Browse Source

Merge branch 'nix' into 'master'.

gn-latest-20200428
Ludovic Courtès 7 years ago
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Most of the code is this directory was written by several people for
the Nix project (http://nixos.org/nix). Thanks!

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GNU LESSER GENERAL PUBLIC LICENSE
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//
// boost/assert.hpp - BOOST_ASSERT(expr)
//
// Copyright (c) 2001, 2002 Peter Dimov and Multi Media Ltd.
//
// 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.
//
// Note: There are no include guards. This is intentional.
//
// See http://www.boost.org/libs/utility/assert.html for documentation.
//
#undef BOOST_ASSERT
#if defined(BOOST_DISABLE_ASSERTS)
# define BOOST_ASSERT(expr) ((void)0)
#elif defined(BOOST_ENABLE_ASSERT_HANDLER)
#include <boost/current_function.hpp>
namespace boost
{
void assertion_failed(char const * expr, char const * function, char const * file, long line); // user defined
} // namespace boost
#define BOOST_ASSERT(expr) ((expr)? ((void)0): ::boost::assertion_failed(#expr, BOOST_CURRENT_FUNCTION, __FILE__, __LINE__))
#else
# include <assert.h>
# define BOOST_ASSERT(expr) assert(expr)
#endif

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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
// ----------------------------------------------------------------------------
// format.hpp : primary header
// ----------------------------------------------------------------------------
#ifndef BOOST_FORMAT_HPP
#define BOOST_FORMAT_HPP
#include <vector>
#include <string>
#include <sstream>
#include <cassert>
#if HAVE_LOCALE
#include <locale>
#else
#define BOOST_NO_STD_LOCALE
#define BOOST_NO_LOCALE_ISIDIGIT
#include <cctype>
#endif
#include <boost/format/macros_default.hpp>
// **** Forward declarations ----------------------------------
#include <boost/format/format_fwd.hpp> // basic_format<Ch,Tr>, and other frontends
#include <boost/format/internals_fwd.hpp> // misc forward declarations for internal use
// **** Auxiliary structs (stream_format_state<Ch,Tr> , and format_item<Ch,Tr> )
#include <boost/format/internals.hpp>
// **** Format class interface --------------------------------
#include <boost/format/format_class.hpp>
// **** Exceptions -----------------------------------------------
#include <boost/format/exceptions.hpp>
// **** Implementation -------------------------------------------
//#include <boost/format/format_implementation.hpp> // member functions
#include <boost/format/group.hpp> // class for grouping arguments
#include <boost/format/feed_args.hpp> // argument-feeding functions
//#include <boost/format/parsing.hpp> // format-string parsing (member-)functions
// **** Implementation of the free functions ----------------------
//#include <boost/format/free_funcs.hpp>
#endif // BOOST_FORMAT_HPP

+ 96
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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)
// ------------------------------------------------------------------------------
// exceptions.hpp
// ------------------------------------------------------------------------------
#ifndef BOOST_FORMAT_EXCEPTIONS_HPP
#define BOOST_FORMAT_EXCEPTIONS_HPP
#include <stdexcept>
namespace boost {
namespace io {
// **** exceptions -----------------------------------------------
class format_error : public std::exception
{
public:
format_error() {}
virtual const char *what() const throw()
{
return "boost::format_error: "
"format generic failure";
}
};
class bad_format_string : public format_error
{
public:
bad_format_string() {}
virtual const char *what() const throw()
{
return "boost::bad_format_string: "
"format-string is ill-formed";
}
};
class too_few_args : public format_error
{
public:
too_few_args() {}
virtual const char *what() const throw()
{
return "boost::too_few_args: "
"format-string refered to more arguments than were passed";
}
};
class too_many_args : public format_error
{
public:
too_many_args() {}
virtual const char *what() const throw()
{
return "boost::too_many_args: "
"format-string refered to less arguments than were passed";
}
};
class out_of_range : public format_error
{
public:
out_of_range() {}
virtual const char *what() const throw()
{
return "boost::out_of_range: "
"tried to refer to an argument (or item) number which is out of range, "
"according to the format string.";
}
};
} // namespace io
} // namespace boost
#endif // BOOST_FORMAT_EXCEPTIONS_HPP

+ 247
- 0
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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
// ----------------------------------------------------------------------------
// feed_args.hpp : functions for processing each argument
// (feed, feed_manip, and distribute)
// ----------------------------------------------------------------------------
#ifndef BOOST_FORMAT_FEED_ARGS_HPP
#define BOOST_FORMAT_FEED_ARGS_HPP
#include "boost/format/format_class.hpp"
#include "boost/format/group.hpp"
#include "boost/throw_exception.hpp"
namespace boost {
namespace io {
namespace detail {
namespace {
inline
void empty_buf(BOOST_IO_STD ostringstream & os) {
static const std::string emptyStr;
os.str(emptyStr);
}
void do_pad( std::string & s,
std::streamsize w,
const char c,
std::ios::fmtflags f,
bool center)
// applies centered / left / right padding to the string s.
// Effects : string s is padded.
{
std::streamsize n=w-s.size();
if(n<=0) {
return;
}
if(center)
{
s.reserve(w); // allocate once for the 2 inserts
const std::streamsize n1 = n /2, n0 = n - n1;
s.insert(s.begin(), n0, c);
s.append(n1, c);
}
else
{
if(f & std::ios::left) {
s.append(n, c);
}
else {
s.insert(s.begin(), n, c);
}
}
} // -do_pad(..)
template<class T> inline
void put_head(BOOST_IO_STD ostream& , const T& ) {
}
template<class T> inline
void put_head( BOOST_IO_STD ostream& os, const group1<T>& x ) {
os << group_head(x.a1_); // send the first N-1 items, not the last
}
template<class T> inline
void put_last( BOOST_IO_STD ostream& os, const T& x ) {
os << x ;
}
template<class T> inline
void put_last( BOOST_IO_STD ostream& os, const group1<T>& x ) {
os << group_last(x.a1_); // this selects the last element
}
#ifndef BOOST_NO_OVERLOAD_FOR_NON_CONST
template<class T> inline
void put_head( BOOST_IO_STD ostream& , T& ) {
}
template<class T> inline
void put_last( BOOST_IO_STD ostream& os, T& x ) {
os << x ;
}
#endif
template<class T>
void put( T x,
const format_item& specs,
std::string & res,
BOOST_IO_STD ostringstream& oss_ )
{
// does the actual conversion of x, with given params, into a string
// using the *supplied* strinstream. (the stream state is important)
typedef std::string string_t;
typedef format_item format_item_t;
stream_format_state prev_state(oss_);
specs.state_.apply_on(oss_);
// in case x is a group, apply the manip part of it,
// in order to find width
put_head( oss_, x );
empty_buf( oss_);
const std::streamsize w=oss_.width();
const std::ios::fmtflags fl=oss_.flags();
const bool internal = (fl & std::ios::internal) != 0;
const bool two_stepped_padding = internal
&& ! ( specs.pad_scheme_ & format_item_t::spacepad )
&& specs.truncate_ < 0 ;
if(! two_stepped_padding)
{
if(w>0) // handle simple padding via do_pad, not natively in stream
oss_.width(0);
put_last( oss_, x);
res = oss_.str();
if (specs.truncate_ >= 0)
res.erase(specs.truncate_);
// complex pads :
if(specs.pad_scheme_ & format_item_t::spacepad)
{
if( res.size()==0 || ( res[0]!='+' && res[0]!='-' ))
{
res.insert(res.begin(), 1, ' '); // insert 1 space at pos 0
}
}
if(w > 0) // need do_pad
{
do_pad(res,w,oss_.fill(), fl, (specs.pad_scheme_ & format_item_t::centered) !=0 );
}
}
else // 2-stepped padding
{
put_last( oss_, x); // oss_.width() may result in padding.
res = oss_.str();
if (specs.truncate_ >= 0)
res.erase(specs.truncate_);
if( res.size() - w > 0)
{ // length w exceeded
// either it was multi-output with first output padding up all width..
// either it was one big arg and we are fine.
empty_buf( oss_);
oss_.width(0);
put_last(oss_, x );
string_t tmp = oss_.str(); // minimal-length output
std::streamsize d;
if( (d=w - tmp.size()) <=0 )
{
// minimal length is already >= w, so no padding (cool!)
res.swap(tmp);
}
else
{ // hum.. we need to pad (it was necessarily multi-output)
typedef typename string_t::size_type size_type;
size_type i = 0;
while( i<tmp.size() && tmp[i] == res[i] ) // find where we should pad.
++i;
tmp.insert(i, static_cast<size_type>( d ), oss_.fill());
res.swap( tmp );
}
}
else
{ // okay, only one thing was printed and padded, so res is fine.
}
}
prev_state.apply_on(oss_);
empty_buf( oss_);
oss_.clear();
} // end- put(..)
} // local namespace
template<class T>
void distribute(basic_format& self, T x)
// call put(x, ..) on every occurence of the current argument :
{
if(self.cur_arg_ >= self.num_args_)
{
if( self.exceptions() & too_many_args_bit )
boost::throw_exception(too_many_args()); // too many variables have been supplied !
else return;
}
for(unsigned long i=0; i < self.items_.size(); ++i)
{
if(self.items_[i].argN_ == self.cur_arg_)
{
put<T> (x, self.items_[i], self.items_[i].res_, self.oss_ );
}
}
}
template<class T>
basic_format& feed(basic_format& self, T x)
{
if(self.dumped_) self.clear();
distribute<T> (self, x);
++self.cur_arg_;
if(self.bound_.size() != 0)
{
while( self.cur_arg_ < self.num_args_ && self.bound_[self.cur_arg_] )
++self.cur_arg_;
}
// this arg is finished, reset the stream's format state
self.state0_.apply_on(self.oss_);
return self;
}
} // namespace detail
} // namespace io
} // namespace boost
#endif // BOOST_FORMAT_FEED_ARGS_HPP

+ 135
- 0
nix/boost/format/format_class.hpp View File

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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

+ 49
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nix/boost/format/format_fwd.hpp View File

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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_fwd.hpp : forward declarations, for primary header format.hpp
// ------------------------------------------------------------------------------
#ifndef BOOST_FORMAT_FWD_HPP
#define BOOST_FORMAT_FWD_HPP
#include <string>
#include <iosfwd>
namespace boost {
class basic_format;
typedef basic_format format;
namespace io {
enum format_error_bits { bad_format_string_bit = 1,
too_few_args_bit = 2, too_many_args_bit = 4,
out_of_range_bit = 8,
all_error_bits = 255, no_error_bits=0 };
// Convertion: format to string
std::string str(const basic_format& ) ;
} // namespace io
BOOST_IO_STD ostream&
operator<<( BOOST_IO_STD ostream&, const basic_format&);
} // namespace boost
#endif // BOOST_FORMAT_FWD_HPP

+ 256
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nix/boost/format/format_implementation.cc View File

@ -0,0 +1,256 @@
// -*- 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
// ----------------------------------------------------------------------------
// format_implementation.hpp Implementation of the basic_format class
// ----------------------------------------------------------------------------
#ifndef BOOST_FORMAT_IMPLEMENTATION_HPP
#define BOOST_FORMAT_IMPLEMENTATION_HPP
#include <boost/throw_exception.hpp>
#include <boost/assert.hpp>
#include <boost/format.hpp>
namespace boost {
// -------- format:: -------------------------------------------
basic_format::basic_format(const char* str)
: style_(0), cur_arg_(0), num_args_(0), dumped_(false),
items_(), oss_(), exceptions_(io::all_error_bits)
{
state0_.set_by_stream(oss_);
string_t emptyStr;
if( !str) str = emptyStr.c_str();
parse( str );
}
#ifndef BOOST_NO_STD_LOCALE
basic_format::basic_format(const char* str, const std::locale & loc)
: style_(0), cur_arg_(0), num_args_(0), dumped_(false),
items_(), oss_(), exceptions_(io::all_error_bits)
{
oss_.imbue( loc );
state0_.set_by_stream(oss_);
string_t emptyStr;
if( !str) str = emptyStr.c_str();
parse( str );
}
basic_format::basic_format(const string_t& s, const std::locale & loc)
: style_(0), cur_arg_(0), num_args_(0), dumped_(false),
items_(), oss_(), exceptions_(io::all_error_bits)
{
oss_.imbue( loc );
state0_.set_by_stream(oss_);
parse(s);
}
#endif //BOOST_NO_STD_LOCALE
basic_format::basic_format(const string_t& s)
: style_(0), cur_arg_(0), num_args_(0), dumped_(false),
items_(), oss_(), exceptions_(io::all_error_bits)
{
state0_.set_by_stream(oss_);
parse(s);
}
basic_format:: basic_format(const basic_format& x)
: style_(x.style_), cur_arg_(x.cur_arg_), num_args_(x.num_args_), dumped_(false),
items_(x.items_), prefix_(x.prefix_), bound_(x.bound_),
oss_(), // <- we obviously can't copy x.oss_
state0_(x.state0_), exceptions_(x.exceptions_)
{
state0_.apply_on(oss_);
}
basic_format& basic_format::operator= (const basic_format& x)
{
if(this == &x)
return *this;
state0_ = x.state0_;
state0_.apply_on(oss_);
// plus all the other (trivial) assignments :
exceptions_ = x.exceptions_;
items_ = x.items_;
prefix_ = x.prefix_;
bound_=x.bound_;
style_=x.style_;
cur_arg_=x.cur_arg_;
num_args_=x.num_args_;
dumped_=x.dumped_;
return *this;
}
unsigned char basic_format::exceptions() const
{
return exceptions_;
}
unsigned char basic_format::exceptions(unsigned char newexcept)
{
unsigned char swp = exceptions_;
exceptions_ = newexcept;
return swp;
}
basic_format& basic_format ::clear()
// empty the string buffers (except bound arguments, see clear_binds() )
// 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){
items_[i].state_ = items_[i].ref_state_;
// clear converted strings only if the corresponding argument is not bound :
if( bound_.size()==0 || !bound_[ items_[i].argN_ ] ) items_[i].res_.resize(0);
}
cur_arg_=0; dumped_=false;
// maybe first arg is bound:
if(bound_.size() != 0)
{
while(cur_arg_ < num_args_ && bound_[cur_arg_] ) ++cur_arg_;
}
return *this;
}
basic_format& basic_format ::clear_binds()
// cancel all bindings, and clear()
{
bound_.resize(0);
clear();
return *this;
}
basic_format& basic_format::clear_bind(int argN)
// cancel the binding of ONE argument, and 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()); // arg not in range.
else return *this;
}
bound_[argN-1]=false;
clear();
return *this;
}
std::string basic_format::str() const
{
dumped_=true;
if(items_.size()==0)
return prefix_;
if( cur_arg_ < num_args_)
if( exceptions() & io::too_few_args_bit )
boost::throw_exception(io::too_few_args()); // not enough variables have been supplied !
unsigned long sz = prefix_.size();
unsigned long i;
for(i=0; i < items_.size(); ++i)
sz += items_[i].res_.size() + items_[i].appendix_.size();
string_t res;
res.reserve(sz);
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);
std::streamsize n = item.state_.width_ - res.size();
if( n > 0 )
res.append( n, item.state_.fill_ );
}
res += item.appendix_;
}
return res;
}
namespace io {
namespace detail {
template<class T>
basic_format& bind_arg_body( basic_format& 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()); // arg not in range.
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 a non-binded arg :
BOOST_ASSERT( self.cur_arg_ >= self.num_args_ || ! self.bound_[self.cur_arg_]);
return self;
}
template<class T>
basic_format& modify_item_body( basic_format& self,
int itemN,
const T& manipulator)
// applies a manipulator to the format_item describing a given directive.
// this is a permanent change, clear or clear_binds 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()); // item not in range.
else return self;
}
self.items_[itemN-1].ref_state_.apply_manip( manipulator );
self.items_[itemN-1].state_ = self.items_[itemN-1].ref_state_;
return self;
}
} // namespace detail
} // namespace io
} // namespace boost
#endif // BOOST_FORMAT_IMPLEMENTATION_HPP

+ 71
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nix/boost/format/free_funcs.cc View File

@ -0,0 +1,71 @@
// -*- 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)
// ------------------------------------------------------------------------------
// free_funcs.hpp : implementation of the free functions declared in namespace format
// ------------------------------------------------------------------------------
#ifndef BOOST_FORMAT_FUNCS_HPP
#define BOOST_FORMAT_FUNCS_HPP
#include "boost/format.hpp"
#include "boost/throw_exception.hpp"
namespace boost {
namespace io {
inline
std::string str(const basic_format& f)
// adds up all pieces of strings and converted items, and return the formatted string
{
return f.str();
}
} // - namespace io
BOOST_IO_STD ostream&
operator<<( BOOST_IO_STD ostream& os,
const boost::basic_format& f)
// effect: "return os << str(f);" but we can try to do it faster
{
typedef boost::basic_format format_t;
if(f.items_.size()==0)
os << f.prefix_;
else {
if(f.cur_arg_ < f.num_args_)
if( f.exceptions() & io::too_few_args_bit )
boost::throw_exception(io::too_few_args()); // not enough variables have been supplied !
if(f.style_ & format_t::special_needs)
os << f.str();
else {
// else we dont have to count chars output, so we dump directly to os :
os << f.prefix_;
for(unsigned long i=0; i<f.items_.size(); ++i)
{
const format_t::format_item_t& item = f.items_[i];
os << item.res_;
os << item.appendix_;
}
}
}
f.dumped_=true;
return os;
}
} // namespace boost
#endif // BOOST_FORMAT_FUNCS_HPP

+ 680
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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
// ----------------------------------------------------------------------------
// group.hpp : encapsulates a group of manipulators along with an argument
//
// group_head : cut the last element of a group out.
// (is overloaded below on each type of group)
// group_last : returns the last element of a group
// (is overloaded below on each type of group)
// ----------------------------------------------------------------------------
#ifndef BOOST_FORMAT_GROUP_HPP
#define BOOST_FORMAT_GROUP_HPP
namespace boost {
namespace io {
namespace detail {
// empty group, but useful even though.
struct group0
{
group0() {}
};
template <class Ch, class Tr>
inline
BOOST_IO_STD ostream&
operator << ( BOOST_IO_STD ostream& os,
const group0& )
{
return os;
}
template <class T1>
struct group1
{
T1 a1_;
group1(T1 a1)
: a1_(a1)
{}
};
template <class Ch, class Tr, class T1>
inline
BOOST_IO_STD ostream&
operator << (BOOST_IO_STD ostream& os,
const group1<T1>& x)
{
os << x.a1_;
return os;
}
template <class T1,class T2>
struct group2
{
T1 a1_;
T2 a2_;
group2(T1 a1,T2 a2)
: a1_(a1),a2_(a2)
{}
};
template <class Ch, class Tr, class T1,class T2>
inline
BOOST_IO_STD ostream&
operator << (BOOST_IO_STD ostream& os,
const group2<T1,T2>& x)
{
os << x.a1_<< x.a2_;
return os;
}
template <class T1,class T2,class T3>
struct group3
{
T1 a1_;
T2 a2_;
T3 a3_;
group3(T1 a1,T2 a2,T3 a3)
: a1_(a1),a2_(a2),a3_(a3)
{}
};
template <class Ch, class Tr, class T1,class T2,class T3>
inline
BOOST_IO_STD ostream&
operator << (BOOST_IO_STD ostream& os,
const group3<T1,T2,T3>& x)
{
os << x.a1_<< x.a2_<< x.a3_;
return os;
}
template <class T1,class T2,class T3,class T4>
struct group4
{
T1 a1_;
T2 a2_;
T3 a3_;
T4 a4_;
group4(T1 a1,T2 a2,T3 a3,T4 a4)
: a1_(a1),a2_(a2),a3_(a3),a4_(a4)
{}
};
template <class Ch, class Tr, class T1,class T2,class T3,class T4>
inline
BOOST_IO_STD ostream&
operator << (BOOST_IO_STD ostream& os,
const group4<T1,T2,T3,T4>& x)
{
os << x.a1_<< x.a2_<< x.a3_<< x.a4_;
return os;
}
template <class T1,class T2,class T3,class T4,class T5>
struct group5
{
T1 a1_;
T2 a2_;
T3 a3_;
T4 a4_;
T5 a5_;
group5(T1 a1,T2 a2,T3 a3,T4 a4,T5 a5)
: a1_(a1),a2_(a2),a3_(a3),a4_(a4),a5_(a5)
{}
};
template <class Ch, class Tr, class T1,class T2,class T3,class T4,class T5>
inline
BOOST_IO_STD ostream&
operator << (BOOST_IO_STD ostream& os,
const group5<T1,T2,T3,T4,T5>& x)
{
os << x.a1_<< x.a2_<< x.a3_<< x.a4_<< x.a5_;
return os;
}
template <class T1,class T2,class T3,class T4,class T5,class T6>
struct group6
{
T1 a1_;
T2 a2_;
T3 a3_;
T4 a4_;
T5 a5_;
T6 a6_;
group6(T1 a1,T2 a2,T3 a3,T4 a4,T5 a5,T6 a6)
: a1_(a1),a2_(a2),a3_(a3),a4_(a4),a5_(a5),a6_(a6)
{}
};
template <class Ch, class Tr, class T1,class T2,class T3,class T4,class T5,class T6>
inline
BOOST_IO_STD ostream&
operator << (BOOST_IO_STD ostream& os,
const group6<T1,T2,T3,T4,T5,T6>& x)
{
os << x.a1_<< x.a2_<< x.a3_<< x.a4_<< x.a5_<< x.a6_;
return os;
}
template <class T1,class T2,class T3,class T4,class T5,class T6,class T7>
struct group7
{
T1 a1_;
T2 a2_;
T3 a3_;
T4 a4_;
T5 a5_;
T6 a6_;
T7 a7_;
group7(T1 a1,T2 a2,T3 a3,T4 a4,T5 a5,T6 a6,T7 a7)
: a1_(a1),a2_(a2),a3_(a3),a4_(a4),a5_(a5),a6_(a6),a7_(a7)
{}
};
template <class Ch, class Tr, class T1,class T2,class T3,class T4,class T5,class T6,class T7>
inline
BOOST_IO_STD ostream&
operator << (BOOST_IO_STD ostream& os,
const group7<T1,T2,T3,T4,T5,T6,T7>& x)
{
os << x.a1_<< x.a2_<< x.a3_<< x.a4_<< x.a5_<< x.a6_<< x.a7_;
return os;
}
template <class T1,class T2,class T3,class T4,class T5,class T6,class T7,class T8>
struct group8
{
T1 a1_;
T2 a2_;
T3 a3_;
T4 a4_;
T5 a5_;
T6 a6_;
T7 a7_;
T8 a8_;
group8(T1 a1,T2 a2,T3 a3,T4 a4,T5 a5,T6 a6,T7 a7,T8 a8)
: a1_(a1),a2_(a2),a3_(a3),a4_(a4),a5_(a5),a6_(a6),a7_(a7),a8_(a8)
{}
};
template <class Ch, class Tr, class T1,class T2,class T3,class T4,class T5,class T6,class T7,class T8>
inline
BOOST_IO_STD ostream&
operator << (BOOST_IO_STD ostream& os,
const group8<T1,T2,T3,T4,T5,T6,T7,T8>& x)
{
os << x.a1_<< x.a2_<< x.a3_<< x.a4_<< x.a5_<< x.a6_<< x.a7_<< x.a8_;
return os;
}
template <class T1,class T2,class T3,class T4,class T5,class T6,class T7,class T8,class T9>
struct group9
{
T1 a1_;
T2 a2_;
T3 a3_;
T4 a4_;
T5 a5_;
T6 a6_;
T7 a7_;
T8 a8_;
T9 a9_;
group9(T1 a1,T2 a2,T3 a3,T4 a4,T5 a5,T6 a6,T7 a7,T8 a8,T9 a9)
: a1_(a1),a2_(a2),a3_(a3),a4_(a4),a5_(a5),a6_(a6),a7_(a7),a8_(a8),a9_(a9)
{}
};
template <class Ch, class Tr, class T1,class T2,class T3,class T4,class T5,class T6,class T7,class T8,class T9>
inline
BOOST_IO_STD ostream&
operator << (BOOST_IO_STD ostream& os,
const group9<T1,T2,T3,T4,T5,T6,T7,T8,T9>& x)
{
os << x.a1_<< x.a2_<< x.a3_<< x.a4_<< x.a5_<< x.a6_<< x.a7_<< x.a8_<< x.a9_;
return os;
}
template <class T1,class T2,class T3,class T4,class T5,class T6,class T7,class T8,class T9,class T10>
struct group10