Moxiecode_JSONReader::readAway() - Code Metrics - Inspection of "FIX Singleton creation" - silverstripe/silverstripe-framework - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Pull Request — 3.6 (#7850)

by Jono

created 2018-02-13 04:35 UTC

Moxiecode_JSONReader::readAway() B

↳ Parent: Moxiecode_JSONReader

Complexity

Conditions	5
Paths	3

Size

Total Lines	8
Code Lines	5

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
cc	5
eloc	5
nc	3
nop	0
dl	0
loc	8
rs	8.8571
c	0
b	0
f	0

<?php
/**
 * $Id: JSON.php 40 2007-06-18 11:43:15Z spocke $
 *
 * @package MCManager.utils
 * @author Moxiecode
 * @copyright Copyright � 2007, Moxiecode Systems AB, All rights reserved.
 */

define('JSON_BOOL', 1);
define('JSON_INT', 2);
define('JSON_STR', 3);
define('JSON_FLOAT', 4);
define('JSON_NULL', 5);
define('JSON_START_OBJ', 6);
define('JSON_END_OBJ', 7);
define('JSON_START_ARRAY', 8);
define('JSON_END_ARRAY', 9);
define('JSON_KEY', 10);
define('JSON_SKIP', 11);

define('JSON_IN_ARRAY', 30);
define('JSON_IN_OBJECT', 40);
define('JSON_IN_BETWEEN', 50);

class Moxiecode_JSONReader {
	var $_data, $_len, $_pos;
	var $_value, $_token;
	var $_location, $_lastLocations;
	var $_needProp;

	function Moxiecode_JSONReader($data) {
		$this->_data = $data;
		$this->_len = strlen($data);
		$this->_pos = -1;
		$this->_location = JSON_IN_BETWEEN;
		$this->_lastLocations = array();
		$this->_needProp = false;
	}

	function getToken() {
		return $this->_token;
	}

	function getLocation() {
		return $this->_location;
	}

	function getTokenName() {
		switch ($this->_token) {
			case JSON_BOOL:
				return 'JSON_BOOL';

			case JSON_INT:
				return 'JSON_INT';

			case JSON_STR:
				return 'JSON_STR';

			case JSON_FLOAT:
				return 'JSON_FLOAT';

			case JSON_NULL:
				return 'JSON_NULL';

			case JSON_START_OBJ:
				return 'JSON_START_OBJ';

			case JSON_END_OBJ:
				return 'JSON_END_OBJ';

			case JSON_START_ARRAY:
				return 'JSON_START_ARRAY';

			case JSON_END_ARRAY:
				return 'JSON_END_ARRAY';

			case JSON_KEY:
				return 'JSON_KEY';
		}

		return 'UNKNOWN';
	}

	function getValue() {
		return $this->_value;
	}

	function readToken() {
		$chr = $this->read();

		if ($chr != null) {
			switch ($chr) {
				case '[':
					$this->_lastLocation[] = $this->_location;
					$this->_location = JSON_IN_ARRAY;
					$this->_token = JSON_START_ARRAY;
					$this->_value = null;
					$this->readAway();
					return true;

				case ']':
					$this->_location = array_pop($this->_lastLocation);
					$this->_token = JSON_END_ARRAY;
					$this->_value = null;
					$this->readAway();

					if ($this->_location == JSON_IN_OBJECT)
						$this->_needProp = true;

					return true;

				case '{':
					$this->_lastLocation[] = $this->_location;
					$this->_location = JSON_IN_OBJECT;
					$this->_needProp = true;
					$this->_token = JSON_START_OBJ;
					$this->_value = null;
					$this->readAway();
					return true;

				case '}':
					$this->_location = array_pop($this->_lastLocation);
					$this->_token = JSON_END_OBJ;
					$this->_value = null;
					$this->readAway();

					if ($this->_location == JSON_IN_OBJECT)
						$this->_needProp = true;

					return true;

				// String
				case '"':
				case '\'':
					return $this->_readString($chr);

				// Null
				case 'n':
					return $this->_readNull();

				// Bool
				case 't':
				case 'f':
					return $this->_readBool($chr);

				default:
					// Is number
					if (is_numeric($chr) || $chr == '-' || $chr == '.')
						return $this->_readNumber($chr);

					return true;
			}
		}

		return false;
	}

	function _readBool($chr) {
		$this->_token = JSON_BOOL;
		$this->_value = $chr == 't';

		if ($chr == 't')
			$this->skip(3); // rue
		else
			$this->skip(4); // alse

		$this->readAway();

		if ($this->_location == JSON_IN_OBJECT && !$this->_needProp)
			$this->_needProp = true;

		return true;
	}

	function _readNull() {
		$this->_token = JSON_NULL;
		$this->_value = null;

		$this->skip(3); // ull
		$this->readAway();

		if ($this->_location == JSON_IN_OBJECT && !$this->_needProp)
			$this->_needProp = true;

		return true;
	}

	function _readString($quote) {
		$output = "";
		$this->_token = JSON_STR;
		$endString = false;

		while (($chr = $this->peek()) != -1) {
			switch ($chr) {
				case '\\':
					// Read away slash
					$this->read();

					// Read escape code
					$chr = $this->read();
					switch ($chr) {
							case 't':
								$output .= "\t";
								break;

							case 'b':
								$output .= "\b";
								break;

							case 'f':
								$output .= "\f";
								break;

							case 'r':
								$output .= "\r";
								break;

							case 'n':
								$output .= "\n";
								break;

							case 'u':
								$output .= $this->_int2utf8(hexdec($this->read(4)));
								break;

							default:
								$output .= $chr;
								break;
					}

					break;

					case '\'':
					case '"':
						if ($chr == $quote)
							$endString = true;

						$chr = $this->read();
						if ($chr != -1 && $chr != $quote)
							$output .= $chr;

						break;

					default:
						$output .= $this->read();
			}

			// String terminated
			if ($endString)
				break;
		}

		$this->readAway();
		$this->_value = $output;

		// Needed a property
		if ($this->_needProp) {
			$this->_token = JSON_KEY;
			$this->_needProp = false;
			return true;
		}

		if ($this->_location == JSON_IN_OBJECT && !$this->_needProp)
			$this->_needProp = true;

		return true;
	}

	function _int2utf8($int) {
		$int = intval($int);

		switch ($int) {
			case 0:
				return chr(0);

			case ($int & 0x7F):
				return chr($int);

			case ($int & 0x7FF):
				return chr(0xC0 | (($int >> 6) & 0x1F)) . chr(0x80 | ($int & 0x3F));

			case ($int & 0xFFFF):
				return chr(0xE0 | (($int >> 12) & 0x0F)) . chr(0x80 | (($int >> 6) & 0x3F)) . chr (0x80 | ($int & 0x3F));

			case ($int & 0x1FFFFF):
				return chr(0xF0 | ($int >> 18)) . chr(0x80 | (($int >> 12) & 0x3F)) . chr(0x80 | (($int >> 6) & 0x3F)) . chr(0x80 | ($int & 0x3F));
		}
	}

	function _readNumber($start) {
		$value = "";
		$isFloat = false;

		$this->_token = JSON_INT;
		$value .= $start;

		while (($chr = $this->peek()) != -1) {
			if (is_numeric($chr) || $chr == '-' || $chr == '.') {
				if ($chr == '.')
					$isFloat = true;

				$value .= $this->read();
			} else
				break;
		}

		$this->readAway();

		if ($isFloat) {
			$this->_token = JSON_FLOAT;
			$this->_value = floatval($value);
		} else
			$this->_value = intval($value);

		if ($this->_location == JSON_IN_OBJECT && !$this->_needProp)
			$this->_needProp = true;

		return true;
	}

	function readAway() {
		while (($chr = $this->peek()) != null) {
			if ($chr != ':' && $chr != ',' && $chr != ' ')
				return;

			$this->read();
		}
	}

	function read($len = 1) {
		if ($this->_pos < $this->_len) {
			if ($len > 1) {
				$str = substr($this->_data, $this->_pos + 1, $len);
				$this->_pos += $len;

				return $str;
			} else
				return $this->_data[++$this->_pos];
		}

		return null;
	}

	function skip($len) {
		$this->_pos += $len;
	}

	function peek() {
		if ($this->_pos < $this->_len)
			return $this->_data[$this->_pos + 1];

		return null;
	}
}

/**
 * This class handles JSON stuff.
 *
 * @package MCManager.utils
 */
class Moxiecode_JSON {
	function Moxiecode_JSON() {
	}

	function decode($input) {
		$reader = new Moxiecode_JSONReader($input);

		return $this->readValue($reader);
	}

	function readValue(&$reader) {
		$this->data = array();
		$this->parents = array();
		$this->cur =& $this->data;
		$key = null;
		$loc = JSON_IN_ARRAY;

		while ($reader->readToken()) {
			switch ($reader->getToken()) {
				case JSON_STR:
				case JSON_INT:
				case JSON_BOOL:
				case JSON_FLOAT:
				case JSON_NULL:
					switch ($reader->getLocation()) {
						case JSON_IN_OBJECT:
							$this->cur[$key] = $reader->getValue();
							break;

						case JSON_IN_ARRAY:
							$this->cur[] = $reader->getValue();
							break;

						default:
							return $reader->getValue();
					}
					break;

				case JSON_KEY:
					$key = $reader->getValue();
					break;

				case JSON_START_OBJ:
				case JSON_START_ARRAY:
					if ($loc == JSON_IN_OBJECT)
						$this->addArray($key);
					else
						$this->addArray(null);

					$cur =& $obj;

					$loc = $reader->getLocation();
					break;

				case JSON_END_OBJ:
				case JSON_END_ARRAY:
					$loc = $reader->getLocation();

					if (count($this->parents) > 0) {
						$this->cur =& $this->parents[count($this->parents) - 1];
						array_pop($this->parents);
					}
					break;
			}
		}

		return $this->data[0];
	}

	// This method was needed since PHP is crapy and doesn't have pointers/references
	function addArray($key) {
		$this->parents[] =& $this->cur;
		$ar = array();

		if ($key)
			$this->cur[$key] =& $ar;
		else
			$this->cur[] =& $ar;

		$this->cur =& $ar;
	}

	function getDelim($index, &$reader) {
		switch ($reader->getLocation()) {
			case JSON_IN_ARRAY:
			case JSON_IN_OBJECT:
				if ($index > 0)
					return ",";
				break;
		}

		return "";
	}

	function encode($input) {
		switch (gettype($input)) {
			case 'boolean':
				return $input ? 'true' : 'false';

			case 'integer':
				return (int) $input;

			case 'float':
			case 'double':
				return (float) $input;

			case 'NULL':
				return 'null';

			case 'string':
				return $this->encodeString($input);

			case 'array':
				return $this->_encodeArray($input);

			case 'object':
				return $this->_encodeArray(get_object_vars($input));
		}

		return '';
	}

	function encodeString($input) {
		// Needs to be escaped
		if (preg_match('/[^a-zA-Z0-9]/', $input)) {
			$output = '';

			for ($i=0; $i<strlen($input); $i++) {
				switch ($input[$i]) {
					case "\b":
						$output .= "\\b";
						break;

					case "\t":
						$output .= "\\t";
						break;

					case "\f":
						$output .= "\\f";
						break;

					case "\r":
						$output .= "\\r";
						break;

					case "\n":
						$output .= "\\n";
						break;

					case '\\':
						$output .= "\\\\";
						break;

					case '\'':
						$output .= "\\'";
						break;

					case '"':
						$output .= '\"';
						break;

					default:
						$byte = ord($input[$i]);

						if (($byte & 0xE0) == 0xC0) {
							$char = pack('C*', $byte, ord($input[$i + 1]));
							$i += 1;
							$output .= sprintf('\u%04s', bin2hex($this->_utf82utf16($char)));
						} if (($byte & 0xF0) == 0xE0) {
							$char = pack('C*', $byte, ord($input[$i + 1]), ord($input[$i + 2]));
							$i += 2;
							$output .= sprintf('\u%04s', bin2hex($this->_utf82utf16($char)));
						} if (($byte & 0xF8) == 0xF0) {
							$char = pack('C*', $byte, ord($input[$i + 1]), ord($input[$i + 2], ord($input[$i + 3])));
							$i += 3;
							$output .= sprintf('\u%04s', bin2hex($this->_utf82utf16($char)));
						} if (($byte & 0xFC) == 0xF8) {
							$char = pack('C*', $byte, ord($input[$i + 1]), ord($input[$i + 2], ord($input[$i + 3]), ord($input[$i + 4])));
							$i += 4;
							$output .= sprintf('\u%04s', bin2hex($this->_utf82utf16($char)));
						} if (($byte & 0xFE) == 0xFC) {
							$char = pack('C*', $byte, ord($input[$i + 1]), ord($input[$i + 2], ord($input[$i + 3]), ord($input[$i + 4]), ord($input[$i + 5])));
							$i += 5;
							$output .= sprintf('\u%04s', bin2hex($this->_utf82utf16($char)));
						} else if ($byte < 128)
							$output .= $input[$i];
				}
			}

			return '"' . $output . '"';
		}

		return '"' . $input . '"';
	}

	function _utf82utf16($utf8) {
		if (function_exists('mb_convert_encoding'))
			return mb_convert_encoding($utf8, 'UTF-16', 'UTF-8');

		switch (strlen($utf8)) {
			case 1:
				return $utf8;

			case 2:
				return chr(0x07 & (ord($utf8[0]) >> 2)) . chr((0xC0 & (ord($utf8[0]) << 6)) | (0x3F & ord($utf8[1])));

			case 3:
				return chr((0xF0 & (ord($utf8[0]) << 4)) | (0x0F & (ord($utf8[1]) >> 2))) . chr((0xC0 & (ord($utf8[1]) << 6)) | (0x7F & ord($utf8[2])));
		}

		return '';
	}

	function _encodeArray($input) {
		$output = '';
		$isIndexed = true;

		$keys = array_keys($input);
		for ($i=0; $i<count($keys); $i++) {
			if (!is_int($keys[$i])) {
				$output .= $this->encodeString($keys[$i]) . ':' . $this->encode($input[$keys[$i]]);
				$isIndexed = false;
			} else
				$output .= $this->encode($input[$keys[$i]]);

			if ($i != count($keys) - 1)
				$output .= ',';
		}

		return $isIndexed ? '[' . $output . ']' : '{' . $output . '}';
	}
}

?>


1			<?php
2			/**
3			* $Id: JSON.php 40 2007-06-18 11:43:15Z spocke $
4			*
5			* @package MCManager.utils
6			* @author Moxiecode
7			* @copyright Copyright � 2007, Moxiecode Systems AB, All rights reserved.
8			*/
9
10			define('JSON_BOOL', 1);
11			define('JSON_INT', 2);
12			define('JSON_STR', 3);
13			define('JSON_FLOAT', 4);
14			define('JSON_NULL', 5);
15			define('JSON_START_OBJ', 6);
16			define('JSON_END_OBJ', 7);
17			define('JSON_START_ARRAY', 8);
18			define('JSON_END_ARRAY', 9);
19			define('JSON_KEY', 10);
20			define('JSON_SKIP', 11);
21
22			define('JSON_IN_ARRAY', 30);
23			define('JSON_IN_OBJECT', 40);
24			define('JSON_IN_BETWEEN', 50);
25
26			class Moxiecode_JSONReader {
27			var $_data, $_len, $_pos;
28			var $_value, $_token;
29			var $_location, $_lastLocations;
30			var $_needProp;
31
32			function Moxiecode_JSONReader($data) {
33			$this->_data = $data;
34			$this->_len = strlen($data);
35			$this->_pos = -1;
36			$this->_location = JSON_IN_BETWEEN;
37			$this->_lastLocations = array();
38			$this->_needProp = false;
39			}
40
41			function getToken() {
42			return $this->_token;
43			}
44
45			function getLocation() {
46			return $this->_location;
47			}
48
49			function getTokenName() {
50			switch ($this->_token) {
51			case JSON_BOOL:
52			return 'JSON_BOOL';
53
54			case JSON_INT:
55			return 'JSON_INT';
56
57			case JSON_STR:
58			return 'JSON_STR';
59
60			case JSON_FLOAT:
61			return 'JSON_FLOAT';
62
63			case JSON_NULL:
64			return 'JSON_NULL';
65
66			case JSON_START_OBJ:
67			return 'JSON_START_OBJ';
68
69			case JSON_END_OBJ:
70			return 'JSON_END_OBJ';
71
72			case JSON_START_ARRAY:
73			return 'JSON_START_ARRAY';
74
75			case JSON_END_ARRAY:
76			return 'JSON_END_ARRAY';
77
78			case JSON_KEY:
79			return 'JSON_KEY';
80			}
81
82			return 'UNKNOWN';
83			}
84
85			function getValue() {
86			return $this->_value;
87			}
88
89			function readToken() {
90			$chr = $this->read();
91
92			if ($chr != null) {
93			switch ($chr) {
94			case '[':
95			$this->_lastLocation[] = $this->_location;
96			$this->_location = JSON_IN_ARRAY;
97			$this->_token = JSON_START_ARRAY;
98			$this->_value = null;
99			$this->readAway();
100			return true;
101
102			case ']':
103			$this->_location = array_pop($this->_lastLocation);
104			$this->_token = JSON_END_ARRAY;
105			$this->_value = null;
106			$this->readAway();
107
108			if ($this->_location == JSON_IN_OBJECT)
109			$this->_needProp = true;
110
111			return true;
112
113			case '{':
114			$this->_lastLocation[] = $this->_location;
115			$this->_location = JSON_IN_OBJECT;
116			$this->_needProp = true;
117			$this->_token = JSON_START_OBJ;
118			$this->_value = null;
119			$this->readAway();
120			return true;
121
122			case '}':
123			$this->_location = array_pop($this->_lastLocation);
124			$this->_token = JSON_END_OBJ;
125			$this->_value = null;
126			$this->readAway();
127
128			if ($this->_location == JSON_IN_OBJECT)
129			$this->_needProp = true;
130
131			return true;
132
133			// String
134			case '"':
135			case '\'':
136			return $this->_readString($chr);
137
138			// Null
139			case 'n':
140			return $this->_readNull();
141
142			// Bool
143			case 't':
144			case 'f':
145			return $this->_readBool($chr);
146
147			default:
148			// Is number
149			if (is_numeric($chr) \|\| $chr == '-' \|\| $chr == '.')
150			return $this->_readNumber($chr);
151
152			return true;
153			}
154			}
155
156			return false;
157			}
158
159			function _readBool($chr) {
160			$this->_token = JSON_BOOL;
161			$this->_value = $chr == 't';
162
163			if ($chr == 't')
164			$this->skip(3); // rue
165			else
166			$this->skip(4); // alse
167
168			$this->readAway();
169
170			if ($this->_location == JSON_IN_OBJECT && !$this->_needProp)
171			$this->_needProp = true;
172
173			return true;
174			}
175
176			function _readNull() {
177			$this->_token = JSON_NULL;
178			$this->_value = null;
179
180			$this->skip(3); // ull
181			$this->readAway();
182
183			if ($this->_location == JSON_IN_OBJECT && !$this->_needProp)
184			$this->_needProp = true;
185
186			return true;
187			}
188
189			function _readString($quote) {
190			$output = "";
191			$this->_token = JSON_STR;
192			$endString = false;
193
194			while (($chr = $this->peek()) != -1) {
195			switch ($chr) {
196			case '\\':
197			// Read away slash
198			$this->read();
199
200			// Read escape code
201			$chr = $this->read();
202			switch ($chr) {
203			case 't':
204			$output .= "\t";
205			break;
206
207			case 'b':
208			$output .= "\b";
209			break;
210
211			case 'f':
212			$output .= "\f";
213			break;
214
215			case 'r':
216			$output .= "\r";
217			break;
218
219			case 'n':
220			$output .= "\n";
221			break;
222
223			case 'u':
224			$output .= $this->_int2utf8(hexdec($this->read(4)));
225			break;
226
227			default:
228			$output .= $chr;
229			break;
230			}
231
232			break;
233
234			case '\'':
235			case '"':
236			if ($chr == $quote)
237			$endString = true;
238
239			$chr = $this->read();
240			if ($chr != -1 && $chr != $quote)
241			$output .= $chr;
242
243			break;
244
245			default:
246			$output .= $this->read();
247			}
248
249			// String terminated
250			if ($endString)
251			break;
252			}
253
254			$this->readAway();
255			$this->_value = $output;
256
257			// Needed a property
258			if ($this->_needProp) {
259			$this->_token = JSON_KEY;
260			$this->_needProp = false;
261			return true;
262			}
263
264			if ($this->_location == JSON_IN_OBJECT && !$this->_needProp)
265			$this->_needProp = true;
266
267			return true;
268			}
269
270			function _int2utf8($int) {
271			$int = intval($int);
272
273			switch ($int) {
274			case 0:
275			return chr(0);
276
277			case ($int & 0x7F):
278			return chr($int);
279
280			case ($int & 0x7FF):
281			return chr(0xC0 \| (($int >> 6) & 0x1F)) . chr(0x80 \| ($int & 0x3F));
282
283			case ($int & 0xFFFF):
284			return chr(0xE0 \| (($int >> 12) & 0x0F)) . chr(0x80 \| (($int >> 6) & 0x3F)) . chr (0x80 \| ($int & 0x3F));
285
286			case ($int & 0x1FFFFF):
287			return chr(0xF0 \| ($int >> 18)) . chr(0x80 \| (($int >> 12) & 0x3F)) . chr(0x80 \| (($int >> 6) & 0x3F)) . chr(0x80 \| ($int & 0x3F));
288			}
289			}
290
291			function _readNumber($start) {
292			$value = "";
293			$isFloat = false;
294
295			$this->_token = JSON_INT;
296			$value .= $start;
297
298			while (($chr = $this->peek()) != -1) {
299			if (is_numeric($chr) \|\| $chr == '-' \|\| $chr == '.') {
300			if ($chr == '.')
301			$isFloat = true;
302
303			$value .= $this->read();
304			} else
305			break;
306			}
307
308			$this->readAway();
309
310			if ($isFloat) {
311			$this->_token = JSON_FLOAT;
312			$this->_value = floatval($value);
313			} else
314			$this->_value = intval($value);
315
316			if ($this->_location == JSON_IN_OBJECT && !$this->_needProp)
317			$this->_needProp = true;
318
319			return true;
320			}
321
322			function readAway() {
323			while (($chr = $this->peek()) != null) {
324			if ($chr != ':' && $chr != ',' && $chr != ' ')
325			return;
326
327			$this->read();
328			}
329			}
330
331			function read($len = 1) {
332			if ($this->_pos < $this->_len) {
333			if ($len > 1) {
334			$str = substr($this->_data, $this->_pos + 1, $len);
335			$this->_pos += $len;
336
337			return $str;
338			} else
339			return $this->_data[++$this->_pos];
340			}
341
342			return null;
343			}
344
345			function skip($len) {
346			$this->_pos += $len;
347			}
348
349			function peek() {
350			if ($this->_pos < $this->_len)
351			return $this->_data[$this->_pos + 1];
352
353			return null;
354			}
355			}
356
357			/**
358			* This class handles JSON stuff.
359			*
360			* @package MCManager.utils
361			*/
362			class Moxiecode_JSON {
363			function Moxiecode_JSON() {
364			}
365
366			function decode($input) {
367			$reader = new Moxiecode_JSONReader($input);
368
369			return $this->readValue($reader);
370			}
371
372			function readValue(&$reader) {
373			$this->data = array();
374			$this->parents = array();
375			$this->cur =& $this->data;
376			$key = null;
377			$loc = JSON_IN_ARRAY;
378
379			while ($reader->readToken()) {
380			switch ($reader->getToken()) {
381			case JSON_STR:
382			case JSON_INT:
383			case JSON_BOOL:
384			case JSON_FLOAT:
385			case JSON_NULL:
386			switch ($reader->getLocation()) {
387			case JSON_IN_OBJECT:
388			$this->cur[$key] = $reader->getValue();
389			break;
390
391			case JSON_IN_ARRAY:
392			$this->cur[] = $reader->getValue();
393			break;
394
395			default:
396			return $reader->getValue();
397			}
398			break;
399
400			case JSON_KEY:
401			$key = $reader->getValue();
402			break;
403
404			case JSON_START_OBJ:
405			case JSON_START_ARRAY:
406			if ($loc == JSON_IN_OBJECT)
407			$this->addArray($key);
408			else
409			$this->addArray(null);
410
411			$cur =& $obj;
412
413			$loc = $reader->getLocation();
414			break;
415
416			case JSON_END_OBJ:
417			case JSON_END_ARRAY:
418			$loc = $reader->getLocation();
419
420			if (count($this->parents) > 0) {
421			$this->cur =& $this->parents[count($this->parents) - 1];
422			array_pop($this->parents);
423			}
424			break;
425			}
426			}
427
428			return $this->data[0];
429			}
430
431			// This method was needed since PHP is crapy and doesn't have pointers/references
432			function addArray($key) {
433			$this->parents[] =& $this->cur;
434			$ar = array();
435
436			if ($key)
437			$this->cur[$key] =& $ar;
438			else
439			$this->cur[] =& $ar;
440
441			$this->cur =& $ar;
442			}
443
444			function getDelim($index, &$reader) {
445			switch ($reader->getLocation()) {
446			case JSON_IN_ARRAY:
447			case JSON_IN_OBJECT:
448			if ($index > 0)
449			return ",";
450			break;
451			}
452
453			return "";
454			}
455
456			function encode($input) {
457			switch (gettype($input)) {
458			case 'boolean':
459			return $input ? 'true' : 'false';
460
461			case 'integer':
462			return (int) $input;
463
464			case 'float':
465			case 'double':
466			return (float) $input;
467
468			case 'NULL':
469			return 'null';
470
471			case 'string':
472			return $this->encodeString($input);
473
474			case 'array':
475			return $this->_encodeArray($input);
476
477			case 'object':
478			return $this->_encodeArray(get_object_vars($input));
479			}
480
481			return '';
482			}
483
484			function encodeString($input) {
485			// Needs to be escaped
486			if (preg_match('/[^a-zA-Z0-9]/', $input)) {
487			$output = '';
488
489			for ($i=0; $i<strlen($input); $i++) {
490			switch ($input[$i]) {
491			case "\b":
492			$output .= "\\b";
493			break;
494
495			case "\t":
496			$output .= "\\t";
497			break;
498
499			case "\f":
500			$output .= "\\f";
501			break;
502
503			case "\r":
504			$output .= "\\r";
505			break;
506
507			case "\n":
508			$output .= "\\n";
509			break;
510
511			case '\\':
512			$output .= "\\\\";
513			break;
514
515			case '\'':
516			$output .= "\\'";
517			break;
518
519			case '"':
520			$output .= '\"';
521			break;
522
523			default:
524			$byte = ord($input[$i]);
525
526			if (($byte & 0xE0) == 0xC0) {
527			$char = pack('C*', $byte, ord($input[$i + 1]));
528			$i += 1;
529			$output .= sprintf('\u%04s', bin2hex($this->_utf82utf16($char)));
530			} if (($byte & 0xF0) == 0xE0) {
531			$char = pack('C*', $byte, ord($input[$i + 1]), ord($input[$i + 2]));
532			$i += 2;
533			$output .= sprintf('\u%04s', bin2hex($this->_utf82utf16($char)));
534			} if (($byte & 0xF8) == 0xF0) {
535			$char = pack('C*', $byte, ord($input[$i + 1]), ord($input[$i + 2], ord($input[$i + 3])));
536			$i += 3;
537			$output .= sprintf('\u%04s', bin2hex($this->_utf82utf16($char)));
538			} if (($byte & 0xFC) == 0xF8) {
539			$char = pack('C*', $byte, ord($input[$i + 1]), ord($input[$i + 2], ord($input[$i + 3]), ord($input[$i + 4])));
540			$i += 4;
541			$output .= sprintf('\u%04s', bin2hex($this->_utf82utf16($char)));
542			} if (($byte & 0xFE) == 0xFC) {
543			$char = pack('C*', $byte, ord($input[$i + 1]), ord($input[$i + 2], ord($input[$i + 3]), ord($input[$i + 4]), ord($input[$i + 5])));
544			$i += 5;
545			$output .= sprintf('\u%04s', bin2hex($this->_utf82utf16($char)));
546			} else if ($byte < 128)
547			$output .= $input[$i];
548			}
549			}
550
551			return '"' . $output . '"';
552			}
553
554			return '"' . $input . '"';
555			}
556
557			function _utf82utf16($utf8) {
558			if (function_exists('mb_convert_encoding'))
559			return mb_convert_encoding($utf8, 'UTF-16', 'UTF-8');
560
561			switch (strlen($utf8)) {
562			case 1:
563			return $utf8;
564
565			case 2:
566			return chr(0x07 & (ord($utf8[0]) >> 2)) . chr((0xC0 & (ord($utf8[0]) << 6)) \| (0x3F & ord($utf8[1])));
567
568			case 3:
569			return chr((0xF0 & (ord($utf8[0]) << 4)) \| (0x0F & (ord($utf8[1]) >> 2))) . chr((0xC0 & (ord($utf8[1]) << 6)) \| (0x7F & ord($utf8[2])));
570			}
571
572			return '';
573			}
574
575			function _encodeArray($input) {
576			$output = '';
577			$isIndexed = true;
578
579			$keys = array_keys($input);
580			for ($i=0; $i<count($keys); $i++) {
581			if (!is_int($keys[$i])) {
582			$output .= $this->encodeString($keys[$i]) . ':' . $this->encode($input[$keys[$i]]);
583			$isIndexed = false;
584			} else
585			$output .= $this->encode($input[$keys[$i]]);
586
587			if ($i != count($keys) - 1)
588			$output .= ',';
589			}
590
591			return $isIndexed ? '[' . $output . ']' : '{' . $output . '}';
592			}
593			}
594
595			?>
596

silverstripe / silverstripe-framework

Pull Request — 3.6 (#7850)

Moxiecode_JSONReader::readAway() B

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