/** Maps between char offsets and 0-based { line, column } positions for one text. */
export declare class LineIndex {
    /** Char offset at which each line starts. `lineStarts[0]` is always 0. */
    private readonly lineStarts;
    private readonly length;
    constructor(text: string);
    /** Number of lines. A text with no trailing newline still counts its last line. */
    get lineCount(): number;
    /** 0-based line, 0-based column -> 0-based char offset. Out-of-range line clamps to [0, last]. */
    offsetAt(line: number, column: number): number;
    /** 0-based char offset -> { line, column }. Offset is clamped into [0, text.length]. */
    positionAt(offset: number): {
        line: number;
        column: number;
    };
}