export interface ExtractedParam {
    /** The full param string including $ prefix (e.g., "$userId", "-$optional") */
    fullParam: string;
    /** The param name without $ prefix (e.g., "userId", "optional") */
    paramName: string;
    /** Whether this is an optional param (prefixed with -$) */
    isOptional: boolean;
    /** Whether this param name is valid */
    isValid: boolean;
}
/**
 * Extracts param names from a route path segment.
 *
 * Handles these patterns:
 * - $paramName                     -> extract "paramName"
 * - {$paramName}                   -> extract "paramName"
 * - prefix{$paramName}suffix       -> extract "paramName"
 * - {-$paramName}                  -> extract "paramName" (optional)
 * - prefix{-$paramName}suffix      -> extract "paramName" (optional)
 * - $ or {$}                       -> wildcard, skip validation
 */
export declare function extractParamsFromSegment(segment: string): Array<ExtractedParam>;
/**
 * Extracts all params from a route path.
 *
 * @param path - The route path (e.g., "/users/$userId/posts/$postId")
 * @returns Array of extracted params with validation info
 */
export declare function extractParamsFromPath(path: string): Array<ExtractedParam>;
/**
 * Validates a single param name.
 *
 * @param paramName - The param name to validate (without $ prefix)
 * @returns Whether the param name is valid
 */
export declare function isValidParamName(paramName: string): boolean;
/**
 * Gets all invalid params from a route path.
 *
 * @param path - The route path
 * @returns Array of invalid param info
 */
export declare function getInvalidParams(path: string): Array<ExtractedParam>;