import type { Fixed, FWord, Int16, Uint16, Uint32 } from "./BinaryReader";
/**
 * Main function for parsing TTF files.
 *
 * @param data TTF file in binary format.
 * @returns a parsed TTF object.
 */
export declare function parseTTF(data: ArrayBuffer): TTF;
export type TTF = {
    GPOS?: GPOSTable;
    cmap: CmapTable;
    glyf: GlyfTable;
    head: HeadTable;
    hhea: HheaTable;
    hmtx: HmtxTable;
    loca: LocaTable;
    maxp: MaxpTable;
};
export type Table = {
    checksum: number;
    length: number;
    offset: number;
};
export type HeadTable = {
    checksumAdjustment: Uint32;
    created: string;
    flags: Uint16;
    fontDirectionHint: Int16;
    fontRevision: Fixed;
    glyphDataFormat: Int16;
    indexToLocFormat: Int16;
    lowestRecPPEM: Uint16;
    macStyle: Uint16;
    magicNumber: Uint32;
    majorVersion: Uint16;
    minorVersion: Uint16;
    modified: string;
    unitsPerEm: Uint16;
    xMax: FWord;
    xMin: FWord;
    yMax: FWord;
    yMin: FWord;
};
export type CmapTable = {
    encodingRecords: Array<{
        encodingID: Uint16;
        offset: Uint32;
        platformID: Uint16;
    }>;
    endCodes: Array<Uint16>;
    entrySelector: Uint16;
    format: Uint16;
    glyphIndexMap: Record<number, number>;
    idDeltas: Array<Int16>;
    idRangeOffsets: Array<Uint16>;
    language: Uint16;
    length: Uint16;
    numTables: Uint16;
    rangeShift: Uint16;
    searchRange: Uint16;
    segCount: Uint16;
    segCountX2: Uint16;
    startCodes: Array<Uint16>;
    version: Uint16;
};
export type MaxpTable = {
    numGlyphs: Uint16;
    version: "0.5" | "1.0";
};
export type HheaTable = {
    advanceWidthMax: Uint16;
    ascender: FWord;
    caretOffset: FWord;
    caretSlopeRise: Int16;
    caretSlopeRun: Int16;
    descender: FWord;
    lineGap: FWord;
    majorVersion: Uint16;
    metricDataFormat: Int16;
    minLeftSideBearing: FWord;
    minRightSideBearing: FWord;
    minorVersion: Uint16;
    numberOfHMetrics: Uint16;
    reserved1: Int16;
    reserved2: Int16;
    reserved3: Int16;
    reserved4: Int16;
    xMaxExtent: FWord;
};
export type HmtxTable = {
    hMetrics: Array<{
        advanceWidth: Uint16;
        leftSideBearing: Int16;
    }>;
    leftSideBearings: Array<FWord>;
};
export type LocaTable = {
    offsets: Array<number>;
};
export type GlyfTable = Array<{
    numberOfContours: Int16;
    xMax: FWord;
    xMin: FWord;
    yMax: FWord;
    yMin: FWord;
}>;
export type GPOSTable = {
    features: Array<{
        lookupListIndices: Array<number>;
        paramsOffset: number;
        tag: string;
    }>;
    lookups: Array<GPOSLookup>;
};
export type GPOSLookup = {
    lookupFlag: number;
    lookupType: number;
    markFilteringSet?: number;
    subtables: Array<{
        extension: ExtensionLookupType2Format1 | ExtensionLookupType2Format2;
        extensionLookupType: number;
        posFormat: number;
    }>;
};
export type ValueRecord = {
    xAdvDevice?: number;
    xAdvance?: number;
    xPlaDevice?: number;
    xPlacement?: number;
    yAdvDevice?: number;
    yAdvance?: number;
    yPlaDevice?: number;
    yPlacement?: number;
};
export type ExtensionLookupType2Format1 = {
    coverage: CoverageTableFormat1 | CoverageTableFormat2;
    pairSets: Array<Array<{
        secondGlyph: number;
        value1?: ValueRecord;
        value2?: ValueRecord;
    }>>;
    posFormat: 1;
    valueFormat1: number;
    valueFormat2: number;
};
export type ClassDefFormat1 = {
    classes: Array<number>;
    format: 1;
    startGlyph: number;
};
export type ClassDefFormat2 = {
    format: 2;
    ranges: Array<{
        class: number;
        endGlyphID: number;
        startGlyphID: number;
    }>;
};
export type ExtensionLookupType2Format2 = {
    classDef1: ClassDefFormat1 | ClassDefFormat2;
    classDef2: ClassDefFormat1 | ClassDefFormat2;
    classRecords: Array<Array<{
        value1?: ValueRecord;
        value2?: ValueRecord;
    }>>;
    coverage: CoverageTableFormat1 | CoverageTableFormat2;
    posFormat: 2;
    valueFormat1: number;
    valueFormat2: number;
};
/**
 * https://learn.microsoft.com/en-us/typography/opentype/spec/chapter2#coverage-table
 */
export type CoverageTableFormat1 = {
    coverageFormat: 1;
    glyphArray: Array<number>;
};
export type CoverageTableFormat2 = {
    coverageFormat: 2;
    rangeRecords: Array<{
        endGlyphID: number;
        startCoverageIndex: number;
        startGlyphID: number;
    }>;
};