@nuxtjs/mdc/dist/runtime/parser/handlers/utils.js

Nuxt MDC module

export function parseThematicBlock(lang) {
  if (!lang?.trim()) {
    return {
      language: void 0,
      highlights: void 0,
      filename: void 0,
      meta: void 0
    };
  }
  const languageMatches = lang.replace(/[{|[](.+)/, "").match(/^[^ \t]+(?=[ \t]|$)/);
  const highlightTokensMatches = lang.match(/\{([^}]*)\}/);
  const filenameMatches = lang.match(/\[(.*)\]/);
  const meta = lang.replace(languageMatches?.[0] ?? "", "").replace(highlightTokensMatches?.[0] ?? "", "").replace(filenameMatches?.[0] ?? "", "").trim();
  let filename = void 0;
  if (filenameMatches?.[1]) {
    filename = filenameMatches[1].replace(/\\([[\]{}().*+?^$|])/g, "$1");
  }
  return {
    language: languageMatches?.[0] || void 0,
    highlights: parseHighlightedLines(highlightTokensMatches?.[1] || void 0),
    // https://github.com/nuxt/content/pull/2169
    filename,
    meta
  };
}
function parseHighlightedLines(lines) {
  const lineArray = String(lines || "").split(",").filter(Boolean).flatMap((line) => {
    const [start, end] = line.trim().split("-").map((a) => Number(a.trim()));
    return Array.from({ length: (end || start) - start + 1 }).map((_, i) => start + i);
  });
  return lineArray.length ? lineArray : void 0;
}
const TAG_NAME_REGEXP = /^<\/?([\w-]+)(\s[^>]*?)?\/?>/;
export function getTagName(value) {
  const result = String(value).match(TAG_NAME_REGEXP);
  return result && result[1];
}