import { BaseSuggestionData, MentionData, SuggestionData, SuggestionDataSource, SuggestionsMap } from '../types';
/**
 * Checks whether the given value is a number.
 * @param val The value to check
 * @returns True if val is a number;
 */
export declare function isNumber(val: any): val is number;
/**
 * Searches the provided value for the mentions markup in the provided config and passes each found mention
 * to the provided processor functions.
 * @param value The value to search for the mentions markup.
 * @param dataSources An array of all DataSources used in the markup.
 * @param markupProcessor A callback function that processes each mention markup instance.
 * @param plainTextProcessor A callback function that processes each plain text instance.
 */
export declare function iterateMentionsMarkup<T extends BaseSuggestionData>(value: string, dataSources: SuggestionDataSource<T>[], markupProcessor: (match: string, matchIndex: number, plainTextIndex: number, id: string, display: string, mentionIndex: number, start: number) => void, plainTextProcessor?: (value: string, start: number, currentIndex: number) => void, multiline?: boolean): void;
/**
 * Converts the given value to plain text.
 * @param value The value which possibly contains mention markup.
 * @param dataSources An array of all DataSources used in the markup.
 * @param multiline Whether the value is being converted in a multiline textfield.
 * @returns value with mention markup converted to plain text.
 */
export declare function getPlainText<T extends BaseSuggestionData>(value: string, dataSources: SuggestionDataSource<T>[], multiline?: boolean): string;
/**
 * Applies changes from the given plain text value to the given markup value, guided
 * by the selected text ranges before and after the change.
 * @param value The current markup string.
 * @param plainTextValue The new plain text string.
 * @param selectionStartBefore The start of the selected text range before the change.
 * @param selectionEndBefore The end of the selected text range before the change.
 * @param selectionEndAfter The end of the selected text range after the change.
 * @param dataSources An array of DataSources used in the markup string.
 * @param multiline Whether the value is for a multiline text field.
 */
export declare function applyChangeToValue<T extends BaseSuggestionData>(value: string, plainTextValue: string, selectionStartBefore: number | null, selectionEndBefore: number | null, selectionEndAfter: number, dataSources: SuggestionDataSource<T>[], multiline?: boolean): string;
/**
 * Converts a plain text character index to the corresponding index in the markup value string.
 * @param value The markup value string.
 * @param dataSources An array of all DataSources used in the markup string.
 * @param indexInPlainText The index in the plain text string.
 * @param inMarkupCorrection The behavior if the corresponding index is inside a mention.
 *   START returns the index of the mention markup's first character (default).
 *   END returns the index after the mention markup's last character.
 *   NULL returns null.
 * @returns The index in the markup string.
 */
export declare function mapPlainTextIndex<T extends BaseSuggestionData>(value: string, dataSources: SuggestionDataSource<T>[], indexInPlainText: number, inMarkupCorrection?: 'START' | 'END' | 'NULL'): number | null | undefined;
/**
 * Replaces the characters in str from start to end with insert.
 * @param str The string to edit.
 * @param start The starting position to splice (inclusive).
 * @param end The ending position to splice (exclusive).
 * @param insert The string to insert at the start position.
 * @returns The edited string.
 */
export declare function spliceString(str: string, start: number, end: number, insert: string): string;
/**
 * Converts the index of a mention in plain text to the index of the first character
 * of the mention in the plain text. If the given index is not inside a mention, undefined is
 * returned.
 * @param value The markup value string.
 * @param dataSources An array of DataSources used in the markup string.
 * @param indexInPlainText The index of the mention in plain text.
 * @returns The start of the index in the plain text.
 */
export declare function findStartOfMentionInPlainText<T extends BaseSuggestionData>(value: string, dataSources: SuggestionDataSource<T>[], indexInPlainText: number): number | undefined;
/**
 * Parses a list of mentions from the given markup string.
 * @param value The markup string value to parse.
 * @param dataSources An array of SuggestionDataSources used in the markup string.
 * @returns An array of MentionDatas parsed from the given markup string.
 */
export declare function getMentions<T extends BaseSuggestionData>(value: string, dataSources: SuggestionDataSource<T>[]): MentionData[];
/**
 * Returns the number of individual SuggestionData objects in the provided suggestions map.
 * @param suggestions The suggestions map to count.
 * @returns The number of SuggestionData objects in suggestions.
 */
export declare function countSuggestions<T extends BaseSuggestionData>(suggestions: SuggestionsMap<T>): any;
/**
 * Returns the index of the end of the last mention in the given markup string.
 * @param value The markup string to search for mentions.
 * @param dataSources An array of SuggestionDataSources used in the markup string.
 * @returns The index of the end of the last mention, or 0 if there are no mentions.
 */
export declare function getEndOfLastMention<T extends BaseSuggestionData>(value: string, dataSources: SuggestionDataSource<T>[]): number;
/**
 * Converts the given trigger to regex.
 * @param trigger The trigger to use for mentions.
 * @param allowSpaceInQuery Whether to allow a space in the query.
 * @returns A regex version of trigger.
 */
export declare function makeTriggerRegex(trigger: string | RegExp, allowSpaceInQuery?: boolean): RegExp;
/**
 * Returns a data provider for the given data.
 * @param data An array of SuggestionData objects, or an asychronous function that returns an array of SuggestionData objects.
 * @param ignoreAccents Whether to ignore accents while comparing the data with the query.
 * @param customFilter Optional custom filter function to use instead of the default substring search.
 * @returns A function which returns an array of SuggestionData objects based on a query string.
 */
export declare function getDataProvider<T extends BaseSuggestionData>(data: SuggestionData<T>[] | ((query: string) => Promise<SuggestionData<T>[]>), ignoreAccents?: boolean, customFilter?: (suggestion: SuggestionData<T>, query: string) => boolean): (query: string) => Promise<SuggestionData<T>[]>;
/**
 *
 * @param markup The markup format to use.
 * @param id The id of the mention.
 * @param display The display string of the mention.
 * @returns The markup string for the mention.
 */
export declare const makeMentionsMarkup: (markup: string, id: string, display?: string) => string;