import type { LspPosition } from "./types.js";
/**
 * Position/offset conversion for LSP using UTF-16 code units (the LSP default
 * and the only encoding we negotiate from servers on initialize). Operates on
 * a per-file line index and is CRLF/LF aware: line breaks are \n (with optional
 * \r ignored as part of the line terminator).
 */
export interface LineIndex {
    /** Byte offsets of each line start (0..n). */
    lineStarts: number[];
}
export declare function computeLineIndex(text: string): LineIndex;
/** Convert a UTF-16 code-unit offset to an LSP position (0-based line/char). */
export declare function offsetToPosition(text: string, index: LineIndex, offset: number): LspPosition;
/** Convert an LSP position (UTF-16) to a JS string offset. */
export declare function positionToOffset(text: string, index: LineIndex, pos: LspPosition): number;
export declare function offsetToLineCharacter(text: string, offset: number): LspPosition;
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