How to write the Python text query code
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/ / text query
/ / what needs to be done
/ / 1. Put each line of a text into the vector.
/ / 2. Record the line number of each word
/ / 3. Output each line of words according to the line number.
Class TextQuery
{
Public:
Typedef vector::size_type line_no
Void store_file (ifstream& is)
Setprint_lineno (string&) const
Stringprint_linestring (line_no) const
Private:
Vectorline_of_text
Mapword_map
}
Void TextQuery::store_file (ifstream& is)
{
String word
While (getline (is,word))
{
Line_of_text.push_back (word)
}
Line_no num
For (num=0; num! = line_of_text.size (); + + num)
{
String line, tempword
Istringstream istream (line_of_ text [num])
While (istream > > word)
{
Word_ map [word] .insert (num)
}
}
}
Set TextQuery::print_lineno (string& str)
{
Map::iterator iter = word_map.find (str)
If (iter = = word_map.end ())
{
Return set ()
}
Return iter- > second
}
String TextQuery::print_linestring (line_no num)
{
If (num < line_of_text.size ())
{
Return line_of_ text[num]
}
}
Void print_result (const set& los, const string& str, const TextQuery & textclass)
{
Cout
