您最多选择25个主题
主题必须以中文或者字母或数字开头，可以包含连字符 (-)，并且长度不得超过35个字符
547 行
18 KiB
547 行
18 KiB
/*
|
|
* Copyright (c) 2013 Calvin Rien
|
|
*
|
|
* Based on the JSON parser by Patrick van Bergen
|
|
* http://techblog.procurios.nl/k/618/news/view/14605/14863/How-do-I-write-my-own-parser-for-JSON.html
|
|
*
|
|
* Simplified it so that it doesn't throw exceptions
|
|
* and can be used in Unity iPhone with maximum code stripping.
|
|
*
|
|
* 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 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.
|
|
*/
|
|
using System;
|
|
using System.Collections;
|
|
using System.Collections.Generic;
|
|
using System.IO;
|
|
using System.Text;
|
|
|
|
namespace MiniJSON {
|
|
// Example usage:
|
|
//
|
|
// using UnityEngine;
|
|
// using System.Collections;
|
|
// using System.Collections.Generic;
|
|
// using MiniJSON;
|
|
//
|
|
// public class MiniJSONTest : MonoBehaviour {
|
|
// void Start () {
|
|
// var jsonString = "{ \"array\": [1.44,2,3], " +
|
|
// "\"object\": {\"key1\":\"value1\", \"key2\":256}, " +
|
|
// "\"string\": \"The quick brown fox \\\"jumps\\\" over the lazy dog \", " +
|
|
// "\"unicode\": \"\\u3041 Men\u00fa sesi\u00f3n\", " +
|
|
// "\"int\": 65536, " +
|
|
// "\"float\": 3.1415926, " +
|
|
// "\"bool\": true, " +
|
|
// "\"null\": null }";
|
|
//
|
|
// var dict = Json.Deserialize(jsonString) as Dictionary<string,object>;
|
|
//
|
|
// Debug.Log("deserialized: " + dict.GetType());
|
|
// Debug.Log("dict['array'][0]: " + ((List<object>) dict["array"])[0]);
|
|
// Debug.Log("dict['string']: " + (string) dict["string"]);
|
|
// Debug.Log("dict['float']: " + (double) dict["float"]); // floats come out as doubles
|
|
// Debug.Log("dict['int']: " + (long) dict["int"]); // ints come out as longs
|
|
// Debug.Log("dict['unicode']: " + (string) dict["unicode"]);
|
|
//
|
|
// var str = Json.Serialize(dict);
|
|
//
|
|
// Debug.Log("serialized: " + str);
|
|
// }
|
|
// }
|
|
|
|
/// <summary>
|
|
/// This class encodes and decodes JSON strings.
|
|
/// Spec. details, see http://www.json.org/
|
|
///
|
|
/// JSON uses Arrays and Objects. These correspond here to the datatypes IList and IDictionary.
|
|
/// All numbers are parsed to doubles.
|
|
/// </summary>
|
|
public static class Json {
|
|
/// <summary>
|
|
/// Parses the string json into a value
|
|
/// </summary>
|
|
/// <param name="json">A JSON string.</param>
|
|
/// <returns>An List<object>, a Dictionary<string, object>, a double, an integer,a string, null, true, or false</returns>
|
|
public static object Deserialize(string json) {
|
|
// save the string for debug information
|
|
if (json == null) {
|
|
return null;
|
|
}
|
|
|
|
return Parser.Parse(json);
|
|
}
|
|
|
|
sealed class Parser : IDisposable {
|
|
const string WORD_BREAK = "{}[],:\"";
|
|
|
|
public static bool IsWordBreak(char c) {
|
|
return Char.IsWhiteSpace(c) || WORD_BREAK.IndexOf(c) != -1;
|
|
}
|
|
|
|
enum TOKEN {
|
|
NONE,
|
|
CURLY_OPEN,
|
|
CURLY_CLOSE,
|
|
SQUARED_OPEN,
|
|
SQUARED_CLOSE,
|
|
COLON,
|
|
COMMA,
|
|
STRING,
|
|
NUMBER,
|
|
TRUE,
|
|
FALSE,
|
|
NULL
|
|
};
|
|
|
|
StringReader json;
|
|
|
|
Parser(string jsonString) {
|
|
json = new StringReader(jsonString);
|
|
}
|
|
|
|
public static object Parse(string jsonString) {
|
|
using (var instance = new Parser(jsonString)) {
|
|
return instance.ParseValue();
|
|
}
|
|
}
|
|
|
|
public void Dispose() {
|
|
json.Dispose();
|
|
json = null;
|
|
}
|
|
|
|
Dictionary<string, object> ParseObject() {
|
|
Dictionary<string, object> table = new Dictionary<string, object>();
|
|
|
|
// ditch opening brace
|
|
json.Read();
|
|
|
|
// {
|
|
while (true) {
|
|
switch (NextToken) {
|
|
case TOKEN.NONE:
|
|
return null;
|
|
case TOKEN.COMMA:
|
|
continue;
|
|
case TOKEN.CURLY_CLOSE:
|
|
return table;
|
|
default:
|
|
// name
|
|
string name = ParseString();
|
|
if (name == null) {
|
|
return null;
|
|
}
|
|
|
|
// :
|
|
if (NextToken != TOKEN.COLON) {
|
|
return null;
|
|
}
|
|
// ditch the colon
|
|
json.Read();
|
|
|
|
// value
|
|
table[name] = ParseValue();
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
List<object> ParseArray() {
|
|
List<object> array = new List<object>();
|
|
|
|
// ditch opening bracket
|
|
json.Read();
|
|
|
|
// [
|
|
var parsing = true;
|
|
while (parsing) {
|
|
TOKEN nextToken = NextToken;
|
|
|
|
switch (nextToken) {
|
|
case TOKEN.NONE:
|
|
return null;
|
|
case TOKEN.COMMA:
|
|
continue;
|
|
case TOKEN.SQUARED_CLOSE:
|
|
parsing = false;
|
|
break;
|
|
default:
|
|
object value = ParseByToken(nextToken);
|
|
|
|
array.Add(value);
|
|
break;
|
|
}
|
|
}
|
|
|
|
return array;
|
|
}
|
|
|
|
object ParseValue() {
|
|
TOKEN nextToken = NextToken;
|
|
return ParseByToken(nextToken);
|
|
}
|
|
|
|
object ParseByToken(TOKEN token) {
|
|
switch (token) {
|
|
case TOKEN.STRING:
|
|
return ParseString();
|
|
case TOKEN.NUMBER:
|
|
return ParseNumber();
|
|
case TOKEN.CURLY_OPEN:
|
|
return ParseObject();
|
|
case TOKEN.SQUARED_OPEN:
|
|
return ParseArray();
|
|
case TOKEN.TRUE:
|
|
return true;
|
|
case TOKEN.FALSE:
|
|
return false;
|
|
case TOKEN.NULL:
|
|
return null;
|
|
default:
|
|
return null;
|
|
}
|
|
}
|
|
|
|
string ParseString() {
|
|
StringBuilder s = new StringBuilder();
|
|
char c;
|
|
|
|
// ditch opening quote
|
|
json.Read();
|
|
|
|
bool parsing = true;
|
|
while (parsing) {
|
|
|
|
if (json.Peek() == -1) {
|
|
parsing = false;
|
|
break;
|
|
}
|
|
|
|
c = NextChar;
|
|
switch (c) {
|
|
case '"':
|
|
parsing = false;
|
|
break;
|
|
case '\\':
|
|
if (json.Peek() == -1) {
|
|
parsing = false;
|
|
break;
|
|
}
|
|
|
|
c = NextChar;
|
|
switch (c) {
|
|
case '"':
|
|
case '\\':
|
|
case '/':
|
|
s.Append(c);
|
|
break;
|
|
case 'b':
|
|
s.Append('\b');
|
|
break;
|
|
case 'f':
|
|
s.Append('\f');
|
|
break;
|
|
case 'n':
|
|
s.Append('\n');
|
|
break;
|
|
case 'r':
|
|
s.Append('\r');
|
|
break;
|
|
case 't':
|
|
s.Append('\t');
|
|
break;
|
|
case 'u':
|
|
var hex = new char[4];
|
|
|
|
for (int i=0; i< 4; i++) {
|
|
hex[i] = NextChar;
|
|
}
|
|
|
|
s.Append((char) Convert.ToInt32(new string(hex), 16));
|
|
break;
|
|
}
|
|
break;
|
|
default:
|
|
s.Append(c);
|
|
break;
|
|
}
|
|
}
|
|
|
|
return s.ToString();
|
|
}
|
|
|
|
object ParseNumber() {
|
|
string number = NextWord;
|
|
|
|
if (number.IndexOf('.') == -1) {
|
|
long parsedInt;
|
|
Int64.TryParse(number, out parsedInt);
|
|
return parsedInt;
|
|
}
|
|
|
|
double parsedDouble;
|
|
Double.TryParse(number, out parsedDouble);
|
|
return parsedDouble;
|
|
}
|
|
|
|
void EatWhitespace() {
|
|
while (Char.IsWhiteSpace(PeekChar)) {
|
|
json.Read();
|
|
|
|
if (json.Peek() == -1) {
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
char PeekChar {
|
|
get {
|
|
return Convert.ToChar(json.Peek());
|
|
}
|
|
}
|
|
|
|
char NextChar {
|
|
get {
|
|
return Convert.ToChar(json.Read());
|
|
}
|
|
}
|
|
|
|
string NextWord {
|
|
get {
|
|
StringBuilder word = new StringBuilder();
|
|
|
|
while (!IsWordBreak(PeekChar)) {
|
|
word.Append(NextChar);
|
|
|
|
if (json.Peek() == -1) {
|
|
break;
|
|
}
|
|
}
|
|
|
|
return word.ToString();
|
|
}
|
|
}
|
|
|
|
TOKEN NextToken {
|
|
get {
|
|
EatWhitespace();
|
|
|
|
if (json.Peek() == -1) {
|
|
return TOKEN.NONE;
|
|
}
|
|
|
|
switch (PeekChar) {
|
|
case '{':
|
|
return TOKEN.CURLY_OPEN;
|
|
case '}':
|
|
json.Read();
|
|
return TOKEN.CURLY_CLOSE;
|
|
case '[':
|
|
return TOKEN.SQUARED_OPEN;
|
|
case ']':
|
|
json.Read();
|
|
return TOKEN.SQUARED_CLOSE;
|
|
case ',':
|
|
json.Read();
|
|
return TOKEN.COMMA;
|
|
case '"':
|
|
return TOKEN.STRING;
|
|
case ':':
|
|
return TOKEN.COLON;
|
|
case '0':
|
|
case '1':
|
|
case '2':
|
|
case '3':
|
|
case '4':
|
|
case '5':
|
|
case '6':
|
|
case '7':
|
|
case '8':
|
|
case '9':
|
|
case '-':
|
|
return TOKEN.NUMBER;
|
|
}
|
|
|
|
switch (NextWord) {
|
|
case "false":
|
|
return TOKEN.FALSE;
|
|
case "true":
|
|
return TOKEN.TRUE;
|
|
case "null":
|
|
return TOKEN.NULL;
|
|
}
|
|
|
|
return TOKEN.NONE;
|
|
}
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// Converts a IDictionary / IList object or a simple type (string, int, etc.) into a JSON string
|
|
/// </summary>
|
|
/// <param name="json">A Dictionary<string, object> / List<object></param>
|
|
/// <returns>A JSON encoded string, or null if object 'json' is not serializable</returns>
|
|
public static string Serialize(object obj) {
|
|
return Serializer.Serialize(obj);
|
|
}
|
|
|
|
sealed class Serializer {
|
|
StringBuilder builder;
|
|
|
|
Serializer() {
|
|
builder = new StringBuilder();
|
|
}
|
|
|
|
public static string Serialize(object obj) {
|
|
var instance = new Serializer();
|
|
|
|
instance.SerializeValue(obj);
|
|
|
|
return instance.builder.ToString();
|
|
}
|
|
|
|
void SerializeValue(object value) {
|
|
IList asList;
|
|
IDictionary asDict;
|
|
string asStr;
|
|
|
|
if (value == null) {
|
|
builder.Append("null");
|
|
} else if ((asStr = value as string) != null) {
|
|
SerializeString(asStr);
|
|
} else if (value is bool) {
|
|
builder.Append((bool) value ? "true" : "false");
|
|
} else if ((asList = value as IList) != null) {
|
|
SerializeArray(asList);
|
|
} else if ((asDict = value as IDictionary) != null) {
|
|
SerializeObject(asDict);
|
|
} else if (value is char) {
|
|
SerializeString(new string((char) value, 1));
|
|
} else {
|
|
SerializeOther(value);
|
|
}
|
|
}
|
|
|
|
void SerializeObject(IDictionary obj) {
|
|
bool first = true;
|
|
|
|
builder.Append('{');
|
|
|
|
foreach (object e in obj.Keys) {
|
|
if (!first) {
|
|
builder.Append(',');
|
|
}
|
|
|
|
SerializeString(e.ToString());
|
|
builder.Append(':');
|
|
|
|
SerializeValue(obj[e]);
|
|
|
|
first = false;
|
|
}
|
|
|
|
builder.Append('}');
|
|
}
|
|
|
|
void SerializeArray(IList anArray) {
|
|
builder.Append('[');
|
|
|
|
bool first = true;
|
|
|
|
foreach (object obj in anArray) {
|
|
if (!first) {
|
|
builder.Append(',');
|
|
}
|
|
|
|
SerializeValue(obj);
|
|
|
|
first = false;
|
|
}
|
|
|
|
builder.Append(']');
|
|
}
|
|
|
|
void SerializeString(string str) {
|
|
builder.Append('\"');
|
|
|
|
char[] charArray = str.ToCharArray();
|
|
foreach (var c in charArray) {
|
|
switch (c) {
|
|
case '"':
|
|
builder.Append("\\\"");
|
|
break;
|
|
case '\\':
|
|
builder.Append("\\\\");
|
|
break;
|
|
case '\b':
|
|
builder.Append("\\b");
|
|
break;
|
|
case '\f':
|
|
builder.Append("\\f");
|
|
break;
|
|
case '\n':
|
|
builder.Append("\\n");
|
|
break;
|
|
case '\r':
|
|
builder.Append("\\r");
|
|
break;
|
|
case '\t':
|
|
builder.Append("\\t");
|
|
break;
|
|
default:
|
|
int codepoint = Convert.ToInt32(c);
|
|
if ((codepoint >= 32) && (codepoint <= 126)) {
|
|
builder.Append(c);
|
|
} else {
|
|
builder.Append("\\u");
|
|
builder.Append(codepoint.ToString("x4"));
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
builder.Append('\"');
|
|
}
|
|
|
|
void SerializeOther(object value) {
|
|
// NOTE: decimals lose precision during serialization.
|
|
// They always have, I'm just letting you know.
|
|
// Previously floats and doubles lost precision too.
|
|
if (value is float) {
|
|
builder.Append(((float) value).ToString("R"));
|
|
} else if (value is int
|
|
|| value is uint
|
|
|| value is long
|
|
|| value is sbyte
|
|
|| value is byte
|
|
|| value is short
|
|
|| value is ushort
|
|
|| value is ulong) {
|
|
builder.Append(value);
|
|
} else if (value is double
|
|
|| value is decimal) {
|
|
builder.Append(Convert.ToDouble(value).ToString("R"));
|
|
} else {
|
|
SerializeString(value.ToString());
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|