1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/mobile/android/thirdparty/org/json/simple/parser/JSONParser.java Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,533 @@
1.4 +/*
1.5 + * $Id: JSONParser.java,v 1.1 2006/04/15 14:10:48 platform Exp $
1.6 + * Created on 2006-4-15
1.7 + */
1.8 +package org.json.simple.parser;
1.9 +
1.10 +import java.io.IOException;
1.11 +import java.io.Reader;
1.12 +import java.io.StringReader;
1.13 +import java.util.LinkedList;
1.14 +import java.util.List;
1.15 +import java.util.Map;
1.16 +
1.17 +import org.json.simple.JSONArray;
1.18 +import org.json.simple.JSONObject;
1.19 +
1.20 +
1.21 +/**
1.22 + * Parser for JSON text. Please note that JSONParser is NOT thread-safe.
1.23 + *
1.24 + * @author FangYidong<fangyidong@yahoo.com.cn>
1.25 + */
1.26 +public class JSONParser {
1.27 + public static final int S_INIT=0;
1.28 + public static final int S_IN_FINISHED_VALUE=1;//string,number,boolean,null,object,array
1.29 + public static final int S_IN_OBJECT=2;
1.30 + public static final int S_IN_ARRAY=3;
1.31 + public static final int S_PASSED_PAIR_KEY=4;
1.32 + public static final int S_IN_PAIR_VALUE=5;
1.33 + public static final int S_END=6;
1.34 + public static final int S_IN_ERROR=-1;
1.35 +
1.36 + private LinkedList handlerStatusStack;
1.37 + private Yylex lexer = new Yylex((Reader)null);
1.38 + private Yytoken token = null;
1.39 + private int status = S_INIT;
1.40 +
1.41 + private int peekStatus(LinkedList statusStack){
1.42 + if(statusStack.size()==0)
1.43 + return -1;
1.44 + Integer status=(Integer)statusStack.getFirst();
1.45 + return status.intValue();
1.46 + }
1.47 +
1.48 + /**
1.49 + * Reset the parser to the initial state without resetting the underlying reader.
1.50 + *
1.51 + */
1.52 + public void reset(){
1.53 + token = null;
1.54 + status = S_INIT;
1.55 + handlerStatusStack = null;
1.56 + }
1.57 +
1.58 + /**
1.59 + * Reset the parser to the initial state with a new character reader.
1.60 + *
1.61 + * @param in - The new character reader.
1.62 + * @throws IOException
1.63 + * @throws ParseException
1.64 + */
1.65 + public void reset(Reader in){
1.66 + lexer.yyreset(in);
1.67 + reset();
1.68 + }
1.69 +
1.70 + /**
1.71 + * @return The position of the beginning of the current token.
1.72 + */
1.73 + public int getPosition(){
1.74 + return lexer.getPosition();
1.75 + }
1.76 +
1.77 + public Object parse(String s) throws ParseException{
1.78 + return parse(s, (ContainerFactory)null);
1.79 + }
1.80 +
1.81 + public Object parse(String s, ContainerFactory containerFactory) throws ParseException{
1.82 + StringReader in=new StringReader(s);
1.83 + try{
1.84 + return parse(in, containerFactory);
1.85 + }
1.86 + catch(IOException ie){
1.87 + /*
1.88 + * Actually it will never happen.
1.89 + */
1.90 + throw new ParseException(-1, ParseException.ERROR_UNEXPECTED_EXCEPTION, ie);
1.91 + }
1.92 + }
1.93 +
1.94 + public Object parse(Reader in) throws IOException, ParseException{
1.95 + return parse(in, (ContainerFactory)null);
1.96 + }
1.97 +
1.98 + /**
1.99 + * Parse JSON text into java object from the input source.
1.100 + *
1.101 + * @param in
1.102 + * @param containerFactory - Use this factory to createyour own JSON object and JSON array containers.
1.103 + * @return Instance of the following:
1.104 + * org.json.simple.JSONObject,
1.105 + * org.json.simple.JSONArray,
1.106 + * java.lang.String,
1.107 + * java.lang.Number,
1.108 + * java.lang.Boolean,
1.109 + * null
1.110 + *
1.111 + * @throws IOException
1.112 + * @throws ParseException
1.113 + */
1.114 + public Object parse(Reader in, ContainerFactory containerFactory) throws IOException, ParseException{
1.115 + reset(in);
1.116 + LinkedList statusStack = new LinkedList();
1.117 + LinkedList valueStack = new LinkedList();
1.118 +
1.119 + try{
1.120 + do{
1.121 + nextToken();
1.122 + switch(status){
1.123 + case S_INIT:
1.124 + switch(token.type){
1.125 + case Yytoken.TYPE_VALUE:
1.126 + status=S_IN_FINISHED_VALUE;
1.127 + statusStack.addFirst(new Integer(status));
1.128 + valueStack.addFirst(token.value);
1.129 + break;
1.130 + case Yytoken.TYPE_LEFT_BRACE:
1.131 + status=S_IN_OBJECT;
1.132 + statusStack.addFirst(new Integer(status));
1.133 + valueStack.addFirst(createObjectContainer(containerFactory));
1.134 + break;
1.135 + case Yytoken.TYPE_LEFT_SQUARE:
1.136 + status=S_IN_ARRAY;
1.137 + statusStack.addFirst(new Integer(status));
1.138 + valueStack.addFirst(createArrayContainer(containerFactory));
1.139 + break;
1.140 + default:
1.141 + status=S_IN_ERROR;
1.142 + }//inner switch
1.143 + break;
1.144 +
1.145 + case S_IN_FINISHED_VALUE:
1.146 + if(token.type==Yytoken.TYPE_EOF)
1.147 + return valueStack.removeFirst();
1.148 + else
1.149 + throw new ParseException(getPosition(), ParseException.ERROR_UNEXPECTED_TOKEN, token);
1.150 +
1.151 + case S_IN_OBJECT:
1.152 + switch(token.type){
1.153 + case Yytoken.TYPE_COMMA:
1.154 + break;
1.155 + case Yytoken.TYPE_VALUE:
1.156 + if(token.value instanceof String){
1.157 + String key=(String)token.value;
1.158 + valueStack.addFirst(key);
1.159 + status=S_PASSED_PAIR_KEY;
1.160 + statusStack.addFirst(new Integer(status));
1.161 + }
1.162 + else{
1.163 + status=S_IN_ERROR;
1.164 + }
1.165 + break;
1.166 + case Yytoken.TYPE_RIGHT_BRACE:
1.167 + if(valueStack.size()>1){
1.168 + statusStack.removeFirst();
1.169 + valueStack.removeFirst();
1.170 + status=peekStatus(statusStack);
1.171 + }
1.172 + else{
1.173 + status=S_IN_FINISHED_VALUE;
1.174 + }
1.175 + break;
1.176 + default:
1.177 + status=S_IN_ERROR;
1.178 + break;
1.179 + }//inner switch
1.180 + break;
1.181 +
1.182 + case S_PASSED_PAIR_KEY:
1.183 + switch(token.type){
1.184 + case Yytoken.TYPE_COLON:
1.185 + break;
1.186 + case Yytoken.TYPE_VALUE:
1.187 + statusStack.removeFirst();
1.188 + String key=(String)valueStack.removeFirst();
1.189 + Map parent=(Map)valueStack.getFirst();
1.190 + parent.put(key,token.value);
1.191 + status=peekStatus(statusStack);
1.192 + break;
1.193 + case Yytoken.TYPE_LEFT_SQUARE:
1.194 + statusStack.removeFirst();
1.195 + key=(String)valueStack.removeFirst();
1.196 + parent=(Map)valueStack.getFirst();
1.197 + List newArray=createArrayContainer(containerFactory);
1.198 + parent.put(key,newArray);
1.199 + status=S_IN_ARRAY;
1.200 + statusStack.addFirst(new Integer(status));
1.201 + valueStack.addFirst(newArray);
1.202 + break;
1.203 + case Yytoken.TYPE_LEFT_BRACE:
1.204 + statusStack.removeFirst();
1.205 + key=(String)valueStack.removeFirst();
1.206 + parent=(Map)valueStack.getFirst();
1.207 + Map newObject=createObjectContainer(containerFactory);
1.208 + parent.put(key,newObject);
1.209 + status=S_IN_OBJECT;
1.210 + statusStack.addFirst(new Integer(status));
1.211 + valueStack.addFirst(newObject);
1.212 + break;
1.213 + default:
1.214 + status=S_IN_ERROR;
1.215 + }
1.216 + break;
1.217 +
1.218 + case S_IN_ARRAY:
1.219 + switch(token.type){
1.220 + case Yytoken.TYPE_COMMA:
1.221 + break;
1.222 + case Yytoken.TYPE_VALUE:
1.223 + List val=(List)valueStack.getFirst();
1.224 + val.add(token.value);
1.225 + break;
1.226 + case Yytoken.TYPE_RIGHT_SQUARE:
1.227 + if(valueStack.size()>1){
1.228 + statusStack.removeFirst();
1.229 + valueStack.removeFirst();
1.230 + status=peekStatus(statusStack);
1.231 + }
1.232 + else{
1.233 + status=S_IN_FINISHED_VALUE;
1.234 + }
1.235 + break;
1.236 + case Yytoken.TYPE_LEFT_BRACE:
1.237 + val=(List)valueStack.getFirst();
1.238 + Map newObject=createObjectContainer(containerFactory);
1.239 + val.add(newObject);
1.240 + status=S_IN_OBJECT;
1.241 + statusStack.addFirst(new Integer(status));
1.242 + valueStack.addFirst(newObject);
1.243 + break;
1.244 + case Yytoken.TYPE_LEFT_SQUARE:
1.245 + val=(List)valueStack.getFirst();
1.246 + List newArray=createArrayContainer(containerFactory);
1.247 + val.add(newArray);
1.248 + status=S_IN_ARRAY;
1.249 + statusStack.addFirst(new Integer(status));
1.250 + valueStack.addFirst(newArray);
1.251 + break;
1.252 + default:
1.253 + status=S_IN_ERROR;
1.254 + }//inner switch
1.255 + break;
1.256 + case S_IN_ERROR:
1.257 + throw new ParseException(getPosition(), ParseException.ERROR_UNEXPECTED_TOKEN, token);
1.258 + }//switch
1.259 + if(status==S_IN_ERROR){
1.260 + throw new ParseException(getPosition(), ParseException.ERROR_UNEXPECTED_TOKEN, token);
1.261 + }
1.262 + }while(token.type!=Yytoken.TYPE_EOF);
1.263 + }
1.264 + catch(IOException ie){
1.265 + throw ie;
1.266 + }
1.267 +
1.268 + throw new ParseException(getPosition(), ParseException.ERROR_UNEXPECTED_TOKEN, token);
1.269 + }
1.270 +
1.271 + private void nextToken() throws ParseException, IOException{
1.272 + token = lexer.yylex();
1.273 + if(token == null)
1.274 + token = new Yytoken(Yytoken.TYPE_EOF, null);
1.275 + }
1.276 +
1.277 + private Map createObjectContainer(ContainerFactory containerFactory){
1.278 + if(containerFactory == null)
1.279 + return new JSONObject();
1.280 + Map m = containerFactory.createObjectContainer();
1.281 +
1.282 + if(m == null)
1.283 + return new JSONObject();
1.284 + return m;
1.285 + }
1.286 +
1.287 + private List createArrayContainer(ContainerFactory containerFactory){
1.288 + if(containerFactory == null)
1.289 + return new JSONArray();
1.290 + List l = containerFactory.creatArrayContainer();
1.291 +
1.292 + if(l == null)
1.293 + return new JSONArray();
1.294 + return l;
1.295 + }
1.296 +
1.297 + public void parse(String s, ContentHandler contentHandler) throws ParseException{
1.298 + parse(s, contentHandler, false);
1.299 + }
1.300 +
1.301 + public void parse(String s, ContentHandler contentHandler, boolean isResume) throws ParseException{
1.302 + StringReader in=new StringReader(s);
1.303 + try{
1.304 + parse(in, contentHandler, isResume);
1.305 + }
1.306 + catch(IOException ie){
1.307 + /*
1.308 + * Actually it will never happen.
1.309 + */
1.310 + throw new ParseException(-1, ParseException.ERROR_UNEXPECTED_EXCEPTION, ie);
1.311 + }
1.312 + }
1.313 +
1.314 + public void parse(Reader in, ContentHandler contentHandler) throws IOException, ParseException{
1.315 + parse(in, contentHandler, false);
1.316 + }
1.317 +
1.318 + /**
1.319 + * Stream processing of JSON text.
1.320 + *
1.321 + * @see ContentHandler
1.322 + *
1.323 + * @param in
1.324 + * @param contentHandler
1.325 + * @param isResume - Indicates if it continues previous parsing operation.
1.326 + * If set to true, resume parsing the old stream, and parameter 'in' will be ignored.
1.327 + * If this method is called for the first time in this instance, isResume will be ignored.
1.328 + *
1.329 + * @throws IOException
1.330 + * @throws ParseException
1.331 + */
1.332 + public void parse(Reader in, ContentHandler contentHandler, boolean isResume) throws IOException, ParseException{
1.333 + if(!isResume){
1.334 + reset(in);
1.335 + handlerStatusStack = new LinkedList();
1.336 + }
1.337 + else{
1.338 + if(handlerStatusStack == null){
1.339 + isResume = false;
1.340 + reset(in);
1.341 + handlerStatusStack = new LinkedList();
1.342 + }
1.343 + }
1.344 +
1.345 + LinkedList statusStack = handlerStatusStack;
1.346 +
1.347 + try{
1.348 + do{
1.349 + switch(status){
1.350 + case S_INIT:
1.351 + contentHandler.startJSON();
1.352 + nextToken();
1.353 + switch(token.type){
1.354 + case Yytoken.TYPE_VALUE:
1.355 + status=S_IN_FINISHED_VALUE;
1.356 + statusStack.addFirst(new Integer(status));
1.357 + if(!contentHandler.primitive(token.value))
1.358 + return;
1.359 + break;
1.360 + case Yytoken.TYPE_LEFT_BRACE:
1.361 + status=S_IN_OBJECT;
1.362 + statusStack.addFirst(new Integer(status));
1.363 + if(!contentHandler.startObject())
1.364 + return;
1.365 + break;
1.366 + case Yytoken.TYPE_LEFT_SQUARE:
1.367 + status=S_IN_ARRAY;
1.368 + statusStack.addFirst(new Integer(status));
1.369 + if(!contentHandler.startArray())
1.370 + return;
1.371 + break;
1.372 + default:
1.373 + status=S_IN_ERROR;
1.374 + }//inner switch
1.375 + break;
1.376 +
1.377 + case S_IN_FINISHED_VALUE:
1.378 + nextToken();
1.379 + if(token.type==Yytoken.TYPE_EOF){
1.380 + contentHandler.endJSON();
1.381 + status = S_END;
1.382 + return;
1.383 + }
1.384 + else{
1.385 + status = S_IN_ERROR;
1.386 + throw new ParseException(getPosition(), ParseException.ERROR_UNEXPECTED_TOKEN, token);
1.387 + }
1.388 +
1.389 + case S_IN_OBJECT:
1.390 + nextToken();
1.391 + switch(token.type){
1.392 + case Yytoken.TYPE_COMMA:
1.393 + break;
1.394 + case Yytoken.TYPE_VALUE:
1.395 + if(token.value instanceof String){
1.396 + String key=(String)token.value;
1.397 + status=S_PASSED_PAIR_KEY;
1.398 + statusStack.addFirst(new Integer(status));
1.399 + if(!contentHandler.startObjectEntry(key))
1.400 + return;
1.401 + }
1.402 + else{
1.403 + status=S_IN_ERROR;
1.404 + }
1.405 + break;
1.406 + case Yytoken.TYPE_RIGHT_BRACE:
1.407 + if(statusStack.size()>1){
1.408 + statusStack.removeFirst();
1.409 + status=peekStatus(statusStack);
1.410 + }
1.411 + else{
1.412 + status=S_IN_FINISHED_VALUE;
1.413 + }
1.414 + if(!contentHandler.endObject())
1.415 + return;
1.416 + break;
1.417 + default:
1.418 + status=S_IN_ERROR;
1.419 + break;
1.420 + }//inner switch
1.421 + break;
1.422 +
1.423 + case S_PASSED_PAIR_KEY:
1.424 + nextToken();
1.425 + switch(token.type){
1.426 + case Yytoken.TYPE_COLON:
1.427 + break;
1.428 + case Yytoken.TYPE_VALUE:
1.429 + statusStack.removeFirst();
1.430 + status=peekStatus(statusStack);
1.431 + if(!contentHandler.primitive(token.value))
1.432 + return;
1.433 + if(!contentHandler.endObjectEntry())
1.434 + return;
1.435 + break;
1.436 + case Yytoken.TYPE_LEFT_SQUARE:
1.437 + statusStack.removeFirst();
1.438 + statusStack.addFirst(new Integer(S_IN_PAIR_VALUE));
1.439 + status=S_IN_ARRAY;
1.440 + statusStack.addFirst(new Integer(status));
1.441 + if(!contentHandler.startArray())
1.442 + return;
1.443 + break;
1.444 + case Yytoken.TYPE_LEFT_BRACE:
1.445 + statusStack.removeFirst();
1.446 + statusStack.addFirst(new Integer(S_IN_PAIR_VALUE));
1.447 + status=S_IN_OBJECT;
1.448 + statusStack.addFirst(new Integer(status));
1.449 + if(!contentHandler.startObject())
1.450 + return;
1.451 + break;
1.452 + default:
1.453 + status=S_IN_ERROR;
1.454 + }
1.455 + break;
1.456 +
1.457 + case S_IN_PAIR_VALUE:
1.458 + /*
1.459 + * S_IN_PAIR_VALUE is just a marker to indicate the end of an object entry, it doesn't proccess any token,
1.460 + * therefore delay consuming token until next round.
1.461 + */
1.462 + statusStack.removeFirst();
1.463 + status = peekStatus(statusStack);
1.464 + if(!contentHandler.endObjectEntry())
1.465 + return;
1.466 + break;
1.467 +
1.468 + case S_IN_ARRAY:
1.469 + nextToken();
1.470 + switch(token.type){
1.471 + case Yytoken.TYPE_COMMA:
1.472 + break;
1.473 + case Yytoken.TYPE_VALUE:
1.474 + if(!contentHandler.primitive(token.value))
1.475 + return;
1.476 + break;
1.477 + case Yytoken.TYPE_RIGHT_SQUARE:
1.478 + if(statusStack.size()>1){
1.479 + statusStack.removeFirst();
1.480 + status=peekStatus(statusStack);
1.481 + }
1.482 + else{
1.483 + status=S_IN_FINISHED_VALUE;
1.484 + }
1.485 + if(!contentHandler.endArray())
1.486 + return;
1.487 + break;
1.488 + case Yytoken.TYPE_LEFT_BRACE:
1.489 + status=S_IN_OBJECT;
1.490 + statusStack.addFirst(new Integer(status));
1.491 + if(!contentHandler.startObject())
1.492 + return;
1.493 + break;
1.494 + case Yytoken.TYPE_LEFT_SQUARE:
1.495 + status=S_IN_ARRAY;
1.496 + statusStack.addFirst(new Integer(status));
1.497 + if(!contentHandler.startArray())
1.498 + return;
1.499 + break;
1.500 + default:
1.501 + status=S_IN_ERROR;
1.502 + }//inner switch
1.503 + break;
1.504 +
1.505 + case S_END:
1.506 + return;
1.507 +
1.508 + case S_IN_ERROR:
1.509 + throw new ParseException(getPosition(), ParseException.ERROR_UNEXPECTED_TOKEN, token);
1.510 + }//switch
1.511 + if(status==S_IN_ERROR){
1.512 + throw new ParseException(getPosition(), ParseException.ERROR_UNEXPECTED_TOKEN, token);
1.513 + }
1.514 + }while(token.type!=Yytoken.TYPE_EOF);
1.515 + }
1.516 + catch(IOException ie){
1.517 + status = S_IN_ERROR;
1.518 + throw ie;
1.519 + }
1.520 + catch(ParseException pe){
1.521 + status = S_IN_ERROR;
1.522 + throw pe;
1.523 + }
1.524 + catch(RuntimeException re){
1.525 + status = S_IN_ERROR;
1.526 + throw re;
1.527 + }
1.528 + catch(Error e){
1.529 + status = S_IN_ERROR;
1.530 + throw e;
1.531 + }
1.532 +
1.533 + status = S_IN_ERROR;
1.534 + throw new ParseException(getPosition(), ParseException.ERROR_UNEXPECTED_TOKEN, token);
1.535 + }
1.536 +}
