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Created July 14, 2018 09:40
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C++ 文本查询程序设计（12.3.1）
@JeOam
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JeOam commented Jul 14, 2018 •
edited
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QueryResult TextQuery::query(const string &sought) const
{
  static shared_ptr<set<line_no>> nodata(new set<line_no>);
  auto loc = wm.find(sought);
  if (loc == wm.end()) 
    return QueryResult(sought, nodata, file)
  else
    return QueryResult(sought, loc->second, file);
}

@JeOam
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JeOam commented Jul 14, 2018 

ostream &print(ostream & os, cosnt QueryResult &qr)
{
  os << qr.sought << " occurs " << qr.lines->size() << " "
     << make_plural(qr.lines->size(), "time", "s") << endl;
  for (auto num: *qr.lines)
    os << "\t(line )" << num + 1 << ") "
       << *(qr.file->begin() + num) << endl;
  return os;
}

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