/**
 * Supported language identifiers for syntax highlighting in Markdown
 */
export declare const LANGUAGES: string[];
/**
 * Language aliases mapping alternative names to standardized identifiers
 */
export declare const LANGUAGE_ALIASES: Record<string, string>;
/**
 * Detects programming language from a class name
 *
 * @param className - The class name to analyze
 * @returns The detected language identifier or empty string if none found
 */
export declare function detectLanguage(className: string): string;
/**
 * Usage frequency ranking for programming languages (higher values = more common)
 * Based on typical web content and popularity metrics
 */
export declare const LANGUAGE_USAGE_RANK: Record<string, number>;
/**
 * Detects programming language based on code content analysis
 * Prioritizes high-usage languages for more efficient detection
 *
 * @param code - The code content to analyze
 * @returns Detected language identifier or empty string if undetected
 */
export declare function detectLanguageFromContent(code: string): string;
/**
 * Get ranking score for a particular language
 * Used for sorting languages by usage frequency
 *
 * @param language - The language identifier to get ranking for
 * @returns The ranking score (higher = more common)
 */
export declare function getLanguageRank(language: string): number;
/**
 * Comprehensive language detection that combines class-based and content-based detection
 *
 * @param className - The class name to analyze
 * @param content - Optional code content to analyze if class-based detection fails
 * @param element - Optional HTML element to check for data attributes
 * @returns The detected language identifier or empty string
 */
export declare function detectProgrammingLanguage(className: string, content?: string, element?: HTMLElement): string;