import type { SplitWords, JoinWords } from "./utils/index.js";
import type { LowerCase, LowerCaseAll } from "./lower-case.js";
import type { CapitalizeAll } from "./capitalize.js";
export type CamelCaseOptions = {
    /**
     * Whether to preserved consecutive uppercase letters.
     * Default: `true`
     */
    preserveConsecutiveUppercase?: boolean;
};
type PreserveConsecutiveUppercase<O extends CamelCaseOptions | undefined> = O extends undefined ? true : O extends {
    preserveConsecutiveUppercase?: infer PreserveUppercase;
} ? PreserveUppercase extends false ? false : true : true;
/**
 * Convert a string type to camelCase.
 * @example
 * ```ts
 * type CamelCaseString = CamelCase<"hello world">; // "helloWorld"
 * ```
 */
export type CamelCase<T extends string, O extends CamelCaseOptions | undefined = undefined> = T extends string ? SplitWords<T> extends [infer First, ...infer Rest] ? First extends string ? Rest extends string[] ? PreserveConsecutiveUppercase<O> extends false ? JoinWords<[LowerCase<First>, ...CapitalizeAll<LowerCaseAll<Rest>>]> : JoinWords<[LowerCase<First>, ...CapitalizeAll<Rest>]> : T : never : T : never;
/**
 * Convert a string to camelCase.
 * @example
 * ```ts
 * const camelCaseString = toCamelCase("hello world"); // "helloWorld"
 * ```
 */
export declare function toCamelCase<T extends string, O extends CamelCaseOptions | undefined = undefined>(string: T, options?: O): CamelCase<T, O>;
export {};
//# sourceMappingURL=camel-case.d.ts.map