Pimpl(Paragraph * owner);
/// "Copy constructor"
Pimpl(Pimpl const &, Paragraph * owner);
Pimpl(Paragraph * owner);
/// "Copy constructor"
Pimpl(Pimpl const &, Paragraph * owner);
void setChange(pos_type pos, Change const & change);
/// accept changes within the given range
void acceptChanges(pos_type start, pos_type end);
void setChange(pos_type pos, Change const & change);
/// accept changes within the given range
void acceptChanges(pos_type start, pos_type end);