Module props

This module defines all available properties.

Properties may be empty marker types and implement BinaryProperty, or enumerations¹ and implement EnumeratedProperty.

BinaryPropertys are queried through a CodePointSetData, while EnumeratedPropertys are queried through CodePointMapData.

In addition, some EnumeratedPropertys also implement ParseableEnumeratedProperty or NamedEnumeratedProperty. For these properties, PropertyParser, PropertyNamesLong, and PropertyNamesShort can be constructed.

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1. either Rust enums, or Rust structs with associated constants (open enums) ↩

Structs

Alnum

Characters with the Alphabetic or Decimal_Number property.

Alphabetic

Alphabetic characters.

AsciiHexDigit

ASCII characters commonly used for the representation of hexadecimal numbers.

BasicEmoji

Characters and character sequences intended for general-purpose, independent, direct input.

BidiClass

Enumerated property Bidi_Class

BidiControl

Format control characters which have specific functions in the Unicode Bidirectional Algorithm.

BidiMirrored

Characters that are mirrored in bidirectional text.

BidiMirroringGlyph

This is a bitpacked combination of the Bidi_Mirroring_Glyph, Bidi_Mirrored, and Bidi_Paired_Bracket_Type properties.

Blank

Horizontal whitespace characters

CanonicalCombiningClass

Property Canonical_Combining_Class. See UAX #15: https://www.unicode.org/reports/tr15/.

CaseIgnorable

Characters which are ignored for casing purposes.

CaseSensitive

Characters that are either the source of a case mapping or in the target of a case mapping.

Cased

Uppercase, lowercase, and titlecase characters.

ChangesWhenCasefolded

Characters whose normalized forms are not stable under case folding.

ChangesWhenCasemapped

Characters which may change when they undergo case mapping.

ChangesWhenLowercased

Characters whose normalized forms are not stable under a toLowercase mapping.

ChangesWhenNfkcCasefolded

Characters which are not identical to their NFKC_Casefold mapping.

ChangesWhenTitlecased

Characters whose normalized forms are not stable under a toTitlecase mapping.

ChangesWhenUppercased

Characters whose normalized forms are not stable under a toUppercase mapping.

Dash

Punctuation characters explicitly called out as dashes in the Unicode Standard, plus their compatibility equivalents.

DefaultIgnorableCodePoint

For programmatic determination of default ignorable code points.

Deprecated

Deprecated characters.

Diacritic

Characters that linguistically modify the meaning of another character to which they apply.

EastAsianWidth

Enumerated property East_Asian_Width.

Emoji

Characters that are emoji.

EmojiComponent

Characters used in emoji sequences that normally do not appear on emoji keyboards as separate choices, such as base characters for emoji keycaps.

EmojiModifier

Characters that are emoji modifiers.

EmojiModifierBase

Characters that can serve as a base for emoji modifiers.

EmojiPresentation

Characters that have emoji presentation by default.

ExtendedPictographic

Pictographic symbols, as well as reserved ranges in blocks largely associated with emoji characters

Extender

Characters whose principal function is to extend the value of a preceding alphabetic character or to extend the shape of adjacent characters.

FullCompositionExclusion

Characters that are excluded from composition.

GeneralCategoryGroup

Groupings of multiple General_Category property values.

GeneralCategoryOutOfBoundsError

Error value for impl TryFrom<u8> for GeneralCategory.

Graph

Invisible characters.

GraphemeBase

Property used together with the definition of Standard Korean Syllable Block to define “Grapheme base”.

GraphemeClusterBreak

Enumerated property Grapheme_Cluster_Break.

GraphemeExtend

Property used to define “Grapheme extender”.

GraphemeLink

Deprecated property.

HangulSyllableType

Enumerated property Hangul_Syllable_Type

HexDigit

Characters commonly used for the representation of hexadecimal numbers, plus their compatibility equivalents.

Hyphen

Deprecated property.

IdContinue

Characters that can come after the first character in an identifier.

IdStart

Characters that can begin an identifier.

Ideographic

Characters considered to be CJKV (Chinese, Japanese, Korean, and Vietnamese) ideographs, or related siniform ideographs

IdsBinaryOperator

Characters used in Ideographic Description Sequences.

IdsTrinaryOperator

Characters used in Ideographic Description Sequences.

IndicSyllabicCategory

Property Indic_Syllabic_Category. See UAX #44: https://www.unicode.org/reports/tr44/#Indic_Syllabic_Category.

JoinControl

Format control characters which have specific functions for control of cursive joining and ligation.

JoiningType

Enumerated property Joining_Type.

LineBreak

Enumerated property Line_Break.

LogicalOrderException

A small number of spacing vowel letters occurring in certain Southeast Asian scripts such as Thai and Lao.

Lowercase

Lowercase characters.

Math

Characters used in mathematical notation.

NfcInert

Characters that are inert under NFC, i.e., they do not interact with adjacent characters.

NfdInert

Characters that are inert under NFD, i.e., they do not interact with adjacent characters.

NfkcInert

Characters that are inert under NFKC, i.e., they do not interact with adjacent characters.

NfkdInert

Characters that are inert under NFKD, i.e., they do not interact with adjacent characters.

NoncharacterCodePoint

Code points permanently reserved for internal use.

PatternSyntax

Characters used as syntax in patterns (such as regular expressions).

PatternWhiteSpace

Characters used as whitespace in patterns (such as regular expressions).

PrependedConcatenationMark

A small class of visible format controls, which precede and then span a sequence of other characters, usually digits.

Print

Printable characters (visible characters and whitespace).

QuotationMark

Punctuation characters that function as quotation marks.

Radical

Characters used in the definition of Ideographic Description Sequences.

RegionalIndicator

Regional indicator characters, U+1F1E6..U+1F1FF.

Script

Enumerated property Script.

SegmentStarter

Characters that are starters in terms of Unicode normalization and combining character sequences.

SentenceBreak

Enumerated property Sentence_Break.

SentenceTerminal

Punctuation characters that generally mark the end of sentences.

SoftDotted

Characters with a “soft dot”, like i or j.

TerminalPunctuation

Punctuation characters that generally mark the end of textual units.

UnifiedIdeograph

A property which specifies the exact set of Unified CJK Ideographs in the standard.

Uppercase

Uppercase characters.

VariationSelector

Characters that are Variation Selectors.

VerticalOrientation

Property Vertical_Orientation

WhiteSpace

Spaces, separator characters and other control characters which should be treated by programming languages as “white space” for the purpose of parsing elements.

WordBreak

Enumerated property Word_Break.

Xdigit

Hexadecimal digits

XidContinue

Characters that can come after the first character in an identifier.

XidStart

Characters that can begin an identifier.

Enums

BidiPairedBracketType

The enum represents Bidi_Paired_Bracket_Type.

GeneralCategory

Enumerated property General_Category.

Traits

BinaryProperty

A binary Unicode character property.

EmojiSet

An Emoji set as defined by Unicode Technical Standard #51.

EnumeratedProperty

A Unicode character property that assigns a value to each code point.

NamedEnumeratedProperty

A property whose value names can be represented as strings.

ParseableEnumeratedProperty

A property whose value names can be parsed from strings.