Function collectCssSources

packages/lint/src/project.ts:72–109

(projectDir: string, html: string, compSrcPath?: string)

}

function collectCssSources(projectDir: string, html: string, compSrcPath?: string): CssSource[] {
  const sources: CssSource[] = [];

  let styleMatch: RegExpExecArray | null;
  const stylePattern = new RegExp(STYLE_BLOCK_RE.source, STYLE_BLOCK_RE.flags);
  while ((styleMatch = stylePattern.exec(html)) !== null) {
    sources.push({ content: styleMatch[1] ?? "" });
  }

  const linkRe = /<link\b[^>]*>/gi;
  let linkMatch: RegExpExecArray | null;
  while ((linkMatch = linkRe.exec(html)) !== null) {
    const tag = linkMatch[0];
    const rel = readHtmlAttr(tag, "rel") ?? "";
    if (!rel.split(/\s+/).some((part) => part.toLowerCase() === "stylesheet")) continue;
    const href = readHtmlAttr(tag, "href") ?? "";
    if (!isLocalStylesheetHref(href)) continue;

    const rootRelativePath = compSrcPath ? join(dirname(compSrcPath), href) : href;
    const stylesheet = resolveExistingLocalAsset(projectDir, rootRelativePath);
    if (!stylesheet) continue;
    sources.push({
      content: readFileSync(stylesheet.resolved, "utf-8"),
      rootRelativePath: stylesheet.rootRelativePath,
    });
  }

  let tagMatch: RegExpExecArray | null;
  const tagPattern = new RegExp(OPEN_TAG_RE.source, OPEN_TAG_RE.flags);
  while ((tagMatch = tagPattern.exec(html)) !== null) {
    const tag = tagMatch[0];
    const style = readHtmlAttr(tag, "style");
    if (!style) continue;
    sources.push({ content: style });
  }

  return sources;
}

function isRemoteOrInlineUrl(url: string): boolean {
  return /^(https?:|data:|blob:|\/\/|#)/i.test(url);