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-rw-r--r--src/boost/format/format_class.hpp135
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-// -*- C++ -*-
-// Boost general library 'format' ---------------------------
-// See http://www.boost.org for updates, documentation, and revision history.
-
-// (C) Samuel Krempp 2001
-// krempp@crans.ens-cachan.fr
-// Permission to copy, use, modify, sell and
-// distribute this software is granted provided this copyright notice appears
-// in all copies. This software is provided "as is" without express or implied
-// warranty, and with no claim as to its suitability for any purpose.
-
-// ideas taken from Rüdiger Loos's format class
-// and Karl Nelson's ofstream (also took its parsing code as basis for printf parsing)
-
-// ------------------------------------------------------------------------------
-// format_class.hpp : class interface
-// ------------------------------------------------------------------------------
-
-
-#ifndef BOOST_FORMAT_CLASS_HPP
-#define BOOST_FORMAT_CLASS_HPP
-
-#include <vector>
-#include <string>
-
-#include <boost/format/format_fwd.hpp>
-#include <boost/format/internals_fwd.hpp>
-
-#include <boost/format/internals.hpp>
-
-namespace boost {
-
-class basic_format
-{
-public:
- typedef std::string string_t;
- typedef BOOST_IO_STD ostringstream internal_stream_t;
-private:
- typedef BOOST_IO_STD ostream stream_t;
- typedef io::detail::stream_format_state stream_format_state;
- typedef io::detail::format_item format_item_t;
-
-public:
- basic_format(const char* str);
- basic_format(const string_t& s);
-#ifndef BOOST_NO_STD_LOCALE
- basic_format(const char* str, const std::locale & loc);
- basic_format(const string_t& s, const std::locale & loc);
-#endif // no locale
- basic_format(const basic_format& x);
- basic_format& operator= (const basic_format& x);
-
- basic_format& clear(); // empty the string buffers (except bound arguments, see clear_binds() )
-
- // pass arguments through those operators :
- template<class T> basic_format& operator%(const T& x)
- {
- return io::detail::feed<const T&>(*this,x);
- }
-
-#ifndef BOOST_NO_OVERLOAD_FOR_NON_CONST
- template<class T> basic_format& operator%(T& x)
- {
- return io::detail::feed<T&>(*this,x);
- }
-#endif
-
-
- // system for binding arguments :
- template<class T>
- basic_format& bind_arg(int argN, const T& val)
- {
- return io::detail::bind_arg_body(*this, argN, val);
- }
- basic_format& clear_bind(int argN);
- basic_format& clear_binds();
-
- // modify the params of a directive, by applying a manipulator :
- template<class T>
- basic_format& modify_item(int itemN, const T& manipulator)
- {
- return io::detail::modify_item_body(*this, itemN, manipulator) ;
- }
-
- // Choosing which errors will throw exceptions :
- unsigned char exceptions() const;
- unsigned char exceptions(unsigned char newexcept);
-
- // final output
- string_t str() const;
- friend BOOST_IO_STD ostream&
- operator<< ( BOOST_IO_STD ostream& , const basic_format& );
-
-
- template<class T> friend basic_format&
- io::detail::feed(basic_format&, T);
-
- template<class T> friend
- void io::detail::distribute(basic_format&, T);
-
- template<class T> friend
- basic_format& io::detail::modify_item_body(basic_format&, int, const T&);
-
- template<class T> friend
- basic_format& io::detail::bind_arg_body(basic_format&, int, const T&);
-
-// make the members private only if the friend templates are supported
-private:
-
- // flag bits, used for style_
- enum style_values { ordered = 1, // set only if all directives are positional directives
- special_needs = 4 };
-
- // parse the format string :
- void parse(const string_t&);
-
- int style_; // style of format-string : positional or not, etc
- int cur_arg_; // keep track of wich argument will come
- int num_args_; // number of expected arguments
- mutable bool dumped_; // true only after call to str() or <<
- std::vector<format_item_t> items_; // vector of directives (aka items)
- string_t prefix_; // piece of string to insert before first item
-
- std::vector<bool> bound_; // stores which arguments were bound
- // size = num_args OR zero
- internal_stream_t oss_; // the internal stream.
- stream_format_state state0_; // reference state for oss_
- unsigned char exceptions_;
-}; // class basic_format
-
-
-} // namespace boost
-
-
-#endif // BOOST_FORMAT_CLASS_HPP