import { Attribute, FormatValue, VElement } from '@textbus/core';
import { Matcher, MatchRule } from './matcher';
import { AttributeLoader } from '@textbus/platform-browser';
export declare class BlockAttrLoader<T extends FormatValue> extends Matcher<T, Attribute<T>> implements AttributeLoader<any> {
    attrName: string;
    constructor(attrName: string, attribute: Attribute<T>, rule: MatchRule);
    match(p: HTMLElement): boolean;
    read(node: HTMLElement): {
        attribute: Attribute<T>;
        value: T;
    };
}
export declare class BlockAttrFormatter implements Attribute<string> {
    name: string;
    attrName: string;
    constructor(name: string, attrName: string);
    render(host: VElement, formatValue: FormatValue): void;
}
export declare const dirFormatter: BlockAttrFormatter;
export declare const dirFormatLoader: BlockAttrLoader<FormatValue>;