diff options
Diffstat (limited to 'src/third_party/boost-1.60.0/boost/program_options/detail/cmdline.hpp')
| -rw-r--r-- | src/third_party/boost-1.60.0/boost/program_options/detail/cmdline.hpp | 159 |
1 files changed, 159 insertions, 0 deletions
diff --git a/src/third_party/boost-1.60.0/boost/program_options/detail/cmdline.hpp b/src/third_party/boost-1.60.0/boost/program_options/detail/cmdline.hpp new file mode 100644 index 00000000000..8e3bcc6dc64 --- /dev/null +++ b/src/third_party/boost-1.60.0/boost/program_options/detail/cmdline.hpp @@ -0,0 +1,159 @@ +// Copyright Vladimir Prus 2002-2004. +// Distributed under the Boost Software License, Version 1.0. +// (See accompanying file LICENSE_1_0.txt +// or copy at http://www.boost.org/LICENSE_1_0.txt) + + +#ifndef BOOST_CMDLINE_VP_2003_05_19 +#define BOOST_CMDLINE_VP_2003_05_19 + +#include <boost/program_options/config.hpp> +#include <boost/program_options/errors.hpp> +#include <boost/program_options/cmdline.hpp> +#include <boost/program_options/option.hpp> +#include <boost/program_options/options_description.hpp> +#include <boost/program_options/positional_options.hpp> + + +#include <boost/detail/workaround.hpp> + +#include <boost/function.hpp> + +#include <string> +#include <vector> + +#if defined(BOOST_MSVC) +# pragma warning (push) +# pragma warning (disable:4251) // class 'std::vector<_Ty>' needs to have dll-interface to be used by clients of class 'boost::program_options::positional_options_description' +#endif + +namespace boost { namespace program_options { namespace detail { + + /** Command line parser class. Main requirements were: + - Powerful enough to support all common uses. + - Simple and easy to learn/use. + - Minimal code size and external dependencies. + - Extensible for custom syntaxes. + + First all options are registered. After that, elements of command line + are extracted using operator++. + + For each element, user can find + - if it's an option or an argument + - name of the option + - index of the option + - option value(s), if any + + Sometimes the registered option name is not equal to the encountered + one, for example, because name abbreviation is supported. Therefore + two option names can be obtained: + - the registered one + - the one found at the command line + + There are lot of style options, which can be used to tune the command + line parsing. In addition, it's possible to install additional parser + which will process custom option styles. + + @todo mininal match length for guessing? + */ + class BOOST_PROGRAM_OPTIONS_DECL cmdline { + public: + + typedef ::boost::program_options::command_line_style::style_t style_t; + + typedef function1<std::pair<std::string, std::string>, + const std::string&> + additional_parser; + + typedef function1<std::vector<option>, std::vector<std::string>&> + style_parser; + + /** Constructs a command line parser for (argc, argv) pair. Uses + style options passed in 'style', which should be binary or'ed values + of style_t enum. It can also be zero, in which case a "default" + style will be used. If 'allow_unregistered' is true, then allows + unregistered options. They will be assigned index 1 and are + assumed to have optional parameter. + */ + cmdline(const std::vector<std::string>& args); + + /** @overload */ + cmdline(int argc, const char*const * argv); + + void style(int style); + + /** returns the canonical option prefix associated with the command_line_style + * In order of precedence: + * allow_long : allow_long + * allow_long_disguise : allow_long_disguise + * allow_dash_for_short : allow_short | allow_dash_for_short + * allow_slash_for_short: allow_short | allow_slash_for_short + * + * This is mainly used for the diagnostic messages in exceptions + */ + int get_canonical_option_prefix(); + + void allow_unregistered(); + + void set_options_description(const options_description& desc); + void set_positional_options( + const positional_options_description& m_positional); + + std::vector<option> run(); + + std::vector<option> parse_long_option(std::vector<std::string>& args); + std::vector<option> parse_short_option(std::vector<std::string>& args); + std::vector<option> parse_dos_option(std::vector<std::string>& args); + std::vector<option> parse_disguised_long_option( + std::vector<std::string>& args); + std::vector<option> parse_terminator( + std::vector<std::string>& args); + std::vector<option> handle_additional_parser( + std::vector<std::string>& args); + + + /** Set additional parser. This will be called for each token + of command line. If first string in pair is not empty, + then the token is considered matched by this parser, + and the first string will be considered an option name + (which can be long or short), while the second will be + option's parameter (if not empty). + Note that additional parser can match only one token. + */ + void set_additional_parser(additional_parser p); + + void extra_style_parser(style_parser s); + + void check_style(int style) const; + + bool is_style_active(style_t style) const; + + void init(const std::vector<std::string>& args); + + void + finish_option(option& opt, + std::vector<std::string>& other_tokens, + const std::vector<style_parser>& style_parsers); + + // Copies of input. + std::vector<std::string> args; + style_t m_style; + bool m_allow_unregistered; + + const options_description* m_desc; + const positional_options_description* m_positional; + + additional_parser m_additional_parser; + style_parser m_style_parser; + }; + + void test_cmdline_detail(); + +}}} + +#if defined(BOOST_MSVC) +# pragma warning (pop) +#endif + +#endif + |