Function resolveLang

packages/react/src/lib/shiki.ts:140–147

(lang: string)

});

export function resolveLang(lang: string): SupportedLang | null {
  const l = lang.trim().toLowerCase();
  if (supportedSet.has(l)) {
    if (l in LANG_ALIASES) return LANG_ALIASES[l]!;
    return l as SupportedLang;
  }
  return null;
}

export function isSupportedLang(lang: string): boolean {
  return supportedSet.has(lang.trim().toLowerCase());