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* Moved OpenMetaverse.StructuredData to a separate library

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* Added experimental JSON serialization/deserialization to OSD using LitJSON (works, but subject to change soon)
* Moved packet handling code out of Simian.cs

git-svn-id: http://libopenmetaverse.googlecode.com/svn/libopenmetaverse/trunk@2361 52acb1d6-8a22-11de-b505-999d5b087335
This commit is contained in:
John Hurliman
2008-11-18 03:16:38 +00:00
parent 8e84377b22
commit 5fbcd0c4d6
19 changed files with 4080 additions and 28 deletions
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60
OpenMetaverse.StructuredData/JSON/IJsonWrapper.cs Normal file
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#region Header
/**
* IJsonWrapper.cs
* Interface that represents a type capable of handling all kinds of JSON
* data. This is mainly used when mapping objects through JsonMapper, and
* it's implemented by JsonData.
*
* The authors disclaim copyright to this source code. For more details, see
* the COPYING file included with this distribution.
**/
#endregion
using System.Collections;
using System.Collections.Specialized;
namespace LitJson
{
public enum JsonType
{
None,
Object,
Array,
String,
Int,
Long,
Double,
Boolean
}
public interface IJsonWrapper : IList, IOrderedDictionary
{
bool IsArray { get; }
bool IsBoolean { get; }
bool IsDouble { get; }
bool IsInt { get; }
bool IsLong { get; }
bool IsObject { get; }
bool IsString { get; }
bool GetBoolean ();
double GetDouble ();
int GetInt ();
JsonType GetJsonType ();
long GetLong ();
string GetString ();
void SetBoolean (bool val);
void SetDouble (double val);
void SetInt (int val);
void SetJsonType (JsonType type);
void SetLong (long val);
void SetString (string val);
string ToJson ();
void ToJson (JsonWriter writer);
}
}

993
OpenMetaverse.StructuredData/JSON/JsonData.cs Normal file
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#region Header
/**
* JsonData.cs
* Generic type to hold JSON data (objects, arrays, and so on). This is
* the default type returned by JsonMapper.ToObject().
*
* The authors disclaim copyright to this source code. For more details, see
* the COPYING file included with this distribution.
**/
#endregion
using System;
using System.Collections;
using System.Collections.Generic;
using System.Collections.Specialized;
using System.IO;
namespace LitJson
{
public class JsonData : IJsonWrapper, IEquatable<JsonData>
{
#region Fields
private IList<JsonData> inst_array;
private bool inst_boolean;
private double inst_double;
private int inst_int;
private long inst_long;
private IDictionary<string, JsonData> inst_object;
private string inst_string;
private string json;
private JsonType type;
// Used to implement the IOrderedDictionary interface
private IList<KeyValuePair<string, JsonData>> object_list;
#endregion
#region Properties
public int Count {
get { return EnsureCollection ().Count; }
}
public bool IsArray {
get { return type == JsonType.Array; }
}
public bool IsBoolean {
get { return type == JsonType.Boolean; }
}
public bool IsDouble {
get { return type == JsonType.Double; }
}
public bool IsInt {
get { return type == JsonType.Int; }
}
public bool IsLong {
get { return type == JsonType.Long; }
}
public bool IsObject {
get { return type == JsonType.Object; }
}
public bool IsString {
get { return type == JsonType.String; }
}
#endregion
#region ICollection Properties
int ICollection.Count {
get {
return Count;
}
}
bool ICollection.IsSynchronized {
get {
return EnsureCollection ().IsSynchronized;
}
}
object ICollection.SyncRoot {
get {
return EnsureCollection ().SyncRoot;
}
}
#endregion
#region IDictionary Properties
bool IDictionary.IsFixedSize {
get {
return EnsureDictionary ().IsFixedSize;
}
}
bool IDictionary.IsReadOnly {
get {
return EnsureDictionary ().IsReadOnly;
}
}
ICollection IDictionary.Keys {
get {
EnsureDictionary ();
IList<string> keys = new List<string> ();
foreach (KeyValuePair<string, JsonData> entry in
object_list) {
keys.Add (entry.Key);
}
return (ICollection) keys;
}
}
ICollection IDictionary.Values {
get {
EnsureDictionary ();
IList<JsonData> values = new List<JsonData> ();
foreach (KeyValuePair<string, JsonData> entry in
object_list) {
values.Add (entry.Value);
}
return (ICollection) values;
}
}
#endregion
#region IJsonWrapper Properties
bool IJsonWrapper.IsArray {
get { return IsArray; }
}
bool IJsonWrapper.IsBoolean {
get { return IsBoolean; }
}
bool IJsonWrapper.IsDouble {
get { return IsDouble; }
}
bool IJsonWrapper.IsInt {
get { return IsInt; }
}
bool IJsonWrapper.IsLong {
get { return IsLong; }
}
bool IJsonWrapper.IsObject {
get { return IsObject; }
}
bool IJsonWrapper.IsString {
get { return IsString; }
}
#endregion
#region IList Properties
bool IList.IsFixedSize {
get {
return EnsureList ().IsFixedSize;
}
}
bool IList.IsReadOnly {
get {
return EnsureList ().IsReadOnly;
}
}
#endregion
#region IDictionary Indexer
object IDictionary.this[object key] {
get {
return EnsureDictionary ()[key];
}
set {
if (! (key is String))
throw new ArgumentException (
"The key has to be a string");
JsonData data = ToJsonData (value);
this[(string) key] = data;
}
}
#endregion
#region IOrderedDictionary Indexer
object IOrderedDictionary.this[int idx] {
get {
EnsureDictionary ();
return object_list[idx].Value;
}
set {
EnsureDictionary ();
JsonData data = ToJsonData (value);
KeyValuePair<string, JsonData> old_entry = object_list[idx];
inst_object[old_entry.Key] = data;
KeyValuePair<string, JsonData> entry =
new KeyValuePair<string, JsonData> (old_entry.Key, data);
object_list[idx] = entry;
}
}
#endregion
#region IList Indexer
object IList.this[int index] {
get {
return EnsureList ()[index];
}
set {
EnsureList ();
JsonData data = ToJsonData (value);
this[index] = data;
}
}
#endregion
#region Public Indexers
public JsonData this[string prop_name] {
get {
EnsureDictionary ();
return inst_object[prop_name];
}
set {
EnsureDictionary ();
KeyValuePair<string, JsonData> entry =
new KeyValuePair<string, JsonData> (prop_name, value);
if (inst_object.ContainsKey (prop_name)) {
for (int i = 0; i < object_list.Count; i++) {
if (object_list[i].Key == prop_name) {
object_list[i] = entry;
break;
}
}
} else
object_list.Add (entry);
inst_object[prop_name] = value;
json = null;
}
}
public JsonData this[int index] {
get {
EnsureCollection ();
if (type == JsonType.Array)
return inst_array[index];
return object_list[index].Value;
}
set {
EnsureCollection ();
if (type == JsonType.Array)
inst_array[index] = value;
else {
KeyValuePair<string, JsonData> entry = object_list[index];
KeyValuePair<string, JsonData> new_entry =
new KeyValuePair<string, JsonData> (entry.Key, value);
object_list[index] = new_entry;
inst_object[entry.Key] = value;
}
json = null;
}
}
#endregion
#region Constructors
public JsonData ()
{
}
public JsonData (bool boolean)
{
type = JsonType.Boolean;
inst_boolean = boolean;
}
public JsonData (double number)
{
type = JsonType.Double;
inst_double = number;
}
public JsonData (int number)
{
type = JsonType.Int;
inst_int = number;
}
public JsonData (long number)
{
type = JsonType.Long;
inst_long = number;
}
public JsonData (object obj)
{
if (obj is Boolean) {
type = JsonType.Boolean;
inst_boolean = (bool) obj;
return;
}
if (obj is Double) {
type = JsonType.Double;
inst_double = (double) obj;
return;
}
if (obj is Int32) {
type = JsonType.Int;
inst_int = (int) obj;
return;
}
if (obj is Int64) {
type = JsonType.Long;
inst_long = (long) obj;
return;
}
if (obj is String) {
type = JsonType.String;
inst_string = (string) obj;
return;
}
throw new ArgumentException (
"Unable to wrap the given object with JsonData");
}
public JsonData (string str)
{
type = JsonType.String;
inst_string = str;
}
#endregion
#region Implicit Conversions
public static implicit operator JsonData (Boolean data)
{
return new JsonData (data);
}
public static implicit operator JsonData (Double data)
{
return new JsonData (data);
}
public static implicit operator JsonData (Int32 data)
{
return new JsonData (data);
}
public static implicit operator JsonData (Int64 data)
{
return new JsonData (data);
}
public static implicit operator JsonData (String data)
{
return new JsonData (data);
}
#endregion
#region Explicit Conversions
public static explicit operator Boolean (JsonData data)
{
if (data.type != JsonType.Boolean)
throw new InvalidCastException (
"Instance of JsonData doesn't hold a double");
return data.inst_boolean;
}
public static explicit operator Double (JsonData data)
{
if (data.type != JsonType.Double)
throw new InvalidCastException (
"Instance of JsonData doesn't hold a double");
return data.inst_double;
}
public static explicit operator Int32 (JsonData data)
{
if (data.type != JsonType.Int)
throw new InvalidCastException (
"Instance of JsonData doesn't hold an int");
return data.inst_int;
}
public static explicit operator Int64 (JsonData data)
{
if (data.type != JsonType.Long)
throw new InvalidCastException (
"Instance of JsonData doesn't hold an int");
return data.inst_long;
}
public static explicit operator String (JsonData data)
{
if (data.type != JsonType.String)
throw new InvalidCastException (
"Instance of JsonData doesn't hold a string");
return data.inst_string;
}
#endregion
#region ICollection Methods
void ICollection.CopyTo (Array array, int index)
{
EnsureCollection ().CopyTo (array, index);
}
#endregion
#region IDictionary Methods
void IDictionary.Add (object key, object value)
{
JsonData data = ToJsonData (value);
EnsureDictionary ().Add (key, data);
KeyValuePair<string, JsonData> entry =
new KeyValuePair<string, JsonData> ((string) key, data);
object_list.Add (entry);
json = null;
}
void IDictionary.Clear ()
{
EnsureDictionary ().Clear ();
object_list.Clear ();
json = null;
}
bool IDictionary.Contains (object key)
{
return EnsureDictionary ().Contains (key);
}
IDictionaryEnumerator IDictionary.GetEnumerator ()
{
return ((IOrderedDictionary) this).GetEnumerator ();
}
void IDictionary.Remove (object key)
{
EnsureDictionary ().Remove (key);
for (int i = 0; i < object_list.Count; i++) {
if (object_list[i].Key == (string) key) {
object_list.RemoveAt (i);
break;
}
}
json = null;
}
#endregion
#region IEnumerable Methods
IEnumerator IEnumerable.GetEnumerator ()
{
return EnsureCollection ().GetEnumerator ();
}
#endregion
#region IJsonWrapper Methods
bool IJsonWrapper.GetBoolean ()
{
if (type != JsonType.Boolean)
throw new InvalidOperationException (
"JsonData instance doesn't hold a boolean");
return inst_boolean;
}
double IJsonWrapper.GetDouble ()
{
if (type != JsonType.Double)
throw new InvalidOperationException (
"JsonData instance doesn't hold a double");
return inst_double;
}
int IJsonWrapper.GetInt ()
{
if (type != JsonType.Int)
throw new InvalidOperationException (
"JsonData instance doesn't hold an int");
return inst_int;
}
long IJsonWrapper.GetLong ()
{
if (type != JsonType.Long)
throw new InvalidOperationException (
"JsonData instance doesn't hold a long");
return inst_long;
}
string IJsonWrapper.GetString ()
{
if (type != JsonType.String)
throw new InvalidOperationException (
"JsonData instance doesn't hold a string");
return inst_string;
}
void IJsonWrapper.SetBoolean (bool val)
{
type = JsonType.Boolean;
inst_boolean = val;
json = null;
}
void IJsonWrapper.SetDouble (double val)
{
type = JsonType.Double;
inst_double = val;
json = null;
}
void IJsonWrapper.SetInt (int val)
{
type = JsonType.Int;
inst_int = val;
json = null;
}
void IJsonWrapper.SetLong (long val)
{
type = JsonType.Long;
inst_long = val;
json = null;
}
void IJsonWrapper.SetString (string val)
{
type = JsonType.String;
inst_string = val;
json = null;
}
string IJsonWrapper.ToJson ()
{
return ToJson ();
}
void IJsonWrapper.ToJson (JsonWriter writer)
{
ToJson (writer);
}
#endregion
#region IList Methods
int IList.Add (object value)
{
return Add (value);
}
void IList.Clear ()
{
EnsureList ().Clear ();
json = null;
}
bool IList.Contains (object value)
{
return EnsureList ().Contains (value);
}
int IList.IndexOf (object value)
{
return EnsureList ().IndexOf (value);
}
void IList.Insert (int index, object value)
{
EnsureList ().Insert (index, value);
json = null;
}
void IList.Remove (object value)
{
EnsureList ().Remove (value);
json = null;
}
void IList.RemoveAt (int index)
{
EnsureList ().RemoveAt (index);
json = null;
}
#endregion
#region IOrderedDictionary Methods
IDictionaryEnumerator IOrderedDictionary.GetEnumerator ()
{
EnsureDictionary ();
return new OrderedDictionaryEnumerator (
object_list.GetEnumerator ());
}
void IOrderedDictionary.Insert (int idx, object key, object value)
{
string property = (string) key;
JsonData data = ToJsonData (value);
this[property] = data;
KeyValuePair<string, JsonData> entry =
new KeyValuePair<string, JsonData> (property, data);
object_list.Insert (idx, entry);
}
void IOrderedDictionary.RemoveAt (int idx)
{
EnsureDictionary ();
inst_object.Remove (object_list[idx].Key);
object_list.RemoveAt (idx);
}
#endregion
#region Private Methods
private ICollection EnsureCollection ()
{
if (type == JsonType.Array)
return (ICollection) inst_array;
if (type == JsonType.Object)
return (ICollection) inst_object;
throw new InvalidOperationException (
"The JsonData instance has to be initialized first");
}
private IDictionary EnsureDictionary ()
{
if (type == JsonType.Object)
return (IDictionary) inst_object;
if (type != JsonType.None)
throw new InvalidOperationException (
"Instance of JsonData is not a dictionary");
type = JsonType.Object;
inst_object = new Dictionary<string, JsonData> ();
object_list = new List<KeyValuePair<string, JsonData>> ();
return (IDictionary) inst_object;
}
private IList EnsureList ()
{
if (type == JsonType.Array)
return (IList) inst_array;
if (type != JsonType.None)
throw new InvalidOperationException (
"Instance of JsonData is not a list");
type = JsonType.Array;
inst_array = new List<JsonData> ();
return (IList) inst_array;
}
private JsonData ToJsonData (object obj)
{
if (obj == null)
return null;
if (obj is JsonData)
return (JsonData) obj;
return new JsonData (obj);
}
private static void WriteJson (IJsonWrapper obj, JsonWriter writer)
{
if (obj.IsString) {
writer.Write (obj.GetString ());
return;
}
if (obj.IsBoolean) {
writer.Write (obj.GetBoolean ());
return;
}
if (obj.IsDouble) {
writer.Write (obj.GetDouble ());
return;
}
if (obj.IsInt) {
writer.Write (obj.GetInt ());
return;
}
if (obj.IsLong) {
writer.Write (obj.GetLong ());
return;
}
if (obj.IsArray) {
writer.WriteArrayStart ();
foreach (object elem in (IList) obj)
WriteJson ((JsonData) elem, writer);
writer.WriteArrayEnd ();
return;
}
if (obj.IsObject) {
writer.WriteObjectStart ();
foreach (DictionaryEntry entry in ((IDictionary) obj)) {
writer.WritePropertyName ((string) entry.Key);
WriteJson ((JsonData) entry.Value, writer);
}
writer.WriteObjectEnd ();
return;
}
}
#endregion
public int Add (object value)
{
JsonData data = ToJsonData (value);
json = null;
return EnsureList ().Add (data);
}
public void Clear ()
{
if (IsObject) {
((IDictionary) this).Clear ();
return;
}
if (IsArray) {
((IList) this).Clear ();
return;
}
}
public bool Equals (JsonData x)
{
if (x == null)
return false;
if (x.type != this.type)
return false;
switch (this.type) {
case JsonType.None:
return true;
case JsonType.Object:
return this.inst_object.Equals (x.inst_object);
case JsonType.Array:
return this.inst_array.Equals (x.inst_array);
case JsonType.String:
return this.inst_string.Equals (x.inst_string);
case JsonType.Int:
return this.inst_int.Equals (x.inst_int);
case JsonType.Long:
return this.inst_long.Equals (x.inst_long);
case JsonType.Double:
return this.inst_double.Equals (x.inst_double);
case JsonType.Boolean:
return this.inst_boolean.Equals (x.inst_boolean);
}
return false;
}
public JsonType GetJsonType ()
{
return type;
}
public void SetJsonType (JsonType type)
{
if (this.type == type)
return;
switch (type) {
case JsonType.None:
break;
case JsonType.Object:
inst_object = new Dictionary<string, JsonData> ();
object_list = new List<KeyValuePair<string, JsonData>> ();
break;
case JsonType.Array:
inst_array = new List<JsonData> ();
break;
case JsonType.String:
inst_string = default (String);
break;
case JsonType.Int:
inst_int = default (Int32);
break;
case JsonType.Long:
inst_long = default (Int64);
break;
case JsonType.Double:
inst_double = default (Double);
break;
case JsonType.Boolean:
inst_boolean = default (Boolean);
break;
}
this.type = type;
}
public string ToJson ()
{
if (json != null)
return json;
StringWriter sw = new StringWriter ();
JsonWriter writer = new JsonWriter (sw);
writer.Validate = false;
WriteJson (this, writer);
json = sw.ToString ();
return json;
}
public void ToJson (JsonWriter writer)
{
bool old_validate = writer.Validate;
writer.Validate = false;
WriteJson (this, writer);
writer.Validate = old_validate;
}
public override string ToString ()
{
switch (type) {
case JsonType.Array:
return "JsonData array";
case JsonType.Boolean:
return inst_boolean.ToString ();
case JsonType.Double:
return inst_double.ToString ();
case JsonType.Int:
return inst_int.ToString ();
case JsonType.Long:
return inst_long.ToString ();
case JsonType.Object:
return "JsonData object";
case JsonType.String:
return inst_string;
}
return "Uninitialized JsonData";
}
}
internal class OrderedDictionaryEnumerator : IDictionaryEnumerator
{
IEnumerator<KeyValuePair<string, JsonData>> list_enumerator;
public object Current {
get { return Entry; }
}
public DictionaryEntry Entry {
get {
KeyValuePair<string, JsonData> curr = list_enumerator.Current;
return new DictionaryEntry (curr.Key, curr.Value);
}
}
public object Key {
get { return list_enumerator.Current.Key; }
}
public object Value {
get { return list_enumerator.Current.Value; }
}
public OrderedDictionaryEnumerator (
IEnumerator<KeyValuePair<string, JsonData>> enumerator)
{
list_enumerator = enumerator;
}
public bool MoveNext ()
{
return list_enumerator.MoveNext ();
}
public void Reset ()
{
list_enumerator.Reset ();
}
}
}

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OpenMetaverse.StructuredData/JSON/JsonException.cs Normal file
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#region Header
/**
* JsonException.cs
* Base class throwed by LitJSON when a parsing error occurs.
*
* The authors disclaim copyright to this source code. For more details, see
* the COPYING file included with this distribution.
**/
#endregion
using System;
namespace LitJson
{
public class JsonException : ApplicationException
{
public JsonException () : base ()
{
}
internal JsonException (ParserToken token) :
base (String.Format (
"Invalid token '{0}' in input string", token))
{
}
internal JsonException (ParserToken token,
Exception inner_exception) :
base (String.Format (
"Invalid token '{0}' in input string", token),
inner_exception)
{
}
internal JsonException (int c) :
base (String.Format (
"Invalid character '{0}' in input string", (char) c))
{
}
internal JsonException (int c, Exception inner_exception) :
base (String.Format (
"Invalid character '{0}' in input string", (char) c),
inner_exception)
{
}
public JsonException (string message) : base (message)
{
}
public JsonException (string message, Exception inner_exception) :
base (message, inner_exception)
{
}
}
}

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OpenMetaverse.StructuredData/JSON/JsonMapper.cs Normal file
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#region Header
/**
* JsonMapper.cs
* JSON to .Net object and object to JSON conversions.
*
* The authors disclaim copyright to this source code. For more details, see
* the COPYING file included with this distribution.
**/
#endregion
using System;
using System.Collections;
using System.Collections.Generic;
using System.Globalization;
using System.IO;
using System.Reflection;
namespace LitJson
{
internal struct PropertyMetadata
{
public MemberInfo Info;
public bool IsField;
public Type Type;
}
internal struct ArrayMetadata
{
private Type element_type;
private bool is_array;
private bool is_list;
public Type ElementType {
get {
if (element_type == null)
return typeof (JsonData);
return element_type;
}
set { element_type = value; }
}
public bool IsArray {
get { return is_array; }
set { is_array = value; }
}
public bool IsList {
get { return is_list; }
set { is_list = value; }
}
}
internal struct ObjectMetadata
{
private Type element_type;
private bool is_dictionary;
private IDictionary<string, PropertyMetadata> properties;
public Type ElementType {
get {
if (element_type == null)
return typeof (JsonData);
return element_type;
}
set { element_type = value; }
}
public bool IsDictionary {
get { return is_dictionary; }
set { is_dictionary = value; }
}
public IDictionary<string, PropertyMetadata> Properties {
get { return properties; }
set { properties = value; }
}
}
internal delegate void ExporterFunc (object obj, JsonWriter writer);
public delegate void ExporterFunc<T> (T obj, JsonWriter writer);
internal delegate object ImporterFunc (object input);
public delegate TValue ImporterFunc<TJson, TValue> (TJson input);
public delegate IJsonWrapper WrapperFactory ();
public class JsonMapper
{
#region Fields
private static int max_nesting_depth;
private static IFormatProvider datetime_format;
private static IDictionary<Type, ExporterFunc> base_exporters_table;
private static IDictionary<Type, ExporterFunc> custom_exporters_table;
private static IDictionary<Type,
IDictionary<Type, ImporterFunc>> base_importers_table;
private static IDictionary<Type,
IDictionary<Type, ImporterFunc>> custom_importers_table;
private static IDictionary<Type, ArrayMetadata> array_metadata;
private static readonly object array_metadata_lock = new Object ();
private static IDictionary<Type,
IDictionary<Type, MethodInfo>> conv_ops;
private static readonly object conv_ops_lock = new Object ();
private static IDictionary<Type, ObjectMetadata> object_metadata;
private static readonly object object_metadata_lock = new Object ();
private static IDictionary<Type,
IList<PropertyMetadata>> type_properties;
private static readonly object type_properties_lock = new Object ();
private static JsonWriter static_writer;
private static readonly object static_writer_lock = new Object ();
#endregion
#region Constructors
static JsonMapper ()
{
max_nesting_depth = 100;
array_metadata = new Dictionary<Type, ArrayMetadata> ();
conv_ops = new Dictionary<Type, IDictionary<Type, MethodInfo>> ();
object_metadata = new Dictionary<Type, ObjectMetadata> ();
type_properties = new Dictionary<Type,
IList<PropertyMetadata>> ();
static_writer = new JsonWriter ();
datetime_format = DateTimeFormatInfo.InvariantInfo;
base_exporters_table = new Dictionary<Type, ExporterFunc> ();
custom_exporters_table = new Dictionary<Type, ExporterFunc> ();
base_importers_table = new Dictionary<Type,
IDictionary<Type, ImporterFunc>> ();
custom_importers_table = new Dictionary<Type,
IDictionary<Type, ImporterFunc>> ();
RegisterBaseExporters ();
RegisterBaseImporters ();
}
#endregion
#region Private Methods
private static void AddArrayMetadata (Type type)
{
if (array_metadata.ContainsKey (type))
return;
ArrayMetadata data = new ArrayMetadata ();
data.IsArray = type.IsArray;
if (type.GetInterface ("System.Collections.IList") != null)
data.IsList = true;
foreach (PropertyInfo p_info in type.GetProperties ()) {
if (p_info.Name != "Item")
continue;
ParameterInfo[] parameters = p_info.GetIndexParameters ();
if (parameters.Length != 1)
continue;
if (parameters[0].ParameterType == typeof (int))
data.ElementType = p_info.PropertyType;
}
lock (array_metadata_lock) {
try {
array_metadata.Add (type, data);
} catch (ArgumentException) {
return;
}
}
}
private static void AddObjectMetadata (Type type)
{
if (object_metadata.ContainsKey (type))
return;
ObjectMetadata data = new ObjectMetadata ();
if (type.GetInterface ("System.Collections.IDictionary") != null)
data.IsDictionary = true;
data.Properties = new Dictionary<string, PropertyMetadata> ();
foreach (PropertyInfo p_info in type.GetProperties ()) {
if (p_info.Name == "Item") {
ParameterInfo[] parameters = p_info.GetIndexParameters ();
if (parameters.Length != 1)
continue;
if (parameters[0].ParameterType == typeof (string))
data.ElementType = p_info.PropertyType;
continue;
}
PropertyMetadata p_data = new PropertyMetadata ();
p_data.Info = p_info;
p_data.Type = p_info.PropertyType;
data.Properties.Add (p_info.Name, p_data);
}
foreach (FieldInfo f_info in type.GetFields ()) {
PropertyMetadata p_data = new PropertyMetadata ();
p_data.Info = f_info;
p_data.IsField = true;
p_data.Type = f_info.FieldType;
data.Properties.Add (f_info.Name, p_data);
}
lock (object_metadata_lock) {
try {
object_metadata.Add (type, data);
} catch (ArgumentException) {
return;
}
}
}
private static void AddTypeProperties (Type type)
{
if (type_properties.ContainsKey (type))
return;
IList<PropertyMetadata> props = new List<PropertyMetadata> ();
foreach (PropertyInfo p_info in type.GetProperties ()) {
if (p_info.Name == "Item")
continue;
PropertyMetadata p_data = new PropertyMetadata ();
p_data.Info = p_info;
p_data.IsField = false;
props.Add (p_data);
}
foreach (FieldInfo f_info in type.GetFields ()) {
PropertyMetadata p_data = new PropertyMetadata ();
p_data.Info = f_info;
p_data.IsField = true;
props.Add (p_data);
}
lock (type_properties_lock) {
try {
type_properties.Add (type, props);
} catch (ArgumentException) {
return;
}
}
}
private static MethodInfo GetConvOp (Type t1, Type t2)
{
lock (conv_ops_lock) {
if (! conv_ops.ContainsKey (t1))
conv_ops.Add (t1, new Dictionary<Type, MethodInfo> ());
}
if (conv_ops[t1].ContainsKey (t2))
return conv_ops[t1][t2];
MethodInfo op = t1.GetMethod (
"op_Implicit", new Type[] { t2 });
lock (conv_ops_lock) {
try {
conv_ops[t1].Add (t2, op);
} catch (ArgumentException) {
return conv_ops[t1][t2];
}
}
return op;
}
private static object ReadValue (Type inst_type, JsonReader reader)
{
reader.Read ();
if (reader.Token == JsonToken.ArrayEnd)
return null;
if (reader.Token == JsonToken.Null) {
if (! inst_type.IsClass)
throw new JsonException (String.Format (
"Can't assign null to an instance of type {0}",
inst_type));
return null;
}
if (reader.Token == JsonToken.Double ||
reader.Token == JsonToken.Int ||
reader.Token == JsonToken.Long ||
reader.Token == JsonToken.String ||
reader.Token == JsonToken.Boolean) {
Type json_type = reader.Value.GetType ();
if (inst_type.IsAssignableFrom (json_type))
return reader.Value;
// If there's a custom importer that fits, use it
if (custom_importers_table.ContainsKey (json_type) &&
custom_importers_table[json_type].ContainsKey (
inst_type)) {
ImporterFunc importer =
custom_importers_table[json_type][inst_type];
return importer (reader.Value);
}
// Maybe there's a base importer that works
if (base_importers_table.ContainsKey (json_type) &&
base_importers_table[json_type].ContainsKey (
inst_type)) {
ImporterFunc importer =
base_importers_table[json_type][inst_type];
return importer (reader.Value);
}
// Maybe it's an enum
if (inst_type.IsEnum)
return Enum.ToObject (inst_type, reader.Value);
// Try using an implicit conversion operator
MethodInfo conv_op = GetConvOp (inst_type, json_type);
if (conv_op != null)
return conv_op.Invoke (null,
new object[] { reader.Value });
// No luck
throw new JsonException (String.Format (
"Can't assign value '{0}' (type {1}) to type {2}",
reader.Value, json_type, inst_type));
}
object instance = null;
if (reader.Token == JsonToken.ArrayStart) {
AddArrayMetadata (inst_type);
ArrayMetadata t_data = array_metadata[inst_type];
if (! t_data.IsArray && ! t_data.IsList)
throw new JsonException (String.Format (
"Type {0} can't act as an array",
inst_type));
IList list;
Type elem_type;
if (! t_data.IsArray) {
list = (IList) Activator.CreateInstance (inst_type);
elem_type = t_data.ElementType;
} else {
list = new ArrayList ();
elem_type = inst_type.GetElementType ();
}
while (true) {
object item = ReadValue (elem_type, reader);
if (reader.Token == JsonToken.ArrayEnd)
break;
list.Add (item);
}
if (t_data.IsArray) {
int n = list.Count;
instance = Array.CreateInstance (elem_type, n);
for (int i = 0; i < n; i++)
((Array) instance).SetValue (list[i], i);
} else
instance = list;
} else if (reader.Token == JsonToken.ObjectStart) {
AddObjectMetadata (inst_type);
ObjectMetadata t_data = object_metadata[inst_type];
instance = Activator.CreateInstance (inst_type);
while (true) {
reader.Read ();
if (reader.Token == JsonToken.ObjectEnd)
break;
string property = (string) reader.Value;
if (t_data.Properties.ContainsKey (property)) {
PropertyMetadata prop_data =
t_data.Properties[property];
if (prop_data.IsField) {
((FieldInfo) prop_data.Info).SetValue (
instance, ReadValue (prop_data.Type, reader));
} else {
PropertyInfo p_info =
(PropertyInfo) prop_data.Info;
if (p_info.CanWrite)
p_info.SetValue (
instance,
ReadValue (prop_data.Type, reader),
null);
else
ReadValue (prop_data.Type, reader);
}
} else {
if (! t_data.IsDictionary)
throw new JsonException (String.Format (
"The type {0} doesn't have the " +
"property '{1}'", inst_type, property));
((IDictionary) instance).Add (
property, ReadValue (
t_data.ElementType, reader));
}
}
}
return instance;
}
private static IJsonWrapper ReadValue (WrapperFactory factory,
JsonReader reader)
{
reader.Read ();
if (reader.Token == JsonToken.ArrayEnd ||
reader.Token == JsonToken.Null)
return null;
IJsonWrapper instance = factory ();
if (reader.Token == JsonToken.String) {
instance.SetString ((string) reader.Value);
return instance;
}
if (reader.Token == JsonToken.Double) {
instance.SetDouble ((double) reader.Value);
return instance;
}
if (reader.Token == JsonToken.Int) {
instance.SetInt ((int) reader.Value);
return instance;
}
if (reader.Token == JsonToken.Long) {
instance.SetLong ((long) reader.Value);
return instance;
}
if (reader.Token == JsonToken.Boolean) {
instance.SetBoolean ((bool) reader.Value);
return instance;
}
if (reader.Token == JsonToken.ArrayStart) {
instance.SetJsonType (JsonType.Array);
while (true) {
IJsonWrapper item = ReadValue (factory, reader);
if (reader.Token == JsonToken.ArrayEnd)
break;
((IList) instance).Add (item);
}
}
else if (reader.Token == JsonToken.ObjectStart) {
instance.SetJsonType (JsonType.Object);
while (true) {
reader.Read ();
if (reader.Token == JsonToken.ObjectEnd)
break;
string property = (string) reader.Value;
((IDictionary) instance)[property] = ReadValue (
factory, reader);
}
}
return instance;
}
private static void RegisterBaseExporters ()
{
base_exporters_table[typeof (byte)] =
delegate (object obj, JsonWriter writer) {
writer.Write (Convert.ToInt32 ((byte) obj));
};
base_exporters_table[typeof (char)] =
delegate (object obj, JsonWriter writer) {
writer.Write (Convert.ToString ((char) obj));
};
base_exporters_table[typeof (DateTime)] =
delegate (object obj, JsonWriter writer) {
writer.Write (Convert.ToString ((DateTime) obj,
datetime_format));
};
base_exporters_table[typeof (decimal)] =
delegate (object obj, JsonWriter writer) {
writer.Write ((decimal) obj);
};
base_exporters_table[typeof (sbyte)] =
delegate (object obj, JsonWriter writer) {
writer.Write (Convert.ToInt32 ((sbyte) obj));
};
base_exporters_table[typeof (short)] =
delegate (object obj, JsonWriter writer) {
writer.Write (Convert.ToInt32 ((short) obj));
};
base_exporters_table[typeof (ushort)] =
delegate (object obj, JsonWriter writer) {
writer.Write (Convert.ToInt32 ((ushort) obj));
};
base_exporters_table[typeof (uint)] =
delegate (object obj, JsonWriter writer) {
writer.Write (Convert.ToUInt64 ((uint) obj));
};
base_exporters_table[typeof (ulong)] =
delegate (object obj, JsonWriter writer) {
writer.Write ((ulong) obj);
};
}
private static void RegisterBaseImporters ()
{
ImporterFunc importer;
importer = delegate (object input) {
return Convert.ToByte ((int) input);
};
RegisterImporter (base_importers_table, typeof (int),
typeof (byte), importer);
importer = delegate (object input) {
return Convert.ToUInt64 ((int) input);
};
RegisterImporter (base_importers_table, typeof (int),
typeof (ulong), importer);
importer = delegate (object input) {
return Convert.ToSByte ((int) input);
};
RegisterImporter (base_importers_table, typeof (int),
typeof (sbyte), importer);
importer = delegate (object input) {
return Convert.ToInt16 ((int) input);
};
RegisterImporter (base_importers_table, typeof (int),
typeof (short), importer);
importer = delegate (object input) {
return Convert.ToUInt16 ((int) input);
};
RegisterImporter (base_importers_table, typeof (int),
typeof (ushort), importer);
importer = delegate (object input) {
return Convert.ToUInt32 ((int) input);
};
RegisterImporter (base_importers_table, typeof (int),
typeof (uint), importer);
importer = delegate (object input) {
return Convert.ToSingle ((int) input);
};
RegisterImporter (base_importers_table, typeof (int),
typeof (float), importer);
importer = delegate (object input) {
return Convert.ToDouble ((int) input);
};
RegisterImporter (base_importers_table, typeof (int),
typeof (double), importer);
importer = delegate (object input) {
return Convert.ToDecimal ((double) input);
};
RegisterImporter (base_importers_table, typeof (double),
typeof (decimal), importer);
importer = delegate (object input) {
return Convert.ToUInt32 ((long) input);
};
RegisterImporter (base_importers_table, typeof (long),
typeof (uint), importer);
importer = delegate (object input) {
return Convert.ToChar ((string) input);
};
RegisterImporter (base_importers_table, typeof (string),
typeof (char), importer);
importer = delegate (object input) {
return Convert.ToDateTime ((string) input, datetime_format);
};
RegisterImporter (base_importers_table, typeof (string),
typeof (DateTime), importer);
}
private static void RegisterImporter (
IDictionary<Type, IDictionary<Type, ImporterFunc>> table,
Type json_type, Type value_type, ImporterFunc importer)
{
if (! table.ContainsKey (json_type))
table.Add (json_type, new Dictionary<Type, ImporterFunc> ());
table[json_type][value_type] = importer;
}
private static void WriteValue (object obj, JsonWriter writer,
bool writer_is_private,
int depth)
{
if (depth > max_nesting_depth)
throw new JsonException (
String.Format ("Max allowed object depth reached while " +
"trying to export from type {0}",
obj.GetType ()));
if (obj == null) {
writer.Write (null);
return;
}
if (obj is IJsonWrapper) {
if (writer_is_private)
writer.TextWriter.Write (((IJsonWrapper) obj).ToJson ());
else
((IJsonWrapper) obj).ToJson (writer);
return;
}
if (obj is String) {
writer.Write ((string) obj);
return;
}
if (obj is Double) {
writer.Write ((double) obj);
return;
}
if (obj is Int32) {
writer.Write ((int) obj);
return;
}
if (obj is Boolean) {
writer.Write ((bool) obj);
return;
}
if (obj is Int64) {
writer.Write ((long) obj);
return;
}
if (obj is Array) {
writer.WriteArrayStart ();
foreach (object elem in (Array) obj)
WriteValue (elem, writer, writer_is_private, depth + 1);
writer.WriteArrayEnd ();
return;
}
if (obj is IList) {
writer.WriteArrayStart ();
foreach (object elem in (IList) obj)
WriteValue (elem, writer, writer_is_private, depth + 1);
writer.WriteArrayEnd ();
return;
}
if (obj is IDictionary) {
writer.WriteObjectStart ();
foreach (DictionaryEntry entry in (IDictionary) obj) {
writer.WritePropertyName ((string) entry.Key);
WriteValue (entry.Value, writer, writer_is_private,
depth + 1);
}
writer.WriteObjectEnd ();
return;
}
Type obj_type = obj.GetType ();
// See if there's a custom exporter for the object
if (custom_exporters_table.ContainsKey (obj_type)) {
ExporterFunc exporter = custom_exporters_table[obj_type];
exporter (obj, writer);
return;
}
// If not, maybe there's a base exporter
if (base_exporters_table.ContainsKey (obj_type)) {
ExporterFunc exporter = base_exporters_table[obj_type];
exporter (obj, writer);
return;
}
// Last option, let's see if it's an enum
if (obj is Enum) {
Type e_type = Enum.GetUnderlyingType (obj_type);
if (e_type == typeof (long)
|| e_type == typeof (uint)
|| e_type == typeof (ulong))
writer.Write ((ulong) obj);
else
writer.Write ((int) obj);
return;
}
// Okay, so it looks like the input should be exported as an
// object
AddTypeProperties (obj_type);
IList<PropertyMetadata> props = type_properties[obj_type];
writer.WriteObjectStart ();
foreach (PropertyMetadata p_data in props) {
if (p_data.IsField) {
writer.WritePropertyName (p_data.Info.Name);
WriteValue (((FieldInfo) p_data.Info).GetValue (obj),
writer, writer_is_private, depth + 1);
}
else {
PropertyInfo p_info = (PropertyInfo) p_data.Info;
if (p_info.CanRead) {
writer.WritePropertyName (p_data.Info.Name);
WriteValue (p_info.GetValue (obj, null),
writer, writer_is_private, depth + 1);
}
}
}
writer.WriteObjectEnd ();
}
#endregion
public static string ToJson (object obj)
{
lock (static_writer_lock) {
static_writer.Reset ();
WriteValue (obj, static_writer, true, 0);
return static_writer.ToString ();
}
}
public static void ToJson (object obj, JsonWriter writer)
{
WriteValue (obj, writer, false, 0);
}
public static JsonData ToObject (JsonReader reader)
{
return (JsonData) ToWrapper (
delegate { return new JsonData (); }, reader);
}
public static JsonData ToObject (TextReader reader)
{
JsonReader json_reader = new JsonReader (reader);
return (JsonData) ToWrapper (
delegate { return new JsonData (); }, json_reader);
}
public static JsonData ToObject (string json)
{
return (JsonData) ToWrapper (
delegate { return new JsonData (); }, json);
}
public static T ToObject<T> (JsonReader reader)
{
return (T) ReadValue (typeof (T), reader);
}
public static T ToObject<T> (TextReader reader)
{
JsonReader json_reader = new JsonReader (reader);
return (T) ReadValue (typeof (T), json_reader);
}
public static T ToObject<T> (string json)
{
JsonReader reader = new JsonReader (json);
return (T) ReadValue (typeof (T), reader);
}
public static IJsonWrapper ToWrapper (WrapperFactory factory,
JsonReader reader)
{
return ReadValue (factory, reader);
}
public static IJsonWrapper ToWrapper (WrapperFactory factory,
string json)
{
JsonReader reader = new JsonReader (json);
return ReadValue (factory, reader);
}
public static void RegisterExporter<T> (ExporterFunc<T> exporter)
{
ExporterFunc exporter_wrapper =
delegate (object obj, JsonWriter writer) {
exporter ((T) obj, writer);
};
custom_exporters_table[typeof (T)] = exporter_wrapper;
}
public static void RegisterImporter<TJson, TValue> (
ImporterFunc<TJson, TValue> importer)
{
ImporterFunc importer_wrapper =
delegate (object input) {
return importer ((TJson) input);
};
RegisterImporter (custom_importers_table, typeof (TJson),
typeof (TValue), importer_wrapper);
}
public static void UnregisterExporters ()
{
custom_exporters_table.Clear ();
}
public static void UnregisterImporters ()
{
custom_importers_table.Clear ();
}
}
}

455
OpenMetaverse.StructuredData/JSON/JsonReader.cs Normal file
View File

@@ -0,0 +1,455 @@
#region Header
/**
* JsonReader.cs
* Stream-like access to JSON text.
*
* The authors disclaim copyright to this source code. For more details, see
* the COPYING file included with this distribution.
**/
#endregion
using System;
using System.Collections.Generic;
using System.IO;
using System.Text;
namespace LitJson
{
public enum JsonToken
{
None,
ObjectStart,
PropertyName,
ObjectEnd,
ArrayStart,
ArrayEnd,
Int,
Long,
Double,
String,
Boolean,
Null
}
public class JsonReader
{
#region Fields
private static IDictionary<int, IDictionary<int, int[]>> parse_table;
private Stack<int> automaton_stack;
private int current_input;
private int current_symbol;
private bool end_of_json;
private bool end_of_input;
private Lexer lexer;
private bool parser_in_string;
private bool parser_return;
private bool read_started;
private TextReader reader;
private bool reader_is_owned;
private object token_value;
private JsonToken token;
#endregion
#region Public Properties
public bool AllowComments {
get { return lexer.AllowComments; }
set { lexer.AllowComments = value; }
}
public bool AllowSingleQuotedStrings {
get { return lexer.AllowSingleQuotedStrings; }
set { lexer.AllowSingleQuotedStrings = value; }
}
public bool EndOfInput {
get { return end_of_input; }
}
public bool EndOfJson {
get { return end_of_json; }
}
public JsonToken Token {
get { return token; }
}
public object Value {
get { return token_value; }
}
#endregion
#region Constructors
static JsonReader ()
{
PopulateParseTable ();
}
public JsonReader (string json_text) :
this (new StringReader (json_text), true)
{
}
public JsonReader (TextReader reader) :
this (reader, false)
{
}
private JsonReader (TextReader reader, bool owned)
{
if (reader == null)
throw new ArgumentNullException ("reader");
parser_in_string = false;
parser_return = false;
read_started = false;
automaton_stack = new Stack<int> ();
automaton_stack.Push ((int) ParserToken.End);
automaton_stack.Push ((int) ParserToken.Text);
lexer = new Lexer (reader);
end_of_input = false;
end_of_json = false;
this.reader = reader;
reader_is_owned = owned;
}
#endregion
#region Static Methods
private static void PopulateParseTable ()
{
parse_table = new Dictionary<int, IDictionary<int, int[]>> ();
TableAddRow (ParserToken.Array);
TableAddCol (ParserToken.Array, '[',
'[',
(int) ParserToken.ArrayPrime);
TableAddRow (ParserToken.ArrayPrime);
TableAddCol (ParserToken.ArrayPrime, '"',
(int) ParserToken.Value,
(int) ParserToken.ValueRest,
']');
TableAddCol (ParserToken.ArrayPrime, '[',
(int) ParserToken.Value,
(int) ParserToken.ValueRest,
']');
TableAddCol (ParserToken.ArrayPrime, ']',
']');
TableAddCol (ParserToken.ArrayPrime, '{',
(int) ParserToken.Value,
(int) ParserToken.ValueRest,
']');
TableAddCol (ParserToken.ArrayPrime, (int) ParserToken.Number,
(int) ParserToken.Value,
(int) ParserToken.ValueRest,
']');
TableAddCol (ParserToken.ArrayPrime, (int) ParserToken.True,
(int) ParserToken.Value,
(int) ParserToken.ValueRest,
']');
TableAddCol (ParserToken.ArrayPrime, (int) ParserToken.False,
(int) ParserToken.Value,
(int) ParserToken.ValueRest,
']');
TableAddCol (ParserToken.ArrayPrime, (int) ParserToken.Null,
(int) ParserToken.Value,
(int) ParserToken.ValueRest,
']');
TableAddRow (ParserToken.Object);
TableAddCol (ParserToken.Object, '{',
'{',
(int) ParserToken.ObjectPrime);
TableAddRow (ParserToken.ObjectPrime);
TableAddCol (ParserToken.ObjectPrime, '"',
(int) ParserToken.Pair,
(int) ParserToken.PairRest,
'}');
TableAddCol (ParserToken.ObjectPrime, '}',
'}');
TableAddRow (ParserToken.Pair);
TableAddCol (ParserToken.Pair, '"',
(int) ParserToken.String,
':',
(int) ParserToken.Value);
TableAddRow (ParserToken.PairRest);
TableAddCol (ParserToken.PairRest, ',',
',',
(int) ParserToken.Pair,
(int) ParserToken.PairRest);
TableAddCol (ParserToken.PairRest, '}',
(int) ParserToken.Epsilon);
TableAddRow (ParserToken.String);
TableAddCol (ParserToken.String, '"',
'"',
(int) ParserToken.CharSeq,
'"');
TableAddRow (ParserToken.Text);
TableAddCol (ParserToken.Text, '[',
(int) ParserToken.Array);
TableAddCol (ParserToken.Text, '{',
(int) ParserToken.Object);
TableAddRow (ParserToken.Value);
TableAddCol (ParserToken.Value, '"',
(int) ParserToken.String);
TableAddCol (ParserToken.Value, '[',
(int) ParserToken.Array);
TableAddCol (ParserToken.Value, '{',
(int) ParserToken.Object);
TableAddCol (ParserToken.Value, (int) ParserToken.Number,
(int) ParserToken.Number);
TableAddCol (ParserToken.Value, (int) ParserToken.True,
(int) ParserToken.True);
TableAddCol (ParserToken.Value, (int) ParserToken.False,
(int) ParserToken.False);
TableAddCol (ParserToken.Value, (int) ParserToken.Null,
(int) ParserToken.Null);
TableAddRow (ParserToken.ValueRest);
TableAddCol (ParserToken.ValueRest, ',',
',',
(int) ParserToken.Value,
(int) ParserToken.ValueRest);
TableAddCol (ParserToken.ValueRest, ']',
(int) ParserToken.Epsilon);
}
private static void TableAddCol (ParserToken row, int col,
params int[] symbols)
{
parse_table[(int) row].Add (col, symbols);
}
private static void TableAddRow (ParserToken rule)
{
parse_table.Add ((int) rule, new Dictionary<int, int[]> ());
}
#endregion
#region Private Methods
private void ProcessNumber (string number)
{
if (number.IndexOf ('.') != -1 ||
number.IndexOf ('e') != -1 ||
number.IndexOf ('E') != -1) {
double n_double;
if (Double.TryParse (number, out n_double)) {
token = JsonToken.Double;
token_value = n_double;
return;
}
}
int n_int32;
if (Int32.TryParse (number, out n_int32)) {
token = JsonToken.Int;
token_value = n_int32;
return;
}
long n_int64;
if (Int64.TryParse (number, out n_int64)) {
token = JsonToken.Long;
token_value = n_int64;
return;
}
// Shouldn't happen, but just in case, return something
token = JsonToken.Int;
token_value = 0;
}
private void ProcessSymbol ()
{
if (current_symbol == '[') {
token = JsonToken.ArrayStart;
parser_return = true;
} else if (current_symbol == ']') {
token = JsonToken.ArrayEnd;
parser_return = true;
} else if (current_symbol == '{') {
token = JsonToken.ObjectStart;
parser_return = true;
} else if (current_symbol == '}') {
token = JsonToken.ObjectEnd;
parser_return = true;
} else if (current_symbol == '"') {
if (parser_in_string) {
parser_in_string = false;
parser_return = true;
} else {
if (token == JsonToken.None)
token = JsonToken.String;
parser_in_string = true;
}
} else if (current_symbol == (int) ParserToken.CharSeq) {
token_value = lexer.StringValue;
} else if (current_symbol == (int) ParserToken.False) {
token = JsonToken.Boolean;
token_value = false;
parser_return = true;
} else if (current_symbol == (int) ParserToken.Null) {
token = JsonToken.Null;
parser_return = true;
} else if (current_symbol == (int) ParserToken.Number) {
ProcessNumber (lexer.StringValue);
parser_return = true;
} else if (current_symbol == (int) ParserToken.Pair) {
token = JsonToken.PropertyName;
} else if (current_symbol == (int) ParserToken.True) {
token = JsonToken.Boolean;
token_value = true;
parser_return = true;
}
}
private bool ReadToken ()
{
if (end_of_input)
return false;
lexer.NextToken ();
if (lexer.EndOfInput) {
Close ();
return false;
}
current_input = lexer.Token;
return true;
}
#endregion
public void Close ()
{
if (end_of_input)
return;
end_of_input = true;
end_of_json = true;
if (reader_is_owned)
reader.Close ();
reader = null;
}
public bool Read ()
{
if (end_of_input)
return false;
if (end_of_json) {
end_of_json = false;
automaton_stack.Clear ();
automaton_stack.Push ((int) ParserToken.End);
automaton_stack.Push ((int) ParserToken.Text);
}
parser_in_string = false;
parser_return = false;
token = JsonToken.None;
token_value = null;
if (! read_started) {
read_started = true;
if (! ReadToken ())
return false;
}
int[] entry_symbols;
while (true) {
if (parser_return) {
if (automaton_stack.Peek () == (int) ParserToken.End)
end_of_json = true;
return true;
}
current_symbol = automaton_stack.Pop ();
ProcessSymbol ();
if (current_symbol == current_input) {
if (! ReadToken ()) {
if (automaton_stack.Peek () != (int) ParserToken.End)
throw new JsonException (
"Input doesn't evaluate to proper JSON text");
if (parser_return)
return true;
return false;
}
continue;
}
try {
entry_symbols =
parse_table[current_symbol][current_input];
} catch (KeyNotFoundException e) {
throw new JsonException ((ParserToken) current_input, e);
}
if (entry_symbols[0] == (int) ParserToken.Epsilon)
continue;
for (int i = entry_symbols.Length - 1; i >= 0; i--)
automaton_stack.Push (entry_symbols[i]);
}
}
}
}

462
OpenMetaverse.StructuredData/JSON/JsonWriter.cs Normal file
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#region Header
/**
* JsonWriter.cs
* Stream-like facility to output JSON text.
*
* The authors disclaim copyright to this source code. For more details, see
* the COPYING file included with this distribution.
**/
#endregion
using System;
using System.Collections.Generic;
using System.Globalization;
using System.IO;
using System.Text;
namespace LitJson
{
internal enum Condition
{
InArray,
InObject,
NotAProperty,
Property,
Value
}
internal class WriterContext
{
public int Count;
public bool InArray;
public bool InObject;
public bool ExpectingValue;
public int Padding;
}
public class JsonWriter
{
#region Fields
private static NumberFormatInfo number_format;
private WriterContext context;
private Stack<WriterContext> ctx_stack;
private bool has_reached_end;
private char[] hex_seq;
private int indentation;
private int indent_value;
private StringBuilder inst_string_builder;
private bool pretty_print;
private bool validate;
private TextWriter writer;
#endregion
#region Properties
public int IndentValue {
get { return indent_value; }
set {
indentation = (indentation / indent_value) * value;
indent_value = value;
}
}
public bool PrettyPrint {
get { return pretty_print; }
set { pretty_print = value; }
}
public TextWriter TextWriter {
get { return writer; }
}
public bool Validate {
get { return validate; }
set { validate = value; }
}
#endregion
#region Constructors
static JsonWriter ()
{
number_format = NumberFormatInfo.InvariantInfo;
}
public JsonWriter ()
{
inst_string_builder = new StringBuilder ();
writer = new StringWriter (inst_string_builder);
Init ();
}
public JsonWriter (StringBuilder sb) :
this (new StringWriter (sb))
{
}
public JsonWriter (TextWriter writer)
{
if (writer == null)
throw new ArgumentNullException ("writer");
this.writer = writer;
Init ();
}
#endregion
#region Private Methods
private void DoValidation (Condition cond)
{
if (! context.ExpectingValue)
context.Count++;
if (! validate)
return;
if (has_reached_end)
throw new JsonException (
"A complete JSON symbol has already been written");
switch (cond) {
case Condition.InArray:
if (! context.InArray)
throw new JsonException (
"Can't close an array here");
break;
case Condition.InObject:
if (! context.InObject || context.ExpectingValue)
throw new JsonException (
"Can't close an object here");
break;
case Condition.NotAProperty:
if (context.InObject && ! context.ExpectingValue)
throw new JsonException (
"Expected a property");
break;
case Condition.Property:
if (! context.InObject || context.ExpectingValue)
throw new JsonException (
"Can't add a property here");
break;
case Condition.Value:
if (! context.InArray &&
(! context.InObject || ! context.ExpectingValue))
throw new JsonException (
"Can't add a value here");
break;
}
}
private void Init ()
{
has_reached_end = false;
hex_seq = new char[4];
indentation = 0;
indent_value = 4;
pretty_print = false;
validate = true;
ctx_stack = new Stack<WriterContext> ();
context = new WriterContext ();
ctx_stack.Push (context);
}
private static void IntToHex (int n, char[] hex)
{
int num;
for (int i = 0; i < 4; i++) {
num = n % 16;
if (num < 10)
hex[3 - i] = (char) ('0' + num);
else
hex[3 - i] = (char) ('A' + (num - 10));
n >>= 4;
}
}
private void Indent ()
{
if (pretty_print)
indentation += indent_value;
}
private void Put (string str)
{
if (pretty_print && ! context.ExpectingValue)
for (int i = 0; i < indentation; i++)
writer.Write (' ');
writer.Write (str);
}
private void PutNewline ()
{
PutNewline (true);
}
private void PutNewline (bool add_comma)
{
if (add_comma && ! context.ExpectingValue &&
context.Count > 1)
writer.Write (',');
if (pretty_print && ! context.ExpectingValue)
writer.Write ('\n');
}
private void PutString (string str)
{
Put (String.Empty);
writer.Write ('"');
int n = str.Length;
for (int i = 0; i < n; i++) {
switch (str[i]) {
case '\n':
writer.Write ("\\n");
continue;
case '\r':
writer.Write ("\\r");
continue;
case '\t':
writer.Write ("\\t");
continue;
case '"':
case '\\':
writer.Write ('\\');
writer.Write (str[i]);
continue;
case '\f':
writer.Write ("\\f");
continue;
case '\b':
writer.Write ("\\b");
continue;
}
if ((int) str[i] >= 32 && (int) str[i] <= 126) {
writer.Write (str[i]);
continue;
}
// Default, turn into a \uXXXX sequence
IntToHex ((int) str[i], hex_seq);
writer.Write ("\\u");
writer.Write (hex_seq);
}
writer.Write ('"');
}
private void Unindent ()
{
if (pretty_print)
indentation -= indent_value;
}
#endregion
public override string ToString ()
{
if (inst_string_builder == null)
return String.Empty;
return inst_string_builder.ToString ();
}
public void Reset ()
{
has_reached_end = false;
ctx_stack.Clear ();
context = new WriterContext ();
ctx_stack.Push (context);
if (inst_string_builder != null)
inst_string_builder.Remove (0, inst_string_builder.Length);
}
public void Write (bool boolean)
{
DoValidation (Condition.Value);
PutNewline ();
Put (boolean ? "true" : "false");
context.ExpectingValue = false;
}
public void Write (decimal number)
{
DoValidation (Condition.Value);
PutNewline ();
Put (Convert.ToString (number, number_format));
context.ExpectingValue = false;
}
public void Write (double number)
{
DoValidation (Condition.Value);
PutNewline ();
string str = Convert.ToString (number, number_format);
Put (str);
if (str.IndexOf ('.') == -1 &&
str.IndexOf ('E') == -1)
writer.Write (".0");
context.ExpectingValue = false;
}
public void Write (int number)
{
DoValidation (Condition.Value);
PutNewline ();
Put (Convert.ToString (number, number_format));
context.ExpectingValue = false;
}
public void Write (long number)
{
DoValidation (Condition.Value);
PutNewline ();
Put (Convert.ToString (number, number_format));
context.ExpectingValue = false;
}
public void Write (string str)
{
DoValidation (Condition.Value);
PutNewline ();
if (str == null)
Put ("null");
else
PutString (str);
context.ExpectingValue = false;
}
public void Write (ulong number)
{
DoValidation (Condition.Value);
PutNewline ();
Put (Convert.ToString (number, number_format));
context.ExpectingValue = false;
}
public void WriteArrayEnd ()
{
DoValidation (Condition.InArray);
PutNewline (false);
ctx_stack.Pop ();
if (ctx_stack.Count == 1)
has_reached_end = true;
else {
context = ctx_stack.Peek ();
context.ExpectingValue = false;
}
Unindent ();
Put ("]");
}
public void WriteArrayStart ()
{
DoValidation (Condition.NotAProperty);
PutNewline ();
Put ("[");
context = new WriterContext ();
context.InArray = true;
ctx_stack.Push (context);
Indent ();
}
public void WriteObjectEnd ()
{
DoValidation (Condition.InObject);
PutNewline (false);
ctx_stack.Pop ();
if (ctx_stack.Count == 1)
has_reached_end = true;
else {
context = ctx_stack.Peek ();
context.ExpectingValue = false;
}
Unindent ();
Put ("}");
}
public void WriteObjectStart ()
{
DoValidation (Condition.NotAProperty);
PutNewline ();
Put ("{");
context = new WriterContext ();
context.InObject = true;
ctx_stack.Push (context);
Indent ();
}
public void WritePropertyName (string property_name)
{
DoValidation (Condition.Property);
PutNewline ();
PutString (property_name);
if (pretty_print) {
if (property_name.Length > context.Padding)
context.Padding = property_name.Length;
for (int i = context.Padding - property_name.Length;
i >= 0; i--)
writer.Write (' ');
writer.Write (": ");
} else
writer.Write (':');
context.ExpectingValue = true;
}
}
}

910
OpenMetaverse.StructuredData/JSON/Lexer.cs Normal file
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#region Header
/**
* Lexer.cs
* JSON lexer implementation based on a finite state machine.
*
* The authors disclaim copyright to this source code. For more details, see
* the COPYING file included with this distribution.
**/
#endregion
using System;
using System.Collections.Generic;
using System.IO;
using System.Text;
namespace LitJson
{
internal class FsmContext
{
public bool Return;
public int NextState;
public Lexer L;
public int StateStack;
}
internal class Lexer
{
#region Fields
private delegate bool StateHandler (FsmContext ctx);
private static int[] fsm_return_table;
private static StateHandler[] fsm_handler_table;
private bool allow_comments;
private bool allow_single_quoted_strings;
private bool end_of_input;
private FsmContext fsm_context;
private int input_buffer;
private int input_char;
private TextReader reader;
private int state;
private StringBuilder string_buffer;
private string string_value;
private int token;
private int unichar;
#endregion
#region Properties
public bool AllowComments {
get { return allow_comments; }
set { allow_comments = value; }
}
public bool AllowSingleQuotedStrings {
get { return allow_single_quoted_strings; }
set { allow_single_quoted_strings = value; }
}
public bool EndOfInput {
get { return end_of_input; }
}
public int Token {
get { return token; }
}
public string StringValue {
get { return string_value; }
}
#endregion
#region Constructors
static Lexer ()
{
PopulateFsmTables ();
}
public Lexer (TextReader reader)
{
allow_comments = true;
allow_single_quoted_strings = true;
input_buffer = 0;
string_buffer = new StringBuilder (128);
state = 1;
end_of_input = false;
this.reader = reader;
fsm_context = new FsmContext ();
fsm_context.L = this;
}
#endregion
#region Static Methods
private static int HexValue (int digit)
{
switch (digit) {
case 'a':
case 'A':
return 10;
case 'b':
case 'B':
return 11;
case 'c':
case 'C':
return 12;
case 'd':
case 'D':
return 13;
case 'e':
case 'E':
return 14;
case 'f':
case 'F':
return 15;
default:
return digit - '0';
}
}
private static void PopulateFsmTables ()
{
fsm_handler_table = new StateHandler[28] {
State1,
State2,
State3,
State4,
State5,
State6,
State7,
State8,
State9,
State10,
State11,
State12,
State13,
State14,
State15,
State16,
State17,
State18,
State19,
State20,
State21,
State22,
State23,
State24,
State25,
State26,
State27,
State28
};
fsm_return_table = new int[28] {
(int) ParserToken.Char,
0,
(int) ParserToken.Number,
(int) ParserToken.Number,
0,
(int) ParserToken.Number,
0,
(int) ParserToken.Number,
0,
0,
(int) ParserToken.True,
0,
0,
0,
(int) ParserToken.False,
0,
0,
(int) ParserToken.Null,
(int) ParserToken.CharSeq,
(int) ParserToken.Char,
0,
0,
(int) ParserToken.CharSeq,
(int) ParserToken.Char,
0,
0,
0,
0
};
}
private static char ProcessEscChar (int esc_char)
{
switch (esc_char) {
case '"':
case '\'':
case '\\':
case '/':
return Convert.ToChar (esc_char);
case 'n':
return '\n';
case 't':
return '\t';
case 'r':
return '\r';
case 'b':
return '\b';
case 'f':
return '\f';
default:
// Unreachable
return '?';
}
}
private static bool State1 (FsmContext ctx)
{
while (ctx.L.GetChar ()) {
if (ctx.L.input_char == ' ' ||
ctx.L.input_char >= '\t' && ctx.L.input_char <= '\r')
continue;
if (ctx.L.input_char >= '1' && ctx.L.input_char <= '9') {
ctx.L.string_buffer.Append ((char) ctx.L.input_char);
ctx.NextState = 3;
return true;
}
switch (ctx.L.input_char) {
case '"':
ctx.NextState = 19;
ctx.Return = true;
return true;
case ',':
case ':':
case '[':
case ']':
case '{':
case '}':
ctx.NextState = 1;
ctx.Return = true;
return true;
case '-':
ctx.L.string_buffer.Append ((char) ctx.L.input_char);
ctx.NextState = 2;
return true;
case '0':
ctx.L.string_buffer.Append ((char) ctx.L.input_char);
ctx.NextState = 4;
return true;
case 'f':
ctx.NextState = 12;
return true;
case 'n':
ctx.NextState = 16;
return true;
case 't':
ctx.NextState = 9;
return true;
case '\'':
if (! ctx.L.allow_single_quoted_strings)
return false;
ctx.L.input_char = '"';
ctx.NextState = 23;
ctx.Return = true;
return true;
case '/':
if (! ctx.L.allow_comments)
return false;
ctx.NextState = 25;
return true;
default:
return false;
}
}
return true;
}
private static bool State2 (FsmContext ctx)
{
ctx.L.GetChar ();
if (ctx.L.input_char >= '1' && ctx.L.input_char<= '9') {
ctx.L.string_buffer.Append ((char) ctx.L.input_char);
ctx.NextState = 3;
return true;
}
switch (ctx.L.input_char) {
case '0':
ctx.L.string_buffer.Append ((char) ctx.L.input_char);
ctx.NextState = 4;
return true;
default:
return false;
}
}
private static bool State3 (FsmContext ctx)
{
while (ctx.L.GetChar ()) {
if (ctx.L.input_char >= '0' && ctx.L.input_char <= '9') {
ctx.L.string_buffer.Append ((char) ctx.L.input_char);
continue;
}
if (ctx.L.input_char == ' ' ||
ctx.L.input_char >= '\t' && ctx.L.input_char <= '\r') {
ctx.Return = true;
ctx.NextState = 1;
return true;
}
switch (ctx.L.input_char) {
case ',':
case ']':
case '}':
ctx.L.UngetChar ();
ctx.Return = true;
ctx.NextState = 1;
return true;
case '.':
ctx.L.string_buffer.Append ((char) ctx.L.input_char);
ctx.NextState = 5;
return true;
case 'e':
case 'E':
ctx.L.string_buffer.Append ((char) ctx.L.input_char);
ctx.NextState = 7;
return true;
default:
return false;
}
}
return true;
}
private static bool State4 (FsmContext ctx)
{
ctx.L.GetChar ();
if (ctx.L.input_char == ' ' ||
ctx.L.input_char >= '\t' && ctx.L.input_char <= '\r') {
ctx.Return = true;
ctx.NextState = 1;
return true;
}
switch (ctx.L.input_char) {
case ',':
case ']':
case '}':
ctx.L.UngetChar ();
ctx.Return = true;
ctx.NextState = 1;
return true;
case '.':
ctx.L.string_buffer.Append ((char) ctx.L.input_char);
ctx.NextState = 5;
return true;
case 'e':
case 'E':
ctx.L.string_buffer.Append ((char) ctx.L.input_char);
ctx.NextState = 7;
return true;
default:
return false;
}
}
private static bool State5 (FsmContext ctx)
{
ctx.L.GetChar ();
if (ctx.L.input_char >= '0' && ctx.L.input_char <= '9') {
ctx.L.string_buffer.Append ((char) ctx.L.input_char);
ctx.NextState = 6;
return true;
}
return false;
}
private static bool State6 (FsmContext ctx)
{
while (ctx.L.GetChar ()) {
if (ctx.L.input_char >= '0' && ctx.L.input_char <= '9') {
ctx.L.string_buffer.Append ((char) ctx.L.input_char);
continue;
}
if (ctx.L.input_char == ' ' ||
ctx.L.input_char >= '\t' && ctx.L.input_char <= '\r') {
ctx.Return = true;
ctx.NextState = 1;
return true;
}
switch (ctx.L.input_char) {
case ',':
case ']':
case '}':
ctx.L.UngetChar ();
ctx.Return = true;
ctx.NextState = 1;
return true;
case 'e':
case 'E':
ctx.L.string_buffer.Append ((char) ctx.L.input_char);
ctx.NextState = 7;
return true;
default:
return false;
}
}
return true;
}
private static bool State7 (FsmContext ctx)
{
ctx.L.GetChar ();
if (ctx.L.input_char >= '0' && ctx.L.input_char<= '9') {
ctx.L.string_buffer.Append ((char) ctx.L.input_char);
ctx.NextState = 8;
return true;
}
switch (ctx.L.input_char) {
case '+':
case '-':
ctx.L.string_buffer.Append ((char) ctx.L.input_char);
ctx.NextState = 8;
return true;
default:
return false;
}
}
private static bool State8 (FsmContext ctx)
{
while (ctx.L.GetChar ()) {
if (ctx.L.input_char >= '0' && ctx.L.input_char<= '9') {
ctx.L.string_buffer.Append ((char) ctx.L.input_char);
continue;
}
if (ctx.L.input_char == ' ' ||
ctx.L.input_char >= '\t' && ctx.L.input_char<= '\r') {
ctx.Return = true;
ctx.NextState = 1;
return true;
}
switch (ctx.L.input_char) {
case ',':
case ']':
case '}':
ctx.L.UngetChar ();
ctx.Return = true;
ctx.NextState = 1;
return true;
default:
return false;
}
}
return true;
}
private static bool State9 (FsmContext ctx)
{
ctx.L.GetChar ();
switch (ctx.L.input_char) {
case 'r':
ctx.NextState = 10;
return true;
default:
return false;
}
}
private static bool State10 (FsmContext ctx)
{
ctx.L.GetChar ();
switch (ctx.L.input_char) {
case 'u':
ctx.NextState = 11;
return true;
default:
return false;
}
}
private static bool State11 (FsmContext ctx)
{
ctx.L.GetChar ();
switch (ctx.L.input_char) {
case 'e':
ctx.Return = true;
ctx.NextState = 1;
return true;
default:
return false;
}
}
private static bool State12 (FsmContext ctx)
{
ctx.L.GetChar ();
switch (ctx.L.input_char) {
case 'a':
ctx.NextState = 13;
return true;
default:
return false;
}
}
private static bool State13 (FsmContext ctx)
{
ctx.L.GetChar ();
switch (ctx.L.input_char) {
case 'l':
ctx.NextState = 14;
return true;
default:
return false;
}
}
private static bool State14 (FsmContext ctx)
{
ctx.L.GetChar ();
switch (ctx.L.input_char) {
case 's':
ctx.NextState = 15;
return true;
default:
return false;
}
}
private static bool State15 (FsmContext ctx)
{
ctx.L.GetChar ();
switch (ctx.L.input_char) {
case 'e':
ctx.Return = true;
ctx.NextState = 1;
return true;
default:
return false;
}
}
private static bool State16 (FsmContext ctx)
{
ctx.L.GetChar ();
switch (ctx.L.input_char) {
case 'u':
ctx.NextState = 17;
return true;
default:
return false;
}
}
private static bool State17 (FsmContext ctx)
{
ctx.L.GetChar ();
switch (ctx.L.input_char) {
case 'l':
ctx.NextState = 18;
return true;
default:
return false;
}
}
private static bool State18 (FsmContext ctx)
{
ctx.L.GetChar ();
switch (ctx.L.input_char) {
case 'l':
ctx.Return = true;
ctx.NextState = 1;
return true;
default:
return false;
}
}
private static bool State19 (FsmContext ctx)
{
while (ctx.L.GetChar ()) {
switch (ctx.L.input_char) {
case '"':
ctx.L.UngetChar ();
ctx.Return = true;
ctx.NextState = 20;
return true;
case '\\':
ctx.StateStack = 19;
ctx.NextState = 21;
return true;
default:
ctx.L.string_buffer.Append ((char) ctx.L.input_char);
continue;
}
}
return true;
}
private static bool State20 (FsmContext ctx)
{
ctx.L.GetChar ();
switch (ctx.L.input_char) {
case '"':
ctx.Return = true;
ctx.NextState = 1;
return true;
default:
return false;
}
}
private static bool State21 (FsmContext ctx)
{
ctx.L.GetChar ();
switch (ctx.L.input_char) {
case 'u':
ctx.NextState = 22;
return true;
case '"':
case '\'':
case '/':
case '\\':
case 'b':
case 'f':
case 'n':
case 'r':
case 't':
ctx.L.string_buffer.Append (
ProcessEscChar (ctx.L.input_char));
ctx.NextState = ctx.StateStack;
return true;
default:
return false;
}
}
private static bool State22 (FsmContext ctx)
{
int counter = 0;
int mult = 4096;
ctx.L.unichar = 0;
while (ctx.L.GetChar ()) {
if (ctx.L.input_char >= '0' && ctx.L.input_char <= '9' ||
ctx.L.input_char >= 'A' && ctx.L.input_char <= 'F' ||
ctx.L.input_char >= 'a' && ctx.L.input_char <= 'f') {
ctx.L.unichar += HexValue (ctx.L.input_char) * mult;
counter++;
mult /= 16;
if (counter == 4) {
ctx.L.string_buffer.Append (
Convert.ToChar (ctx.L.unichar));
ctx.NextState = ctx.StateStack;
return true;
}
continue;
}
return false;
}
return true;
}
private static bool State23 (FsmContext ctx)
{
while (ctx.L.GetChar ()) {
switch (ctx.L.input_char) {
case '\'':
ctx.L.UngetChar ();
ctx.Return = true;
ctx.NextState = 24;
return true;
case '\\':
ctx.StateStack = 23;
ctx.NextState = 21;
return true;
default:
ctx.L.string_buffer.Append ((char) ctx.L.input_char);
continue;
}
}
return true;
}
private static bool State24 (FsmContext ctx)
{
ctx.L.GetChar ();
switch (ctx.L.input_char) {
case '\'':
ctx.L.input_char = '"';
ctx.Return = true;
ctx.NextState = 1;
return true;
default:
return false;
}
}
private static bool State25 (FsmContext ctx)
{
ctx.L.GetChar ();
switch (ctx.L.input_char) {
case '*':
ctx.NextState = 27;
return true;
case '/':
ctx.NextState = 26;
return true;
default:
return false;
}
}
private static bool State26 (FsmContext ctx)
{
while (ctx.L.GetChar ()) {
if (ctx.L.input_char == '\n') {
ctx.NextState = 1;
return true;
}
}
return true;
}
private static bool State27 (FsmContext ctx)
{
while (ctx.L.GetChar ()) {
if (ctx.L.input_char == '*') {
ctx.NextState = 28;
return true;
}
}
return true;
}
private static bool State28 (FsmContext ctx)
{
while (ctx.L.GetChar ()) {
if (ctx.L.input_char == '*')
continue;
if (ctx.L.input_char == '/') {
ctx.NextState = 1;
return true;
}
ctx.NextState = 27;
return true;
}
return true;
}
#endregion
private bool GetChar ()
{
if ((input_char = NextChar ()) != -1)
return true;
end_of_input = true;
return false;
}
private int NextChar ()
{
if (input_buffer != 0) {
int tmp = input_buffer;
input_buffer = 0;
return tmp;
}
return reader.Read ();
}
public bool NextToken ()
{
StateHandler handler;
fsm_context.Return = false;
while (true) {
handler = fsm_handler_table[state - 1];
if (! handler (fsm_context))
throw new JsonException (input_char);
if (end_of_input)
return false;
if (fsm_context.Return) {
string_value = string_buffer.ToString ();
string_buffer.Remove (0, string_buffer.Length);
token = fsm_return_table[state - 1];
if (token == (int) ParserToken.Char)
token = input_char;
state = fsm_context.NextState;
return true;
}
state = fsm_context.NextState;
}
}
private void UngetChar ()
{
input_buffer = input_char;
}
}
}

128
OpenMetaverse.StructuredData/JSON/OSDJson.cs Normal file
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using System;
using System.Collections.Generic;
using LitJson;
namespace OpenMetaverse.StructuredData
{
public static partial class OSDParser
{
public static OSD DeserializeJson(string json)
{
return DeserializeJson(JsonMapper.ToObject(json));
}
public static OSD DeserializeJson(JsonData json)
{
switch (json.GetJsonType())
{
case JsonType.Boolean:
return OSD.FromBoolean((bool)json);
case JsonType.Int:
return OSD.FromInteger((int)json);
case JsonType.Long:
return OSD.FromLong((long)json);
case JsonType.Double:
return OSD.FromReal((double)json);
case JsonType.String:
string str = (string)json;
switch (str[0])
{
case 'd':
if (str.StartsWith("date::"))
{
DateTime dt;
if (DateTime.TryParse(str.Substring(6), out dt))
return OSD.FromDate(dt);
}
break;
case 'u':
if (str.StartsWith("uuid::"))
{
UUID id;
if (UUID.TryParse(str.Substring(6), out id))
return OSD.FromUUID(id);
}
else if (str.StartsWith("uri::"))
{
try
{
Uri uri = new Uri(str.Substring(5));
return OSD.FromUri(uri);
}
catch (UriFormatException) { }
}
break;
case 'b':
if (str.StartsWith("b64::"))
{
try
{
byte[] data = Convert.FromBase64String(str.Substring(5));
return OSD.FromBinary(data);
}
catch (FormatException) { }
}
break;
}
return OSD.FromString((string)json);
case JsonType.Array:
OSDArray array = new OSDArray(json.Count);
for (int i = 0; i < json.Count; i++)
array.Add(DeserializeJson(json[i]));
return array;
case JsonType.Object:
OSDMap map = new OSDMap(json.Count);
foreach (KeyValuePair<string, JsonData> kvp in json)
map.Add(kvp.Key, DeserializeJson(kvp.Value));
return map;
case JsonType.None:
default:
return new OSD();
}
}
public static string SerializeJsonString(OSD osd)
{
return SerializeJson(osd).ToJson();
}
public static JsonData SerializeJson(OSD osd)
{
switch (osd.Type)
{
case OSDType.Boolean:
return new JsonData(osd.AsBoolean());
case OSDType.Integer:
return new JsonData(osd.AsInteger());
case OSDType.Real:
return new JsonData(osd.AsReal());
case OSDType.String:
return new JsonData(osd.AsString());
case OSDType.Date:
return new JsonData("date::" + osd.AsString());
case OSDType.URI:
return new JsonData("uri::" + osd.AsString());
case OSDType.UUID:
return new JsonData("uuid::" + osd.AsString());
case OSDType.Binary:
return new JsonData("b64::" + Convert.ToBase64String(osd.AsBinary()));
case OSDType.Array:
JsonData jsonarray = new JsonData();
OSDArray array = (OSDArray)osd;
for (int i = 0; i < array.Count; i++)
jsonarray.Add(SerializeJson(array[i]));
return jsonarray;
case OSDType.Map:
JsonData jsonmap = new JsonData();
OSDMap map = (OSDMap)osd;
foreach (KeyValuePair<string, OSD> kvp in map)
jsonmap[kvp.Key] = SerializeJson(kvp.Value);
return jsonmap;
case OSDType.Unknown:
default:
return new JsonData();
}
}
}
}

44
OpenMetaverse.StructuredData/JSON/ParserToken.cs Normal file
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#region Header
/**
* ParserToken.cs
* Internal representation of the tokens used by the lexer and the parser.
*
* The authors disclaim copyright to this source code. For more details, see
* the COPYING file included with this distribution.
**/
#endregion
namespace LitJson
{
internal enum ParserToken
{
// Lexer tokens
None = System.Char.MaxValue + 1,
Number,
True,
False,
Null,
CharSeq,
// Single char
Char,
// Parser Rules
Text,
Object,
ObjectPrime,
Pair,
PairRest,
Array,
ArrayPrime,
Value,
ValueRest,
String,
// End of input
End,
// The empty rule
Epsilon
}
}