import { ExtractedMetrics, FontMetrics, VerticalMetrics } from '../types';
export interface FontDataExtraction {
    metrics: ExtractedMetrics;
    features: {
        tags: string[];
        names: {
            [tag: string]: string;
        };
    } | undefined;
}
export declare class FontMetadataExtractor {
    static extractMetadata(fontBuffer: ArrayBuffer): ExtractedMetrics;
    static extractFeatureTags(fontBuffer: ArrayBuffer): {
        tags: string[];
        names: {
            [tag: string]: string;
        };
    } | undefined;
    private static extractFeatureDataFromTable;
    private static extractAxisNames;
    private static getNameFromNameTable;
    static extractAll(fontBuffer: ArrayBuffer): FontDataExtraction;
    private static buildNameIndex;
    private static getNameFromIndex;
    private static extractMetricsWithIndex;
    private static extractAxisNamesWithIndex;
    private static extractFeaturesWithIndex;
    private static extractFeatureData;
    private static tagToString;
    static getVerticalMetrics(metrics: ExtractedMetrics): VerticalMetrics;
    static getFontMetrics(metrics: ExtractedMetrics): FontMetrics;
}