import type { Language } from "./Language";
import { Entity, IEntitySettings, IEntityPrivate } from "./Entity";
/**
 * @ignore
 */
export interface INumberSuffix {
    number: number;
    suffix: string;
}
export interface INumberFormatterSettings extends IEntitySettings {
    /**
     * Format used when no other format is given: a format string, or options
     * for `Intl.NumberFormat`.
     *
     * @default "#,###.#####"
     */
    numberFormat?: string | Intl.NumberFormatOptions;
    /**
     * Values below this use the negative part of the format (after the first
     * `|`), and a value equal to it the zero part (after the second `|`). The
     * minus sign still shows only for values below `0`.
     *
     * @default 0
     */
    negativeBase?: number;
    /**
     * Suffixes for big numbers and the values they stand for, such as `"M"`
     * for a million. Used by the `a` modifier of the number format.
     */
    bigNumberPrefixes?: INumberSuffix[];
    /**
     * Suffixes for small numbers and the values they stand for, such as `"m"`
     * for a thousandth. Used by the `a` modifier of the number format.
     */
    smallNumberPrefixes?: INumberSuffix[];
    /**
     * Numbers below this use `smallNumberPrefixes` with the `a` modifier;
     * others use `bigNumberPrefixes`.
     *
     * @default 1
     */
    smallNumberThreshold?: number;
    /**
     * Suffixes for data sizes and the byte counts they stand for, such as
     * `"KB"` for 1024. Used by the `b` modifier of the number format.
     */
    bytePrefixes?: INumberSuffix[];
    /**
     * Data fields that hold numbers. Text placeholders with these fields are
     * formatted as numbers even without `formatNumber()`.
     */
    numericFields?: string[];
    /**
     * Locale for formats given as `Intl.NumberFormat` options, such as
     * `"de-DE"`. The browser's locale if not set.
     *
     * @see {@link https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Intl/NumberFormat} for more info
     */
    intlLocales?: string;
    /**
     * Forces formatted numbers to read left to right, even in a right-to-left
     * layout.
     *
     * @default false
     * @since 5.3.13
     */
    forceLTR?: boolean;
}
export interface INumberFormatterPrivate extends IEntityPrivate {
}
/**
 * Formats numbers in labels, tooltips and other text.
 *
 * @see {@link https://www.amcharts.com/docs/v5/concepts/formatters/formatting-numbers/} for more info
 * @important
 */
export declare class NumberFormatter extends Entity {
    _settings: INumberFormatterSettings;
    _privateSettings: INumberFormatterPrivate;
    static className: string;
    static classNames: Array<string>;
    protected _setDefaults(): void;
    _beforeChanged(): void;
    /**
     * Formats a number as a string.
     *
     * @param value      Value to format
     * @param format     Format string or `Intl.NumberFormat` options; `numberFormat` if not given
     * @param precision  Minimum number of decimals, padded with zeros; ignored for a format with a modifier
     * @return Formatted number
     */
    format(value: number | string, format?: string | Intl.NumberFormatOptions, precision?: number): string;
    /**
     * Parses supplied format into structured object which can be used to format
     * the number.
     *
     * @param format Format string, e.g. "#,###.00"
     * @param language Language
     * @ignore
     */
    protected parseFormat(format: string, language: Language): any;
    /**
     * Applies parsed format to a numeric value.
     *
     * @param value    Value
     * @param details  Parsed format as returned by parseFormat()
     * @return Formatted number
     * @ignore
     */
    protected applyFormat(value: number, details: any): string;
    protected applyPrefix(value: number, prefixes: any[], force?: boolean): any[];
    /**
     * Replaces a double vertical bar (`||`) with a temporary placeholder.
     *
     * @ignore Exclude from docs
     * @param text  Input text
     * @return Escaped text
     */
    escape(text: string): string;
    /**
     * Replaces the placeholder with a single vertical bar (`|`).
     *
     * @ignore Exclude from docs
     * @param text  Escaped text
     * @return Unescaped text
     */
    unescape(text: string): string;
}
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