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+/** 
+ * @file llcommandlineparser.h
+ * @brief LLCommandLineParser class declaration
+ *
+ * $LicenseInfo:firstyear=2007&license=viewergpl$
+ * 
+ * Copyright (c) 2007, Linden Research, Inc.
+ * 
+ * Second Life Viewer Source Code
+ * The source code in this file ("Source Code") is provided by Linden Lab
+ * to you under the terms of the GNU General Public License, version 2.0
+ * ("GPL"), unless you have obtained a separate licensing agreement
+ * ("Other License"), formally executed by you and Linden Lab.  Terms of
+ * the GPL can be found in doc/GPL-license.txt in this distribution, or
+ * online at http://secondlife.com/developers/opensource/gplv2
+ * 
+ * There are special exceptions to the terms and conditions of the GPL as
+ * it is applied to this Source Code. View the full text of the exception
+ * in the file doc/FLOSS-exception.txt in this software distribution, or
+ * online at http://secondlife.com/developers/opensource/flossexception
+ * 
+ * By copying, modifying or distributing this software, you acknowledge
+ * that you have read and understood your obligations described above,
+ * and agree to abide by those obligations.
+ * 
+ * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
+ * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
+ * COMPLETENESS OR PERFORMANCE.
+ * $/LicenseInfo$
+*/
+
+#ifndef LL_LLCOMMANDLINEPARSER_H
+#define LL_LLCOMMANDLINEPARSER_H
+
+#include <boost/function/function1.hpp>
+
+/** 
+ * @class LLCommandLineParser
+ * @brief Handle defining and parsing the command line.
+ */
+class LLCommandLineParser
+{
+public:
+    typedef std::vector< std::string > token_vector_t;
+
+    /**
+     * @brief Add a value-less option to the command line description.
+     * @param option_name The long name of the cmd-line option. 
+     * @param description The text description of the option usage.
+     */
+    void addOptionDesc(
+        const LLString& option_name, 
+        boost::function1<void, const token_vector_t&> notify_callback = 0,
+        unsigned int num_tokens = 0,
+        const LLString& description = LLString::null,
+        const LLString& short_name = LLString::null,
+        bool composing = false,
+        bool positional = false,
+        bool last_option = false);
+
+
+    /** 
+     * @brief Parse the command line given by argc/argv.
+     */
+	bool parseCommandLine(int argc, char **argv);
+
+    /** 
+     * @brief Parse the command line contained by the given file.
+     */
+    bool parseCommandLineString(const std::string& str);
+
+    /** 
+     * @brief Parse the command line contained by the given file.
+     */
+    bool parseCommandLineFile(const std::basic_istream< char >& file);
+
+    /** 
+     * @brief Call callbacks associated with option descriptions.
+     * 
+     * Use this to handle the results of parsing. 
+     */
+    void notify();
+
+    /** @brief Print a description of the configured options.
+     *
+     * Use this to print a description of options to the
+     * given ostream. Useful for displaying usage info.
+     */
+    std::ostream& printOptionsDesc(std::ostream& os) const;
+
+    /** @brief Manual option setting accessors.
+     * 
+     * Use these to retrieve get the values set for an option.
+     * getOption will return an empty value if the option isn't
+     * set. 
+     */
+    bool hasOption(const std::string& name) const;
+    const token_vector_t& getOption(const std::string& name) const;
+
+    void printOptions() const;
+};
+
+inline std::ostream& operator<<(std::ostream& out, const LLCommandLineParser& clp)
+{
+    return clp.printOptionsDesc(out);
+}
+
+class LLControlGroup; 
+
+/** 
+ * @class LLControlGroupCLP
+ * @brief Uses the CLP to configure an LLControlGroup
+ *
+ * 
+ */
+class LLControlGroupCLP : public LLCommandLineParser
+{
+public:
+    /**
+     * @brief Configure the command line parser according the given config file.
+     *
+     * @param config_filename The name of the XML based LLSD config file. 
+     * @param clp A reference to the command line parser object to configure.
+     *
+     * *FIX:Mani Specify config file format.
+     */
+    void configure(const LLString& config_filename, 
+                   LLControlGroup* controlGroup);
+};
+
+#endif // LL_LLCOMMANDLINEPARSER_H