@gtile/harfbuzz-0.0/harfbuzz-0.0.d.cts

GJS TypeScript type definitions for HarfBuzz-0.0, generated from library version 8.3.0

/*
 * Type Definitions for Gjs (https://gjs.guide/)
 *
 * These type definitions are automatically generated, do not edit them by hand.
 * If you found a bug fix it in `ts-for-gir` or create a bug report on https://github.com/gjsify/ts-for-gir
 */

import './harfbuzz-0.0-ambient.d.ts';
import './harfbuzz-0.0-import.d.ts';
/**
 * HarfBuzz-0.0
 */

import type freetype2 from '@gtile/freetype2-2.0';
import type GObject from '@gtile/gobject-2.0';
import type GLib from '@gtile/glib-2.0';

/**
 * Data type for holding HarfBuzz's clustering behavior options. The cluster level
 * dictates one aspect of how HarfBuzz will treat non-base characters
 * during shaping.
 * 
 * In `HB_BUFFER_CLUSTER_LEVEL_MONOTONE_GRAPHEMES,` non-base
 * characters are merged into the cluster of the base character that precedes them.
 * 
 * In `HB_BUFFER_CLUSTER_LEVEL_MONOTONE_CHARACTERS,` non-base characters are initially
 * assigned their own cluster values, which are not merged into preceding base
 * clusters. This allows HarfBuzz to perform additional operations like reorder
 * sequences of adjacent marks.
 * 
 * `HB_BUFFER_CLUSTER_LEVEL_MONOTONE_GRAPHEMES` is the default, because it maintains
 * backward compatibility with older versions of HarfBuzz. New client programs that
 * do not need to maintain such backward compatibility are recommended to use
 * `HB_BUFFER_CLUSTER_LEVEL_MONOTONE_CHARACTERS` instead of the default.
 */
export enum buffer_cluster_level_t {
    /**
     * Return cluster values grouped by graphemes into
     *   monotone order.
     */
    MONOTONE_GRAPHEMES,
    /**
     * Return cluster values grouped into monotone order.
     */
    MONOTONE_CHARACTERS,
    /**
     * Don't group cluster values.
     */
    CHARACTERS,
    /**
     * Default cluster level,
     *   equal to `HB_BUFFER_CLUSTER_LEVEL_MONOTONE_GRAPHEMES`.
     */
    DEFAULT,
}
/**
 * The type of #hb_buffer_t contents.
 */
export enum buffer_content_type_t {
    /**
     * Initial value for new buffer.
     */
    INVALID,
    /**
     * The buffer contains input characters (before shaping).
     */
    UNICODE,
    /**
     * The buffer contains output glyphs (after shaping).
     */
    GLYPHS,
}
/**
 * The direction of a text segment or buffer.
 * 
 * A segment can also be tested for horizontal or vertical
 * orientation (irrespective of specific direction) with
 * HB_DIRECTION_IS_HORIZONTAL() or HB_DIRECTION_IS_VERTICAL().
 */
export enum direction_t {
    /**
     * Initial, unset direction.
     */
    INVALID,
    /**
     * Text is set horizontally from left to right.
     */
    LTR,
    /**
     * Text is set horizontally from right to left.
     */
    RTL,
    /**
     * Text is set vertically from top to bottom.
     */
    TTB,
    /**
     * Text is set vertically from bottom to top.
     */
    BTT,
}
/**
 * Data type holding the memory modes available to
 * client programs.
 * 
 * Regarding these various memory-modes:
 * 
 * - In no case shall the HarfBuzz client modify memory
 *   that is passed to HarfBuzz in a blob.  If there is
 *   any such possibility, `HB_MEMORY_MODE_DUPLICATE` should be used
 *   such that HarfBuzz makes a copy immediately,
 * 
 * - Use `HB_MEMORY_MODE_READONLY` otherwise, unless you really really
 *   really know what you are doing,
 * 
 * - `HB_MEMORY_MODE_WRITABLE` is appropriate if you really made a
 *   copy of data solely for the purpose of passing to
 *   HarfBuzz and doing that just once (no reuse!),
 * 
 * - If the font is mmap()ed, it's okay to use
 *   `HB_MEMORY_MODE_READONLY_MAY_MAKE_WRITABLE,` however, using that mode
 *   correctly is very tricky.  Use `HB_MEMORY_MODE_READONLY` instead.
 */
export enum memory_mode_t {
    /**
     * HarfBuzz immediately makes a copy of the data.
     */
    DUPLICATE,
    /**
     * HarfBuzz client will never modify the data,
     *     and HarfBuzz will never modify the data.
     */
    READONLY,
    /**
     * HarfBuzz client made a copy of the data solely
     *     for HarfBuzz, so HarfBuzz may modify the data.
     */
    WRITABLE,
    /**
     * See above
     */
    READONLY_MAY_MAKE_WRITABLE,
}
/**
 * The GDEF classes defined for glyphs.
 */
export enum ot_layout_glyph_class_t {
    /**
     * Glyphs not matching the other classifications
     */
    UNCLASSIFIED,
    /**
     * Spacing, single characters, capable of accepting marks
     */
    BASE_GLYPH,
    /**
     * Glyphs that represent ligation of multiple characters
     */
    LIGATURE,
    /**
     * Non-spacing, combining glyphs that represent marks
     */
    MARK,
    /**
     * Spacing glyphs that represent part of a single character
     */
    COMPONENT,
}
/**
 * The 'MATH' table constants, refer to
 * [OpenType documentation](https://docs.microsoft.com/en-us/typography/opentype/spec/math#mathconstants-table)
 * For more explanations.
 */
export enum ot_math_constant_t {
    /**
     * scriptPercentScaleDown
     */
    SCRIPT_PERCENT_SCALE_DOWN,
    /**
     * scriptScriptPercentScaleDown
     */
    SCRIPT_SCRIPT_PERCENT_SCALE_DOWN,
    /**
     * delimitedSubFormulaMinHeight
     */
    DELIMITED_SUB_FORMULA_MIN_HEIGHT,
    /**
     * displayOperatorMinHeight
     */
    DISPLAY_OPERATOR_MIN_HEIGHT,
    /**
     * mathLeading
     */
    MATH_LEADING,
    /**
     * axisHeight
     */
    AXIS_HEIGHT,
    /**
     * accentBaseHeight
     */
    ACCENT_BASE_HEIGHT,
    /**
     * flattenedAccentBaseHeight
     */
    FLATTENED_ACCENT_BASE_HEIGHT,
    /**
     * subscriptShiftDown
     */
    SUBSCRIPT_SHIFT_DOWN,
    /**
     * subscriptTopMax
     */
    SUBSCRIPT_TOP_MAX,
    /**
     * subscriptBaselineDropMin
     */
    SUBSCRIPT_BASELINE_DROP_MIN,
    /**
     * superscriptShiftUp
     */
    SUPERSCRIPT_SHIFT_UP,
    /**
     * superscriptShiftUpCramped
     */
    SUPERSCRIPT_SHIFT_UP_CRAMPED,
    /**
     * superscriptBottomMin
     */
    SUPERSCRIPT_BOTTOM_MIN,
    /**
     * superscriptBaselineDropMax
     */
    SUPERSCRIPT_BASELINE_DROP_MAX,
    /**
     * subSuperscriptGapMin
     */
    SUB_SUPERSCRIPT_GAP_MIN,
    /**
     * superscriptBottomMaxWithSubscript
     */
    SUPERSCRIPT_BOTTOM_MAX_WITH_SUBSCRIPT,
    /**
     * spaceAfterScript
     */
    SPACE_AFTER_SCRIPT,
    /**
     * upperLimitGapMin
     */
    UPPER_LIMIT_GAP_MIN,
    /**
     * upperLimitBaselineRiseMin
     */
    UPPER_LIMIT_BASELINE_RISE_MIN,
    /**
     * lowerLimitGapMin
     */
    LOWER_LIMIT_GAP_MIN,
    /**
     * lowerLimitBaselineDropMin
     */
    LOWER_LIMIT_BASELINE_DROP_MIN,
    /**
     * stackTopShiftUp
     */
    STACK_TOP_SHIFT_UP,
    /**
     * stackTopDisplayStyleShiftUp
     */
    STACK_TOP_DISPLAY_STYLE_SHIFT_UP,
    /**
     * stackBottomShiftDown
     */
    STACK_BOTTOM_SHIFT_DOWN,
    /**
     * stackBottomDisplayStyleShiftDown
     */
    STACK_BOTTOM_DISPLAY_STYLE_SHIFT_DOWN,
    /**
     * stackGapMin
     */
    STACK_GAP_MIN,
    /**
     * stackDisplayStyleGapMin
     */
    STACK_DISPLAY_STYLE_GAP_MIN,
    /**
     * stretchStackTopShiftUp
     */
    STRETCH_STACK_TOP_SHIFT_UP,
    /**
     * stretchStackBottomShiftDown
     */
    STRETCH_STACK_BOTTOM_SHIFT_DOWN,
    /**
     * stretchStackGapAboveMin
     */
    STRETCH_STACK_GAP_ABOVE_MIN,
    /**
     * stretchStackGapBelowMin
     */
    STRETCH_STACK_GAP_BELOW_MIN,
    /**
     * fractionNumeratorShiftUp
     */
    FRACTION_NUMERATOR_SHIFT_UP,
    /**
     * fractionNumeratorDisplayStyleShiftUp
     */
    FRACTION_NUMERATOR_DISPLAY_STYLE_SHIFT_UP,
    /**
     * fractionDenominatorShiftDown
     */
    FRACTION_DENOMINATOR_SHIFT_DOWN,
    /**
     * fractionDenominatorDisplayStyleShiftDown
     */
    FRACTION_DENOMINATOR_DISPLAY_STYLE_SHIFT_DOWN,
    /**
     * fractionNumeratorGapMin
     */
    FRACTION_NUMERATOR_GAP_MIN,
    /**
     * fractionNumDisplayStyleGapMin
     */
    FRACTION_NUM_DISPLAY_STYLE_GAP_MIN,
    /**
     * fractionRuleThickness
     */
    FRACTION_RULE_THICKNESS,
    /**
     * fractionDenominatorGapMin
     */
    FRACTION_DENOMINATOR_GAP_MIN,
    /**
     * fractionDenomDisplayStyleGapMin
     */
    FRACTION_DENOM_DISPLAY_STYLE_GAP_MIN,
    /**
     * skewedFractionHorizontalGap
     */
    SKEWED_FRACTION_HORIZONTAL_GAP,
    /**
     * skewedFractionVerticalGap
     */
    SKEWED_FRACTION_VERTICAL_GAP,
    /**
     * overbarVerticalGap
     */
    OVERBAR_VERTICAL_GAP,
    /**
     * overbarRuleThickness
     */
    OVERBAR_RULE_THICKNESS,
    /**
     * overbarExtraAscender
     */
    OVERBAR_EXTRA_ASCENDER,
    /**
     * underbarVerticalGap
     */
    UNDERBAR_VERTICAL_GAP,
    /**
     * underbarRuleThickness
     */
    UNDERBAR_RULE_THICKNESS,
    /**
     * underbarExtraDescender
     */
    UNDERBAR_EXTRA_DESCENDER,
    /**
     * radicalVerticalGap
     */
    RADICAL_VERTICAL_GAP,
    /**
     * radicalDisplayStyleVerticalGap
     */
    RADICAL_DISPLAY_STYLE_VERTICAL_GAP,
    /**
     * radicalRuleThickness
     */
    RADICAL_RULE_THICKNESS,
    /**
     * radicalExtraAscender
     */
    RADICAL_EXTRA_ASCENDER,
    /**
     * radicalKernBeforeDegree
     */
    RADICAL_KERN_BEFORE_DEGREE,
    /**
     * radicalKernAfterDegree
     */
    RADICAL_KERN_AFTER_DEGREE,
    /**
     * radicalDegreeBottomRaisePercent
     */
    RADICAL_DEGREE_BOTTOM_RAISE_PERCENT,
}
/**
 * The math kerning-table types defined for the four corners
 * of a glyph.
 */
export enum ot_math_kern_t {
    /**
     * The top right corner of the glyph.
     */
    TOP_RIGHT,
    /**
     * The top left corner of the glyph.
     */
    TOP_LEFT,
    /**
     * The bottom right corner of the glyph.
     */
    BOTTOM_RIGHT,
    /**
     * The bottom left corner of the glyph.
     */
    BOTTOM_LEFT,
}
/**
 * An enum type representing the pre-defined name IDs.
 * 
 * For more information on these fields, see the
 * [OpenType spec](https://docs.microsoft.com/en-us/typography/opentype/spec/name#name-ids).
 */
export enum ot_name_id_predefined_t {
    /**
     * Copyright notice
     */
    COPYRIGHT,
    /**
     * Font Family name
     */
    FONT_FAMILY,
    /**
     * Font Subfamily name
     */
    FONT_SUBFAMILY,
    /**
     * Unique font identifier
     */
    UNIQUE_ID,
    /**
     * Full font name that reflects
     * all family and relevant subfamily descriptors
     */
    FULL_NAME,
    /**
     * Version string
     */
    VERSION_STRING,
    /**
     * PostScript name for the font
     */
    POSTSCRIPT_NAME,
    /**
     * Trademark
     */
    TRADEMARK,
    /**
     * Manufacturer Name
     */
    MANUFACTURER,
    /**
     * Designer
     */
    DESIGNER,
    /**
     * Description
     */
    DESCRIPTION,
    /**
     * URL of font vendor
     */
    VENDOR_URL,
    /**
     * URL of typeface designer
     */
    DESIGNER_URL,
    /**
     * License Description
     */
    LICENSE,
    /**
     * URL where additional licensing
     * information can be found
     */
    LICENSE_URL,
    /**
     * Typographic Family name
     */
    TYPOGRAPHIC_FAMILY,
    /**
     * Typographic Subfamily name
     */
    TYPOGRAPHIC_SUBFAMILY,
    /**
     * Compatible Full Name for MacOS
     */
    MAC_FULL_NAME,
    /**
     * Sample text
     */
    SAMPLE_TEXT,
    /**
     * PostScript CID findfont name
     */
    CID_FINDFONT_NAME,
    /**
     * WWS Family Name
     */
    WWS_FAMILY,
    /**
     * WWS Subfamily Name
     */
    WWS_SUBFAMILY,
    /**
     * Light Background Palette
     */
    LIGHT_BACKGROUND,
    /**
     * Dark Background Palette
     */
    DARK_BACKGROUND,
    /**
     * Variations PostScript Name Prefix
     */
    VARIATIONS_PS_PREFIX,
    /**
     * Value to represent a nonexistent name ID.
     */
    INVALID,
}
/**
 * The values of this enumeration describe the compositing modes
 * that can be used when combining temporary redirected drawing
 * with the backdrop.
 * 
 * See the OpenType spec [COLR](https://learn.microsoft.com/en-us/typography/opentype/spec/colr)
 * section for details.
 */
export enum paint_composite_mode_t {
    /**
     * clear destination layer (bounded)
     */
    CLEAR,
    /**
     * replace destination layer (bounded)
     */
    SRC,
    /**
     * ignore the source
     */
    DEST,
    /**
     * draw source layer on top of destination layer
     * (bounded)
     */
    SRC_OVER,
    /**
     * draw destination on top of source
     */
    DEST_OVER,
    /**
     * draw source where there was destination content
     * (unbounded)
     */
    SRC_IN,
    /**
     * leave destination only where there was
     * source content (unbounded)
     */
    DEST_IN,
    /**
     * draw source where there was no destination
     * content (unbounded)
     */
    SRC_OUT,
    /**
     * leave destination only where there was no
     * source content
     */
    DEST_OUT,
    /**
     * draw source on top of destination content and
     * only there
     */
    SRC_ATOP,
    /**
     * leave destination on top of source content
     * and only there (unbounded)
     */
    DEST_ATOP,
    /**
     * source and destination are shown where there is only
     * one of them
     */
    XOR,
    /**
     * source and destination layers are accumulated
     */
    PLUS,
    /**
     * source and destination are complemented and
     * multiplied. This causes the result to be at least as light as the lighter
     * inputs.
     */
    SCREEN,
    /**
     * multiplies or screens, depending on the
     * lightness of the destination color.
     */
    OVERLAY,
    /**
     * replaces the destination with the source if it
     * is darker, otherwise keeps the source.
     */
    DARKEN,
    /**
     * replaces the destination with the source if it
     * is lighter, otherwise keeps the source.
     */
    LIGHTEN,
    /**
     * brightens the destination color to reflect
     * the source color.
     */
    COLOR_DODGE,
    /**
     * darkens the destination color to reflect
     * the source color.
     */
    COLOR_BURN,
    /**
     * Multiplies or screens, dependent on source
     * color.
     */
    HARD_LIGHT,
    /**
     * Darkens or lightens, dependent on source
     * color.
     */
    SOFT_LIGHT,
    /**
     * Takes the difference of the source and
     * destination color.
     */
    DIFFERENCE,
    /**
     * Produces an effect similar to difference, but
     * with lower contrast.
     */
    EXCLUSION,
    /**
     * source and destination layers are multiplied.
     * This causes the result to be at least as dark as the darker inputs.
     */
    MULTIPLY,
    /**
     * Creates a color with the hue of the source
     * and the saturation and luminosity of the target.
     */
    HSL_HUE,
    /**
     * Creates a color with the saturation
     * of the source and the hue and luminosity of the target. Painting with
     * this mode onto a gray area produces no change.
     */
    HSL_SATURATION,
    /**
     * Creates a color with the hue and saturation
     * of the source and the luminosity of the target. This preserves the gray
     * levels of the target and is useful for coloring monochrome images or
     * tinting color images.
     */
    HSL_COLOR,
    /**
     * Creates a color with the luminosity of
     * the source and the hue and saturation of the target. This produces an
     * inverse effect to `HB_PAINT_COMPOSITE_MODE_HSL_COLOR`.
     */
    HSL_LUMINOSITY,
}
/**
 * The values of this enumeration determine how color values
 * outside the minimum and maximum defined offset on a #hb_color_line_t
 * are determined.
 * 
 * See the OpenType spec [COLR](https://learn.microsoft.com/en-us/typography/opentype/spec/colr)
 * section for details.
 */
export enum paint_extend_t {
    /**
     * Outside the defined interval,
     *   the color of the closest color stop is used.
     */
    PAD,
    /**
     * The color line is repeated over
     *   repeated multiples of the defined interval
     */
    REPEAT,
    /**
     * The color line is repeated over
     *      repeated intervals, as for the repeat mode.
     *      However, in each repeated interval, the ordering of
     *      color stops is the reverse of the adjacent interval.
     */
    REFLECT,
}
/**
 * Data type for the Canonical_Combining_Class (ccc) property
 * from the Unicode Character Database.
 * 
 * <note>Note: newer versions of Unicode may add new values.
 * Client programs should be ready to handle any value in the 0..254 range
 * being returned from hb_unicode_combining_class().</note>
 */
export enum unicode_combining_class_t {
    /**
     * Spacing and enclosing marks; also many vowel and consonant signs, even if nonspacing
     */
    NOT_REORDERED,
    /**
     * Marks which overlay a base letter or symbol
     */
    OVERLAY,
    /**
     * Diacritic nukta marks in Brahmi-derived scripts
     */
    NUKTA,
    /**
     * Hiragana/Katakana voicing marks
     */
    KANA_VOICING,
    /**
     * Viramas
     */
    VIRAMA,
    /**
     * [Hebrew]
     */
    CCC10,
    /**
     * [Hebrew]
     */
    CCC11,
    /**
     * [Hebrew]
     */
    CCC12,
    /**
     * [Hebrew]
     */
    CCC13,
    /**
     * [Hebrew]
     */
    CCC14,
    /**
     * [Hebrew]
     */
    CCC15,
    /**
     * [Hebrew]
     */
    CCC16,
    /**
     * [Hebrew]
     */
    CCC17,
    /**
     * [Hebrew]
     */
    CCC18,
    /**
     * [Hebrew]
     */
    CCC19,
    /**
     * [Hebrew]
     */
    CCC20,
    /**
     * [Hebrew]
     */
    CCC21,
    /**
     * [Hebrew]
     */
    CCC22,
    /**
     * [Hebrew]
     */
    CCC23,
    /**
     * [Hebrew]
     */
    CCC24,
    /**
     * [Hebrew]
     */
    CCC25,
    /**
     * [Hebrew]
     */
    CCC26,
    /**
     * [Arabic]
     */
    CCC27,
    /**
     * [Arabic]
     */
    CCC28,
    /**
     * [Arabic]
     */
    CCC29,
    /**
     * [Arabic]
     */
    CCC30,
    /**
     * [Arabic]
     */
    CCC31,
    /**
     * [Arabic]
     */
    CCC32,
    /**
     * [Arabic]
     */
    CCC33,
    /**
     * [Arabic]
     */
    CCC34,
    /**
     * [Arabic]
     */
    CCC35,
    /**
     * [Syriac]
     */
    CCC36,
    /**
     * [Telugu]
     */
    CCC84,
    /**
     * [Telugu]
     */
    CCC91,
    /**
     * [Thai]
     */
    CCC103,
    /**
     * [Thai]
     */
    CCC107,
    /**
     * [Lao]
     */
    CCC118,
    /**
     * [Lao]
     */
    CCC122,
    /**
     * [Tibetan]
     */
    CCC129,
    /**
     * [Tibetan]
     */
    CCC130,
    /**
     * [Tibetan] Since: 7.2.0
     */
    CCC132,
    /**
     * Marks attached at the bottom left
     */
    ATTACHED_BELOW_LEFT,
    /**
     * Marks attached directly below
     */
    ATTACHED_BELOW,
    /**
     * Marks attached directly above
     */
    ATTACHED_ABOVE,
    /**
     * Marks attached at the top right
     */
    ATTACHED_ABOVE_RIGHT,
    /**
     * Distinct marks at the bottom left
     */
    BELOW_LEFT,
    /**
     * Distinct marks directly below
     */
    BELOW,
    /**
     * Distinct marks at the bottom right
     */
    BELOW_RIGHT,
    /**
     * Distinct marks to the left
     */
    LEFT,
    /**
     * Distinct marks to the right
     */
    RIGHT,
    /**
     * Distinct marks at the top left
     */
    ABOVE_LEFT,
    /**
     * Distinct marks directly above
     */
    ABOVE,
    /**
     * Distinct marks at the top right
     */
    ABOVE_RIGHT,
    /**
     * Distinct marks subtending two bases
     */
    DOUBLE_BELOW,
    /**
     * Distinct marks extending above two bases
     */
    DOUBLE_ABOVE,
    /**
     * Greek iota subscript only
     */
    IOTA_SUBSCRIPT,
    /**
     * Invalid combining class
     */
    INVALID,
}
/**
 * Data type for the "General_Category" (gc) property from
 * the Unicode Character Database.
 */
export enum unicode_general_category_t {
    /**
     * [Cc]
     */
    CONTROL,
    /**
     * [Cf]
     */
    FORMAT,
    /**
     * [Cn]
     */
    UNASSIGNED,
    /**
     * [Co]
     */
    PRIVATE_USE,
    /**
     * [Cs]
     */
    SURROGATE,
    /**
     * [Ll]
     */
    LOWERCASE_LETTER,
    /**
     * [Lm]
     */
    MODIFIER_LETTER,
    /**
     * [Lo]
     */
    OTHER_LETTER,
    /**
     * [Lt]
     */
    TITLECASE_LETTER,
    /**
     * [Lu]
     */
    UPPERCASE_LETTER,
    /**
     * [Mc]
     */
    SPACING_MARK,
    /**
     * [Me]
     */
    ENCLOSING_MARK,
    /**
     * [Mn]
     */
    NON_SPACING_MARK,
    /**
     * [Nd]
     */
    DECIMAL_NUMBER,
    /**
     * [Nl]
     */
    LETTER_NUMBER,
    /**
     * [No]
     */
    OTHER_NUMBER,
    /**
     * [Pc]
     */
    CONNECT_PUNCTUATION,
    /**
     * [Pd]
     */
    DASH_PUNCTUATION,
    /**
     * [Pe]
     */
    CLOSE_PUNCTUATION,
    /**
     * [Pf]
     */
    FINAL_PUNCTUATION,
    /**
     * [Pi]
     */
    INITIAL_PUNCTUATION,
    /**
     * [Po]
     */
    OTHER_PUNCTUATION,
    /**
     * [Ps]
     */
    OPEN_PUNCTUATION,
    /**
     * [Sc]
     */
    CURRENCY_SYMBOL,
    /**
     * [Sk]
     */
    MODIFIER_SYMBOL,
    /**
     * [Sm]
     */
    MATH_SYMBOL,
    /**
     * [So]
     */
    OTHER_SYMBOL,
    /**
     * [Zl]
     */
    LINE_SEPARATOR,
    /**
     * [Zp]
     */
    PARAGRAPH_SEPARATOR,
    /**
     * [Zs]
     */
    SPACE_SEPARATOR,
}
/**
 * The selectors defined for specifying AAT feature settings.
 * @bitfield 
 */
export enum aat_layout_feature_selector_t {
    /**
     * Initial, unset feature selector
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_INVALID,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_ALL_TYPOGRAPHIC
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_ALL_TYPE_FEATURES_ON,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_ALL_TYPOGRAPHIC
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_ALL_TYPE_FEATURES_OFF,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_LIGATURES
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_REQUIRED_LIGATURES_ON,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_LIGATURES
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_REQUIRED_LIGATURES_OFF,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_LIGATURES
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_COMMON_LIGATURES_ON,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_LIGATURES
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_COMMON_LIGATURES_OFF,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_LIGATURES
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_RARE_LIGATURES_ON,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_LIGATURES
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_RARE_LIGATURES_OFF,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_LIGATURES
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_LOGOS_ON,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_LIGATURES
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_LOGOS_OFF,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_LIGATURES
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_REBUS_PICTURES_ON,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_LIGATURES
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_REBUS_PICTURES_OFF,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_LIGATURES
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_DIPHTHONG_LIGATURES_ON,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_LIGATURES
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_DIPHTHONG_LIGATURES_OFF,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_LIGATURES
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_SQUARED_LIGATURES_ON,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_LIGATURES
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_SQUARED_LIGATURES_OFF,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_LIGATURES
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_ABBREV_SQUARED_LIGATURES_ON,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_LIGATURES
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_ABBREV_SQUARED_LIGATURES_OFF,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_LIGATURES
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_SYMBOL_LIGATURES_ON,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_LIGATURES
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_SYMBOL_LIGATURES_OFF,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_LIGATURES
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_CONTEXTUAL_LIGATURES_ON,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_LIGATURES
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_CONTEXTUAL_LIGATURES_OFF,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_LIGATURES
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_HISTORICAL_LIGATURES_ON,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_LIGATURES
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_HISTORICAL_LIGATURES_OFF,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_LIGATURES
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_UNCONNECTED,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_LIGATURES
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_PARTIALLY_CONNECTED,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_LIGATURES
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_CURSIVE,
    /**
     * Deprecated
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_UPPER_AND_LOWER_CASE,
    /**
     * Deprecated
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_ALL_CAPS,
    /**
     * Deprecated
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_ALL_LOWER_CASE,
    /**
     * Deprecated
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_SMALL_CAPS,
    /**
     * Deprecated
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_INITIAL_CAPS,
    /**
     * Deprecated
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_INITIAL_CAPS_AND_SMALL_CAPS,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_VERTICAL_SUBSTITUTION
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_SUBSTITUTE_VERTICAL_FORMS_ON,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_VERTICAL_SUBSTITUTION
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_SUBSTITUTE_VERTICAL_FORMS_OFF,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_LINGUISTIC_REARRANGEMENT
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_LINGUISTIC_REARRANGEMENT_ON,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_LINGUISTIC_REARRANGEMENT
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_LINGUISTIC_REARRANGEMENT_OFF,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_NUMBER_SPACING
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_MONOSPACED_NUMBERS,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_NUMBER_SPACING
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_PROPORTIONAL_NUMBERS,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_NUMBER_SPACING
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_THIRD_WIDTH_NUMBERS,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_NUMBER_SPACING
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_QUARTER_WIDTH_NUMBERS,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_SMART_SWASH_TYPE
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_WORD_INITIAL_SWASHES_ON,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_SMART_SWASH_TYPE
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_WORD_INITIAL_SWASHES_OFF,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_SMART_SWASH_TYPE
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_WORD_FINAL_SWASHES_ON,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_SMART_SWASH_TYPE
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_WORD_FINAL_SWASHES_OFF,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_SMART_SWASH_TYPE
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_LINE_INITIAL_SWASHES_ON,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_SMART_SWASH_TYPE
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_LINE_INITIAL_SWASHES_OFF,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_SMART_SWASH_TYPE
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_LINE_FINAL_SWASHES_ON,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_SMART_SWASH_TYPE
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_LINE_FINAL_SWASHES_OFF,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_SMART_SWASH_TYPE
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_NON_FINAL_SWASHES_ON,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_SMART_SWASH_TYPE
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_NON_FINAL_SWASHES_OFF,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_DIACRITICS_TYPE
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_SHOW_DIACRITICS,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_DIACRITICS_TYPE
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_HIDE_DIACRITICS,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_DIACRITICS_TYPE
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_DECOMPOSE_DIACRITICS,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_VERTICAL_POSITION
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_NORMAL_POSITION,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_VERTICAL_POSITION
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_SUPERIORS,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_VERTICAL_POSITION
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_INFERIORS,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_VERTICAL_POSITION
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_ORDINALS,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_VERTICAL_POSITION
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_SCIENTIFIC_INFERIORS,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_FRACTIONS
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_NO_FRACTIONS,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_FRACTIONS
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_VERTICAL_FRACTIONS,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_FRACTIONS
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_DIAGONAL_FRACTIONS,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_OVERLAPPING_CHARACTERS_TYPE
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_PREVENT_OVERLAP_ON,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_OVERLAPPING_CHARACTERS_TYPE
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_PREVENT_OVERLAP_OFF,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_TYPOGRAPHIC_EXTRAS
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_HYPHENS_TO_EM_DASH_ON,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_TYPOGRAPHIC_EXTRAS
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_HYPHENS_TO_EM_DASH_OFF,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_TYPOGRAPHIC_EXTRAS
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_HYPHEN_TO_EN_DASH_ON,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_TYPOGRAPHIC_EXTRAS
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_HYPHEN_TO_EN_DASH_OFF,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_TYPOGRAPHIC_EXTRAS
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_SLASHED_ZERO_ON,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_TYPOGRAPHIC_EXTRAS
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_SLASHED_ZERO_OFF,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_TYPOGRAPHIC_EXTRAS
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_FORM_INTERROBANG_ON,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_TYPOGRAPHIC_EXTRAS
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_FORM_INTERROBANG_OFF,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_TYPOGRAPHIC_EXTRAS
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_SMART_QUOTES_ON,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_TYPOGRAPHIC_EXTRAS
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_SMART_QUOTES_OFF,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_TYPOGRAPHIC_EXTRAS
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_PERIODS_TO_ELLIPSIS_ON,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_TYPOGRAPHIC_EXTRAS
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_PERIODS_TO_ELLIPSIS_OFF,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_MATHEMATICAL_EXTRAS
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_HYPHEN_TO_MINUS_ON,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_MATHEMATICAL_EXTRAS
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_HYPHEN_TO_MINUS_OFF,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_MATHEMATICAL_EXTRAS
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_ASTERISK_TO_MULTIPLY_ON,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_MATHEMATICAL_EXTRAS
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_ASTERISK_TO_MULTIPLY_OFF,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_MATHEMATICAL_EXTRAS
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_SLASH_TO_DIVIDE_ON,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_MATHEMATICAL_EXTRAS
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_SLASH_TO_DIVIDE_OFF,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_MATHEMATICAL_EXTRAS
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_INEQUALITY_LIGATURES_ON,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_MATHEMATICAL_EXTRAS
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_INEQUALITY_LIGATURES_OFF,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_MATHEMATICAL_EXTRAS
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_EXPONENTS_ON,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_MATHEMATICAL_EXTRAS
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_EXPONENTS_OFF,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_MATHEMATICAL_EXTRAS
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_MATHEMATICAL_GREEK_ON,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_MATHEMATICAL_EXTRAS
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_MATHEMATICAL_GREEK_OFF,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_ORNAMENT_SETS_TYPE
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_NO_ORNAMENTS,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_ORNAMENT_SETS_TYPE
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_DINGBATS,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_ORNAMENT_SETS_TYPE
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_PI_CHARACTERS,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_ORNAMENT_SETS_TYPE
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_FLEURONS,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_ORNAMENT_SETS_TYPE
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_DECORATIVE_BORDERS,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_ORNAMENT_SETS_TYPE
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_INTERNATIONAL_SYMBOLS,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_ORNAMENT_SETS_TYPE
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_MATH_SYMBOLS,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_CHARACTER_ALTERNATIVES
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_NO_ALTERNATES,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_DESIGN_COMPLEXITY_TYPE
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_DESIGN_LEVEL1,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_DESIGN_COMPLEXITY_TYPE
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_DESIGN_LEVEL2,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_DESIGN_COMPLEXITY_TYPE
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_DESIGN_LEVEL3,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_DESIGN_COMPLEXITY_TYPE
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_DESIGN_LEVEL4,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_DESIGN_COMPLEXITY_TYPE
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_DESIGN_LEVEL5,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_STYLE_OPTIONS
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_NO_STYLE_OPTIONS,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_STYLE_OPTIONS
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_DISPLAY_TEXT,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_STYLE_OPTIONS
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_ENGRAVED_TEXT,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_STYLE_OPTIONS
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_ILLUMINATED_CAPS,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_STYLE_OPTIONS
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_TITLING_CAPS,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_STYLE_OPTIONS
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_TALL_CAPS,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_CHARACTER_SHAPE
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_TRADITIONAL_CHARACTERS,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_CHARACTER_SHAPE
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_SIMPLIFIED_CHARACTERS,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_CHARACTER_SHAPE
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_JIS1978_CHARACTERS,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_CHARACTER_SHAPE
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_JIS1983_CHARACTERS,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_CHARACTER_SHAPE
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_JIS1990_CHARACTERS,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_CHARACTER_SHAPE
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_TRADITIONAL_ALT_ONE,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_CHARACTER_SHAPE
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_TRADITIONAL_ALT_TWO,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_CHARACTER_SHAPE
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_TRADITIONAL_ALT_THREE,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_CHARACTER_SHAPE
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_TRADITIONAL_ALT_FOUR,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_CHARACTER_SHAPE
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_TRADITIONAL_ALT_FIVE,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_CHARACTER_SHAPE
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_EXPERT_CHARACTERS,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_CHARACTER_SHAPE
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_JIS2004_CHARACTERS,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_CHARACTER_SHAPE
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_HOJO_CHARACTERS,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_CHARACTER_SHAPE
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_NLCCHARACTERS,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_CHARACTER_SHAPE
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_TRADITIONAL_NAMES_CHARACTERS,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_NUMBER_CASE
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_LOWER_CASE_NUMBERS,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_NUMBER_CASE
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_UPPER_CASE_NUMBERS,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_TEXT_SPACING
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_PROPORTIONAL_TEXT,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_TEXT_SPACING
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_MONOSPACED_TEXT,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_TEXT_SPACING
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_HALF_WIDTH_TEXT,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_TEXT_SPACING
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_THIRD_WIDTH_TEXT,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_TEXT_SPACING
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_QUARTER_WIDTH_TEXT,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_TEXT_SPACING
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_ALT_PROPORTIONAL_TEXT,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_TEXT_SPACING
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_ALT_HALF_WIDTH_TEXT,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_TRANSLITERATION
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_NO_TRANSLITERATION,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_TRANSLITERATION
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_HANJA_TO_HANGUL,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_TRANSLITERATION
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_HIRAGANA_TO_KATAKANA,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_TRANSLITERATION
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_KATAKANA_TO_HIRAGANA,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_TRANSLITERATION
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_KANA_TO_ROMANIZATION,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_TRANSLITERATION
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_ROMANIZATION_TO_HIRAGANA,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_TRANSLITERATION
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_ROMANIZATION_TO_KATAKANA,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_TRANSLITERATION
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_HANJA_TO_HANGUL_ALT_ONE,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_TRANSLITERATION
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_HANJA_TO_HANGUL_ALT_TWO,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_TRANSLITERATION
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_HANJA_TO_HANGUL_ALT_THREE,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_ANNOTATION_TYPE
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_NO_ANNOTATION,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_ANNOTATION_TYPE
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_BOX_ANNOTATION,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_ANNOTATION_TYPE
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_ROUNDED_BOX_ANNOTATION,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_ANNOTATION_TYPE
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_CIRCLE_ANNOTATION,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_ANNOTATION_TYPE
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_INVERTED_CIRCLE_ANNOTATION,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_ANNOTATION_TYPE
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_PARENTHESIS_ANNOTATION,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_ANNOTATION_TYPE
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_PERIOD_ANNOTATION,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_ANNOTATION_TYPE
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_ROMAN_NUMERAL_ANNOTATION,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_ANNOTATION_TYPE
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_DIAMOND_ANNOTATION,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_ANNOTATION_TYPE
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_INVERTED_BOX_ANNOTATION,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_ANNOTATION_TYPE
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_INVERTED_ROUNDED_BOX_ANNOTATION,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_KANA_SPACING_TYPE
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_FULL_WIDTH_KANA,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_KANA_SPACING_TYPE
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_PROPORTIONAL_KANA,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_IDEOGRAPHIC_SPACING_TYPE
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_FULL_WIDTH_IDEOGRAPHS,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_IDEOGRAPHIC_SPACING_TYPE
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_PROPORTIONAL_IDEOGRAPHS,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_IDEOGRAPHIC_SPACING_TYPE
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_HALF_WIDTH_IDEOGRAPHS,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_UNICODE_DECOMPOSITION_TYPE
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_CANONICAL_COMPOSITION_ON,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_UNICODE_DECOMPOSITION_TYPE
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_CANONICAL_COMPOSITION_OFF,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_UNICODE_DECOMPOSITION_TYPE
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_COMPATIBILITY_COMPOSITION_ON,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_UNICODE_DECOMPOSITION_TYPE
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_COMPATIBILITY_COMPOSITION_OFF,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_UNICODE_DECOMPOSITION_TYPE
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_TRANSCODING_COMPOSITION_ON,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_UNICODE_DECOMPOSITION_TYPE
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_TRANSCODING_COMPOSITION_OFF,
    /**
     * Deprecated; use #HB_AAT_LAYOUT_FEATURE_SELECTOR_RUBY_KANA_OFF instead
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_NO_RUBY_KANA,
    /**
     * Deprecated; use #HB_AAT_LAYOUT_FEATURE_SELECTOR_RUBY_KANA_ON instead
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_RUBY_KANA,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_RUBY_KANA
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_RUBY_KANA_ON,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_RUBY_KANA
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_RUBY_KANA_OFF,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_CJK_SYMBOL_ALTERNATIVES_TYPE
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_NO_CJK_SYMBOL_ALTERNATIVES,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_CJK_SYMBOL_ALTERNATIVES_TYPE
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_CJK_SYMBOL_ALT_ONE,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_CJK_SYMBOL_ALTERNATIVES_TYPE
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_CJK_SYMBOL_ALT_TWO,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_CJK_SYMBOL_ALTERNATIVES_TYPE
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_CJK_SYMBOL_ALT_THREE,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_CJK_SYMBOL_ALTERNATIVES_TYPE
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_CJK_SYMBOL_ALT_FOUR,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_CJK_SYMBOL_ALTERNATIVES_TYPE
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_CJK_SYMBOL_ALT_FIVE,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_IDEOGRAPHIC_ALTERNATIVES_TYPE
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_NO_IDEOGRAPHIC_ALTERNATIVES,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_IDEOGRAPHIC_ALTERNATIVES_TYPE
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_IDEOGRAPHIC_ALT_ONE,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_IDEOGRAPHIC_ALTERNATIVES_TYPE
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_IDEOGRAPHIC_ALT_TWO,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_IDEOGRAPHIC_ALTERNATIVES_TYPE
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_IDEOGRAPHIC_ALT_THREE,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_IDEOGRAPHIC_ALTERNATIVES_TYPE
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_IDEOGRAPHIC_ALT_FOUR,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_IDEOGRAPHIC_ALTERNATIVES_TYPE
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_IDEOGRAPHIC_ALT_FIVE,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_CJK_VERTICAL_ROMAN_PLACEMENT_TYPE
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_CJK_VERTICAL_ROMAN_CENTERED,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_CJK_VERTICAL_ROMAN_PLACEMENT_TYPE
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_CJK_VERTICAL_ROMAN_HBASELINE,
    /**
     * Deprecated; use #HB_AAT_LAYOUT_FEATURE_SELECTOR_CJK_ITALIC_ROMAN_OFF instead
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_NO_CJK_ITALIC_ROMAN,
    /**
     * Deprecated; use #HB_AAT_LAYOUT_FEATURE_SELECTOR_CJK_ITALIC_ROMAN_ON instead
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_CJK_ITALIC_ROMAN,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_ITALIC_CJK_ROMAN
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_CJK_ITALIC_ROMAN_ON,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_ITALIC_CJK_ROMAN
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_CJK_ITALIC_ROMAN_OFF,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_CASE_SENSITIVE_LAYOUT
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_CASE_SENSITIVE_LAYOUT_ON,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_CASE_SENSITIVE_LAYOUT
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_CASE_SENSITIVE_LAYOUT_OFF,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_CASE_SENSITIVE_LAYOUT
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_CASE_SENSITIVE_SPACING_ON,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_CASE_SENSITIVE_LAYOUT
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_CASE_SENSITIVE_SPACING_OFF,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_ALTERNATE_KANA
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_ALTERNATE_HORIZ_KANA_ON,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_ALTERNATE_KANA
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_ALTERNATE_HORIZ_KANA_OFF,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_ALTERNATE_KANA
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_ALTERNATE_VERT_KANA_ON,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_ALTERNATE_KANA
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_ALTERNATE_VERT_KANA_OFF,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_STYLISTIC_ALTERNATIVES
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_NO_STYLISTIC_ALTERNATES,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_STYLISTIC_ALTERNATIVES
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_ONE_ON,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_STYLISTIC_ALTERNATIVES
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_ONE_OFF,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_STYLISTIC_ALTERNATIVES
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_TWO_ON,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_STYLISTIC_ALTERNATIVES
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_TWO_OFF,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_STYLISTIC_ALTERNATIVES
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_THREE_ON,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_STYLISTIC_ALTERNATIVES
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_THREE_OFF,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_STYLISTIC_ALTERNATIVES
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_FOUR_ON,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_STYLISTIC_ALTERNATIVES
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_FOUR_OFF,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_STYLISTIC_ALTERNATIVES
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_FIVE_ON,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_STYLISTIC_ALTERNATIVES
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_FIVE_OFF,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_STYLISTIC_ALTERNATIVES
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_SIX_ON,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_STYLISTIC_ALTERNATIVES
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_SIX_OFF,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_STYLISTIC_ALTERNATIVES
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_SEVEN_ON,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_STYLISTIC_ALTERNATIVES
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_SEVEN_OFF,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_STYLISTIC_ALTERNATIVES
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_EIGHT_ON,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_STYLISTIC_ALTERNATIVES
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_EIGHT_OFF,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_STYLISTIC_ALTERNATIVES
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_NINE_ON,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_STYLISTIC_ALTERNATIVES
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_NINE_OFF,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_STYLISTIC_ALTERNATIVES
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_TEN_ON,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_STYLISTIC_ALTERNATIVES
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_TEN_OFF,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_STYLISTIC_ALTERNATIVES
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_ELEVEN_ON,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_STYLISTIC_ALTERNATIVES
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_ELEVEN_OFF,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_STYLISTIC_ALTERNATIVES
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_TWELVE_ON,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_STYLISTIC_ALTERNATIVES
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_TWELVE_OFF,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_STYLISTIC_ALTERNATIVES
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_THIRTEEN_ON,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_STYLISTIC_ALTERNATIVES
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_THIRTEEN_OFF,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_STYLISTIC_ALTERNATIVES
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_FOURTEEN_ON,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_STYLISTIC_ALTERNATIVES
     */
    B_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_FOURTEEN_OFF,
    /**
     * for #HB_AAT_LAYOUT_FEATURE_TYPE_STYLISTIC_ALTERNATIVES
     */
    B_AAT_LA