Pruned empty files, moved JSON files to a new dir, updated MSVC solution files

git-svn-id: http://libopenmetaverse.googlecode.com/svn/trunk@103 52acb1d6-8a22-11de-b505-999d5b087335
This commit is contained in:
John Hurliman
2006-07-28 14:54:49 +00:00
parent 11a68287ba
commit 5d11fedced
17 changed files with 80 additions and 327 deletions

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using System;
using System.Collections;
using System.Text;
namespace Nii.JSON
{
/// <summary>
/// <para>
/// A JSONArray is an ordered sequence of values. Its external form is a string
/// wrapped in square brackets with commas between the values. The internal form
/// is an object having get() and opt() methods for accessing the values by
/// index, and put() methods for adding or replacing values. The values can be
/// any of these types: Boolean, JSONArray, JSONObject, Number, String, or the
/// JSONObject.NULL object.
/// </para>
/// <para>
/// The constructor can convert a JSON external form string into an
/// internal form Java object. The toString() method creates an external
/// form string.
/// </para>
/// <para>
/// A get() method returns a value if one can be found, and throws an exception
/// if one cannot be found. An opt() method returns a default value instead of
/// throwing an exception, and so is useful for obtaining optional values.
/// </para>
/// <para>
/// The generic get() and opt() methods return an object which you can cast or
/// query for type. There are also typed get() and opt() methods that do typing
/// checking and type coersion for you.
///</para>
/// <para>
/// The texts produced by the toString() methods are very strict.
/// The constructors are more forgiving in the texts they will accept.
/// </para>
/// <para>
/// <list type="bullet">
/// <item><description>An extra comma may appear just before the closing bracket.</description></item>
/// <item><description>Strings may be quoted with single quotes.</description></item>
/// <item><description>Strings do not need to be quoted at all if they do not contain leading
/// or trailing spaces, and if they do not contain any of these characters:
/// { } [ ] / \ : , </description></item>
/// <item><description>Numbers may have the 0- (octal) or 0x- (hex) prefix.</description></item>
/// </list>
/// </para>
/// <para>
/// Public Domain 2002 JSON.org
/// @author JSON.org
/// @version 0.1
///</para>
/// Ported to C# by Are Bjolseth, teleplan.no
/// TODO:
/// 1. Implement Custom exceptions
/// 2. Add indexer JSONObject[i] = object, and object = JSONObject[i];
/// 3. Add indexer JSONObject["key"] = object, and object = JSONObject["key"]
/// 4. Add unit testing
/// 5. Add log4net
/// 6. Make get/put methods private, to force use of indexer instead?
/// </summary>
public class JSONArray
{
/// <summary>The ArrayList where the JSONArray's properties are kept.</summary>
private ArrayList myArrayList;
/// <summary>
/// Construct an empty JSONArray
/// </summary>
public JSONArray()
{
myArrayList = new ArrayList();
}
/// <summary>
/// Construct a JSONArray from a JSONTokener.
/// </summary>
/// <param name="x">A JSONTokener</param>
public JSONArray(JSONTokener x) : this()
{
if (x.nextClean() != '[')
{
throw new Exception("A JSONArray must start with '['");
}
if (x.nextClean() == ']')
{
return;
}
x.back();
while (true)
{
myArrayList.Add(x.nextObject());
switch (x.nextClean())
{
case ',':
if (x.nextClean() == ']')
{
return;
}
x.back();
break;
case ']':
return;
default:
throw new Exception("Expected a ',' or ']'");
}
}
}
/// <summary>
/// Alternate to Java get/put method, by using indexer
/// </summary>
public object this[int i]
{
get
{
return opt(i);
}
set
{
//myArrayList[i] = value;
put(i, value);
}
}
/// <summary>
/// Get the optional object value associated with an index.
/// </summary>
/// <param name="i">index subscript</param>
/// <returns>object at that index.</returns>
public object opt(int i)
{
if (i < 0 || i >= myArrayList.Count)
throw new ArgumentOutOfRangeException("int i", i, "Index out of bounds!");
return myArrayList[i];
}
/// <summary>
/// Put or replace a boolean value in the JSONArray.
/// </summary>
/// <param name="i">
/// The subscript. If the index is greater than the length of
/// the JSONArray, then null elements will be added as necessary to pad it out.
/// </param>
/// <param name="val">An object value.</param>
/// <returns>this (JSONArray)</returns>
public JSONArray put(int i, object val)
{
if (i < 0)
{
throw new ArgumentOutOfRangeException("i", i, "Negative indexes illegal");
}
else if (val == null)
{
throw new ArgumentNullException("val", "Object cannt be null");
}
else if (i < myArrayList.Count)
{
myArrayList.Insert(i, val);
}
// NOTE! Since i is >= Count, fill null vals before index i, then append new object at i
else
{
while (i != myArrayList.Count)
{
myArrayList.Add(null);
}
myArrayList.Add(val);
}
return this;
}
}
}