sol::unicode::unicode_detail Struct Reference

#include <sol.hpp>

Static Public Member Functions
static constexpr bool	is_lead_surrogate (char32_t u)
static constexpr bool	is_trail_surrogate (char32_t u)
static constexpr bool	is_surrogate (char32_t u)
static constexpr int	sequence_length (unsigned char b)
static constexpr char32_t	decode (unsigned char b0, unsigned char b1)
static constexpr char32_t	decode (unsigned char b0, unsigned char b1, unsigned char b2)
static constexpr char32_t	decode (unsigned char b0, unsigned char b1, unsigned char b2, unsigned char b3)
static char32_t	combine_surrogates (char16_t lead, char16_t trail)

Static Public Attributes
static constexpr char32_t	last_code_point = 0x10FFFF
static constexpr char32_t	first_lead_surrogate = 0xD800
static constexpr char32_t	last_lead_surrogate = 0xDBFF
static constexpr char32_t	first_trail_surrogate = 0xDC00
static constexpr char32_t	last_trail_surrogate = 0xDFFF
static constexpr char32_t	first_surrogate = first_lead_surrogate
static constexpr char32_t	last_surrogate = last_trail_surrogate
static constexpr auto	last_1byte_value = 0x7Fu
static constexpr auto	last_2byte_value = 0x7FFu
static constexpr auto	last_3byte_value = 0xFFFFu
static constexpr auto	start_2byte_mask = 0x80u
static constexpr auto	start_3byte_mask = 0xE0u
static constexpr auto	start_4byte_mask = 0xF0u
static constexpr auto	continuation_mask = 0xC0u
static constexpr auto	continuation_signature = 0x80u
static constexpr char32_t	last_bmp_value = 0xFFFF
static constexpr char32_t	normalizing_value = 0x10000
static constexpr int	lead_surrogate_bitmask = 0xFFC00
static constexpr int	trail_surrogate_bitmask = 0x3FF
static constexpr int	lead_shifted_bits = 10
static constexpr char32_t	replacement = 0xFFFD

Member Function Documentation

combine_surrogates()

static char32_t sol::unicode::unicode_detail::combine_surrogates ( char16_t  lead, char16_t  trail  )

inlinestatic

                                                                              {
                auto hi = lead - first_lead_surrogate;
                auto lo = trail - first_trail_surrogate;
                return normalizing_value + ((hi << lead_shifted_bits) | lo);
            }

decode() [1/3]

static constexpr char32_t sol::unicode::unicode_detail::decode ( unsigned char  b0, unsigned char  b1  )

inlinestatic

                                                                                 {
                return ((b0 & 0x1F) << 6) | (b1 & 0x3F);
            }

decode() [2/3]

static constexpr char32_t sol::unicode::unicode_detail::decode ( unsigned char  b0, unsigned char  b1, unsigned char  b2  )

inlinestatic

                                                                                                   {
                return ((b0 & 0x0F) << 12) | ((b1 & 0x3F) << 6) | (b2 & 0x3F);
            }

decode() [3/3]

static constexpr char32_t sol::unicode::unicode_detail::decode ( unsigned char  b0, unsigned char  b1, unsigned char  b2, unsigned char  b3  )

inlinestatic

                                                                                                                     {
                return ((b0 & 0x07) << 18) | ((b1 & 0x3F) << 12) | ((b2 & 0x3F) << 6) | (b3 & 0x3F);
            }

is_lead_surrogate()

static constexpr bool sol::unicode::unicode_detail::is_lead_surrogate ( char32_t  u )

inlinestatic

                                                                {
                return u >= first_lead_surrogate && u <= last_lead_surrogate;
            }

is_surrogate()

static constexpr bool sol::unicode::unicode_detail::is_surrogate ( char32_t  u )

inlinestatic

                                                           {
                return u >= first_surrogate && u <= last_surrogate;
            }

is_trail_surrogate()

static constexpr bool sol::unicode::unicode_detail::is_trail_surrogate ( char32_t  u )

inlinestatic

                                                                 {
                return u >= first_trail_surrogate && u <= last_trail_surrogate;
            }

sequence_length()

static constexpr int sol::unicode::unicode_detail::sequence_length ( unsigned char  b )

inlinestatic

                                                                  {
                return (b & start_2byte_mask) == 0 ? 1
                    : (b & start_3byte_mask) != start_3byte_mask ? 2
                    : (b & start_4byte_mask) != start_4byte_mask ? 3
                    : 4;
            }

Member Data Documentation

continuation_mask

constexpr auto sol::unicode::unicode_detail::continuation_mask = 0xC0u

static

continuation_signature

constexpr auto sol::unicode::unicode_detail::continuation_signature = 0x80u

static

first_lead_surrogate

constexpr char32_t sol::unicode::unicode_detail::first_lead_surrogate = 0xD800

static

first_surrogate

constexpr char32_t sol::unicode::unicode_detail::first_surrogate = first_lead_surrogate

static

first_trail_surrogate

constexpr char32_t sol::unicode::unicode_detail::first_trail_surrogate = 0xDC00

static

last_1byte_value

constexpr auto sol::unicode::unicode_detail::last_1byte_value = 0x7Fu

static

last_2byte_value

constexpr auto sol::unicode::unicode_detail::last_2byte_value = 0x7FFu

static

last_3byte_value

constexpr auto sol::unicode::unicode_detail::last_3byte_value = 0xFFFFu

static

last_bmp_value

constexpr char32_t sol::unicode::unicode_detail::last_bmp_value = 0xFFFF

static

last_code_point

constexpr char32_t sol::unicode::unicode_detail::last_code_point = 0x10FFFF

static

last_lead_surrogate

constexpr char32_t sol::unicode::unicode_detail::last_lead_surrogate = 0xDBFF

static

last_surrogate

constexpr char32_t sol::unicode::unicode_detail::last_surrogate = last_trail_surrogate

static

last_trail_surrogate

constexpr char32_t sol::unicode::unicode_detail::last_trail_surrogate = 0xDFFF

static

lead_shifted_bits

constexpr int sol::unicode::unicode_detail::lead_shifted_bits = 10

static

lead_surrogate_bitmask

constexpr int sol::unicode::unicode_detail::lead_surrogate_bitmask = 0xFFC00

static

normalizing_value

constexpr char32_t sol::unicode::unicode_detail::normalizing_value = 0x10000

static

replacement

constexpr char32_t sol::unicode::unicode_detail::replacement = 0xFFFD

static

start_2byte_mask

constexpr auto sol::unicode::unicode_detail::start_2byte_mask = 0x80u

static

start_3byte_mask

constexpr auto sol::unicode::unicode_detail::start_3byte_mask = 0xE0u

static

start_4byte_mask

constexpr auto sol::unicode::unicode_detail::start_4byte_mask = 0xF0u

static

trail_surrogate_bitmask

constexpr int sol::unicode::unicode_detail::trail_surrogate_bitmask = 0x3FF

static

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The documentation for this struct was generated from the following file:

• external/sol.hpp