include/QtCore/qstringmatcher.h

0001 // Copyright (C) 2020 The Qt Company Ltd.
0002 // Copyright (C) 2019 Mail.ru Group.
0003 // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
0004
0005 #ifndef QSTRINGMATCHER_H
0006 #define QSTRINGMATCHER_H
0007
0008 #include <QtCore/qstring.h>
0009 #include <QtCore/qstringview.h>
0010
0011 QT_BEGIN_NAMESPACE
0012
0013
0014 class QStringMatcherPrivate;
0015
0016 class Q_CORE_EXPORT QStringMatcher
0017 {
0018     void updateSkipTable();
0019 public:
0020     QStringMatcher() = default;
0021     explicit QStringMatcher(const QString &pattern,
0022                    Qt::CaseSensitivity cs = Qt::CaseSensitive);
0023     QStringMatcher(const QChar *uc, qsizetype len,
0024                    Qt::CaseSensitivity cs = Qt::CaseSensitive)
0025         : QStringMatcher(QStringView(uc, len), cs)
0026     {}
0027     QStringMatcher(QStringView pattern,
0028                    Qt::CaseSensitivity cs = Qt::CaseSensitive);
0029     QStringMatcher(const QStringMatcher &other);
0030     ~QStringMatcher();
0031
0032     QStringMatcher &operator=(const QStringMatcher &other);
0033
0034     void setPattern(const QString &pattern);
0035     void setCaseSensitivity(Qt::CaseSensitivity cs);
0036
0037     qsizetype indexIn(const QString &str, qsizetype from = 0) const
0038     { return indexIn(QStringView(str), from); }
0039     qsizetype indexIn(const QChar *str, qsizetype length, qsizetype from = 0) const
0040     { return indexIn(QStringView(str, length), from); }
0041     qsizetype indexIn(QStringView str, qsizetype from = 0) const;
0042     QString pattern() const;
0043     QStringView patternView() const noexcept
0044     { return q_sv; }
0045
0046     inline Qt::CaseSensitivity caseSensitivity() const { return q_cs; }
0047
0048 private:
0049     QStringMatcherPrivate *d_ptr = nullptr;
0050     Qt::CaseSensitivity q_cs = Qt::CaseSensitive;
0051     QString q_pattern;
0052     QStringView q_sv;
0053     uchar q_skiptable[256] = {};
0054 };
0055
0056 QT_END_NAMESPACE
0057
0058 #endif // QSTRINGMATCHER_H