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+/*
+ * Copyright (C) 2003-2014 The Music Player Daemon Project
+ * http://www.musicpd.org
+ *
+ * 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 Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#ifndef MPD_UTIL_OPTIONPARSER_HXX
+#define MPD_UTIL_OPTIONPARSER_HXX
+
+#include <assert.h>
+
+class OptionDef;
+
+/**
+ * Command line option parser.
+ */
+class OptionParser
+{
+ int argc;
+ char **argv;
+ char *option;
+ char *option_raw;
+ bool is_long;
+public:
+ /**
+ * Constructs #OptionParser.
+ */
+ OptionParser(int _argc, char **_argv)
+ : argc(_argc - 1), argv(_argv + 1),
+ option(nullptr), option_raw(nullptr), is_long(false) { }
+
+ /**
+ * Checks if there are command line entries to process.
+ */
+ bool HasEntries() const { return argc > 0; }
+
+ /**
+ * Gets the last parsed option.
+ */
+ char *GetOption() {
+ assert(option_raw != nullptr);
+ return option_raw;
+ }
+
+ /**
+ * Checks if current option is a specified option.
+ */
+ bool CheckOption(const OptionDef& opt);
+
+ /**
+ * Checks if current option is a specified option
+ * or specified alternative option.
+ */
+ bool CheckOption(const OptionDef& opt, const OptionDef &alt_opt) {
+ return CheckOption(opt) || CheckOption(alt_opt);
+ }
+
+ /**
+ * Parses current command line entry.
+ * Returns true on success, false otherwise.
+ * Regardless of result, advances current position to the next
+ * command line entry.
+ */
+ bool ParseNext();
+
+ /**
+ * Checks if specified string is a command line option.
+ */
+ static bool IsOption(const char *s) {
+ assert(s != nullptr);
+ return s[0] == '-';
+ }
+};
+
+#endif