/**
 * @license
 * Copyright (c) 2021 Handsoncode. All rights reserved.
 */
import { TranslatableErrorType } from './Cell';
import { DateTime, SimpleDate, SimpleDateTime, SimpleTime } from './DateTimeHelper';
import { ChooseAddressMapping } from './DependencyGraph/AddressMapping/ChooseAddressMappingPolicy';
import { LicenseKeyValidityState } from './helpers/licenseKeyValidator';
import { TranslationPackage } from './i18n';
import { FunctionPluginDefinition } from './interpreter';
import { Maybe } from './Maybe';
import { ParserConfig } from './parser/ParserConfig';
declare type GPUMode = 'gpu' | 'cpu' | 'dev';
export interface ConfigParams {
    /**
     * When set to `true`, makes string comparison accent-sensitive.
     *
     * Applies only to comparison operators.
     *
     * @default false
     *
     * @category String
     */
    accentSensitive: boolean;
    /**
     * Sets a minimum number of elements that a range must have to use binary search.
     *
     * @deprecated Every search of sorted data always uses binary search.
     *
     * @default 20
     *
     * @category Engine
     */
    binarySearchThreshold: number;
    /**
     * When set to `true`, makes string comparison case-sensitive.
     *
     * Applies to comparison operators only.
     *
     * @default false
     *
     * @category String
     */
    caseSensitive: boolean;
    /**
     * When set to `upper`, upper case sorts first.
     *
     * When set to `lower`, lower case sorts first.
     *
     * When set to `false`, uses the locale's default.
     *
     * @default 'lower'
     *
     * @category String
     */
    caseFirst: 'upper' | 'lower' | 'false';
    /**
     * Sets the address mapping policy to be used.
     *
     * Built-in implementations:
     * - `DenseSparseChooseBasedOnThreshold`: sets the address mapping policy separately for each sheet, based on fill ratio.
     * - `AlwaysDense`: uses `DenseStrategy` for all sheets.
     * - `AlwaysSparse`: uses `SparseStrategy` for all sheets.
     *
     * @default AlwaysDense
     *
     * @category Engine
     */
    chooseAddressMappingPolicy: ChooseAddressMapping;
    /**
     * Sets symbols that denote currency numbers.
     *
     * @default ['$']
     *
     * @category Number
     */
    currencySymbol: string[];
    /**
     * Sets date formats that are supported by date-parsing functions.
     *
     * The separator is ignored and can be any of the following:
     * - `-` (dash)
     * - ` ` (empty space)
     * - `/` (slash)
     *
     * `YY` can be replaced with `YYYY`.
     *
     * Any order of `YY`, `MM`, and `DD` is accepted as a date.
     *
     * @default ['DD/MM/YYYY', 'DD/MM/YY']
     *
     * @category Date and Time
     */
    dateFormats: string[];
    /**
     * Sets a separator character that separates procedure arguments in formulas.
     *
     * Must be different from [[decimalSeparator]] and [[thousandSeparator]].
     *
     * @default ','
     *
     * @category Formula Syntax
     */
    functionArgSeparator: string;
    /**
     * Sets a decimal separator used for parsing numerical literals.
     *
     * Can be one of the following:
     * - `.` (period)
     * - `,` (comma)
     *
     * Must be different from [[thousandSeparator]] and [[functionArgSeparator]].
     *
     * @default '.'
     *
     * @category Number
     */
    decimalSeparator: '.' | ',';
    /**
     * When set to `true`, formulas evaluating to `null` evaluate to `0` instead.
     *
     * @default false
     *
     * @category Engine
     */
    evaluateNullToZero: boolean;
    /**
     * Lists additional function plugins to be used by the formula interpreter.
     *
     * @default []
     *
     * @category Formula Syntax
     */
    functionPlugins: any[];
    /**
     * A GPU.js constructor used by array functions.
     *
     * When not provided, the plain CPU implementation is used.
     *
     * @deprecated since version 1.2.
     *
     * @default undefined
     *
     * @category Engine
     */
    gpujs?: any;
    /**
     * Sets array calculations to use either GPU or CPU.
     *
     * When set to `gpu`, tries to use GPU for array calculations.
     *
     * When set to `cpu`, enforces CPU usage.
     *
     * Use other values only for debugging purposes.
     *
     * For more information, see the [GPU.js documentation](https://github.com/gpujs/gpu.js/#readme).
     *
     * @deprecated since version 1.2
     *
     * @default 'gpu'
     *
     * @category Engine
     */
    gpuMode: GPUMode;
    /**
     * When set to `true`, string comparison ignores punctuation.
     *
     * @default false
     *
     * @category String
     */
    ignorePunctuation: boolean;
    /**
     * Sets a translation package for function and error names.
     *
     * @default 'enGB'
     *
     * @category Formula Syntax
     */
    language: string;
    /**
     * Sets year 1900 as a leap year.
     *
     * For compatibility with Lotus 1-2-3 and Microsoft Excel, set this option to `true`.
     *
     * For more information, see [[nullDate]].
     *
     * @default false
     *
     * @category Date and Time
     */
    leapYear1900: boolean;
    /**
     * Sets your HyperFormula license key.
     *
     * To use HyperFormula on the GPLv3 license terms, set this option to `gpl-v3`.
     *
     * To use HyperFormula with your commercial license, set this option to your valid license key string.
     *
     * For more information, go [here](/guide/license-key.html).
     *
     * @default undefined
     *
     * @category License
     */
    licenseKey: string;
    /**
     * Sets the locale for language-sensitive string comparison.
     *
     * Accepts **IETF BCP 47** language tags.
     *
     * @default 'en'
     *
     * @category String
     */
    localeLang: string;
    /**
     * When set to `true`, function criteria require whole cells to match the pattern.
     *
     * When set to `false`, function criteria require just a subword to match the pattern.
     *
     * @default true
     * @category String
     */
    matchWholeCell: boolean;
    /**
     * Sets a column separator symbol for array notation.
     *
     * @default ','
     * @category Formula syntax
     */
    arrayColumnSeparator: ',' | ';';
    /**
     * Sets a row separator symbol for array notation.
     *
     * @default ';'
     * @category Formula syntax
     */
    arrayRowSeparator: ';' | '|';
    /**
     * Sets the maximum number of rows.
     *
     * @default 40,000
     *
     * @category Engine
     * */
    maxRows: number;
    /**
     * Sets the maximum number of columns.
     *
     * @default 18,278
     *
     * @category Engine
     * */
    maxColumns: number;
    /**
     * Internally, each date is represented as a number of days that passed since `nullDate`.
     *
     * This option sets a specific date from which that number of days is counted.
     *
     * @default {year: 1899, month: 12, day: 30}
     *
     * @category Date and Time
     */
    nullDate: SimpleDate;
    /**
     * Sets the interpretation of two-digit year values.
     *
     * Two-digit year values (`xx`) can either become `19xx` or `20xx`.
     *
     * If `xx` is less or equal to `nullYear`, two-digit year values become `20xx`.
     *
     * If `xx` is more than `nullYear`, two-digit year values become `19xx`.
     *
     * @default 30
     *
     * @category Date and Time
     */
    nullYear: number;
    /**
     * Sets a function that parses strings representing date-time into actual date-time.
     *
     * @default defaultParseToDateTime
     *
     * @category Date and Time
     */
    parseDateTime: (dateTimeString: string, dateFormat?: string, timeFormat?: string) => Maybe<DateTime>;
    /**
     * Sets how far two numerical values need to be from each other to be treated as non-equal.
     *
     * `a` and `b` are equal if all three of the following conditions are met:
     * - Both `a` and `b` are of the same sign
     * - `abs(a)` <= `(1+precisionEpsilon) * abs(b)`
     * - `abs(b)` <= `(1+precisionEpsilon) * abs(a)`
     *
     * Additionally, this option controls the snap-to-zero behavior for additions and subtractions:
     * - For `c=a+b`, if `abs(c)` <= `precisionEpsilon * abs(a)`, then `c` is set to `0`
     * - For `c=a-b`, if `abs(c)` <= `precisionEpsilon * abs(a)`, then `c` is set to `0`
     *
     * @default 1e-13
     *
     * @category Number
     */
    precisionEpsilon: number;
    /**
     * Sets calculations' precision level.
     *
     * Numerical outputs are rounded to the `precisionRounding` number of digits after the decimal.
     *
     * @default 14
     *
     * @category Number
     */
    precisionRounding: number;
    /**
     * Sets a function that converts date-time into strings.
     *
     * @default defaultStringifyDateTime
     *
     * @category Date and Time
     */
    stringifyDateTime: (dateTime: SimpleDateTime, dateTimeFormat: string) => Maybe<string>;
    /**
     * Sets a function that converts time duration into strings.
     *
     * @default defaultStringifyDuration
     *
     * @category Date and Time
     */
    stringifyDuration: (time: SimpleTime, timeFormat: string) => Maybe<string>;
    /**
     * When set to `false`, no rounding happens, and numbers are equal if and only if they are of truly identical value.
     *
     * For more information, see [[precisionEpsilon]].
     *
     * @default true
     *
     * @category Number
     */
    smartRounding: boolean;
    /**
     * Sets a thousands separator symbol for parsing numerical literals.
     *
     * Can be one of the following:
     * - empty
     * - `,` (comma)
     * - ` ` (empty space)
     *
     * Must be different from [[decimalSeparator]] and [[functionArgSeparator]].
     *
     * @default ''
     *
     * @category Number
     */
    thousandSeparator: '' | ',' | ' ' | '.';
    /**
     * Sets time formats that will be supported by time-parsing functions.
     *
     * The separator is `:` (colon).
     *
     * Accepts any configuration of at least two of the following, in any order:
     * - `hh`: hours
     * - `mm`: minutes
     * - `ss`: seconds
     *
     * @default ['hh:mm', 'hh:mm:ss.sss']
     *
     * @category Date and Time
     */
    timeFormats: string[];
    /**
     * When set to `true`, array arithmetic is enabled globally.
     *
     * When set to `false`, array arithmetic is enabled only inside array functions (`ARRAYFORMULA`, `FILTER`, and `ARRAY_CONSTRAIN`).
     *
     * For more information, see the [Arrays guide](/guide/arrays.html).
     *
     * @default false
     *
     * @category Engine
     */
    useArrayArithmetic: boolean;
    /**
     * When set to `true`, switches column search strategy from binary search to column index.
     *
     * Using column index improves efficiency of the `VLOOKUP` and `MATCH` functions, but increases memory usage.
     *
     * When searching with wildcards or regular expressions, column search strategy falls back to binary search (even with `useColumnIndex` set to `true`).
     *
     * @default false
     *
     * @category Engine
     */
    useColumnIndex: boolean;
    /**
     * When set to `true`, enables gathering engine statistics and timings.
     *
     * Useful for testing and benchmarking.
     *
     * @default false
     *
     * @category Engine
     */
    useStats: boolean;
    /**
     * Sets the number of elements kept in the undo history.
     *
     * @default 20
     *
     * @category Undo and Redo
     */
    undoLimit: number;
    /**
     * When set to `true`, criteria in functions (SUMIF, COUNTIF, ...) are allowed to use regular expressions.
     *
     * @default false
     * @category String
     */
    useRegularExpressions: boolean;
    /**
     * When set to `true`, criteria in functions (SUMIF, COUNTIF, ...) can use the `*` and `?` wildcards.
     *
     * @default true
     * @category String
     */
    useWildcards: boolean;
}
export declare type ConfigParamsList = keyof ConfigParams;
export declare class Config implements ConfigParams, ParserConfig {
    static defaultConfig: ConfigParams;
    /** @inheritDoc */
    readonly useArrayArithmetic: boolean;
    /** @inheritDoc */
    readonly caseSensitive: boolean;
    /** @inheritDoc */
    readonly chooseAddressMappingPolicy: ChooseAddressMapping;
    /** @inheritDoc */
    readonly accentSensitive: boolean;
    /** @inheritDoc */
    readonly caseFirst: 'upper' | 'lower' | 'false';
    /** @inheritDoc */
    readonly dateFormats: string[];
    /** @inheritDoc */
    readonly timeFormats: string[];
    /** @inheritDoc */
    readonly functionArgSeparator: string;
    /** @inheritDoc */
    readonly arrayColumnSeparator: ',' | ';';
    /** @inheritDoc */
    readonly arrayRowSeparator: ';' | '|';
    /** @inheritDoc */
    readonly decimalSeparator: '.' | ',';
    /** @inheritDoc */
    readonly thousandSeparator: '' | ',' | ' ' | '.';
    /** @inheritDoc */
    readonly language: string;
    /** @inheritDoc */
    readonly licenseKey: string;
    /** @inheritDoc */
    readonly functionPlugins: FunctionPluginDefinition[];
    /** @inheritDoc */
    readonly gpujs?: any;
    /** @inheritDoc */
    readonly gpuMode: GPUMode;
    /** @inheritDoc */
    readonly leapYear1900: boolean;
    /** @inheritDoc */
    readonly ignorePunctuation: boolean;
    /** @inheritDoc */
    readonly localeLang: string;
    /** @inheritDoc */
    readonly evaluateNullToZero: boolean;
    /** @inheritDoc */
    readonly nullYear: number;
    /** @inheritDoc */
    readonly parseDateTime: (dateString: string, dateFormat?: string, timeFormat?: string) => Maybe<SimpleDateTime>;
    /** @inheritDoc */
    readonly stringifyDateTime: (date: SimpleDateTime, formatArg: string) => Maybe<string>;
    /** @inheritDoc */
    readonly stringifyDuration: (time: SimpleTime, formatArg: string) => Maybe<string>;
    /** @inheritDoc */
    readonly precisionEpsilon: number;
    /** @inheritDoc */
    readonly precisionRounding: number;
    /** @inheritDoc */
    readonly smartRounding: boolean;
    /** @inheritDoc */
    readonly useColumnIndex: boolean;
    /** @inheritDoc */
    readonly useStats: boolean;
    /** @inheritDoc */
    readonly binarySearchThreshold: number;
    /** @inheritDoc */
    readonly nullDate: SimpleDate;
    /** @inheritDoc */
    readonly currencySymbol: string[];
    /** @inheritDoc */
    readonly undoLimit: number;
    /**
     * Built automatically based on translation package.
     *
     * @internal
     */
    readonly errorMapping: Record<string, TranslatableErrorType>;
    /** @inheritDoc */
    readonly maxRows: number;
    /** @inheritDoc */
    readonly maxColumns: number;
    /**
     * Built automatically based on language.
     *
     * @internal
     */
    readonly translationPackage: TranslationPackage;
    readonly useRegularExpressions: boolean;
    readonly useWildcards: boolean;
    readonly matchWholeCell: boolean;
    /**
     * Proxied property to its private counterpart. This makes the property
     * as accessible as the other Config options but without ability to change the value.
     *
     * @internal
     */
    get licenseKeyValidityState(): LicenseKeyValidityState;
    constructor({ accentSensitive, binarySearchThreshold, caseSensitive, caseFirst, chooseAddressMappingPolicy, currencySymbol, dateFormats, decimalSeparator, evaluateNullToZero, functionArgSeparator, functionPlugins, gpujs, gpuMode, ignorePunctuation, leapYear1900, localeLang, language, licenseKey, matchWholeCell, arrayColumnSeparator, arrayRowSeparator, maxRows, maxColumns, nullYear, nullDate, parseDateTime, precisionEpsilon, precisionRounding, stringifyDateTime, stringifyDuration, smartRounding, timeFormats, thousandSeparator, useArrayArithmetic, useStats, undoLimit, useColumnIndex, useRegularExpressions, useWildcards, }?: Partial<ConfigParams>);
    getConfig(): ConfigParams;
    mergeConfig(init: Partial<ConfigParams>): Config;
    private warnDeprecatedIfUsed;
}
export declare function getDefaultConfig(): ConfigParams;
export {};