import { ElementNode, LexicalNode, RangeSelection, LexicalEditor } from 'lexical';
import type { PointType } from 'lexical/LexicalSelection';
import type { TranslationBlock, NonTextNodeMatch, TranslateAPI, TranslationBlockWithSelection } from './types';
export declare const defaultTranslateAPI: TranslateAPI;
export declare function $copyNodeDeep<T extends LexicalNode>(node: T): T;
export declare const insertNodesAfter: (node: LexicalNode, nodesToInsert: LexicalNode[]) => void;
/**
 * 遍历顶层结点，获取需要翻译的结点列表
 * - HeadingNode
 * - ParagraphNode
 * - ListItemNode
 * - QuoteNode
 */
export declare const $extractTranslationNodes: (topLevelNodes: ElementNode[]) => ElementNode[];
/**
 * 以下 node 符合 translation node:
 * - heading node
 * - paragraph node
 * - list item node
 * - quote node
 */
export declare const $extractTextContentFromTranslationNode: (translationNode: ElementNode, selectedNodes?: LexicalNode[]) => string;
export declare const $extractTranslationBlocks: (editor: LexicalEditor, translationNodes?: ElementNode[]) => TranslationBlock[];
/**
 * 处理带有 `###key###` 的文本, 将普通文本转成 TextNode, 将 `###key###` 替换成 key 对应的 Node
 * @param {string} text - 如: "a ###1### b ###20### c"
 * @param {NonTextNodeMatch[]} matches - 如: [{key: 1, index: 2, length: 7}, {key: 20, index: 12, length: 8}]
 * @returns LexicalNode 数组, 如: [<text-node "a">, <node-key-1>, <text-node "b">, <node-key-20>, <text-node "c">, ]
 */
export declare const rearrangeNodes: (text: string, matches: NonTextNodeMatch[]) => LexicalNode[];
/**
 * 处理带有 `###key###` 的文本 (对应一个 translation node 的文本), 解析文本中 `###key###` 的信息,
 * 包括 Node Key, 在文本中的 index, 自身字符长度
 * 比如: "a ###1### b ###20### c" => [{key: 1, index: 2, length: 7}, {key: 20, index: 12, length: 8}]
 */
export declare const matchNonTextNodes: (text: string) => NonTextNodeMatch[];
export declare const $replaceTranslation: (translationBlock: TranslationBlock, editor: LexicalEditor) => LexicalNode | ElementNode | null;
export declare const $replaceTranslations: (editor: LexicalEditor, translationBlocks: TranslationBlock[]) => (LexicalNode | ElementNode | null)[];
export declare const $insertTranslations: (translationBlocks: TranslationBlock[], selection: RangeSelection) => void;
export declare const $preview: (translationBlocks: TranslationBlock[]) => string;
/**
 * TODO: 剥除未选中的部分
 */
export declare const $extractTranslationBlockWithSelection: (translationNode: ElementNode, point: PointType, backward?: boolean) => TranslationBlockWithSelection | null;
export declare const getTopLevelNodesFromSelection: (selection: RangeSelection) => ElementNode[];
export declare const $extractTranslationBlocksFromSelection: (editor: LexicalEditor, selection: RangeSelection) => TranslationBlockWithSelection[];