rn-url-preview/lib/utils.d.ts

React Native URL Preview component

/// <reference types="react" />
import { PreviewData } from "./types";
/**
 * Regular expression to match email addresses
 */
export declare const REGEX_EMAIL: RegExp;
/**
 * Regular expression to match image content types
 */
export declare const REGEX_IMAGE_CONTENT_TYPE: RegExp;
/**
 * Regular expression to extract image source from img tags
 * Considers empty line after img tag and takes only the src field
 * Space before src to avoid matching data-src attributes
 */
export declare const REGEX_IMAGE_TAG: RegExp;
/**
 * Regular expression to match URLs (http, https, ftp protocols)
 */
export declare const REGEX_LINK: RegExp;
/**
 * Regular expression to extract meta tags
 * Handles both property and name attributes with content
 * Supports both single and double quotes
 */
export declare const REGEX_META: RegExp;
/**
 * Regular expression to extract page title
 */
export declare const REGEX_TITLE: RegExp;
/**
 * Recursively processes and renders special elements based on given filters and properties.
 *
 * @param {React.ReactNode} children - The children elements to be rendered.
 * @param {Object} props - Additional properties to pass to the children elements.
 * @returns {React.ReactNode[]} - The filtered and modified children elements.
 */
export declare function renderSpecialElementHelper({ children, props, }: {
    children: React.ReactNode;
    props?: {
        [key: string]: {
            [key: string]: any;
        };
    };
}): React.ReactNode[];
/**
 * Resolves relative image URLs to absolute URLs
 *
 * @param {string} baseUrl - The base URL of the page
 * @param {string} imageUrl - The image URL to resolve
 * @returns {string|undefined} - The resolved absolute image URL or undefined
 */
export declare const getActualImageUrlHelper: (baseUrl: string, imageUrl?: string) => string | undefined;
/**
 * Decodes HTML entities in text
 *
 * @param {string} text - The text to decode
 * @returns {string|undefined} - The decoded text or undefined
 */
export declare const getHtmlEntitiesDecodedTextHelper: (text?: string) => string | undefined;
/**
 * Helper to extract content from meta tags based on property/name type
 *
 * @param {string} left - First string (could be property/name or content)
 * @param {string} right - Second string (could be property/name or content)
 * @param {string} type - The type to look for (e.g., "og:title", "description")
 * @returns {string|undefined} - The extracted content or undefined
 */
export declare const getContentHelper: (left: string, right: string, type: string) => string | undefined;
/**
 * Helper to process image URLs for preview data
 *
 * @param {string} url - The image URL to process
 * @returns {Promise<string|undefined>} - The processed image URL or undefined
 */
export declare const getPreviewDataImageHelper: (url?: string) => Promise<string | undefined>;
/**
 * Extracts preview data (title, description, image) from a URL
 *
 * @param {string} text - The text containing a URL
 * @param {number} requestTimeout - Timeout for the fetch request in milliseconds
 * @returns {Promise<PreviewData>} - The extracted preview data
 */
export declare const getPreviewDataHelper: (text: string, requestTimeout?: number) => Promise<PreviewData>;