added plupload
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Espen Antonsen
parent
feb0a3cb15
commit
0af092d7f7
120 changed files with 21049 additions and 0 deletions
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/*
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* $Id: JSONReader.cs 9 2007-05-27 10:47:07Z spocke $
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*
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* Copyright © 2007, Moxiecode Systems AB, All rights reserved.
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*/
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using System;
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using System.IO;
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using System.Text;
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using System.Collections;
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using System.Collections.Generic;
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namespace Moxiecode.Plupload.Utils {
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class Stack {
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private List<object> items;
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public Stack() {
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items = new List<object>();
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}
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public void Push(object item) {
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items.Add(item);
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}
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public object Pop() {
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object item = items[items.Count - 1];
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items.RemoveAt(items.Count - 1);
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return item;
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}
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}
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/// <summary>
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///
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/// </summary>
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public enum JsonLocation {
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/// <summary> </summary>
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InArray,
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/// <summary> </summary>
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InObject,
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/// <summary> </summary>
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Normal
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}
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/// <summary>
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///
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/// </summary>
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public enum JsonToken {
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/// <summary> </summary>
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Boolean,
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/// <summary> </summary>
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Integer,
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/// <summary> </summary>
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String,
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/// <summary> </summary>
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Null,
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/// <summary> </summary>
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Float,
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/// <summary> </summary>
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StartArray,
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/// <summary> </summary>
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EndArray,
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/// <summary> </summary>
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PropertyName,
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/// <summary> </summary>
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StartObject,
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/// <summary> </summary>
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EndObject
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}
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/// <summary>
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/// Description of JSONReader.
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/// </summary>
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public class JsonReader {
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private TextReader reader;
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private JsonToken token;
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private object val;
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private JsonLocation location;
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private Stack lastLocations;
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private bool needProp;
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/// <summary>
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///
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/// </summary>
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/// <param name="reader"></param>
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public JsonReader(TextReader reader) {
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this.reader = reader;
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this.val = null;
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this.token = JsonToken.Null;
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this.location = JsonLocation.Normal;
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this.lastLocations = new Stack();
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this.needProp = false;
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}
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public static object ParseJson(String json) {
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JsonReader reader = new JsonReader(new StringReader(json));
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return reader.ReadValue();
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}
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/// <summary>
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///
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/// </summary>
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public JsonLocation Location {
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get { return location; }
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}
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/// <summary>
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///
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/// </summary>
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public JsonToken TokenType {
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get {
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return this.token;
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}
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}
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/// <summary>
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///
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/// </summary>
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public object Value {
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get {
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return this.val;
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}
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}
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/// <summary>
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///
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/// </summary>
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/// <returns></returns>
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public bool Read() {
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int chr = this.reader.Read();
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if (chr != -1) {
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switch ((char) chr) {
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case '[':
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this.lastLocations.Push(this.location);
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this.location = JsonLocation.InArray;
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this.token = JsonToken.StartArray;
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this.val = null;
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this.ReadAway();
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return true;
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case ']':
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this.location = (JsonLocation)this.lastLocations.Pop();
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this.token = JsonToken.EndArray;
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this.val = null;
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this.ReadAway();
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if (this.location == JsonLocation.InObject)
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this.needProp = true;
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return true;
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case '{':
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this.lastLocations.Push(this.location);
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this.location = JsonLocation.InObject;
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this.needProp = true;
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this.token = JsonToken.StartObject;
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this.val = null;
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this.ReadAway();
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return true;
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case '}':
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this.location = (JsonLocation) this.lastLocations.Pop();
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this.token = JsonToken.EndObject;
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this.val = null;
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this.ReadAway();
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if (this.location == JsonLocation.InObject)
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this.needProp = true;
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return true;
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// String
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case '"':
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case '\'':
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return this.ReadString((char) chr);
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// Null
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case 'n':
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return this.ReadNull();
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// Bool
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case 't':
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case 'f':
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return this.ReadBool((char) chr);
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default:
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// Is number
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if (Char.IsNumber((char) chr) || (char) chr == '-' || (char) chr == '.')
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return this.ReadNumber((char) chr);
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return true;
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}
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}
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return false;
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}
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/// <summary>
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///
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/// </summary>
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/// <returns></returns>
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public override string ToString() {
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switch (this.token) {
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case JsonToken.Boolean:
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return "[Boolean] = " + ((bool) this.Value ? "true" : "false");
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case JsonToken.EndArray:
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return "[EndArray]";
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case JsonToken.EndObject:
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return "[EndObject]";
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case JsonToken.Float:
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return "[Float] = " + Convert.ToDouble(this.Value);
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case JsonToken.Integer:
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return "[Integer] = " + ((int) this.Value);
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case JsonToken.Null:
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return "[Null]";
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case JsonToken.StartArray:
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return "[StartArray]";
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case JsonToken.StartObject:
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return "[StartObject]";
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case JsonToken.String:
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return "[String]" + (string) this.Value;
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case JsonToken.PropertyName:
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return "[PropertyName]" + (string) this.Value;
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}
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return base.ToString();
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}
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#region private methods
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private bool ReadString(char quote) {
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StringBuilder buff = new StringBuilder();
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this.token = JsonToken.String;
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bool endString = false;
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int chr;
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while ((chr = this.reader.Peek()) != -1) {
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switch (chr) {
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case '\\':
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// Read away slash
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chr = this.reader.Read();
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// Read escape code
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chr = this.reader.Read();
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switch (chr) {
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case 't':
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buff.Append('\t');
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break;
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case 'b':
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buff.Append('\b');
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break;
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case 'f':
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buff.Append('\f');
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break;
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case 'r':
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buff.Append('\r');
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break;
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case 'n':
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buff.Append('\n');
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break;
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case 'u':
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buff.Append((char) Convert.ToInt32(ReadLen(4), 16));
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break;
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default:
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buff.Append((char) chr);
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break;
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}
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break;
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case '\'':
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case '"':
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if (chr == quote)
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endString = true;
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chr = this.reader.Read();
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if (chr != -1 && chr != quote)
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buff.Append((char) chr);
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break;
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default:
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buff.Append((char) this.reader.Read());
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break;
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}
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// String terminated
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if (endString)
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break;
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}
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this.ReadAway();
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this.val = buff.ToString();
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// Needed a property
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if (this.needProp) {
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this.token = JsonToken.PropertyName;
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this.needProp = false;
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return true;
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}
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if (this.location == JsonLocation.InObject && !this.needProp)
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this.needProp = true;
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return true;
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}
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private bool ReadNull() {
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this.token = JsonToken.Null;
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this.val = null;
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this.ReadAway(3); // ull
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this.ReadAway();
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if (this.location == JsonLocation.InObject && !this.needProp)
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this.needProp = true;
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return true;
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}
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private bool ReadNumber(char start) {
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StringBuilder buff = new StringBuilder();
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int chr;
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bool isFloat = false;
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this.token = JsonToken.Integer;
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buff.Append(start);
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while ((chr = this.reader.Peek()) != -1) {
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if (Char.IsNumber((char) chr) || (char) chr == '-' || (char) chr == '.') {
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if (((char) chr) == '.')
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isFloat = true;
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buff.Append((char) this.reader.Read());
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} else
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break;
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}
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this.ReadAway();
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if (isFloat) {
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this.token = JsonToken.Float;
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this.val = Convert.ToDouble(buff.ToString().Replace('.', ','));
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} else
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this.val = Convert.ToInt32(buff.ToString());
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if (this.location == JsonLocation.InObject && !this.needProp)
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this.needProp = true;
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return true;
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}
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private bool ReadBool(char chr) {
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this.token = JsonToken.Boolean;
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this.val = chr == 't';
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if (chr == 't')
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this.ReadAway(3); // rue
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else
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this.ReadAway(4); // alse
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this.ReadAway();
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if (this.location == JsonLocation.InObject && !this.needProp)
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this.needProp = true;
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return true;
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}
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private void ReadAway() {
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int chr;
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while ((chr = this.reader.Peek()) != -1) {
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if (chr != ':' && chr != ',' && !Char.IsWhiteSpace((char) chr))
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break;
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this.reader.Read();
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}
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}
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private string ReadLen(int num) {
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StringBuilder buff = new StringBuilder();
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int chr;
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for (int i=0; i<num && (chr = this.reader.Read()) != -1; i++)
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buff.Append((char) chr);
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return buff.ToString();
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}
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private void ReadAway(int num) {
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for (int i=0; i<num && this.reader.Read() != -1; i++) ;
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}
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private object ReadValue() {
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Stack parents = new Stack();
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object cur = null;
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string key = null;
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object obj;
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while (this.Read()) {
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switch (this.TokenType) {
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case JsonToken.Boolean:
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case JsonToken.Integer:
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case JsonToken.String:
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case JsonToken.Float:
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case JsonToken.Null:
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if (cur is Dictionary<string, object>) {
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((Dictionary<string, object>)cur)[key] = this.Value;
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} else if (cur is List<object>)
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((List<object>) cur).Add(this.Value);
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else
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return this.Value;
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break;
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case JsonToken.PropertyName:
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key = (string) this.Value;
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break;
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case JsonToken.StartArray:
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case JsonToken.StartObject:
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if (this.TokenType == JsonToken.StartObject) {
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obj = new Dictionary<string, object>();
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} else {
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obj = new List<object>();
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}
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if (cur is Dictionary<string, object>) {
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((Dictionary<string, object>)cur)[key] = obj;
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} else if (cur is List<object>) {
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((List<object>)cur).Add(obj);
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}
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parents.Push(cur);
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cur = obj;
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break;
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case JsonToken.EndArray:
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case JsonToken.EndObject:
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obj = parents.Pop();
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if (obj != null)
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cur = obj;
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break;
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}
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}
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return cur;
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}
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#endregion
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}
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}
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