import { Month, Options, PatternParser, Weekday } from "./core";
import { NamedRegExp } from "../characters";
import { DateFormatter, StringDateFormatter } from "./format";
import DateTimeFormatPart = Intl.DateTimeFormatPart;
import DateTimeFormatPartTypes = Intl.DateTimeFormatPartTypes;
export interface DataExtractor {
    extract(): string[];
}
export declare class BaseDataExtractor {
    protected locale: string;
    protected options: Options;
    protected dates: Date[];
    protected partType: DateTimeFormatPartTypes;
    constructor(locale: string, options: Options, dates: Date[], partType: DateTimeFormatPartTypes);
}
export declare function exactFormat(locale: string, options: Options, dates: Date[]): string[];
export declare abstract class FromFormatStringDataExtractor extends BaseDataExtractor implements DataExtractor {
    extract(): string[];
    diff(data: string[]): string[];
}
export declare class FromFormatStringMonthExtractor extends FromFormatStringDataExtractor {
    constructor(locale: string, options: Options, dates: Date[]);
    diff(data: string[]): string[];
    private weekday;
    static readonly replaceYMD: RegExp;
    private replaceYearMonthDay;
    static readonly restoreYMD: RegExp;
    private restoreYearMonthDay;
    private day;
}
export declare class FromFormatStringWeekdayExtractor extends FromFormatStringDataExtractor {
    constructor(locale: string, options: Options, dates: Date[]);
    diff(data: string[]): string[];
    private convertToNumeral;
}
export declare class LearningDateFormatter implements DateFormatter {
    private locale;
    private options;
    private yearValue;
    private monthValue;
    private dayValue;
    private weekdayValue;
    private numerals;
    private constructor();
    static create(locale: string, options?: Options): LearningDateFormatter;
    get formatter(): StringDateFormatter;
    get formatted(): string;
    get months(): PatternParser<Month>;
    get month(): string;
    get weekdays(): PatternParser<Weekday>;
    get weekday(): string;
    get year(): string;
    get day(): string;
    get learningNamesPattern(): NamedRegExp;
    get actualNamesPattern(): NamedRegExp;
    format(date: Date): string;
    formatToParts(date: Date): DateTimeFormatPart[];
    private collapseLiterals;
    private getType;
    private parsable;
}