import type { FormatterHelpers } from './formatter';
export declare const DELIMITERS: string[];
export declare const NAVIGATION_KEYS: string[];
export declare const INVALID_PATTERN: RegExp;
/** Result of processInput */
interface InputResult {
    newDigits: string;
    caretDigitIndex: number;
}
/** Result of processKeydown */
interface KeydownResult {
    newDigits: string;
    caretDigitIndex: number;
}
/** Result of processPaste */
interface PasteResult {
    newDigits: string;
    caretDigitIndex: number;
}
/** Parameters for processInput */
interface ProcessInputParams {
    formatter: FormatterHelpers;
}
/** Parameters for processKeydown */
interface ProcessKeydownParams {
    digits: string;
    formatter: FormatterHelpers;
}
/** Parameters for processPaste */
interface ProcessPasteParams {
    digits: string;
    formatter: FormatterHelpers;
}
/**
 * Extract digits from a string, optionally limiting to maxLength
 */
export declare function extractDigits(value: string, maxLength?: number): string;
/**
 * Get current selection range from input element
 */
export declare function getSelection(el: HTMLInputElement | null): [number, number];
/**
 * Set caret position in input element
 */
export declare function setCaret(el: HTMLInputElement | null, position: number): void;
/**
 * Process beforeinput event - determine if input should be blocked
 */
export declare function processBeforeInput(e: InputEvent): void;
/**
 * Process input event - extract digits and calculate caret position
 */
export declare function processInput(e: Event, params: ProcessInputParams): InputResult | undefined;
/**
 * Process keydown event - handle backspace, delete, digits, etc.
 */
export declare function processKeydown(e: KeyboardEvent, params: ProcessKeydownParams): KeydownResult | undefined;
/**
 * Process paste event - extract digits and insert at correct position
 */
export declare function processPaste(e: ClipboardEvent, params: ProcessPasteParams): PasteResult | undefined;
export {};
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