зеркало из https://github.com/mozilla/pjs.git
800 строки
25 KiB
C++
800 строки
25 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/*
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* The contents of this file are subject to the Netscape Public License
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* Version 1.0 (the "NPL"); you may not use this file except in
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* compliance with the NPL. You may obtain a copy of the NPL at
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* http://www.mozilla.org/NPL/
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*
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* Software distributed under the NPL is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
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* for the specific language governing rights and limitations under the
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* NPL.
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*
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* The Initial Developer of this code under the NPL is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All Rights
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* Reserved.
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*/
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/***********************************************************************
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MODULE NOTES:
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This version of the nsString class offers many improvements over the
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original version:
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1. Wide and narrow chars
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2. Allocators
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3. Much smarter autostrings
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4. Subsumable strings
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5. Memory pools and recycling
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***********************************************************************/
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#ifndef _nsString2
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#define _nsString2
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#include "prtypes.h"
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#include "nscore.h"
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#include <iostream.h>
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#include <stdio.h>
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#include "nsCRT.h"
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#include "nsStr.h"
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#include <iostream.h>
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#include <stdio.h>
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#include "nsIAtom.h"
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class nsISizeOfHandler;
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#ifdef USE_STRING2
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#define nsString2 nsString
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#define nsAutoString2 nsAutoString
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#endif
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class NS_BASE nsSubsumeStr;
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class NS_BASE nsString2 : public nsStr {
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public:
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/**
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* Default constructor. Note that we actually allocate a small buffer
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* to begin with. This is because the "philosophy" of the string class
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* was to allow developers direct access to the underlying buffer for
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* performance reasons.
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*/
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nsString2(eCharSize aCharSize=kDefaultCharSize,nsIMemoryAgent* anAgent=0);
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/**
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* This constructor accepts an isolatin string
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* @param aCString is a ptr to a 1-byte cstr
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*/
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nsString2(const char* aCString,eCharSize aCharSize=kDefaultCharSize,nsIMemoryAgent* anAgent=0);
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/**
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* This constructor accepts a unichar string
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* @param aCString is a ptr to a 2-byte cstr
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*/
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nsString2(const PRUnichar* aString,eCharSize aCharSize=kDefaultCharSize,nsIMemoryAgent* anAgent=0);
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/**
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* This is a copy constructor that accepts an nsStr
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* @param reference to another nsString2
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*/
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nsString2(const nsStr&,eCharSize aCharSize=kDefaultCharSize,nsIMemoryAgent* anAgent=0);
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/**
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* This is our copy constructor
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* @param reference to another nsString2
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*/
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nsString2(const nsString2& aString);
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/**
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* This constructor takes a subsumestr
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* @param reference to subsumestr
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*/
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nsString2(nsSubsumeStr& aSubsumeStr);
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/**
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* Destructor
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*
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*/
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virtual ~nsString2();
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/**
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* Retrieve the length of this string
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* @return string length
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*/
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inline PRInt32 Length() const { return (PRInt32)mLength; }
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/**
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* Retrieve the size of this string
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* @return string length
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*/
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virtual void SizeOf(nsISizeOfHandler* aHandler) const;
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/**
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* Call this method if you want to force a different string capacity
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* @update gess7/30/98
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* @param aLength -- contains new length for mStr
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* @return
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*/
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void SetLength(PRUint32 aLength) {
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SetCapacity(aLength);
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}
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/**
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* Sets the new length of the string.
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* @param aLength is new string length.
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* @return nada
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*/
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void SetCapacity(PRUint32 aLength);
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/**
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* This method truncates this string to given length.
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*
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* @param anIndex -- new length of string
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* @return nada
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*/
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void Truncate(PRInt32 anIndex=0);
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/**
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* Determine whether or not the characters in this
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* string are in sorted order.
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*
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* @return TRUE if ordered.
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*/
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PRBool IsOrdered(void) const;
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/**
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* Determine whether or not the characters in this
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* string are in store as 1 or 2 byte (unicode) strings.
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*
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* @return TRUE if ordered.
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*/
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PRBool IsUnicode(void) const {
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PRBool result=PRBool(mCharSize==eTwoByte);
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return result;
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}
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/**
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* Determine whether or not this string has a length of 0
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*
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* @return TRUE if empty.
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*/
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PRBool IsEmpty(void) const {
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return PRBool(0==mLength);
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}
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/**********************************************************************
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Accessor methods...
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*********************************************************************/
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const char* GetBuffer(void) const;
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const PRUnichar* GetUnicode(void) const;
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/**
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* Get nth character.
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*/
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PRUnichar operator[](PRUint32 anIndex) const;
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PRUnichar CharAt(PRUint32 anIndex) const;
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PRUnichar First(void) const;
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PRUnichar Last(void) const;
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PRBool SetCharAt(PRUnichar aChar,PRUint32 anIndex);
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/**********************************************************************
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String creation methods...
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*********************************************************************/
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/**
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* Create a new string by appending given string to this
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* @param aString -- 2nd string to be appended
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* @return new string
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*/
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nsSubsumeStr operator+(const nsStr& aString);
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/**
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* Create a new string by appending given string to this
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* @param aString -- 2nd string to be appended
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* @return new string
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*/
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nsSubsumeStr operator+(const nsString2& aString);
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/**
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* create a new string by adding this to the given buffer.
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* @param aCString is a ptr to cstring to be added to this
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* @return newly created string
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*/
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nsSubsumeStr operator+(const char* aCString);
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/**
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* create a new string by adding this to the given wide buffer.
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* @param aString is a ptr to UC-string to be added to this
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* @return newly created string
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*/
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nsSubsumeStr operator+(const PRUnichar* aString);
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/**
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* create a new string by adding this to the given char.
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* @param aChar is a char to be added to this
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* @return newly created string
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*/
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nsSubsumeStr operator+(char aChar);
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/**
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* create a new string by adding this to the given char.
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* @param aChar is a unichar to be added to this
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* @return newly created string
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*/
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nsSubsumeStr operator+(PRUnichar aChar);
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/**********************************************************************
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Lexomorphic transforms...
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*********************************************************************/
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/**
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* Converts all chars in given string to UCS2
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* which ensure that the lower 256 chars are correct.
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*/
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void ToUCS2(PRUint32 aStartOffset);
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/**
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* Converts chars in this to lowercase
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* @update gess 7/27/98
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*/
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void ToLowerCase();
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/**
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* Converts chars in this to lowercase, and
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* stores them in aOut
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* @update gess 7/27/98
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* @param aOut is a string to contain result
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*/
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void ToLowerCase(nsString2& aString) const;
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/**
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* Converts chars in this to uppercase
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* @update gess 7/27/98
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*/
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void ToUpperCase();
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/**
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* Converts chars in this to lowercase, and
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* stores them in a given output string
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* @update gess 7/27/98
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* @param aOut is a string to contain result
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*/
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void ToUpperCase(nsString2& aString) const;
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/**
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* This method is used to remove all occurances of the
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* characters found in aSet from this string.
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*
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* @param aSet -- characters to be cut from this
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* @return *this
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*/
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nsString2& StripChars(const char* aSet);
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/**
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* This method strips whitespace throughout the string
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*
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* @return this
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*/
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nsString2& StripWhitespace();
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/**
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* swaps occurence of 1 string for another
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*
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* @return this
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*/
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nsString2& ReplaceChar(PRUnichar aSourceChar,PRUnichar aDestChar);
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/**
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* This method trims characters found in aTrimSet from
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* either end of the underlying string.
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*
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* @param aTrimSet -- contains chars to be trimmed from
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* both ends
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* @return this
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*/
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nsString2& Trim(const char* aSet,PRBool aEliminateLeading=PR_TRUE,PRBool aEliminateTrailing=PR_TRUE);
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/**
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* This method strips whitespace from string.
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* You can control whether whitespace is yanked from
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* start and end of string as well.
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*
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* @param aEliminateLeading controls stripping of leading ws
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* @param aEliminateTrailing controls stripping of trailing ws
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* @return this
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*/
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nsString2& CompressSet(const char* aSet, char aChar, PRBool aEliminateLeading=PR_TRUE,PRBool aEliminateTrailing=PR_TRUE);
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/**
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* This method strips whitespace from string.
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* You can control whether whitespace is yanked from
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* start and end of string as well.
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*
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* @param aEliminateLeading controls stripping of leading ws
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* @param aEliminateTrailing controls stripping of trailing ws
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* @return this
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*/
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nsString2& CompressWhitespace( PRBool aEliminateLeading=PR_TRUE,PRBool aEliminateTrailing=PR_TRUE);
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/**********************************************************************
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string conversion methods...
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*********************************************************************/
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/**
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* This method constructs a new nsString2 on the stack that is a copy
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* of this string.
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*
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*/
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nsString2* ToNewString() const;
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/**
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* Creates an ISOLatin1 clone of this string
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* @return ptr to new isolatin1 string
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*/
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char* ToNewCString() const;
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/**
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* Creates a unicode clone of this string
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* @return ptr to new unicode string
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*/
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PRUnichar* ToNewUnicode() const;
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/**
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* Copies data from internal buffer onto given char* buffer
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* @param aBuf is the buffer where data is stored
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* @param aBuflength is the max # of chars to move to buffer
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* @return ptr to given buffer
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*/
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char* ToCString(char* aBuf,PRUint32 aBufLength) const;
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/**
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* Perform string to float conversion.
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* @param aErrorCode will contain error if one occurs
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* @return float rep of string value
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*/
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float ToFloat(PRInt32* aErrorCode) const;
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/**
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* Perform string to int conversion.
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* @param aErrorCode will contain error if one occurs
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* @return int rep of string value
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*/
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PRInt32 ToInteger(PRInt32* aErrorCode,PRUint32 aRadix=10) const;
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/**********************************************************************
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String manipulation methods...
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*********************************************************************/
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/**
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* Functionally equivalent to assign or operator=
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*
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*/
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nsString2& SetString(const char* aString,PRInt32 aLength=-1) {return Assign(aString,aLength);}
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nsString2& SetString(const PRUnichar* aString,PRInt32 aLength=-1) {return Assign(aString,aLength);}
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nsString2& SetString(const nsString2& aString,PRInt32 aLength=-1) {return Assign(aString,aLength);}
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/**
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* assign given string to this string
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* @param aStr: buffer to be assigned to this
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* @param alength is the length of the given str (or -1)
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if you want me to determine its length
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* @return this
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*/
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nsString2& Assign(const nsString2& aString,PRInt32 aCount=-1);
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nsString2& Assign(const nsStr& aString,PRInt32 aCount=-1);
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nsString2& Assign(const char* aString,PRInt32 aCount=-1);
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nsString2& Assign(const PRUnichar* aString,PRInt32 aCount=-1);
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nsString2& Assign(char aChar);
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nsString2& Assign(PRUnichar aChar);
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/**
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* here come a bunch of assignment operators...
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* @param aString: string to be added to this
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* @return this
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*/
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nsString2& operator=(const nsString2& aString) {return Assign(aString);}
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nsString2& operator=(const nsStr& aString) {return Assign(aString);}
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nsString2& operator=(char aChar) {return Assign(aChar);}
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nsString2& operator=(PRUnichar aChar) {return Assign(aChar);}
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nsString2& operator=(const char* aCString) {return Assign(aCString);}
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nsString2& operator=(const PRUnichar* aString) {return Assign(aString);}
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nsString2& operator=(nsSubsumeStr& aSubsumeString);
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/**
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* Here's a bunch of append mehtods for varying types...
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* @param aString : string to be appended to this
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* @return this
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*/
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nsString2& operator+=(const nsStr& aString){return Append(aString,aString.mLength);}
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nsString2& operator+=(const nsString2& aString){return Append(aString,aString.mLength);}
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nsString2& operator+=(const char* aCString) {return Append(aCString);}
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//nsString2& operator+=(char aChar){return Append(aChar);}
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nsString2& operator+=(const PRUnichar* aUCString) {return Append(aUCString);}
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nsString2& operator+=(PRUnichar aChar){return Append(aChar);}
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/*
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* Appends n characters from given string to this,
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* This version computes the length of your given string
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*
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* @param aString is the source to be appended to this
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* @return number of chars copied
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*/
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nsString2& Append(const nsStr& aString) {return Append(aString,aString.mLength);}
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nsString2& Append(const nsString2& aString) {return Append(aString,aString.mLength);}
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/*
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* Appends n characters from given string to this,
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*
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* @param aString is the source to be appended to this
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* @param aCount -- number of chars to copy
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* @return number of chars copied
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*/
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nsString2& Append(const nsStr& aString,PRInt32 aCount);
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nsString2& Append(const nsString2& aString,PRInt32 aCount);
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nsString2& Append(const char* aString,PRInt32 aCount=-1);
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nsString2& Append(const PRUnichar* aString,PRInt32 aCount=-1);
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nsString2& Append(char aChar);
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nsString2& Append(PRUnichar aChar);
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nsString2& Append(PRInt32 aInteger,PRInt32 aRadix=10); //radix=8,10 or 16
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nsString2& Append(float aFloat);
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/*
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* Copies n characters from this string to given string,
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* starting at the leftmost offset.
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*
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*
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* @param aCopy -- Receiving string
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* @param aCount -- number of chars to copy
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* @return number of chars copied
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*/
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PRUint32 Left(nsString2& aCopy,PRInt32 aCount) const;
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/*
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* Copies n characters from this string to given string,
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* starting at the given offset.
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*
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*
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* @param aCopy -- Receiving string
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* @param aCount -- number of chars to copy
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* @param anOffset -- position where copying begins
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* @return number of chars copied
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*/
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PRUint32 Mid(nsString2& aCopy,PRUint32 anOffset,PRInt32 aCount) const;
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/*
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* Copies n characters from this string to given string,
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* starting at rightmost char.
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*
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*
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* @param aCopy -- Receiving string
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* @param aCount -- number of chars to copy
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* @return number of chars copied
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*/
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PRUint32 Right(nsString2& aCopy,PRInt32 aCount) const;
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/*
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* This method inserts n chars from given string into this
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* string at str[anOffset].
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*
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* @param aCopy -- String to be inserted into this
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* @param anOffset -- insertion position within this str
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* @param aCount -- number of chars to be copied from aCopy
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* @return number of chars inserted into this.
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*/
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nsString2& Insert(const nsString2& aCopy,PRUint32 anOffset,PRInt32 aCount=-1);
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/**
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* Insert a given string into this string at
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* a specified offset.
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*
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* @param aString* to be inserted into this string
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* @param anOffset is insert pos in str
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* @return the number of chars inserted into this string
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*/
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nsString2& Insert(const char* aChar,PRUint32 anOffset,PRInt32 aCount=-1);
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nsString2& Insert(const PRUnichar* aChar,PRUint32 anOffset,PRInt32 aCount=-1);
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/**
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* Insert a single char into this string at
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* a specified offset.
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*
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* @param character to be inserted into this string
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* @param anOffset is insert pos in str
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* @return the number of chars inserted into this string
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*/
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//nsString2& Insert(char aChar,PRUint32 anOffset);
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nsString2& Insert(PRUnichar aChar,PRUint32 anOffset);
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/*
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* This method is used to cut characters in this string
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* starting at anOffset, continuing for aCount chars.
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*
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* @param anOffset -- start pos for cut operation
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* @param aCount -- number of chars to be cut
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* @return *this
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*/
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nsString2& Cut(PRUint32 anOffset,PRInt32 aCount);
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/**********************************************************************
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Searching methods...
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*********************************************************************/
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/**
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* Search for given character within this string.
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* This method does so by using a binary search,
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* so your string HAD BETTER BE ORDERED!
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*
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* @param aChar is the unicode char to be found
|
|
* @return offset in string, or -1 (kNotFound)
|
|
*/
|
|
PRInt32 BinarySearch(PRUnichar aChar) const;
|
|
|
|
/**
|
|
* Search for given substring within this string
|
|
*
|
|
* @param aString is substring to be sought in this
|
|
* @return offset in string, or -1 (kNotFound)
|
|
*/
|
|
PRInt32 Find(const nsString2& aString,PRBool aIgnoreCase=PR_FALSE) const;
|
|
PRInt32 Find(const nsStr& aString,PRBool aIgnoreCase=PR_FALSE) const;
|
|
PRInt32 Find(const char* aString,PRBool aIgnoreCase=PR_FALSE) const;
|
|
PRInt32 Find(const PRUnichar* aString,PRBool aIgnoreCase=PR_FALSE) const;
|
|
PRInt32 Find(PRUnichar aChar,PRUint32 offset=0,PRBool aIgnoreCase=PR_FALSE) const;
|
|
|
|
/**
|
|
* This method searches this string for the first character
|
|
* found in the given string
|
|
* @param aString contains set of chars to be found
|
|
* @param anOffset tells us where to start searching in this
|
|
* @return -1 if not found, else the offset in this
|
|
*/
|
|
PRInt32 FindCharInSet(const char* aString,PRUint32 anOffset=0) const;
|
|
PRInt32 FindCharInSet(const PRUnichar* aString,PRUint32 anOffset=0) const;
|
|
PRInt32 FindCharInSet(const nsString2& aString,PRUint32 anOffset=0) const;
|
|
|
|
/**
|
|
* This method searches this string for the last character
|
|
* found in the given string
|
|
* @param aString contains set of chars to be found
|
|
* @param anOffset tells us where to start searching in this
|
|
* @return -1 if not found, else the offset in this
|
|
*/
|
|
PRInt32 RFindCharInSet(const char* aString,PRUint32 anOffset=0) const;
|
|
PRInt32 RFindCharInSet(const PRUnichar* aString,PRUint32 anOffset=0) const;
|
|
PRInt32 RFindCharInSet(const nsString2& aString,PRUint32 anOffset=0) const;
|
|
|
|
|
|
/**
|
|
* This methods scans the string backwards, looking for the given string
|
|
* @param aString is substring to be sought in this
|
|
* @param aIgnoreCase tells us whether or not to do caseless compare
|
|
* @return offset in string, or -1 (kNotFound)
|
|
*/
|
|
PRInt32 RFind(const char* aCString,PRBool aIgnoreCase=PR_FALSE) const;
|
|
PRInt32 RFind(const nsString2& aString,PRBool aIgnoreCase=PR_FALSE) const;
|
|
PRInt32 RFind(const nsStr& aString,PRBool aIgnoreCase=PR_FALSE) const;
|
|
PRInt32 RFind(const PRUnichar* aString,PRBool aIgnoreCase=PR_FALSE) const;
|
|
PRInt32 RFind(PRUnichar aChar,PRUint32 offset=0,PRBool aIgnoreCase=PR_FALSE) const;
|
|
|
|
/**********************************************************************
|
|
Comparison methods...
|
|
*********************************************************************/
|
|
|
|
/**
|
|
* Compares a given string type to this string.
|
|
* @update gess 7/27/98
|
|
* @param S is the string to be compared
|
|
* @param aIgnoreCase tells us how to treat case
|
|
* @return -1,0,1
|
|
*/
|
|
virtual PRInt32 Compare(const nsString2& aString,PRBool aIgnoreCase=PR_FALSE,PRInt32 aLength=-1) const;
|
|
virtual PRInt32 Compare(const nsStr &aString,PRBool aIgnoreCase=PR_FALSE,PRInt32 aLength=-1) const;
|
|
virtual PRInt32 Compare(const char* aString,PRBool aIgnoreCase=PR_FALSE,PRInt32 aLength=-1) const;
|
|
virtual PRInt32 Compare(const PRUnichar* aString,PRBool aIgnoreCase=PR_FALSE,PRInt32 aLength=-1) const;
|
|
|
|
/**
|
|
* These methods compare a given string type to this one
|
|
* @param aString is the string to be compared to this
|
|
* @return TRUE or FALSE
|
|
*/
|
|
PRBool operator==(const nsString2 &aString) const;
|
|
PRBool operator==(const nsStr &aString) const;
|
|
PRBool operator==(const char *aString) const;
|
|
PRBool operator==(const PRUnichar* aString) const;
|
|
|
|
/**
|
|
* These methods perform a !compare of a given string type to this
|
|
* @param aString is the string to be compared to this
|
|
* @return TRUE
|
|
*/
|
|
PRBool operator!=(const nsString2 &aString) const;
|
|
PRBool operator!=(const nsStr &aString) const;
|
|
PRBool operator!=(const char* aString) const;
|
|
PRBool operator!=(const PRUnichar* aString) const;
|
|
|
|
/**
|
|
* These methods test if a given string is < than this
|
|
* @param aString is the string to be compared to this
|
|
* @return TRUE or FALSE
|
|
*/
|
|
PRBool operator<(const nsString2 &aString) const;
|
|
PRBool operator<(const nsStr &aString) const;
|
|
PRBool operator<(const char* aString) const;
|
|
PRBool operator<(const PRUnichar* aString) const;
|
|
|
|
/**
|
|
* These methods test if a given string is > than this
|
|
* @param aString is the string to be compared to this
|
|
* @return TRUE or FALSE
|
|
*/
|
|
PRBool operator>(const nsString2 &aString) const;
|
|
PRBool operator>(const nsStr &S) const;
|
|
PRBool operator>(const char* aString) const;
|
|
PRBool operator>(const PRUnichar* aString) const;
|
|
|
|
/**
|
|
* These methods test if a given string is <= than this
|
|
* @param aString is the string to be compared to this
|
|
* @return TRUE or FALSE
|
|
*/
|
|
PRBool operator<=(const nsString2 &aString) const;
|
|
PRBool operator<=(const nsStr &S) const;
|
|
PRBool operator<=(const char* aString) const;
|
|
PRBool operator<=(const PRUnichar* aString) const;
|
|
|
|
/**
|
|
* These methods test if a given string is >= than this
|
|
* @param aString is the string to be compared to this
|
|
* @return TRUE or FALSE
|
|
*/
|
|
PRBool operator>=(const nsString2 &aString) const;
|
|
PRBool operator>=(const nsStr &S) const;
|
|
PRBool operator>=(const char* aString) const;
|
|
PRBool operator>=(const PRUnichar* aString) const;
|
|
|
|
/**
|
|
* Compare this to given string; note that we compare full strings here.
|
|
* The optional length argument just lets us know how long the given string is.
|
|
* If you provide a length, it is compared to length of this string as an
|
|
* optimization.
|
|
*
|
|
* @param aString -- the string to compare to this
|
|
* @param aLength -- optional length of given string.
|
|
* @return TRUE if equal
|
|
*/
|
|
PRBool Equals(const nsString2 &aString,PRBool aIgnoreCase=PR_FALSE) const;
|
|
PRBool Equals(const nsStr& aString,PRBool aIgnoreCase=PR_FALSE) const;
|
|
PRBool Equals(const char* aString,PRBool aIgnoreCase=PR_FALSE) const;
|
|
PRBool Equals(const char* aString,PRUint32 aCount,PRBool aIgnoreCase) const;
|
|
PRBool Equals(const PRUnichar* aString,PRBool aIgnoreCase=PR_FALSE) const;
|
|
PRBool Equals(const PRUnichar* aString,PRUint32 aCount,PRBool aIgnoreCase) const;
|
|
PRBool Equals(const nsIAtom* anAtom,PRBool aIgnoreCase) const;
|
|
PRBool Equals(const PRUnichar* s1, const PRUnichar* s2,PRBool aIgnoreCase=PR_FALSE) const;
|
|
|
|
PRBool EqualsIgnoreCase(const nsString2& aString) const;
|
|
PRBool EqualsIgnoreCase(const char* aString,PRInt32 aLength=-1) const;
|
|
PRBool EqualsIgnoreCase(const nsIAtom *aAtom) const;
|
|
PRBool EqualsIgnoreCase(const PRUnichar* s1, const PRUnichar* s2) const;
|
|
|
|
|
|
/**
|
|
* Determine if given char is a valid space character
|
|
*
|
|
* @param aChar is character to be tested
|
|
* @return TRUE if is valid space char
|
|
*/
|
|
static PRBool IsSpace(PRUnichar ch);
|
|
|
|
/**
|
|
* Determine if given char in valid alpha range
|
|
*
|
|
* @param aChar is character to be tested
|
|
* @return TRUE if in alpha range
|
|
*/
|
|
static PRBool IsAlpha(PRUnichar ch);
|
|
|
|
/**
|
|
* Determine if given char is valid digit
|
|
*
|
|
* @param aChar is character to be tested
|
|
* @return TRUE if char is a valid digit
|
|
*/
|
|
static PRBool IsDigit(PRUnichar ch);
|
|
|
|
static void Recycle(nsString2* aString);
|
|
static nsString2* CreateString(eCharSize aCharSize=eTwoByte);
|
|
|
|
virtual void DebugDump(ostream& aStream) const;
|
|
|
|
nsIMemoryAgent* mAgent;
|
|
|
|
};
|
|
|
|
extern NS_BASE int fputs(const nsString2& aString, FILE* out);
|
|
ostream& operator<<(ostream& os,nsString2& aString);
|
|
|
|
|
|
/**************************************************************
|
|
Here comes the AutoString class which uses internal memory
|
|
(typically found on the stack) for its default buffer.
|
|
If the buffer needs to grow, it gets reallocated on the heap.
|
|
**************************************************************/
|
|
|
|
class NS_BASE nsAutoString2 : public nsString2 {
|
|
public:
|
|
|
|
nsAutoString2(eCharSize aCharSize=kDefaultCharSize);
|
|
nsAutoString2(nsStr& anExtBuffer,const char* aCString);
|
|
|
|
|
|
nsAutoString2(const char* aCString,eCharSize aCharSize=kDefaultCharSize);
|
|
nsAutoString2(char* aCString,PRUint32 aLength,eCharSize aCharSize=kDefaultCharSize,PRBool assumeOwnership=PR_FALSE);
|
|
nsAutoString2(const PRUnichar* aString,eCharSize aCharSize=kDefaultCharSize);
|
|
nsAutoString2(PRUnichar* aString,PRUint32 aLength,eCharSize aCharSize=kDefaultCharSize,PRBool assumeOwnership=PR_FALSE);
|
|
|
|
nsAutoString2(const nsStr& aString,eCharSize aCharSize=kDefaultCharSize);
|
|
nsAutoString2(const nsString2& aString,eCharSize aCharSize=kDefaultCharSize);
|
|
nsAutoString2(const nsAutoString2& aString,eCharSize aCharSize=kDefaultCharSize);
|
|
nsAutoString2(nsSubsumeStr& aSubsumeStr);
|
|
nsAutoString2(PRUnichar aChar,eCharSize aCharSize=kDefaultCharSize);
|
|
virtual ~nsAutoString2();
|
|
|
|
nsAutoString2& operator=(const nsString2& aString) {nsString2::operator=(aString); return *this;}
|
|
nsAutoString2& operator=(const nsStr& aString) {nsString2::Assign(aString); return *this;}
|
|
nsAutoString2& operator=(const nsAutoString2& aString) {nsString2::operator=(aString); return *this;}
|
|
nsAutoString2& operator=(const char* aCString) {nsString2::operator=(aCString); return *this;}
|
|
nsAutoString2& operator=(char aChar) {nsString2::operator=(aChar); return *this;}
|
|
nsAutoString2& operator=(const PRUnichar* aBuffer) {nsString2::operator=(aBuffer); return *this;}
|
|
nsAutoString2& operator=(PRUnichar aChar) {nsString2::operator=(aChar); return *this;}
|
|
|
|
/**
|
|
* Retrieve the size of this string
|
|
* @return string length
|
|
*/
|
|
virtual void SizeOf(nsISizeOfHandler* aHandler) const;
|
|
|
|
char mBuffer[32];
|
|
};
|
|
|
|
|
|
/***************************************************************
|
|
The subsumestr class is very unusual.
|
|
It differs from a normal string in that it doesn't use normal
|
|
copy semantics when another string is assign to this.
|
|
Instead, it "steals" the contents of the source string.
|
|
|
|
This is very handy for returning nsString classes as part of
|
|
an operator+(...) for example, in that it cuts down the number
|
|
of copy operations that must occur.
|
|
|
|
You should probably not use this class unless you really know
|
|
what you're doing.
|
|
***************************************************************/
|
|
class NS_BASE nsSubsumeStr : public nsString2 {
|
|
public:
|
|
nsSubsumeStr(nsString2& aString);
|
|
nsSubsumeStr(nsStr& aString);
|
|
nsSubsumeStr(const PRUnichar* aString);
|
|
nsSubsumeStr(const char* aString);
|
|
};
|
|
|
|
#endif
|
|
|
|
|