import { AbstractControl, ValidationErrors, ValidatorFn } from '@angular/forms';
/**
 * 这里我们不检查字符串，所以它也能处理数组
 * @param value
 * @returns boolean
 */
export declare function isEmptyInputValue(value: null | undefined | string): boolean;
/**
 * 非严格比较是有意的，用于检查“null”和“undefined”值
 * @param value
 * @returns boolean
 */
export declare function hasValidLength(value: null | undefined | string): boolean;
/**
 * 正则表达式
 */
export declare const regex: {
    CHINESE: RegExp;
    URL: RegExp;
    IP: RegExp;
};
export declare class SimValidators {
    /**
     * @description 如果是输入字符串 input:text
     * @param control
     * @returns ValidationErrors | null
     */
    static requiredInput(control: AbstractControl): ValidationErrors | null;
    /**
     * @description 比较2个值相等
     * @param compare
     * @returns ValidationErrors | null
     */
    static equal(compare: AbstractControl): ValidatorFn;
    /**
     * @description 比较2个值不相等
     * @param compare
     * @returns ValidationErrors | null
     */
    static notEqual(compare: AbstractControl): ValidatorFn;
    /**
     * @description 验证url
     * @param control
     * @returns {(ValidationErrors | null)}
     * @memberof SimValidators
     */
    static url(control: AbstractControl): ValidationErrors | null;
    /**
     * @description 验证ip
     * @param control
     * @returns {(ValidationErrors | null)}
     * @memberof SimValidators
     */
    static ip(control: AbstractControl): ValidationErrors | null;
    /**
     * @description 检查数字是否在指定范围内
     * @param {number} min
     * @param {number} max
     * @returns ValidationErrors | null
     */
    static range(min: number, max: number): ValidatorFn;
    /**
     * @description 检查字符串的长度是否在指定范围内
     * @param {number} minLength
     * @param {number} maxLength
     * @returns ValidationErrors | null
     */
    static rangeLength(minLength: number, maxLength: number): ValidatorFn;
    /**
     * @description 检查是否是中文，并且长度是否在指定范围内
     * @param {number} minLength
     * @param {number} maxLength
     * @returns ValidationErrors | null
     */
    static chineseLength(minLength: number, maxLength: number): ValidatorFn;
    /**
     * @description 检查字符长度区分中英文，长度是否在指定范围内 一个中文算2个字符
     * @param {number} minLength
     * @param {number} maxLength
     * @returns ValidationErrors | null
     */
    static charLength(minLength: number, maxLength: number): ValidatorFn;
}