Enum BreakClass

#[repr(u8)]
pub enum BreakClass {
    Mandatory = 0,
    CarriageReturn = 1,
    LineFeed = 2,
    CombiningMark = 3,
    NextLine = 4,
    Surrogate = 5,
    WordJoiner = 6,
    ZeroWidthSpace = 7,
    NonBreakingGlue = 8,
    Space = 9,
    ZeroWidthJoiner = 10,
    BeforeAndAfter = 11,
    After = 12,
    Before = 13,
    Hyphen = 14,
    Contingent = 15,
    ClosePunctuation = 16,
    CloseParenthesis = 17,
    Exclamation = 18,
    Inseparable = 19,
    NonStarter = 20,
    OpenPunctuation = 21,
    Quotation = 22,
    InfixSeparator = 23,
    Numeric = 24,
    Postfix = 25,
    Prefix = 26,
    Symbol = 27,
    Ambiguous = 28,
    Alphabetic = 29,
    ConditionalJapaneseStarter = 30,
    EmojiBase = 31,
    EmojiModifier = 32,
    HangulLvSyllable = 33,
    HangulLvtSyllable = 34,
    HebrewLetter = 35,
    Ideographic = 36,
    HangulLJamo = 37,
    HangulVJamo = 38,
    HangulTJamo = 39,
    RegionalIndicator = 40,
    ComplexContext = 41,
    Unknown = 42,
}

Unicode line breaking class.

Variants

Mandatory = 0

Cause a line break (after)

CarriageReturn = 1

Cause a line break (after), except between CR and LF

LineFeed = 2

Cause a line break (after)

CombiningMark = 3

Prohibit a line break between the character and the preceding character

NextLine = 4

Cause a line break (after)

Surrogate = 5

Do not occur in well-formed text

WordJoiner = 6

Prohibit line breaks before and after

ZeroWidthSpace = 7

Provide a break opportunity

NonBreakingGlue = 8

Prohibit line breaks before and after

Space = 9

Enable indirect line breaks

ZeroWidthJoiner = 10

Prohibit line breaks within joiner sequences

BeforeAndAfter = 11

Provide a line break opportunity before and after the character

After = 12

Generally provide a line break opportunity after the character

Before = 13

Generally provide a line break opportunity before the character

Hyphen = 14

Provide a line break opportunity after the character, except in numeric context

Contingent = 15

Provide a line break opportunity contingent on additional information

ClosePunctuation = 16

Prohibit line breaks before

CloseParenthesis = 17

Prohibit line breaks before

Exclamation = 18

Prohibit line breaks before

Inseparable = 19

Allow only indirect line breaks between pairs

NonStarter = 20

Allow only indirect line breaks before

OpenPunctuation = 21

Prohibit line breaks after

Quotation = 22

Act like they are both opening and closing

InfixSeparator = 23

Prevent breaks after any and before numeric

Numeric = 24

Form numeric expressions for line breaking purposes

Postfix = 25

Do not break following a numeric expression

Prefix = 26

Do not break in front of a numeric expression

Symbol = 27

Prevent a break before, and allow a break after

Ambiguous = 28

Act like AL when the resolved EAW is N; otherwise, act as ID

Alphabetic = 29

Are alphabetic characters or symbols that are used with alphabetic characters

ConditionalJapaneseStarter = 30

Treat as NS or ID for strict or normal breaking.

EmojiBase = 31

Do not break from following Emoji Modifier

EmojiModifier = 32

Do not break from preceding Emoji Base

HangulLvSyllable = 33

Form Korean syllable blocks

HangulLvtSyllable = 34

Form Korean syllable blocks

HebrewLetter = 35

Do not break around a following hyphen; otherwise act as Alphabetic

Ideographic = 36

Break before or after, except in some numeric context

HangulLJamo = 37

Form Korean syllable blocks

HangulVJamo = 38

Form Korean syllable blocks

HangulTJamo = 39

Form Korean syllable blocks

RegionalIndicator = 40

Keep pairs together. For pairs, break before and after other classes

ComplexContext = 41

Provide a line break opportunity contingent on additional, language-specific context analysis

Unknown = 42

Have as yet unknown line breaking behavior or unassigned code positions

Trait Implementations

impl Clone for BreakClass

fn clone(&self) -> BreakClass

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for BreakClass

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Hash for BreakClass

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for BreakClass

fn eq(&self, other: &BreakClass) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for BreakClass

impl Eq for BreakClass

impl StructuralPartialEq for BreakClass