package org.json.me.bc;
/*
Copyright (c) 2002 JSON.org
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
The Software shall be used for Good, not Evil.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
*/
import java.io.IOException;
import java.io.Writer;
import java.util.Enumeration;
import java.util.Hashtable;
import java.util.Vector;
/**
* A JSONObject is an unordered collection of name/value pairs. Its
* external form is a string wrapped in curly braces with colons between the
* names and values, and commas between the values and names. The internal form
* is an object having <code>get</code> and <code>opt</code> methods for
* accessing the values by name, and <code>put</code> methods for adding or
* replacing values by name. The values can be any of these types:
* <code>Boolean</code>, <code>JSONArray</code>, <code>JSONObject</code>,
* <code>Number</code>, <code>String</code>, or the <code>JSONObject.NULL</code>
* object. A JSONObject constructor can be used to convert an external form
* JSON text into an internal form whose values can be retrieved with the
* <code>get</code> and <code>opt</code> methods, or to convert values into a
* JSON text using the <code>put</code> and <code>toString</code> methods.
* A <code>get</code> method returns a value if one can be found, and throws an
* exception if one cannot be found. An <code>opt</code> method returns a
* default value instead of throwing an exception, and so is useful for
* obtaining optional values.
* <p>
* The generic <code>get()</code> and <code>opt()</code> methods return an
* object, which you can cast or query for type. There are also typed
* <code>get</code> and <code>opt</code> methods that do type checking and type
* coersion for you.
* <p>
* The <code>put</code> methods adds values to an object. For example, <pre>
* myString = new JSONObject().put("JSON", "Hello, World!").toString();</pre>
* produces the string <code>{"JSON": "Hello, World"}</code>.
* <p>
* The texts produced by the <code>toString</code> methods strictly conform to
* the JSON sysntax rules.
* The constructors are more forgiving in the texts they will accept:
* <ul>
* <li>An extra <code>,</code> <small>(comma)</small> may appear just
* before the closing brace.</li>
* <li>Strings may be quoted with <code>'</code> <small>(single
* quote)</small>.</li>
* <li>Strings do not need to be quoted at all if they do not begin with a quote
* or single quote, and if they do not contain leading or trailing spaces,
* and if they do not contain any of these characters:
* <code>{ } [ ] / \ : , = ; #</code> and if they do not look like numbers
* and if they are not the reserved words <code>true</code>,
* <code>false</code>, or <code>null</code>.</li>
* <li>Keys can be followed by <code>=</code> or <code>=></code> as well as
* by <code>:</code>.</li>
* <li>Values can be followed by <code>;</code> <small>(semicolon)</small> as
* well as by <code>,</code> <small>(comma)</small>.</li>
* <li>Numbers may have the <code>0-</code> <small>(octal)</small> or
* <code>0x-</code> <small>(hex)</small> prefix.</li>
* <li>Comments written in the slashshlash, slashstar, and hash conventions
* will be ignored.</li>
* </ul>
* @author JSON.org
* @version 2
*/
public class JSONObject {
/**
* JSONObject.NULL is equivalent to the value that JavaScript calls null,
* whilst Java's null is equivalent to the value that JavaScript calls
* undefined.
*/
private static final class Null {
/**
* A Null object is equal to the null value and to itself.
* @param object An object to test for nullness.
* @return true if the object parameter is the JSONObject.NULL object
* or null.
*/
public boolean equals(Object object) {
return object == null || object == this;
}
/**
* Get the "null" string value.
* @return The string "null".
*/
public String toString() {
return "null";
}
}
/**
* The hash map where the JSONObject's properties are kept.
*/
private Hashtable myHashMap;
/**
* It is sometimes more convenient and less ambiguous to have a
* <code>NULL</code> object than to use Java's <code>null</code> value.
* <code>JSONObject.NULL.equals(null)</code> returns <code>true</code>.
* <code>JSONObject.NULL.toString()</code> returns <code>"null"</code>.
*/
public static final Object NULL = new Null();
/**
* Construct an empty JSONObject.
*/
public JSONObject() {
this.myHashMap = new Hashtable();
}
//#ifdef PRODUCER
//# /**
//# * Construct a JSONObject from a subset of another JSONObject.
//# * An array of strings is used to identify the keys that should be copied.
//# * Missing keys are ignored.
//# * @param jo A JSONObject.
//# * @param sa An array of strings.
//# * @exception JSONException If a value is a non-finite number.
//# */
//# public JSONObject(JSONObject jo, String[] sa) throws JSONException {
//# this();
//# for (int i = 0; i < sa.length; i += 1) {
//# putOpt(sa[i], jo.opt(sa[i]));
//# }
//# }
//#endif
/**
* Construct a JSONObject from a JSONTokener.
* @param x A JSONTokener object containing the source string.
* @throws JSONException If there is a syntax error in the source string.
*/
public JSONObject(JSONTokener x) throws JSONException {
this();
char c;
String key;
if (x.nextClean() != '{') {
throw x.syntaxError("A JSONObject text must begin with '{'");
}
for (;;) {
c = x.nextClean();
switch (c) {
case 0:
throw x.syntaxError("A JSONObject text must end with '}'");
case '}':
return;
default:
x.back();
key = x.nextValue().toString();
}
/*
* The key is followed by ':'. We will also tolerate '=' or '=>'.
*/
c = x.nextClean();
if (c == '=') {
if (x.next() != '>') {
x.back();
}
} else if (c != ':') {
throw x.syntaxError("Expected a ':' after a key");
}
put(key, x.nextValue());
/*
* Pairs are separated by ','. We will also tolerate ';'.
*/
switch (x.nextClean()) {
case ';':
case ',':
if (x.nextClean() == '}') {
return;
}
x.back();
break;
case '}':
return;
default:
throw x.syntaxError("Expected a ',' or '}'");
}
}
}
//#ifdef PRODUCER
//# /**
//# * Construct a JSONObject from
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Delphi 10 DataSnap 开发和案例解析 (1192个子文件)
Delcar2.avi 6.64MB
2011A61.bmp 801KB
2011A63.bmp 801KB
2011A67.bmp 801KB
2011A62.bmp 801KB
2011A65.bmp 801KB
2011A66.bmp 801KB
2011A64.bmp 799KB
DSAdmin.cs 49KB
DSAdmin.cs 49KB
DSRESTConnection.cs 48KB
DSRESTConnection.cs 48KB
DBXJSONTools.cs 25KB
DBXJSONTools.cs 25KB
DSCallbackChannelManager.cs 17KB
DSCallbackChannelManager.cs 17KB
DBXValue.cs 15KB
DBXValue.cs 15KB
DBXWritableValue.cs 15KB
DBXWritableValue.cs 15KB
DBXDefaultFormatter.cs 10KB
DBXDefaultFormatter.cs 10KB
TJSONObject.cs 10KB
TJSONObject.cs 10KB
TJSONArray.cs 9KB
TJSONArray.cs 9KB
UrlUTF8Encoder.cs 6KB
UrlUTF8Encoder.cs 6KB
DBXValueType.cs 5KB
DBXValueType.cs 5KB
TParams.cs 5KB
TParams.cs 5KB
Base64.cs 5KB
Base64.cs 5KB
DSRESTCommand.cs 4KB
DSRESTCommand.cs 4KB
DBXDataTypes.cs 4KB
DBXDataTypes.cs 4KB
TJSONNumber.cs 4KB
TJSONNumber.cs 4KB
DBXTools.cs 3KB
DBXTools.cs 3KB
DBXParameter.cs 2KB
DBXParameter.cs 2KB
TDBXReader.cs 2KB
TDBXReader.cs 2KB
DSRESTParameter.cs 2KB
DSRESTParameter.cs 2KB
TDBXReaderValue.cs 1KB
TDBXReaderValue.cs 1KB
TDBXAnsiStringValue.cs 1KB
TDBXAnsiStringValue.cs 1KB
DSRESTParameterMetaData.cs 1KB
DSRESTParameterMetaData.cs 1KB
TDBXWideStringValue.cs 1KB
TDBXWideStringValue.cs 1KB
TDBXAnsiCharsValue.cs 1KB
TDBXAnsiCharsValue.cs 1KB
TDBXStringValue.cs 1KB
TDBXStringValue.cs 1KB
TDBXBooleanValue.cs 1KB
TDBXBooleanValue.cs 1KB
TStream.cs 1KB
TStream.cs 1KB
TDBXDoubleValue.cs 1KB
TDBXDoubleValue.cs 1KB
TDBXSingleValue.cs 1KB
TDBXSingleValue.cs 1KB
TDBXInt64Value.cs 1KB
TDBXInt64Value.cs 1KB
TDBXInt16Value.cs 1KB
TDBXInt16Value.cs 1KB
TDBXTimeValue.cs 1KB
TDBXDateValue.cs 1KB
TDBXDateValue.cs 1KB
TDBXTimeValue.cs 1KB
TDBXInt32Value.cs 1KB
TDBXInt32Value.cs 1KB
TDBXInt8Value.cs 1KB
TDBXInt8Value.cs 1KB
TDBXTimeStampValue.cs 1KB
TDBXTimeStampValue.cs 1KB
TDBXStreamValue.cs 1KB
TDBXStreamValue.cs 1KB
TJSONString.cs 1KB
TJSONString.cs 1KB
TJSONPair.cs 1KB
TJSONPair.cs 1KB
TDataSet.cs 1KB
TDataSet.cs 1KB
TDBXBcdValue.cs 1KB
TDBXBcdValue.cs 1KB
TJSONValue.cs 1KB
TJSONValue.cs 1KB
TJSONFalse.cs 882B
TJSONFalse.cs 882B
TJSONNull.cs 877B
TJSONNull.cs 877B
TJSONTrue.cs 814B
TJSONTrue.cs 814B
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