
if ($chrs == '') { |
|
659
|
|
|
if (reset($stk) == SERVICES_JSON_IN_ARR) { |
|
660
|
|
|
return $arr; |
|
|
|
|
|
|
661
|
|
|
|
|
662
|
|
|
} else { |
|
663
|
|
|
return $obj; |
|
|
|
|
|
|
664
|
|
|
|
|
665
|
|
|
} |
|
666
|
|
|
} |
|
667
|
|
|
|
|
668
|
|
|
//print("\nparsing {$chrs}\n"); |
|
669
|
|
|
|
|
670
|
|
|
$strlen_chrs = strlen($chrs); |
|
671
|
|
|
|
|
672
|
|
|
for ($c = 0; $c <= $strlen_chrs; ++$c) { |
|
673
|
|
|
|
|
674
|
|
|
$top = end($stk); |
|
675
|
|
|
$substr_chrs_c_2 = substr($chrs, $c, 2); |
|
676
|
|
|
|
|
677
|
|
|
if (($c == $strlen_chrs) || (($chrs{$c} == ',') && ($top['what'] == SERVICES_JSON_SLICE))) { |
|
678
|
|
|
// found a comma that is not inside a string, array, etc., |
|
679
|
|
|
// OR we've reached the end of the character list |
|
680
|
|
|
$slice = substr($chrs, $top['where'], ($c - $top['where'])); |
|
681
|
|
|
array_push($stk, array('what' => SERVICES_JSON_SLICE, 'where' => ($c + 1), 'delim' => false)); |
|
682
|
|
|
//print("Found split at {$c}: ".substr($chrs, $top['where'], (1 + $c - $top['where']))."\n"); |
|
683
|
|
|
|
|
684
|
|
|
if (reset($stk) == SERVICES_JSON_IN_ARR) { |
|
685
|
|
|
// we are in an array, so just push an element onto the stack |
|
686
|
|
|
array_push($arr, $this->decode($slice)); |
|
687
|
|
|
|
|
688
|
|
|
} elseif (reset($stk) == SERVICES_JSON_IN_OBJ) { |
|
689
|
|
|
// we are in an object, so figure |
|
690
|
|
|
// out the property name and set an |
|
691
|
|
|
// element in an associative array, |
|
692
|
|
|
// for now |
|
693
|
|
|
$parts = array(); |
|
694
|
|
|
|
|
695
|
|
|
if (preg_match('/^\s*(["\'].*[^\\\]["\'])\s*:\s*(\S.*),?$/Uis', $slice, $parts)) { |
|
696
|
|
|
// "name":value pair |
|
697
|
|
|
$key = $this->decode($parts[1]); |
|
698
|
|
|
$val = $this->decode($parts[2]); |
|
699
|
|
|
|
|
700
|
|
|
if ($this->use & SERVICES_JSON_LOOSE_TYPE) { |
|
701
|
|
|
$obj[$key] = $val; |
|
702
|
|
|
} else { |
|
703
|
|
|
$obj->$key = $val; |
|
704
|
|
|
} |
|
705
|
|
|
} elseif (preg_match('/^\s*(\w+)\s*:\s*(\S.*),?$/Uis', $slice, $parts)) { |
|
706
|
|
|
// name:value pair, where name is unquoted |
|
707
|
|
|
$key = $parts[1]; |
|
708
|
|
|
$val = $this->decode($parts[2]); |
|
709
|
|
|
|
|
710
|
|
|
if ($this->use & SERVICES_JSON_LOOSE_TYPE) { |
|
711
|
|
|
$obj[$key] = $val; |
|
712
|
|
|
} else { |
|
713
|
|
|
$obj->$key = $val; |
|
714
|
|
|
} |
|
715
|
|
|
} |
|
716
|
|
|
|
|
717
|
|
|
} |
|
718
|
|
|
|
|
719
|
|
|
} elseif ((($chrs{$c} == '"') || ($chrs{$c} == "'")) && ($top['what'] != SERVICES_JSON_IN_STR)) { |
|
720
|
|
|
// found a quote, and we are not inside a string |
|
721
|
|
|
array_push($stk, array('what' => SERVICES_JSON_IN_STR, 'where' => $c, 'delim' => $chrs{$c})); |
|
722
|
|
|
//print("Found start of string at {$c}\n"); |
|
723
|
|
|
|
|
724
|
|
|
} elseif (($chrs{$c} == $top['delim']) && |
|
725
|
|
|
($top['what'] == SERVICES_JSON_IN_STR) && |
|
726
|
|
|
((strlen(substr($chrs, 0, $c)) - strlen(rtrim(substr($chrs, 0, $c), '\\'))) % 2 != 1)) { |
|
727
|
|
|
// found a quote, we're in a string, and it's not escaped |
|
728
|
|
|
// we know that it's not escaped becase there is _not_ an |
|
729
|
|
|
// odd number of backslashes at the end of the string so far |
|
730
|
|
|
array_pop($stk); |
|
731
|
|
|
//print("Found end of string at {$c}: ".substr($chrs, $top['where'], (1 + 1 + $c - $top['where']))."\n"); |
|
732
|
|
|
|
|
733
|
|
|
} elseif (($chrs{$c} == '[') && |
|
734
|
|
|
in_array($top['what'], array(SERVICES_JSON_SLICE, SERVICES_JSON_IN_ARR, SERVICES_JSON_IN_OBJ))) { |
|
735
|
|
|
// found a left-bracket, and we are in an array, object, or slice |
|
736
|
|
|
array_push($stk, array('what' => SERVICES_JSON_IN_ARR, 'where' => $c, 'delim' => false)); |
|
737
|
|
|
//print("Found start of array at {$c}\n"); |
|
738
|
|
|
|
|
739
|
|
|
} elseif (($chrs{$c} == ']') && ($top['what'] == SERVICES_JSON_IN_ARR)) { |
|
740
|
|
|
// found a right-bracket, and we're in an array |
|
741
|
|
|
array_pop($stk); |
|
742
|
|
|
//print("Found end of array at {$c}: ".substr($chrs, $top['where'], (1 + $c - $top['where']))."\n"); |
|
743
|
|
|
|
|
744
|
|
|
} elseif (($chrs{$c} == '{') && |
|
745
|
|
|
in_array($top['what'], array(SERVICES_JSON_SLICE, SERVICES_JSON_IN_ARR, SERVICES_JSON_IN_OBJ))) { |
|
746
|
|
|
// found a left-brace, and we are in an array, object, or slice |
|
747
|
|
|
array_push($stk, array('what' => SERVICES_JSON_IN_OBJ, 'where' => $c, 'delim' => false)); |
|
748
|
|
|
//print("Found start of object at {$c}\n"); |
|
749
|
|
|
|
|
750
|
|
|
} elseif (($chrs{$c} == '}') && ($top['what'] == SERVICES_JSON_IN_OBJ)) { |
|
751
|
|
|
// found a right-brace, and we're in an object |
|
752
|
|
|
array_pop($stk); |
|
753
|
|
|
//print("Found end of object at {$c}: ".substr($chrs, $top['where'], (1 + $c - $top['where']))."\n"); |
|
754
|
|
|
|
|
755
|
|
|
} elseif (($substr_chrs_c_2 == '/*') && |
|
756
|
|
|
in_array($top['what'], array(SERVICES_JSON_SLICE, SERVICES_JSON_IN_ARR, SERVICES_JSON_IN_OBJ))) { |
|
757
|
|
|
// found a comment start, and we are in an array, object, or slice |
|
758
|
|
|
array_push($stk, array('what' => SERVICES_JSON_IN_CMT, 'where' => $c, 'delim' => false)); |
|
759
|
|
|
$c++; |
|
760
|
|
|
//print("Found start of comment at {$c}\n"); |
|
761
|
|
|
|
|
762
|
|
|
} elseif (($substr_chrs_c_2 == '*/') && ($top['what'] == SERVICES_JSON_IN_CMT)) { |
|
763
|
|
|
// found a comment end, and we're in one now |
|
764
|
|
|
array_pop($stk); |
|
765
|
|
|
$c++; |
|
766
|
|
|
|
|
767
|
|
|
for ($i = $top['where']; $i <= $c; ++$i) |
|
768
|
|
|
$chrs = substr_replace($chrs, ' ', $i, 1); |
|
769
|
|
|
|
|
770
|
|
|
//print("Found end of comment at {$c}: ".substr($chrs, $top['where'], (1 + $c - $top['where']))."\n"); |
|
771
|
|
|
|
|
772
|
|
|
} |
|
773
|
|
|
|
|
774
|
|
|
} |
|
775
|
|
|
|
|
776
|
|
|
if (reset($stk) == SERVICES_JSON_IN_ARR) { |
|
777
|
|
|
return $arr; |
|
778
|
|
|
|
|
779
|
|
|
} elseif (reset($stk) == SERVICES_JSON_IN_OBJ) { |
|
780
|
|
|
return $obj; |
|
781
|
|
|
|
|
782
|
|
|
} |
|
783
|
|
|
|
|
784
|
|
|
} |
|
785
|
|
|
} |
|
786
|
|
|
} |
|
787
|
|
|
|
|
788
|
|
|
/** |
|
789
|
|
|
* @todo Ultimately, this should just call PEAR::isError() |
|
790
|
|
|
*/ |
|
791
|
|
|
function isError($data, $code = null) |
|
|
|
|
|
|
792
|
|
|
{ |
|
793
|
|
|
if (class_exists('pear')) { |
|
794
|
|
|
return PEAR::isError($data, $code); |
|
|
|
|
|
|
795
|
|
|
} elseif (is_object($data) && (get_class($data) == 'services_json_error' || |
|
796
|
|
|
is_subclass_of($data, 'services_json_error'))) { |
|
797
|
|
|
return true; |
|
798
|
|
|
} |
|
799
|
|
|
|
|
800
|
|
|
return false; |
|
801
|
|
|
} |
|
802
|
|
|
} |
|
803
|
|
|
|
|
804
|
|
|
if (class_exists('PEAR_Error')) { |
|
805
|
|
|
|
|
806
|
|
|
class Services_JSON_Error extends PEAR_Error |
|
|
|
|
|
|
807
|
|
|
{ |
|
808
|
|
|
function Services_JSON_Error($message = 'unknown error', $code = null, |
|
|
|
|
|
|
809
|
|
|
$mode = null, $options = null, $userinfo = null) |
|
810
|
|
|
{ |
|
811
|
|
|
parent::PEAR_Error($message, $code, $mode, $options, $userinfo); |
|
812
|
|
|
} |
|
813
|
|
|
} |
|
814
|
|
|
|
|
815
|
|
|
} else { |
|
816
|
|
|
|
|
817
|
|
|
/** |
|
818
|
|
|
* @todo Ultimately, this class shall be descended from PEAR_Error |
|
819
|
|
|
*/ |
|
820
|
|
|
class Services_JSON_Error |
|
821
|
|
|
{ |
|
822
|
|
|
function Services_JSON_Error($message = 'unknown error', $code = null, |
|
|
|
|
|
|
823
|
|
|
$mode = null, $options = null, $userinfo = null) |
|
|
|
|
|
|
824
|
|
|
{ |
|
825
|
|
|
|
|
826
|
|
|
} |
|
827
|
|
|
} |
|
828
|
|
|
|
|
829
|
|
|
} |
|
830
|
|
|
|
|
831
|
|
|
|
XoopsModules25x /
songlist
Loading history...
Adding explicit visibility (
private,protected, orpublic) is generally recommend to communicate to other developers how, and from where this method is intended to be used.