/**
 * Fast Code Search Engine
 * Uses ripgrep (rg) for blazing fast search, falls back to grep
 * Handles codebases of any size efficiently
 */
/**
 * Interface representing a single search result match.
 */
export interface SearchResult {
    file: string;
    line: number;
    column?: number;
    text: string;
    before?: string[];
    after?: string[];
}
/**
 * Configuration options for code search.
 */
export interface SearchOptions {
    cwd: string;
    pattern: string;
    /**
     * Glob pattern to filter files (e.g. "*.ts").
     */
    fileGlob?: string;
    isRegex?: boolean;
    caseSensitive?: boolean;
    wholeWord?: boolean;
    maxResults?: number;
    /**
     * Number of context lines to include before and after the match.
     */
    contextLines?: number;
    includeHidden?: boolean;
    excludeDirs?: string[];
}
/**
 * Resets the cached availability of ripgrep.
 * Intended for testing purposes only.
 */
export declare function resetRgAvailability(): void;
/**
 * Primary search function that delegates to ripgrep if available, otherwise falls back to grep.
 *
 * @param opts - The search options including pattern, cwd, and filters.
 * @returns A promise resolving to an array of search results.
 */
export declare function searchCode(opts: SearchOptions): Promise<SearchResult[]>;
/**
 * Options for file listing.
 */
export interface ListOptions {
    glob?: string;
    maxDepth?: number;
    excludeDirs?: string[];
    type?: 'file' | 'dir' | 'all';
}
/**
 * Lists files in a directory using 'fd' or 'find'.
 *
 * @param cwd - Directory to search in.
 * @param options - Filtering options.
 * @returns List of file paths relative to cwd.
 */
export declare function listFiles(cwd: string, options?: ListOptions): Promise<string[]>;
/**
 * Counts the number of lines in a file efficiently using 'wc -l'.
 *
 * @param filePath - Path to the file.
 * @returns Number of lines.
 */
export declare function countLines(filePath: string): Promise<number>;
/**
 * Result of reading a file range.
 */
export interface ReadFileResult {
    content: string;
    totalLines: number;
}
/**
 * Reads a specific range of lines from a file.
 *
 * @param filePath - Path to the file.
 * @param startLine - 1-based start line.
 * @param endLine - 1-based end line (inclusive).
 * @returns Content and total line count.
 */
export declare function readFileRange(filePath: string, startLine?: number, endLine?: number): Promise<ReadFileResult>;
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