Function findRootTag

packages/lint/src/utils.ts:95–123

(source: string)

}

export function findRootTag(source: string): OpenTag | null {
  const bodyOpenMatch = /<body\b([^>]*)>/i.exec(source);
  const bodyCloseMatch = /<\/body>/i.exec(source);
  if (
    bodyOpenMatch &&
    (readAttr(bodyOpenMatch[0], "data-composition-id") ||
      readAttr(bodyOpenMatch[0], "data-width") ||
      readAttr(bodyOpenMatch[0], "data-height"))
  ) {
    return {
      raw: bodyOpenMatch[0],
      name: "body",
      attrs: bodyOpenMatch[1] ?? "",
      index: bodyOpenMatch.index,
    };
  }
  const bodyStart = bodyOpenMatch ? bodyOpenMatch.index + bodyOpenMatch[0].length : 0;
  const bodyEnd =
    bodyOpenMatch && bodyCloseMatch && bodyCloseMatch.index > bodyStart
      ? bodyCloseMatch.index
      : source.length;
  const bodyContent = bodyOpenMatch ? source.slice(bodyStart, bodyEnd) : source;
  const bodyTags = extractOpenTags(bodyContent);
  for (const tag of bodyTags) {
    if (["script", "style", "meta", "link", "title"].includes(tag.name)) continue;
    return { ...tag, index: tag.index + bodyStart };
  }
  return null;
}

export function readAttr(tagSource: string, attr: string): string | null {
  if (!tagSource) return null;