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/*************************************************************************
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* Copyright 2008 by Sun Microsystems, Inc.
*
* OpenOffice.org - a multi-platform office productivity suite
*
* $RCSfile: mzstring.h,v $
* $Revision: 1.5 $
*
* This file is part of OpenOffice.org.
*
* OpenOffice.org is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 3
* only, as published by the Free Software Foundation.
*
* OpenOffice.org is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License version 3 for more details
* (a copy is included in the LICENSE file that accompanied this code).
*
* You should have received a copy of the GNU Lesser General Public License
* version 3 along with OpenOffice.org. If not, see
* <http://www.openoffice.org/license.html>
* for a copy of the LGPLv3 License.
*
************************************************************************/
#ifndef _MZSTRING_H_
#define _MZSTRING_H_
#ifdef __GNUG__
# pragma interface
#endif
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
/** @name MzString class
It was supposed to be used instead of std::string.
Notes for usage:
When you declare an MzString, it is initially empty. There is no need to
do things like #MzString a = "";#, especially not in constructors.
If you want to use a default empty MzString as a parameter, use
#void foo(MzString par = MzString()); // Correct#
rather than
#void foo(MzString par = ""); // WRONG!#
#void foo(MzString par = 0); // WRONG!#
(The last one is only wrong because some compilers can't handle it.)
Methods that take an index as parameter all follow this rule: Valid indexes
go from 0 to length()-1.
\begin{tabular}{rl}
Correct: & #foo.substr(0, length()-1);# \\
Wrong: & #bar.substr(0, length());#
\end{tabular}
It is important that you declare MzStrings as const if possible, because
some methods are much more efficient in const versions.
If you want to check whether a string is empty, do
#if (foo.empty()) something right#
rather than something along the lines of
#if (!foo) completely wrong#
When you use the #.copy()# method, MzString calls "#new []#", so you have to
release the memory with #delete[]#. Don't preallocate memory.
When you want to copy an MzString, just do
#MzString a, b = "String";#
#a = b; // That's it!#
not something like
#MzString a, b = "String";#
#a = b.copy();#
The class automatically handles deep copying when required.
*/
class MzString
{
public:
MzString(); // Create an empty string
// if len = 0, len becomes s.length)
MzString(MzString const &s, int len = 0);
~MzString();
int length() const;
const char* c_str() const;
operator char*() { return (char *)c_str(); }
// If it is not posible to use the constructor with an initial
// allocation size, use the following member to set the size.
bool resize(int len);
// Assignment
void operator = (MzString &s);
void operator = (const char *s);
// Appending
MzString &operator += (char);
MzString &operator += (const char *);
MzString &operator += (MzString const &);
MzString &operator << (const char *);
MzString &operator << (char);
MzString &operator << (unsigned char c) { return *this<<(char)c; }
MzString &operator << (int);
MzString &operator << (long);
MzString &operator << (short i) { return *this<<(int)i; }
MzString &operator << (MzString const &);
/* MzString &operator << (MzString *s) { return *this<<*s; }
// Removing
char operator >> (char &c);
*/
// Access to specific characters
//char &operator [] (int n);
char operator [] (int n);
char last();
// Comparison
// Return:
// 0 : 'this' is equal to 's'.
// -1 : 'this' is less than 's'.
// 1 : 'this' is greater than 's'.
int compare(const char *s);
// Searching for parts
int find (char c);
int find (char c, int pos);
int find (char *);
int find (char *, int pos);
int rfind (char c);
int rfind (char c, int pos);
// Manipulation
void replace(int, char c);
void append (MzString const &s);
void append (const char *s);
void append (const char *s, int n);
private:
int Length; // Current Length
int Allocated; // Total space allocated
char *Data; // The actual contents
// Allocate some space for the data.
// Delete Data if it has been allocated.
bool allocate(int len);
};
inline int MzString::length() const
{
return Length;
}
inline const char* MzString::c_str() const
{
if (Data)
{
Data[Length] = '\0'; // We always leave room for this.
return (const char *)Data;
} else
return "";
}
//
// Non friend, non member operators
//
#endif /* _MZSTRING_H_ */
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