import { Characters } from "../pattern-builder/characters.js";
import type { PatternInput } from "../types/pattern-input.js";
/**
 * Creates a pattern builder for the character set operator.
 *
 * @param patterns - The patterns to create the character set operator from.
 * @returns The pattern builder.
 *
 * @example pre-defined pattern with string
 * ```ts
 * characterSet(alpha, '#!');
 * // => /[a-zA-Z#!]/
 * ```
 *
 * @example pre-defined pattern with pattern
 * ```ts
 * characterSet(digit, /[a-fA-F]/);
 * // => /[\da-fA-F]/
 * ```
 *
 * @example only string
 * ```ts
 * characterSet("a", "b", "c");
 * // => /[abc]/
 * ```
 */
export declare function characterSet(...patterns: PatternInput[]): Characters;
/** The pre-defined digit pattern. */
export declare const digit: Characters;
/** The pre-defined alpha pattern. */
export declare const alpha: Characters;
/** The pre-defined hex digit pattern. */
export declare const hexDigit: Characters;
//# sourceMappingURL=character-set.d.ts.map