44         char_{std::move(that.char_)}, provenances_{
61   std::size_t SizeInChars() const { return char_.size(); }  in SizeInChars()
63   CharBlock ToCharBlock() const { return {&char_[0], char_.size()}; }  in ToCharBlock()
67     return {&char_[start_.at(token)], TokenBytes(token)};  in TokenAt()
69   char CharAt(std::size_t j) const { return char_.at(j); }  in CharAt()
71     return {&char_[nextStart_], char_.size() - nextStart_};  in CurrentOpenToken()
81     char_.emplace_back(ch);  in PutNextTokenChar()
87     nextStart_ = char_.size();  in CloseToken()
113   char *GetMutableCharData() { return &char_[0]; }  in GetMutableCharData()
126     return (token + 1 >= start_.size() ? char_.size() : start_[token + 1]) -  in TokenBytes()
132   std::vector<char> char_;  variable