/**
 * @file Format Scorer
 * Evaluates response format compliance (JSON, markdown, code, etc.)
 */
import type { FormatScorerConfig, ScoreResult, ScorerInput, ScorerRule } from "../../../types/index.js";
import { BaseRuleScorer } from "./baseRuleScorer.js";
/**
 * FormatScorer evaluates response format against expected formats
 */
export declare class FormatScorer extends BaseRuleScorer {
    private _formatConfig;
    constructor(config?: FormatScorerConfig);
    /**
     * Get format-specific configuration
     */
    get formatConfig(): FormatScorerConfig;
    /**
     * Get rules for this scorer
     */
    getRules(): ScorerRule[];
    /**
     * Evaluate a single format rule
     */
    evaluateRule(rule: ScorerRule, input: ScorerInput): {
        passed: boolean;
        score: number;
    };
    /**
     * Validate format against allowed formats
     */
    private _validateFormat;
    /**
     * Detect the format of the text
     */
    private _detectFormat;
    /**
     * Check if text is valid JSON
     */
    private _isValidJson;
    /**
     * Check if text appears to be YAML
     */
    private _isYaml;
    /**
     * Check if text is XML
     */
    private _isXml;
    /**
     * Check if text has code blocks
     */
    private _hasCodeBlocks;
    /**
     * Check if text has markdown elements
     */
    private _hasMarkdownElements;
    /**
     * Check if text is a numbered list
     */
    private _isNumberedList;
    /**
     * Check if text is a bullet list
     */
    private _isBulletList;
    /**
     * Check if text has a table
     */
    private _hasTable;
    /**
     * Check markdown-specific requirements
     */
    private _checkMarkdownRequirements;
    /**
     * Check list-specific requirements
     */
    private _checkListRequirements;
    /**
     * Validate JSON against schema (basic validation)
     */
    private _validateJsonSchema;
    /**
     * Override score to add detailed format analysis
     */
    score(input: ScorerInput): Promise<ScoreResult>;
}
/**
 * Factory function for creating FormatScorer instances
 */
export declare function createFormatScorer(config?: FormatScorerConfig): Promise<FormatScorer>;
/**
 * Pre-configured format scorer presets
 */
export declare const FormatScorerPresets: {
    /** JSON format */
    readonly json: () => FormatScorer;
    /** Markdown format */
    readonly markdown: () => FormatScorer;
    /** Markdown with headings required */
    readonly markdownWithHeadings: () => FormatScorer;
    /** Bullet list format */
    readonly bulletList: () => FormatScorer;
    /** Numbered list format */
    readonly numberedList: () => FormatScorer;
    /** Code response */
    readonly code: () => FormatScorer;
    /** Plain text only */
    readonly plainText: () => FormatScorer;
};