20 files changed, 179 insertions, 65 deletions

diff --git a/include/plist/Array.h b/include/plist/Array.h
index f990928..106555d 100644
--- a/include/plist/Array.h
+++ b/include/plist/Array.h
@@ -34,9 +34,11 @@ class Array : public Structure
         Array();
         Array(plist_t node);
         Array(Array& a);
-        Array& operator=(const Array& a);
+        Array& operator=(Array& a);
         virtual ~Array();
-        
+
+        Node* Clone();
+
         Node* operator[](unsigned int index);
         void Append(Node* node);
         void Insert(Node* node, unsigned int pos);
diff --git a/include/plist/Boolean.h b/include/plist/Boolean.h
index 01b5b85..917bc9d 100644
--- a/include/plist/Boolean.h
+++ b/include/plist/Boolean.h
@@ -32,9 +32,13 @@ class Boolean : public Node
     public :
         Boolean();
         Boolean(plist_t node);
+        Boolean(Boolean& b);
+        Boolean& operator=(Boolean& b);
         Boolean(bool b);
         virtual ~Boolean();
 
+        Node* Clone();
+
         void SetValue(bool b);
         bool GetValue();
 };
diff --git a/include/plist/Data.h b/include/plist/Data.h
index 92bda0a..86a26d9 100644
--- a/include/plist/Data.h
+++ b/include/plist/Data.h
@@ -33,10 +33,14 @@ class Data : public Node
     public :
         Data();
         Data(plist_t node);
-        Data(std::vector<char>& buff);
+        Data(Data& d);
+        Data& operator=(Data& d);
+        Data(const std::vector<char>& buff);
         virtual ~Data();
 
-        void SetValue(std::vector<char>& buff);
+        Node* Clone();
+
+        void SetValue(const std::vector<char>& buff);
         std::vector<char> GetValue();
 };
 
diff --git a/include/plist/Date.h b/include/plist/Date.h
index 78d8601..e9645aa 100644
--- a/include/plist/Date.h
+++ b/include/plist/Date.h
@@ -32,9 +32,13 @@ class Date : public Node
     public :
         Date();
         Date(plist_t node);
+        Date(Date& d);
+        Date& operator=(Date& d);
         Date(uint64_t i);
         virtual ~Date();
 
+        Node* Clone();
+
         void SetValue(uint64_t i);
         uint64_t GetValue();
 };
diff --git a/include/plist/Dictionary.h b/include/plist/Dictionary.h
index 8468ab5..6169774 100644
--- a/include/plist/Dictionary.h
+++ b/include/plist/Dictionary.h
@@ -35,17 +35,19 @@ class Dictionary : public Structure
         Dictionary();
         Dictionary(plist_t node);
         Dictionary(Dictionary& d);
-        Dictionary& operator=(const Dictionary& d);
+        Dictionary& operator=(Dictionary& d);
         virtual ~Dictionary();
-        
+
+        Node* Clone();
+
         typedef std::map<std::string,Node*>::iterator iterator;
         
-        Node* operator[](std::string& key);
+        Node* operator[](const std::string& key);
         iterator Begin();
         iterator End();
-        void Insert(std::string& key, Node* node);
+        void Insert(const std::string& key, Node* node);
         void Remove(Node* node);
-        void Remove(std::string& key);
+        void Remove(const std::string& key);
         
     private :
         std::map<std::string,Node*> _map;
diff --git a/include/plist/Integer.h b/include/plist/Integer.h
index 823e3a0..3a3a0e3 100644
--- a/include/plist/Integer.h
+++ b/include/plist/Integer.h
@@ -32,9 +32,13 @@ class Integer : public Node
     public :
         Integer();
         Integer(plist_t node);
+        Integer(Integer& i);
+        Integer& operator=(Integer& i);
         Integer(uint64_t i);
         virtual ~Integer();
 
+        Node* Clone();
+
         void SetValue(uint64_t i);
         uint64_t GetValue();
 };
diff --git a/include/plist/Node.h b/include/plist/Node.h
index 3be900a..a59d469 100644
--- a/include/plist/Node.h
+++ b/include/plist/Node.h
@@ -31,11 +31,11 @@ class Node
 {
     public :
         virtual ~Node();
-        Node(Node& node);
-        Node& operator=(const Node& node);
-        
+
+        virtual Node* Clone() = 0;
+
         plist_type GetType();
-        plist_t GetPlist() const;
+        plist_t GetPlist();
         
     protected:
         Node();
diff --git a/include/plist/Real.h b/include/plist/Real.h
index 8d898c7..c0095e4 100644
--- a/include/plist/Real.h
+++ b/include/plist/Real.h
@@ -32,9 +32,13 @@ class Real : public Node
     public :
         Real();
         Real(plist_t node);
+        Real(Real& d);
+        Real& operator=(Real& d);
         Real(double d);
         virtual ~Real();
 
+        Node* Clone();
+
         void SetValue(double d);
         double GetValue();
 };
diff --git a/include/plist/String.h b/include/plist/String.h
index 5314065..769c98b 100644
--- a/include/plist/String.h
+++ b/include/plist/String.h
@@ -33,10 +33,14 @@ class String : public Node
     public :
         String();
         String(plist_t node);
-        String(std::string& s);
+        String(String& s);
+        String& operator=(String& s);
+        String(const std::string& s);
         virtual ~String();
 
-        void SetValue(std::string& s);
+        Node* Clone();
+
+        void SetValue(const std::string& s);
         std::string GetValue();
 };
 
diff --git a/include/plist/Utils.h b/include/plist/Utils.h
index b499635..f3e2685 100644
--- a/include/plist/Utils.h
+++ b/include/plist/Utils.h
@@ -30,8 +30,8 @@ namespace PList
     class Utils
     {
         public:
-            static Structure* FromXml(std::string& in);
-            static Structure* FromBin(std::vector<char>& in);
+            static Structure* FromXml(const std::string& in);
+            static Structure* FromBin(const std::vector<char>& in);
 
         private:
             Utils();
diff --git a/src/Array.cpp b/src/Array.cpp
index 0505a27..b85a114 100644
--- a/src/Array.cpp
+++ b/src/Array.cpp
@@ -77,15 +77,9 @@ Array::Array(plist_t node) : Structure()
     }
 }
 
-Array::Array(Array& a)
+Array::Array(PList::Array& a) : Structure()
 {
-    plist_free(_node);
-    for (int it = 0; it < _array.size(); it++)
-    {
-        delete _array.at(it);
-    }
     _array.clear();
-    
     _node = plist_copy(a.GetPlist());
     uint32_t size = plist_array_get_size(_node);
 
@@ -125,7 +119,7 @@ Array::Array(Array& a)
     }
 }
 
-Array& Array::operator=(const Array& a)
+Array& Array::operator=(PList::Array& a)
 {
     plist_free(_node);
     for (int it = 0; it < _array.size(); it++)
@@ -175,12 +169,16 @@ Array& Array::operator=(const Array& a)
 
 Array::~Array()
 {
-    plist_free(_node);
-    for (int it = 0; it < _array.size(); it++)
-    {
-        delete _array.at(it);
-    }
-    _array.clear();
+     for (int it = 0; it < _array.size(); it++)
+     {
+        delete (_array.at(it));
+     }
+     _array.clear();
+}
+
+Node* Array::Clone()
+{
+    return new Array(*this);
 }
 
 Node* Array::operator[](unsigned int index)
@@ -192,8 +190,9 @@ void Array::Append(Node* node)
 {
     if (node)
     {
-        plist_array_append_item(_node, node->GetPlist());
-        _array.push_back(node);
+        Node* clone = node->Clone();
+        plist_array_append_item(_node, clone->GetPlist());
+        _array.push_back(clone);
     }
 }
 
@@ -201,10 +200,11 @@ void Array::Insert(Node* node, unsigned int pos)
 {
     if (node)
     {
-        plist_array_insert_item(_node, node->GetPlist(), pos);
+        Node* clone = node->Clone();
+        plist_array_insert_item(_node, clone->GetPlist(), pos);
         std::vector<Node*>::iterator it = _array.begin();
         it += pos;
-        _array.insert(it, node);
+        _array.insert(it, clone);
     }
 }
 
diff --git a/src/Boolean.cpp b/src/Boolean.cpp
index cc704c9..03d17c8 100644
--- a/src/Boolean.cpp
+++ b/src/Boolean.cpp
@@ -32,6 +32,17 @@ Boolean::Boolean(plist_t node) : Node(node)
 {
 }
 
+Boolean::Boolean(PList::Boolean& b) : Node(PLIST_BOOLEAN)
+{
+    plist_set_bool_val(_node, b.GetValue());
+}
+
+Boolean& Boolean::operator=(PList::Boolean& b)
+{
+    plist_free(_node);
+    _node = plist_copy(b.GetPlist());
+}
+
 Boolean::Boolean(bool b) : Node(PLIST_BOOLEAN)
 {
     plist_set_bool_val(_node, b);
@@ -41,6 +52,11 @@ Boolean::~Boolean()
 {
 }
 
+Node* Boolean::Clone()
+{
+    return new Boolean(*this);
+}
+
 void Boolean::SetValue(bool b)
 {
     plist_set_bool_val(_node, b);
diff --git a/src/Data.cpp b/src/Data.cpp
index 53adfa4..87a508a 100644
--- a/src/Data.cpp
+++ b/src/Data.cpp
@@ -32,7 +32,19 @@ Data::Data(plist_t node) : Node(node)
 {
 }
 
-Data::Data(std::vector<char>& buff) : Node(PLIST_DATA)
+Data::Data(PList::Data& d) : Node(PLIST_DATA)
+{
+    std::vector<char> b = d.GetValue();
+    plist_set_data_val(_node, &b[0], b.size());
+}
+
+Data& Data::operator=(PList::Data& b)
+{
+    plist_free(_node);
+    _node = plist_copy(b.GetPlist());
+}
+
+Data::Data(const std::vector<char>& buff) : Node(PLIST_DATA)
 {
     plist_set_data_val(_node, &buff[0], buff.size());
 }
@@ -41,7 +53,12 @@ Data::~Data()
 {
 }
 
-void Data::SetValue(std::vector<char>& buff)
+Node* Data::Clone()
+{
+    return new Data(*this);
+}
+
+void Data::SetValue(const std::vector<char>& buff)
 {
     plist_set_data_val(_node, &buff[0], buff.size());
 }
diff --git a/src/Date.cpp b/src/Date.cpp
index f6a6f42..18e1d27 100644
--- a/src/Date.cpp
+++ b/src/Date.cpp
@@ -32,6 +32,16 @@ Date::Date(plist_t node) : Node(node)
 {
 }
 
+Date::Date(Date& d) : Node(PLIST_DATE)
+{
+    //TODO
+}
+
+Date& Date::operator=(PList::Date& b)
+{
+    //TODO
+}
+
 Date::Date(uint64_t i) : Node(PLIST_DATE)
 {
     plist_set_date_val(_node, i, 0);
@@ -41,6 +51,11 @@ Date::~Date()
 {
 }
 
+Node* Date::Clone()
+{
+    return new Date(*this);
+}
+
 void Date::SetValue(uint64_t i)
 {
     plist_set_date_val(_node, i, 0);
diff --git a/src/Dictionary.cpp b/src/Dictionary.cpp
index 6879e33..15df0b4 100644
--- a/src/Dictionary.cpp
+++ b/src/Dictionary.cpp
@@ -85,7 +85,7 @@ Dictionary::Dictionary(plist_t node) : Structure()
     free(it);
 }
 
-Dictionary::Dictionary(Dictionary& d)
+Dictionary::Dictionary(PList::Dictionary& d) : Structure()
 {
     for (Dictionary::iterator it = _map.begin(); it != _map.end(); it++)
     {
@@ -142,7 +142,7 @@ Dictionary::Dictionary(Dictionary& d)
     free(it);
 }
 
-Dictionary& Dictionary::operator=(const Dictionary& d)
+Dictionary& Dictionary::operator=(PList::Dictionary& d)
 {
     for (Dictionary::iterator it = _map.begin(); it != _map.end(); it++)
     {
@@ -209,7 +209,12 @@ Dictionary::~Dictionary()
     _map.clear();
 }
 
-Node* Dictionary::operator[](std::string& key)
+Node* Dictionary::Clone()
+{
+    return new Dictionary(*this);
+}
+
+Node* Dictionary::operator[](const std::string& key)
 {
     return _map[key];
 }
@@ -224,13 +229,14 @@ Dictionary::iterator Dictionary::End()
     return _map.end();
 }
 
-void Dictionary::Insert(std::string& key, Node* node)
+void Dictionary::Insert(const std::string& key, Node* node)
 {
     if (node)
     {
-        plist_dict_insert_item(_node, key.c_str(), node->GetPlist());
+        Node* clone = node->Clone();
+        plist_dict_insert_item(_node, key.c_str(), clone->GetPlist());
         delete _map[key];
-        _map[key] = node;
+        _map[key] = clone;
     }
 }
 
@@ -247,7 +253,7 @@ void Dictionary::Remove(Node* node)
     }
 }
 
-void Dictionary::Remove(std::string& key)
+void Dictionary::Remove(const std::string& key)
 {
         plist_dict_remove_item(_node, key.c_str());
         delete _map[key];
diff --git a/src/Integer.cpp b/src/Integer.cpp
index 2a7429a..cf1ad33 100644
--- a/src/Integer.cpp
+++ b/src/Integer.cpp
@@ -32,6 +32,17 @@ Integer::Integer(plist_t node) : Node(node)
 {
 }
 
+Integer::Integer(PList::Integer& i) : Node(PLIST_UINT)
+{
+    plist_set_uint_val(_node, i.GetValue());
+}
+
+Integer& Integer::operator=(PList::Integer& i)
+{
+    plist_free(_node);
+    _node = plist_copy(i.GetPlist());
+}
+
 Integer::Integer(uint64_t i) : Node(PLIST_UINT)
 {
     plist_set_uint_val(_node, i);
@@ -41,6 +52,11 @@ Integer::~Integer()
 {
 }
 
+Node* Integer::Clone()
+{
+    return new Integer(*this);
+}
+
 void Integer::SetValue(uint64_t i)
 {
     plist_set_uint_val(_node, i);
diff --git a/src/Node.cpp b/src/Node.cpp
index dbcd6d6..ace1990 100644
--- a/src/Node.cpp
+++ b/src/Node.cpp
@@ -74,22 +74,6 @@ Node::~Node()
     _node = NULL;
 }
 
-Node::Node(Node& node)
-{
-    plist_free(_node);
-    _node = NULL;
-
-    _node = plist_copy(_node);
-}
-
-Node& Node::operator=(const Node& node)
-{
-    plist_free(_node);
-    _node = NULL;
-
-    _node = plist_copy(_node);
-}
-
 plist_type Node::GetType()
 {
     if (_node)
@@ -98,7 +82,7 @@ plist_type Node::GetType()
     }
 }
 
-plist_t Node::GetPlist() const
+plist_t Node::GetPlist()
 {
     return _node;
 }
diff --git a/src/Real.cpp b/src/Real.cpp
index 5416887..e527f6d 100644
--- a/src/Real.cpp
+++ b/src/Real.cpp
@@ -32,6 +32,17 @@ Real::Real(plist_t node) : Node(node)
 {
 }
 
+Real::Real(PList::Real& d) : Node(PLIST_UINT)
+{
+    plist_set_real_val(_node, d.GetValue());
+}
+
+Real& Real::operator=(PList::Real& d)
+{
+    plist_free(_node);
+    _node = plist_copy(d.GetPlist());
+}
+
 Real::Real(double d) : Node(PLIST_REAL)
 {
     plist_set_real_val(_node, d);
@@ -41,6 +52,11 @@ Real::~Real()
 {
 }
 
+Node* Real::Clone()
+{
+    return new Real(*this);
+}
+
 void Real::SetValue(double d)
 {
     plist_set_real_val(_node, d);
diff --git a/src/String.cpp b/src/String.cpp
index 7bf744c..dbc81ac 100644
--- a/src/String.cpp
+++ b/src/String.cpp
@@ -32,7 +32,18 @@ String::String(plist_t node) : Node(node)
 {
 }
 
-String::String(std::string& s) : Node(PLIST_STRING)
+String::String(PList::String& s) : Node(PLIST_UINT)
+{
+    plist_set_string_val(_node, s.GetValue().c_str());
+}
+
+String& String::operator=(PList::String& s)
+{
+    plist_free(_node);
+    _node = plist_copy(s.GetPlist());
+}
+
+String::String(const std::string& s) : Node(PLIST_STRING)
 {
     plist_set_string_val(_node, s.c_str());
 }
@@ -41,7 +52,12 @@ String::~String()
 {
 }
 
-void String::SetValue(std::string& s)
+Node* String::Clone()
+{
+    return new String(*this);
+}
+
+void String::SetValue(const std::string& s)
 {
     plist_set_string_val(_node, s.c_str());
 }
diff --git a/src/Utils.cpp b/src/Utils.cpp
index a9d2459..4e47994 100644
--- a/src/Utils.cpp
+++ b/src/Utils.cpp
@@ -54,7 +54,7 @@ static Structure* FromPlist(plist_t root)
     return ret;
 }
 
-Structure* Utils::FromXml(std::string& in)
+Structure* Utils::FromXml(const std::string& in)
 {
     plist_t root = NULL;
     plist_from_xml(in.c_str(), in.size(), &root);
@@ -62,7 +62,7 @@ Structure* Utils::FromXml(std::string& in)
     return FromPlist(root);
 }
 
-Structure* Utils::FromBin(std::vector<char>& in)
+Structure* Utils::FromBin(const std::vector<char>& in)
 {
     plist_t root = NULL;
     plist_from_bin(&in[0], in.size(), &root);