import type { Position } from "./types.ts";
/**
 * Convert byte offset in file content to LSP Position (0-based line/character).
 * LSP spec mandates UTF-16 code unit counting. Surrogate pairs (codepoints > U+FFFF)
 * count as 2 UTF-16 code units, which is the natural behavior of charCodeAt iteration.
 */
export declare function offsetToPosition(text: string, offset: number): Position;
/**
 * Convert LSP Position (0-based line/character) to byte offset in file content.
 * Handles UTF-16 surrogate pairs per LSP spec.
 */
export declare function positionToOffset(text: string, position: Position): number;
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