Function expandLineRanges

apps/docs/src/components/code-block.tsx:19–32

(ranges: HighlightLine[])

};

function expandLineRanges(ranges: HighlightLine[]): Set<number> {
  const lines = new Set<number>();
  for (const range of ranges) {
    if (typeof range === "number") {
      lines.add(range);
    } else {
      const [start, end] = range;
      for (let i = start; i <= end; i++) {
        lines.add(i);
      }
    }
  }
  return lines;
}

function escapeRegExp(str: string): string {
  return str.replace(/[.*+?^${}()|[\]\\]/g, "\\$&");