mirror of
https://github.com/bolero-MURAKAMI/Sprout.git
synced 2024-12-23 21:25:49 +00:00
260 lines
8.9 KiB
C++
260 lines
8.9 KiB
C++
/*=============================================================================
|
|
Copyright (c) 2011-2013 Bolero MURAKAMI
|
|
https://github.com/bolero-MURAKAMI/Sprout
|
|
|
|
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 SPROUT_STRING_CHAR_TRAITS_HPP
|
|
#define SPROUT_STRING_CHAR_TRAITS_HPP
|
|
|
|
#include <cstddef>
|
|
#include <cstdio>
|
|
#include <string>
|
|
#include <algorithm>
|
|
#include <sprout/config.hpp>
|
|
#include <sprout/functional/bind2nd.hpp>
|
|
#include <sprout/iterator/ptr_index_iterator.hpp>
|
|
#include <sprout/algorithm/find_if.hpp>
|
|
#include <sprout/algorithm/tristate_lexicographical_compare.hpp>
|
|
#include <sprout/iterator/operation.hpp>
|
|
#include <sprout/cstring/strlen.hpp>
|
|
|
|
namespace sprout {
|
|
namespace detail {
|
|
template<typename Traits>
|
|
class char_traits_eq {
|
|
public:
|
|
typedef Traits traits_type;
|
|
typedef typename traits_type::char_type char_type;
|
|
typedef bool result_type;
|
|
typedef char_type first_argument_type;
|
|
typedef char_type second_argument_type;
|
|
public:
|
|
SPROUT_CONSTEXPR bool operator()(char_type c1, char_type c2) const SPROUT_NOEXCEPT {
|
|
return traits_type::eq(c1, c2);
|
|
}
|
|
};
|
|
|
|
template<typename Traits>
|
|
class char_traits_lt {
|
|
public:
|
|
typedef Traits traits_type;
|
|
typedef typename traits_type::char_type char_type;
|
|
typedef bool result_type;
|
|
typedef char_type first_argument_type;
|
|
typedef char_type second_argument_type;
|
|
public:
|
|
SPROUT_CONSTEXPR bool operator()(char_type c1, char_type c2) const SPROUT_NOEXCEPT {
|
|
return traits_type::lt(c1, c2);
|
|
}
|
|
};
|
|
} // namespace detail
|
|
|
|
//
|
|
// char_traits
|
|
//
|
|
template<typename Char>
|
|
class char_traits {
|
|
private:
|
|
typedef std::char_traits<Char> impl_type;
|
|
public:
|
|
typedef typename impl_type::char_type char_type;
|
|
typedef typename impl_type::int_type int_type;
|
|
typedef typename impl_type::off_type off_type;
|
|
typedef typename impl_type::pos_type pos_type;
|
|
typedef typename impl_type::state_type state_type;
|
|
private:
|
|
static SPROUT_CONSTEXPR char_type const* find_impl(char_type const* found, char_type const* last) {
|
|
return found == last ? nullptr
|
|
: found
|
|
;
|
|
}
|
|
public:
|
|
static void assign(char_type& c1, char_type const& c2) SPROUT_NOEXCEPT {
|
|
impl_type::assign(c1, c2);
|
|
}
|
|
#ifdef SPROUT_NO_CXX11_CHAR_TRAITS
|
|
static SPROUT_CONSTEXPR bool eq(char_type c1, char_type c2) SPROUT_NOEXCEPT {
|
|
return c1 == c2;
|
|
}
|
|
static SPROUT_CONSTEXPR bool lt(char_type c1, char_type c2) SPROUT_NOEXCEPT {
|
|
return c1 < c2;
|
|
}
|
|
#else
|
|
static SPROUT_CONSTEXPR bool eq(char_type c1, char_type c2) SPROUT_NOEXCEPT {
|
|
return impl_type::eq(c1, c2);
|
|
}
|
|
static SPROUT_CONSTEXPR bool lt(char_type c1, char_type c2) SPROUT_NOEXCEPT {
|
|
return impl_type::lt(c1, c2);
|
|
}
|
|
#endif
|
|
static SPROUT_CONSTEXPR int compare(char_type const* s1, char_type const* s2, std::size_t n) {
|
|
return sprout::tristate_lexicographical_compare(
|
|
sprout::ptr_index(s1), sprout::ptr_index(s1, n), char_type(),
|
|
sprout::ptr_index(s2), sprout::ptr_index(s2, n), char_type(),
|
|
sprout::detail::char_traits_lt<char_traits>()
|
|
);
|
|
}
|
|
static SPROUT_CONSTEXPR std::size_t length(char_type const* s) {
|
|
return sprout::strlen(s);
|
|
}
|
|
static SPROUT_CONSTEXPR char_type const* find(char_type const* s, std::size_t n, char_type const& a) {
|
|
return find_impl(
|
|
sprout::ptr_unindex(
|
|
sprout::find_if(
|
|
sprout::ptr_index(s), sprout::ptr_index(s, n),
|
|
sprout::bind2nd(sprout::detail::char_traits_eq<char_traits>(), a)
|
|
)
|
|
),
|
|
s + n
|
|
);
|
|
}
|
|
static char_type* move(char_type* s1, char_type const* s2, std::size_t n) {
|
|
return impl_type::move(s1, s2, n);
|
|
}
|
|
static char_type* copy(char_type* s1, char_type const* s2, std::size_t n) {
|
|
return impl_type::copy(s1, s2, n);
|
|
}
|
|
static char_type* assign(char_type* s, std::size_t n, char_type a) {
|
|
return impl_type::assign(s, n, a);
|
|
}
|
|
#ifdef SPROUT_NO_CXX11_CHAR_TRAITS
|
|
static SPROUT_CONSTEXPR int_type not_eof(int_type c) SPROUT_NOEXCEPT {
|
|
return eq_int_type(c, eof()) ? int_type()
|
|
: c
|
|
;
|
|
}
|
|
static SPROUT_CONSTEXPR char_type to_char_type(int_type c) SPROUT_NOEXCEPT {
|
|
return static_cast<char_type>(c);
|
|
}
|
|
static SPROUT_CONSTEXPR int_type to_int_type(char_type c) SPROUT_NOEXCEPT {
|
|
return static_cast<int_type>(c);
|
|
}
|
|
static SPROUT_CONSTEXPR bool eq_int_type(int_type c1, int_type c2) SPROUT_NOEXCEPT {
|
|
return c1 == c2;
|
|
}
|
|
static SPROUT_CONSTEXPR int_type eof() SPROUT_NOEXCEPT {
|
|
return static_cast<int_type>(EOF);
|
|
}
|
|
#else
|
|
static SPROUT_CONSTEXPR int_type not_eof(int_type c) SPROUT_NOEXCEPT {
|
|
return impl_type::not_eof(c);
|
|
}
|
|
static SPROUT_CONSTEXPR char_type to_char_type(int_type c) SPROUT_NOEXCEPT {
|
|
return impl_type::to_char_type(c);
|
|
}
|
|
static SPROUT_CONSTEXPR int_type to_int_type(char_type c) SPROUT_NOEXCEPT {
|
|
return impl_type::to_int_type(c);
|
|
}
|
|
static SPROUT_CONSTEXPR bool eq_int_type(int_type c1, int_type c2) SPROUT_NOEXCEPT {
|
|
return impl_type::eq_int_type(c1, c2);
|
|
}
|
|
static SPROUT_CONSTEXPR int_type eof() SPROUT_NOEXCEPT {
|
|
return impl_type::eof();
|
|
}
|
|
#endif
|
|
#if SPROUT_USE_INDEX_ITERATOR_IMPLEMENTATION
|
|
template<typename ConstIterator>
|
|
static SPROUT_CONSTEXPR int compare(char_type const* s1, ConstIterator s2, std::size_t n) {
|
|
return sprout::tristate_lexicographical_compare(
|
|
sprout::ptr_index(s1), sprout::ptr_index(s1, n), char_type(),
|
|
s2, s2 + n, char_type(),
|
|
sprout::detail::char_traits_lt<char_traits>()
|
|
);
|
|
}
|
|
template<typename ConstIterator>
|
|
static SPROUT_CONSTEXPR int compare(ConstIterator s1, char_type const* s2, std::size_t n) {
|
|
return sprout::tristate_lexicographical_compare(
|
|
s1, s1 + n, char_type(),
|
|
sprout::ptr_index(s2), sprout::ptr_index(s2, n), char_type(),
|
|
sprout::detail::char_traits_lt<char_traits>()
|
|
);
|
|
}
|
|
template<typename ConstIterator1, typename ConstIterator2>
|
|
static SPROUT_CONSTEXPR int compare(ConstIterator1 s1, ConstIterator2 s2, std::size_t n) {
|
|
return sprout::tristate_lexicographical_compare(
|
|
s1, s1 + n, char_type(),
|
|
s2, s2 + n, char_type(),
|
|
sprout::detail::char_traits_lt<char_traits>()
|
|
);
|
|
}
|
|
template<typename ConstIterator>
|
|
static SPROUT_CONSTEXPR std::size_t length(ConstIterator s) {
|
|
return sprout::detail::strlen(s);
|
|
}
|
|
template<typename ConstIterator>
|
|
static SPROUT_CONSTEXPR ConstIterator find(ConstIterator s, std::size_t n, char_type const& a) {
|
|
return sprout::ptr_unindex(
|
|
sprout::find_if(
|
|
s, s + n,
|
|
sprout::bind2nd(sprout::detail::char_traits_eq<char_traits>(), a)
|
|
)
|
|
);
|
|
}
|
|
template<typename Iterator, typename ConstIterator>
|
|
static Iterator move(Iterator s1, ConstIterator s2, std::size_t n) {
|
|
std::copy_backward(s2, s2 + n, s1);
|
|
return s1;
|
|
}
|
|
template<typename Iterator, typename ConstIterator>
|
|
static Iterator copy(Iterator s1, ConstIterator s2, std::size_t n) {
|
|
std::copy(s2, s2 + n, s1);
|
|
return s1;
|
|
}
|
|
template<typename Iterator>
|
|
static Iterator assign(Iterator s, std::size_t n, char_type a) {
|
|
std::fill(s, s + n, a);
|
|
return s;
|
|
}
|
|
#endif
|
|
};
|
|
|
|
//
|
|
// char_traits_helper
|
|
//
|
|
template<typename Traits>
|
|
class char_traits_helper {
|
|
public:
|
|
typedef Traits traits_type;
|
|
typedef typename traits_type::char_type char_type;
|
|
typedef typename traits_type::int_type int_type;
|
|
typedef typename traits_type::off_type off_type;
|
|
typedef typename traits_type::pos_type pos_type;
|
|
typedef typename traits_type::state_type state_type;
|
|
public:
|
|
static SPROUT_CONSTEXPR std::size_t length(char_type const* s, std::size_t n) {
|
|
return sprout::strlen(s, n);
|
|
}
|
|
static SPROUT_CONSTEXPR char_type const* find(char_type const* s, std::size_t n, char_type const& a) {
|
|
return sprout::ptr_unindex(
|
|
sprout::find_if(
|
|
sprout::ptr_index(s), sprout::ptr_index(s, n),
|
|
sprout::bind2nd(sprout::detail::char_traits_eq<traits_type>(), a)
|
|
)
|
|
);
|
|
}
|
|
static SPROUT_CONSTEXPR bool is_found(char_type const* found, char_type const* last) {
|
|
return found != last;
|
|
}
|
|
#if SPROUT_USE_INDEX_ITERATOR_IMPLEMENTATION
|
|
template<typename ConstIterator>
|
|
static SPROUT_CONSTEXPR std::size_t length(ConstIterator s, std::size_t n) {
|
|
return sprout::detail::strlen(s, n);
|
|
}
|
|
template<typename ConstIterator>
|
|
static SPROUT_CONSTEXPR ConstIterator find(ConstIterator s, std::size_t n, char_type const& a) {
|
|
return sprout::find_if(
|
|
s, s + n,
|
|
sprout::bind2nd(sprout::detail::char_traits_eq<traits_type>(), a)
|
|
);
|
|
}
|
|
template<typename ConstIterator>
|
|
static SPROUT_CONSTEXPR bool is_found(ConstIterator found, ConstIterator last) {
|
|
return found != last;
|
|
}
|
|
#endif
|
|
};
|
|
} // namespace sprout
|
|
|
|
#endif // #ifndef SPROUT_STRING_CHAR_TRAITS_HPP
|