import { TransformSuggestionToMatchFilter } from '../commonTypes';
export declare const FILTER_RULES: {
    includes: "includes";
    smart: "smart";
    startsWith: "startsWith";
};
/**
 * Normalizes string for later comparison
 * @param {string} str - Unnormalized string
 * @param {TransformSuggestionToMatchFilter | undefined} transformSuggestionToMatchFilter - Eliminates differences between suggestions from filtered list and value in input
 *
 * @returns {string} Normalized string
 */
export declare const normalizeString: (str: string, transformSuggestionToMatchFilter?: TransformSuggestionToMatchFilter | undefined) => string;
export declare const filterByIncludes: (suggestion: string, value: string) => boolean;
export declare const filterByStartsWith: (suggestion: string, value: string) => boolean;
export declare const escapeRegexp: (string: string) => string;
export declare const getIsSentenceIncludingWords: (sentence: string, words: string) => boolean;
/**
 * Filters suggestions by a given Rule
 * @param {string} suggestion - Suggestion from list being compared
 * @param {string} value - Value in input
 * @param {'includes' | 'includes' | 'startsWith' | undefined} filterRule - Rule by which filtering occurs
 * @param {TransformSuggestionToMatchFilter | undefined} transformSuggestionToMatchFilter - Eliminates differences between suggestions from filtered list and value in input
 *
 * @returns {boolean} Suggestion passed filter?
 */
export declare const filterSuggestionByRule: (suggestion: string, value: string, filterRule?: "includes" | "startsWith" | "smart" | undefined, transformSuggestionToMatchFilter?: TransformSuggestionToMatchFilter | undefined) => boolean;