strawberry-audio-player-win.../ext/libstrawberry-tagreader/fmpsparser.h

65 lines
1.9 KiB
C++

/* This file is part of Strawberry.
Copyright 2010, David Sansome <me@davidsansome.com>
Strawberry is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
Strawberry is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with Strawberry. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef FMPSPARSER_H
#define FMPSPARSER_H
#include "config.h"
#include <QList>
#include <QMetaType>
#include <QString>
#include <QRegularExpression>
class QVariant;
class FMPSParser {
public:
FMPSParser();
// A FMPS result is a list of lists of values (where a value is a string or
// a float).
typedef QList<QVariantList> Result;
// Parses a FMPS value and returns true on success.
bool Parse(const QString &data);
// Gets the result of the last successful Parse.
Result result() const { return result_; }
// Returns true if result() is empty.
bool is_empty() const { return result().isEmpty() || result()[0].isEmpty(); }
// Internal functions, public for unit tests
int ParseValue(const QString &data, QVariant *ret) const;
int ParseValueRef(const QStringRef &data, QVariant *ret) const;
int ParseList(const QString &data, QVariantList *ret) const;
int ParseListRef(const QStringRef &data, QVariantList *ret) const;
int ParseListList(const QString &data, Result *ret) const;
int ParseListListRef(const QStringRef &data, Result *ret) const;
private:
QRegularExpression float_re_;
QRegularExpression string_re_;
QRegularExpression escape_re_;
Result result_;
};
#endif // FMPSPARSER_H