Function lines

packages/2d/src/lib/code/CodeRange.ts:30–35

(from: number, to?: number)

 *             cover only one line.
 */
export function lines(from: number, to?: number): CodeRange {
  return [
    [from, 0],
    [to ?? from, Infinity],
  ];
}

/**
 * Create a code range that highlights the given word.