168 lines
5.1 KiB
C++
168 lines
5.1 KiB
C++
/**
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* @file llcommandlineparser.h
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* @brief LLCommandLineParser class declaration
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*
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* $LicenseInfo:firstyear=2007&license=viewergpl$
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*
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* Copyright (c) 2007-2009, Linden Research, Inc.
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*
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* Second Life Viewer Source Code
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* The source code in this file ("Source Code") is provided by Linden Lab
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* to you under the terms of the GNU General Public License, version 2.0
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* ("GPL"), unless you have obtained a separate licensing agreement
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* ("Other License"), formally executed by you and Linden Lab. Terms of
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* the GPL can be found in doc/GPL-license.txt in this distribution, or
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* online at http://secondlifegrid.net/programs/open_source/licensing/gplv2
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*
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* There are special exceptions to the terms and conditions of the GPL as
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* it is applied to this Source Code. View the full text of the exception
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* in the file doc/FLOSS-exception.txt in this software distribution, or
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* online at
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* http://secondlifegrid.net/programs/open_source/licensing/flossexception
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*
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* By copying, modifying or distributing this software, you acknowledge
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* that you have read and understood your obligations described above,
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* and agree to abide by those obligations.
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*
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* ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
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* WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
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* COMPLETENESS OR PERFORMANCE.
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* $/LicenseInfo$
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*/
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#ifndef LL_LLCOMMANDLINEPARSER_H
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#define LL_LLCOMMANDLINEPARSER_H
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#include <boost/function/function1.hpp>
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// *NOTE:Mani The following is a forward decl of
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// boost::program_options::command_line_parser
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// "yay" c++!
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namespace boost
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{
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namespace program_options
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{
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template <class charT> class basic_command_line_parser;
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typedef basic_command_line_parser<char> command_line_parser;
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}
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}
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/**
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* @class LLCommandLineParser
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* @brief Handle defining and parsing the command line.
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*/
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class LLCommandLineParser
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{
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public:
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typedef std::vector< std::string > token_vector_t;
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/**
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* @brief Add a value-less option to the command line description.
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* @param option_name The long name of the cmd-line option.
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* @param description The text description of the option usage.
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*/
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void addOptionDesc(
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const std::string& option_name,
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boost::function1<void, const token_vector_t&> notify_callback = 0,
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unsigned int num_tokens = 0,
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const std::string& description = LLStringUtil::null,
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const std::string& short_name = LLStringUtil::null,
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bool composing = false,
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bool positional = false,
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bool last_option = false);
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/**
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* @brief Parse the command line given by argc/argv.
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*/
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bool parseCommandLine(int argc, char **argv);
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/**
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* @brief Parse the command line contained by the given file.
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*/
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bool parseCommandLineString(const std::string& str);
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/**
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* @brief Parse the command line contained by the given file.
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*/
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bool parseCommandLineFile(const std::basic_istream< char >& file);
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/**
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* @brief Call callbacks associated with option descriptions.
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*
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* Use this to handle the results of parsing.
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*/
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void notify();
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/** @brief Print a description of the configured options.
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*
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* Use this to print a description of options to the
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* given ostream. Useful for displaying usage info.
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*/
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std::ostream& printOptionsDesc(std::ostream& os) const;
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/** @brief Manual option setting accessors.
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*
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* Use these to retrieve get the values set for an option.
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* getOption will return an empty value if the option isn't
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* set.
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*/
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bool hasOption(const std::string& name) const;
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const token_vector_t& getOption(const std::string& name) const;
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/** @brief Print the list of configured options.
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*/
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void printOptions() const;
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/** @bried Get the error message, if it exists.
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*/
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const std::string& getErrorMessage() const { return mErrorMsg; }
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/** @brief Add a custom parser func to the parser.
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*
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* Use this method to add a custom parser for parsing values
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* the the simple parser may not handle.
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* it will be applied to each parameter before the
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* default parser gets a chance.
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* The parser_func takes an input string, and should return a
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* name/value pair as the result.
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*/
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typedef boost::function1<std::pair<std::string, std::string>, const std::string&> parser_func;
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void setCustomParser(parser_func f) { mExtraParser = f; }
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private:
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bool parseAndStoreResults(boost::program_options::command_line_parser& clp);
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std::string mErrorMsg;
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parser_func mExtraParser;
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};
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inline std::ostream& operator<<(std::ostream& out, const LLCommandLineParser& clp)
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{
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return clp.printOptionsDesc(out);
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}
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class LLControlGroup;
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/**
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* @class LLControlGroupCLP
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* @brief Uses the CLP to configure an LLControlGroup
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*
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*
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*/
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class LLControlGroupCLP : public LLCommandLineParser
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{
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public:
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/**
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* @brief Configure the command line parser according the given config file.
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*
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* @param config_filename The name of the XML based LLSD config file.
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* @param clp A reference to the command line parser object to configure.
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*
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* *FIX:Mani Specify config file format.
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*/
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void configure(const std::string& config_filename,
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LLControlGroup* controlGroup);
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};
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#endif // LL_LLCOMMANDLINEPARSER_H
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