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71 lines
2.6 KiB
C++
71 lines
2.6 KiB
C++
// ----------------------------------------------------------------------------
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// free_funcs.hpp : implementation of the free functions of boost::format
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// ----------------------------------------------------------------------------
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// Copyright Samuel Krempp 2003. Use, modification, and distribution are
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// subject to the Boost Software License, Version 1.0. (See accompanying
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// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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// See http://www.boost.org/libs/format for library home page
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// ----------------------------------------------------------------------------
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#ifndef BOOST_FORMAT_FUNCS_HPP
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#define BOOST_FORMAT_FUNCS_HPP
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#include <boost/format/format_class.hpp>
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#include <boost/throw_exception.hpp>
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namespace boost {
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template<class Ch, class Tr, class Alloc> inline
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std::basic_string<Ch, Tr, Alloc> str(const basic_format<Ch, Tr, Alloc>& f) {
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// adds up all pieces of strings and converted items, and return the formatted string
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return f.str();
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}
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namespace io {
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using ::boost::str; // keep compatibility with when it was defined in this N.S.
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} // - namespace io
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#ifndef BOOST_NO_TEMPLATE_STD_STREAM
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template<class Ch, class Tr, class Alloc>
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std::basic_ostream<Ch, Tr> &
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operator<<( std::basic_ostream<Ch, Tr> & os,
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const basic_format<Ch, Tr, Alloc>& f)
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#else
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template<class Ch, class Tr, class Alloc>
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std::ostream &
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operator<<( std::ostream & os,
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const basic_format<Ch, Tr, Alloc>& f)
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#endif
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// effect: "return os << str(f);" but we can do it faster
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{
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typedef boost::basic_format<Ch, Tr, Alloc> format_t;
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if(f.items_.size()==0)
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os << f.prefix_;
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else {
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if(f.cur_arg_ < f.num_args_)
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if( f.exceptions() & io::too_few_args_bit )
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// not enough variables supplied
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boost::throw_exception(io::too_few_args(f.cur_arg_, f.num_args_));
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if(f.style_ & format_t::special_needs)
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os << f.str();
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else {
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// else we dont have to count chars output, so we dump directly to os :
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os << f.prefix_;
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for(unsigned long i=0; i<f.items_.size(); ++i) {
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const typename format_t::format_item_t& item = f.items_[i];
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os << item.res_;
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os << item.appendix_;
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}
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}
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}
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f.dumped_=true;
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return os;
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}
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} // namespace boost
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#endif // BOOST_FORMAT_FUNCS_HPP
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