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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.apache.org/licenses/LICENSE-2.0 .
*/
#ifndef INCLUDED_HWPFILTER_SOURCE_MZSTRING_H
#define INCLUDED_HWPFILTER_SOURCE_MZSTRING_H
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include <tools/long.hxx>
/** @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
~MzString();
int length() const;
const char* c_str() const;
operator char*() { return const_cast<char *>(c_str()); }
// Assignment
MzString &operator = (const MzString &s);
MzString &operator = (const char *s);
// Appending
MzString &operator << (const char *);
MzString &operator << (char);
MzString &operator << (unsigned char c) { return *this<<static_cast<char>(c); }
MzString &operator << (int);
MzString &operator << (tools::Long);
MzString &operator << (short i) { return *this<<static_cast<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);
// 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 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 Data;
}
else
return "";
}
// Non friend, non member operators
#endif // INCLUDED_HWPFILTER_SOURCE_MZSTRING_H
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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