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spine-csharp now uses SharpJson

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This commit is contained in:
pharan 2016-02-15 09:55:00 +08:00
parent 4c69881c2f
commit 777fb110e8
2 changed files with 503 additions and 524 deletions
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532
spine-csharp/src/Json.cs
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@ -1,533 +1,17 @@
/*
* Copyright (c) 2012 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.IO;
using System.Text;
using System.Globalization;
namespace Spine { namespace Spine {
// 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']: " + (float) dict["float"]);
// 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 floats.
/// </summary>
public static class Json { public static class Json {
/// <summary>
/// Parses the string json into a value static readonly SharpJson.JsonDecoder parser;
/// </summary>
/// <param name="json">A JSON string.</param> static Json () {
/// <returns>An List&lt;object&gt;, a Dictionary&lt;string, object&gt;, a float, an integer,a string, null, true, or false</returns> parser = new SharpJson.JsonDecoder();
public static object Deserialize (TextReader json) { parser.parseNumbersAsFloat = true;
if (json == null) {
return null;
}
return Parser.Parse(json);
} }
sealed class Parser : IDisposable { public static object Deserialize (TextReader text) {
const string WHITE_SPACE = " \t\n\r"; return parser.Decode(text.ReadToEnd());
const string WORD_BREAK = " \t\n\r{}[],:\"";
enum TOKEN {
NONE,
CURLY_OPEN,
CURLY_CLOSE,
SQUARED_OPEN,
SQUARED_CLOSE,
COLON,
COMMA,
STRING,
NUMBER,
TRUE,
FALSE,
NULL
};
TextReader json;
Parser (TextReader reader) {
json = reader;
}
public static object Parse (TextReader reader) {
using (var instance = new Parser(reader)) {
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 StringBuilder();
for (int i = 0; i < 4; i++) {
hex.Append(NextChar);
}
s.Append((char)Convert.ToInt32(hex.ToString(), 16));
break;
}
break;
default:
s.Append(c);
break;
}
}
return s.ToString();
}
object ParseNumber () {
string number = NextWord;
float parsedFloat;
float.TryParse(number, NumberStyles.Float, CultureInfo.InvariantCulture, out parsedFloat);
return parsedFloat;
}
void EatWhitespace () {
while (WHITE_SPACE.IndexOf(PeekChar) != -1) {
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 (WORD_BREAK.IndexOf(PeekChar) == -1) {
word.Append(NextChar);
if (json.Peek() == -1) {
break;
}
}
return word.ToString();
}
}
TOKEN NextToken {
get {
EatWhitespace();
if (json.Peek() == -1) {
return TOKEN.NONE;
}
char c = PeekChar;
switch (c) {
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;
}
string word = NextWord;
switch (word) {
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&lt;string, object&gt; / List&lt;object&gt;</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(value.ToString().ToLower());
} else if ((asList = value as IList) != null) {
SerializeArray(asList);
} else if ((asDict = value as IDictionary) != null) {
SerializeObject(asDict);
} else if (value is char) {
SerializeString(value.ToString());
} 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" + Convert.ToString(codepoint, 16).PadLeft(4, '0'));
}
break;
}
}
builder.Append('\"');
}
void SerializeOther (object value) {
if (value is float
|| value is int
|| value is uint
|| value is long
|| value is float
|| value is sbyte
|| value is byte
|| value is short
|| value is ushort
|| value is ulong
|| value is decimal) {
builder.Append(value.ToString());
} else {
SerializeString(value.ToString());
}
}
} }
} }
} }

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spine-csharp/src/SharpJson.cs Normal file
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@ -0,0 +1,495 @@
/**
*
* Copyright (c) 2016 Adriano Tinoco d'Oliveira Rezende
*
* Based on the JSON parser by Patrick van Bergen
* http://techblog.procurios.nl/k/news/view/14605/14863/how-do-i-write-my-own-parser-(for-json).html
*
* Changes made:
*
* - Optimized parser speed (deserialize roughly near 3x faster than original)
* - Added support to handle lexer/parser error messages with line numbers
* - Added more fine grained control over type conversions during the parsing
* - Refactory API (Separate Lexer code from Parser code and the Encoder from Decoder)
*
*
* 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.Text;
using System.Collections;
using System.Globalization;
using System.Collections.Generic;
namespace SharpJson
{
class Lexer
{
public enum Token {
None,
Null,
True,
False,
Colon,
Comma,
String,
Number,
CurlyOpen,
CurlyClose,
SquaredOpen,
SquaredClose,
};
public bool hasError {
get {
return !success;
}
}
public int lineNumber {
get;
private set;
}
public bool parseNumbersAsFloat {
get;
set;
}
char[] json;
int index = 0;
bool success = true;
char[] stringBuffer = new char[4096];
public Lexer(string text)
{
Reset();
json = text.ToCharArray();
parseNumbersAsFloat = false;
}
public void Reset()
{
index = 0;
lineNumber = 1;
success = true;
}
public string ParseString()
{
int idx = 0;
StringBuilder builder = null;
SkipWhiteSpaces();
// "
char c = json[index++];
bool failed = false;
bool complete = false;
while (!complete && !failed) {
if (index == json.Length)
break;
c = json[index++];
if (c == '"') {
complete = true;
break;
} else if (c == '\\') {
if (index == json.Length)
break;
c = json[index++];
switch (c) {
case '"':
stringBuffer[idx++] = '"';
break;
case '\\':
stringBuffer[idx++] = '\\';
break;
case '/':
stringBuffer[idx++] = '/';
break;
case 'b':
stringBuffer[idx++] = '\b';
break;
case'f':
stringBuffer[idx++] = '\f';
break;
case 'n':
stringBuffer[idx++] = '\n';
break;
case 'r':
stringBuffer[idx++] = '\r';
break;
case 't':
stringBuffer[idx++] = '\t';
break;
case 'u':
int remainingLength = json.Length - index;
if (remainingLength >= 4) {
var hex = new string(json, index, 4);
// XXX: handle UTF
stringBuffer[idx++] = (char) Convert.ToInt32(hex, 16);
// skip 4 chars
index += 4;
} else {
failed = true;
}
break;
}
} else {
stringBuffer[idx++] = c;
}
if (idx >= stringBuffer.Length) {
if (builder == null)
builder = new StringBuilder();
builder.Append(stringBuffer, 0, idx);
idx = 0;
}
}
if (!complete) {
success = false;
return null;
}
if (builder != null)
return builder.ToString ();
else
return new string (stringBuffer, 0, idx);
}
string GetNumberString()
{
SkipWhiteSpaces();
int lastIndex = GetLastIndexOfNumber(index);
int charLength = (lastIndex - index) + 1;
var result = new string (json, index, charLength);
index = lastIndex + 1;
return result;
}
public float ParseFloatNumber()
{
float number;
var str = GetNumberString ();
if (!float.TryParse (str, NumberStyles.Float, CultureInfo.InvariantCulture, out number))
return 0;
return number;
}
public double ParseDoubleNumber()
{
double number;
var str = GetNumberString ();
if (!double.TryParse(str, NumberStyles.Any, CultureInfo.InvariantCulture, out number))
return 0;
return number;
}
int GetLastIndexOfNumber(int index)
{
int lastIndex;
for (lastIndex = index; lastIndex < json.Length; lastIndex++) {
char ch = json[lastIndex];
if ((ch < '0' || ch > '9') && ch != '+' && ch != '-'
&& ch != '.' && ch != 'e' && ch != 'E')
break;
}
return lastIndex - 1;
}
void SkipWhiteSpaces()
{
for (; index < json.Length; index++) {
char ch = json[index];
if (ch == '\n')
lineNumber++;
if (!char.IsWhiteSpace(json[index]))
break;
}
}
public Token LookAhead()
{
SkipWhiteSpaces();
int savedIndex = index;
return NextToken(json, ref savedIndex);
}
public Token NextToken()
{
SkipWhiteSpaces();
return NextToken(json, ref index);
}
static Token NextToken(char[] json, ref int index)
{
if (index == json.Length)
return Token.None;
char c = json[index++];
switch (c) {
case '{':
return Token.CurlyOpen;
case '}':
return Token.CurlyClose;
case '[':
return Token.SquaredOpen;
case ']':
return Token.SquaredClose;
case ',':
return Token.Comma;
case '"':
return Token.String;
case '0': case '1': case '2': case '3': case '4':
case '5': case '6': case '7': case '8': case '9':
case '-':
return Token.Number;
case ':':
return Token.Colon;
}
index--;
int remainingLength = json.Length - index;
// false
if (remainingLength >= 5) {
if (json[index] == 'f' &&
json[index + 1] == 'a' &&
json[index + 2] == 'l' &&
json[index + 3] == 's' &&
json[index + 4] == 'e') {
index += 5;
return Token.False;
}
}
// true
if (remainingLength >= 4) {
if (json[index] == 't' &&
json[index + 1] == 'r' &&
json[index + 2] == 'u' &&
json[index + 3] == 'e') {
index += 4;
return Token.True;
}
}
// null
if (remainingLength >= 4) {
if (json[index] == 'n' &&
json[index + 1] == 'u' &&
json[index + 2] == 'l' &&
json[index + 3] == 'l') {
index += 4;
return Token.Null;
}
}
return Token.None;
}
}
public class JsonDecoder
{
public string errorMessage {
get;
private set;
}
public bool parseNumbersAsFloat {
get;
set;
}
Lexer lexer;
public JsonDecoder()
{
errorMessage = null;
parseNumbersAsFloat = false;
}
public object Decode(string text)
{
errorMessage = null;
lexer = new Lexer(text);
lexer.parseNumbersAsFloat = parseNumbersAsFloat;
return ParseValue();
}
public static object DecodeText(string text)
{
var builder = new JsonDecoder();
return builder.Decode(text);
}
IDictionary<string, object> ParseObject()
{
var table = new Dictionary<string, object>();
// {
lexer.NextToken();
while (true) {
var token = lexer.LookAhead();
switch (token) {
case Lexer.Token.None:
TriggerError("Invalid token");
return null;
case Lexer.Token.Comma:
lexer.NextToken();
break;
case Lexer.Token.CurlyClose:
lexer.NextToken();
return table;
default:
// name
string name = EvalLexer(lexer.ParseString());
if (errorMessage != null)
return null;
// :
token = lexer.NextToken();
if (token != Lexer.Token.Colon) {
TriggerError("Invalid token; expected ':'");
return null;
}
// value
object value = ParseValue();
if (errorMessage != null)
return null;
table[name] = value;
break;
}
}
//return null; // Unreachable code
}
IList<object> ParseArray()
{
var array = new List<object>();
// [
lexer.NextToken();
while (true) {
var token = lexer.LookAhead();
switch (token) {
case Lexer.Token.None:
TriggerError("Invalid token");
return null;
case Lexer.Token.Comma:
lexer.NextToken();
break;
case Lexer.Token.SquaredClose:
lexer.NextToken();
return array;
default:
object value = ParseValue();
if (errorMessage != null)
return null;
array.Add(value);
break;
}
}
//return null; // Unreachable code
}
object ParseValue()
{
switch (lexer.LookAhead()) {
case Lexer.Token.String:
return EvalLexer(lexer.ParseString());
case Lexer.Token.Number:
if (parseNumbersAsFloat)
return EvalLexer(lexer.ParseFloatNumber());
else
return EvalLexer(lexer.ParseDoubleNumber());
case Lexer.Token.CurlyOpen:
return ParseObject();
case Lexer.Token.SquaredOpen:
return ParseArray();
case Lexer.Token.True:
lexer.NextToken();
return true;
case Lexer.Token.False:
lexer.NextToken();
return false;
case Lexer.Token.Null:
lexer.NextToken();
return null;
case Lexer.Token.None:
break;
}
TriggerError("Unable to parse value");
return null;
}
void TriggerError(string message)
{
errorMessage = string.Format("Error: '{0}' at line {1}",
message, lexer.lineNumber);
}
T EvalLexer<T>(T value)
{
if (lexer.hasError)
TriggerError("Lexical error ocurred");
return value;
}
}
}