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变更 kqm.str.utf 中的部分命名

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keqingmoe 2025-03-12 13:24:28 +08:00
parent ea1007a31f
commit 1534128144
1 changed files with 20 additions and 20 deletions
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40
module/utf.cppm
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@ -24,17 +24,17 @@ namespace utf
{ {
template <typename T> template <typename T>
concept Utf8CharOrByteType = std::same_as<T, std::byte> || std::same_as<T, char> || std::same_as<T, char8_t>; concept Utf8CharOrByte = std::same_as<T, std::byte> || std::same_as<T, char> || std::same_as<T, char8_t>;
template <typename T> template <typename T>
concept Utf32CharType = std::same_as<T, char32_t> || std::same_as<T, std::uint32_t>; concept Utf32Char = std::same_as<T, char32_t> || std::same_as<T, std::uint32_t>;
template <typename In> template <typename In>
concept Utf8ByteIterator = std::input_iterator<In> concept Utf8ByteIterator = std::input_iterator<In>
&& (std::convertible_to<std::iter_value_t<In>, std::byte> && (std::convertible_to<std::iter_value_t<In>, std::byte>
|| Utf8CharOrByteType<std::remove_cvref_t<std::iter_value_t<In>>>); || Utf8CharOrByte<std::remove_cvref_t<std::iter_value_t<In>>>);
template <Utf32CharType Char> template <Utf32Char Char>
constexpr auto is_valid_codepoint(Char codepoint) noexcept constexpr auto is_valid_codepoint(Char codepoint) noexcept
{ {
const auto cp = static_cast<std::uint32_t>(codepoint); const auto cp = static_cast<std::uint32_t>(codepoint);
@ -42,7 +42,7 @@ constexpr auto is_valid_codepoint(Char codepoint) noexcept
return !(cp > 0x10'FFFF || (cp >= 0xD800 && cp <= 0xDFFF)); return !(cp > 0x10'FFFF || (cp >= 0xD800 && cp <= 0xDFFF));
} }
template <Utf32CharType Char> template <Utf32Char Char>
constexpr auto is_valid_utf8_byte(Char byte) noexcept constexpr auto is_valid_utf8_byte(Char byte) noexcept
{ {
const auto value = static_cast<std::uint8_t>(byte); const auto value = static_cast<std::uint8_t>(byte);
@ -53,7 +53,7 @@ constexpr auto is_valid_utf8_byte(Char byte) noexcept
return true; return true;
} }
template <Utf32CharType Char> template <Utf32Char Char>
constexpr auto utf8_length_from_utf32(Char codepoint) noexcept -> std::size_t constexpr auto utf8_length_from_utf32(Char codepoint) noexcept -> std::size_t
{ {
const auto cp = static_cast<std::uint32_t>(codepoint); const auto cp = static_cast<std::uint32_t>(codepoint);
@ -69,7 +69,7 @@ constexpr auto utf8_length_from_utf32(Char codepoint) noexcept -> std::size_t
} }
} }
template <Utf8CharOrByteType Byte> template <Utf8CharOrByte Byte>
constexpr auto utf8_lead_byte_length(Byte lead) noexcept -> std::size_t constexpr auto utf8_lead_byte_length(Byte lead) noexcept -> std::size_t
{ {
auto byte = static_cast<std::uint8_t>(lead); auto byte = static_cast<std::uint8_t>(lead);
@ -81,7 +81,7 @@ constexpr auto utf8_lead_byte_length(Byte lead) noexcept -> std::size_t
} }
template <std::input_or_output_iterator Out> template <std::input_or_output_iterator Out>
requires Utf8CharOrByteType<std::remove_reference_t<std::iter_reference_t<Out>>> requires Utf8CharOrByte<std::remove_reference_t<std::iter_reference_t<Out>>>
&& std::output_iterator<Out, std::remove_reference_t<std::iter_reference_t<Out>>> && std::output_iterator<Out, std::remove_reference_t<std::iter_reference_t<Out>>>
auto utf32_to_utf8(char32_t codepoint, Out out) noexcept auto utf32_to_utf8(char32_t codepoint, Out out) noexcept
{ {
@ -146,7 +146,7 @@ constexpr auto utf8_to_utf32(In in) noexcept -> std::pair<char32_t, In>
} }
template <Utf8ByteIterator Iter> template <Utf8ByteIterator Iter>
struct utf8_iterator struct utf8_to_utf32_iterator
{ {
private: private:
Iter iter_; Iter iter_;
@ -162,28 +162,28 @@ public:
using value_type = char32_t; using value_type = char32_t;
using difference_type = std::ptrdiff_t; using difference_type = std::ptrdiff_t;
explicit constexpr utf8_iterator() noexcept = default; explicit constexpr utf8_to_utf32_iterator() noexcept = default;
explicit constexpr utf8_iterator(Iter iter) noexcept : iter_{iter} {} explicit constexpr utf8_to_utf32_iterator(Iter iter) noexcept : iter_{iter} {}
constexpr auto operator*() const noexcept -> char32_t constexpr auto operator*() const noexcept -> char32_t
{ {
return utf8_to_utf32(iter_).first; return utf8_to_utf32(iter_).first;
} }
constexpr auto operator++(this utf8_iterator& self) noexcept -> utf8_iterator& constexpr auto operator++(this utf8_to_utf32_iterator& self) noexcept -> utf8_to_utf32_iterator&
{ {
std::advance(self.iter_, utf8_lead_byte_length(*self.iter_)); std::advance(self.iter_, utf8_lead_byte_length(*self.iter_));
return self; return self;
} }
constexpr auto operator++(this utf8_iterator self, int) noexcept -> utf8_iterator constexpr auto operator++(this utf8_to_utf32_iterator self, int) noexcept -> utf8_to_utf32_iterator
{ {
++self; ++self;
return self; return self;
} }
constexpr auto operator--(this utf8_iterator& self) noexcept -> utf8_iterator& constexpr auto operator--(this utf8_to_utf32_iterator& self) noexcept -> utf8_to_utf32_iterator&
requires std::bidirectional_iterator<Iter> requires std::bidirectional_iterator<Iter>
{ {
do { do {
@ -192,7 +192,7 @@ public:
return self; return self;
} }
constexpr auto operator--(this utf8_iterator self, int) noexcept -> utf8_iterator constexpr auto operator--(this utf8_to_utf32_iterator self, int) noexcept -> utf8_to_utf32_iterator
requires std::bidirectional_iterator<Iter> requires std::bidirectional_iterator<Iter>
{ {
--self; --self;
@ -206,7 +206,7 @@ public:
}; };
template <typename T, typename U> template <typename T, typename U>
constexpr auto operator==(const utf8_iterator<T>& lhs, const utf8_iterator<U>& rhs) constexpr auto operator==(const utf8_to_utf32_iterator<T>& lhs, const utf8_to_utf32_iterator<U>& rhs)
noexcept(noexcept(lhs.base() == rhs.base())) -> bool noexcept(noexcept(lhs.base() == rhs.base())) -> bool
requires std::equality_comparable_with<T, U> requires std::equality_comparable_with<T, U>
{ {
@ -214,7 +214,7 @@ constexpr auto operator==(const utf8_iterator<T>& lhs, const utf8_iterator<U>& r
} }
template <typename T, typename U> template <typename T, typename U>
constexpr auto operator<=>(const utf8_iterator<T>& lhs, const utf8_iterator<U>& rhs) constexpr auto operator<=>(const utf8_to_utf32_iterator<T>& lhs, const utf8_to_utf32_iterator<U>& rhs)
noexcept(noexcept(lhs.base() <=> rhs.base())) noexcept(noexcept(lhs.base() <=> rhs.base()))
requires std::three_way_comparable_with<T, U> requires std::three_way_comparable_with<T, U>
{ {
@ -223,7 +223,7 @@ constexpr auto operator<=>(const utf8_iterator<T>& lhs, const utf8_iterator<U>&
constexpr auto iterate_utf8(Utf8ByteIterator auto iter) noexcept constexpr auto iterate_utf8(Utf8ByteIterator auto iter) noexcept
{ {
return utf8_iterator{std::move(iter)}; return utf8_to_utf32_iterator{std::move(iter)};
} }
constexpr auto iterate_utf8(Utf8ByteIterator auto first, Utf8ByteIterator auto last) noexcept constexpr auto iterate_utf8(Utf8ByteIterator auto first, Utf8ByteIterator auto last) noexcept
@ -242,7 +242,7 @@ constexpr auto iterate_utf8(Iter first, Sentinel last) noexcept
} }
struct as_utf32_t : std::ranges::range_adaptor_closure<as_utf32_t> struct from_utf8_to_utf32_t : std::ranges::range_adaptor_closure<from_utf8_to_utf32_t>
{ {
static constexpr auto operator()(std::ranges::range auto&& r) noexcept static constexpr auto operator()(std::ranges::range auto&& r) noexcept
{ {
@ -258,7 +258,7 @@ export namespace kqm
namespace ranges::views namespace ranges::views
{ {
constexpr auto as_utf32 = as_utf32_t{}; constexpr auto from_utf8_to_utf32 = from_utf8_to_utf32_t{};
} }