arg_router::utility::utf8::code_point Namespace Reference

Classes
class	range
class	iterator

Typedefs
using	type = std::uint32_t

Functions
constexpr std::size_t	count (std::string_view str) noexcept
constexpr std::size_t	size (std::string_view str) noexcept
constexpr std::optional< type >	decode (std::string_view str) noexcept

Detailed Description

Namespace for UTF-8 code point types and functions.

Typedef Documentation

type

using arg_router::utility::utf8::code_point::type = typedef std::uint32_t

Code point type.

Definition at line 16 of file code_point.hpp.

Function Documentation

count()

constexpr std::size_t arg_router::utility::utf8::code_point::count ( std::string_view  str )

inlineconstexprnoexcept

Number of UTF-8 code points in the string.

Parameters

str	Input string

Returns

Number of code points

Definition at line 129 of file code_point.hpp.

decode()

constexpr std::optional<type> arg_router::utility::utf8::code_point::decode ( std::string_view  str )

inlineconstexprnoexcept

Decodes the leading code point of str into the underlying numerical representation.

Only up to the first four bytes of str are read. Undefined behaviour if str is malformed.

Parameters

str	Code point

Returns

Number, or empty optional if str is empty or there are not enough bytes in str to read the entire code point

Definition at line 184 of file code_point.hpp.

size()

constexpr std::size_t arg_router::utility::utf8::code_point::size ( std::string_view  str )

inlineconstexprnoexcept

Returns the size in bytes for the leading code point of str

Parameters

str	Input string

Returns

Size in bytes, zero if str is empty

Definition at line 148 of file code_point.hpp.