export interface ParseExtReturn {
    file: string | undefined;
    type: 'json' | 'toml' | 'yaml' | 'markdown' | 'unknown';
    env?: 'dev' | 'demo' | undefined;
    path?: string | undefined;
    ext?: string | undefined;
}
export declare function parseExt(p: string): ParseExtReturn;
export declare function fileExt(file: string): {
    file: undefined;
    env?: undefined;
    path?: undefined;
    ext?: undefined;
} | {
    file: string;
    env: "dev" | "demo" | undefined;
    path: string;
    ext: string;
} | {
    file: string;
    env?: undefined;
    path?: undefined;
    ext?: undefined;
};
export declare function normalizeWindowsPath(input?: string): string;