/**
 * Content Handlers Module
 *
 * Central routing for content-type specific sanitization handlers.
 * Detects MIME type from Content-Type header and routes to appropriate handler.
 *
 * Supported content types:
 * - application/pdf -> PDF handler
 * - application/json -> JSON handler
 * - image/svg+xml -> SVG handler
 *
 * Unsupported types return structured rejection (no throw).
 */
import type { HandlerResult } from './types.js';
/**
 * Normalize Content-Type header to base MIME type
 *
 * Examples:
 * - "application/pdf; charset=utf-8" -> "application/pdf"
 * - "application/json" -> "application/json"
 * - "IMAGE/SVG+XML" -> "image/svg+xml"
 *
 * @param contentType - Raw Content-Type header value
 * @returns Normalized MIME type (lowercase, parameters stripped)
 */
export declare function normalizeMimeType(contentType: string): string;
/**
 * Route content to appropriate handler based on MIME type
 *
 * @param content - Raw content (string or Buffer)
 * @param contentType - Content-Type header value
 * @returns Handler result (success or error/rejected)
 */
export declare function routeContentHandler(content: string | Buffer, contentType: string): Promise<HandlerResult>;
export type { HandlerResult, HandlerSuccessResult, HandlerErrorResult } from './types.js';
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