/examples/jsonrpc/public/services/phpolait/jsolait/lib/lang.js

Module("lang", "0.3.7", function(mod){
var ISODate = function(d){
if(/^(\d{4})(\d{2})(\d{2})T(\d{2}):(\d{2}):(\d{2})/.test(d)){
return new Date(Date.UTC(RegExp.$1, RegExp.$2-1, RegExp.$3, RegExp.$4, RegExp.$5, RegExp.$6));
}else{ 
throw new mod.Exception("Not an ISO date: " + d);
}
}
mod.JSONParser=Class("JSONParser", function(publ, supr){
publ.init=function(){
this.libs = {};
var sys = {"ISODate" : ISODate};
this.addLib(sys, "sys", ["ISODate"]);
}
publ.addLib = function(obj, name, exports){
if(exports == null){
this.libs[name] = obj;
}else{
for(var i=0;i<exports.length;i++){
this.libs[name + "." + exports[i]] = obj[exports[i]];
}
}
}
var EmptyValue = {};
var SeqSep = {};
var parseValue = function(tkns, libs){
var tkn = tkns.nextNonWS();
switch(tkn.type){
case mod.tokens.STR:
case mod.tokens.NUM:
return eval(tkn.value);
case mod.tokens.NAME:
return parseName(tkn.value);
case mod.tokens.OP:
switch(tkn.value){
case "[":
return parseArray(tkns, libs);
break;
case "{":
return parseObj(tkns, libs);
break;
case "}": case "]":
return EmptyValue;
case ",":
return SeqSep;
default:
throw new mod.Exception("expected '[' or '{' but found: '" + tkn.value + "'");
}
}
return EmptyValue;
}
var parseArray = function(tkns, libs){
var a = [];
while(! tkns.finished()){
var v = parseValue(tkns, libs);
if(v == EmptyValue){
return a;
}else{
a.push(v);
v = parseValue(tkns, libs);
if(v == EmptyValue){
return a;
}else if(v != SeqSep){
throw new mod.Exception("',' expected but found: '" + v + "'");
}
}
}
throw new mod.Exception("']' expected");
}
var parseObj = function(tkns, libs){
var obj = {};
var nme ="";
while(! tkns.finished()){
var tkn = tkns.nextNonWS();
if(tkn.type == mod.tokens.STR){
var nme =  eval(tkn.value);
tkn = tkns.nextNonWS();
if(tkn.value == ":"){
var v = parseValue(tkns, libs);
if(v == SeqSep || v == EmptyValue){
throw new mod.Exception("value expected");
}else{
obj[nme] = v;
v = parseValue(tkns, libs);
if(v == EmptyValue){
return transformObj(obj, libs);
}else if(v != SeqSep){
throw new mod.Exception("',' expected");
}
}
}else{
throw new mod.Exception("':' expected but found: '" + tkn.value + "'");
}
}else if(tkn.value == "}"){
return transformObj(obj, libs);
}else{
throw new mod.Exception("String expected");
}
}
throw new mod.Exception("'}' expected.")
}
var transformObj = function(obj, libs){
var o2;
if(obj.jsonclass != null){
var clsName = obj.jsonclass[0];
var params = obj.jsonclass[1]
if(libs[clsName]){
o2 = libs[clsName].apply(this, params);
for(var nme in obj){
if(nme != "jsonclass"){
if(typeof obj[nme] != "function"){
o2[nme] = obj[nme];
}
}
}
}else{
throw new mod.Exception("jsonclass not found: " + clsName);
}
}else{
o2 = obj;
}
return o2;
}
var parseName = function(name){
switch(name){
case "null":
return null;
case "true":
return true;
case "false":
return false;
default:
throw new mod.Exception("'null', 'true', 'false' expected but found: '" + name + "'");
}
}
publ.jsonToObj = function(data){
var t = new mod.Tokenizer(data);
return parseValue(t, this.libs);
}
publ.objToJson=function(obj){
if(obj == null){
return "null";
}else{
return obj.toJSON();
}
}
})
mod.parser = new mod.JSONParser();
mod.jsonToObj=function(src){
return mod.parser.jsonToObj(src);
}
mod.objToJson=function(obj){
return mod.parser.objToJson(obj);
}
mod.tokens = {};
mod.tokens.WSP = 0;
mod.tokens.OP =1;
mod.tokens.STR = 2;
mod.tokens.NAME = 3;
mod.tokens.NUM = 4;
mod.tokens.ERR = 5;
mod.tokens.NL = 6;
mod.tokens.COMMENT = 7;
mod.tokens.DOCCOMMENT = 8;
mod.tokens.REGEXP = 9;
mod.Token=Class(function(publ, supr){
publ.init=function(type, value, pos, err){
this.type = type;
this.value = value;
this.pos = pos;
this.err= err;
}
})
mod.Tokenizer=Class("Tokenizer", function(publ, supr){
publ.init=function(s){
this._working = s;
this._pos = 0;
}
publ.finished=function(){
return this._working.length == 0;
}
publ.nextNonWS = function(nlIsWS){
var tkn = this.next();
while((tkn.type == mod.tokens.WSP) ||  (nlIsWS && (tkn.type == mod.tokens.NL))){
tkn = this.next();
}
return tkn;
}
publ.next = function(){
if(this._working ==""){
throw new mod.Exception("Empty");
} 
var s1 = this._working.charAt(0);
var s2 = s1 + this._working.charAt(1);
var s3 = s2 + this._working.charAt(2);
var rslt=[];
switch(s1){
case '"': case "'":
try{
s1 = extractQString(this._working);
rslt= new mod.Token(mod.tokens.STR, s1, this._pos);
}catch(e){
rslt= new mod.Token(mod.tokens.ERR, s1, this._pos, e);
}
break;
case "\n": case "\r":
rslt =new mod.Token(mod.tokens.NL, s1, this._pos);
break;   
case "-": 
s1=this._working.match(/-\d+\.\d+|-\d+/)[0];
if(/^-\d|-\d\.\d/.test(s1)){
rslt =  new mod.Token(mod.tokens.NUM, s1, this._pos);
break;
}
case "{": case "}": case "[": case "]": case "(": case ")":
case ":": case ",": case ".": case ";":
case "*": case "-": case "+":
case "=": case "<": case ">":  case "!":   
case "|": case "&":
switch(s2){
case "==": case "!=": case "<>":  case "<=": case ">=":case "||": case "&&":
rslt = new mod.Token(mod.tokens.OP, s2, this._pos);
break;
default:
rslt = new mod.Token(mod.tokens.OP, s1, this._pos);
}
break;
case "/":
if(s2 == "//" || s3 =="///"){
s1 = extractSLComment(this._working);
rslt = new mod.Token(s1.charAt(2) != "/" ? mod.tokens.COMMENT:mod.tokens.DOCCOMMENT, s1, this._pos);
}else if(s2 == "/*" || s3 =="/**"){
try{
s1 = extractMLComment(this._working);
rslt = new mod.Token(s3 !="/**" ? mod.tokens.COMMENT: mod.tokens.DOCCOMMENT, s1, this._pos);
}catch(e){
rslt= new mod.Token(mod.tokens.ERR, s3 != "/**" ? s2 : s3, this._pos, e);
}
}else{
try{
s1 = extractRegExp(this._working);
rslt  = new mod.Token(mod.tokens.REGEXP, s1, this._pos);
}catch(e){
rslt = new mod.Token(mod.tokens.OP, s1, this._pos, e);
}
}
break;
case " ":
var i = 0;
var s="";
while(this._working.charAt(i) == " "){
s+=" ";
i++;
}
rslt = new mod.Token(mod.tokens.WSP, s, this._pos);
break;
default:
s1=this._working.match(/\d+\.\d+|\d+|\w+/)[0];
if(/^\d|\d\.\d/.test(s1)){
rslt =  new mod.Token(mod.tokens.NUM, s1, this._pos);
}else{
rslt =new mod.Token(mod.tokens.NAME, s1, this._pos);
}
}
this._working=this._working.slice(rslt.value.length);
this._pos += rslt.value.length;
return rslt;
}
var searchQoute = function(s, q){
if(q=="'"){
return s.search(/[\\']/);
}else{
return s.search(/[\\"]/);
}
}
var extractQString=function(s){
if(s.charAt(0) == "'"){
var q="'";
}else{
var q='"';
}
s=s.slice(1);
var rs="";
var p= searchQoute(s, q);
while(p >= 0){
if(p >=0){
if(s.charAt(p) == q){
rs += s.slice(0, p+1);
s = s.slice(p+1);
return q + rs;
}else{
rs+=s.slice(0, p+2);
s = s.slice(p+2);
}
}
p = searchQoute(s, q);
}
throw new mod.Exception("End of String expected.");
}
var extractSLComment=function(s){
var p = s.search(/\n/);
if(p>=0){
return s.slice(0,p+1);
}else{
return s;
}
}
var extractMLComment=function(s){
var p = s.search(/\*\//);
            if(p>=0){
return s.slice(0,p+2);
}else{
throw new mod.Exception("End of comment expected.");
}
}
var extractRegExp=function(s){
var p=0;
for(var i=0;i<s.length;i++){
if(s.charAt(i) == "/"){
p=i;
}
if(s.charAt(i) == "\n"){
i = s.length;
}
}
return s.slice(0,p+1);
}
})
Object.prototype.toJSON = function(){
var v=[];
for(attr in this){
if(typeof this[attr] != "function"){
v.push('"' + attr + '": ' + mod.objToJson(this[attr]));
}
}
return "{" + v.join(", ") + "}";
}
String.prototype.toJSON = function(){
var s = '"' + this.replace(/(["\\])/g, '\\$1') + '"';
s = s.replace(/(\n)/g,"\\n");
return s;
}
Number.prototype.toJSON = function(){
return this.toString();
}
Boolean.prototype.toJSON = function(){
return this.toString();
}
Date.prototype.toJSON= function(){
var padd=function(s, p){
s=p+s
return s.substring(s.length - p.length)
}
var y = padd(this.getUTCFullYear(), "0000");
var m = padd(this.getUTCMonth() + 1, "00");
var d = padd(this.getUTCDate(), "00");
var h = padd(this.getUTCHours(), "00");
var min = padd(this.getUTCMinutes(), "00");
var s = padd(this.getUTCSeconds(), "00");
var isodate = y +  m  + d + "T" + h +  ":" + min + ":" + s;
return '{"jsonclass":["sys.ISODate", ["' + isodate + '"]]}';
}
Array.prototype.toJSON = function(){
var v = [];
for(var i=0;i<this.length;i++){
v.push(mod.objToJson(this[i])) ;
}
return "[" + v.join(", ") + "]";
}
mod.test=function(){
try{
print(mod.jsonToObj("['sds', -12377,-1212.1212, 12, '-2312']").toJSON());
}catch(e){
print(e.toTraceString());
}
}
})