Its working!!!

ZString.h

@@ -28,15 +28,9 @@ namespace coreutils {
       ///
       /// Consructor providing an empty ZString..
       ///
-      
+
       ZString();
 
-      ///
-      /// Copy constructor.
-      ///
-
-      ZString(const ZString&);
-
       ///
       ///
       ///
@@ -49,11 +43,13 @@ namespace coreutils {
 
       ZString(char *data, size_t length);
 
+      ZString(const char *data, size_t length);
+
       ///
       /// Consructor providing a copy of a ZString.
       ///
 
-      ZString(ZString &zstring);
+      ZString(const ZString &zstring);
 
       ///
       /// A friend method used to write the value of the ZString from the cursor
@@ -96,13 +92,13 @@ namespace coreutils {
       ///
       ///
 
-      std::vector<ZString> split(ZString delimiter, size_t maxSize = 0);
+      std::vector<ZString> &split(ZString &delimiter, size_t maxSize = 0);
 
       ///
       ///
       ///
 
-      std::vector<ZString> split(std::string &delimiter, size_t maxSize = 0);
+      std::vector<ZString> &split(std::string delimiter, size_t maxSize = 0);
 
       ///
       /// Use getTokenInclude with a list of character to allow the forwarding
@@ -110,19 +106,21 @@ namespace coreutils {
       /// include string is not encountered in the ZString data.  
       ///
 
-      ZString getTokenInclude(char *include);
+      ZString getTokenInclude(const char *include);
 
       ///
       ///
       ///
 
-      ZString getTokenExclude(char *exclude);
+      ZString getTokenExclude(const char *exclude);
+
+      ZString getTokenExclude(std::string exclude);
 
       ///
       /// Use the [] operator to retrieve values delimited by the split method.
       ///
 
-      ZString operator[](int index);
+      ZString &operator[](int index);
 
       ///
       /// Return true if the ZString cursor is at the end of the data.
@@ -140,13 +138,13 @@ namespace coreutils {
       ///
       ///
       
-      bool equals(ZString zstring);
+      bool equals(ZString &zstring);
       
       ///
       ///
       ///
       
-      bool equals(std::string string);
+      bool equals(std::string &string);
 
       ///
       /// Advance the cursor the length of the provided value if the value at