зеркало из https://github.com/mozilla/pjs.git
614 строки
21 KiB
C++
614 строки
21 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: NPL 1.1/GPL 2.0/LGPL 2.1
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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 1.1 (the "License"); you may not use this file except in
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* compliance with the License. You may obtain a copy of the License at
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* http://www.mozilla.org/NPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is mozilla.org code.
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*
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* The Initial Developer of the Original Code is
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* Netscape Communications Corporation.
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* Portions created by the Initial Developer are Copyright (C) 1998
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Rick Gessner <rickg@netscape.com> (original author)
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* Scott Collins <scc@mozilla.org>
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the NPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the NPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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/* nsString2.h --- rickg's original strings of 2-byte chars, |nsString| and |nsAutoString|;
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these classes will be replaced by the new shared-buffer string (see bug #53065)
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*/
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#ifndef _nsString_
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#define _nsString_
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/***********************************************************************
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MODULE NOTES:
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See nsStr.h for a more general description of string classes.
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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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***********************************************************************/
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#include "prtypes.h"
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#include "nscore.h"
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#include <stdio.h>
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#include "nsString.h"
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#include "nsIAtom.h"
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#include "nsStr.h"
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#include "nsCRT.h"
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#ifndef nsAFlatString_h___
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#include "nsAFlatString.h"
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#endif
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#include "nsXPIDLString.h"
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#ifdef STANDALONE_MI_STRING_TESTS
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class nsAFlatString { public: virtual ~nsAString() { } };
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#endif
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class nsISizeOfHandler;
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class NS_COM nsString :
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public nsAFlatString,
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public nsStr {
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protected:
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virtual const nsBufferHandle<PRUnichar>* GetFlatBufferHandle() const;
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virtual const PRUnichar* GetReadableFragment( nsReadableFragment<PRUnichar>&, nsFragmentRequest, PRUint32 ) const;
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virtual PRUnichar* GetWritableFragment( nsWritableFragment<PRUnichar>&, nsFragmentRequest, PRUint32 );
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public:
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virtual const PRUnichar* get() const;
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public:
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/**
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* Default constructor.
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*/
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nsString();
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/**
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* This is our copy constructor
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* @param reference to another nsString
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*/
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nsString(const nsString& aString);
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explicit nsString(const nsAString&);
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explicit nsString(const PRUnichar*);
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nsString(const PRUnichar*, PRInt32);
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/**
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* Destructor
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*
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*/
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virtual ~nsString();
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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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virtual PRUint32 Length() const { return 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, PRUint32* aResult) const;
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/**
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* Call this method if you want to force a different string length
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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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/**
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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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* 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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Getters/Setters...
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*********************************************************************/
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/**
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* Retrieve const ptr to internal buffer; DO NOT TRY TO FREE IT!
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*/
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const char* GetBuffer(void) const;
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/**
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* Set nth character.
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*/
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PRBool SetCharAt(PRUnichar aChar,PRUint32 anIndex);
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/**********************************************************************
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Lexomorphic transforms...
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*********************************************************************/
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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(nsString& 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(nsString& 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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void StripChars( const char* aSet );
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void StripChar( PRUnichar aChar, PRInt32 anOffset=0 );
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void StripChar( char aChar, PRInt32 anOffset=0 ) { StripChar((PRUnichar) (unsigned char)aChar,anOffset); }
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void StripChar( PRInt32 anInt, PRInt32 anOffset=0 ) { StripChar((PRUnichar)anInt,anOffset); }
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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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void 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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void ReplaceChar( PRUnichar anOldChar, PRUnichar aNewChar );
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void ReplaceChar( const char* aSet, PRUnichar aNewChar );
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void ReplaceSubstring( const nsString& aTarget, const nsString& aNewValue );
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void ReplaceSubstring( const PRUnichar* aTarget, const PRUnichar* aNewValue );
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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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* @param aEliminateLeading
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* @param aEliminateTrailing
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* @param aIgnoreQuotes
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* @return this
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*/
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void Trim(const char* aSet,PRBool aEliminateLeading=PR_TRUE,PRBool aEliminateTrailing=PR_TRUE,PRBool aIgnoreQuotes=PR_FALSE);
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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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void CompressSet(const char* aSet, PRUnichar 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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void 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 nsString is a clone of this string.
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*
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*/
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nsString* ToNewString() const;
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/**
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* Copies data from internal buffer onto given char* buffer
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* NOTE: This only copies as many chars as will fit in given buffer (clips)
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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,PRUint32 anOffset=0) 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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* @param aRadix tells us which radix to assume; kAutoDetect tells us to determine the radix for you.
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* @return int rep of string value, and possible (out) error code
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*/
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PRInt32 ToInteger(PRInt32* aErrorCode,PRUint32 aRadix=kRadix10) const;
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/**********************************************************************
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String manipulation methods...
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*********************************************************************/
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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 aCount is the length of the given str (or -1) if you want me to determine its length
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* NOTE: IFF you pass -1 as aCount, then your buffer must be null terminated.
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* @return this
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*/
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nsString& operator=( const nsString& aString ) { Assign(aString); return *this; }
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nsString& operator=( const nsAString& aReadable ) { Assign(aReadable); return *this; }
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//nsString& operator=( const nsPromiseReadable<PRUnichar>& aReadable ) { Assign(aReadable); return *this; }
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nsString& operator=( const PRUnichar* aPtr ) { Assign(aPtr); return *this; }
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nsString& operator=( PRUnichar aChar ) { Assign(aChar); return *this; }
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void AssignWithConversion(char);
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void AssignWithConversion(const char*);
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void AssignWithConversion(const char*, PRInt32);
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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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void AppendInt(PRInt32, PRInt32=10); //radix=8,10 or 16
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void AppendFloat(double);
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void AppendWithConversion(const char*, PRInt32=-1);
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void AppendWithConversion(char);
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virtual void do_AppendFromElement( PRUnichar );
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//void InsertWithConversion(char);
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void InsertWithConversion(const char*, PRUint32, PRInt32=-1);
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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 substring within this string
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*
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* @param aString is substring to be sought in this
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* @param aIgnoreCase selects case sensitivity
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* @param anOffset tells us where in this strig to start searching
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* @param aCount tells us how many iterations to make starting at the given offset
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* @return offset in string, or -1 (kNotFound)
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*/
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PRInt32 Find(const nsString& aString,PRBool aIgnoreCase=PR_FALSE,PRInt32 anOffset=0,PRInt32 aCount=-1) const;
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PRInt32 Find(const nsStr& aString,PRBool aIgnoreCase=PR_FALSE,PRInt32 anOffset=0,PRInt32 aCount=-1) const;
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PRInt32 Find(const char* aString,PRBool aIgnoreCase=PR_FALSE,PRInt32 anOffset=0,PRInt32 aCount=-1) const;
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PRInt32 Find(const PRUnichar* aString,PRBool aIgnoreCase=PR_FALSE,PRInt32 anOffset=0,PRInt32 aCount=-1) const;
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/**
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* Search for given char within this string
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*
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* @param aString is substring to be sought in this
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* @param anOffset tells us where in this strig to start searching
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* @param aIgnoreCase selects case sensitivity
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* @param aCount tells us how many iterations to make starting at the given offset
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* @return find pos in string, or -1 (kNotFound)
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*/
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//PRInt32 Find(PRUnichar aChar,PRInt32 offset=-1,PRBool aIgnoreCase=PR_FALSE) const;
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PRInt32 FindChar(PRUnichar aChar,PRBool aIgnoreCase=PR_FALSE,PRInt32 anOffset=0,PRInt32 aCount=-1) const;
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/**
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* This method searches this string for the first character
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* found in the given charset
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* @param aString contains set of chars to be found
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* @param anOffset tells us where to start searching in this
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* @return -1 if not found, else the offset in this
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*/
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PRInt32 FindCharInSet(const char* aString,PRInt32 anOffset=0) const;
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PRInt32 FindCharInSet(const PRUnichar* aString,PRInt32 anOffset=0) const;
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PRInt32 FindCharInSet(const nsStr& aString,PRInt32 anOffset=0) const;
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/**
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* This methods scans the string backwards, looking for the given string
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* @param aString is substring to be sought in this
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* @param aIgnoreCase tells us whether or not to do caseless compare
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* @param anOffset tells us where in this strig to start searching (counting from left)
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* @param aCount tells us how many iterations to make starting at the given offset
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* @return offset in string, or -1 (kNotFound)
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*/
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PRInt32 RFind(const char* aCString,PRBool aIgnoreCase=PR_FALSE,PRInt32 anOffset=-1,PRInt32 aCount=-1) const;
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PRInt32 RFind(const nsString& aString,PRBool aIgnoreCase=PR_FALSE,PRInt32 anOffset=-1,PRInt32 aCount=-1) const;
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PRInt32 RFind(const nsStr& aString,PRBool aIgnoreCase=PR_FALSE,PRInt32 anOffset=-1,PRInt32 aCount=-1) const;
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PRInt32 RFind(const PRUnichar* aString,PRBool aIgnoreCase=PR_FALSE,PRInt32 anOffset=-1,PRInt32 aCount=-1) const;
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/**
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* Search for given char within this string
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*
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* @param aString is substring to be sought in this
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* @param anOffset tells us where in this strig to start searching (counting from left)
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* @param aIgnoreCase selects case sensitivity
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* @param aCount tells us how many iterations to make starting at the given offset
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* @return find pos in string, or -1 (kNotFound)
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*/
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//PRInt32 RFind(PRUnichar aChar,PRInt32 offset=-1,PRBool aIgnoreCase=PR_FALSE) const;
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PRInt32 RFindChar(PRUnichar aChar,PRBool aIgnoreCase=PR_FALSE,PRInt32 anOffset=-1,PRInt32 aCount=-1) const;
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/**
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* This method searches this string for the last character
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* found in the given string
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* @param aString contains set of chars to be found
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* @param anOffset tells us where in this strig to start searching (counting from left)
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* @return -1 if not found, else the offset in this
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*/
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PRInt32 RFindCharInSet(const char* aString,PRInt32 anOffset=-1) const;
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PRInt32 RFindCharInSet(const PRUnichar* aString,PRInt32 anOffset=-1) const;
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PRInt32 RFindCharInSet(const nsStr& aString,PRInt32 anOffset=-1) const;
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/**********************************************************************
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Comparison methods...
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*********************************************************************/
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/**
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* Compares a given string type to this string.
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* @update gess 7/27/98
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* @param S is the string to be compared
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* @param aIgnoreCase tells us how to treat case
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* @param aCount tells us how many chars to compare
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* @return -1,0,1
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*/
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PRInt32 CompareWithConversion(const char* aString,PRBool aIgnoreCase=PR_FALSE,PRInt32 aCount=-1) const;
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PRInt32 CompareWithConversion(const nsString& aString,PRBool aIgnoreCase=PR_FALSE,PRInt32 aCount=-1) const;
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PRInt32 CompareWithConversion(const PRUnichar* aString,PRBool aIgnoreCase=PR_FALSE,PRInt32 aCount=-1) const;
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/* a hack to make sure things that used to compile continue to compile
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even on compilers that don't have proper |explicit| support */
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inline PRInt32
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CompareWithConversion(const nsXPIDLString& aString, PRBool aIgnoreCase=PR_FALSE, PRInt32 aCount=-1) const
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{
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return CompareWithConversion(aString.get(), aIgnoreCase, aCount);
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}
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PRBool EqualsWithConversion(const nsString &aString,PRBool aIgnoreCase=PR_FALSE,PRInt32 aCount=-1) const;
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PRBool EqualsWithConversion(const char* aString,PRBool aIgnoreCase=PR_FALSE,PRInt32 aCount=-1) const;
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PRBool EqualsWithConversion(const PRUnichar* aString,PRBool aIgnoreCase=PR_FALSE,PRInt32 aCount=-1) const;
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/* a hack to make sure things that used to compile continue to compile
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even on compilers that don't have proper |explicit| support */
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inline PRBool
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EqualsWithConversion(const nsXPIDLString &aString, PRBool aIgnoreCase=PR_FALSE, PRInt32 aCount=-1) const
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{
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return EqualsWithConversion(aString.get(), aIgnoreCase, aCount);
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}
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PRBool EqualsAtom(/*FIX: const */nsIAtom* anAtom,PRBool aIgnoreCase) const;
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PRBool EqualsIgnoreCase(const nsString& aString) const;
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PRBool EqualsIgnoreCase(const char* aString,PRInt32 aCount=-1) const;
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PRBool EqualsIgnoreCase(/*FIX: const */nsIAtom *aAtom) const;
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/**
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* Determine if given buffer is plain ascii
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*
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* @param aBuffer -- if null, then we test *this, otherwise we test given buffer
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* @return TRUE if is all ascii chars or if strlen==0
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*/
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PRBool IsASCII(const PRUnichar* aBuffer=0);
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void DebugDump(void) const;
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/**
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* Determine if given char is a valid space character
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*
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* @param aChar is character to be tested
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* @return TRUE if is valid space char
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*/
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static PRBool IsSpace(PRUnichar ch);
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|
|
/**
|
|
* 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);
|
|
|
|
private:
|
|
// NOT TO BE IMPLEMENTED
|
|
// these signatures help clients not accidentally call the wrong thing helped by C++ automatic integral promotion
|
|
void operator=( char );
|
|
void AssignWithConversion( PRUnichar );
|
|
void AssignWithConversion( const PRUnichar*, PRInt32=-1 );
|
|
void AppendWithConversion( PRUnichar );
|
|
void AppendWithConversion( const PRUnichar*, PRInt32=-1 );
|
|
void InsertWithConversion( const PRUnichar*, PRUint32, PRInt32=-1 );
|
|
};
|
|
|
|
// NS_DEF_STRING_COMPARISON_OPERATORS(nsString, PRUnichar)
|
|
// NS_DEF_DERIVED_STRING_OPERATOR_PLUS(nsString, PRUnichar)
|
|
|
|
extern NS_COM int fputs(const nsString& aString, FILE* out);
|
|
//ostream& operator<<(ostream& aStream,const nsString& aString);
|
|
//virtual void DebugDump(ostream& aStream) const;
|
|
|
|
/**************************************************************
|
|
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_COM nsAutoString : public nsString {
|
|
public:
|
|
|
|
virtual ~nsAutoString();
|
|
nsAutoString();
|
|
nsAutoString(const nsAutoString& aString);
|
|
explicit nsAutoString(const nsAString& aString);
|
|
explicit nsAutoString(const nsString& aString);
|
|
explicit nsAutoString(const PRUnichar* aString);
|
|
nsAutoString(const PRUnichar* aString,PRInt32 aLength);
|
|
explicit nsAutoString(PRUnichar aChar);
|
|
explicit nsAutoString(const CBufDescriptor& aBuffer);
|
|
|
|
nsAutoString& operator=( const nsAutoString& aString ) { Assign(aString); return *this; }
|
|
private:
|
|
void operator=( char ); // NOT TO BE IMPLEMENTED
|
|
public:
|
|
nsAutoString& operator=( const nsAString& aReadable ) { Assign(aReadable); return *this; }
|
|
// nsAutoString& operator=( const nsPromiseReadable<PRUnichar>& aReadable ) { Assign(aReadable); return *this; }
|
|
nsAutoString& operator=( const PRUnichar* aPtr ) { Assign(aPtr); return *this; }
|
|
nsAutoString& operator=( PRUnichar aChar ) { Assign(aChar); return *this; }
|
|
|
|
/**
|
|
* Retrieve the size of this string
|
|
* @return string length
|
|
*/
|
|
virtual void SizeOf(nsISizeOfHandler* aHandler, PRUint32* aResult) const;
|
|
|
|
char mBuffer[kDefaultStringSize<<eTwoByte];
|
|
};
|
|
|
|
// NS_DEF_DERIVED_STRING_OPERATOR_PLUS(nsAutoString, PRUnichar)
|
|
|
|
class NS_COM NS_ConvertASCIItoUCS2
|
|
: public nsAutoString
|
|
/*
|
|
...
|
|
*/
|
|
{
|
|
public:
|
|
explicit NS_ConvertASCIItoUCS2( const char* );
|
|
NS_ConvertASCIItoUCS2( const char*, PRUint32 );
|
|
|
|
#if 0
|
|
operator const nsDependentString() const
|
|
{
|
|
return nsDependentString(mUStr, mLength);
|
|
}
|
|
#endif
|
|
|
|
private:
|
|
// NOT TO BE IMPLEMENTED
|
|
NS_ConvertASCIItoUCS2( PRUnichar );
|
|
};
|
|
|
|
class NS_COM NS_ConvertUTF8toUCS2
|
|
: public nsAutoString
|
|
{
|
|
public:
|
|
explicit
|
|
NS_ConvertUTF8toUCS2( const char* aCString )
|
|
{
|
|
Init( aCString, ~PRUint32(0) /* MAXINT */ );
|
|
}
|
|
|
|
NS_ConvertUTF8toUCS2( const char* aCString, PRUint32 aLength )
|
|
{
|
|
Init( aCString, aLength );
|
|
}
|
|
|
|
protected:
|
|
void Init( const char* aCString, PRUint32 aLength );
|
|
|
|
private:
|
|
NS_ConvertUTF8toUCS2( PRUnichar );
|
|
};
|
|
|
|
#endif
|
|
|
|
|