New file |
0,0 → 1,794 |
<?php |
/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */ |
|
/** |
* Converts to and from JSON format. |
* |
* JSON (JavaScript Object Notation) is a lightweight data-interchange |
* format. It is easy for humans to read and write. It is easy for machines |
* to parse and generate. It is based on a subset of the JavaScript |
* Programming Language, Standard ECMA-262 3rd Edition - December 1999. |
* This feature can also be found in Python. JSON is a text format that is |
* completely language independent but uses conventions that are familiar |
* to programmers of the C-family of languages, including C, C++, C#, Java, |
* JavaScript, Perl, TCL, and many others. These properties make JSON an |
* ideal data-interchange language. |
* |
* This package provides a simple encoder and decoder for JSON notation. It |
* is intended for use with client-side Javascript applications that make |
* use of HTTPRequest to perform server communication functions - data can |
* be encoded into JSON notation for use in a client-side javascript, or |
* decoded from incoming Javascript requests. JSON format is native to |
* Javascript, and can be directly eval()'ed with no further parsing |
* overhead |
* |
* All strings should be in ASCII or UTF-8 format! |
* |
* LICENSE: Redistribution and use in source and binary forms, with or |
* without modification, are permitted provided that the following |
* conditions are met: Redistributions of source code must retain the |
* above copyright notice, this list of conditions and the following |
* disclaimer. Redistributions in binary form must reproduce the above |
* copyright notice, this list of conditions and the following disclaimer |
* in the documentation and/or other materials provided with the |
* distribution. |
* |
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED |
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN |
* NO EVENT SHALL CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, |
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, |
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS |
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR |
* TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE |
* USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH |
* DAMAGE. |
* |
* @category |
* @package Services_JSON |
* @author Michal Migurski <mike-json@teczno.com> |
* @author Matt Knapp <mdknapp[at]gmail[dot]com> |
* @author Brett Stimmerman <brettstimmerman[at]gmail[dot]com> |
* @copyright 2005 Michal Migurski |
* @license http://www.opensource.org/licenses/bsd-license.php |
* @link http://pear.php.net/pepr/pepr-proposal-show.php?id=198 |
*/ |
|
/** |
* Marker constant for Services_JSON::decode(), used to flag stack state |
*/ |
define('SERVICES_JSON_SLICE', 1); |
|
/** |
* Marker constant for Services_JSON::decode(), used to flag stack state |
*/ |
define('SERVICES_JSON_IN_STR', 2); |
|
/** |
* Marker constant for Services_JSON::decode(), used to flag stack state |
*/ |
define('SERVICES_JSON_IN_ARR', 4); |
|
/** |
* Marker constant for Services_JSON::decode(), used to flag stack state |
*/ |
define('SERVICES_JSON_IN_OBJ', 8); |
|
/** |
* Marker constant for Services_JSON::decode(), used to flag stack state |
*/ |
define('SERVICES_JSON_IN_CMT', 16); |
|
/** |
* Behavior switch for Services_JSON::decode() |
*/ |
define('SERVICES_JSON_LOOSE_TYPE', 10); |
|
/** |
* Behavior switch for Services_JSON::decode() |
*/ |
define('SERVICES_JSON_STRICT_TYPE', 11); |
|
/** |
* Encodings |
*/ |
define('SERVICES_JSON_ISO_8859_1', 'iso-8859-1'); |
define('SERVICES_JSON_UTF_8', 'utf-8'); |
|
/** |
* Converts to and from JSON format. |
* |
* Brief example of use: |
* |
* <code> |
* // create a new instance of Services_JSON |
* $json = new Services_JSON(); |
* |
* // convert a complexe value to JSON notation, and send it to the browser |
* $value = array('foo', 'bar', array(1, 2, 'baz'), array(3, array(4))); |
* $output = $json->encode($value); |
* |
* print($output); |
* // prints: ["foo","bar",[1,2,"baz"],[3,[4]]] |
* |
* // accept incoming POST data, assumed to be in JSON notation |
* $input = file_get_contents('php://input', 1000000); |
* $value = $json->decode($input); |
* </code> |
*/ |
class Services_JSON |
{ |
/** |
* constructs a new JSON instance |
* |
//>> SJM2005 |
* @param string $encoding Strings are input/output in this encoding |
* @param int $encode Encode input is expected in this character encoding |
//<< SJM2005 |
* |
* @param int $use object behavior: when encoding or decoding, |
* be loose or strict about object/array usage |
* |
* possible values: |
* - SERVICES_JSON_STRICT_TYPE: strict typing, default. |
* "{...}" syntax creates objects in decode(). |
* - SERVICES_JSON_LOOSE_TYPE: loose typing. |
* "{...}" syntax creates associative arrays in decode(). |
*/ |
function Services_JSON($encoding = SERVICES_JSON_UTF_8, $use = SERVICES_JSON_STRICT_TYPE) |
{ |
//>> SJM2005 |
$this->encoding = $encoding; |
//<< SJM2005 |
|
$this->use = $use; |
} |
|
/** |
* convert a string from one UTF-16 char to one UTF-8 char |
* |
* Normally should be handled by mb_convert_encoding, but |
* provides a slower PHP-only method for installations |
* that lack the multibye string extension. |
* |
* @param string $utf16 UTF-16 character |
* @return string UTF-8 character |
* @access private |
*/ |
function utf162utf8($utf16) |
{ |
// oh please oh please oh please oh please oh please |
if(function_exists('mb_convert_encoding')) |
return mb_convert_encoding($utf16, 'UTF-8', 'UTF-16'); |
|
$bytes = (ord($utf16{0}) << 8) | ord($utf16{1}); |
|
switch(true) { |
case ((0x7F & $bytes) == $bytes): |
// this case should never be reached, because we are in ASCII range |
// see: http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8 |
return chr(0x7F & $bytes); |
|
case (0x07FF & $bytes) == $bytes: |
// return a 2-byte UTF-8 character |
// see: http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8 |
return chr(0xC0 | (($bytes >> 6) & 0x1F)) |
. chr(0x80 | ($bytes & 0x3F)); |
|
case (0xFFFF & $bytes) == $bytes: |
// return a 3-byte UTF-8 character |
// see: http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8 |
return chr(0xE0 | (($bytes >> 12) & 0x0F)) |
. chr(0x80 | (($bytes >> 6) & 0x3F)) |
. chr(0x80 | ($bytes & 0x3F)); |
} |
|
// ignoring UTF-32 for now, sorry |
return ''; |
} |
|
/** |
* convert a string from one UTF-8 char to one UTF-16 char |
* |
* Normally should be handled by mb_convert_encoding, but |
* provides a slower PHP-only method for installations |
* that lack the multibye string extension. |
* |
* @param string $utf8 UTF-8 character |
* @return string UTF-16 character |
* @access private |
*/ |
function utf82utf16($utf8) |
{ |
// oh please oh please oh please oh please oh please |
if(function_exists('mb_convert_encoding')) |
return mb_convert_encoding($utf8, 'UTF-16', 'UTF-8'); |
|
switch(strlen($utf8)) { |
case 1: |
// this case should never be reached, because we are in ASCII range |
// see: http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8 |
return $ut8; |
|
case 2: |
// return a UTF-16 character from a 2-byte UTF-8 char |
// see: http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8 |
return chr(0x07 & (ord($utf8{0}) >> 2)) |
. chr((0xC0 & (ord($utf8{0}) << 6)) |
| (0x3F & ord($utf8{1}))); |
|
case 3: |
// return a UTF-16 character from a 3-byte UTF-8 char |
// see: http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8 |
return chr((0xF0 & (ord($utf8{0}) << 4)) |
| (0x0F & (ord($utf8{1}) >> 2))) |
. chr((0xC0 & (ord($utf8{1}) << 6)) |
| (0x7F & ord($utf8{2}))); |
} |
|
// ignoring UTF-32 for now, sorry |
return ''; |
} |
|
/** |
* encodes an arbitrary variable into JSON format |
* |
* @param mixed $var any number, boolean, string, array, or object to be encoded. |
* see argument 1 to Services_JSON() above for array-parsing behavior. |
* if var is a strng, note that encode() always expects it |
* to be in ASCII or UTF-8 format! |
* |
* @return string JSON string representation of input var |
* @access public |
*/ |
function encode($var) |
{ |
switch (gettype($var)) { |
case 'boolean': |
return $var ? 'true' : 'false'; |
|
case 'NULL': |
return 'null'; |
|
case 'integer': |
return (int) $var; |
|
case 'double': |
case 'float': |
return (float) $var; |
|
case 'string': |
//>> SJM2005 |
if ($this->encoding == SERVICES_JSON_UTF_8) |
; |
else if ($this->encoding == SERVICES_JSON_ISO_8859_1) |
$var = utf8_encode($var); |
else if (!function_exists('mb_convert_encoding')) |
die('Requested encoding requires mb_strings extension.'); |
else |
$var = mb_convert_encoding($var, "utf-8", $this->encoding); |
//<< SJM2005 |
|
// STRINGS ARE EXPECTED TO BE IN ASCII OR UTF-8 FORMAT |
$ascii = ''; |
$strlen_var = strlen($var); |
|
/* |
* Iterate over every character in the string, |
* escaping with a slash or encoding to UTF-8 where necessary |
*/ |
for ($c = 0; $c < $strlen_var; ++$c) { |
|
$ord_var_c = ord($var{$c}); |
|
switch (true) { |
case $ord_var_c == 0x08: |
$ascii .= '\b'; |
break; |
case $ord_var_c == 0x09: |
$ascii .= '\t'; |
break; |
case $ord_var_c == 0x0A: |
$ascii .= '\n'; |
break; |
case $ord_var_c == 0x0C: |
$ascii .= '\f'; |
break; |
case $ord_var_c == 0x0D: |
$ascii .= '\r'; |
break; |
|
case $ord_var_c == 0x22: |
case $ord_var_c == 0x2F: |
case $ord_var_c == 0x5C: |
// double quote, slash, slosh |
$ascii .= '\\'.$var{$c}; |
break; |
|
case (($ord_var_c >= 0x20) && ($ord_var_c <= 0x7F)): |
// characters U-00000000 - U-0000007F (same as ASCII) |
$ascii .= $var{$c}; |
break; |
|
case (($ord_var_c & 0xE0) == 0xC0): |
// characters U-00000080 - U-000007FF, mask 110XXXXX |
// see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8 |
$char = pack('C*', $ord_var_c, ord($var{$c + 1})); |
$c += 1; |
$utf16 = $this->utf82utf16($char); |
$ascii .= sprintf('\u%04s', bin2hex($utf16)); |
break; |
|
case (($ord_var_c & 0xF0) == 0xE0): |
// characters U-00000800 - U-0000FFFF, mask 1110XXXX |
// see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8 |
$char = pack('C*', $ord_var_c, |
ord($var{$c + 1}), |
ord($var{$c + 2})); |
$c += 2; |
$utf16 = $this->utf82utf16($char); |
$ascii .= sprintf('\u%04s', bin2hex($utf16)); |
break; |
|
case (($ord_var_c & 0xF8) == 0xF0): |
// characters U-00010000 - U-001FFFFF, mask 11110XXX |
// see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8 |
$char = pack('C*', $ord_var_c, |
ord($var{$c + 1}), |
ord($var{$c + 2}), |
ord($var{$c + 3})); |
$c += 3; |
$utf16 = $this->utf82utf16($char); |
$ascii .= sprintf('\u%04s', bin2hex($utf16)); |
break; |
|
case (($ord_var_c & 0xFC) == 0xF8): |
// characters U-00200000 - U-03FFFFFF, mask 111110XX |
// see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8 |
$char = pack('C*', $ord_var_c, |
ord($var{$c + 1}), |
ord($var{$c + 2}), |
ord($var{$c + 3}), |
ord($var{$c + 4})); |
$c += 4; |
$utf16 = $this->utf82utf16($char); |
$ascii .= sprintf('\u%04s', bin2hex($utf16)); |
break; |
|
case (($ord_var_c & 0xFE) == 0xFC): |
// characters U-04000000 - U-7FFFFFFF, mask 1111110X |
// see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8 |
$char = pack('C*', $ord_var_c, |
ord($var{$c + 1}), |
ord($var{$c + 2}), |
ord($var{$c + 3}), |
ord($var{$c + 4}), |
ord($var{$c + 5})); |
$c += 5; |
$utf16 = $this->utf82utf16($char); |
$ascii .= sprintf('\u%04s', bin2hex($utf16)); |
break; |
} |
} |
|
return '"'.$ascii.'"'; |
|
case 'array': |
/* |
* As per JSON spec if any array key is not an integer |
* we must treat the the whole array as an object. We |
* also try to catch a sparsely populated associative |
* array with numeric keys here because some JS engines |
* will create an array with empty indexes up to |
* max_index which can cause memory issues and because |
* the keys, which may be relevant, will be remapped |
* otherwise. |
* |
* As per the ECMA and JSON specification an object may |
* have any string as a property. Unfortunately due to |
* a hole in the ECMA specification if the key is a |
* ECMA reserved word or starts with a digit the |
* parameter is only accessible using ECMAScript's |
* bracket notation. |
*/ |
|
// treat as a JSON object |
if (is_array($var) && count($var) && (array_keys($var) !== range(0, sizeof($var) - 1))) { |
return '{' . |
join(',', array_map(array($this, 'name_value'), |
array_keys($var), |
array_values($var))) |
. '}'; |
} |
|
// treat it like a regular array |
return '[' . join(',', array_map(array($this, 'encode'), $var)) . ']'; |
|
case 'object': |
$vars = get_object_vars($var); |
return '{' . |
join(',', array_map(array($this, 'name_value'), |
array_keys($vars), |
array_values($vars))) |
. '}'; |
|
default: |
return ''; |
} |
} |
|
/** |
* array-walking function for use in generating JSON-formatted name-value pairs |
* |
* @param string $name name of key to use |
* @param mixed $value reference to an array element to be encoded |
* |
* @return string JSON-formatted name-value pair, like '"name":value' |
* @access private |
*/ |
function name_value($name, $value) |
{ |
return $this->encode(strval($name)) . ':' . $this->encode($value); |
} |
|
/** |
* reduce a string by removing leading and trailing comments and whitespace |
* |
* @param $str string string value to strip of comments and whitespace |
* |
* @return string string value stripped of comments and whitespace |
* @access private |
*/ |
function reduce_string($str) |
{ |
$str = preg_replace(array( |
|
// eliminate single line comments in '// ...' form |
'#^\s*//(.+)$#m', |
|
// eliminate multi-line comments in '/* ... */' form, at start of string |
'#^\s*/\*(.+)\*/#Us', |
|
// eliminate multi-line comments in '/* ... */' form, at end of string |
'#/\*(.+)\*/\s*$#Us' |
|
), '', $str); |
|
// eliminate extraneous space |
return trim($str); |
} |
|
/** |
* decodes a JSON string into appropriate variable |
* |
* @param string $str JSON-formatted string |
* |
* @return mixed number, boolean, string, array, or object |
* corresponding to given JSON input string. |
* See argument 1 to Services_JSON() above for object-output behavior. |
* Note that decode() always returns strings |
* in ASCII or UTF-8 format! |
* @access public |
*/ |
function decode($str) |
{ |
$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, $c, 6)): |
//echo ' matching single escaped unicode character from ' . substr($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); |
$c += 5; |
break; |
|
} |
|
} |
|
//>> SJM2005 |
if ($this->encoding == SERVICES_JSON_UTF_8) |
return $utf8; |
if ($this->encoding == SERVICES_JSON_ISO_8859_1) |
return utf8_decode($utf8); |
else if (!function_exists('mb_convert_encoding')) |
die('Requested encoding requires mb_strings extension.'); |
else |
return mb_convert_encoding($utf8, $this->encoding, SERVICES_JSON_UTF_8); |
//<< SJM2005 |
|
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 {$c}\n"); |
|
//>> SAO2006 |
/*} elseif (($chrs{$c} == $top['delim']) && |
($top['what'] == SERVICES_JSON_IN_STR) && |
(($chrs{$c - 1} != '\\') || |
($chrs{$c - 1} == '\\' && $chrs{$c - 2} == '\\'))) {*/ |
} elseif ($chrs{$c} == $top['delim'] && |
$top['what'] == SERVICES_JSON_IN_STR) { |
//print("Found potential end of string at {$c}\n"); |
// verify quote is not escaped: it has no or an even number of \\ before it. |
for ($i=0; ($chrs{$c - ($i+1)} == '\\'); $i++); |
/*$i = 0; |
while ( $chrs{$c - ($i+1)} == '\\') |
$i++;*/ |
//print("Found {$i} \ before delim\n"); |
if ($i % 2 != 0) |
{ |
//print("delim escaped, not end of string\n"); |
continue; |
} |
//>> SAO2006 |
// found a quote, we're in a string, and it's not escaped |
array_pop($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 $obj; |
|
} |
|
} |
} |
} |
|
} |
|
/*function hex($s) |
{ |
$l = strlen($s); |
for ($i=0; $i < $l; $i++) |
//echo '['.(ord($s{$i})).']'; |
echo '['.bin2hex($s{$i}).']'; |
} |
|
//$d = '["hello world\\""]'; |
$d = '["\\\\\\"hello world,\\\\\\""]'; |
//$d = '["\\\\", "\\\\"]'; |
hex($d); |
$test = new Services_JSON(); |
echo('<pre>'); |
print_r($d . "\n"); |
print_r($test->decode($d)); |
echo('</pre>'); |
*/ |
?> |