//BEGIN_LICENSE
//
// Copyright (c) 2000 The Open Group, BMC Software, Tivoli Systems, IBM
//
// 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 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.
//
//END_LICENSE
//BEGIN_HISTORY
//
// Author:
//
// $Log: String.h,v $
// Revision 1.5  2001/01/30 08:00:43  karl
// DOC++ Documentation update for header files
//
// Revision 1.4  2001/01/28 07:05:18  mike
// added instance name/reference converters
//
// Revision 1.3  2001/01/28 04:11:03  mike
// fixed qualifier resolution
//
// Revision 1.2  2001/01/24 16:16:38  karl
// Incorporate Doc++ Comments as documentation into .h files
//
// Revision 1.1.1.1  2001/01/14 19:53:15  mike
// Pegasus import
//
//
//END_HISTORY

////////////////////////////////////////////////////////////////////////////////
//
// String.h
//
//	Simple String type.
//
////////////////////////////////////////////////////////////////////////////////

/*
String Header File - Defines the CIM String Class.
*/

#ifndef Pegasus_String_h
#define Pegasus_String_h

#include <iostream>
#include <cstring>
#include <Pegasus/Common/Config.h>
#include <Pegasus/Common/Char16.h>
#include <Pegasus/Common/Array.h>

PEGASUS_NAMESPACE_BEGIN

PEGASUS_COMMON_LINKAGE void ThrowNullPointer();

PEGASUS_COMMON_LINKAGE Uint32 StrLen(const Char16* str);

inline Uint32 StrLen(const char* str)
{
    if (!str)
	ThrowNullPointer();

    return strlen(str);
}
/**
The Pegasus String C++ Class implements the CIM string type
*/
class PEGASUS_COMMON_LINKAGE String
{
public:

    /**
    String with no parameters
    */
    String();
    /**
	String something class definitions
    */
    String(const String& x);
    /// Create a CIM string
    String(const String& x, Uint32 n);
    /// Create a CIM String
    String(const Char16* x);
    /// Create a CIM String
    String(const Char16* x, Uint32 n);
    /** Create a CIM String
    */
    String(const char* x);
    /// Method
    String(const char* x, Uint32 n);

    ~String() { }
    /** Operator ATTN:
    */
    String& operator=(const String& x) { _rep = x._rep; return *this; }
    /// Operator
    String& operator=(const Char16* x) { assign(x); return *this; }
    /** method assign - ATTN:
    */
    String& assign(const String& x) { _rep = x._rep; return *this; }
    /** method assign - ATTN:
    */
    String& assign(const Char16* x);
    /** method assign - ATTN:
    */
    String& assign(const Char16* x, Uint32 n);
    /** method assign - ATTN:
    */
    String& assign(const char* x);
    /** method assign - ATTN:
    */
    String& assign(const char* x, Uint32 n);
    /** Method clear -- ATTN:
    */
    void clear() { _rep.clear(); _rep.append('\0'); }

    /**
	Method reserve - ATTN:
    */
    void reserve(Uint32 capacity) { _rep.reserve(capacity + 1); }

    /**
	Method getLength - ATTN:
    */
    Uint32 getLength() const { return _rep.getSize() - 1; }

    /**
	Method getData - ATT
    */
    const Char16* getData() const { return _rep.getData(); }

    /** Method allocateCString -  Allocates an 8 bit representation of this
    string. The user is responsible for freeing the result. If any characters
    are truncated, a TruncatedCharacter exception is thrown. This exception may
    be suppressed by passing true as the noThrow argument. */

    char* allocateCString(Uint32 extraBytes = 0, Boolean noThrow = false) const;

    /** Method appendToCString - Append the given string to a C-string. If the
    length is not Uint32(-1), then the lesser of the the length argument and the
    length of this string is truncated. Otherwise, the entire string is
    trunctated. The TruncatedCharacter exception is thrown if any characters are
    truncated.
    */
    void appendToCString(
	char* str,
	Uint32 length = Uint32(-1),
	Boolean noThrow = false) const;

    Char16& operator[](Uint32 i);

    const Char16 operator[](Uint32 i) const;
    /// method Append
    String& append(const Char16& c)
    {
	_rep.insert(_rep.getSize() - 1, c);
	return *this;
    }
    /// method append
    String& append(const Char16* str, Uint32 n);
    /// method append
    String& append(const String& str)
    {
	return append(str.getData(), str.getLength());
    }
    /// ATTN
    String& operator+=(const String& x)
    {
	return append(x);
    }
    /// ATTN
    String& operator+=(Char16 c)
    {
	return append(c);
    }
    /// ATTN
    String& operator+=(char c)
    {
	return append(Char16(c));
    }

    /// remove a string
    void remove(Uint32 pos, Uint32 size = Uint32(-1));

    /// method subString ATTN:
    String subString(Uint32 pos, Uint32 length = Uint32(-1)) const;

    /// Method find - ATTN:
    Uint32 find(Char16 c) const;

    /// Method compare - Compare two CIM strings - ATTN:
    static int compare(const Char16* s1, const Char16* s2, Uint32 n);

    /// Method compare -- Compare two CIM strings
    static int compare(const Char16* s1, const Char16* s2);

    /// ATTN
    static const String EMPTY;

private:

    static Uint32 _min(Uint32 x, Uint32 y) { return x < y ? x : y; }

    Array<Char16> _rep;
};

PEGASUS_COMMON_LINKAGE Boolean operator==(const String& x, const String& y);

PEGASUS_COMMON_LINKAGE Boolean operator==(const String& x, const char* y);

PEGASUS_COMMON_LINKAGE Boolean operator==(const char* x, const String& y);

inline Boolean operator!=(const String& x, const String& y)
{
    return !operator==(x, y);
}

PEGASUS_COMMON_LINKAGE std::ostream& operator<<(std::ostream& os, const String&
x);

inline String operator+(const String& x, const String& y)
{
    return String(x).append(y);
}

inline Boolean operator<(const String& x, const String& y)
{
    return String::compare(x.getData(), y.getData()) < 0;
}

inline Boolean operator<=(const String& x, const String& y)
{
    return String::compare(x.getData(), y.getData()) <= 0;
}

inline Boolean operator>(const String& x, const String& y)
{
    return String::compare(x.getData(), y.getData()) > 0;
}

inline Boolean operator>=(const String& x, const String& y)
{
    return String::compare(x.getData(), y.getData()) >= 0;
}

PEGASUS_NAMESPACE_END

#endif /* Pegasus_String_h */