/**
 * XML Parsing Utilities
 *
 * Provides helper functions for parsing and navigating XML documents.
 * Used extensively by OOXML parsers (DOCX, XLSX, PPTX) and OpenOffice parsers (ODT, ODP, ODS).
 *
 * OOXML (Office Open XML) is an XML-based format used by Microsoft Office.
 * Documents are ZIP archives containing multiple XML files describing structure, content, and formatting.
 *
 * @module xmlUtils
 */
import { OfficeMetadata } from '../types';
/**
 * Parses an XML string into a DOM Document object.
 *
 * Uses the @xmldom/xmldom library to parse XML strings in a Node.js environment.
 * This is necessary because Node.js doesn't have a built-in DOM parser like browsers do.
 *
 * @param xml - The XML content as a string
 * @returns A Document object that can be queried using standard DOM methods
 * @example
 * ```typescript
 * const xmlString = '<root><item>Hello</item></root>';
 * const doc = parseXmlString(xmlString);
 * const items = doc.getElementsByTagName('item');
 * console.log(items[0].textContent); // "Hello"
 * ```
 */
export declare const parseXmlString: (xml: string) => Document;
/**
 * Gets all elements with a specific tag name and returns them as an array.
 *
 * This is a convenience wrapper around the DOM API's getElementsByTagName method
 * that converts the HTMLCollection/NodeList to a proper JavaScript array for easier manipulation.
 *
 * @param element - The element or document to search within
 * @param tagName - The tag name to search for (e.g., 'w:t', 'w:p', 'item')
 * @returns An array of matching elements (empty array if none found)
 * @example
 * ```typescript
 * const paragraphs = getElementsByTagName(doc, 'w:p');
 * paragraphs.forEach(p => console.log(p.textContent));
 * ```
 */
export declare const getElementsByTagName: (element: Element | Document, tagName: string) => Element[];
/**
 * Gets direct child elements with a specific tag name.
 * Unlike getElementsByTagName, this does not search recursively.
 *
 * @param parent - The parent element
 * @param tagName - The tag name to search for
 * @returns An array of matching direct child elements
 */
export declare const getDirectChildren: (parent: Element, tagName: string) => Element[];
/**
 * Parses OOXML document metadata from the docProps/core.xml file.
 *
 * OOXML documents (DOCX, XLSX, PPTX) store metadata in a standard location:
 * `docProps/core.xml` within the ZIP archive.
 *
 * This file follows the Dublin Core metadata standard with OOXML-specific extensions.
 * Common metadata elements:
 * - dc:title - Document title
 * - dc:creator - Original author
 * - cp:lastModifiedBy - User who last modified the document
 * - dcterms:created - Creation timestamp
 * - dcterms:modified - Last modification timestamp
 *
 * @param xmlContent - The raw XML content string from docProps/core.xml
 * @returns An OfficeMetadata object with extracted properties (empty object if parsing fails)
 * @example
 * ```typescript
 * const coreXml = files.find(f => f.path === 'docProps/core.xml').content.toString();
 * const metadata = parseOfficeMetadata(coreXml);
 *
 * console.log(metadata.author); // "John Smith"
 * console.log(metadata.title); // "Annual Report"
 * console.log(metadata.created); // Date object
 * ```
 *
 * @see https://learn.microsoft.com/en-us/openspecs/office_standards/ms-oe376/6c085e39-c695-4f83-91e8-3f277bb4e111
 */
export declare const parseOfficeMetadata: (xmlContent: string) => OfficeMetadata;
/**
 * Parses OOXML extended/app metadata from the docProps/app.xml file.
 *
 * This file contains application-specific metadata such as word count,
 * character count, paragraph count, slide count, and the application
 * that created the document.
 *
 * @param xmlContent - The raw XML content string from docProps/app.xml
 * @returns A partial OfficeMetadata object with extracted properties
 */
export declare const parseAppMetadata: (xmlContent: string) => Partial<OfficeMetadata>;