Initial commit.

ext/libstrawberry-tagreader/fmpsparser.h

@@ -0,0 +1,58 @@
+/* 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 <QRegExp>
+#include <QVariantList>
+
+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:
+  QRegExp float_re_;
+  QRegExp string_re_;
+  QRegExp escape_re_;
+  Result result_;
+};
+
+#endif // FMPSPARSER_H