import { SerialParser } from '../types/index.js';
export interface DelimiterOptions {
    /** Whether to include the delimiter at the end of each emitted value. Defaults to false. */
    includeDelimiter?: boolean;
}
/**
 * Creates a delimiter-based parser that splits the byte stream on the given
 * delimiter and emits string messages.
 *
 * Commonly used with `'\n'` for Arduino `Serial.println()` output.
 *
 * @param char - The delimiter string (e.g. `'\n'`, `'\r\n'`, `';'`).
 * @param options - Optional configuration.
 * @returns A {@link SerialParser} that emits `string` values.
 *
 * @example
 * ```ts
 * import { AbstractSerialDevice, delimiter } from 'webserial-core';
 *
 * class MyDevice extends AbstractSerialDevice<string> {
 *   constructor() {
 *     super({ baudRate: 9600, parser: delimiter('\n') });
 *   }
 * }
 * ```
 */
export declare function delimiter(char: string, options?: DelimiterOptions): SerialParser<string>;
/**
 * Creates a delimiter-based parser that splits the byte stream on the given
 * binary delimiter and emits Uint8Array chunks.
 *
 * @param char - The delimiter as a `Uint8Array` or `number[]`.
 * @param options - Optional configuration.
 * @returns A {@link SerialParser} that emits `Uint8Array` values.
 *
 * @example
 * ```ts
 * import { AbstractSerialDevice, delimiter } from 'webserial-core';
 *
 * class MyDevice extends AbstractSerialDevice<Uint8Array> {
 *   constructor() {
 *     super({ baudRate: 9600, parser: delimiter(new Uint8Array([0x0d, 0x0a])) });
 *   }
 * }
 * ```
 */
export declare function delimiter(char: Uint8Array | number[], options?: DelimiterOptions): SerialParser<Uint8Array>;