/**
 * Specialized utility class for Control-Character diagnosis and repair
 * Can be used separately for debugging and analysis
 */
export declare class ControlCharDiagnostics {
    /**
     * Performs a complete diagnosis of Control Characters
     */
    static diagnose(jsonStr: string): {
        summary: {
            isValid: boolean;
            hasControlChars: boolean;
            totalIssues: number;
            canBeFixed: boolean;
        };
        issues: Array<{
            position: number;
            char: string;
            charCode: number;
            type: string;
            severity: 'low' | 'medium' | 'high';
            context: string;
            fieldName?: string;
        }>;
        suggestions: string[];
        repairPreview: string;
    };
    /**
     * Repairs Control Characters with detailed logging
     */
    static repair(jsonStr: string): {
        success: boolean;
        repairedJson: string;
        appliedFixes: Array<{
            position: number;
            original: string;
            replacement: string;
            type: string;
        }>;
        errors?: string[];
    };
    /**
     * Generates a detailed diagnosis report
     */
    static generateReport(jsonStr: string): string;
    /**
     * Quick fix for common cases
     */
    static quickFix(jsonStr: string): string;
    /**
     * Extracts context around a position
     */
    private static extractContext;
    /**
     * Generates a repair preview
     */
    private static generateRepairPreview;
}
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