Enum unicode_linebreak::BreakClass

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#[repr(u8)]pub enum BreakClass {
    Mandatory,
    CarriageReturn,
    LineFeed,
    CombiningMark,
    NextLine,
    Surrogate,
    WordJoiner,
    ZeroWidthSpace,
    NonBreakingGlue,
    Space,
    ZeroWidthJoiner,
    BeforeAndAfter,
    After,
    Before,
    Hyphen,
    Contingent,
    ClosePunctuation,
    CloseParenthesis,
    Exclamation,
    Inseparable,
    NonStarter,
    OpenPunctuation,
    Quotation,
    InfixSeparator,
    Numeric,
    Postfix,
    Prefix,
    Symbol,
    Ambiguous,
    Alphabetic,
    ConditionalJapaneseStarter,
    EmojiBase,
    EmojiModifier,
    HangulLvSyllable,
    HangulLvtSyllable,
    HebrewLetter,
    Ideographic,
    HangulLJamo,
    HangulVJamo,
    HangulTJamo,
    RegionalIndicator,
    ComplexContext,
    Unknown,
}

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Unicode line breaking class.

Variants

Mandatory

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Cause a line break (after)

CarriageReturn

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

LineFeed

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Cause a line break (after)

CombiningMark

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Prohibit a line break between the character and the preceding character

NextLine

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Cause a line break (after)

Surrogate

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Do not occur in well-formed text

WordJoiner

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Prohibit line breaks before and after

ZeroWidthSpace

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Provide a break opportunity

NonBreakingGlue

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Prohibit line breaks before and after

Space

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Enable indirect line breaks

ZeroWidthJoiner

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Prohibit line breaks within joiner sequences

BeforeAndAfter

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Provide a line break opportunity before and after the character

After

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Generally provide a line break opportunity after the character

Before

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Generally provide a line break opportunity before the character

Hyphen

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

Contingent

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Provide a line break opportunity contingent on additional information

ClosePunctuation

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Prohibit line breaks before

CloseParenthesis

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Prohibit line breaks before

Exclamation

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Prohibit line breaks before

Inseparable

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Allow only indirect line breaks between pairs

NonStarter

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Allow only indirect line breaks before

OpenPunctuation

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Prohibit line breaks after

Quotation

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Act like they are both opening and closing

InfixSeparator

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Prevent breaks after any and before numeric

Numeric

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Form numeric expressions for line breaking purposes

Postfix

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Do not break following a numeric expression

Prefix

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Do not break in front of a numeric expression

Symbol

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Prevent a break before, and allow a break after

Ambiguous

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

Alphabetic

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Are alphabetic characters or symbols that are used with alphabetic characters

ConditionalJapaneseStarter

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Treat as NS or ID for strict or normal breaking.

EmojiBase

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Do not break from following Emoji Modifier

EmojiModifier

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Do not break from preceding Emoji Base

HangulLvSyllable

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Form Korean syllable blocks

HangulLvtSyllable

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Form Korean syllable blocks

HebrewLetter

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

Ideographic

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Break before or after, except in some numeric context

HangulLJamo

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Form Korean syllable blocks

HangulVJamo

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Form Korean syllable blocks

HangulTJamo

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Form Korean syllable blocks

RegionalIndicator

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

ComplexContext

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

Unknown

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Have as yet unknown line breaking behavior or unassigned code positions

Trait Implementations

impl Clone for BreakClass[+]

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fn clone(&self) -> BreakClass[−]

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)[−]

Performs copy-assignment from source.

impl Copy for BreakClass

impl Debug for BreakClass[+]

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

Formats the value using the given formatter.

impl Eq for BreakClass

impl Hash for BreakClass[+]

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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, [−]

Feeds a slice of this type into the given Hasher.

impl PartialEq<BreakClass> for BreakClass[+]

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

This method tests for self and other values to be equal, and is used by ==.

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#[must_use]fn ne(&self, other: &Rhs) -> bool[−]

This method tests for !=.

impl StructuralEq for BreakClass

impl StructuralPartialEq for BreakClass