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/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the QtQml module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 3 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL3 included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or (at your option) the GNU General
** Public license version 3 or any later version approved by the KDE Free
** Qt Foundation. The licenses are as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-2.0.html and
** https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "qhashedstring_p.h"
QT_BEGIN_NAMESPACE
QHashedStringRef QHashedStringRef::mid(int offset, int length) const
{
Q_ASSERT(offset < m_length);
return QHashedStringRef(m_data + offset,
(length == -1 || (offset + length) > m_length)?(m_length - offset):length);
}
bool QHashedStringRef::endsWith(const QString &s) const
{
return s.length() < m_length &&
QHashedString::compare(s.constData(), m_data + m_length - s.length(), s.length());
}
bool QHashedStringRef::startsWith(const QString &s) const
{
return s.length() < m_length &&
QHashedString::compare(s.constData(), m_data, s.length());
}
static int findChar(const QChar *str, int len, QChar ch, int from)
{
const ushort *s = (const ushort *)str;
ushort c = ch.unicode();
if (from < 0)
from = qMax(from + len, 0);
if (from < len) {
const ushort *n = s + from - 1;
const ushort *e = s + len;
while (++n != e)
if (*n == c)
return n - s;
}
return -1;
}
int QHashedStringRef::indexOf(const QChar &c, int from) const
{
return findChar(m_data, m_length, c, from);
}
QString QHashedStringRef::toString() const
{
if (m_length == 0)
return QString();
return QString(m_data, m_length);
}
QString QHashedCStringRef::toUtf16() const
{
if (m_length == 0)
return QString();
QString rv;
rv.resize(m_length);
writeUtf16((quint16*)rv.data());
return rv;
}
QT_END_NAMESPACE
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