import { RichTextElement, BlockElement, BoxElement } from "../../interface";
import "../remote-carets/FakeCaretBox";
export declare function getNodeTextLength(node: Node): number;
export declare function convertToTextWithFillChar(textElement: RichTextElement): string;
export declare function getTextElementLength(textElement: RichTextElement): number;
export declare function createRange(richTextElement: RichTextElement, offset: number, options?: {
    selectNext: boolean;
}): Range;
export declare function getNodeOffsetInTextElement(richTextElement: RichTextElement, node: Node, offset: number): number;
export declare function isRangeAtTextBegin(textElement: RichTextElement, range: Range): boolean;
export declare function isRangeAtTextEnd(textElement: RichTextElement, range: Range): boolean;
export declare function getTextCaretPos(richTextElement: RichTextElement, node: Node, nodeOffset: number): number;
export declare function splitTextBlock(block: BlockElement, offset: number, options: {
    keepFormat: boolean;
}): BlockElement;
export declare function isAfterVirtualNode(range: Range): boolean;
export declare function isAfterBox(range: Range): boolean;
export declare function isBeforeVirtualNode(range: Range): boolean;
export declare function getNodeNeighbors(range: Range): {
    prev: Node | undefined | null;
    next: Node | undefined | null;
};
export declare function getParentSpan(textElement: RichTextElement, node: Node): HTMLElement | null;
export declare function getChildRange(textElement: RichTextElement, node: Node): {
    start: number;
    end: number;
};
export declare function getBoxOffsetInBlock(block: BlockElement, boxElem: BoxElement): number;
export declare function isEndWithRemoteCaret(textElement: RichTextElement): boolean;
export declare function isInChildSpan(range: Range): boolean;
export declare function getFocusedInlineCode(range: Range): HTMLSpanElement | null;
export declare function isChildSpanWillBeRemoved(range: Range, direction: 'forward' | 'backward'): boolean;