/**************************************************************************** ** ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). ** All rights reserved. ** Contact: Nokia Corporation (qt-info@nokia.com) ** ** This file is part of the QtCore module of the Qt Toolkit. ** ** $QT_BEGIN_LICENSE:LGPL$ ** No Commercial Usage ** This file contains pre-release code and may not be distributed. ** You may use this file in accordance with the terms and conditions ** contained in the Technology Preview License Agreement accompanying ** this package. ** ** GNU Lesser General Public License Usage ** Alternatively, this file may be used under the terms of the GNU Lesser ** General Public License version 2.1 as published by the Free Software ** Foundation and appearing in the file LICENSE.LGPL included in the ** packaging of this file. Please review the following information to ** ensure the GNU Lesser General Public License version 2.1 requirements ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. ** ** In addition, as a special exception, Nokia gives you certain additional ** rights. These rights are described in the Nokia Qt LGPL Exception ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. ** ** If you have questions regarding the use of this file, please contact ** Nokia at qt-info@nokia.com. ** ** ** ** ** ** ** ** ** $QT_END_LICENSE$ ** ****************************************************************************/ #include "qstringbuilder.h" /*! \class QLatin1Literal \internal \reentrant \since 4.6 \brief The QLatin1Literal class provides a thin wrapper around string literals used in source code. \ingroup tools \ingroup shared \ingroup string-processing Unlike \c QLatin1String, a \c QLatin1Literal can retrieve its size without iterating over the literal. The main use of \c QLatin1Literal is in conjunction with \c QStringBuilder to reduce the number of reallocations needed to build up a string from smaller chunks. \sa QStringBuilder, QLatin1String, QString, QStringRef */ /*! \fn int QLatin1Literal::size() const Returns the number of characters in the literal \e{excluding} the trailing NULL char. */ /*! \fn QLatin1Literal::QLatin1Literal(const char str) Constructs a new literal from the string \a str. */ /*! \fn const char *QLatin1Literal::data() const Returns a pointer to the first character of the string literal. The string literal is terminated by a NUL character. */ /*! \class QStringBuilder \internal \reentrant \since 4.6 \brief The QStringBuilder class is a template class that provides a facility to build up QStrings from smaller chunks. \ingroup tools \ingroup shared \ingroup string-processing To build a QString by multiple concatenations, QString::operator+() is typically used. This causes \e{n - 1} reallocations when building a string from \e{n} chunks. QStringBuilder uses expression templates to collect the individual chunks, compute the total size, allocate the required amount of memory for the final QString object, and copy the chunks into the allocated memory. The QStringBuilder class is not to be used explicitly in user code. Instances of the class are created as return values of the operator%() function, acting on objects of type QString, QLatin1String, QLatin1Literal, QStringRef, QChar, QCharRef, QLatin1Char, and \c char. Concatenating strings with operator%() generally yields better performance then using \c QString::operator+() on the same chunks if there are three or more of them, and performs equally well in other cases. \sa QLatin1Literal, QString */ /*! \fn QStringBuilder::QStringBuilder(const A &a, const B &b) Constructs a QStringBuilder from \a a and \a b. */ /* \fn QStringBuilder::operator%(const A &a, const B &b) Returns a \c QStringBuilder object that is converted to a QString object when assigned to a variable of QString type or passed to a function that takes a QString parameter. This function is usable with arguments of type \c QString, \c QLatin1String, \c QLatin1Literal, \c QStringRef, \c QChar, \c QCharRef, \c QLatin1Char, and \c char. */ /*! \fn QByteArray QStringBuilder::toLatin1() const Returns a Latin-1 representation of the string as a QByteArray. The returned byte array is undefined if the string contains non-Latin1 characters. */ /*! \fn QStringBuilder::operator QString() const Converts the \c QLatin1Literal into a \c QString object. */