/**
 * Static regex patterns for compact notation processing.
 * Defined at module level to avoid recompilation on each function call.
 */
/**
 * Expands compact notation (k, m, b, t) to full numbers using string manipulation.
 * Handles formats like: 1k, 1.5m, 2B, 1M, 2.5T (case-insensitive)
 * Uses string arithmetic to avoid precision loss with large numbers.
 *
 * @param value - The string value that may contain compact notation
 * @returns The expanded numeric string
 *
 * @example
 * expandCompactNotation("1k")     // "1000"
 * expandCompactNotation("1.5m")   // "1500000"
 * expandCompactNotation("2B")     // "2000000000"
 * expandCompactNotation("1M")     // "1000000"
 * expandCompactNotation("2.5T")   // "2500000000000"
 * expandCompactNotation("0.5k")   // "500"
 */
export declare function expandCompactNotation(value: string): string;