/**
 * Regex Executor - Timeout-Protected Regex Execution
 *
 * Executes regex patterns with timeout protection to prevent ReDoS attacks.
 * Even if a dangerous pattern passes validation, execution will be aborted
 * if it takes too long.
 *
 * This provides defense-in-depth: validation catches obvious issues,
 * timeout catches edge cases and ensures fail-safe behavior.
 */
import { type RegexValidationOptions } from './regex-validator.js';
export interface RegexExecutionOptions {
    /**
     * Maximum execution time in milliseconds (default: 100ms)
     * If regex.test() takes longer, it will be aborted
     */
    timeout?: number;
    /**
     * Validation options (passed to RegexValidator)
     */
    validationOptions?: RegexValidationOptions;
}
/**
 * Safe regex executor with validation and timeout protection
 */
export declare class RegexExecutor {
    /**
     * Test if a string matches a regex pattern (with safety checks)
     *
     * @param pattern - Regex pattern string
     * @param input - Input string to test
     * @param options - Execution options
     * @returns true if match, false otherwise
     * @throws {SecurityError} if pattern is unsafe or execution times out
     */
    static test(pattern: string, input: string, options?: RegexExecutionOptions): boolean;
    /**
     * Execute regex with timeout
     *
     * Note: JavaScript doesn't have native regex timeout, so we use timing checks.
     * This isn't perfect (can't interrupt running regex) but provides reasonable protection.
     */
    private static executeWithTimeout;
    /**
     * Matches function - similar to test() but can be used inline
     * Useful for filter expressions: matches(@.value, "pattern")
     */
    static matches(input: string, pattern: string, options?: RegexExecutionOptions): boolean;
}
/**
 * Helper: Create a safe regex tester function
 * Returns a function that can be reused for multiple tests with same pattern
 */
export declare function createSafeRegexTester(pattern: string, options?: RegexExecutionOptions): (input: string) => boolean;
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