utf8::internal Namespace Reference

Enumerations
enum	utf_error {   OK , NOT_ENOUGH_ROOM , INVALID_LEAD , INCOMPLETE_SEQUENCE ,   OVERLONG_SEQUENCE , INVALID_CODE_POINT }

Functions
constexpr bool	is_trail (uint8_t oc)
constexpr bool	is_surrogate (uint32_t cp)
constexpr bool	is_code_point_valid (uint32_t cp)
constexpr unsigned	sequence_length (uint8_t lead)
template<typename octet_iterator >
constexpr utf_error	validate_next (octet_iterator &it, octet_iterator end, uint32_t *code_point)
template<typename octet_iterator >
constexpr utf_error	validate_next (octet_iterator &it, octet_iterator end)

Variables
constexpr uint16_t	LEAD_SURROGATE_MIN = 0xd800u
constexpr uint16_t	LEAD_SURROGATE_MAX = 0xdbffu
constexpr uint16_t	TRAIL_SURROGATE_MIN = 0xdc00u
constexpr uint16_t	TRAIL_SURROGATE_MAX = 0xdfffu
constexpr uint16_t	LEAD_OFFSET = LEAD_SURROGATE_MIN - (0x10000 >> 10)
constexpr uint32_t	SURROGATE_OFFSET = 0x10000u - (LEAD_SURROGATE_MIN << 10) - TRAIL_SURROGATE_MIN
constexpr uint32_t	CODE_POINT_MAX = 0x0010ffffu

Enumeration Type Documentation

utf_error

enum utf8::internal::utf_error

Enumerator
OK
NOT_ENOUGH_ROOM
INVALID_LEAD
INCOMPLETE_SEQUENCE
OVERLONG_SEQUENCE
INVALID_CODE_POINT

Definition at line 90 of file utf8_core.hh.

Function Documentation

is_code_point_valid()

constexpr bool utf8::internal::is_code_point_valid ( uint32_t  cp )

constexpr

Definition at line 69 of file utf8_core.hh.

References CODE_POINT_MAX, and is_surrogate().

Referenced by utf8::append(), and validate_next().

is_surrogate()

constexpr bool utf8::internal::is_surrogate ( uint32_t  cp )

constexpr

Definition at line 64 of file utf8_core.hh.

References LEAD_SURROGATE_MIN, and TRAIL_SURROGATE_MAX.

Referenced by is_code_point_valid(), utf8::utf16to8(), and utf8::unchecked::utf16to8().

is_trail()

constexpr bool utf8::internal::is_trail ( uint8_t  oc )

constexpr

Definition at line 59 of file utf8_core.hh.

Referenced by utf8::unchecked::prior(), utf8::prior(), utf8::replace_invalid(), utf8::sync_backward(), utf8::sync_forward(), and validate_next().

sequence_length()

constexpr unsigned utf8::internal::sequence_length ( uint8_t  lead )

constexpr

Definition at line 75 of file utf8_core.hh.

Referenced by utf8::unchecked::next(), utf8::unchecked::iterator< octet_iterator >::operator++(), and validate_next().

validate_next() [1/2]

template<typename octet_iterator >

constexpr utf_error utf8::internal::validate_next ( octet_iterator &  it, octet_iterator  end  )

constexpr

Definition at line 202 of file utf8_core.hh.

References end(), and validate_next().

validate_next() [2/2]

template<typename octet_iterator >

constexpr utf_error utf8::internal::validate_next ( octet_iterator &  it, octet_iterator  end, uint32_t *  code_point  )

constexpr

Definition at line 100 of file utf8_core.hh.

References utf8::advance(), utf8::distance(), end(), INCOMPLETE_SEQUENCE, INVALID_CODE_POINT, INVALID_LEAD, is_code_point_valid(), is_trail(), gl::length(), NOT_ENOUGH_ROOM, OK, OVERLONG_SEQUENCE, repeat(), and sequence_length().

Referenced by utf8::find_invalid(), utf8::next(), utf8::replace_invalid(), and validate_next().

Variable Documentation

CODE_POINT_MAX

constexpr uint32_t utf8::internal::CODE_POINT_MAX = 0x0010ffffu

inlineconstexpr

Definition at line 57 of file utf8_core.hh.

Referenced by utf8::append(), and is_code_point_valid().

LEAD_OFFSET

constexpr uint16_t utf8::internal::LEAD_OFFSET = LEAD_SURROGATE_MIN - (0x10000 >> 10)

inlineconstexpr

Definition at line 53 of file utf8_core.hh.

Referenced by utf8::utf8to16(), and utf8::unchecked::utf8to16().

LEAD_SURROGATE_MAX

constexpr uint16_t utf8::internal::LEAD_SURROGATE_MAX = 0xdbffu

inlineconstexpr

Definition at line 50 of file utf8_core.hh.

LEAD_SURROGATE_MIN

constexpr uint16_t utf8::internal::LEAD_SURROGATE_MIN = 0xd800u

inlineconstexpr

Definition at line 49 of file utf8_core.hh.

Referenced by is_surrogate().

SURROGATE_OFFSET

constexpr uint32_t utf8::internal::SURROGATE_OFFSET = 0x10000u - (LEAD_SURROGATE_MIN << 10) - TRAIL_SURROGATE_MIN

inlineconstexpr

Definition at line 54 of file utf8_core.hh.

Referenced by utf8::utf16to8(), and utf8::unchecked::utf16to8().

TRAIL_SURROGATE_MAX

constexpr uint16_t utf8::internal::TRAIL_SURROGATE_MAX = 0xdfffu

inlineconstexpr

Definition at line 52 of file utf8_core.hh.

Referenced by is_surrogate(), and utf8::utf16to8().

TRAIL_SURROGATE_MIN

constexpr uint16_t utf8::internal::TRAIL_SURROGATE_MIN = 0xdc00u

inlineconstexpr

Definition at line 51 of file utf8_core.hh.

Referenced by utf8::utf16to8(), utf8::utf8to16(), and utf8::unchecked::utf8to16().