export type Item = Emittable | string;
export declare const DEFAULT_WIDTH = 80;
export declare class Formatter {
    width: number;
    indentDelta: string;
    currentIndent: string;
    buffer: Array<string>;
    get indentSize(): number;
    set indentSize(n: number);
    write(i: Item): void;
    newline(): void;
    toString(): string;
    withIndent(f: () => void): void;
    clone(): Formatter;
}
export declare function formatItems(i: Item[], width?: number): string;
export interface Emittable {
    writeOn(f: Formatter): void;
}
export declare class Sequence implements Emittable {
    items: Array<Item>;
    constructor(items: Array<Item>);
    get separator(): string;
    get terminator(): string;
    writeOn(f: Formatter): void;
}
export declare class CommaSequence extends Sequence {
    get separator(): string;
}
export declare abstract class Grouping extends CommaSequence {
    abstract get open(): string;
    abstract get close(): string;
    writeHorizontally(f: Formatter): void;
    writeVertically(f: Formatter): void;
    writeOn(f: Formatter): void;
}
export declare class Parens extends Grouping {
    get open(): string;
    get close(): string;
}
export declare class OperatorSequence extends Parens {
    operator: string;
    constructor(operator: string, items: Array<Item>);
    get separator(): string;
}
export declare class Brackets extends Grouping {
    get open(): string;
    get close(): string;
}
export declare class AngleBrackets extends Grouping {
    get open(): string;
    get close(): string;
}
export declare class Braces extends Grouping {
    get open(): string;
    get close(): string;
}
export declare class Block extends Braces {
    get separator(): string;
    get terminator(): string;
}
export declare const seq: (...items: Item[]) => Sequence;
export declare const commas: (...items: Item[]) => CommaSequence;
export declare const parens: (...items: Item[]) => Parens;
export declare const opseq: (zero: string, op: string, ...items: Item[]) => string | OperatorSequence;
export declare const brackets: (...items: Item[]) => Brackets;
export declare const anglebrackets: (...items: Item[]) => AngleBrackets;
export declare const braces: (...items: Item[]) => Braces;
export declare const block: (...items: Item[]) => Block;
export declare const fnblock: (...items: Item[]) => Sequence;
export declare const keyvalue: (k: string, v: Item) => Sequence;