/usr/include/range/v3/view/tokenize.hpp is in librange-v3-dev 0.3.5-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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// Range v3 library
//
// Copyright Eric Niebler 2013-present
//
// Use, modification and distribution is 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)
//
// Project home: https://github.com/ericniebler/range-v3
//
#ifndef RANGES_V3_VIEW_TOKENIZE_HPP
#define RANGES_V3_VIEW_TOKENIZE_HPP
#include <regex>
#include <vector>
#include <utility>
#include <type_traits>
#include <initializer_list>
#include <range/v3/detail/satisfy_boost_range.hpp>
#include <range/v3/range_fwd.hpp>
#include <range/v3/view_interface.hpp>
#include <range/v3/begin_end.hpp>
#include <range/v3/range_concepts.hpp>
#include <range/v3/utility/functional.hpp>
#include <range/v3/utility/static_const.hpp>
#include <range/v3/view/all.hpp>
namespace ranges
{
inline namespace v3
{
/// \addtogroup group-views
/// @{
template<typename Rng, typename Regex, typename SubMatchRange>
struct tokenize_view
: view_interface<
tokenize_view<Rng, Regex, SubMatchRange>,
is_finite<Rng>::value ? finite : range_cardinality<Rng>::value>
{
private:
CONCEPT_ASSERT(BidirectionalView<Rng>() && BoundedRange<Rng>());
CONCEPT_ASSERT(SemiRegular<Regex>());
CONCEPT_ASSERT(SemiRegular<SubMatchRange>());
Rng rng_;
Regex rex_;
SubMatchRange subs_;
std::regex_constants::match_flag_type flags_;
public:
using iterator =
std::regex_token_iterator<iterator_t<Rng>>;
tokenize_view() = default;
tokenize_view(Rng rng, Regex rex, SubMatchRange subs,
std::regex_constants::match_flag_type flags)
: rng_(std::move(rng))
, rex_(std::move(rex))
, subs_(std::move(subs))
, flags_(flags)
{}
iterator begin()
{
return {ranges::begin(rng_), ranges::end(rng_), rex_, subs_, flags_};
}
CONCEPT_REQUIRES(Range<Rng const &>())
iterator begin() const
{
return {ranges::begin(rng_), ranges::end(rng_), rex_, subs_, flags_};
}
iterator end() const
{
return {};
}
Rng & base()
{
return rng_;
}
Rng const & base() const
{
return rng_;
}
};
namespace view
{
struct tokenizer_impl_fn
{
template<typename Rng, typename Regex>
tokenize_view<all_t<Rng>, detail::decay_t<Regex>, int>
operator()(Rng && rng, Regex && rex, int sub = 0,
std::regex_constants::match_flag_type flags =
std::regex_constants::match_default) const
{
CONCEPT_ASSERT(BidirectionalRange<Rng>());
CONCEPT_ASSERT(BoundedRange<Rng>());
static_assert(std::is_same<range_value_type_t<Rng>,
typename detail::decay_t<Regex>::value_type>::value,
"The character range and the regex have different character types");
return {all(static_cast<Rng&&>(rng)), static_cast<Regex&&>(rex), sub,
flags};
}
template<typename Rng, typename Regex>
tokenize_view<all_t<Rng>, detail::decay_t<Regex>, std::vector<int>>
operator()(Rng && rng, Regex && rex, std::vector<int> subs,
std::regex_constants::match_flag_type flags =
std::regex_constants::match_default) const
{
CONCEPT_ASSERT(BidirectionalRange<Rng>());
CONCEPT_ASSERT(BoundedRange<Rng>());
static_assert(std::is_same<range_value_type_t<Rng>,
typename detail::decay_t<Regex>::value_type>::value,
"The character range and the regex have different character types");
return {all(static_cast<Rng&&>(rng)), static_cast<Regex&&>(rex),
std::move(subs), flags};
}
template<typename Rng, typename Regex>
tokenize_view<all_t<Rng>, detail::decay_t<Regex>, std::initializer_list<int>>
operator()(Rng && rng, Regex && rex,
std::initializer_list<int> subs, std::regex_constants::match_flag_type flags =
std::regex_constants::match_default) const
{
CONCEPT_ASSERT(BidirectionalRange<Rng>());
CONCEPT_ASSERT(BoundedRange<Rng>());
static_assert(std::is_same<range_value_type_t<Rng>,
typename detail::decay_t<Regex>::value_type>::value,
"The character range and the regex have different character types");
return {all(static_cast<Rng&&>(rng)), static_cast<Regex&&>(rex),
std::move(subs), flags};
}
template<typename Regex>
auto operator()(Regex && rex, int sub = 0,
std::regex_constants::match_flag_type flags =
std::regex_constants::match_default) const ->
decltype(make_pipeable(std::bind(*this, std::placeholders::_1, bind_forward<Regex>(rex),
std::move(sub), std::move(flags))))
{
return make_pipeable(std::bind(*this, std::placeholders::_1, bind_forward<Regex>(rex),
std::move(sub), std::move(flags)));
}
template<typename Regex>
auto operator()(Regex && rex, std::vector<int> subs,
std::regex_constants::match_flag_type flags =
std::regex_constants::match_default) const ->
decltype(make_pipeable(std::bind(*this, std::placeholders::_1, bind_forward<Regex>(rex),
std::move(subs), std::move(flags))))
{
return make_pipeable(std::bind(*this, std::placeholders::_1, bind_forward<Regex>(rex),
std::move(subs), std::move(flags)));
}
template<typename Regex>
auto operator()(Regex && rex,
std::initializer_list<int> subs, std::regex_constants::match_flag_type flags =
std::regex_constants::match_default) const ->
decltype(make_pipeable(std::bind(*this, std::placeholders::_1, bind_forward<Regex>(rex),
std::move(subs), std::move(flags))))
{
return make_pipeable(std::bind(*this, std::placeholders::_1, bind_forward<Regex>(rex),
std::move(subs), std::move(flags)));
}
};
// Damn C++ and its imperfect forwarding of initializer_list.
struct tokenize_fn : tokenizer_impl_fn
{
private:
tokenizer_impl_fn const & base() const
{
return *this;
}
public:
template<typename ...Args>
auto operator()(Args &&...args) const
-> decltype(base()(static_cast<Args&&>(args)...))
{
return base()(static_cast<Args&&>(args)...);
}
template<typename Arg0, typename ...Args>
auto operator()(Arg0 && arg0, std::initializer_list<int> subs,
Args &&...args) const
-> decltype(base()(static_cast<Arg0&&>(arg0), std::move(subs),
static_cast<Args&&>(args)...))
{
return base()(static_cast<Arg0&&>(arg0), std::move(subs),
static_cast<Args&&>(args)...);
}
template<typename Arg0, typename Arg1, typename ...Args>
auto operator()(Arg0 && arg0, Arg1 && arg1, std::initializer_list<int> subs,
Args &&...args) const
-> decltype(base()(static_cast<Arg0&&>(arg0), static_cast<Arg1&&>(arg1),
std::move(subs), static_cast<Args&&>(args)...))
{
return base()(static_cast<Arg0&&>(arg0), static_cast<Arg1&&>(arg1),
std::move(subs), static_cast<Args&&>(args)...);
}
};
/// \relates tokenize_fn
/// \ingroup group-views
RANGES_INLINE_VARIABLE(tokenize_fn, tokenize)
}
/// @}
}
}
RANGES_SATISFY_BOOST_RANGE(::ranges::v3::tokenize_view)
#endif
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