aat-features.md

Apple Advanced Typography features

The AAT specification defines the following "feature" codes.

• kAllTypographicFeatures All Typographic Features
• kLigatures Ligatures (non-exclusive set)
• kRequiredLigaturesOnSelector Required Ligatures
• kCommonLigaturesOnSelector Common Ligatures
• kRareLigaturesOnSelector Rare Ligatures
• kLogosOnSelector Logos, deprecated
• kRebusPicturesOnSelector Rebus Pictures
• kDiphthongLigaturesOnSelector Diphthong Ligatures
• kSquaredLigaturesOnSelector Squared Ligatures
• kAbbrevSquaredLigaturesOnSelector Squared Ligatures, Abbreviated
• kSymbolLigaturesOnSelector Symbol Ligatures
• kContextualLigaturesOnSelector Contextual Ligatures
• kHistoricalLigaturesOnSelector Historical Ligatures
• kCursiveConnection Cursive Connection (non-exclusive set)
• kUnconnectedSelector Unconnected
• kPartiallyConnectedSelector Partially Connected
• kCursiveSelector Cursive
• kLetterCase Letter Case (non-exclusive set), deprecated
• kUpperAndLowerCaseSelectorUpper & Lower Case, deprecated
• kAllCapsSelectorAll Caps, deprecated
• kAllLowerCaseSelectorAll Lower Case, deprecated
• kSmallCapsSelectorSmall Caps, deprecated
• kInitialCapsSelectorInitial Caps, deprecated
• kInitialCapsAndSmallCapsSelectorInitial Caps and Small Caps, deprecated
• kVerticalSubstitution Vertical Substitution
• kLinguisticRearrangement Linguistic Rearrangement
• kNumberSpacing Number Spacing (non-exclusive set)
• kMonospacedNumbersSelector Monospaced Numbers
• kProportionalNumbersSelector Proportional Numbers
• kThirdWidthNumbersSelector Third-width Numerals
• kQuarterWidthNumbersSelector Quarter-width Numerals
• kSmartSwash Smart Swashes (non-exclusive set)
• kWordInitialSwashesOnSelector Word Initial Swashes
• kWordFinalSwashesOnSelector Word Final Swashes
• kLineInitialSwashesOnSelector Line Initial Swashes, deprecated
• kLineFinalSwashesOnSelector Line Final Swashes, deprecated
• kNonFinalSwashesOnSelector Non-Final Swashes
• kDiacritics Diacritics (non-exclusive set)
• kShowDiacriticsSelector Show Diacritics
• kHideDiacriticsSelector Hide Diacritics
• kDecomposeDiacriticsSelector Decompose Diacritics
• kVerticalPosition Vertical Position (non-exclusive set)
• kFractions Fractions (non-exclusive set)
• kNoFractionsSelector No Fractions
• kVerticalFractionsSelector Vertical Fractions
• kDiagonalFractionsSelector Diagonal Fractions
• kOverlappingCharacters Overlapping Characters
• kTypographicExtras Typographic Extras (non-exclusive set)
• kHyphensToEmDashOnSelector Hyphens to Em Dash, deprecated
• kHyphenToEnDashOnSelector Hyphen to En Dash, deprecated
• kSlashedZeroOnSelector Unslashed Zero
• kFormInterrobangOnSelector Form Interrobang, deprecated
• kSmartQuotesOnSelector Smart Quotes, deprecated
• kPeriodsToEllipsisOnSelector Periods to Ellipsis, deprecated
• kMathematicalExtras Mathematical Extras (non-exclusive set)
• kHyphenToMinusOnSelector Hyphen To Minus, deprecated
• kAsteriskToMultiplyOnSelector Asterisk to Multiply, deprecated
• kSlashToDivideOnSelector Slash to Divide, deprecated
• kInequalityLigaturesOnSelector Inequality Ligatures, deprecated
• kExponentsOnSelector Exponents, deprecated
• kMathematicalGreekOnSelector Mathematical Greek
• kOrnamentSets Ornament Sets (non-exclusive set)
• kNoOrnamentsSelector None
• kDingbatsSelector Dingbats
• kPiCharactersSelector Pi Characters
• kFleuronsSelector Fleurons
• kDecorativeBordersSelector Decorative Borders
• kInternationalSymbolsSelector International Symbols
• kMathSymbolsSelector Math Symbols
• kCharacterAlternatives Character Alternatives
• kDesignComplexity Design Complexity (non-exclusive set)
• kDesignLevel1Selector Design Level 1
• kDesignLevel2Selector Design Level 2
• kDesignLevel3Selector Design Level 3
• kDesignLevel4Selector Design Level 4
• kDesignLevel5Selector Design Level 5
• kStyleOptions Style Options (non-exclusive set)
• kNoStyleOptionsSelector No Style Options
• kDisplayTextSelector Display Text
• kEngravedTextSelector Engraved Text
• kIlluminatedCapsSelector Illuminated Caps
• kTitlingCapsSelector Titling Caps
• kTallCapsSelector Tall Caps
• kCharacterShape Character Shape (non-exclusive set)
• kTraditionalCharactersSelector Traditional Glyphs
• kSimplifiedCharactersSelector Simplified Glyphs
• kJIS1978CharactersSelector JIS 1978 Glyphs
• kJIS1983CharactersSelector JIS 1983 Glyphs
• kJIS1990CharactersSelector JIS 1990 Glyphs
• kTraditionalAltOneSelector Traditional Glyphs, Alternative Set 1
• kTraditionalAltTwoSelector Traditional Glyphs, Alternative Set 2
• kTraditionalAltThreeSelector Traditional Glyphs, Alternative Set 3
• kTraditionalAltFourSelector Traditional Glyphs, Alternative Set 4
• kTraditionalAltFiveSelector Traditional Glyphs, Alternative Set 5
• kExpertCharactersSelector Expert Glyphs
• kJIS2004CharactersSelector JIS 2004 Glyphs
• kHojoCharactersSelector Hojo Glyphs
• kNLCCharactersSelector NLC Glyphs
• kTraditionalNamesCharactersSelector Traditional Names
• kNumberCase Number Case (non-exclusive set)
• kLowerCaseNumbersSelector Lower Case Numbers
• kUpperCaseNumbersSelector Upper Case Numbers
• kTextSpacing Text Spacing (non-exclusive set)
• kProportionalTextSelector Proportional
• kMonospacedTextSelector Monospace
• kHalfWidthTextSelector Half-width
• kThirdWidthTextSelector Third-width
• kQuarterWidthTextSelector Quarter-width
• kAltProportionalTextSelector Alternate Proportional
• kAltHalfWidthTextSelector Alternate Half-width
• kTransliteration Transliteration (non-exclusive set)
• kNoTransliterationSelector No Transliteration
• kHanjaToHangulSelector Hanja to Hangul, deprecated
• kHiraganaToKatakanaSelector Hiragana To Katakana, deprecated
• kKatakanaToHiraganaSelector Katakana To Hiragana, deprecated
• kKanaToRomanizationSelector Kana To Romanization, deprecated
• kRomanizationToHiraganaSelector Romanization To Hiragana, deprecated
• kRomanizationToKatakanaSelector Romanization To Katakana, deprecated
• kHanjaToHangulAltOneSelector Hanja To Hangul Alt One, deprecated
• kHanjaToHangulAltTwoSelector Hanja To Hangul Alt Two, deprecated
• kHanjaToHangulAltThreeSelector Hanja To Hangul Alt Three, deprecated
• kAnnotation Annotation (non-exclusive set)
• kNoAnnotationSelector No Annotation
• kBoxAnnotationSelector Box Annotation
• kRoundedBoxAnnotationSelector Rounded Box Annotation
• kCircleAnnotationSelector Circle Annotation
• kInvertedCircleAnnotationSelector Inverted Circle Annotation
• kParenthesisAnnotationSelector Parenthesis Annotation
• kPeriodAnnotationSelector Period Annotation
• kRomanNumeralAnnotationSelector Roman Numeral Annotation
• kDiamondAnnotationSelector Diamond Annotation
• kInvertedBoxAnnotationSelector Inverted Box Annotation
• kInvertedRoundedBoxAnnotationSelector Inverted Rounded Box Annotation
• kKanaSpacing Kana Spacing (non-exclusive set)
• kFullWidthKanaSelector Full Width
• kProportionalKanaSelector Proportional
• kIdeographicSpacing Ideographic Spacing
• kFullWidthIdeographsSelector Full Width
• kProportionalIdeographsSelector Proportional
• kHalfWidthIdeographsSelector Half Width
• kUnicodeDecomposition` Unicode Decomposition
• kCanonicalCompositionOnSelector Canonical Composition
• kCompatibilityCompositionOnSelector Compatibility Composition
• kTranscodingCompositionOnSelector Transcoding Composition
• kRubyKana Ruby Kana (non-exclusive set)
• kNoRubyKanaSelector No Ruby Kana, deprecated
• kRubyKanaSelector Ruby Kana, deprecated
• kRubyKanaOnSelector Ruby Kana
• kCJKSymbolAlternatives CJK Symbol Alternatives (non-exclusive set)
• kNoCJKSymbolAlternativesSelector No CJK Symbol Alternatives
• kCJKSymbolAltOneSelector CJK Symbol Alt One
• kCJKSymbolAltTwoSelector CJK Symbol Alt Two
• kCJKSymbolAltThreeSelector CJK Symbol Alt Three
• kCJKSymbolAltFourSelector CJK Symbol Alt Four
• kCJKSymbolAltFiveSelector CJK Symbol Alt Five
• kIdeographicAlternatives Ideographic Alternatives (non-exclusive set)
• kNoIdeographicAlternativesSelector No Ideographic Alternatives
• kIdeographicAltOneSelector Ideographic Alt One
• kIdeographicAltTwoSelector Ideographic Alt Two
• kIdeographicAltThreeSelector Ideographic Alt Three
• kIdeographicAltFourSelector Ideographic Alt Four
• kIdeographicAltFiveSelector Ideographic Alt Five
• kCJKVerticalRomanPlacement CJK Vertical Roman Placement (non-exclusive set)
• kCJKVerticalRomanCenteredSelector CJK Vertical Roman Centered
• kCJKVerticalRomanHBaselineSelector CJK Vertical Roman H Baseline
• kItalicCJKRoman Italic CJK Roman (non-exclusive set)
• kNoCJKItalicRomanSelector No CJK Italic Roman, deprecated
• kCJKItalicRomanSelector CJK Italic Roman, deprecated
• kCJKItalicRomanOnSelector CJK Italic Roman
• kCaseSensitiveLayout (non-exclusive set)
• kCaseSensitiveLayoutOnSelector Case Sensitive Layout
• kCaseSensitiveSpacingOnSelector Case Sensitive Spacing
• kAlternateKana Alternate Kana (non-exclusive set)
• kAlternateHorizKanaOnSelector Alternate Horizontal Kana
• kAlternateVertKanaOnSelector Alternate Vertical Kana
• kStylisticAlternatives Stylistic Alternatives (non-exclusive set)
• kNoStylisticAlternatesSelector No Stylistic Alternates
• kStylisticAltOneOnSelector Stylistic Alt One
• kStylisticAltTwoOnSelector Stylistic Alt Two
• kStylisticAltThreeOnSelector Stylistic Alt Three
• kStylisticAltFourOnSelector Stylistic Alt Four
• kStylisticAltFiveOnSelector Stylistic Alt Five
• kStylisticAltSixOnSelector Stylistic Alt Six
• kStylisticAltSevenOnSelector Stylistic Alt Seven
• kStylisticAltEightOnSelector Stylistic Alt Eight
• kStylisticAltNineOnSelector Stylistic Alt Nine
• kStylisticAltTenOnSelector Stylistic Alt Ten
• kStylisticAltElevenOnSelector Stylistic Alt Eleven
• kStylisticAltTwelveOnSelector Stylistic Alt Twelve
• kStylisticAltThirteenOnSelector Stylistic Alt Thirteen
• kStylisticAltFourteenOnSelector Stylistic Alt Fourteen
• kStylisticAltFifteenOnSelector Stylistic Alt Fifteen
• kStylisticAltSixteenOnSelector Stylistic Alt Sixteen
• kStylisticAltSeventeenOnSelector Stylistic Alt Seventeen
• kStylisticAltEighteenOnSelector Stylistic Alt Eighteen
• kStylisticAltNineteenOnSelector Stylistic Alt Nineteen
• kStylisticAltTwentyOnSelector Stylistic Alt Twenty
• kContextualAlternates Contextual Alternates (non-exclusive set)
• kContextualAlternatesOnSelector Contextual Alternates
• kSwashAlternatesOnSelector Swash Alternates
• kContextualSwashAlternatesOnSelector Contextual Swash Alternates
• kLowerCase Lower Case (non-exclusive set)
• kDefaultLowerCaseSelector Default Lower Case
• kLowerCaseSmallCapsSelector Lower Case Small Caps
• kLowerCasePetiteCapsSelector Lower Case Petite Caps
• kUpperCase Upper Case (non-exclusive set)
• kDefaultUpperCaseSelector Default Upper Case
• kUpperCaseSmallCapsSelector Upper Case Small Caps
• kUpperCasePetiteCapsSelector Upper Case Petite Caps
• kLanguageTag Language Tag
• kCJKRomanSpacing CJK Roman Spacing
• kHalfWidthCJKRomanSelector Half-width
• kProportionalCJKRomanSelector Proportional
• kDefaultCJKRomanSelector Default Roman
• kFullWidthCJKRomanSelector Full-width Roman