import type { EnhancedTranslationFile, FormatOptions, IFormatHandler, ValidationResult } from "../format.interface.js";
import type { TranslationFile } from "../translate.interface.js";
export interface CsvOptions extends FormatOptions {
    delimiter?: string;
    keyColumn?: string;
    valueColumn?: string;
    hasHeaders?: boolean;
    columns?: string[];
    multiLanguageColumns?: Record<string, string>;
    quote?: string;
    escape?: string;
    lineTerminator?: string;
    dialect?: "excel" | "unix" | "rfc4180" | "custom";
    skipEmptyLines?: boolean;
    trimFields?: boolean;
}
export declare class CsvHandler implements IFormatHandler {
    canHandle(filePath: string, content?: string): boolean;
    parse(content: string, options?: CsvOptions): EnhancedTranslationFile;
    serialize(data: EnhancedTranslationFile, options?: CsvOptions): string;
    getFileExtension(): string;
    validateStructure(data: TranslationFile): ValidationResult;
    private getDialectOptions;
    private isValidCsvContent;
    private detectDelimiter;
    private parseCSVContent;
    private parseCSVLine;
    private detectHeaders;
    private looksLikeTranslatableText;
    private validateDelimiterConsistency;
    private processRows;
    private detectKeyColumn;
    private detectMultiLanguageColumns;
    private detectValueColumn;
    private determineColumns;
    private createRecords;
    private escapeField;
}