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|
//
// PObject.cs
//
// Author:
// Mike Krüger <mkrueger@xamarin.com>
// Alex Corrado <corrado@xamarin.com>
//
// Copyright (c) 2011 Xamarin <http://xamarin.com>
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
// Now a purely managed implementation for plist reading & writing.
// Define POBJECT_MONOMAC to enable the conversions to/from NSObject and friends.
// Binary format reference: http://opensource.apple.com/source/CF/CF-635.21/CFBinaryPList.c
using System;
using System.IO;
using System.Xml;
using System.Text;
using System.Linq;
using System.Collections;
using System.Collections.Generic;
using System.Globalization;
using System.Security;
using System.Threading.Tasks;
using MonoDevelop.Core;
namespace MonoDevelop.Ide.Editor.Highlighting
{
abstract class PObject
{
public static PObject Create (PObjectType type)
{
switch (type) {
case PObjectType.Dictionary:
return new PDictionary ();
case PObjectType.Array:
return new PArray ();
case PObjectType.Number:
return new PNumber (0);
case PObjectType.Real:
return new PReal (0);
case PObjectType.Boolean:
return new PBoolean (true);
case PObjectType.Data:
return new PData (new byte [0]);
case PObjectType.String:
return new PString ("");
case PObjectType.Date:
return new PDate (DateTime.Now);
default:
throw new ArgumentOutOfRangeException ();
}
}
public static IEnumerable<KeyValuePair<string, PObject>> ToEnumerable (PObject obj)
{
if (obj is PDictionary)
return (PDictionary)obj;
if (obj is PArray)
return ((PArray)obj).Select (k => new KeyValuePair<string, PObject> (k is IPValueObject ? ((IPValueObject)k).Value.ToString () : null, k));
return Enumerable.Empty<KeyValuePair<string, PObject>> ();
}
PObjectContainer parent;
public PObjectContainer Parent {
get { return parent; }
set {
if (parent != null && value != null)
throw new NotSupportedException ("Already parented.");
parent = value;
}
}
public abstract PObject Clone ();
public void Replace (PObject newObject)
{
var p = Parent;
if (p is PDictionary) {
var dict = (PDictionary)p;
var key = dict.GetKey (this);
if (key == null)
return;
Remove ();
dict [key] = newObject;
} else if (p is PArray) {
var arr = (PArray)p;
arr.Replace (this, newObject);
}
}
public string Key {
get {
if (Parent is PDictionary) {
var dict = (PDictionary)Parent;
return dict.GetKey (this);
}
return null;
}
}
public void Remove ()
{
if (Parent is PDictionary) {
var dict = (PDictionary)Parent;
dict.Remove (Key);
} else if (Parent is PArray) {
var arr = (PArray)Parent;
arr.Remove (this);
} else {
if (Parent == null)
throw new InvalidOperationException ("Can't remove from null parent");
throw new InvalidOperationException ("Can't remove from parent " + Parent);
}
}
#if POBJECT_MONOMAC
public abstract NSObject Convert ();
#endif
public abstract PObjectType Type { get; }
public static implicit operator PObject (string value)
{
return new PString (value);
}
public static implicit operator PObject (int value)
{
return new PNumber (value);
}
public static implicit operator PObject (double value)
{
return new PReal (value);
}
public static implicit operator PObject (bool value)
{
return new PBoolean (value);
}
public static implicit operator PObject (DateTime value)
{
return new PDate (value);
}
public static implicit operator PObject (byte [] value)
{
return new PData (value);
}
protected virtual void OnChanged (EventArgs e)
{
if (SuppressChangeEvents)
return;
var handler = Changed;
if (handler != null)
handler (this, e);
if (Parent != null)
Parent.OnCollectionChanged (Key, this);
}
protected bool SuppressChangeEvents {
get; set;
}
public event EventHandler Changed;
public byte [] ToByteArray (bool binary)
{
var format = binary ? PropertyListFormat.Binary : PropertyListFormat.Xml;
using (var stream = new MemoryStream ()) {
using (var context = format.StartWriting (stream))
context.WriteObject (this);
return stream.ToArray ();
}
}
public string ToXml ()
{
return Encoding.UTF8.GetString (ToByteArray (false));
}
#if POBJECT_MONOMAC
static readonly IntPtr selObjCType = Selector.GetHandle ("objCType");
public static PObject FromNSObject (NSObject val)
{
if (val == null)
return null;
var dict = val as NSDictionary;
if (dict != null) {
var result = new PDictionary ();
foreach (var pair in dict) {
string k = pair.Key.ToString ();
result[k] = FromNSObject (pair.Value);
}
return result;
}
var arr = val as NSArray;
if (arr != null) {
var result = new PArray ();
uint count = arr.Count;
for (uint i = 0; i < count; i++) {
var obj = Runtime.GetNSObject (arr.ValueAt (i));
if (obj != null)
result.Add (FromNSObject (obj));
}
return result;
}
var str = val as NSString;
if (str != null)
return str.ToString ();
var nr = val as NSNumber;
if (nr != null) {
char t;
unsafe {
t = (char) *((byte*) MonoMac.ObjCRuntime.Messaging.IntPtr_objc_msgSend (val.Handle, selObjCType));
}
if (t == 'c' || t == 'C' || t == 'B')
return nr.BoolValue;
return nr.Int32Value;
}
var date = val as NSDate;
if (date != null)
return (DateTime) date;
var data = val as NSData;
if (data != null) {
var bytes = new byte[data.Length];
System.Runtime.InteropServices.Marshal.Copy (data.Bytes, bytes, 0, (int)data.Length);
return bytes;
}
throw new NotSupportedException (val.ToString ());
}
#endif
public static PObject FromByteArray (byte [] array, int startIndex, int length, out bool isBinary)
{
var ctx = PropertyListFormat.Binary.StartReading (array, startIndex, length);
isBinary = true;
try {
if (ctx == null) {
isBinary = false;
ctx = PropertyListFormat.CreateReadContext (array, startIndex, length);
if (ctx == null)
return null;
}
return ctx.ReadObject ();
} finally {
if (ctx != null)
ctx.Dispose ();
}
}
public static PObject FromByteArray (byte [] array, out bool isBinary)
{
return FromByteArray (array, 0, array.Length, out isBinary);
}
public static PObject FromString (string str)
{
var ctx = PropertyListFormat.CreateReadContext (Encoding.UTF8.GetBytes (str));
if (ctx == null)
return null;
return ctx.ReadObject ();
}
public static PObject FromStream (Stream stream)
{
var ctx = PropertyListFormat.CreateReadContext (stream);
if (ctx == null)
return null;
return ctx.ReadObject ();
}
}
abstract class PObjectContainer : PObject
{
public abstract int Count { get; }
public bool Reload (string fileName)
{
using (var stream = new FileStream (fileName, FileMode.Open, FileAccess.Read)) {
using (var ctx = PropertyListFormat.CreateReadContext (stream)) {
if (ctx == null)
return false;
return Reload (ctx);
}
}
}
protected abstract bool Reload (PropertyListFormat.ReadWriteContext ctx);
public Task SaveAsync (string filename, bool atomic = false, bool binary = false)
{
return Task.Factory.StartNew (() => Save (filename, atomic, binary));
}
public void Save (string filename, bool atomic = false, bool binary = false)
{
var tempFile = atomic ? GetTempFileName (filename) : filename;
try {
if (!Directory.Exists (Path.GetDirectoryName (tempFile)))
Directory.CreateDirectory (Path.GetDirectoryName (tempFile));
using (var stream = new FileStream (tempFile, FileMode.Create, FileAccess.Write)) {
using (var ctx = binary ? PropertyListFormat.Binary.StartWriting (stream) : PropertyListFormat.Xml.StartWriting (stream))
ctx.WriteObject (this);
}
if (atomic) {
if (File.Exists (filename))
File.Replace (tempFile, filename, null, true);
else
File.Move (tempFile, filename);
}
} finally {
if (atomic)
File.Delete (tempFile); // just in case- no exception is raised if file is not found
}
}
static string GetTempFileName (string filename)
{
var i = 1;
var tempfile = filename + ".tmp";
while (File.Exists (tempfile))
tempfile = filename + ".tmp." + (i++).ToString ();
return tempfile;
}
protected void OnChildAdded (string key, PObject child)
{
child.Parent = this;
OnCollectionChanged (PObjectContainerAction.Added, key, null, child);
}
internal void OnCollectionChanged (string key, PObject child)
{
OnCollectionChanged (PObjectContainerAction.Changed, key, null, child);
}
protected void OnChildRemoved (string key, PObject child)
{
child.Parent = null;
OnCollectionChanged (PObjectContainerAction.Removed, key, child, null);
}
protected void OnChildReplaced (string key, PObject oldChild, PObject newChild)
{
oldChild.Parent = null;
newChild.Parent = this;
OnCollectionChanged (PObjectContainerAction.Replaced, key, oldChild, newChild);
}
protected void OnCleared ()
{
OnCollectionChanged (PObjectContainerAction.Cleared, null, null, null);
}
protected void OnCollectionChanged (PObjectContainerAction action, string key, PObject oldChild, PObject newChild)
{
if (SuppressChangeEvents)
return;
var handler = CollectionChanged;
if (handler != null)
handler (this, new PObjectContainerEventArgs (action, key, oldChild, newChild));
OnChanged (EventArgs.Empty);
if (Parent != null)
Parent.OnCollectionChanged (Key, this);
}
public event EventHandler<PObjectContainerEventArgs> CollectionChanged;
}
interface IPValueObject
{
object Value { get; set; }
bool TrySetValueFromString (string text, IFormatProvider formatProvider);
}
abstract class PValueObject<T> : PObject, IPValueObject
{
T val;
public T Value {
get {
return val;
}
set {
val = value;
OnChanged (EventArgs.Empty);
}
}
object IPValueObject.Value {
get { return Value; }
set { Value = (T)value; }
}
protected PValueObject (T value)
{
Value = value;
}
protected PValueObject ()
{
}
public static implicit operator T (PValueObject<T> pObj)
{
return pObj != null ? pObj.Value : default (T);
}
public abstract bool TrySetValueFromString (string text, IFormatProvider formatProvider);
}
class PDictionary : PObjectContainer, IEnumerable<KeyValuePair<string, PObject>>
{
static readonly byte [] BeginMarkerBytes = Encoding.ASCII.GetBytes ("<?xml version=\"1.0\" encoding=\"UTF-8\"?>");
static readonly byte [] EndMarkerBytes = Encoding.ASCII.GetBytes ("</plist>");
readonly Dictionary<string, PObject> dict;
readonly List<string> order;
public PObject this [string key] {
get {
PObject value;
if (dict.TryGetValue (key, out value))
return value;
return null;
}
set {
PObject existing;
bool exists = dict.TryGetValue (key, out existing);
if (!exists)
order.Add (key);
dict [key] = value;
if (exists)
OnChildReplaced (key, existing, value);
else
OnChildAdded (key, value);
}
}
public void Add (string key, PObject value)
{
try {
dict.Add (key, value);
} catch (Exception e) {
LoggingService.LogError ("error while adding " + key);
throw e;
}
order.Add (key);
OnChildAdded (key, value);
}
public void InsertAfter (string keyBefore, string key, PObject value)
{
dict.Add (key, value);
order.Insert (order.IndexOf (keyBefore) + 1, key);
OnChildAdded (key, value);
}
public override int Count {
get { return dict.Count; }
}
#region IEnumerable[KeyValuePair[System.String,PObject]] implementation
public IEnumerator<KeyValuePair<string, PObject>> GetEnumerator ()
{
foreach (var key in order)
yield return new KeyValuePair<string, PObject> (key, dict [key]);
}
#endregion
#region IEnumerable implementation
IEnumerator IEnumerable.GetEnumerator ()
{
return GetEnumerator ();
}
#endregion
public PDictionary ()
{
dict = new Dictionary<string, PObject> ();
order = new List<string> ();
}
public override PObject Clone ()
{
var dict = new PDictionary ();
foreach (var kv in this)
dict.Add (kv.Key, kv.Value.Clone ());
return dict;
}
public bool ContainsKey (string name)
{
return dict.ContainsKey (name);
}
public bool Remove (string key)
{
PObject obj;
if (dict.TryGetValue (key, out obj)) {
dict.Remove (key);
order.Remove (key);
OnChildRemoved (key, obj);
return true;
}
return false;
}
public void Clear ()
{
dict.Clear ();
order.Clear ();
OnCleared ();
}
public bool ChangeKey (PObject obj, string newKey)
{
return ChangeKey (obj, newKey, null);
}
public bool ChangeKey (PObject obj, string newKey, PObject newValue)
{
var oldkey = GetKey (obj);
if (oldkey == null || dict.ContainsKey (newKey))
return false;
dict.Remove (oldkey);
dict.Add (newKey, newValue ?? obj);
order [order.IndexOf (oldkey)] = newKey;
if (newValue != null) {
OnChildRemoved (oldkey, obj);
OnChildAdded (newKey, newValue);
} else {
OnChildRemoved (oldkey, obj);
OnChildAdded (newKey, obj);
}
return true;
}
public string GetKey (PObject obj)
{
foreach (var pair in dict) {
if (pair.Value == obj)
return pair.Key;
}
return null;
}
public T Get<T> (string key) where T : PObject
{
PObject obj;
if (!dict.TryGetValue (key, out obj))
return null;
return obj as T;
}
public bool TryGetValue<T> (string key, out T value) where T : PObject
{
PObject obj;
if (!dict.TryGetValue (key, out obj)) {
value = default (T);
return false;
}
value = obj as T;
return value != null;
}
static int IndexOf (byte [] haystack, int startIndex, byte [] needle)
{
int maxLength = haystack.Length - needle.Length;
int n;
for (int i = startIndex; i < maxLength; i++) {
for (n = 0; n < needle.Length; n++) {
if (haystack [i + n] != needle [n])
break;
}
if (n == needle.Length)
return i;
}
return -1;
}
public static new PDictionary FromByteArray (byte [] array, int startIndex, int length, out bool isBinary)
{
return (PDictionary)PObject.FromByteArray (array, startIndex, length, out isBinary);
}
public static new PDictionary FromByteArray (byte [] array, out bool isBinary)
{
return (PDictionary)PObject.FromByteArray (array, out isBinary);
}
public static PDictionary FromBinaryXml (byte [] array)
{
//find the raw plist within the .mobileprovision file
int start = IndexOf (array, 0, BeginMarkerBytes);
bool binary;
int length;
if (start < 0 || (length = (IndexOf (array, start, EndMarkerBytes) - start)) < 1)
throw new Exception ("Did not find XML plist in buffer.");
length += EndMarkerBytes.Length;
return PDictionary.FromByteArray (array, start, length, out binary);
}
public static PDictionary FromFile (string fileName)
{
bool isBinary;
return FromFile (fileName, out isBinary);
}
public static Task<PDictionary> FromFileAsync (string fileName)
{
return Task<PDictionary>.Factory.StartNew (() => {
bool isBinary;
return FromFile (fileName, out isBinary);
});
}
public static PDictionary FromFile (string fileName, out bool isBinary)
{
using (var stream = new FileStream (fileName, FileMode.Open, FileAccess.Read)) {
return FromStream(stream, out isBinary);
}
}
new public static PDictionary FromStream (Stream stream)
{
bool isBinary;
return FromStream (stream, out isBinary);
}
public static PDictionary FromStream (Stream stream, out bool isBinary)
{
isBinary = true;
var ctx = PropertyListFormat.Binary.StartReading (stream);
try {
if (ctx == null) {
isBinary = false;
ctx = PropertyListFormat.CreateReadContext (stream);
if (ctx == null)
throw new FormatException ("Unrecognized property list format.");
}
return (PDictionary)ctx.ReadObject ();
} finally {
if (ctx != null)
ctx.Dispose ();
}
}
public static PDictionary FromBinaryXml (string fileName)
{
return FromBinaryXml (File.ReadAllBytes (fileName));
}
protected override bool Reload (PropertyListFormat.ReadWriteContext ctx)
{
SuppressChangeEvents = true;
var result = ctx.ReadDict (this);
SuppressChangeEvents = false;
if (result)
OnChanged (EventArgs.Empty);
return result;
}
public override string ToString ()
{
return string.Format ("[PDictionary: Items={0}]", dict.Count);
}
public void SetString (string key, string value)
{
var result = Get<PString> (key);
if (result == null)
this [key] = new PString (value);
else
result.Value = value;
}
public PString GetString (string key)
{
var result = Get<PString> (key);
if (result == null)
this [key] = result = new PString ("");
return result;
}
public PArray GetArray (string key)
{
var result = Get<PArray> (key);
if (result == null)
this [key] = result = new PArray ();
return result;
}
public override PObjectType Type {
get { return PObjectType.Dictionary; }
}
}
class PArray : PObjectContainer, IEnumerable<PObject>
{
List<PObject> list;
public override int Count {
get { return list.Count; }
}
public PObject this [int i] {
get {
return list [i];
}
set {
if (i < 0 || i >= Count)
throw new ArgumentOutOfRangeException ();
var existing = list [i];
list [i] = value;
OnChildReplaced (null, existing, value);
}
}
public PArray ()
{
list = new List<PObject> ();
}
public PArray (List<PObject> list)
{
this.list = list;
}
public override PObject Clone ()
{
var array = new PArray ();
foreach (var item in this)
array.Add (item.Clone ());
return array;
}
protected override bool Reload (PropertyListFormat.ReadWriteContext ctx)
{
SuppressChangeEvents = true;
var result = ctx.ReadArray (this);
SuppressChangeEvents = false;
if (result)
OnChanged (EventArgs.Empty);
return result;
}
public void Add (PObject obj)
{
list.Add (obj);
OnChildAdded (null, obj);
}
public void Insert (int index, PObject obj)
{
list.Insert (index, obj);
OnChildAdded (null, obj);
}
public void Replace (PObject oldObj, PObject newObject)
{
for (int i = 0; i < Count; i++) {
if (list [i] == oldObj) {
list [i] = newObject;
OnChildReplaced (null, oldObj, newObject);
break;
}
}
}
public void Remove (PObject obj)
{
if (list.Remove (obj))
OnChildRemoved (null, obj);
}
public void Clear ()
{
list.Clear ();
OnCleared ();
}
public override string ToString ()
{
return string.Format ("[PArray: Items={0}]", Count);
}
public void AssignStringList (string strList)
{
SuppressChangeEvents = true;
try {
Clear ();
foreach (var item in strList.Split (',', ' ')) {
if (string.IsNullOrEmpty (item))
continue;
Add (new PString (item));
}
} finally {
SuppressChangeEvents = false;
OnChanged (EventArgs.Empty);
}
}
public string [] ToStringArray ()
{
var strlist = new List<string> ();
foreach (PString str in list.OfType<PString> ())
strlist.Add (str.Value);
return strlist.ToArray ();
}
public string ToStringList ()
{
var sb = StringBuilderCache.Allocate ();
foreach (PString str in list.OfType<PString> ()) {
if (sb.Length > 0)
sb.Append (", ");
sb.Append (str);
}
return StringBuilderCache.ReturnAndFree (sb);
}
public IEnumerator<PObject> GetEnumerator ()
{
return list.GetEnumerator ();
}
IEnumerator IEnumerable.GetEnumerator ()
{
return list.GetEnumerator ();
}
public override PObjectType Type {
get { return PObjectType.Array; }
}
}
class PBoolean : PValueObject<bool>
{
public PBoolean (bool value) : base (value)
{
}
public override PObject Clone ()
{
return new PBoolean (Value);
}
public override PObjectType Type {
get { return PObjectType.Boolean; }
}
public override bool TrySetValueFromString (string text, IFormatProvider formatProvider)
{
const StringComparison ic = StringComparison.OrdinalIgnoreCase;
if ("true".Equals (text, ic) || "yes".Equals (text, ic)) {
Value = true;
return true;
}
if ("false".Equals (text, ic) || "no".Equals (text, ic)) {
Value = false;
return true;
}
return false;
}
}
class PData : PValueObject<byte []>
{
static readonly byte [] Empty = new byte [0];
#if POBJECT_MONOMAC
public override NSObject Convert ()
{
// Work around a bug in NSData.FromArray as it cannot (currently) handle
// zero length arrays
if (Value.Length == 0)
return new NSData ();
else
return NSData.FromArray (Value);
}
#endif
public PData (byte [] value) : base (value ?? Empty)
{
}
public override PObject Clone ()
{
return new PData (Value);
}
public override PObjectType Type {
get { return PObjectType.Data; }
}
public override bool TrySetValueFromString (string text, IFormatProvider formatProvider)
{
return false;
}
}
class PDate : PValueObject<DateTime>
{
public PDate (DateTime value) : base (value)
{
}
public override PObject Clone ()
{
return new PDate (Value);
}
public override PObjectType Type {
get { return PObjectType.Date; }
}
public override bool TrySetValueFromString (string text, IFormatProvider formatProvider)
{
DateTime result;
if (DateTime.TryParse (text, formatProvider, DateTimeStyles.None, out result)) {
Value = result;
return true;
}
return false;
}
}
class PNumber : PValueObject<int>
{
public PNumber (int value) : base (value)
{
}
public override PObject Clone ()
{
return new PNumber (Value);
}
#if POBJECT_MONOMAC
public override NSObject Convert ()
{
return NSNumber.FromInt32 (Value);
}
#endif
public override PObjectType Type {
get { return PObjectType.Number; }
}
public override bool TrySetValueFromString (string text, IFormatProvider formatProvider)
{
int result;
if (int.TryParse (text, NumberStyles.Integer, formatProvider, out result)) {
Value = result;
return true;
}
return false;
}
}
class PReal : PValueObject<double>
{
public PReal (double value) : base (value)
{
}
public override PObject Clone ()
{
return new PReal (Value);
}
public override PObjectType Type {
get { return PObjectType.Real; }
}
public override bool TrySetValueFromString (string text, IFormatProvider formatProvider)
{
double result;
if (double.TryParse (text, NumberStyles.AllowDecimalPoint, formatProvider, out result)) {
Value = result;
return true;
}
return false;
}
}
class PString : PValueObject<string>
{
public PString (string value) : base (value)
{
if (value == null)
throw new ArgumentNullException ("value");
}
public override PObject Clone ()
{
return new PString (Value);
}
#if POBJECT_MONOMAC
public override NSObject Convert ()
{
return new NSString (Value);
}
#endif
public override PObjectType Type {
get { return PObjectType.String; }
}
public override bool TrySetValueFromString (string text, IFormatProvider formatProvider)
{
Value = text;
return true;
}
}
abstract class PropertyListFormat
{
public static readonly PropertyListFormat Xml = new XmlFormat ();
public static readonly PropertyListFormat Binary = new BinaryFormat ();
// Stream must be seekable
public static ReadWriteContext CreateReadContext (Stream input)
{
return Binary.StartReading (input) ?? Xml.StartReading (input);
}
public static ReadWriteContext CreateReadContext (byte [] array, int startIndex, int length)
{
return CreateReadContext (new MemoryStream (array, startIndex, length));
}
public static ReadWriteContext CreateReadContext (byte [] array)
{
return CreateReadContext (new MemoryStream (array, 0, array.Length));
}
// returns null if the input is not of the correct format. Stream must be seekable
public abstract ReadWriteContext StartReading (Stream input);
public abstract ReadWriteContext StartWriting (Stream output);
public ReadWriteContext StartReading (byte [] array, int startIndex, int length)
{
return StartReading (new MemoryStream (array, startIndex, length));
}
public ReadWriteContext StartReading (byte [] array)
{
return StartReading (new MemoryStream (array, 0, array.Length));
}
class BinaryFormat : PropertyListFormat
{
// magic is bplist + 2 byte version id
static readonly byte [] BPLIST_MAGIC = { 0x62, 0x70, 0x6C, 0x69, 0x73, 0x74 }; // "bplist"
static readonly byte [] BPLIST_VERSION = { 0x30, 0x30 }; // "00"
public override ReadWriteContext StartReading (Stream input)
{
if (input.Length < BPLIST_MAGIC.Length + 2)
return null;
input.Seek (0, SeekOrigin.Begin);
for (var i = 0; i < BPLIST_MAGIC.Length; i++) {
if ((byte)input.ReadByte () != BPLIST_MAGIC [i])
return null;
}
// skip past the 2 byte version id for now
// we currently don't bother checking it because it seems different versions of OSX might write different values here?
input.Seek (2, SeekOrigin.Current);
return new Context (input, true);
}
public override ReadWriteContext StartWriting (Stream output)
{
output.Write (BPLIST_MAGIC, 0, BPLIST_MAGIC.Length);
output.Write (BPLIST_VERSION, 0, BPLIST_VERSION.Length);
return new Context (output, false);
}
class Context : ReadWriteContext
{
static readonly DateTime AppleEpoch = new DateTime (2001, 1, 1, 0, 0, 0, DateTimeKind.Utc); //see CFDateGetAbsoluteTime
//https://github.com/mono/referencesource/blob/mono/mscorlib/system/datetime.cs
const long TicksPerMillisecond = 10000;
const long TicksPerSecond = TicksPerMillisecond * 1000;
Stream stream;
int currentLength;
CFBinaryPlistTrailer trailer;
//for writing
List<object> objectRefs;
int currentRef;
long [] offsets;
public Context (Stream stream, bool reading)
{
this.stream = stream;
if (reading) {
trailer = CFBinaryPlistTrailer.Read (this);
ReadObjectHead ();
}
}
#region Binary reading members
protected override bool ReadBool ()
{
return CurrentType == PlistType.@true;
}
protected override void ReadObjectHead ()
{
var b = stream.ReadByte ();
var len = 0L;
var type = (PlistType)(b & 0xF0);
if (type == PlistType.@null) {
type = (PlistType)b;
} else {
len = b & 0x0F;
if (len == 0xF) {
ReadObjectHead ();
len = ReadInteger ();
}
}
CurrentType = type;
currentLength = (int)len;
}
protected override long ReadInteger ()
{
switch (CurrentType) {
case PlistType.integer:
return ReadBigEndianInteger ((int)Math.Pow (2, currentLength));
}
throw new NotSupportedException ("Integer of type: " + CurrentType);
}
protected override double ReadReal ()
{
var bytes = ReadBigEndianBytes ((int)Math.Pow (2, currentLength));
switch (CurrentType) {
case PlistType.real:
switch (bytes.Length) {
case 4:
return (double)BitConverter.ToSingle (bytes, 0);
case 8:
return BitConverter.ToDouble (bytes, 0);
}
throw new NotSupportedException (bytes.Length + "-byte real");
}
throw new NotSupportedException ("Real of type: " + CurrentType);
}
protected override DateTime ReadDate ()
{
var bytes = ReadBigEndianBytes (8);
var seconds = BitConverter.ToDouble (bytes, 0);
// We need to manually convert the seconds to ticks because
// .NET DateTime/TimeSpan methods dealing with (milli)seconds
// round to the nearest millisecond (bxc #29079)
return AppleEpoch.AddTicks ((long)(seconds * TicksPerSecond));
}
protected override byte [] ReadData ()
{
var bytes = new byte [currentLength];
stream.Read (bytes, 0, currentLength);
return bytes;
}
protected override string ReadString ()
{
byte [] bytes;
switch (CurrentType) {
case PlistType.@string: // ASCII
bytes = new byte [currentLength];
stream.Read (bytes, 0, bytes.Length);
return Encoding.ASCII.GetString (bytes);
case PlistType.wideString: //CFBinaryPList.c: Unicode string...big-endian 2-byte uint16_t
bytes = new byte [currentLength * 2];
stream.Read (bytes, 0, bytes.Length);
return Encoding.BigEndianUnicode.GetString (bytes);
}
throw new NotSupportedException ("String of type: " + CurrentType);
}
public override bool ReadArray (PArray array)
{
if (CurrentType != PlistType.array)
return false;
array.Clear ();
// save currentLength as it will be overwritten by next ReadObjectHead call
var len = currentLength;
for (var i = 0; i < len; i++) {
var obj = ReadObjectByRef ();
if (obj != null)
array.Add (obj);
}
return true;
}
public override bool ReadDict (PDictionary dict)
{
if (CurrentType != PlistType.dict)
return false;
dict.Clear ();
// save currentLength as it will be overwritten by next ReadObjectHead call
var len = currentLength;
var keys = new string [len];
for (var i = 0; i < len; i++)
keys [i] = ((PString)ReadObjectByRef ()).Value;
for (var i = 0; i < len; i++)
dict.Add (keys [i], ReadObjectByRef ());
return true;
}
PObject ReadObjectByRef ()
{
// read index into offset table
var objRef = (long)ReadBigEndianUInteger (trailer.ObjectRefSize);
// read offset in file from table
var lastPos = stream.Position;
stream.Seek (trailer.OffsetTableOffset + objRef * trailer.OffsetEntrySize, SeekOrigin.Begin);
stream.Seek ((long)ReadBigEndianUInteger (trailer.OffsetEntrySize), SeekOrigin.Begin);
ReadObjectHead ();
var obj = ReadObject ();
// restore original position
stream.Seek (lastPos, SeekOrigin.Begin);
return obj;
}
byte [] ReadBigEndianBytes (int count)
{
var bytes = new byte [count];
stream.Read (bytes, 0, count);
if (BitConverter.IsLittleEndian)
Array.Reverse (bytes);
return bytes;
}
long ReadBigEndianInteger (int numBytes)
{
var bytes = ReadBigEndianBytes (numBytes);
switch (numBytes) {
case 1:
return (long)bytes [0];
case 2:
return (long)BitConverter.ToInt16 (bytes, 0);
case 4:
return (long)BitConverter.ToInt32 (bytes, 0);
case 8:
return BitConverter.ToInt64 (bytes, 0);
}
throw new NotSupportedException (bytes.Length + "-byte integer");
}
ulong ReadBigEndianUInteger (int numBytes)
{
var bytes = ReadBigEndianBytes (numBytes);
switch (numBytes) {
case 1:
return (ulong)bytes [0];
case 2:
return (ulong)BitConverter.ToUInt16 (bytes, 0);
case 4:
return (ulong)BitConverter.ToUInt32 (bytes, 0);
case 8:
return BitConverter.ToUInt64 (bytes, 0);
}
throw new NotSupportedException (bytes.Length + "-byte integer");
}
ulong ReadBigEndianUInt64 ()
{
var bytes = ReadBigEndianBytes (8);
return BitConverter.ToUInt64 (bytes, 0);
}
#endregion
#region Binary writing members
public override void WriteObject (PObject value)
{
if (offsets == null)
InitOffsetTable (value);
base.WriteObject (value);
}
protected override void Write (PBoolean boolean)
{
WriteObjectHead (boolean, boolean ? PlistType.@true : PlistType.@false);
}
protected override void Write (PNumber number)
{
if (WriteObjectHead (number, PlistType.integer))
Write (number.Value);
}
protected override void Write (PReal real)
{
if (WriteObjectHead (real, PlistType.real))
Write (real.Value);
}
protected override void Write (PDate date)
{
if (WriteObjectHead (date, PlistType.date)) {
var bytes = MakeBigEndian (BitConverter.GetBytes (date.Value.Subtract (AppleEpoch).TotalSeconds));
stream.Write (bytes, 0, bytes.Length);
}
}
protected override void Write (PData data)
{
var bytes = data.Value;
if (WriteObjectHead (data, PlistType.data, bytes.Length))
stream.Write (bytes, 0, bytes.Length);
}
protected override void Write (PString str)
{
var type = PlistType.@string;
byte [] bytes;
if (str.Value.Any (c => c > 127)) {
type = PlistType.wideString;
bytes = Encoding.BigEndianUnicode.GetBytes (str.Value);
} else {
bytes = Encoding.ASCII.GetBytes (str.Value);
}
if (WriteObjectHead (str, type, str.Value.Length))
stream.Write (bytes, 0, bytes.Length);
}
protected override void Write (PArray array)
{
if (!WriteObjectHead (array, PlistType.array, array.Count))
return;
var curRef = currentRef;
foreach (var item in array)
Write (GetObjRef (item), trailer.ObjectRefSize);
currentRef = curRef;
foreach (var item in array)
WriteObject (item);
}
protected override void Write (PDictionary dict)
{
if (!WriteObjectHead (dict, PlistType.dict, dict.Count))
return;
// it sucks we have to loop so many times, but we gotta do it
// if we want to lay things out the same way apple does
var curRef = currentRef;
//write key refs
foreach (var item in dict)
Write (GetObjRef (item.Key), trailer.ObjectRefSize);
//write value refs
foreach (var item in dict)
Write (GetObjRef (item.Value), trailer.ObjectRefSize);
currentRef = curRef;
//write keys and values
foreach (var item in dict)
WriteObject (item.Key);
foreach (var item in dict)
WriteObject (item.Value);
}
bool WriteObjectHead (PObject obj, PlistType type, int size = 0)
{
var id = GetObjRef (obj);
if (offsets [id] != 0) // if we've already been written, don't write us again
return false;
offsets [id] = stream.Position;
switch (type) {
case PlistType.@null:
case PlistType.@false:
case PlistType.@true:
case PlistType.fill:
stream.WriteByte ((byte)type);
break;
case PlistType.date:
stream.WriteByte (0x33);
break;
case PlistType.integer:
case PlistType.real:
break;
default:
if (size < 15) {
stream.WriteByte ((byte)((byte)type | size));
} else {
stream.WriteByte ((byte)((byte)type | 0xF));
Write (size);
}
break;
}
return true;
}
void Write (double value)
{
if (value >= float.MinValue && value <= float.MaxValue) {
stream.WriteByte ((byte)PlistType.real | 0x2);
var bytes = MakeBigEndian (BitConverter.GetBytes ((float)value));
stream.Write (bytes, 0, bytes.Length);
} else {
stream.WriteByte ((byte)PlistType.real | 0x3);
var bytes = MakeBigEndian (BitConverter.GetBytes (value));
stream.Write (bytes, 0, bytes.Length);
}
}
void Write (int value)
{
if (value < 0) { //they always write negative numbers with 8 bytes
stream.WriteByte ((byte)PlistType.integer | 0x3);
var bytes = MakeBigEndian (BitConverter.GetBytes ((long)value));
stream.Write (bytes, 0, bytes.Length);
} else if (value >= 0 && value < byte.MaxValue) {
stream.WriteByte ((byte)PlistType.integer);
stream.WriteByte ((byte)value);
} else if (value >= short.MinValue && value < short.MaxValue) {
stream.WriteByte ((byte)PlistType.integer | 0x1);
var bytes = MakeBigEndian (BitConverter.GetBytes ((short)value));
stream.Write (bytes, 0, bytes.Length);
} else {
stream.WriteByte ((byte)PlistType.integer | 0x2);
var bytes = MakeBigEndian (BitConverter.GetBytes (value));
stream.Write (bytes, 0, bytes.Length);
}
}
void Write (long value, int byteCount)
{
byte [] bytes;
switch (byteCount) {
case 1:
stream.WriteByte ((byte)value);
break;
case 2:
bytes = MakeBigEndian (BitConverter.GetBytes ((short)value));
stream.Write (bytes, 0, bytes.Length);
break;
case 4:
bytes = MakeBigEndian (BitConverter.GetBytes ((int)value));
stream.Write (bytes, 0, bytes.Length);
break;
case 8:
bytes = MakeBigEndian (BitConverter.GetBytes (value));
stream.Write (bytes, 0, bytes.Length);
break;
default:
throw new NotSupportedException (byteCount.ToString () + "-byte integer");
}
}
void InitOffsetTable (PObject topLevel)
{
objectRefs = new List<object> ();
var count = 0;
MakeObjectRefs (topLevel, ref count);
trailer.ObjectRefSize = GetMinByteLength (count);
offsets = new long [count];
}
void MakeObjectRefs (object obj, ref int count)
{
if (obj == null)
return;
if (ShouldDuplicate (obj) || !objectRefs.Any (val => PObjectEqualityComparer.Instance.Equals (val, obj))) {
objectRefs.Add (obj);
count++;
}
// for containers, also count their contents
var pobj = obj as PObject;
if (pobj != null) {
switch (pobj.Type) {
case PObjectType.Array:
foreach (var child in (PArray)obj)
MakeObjectRefs (child, ref count);
break;
case PObjectType.Dictionary:
foreach (var child in (PDictionary)obj)
MakeObjectRefs (child.Key, ref count);
foreach (var child in (PDictionary)obj)
MakeObjectRefs (child.Value, ref count);
break;
}
}
}
static bool ShouldDuplicate (object obj)
{
var pobj = obj as PObject;
if (pobj == null)
return false;
return pobj.Type == PObjectType.Boolean || pobj.Type == PObjectType.Array || pobj.Type == PObjectType.Dictionary ||
(pobj.Type == PObjectType.String && ((PString)pobj).Value.Any (c => c > 255)); //LAMESPEC: this is weird. Some things are duplicated
}
int GetObjRef (object obj)
{
if (currentRef < objectRefs.Count && PObjectEqualityComparer.Instance.Equals (objectRefs [currentRef], obj))
return currentRef++;
return objectRefs.FindIndex (val => PObjectEqualityComparer.Instance.Equals (val, obj));
}
static int GetMinByteLength (long value)
{
if (value >= 0 && value < byte.MaxValue)
return 1;
if (value >= short.MinValue && value < short.MaxValue)
return 2;
if (value >= int.MinValue && value < int.MaxValue)
return 4;
return 8;
}
static byte [] MakeBigEndian (byte [] bytes)
{
if (BitConverter.IsLittleEndian)
Array.Reverse (bytes);
return bytes;
}
#endregion
public override void Dispose ()
{
if (offsets != null) {
trailer.OffsetTableOffset = stream.Position;
trailer.OffsetEntrySize = GetMinByteLength (trailer.OffsetTableOffset);
foreach (var offset in offsets)
Write (offset, trailer.OffsetEntrySize);
//LAMESPEC: seems like they always add 6 extra bytes here. not sure why
for (var i = 0; i < 6; i++)
stream.WriteByte ((byte)0);
trailer.Write (this);
}
}
class PObjectEqualityComparer : IEqualityComparer<object>
{
public static readonly PObjectEqualityComparer Instance = new PObjectEqualityComparer ();
PObjectEqualityComparer ()
{
}
public new bool Equals (object x, object y)
{
var vx = x as IPValueObject;
var vy = y as IPValueObject;
if (vx == null && vy == null)
return EqualityComparer<object>.Default.Equals (x, y);
if (vx == null && x != null && vy.Value != null)
return vy.Value.Equals (x);
if (vy == null && y != null && vx.Value != null)
return vx.Value.Equals (y);
if (vx == null || vy == null)
return false;
return vx.Value.Equals (vy.Value);
}
public int GetHashCode (object obj)
{
var valueObj = obj as IPValueObject;
if (valueObj != null)
return valueObj.Value.GetHashCode ();
return obj.GetHashCode ();
}
}
struct CFBinaryPlistTrailer
{
const int TRAILER_SIZE = 26;
public int OffsetEntrySize;
public int ObjectRefSize;
public long ObjectCount;
public long TopLevelRef;
public long OffsetTableOffset;
public static CFBinaryPlistTrailer Read (Context ctx)
{
var pos = ctx.stream.Position;
ctx.stream.Seek (-TRAILER_SIZE, SeekOrigin.End);
var result = new CFBinaryPlistTrailer {
OffsetEntrySize = ctx.stream.ReadByte (),
ObjectRefSize = ctx.stream.ReadByte (),
ObjectCount = (long)ctx.ReadBigEndianUInt64 (),
TopLevelRef = (long)ctx.ReadBigEndianUInt64 (),
OffsetTableOffset = (long)ctx.ReadBigEndianUInt64 ()
};
ctx.stream.Seek (pos, SeekOrigin.Begin);
return result;
}
public void Write (Context ctx)
{
byte [] bytes;
ctx.stream.WriteByte ((byte)OffsetEntrySize);
ctx.stream.WriteByte ((byte)ObjectRefSize);
//LAMESPEC: apple's comments say this is the number of entries in the offset table, but this really *is* number of objects??!?!
bytes = MakeBigEndian (BitConverter.GetBytes ((long)ctx.objectRefs.Count));
ctx.stream.Write (bytes, 0, bytes.Length);
bytes = new byte [8]; //top level always at offset 0
ctx.stream.Write (bytes, 0, bytes.Length);
bytes = MakeBigEndian (BitConverter.GetBytes (OffsetTableOffset));
ctx.stream.Write (bytes, 0, bytes.Length);
}
}
}
}
// Adapted from:
//https://github.com/mono/monodevelop/blob/07d9e6c07e5be8fe1d8d6f4272d3969bb087a287/main/src/addins/MonoDevelop.MacDev/MonoDevelop.MacDev.Plist/PlistDocument.cs
class XmlFormat : PropertyListFormat
{
const string PLIST_HEADER = @"<?xml version=""1.0"" encoding=""UTF-8""?>
<!DOCTYPE plist PUBLIC ""-//Apple//DTD PLIST 1.0//EN"" ""http://www.apple.com/DTDs/PropertyList-1.0.dtd"">
<plist version=""1.0"">
";
static readonly Encoding outputEncoding = new UTF8Encoding (false, false);
public override ReadWriteContext StartReading (Stream input)
{
//allow DTD but not try to resolve it from web
var settings = new XmlReaderSettings () {
CloseInput = true,
DtdProcessing = DtdProcessing.Ignore,
XmlResolver = null,
};
XmlReader reader = null;
input.Seek (0, SeekOrigin.Begin);
try {
reader = XmlReader.Create (input, settings);
reader.ReadToDescendant ("plist");
while (reader.Read () && reader.NodeType != XmlNodeType.Element)
;
} catch (Exception ex) {
Console.WriteLine ("Exception: {0}", ex);
}
if (reader == null || reader.EOF)
return null;
return new Context (reader);
}
public override ReadWriteContext StartWriting (Stream output)
{
var writer = new StreamWriter (output, outputEncoding);
writer.Write (PLIST_HEADER);
return new Context (writer);
}
class Context : ReadWriteContext
{
const string DATETIME_FORMAT = "yyyy-MM-dd'T'HH:mm:ssK";
XmlReader reader;
TextWriter writer;
int indentLevel;
string indentString;
public Context (XmlReader reader)
{
this.reader = reader;
ReadObjectHead ();
}
public Context (TextWriter writer)
{
this.writer = writer;
indentString = "";
}
#region XML reading members
protected override void ReadObjectHead ()
{
try {
CurrentType = (PlistType)Enum.Parse (typeof (PlistType), reader.LocalName);
} catch (Exception ex) {
throw new ArgumentException (string.Format ("Failed to parse PList data type: {0}", reader.LocalName), ex);
}
}
protected override bool ReadBool ()
{
// Create the PBoolean object, then move to the xml reader to next node
// so we are ready to parse the next object. 'bool' types don't have
// content so we have to move the reader manually, unlike integers which
// implicitly move to the next node because we parse the content.
var result = CurrentType == PlistType.@true;
reader.Read ();
return result;
}
protected override long ReadInteger ()
{
return reader.ReadElementContentAsLong ();
}
protected override double ReadReal ()
{
return reader.ReadElementContentAsDouble ();
}
protected override DateTime ReadDate ()
{
return DateTime.ParseExact (reader.ReadElementContentAsString (), DATETIME_FORMAT, CultureInfo.InvariantCulture).ToUniversalTime ();
}
protected override byte [] ReadData ()
{
return Convert.FromBase64String (reader.ReadElementContentAsString ());
}
protected override string ReadString ()
{
return reader.ReadElementContentAsString ();
}
public override bool ReadArray (PArray array)
{
if (CurrentType != PlistType.array)
return false;
array.Clear ();
if (reader.IsEmptyElement) {
reader.Read ();
return true;
}
// advance to first node
reader.ReadStartElement ();
while (!reader.EOF && reader.NodeType != XmlNodeType.Element && reader.NodeType != XmlNodeType.EndElement) {
if (!reader.Read ())
break;
}
while (!reader.EOF && reader.NodeType != XmlNodeType.EndElement) {
if (reader.NodeType == XmlNodeType.Element) {
ReadObjectHead ();
var val = ReadObject ();
if (val != null)
array.Add (val);
} else if (!reader.Read ()) {
break;
}
}
if (!reader.EOF && reader.NodeType == XmlNodeType.EndElement && reader.Name == "array") {
reader.ReadEndElement ();
return true;
}
return false;
}
public override bool ReadDict (PDictionary dict)
{
if (CurrentType != PlistType.dict)
return false;
dict.Clear ();
if (reader.IsEmptyElement) {
reader.Read ();
return true;
}
reader.ReadToDescendant ("key");
while (!reader.EOF && reader.NodeType == XmlNodeType.Element) {
var key = reader.ReadElementString ();
while (!reader.EOF && reader.NodeType != XmlNodeType.Element && reader.Read ()) {
if (reader.NodeType == XmlNodeType.EndElement)
throw new FormatException (string.Format ("No value found for key {0}", key));
}
ReadObjectHead ();
var result = ReadObject ();
if (result != null)
dict.Add (key, result);
do {
if (reader.NodeType == XmlNodeType.Element && reader.Name == "key")
break;
if (reader.NodeType == XmlNodeType.EndElement)
break;
} while (reader.Read ());
}
if (!reader.EOF && reader.NodeType == XmlNodeType.EndElement && reader.Name == "dict") {
reader.ReadEndElement ();
return true;
}
return false;
}
#endregion
#region XML writing members
protected override void Write (PBoolean boolean)
{
WriteLine (boolean.Value ? "<true/>" : "<false/>");
}
protected override void Write (PNumber number)
{
WriteLine ("<integer>" + SecurityElement.Escape (number.Value.ToString (CultureInfo.InvariantCulture)) + "</integer>");
}
protected override void Write (PReal real)
{
WriteLine ("<real>" + SecurityElement.Escape (real.Value.ToString (CultureInfo.InvariantCulture)) + "</real>");
}
protected override void Write (PDate date)
{
WriteLine ("<date>" + SecurityElement.Escape (date.Value.ToString (DATETIME_FORMAT, CultureInfo.InvariantCulture)) + "</date>");
}
protected override void Write (PData data)
{
WriteLine ("<data>" + SecurityElement.Escape (Convert.ToBase64String (data.Value)) + "</data>");
}
protected override void Write (PString str)
{
WriteLine ("<string>" + SecurityElement.Escape (str.Value) + "</string>");
}
protected override void Write (PArray array)
{
if (array.Count == 0) {
WriteLine ("<array/>");
return;
}
WriteLine ("<array>");
IncreaseIndent ();
foreach (var item in array)
WriteObject (item);
DecreaseIndent ();
WriteLine ("</array>");
}
protected override void Write (PDictionary dict)
{
if (dict.Count == 0) {
WriteLine ("<dict/>");
return;
}
WriteLine ("<dict>");
IncreaseIndent ();
foreach (var kv in dict) {
WriteLine ("<key>" + SecurityElement.Escape (kv.Key) + "</key>");
WriteObject (kv.Value);
}
DecreaseIndent ();
WriteLine ("</dict>");
}
void WriteLine (string value)
{
writer.Write (indentString);
writer.Write (value);
writer.Write ('\n');
}
void IncreaseIndent ()
{
indentString = new string ('\t', ++indentLevel);
}
void DecreaseIndent ()
{
indentString = new string ('\t', --indentLevel);
}
#endregion
public override void Dispose ()
{
if (writer != null) {
writer.Write ("</plist>\n");
writer.Flush ();
writer.Dispose ();
}
}
}
}
public abstract class ReadWriteContext : IDisposable
{
// Binary: The type is encoded in the 4 high bits; the low bits are data (except: null, true, false)
// Xml: The enum value name == element tag name (this actually reads a superset of the format, since null, fill and wideString are not plist xml elements afaik)
protected enum PlistType : byte
{
@null = 0x00,
@false = 0x08,
@true = 0x09,
fill = 0x0F,
integer = 0x10,
real = 0x20,
date = 0x30,
data = 0x40,
@string = 0x50,
wideString = 0x60,
array = 0xA0,
dict = 0xD0,
}
#region Reading members
public PObject ReadObject ()
{
switch (CurrentType) {
case PlistType.@true:
case PlistType.@false:
return new PBoolean (ReadBool ());
case PlistType.fill:
ReadObjectHead ();
return ReadObject ();
case PlistType.integer:
return new PNumber ((int)ReadInteger ()); //FIXME: should PNumber handle 64-bit values? ReadInteger can if necessary
case PlistType.real:
return new PReal (ReadReal ()); //FIXME: we should probably make PNumber take floating point as well as ints
case PlistType.date:
return new PDate (ReadDate ());
case PlistType.data:
return new PData (ReadData ());
case PlistType.@string:
case PlistType.wideString:
return new PString (ReadString ());
case PlistType.array:
var array = new PArray ();
ReadArray (array);
return array;
case PlistType.dict:
var dict = new PDictionary ();
ReadDict (dict);
return dict;
}
return null;
}
protected abstract void ReadObjectHead ();
protected PlistType CurrentType { get; set; }
protected abstract bool ReadBool ();
protected abstract long ReadInteger ();
protected abstract double ReadReal ();
protected abstract DateTime ReadDate ();
protected abstract byte [] ReadData ();
protected abstract string ReadString ();
public abstract bool ReadArray (PArray array);
public abstract bool ReadDict (PDictionary dict);
#endregion
#region Writing members
public virtual void WriteObject (PObject value)
{
switch (value.Type) {
case PObjectType.Boolean:
Write ((PBoolean)value);
return;
case PObjectType.Number:
Write ((PNumber)value);
return;
case PObjectType.Real:
Write ((PReal)value);
return;
case PObjectType.Date:
Write ((PDate)value);
return;
case PObjectType.Data:
Write ((PData)value);
return;
case PObjectType.String:
Write ((PString)value);
return;
case PObjectType.Array:
Write ((PArray)value);
return;
case PObjectType.Dictionary:
Write ((PDictionary)value);
return;
}
throw new NotSupportedException (value.Type.ToString ());
}
protected abstract void Write (PBoolean boolean);
protected abstract void Write (PNumber number);
protected abstract void Write (PReal real);
protected abstract void Write (PDate date);
protected abstract void Write (PData data);
protected abstract void Write (PString str);
protected abstract void Write (PArray array);
protected abstract void Write (PDictionary dict);
#endregion
public abstract void Dispose ();
}
}
enum PObjectContainerAction
{
Added,
Changed,
Removed,
Replaced,
Cleared
}
sealed class PObjectContainerEventArgs : EventArgs
{
internal PObjectContainerEventArgs (PObjectContainerAction action, string key, PObject oldItem, PObject newItem)
{
Action = action;
Key = key;
OldItem = oldItem;
NewItem = newItem;
}
public PObjectContainerAction Action {
get; private set;
}
public string Key {
get; private set;
}
public PObject OldItem {
get; private set;
}
public PObject NewItem {
get; private set;
}
}
enum PObjectType
{
Dictionary,
Array,
Real,
Number,
Boolean,
Data,
String,
Date
}
}
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