import type { FWord, int16, UFWord, uint16 } from "../../types.ts";
import type { Reader } from "../binary/reader.ts";
/** Horizontal header table */
export interface HheaTable {
    majorVersion: uint16;
    minorVersion: uint16;
    ascender: FWord;
    descender: FWord;
    lineGap: FWord;
    advanceWidthMax: UFWord;
    minLeftSideBearing: FWord;
    minRightSideBearing: FWord;
    xMaxExtent: FWord;
    caretSlopeRise: int16;
    caretSlopeRun: int16;
    caretOffset: int16;
    reserved1: int16;
    reserved2: int16;
    reserved3: int16;
    reserved4: int16;
    metricDataFormat: int16;
    numberOfHMetrics: uint16;
}
/**
 * Parse hhea table - horizontal header with metrics for horizontal layout
 * @param reader - Reader positioned at start of hhea table
 * @returns Parsed hhea table
 */
export declare function parseHhea(reader: Reader): HheaTable;