Function transformHtmlElementBlocks

packages/shared/src/html-utils.ts:238–270

(
  html: string,
  tagName: string,
  transform: (input: { attrs: string; body: string; tag: string }) => string,
)

}

export function transformHtmlElementBlocks(
  html: string,
  tagName: string,
  transform: (input: { attrs: string; body: string; tag: string }) => string,
): string {
  const tag = tagName.toLowerCase();
  const lower = html.toLowerCase();
  let out = '';
  let cursor = 0;
  while (cursor < html.length) {
    const open = findOpenTag(lower, tag, cursor);
    if (open < 0) {
      out += html.slice(cursor);
      break;
    }
    const openEnd = tagOpenEnd(html, open);
    const closeStart = findClosingTagStart(lower, tag, openEnd);
    const closeEnd = closeStart < 0 ? -1 : findClosingTagEnd(lower, tag, openEnd);
    if (closeStart < 0 || closeEnd < 0) {
      out += html.slice(cursor, openEnd);
      cursor = openEnd;
      continue;
    }
    out += html.slice(cursor, open);
    out += transform({
      attrs: html.slice(open + tag.length + 1, openEnd - 1),
      body: html.slice(openEnd, closeStart),
      tag: html.slice(open, closeEnd),
    });
    cursor = closeEnd;
  }
  return out;
}

export function removeCspMetaTags(html: string): string {
  const lower = html.toLowerCase();