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234 lines
9.7 KiB
C
234 lines
9.7 KiB
C
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/* -*- 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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* LAST MODS: gess 28Feb98
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*
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* This very simple string class that knows how to do
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* efficient (dynamic) resizing. It offers almost no
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* i18n support, and will undoubtedly have to be replaced.
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*
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*/
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#ifndef _NSSTRING
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#define _NSSTRING
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#include "prtypes.h"
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#include "nscore.h"
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#include "nsIAtom.h"
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#include <iostream.h>
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#include <stdio.h>
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class NS_BASE nsString {
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public:
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nsString(const char* anISOLatin1="");
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nsString(const nsString&);
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nsString(const PRUnichar* aUnicode);
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virtual ~nsString();
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PRInt32 Length() const { return mLength; }
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void SetLength(PRInt32 aLength);
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void Truncate(PRInt32 anIndex=0);
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virtual void EnsureCapacityFor(PRInt32 aNewLength);
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///accessor methods
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//@{
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PRUnichar* GetUnicode(void) const;
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operator PRUnichar*() const;
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#if 0
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// This is NOT allowed because it has to do a malloc to
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// create the iso-latin-1 version of the unicode string
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operator char*() const;
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#endif
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PRUnichar* operator()() const;
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PRUnichar operator()(PRInt32 i) const;
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PRUnichar& operator[](PRInt32 i) const;
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PRUnichar& CharAt(PRInt32 anIndex) const;
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PRUnichar& First() const;
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PRUnichar& Last() const;
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//string creation methods...
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nsString operator+(const nsString& aString);
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nsString operator+(const char* anISOLatin1);
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nsString operator+(char aChar);
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nsString operator+(const PRUnichar* aBuffer);
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nsString operator+(PRUnichar aChar);
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void ToLowerCase();
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void ToLowerCase(nsString& aString) const;
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void ToUpperCase();
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void ToUpperCase(nsString& aString) const;
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nsString* ToNewString() const;
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char* ToNewCString() const;
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char* ToCString(char* aBuf,PRInt32 aBufLength) const;
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void ToString(nsString& aString) const;
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PRUnichar* ToNewUnicode() const;
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float ToFloat(PRInt32* aErrorCode) const;
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PRInt32 ToInteger(PRInt32* aErrorCode) const;
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//@}
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///string manipulation methods...
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//@{
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nsString& operator=(const nsString& aString);
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nsString& operator=(const char* anISOLatin1);
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nsString& operator=(char aChar);
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nsString& operator=(const PRUnichar* aBuffer);
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nsString& operator=(PRUnichar aChar);
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nsString& SetString(const PRUnichar* aStr,PRInt32 aLength=-1);
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nsString& SetString(const char* anISOLatin1,PRInt32 aLength=-1);
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nsString& operator+=(const nsString& aString);
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nsString& operator+=(const char* anISOLatin1);
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nsString& operator+=(const PRUnichar* aBuffer);
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nsString& operator+=(PRUnichar aChar);
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nsString& Append(const nsString& aString,PRInt32 aLength=-1);
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nsString& Append(const char* anISOLatin1,PRInt32 aLength=-1);
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nsString& Append(char aChar);
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nsString& Append(const PRUnichar* aBuffer,PRInt32 aLength=-1);
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nsString& Append(PRUnichar aChar);
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nsString& Append(PRInt32 aInteger,PRInt32 aRadix); //radix=8,10 or 16
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nsString& Append(float aFloat);
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PRInt32 Left(nsString& aCopy,PRInt32 aCount);
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PRInt32 Mid(nsString& aCopy,PRInt32 anOffset,PRInt32 aCount);
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PRInt32 Right(nsString& aCopy,PRInt32 aCount);
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PRInt32 Insert(nsString& aCopy,PRInt32 anOffset,PRInt32 aCount=-1);
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nsString& Cut(PRInt32 anOffset,PRInt32 aCount);
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nsString& StripChars(const char* aSet);
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nsString& StripWhitespace();
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nsString& Trim( const char* aSet,
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PRBool aEliminateLeading=PR_TRUE,
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PRBool aEliminateTrailing=PR_TRUE);
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nsString& CompressWhitespace( PRBool aEliminateLeading=PR_TRUE,
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PRBool aEliminateTrailing=PR_TRUE);
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static PRBool IsSpace(PRUnichar ch);
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static PRBool IsAlpha(PRUnichar ch);
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//@}
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///searching methods...
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//@{
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PRInt32 Find(const char* anISOLatin1) const;
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PRInt32 Find(const PRUnichar* aString) const;
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PRInt32 Find(PRUnichar aChar,PRInt32 offset=0) const;
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PRInt32 Find(const nsString& aString) const;
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PRInt32 FindFirstCharInSet(const char* anISOLatin1Set,PRInt32 offset=0) const;
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PRInt32 FindFirstCharInSet(nsString& aString,PRInt32 offset=0) const;
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PRInt32 FindLastCharInSet(const char* anISOLatin1Set,PRInt32 offset=0) const;
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PRInt32 FindLastCharInSet(nsString& aString,PRInt32 offset=0) const;
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PRInt32 RFind(const char* anISOLatin1,PRBool aIgnoreCase=PR_FALSE) const;
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PRInt32 RFind(const PRUnichar* aString,PRBool aIgnoreCase=PR_FALSE) const;
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PRInt32 RFind(const nsString& aString,PRBool aIgnoreCase=PR_FALSE) const;
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PRInt32 RFind(PRUnichar aChar,PRBool aIgnoreCase=PR_FALSE) const;
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//@}
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///comparision methods...
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//@{
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virtual PRInt32 Compare(const nsString &S,PRBool aIgnoreCase=PR_FALSE) const;
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virtual PRInt32 Compare(const char *anISOLatin1,PRBool aIgnoreCase=PR_FALSE) const;
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virtual PRInt32 Compare(const PRUnichar *aString,PRBool aIgnoreCase=PR_FALSE) const;
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PRInt32 operator==(const nsString &S) const;
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PRInt32 operator==(const char *anISOLatin1) const;
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PRInt32 operator==(const PRUnichar* aString) const;
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PRInt32 operator!=(const nsString &S) const;
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PRInt32 operator!=(const char *anISOLatin1) const;
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PRInt32 operator!=(const PRUnichar* aString) const;
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PRInt32 operator<(const nsString &S) const;
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PRInt32 operator<(const char *anISOLatin1) const;
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PRInt32 operator<(const PRUnichar* aString) const;
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PRInt32 operator>(const nsString &S) const;
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PRInt32 operator>(const char *anISOLatin1) const;
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PRInt32 operator>(const PRUnichar* aString) const;
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PRInt32 operator<=(const nsString &S) const;
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PRInt32 operator<=(const char *anISOLatin1) const;
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PRInt32 operator<=(const PRUnichar* aString) const;
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PRInt32 operator>=(const nsString &S) const;
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PRInt32 operator>=(const char *anISOLatin1) const;
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PRInt32 operator>=(const PRUnichar* aString) const;
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PRBool Equals(const nsString& aString) const;
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PRBool Equals(const char* anISOLatin1) const;
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PRBool Equals(const nsIAtom *aAtom) const;
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PRBool Equals(const PRUnichar* s1, const PRUnichar* s2) const;
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PRBool EqualsIgnoreCase(const nsString& aString) const;
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PRBool EqualsIgnoreCase(const char* anISOLatin1) const;
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PRBool EqualsIgnoreCase(const nsIAtom *aAtom) const;
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PRBool EqualsIgnoreCase(const PRUnichar* s1, const PRUnichar* s2) const;
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//@}
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static void SelfTest();
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virtual void DebugDump(ostream& aStream) const;
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protected:
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typedef PRUnichar chartype;
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chartype* mStr;
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PRInt32 mLength;
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PRInt32 mCapacity;
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static PRInt32 mInstanceCount;
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};
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extern NS_BASE int fputs(const nsString& aString, FILE* out);
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//----------------------------------------------------------------------
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/**
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* A version of nsString which is designed to be used as an automatic
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* variable. It attempts to operate out of a fixed size internal
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* buffer until too much data is added; then a dynamic buffer is
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* allocated and grown as necessary.
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*/
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// XXX template this with a parameter for the size of the buffer?
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class NS_BASE nsAutoString : public nsString {
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public:
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nsAutoString();
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nsAutoString(const nsString& other);
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nsAutoString(const nsAutoString& other);
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nsAutoString(PRUnichar aChar);
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nsAutoString(const char* isolatin1);
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nsAutoString(const PRUnichar* us, PRInt32 uslen = -1);
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virtual ~nsAutoString();
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static void SelfTest();
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protected:
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virtual void EnsureCapacityFor(PRInt32 aNewLength);
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PRUnichar mBuf[32];
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private:
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// XXX these need writing I suppose
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nsAutoString& operator=(const nsAutoString& other);
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};
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#endif
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