gecko-dev/lib/libmsg/msgstrob.h

120 строки
2.9 KiB
C++

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
*
* The contents of this file are subject to the Netscape Public License
* Version 1.0 (the "NPL"); you may not use this file except in
* compliance with the NPL. You may obtain a copy of the NPL at
* http://www.mozilla.org/NPL/
*
* Software distributed under the NPL is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
* for the specific language governing rights and limitations under the
* NPL.
*
* The Initial Developer of this code under the NPL is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All Rights
* Reserved.
*/
#ifndef MSGSTROB_H
#define MSGSTROB_H
class XPStringObj
{
public:
~XPStringObj();
XPStringObj(const char *str = 0);
XPStringObj & operator =(const XPStringObj &xpStringObj);
XPStringObj & operator =(const char *str);
operator const char*() const;
XPStringObj & operator +=(const char chr);
XPStringObj & operator +=(const char *str);
XPStringObj & operator +=(XPStringObj &xpStringObj);
char operator [](int charIdx);
void SetStrPtr(char *str);
protected:
friend char * operator +(const XPStringObj &xpStringObj, const char *str);
friend char * operator +(const XPStringObj &xpStringObj1, const XPStringObj &xpStringObj2);
friend char * operator +(const char *str,const XPStringObj &xpStringObj);
char *m_strPtr;
};
inline XPStringObj::~XPStringObj()
{
if (m_strPtr)
XP_FREE(m_strPtr);
}
inline XPStringObj::XPStringObj(const char *str)
{
m_strPtr = (str) ? XP_STRDUP(str) : 0;
}
inline XPStringObj &XPStringObj::operator =(const XPStringObj &xpStringObj)
{
XP_FREEIF(m_strPtr);
m_strPtr = (xpStringObj.m_strPtr) ? XP_STRDUP(xpStringObj.m_strPtr) : 0;
return *this;
}
inline XPStringObj &XPStringObj::operator =(const char *str)
{
XP_FREEIF(m_strPtr);
m_strPtr = XP_STRDUP(str);
return *this;
}
inline XPStringObj::operator const char *(void) const
{
return m_strPtr;
}
inline XPStringObj &XPStringObj::operator +=(const char chr)
{
char str[2];
*str = chr;
str[1] = '\0';
m_strPtr = XP_AppendStr(m_strPtr, str);
return *this;
}
inline XPStringObj &XPStringObj::operator +=(const char *str)
{
m_strPtr = XP_AppendStr(m_strPtr, str);
return *this;
}
/*
* This operator is envoked by compiler generated code when
* concatenating another string on the end of this string.
*/
inline XPStringObj &XPStringObj::operator +=(XPStringObj &str)
{
m_strPtr = XP_AppendStr(m_strPtr, str.m_strPtr);
return *this;
}
inline char XPStringObj::operator [](int charIdx)
{
XP_ASSERT(m_strPtr && charIdx < (int) XP_STRLEN(m_strPtr));
return (m_strPtr) ? m_strPtr[charIdx] : 0;
}
inline void XPStringObj::SetStrPtr(char *str)
{
XP_FREEIF(m_strPtr);
m_strPtr = str;
}
#endif