import { ImmutableAugmentedItem, Item } from '../../stores/items-store/interfaces';
import { ProcessedField } from '../../stores/fields-store/interfaces';
import { DraftStringQueryOptions, ProcessedStringQueryOptions } from './interfaces';
/**
 * String query searcher.
 */
export declare class StringQuerySearcher<T extends Item<T>> {
    protected readonly getFields: () => ProcessedField<T, keyof T>[];
    protected readonly hasField: (key: keyof T) => boolean;
    constructor(getFields: () => ProcessedField<T, keyof T>[], hasField: (key: keyof T) => boolean);
    /**
     * Processes string query options.
     */
    processOptions(options: DraftStringQueryOptions<T>): ProcessedStringQueryOptions<T>;
    /**
     * Checks if the given options are valid.
     */
    checkKeys(options: ProcessedStringQueryOptions<T>): boolean;
    /**
     * Search items by string query.
     */
    search(items: ImmutableAugmentedItem<T>[], options: ProcessedStringQueryOptions<T>): ImmutableAugmentedItem<T>[];
    /**
     * Search items by string query.
     */
    protected _search(items: ImmutableAugmentedItem<T>[], options: ProcessedStringQueryOptions<T>): ImmutableAugmentedItem<T>[];
    /**
     * Generates field value extractor function.
     */
    protected genQuerySplitterIntoWords(wordSeparators: ProcessedStringQueryOptions<T>['wordSeparators'], ignoreWhitespace: boolean, isCaseSensitive: boolean): (query: string) => (string)[];
    protected genWordsMatcherFn(options: ProcessedStringQueryOptions<T>): (subWord: string, word: string) => boolean;
    protected genPhrasesMatcherFn(wordsMatcherFn: (subWord: string, word: string) => boolean, options: ProcessedStringQueryOptions<T>): (searchWords: string[], itemWords: string[][]) => boolean;
}