You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
72 lines
2.2 KiB
72 lines
2.2 KiB
3 years ago
|
///////////////////////////////////////////////////////////////////////////////
|
||
|
|
// assert_eol_matcher.hpp
|
||
|
|
//
|
||
|
|
// Copyright 2008 Eric Niebler. 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)
|
||
|
|
|
||
|
|
#ifndef BOOST_XPRESSIVE_DETAIL_CORE_MATCHER_ASSERT_EOL_MATCHER_HPP_EAN_10_04_2005
|
||
|
|
#define BOOST_XPRESSIVE_DETAIL_CORE_MATCHER_ASSERT_EOL_MATCHER_HPP_EAN_10_04_2005
|
||
|
|
|
||
|
|
// MS compatible compilers support #pragma once
|
||
|
|
#if defined(_MSC_VER)
|
||
|
|
# pragma once
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#include <boost/next_prior.hpp>
|
||
|
|
#include <boost/xpressive/detail/detail_fwd.hpp>
|
||
|
|
#include <boost/xpressive/detail/core/quant_style.hpp>
|
||
|
|
#include <boost/xpressive/detail/core/state.hpp>
|
||
|
|
#include <boost/xpressive/detail/core/matcher/assert_line_base.hpp>
|
||
|
|
|
||
|
|
namespace boost { namespace xpressive { namespace detail
|
||
|
|
{
|
||
|
|
|
||
|
|
///////////////////////////////////////////////////////////////////////////////
|
||
|
|
// assert_eol_matcher
|
||
|
|
//
|
||
|
|
template<typename Traits>
|
||
|
|
struct assert_eol_matcher
|
||
|
|
: assert_line_base<Traits>
|
||
|
|
{
|
||
|
|
typedef typename Traits::char_type char_type;
|
||
|
|
|
||
|
|
assert_eol_matcher(Traits const &tr)
|
||
|
|
: assert_line_base<Traits>(tr)
|
||
|
|
{
|
||
|
|
}
|
||
|
|
|
||
|
|
template<typename BidiIter, typename Next>
|
||
|
|
bool match(match_state<BidiIter> &state, Next const &next) const
|
||
|
|
{
|
||
|
|
if(state.eos())
|
||
|
|
{
|
||
|
|
if(!state.flags_.match_eol_)
|
||
|
|
{
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
char_type ch = *state.cur_;
|
||
|
|
|
||
|
|
// If the current character is not a newline, we're not at the end of a line
|
||
|
|
if(!traits_cast<Traits>(state).isctype(ch, this->newline_))
|
||
|
|
{
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
// There is no line-break between \r and \n
|
||
|
|
else if(ch == this->nl_ && (!state.bos() || state.flags_.match_prev_avail_) && *boost::prior(state.cur_) == this->cr_)
|
||
|
|
{
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return next.match(state);
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
}}}
|
||
|
|
|
||
|
|
#endif
|