/** Platform-specific conventions for the line ending format (i.e., the "end-of-line"). */
export declare enum EOL {
    /** Line Feed. Typically used in Unix (and Unix-like) systems. */
    LF = "\n",
    /** Carriage Return + Line Feed. Historically used in Windows and early DOS systems. */
    CRLF = "\r\n"
}
/**
 * Detect the EOL character for string input.
 * returns null if no newline.
 *
 * @example
 * ```ts
 * import { detect, EOL } from "https://deno.land/std@$STD_VERSION/fs/mod.ts";
 *
 * const CRLFinput = "deno\r\nis not\r\nnode";
 * const Mixedinput = "deno\nis not\r\nnode";
 * const LFinput = "deno\nis not\nnode";
 * const NoNLinput = "deno is not node";
 *
 * detect(LFinput); // output EOL.LF
 * detect(CRLFinput); // output EOL.CRLF
 * detect(Mixedinput); // output EOL.CRLF
 * detect(NoNLinput); // output null
 * ```
 */
export declare function detect(content: string): EOL | null;
/**
 * Format the file to the targeted EOL.
 *
 * @example
 * ```ts
 * import { EOL, format } from "https://deno.land/std@$STD_VERSION/fs/mod.ts";
 *
 * const CRLFinput = "deno\r\nis not\r\nnode";
 *
 * format(CRLFinput, EOL.LF); // output "deno\nis not\nnode"
 * ```
 */
export declare function format(content: string, eol: EOL): string;