export interface Pos {
    line: number;
    column: number;
    pos: number;
    name: string | null;
    fixed?: boolean;
}
export declare function formatPos(p?: Pos): string;
export declare function startPos(name: string | null): Pos;
export declare function fixPos(p: Pos): Pos;
export declare function advancePos(p: Pos, ch: string): boolean;