menu: generalize filtering, introduce interfaces

src/regexes.h

@@ -0,0 +1,62 @@
+/***************************************************************************
+ *   Copyright (C) 2008-2012 by Andrzej Rybczak                            *
+ *   electricityispower@gmail.com                                          *
+ *                                                                         *
+ *   This program 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 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ *   This program 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 this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.              *
+ ***************************************************************************/
+
+#ifndef _REGEXES_H
+#define _REGEXES_H
+
+#include <regex.h>
+#include <string>
+
+struct Regex
+{
+	Regex();
+	Regex(const std::string &regex, int cflags);
+	Regex(const Regex &rhs);
+	virtual ~Regex();
+	
+	/// @return regular expression
+	const std::string &regex() const { return m_regex; }
+	
+	/// @return compilation error (if there was any)
+	const std::string &error() const { return m_error; }
+	
+	/// compiles regular expression
+	/// @result true if compilation was successful, false otherwise
+	bool compile();
+	
+	/// compiles regular expression
+	/// @result true if compilation was successful, false otherwise
+	bool compile(const std::string &regex, int cflags);
+	
+	/// tries to match compiled regex with given string
+	/// @return true if string was matched, false otherwise
+	bool match(const std::string &s) const;
+	
+	Regex &operator=(const Regex &rhs);
+	
+private:
+	std::string m_regex;
+	std::string m_error;
+	regex_t m_rx;
+	int m_cflags;
+	bool m_compiled;
+};
+
+#endif // _REGEXES_H