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Sprout/sprout/string.hpp
2012-04-13 21:23:49 +09:00

1071 lines
35 KiB
C++

#ifndef SPROUT_STRING_HPP
#define SPROUT_STRING_HPP
#include <cstddef>
#include <ios>
#include <algorithm>
#include <utility>
#include <string>
#include <stdexcept>
#include <type_traits>
#include <sprout/config.hpp>
#include <sprout/array.hpp>
#include <sprout/index_tuple.hpp>
#include <sprout/container/traits.hpp>
#include <sprout/operation/fixed/push_back.hpp>
#include <sprout/operation/fixed/push_front.hpp>
#include <sprout/operation/fixed/append_back.hpp>
#include <sprout/operation/fixed/append_front.hpp>
#include <sprout/iterator.hpp>
#include <sprout/utility/forward.hpp>
#include HDR_ALGORITHM_SSCRISK_CEL_OR_SPROUT
#if SPROUT_USE_INDEX_ITERATOR_IMPLEMENTATION
# include <algorithm>
# include <sprout/iterator/index_iterator.hpp>
#endif
namespace sprout {
//
// 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;
public:
static void assign(char_type& c1, char_type const& c2) SPROUT_NOEXCEPT {
impl_type::assign(c1, c2);
}
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);
}
static SPROUT_CONSTEXPR int compare(char_type const* s1, char_type const* s2, std::size_t n) {
return !n ? 0
: lt(*s1, *s2) ? -1
: lt(*s2, *s1) ? 1
: compare(s1 + 1, s2 + 1, n - 1)
;
}
static SPROUT_CONSTEXPR std::size_t length(char_type const* s) {
return !*s ? 0
: 1 + length(s + 1)
;
}
static SPROUT_CONSTEXPR char_type const* find(char_type const* s, std::size_t n, char_type const& a) {
return !n ? nullptr
: eq(*s, a) ? s
: find(s + 1, n - 1, a)
;
}
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);
}
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();
}
#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 !n ? 0
: lt(*s1, *s2) ? -1
: lt(*s2, *s1) ? 1
: compare(s1 + 1, s2 + 1, n - 1)
;
}
template<typename ConstIterator>
static SPROUT_CONSTEXPR int compare(ConstIterator s1, char_type const* s2, std::size_t n) {
return !n ? 0
: lt(*s1, *s2) ? -1
: lt(*s2, *s1) ? 1
: compare(s1 + 1, s2 + 1, n - 1)
;
}
template<typename ConstIterator1, typename ConstIterator2>
static SPROUT_CONSTEXPR int compare(ConstIterator1 s1, ConstIterator2 s2, std::size_t n) {
return !n ? 0
: lt(*s1, *s2) ? -1
: lt(*s2, *s1) ? 1
: compare(s1 + 1, s2 + 1, n - 1)
;
}
template<typename ConstIterator>
static SPROUT_CONSTEXPR std::size_t length(ConstIterator s) {
return !*s ? 0
: 1 + length(s + 1)
;
}
template<typename ConstIterator>
static SPROUT_CONSTEXPR ConstIterator find(ConstIterator s, std::size_t n, char_type const& a) {
return !n ? nullptr
: eq(*s, a) ? s
: find(s + 1, n - 1, 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
};
//
// basic_string
//
template<typename T, std::size_t N, typename Traits = sprout::char_traits<T> >
class basic_string {
public:
typedef T value_type;
#if SPROUT_USE_INDEX_ITERATOR_IMPLEMENTATION
typedef sprout::index_iterator<basic_string&> iterator;
typedef sprout::index_iterator<basic_string const&> const_iterator;
#else
typedef T* iterator;
typedef T const* const_iterator;
#endif
typedef T& reference;
typedef T const& const_reference;
typedef std::size_t size_type;
typedef std::ptrdiff_t difference_type;
typedef T* pointer;
typedef T const* const_pointer;
typedef sprout::reverse_iterator<iterator> reverse_iterator;
typedef sprout::reverse_iterator<const_iterator> const_reverse_iterator;
typedef Traits traits_type;
public:
SPROUT_STATIC_CONSTEXPR size_type npos = -1;
SPROUT_STATIC_CONSTEXPR size_type static_size = N;
private:
static SPROUT_CONSTEXPR int compare_impl_2(int compared, size_type n1, size_type n2) {
return compared != 0 ? compared
: n1 < n2 ? -1
: n2 < n1 ? 1
: 0
;
}
static SPROUT_CONSTEXPR int compare_impl_1(value_type const* dest, size_type pos1, size_type n1, value_type const* s, size_type n2) {
return compare_impl_2(
traits_type::compare(dest + pos1, s, NS_SSCRISK_CEL_OR_SPROUT::min(n1, n2)),
n1,
n2
);
}
template<sprout::index_t... Indexes>
static SPROUT_CONSTEXPR basic_string<T, N, Traits> from_c_str_impl(
value_type const* s,
size_type n,
sprout::index_tuple<Indexes...>
)
{
return sprout::basic_string<T, N, Traits>{{(Indexes < n ? s[Indexes] : T())...}, n};
}
#if SPROUT_USE_INDEX_ITERATOR_IMPLEMENTATION
template<typename ConstIterator>
static SPROUT_CONSTEXPR typename std::enable_if<
sprout::is_index_iterator<ConstIterator>::value,
int
>::type compare_impl_1(value_type const* dest, size_type pos1, size_type n1, ConstIterator s, size_type n2) {
return compare_impl_2(
traits_type::compare(dest + pos1, s, NS_SSCRISK_CEL_OR_SPROUT::min(n1, n2)),
n1,
n2
);
}
static SPROUT_CONSTEXPR int compare_impl_1(const_iterator dest, size_type pos1, size_type n1, value_type const* s, size_type n2) {
return compare_impl_2(
traits_type::compare(dest + pos1, s, NS_SSCRISK_CEL_OR_SPROUT::min(n1, n2)),
n1,
n2
);
}
template<typename ConstIterator>
static SPROUT_CONSTEXPR typename std::enable_if<
sprout::is_index_iterator<ConstIterator>::value,
int
>::type compare_impl_1(const_iterator dest, size_type pos1, size_type n1, ConstIterator s, size_type n2) {
return compare_impl_2(
traits_type::compare(dest + pos1, s, NS_SSCRISK_CEL_OR_SPROUT::min(n1, n2)),
n1,
n2
);
}
#endif
template<std::size_t M, sprout::index_t... Indexes>
static SPROUT_CONSTEXPR basic_string<T, sizeof...(Indexes), Traits> implicit_conversion_impl(
T const(& elems)[M],
size_type len,
sprout::index_tuple<Indexes...>
)
{
return sprout::basic_string<T, sizeof...(Indexes), Traits>{{(Indexes < M - 1 ? elems[Indexes] : T())...}, len};
}
public:
static SPROUT_CONSTEXPR basic_string<T, N, Traits> from_c_str(value_type const* s, size_type n) {
return !(N < n)
? from_c_str_impl(s, n, typename sprout::index_range<0, N>::type())
: throw std::out_of_range("basic_string<>: index out of range")
;
}
static SPROUT_CONSTEXPR basic_string<T, N, Traits> from_c_str(value_type const* s) {
return from_c_str(s, traits_type::length(s));
}
public:
value_type elems[static_size + 1];
size_type len;
public:
// construct/copy/destroy:
template<std::size_t N2>
basic_string<T, N, Traits>& operator=(basic_string<T, N2, Traits> const& rhs) {
return assign(rhs);
}
basic_string<T, N, Traits>& operator=(value_type const* rhs) {
return assign(rhs);
}
basic_string<T, N, Traits>& operator=(value_type rhs) {
return assign(1, rhs);
}
// iterators:
#if SPROUT_USE_INDEX_ITERATOR_IMPLEMENTATION
iterator begin() SPROUT_NOEXCEPT {
return iterator(*this, 0);
}
SPROUT_CONSTEXPR const_iterator begin() const SPROUT_NOEXCEPT {
return const_iterator(*this, 0);
}
iterator end() SPROUT_NOEXCEPT {
return iterator(*this, size());
}
SPROUT_CONSTEXPR const_iterator end() const SPROUT_NOEXCEPT {
return const_iterator(*this, size());
}
#else
iterator begin() SPROUT_NOEXCEPT {
return &elems[0];
}
SPROUT_CONSTEXPR const_iterator begin() const SPROUT_NOEXCEPT {
return &elems[0];
}
iterator end() SPROUT_NOEXCEPT {
return &elems[0] + size();
}
SPROUT_CONSTEXPR const_iterator end() const SPROUT_NOEXCEPT {
return &elems[0] + size();
}
#endif
reverse_iterator rbegin() SPROUT_NOEXCEPT {
return const_reverse_iterator(end());
}
SPROUT_CONSTEXPR const_reverse_iterator rbegin() const SPROUT_NOEXCEPT {
return const_reverse_iterator(end());
}
reverse_iterator rend() SPROUT_NOEXCEPT {
return const_reverse_iterator(begin());
}
SPROUT_CONSTEXPR const_reverse_iterator rend() const SPROUT_NOEXCEPT {
return const_reverse_iterator(begin());
}
#if SPROUT_USE_INDEX_ITERATOR_IMPLEMENTATION
SPROUT_CONSTEXPR const_iterator cbegin() const SPROUT_NOEXCEPT {
return const_iterator(*this, 0);
}
SPROUT_CONSTEXPR const_iterator cend() const SPROUT_NOEXCEPT {
return const_iterator(*this, size());
}
#else
SPROUT_CONSTEXPR const_iterator cbegin() const SPROUT_NOEXCEPT {
return &elems[0];
}
SPROUT_CONSTEXPR const_iterator cend() const SPROUT_NOEXCEPT {
return &elems[0] + size();
}
#endif
SPROUT_CONSTEXPR const_reverse_iterator crbegin() const SPROUT_NOEXCEPT {
return const_reverse_iterator(end());
}
SPROUT_CONSTEXPR const_reverse_iterator crend() const SPROUT_NOEXCEPT {
return const_reverse_iterator(begin());
}
// capacity:
SPROUT_CONSTEXPR size_type size() const SPROUT_NOEXCEPT {
return len;
}
SPROUT_CONSTEXPR size_type length() const SPROUT_NOEXCEPT {
return size();
}
SPROUT_CONSTEXPR size_type max_size() const SPROUT_NOEXCEPT {
return static_size;
}
void resize(size_type n, value_type c) {
maxcheck(n);
if (n > size()) {
traits_type::assign(end(), n - size(), c);
}
traits_type::assign(begin() + n, max_size() - n, value_type());
len = n;
}
void resize(size_type n) {
resize(n, value_type());
}
void clear() {
traits_type::assign(begin(), max_size(), value_type());
len = 0;
}
SPROUT_CONSTEXPR bool empty() const SPROUT_NOEXCEPT {
return size() == 0;
}
// element access:
reference operator[](size_type i) {
return elems[i];
}
SPROUT_CONSTEXPR const_reference operator[](size_type i) const {
return elems[i];
}
reference at(size_type i) {
return i < size()
? elems[i]
: (throw std::out_of_range("basic_string<>: index out of range"), elems[i])
;
}
SPROUT_CONSTEXPR const_reference at(size_type i) const {
return i < size()
? elems[i]
: (throw std::out_of_range("basic_string<>: index out of range"), elems[i])
;
}
reference front() {
return elems[0];
}
SPROUT_CONSTEXPR const_reference front() const {
return elems[0];
}
reference back() {
return elems[size() - 1];
}
SPROUT_CONSTEXPR const_reference back() const {
return elems[size() - 1];
}
// modifiers:
template<std::size_t N2>
basic_string<T, N, Traits>& assign(basic_string<T, N2, Traits> const& str) {
return assign(str.begin(), str.size());
}
template<std::size_t N2>
basic_string<T, N, Traits>& assign(basic_string<T, N2, Traits> const& str, size_type pos, size_type n) {
if (str.size() < pos + n) {
throw std::out_of_range("basic_string<>: index out of range");
}
return assign(str.begin() + pos, n);
}
basic_string<T, N, Traits>& assign(value_type const* s, size_type n) {
maxcheck(n);
for (size_type i = 0; i < n; ++i) {
traits_type::assign(elems[i], s[i]);
}
for (size_type i = n; i < max_size(); ++i) {
traits_type::assign(elems[i], value_type());
}
len = n;
return *this;
}
basic_string<T, N, Traits>& assign(value_type const* s) {
return assign(s, traits_type::length(s));
}
basic_string<T, N, Traits>& assign(size_type n, value_type c) {
maxcheck(n);
traits_type::assign(begin(), n, c);
traits_type::assign(begin() + n, max_size() - n, value_type());
len = n;
return *this;
}
template<typename Iterator>
basic_string<T, N, Traits>& assign(Iterator first, Iterator last) {
size_type n = 0;
for (; n < max_size() || first != last; ++n, ++first) {
traits_type::assign(elems[n], *first);
}
for (size_type i = n; i < max_size(); ++i) {
traits_type::assign(elems[i], value_type());
}
len = n;
return *this;
}
void swap(basic_string<T, N, Traits>& other) SPROUT_NOEXCEPT_EXPR(SPROUT_NOEXCEPT_EXPR(std::swap(std::declval<T&>(), std::declval<T&>()))) {
std::swap_ranges(other.begin(), other.begin() + other.max_size(), begin());
{
using std::swap;
swap(len, other.len);
}
}
// string operations:
SPROUT_CONSTEXPR const_pointer c_str() const SPROUT_NOEXCEPT {
return &elems[0];
}
pointer data() SPROUT_NOEXCEPT {
return &elems[0];
}
SPROUT_CONSTEXPR const_pointer data() const SPROUT_NOEXCEPT {
return &elems[0];
}
SPROUT_CONSTEXPR basic_string<T, N, Traits> substr(size_type pos = 0, size_type n = npos) const {
return !(size() < pos)
? n == npos
? substr(pos, size() - pos)
: from_c_str(c_str() + pos, n)
: throw std::out_of_range("basic_string<>: index out of range")
;
}
template<std::size_t N2>
SPROUT_CONSTEXPR int compare(basic_string<T, N2, Traits> const& str) const {
return compare(0, size(), str.begin(), str.size());
}
SPROUT_CONSTEXPR int compare(value_type const* s) const {
return compare(0, size(), s, traits_type::length(s));
}
template<std::size_t N2>
SPROUT_CONSTEXPR int compare(size_type pos1, size_type n1, basic_string<T, N2, Traits> const& str) const {
return compare(pos1, n1, str, 0, npos);
}
SPROUT_CONSTEXPR int compare(size_type pos1, size_type n1, value_type const* s) const {
return compare(pos1, n1, s, traits_type::length(s));
}
template<std::size_t N2>
SPROUT_CONSTEXPR int compare(size_type pos1, size_type n1, basic_string<T, N2, Traits> const& str, size_type pos2, size_type n2) const {
return !(str.size() < pos2)
? compare(pos1, n1, str.begin() + pos2, NS_SSCRISK_CEL_OR_SPROUT::min(n2, str.size() - pos2))
: throw std::out_of_range("basic_string<>: index out of range")
;
}
SPROUT_CONSTEXPR int compare(size_type pos1, size_type n1, value_type const* s, size_type n2) const {
return !(size() < pos1)
? compare_impl_1(begin(), pos1, NS_SSCRISK_CEL_OR_SPROUT::min(n1, size() - pos1), s, n2)
: throw std::out_of_range("basic_string<>: index out of range")
;
}
// others:
template<std::size_t N2, typename Enable = typename std::enable_if<(N2 > N)>::type>
SPROUT_CONSTEXPR operator basic_string<T, N2, Traits>() const {
return implicit_conversion_impl(
elems,
len,
typename sprout::index_range<0, N2>::type()
);
}
pointer c_array() SPROUT_NOEXCEPT {
return &elems[0];
}
void rangecheck(size_type i) const {
if (i >= size()) {
throw std::out_of_range("basic_string<>: index out of range");
}
}
void maxcheck(size_type n) const {
if (n > max_size()) {
throw std::out_of_range("basic_string<>: index out of range");
}
}
#if SPROUT_USE_INDEX_ITERATOR_IMPLEMENTATION
template<typename ConstIterator>
typename std::enable_if<
sprout::is_index_iterator<ConstIterator>::value,
basic_string<T, N, Traits>&
>::type assign(ConstIterator s, size_type n) {
maxcheck(n);
for (size_type i = 0; i < n; ++i) {
traits_type::assign(elems[i], s[i]);
}
for (size_type i = n; i < max_size(); ++i) {
traits_type::assign(elems[i], value_type());
}
len = n;
return *this;
}
template<typename ConstIterator>
typename std::enable_if<
sprout::is_index_iterator<ConstIterator>::value,
basic_string<T, N, Traits>&
>::type assign(ConstIterator s) {
return assign(s, traits_type::length(s));
}
template<typename ConstIterator>
typename std::enable_if<
sprout::is_index_iterator<ConstIterator>::value,
basic_string<T, N, Traits>&
>::type operator=(ConstIterator rhs) {
return assign(rhs);
}
template<typename ConstIterator>
SPROUT_CONSTEXPR typename std::enable_if<
sprout::is_index_iterator<ConstIterator>::value,
int
>::type compare(ConstIterator s) const {
return compare(0, size(), s, traits_type::length(s));
}
template<typename ConstIterator>
SPROUT_CONSTEXPR typename std::enable_if<
sprout::is_index_iterator<ConstIterator>::value,
int
>::type compare(size_type pos1, size_type n1, ConstIterator s) const {
return compare(pos1, n1, s, traits_type::length(s));
}
template<typename ConstIterator>
SPROUT_CONSTEXPR typename std::enable_if<
sprout::is_index_iterator<ConstIterator>::value,
int
>::type compare(size_type pos1, size_type n1, ConstIterator s, size_type n2) const {
return !(size() < pos1)
? compare_impl_1(begin(), pos1, NS_SSCRISK_CEL_OR_SPROUT::min(n1, size() - pos1), s, n2)
: throw std::out_of_range("basic_string<>: index out of range")
;
}
#endif
};
template<typename T, std::size_t N, typename Traits>
SPROUT_CONSTEXPR typename sprout::basic_string<T, N, Traits>::size_type sprout::basic_string<T, N, Traits>::npos;
template<typename T, std::size_t N, typename Traits>
SPROUT_CONSTEXPR typename sprout::basic_string<T, N, Traits>::size_type sprout::basic_string<T, N, Traits>::static_size;
//
// operator==
// operator!=
// operator<
// operator>
// operator<=
// operator>=
//
template<typename T, std::size_t N1, std::size_t N2, typename Traits>
inline SPROUT_CONSTEXPR bool operator==(sprout::basic_string<T, N1, Traits> const& lhs, sprout::basic_string<T, N2, Traits> const& rhs) {
return lhs.compare(rhs) == 0;
}
template<typename T, std::size_t N, typename Traits>
inline SPROUT_CONSTEXPR bool operator==(sprout::basic_string<T, N, Traits> const& lhs, T const* rhs) {
return lhs.compare(rhs) == 0;
}
template<typename T, std::size_t N, typename Traits>
inline SPROUT_CONSTEXPR bool operator==(T const* lhs, sprout::basic_string<T, N, Traits> const& rhs) {
return 0 == rhs.compare(lhs);
}
template<typename T, std::size_t N1, std::size_t N2, typename Traits>
inline SPROUT_CONSTEXPR bool operator!=(sprout::basic_string<T, N1, Traits> const& lhs, sprout::basic_string<T, N2, Traits> const& rhs) {
return !(lhs == rhs);
}
template<typename T, std::size_t N, typename Traits>
inline SPROUT_CONSTEXPR bool operator!=(sprout::basic_string<T, N, Traits> const& lhs, T const* rhs) {
return !(lhs == rhs);
}
template<typename T, std::size_t N, typename Traits>
inline SPROUT_CONSTEXPR bool operator!=(T const* lhs, sprout::basic_string<T, N, Traits> const& rhs) {
return !(lhs == rhs);
}
template<typename T, std::size_t N1, std::size_t N2, typename Traits>
inline SPROUT_CONSTEXPR bool operator<(sprout::basic_string<T, N1, Traits> const& lhs, sprout::basic_string<T, N2, Traits> const& rhs) {
return lhs.compare(rhs) < 0;
}
template<typename T, std::size_t N, typename Traits>
inline SPROUT_CONSTEXPR bool operator<(sprout::basic_string<T, N, Traits> const& lhs, T const* rhs) {
return lhs.compare(rhs) < 0;
}
template<typename T, std::size_t N, typename Traits>
inline SPROUT_CONSTEXPR bool operator<(T const* lhs, sprout::basic_string<T, N, Traits> const& rhs) {
return 0 < rhs.compare(lhs);
}
template<typename T, std::size_t N1, std::size_t N2, typename Traits>
inline SPROUT_CONSTEXPR bool operator>(sprout::basic_string<T, N1, Traits> const& lhs, sprout::basic_string<T, N2, Traits> const& rhs) {
return rhs < lhs;
}
template<typename T, std::size_t N, typename Traits>
inline SPROUT_CONSTEXPR bool operator>(sprout::basic_string<T, N, Traits> const& lhs, T const* rhs) {
return rhs < lhs;
}
template<typename T, std::size_t N, typename Traits>
inline SPROUT_CONSTEXPR bool operator>(T const* lhs, sprout::basic_string<T, N, Traits> const& rhs) {
return rhs < lhs;
}
template<typename T, std::size_t N1, std::size_t N2, typename Traits>
inline SPROUT_CONSTEXPR bool operator<=(sprout::basic_string<T, N1, Traits> const& lhs, sprout::basic_string<T, N2, Traits> const& rhs) {
return !(rhs < lhs);
}
template<typename T, std::size_t N, typename Traits>
inline SPROUT_CONSTEXPR bool operator<=(sprout::basic_string<T, N, Traits> const& lhs, T const* rhs) {
return !(rhs < lhs);
}
template<typename T, std::size_t N, typename Traits>
inline SPROUT_CONSTEXPR bool operator<=(T const* lhs, sprout::basic_string<T, N, Traits> const& rhs) {
return !(rhs < lhs);
}
template<typename T, std::size_t N1, std::size_t N2, typename Traits>
inline SPROUT_CONSTEXPR bool operator>=(sprout::basic_string<T, N1, Traits> const& lhs, sprout::basic_string<T, N2, Traits> const& rhs) {
return !(lhs < rhs);
}
template<typename T, std::size_t N, typename Traits>
inline SPROUT_CONSTEXPR bool operator>=(sprout::basic_string<T, N, Traits> const& lhs, T const* rhs) {
return !(lhs < rhs);
}
template<typename T, std::size_t N, typename Traits>
inline SPROUT_CONSTEXPR bool operator>=(T const* lhs, sprout::basic_string<T, N, Traits> const& rhs) {
return !(lhs < rhs);
}
//
// swap
//
template<typename T, std::size_t N, typename Traits>
inline void swap(
sprout::basic_string<T, N, Traits>& lhs,
sprout::basic_string<T, N, Traits>& rhs
) SPROUT_NOEXCEPT_EXPR(SPROUT_NOEXCEPT_EXPR(lhs.swap(rhs)))
{
lhs.swap(rhs);
}
//
// operator>>
// operator<<
//
template<typename T, std::size_t N, typename Traits, typename StreamTraits>
inline std::basic_istream<T, StreamTraits>& operator>>(std::basic_istream<T, StreamTraits>& lhs, sprout::basic_string<T, N, Traits>& rhs) {
typedef T elem_type;
typedef StreamTraits traits_type;
typedef std::basic_istream<T, StreamTraits> istream_type;
typedef sprout::basic_string<T, N, Traits> string_type;
typedef std::ctype<elem_type> ctype_type;
typedef typename string_type::size_type size_type;
std::ios_base::iostate state = std::ios_base::goodbit;
bool changed = false;
size_type current = 0;
if (typename istream_type::sentry(lhs)) {
ctype_type const& ctype_fac = std::use_facet<ctype_type>(lhs.getloc());
try {
size_type remain = 0 < lhs.width() && static_cast<size_type>(lhs.width()) < rhs.max_size()
? static_cast<size_type>(lhs.width())
: rhs.max_size()
;
typename traits_type::int_type meta = lhs.rdbuf()->sgetc();
for (; remain; --remain, meta = lhs.rdbuf()->snextc())
if (traits_type::eq_int_type(traits_type::eof(), meta)) {
state |= std::ios_base::eofbit;
break;
} else if (ctype_fac.is(ctype_type::space, traits_type::to_char_type(meta))) {
break;
} else {
rhs[current] = traits_type::to_char_type(meta);
changed = true;
++current;
}
} catch (...) {
state |= std::ios_base::badbit;
}
}
lhs.width(0);
if (!changed) {
state |= std::ios_base::failbit;
}
lhs.setstate(state);
rhs.len = current;
for (; current != rhs.max_size(); ++current) {
rhs[current] = T();
}
return lhs;
}
template<typename T, std::size_t N, typename Traits, typename StreamTraits>
inline std::basic_ostream<T, StreamTraits>& operator<<(std::basic_ostream<T, StreamTraits>& lhs, sprout::basic_string<T, N, Traits> const& rhs) {
return lhs << rhs.c_str();
}
namespace detail {
template<typename Container>
struct make_construct_impl;
template<typename T, std::size_t N, typename Traits>
struct make_construct_impl<sprout::basic_string<T, N, Traits> > {
private:
typedef sprout::basic_string<T, N, Traits> copied_type;
private:
template<std::size_t S>
static SPROUT_CONSTEXPR copied_type make_impl(typename copied_type::size_type size) {
return copied_type{{}, size};
}
template<std::size_t S, typename Head, typename... Tail>
static SPROUT_CONSTEXPR typename std::enable_if<
S == sizeof...(Tail),
copied_type
>::type make_impl(typename copied_type::size_type size, Head&& head, Tail&&... tail) {
return copied_type{{sprout::forward<Tail>(tail)..., sprout::forward<Head>(head)}, size};
}
template<std::size_t S, typename Head, typename... Tail>
static SPROUT_CONSTEXPR typename std::enable_if<
S != sizeof...(Tail),
copied_type
>::type make_impl(typename copied_type::size_type size, Head&& head, Tail&&... tail) {
return make_impl<S + 1>(size, sprout::forward<Tail>(tail)..., S >= size ? T() : sprout::forward<Head>(head));
}
public:
static SPROUT_CONSTEXPR typename copied_type::size_type length() {
return 0;
}
template<typename... Tail>
static SPROUT_CONSTEXPR typename copied_type::size_type length(T const& head, Tail&&... tail) {
return !head ? 0 : 1 + length(sprout::forward<Tail>(tail)...);
}
template<typename... Args>
static SPROUT_CONSTEXPR copied_type make(typename copied_type::size_type size, Args&&... args) {
return make_impl<0>(size, sprout::forward<Args>(args)...);
}
};
} // namespace detail
//
// container_construct_traits
//
template<typename T, std::size_t N, typename Traits>
struct container_construct_traits<sprout::basic_string<T, N, Traits> > {
public:
typedef sprout::basic_string<T, N, Traits> copied_type;
public:
template<typename Cont>
static SPROUT_CONSTEXPR copied_type deep_copy(Cont&& cont) {
return sprout::forward<Cont>(cont);
}
template<typename... Args>
static SPROUT_CONSTEXPR copied_type make(Args&&... args) {
typedef sprout::detail::make_construct_impl<copied_type> impl_type;
return impl_type::make(impl_type::length(sprout::forward<Args>(args)...), sprout::forward<Args>(args)...);
}
template<typename Cont, typename... Args>
static SPROUT_CONSTEXPR copied_type remake(
Cont&& cont,
typename sprout::container_traits<sprout::basic_string<T, N, Traits> >::difference_type size,
Args&&... args
)
{
typedef sprout::detail::make_construct_impl<copied_type> impl_type;
return impl_type::make(size, sprout::forward<Args>(args)...);
}
};
//
// container_transform_traits
//
template<typename T, std::size_t N, typename Traits>
struct container_transform_traits<sprout::basic_string<T, N, Traits> > {
public:
template<typename sprout::container_traits<sprout::basic_string<T, N, Traits> >::size_type Size>
struct rebind_size {
public:
typedef sprout::basic_string<T, Size, Traits> type;
};
};
//
// to_string
//
namespace detail {
template<typename T, std::size_t N, sprout::index_t... Indexes>
inline SPROUT_CONSTEXPR sprout::basic_string<T, N - 1> to_string_impl_1(
T const(& arr)[N],
typename sprout::basic_string<T, N - 1>::size_type n,
sprout::index_tuple<Indexes...>
)
{
return sprout::basic_string<T, N - 1>{{(Indexes < n ? arr[Indexes] : T())...}, n};
}
template<typename T, std::size_t N, sprout::index_t... Indexes>
inline SPROUT_CONSTEXPR sprout::basic_string<T, N - 1> to_string_impl(
T const(& arr)[N],
sprout::index_tuple<Indexes...>
)
{
return to_string_impl_1(arr, sprout::char_traits<T>::length(arr), sprout::index_tuple<Indexes...>());
}
} // namespace detail
template<typename T, std::size_t N>
inline SPROUT_CONSTEXPR sprout::basic_string<T, N - 1> to_string(T const(& arr)[N]) {
return sprout::detail::to_string_impl(arr, typename sprout::index_range<0, N - 1>::type());
}
//
// string_from_c_str
//
template<std::size_t N, typename T>
inline SPROUT_CONSTEXPR sprout::basic_string<T, N> string_from_c_str(T const* s, std::size_t n) {
return sprout::basic_string<T, N>::from_c_str(s, n);
}
template<std::size_t N, typename T>
inline SPROUT_CONSTEXPR sprout::basic_string<T, N> string_from_c_str(T const* s) {
return sprout::basic_string<T, N>::from_c_str(s);
}
//
// make_string
//
namespace detail {
template<typename T, std::size_t N, sprout::index_t... Indexes>
inline SPROUT_CONSTEXPR sprout::basic_string<T, N - 1> make_string_impl_1(
sprout::array<T, N> const& arr,
std::size_t n,
sprout::index_tuple<Indexes...>
)
{
return sprout::basic_string<T, N - 1>{{(Indexes < n ? arr[Indexes] : T())...}, n};
}
template<typename T, std::size_t N, sprout::index_t... Indexes>
inline SPROUT_CONSTEXPR sprout::basic_string<T, N - 1> make_string_impl(
sprout::array<T, N> const& arr,
sprout::index_tuple<Indexes...>
)
{
return sprout::detail::make_string_impl_1(
arr,
sprout::char_traits<T>::length(arr.begin()),
sprout::index_tuple<Indexes...>()
);
}
} // namespace detail
template<typename T, typename... Types>
inline SPROUT_CONSTEXPR sprout::basic_string<typename std::decay<T>::type, 1 + sizeof...(Types)>
make_string(T&& t, Types&&... args) {
return sprout::detail::make_string_impl(
sprout::make_array<typename std::decay<T>::type>(
sprout::forward<T>(t),
sprout::forward<Types>(args)...,
typename std::decay<T>::type()
),
typename sprout::index_range<0, 1 + sizeof...(Types)>::type()
);
}
//
// make_string_as
//
template<typename T>
inline SPROUT_CONSTEXPR sprout::basic_string<typename std::decay<T>::type, 0>
make_string_as() {
return sprout::basic_string<typename std::decay<T>::type, 0>{};
}
template<typename T, typename... Types>
inline SPROUT_CONSTEXPR sprout::basic_string<typename std::decay<T>::type, sizeof...(Types)>
make_string_as(Types&&... args) {
return sprout::detail::make_string_impl(
sprout::make_array<typename std::decay<T>::type>(
sprout::forward<Types>(args)...,
typename std::decay<T>::type()
),
typename sprout::index_range<0, 1 + sizeof...(Types)>::type()
);
}
//
// operator+
//
template<typename T, std::size_t N, typename Traits>
inline SPROUT_CONSTEXPR typename sprout::fixed::result_of::push_back<sprout::basic_string<T, N, Traits>, T>::type operator+(
sprout::basic_string<T, N, Traits> const& lhs,
T const& rhs
)
{
return sprout::fixed::push_back(lhs, rhs);
}
template<typename T, std::size_t N, typename Traits>
inline SPROUT_CONSTEXPR typename sprout::fixed::result_of::push_front<sprout::basic_string<T, N, Traits>, T>::type operator+(
T const& lhs,
sprout::basic_string<T, N, Traits> const& rhs
)
{
return sprout::fixed::push_front(rhs, lhs);
}
template<typename T, std::size_t N, typename Traits, std::size_t N2>
inline SPROUT_CONSTEXPR typename sprout::fixed::result_of::append_back<
sprout::basic_string<T, N, Traits>,
sprout::basic_string<T, N2 - 1, Traits>
>::type operator+(
sprout::basic_string<T, N, Traits> const& lhs,
T const (& rhs)[N2]
)
{
return sprout::fixed::append_back(lhs, sprout::to_string(rhs));
}
template<typename T, std::size_t N, typename Traits, std::size_t N2>
inline SPROUT_CONSTEXPR typename sprout::fixed::result_of::append_front<
sprout::basic_string<T, N, Traits>,
sprout::basic_string<T, N2 - 1, Traits>
>::type operator+(
T const (& lhs)[N2],
sprout::basic_string<T, N, Traits> const& rhs
)
{
return sprout::fixed::append_front(rhs, sprout::to_string(lhs));
}
template<typename T, std::size_t N, typename Traits, std::size_t N2>
inline SPROUT_CONSTEXPR typename sprout::fixed::result_of::append_back<
sprout::basic_string<T, N, Traits>,
sprout::basic_string<T, N2, Traits>
>::type operator+(
sprout::basic_string<T, N, Traits> const& lhs,
sprout::basic_string<T, N2, Traits> const& rhs
)
{
return sprout::fixed::append_back(lhs, rhs);
}
//
// string_t
//
template<std::size_t N>
struct string_t {
public:
typedef sprout::basic_string<char, N> type;
};
//
// wstring_t
//
template<std::size_t N>
struct wstring_t {
public:
typedef sprout::basic_string<wchar_t, N> type;
};
//
// u16string_t
//
template<std::size_t N>
struct u16string_t {
public:
typedef sprout::basic_string<char16_t, N> type;
};
//
// u32string_t
//
template<std::size_t N>
struct u32string_t {
public:
typedef sprout::basic_string<char32_t, N> type;
};
//
// is_basic_string
//
template<typename T>
struct is_basic_string
: public std::false_type
{};
template<typename T>
struct is_basic_string<T const>
: public sprout::is_basic_string<T>
{};
template<typename T>
struct is_basic_string<T const volatile>
: public sprout::is_basic_string<T>
{};
template<typename T, std::size_t N, typename Traits>
struct is_basic_string<sprout::basic_string<T, N, Traits> >
: public std::true_type
{};
//
// is_string_of
//
template<typename T, typename Elem>
struct is_string_of
: public std::false_type
{};
template<typename T, typename Elem>
struct is_string_of<T const, Elem>
: public sprout::is_string_of<T, Elem>
{};
template<typename T, typename Elem>
struct is_string_of<T const volatile, Elem>
: public sprout::is_string_of<T, Elem>
{};
template<typename T, std::size_t N, typename Traits, typename Elem>
struct is_string_of<sprout::basic_string<T, N, Traits>, Elem>
: public std::true_type
{};
//
// is_string
//
template<typename T>
struct is_string
: public sprout::is_string_of<T, char>
{};
//
// is_wstring
//
template<typename T>
struct is_wstring
: public sprout::is_string_of<T, wchar_t>
{};
//
// is_u16string
//
template<typename T>
struct is_u16string
: public sprout::is_string_of<T, char16_t>
{};
//
// is_u32string
//
template<typename T>
struct is_u32string
: public sprout::is_string_of<T, char32_t>
{};
} // namespace sprout
namespace std {
//
// tuple_size
//
template<typename T, std::size_t N, typename Traits>
struct tuple_size<sprout::basic_string<T, N, Traits> >
: public std::integral_constant<std::size_t, N>
{};
//
// tuple_element
//
template<std::size_t I, typename T, std::size_t N, typename Traits>
struct tuple_element<I, sprout::basic_string<T, N, Traits> > {
public:
static_assert(I < N, "tuple_element<>: index out of range");
typedef T type;
};
} // namespace std
#include <sprout/string/alias.hpp>
#endif // #ifndef SPROUT_STRING_HPP