import { TextField } from "@microsoft/fast-foundation";
export declare class UnitsTextField extends TextField {
    private wordBoundryRegex;
    /**
     * @internal
     */
    connectedCallback(): void;
    /**
     * Finds the first index of a regular expression in a string.
     * @param searchString The string to search.
     * @param regex The regular expression to match.
     * @param position An optional starting position.
     * @returns The first matching index within the string or -1 if it is not found.
     */
    indexOf(searchString: string, regex: RegExp, position?: number): number;
    /**
     * Finds the last index of a regular expression in a string.
     * @param searchString The string to search.
     * @param regex The regular expression to match.
     * @param position An optional starting position.
     * @returns The last matching index within the string or -1 if it is not found.
     */
    lastIndexOf(searchString: string, regex: RegExp, position?: number): number;
    handleKeyDown: (ev: KeyboardEvent) => boolean;
    handleTextInput(): void;
}