public override Expr Clone()
{
LetterSym[] letters = new LetterSym[_letters.Length];
for (int i = 0; i < _letters.Length; i++)
{
letters[i] = (LetterSym)_letters[i].Clone();
}
return(new GroupedLetterSym(letters, _accent));
}
private T _Translate(LetterSym s)
{
return(__Translate(s));
}
protected abstract T __Translate(LetterSym s);