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Diffstat (limited to 'vendors/uploadify/com/adobe/serialization/json/JSONEncoder.as')
| -rw-r--r-- | vendors/uploadify/com/adobe/serialization/json/JSONEncoder.as | 299 |
1 files changed, 0 insertions, 299 deletions
diff --git a/vendors/uploadify/com/adobe/serialization/json/JSONEncoder.as b/vendors/uploadify/com/adobe/serialization/json/JSONEncoder.as deleted file mode 100644 index 44469d053..000000000 --- a/vendors/uploadify/com/adobe/serialization/json/JSONEncoder.as +++ /dev/null @@ -1,299 +0,0 @@ -/*
- Copyright (c) 2008, Adobe Systems Incorporated
- All rights reserved.
-
- 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.
-
- * Neither the name of Adobe Systems Incorporated nor the names of its
- contributors may be used to endorse or promote products derived from
- this software without specific prior written permission.
-
- THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "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 THE COPYRIGHT OWNER OR
- 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.
-*/
-
-package com.adobe.serialization.json
-{
-
- import flash.utils.describeType;
-
- public class JSONEncoder {
-
- /** The string that is going to represent the object we're encoding */
- private var jsonString:String;
-
- /**
- * Creates a new JSONEncoder.
- *
- * @param o The object to encode as a JSON string
- * @langversion ActionScript 3.0
- * @playerversion Flash 9.0
- * @tiptext
- */
- public function JSONEncoder( value:* ) {
- jsonString = convertToString( value );
-
- }
-
- /**
- * Gets the JSON string from the encoder.
- *
- * @return The JSON string representation of the object
- * that was passed to the constructor
- * @langversion ActionScript 3.0
- * @playerversion Flash 9.0
- * @tiptext
- */
- public function getString():String {
- return jsonString;
- }
-
- /**
- * Converts a value to it's JSON string equivalent.
- *
- * @param value The value to convert. Could be any
- * type (object, number, array, etc)
- */
- private function convertToString( value:* ):String {
-
- // determine what value is and convert it based on it's type
- if ( value is String ) {
-
- // escape the string so it's formatted correctly
- return escapeString( value as String );
-
- } else if ( value is Number ) {
-
- // only encode numbers that finate
- return isFinite( value as Number) ? value.toString() : "null";
-
- } else if ( value is Boolean ) {
-
- // convert boolean to string easily
- return value ? "true" : "false";
-
- } else if ( value is Array ) {
-
- // call the helper method to convert an array
- return arrayToString( value as Array );
-
- } else if ( value is Object && value != null ) {
-
- // call the helper method to convert an object
- return objectToString( value );
- }
- return "null";
- }
-
- /**
- * Escapes a string accoding to the JSON specification.
- *
- * @param str The string to be escaped
- * @return The string with escaped special characters
- * according to the JSON specification
- */
- private function escapeString( str:String ):String {
- // create a string to store the string's jsonstring value
- var s:String = "";
- // current character in the string we're processing
- var ch:String;
- // store the length in a local variable to reduce lookups
- var len:Number = str.length;
-
- // loop over all of the characters in the string
- for ( var i:int = 0; i < len; i++ ) {
-
- // examine the character to determine if we have to escape it
- ch = str.charAt( i );
- switch ( ch ) {
-
- case '"': // quotation mark
- s += "\\\"";
- break;
-
- //case '/': // solidus
- // s += "\\/";
- // break;
-
- case '\\': // reverse solidus
- s += "\\\\";
- break;
-
- case '\b': // bell
- s += "\\b";
- break;
-
- case '\f': // form feed
- s += "\\f";
- break;
-
- case '\n': // newline
- s += "\\n";
- break;
-
- case '\r': // carriage return
- s += "\\r";
- break;
-
- case '\t': // horizontal tab
- s += "\\t";
- break;
-
- default: // everything else
-
- // check for a control character and escape as unicode
- if ( ch < ' ' ) {
- // get the hex digit(s) of the character (either 1 or 2 digits)
- var hexCode:String = ch.charCodeAt( 0 ).toString( 16 );
-
- // ensure that there are 4 digits by adjusting
- // the # of zeros accordingly.
- var zeroPad:String = hexCode.length == 2 ? "00" : "000";
-
- // create the unicode escape sequence with 4 hex digits
- s += "\\u" + zeroPad + hexCode;
- } else {
-
- // no need to do any special encoding, just pass-through
- s += ch;
-
- }
- } // end switch
-
- } // end for loop
-
- return "\"" + s + "\"";
- }
-
- /**
- * Converts an array to it's JSON string equivalent
- *
- * @param a The array to convert
- * @return The JSON string representation of <code>a</code>
- */
- private function arrayToString( a:Array ):String {
- // create a string to store the array's jsonstring value
- var s:String = "";
-
- // loop over the elements in the array and add their converted
- // values to the string
- for ( var i:int = 0; i < a.length; i++ ) {
- // when the length is 0 we're adding the first element so
- // no comma is necessary
- if ( s.length > 0 ) {
- // we've already added an element, so add the comma separator
- s += ","
- }
-
- // convert the value to a string
- s += convertToString( a[i] );
- }
-
- // KNOWN ISSUE: In ActionScript, Arrays can also be associative
- // objects and you can put anything in them, ie:
- // myArray["foo"] = "bar";
- //
- // These properties aren't picked up in the for loop above because
- // the properties don't correspond to indexes. However, we're
- // sort of out luck because the JSON specification doesn't allow
- // these types of array properties.
- //
- // So, if the array was also used as an associative object, there
- // may be some values in the array that don't get properly encoded.
- //
- // A possible solution is to instead encode the Array as an Object
- // but then it won't get decoded correctly (and won't be an
- // Array instance)
-
- // close the array and return it's string value
- return "[" + s + "]";
- }
-
- /**
- * Converts an object to it's JSON string equivalent
- *
- * @param o The object to convert
- * @return The JSON string representation of <code>o</code>
- */
- private function objectToString( o:Object ):String
- {
- // create a string to store the object's jsonstring value
- var s:String = "";
-
- // determine if o is a class instance or a plain object
- var classInfo:XML = describeType( o );
- if ( classInfo.@name.toString() == "Object" )
- {
- // the value of o[key] in the loop below - store this
- // as a variable so we don't have to keep looking up o[key]
- // when testing for valid values to convert
- var value:Object;
-
- // loop over the keys in the object and add their converted
- // values to the string
- for ( var key:String in o )
- {
- // assign value to a variable for quick lookup
- value = o[key];
-
- // don't add function's to the JSON string
- if ( value is Function )
- {
- // skip this key and try another
- continue;
- }
-
- // when the length is 0 we're adding the first item so
- // no comma is necessary
- if ( s.length > 0 ) {
- // we've already added an item, so add the comma separator
- s += ","
- }
-
- s += escapeString( key ) + ":" + convertToString( value );
- }
- }
- else // o is a class instance
- {
- // Loop over all of the variables and accessors in the class and
- // serialize them along with their values.
- for each ( var v:XML in classInfo..*.( name() == "variable" || name() == "accessor" ) )
- {
- // When the length is 0 we're adding the first item so
- // no comma is necessary
- if ( s.length > 0 ) {
- // We've already added an item, so add the comma separator
- s += ","
- }
-
- s += escapeString( v.@name.toString() ) + ":"
- + convertToString( o[ v.@name ] );
- }
-
- }
-
- return "{" + s + "}";
- }
-
-
- }
-
-}
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