import { Optional } from '@ephox/katamari';
export interface CharPos {
    readonly ch: string;
    readonly offset: number;
}
declare const previous: (text: string, offsetOption: Optional<number>) => Optional<CharPos>;
declare const next: (text: string, offsetOption: Optional<number>) => Optional<CharPos>;
declare const rfind: (str: string, regex: RegExp) => Optional<number>;
declare const lfind: (str: string, regex: RegExp) => Optional<number>;
export { previous, next, rfind, lfind };
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