/**
 * Fuzzy file matching utilities for file tree search.
 * Provides VS Code-style fuzzy matching with substring support,
 * match index calculation for highlighting, and scoring for ranking.
 */
/**
 * Find the indices of fuzzy matched characters in the target string.
 * Prioritizes matching in the filename first for filename-only queries.
 * For path queries (containing "/"), tries to find contiguous matches first.
 * Returns the indices where each query character was matched.
 */
export declare function findFuzzyMatchIndices(query: string, target: string): number[];
/**
 * Match query characters within a specific range of the target string.
 * Non-alphanumeric query characters that aren't found are skipped,
 * matching the behavior of buildFuzzyPattern which converts them to wildcards.
 */
export declare function matchInRange(query: string, target: string, start: number, end: number): number[];
/**
 * Calculate a score for fuzzy match quality (higher = better match).
 * Prioritizes: exact filename matches, filename prefix matches, consecutive matches,
 * word boundary matches, and shorter paths.
 */
export declare function calculateFuzzyMatchScore(query: string, filePath: string, matchIndices: number[]): number;
/**
 * Convert a search query to a case-insensitive fuzzy glob pattern for ripgrep.
 * Splits query at last "/" - path section uses tight matching (exact dirs),
 * filename section uses typo-tolerant wildcards between chars.
 */
export declare function queryToFuzzyGlob(query: string): string;
/**
 * Build a fuzzy pattern for a single segment (no path separators).
 */
export declare function buildFuzzyPattern(segment: string, typoTolerant: boolean): string;