/**
 * Ported from opencode (https://github.com/opencodenpm/opencode).
 * Original by opencode contributors.
 * Adapted for llxprt-code by Vybestack.
 */
/**
 * Type definition for replacer functions that generate potential matches
 */
export type Replacer = (content: string, find: string) => Generator<string, void, unknown>;
/**
 * Levenshtein distance algorithm implementation
 */
export declare function levenshtein(a: string, b: string): number;
/**
 * Simple exact match replacer
 */
export declare const SimpleReplacer: Replacer;
/**
 * Replacer that matches lines with trimmed content
 */
export declare const LineTrimmedReplacer: Replacer;
/**
 * Replacer that matches blocks using first and last line anchors with fuzzy middle content
 */
export declare const BlockAnchorReplacer: Replacer;
/**
 * Replacer that normalizes whitespace before matching
 */
export declare const WhitespaceNormalizedReplacer: Replacer;
/**
 * Replacer that matches content regardless of indentation level
 */
export declare const IndentationFlexibleReplacer: Replacer;
/**
 * Replacer that handles escape sequences
 */
export declare const EscapeNormalizedReplacer: Replacer;
/**
 * Replacer that yields all exact matches for handling multiple occurrences
 */
export declare const MultiOccurrenceReplacer: Replacer;
/**
 * Replacer that tries to match trimmed versions of the find string
 */
export declare const TrimmedBoundaryReplacer: Replacer;
/**
 * Replacer that uses first and last lines as context anchors with similarity checking
 */
export declare const ContextAwareReplacer: Replacer;
/**
 * Main fuzzy replace function that tries multiple replacement strategies
 * @param content - The content to search in
 * @param oldString - The string to find and replace
 * @param newString - The replacement string
 * @param replaceAll - Whether to replace all occurrences (default: false)
 * @returns Object with result and occurrences count, or null if no replacement was made
 */
export declare function fuzzyReplace(content: string, oldString: string, newString: string, replaceAll?: boolean): {
    result: string;
    occurrences: number;
} | null;