7b99cdb2d7
so I don't read the "then" block as being a sequential statements Change-Id: Ib2004acd3518bd4ebd2246f02a26c2c0a8bbab4c Reviewed-on: https://gerrit.libreoffice.org/82069 Tested-by: Jenkins Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>
166 lines
4.7 KiB
C++
166 lines
4.7 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* This file incorporates work covered by the following license notice:
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.apache.org/licenses/LICENSE-2.0 .
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*/
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#ifndef INCLUDED_HWPFILTER_SOURCE_MZSTRING_H
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#define INCLUDED_HWPFILTER_SOURCE_MZSTRING_H
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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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/** @name MzString class
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It was supposed to be used instead of std::string.
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Notes for usage:
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When you declare an MzString, it is initially empty. There is no need to
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do things like #MzString a = "";#, especially not in constructors.
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If you want to use a default empty MzString as a parameter, use
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#void foo(MzString par = MzString()); // Correct#
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rather than
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#void foo(MzString par = ""); // WRONG!#
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#void foo(MzString par = 0); // WRONG!#
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(The last one is only wrong because some compilers can't handle it.)
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Methods that take an index as parameter all follow this rule: Valid indexes
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go from 0 to length()-1.
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\begin{tabular}{rl}
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Correct: & #foo.substr(0, length()-1);# \\
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Wrong: & #bar.substr(0, length());#
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\end{tabular}
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It is important that you declare MzStrings as const if possible, because
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some methods are much more efficient in const versions.
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If you want to check whether a string is empty, do
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#if (foo.empty()) something right#
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rather than something along the lines of
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#if (!foo) completely wrong#
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When you use the #.copy()# method, MzString calls "#new []#", so you have to
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release the memory with #delete[]#. Don't preallocate memory.
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When you want to copy an MzString, just do
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#MzString a, b = "String";#
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#a = b; // That's it!#
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not something like
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#MzString a, b = "String";#
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#a = b.copy();#
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The class automatically handles deep copying when required.
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*/
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class MzString
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{
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public:
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MzString(); // Create an empty string
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~MzString();
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int length() const;
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const char* c_str() const;
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operator char*() { return const_cast<char *>(c_str()); }
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// Assignment
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MzString &operator = (const MzString &s);
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MzString &operator = (const char *s);
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// Appending
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MzString &operator << (const char *);
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MzString &operator << (char);
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MzString &operator << (unsigned char c) { return *this<<static_cast<char>(c); }
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MzString &operator << (int);
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MzString &operator << (long);
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MzString &operator << (short i) { return *this<<static_cast<int>(i); }
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MzString &operator << (MzString const &);
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/* MzString &operator << (MzString *s) { return *this<<*s; }
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// Removing
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char operator >> (char &c);
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*/
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// Access to specific characters
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//char &operator [] (int n);
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char operator [] (int n);
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// Comparison
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// Return:
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// 0 : 'this' is equal to 's'.
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// -1 : 'this' is less than 's'.
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// 1 : 'this' is greater than 's'.
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int compare(const char *s);
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// Searching for parts
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int find (char c);
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int find (char c, int pos);
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int rfind (char c);
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int rfind (char c, int pos);
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// Manipulation
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void replace(int, char c);
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void append (MzString const &s);
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void append (const char *s);
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void append (const char *s, int n);
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private:
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int Length; // Current Length
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int Allocated; // Total space allocated
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char *Data; // The actual contents
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// Allocate some space for the data.
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// Delete Data if it has been allocated.
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bool allocate(int len);
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};
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inline int MzString::length() const
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{
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return Length;
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}
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inline const char* MzString::c_str() const
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{
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if (Data)
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{
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Data[Length] = '\0'; // We always leave room for this.
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return Data;
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}
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else
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return "";
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}
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// Non friend, non member operators
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#endif // INCLUDED_HWPFILTER_SOURCE_MZSTRING_H
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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