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Diffstat (limited to '3rdParty/Boost/src/boost/format/format_implementation.hpp')
-rw-r--r-- | 3rdParty/Boost/src/boost/format/format_implementation.hpp | 329 |
1 files changed, 329 insertions, 0 deletions
diff --git a/3rdParty/Boost/src/boost/format/format_implementation.hpp b/3rdParty/Boost/src/boost/format/format_implementation.hpp new file mode 100644 index 0000000..2abb5c4 --- /dev/null +++ b/3rdParty/Boost/src/boost/format/format_implementation.hpp @@ -0,0 +1,329 @@ +// ---------------------------------------------------------------------------- +// format_implementation.hpp Implementation of the basic_format class +// ---------------------------------------------------------------------------- + +// Copyright Samuel Krempp 2003. Use, modification, and distribution are +// subject to 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) + +// See http://www.boost.org/libs/format for library home page + + +// ---------------------------------------------------------------------------- + +#ifndef BOOST_FORMAT_IMPLEMENTATION_HPP +#define BOOST_FORMAT_IMPLEMENTATION_HPP + +#include <boost/config.hpp> +#include <boost/throw_exception.hpp> +#include <boost/assert.hpp> +#include <boost/format/format_class.hpp> +#include <algorithm> // std::swap + +namespace boost { + +// --- basic_format implementation -----------------------------------------// + + template< class Ch, class Tr, class Alloc> + basic_format<Ch, Tr, Alloc>:: basic_format(const Ch* s) + : style_(0), cur_arg_(0), num_args_(0), dumped_(false), + exceptions_(io::all_error_bits) + { + if( s) + parse( s ); + } + +#if !defined(BOOST_NO_STD_LOCALE) + template< class Ch, class Tr, class Alloc> + basic_format<Ch, Tr, Alloc>:: basic_format(const Ch* s, const std::locale & loc) + : style_(0), cur_arg_(0), num_args_(0), dumped_(false), + exceptions_(io::all_error_bits), loc_(loc) + { + if(s) parse( s ); + } + + template< class Ch, class Tr, class Alloc> + basic_format<Ch, Tr, Alloc>:: basic_format(const string_type& s, const std::locale & loc) + : style_(0), cur_arg_(0), num_args_(0), dumped_(false), + exceptions_(io::all_error_bits), loc_(loc) + { + parse(s); + } +#endif // ! BOOST_NO_STD_LOCALE + template< class Ch, class Tr, class Alloc> + io::detail::locale_t basic_format<Ch, Tr, Alloc>:: + getloc() const { + return loc_ ? loc_.get() : io::detail::locale_t(); + } + + template< class Ch, class Tr, class Alloc> + basic_format<Ch, Tr, Alloc>:: basic_format(const string_type& s) + : style_(0), cur_arg_(0), num_args_(0), dumped_(false), + exceptions_(io::all_error_bits) + { + parse(s); + } + + template< class Ch, class Tr, class Alloc> // just don't copy the buf_ member + basic_format<Ch, Tr, Alloc>:: basic_format(const basic_format& x) + : items_(x.items_), bound_(x.bound_), style_(x.style_), + cur_arg_(x.cur_arg_), num_args_(x.num_args_), dumped_(x.dumped_), + prefix_(x.prefix_), exceptions_(x.exceptions_), loc_(x.loc_) + { + } + + template< class Ch, class Tr, class Alloc> // just don't copy the buf_ member + basic_format<Ch, Tr, Alloc>& basic_format<Ch, Tr, Alloc>:: + operator= (const basic_format& x) { + if(this == &x) + return *this; + (basic_format<Ch, Tr, Alloc>(x)).swap(*this); + return *this; + } + template< class Ch, class Tr, class Alloc> + void basic_format<Ch, Tr, Alloc>:: + swap (basic_format & x) { + std::swap(exceptions_, x.exceptions_); + std::swap(style_, x.style_); + std::swap(cur_arg_, x.cur_arg_); + std::swap(num_args_, x.num_args_); + std::swap(dumped_, x.dumped_); + + items_.swap(x.items_); + prefix_.swap(x.prefix_); + bound_.swap(x.bound_); + } + + template< class Ch, class Tr, class Alloc> + unsigned char basic_format<Ch,Tr, Alloc>:: exceptions() const { + return exceptions_; + } + + template< class Ch, class Tr, class Alloc> + unsigned char basic_format<Ch,Tr, Alloc>:: exceptions(unsigned char newexcept) { + unsigned char swp = exceptions_; + exceptions_ = newexcept; + return swp; + } + + template<class Ch, class Tr, class Alloc> + void basic_format<Ch, Tr, Alloc>:: + make_or_reuse_data (std::size_t nbitems) { +#if !defined(BOOST_NO_STD_LOCALE) + Ch fill = ( BOOST_USE_FACET(std::ctype<Ch>, getloc()) ). widen(' '); +#else + Ch fill = ' '; +#endif + if(items_.size() == 0) + items_.assign( nbitems, format_item_t(fill) ); + else { + if(nbitems>items_.size()) + items_.resize(nbitems, format_item_t(fill)); + bound_.resize(0); + for(std::size_t i=0; i < nbitems; ++i) + items_[i].reset(fill); // strings are resized, instead of reallocated + } + prefix_.resize(0); + } + + template< class Ch, class Tr, class Alloc> + basic_format<Ch,Tr, Alloc>& basic_format<Ch,Tr, Alloc>:: + clear () { + // empty the string buffers (except bound arguments) + // and make the format object ready for formatting a new set of arguments + + BOOST_ASSERT( bound_.size()==0 || num_args_ == static_cast<int>(bound_.size()) ); + + for(unsigned long i=0; i<items_.size(); ++i) { + // clear converted strings only if the corresponding argument is not bound : + if( bound_.size()==0 || items_[i].argN_<0 || !bound_[ items_[i].argN_ ] ) + items_[i].res_.resize(0); + } + cur_arg_=0; dumped_=false; + // maybe first arg is bound: + if(bound_.size() != 0) { + for(; cur_arg_ < num_args_ && bound_[cur_arg_]; ++cur_arg_) + {} + } + return *this; + } + + template< class Ch, class Tr, class Alloc> + basic_format<Ch,Tr, Alloc>& basic_format<Ch,Tr, Alloc>:: + clear_binds () { + // remove all binds, then clear() + bound_.resize(0); + clear(); + return *this; + } + + template< class Ch, class Tr, class Alloc> + basic_format<Ch,Tr, Alloc>& basic_format<Ch,Tr, Alloc>:: + clear_bind (int argN) { + // remove the bind of ONE argument then clear() + if(argN<1 || argN > num_args_ || bound_.size()==0 || !bound_[argN-1] ) { + if( exceptions() & io::out_of_range_bit) + boost::throw_exception(io::out_of_range(argN, 1, num_args_+1 ) ); + else return *this; + } + bound_[argN-1]=false; + clear(); + return *this; + } + + template< class Ch, class Tr, class Alloc> + int basic_format<Ch,Tr, Alloc>:: + bound_args() const { + if(bound_.size()==0) + return 0; + int n=0; + for(int i=0; i<num_args_ ; ++i) + if(bound_[i]) + ++n; + return n; + } + + template< class Ch, class Tr, class Alloc> + int basic_format<Ch,Tr, Alloc>:: + fed_args() const { + if(bound_.size()==0) + return cur_arg_; + int n=0; + for(int i=0; i<cur_arg_ ; ++i) + if(!bound_[i]) + ++n; + return n; + } + + template< class Ch, class Tr, class Alloc> + int basic_format<Ch,Tr, Alloc>:: + cur_arg() const { + return cur_arg_+1; } + + template< class Ch, class Tr, class Alloc> + int basic_format<Ch,Tr, Alloc>:: + remaining_args() const { + if(bound_.size()==0) + return num_args_-cur_arg_; + int n=0; + for(int i=cur_arg_; i<num_args_ ; ++i) + if(!bound_[i]) + ++n; + return n; + } + + template< class Ch, class Tr, class Alloc> + typename basic_format<Ch, Tr, Alloc>::string_type + basic_format<Ch,Tr, Alloc>:: + str () const { + if(items_.size()==0) + return prefix_; + if( cur_arg_ < num_args_) + if( exceptions() & io::too_few_args_bit ) + // not enough variables supplied + boost::throw_exception(io::too_few_args(cur_arg_, num_args_)); + + unsigned long i; + string_type res; + res.reserve(size()); + res += prefix_; + for(i=0; i < items_.size(); ++i) { + const format_item_t& item = items_[i]; + res += item.res_; + if( item.argN_ == format_item_t::argN_tabulation) { + BOOST_ASSERT( item.pad_scheme_ & format_item_t::tabulation); + if( static_cast<size_type>(item.fmtstate_.width_) > res.size() ) + res.append( static_cast<size_type>(item.fmtstate_.width_) - res.size(), + item.fmtstate_.fill_ ); + } + res += item.appendix_; + } + dumped_=true; + return res; + } + template< class Ch, class Tr, class Alloc> + typename std::basic_string<Ch, Tr, Alloc>::size_type basic_format<Ch,Tr, Alloc>:: + size () const { +#ifdef BOOST_MSVC + // If std::min<unsigned> or std::max<unsigned> are already instantiated + // at this point then we get a blizzard of warning messages when we call + // those templates with std::size_t as arguments. Weird and very annoyning... +#pragma warning(push) +#pragma warning(disable:4267) +#endif + BOOST_USING_STD_MAX(); + size_type sz = prefix_.size(); + unsigned long i; + for(i=0; i < items_.size(); ++i) { + const format_item_t& item = items_[i]; + sz += item.res_.size(); + if( item.argN_ == format_item_t::argN_tabulation) + sz = max BOOST_PREVENT_MACRO_SUBSTITUTION (sz, + static_cast<size_type>(item.fmtstate_.width_) ); + sz += item.appendix_.size(); + } + return sz; +#ifdef BOOST_MSVC +#pragma warning(pop) +#endif + } + +namespace io { +namespace detail { + + template<class Ch, class Tr, class Alloc, class T> + basic_format<Ch, Tr, Alloc>& + bind_arg_body (basic_format<Ch, Tr, Alloc>& self, int argN, const T& val) { + // bind one argument to a fixed value + // this is persistent over clear() calls, thus also over str() and << + if(self.dumped_) + self.clear(); // needed because we will modify cur_arg_ + if(argN<1 || argN > self.num_args_) { + if( self.exceptions() & io::out_of_range_bit ) + boost::throw_exception(io::out_of_range(argN, 1, self.num_args_+1 ) ); + else return self; + } + if(self.bound_.size()==0) + self.bound_.assign(self.num_args_,false); + else + BOOST_ASSERT( self.num_args_ == static_cast<signed int>(self.bound_.size()) ); + int o_cur_arg = self.cur_arg_; + self.cur_arg_ = argN-1; // arrays begin at 0 + + self.bound_[self.cur_arg_]=false; // if already set, we unset and re-sets.. + self.operator%(val); // put val at the right place, because cur_arg is set + + + // Now re-position cur_arg before leaving : + self.cur_arg_ = o_cur_arg; + self.bound_[argN-1]=true; + if(self.cur_arg_ == argN-1 ) { + // hum, now this arg is bound, so move to next free arg + while(self.cur_arg_ < self.num_args_ && self.bound_[self.cur_arg_]) + ++self.cur_arg_; + } + // In any case, we either have all args, or are on an unbound arg : + BOOST_ASSERT( self.cur_arg_ >= self.num_args_ || ! self.bound_[self.cur_arg_]); + return self; + } + + template<class Ch, class Tr, class Alloc, class T> basic_format<Ch, Tr, Alloc>& + modify_item_body (basic_format<Ch, Tr, Alloc>& self, int itemN, T manipulator) { + // applies a manipulator to the format_item describing a given directive. + // this is a permanent change, clear or reset won't cancel that. + if(itemN<1 || itemN > static_cast<signed int>(self.items_.size() )) { + if( self.exceptions() & io::out_of_range_bit ) + boost::throw_exception(io::out_of_range(itemN, 1, static_cast<int>(self.items_.size()) )); + else return self; + } + self.items_[itemN-1].fmtstate_. template apply_manip<T> ( manipulator ); + return self; + } + +} // namespace detail +} // namespace io +} // namespace boost + + + +#endif // BOOST_FORMAT_IMPLEMENTATION_HPP |