import { Token, Tokens } from 'marked';
import { MarkdownEditorCalloutType, MarkdownEditorLabels } from './types';
/**
 * GitHub's alerts. A quote at the top level of the document whose first line
 * is `[!NOTE]`, `[!TIP]`, `[!IMPORTANT]`, `[!WARNING]` or `[!CAUTION]` — in
 * any case, alone on the line — renders as a callout of that type.
 *
 * The marker becomes the callout's title: an atom holding the marker in
 * `data-md-src`, left where marked read it, first in the quote's first
 * paragraph and before the line break, so serializing and mapping the block
 * need nothing new. The rich surface reveals the title like formatting: with
 * the caret beside it the marker shows, and editing it edits the source.
 */
export declare const CALLOUT_MARKER: RegExp;
export declare const CALLOUT_CLASS = "tx-markdown-editor__callout";
export declare const CALLOUT_TITLE_CLASS = "tx-markdown-editor__callout-title";
export type MarkdownCalloutTitles = Record<MarkdownEditorCalloutType, string>;
export declare function calloutTitles(labels: MarkdownEditorLabels): MarkdownCalloutTitles;
export declare function calloutTypeOf(marker: string): MarkdownEditorCalloutType | null;
export interface CalloutToken extends Tokens.Blockquote {
    callout?: MarkdownEditorCalloutType;
}
/** Marks a quote that opens with a marker. Only top-level blocks are passed in: a nested quote is never a callout. */
export declare function markCallout(token: Token): void;