replacestring

function replacestring(

  const s: msestring;

  oldsub: msestring;

  const newsub: msestring;

  const options: searchoptionsty = []

):msestring; overload;

function replacestring(

  const s: string;

  oldsub: string;

  const newsub: string;

  const options: searchoptionsty = []

):string; overload;