Function buildUnionPattern

apps/docs/src/components/code-block.tsx:38–41

(parts: string[] | undefined)

}

function buildUnionPattern(parts: string[] | undefined): RegExp | null {
  if (!parts || parts.length === 0) return null;
  return new RegExp(`(${parts.map(escapeRegExp).join("|")})`, "g");
}

function isAstNode(x: unknown): x is rendererNode {
  return typeof x === "object" && x !== null && "type" in (x as object);