import type { Fn, PositiveInteger, Result } from '../../mod.js';
import { IllegalExpressionError, NaNError } from '../../mod.js';
import { a_calc } from '../Ext/aCalc.js';
/** ## `CalcFmt` : calc格式化选项, */
export declare const CalcFmt: {
    /** 千分位数字字符串 */
    readonly Thousandle: ",";
    /** A分之B中的'/' */
    readonly DividedBy: "/";
    /** 正数带+号 */
    readonly Positive: "+";
    /** 对结果进行百分比格式化(如果是普通数字会乘以100) */
    readonly Percent: "%";
    /** 科学计数法 */
    readonly Exponential: "!e";
    /** 去除单位 */
    readonly NoUnit: "!u";
    /** @default 去尾四舍五入  */
    readonly Floor: "~-";
    /** 进一四舍五入 */
    readonly Celi: "~+";
    /** 四舍五入 */
    readonly Round: "~5";
    /** 四舍六入五成双 - 和`Number.toFixed()`算法相同 */
    readonly Rounding: "~6";
    /** 最多保留`N`位小数(只做截取) */
    readonly ToFixed: <N extends number>(limit: PositiveInteger<N>) => Fmt;
    /** 保留`N`位小数,如果不足就补0(只做截取) */
    readonly MustToFixed: <N extends number>(limit: PositiveInteger<N>) => Fmt;
};
type DecimalLimit = '1' | '2' | '3' | '4' | '5' | '6' | '7' | '8' | '9';
type OtherFM = ',' | '/' | '+' | '%' | '!e' | '!u' | '~-' | '~+' | '~5' | '~6';
type Fmt = `>${DecimalLimit}` | `<${DecimalLimit}` | `=${DecimalLimit}` | `>=${DecimalLimit}` | `<=${DecimalLimit}` | OtherFM;
type FillData = Record<number | string, number | string> | Array<Record<number | string, number | string>>;
type CalcConf<T> = {
    /** 结果格式化数组 */
    fmt?: Array<Fmt>;
    /** 是否开启结果缓存,开启之后遇到后一个相同表达式会直接给出结果 */
    memo?: boolean;
    /**  是否带上单位进行计算 */
    unit?: boolean;
    /** 错误替代值,结算发生错误时用于替代的错误值 */
    error?: Result<never, T>;
};
/** ## calc : 对[calc](https://github.com/Autumn-one/a-calc-old/blob/main/README_ZH.md)的二次封装
用于 js数字精准计算、数字格式化、完备的舍入规则、单位计算
@example 重载
```ts
  //normal type
  const r2 = calc('1+1000', {}, { fmt: [','] }).unwrap()
  assertEquals(r2, '1,001')

  //curry type
  const r3 = calc({ a: '1.123', b: '2.23' }, { unit: true })('a+b').unwrap()
  assertEquals(r3, '3.353')

  //catch NaNError
  calc({ a: '1.2.3' })('a+2').match_err((err) => { assert(err instanceof NaNError) })

```
@tips conf -> fmt: 格式化数组
### 格式化列表规则：
+ `>|>=|<|<=|=`数字 表示限制小数位数，例: <=2 小数位数小于等于2 >3 小数位数必须大于3，这个等价于>=4
+ `,` 输出为千分位数字字符串
+ `/` 输出为分数
+ `+` 输出的正数带+ 号
+ `%` 输出百分比数字，可以和限制小数组合使用
+ `!e` 输出为科学计数法
+ `!n` 输出为数字而不是数字字符串，n可以大写，1.3.6版本之后这个优先级为最高，任何其他的格式化参数无法影响该参数。
+ `!u` 从结果中去除单位
### 四舍五入规则：
+ `~-` 去尾，默认的舍入规则
+ `~+` 进一
+ `~5` 四舍五入
+ `~6` 四舍六入五成双 - 和`Number.toFixed()`算法相同
@category Function
 */
declare function _calc<T = never>(expr: string | number, val_map?: FillData, conf?: CalcConf<T>): Result<string, IllegalExpressionError | NaNError | T>;
declare function _calc<T = never>(val_map: FillData, conf?: CalcConf<T>, other?: never): Fn<string, Result<string, IllegalExpressionError | NaNError | T>>;
export declare const calc: typeof _calc;
export declare const calc_plus: <const T extends "number" | "string" = "number">(a: number | string, b: number | string, type: T) => T extends "number" ? number : string;
export declare const calc_sub: <const T extends "number" | "string" = "number">(a: number | string, b: number | string, type: T) => T extends "number" ? number : string;
export declare const calc_mul: <const T extends "number" | "string" = "number">(a: number | string, b: number | string, type: T) => T extends "number" ? number : string;
export declare const calc_div: <const T extends "number" | "string" = "number">(a: number | string, b: number | string, type: T) => T extends "number" ? number : string;
export declare const calc_idiv: <const T extends "number" | "string" = "number">(a: number | string, b: number | string, type: T) => T extends "number" ? number : string;
export declare const calc_pow: <const T extends "number" | "string" = "number">(a: number | string, b: number | string, type: T) => T extends "number" ? number : string;
export declare const calc_mod: <const T extends "number" | "string" = "number">(a: number | string, b: number | string, type: T) => T extends "number" ? number : string;
export declare const calc_parse_thousands: (str: string) => string;
export declare const calc_origin: a_calc.CalcWrap;
export {};
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