import { Schema } from 'prosemirror-model';
export type Alignment = 'left' | 'center' | 'right' | 'justify';
/** Indent depth in 40px steps, like CKEditor/Google Docs. */
export declare const INDENT_STEP_PX = 40;
export declare const MAX_INDENT = 8;
export declare function cleanClass(value: string | null): string | null;
export declare function cleanId(value: string | null): string | null;
/** Bullet markers CSS understands; anything else falls back to default. */
export declare const BULLET_STYLES: readonly ["disc", "circle", "square"];
/** Numbering styles, keyed by the HTML `type` attribute letter. */
export declare const ORDERED_STYLES: Record<string, string>;
/**
 * Legal-style continuous numbering (1, 1.1, 1.1.1). Not a CSS
 * list-style-type: it serializes as `data-list-style="multilevel"` and is
 * rendered with CSS counters (see the editor stylesheet). Consumers rendering
 * the output need the same counter rules.
 */
export declare const MULTILEVEL_STYLE = "multilevel";
/** Builds the editor schema. List nodes are added via prosemirror-schema-list. */
export declare function createSchema(): Schema;
/** A shared default schema instance. */
export declare const defaultSchema: Schema<any, any>;