140 void AppendString(StringPiece str, string* out) {  in AppendString()  argument
141   out->append(str.begin(), str.end());  in AppendString()
196                           string* out) const {  in AppendSubst()
199       AppendString(subst, out);  in AppendSubst()
202       AppendString(str, out);  in AppendSubst()
210       AppendString(subst, out);  in AppendSubst()
213       AppendString(subst.substr(0, subst_percent_index), out);  in AppendSubst()
215                               str.size() - pat_.size() + 1), out);  in AppendSubst()
216       AppendString(subst.substr(subst_percent_index + 1), out);  in AppendSubst()
220   AppendString(str, out);  in AppendSubst()
224                              string* out) const {  in AppendSubstRef()
226     AppendSubst(str, subst, out);  in AppendSubstRef()
230   out->append(s.begin(), s.end());  in AppendSubstRef()
231   out->append(subst.begin(), subst.end());  in AppendSubstRef()