Revision: 45437
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at April 30, 2011 08:12 by camdagr8
Initial Code
package com {
public class JSON {
// ----o Public Methods
static public function deserialize(source:String):* {
source = new String(source) ; // Speed
var at:Number = 0 ;
var ch:String = ' ';
var _isDigit:Function ;
var _isHexDigit:Function ;
var _white:Function ;
var _string:Function ;
var _next:Function ;
var _array:Function ;
var _object:Function ;
var _number:Function ;
var _word:Function ;
var _value:Function ;
var _error:Function ;
_isDigit = function( /*Char*/ c:String ):* {
return( ("0" <= c) && (c <= "9") );
} ;
_isHexDigit = function( /*Char*/ c:String ):* {
return( _isDigit( c ) || (("A" <= c) && (c <= "F")) || (("a" <= c) && (c <= "f")) );
} ;
_error = function(m:String):void {
//throw new JSONError( m, at - 1 , source) ;
throw new Error(m, at-1);
} ;
_next = function():* {
ch = source.charAt(at);
at += 1;
return ch;
} ;
_white = function ():void {
while (ch) {
if (ch <= ' ') {
_next();
} else if (ch == '/') {
switch (_next()) {
case '/':
while (_next() && ch != '\n' && ch != '\r') {}
break;
case '*':
_next();
for (;;) {
if (ch) {
if (ch == '*') {
if (_next() == '/') {
_next();
break;
}
} else {
_next();
}
} else {
_error("Unterminated Comment");
}
}
break;
default:
_error("Syntax Error");
}
} else {
break;
}
}
};
_string = function ():* {
var i:* = '' ;
var s:* = '' ;
var t:* ;
var u:* ;
var outer:Boolean = false;
if (ch == '"') {
while (_next()) {
if (ch == '"')
{
_next();
return s;
}
else if (ch == '\\')
{
switch (_next()) {
case 'b':
s += '\b';
break;
case 'f':
s += '\f';
break;
case 'n':
s += '\n';
break;
case 'r':
s += '\r';
break;
case 't':
s += '\t';
break;
case 'u':
u = 0;
for (i = 0; i < 4; i += 1) {
t = parseInt(_next(), 16);
if (!isFinite(t)) {
outer = true;
break;
}
u = u * 16 + t;
}
if(outer) {
outer = false;
break;
}
s += String.fromCharCode(u);
break;
default:
s += ch;
}
} else {
s += ch;
}
}
}
_error("Bad String");
return null ;
} ;
_array = function():* {
var a:Array = [];
if (ch == '[') {
_next();
_white();
if (ch == ']') {
_next();
return a;
}
while (ch) {
a.push(_value());
_white();
if (ch == ']') {
_next();
return a;
} else if (ch != ',') {
break;
}
_next();
_white();
}
}
_error("Bad Array");
return null ;
};
_object = function ():* {
var k:* = {} ;
var o:* = {} ;
if (ch == '{') {
_next();
_white();
if (ch == '}')
{
_next() ;
return o ;
}
while (ch)
{
k = _string();
_white();
if (ch != ':')
{
break;
}
_next();
o[k] = _value();
_white();
if (ch == '}') {
_next();
return o;
} else if (ch != ',') {
break;
}
_next();
_white();
}
}
_error("Bad Object") ;
};
_number = function ():* {
var n:* = '' ;
var v:* ;
var hex:String = '' ;
var sign:String = '' ;
if (ch == '-') {
n = '-';
sign = n ;
_next();
}
if( ch == "0" ) {
_next() ;
if( ( ch == "x") || ( ch == "X") ) {
_next();
while( _isHexDigit( ch ) ) {
hex += ch ;
_next();
}
if( hex == "" ) {
_error("mal formed Hexadecimal") ;
} else {
return Number( sign + "0x" + hex ) ;
}
} else {
n += "0" ;
}
}
while ( _isDigit(ch) ) {
n += ch;
_next();
}
if (ch == '.') {
n += '.';
while (_next() && ch >= '0' && ch <= '9') {
n += ch;
}
}
v = 1 * n ;
if (!isFinite(v)) {
_error("Bad Number");
} else {
return v;
}
return NaN ;
};
_word = function ():* {
switch (ch) {
case 't':
if (_next() == 'r' && _next() == 'u' && _next() == 'e') {
_next();
return true;
}
break;
case 'f':
if (_next() == 'a' && _next() == 'l' && _next() == 's' && _next() == 'e') {
_next();
return false;
}
break;
case 'n':
if (_next() == 'u' && _next() == 'l' && _next() == 'l') {
_next();
return null;
}
break;
}
_error("Syntax Error");
return null ;
};
_value = function ():* {
_white();
switch (ch) {
case '{':
return _object();
case '[':
return _array();
case '"':
return _string();
case '-':
return _number();
default:
return ch >= '0' && ch <= '9' ? _number() : _word();
}
};
return _value() ;
}
static public function serialize(o:*):String {
var c:String ; // char
var i:Number ;
var l:Number ;
var s:String = '' ;
var v:* ;
switch (typeof o)
{
case 'object' :
if (o)
{
if (o is Array)
{
l = o.length ;
for (i = 0 ; i < l ; ++i)
{
v = serialize(o[i]);
if (s) s += ',' ;
s += v ;
}
return '[' + s + ']';
}
else if (typeof(o.toString) != 'undefined')
{
for (var prop:String in o)
{
v = o[prop];
if ( (typeof(v) != 'undefined') && (typeof(v) != 'function') )
{
v = serialize(v);
if (s) s += ',';
s += serialize(prop) + ':' + v ;
}
}
return "{" + s + "}";
}
}
return 'null';
case 'number':
return isFinite(o) ? String(o) : 'null' ;
case 'string' :
l = o.length ;
s = '"';
for (i = 0 ; i < l ; i += 1) {
c = o.charAt(i);
if (c >= ' ') {
if (c == '\\' || c == '"')
{
s += '\\';
}
s += c;
}
else
{
switch (c)
{
case '\b':
s += '\\b';
break;
case '\f':
s += '\\f';
break;
case '\n':
s += '\\n';
break;
case '\r':
s += '\\r';
break;
case '\t':
s += '\\t';
break;
default:
var code:Number = c.charCodeAt() ;
s += '\\u00' + (Math.floor(code / 16).toString(16)) + ((code % 16).toString(16)) ;
}
}
}
return s + '"';
case 'boolean':
return String(o);
default:
return 'null';
}
}
}
}
Initial URL
Initial Description
Initial Title
Actionscript JSON
Initial Tags
json
Initial Language
ActionScript 3