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// Boost string_algo library formatter.hpp header file ---------------------------//
// Copyright Pavol Droba 2002-2003.
//
// 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)
// See http://www.boost.org/ for updates, documentation, and revision history.
#ifndef BOOST_STRING_FORMATTER_HPP
#define BOOST_STRING_FORMATTER_HPP
#include <boost/detail/iterator.hpp>
#include <boost/range/value_type.hpp>
#include <boost/range/iterator_range.hpp>
#include <boost/range/as_literal.hpp>
#include <boost/algorithm/string/detail/formatter.hpp>
/*! \file
Defines Formatter generators. Formatter is a functor which formats
a string according to given parameters. A Formatter works
in conjunction with a Finder. A Finder can provide additional information
for a specific Formatter. An example of such a cooperation is regex_finder
and regex_formatter.
Formatters are used as pluggable components for replace facilities.
This header contains generator functions for the Formatters provided in this library.
*/
namespace boost {
namespace algorithm {
// generic formatters ---------------------------------------------------------------//
//! Constant formatter
/*!
Constructs a \c const_formatter. Const formatter always returns
the same value, regardless of the parameter.
\param Format A predefined value used as a result for formating
\return An instance of the \c const_formatter object.
*/
template<typename RangeT>
inline detail::const_formatF<
iterator_range<
BOOST_STRING_TYPENAME range_const_iterator<RangeT>::type> >
const_formatter(const RangeT& Format)
{
return detail::const_formatF<
iterator_range<
BOOST_STRING_TYPENAME range_const_iterator<RangeT>::type> >(::boost::as_literal(Format));
}
//! Identity formatter
/*!
Constructs an \c identity_formatter. Identity formatter always returns
the parameter.
\return An instance of the \c identity_formatter object.
*/
template<typename RangeT>
inline detail::identity_formatF<
iterator_range<
BOOST_STRING_TYPENAME range_const_iterator<RangeT>::type> >
identity_formatter()
{
return detail::identity_formatF<
iterator_range<
BOOST_STRING_TYPENAME range_const_iterator<RangeT>::type> >();
}
//! Empty formatter
/*!
Constructs an \c empty_formatter. Empty formatter always returns an empty
sequence.
\param Input container used to select a correct value_type for the
resulting empty_container<>.
\return An instance of the \c empty_formatter object.
*/
template<typename RangeT>
inline detail::empty_formatF<
BOOST_STRING_TYPENAME range_value<RangeT>::type>
empty_formatter(const RangeT&)
{
return detail::empty_formatF<
BOOST_STRING_TYPENAME range_value<RangeT>::type>();
}
//! Empty formatter
/*!
Constructs a \c dissect_formatter. Dissect formatter uses a specified finder
to extract a portion of the formatted sequence. The first finder's match is returned
as a result
\param Finder a finder used to select a portion of the formated sequence
\return An instance of the \c dissect_formatter object.
*/
template<typename FinderT>
inline detail::dissect_formatF< FinderT >
dissect_formatter(const FinderT& Finder)
{
return detail::dissect_formatF<FinderT>(Finder);
}
} // namespace algorithm
// pull the names to the boost namespace
using algorithm::const_formatter;
using algorithm::identity_formatter;
using algorithm::empty_formatter;
using algorithm::dissect_formatter;
} // namespace boost
#endif // BOOST_FORMATTER_HPP
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