/**
 * CSV Parser - Synchronous
 *
 * RFC 4180 compliant CSV parser.
 * Provides parseCsv function and low-level parsing generators.
 */
import type { CsvParseOptions, CsvParseArrayOptions, CsvParseObjectOptions, CsvParseResult, CsvRecordError, RecordWithInfo } from "../types.js";
import type { ParseConfig } from "./config.js";
import type { RowProcessResult } from "./row-processor.js";
import type { ParseState } from "./state.js";
/**
 * Parse input using fast mode (no quote detection)
 */
export declare function parseFastMode(input: string, config: ParseConfig, state: ParseState, errors: CsvRecordError[]): Generator<RowProcessResult, void, undefined>;
/**
 * Parse input using Scanner-based batch scanning.
 * This is a high-performance alternative that uses indexOf-based field scanning
 * instead of character-by-character parsing.
 *
 * Key optimizations:
 * 1. Uses indexOf to find delimiters/quotes/newlines in bulk
 * 2. Uses slice for field extraction (avoids string concatenation)
 * 3. Processes entire rows at once instead of character-by-character
 */
export declare function parseWithScanner(input: string, config: ParseConfig, state: ParseState, errors: CsvRecordError[]): Generator<RowProcessResult, void, undefined>;
/**
 * Parse CSV string - returns string[][] when no options provided.
 */
export declare function parseCsv(input: string): string[][];
/**
 * Parse CSV string - returns string[][] when headers is false/undefined and no info option.
 *
 * Note: When `info: true` is set, returns CsvParseResult instead.
 */
export declare function parseCsv(input: string, options: CsvParseArrayOptions & {
    info?: false;
}): string[][];
/**
 * Parse CSV string - returns CsvParseResult with RecordWithInfo when info: true (array mode).
 */
export declare function parseCsv(input: string, options: CsvParseArrayOptions & {
    info: true;
}): CsvParseResult<RecordWithInfo<string[]>>;
/**
 * Parse CSV string - returns CsvParseResult when headers are enabled.
 */
export declare function parseCsv(input: string, options: CsvParseObjectOptions & {
    info?: false;
}): CsvParseResult<Record<string, unknown>>;
/**
 * Parse CSV string - returns CsvParseResult with RecordWithInfo when info: true (object mode).
 */
export declare function parseCsv(input: string, options: CsvParseObjectOptions & {
    info: true;
}): CsvParseResult<RecordWithInfo<Record<string, unknown>>>;
/**
 * Parse CSV string - general overload for backward compatibility.
 */
export declare function parseCsv(input: string, options: CsvParseOptions): string[][] | CsvParseResult<Record<string, string>> | CsvParseResult<Record<string, unknown>> | CsvParseResult<RecordWithInfo<Record<string, unknown>>> | CsvParseResult<RecordWithInfo<string[]>>;